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| author | Anton Samokhvalov <pg83@yandex.ru> | 2022-02-10 16:45:17 +0300 |
|---|---|---|
| committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:17 +0300 |
| commit | d3a398281c6fd1d3672036cb2d63f842d2cb28c5 (patch) | |
| tree | dd4bd3ca0f36b817e96812825ffaf10d645803f2 /contrib/libs/libunwind | |
| parent | 72cb13b4aff9bc9cf22e49251bc8fd143f82538f (diff) | |
| download | ydb-d3a398281c6fd1d3672036cb2d63f842d2cb28c5.tar.gz | |
Restoring authorship annotation for Anton Samokhvalov <pg83@yandex.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/libunwind')
27 files changed, 9495 insertions, 9495 deletions
diff --git a/contrib/libs/libunwind/include/__libunwind_config.h b/contrib/libs/libunwind/include/__libunwind_config.h index 8cb3981f60..e87bcf4003 100644 --- a/contrib/libs/libunwind/include/__libunwind_config.h +++ b/contrib/libs/libunwind/include/__libunwind_config.h @@ -1,19 +1,19 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#ifndef ____LIBUNWIND_CONFIG_H__ -#define ____LIBUNWIND_CONFIG_H__ - -#if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \ - !defined(__ARM_DWARF_EH__) +// +//===----------------------------------------------------------------------===// + +#ifndef ____LIBUNWIND_CONFIG_H__ +#define ____LIBUNWIND_CONFIG_H__ + +#if defined(__arm__) && !defined(__USING_SJLJ_EXCEPTIONS__) && \ + !defined(__ARM_DWARF_EH__) #define _LIBUNWIND_ARM_EHABI -#endif - +#endif + #define _LIBUNWIND_HIGHEST_DWARF_REGISTER_X86 8 #define _LIBUNWIND_HIGHEST_DWARF_REGISTER_X86_64 32 #define _LIBUNWIND_HIGHEST_DWARF_REGISTER_PPC 112 @@ -181,4 +181,4 @@ # define _LIBUNWIND_HIGHEST_DWARF_REGISTER 287 #endif // _LIBUNWIND_IS_NATIVE_ONLY -#endif // ____LIBUNWIND_CONFIG_H__ +#endif // ____LIBUNWIND_CONFIG_H__ diff --git a/contrib/libs/libunwind/include/libunwind.h b/contrib/libs/libunwind/include/libunwind.h index 8e1a4266cf..8303c1a04c 100644 --- a/contrib/libs/libunwind/include/libunwind.h +++ b/contrib/libs/libunwind/include/libunwind.h @@ -1,24 +1,24 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// +// +// // Compatible with libunwind API documented at: -// http://www.nongnu.org/libunwind/man/libunwind(3).html -// -//===----------------------------------------------------------------------===// - -#ifndef __LIBUNWIND__ -#define __LIBUNWIND__ - -#include "__libunwind_config.h" - -#include <stdint.h> -#include <stddef.h> - -#ifdef __APPLE__ +// http://www.nongnu.org/libunwind/man/libunwind(3).html +// +//===----------------------------------------------------------------------===// + +#ifndef __LIBUNWIND__ +#define __LIBUNWIND__ + +#include "__libunwind_config.h" + +#include <stdint.h> +#include <stddef.h> + +#ifdef __APPLE__ #if __clang__ #if __has_include(<Availability.h>) #include <Availability.h> @@ -35,140 +35,140 @@ #include <AvailabilityMacros.h> #ifdef AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER #define LIBUNWIND_AVAIL AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER - #else + #else #define LIBUNWIND_AVAIL __attribute__((unavailable)) - #endif + #endif #endif -#else - #define LIBUNWIND_AVAIL -#endif - +#else + #define LIBUNWIND_AVAIL +#endif + #if defined(_WIN32) && defined(__SEH__) #define LIBUNWIND_CURSOR_ALIGNMENT_ATTR __attribute__((__aligned__(16))) #else #define LIBUNWIND_CURSOR_ALIGNMENT_ATTR #endif -/* error codes */ -enum { - UNW_ESUCCESS = 0, /* no error */ - UNW_EUNSPEC = -6540, /* unspecified (general) error */ - UNW_ENOMEM = -6541, /* out of memory */ - UNW_EBADREG = -6542, /* bad register number */ - UNW_EREADONLYREG = -6543, /* attempt to write read-only register */ - UNW_ESTOPUNWIND = -6544, /* stop unwinding */ - UNW_EINVALIDIP = -6545, /* invalid IP */ - UNW_EBADFRAME = -6546, /* bad frame */ - UNW_EINVAL = -6547, /* unsupported operation or bad value */ - UNW_EBADVERSION = -6548, /* unwind info has unsupported version */ - UNW_ENOINFO = -6549 /* no unwind info found */ +/* error codes */ +enum { + UNW_ESUCCESS = 0, /* no error */ + UNW_EUNSPEC = -6540, /* unspecified (general) error */ + UNW_ENOMEM = -6541, /* out of memory */ + UNW_EBADREG = -6542, /* bad register number */ + UNW_EREADONLYREG = -6543, /* attempt to write read-only register */ + UNW_ESTOPUNWIND = -6544, /* stop unwinding */ + UNW_EINVALIDIP = -6545, /* invalid IP */ + UNW_EBADFRAME = -6546, /* bad frame */ + UNW_EINVAL = -6547, /* unsupported operation or bad value */ + UNW_EBADVERSION = -6548, /* unwind info has unsupported version */ + UNW_ENOINFO = -6549 /* no unwind info found */ #if defined(_LIBUNWIND_TARGET_AARCH64) && !defined(_LIBUNWIND_IS_NATIVE_ONLY) , UNW_ECROSSRASIGNING = -6550 /* cross unwind with return address signing */ #endif -}; - -struct unw_context_t { +}; + +struct unw_context_t { uint64_t data[_LIBUNWIND_CONTEXT_SIZE]; -}; -typedef struct unw_context_t unw_context_t; - -struct unw_cursor_t { +}; +typedef struct unw_context_t unw_context_t; + +struct unw_cursor_t { uint64_t data[_LIBUNWIND_CURSOR_SIZE]; } LIBUNWIND_CURSOR_ALIGNMENT_ATTR; -typedef struct unw_cursor_t unw_cursor_t; - -typedef struct unw_addr_space *unw_addr_space_t; - -typedef int unw_regnum_t; +typedef struct unw_cursor_t unw_cursor_t; + +typedef struct unw_addr_space *unw_addr_space_t; + +typedef int unw_regnum_t; typedef uintptr_t unw_word_t; #if defined(__arm__) && !defined(__ARM_DWARF_EH__) -typedef uint64_t unw_fpreg_t; -#else -typedef double unw_fpreg_t; -#endif - -struct unw_proc_info_t { - unw_word_t start_ip; /* start address of function */ - unw_word_t end_ip; /* address after end of function */ - unw_word_t lsda; /* address of language specific data area, */ - /* or zero if not used */ - unw_word_t handler; /* personality routine, or zero if not used */ - unw_word_t gp; /* not used */ - unw_word_t flags; /* not used */ - uint32_t format; /* compact unwind encoding, or zero if none */ +typedef uint64_t unw_fpreg_t; +#else +typedef double unw_fpreg_t; +#endif + +struct unw_proc_info_t { + unw_word_t start_ip; /* start address of function */ + unw_word_t end_ip; /* address after end of function */ + unw_word_t lsda; /* address of language specific data area, */ + /* or zero if not used */ + unw_word_t handler; /* personality routine, or zero if not used */ + unw_word_t gp; /* not used */ + unw_word_t flags; /* not used */ + uint32_t format; /* compact unwind encoding, or zero if none */ uint32_t unwind_info_size; /* size of DWARF unwind info, or zero if none */ unw_word_t unwind_info; /* address of DWARF unwind info, or zero */ - unw_word_t extra; /* mach_header of mach-o image containing func */ -}; -typedef struct unw_proc_info_t unw_proc_info_t; - -#ifdef __cplusplus -extern "C" { -#endif - -extern int unw_getcontext(unw_context_t *) LIBUNWIND_AVAIL; -extern int unw_init_local(unw_cursor_t *, unw_context_t *) LIBUNWIND_AVAIL; -extern int unw_step(unw_cursor_t *) LIBUNWIND_AVAIL; -extern int unw_get_reg(unw_cursor_t *, unw_regnum_t, unw_word_t *) LIBUNWIND_AVAIL; -extern int unw_get_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t *) LIBUNWIND_AVAIL; -extern int unw_set_reg(unw_cursor_t *, unw_regnum_t, unw_word_t) LIBUNWIND_AVAIL; -extern int unw_set_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t) LIBUNWIND_AVAIL; -extern int unw_resume(unw_cursor_t *) LIBUNWIND_AVAIL; - -#ifdef __arm__ -/* Save VFP registers in FSTMX format (instead of FSTMD). */ -extern void unw_save_vfp_as_X(unw_cursor_t *) LIBUNWIND_AVAIL; -#endif - - -extern const char *unw_regname(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL; -extern int unw_get_proc_info(unw_cursor_t *, unw_proc_info_t *) LIBUNWIND_AVAIL; -extern int unw_is_fpreg(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL; -extern int unw_is_signal_frame(unw_cursor_t *) LIBUNWIND_AVAIL; -extern int unw_get_proc_name(unw_cursor_t *, char *, size_t, unw_word_t *) LIBUNWIND_AVAIL; -//extern int unw_get_save_loc(unw_cursor_t*, int, unw_save_loc_t*); - -extern unw_addr_space_t unw_local_addr_space; - -#ifdef __cplusplus -} -#endif - -// architecture independent register numbers -enum { - UNW_REG_IP = -1, // instruction pointer - UNW_REG_SP = -2, // stack pointer -}; - -// 32-bit x86 registers -enum { - UNW_X86_EAX = 0, - UNW_X86_ECX = 1, - UNW_X86_EDX = 2, - UNW_X86_EBX = 3, - UNW_X86_EBP = 4, - UNW_X86_ESP = 5, - UNW_X86_ESI = 6, - UNW_X86_EDI = 7 -}; - -// 64-bit x86_64 registers -enum { - UNW_X86_64_RAX = 0, - UNW_X86_64_RDX = 1, - UNW_X86_64_RCX = 2, - UNW_X86_64_RBX = 3, - UNW_X86_64_RSI = 4, - UNW_X86_64_RDI = 5, - UNW_X86_64_RBP = 6, - UNW_X86_64_RSP = 7, - UNW_X86_64_R8 = 8, - UNW_X86_64_R9 = 9, - UNW_X86_64_R10 = 10, - UNW_X86_64_R11 = 11, - UNW_X86_64_R12 = 12, - UNW_X86_64_R13 = 13, - UNW_X86_64_R14 = 14, + unw_word_t extra; /* mach_header of mach-o image containing func */ +}; +typedef struct unw_proc_info_t unw_proc_info_t; + +#ifdef __cplusplus +extern "C" { +#endif + +extern int unw_getcontext(unw_context_t *) LIBUNWIND_AVAIL; +extern int unw_init_local(unw_cursor_t *, unw_context_t *) LIBUNWIND_AVAIL; +extern int unw_step(unw_cursor_t *) LIBUNWIND_AVAIL; +extern int unw_get_reg(unw_cursor_t *, unw_regnum_t, unw_word_t *) LIBUNWIND_AVAIL; +extern int unw_get_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t *) LIBUNWIND_AVAIL; +extern int unw_set_reg(unw_cursor_t *, unw_regnum_t, unw_word_t) LIBUNWIND_AVAIL; +extern int unw_set_fpreg(unw_cursor_t *, unw_regnum_t, unw_fpreg_t) LIBUNWIND_AVAIL; +extern int unw_resume(unw_cursor_t *) LIBUNWIND_AVAIL; + +#ifdef __arm__ +/* Save VFP registers in FSTMX format (instead of FSTMD). */ +extern void unw_save_vfp_as_X(unw_cursor_t *) LIBUNWIND_AVAIL; +#endif + + +extern const char *unw_regname(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL; +extern int unw_get_proc_info(unw_cursor_t *, unw_proc_info_t *) LIBUNWIND_AVAIL; +extern int unw_is_fpreg(unw_cursor_t *, unw_regnum_t) LIBUNWIND_AVAIL; +extern int unw_is_signal_frame(unw_cursor_t *) LIBUNWIND_AVAIL; +extern int unw_get_proc_name(unw_cursor_t *, char *, size_t, unw_word_t *) LIBUNWIND_AVAIL; +//extern int unw_get_save_loc(unw_cursor_t*, int, unw_save_loc_t*); + +extern unw_addr_space_t unw_local_addr_space; + +#ifdef __cplusplus +} +#endif + +// architecture independent register numbers +enum { + UNW_REG_IP = -1, // instruction pointer + UNW_REG_SP = -2, // stack pointer +}; + +// 32-bit x86 registers +enum { + UNW_X86_EAX = 0, + UNW_X86_ECX = 1, + UNW_X86_EDX = 2, + UNW_X86_EBX = 3, + UNW_X86_EBP = 4, + UNW_X86_ESP = 5, + UNW_X86_ESI = 6, + UNW_X86_EDI = 7 +}; + +// 64-bit x86_64 registers +enum { + UNW_X86_64_RAX = 0, + UNW_X86_64_RDX = 1, + UNW_X86_64_RCX = 2, + UNW_X86_64_RBX = 3, + UNW_X86_64_RSI = 4, + UNW_X86_64_RDI = 5, + UNW_X86_64_RBP = 6, + UNW_X86_64_RSP = 7, + UNW_X86_64_R8 = 8, + UNW_X86_64_R9 = 9, + UNW_X86_64_R10 = 10, + UNW_X86_64_R11 = 11, + UNW_X86_64_R12 = 12, + UNW_X86_64_R13 = 13, + UNW_X86_64_R14 = 14, UNW_X86_64_R15 = 15, UNW_X86_64_RIP = 16, UNW_X86_64_XMM0 = 17, @@ -187,126 +187,126 @@ enum { UNW_X86_64_XMM13 = 30, UNW_X86_64_XMM14 = 31, UNW_X86_64_XMM15 = 32, -}; - - -// 32-bit ppc register numbers -enum { - UNW_PPC_R0 = 0, - UNW_PPC_R1 = 1, - UNW_PPC_R2 = 2, - UNW_PPC_R3 = 3, - UNW_PPC_R4 = 4, - UNW_PPC_R5 = 5, - UNW_PPC_R6 = 6, - UNW_PPC_R7 = 7, - UNW_PPC_R8 = 8, - UNW_PPC_R9 = 9, - UNW_PPC_R10 = 10, - UNW_PPC_R11 = 11, - UNW_PPC_R12 = 12, - UNW_PPC_R13 = 13, - UNW_PPC_R14 = 14, - UNW_PPC_R15 = 15, - UNW_PPC_R16 = 16, - UNW_PPC_R17 = 17, - UNW_PPC_R18 = 18, - UNW_PPC_R19 = 19, - UNW_PPC_R20 = 20, - UNW_PPC_R21 = 21, - UNW_PPC_R22 = 22, - UNW_PPC_R23 = 23, - UNW_PPC_R24 = 24, - UNW_PPC_R25 = 25, - UNW_PPC_R26 = 26, - UNW_PPC_R27 = 27, - UNW_PPC_R28 = 28, - UNW_PPC_R29 = 29, - UNW_PPC_R30 = 30, - UNW_PPC_R31 = 31, - UNW_PPC_F0 = 32, - UNW_PPC_F1 = 33, - UNW_PPC_F2 = 34, - UNW_PPC_F3 = 35, - UNW_PPC_F4 = 36, - UNW_PPC_F5 = 37, - UNW_PPC_F6 = 38, - UNW_PPC_F7 = 39, - UNW_PPC_F8 = 40, - UNW_PPC_F9 = 41, - UNW_PPC_F10 = 42, - UNW_PPC_F11 = 43, - UNW_PPC_F12 = 44, - UNW_PPC_F13 = 45, - UNW_PPC_F14 = 46, - UNW_PPC_F15 = 47, - UNW_PPC_F16 = 48, - UNW_PPC_F17 = 49, - UNW_PPC_F18 = 50, - UNW_PPC_F19 = 51, - UNW_PPC_F20 = 52, - UNW_PPC_F21 = 53, - UNW_PPC_F22 = 54, - UNW_PPC_F23 = 55, - UNW_PPC_F24 = 56, - UNW_PPC_F25 = 57, - UNW_PPC_F26 = 58, - UNW_PPC_F27 = 59, - UNW_PPC_F28 = 60, - UNW_PPC_F29 = 61, - UNW_PPC_F30 = 62, - UNW_PPC_F31 = 63, - UNW_PPC_MQ = 64, - UNW_PPC_LR = 65, - UNW_PPC_CTR = 66, - UNW_PPC_AP = 67, - UNW_PPC_CR0 = 68, - UNW_PPC_CR1 = 69, - UNW_PPC_CR2 = 70, - UNW_PPC_CR3 = 71, - UNW_PPC_CR4 = 72, - UNW_PPC_CR5 = 73, - UNW_PPC_CR6 = 74, - UNW_PPC_CR7 = 75, - UNW_PPC_XER = 76, - UNW_PPC_V0 = 77, - UNW_PPC_V1 = 78, - UNW_PPC_V2 = 79, - UNW_PPC_V3 = 80, - UNW_PPC_V4 = 81, - UNW_PPC_V5 = 82, - UNW_PPC_V6 = 83, - UNW_PPC_V7 = 84, - UNW_PPC_V8 = 85, - UNW_PPC_V9 = 86, - UNW_PPC_V10 = 87, - UNW_PPC_V11 = 88, - UNW_PPC_V12 = 89, - UNW_PPC_V13 = 90, - UNW_PPC_V14 = 91, - UNW_PPC_V15 = 92, - UNW_PPC_V16 = 93, - UNW_PPC_V17 = 94, - UNW_PPC_V18 = 95, - UNW_PPC_V19 = 96, - UNW_PPC_V20 = 97, - UNW_PPC_V21 = 98, - UNW_PPC_V22 = 99, - UNW_PPC_V23 = 100, - UNW_PPC_V24 = 101, - UNW_PPC_V25 = 102, - UNW_PPC_V26 = 103, - UNW_PPC_V27 = 104, - UNW_PPC_V28 = 105, - UNW_PPC_V29 = 106, - UNW_PPC_V30 = 107, - UNW_PPC_V31 = 108, - UNW_PPC_VRSAVE = 109, - UNW_PPC_VSCR = 110, - UNW_PPC_SPE_ACC = 111, - UNW_PPC_SPEFSCR = 112 -}; - +}; + + +// 32-bit ppc register numbers +enum { + UNW_PPC_R0 = 0, + UNW_PPC_R1 = 1, + UNW_PPC_R2 = 2, + UNW_PPC_R3 = 3, + UNW_PPC_R4 = 4, + UNW_PPC_R5 = 5, + UNW_PPC_R6 = 6, + UNW_PPC_R7 = 7, + UNW_PPC_R8 = 8, + UNW_PPC_R9 = 9, + UNW_PPC_R10 = 10, + UNW_PPC_R11 = 11, + UNW_PPC_R12 = 12, + UNW_PPC_R13 = 13, + UNW_PPC_R14 = 14, + UNW_PPC_R15 = 15, + UNW_PPC_R16 = 16, + UNW_PPC_R17 = 17, + UNW_PPC_R18 = 18, + UNW_PPC_R19 = 19, + UNW_PPC_R20 = 20, + UNW_PPC_R21 = 21, + UNW_PPC_R22 = 22, + UNW_PPC_R23 = 23, + UNW_PPC_R24 = 24, + UNW_PPC_R25 = 25, + UNW_PPC_R26 = 26, + UNW_PPC_R27 = 27, + UNW_PPC_R28 = 28, + UNW_PPC_R29 = 29, + UNW_PPC_R30 = 30, + UNW_PPC_R31 = 31, + UNW_PPC_F0 = 32, + UNW_PPC_F1 = 33, + UNW_PPC_F2 = 34, + UNW_PPC_F3 = 35, + UNW_PPC_F4 = 36, + UNW_PPC_F5 = 37, + UNW_PPC_F6 = 38, + UNW_PPC_F7 = 39, + UNW_PPC_F8 = 40, + UNW_PPC_F9 = 41, + UNW_PPC_F10 = 42, + UNW_PPC_F11 = 43, + UNW_PPC_F12 = 44, + UNW_PPC_F13 = 45, + UNW_PPC_F14 = 46, + UNW_PPC_F15 = 47, + UNW_PPC_F16 = 48, + UNW_PPC_F17 = 49, + UNW_PPC_F18 = 50, + UNW_PPC_F19 = 51, + UNW_PPC_F20 = 52, + UNW_PPC_F21 = 53, + UNW_PPC_F22 = 54, + UNW_PPC_F23 = 55, + UNW_PPC_F24 = 56, + UNW_PPC_F25 = 57, + UNW_PPC_F26 = 58, + UNW_PPC_F27 = 59, + UNW_PPC_F28 = 60, + UNW_PPC_F29 = 61, + UNW_PPC_F30 = 62, + UNW_PPC_F31 = 63, + UNW_PPC_MQ = 64, + UNW_PPC_LR = 65, + UNW_PPC_CTR = 66, + UNW_PPC_AP = 67, + UNW_PPC_CR0 = 68, + UNW_PPC_CR1 = 69, + UNW_PPC_CR2 = 70, + UNW_PPC_CR3 = 71, + UNW_PPC_CR4 = 72, + UNW_PPC_CR5 = 73, + UNW_PPC_CR6 = 74, + UNW_PPC_CR7 = 75, + UNW_PPC_XER = 76, + UNW_PPC_V0 = 77, + UNW_PPC_V1 = 78, + UNW_PPC_V2 = 79, + UNW_PPC_V3 = 80, + UNW_PPC_V4 = 81, + UNW_PPC_V5 = 82, + UNW_PPC_V6 = 83, + UNW_PPC_V7 = 84, + UNW_PPC_V8 = 85, + UNW_PPC_V9 = 86, + UNW_PPC_V10 = 87, + UNW_PPC_V11 = 88, + UNW_PPC_V12 = 89, + UNW_PPC_V13 = 90, + UNW_PPC_V14 = 91, + UNW_PPC_V15 = 92, + UNW_PPC_V16 = 93, + UNW_PPC_V17 = 94, + UNW_PPC_V18 = 95, + UNW_PPC_V19 = 96, + UNW_PPC_V20 = 97, + UNW_PPC_V21 = 98, + UNW_PPC_V22 = 99, + UNW_PPC_V23 = 100, + UNW_PPC_V24 = 101, + UNW_PPC_V25 = 102, + UNW_PPC_V26 = 103, + UNW_PPC_V27 = 104, + UNW_PPC_V28 = 105, + UNW_PPC_V29 = 106, + UNW_PPC_V30 = 107, + UNW_PPC_V31 = 108, + UNW_PPC_VRSAVE = 109, + UNW_PPC_VSCR = 110, + UNW_PPC_SPE_ACC = 111, + UNW_PPC_SPEFSCR = 112 +}; + // 64-bit ppc register numbers enum { UNW_PPC64_R0 = 0, @@ -491,8 +491,8 @@ enum { UNW_PPC64_VS63 = UNW_PPC64_V31 }; -// 64-bit ARM64 registers -enum { +// 64-bit ARM64 registers +enum { UNW_AARCH64_X0 = 0, UNW_AARCH64_X1 = 1, UNW_AARCH64_X2 = 2, @@ -530,7 +530,7 @@ enum { UNW_AARCH64_SP = 31, UNW_AARCH64_PC = 32, - // reserved block + // reserved block UNW_AARCH64_RA_SIGN_STATE = 34, // FP/vector registers @@ -637,176 +637,176 @@ enum { UNW_ARM64_D29 = UNW_AARCH64_V29, UNW_ARM64_D30 = UNW_AARCH64_V30, UNW_ARM64_D31 = UNW_AARCH64_V31, -}; - -// 32-bit ARM registers. Numbers match DWARF for ARM spec #3.1 Table 1. -// Naming scheme uses recommendations given in Note 4 for VFP-v2 and VFP-v3. -// In this scheme, even though the 64-bit floating point registers D0-D31 -// overlap physically with the 32-bit floating pointer registers S0-S31, -// they are given a non-overlapping range of register numbers. -// -// Commented out ranges are not preserved during unwinding. -enum { - UNW_ARM_R0 = 0, - UNW_ARM_R1 = 1, - UNW_ARM_R2 = 2, - UNW_ARM_R3 = 3, - UNW_ARM_R4 = 4, - UNW_ARM_R5 = 5, - UNW_ARM_R6 = 6, - UNW_ARM_R7 = 7, - UNW_ARM_R8 = 8, - UNW_ARM_R9 = 9, - UNW_ARM_R10 = 10, - UNW_ARM_R11 = 11, - UNW_ARM_R12 = 12, - UNW_ARM_SP = 13, // Logical alias for UNW_REG_SP - UNW_ARM_R13 = 13, - UNW_ARM_LR = 14, - UNW_ARM_R14 = 14, - UNW_ARM_IP = 15, // Logical alias for UNW_REG_IP - UNW_ARM_R15 = 15, - // 16-63 -- OBSOLETE. Used in VFP1 to represent both S0-S31 and D0-D31. - UNW_ARM_S0 = 64, - UNW_ARM_S1 = 65, - UNW_ARM_S2 = 66, - UNW_ARM_S3 = 67, - UNW_ARM_S4 = 68, - UNW_ARM_S5 = 69, - UNW_ARM_S6 = 70, - UNW_ARM_S7 = 71, - UNW_ARM_S8 = 72, - UNW_ARM_S9 = 73, - UNW_ARM_S10 = 74, - UNW_ARM_S11 = 75, - UNW_ARM_S12 = 76, - UNW_ARM_S13 = 77, - UNW_ARM_S14 = 78, - UNW_ARM_S15 = 79, - UNW_ARM_S16 = 80, - UNW_ARM_S17 = 81, - UNW_ARM_S18 = 82, - UNW_ARM_S19 = 83, - UNW_ARM_S20 = 84, - UNW_ARM_S21 = 85, - UNW_ARM_S22 = 86, - UNW_ARM_S23 = 87, - UNW_ARM_S24 = 88, - UNW_ARM_S25 = 89, - UNW_ARM_S26 = 90, - UNW_ARM_S27 = 91, - UNW_ARM_S28 = 92, - UNW_ARM_S29 = 93, - UNW_ARM_S30 = 94, - UNW_ARM_S31 = 95, - // 96-103 -- OBSOLETE. F0-F7. Used by the FPA system. Superseded by VFP. - // 104-111 -- wCGR0-wCGR7, ACC0-ACC7 (Intel wireless MMX) - UNW_ARM_WR0 = 112, - UNW_ARM_WR1 = 113, - UNW_ARM_WR2 = 114, - UNW_ARM_WR3 = 115, - UNW_ARM_WR4 = 116, - UNW_ARM_WR5 = 117, - UNW_ARM_WR6 = 118, - UNW_ARM_WR7 = 119, - UNW_ARM_WR8 = 120, - UNW_ARM_WR9 = 121, - UNW_ARM_WR10 = 122, - UNW_ARM_WR11 = 123, - UNW_ARM_WR12 = 124, - UNW_ARM_WR13 = 125, - UNW_ARM_WR14 = 126, - UNW_ARM_WR15 = 127, - // 128-133 -- SPSR, SPSR_{FIQ|IRQ|ABT|UND|SVC} +}; + +// 32-bit ARM registers. Numbers match DWARF for ARM spec #3.1 Table 1. +// Naming scheme uses recommendations given in Note 4 for VFP-v2 and VFP-v3. +// In this scheme, even though the 64-bit floating point registers D0-D31 +// overlap physically with the 32-bit floating pointer registers S0-S31, +// they are given a non-overlapping range of register numbers. +// +// Commented out ranges are not preserved during unwinding. +enum { + UNW_ARM_R0 = 0, + UNW_ARM_R1 = 1, + UNW_ARM_R2 = 2, + UNW_ARM_R3 = 3, + UNW_ARM_R4 = 4, + UNW_ARM_R5 = 5, + UNW_ARM_R6 = 6, + UNW_ARM_R7 = 7, + UNW_ARM_R8 = 8, + UNW_ARM_R9 = 9, + UNW_ARM_R10 = 10, + UNW_ARM_R11 = 11, + UNW_ARM_R12 = 12, + UNW_ARM_SP = 13, // Logical alias for UNW_REG_SP + UNW_ARM_R13 = 13, + UNW_ARM_LR = 14, + UNW_ARM_R14 = 14, + UNW_ARM_IP = 15, // Logical alias for UNW_REG_IP + UNW_ARM_R15 = 15, + // 16-63 -- OBSOLETE. Used in VFP1 to represent both S0-S31 and D0-D31. + UNW_ARM_S0 = 64, + UNW_ARM_S1 = 65, + UNW_ARM_S2 = 66, + UNW_ARM_S3 = 67, + UNW_ARM_S4 = 68, + UNW_ARM_S5 = 69, + UNW_ARM_S6 = 70, + UNW_ARM_S7 = 71, + UNW_ARM_S8 = 72, + UNW_ARM_S9 = 73, + UNW_ARM_S10 = 74, + UNW_ARM_S11 = 75, + UNW_ARM_S12 = 76, + UNW_ARM_S13 = 77, + UNW_ARM_S14 = 78, + UNW_ARM_S15 = 79, + UNW_ARM_S16 = 80, + UNW_ARM_S17 = 81, + UNW_ARM_S18 = 82, + UNW_ARM_S19 = 83, + UNW_ARM_S20 = 84, + UNW_ARM_S21 = 85, + UNW_ARM_S22 = 86, + UNW_ARM_S23 = 87, + UNW_ARM_S24 = 88, + UNW_ARM_S25 = 89, + UNW_ARM_S26 = 90, + UNW_ARM_S27 = 91, + UNW_ARM_S28 = 92, + UNW_ARM_S29 = 93, + UNW_ARM_S30 = 94, + UNW_ARM_S31 = 95, + // 96-103 -- OBSOLETE. F0-F7. Used by the FPA system. Superseded by VFP. + // 104-111 -- wCGR0-wCGR7, ACC0-ACC7 (Intel wireless MMX) + UNW_ARM_WR0 = 112, + UNW_ARM_WR1 = 113, + UNW_ARM_WR2 = 114, + UNW_ARM_WR3 = 115, + UNW_ARM_WR4 = 116, + UNW_ARM_WR5 = 117, + UNW_ARM_WR6 = 118, + UNW_ARM_WR7 = 119, + UNW_ARM_WR8 = 120, + UNW_ARM_WR9 = 121, + UNW_ARM_WR10 = 122, + UNW_ARM_WR11 = 123, + UNW_ARM_WR12 = 124, + UNW_ARM_WR13 = 125, + UNW_ARM_WR14 = 126, + UNW_ARM_WR15 = 127, + // 128-133 -- SPSR, SPSR_{FIQ|IRQ|ABT|UND|SVC} // 134-142 -- Reserved UNW_ARM_RA_AUTH_CODE = 143, - // 144-150 -- R8_USR-R14_USR - // 151-157 -- R8_FIQ-R14_FIQ - // 158-159 -- R13_IRQ-R14_IRQ - // 160-161 -- R13_ABT-R14_ABT - // 162-163 -- R13_UND-R14_UND - // 164-165 -- R13_SVC-R14_SVC - // 166-191 -- Reserved - UNW_ARM_WC0 = 192, - UNW_ARM_WC1 = 193, - UNW_ARM_WC2 = 194, - UNW_ARM_WC3 = 195, - // 196-199 -- wC4-wC7 (Intel wireless MMX control) - // 200-255 -- Reserved - UNW_ARM_D0 = 256, - UNW_ARM_D1 = 257, - UNW_ARM_D2 = 258, - UNW_ARM_D3 = 259, - UNW_ARM_D4 = 260, - UNW_ARM_D5 = 261, - UNW_ARM_D6 = 262, - UNW_ARM_D7 = 263, - UNW_ARM_D8 = 264, - UNW_ARM_D9 = 265, - UNW_ARM_D10 = 266, - UNW_ARM_D11 = 267, - UNW_ARM_D12 = 268, - UNW_ARM_D13 = 269, - UNW_ARM_D14 = 270, - UNW_ARM_D15 = 271, - UNW_ARM_D16 = 272, - UNW_ARM_D17 = 273, - UNW_ARM_D18 = 274, - UNW_ARM_D19 = 275, - UNW_ARM_D20 = 276, - UNW_ARM_D21 = 277, - UNW_ARM_D22 = 278, - UNW_ARM_D23 = 279, - UNW_ARM_D24 = 280, - UNW_ARM_D25 = 281, - UNW_ARM_D26 = 282, - UNW_ARM_D27 = 283, - UNW_ARM_D28 = 284, - UNW_ARM_D29 = 285, - UNW_ARM_D30 = 286, - UNW_ARM_D31 = 287, - // 288-319 -- Reserved for VFP/Neon - // 320-8191 -- Reserved - // 8192-16383 -- Unspecified vendor co-processor register. -}; - -// OpenRISC1000 register numbers -enum { - UNW_OR1K_R0 = 0, - UNW_OR1K_R1 = 1, - UNW_OR1K_R2 = 2, - UNW_OR1K_R3 = 3, - UNW_OR1K_R4 = 4, - UNW_OR1K_R5 = 5, - UNW_OR1K_R6 = 6, - UNW_OR1K_R7 = 7, - UNW_OR1K_R8 = 8, - UNW_OR1K_R9 = 9, - UNW_OR1K_R10 = 10, - UNW_OR1K_R11 = 11, - UNW_OR1K_R12 = 12, - UNW_OR1K_R13 = 13, - UNW_OR1K_R14 = 14, - UNW_OR1K_R15 = 15, - UNW_OR1K_R16 = 16, - UNW_OR1K_R17 = 17, - UNW_OR1K_R18 = 18, - UNW_OR1K_R19 = 19, - UNW_OR1K_R20 = 20, - UNW_OR1K_R21 = 21, - UNW_OR1K_R22 = 22, - UNW_OR1K_R23 = 23, - UNW_OR1K_R24 = 24, - UNW_OR1K_R25 = 25, - UNW_OR1K_R26 = 26, - UNW_OR1K_R27 = 27, - UNW_OR1K_R28 = 28, - UNW_OR1K_R29 = 29, - UNW_OR1K_R30 = 30, - UNW_OR1K_R31 = 31, + // 144-150 -- R8_USR-R14_USR + // 151-157 -- R8_FIQ-R14_FIQ + // 158-159 -- R13_IRQ-R14_IRQ + // 160-161 -- R13_ABT-R14_ABT + // 162-163 -- R13_UND-R14_UND + // 164-165 -- R13_SVC-R14_SVC + // 166-191 -- Reserved + UNW_ARM_WC0 = 192, + UNW_ARM_WC1 = 193, + UNW_ARM_WC2 = 194, + UNW_ARM_WC3 = 195, + // 196-199 -- wC4-wC7 (Intel wireless MMX control) + // 200-255 -- Reserved + UNW_ARM_D0 = 256, + UNW_ARM_D1 = 257, + UNW_ARM_D2 = 258, + UNW_ARM_D3 = 259, + UNW_ARM_D4 = 260, + UNW_ARM_D5 = 261, + UNW_ARM_D6 = 262, + UNW_ARM_D7 = 263, + UNW_ARM_D8 = 264, + UNW_ARM_D9 = 265, + UNW_ARM_D10 = 266, + UNW_ARM_D11 = 267, + UNW_ARM_D12 = 268, + UNW_ARM_D13 = 269, + UNW_ARM_D14 = 270, + UNW_ARM_D15 = 271, + UNW_ARM_D16 = 272, + UNW_ARM_D17 = 273, + UNW_ARM_D18 = 274, + UNW_ARM_D19 = 275, + UNW_ARM_D20 = 276, + UNW_ARM_D21 = 277, + UNW_ARM_D22 = 278, + UNW_ARM_D23 = 279, + UNW_ARM_D24 = 280, + UNW_ARM_D25 = 281, + UNW_ARM_D26 = 282, + UNW_ARM_D27 = 283, + UNW_ARM_D28 = 284, + UNW_ARM_D29 = 285, + UNW_ARM_D30 = 286, + UNW_ARM_D31 = 287, + // 288-319 -- Reserved for VFP/Neon + // 320-8191 -- Reserved + // 8192-16383 -- Unspecified vendor co-processor register. +}; + +// OpenRISC1000 register numbers +enum { + UNW_OR1K_R0 = 0, + UNW_OR1K_R1 = 1, + UNW_OR1K_R2 = 2, + UNW_OR1K_R3 = 3, + UNW_OR1K_R4 = 4, + UNW_OR1K_R5 = 5, + UNW_OR1K_R6 = 6, + UNW_OR1K_R7 = 7, + UNW_OR1K_R8 = 8, + UNW_OR1K_R9 = 9, + UNW_OR1K_R10 = 10, + UNW_OR1K_R11 = 11, + UNW_OR1K_R12 = 12, + UNW_OR1K_R13 = 13, + UNW_OR1K_R14 = 14, + UNW_OR1K_R15 = 15, + UNW_OR1K_R16 = 16, + UNW_OR1K_R17 = 17, + UNW_OR1K_R18 = 18, + UNW_OR1K_R19 = 19, + UNW_OR1K_R20 = 20, + UNW_OR1K_R21 = 21, + UNW_OR1K_R22 = 22, + UNW_OR1K_R23 = 23, + UNW_OR1K_R24 = 24, + UNW_OR1K_R25 = 25, + UNW_OR1K_R26 = 26, + UNW_OR1K_R27 = 27, + UNW_OR1K_R28 = 28, + UNW_OR1K_R29 = 29, + UNW_OR1K_R30 = 30, + UNW_OR1K_R31 = 31, UNW_OR1K_EPCR = 32, -}; - +}; + // MIPS registers enum { UNW_MIPS_R0 = 0, @@ -1174,4 +1174,4 @@ enum { UNW_VE_VL = 145, }; -#endif +#endif diff --git a/contrib/libs/libunwind/include/mach-o/compact_unwind_encoding.h b/contrib/libs/libunwind/include/mach-o/compact_unwind_encoding.h index 45d873f75c..68d562eec4 100644 --- a/contrib/libs/libunwind/include/mach-o/compact_unwind_encoding.h +++ b/contrib/libs/libunwind/include/mach-o/compact_unwind_encoding.h @@ -1,477 +1,477 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// +// +// // Darwin's alternative to DWARF based unwind encodings. -// -//===----------------------------------------------------------------------===// - - -#ifndef __COMPACT_UNWIND_ENCODING__ -#define __COMPACT_UNWIND_ENCODING__ - -#include <stdint.h> - -// +// +//===----------------------------------------------------------------------===// + + +#ifndef __COMPACT_UNWIND_ENCODING__ +#define __COMPACT_UNWIND_ENCODING__ + +#include <stdint.h> + +// // Compilers can emit standard DWARF FDEs in the __TEXT,__eh_frame section -// of object files. Or compilers can emit compact unwind information in -// the __LD,__compact_unwind section. -// -// When the linker creates a final linked image, it will create a -// __TEXT,__unwind_info section. This section is a small and fast way for the -// runtime to access unwind info for any given function. If the compiler -// emitted compact unwind info for the function, that compact unwind info will -// be encoded in the __TEXT,__unwind_info section. If the compiler emitted +// of object files. Or compilers can emit compact unwind information in +// the __LD,__compact_unwind section. +// +// When the linker creates a final linked image, it will create a +// __TEXT,__unwind_info section. This section is a small and fast way for the +// runtime to access unwind info for any given function. If the compiler +// emitted compact unwind info for the function, that compact unwind info will +// be encoded in the __TEXT,__unwind_info section. If the compiler emitted // DWARF unwind info, the __TEXT,__unwind_info section will contain the offset -// of the FDE in the __TEXT,__eh_frame section in the final linked image. -// +// of the FDE in the __TEXT,__eh_frame section in the final linked image. +// // Note: Previously, the linker would transform some DWARF unwind infos into -// compact unwind info. But that is fragile and no longer done. - - -// -// The compact unwind endoding is a 32-bit value which encoded in an -// architecture specific way, which registers to restore from where, and how -// to unwind out of the function. -// -typedef uint32_t compact_unwind_encoding_t; - - -// architecture independent bits -enum { - UNWIND_IS_NOT_FUNCTION_START = 0x80000000, - UNWIND_HAS_LSDA = 0x40000000, - UNWIND_PERSONALITY_MASK = 0x30000000, -}; - - - - -// -// x86 -// -// 1-bit: start -// 1-bit: has lsda -// 2-bit: personality index -// +// compact unwind info. But that is fragile and no longer done. + + +// +// The compact unwind endoding is a 32-bit value which encoded in an +// architecture specific way, which registers to restore from where, and how +// to unwind out of the function. +// +typedef uint32_t compact_unwind_encoding_t; + + +// architecture independent bits +enum { + UNWIND_IS_NOT_FUNCTION_START = 0x80000000, + UNWIND_HAS_LSDA = 0x40000000, + UNWIND_PERSONALITY_MASK = 0x30000000, +}; + + + + +// +// x86 +// +// 1-bit: start +// 1-bit: has lsda +// 2-bit: personality index +// // 4-bits: 0=old, 1=ebp based, 2=stack-imm, 3=stack-ind, 4=DWARF -// ebp based: -// 15-bits (5*3-bits per reg) register permutation -// 8-bits for stack offset -// frameless: -// 8-bits stack size -// 3-bits stack adjust -// 3-bits register count -// 10-bits register permutation -// -enum { - UNWIND_X86_MODE_MASK = 0x0F000000, - UNWIND_X86_MODE_EBP_FRAME = 0x01000000, - UNWIND_X86_MODE_STACK_IMMD = 0x02000000, - UNWIND_X86_MODE_STACK_IND = 0x03000000, - UNWIND_X86_MODE_DWARF = 0x04000000, - - UNWIND_X86_EBP_FRAME_REGISTERS = 0x00007FFF, - UNWIND_X86_EBP_FRAME_OFFSET = 0x00FF0000, - - UNWIND_X86_FRAMELESS_STACK_SIZE = 0x00FF0000, - UNWIND_X86_FRAMELESS_STACK_ADJUST = 0x0000E000, - UNWIND_X86_FRAMELESS_STACK_REG_COUNT = 0x00001C00, - UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF, - - UNWIND_X86_DWARF_SECTION_OFFSET = 0x00FFFFFF, -}; - -enum { - UNWIND_X86_REG_NONE = 0, - UNWIND_X86_REG_EBX = 1, - UNWIND_X86_REG_ECX = 2, - UNWIND_X86_REG_EDX = 3, - UNWIND_X86_REG_EDI = 4, - UNWIND_X86_REG_ESI = 5, - UNWIND_X86_REG_EBP = 6, -}; - -// -// For x86 there are four modes for the compact unwind encoding: -// UNWIND_X86_MODE_EBP_FRAME: -// EBP based frame where EBP is push on stack immediately after return address, -// then ESP is moved to EBP. Thus, to unwind ESP is restored with the current -// EPB value, then EBP is restored by popping off the stack, and the return -// is done by popping the stack once more into the pc. -// All non-volatile registers that need to be restored must have been saved -// in a small range in the stack that starts EBP-4 to EBP-1020. The offset/4 -// is encoded in the UNWIND_X86_EBP_FRAME_OFFSET bits. The registers saved -// are encoded in the UNWIND_X86_EBP_FRAME_REGISTERS bits as five 3-bit entries. -// Each entry contains which register to restore. -// UNWIND_X86_MODE_STACK_IMMD: -// A "frameless" (EBP not used as frame pointer) function with a small -// constant stack size. To return, a constant (encoded in the compact -// unwind encoding) is added to the ESP. Then the return is done by -// popping the stack into the pc. -// All non-volatile registers that need to be restored must have been saved -// on the stack immediately after the return address. The stack_size/4 is -// encoded in the UNWIND_X86_FRAMELESS_STACK_SIZE (max stack size is 1024). -// The number of registers saved is encoded in UNWIND_X86_FRAMELESS_STACK_REG_COUNT. -// UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION constains which registers were -// saved and their order. -// UNWIND_X86_MODE_STACK_IND: -// A "frameless" (EBP not used as frame pointer) function large constant -// stack size. This case is like the previous, except the stack size is too -// large to encode in the compact unwind encoding. Instead it requires that -// the function contains "subl $nnnnnnnn,ESP" in its prolog. The compact -// encoding contains the offset to the nnnnnnnn value in the function in -// UNWIND_X86_FRAMELESS_STACK_SIZE. -// UNWIND_X86_MODE_DWARF: -// No compact unwind encoding is available. Instead the low 24-bits of the +// ebp based: +// 15-bits (5*3-bits per reg) register permutation +// 8-bits for stack offset +// frameless: +// 8-bits stack size +// 3-bits stack adjust +// 3-bits register count +// 10-bits register permutation +// +enum { + UNWIND_X86_MODE_MASK = 0x0F000000, + UNWIND_X86_MODE_EBP_FRAME = 0x01000000, + UNWIND_X86_MODE_STACK_IMMD = 0x02000000, + UNWIND_X86_MODE_STACK_IND = 0x03000000, + UNWIND_X86_MODE_DWARF = 0x04000000, + + UNWIND_X86_EBP_FRAME_REGISTERS = 0x00007FFF, + UNWIND_X86_EBP_FRAME_OFFSET = 0x00FF0000, + + UNWIND_X86_FRAMELESS_STACK_SIZE = 0x00FF0000, + UNWIND_X86_FRAMELESS_STACK_ADJUST = 0x0000E000, + UNWIND_X86_FRAMELESS_STACK_REG_COUNT = 0x00001C00, + UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF, + + UNWIND_X86_DWARF_SECTION_OFFSET = 0x00FFFFFF, +}; + +enum { + UNWIND_X86_REG_NONE = 0, + UNWIND_X86_REG_EBX = 1, + UNWIND_X86_REG_ECX = 2, + UNWIND_X86_REG_EDX = 3, + UNWIND_X86_REG_EDI = 4, + UNWIND_X86_REG_ESI = 5, + UNWIND_X86_REG_EBP = 6, +}; + +// +// For x86 there are four modes for the compact unwind encoding: +// UNWIND_X86_MODE_EBP_FRAME: +// EBP based frame where EBP is push on stack immediately after return address, +// then ESP is moved to EBP. Thus, to unwind ESP is restored with the current +// EPB value, then EBP is restored by popping off the stack, and the return +// is done by popping the stack once more into the pc. +// All non-volatile registers that need to be restored must have been saved +// in a small range in the stack that starts EBP-4 to EBP-1020. The offset/4 +// is encoded in the UNWIND_X86_EBP_FRAME_OFFSET bits. The registers saved +// are encoded in the UNWIND_X86_EBP_FRAME_REGISTERS bits as five 3-bit entries. +// Each entry contains which register to restore. +// UNWIND_X86_MODE_STACK_IMMD: +// A "frameless" (EBP not used as frame pointer) function with a small +// constant stack size. To return, a constant (encoded in the compact +// unwind encoding) is added to the ESP. Then the return is done by +// popping the stack into the pc. +// All non-volatile registers that need to be restored must have been saved +// on the stack immediately after the return address. The stack_size/4 is +// encoded in the UNWIND_X86_FRAMELESS_STACK_SIZE (max stack size is 1024). +// The number of registers saved is encoded in UNWIND_X86_FRAMELESS_STACK_REG_COUNT. +// UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION constains which registers were +// saved and their order. +// UNWIND_X86_MODE_STACK_IND: +// A "frameless" (EBP not used as frame pointer) function large constant +// stack size. This case is like the previous, except the stack size is too +// large to encode in the compact unwind encoding. Instead it requires that +// the function contains "subl $nnnnnnnn,ESP" in its prolog. The compact +// encoding contains the offset to the nnnnnnnn value in the function in +// UNWIND_X86_FRAMELESS_STACK_SIZE. +// UNWIND_X86_MODE_DWARF: +// No compact unwind encoding is available. Instead the low 24-bits of the // compact encoding is the offset of the DWARF FDE in the __eh_frame section. -// This mode is never used in object files. It is only generated by the +// This mode is never used in object files. It is only generated by the // linker in final linked images which have only DWARF unwind info for a -// function. -// -// The permutation encoding is a Lehmer code sequence encoded into a -// single variable-base number so we can encode the ordering of up to -// six registers in a 10-bit space. -// -// The following is the algorithm used to create the permutation encoding used -// with frameless stacks. It is passed the number of registers to be saved and -// an array of the register numbers saved. -// -//uint32_t permute_encode(uint32_t registerCount, const uint32_t registers[6]) -//{ -// uint32_t renumregs[6]; -// for (int i=6-registerCount; i < 6; ++i) { -// int countless = 0; -// for (int j=6-registerCount; j < i; ++j) { -// if ( registers[j] < registers[i] ) -// ++countless; -// } -// renumregs[i] = registers[i] - countless -1; -// } -// uint32_t permutationEncoding = 0; -// switch ( registerCount ) { -// case 6: -// permutationEncoding |= (120*renumregs[0] + 24*renumregs[1] -// + 6*renumregs[2] + 2*renumregs[3] -// + renumregs[4]); -// break; -// case 5: -// permutationEncoding |= (120*renumregs[1] + 24*renumregs[2] -// + 6*renumregs[3] + 2*renumregs[4] -// + renumregs[5]); -// break; -// case 4: -// permutationEncoding |= (60*renumregs[2] + 12*renumregs[3] -// + 3*renumregs[4] + renumregs[5]); -// break; -// case 3: -// permutationEncoding |= (20*renumregs[3] + 4*renumregs[4] -// + renumregs[5]); -// break; -// case 2: -// permutationEncoding |= (5*renumregs[4] + renumregs[5]); -// break; -// case 1: -// permutationEncoding |= (renumregs[5]); -// break; -// } -// return permutationEncoding; -//} -// - - - - -// -// x86_64 -// -// 1-bit: start -// 1-bit: has lsda -// 2-bit: personality index -// +// function. +// +// The permutation encoding is a Lehmer code sequence encoded into a +// single variable-base number so we can encode the ordering of up to +// six registers in a 10-bit space. +// +// The following is the algorithm used to create the permutation encoding used +// with frameless stacks. It is passed the number of registers to be saved and +// an array of the register numbers saved. +// +//uint32_t permute_encode(uint32_t registerCount, const uint32_t registers[6]) +//{ +// uint32_t renumregs[6]; +// for (int i=6-registerCount; i < 6; ++i) { +// int countless = 0; +// for (int j=6-registerCount; j < i; ++j) { +// if ( registers[j] < registers[i] ) +// ++countless; +// } +// renumregs[i] = registers[i] - countless -1; +// } +// uint32_t permutationEncoding = 0; +// switch ( registerCount ) { +// case 6: +// permutationEncoding |= (120*renumregs[0] + 24*renumregs[1] +// + 6*renumregs[2] + 2*renumregs[3] +// + renumregs[4]); +// break; +// case 5: +// permutationEncoding |= (120*renumregs[1] + 24*renumregs[2] +// + 6*renumregs[3] + 2*renumregs[4] +// + renumregs[5]); +// break; +// case 4: +// permutationEncoding |= (60*renumregs[2] + 12*renumregs[3] +// + 3*renumregs[4] + renumregs[5]); +// break; +// case 3: +// permutationEncoding |= (20*renumregs[3] + 4*renumregs[4] +// + renumregs[5]); +// break; +// case 2: +// permutationEncoding |= (5*renumregs[4] + renumregs[5]); +// break; +// case 1: +// permutationEncoding |= (renumregs[5]); +// break; +// } +// return permutationEncoding; +//} +// + + + + +// +// x86_64 +// +// 1-bit: start +// 1-bit: has lsda +// 2-bit: personality index +// // 4-bits: 0=old, 1=rbp based, 2=stack-imm, 3=stack-ind, 4=DWARF -// rbp based: -// 15-bits (5*3-bits per reg) register permutation -// 8-bits for stack offset -// frameless: -// 8-bits stack size -// 3-bits stack adjust -// 3-bits register count -// 10-bits register permutation -// -enum { - UNWIND_X86_64_MODE_MASK = 0x0F000000, - UNWIND_X86_64_MODE_RBP_FRAME = 0x01000000, - UNWIND_X86_64_MODE_STACK_IMMD = 0x02000000, - UNWIND_X86_64_MODE_STACK_IND = 0x03000000, - UNWIND_X86_64_MODE_DWARF = 0x04000000, - - UNWIND_X86_64_RBP_FRAME_REGISTERS = 0x00007FFF, - UNWIND_X86_64_RBP_FRAME_OFFSET = 0x00FF0000, - - UNWIND_X86_64_FRAMELESS_STACK_SIZE = 0x00FF0000, - UNWIND_X86_64_FRAMELESS_STACK_ADJUST = 0x0000E000, - UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT = 0x00001C00, - UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF, - - UNWIND_X86_64_DWARF_SECTION_OFFSET = 0x00FFFFFF, -}; - -enum { - UNWIND_X86_64_REG_NONE = 0, - UNWIND_X86_64_REG_RBX = 1, - UNWIND_X86_64_REG_R12 = 2, - UNWIND_X86_64_REG_R13 = 3, - UNWIND_X86_64_REG_R14 = 4, - UNWIND_X86_64_REG_R15 = 5, - UNWIND_X86_64_REG_RBP = 6, -}; -// -// For x86_64 there are four modes for the compact unwind encoding: -// UNWIND_X86_64_MODE_RBP_FRAME: -// RBP based frame where RBP is push on stack immediately after return address, -// then RSP is moved to RBP. Thus, to unwind RSP is restored with the current -// EPB value, then RBP is restored by popping off the stack, and the return -// is done by popping the stack once more into the pc. -// All non-volatile registers that need to be restored must have been saved -// in a small range in the stack that starts RBP-8 to RBP-2040. The offset/8 -// is encoded in the UNWIND_X86_64_RBP_FRAME_OFFSET bits. The registers saved -// are encoded in the UNWIND_X86_64_RBP_FRAME_REGISTERS bits as five 3-bit entries. -// Each entry contains which register to restore. -// UNWIND_X86_64_MODE_STACK_IMMD: -// A "frameless" (RBP not used as frame pointer) function with a small -// constant stack size. To return, a constant (encoded in the compact -// unwind encoding) is added to the RSP. Then the return is done by -// popping the stack into the pc. -// All non-volatile registers that need to be restored must have been saved -// on the stack immediately after the return address. The stack_size/8 is -// encoded in the UNWIND_X86_64_FRAMELESS_STACK_SIZE (max stack size is 2048). -// The number of registers saved is encoded in UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT. -// UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION constains which registers were -// saved and their order. -// UNWIND_X86_64_MODE_STACK_IND: -// A "frameless" (RBP not used as frame pointer) function large constant -// stack size. This case is like the previous, except the stack size is too -// large to encode in the compact unwind encoding. Instead it requires that -// the function contains "subq $nnnnnnnn,RSP" in its prolog. The compact -// encoding contains the offset to the nnnnnnnn value in the function in -// UNWIND_X86_64_FRAMELESS_STACK_SIZE. -// UNWIND_X86_64_MODE_DWARF: -// No compact unwind encoding is available. Instead the low 24-bits of the +// rbp based: +// 15-bits (5*3-bits per reg) register permutation +// 8-bits for stack offset +// frameless: +// 8-bits stack size +// 3-bits stack adjust +// 3-bits register count +// 10-bits register permutation +// +enum { + UNWIND_X86_64_MODE_MASK = 0x0F000000, + UNWIND_X86_64_MODE_RBP_FRAME = 0x01000000, + UNWIND_X86_64_MODE_STACK_IMMD = 0x02000000, + UNWIND_X86_64_MODE_STACK_IND = 0x03000000, + UNWIND_X86_64_MODE_DWARF = 0x04000000, + + UNWIND_X86_64_RBP_FRAME_REGISTERS = 0x00007FFF, + UNWIND_X86_64_RBP_FRAME_OFFSET = 0x00FF0000, + + UNWIND_X86_64_FRAMELESS_STACK_SIZE = 0x00FF0000, + UNWIND_X86_64_FRAMELESS_STACK_ADJUST = 0x0000E000, + UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT = 0x00001C00, + UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION = 0x000003FF, + + UNWIND_X86_64_DWARF_SECTION_OFFSET = 0x00FFFFFF, +}; + +enum { + UNWIND_X86_64_REG_NONE = 0, + UNWIND_X86_64_REG_RBX = 1, + UNWIND_X86_64_REG_R12 = 2, + UNWIND_X86_64_REG_R13 = 3, + UNWIND_X86_64_REG_R14 = 4, + UNWIND_X86_64_REG_R15 = 5, + UNWIND_X86_64_REG_RBP = 6, +}; +// +// For x86_64 there are four modes for the compact unwind encoding: +// UNWIND_X86_64_MODE_RBP_FRAME: +// RBP based frame where RBP is push on stack immediately after return address, +// then RSP is moved to RBP. Thus, to unwind RSP is restored with the current +// EPB value, then RBP is restored by popping off the stack, and the return +// is done by popping the stack once more into the pc. +// All non-volatile registers that need to be restored must have been saved +// in a small range in the stack that starts RBP-8 to RBP-2040. The offset/8 +// is encoded in the UNWIND_X86_64_RBP_FRAME_OFFSET bits. The registers saved +// are encoded in the UNWIND_X86_64_RBP_FRAME_REGISTERS bits as five 3-bit entries. +// Each entry contains which register to restore. +// UNWIND_X86_64_MODE_STACK_IMMD: +// A "frameless" (RBP not used as frame pointer) function with a small +// constant stack size. To return, a constant (encoded in the compact +// unwind encoding) is added to the RSP. Then the return is done by +// popping the stack into the pc. +// All non-volatile registers that need to be restored must have been saved +// on the stack immediately after the return address. The stack_size/8 is +// encoded in the UNWIND_X86_64_FRAMELESS_STACK_SIZE (max stack size is 2048). +// The number of registers saved is encoded in UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT. +// UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION constains which registers were +// saved and their order. +// UNWIND_X86_64_MODE_STACK_IND: +// A "frameless" (RBP not used as frame pointer) function large constant +// stack size. This case is like the previous, except the stack size is too +// large to encode in the compact unwind encoding. Instead it requires that +// the function contains "subq $nnnnnnnn,RSP" in its prolog. The compact +// encoding contains the offset to the nnnnnnnn value in the function in +// UNWIND_X86_64_FRAMELESS_STACK_SIZE. +// UNWIND_X86_64_MODE_DWARF: +// No compact unwind encoding is available. Instead the low 24-bits of the // compact encoding is the offset of the DWARF FDE in the __eh_frame section. -// This mode is never used in object files. It is only generated by the +// This mode is never used in object files. It is only generated by the // linker in final linked images which have only DWARF unwind info for a -// function. -// - - -// ARM64 -// -// 1-bit: start -// 1-bit: has lsda -// 2-bit: personality index -// +// function. +// + + +// ARM64 +// +// 1-bit: start +// 1-bit: has lsda +// 2-bit: personality index +// // 4-bits: 4=frame-based, 3=DWARF, 2=frameless -// frameless: -// 12-bits of stack size -// frame-based: -// 4-bits D reg pairs saved -// 5-bits X reg pairs saved +// frameless: +// 12-bits of stack size +// frame-based: +// 4-bits D reg pairs saved +// 5-bits X reg pairs saved // DWARF: // 24-bits offset of DWARF FDE in __eh_frame section -// -enum { - UNWIND_ARM64_MODE_MASK = 0x0F000000, - UNWIND_ARM64_MODE_FRAMELESS = 0x02000000, - UNWIND_ARM64_MODE_DWARF = 0x03000000, - UNWIND_ARM64_MODE_FRAME = 0x04000000, - - UNWIND_ARM64_FRAME_X19_X20_PAIR = 0x00000001, - UNWIND_ARM64_FRAME_X21_X22_PAIR = 0x00000002, - UNWIND_ARM64_FRAME_X23_X24_PAIR = 0x00000004, - UNWIND_ARM64_FRAME_X25_X26_PAIR = 0x00000008, - UNWIND_ARM64_FRAME_X27_X28_PAIR = 0x00000010, - UNWIND_ARM64_FRAME_D8_D9_PAIR = 0x00000100, - UNWIND_ARM64_FRAME_D10_D11_PAIR = 0x00000200, - UNWIND_ARM64_FRAME_D12_D13_PAIR = 0x00000400, - UNWIND_ARM64_FRAME_D14_D15_PAIR = 0x00000800, - - UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK = 0x00FFF000, - UNWIND_ARM64_DWARF_SECTION_OFFSET = 0x00FFFFFF, -}; -// For arm64 there are three modes for the compact unwind encoding: -// UNWIND_ARM64_MODE_FRAME: -// This is a standard arm64 prolog where FP/LR are immediately pushed on the -// stack, then SP is copied to FP. If there are any non-volatile registers -// saved, then are copied into the stack frame in pairs in a contiguous -// range right below the saved FP/LR pair. Any subset of the five X pairs -// and four D pairs can be saved, but the memory layout must be in register -// number order. -// UNWIND_ARM64_MODE_FRAMELESS: -// A "frameless" leaf function, where FP/LR are not saved. The return address -// remains in LR throughout the function. If any non-volatile registers -// are saved, they must be pushed onto the stack before any stack space is -// allocated for local variables. The stack sized (including any saved -// non-volatile registers) divided by 16 is encoded in the bits -// UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK. -// UNWIND_ARM64_MODE_DWARF: -// No compact unwind encoding is available. Instead the low 24-bits of the +// +enum { + UNWIND_ARM64_MODE_MASK = 0x0F000000, + UNWIND_ARM64_MODE_FRAMELESS = 0x02000000, + UNWIND_ARM64_MODE_DWARF = 0x03000000, + UNWIND_ARM64_MODE_FRAME = 0x04000000, + + UNWIND_ARM64_FRAME_X19_X20_PAIR = 0x00000001, + UNWIND_ARM64_FRAME_X21_X22_PAIR = 0x00000002, + UNWIND_ARM64_FRAME_X23_X24_PAIR = 0x00000004, + UNWIND_ARM64_FRAME_X25_X26_PAIR = 0x00000008, + UNWIND_ARM64_FRAME_X27_X28_PAIR = 0x00000010, + UNWIND_ARM64_FRAME_D8_D9_PAIR = 0x00000100, + UNWIND_ARM64_FRAME_D10_D11_PAIR = 0x00000200, + UNWIND_ARM64_FRAME_D12_D13_PAIR = 0x00000400, + UNWIND_ARM64_FRAME_D14_D15_PAIR = 0x00000800, + + UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK = 0x00FFF000, + UNWIND_ARM64_DWARF_SECTION_OFFSET = 0x00FFFFFF, +}; +// For arm64 there are three modes for the compact unwind encoding: +// UNWIND_ARM64_MODE_FRAME: +// This is a standard arm64 prolog where FP/LR are immediately pushed on the +// stack, then SP is copied to FP. If there are any non-volatile registers +// saved, then are copied into the stack frame in pairs in a contiguous +// range right below the saved FP/LR pair. Any subset of the five X pairs +// and four D pairs can be saved, but the memory layout must be in register +// number order. +// UNWIND_ARM64_MODE_FRAMELESS: +// A "frameless" leaf function, where FP/LR are not saved. The return address +// remains in LR throughout the function. If any non-volatile registers +// are saved, they must be pushed onto the stack before any stack space is +// allocated for local variables. The stack sized (including any saved +// non-volatile registers) divided by 16 is encoded in the bits +// UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK. +// UNWIND_ARM64_MODE_DWARF: +// No compact unwind encoding is available. Instead the low 24-bits of the // compact encoding is the offset of the DWARF FDE in the __eh_frame section. -// This mode is never used in object files. It is only generated by the +// This mode is never used in object files. It is only generated by the // linker in final linked images which have only DWARF unwind info for a -// function. -// - - - - - -//////////////////////////////////////////////////////////////////////////////// -// -// Relocatable Object Files: __LD,__compact_unwind -// -//////////////////////////////////////////////////////////////////////////////// - -// -// A compiler can generated compact unwind information for a function by adding -// a "row" to the __LD,__compact_unwind section. This section has the -// S_ATTR_DEBUG bit set, so the section will be ignored by older linkers. -// It is removed by the new linker, so never ends up in final executables. -// This section is a table, initially with one row per function (that needs -// unwind info). The table columns and some conceptual entries are: -// -// range-start pointer to start of function/range -// range-length -// compact-unwind-encoding 32-bit encoding -// personality-function or zero if no personality function -// lsda or zero if no LSDA data -// -// The length and encoding fields are 32-bits. The other are all pointer sized. -// -// In x86_64 assembly, these entry would look like: -// -// .section __LD,__compact_unwind,regular,debug -// -// #compact unwind for _foo -// .quad _foo -// .set L1,LfooEnd-_foo -// .long L1 -// .long 0x01010001 -// .quad 0 -// .quad 0 -// -// #compact unwind for _bar -// .quad _bar -// .set L2,LbarEnd-_bar -// .long L2 -// .long 0x01020011 -// .quad __gxx_personality -// .quad except_tab1 -// -// -// Notes: There is no need for any labels in the the __compact_unwind section. -// The use of the .set directive is to force the evaluation of the -// range-length at assembly time, instead of generating relocations. -// -// To support future compiler optimizations where which non-volatile registers -// are saved changes within a function (e.g. delay saving non-volatiles until -// necessary), there can by multiple lines in the __compact_unwind table for one -// function, each with a different (non-overlapping) range and each with -// different compact unwind encodings that correspond to the non-volatiles -// saved at that range of the function. -// -// If a particular function is so wacky that there is no compact unwind way +// function. +// + + + + + +//////////////////////////////////////////////////////////////////////////////// +// +// Relocatable Object Files: __LD,__compact_unwind +// +//////////////////////////////////////////////////////////////////////////////// + +// +// A compiler can generated compact unwind information for a function by adding +// a "row" to the __LD,__compact_unwind section. This section has the +// S_ATTR_DEBUG bit set, so the section will be ignored by older linkers. +// It is removed by the new linker, so never ends up in final executables. +// This section is a table, initially with one row per function (that needs +// unwind info). The table columns and some conceptual entries are: +// +// range-start pointer to start of function/range +// range-length +// compact-unwind-encoding 32-bit encoding +// personality-function or zero if no personality function +// lsda or zero if no LSDA data +// +// The length and encoding fields are 32-bits. The other are all pointer sized. +// +// In x86_64 assembly, these entry would look like: +// +// .section __LD,__compact_unwind,regular,debug +// +// #compact unwind for _foo +// .quad _foo +// .set L1,LfooEnd-_foo +// .long L1 +// .long 0x01010001 +// .quad 0 +// .quad 0 +// +// #compact unwind for _bar +// .quad _bar +// .set L2,LbarEnd-_bar +// .long L2 +// .long 0x01020011 +// .quad __gxx_personality +// .quad except_tab1 +// +// +// Notes: There is no need for any labels in the the __compact_unwind section. +// The use of the .set directive is to force the evaluation of the +// range-length at assembly time, instead of generating relocations. +// +// To support future compiler optimizations where which non-volatile registers +// are saved changes within a function (e.g. delay saving non-volatiles until +// necessary), there can by multiple lines in the __compact_unwind table for one +// function, each with a different (non-overlapping) range and each with +// different compact unwind encodings that correspond to the non-volatiles +// saved at that range of the function. +// +// If a particular function is so wacky that there is no compact unwind way // to encode it, then the compiler can emit traditional DWARF unwind info. -// The runtime will use which ever is available. -// -// Runtime support for compact unwind encodings are only available on 10.6 -// and later. So, the compiler should not generate it when targeting pre-10.6. - - - - -//////////////////////////////////////////////////////////////////////////////// -// -// Final Linked Images: __TEXT,__unwind_info -// -//////////////////////////////////////////////////////////////////////////////// - -// -// The __TEXT,__unwind_info section is laid out for an efficient two level lookup. -// The header of the section contains a coarse index that maps function address -// to the page (4096 byte block) containing the unwind info for that function. -// - -#define UNWIND_SECTION_VERSION 1 -struct unwind_info_section_header -{ - uint32_t version; // UNWIND_SECTION_VERSION - uint32_t commonEncodingsArraySectionOffset; - uint32_t commonEncodingsArrayCount; - uint32_t personalityArraySectionOffset; - uint32_t personalityArrayCount; - uint32_t indexSectionOffset; - uint32_t indexCount; - // compact_unwind_encoding_t[] - // uint32_t personalities[] - // unwind_info_section_header_index_entry[] - // unwind_info_section_header_lsda_index_entry[] -}; - -struct unwind_info_section_header_index_entry -{ - uint32_t functionOffset; - uint32_t secondLevelPagesSectionOffset; // section offset to start of regular or compress page - uint32_t lsdaIndexArraySectionOffset; // section offset to start of lsda_index array for this range -}; - -struct unwind_info_section_header_lsda_index_entry -{ - uint32_t functionOffset; - uint32_t lsdaOffset; -}; - -// -// There are two kinds of second level index pages: regular and compressed. -// A compressed page can hold up to 1021 entries, but it cannot be used -// if too many different encoding types are used. The regular page holds -// 511 entries. -// - -struct unwind_info_regular_second_level_entry -{ - uint32_t functionOffset; - compact_unwind_encoding_t encoding; -}; - -#define UNWIND_SECOND_LEVEL_REGULAR 2 -struct unwind_info_regular_second_level_page_header -{ - uint32_t kind; // UNWIND_SECOND_LEVEL_REGULAR - uint16_t entryPageOffset; - uint16_t entryCount; - // entry array -}; - -#define UNWIND_SECOND_LEVEL_COMPRESSED 3 -struct unwind_info_compressed_second_level_page_header -{ - uint32_t kind; // UNWIND_SECOND_LEVEL_COMPRESSED - uint16_t entryPageOffset; - uint16_t entryCount; - uint16_t encodingsPageOffset; - uint16_t encodingsCount; - // 32-bit entry array - // encodings array -}; - -#define UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET(entry) (entry & 0x00FFFFFF) -#define UNWIND_INFO_COMPRESSED_ENTRY_ENCODING_INDEX(entry) ((entry >> 24) & 0xFF) - - - -#endif - +// The runtime will use which ever is available. +// +// Runtime support for compact unwind encodings are only available on 10.6 +// and later. So, the compiler should not generate it when targeting pre-10.6. + + + + +//////////////////////////////////////////////////////////////////////////////// +// +// Final Linked Images: __TEXT,__unwind_info +// +//////////////////////////////////////////////////////////////////////////////// + +// +// The __TEXT,__unwind_info section is laid out for an efficient two level lookup. +// The header of the section contains a coarse index that maps function address +// to the page (4096 byte block) containing the unwind info for that function. +// + +#define UNWIND_SECTION_VERSION 1 +struct unwind_info_section_header +{ + uint32_t version; // UNWIND_SECTION_VERSION + uint32_t commonEncodingsArraySectionOffset; + uint32_t commonEncodingsArrayCount; + uint32_t personalityArraySectionOffset; + uint32_t personalityArrayCount; + uint32_t indexSectionOffset; + uint32_t indexCount; + // compact_unwind_encoding_t[] + // uint32_t personalities[] + // unwind_info_section_header_index_entry[] + // unwind_info_section_header_lsda_index_entry[] +}; + +struct unwind_info_section_header_index_entry +{ + uint32_t functionOffset; + uint32_t secondLevelPagesSectionOffset; // section offset to start of regular or compress page + uint32_t lsdaIndexArraySectionOffset; // section offset to start of lsda_index array for this range +}; + +struct unwind_info_section_header_lsda_index_entry +{ + uint32_t functionOffset; + uint32_t lsdaOffset; +}; + +// +// There are two kinds of second level index pages: regular and compressed. +// A compressed page can hold up to 1021 entries, but it cannot be used +// if too many different encoding types are used. The regular page holds +// 511 entries. +// + +struct unwind_info_regular_second_level_entry +{ + uint32_t functionOffset; + compact_unwind_encoding_t encoding; +}; + +#define UNWIND_SECOND_LEVEL_REGULAR 2 +struct unwind_info_regular_second_level_page_header +{ + uint32_t kind; // UNWIND_SECOND_LEVEL_REGULAR + uint16_t entryPageOffset; + uint16_t entryCount; + // entry array +}; + +#define UNWIND_SECOND_LEVEL_COMPRESSED 3 +struct unwind_info_compressed_second_level_page_header +{ + uint32_t kind; // UNWIND_SECOND_LEVEL_COMPRESSED + uint16_t entryPageOffset; + uint16_t entryCount; + uint16_t encodingsPageOffset; + uint16_t encodingsCount; + // 32-bit entry array + // encodings array +}; + +#define UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET(entry) (entry & 0x00FFFFFF) +#define UNWIND_INFO_COMPRESSED_ENTRY_ENCODING_INDEX(entry) ((entry >> 24) & 0xFF) + + + +#endif + diff --git a/contrib/libs/libunwind/include/unwind.h b/contrib/libs/libunwind/include/unwind.h index 13ff2b6bf8..6949e063dd 100644 --- a/contrib/libs/libunwind/include/unwind.h +++ b/contrib/libs/libunwind/include/unwind.h @@ -1,190 +1,190 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// C++ ABI Level 1 ABI documented at: +// +// +// C++ ABI Level 1 ABI documented at: // https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html -// -//===----------------------------------------------------------------------===// - -#ifndef __UNWIND_H__ -#define __UNWIND_H__ - -#include "__libunwind_config.h" - -#include <stdint.h> -#include <stddef.h> - +// +//===----------------------------------------------------------------------===// + +#ifndef __UNWIND_H__ +#define __UNWIND_H__ + +#include "__libunwind_config.h" + +#include <stdint.h> +#include <stddef.h> + #if defined(__SEH__) && !defined(__USING_SJLJ_EXCEPTIONS__) && defined(_WIN32) #include <windows.h> #include <ntverp.h> #endif -#if defined(__APPLE__) -#define LIBUNWIND_UNAVAIL __attribute__ (( deprecated )) -#else -#define LIBUNWIND_UNAVAIL -#endif - -typedef enum { - _URC_NO_REASON = 0, - _URC_OK = 0, - _URC_FOREIGN_EXCEPTION_CAUGHT = 1, - _URC_FATAL_PHASE2_ERROR = 2, - _URC_FATAL_PHASE1_ERROR = 3, - _URC_NORMAL_STOP = 4, - _URC_END_OF_STACK = 5, - _URC_HANDLER_FOUND = 6, - _URC_INSTALL_CONTEXT = 7, - _URC_CONTINUE_UNWIND = 8, +#if defined(__APPLE__) +#define LIBUNWIND_UNAVAIL __attribute__ (( deprecated )) +#else +#define LIBUNWIND_UNAVAIL +#endif + +typedef enum { + _URC_NO_REASON = 0, + _URC_OK = 0, + _URC_FOREIGN_EXCEPTION_CAUGHT = 1, + _URC_FATAL_PHASE2_ERROR = 2, + _URC_FATAL_PHASE1_ERROR = 3, + _URC_NORMAL_STOP = 4, + _URC_END_OF_STACK = 5, + _URC_HANDLER_FOUND = 6, + _URC_INSTALL_CONTEXT = 7, + _URC_CONTINUE_UNWIND = 8, #if defined(_LIBUNWIND_ARM_EHABI) - _URC_FAILURE = 9 -#endif -} _Unwind_Reason_Code; - -typedef enum { - _UA_SEARCH_PHASE = 1, - _UA_CLEANUP_PHASE = 2, - _UA_HANDLER_FRAME = 4, - _UA_FORCE_UNWIND = 8, - _UA_END_OF_STACK = 16 // gcc extension to C++ ABI -} _Unwind_Action; - -typedef struct _Unwind_Context _Unwind_Context; // opaque - + _URC_FAILURE = 9 +#endif +} _Unwind_Reason_Code; + +typedef enum { + _UA_SEARCH_PHASE = 1, + _UA_CLEANUP_PHASE = 2, + _UA_HANDLER_FRAME = 4, + _UA_FORCE_UNWIND = 8, + _UA_END_OF_STACK = 16 // gcc extension to C++ ABI +} _Unwind_Action; + +typedef struct _Unwind_Context _Unwind_Context; // opaque + #if defined(_LIBUNWIND_ARM_EHABI) #include "unwind_arm_ehabi.h" #else #include "unwind_itanium.h" #endif - -typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn) - (int version, - _Unwind_Action actions, + +typedef _Unwind_Reason_Code (*_Unwind_Stop_Fn) + (int version, + _Unwind_Action actions, _Unwind_Exception_Class exceptionClass, - _Unwind_Exception* exceptionObject, - struct _Unwind_Context* context, + _Unwind_Exception* exceptionObject, + struct _Unwind_Context* context, void* stop_parameter); - -#ifdef __cplusplus -extern "C" { -#endif - -extern uintptr_t _Unwind_GetRegionStart(struct _Unwind_Context *context); -extern uintptr_t - _Unwind_GetLanguageSpecificData(struct _Unwind_Context *context); -#ifdef __USING_SJLJ_EXCEPTIONS__ -extern _Unwind_Reason_Code - _Unwind_SjLj_ForcedUnwind(_Unwind_Exception *exception_object, - _Unwind_Stop_Fn stop, void *stop_parameter); -#else -extern _Unwind_Reason_Code - _Unwind_ForcedUnwind(_Unwind_Exception *exception_object, - _Unwind_Stop_Fn stop, void *stop_parameter); -#endif - -#ifdef __USING_SJLJ_EXCEPTIONS__ -typedef struct _Unwind_FunctionContext *_Unwind_FunctionContext_t; -extern void _Unwind_SjLj_Register(_Unwind_FunctionContext_t fc); -extern void _Unwind_SjLj_Unregister(_Unwind_FunctionContext_t fc); -#endif - -// -// The following are semi-suppoted extensions to the C++ ABI -// - -// -// called by __cxa_rethrow(). -// -#ifdef __USING_SJLJ_EXCEPTIONS__ -extern _Unwind_Reason_Code - _Unwind_SjLj_Resume_or_Rethrow(_Unwind_Exception *exception_object); -#else -extern _Unwind_Reason_Code - _Unwind_Resume_or_Rethrow(_Unwind_Exception *exception_object); -#endif - -// _Unwind_Backtrace() is a gcc extension that walks the stack and calls the -// _Unwind_Trace_Fn once per frame until it reaches the bottom of the stack -// or the _Unwind_Trace_Fn function returns something other than _URC_NO_REASON. -typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context *, - void *); -extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *); - -// _Unwind_GetCFA is a gcc extension that can be called from within a -// personality handler to get the CFA (stack pointer before call) of -// current frame. -extern uintptr_t _Unwind_GetCFA(struct _Unwind_Context *); - - -// _Unwind_GetIPInfo is a gcc extension that can be called from within a -// personality handler. Similar to _Unwind_GetIP() but also returns in -// *ipBefore a non-zero value if the instruction pointer is at or before the -// instruction causing the unwind. Normally, in a function call, the IP returned -// is the return address which is after the call instruction and may be past the -// end of the function containing the call instruction. -extern uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context, - int *ipBefore); - - -// __register_frame() is used with dynamically generated code to register the -// FDE for a generated (JIT) code. The FDE must use pc-rel addressing to point -// to its function and optional LSDA. -// __register_frame() has existed in all versions of Mac OS X, but in 10.4 and -// 10.5 it was buggy and did not actually register the FDE with the unwinder. -// In 10.6 and later it does register properly. -extern void __register_frame(const void *fde); -extern void __deregister_frame(const void *fde); - -// _Unwind_Find_FDE() will locate the FDE if the pc is in some function that has -// an associated FDE. Note, Mac OS X 10.6 and later, introduces "compact unwind + +#ifdef __cplusplus +extern "C" { +#endif + +extern uintptr_t _Unwind_GetRegionStart(struct _Unwind_Context *context); +extern uintptr_t + _Unwind_GetLanguageSpecificData(struct _Unwind_Context *context); +#ifdef __USING_SJLJ_EXCEPTIONS__ +extern _Unwind_Reason_Code + _Unwind_SjLj_ForcedUnwind(_Unwind_Exception *exception_object, + _Unwind_Stop_Fn stop, void *stop_parameter); +#else +extern _Unwind_Reason_Code + _Unwind_ForcedUnwind(_Unwind_Exception *exception_object, + _Unwind_Stop_Fn stop, void *stop_parameter); +#endif + +#ifdef __USING_SJLJ_EXCEPTIONS__ +typedef struct _Unwind_FunctionContext *_Unwind_FunctionContext_t; +extern void _Unwind_SjLj_Register(_Unwind_FunctionContext_t fc); +extern void _Unwind_SjLj_Unregister(_Unwind_FunctionContext_t fc); +#endif + +// +// The following are semi-suppoted extensions to the C++ ABI +// + +// +// called by __cxa_rethrow(). +// +#ifdef __USING_SJLJ_EXCEPTIONS__ +extern _Unwind_Reason_Code + _Unwind_SjLj_Resume_or_Rethrow(_Unwind_Exception *exception_object); +#else +extern _Unwind_Reason_Code + _Unwind_Resume_or_Rethrow(_Unwind_Exception *exception_object); +#endif + +// _Unwind_Backtrace() is a gcc extension that walks the stack and calls the +// _Unwind_Trace_Fn once per frame until it reaches the bottom of the stack +// or the _Unwind_Trace_Fn function returns something other than _URC_NO_REASON. +typedef _Unwind_Reason_Code (*_Unwind_Trace_Fn)(struct _Unwind_Context *, + void *); +extern _Unwind_Reason_Code _Unwind_Backtrace(_Unwind_Trace_Fn, void *); + +// _Unwind_GetCFA is a gcc extension that can be called from within a +// personality handler to get the CFA (stack pointer before call) of +// current frame. +extern uintptr_t _Unwind_GetCFA(struct _Unwind_Context *); + + +// _Unwind_GetIPInfo is a gcc extension that can be called from within a +// personality handler. Similar to _Unwind_GetIP() but also returns in +// *ipBefore a non-zero value if the instruction pointer is at or before the +// instruction causing the unwind. Normally, in a function call, the IP returned +// is the return address which is after the call instruction and may be past the +// end of the function containing the call instruction. +extern uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context, + int *ipBefore); + + +// __register_frame() is used with dynamically generated code to register the +// FDE for a generated (JIT) code. The FDE must use pc-rel addressing to point +// to its function and optional LSDA. +// __register_frame() has existed in all versions of Mac OS X, but in 10.4 and +// 10.5 it was buggy and did not actually register the FDE with the unwinder. +// In 10.6 and later it does register properly. +extern void __register_frame(const void *fde); +extern void __deregister_frame(const void *fde); + +// _Unwind_Find_FDE() will locate the FDE if the pc is in some function that has +// an associated FDE. Note, Mac OS X 10.6 and later, introduces "compact unwind // info" which the runtime uses in preference to DWARF unwind info. This -// function will only work if the target function has an FDE but no compact -// unwind info. -struct dwarf_eh_bases { - uintptr_t tbase; - uintptr_t dbase; - uintptr_t func; -}; -extern const void *_Unwind_Find_FDE(const void *pc, struct dwarf_eh_bases *); - - -// This function attempts to find the start (address of first instruction) of -// a function given an address inside the function. It only works if the +// function will only work if the target function has an FDE but no compact +// unwind info. +struct dwarf_eh_bases { + uintptr_t tbase; + uintptr_t dbase; + uintptr_t func; +}; +extern const void *_Unwind_Find_FDE(const void *pc, struct dwarf_eh_bases *); + + +// This function attempts to find the start (address of first instruction) of +// a function given an address inside the function. It only works if the // function has an FDE (DWARF unwind info). -// This function is unimplemented on Mac OS X 10.6 and later. Instead, use -// _Unwind_Find_FDE() and look at the dwarf_eh_bases.func result. -extern void *_Unwind_FindEnclosingFunction(void *pc); - -// Mac OS X does not support text-rel and data-rel addressing so these functions -// are unimplemented -extern uintptr_t _Unwind_GetDataRelBase(struct _Unwind_Context *context) - LIBUNWIND_UNAVAIL; -extern uintptr_t _Unwind_GetTextRelBase(struct _Unwind_Context *context) - LIBUNWIND_UNAVAIL; - -// Mac OS X 10.4 and 10.5 had implementations of these functions in -// libgcc_s.dylib, but they never worked. -/// These functions are no longer available on Mac OS X. -extern void __register_frame_info_bases(const void *fde, void *ob, void *tb, - void *db) LIBUNWIND_UNAVAIL; -extern void __register_frame_info(const void *fde, void *ob) - LIBUNWIND_UNAVAIL; -extern void __register_frame_info_table_bases(const void *fde, void *ob, - void *tb, void *db) - LIBUNWIND_UNAVAIL; -extern void __register_frame_info_table(const void *fde, void *ob) - LIBUNWIND_UNAVAIL; -extern void __register_frame_table(const void *fde) - LIBUNWIND_UNAVAIL; -extern void *__deregister_frame_info(const void *fde) - LIBUNWIND_UNAVAIL; -extern void *__deregister_frame_info_bases(const void *fde) - LIBUNWIND_UNAVAIL; - +// This function is unimplemented on Mac OS X 10.6 and later. Instead, use +// _Unwind_Find_FDE() and look at the dwarf_eh_bases.func result. +extern void *_Unwind_FindEnclosingFunction(void *pc); + +// Mac OS X does not support text-rel and data-rel addressing so these functions +// are unimplemented +extern uintptr_t _Unwind_GetDataRelBase(struct _Unwind_Context *context) + LIBUNWIND_UNAVAIL; +extern uintptr_t _Unwind_GetTextRelBase(struct _Unwind_Context *context) + LIBUNWIND_UNAVAIL; + +// Mac OS X 10.4 and 10.5 had implementations of these functions in +// libgcc_s.dylib, but they never worked. +/// These functions are no longer available on Mac OS X. +extern void __register_frame_info_bases(const void *fde, void *ob, void *tb, + void *db) LIBUNWIND_UNAVAIL; +extern void __register_frame_info(const void *fde, void *ob) + LIBUNWIND_UNAVAIL; +extern void __register_frame_info_table_bases(const void *fde, void *ob, + void *tb, void *db) + LIBUNWIND_UNAVAIL; +extern void __register_frame_info_table(const void *fde, void *ob) + LIBUNWIND_UNAVAIL; +extern void __register_frame_table(const void *fde) + LIBUNWIND_UNAVAIL; +extern void *__deregister_frame_info(const void *fde) + LIBUNWIND_UNAVAIL; +extern void *__deregister_frame_info_bases(const void *fde) + LIBUNWIND_UNAVAIL; + #if defined(__SEH__) && !defined(__USING_SJLJ_EXCEPTIONS__) #ifndef _WIN32 typedef struct _EXCEPTION_RECORD EXCEPTION_RECORD; @@ -215,8 +215,8 @@ typedef struct _Unwind_Backtrace_Buffer { void* backtrace[_YNDX_LIBUNWIND_EXCEPTION_BACKTRACE_SIZE]; } _Unwind_Backtrace_Buffer; #endif -#ifdef __cplusplus -} -#endif - -#endif // __UNWIND_H__ +#ifdef __cplusplus +} +#endif + +#endif // __UNWIND_H__ diff --git a/contrib/libs/libunwind/include/unwind_arm_ehabi.h b/contrib/libs/libunwind/include/unwind_arm_ehabi.h index 178834a241..6277a1457f 100644 --- a/contrib/libs/libunwind/include/unwind_arm_ehabi.h +++ b/contrib/libs/libunwind/include/unwind_arm_ehabi.h @@ -1,170 +1,170 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// C++ ABI Level 1 ABI documented at: +// +// +// C++ ABI Level 1 ABI documented at: // https://github.com/ARM-software/abi-aa/blob/main/ehabi32/ehabi32.rst -// -//===----------------------------------------------------------------------===// - +// +//===----------------------------------------------------------------------===// + #ifndef __ARM_EHABI_UNWIND_H__ #define __ARM_EHABI_UNWIND_H__ - -typedef uint32_t _Unwind_State; - -static const _Unwind_State _US_VIRTUAL_UNWIND_FRAME = 0; -static const _Unwind_State _US_UNWIND_FRAME_STARTING = 1; -static const _Unwind_State _US_UNWIND_FRAME_RESUME = 2; + +typedef uint32_t _Unwind_State; + +static const _Unwind_State _US_VIRTUAL_UNWIND_FRAME = 0; +static const _Unwind_State _US_UNWIND_FRAME_STARTING = 1; +static const _Unwind_State _US_UNWIND_FRAME_RESUME = 2; static const _Unwind_State _US_ACTION_MASK = 3; -/* Undocumented flag for force unwinding. */ -static const _Unwind_State _US_FORCE_UNWIND = 8; - -typedef uint32_t _Unwind_EHT_Header; - -struct _Unwind_Control_Block; -typedef struct _Unwind_Control_Block _Unwind_Control_Block; +/* Undocumented flag for force unwinding. */ +static const _Unwind_State _US_FORCE_UNWIND = 8; + +typedef uint32_t _Unwind_EHT_Header; + +struct _Unwind_Control_Block; +typedef struct _Unwind_Control_Block _Unwind_Control_Block; #define _Unwind_Exception _Unwind_Control_Block /* Alias */ typedef uint8_t _Unwind_Exception_Class[8]; - -struct _Unwind_Control_Block { + +struct _Unwind_Control_Block { _Unwind_Exception_Class exception_class; - void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block*); - - /* Unwinder cache, private fields for the unwinder's use */ - struct { - uint32_t reserved1; /* init reserved1 to 0, then don't touch */ - uint32_t reserved2; - uint32_t reserved3; - uint32_t reserved4; - uint32_t reserved5; - } unwinder_cache; - - /* Propagation barrier cache (valid after phase 1): */ - struct { - uint32_t sp; - uint32_t bitpattern[5]; - } barrier_cache; - - /* Cleanup cache (preserved over cleanup): */ - struct { - uint32_t bitpattern[4]; - } cleanup_cache; - - /* Pr cache (for pr's benefit): */ - struct { - uint32_t fnstart; /* function start address */ - _Unwind_EHT_Header* ehtp; /* pointer to EHT entry header word */ - uint32_t additional; - uint32_t reserved1; - } pr_cache; - - long long int :0; /* Enforce the 8-byte alignment */ + void (*exception_cleanup)(_Unwind_Reason_Code, _Unwind_Control_Block*); + + /* Unwinder cache, private fields for the unwinder's use */ + struct { + uint32_t reserved1; /* init reserved1 to 0, then don't touch */ + uint32_t reserved2; + uint32_t reserved3; + uint32_t reserved4; + uint32_t reserved5; + } unwinder_cache; + + /* Propagation barrier cache (valid after phase 1): */ + struct { + uint32_t sp; + uint32_t bitpattern[5]; + } barrier_cache; + + /* Cleanup cache (preserved over cleanup): */ + struct { + uint32_t bitpattern[4]; + } cleanup_cache; + + /* Pr cache (for pr's benefit): */ + struct { + uint32_t fnstart; /* function start address */ + _Unwind_EHT_Header* ehtp; /* pointer to EHT entry header word */ + uint32_t additional; + uint32_t reserved1; + } pr_cache; + + long long int :0; /* Enforce the 8-byte alignment */ } __attribute__((__aligned__(8))); - + typedef _Unwind_Reason_Code (*_Unwind_Personality_Fn)( _Unwind_State state, _Unwind_Exception *exceptionObject, struct _Unwind_Context *context); - -#ifdef __cplusplus -extern "C" { -#endif - -// -// The following are the base functions documented by the C++ ABI -// -#ifdef __USING_SJLJ_EXCEPTIONS__ -extern _Unwind_Reason_Code - _Unwind_SjLj_RaiseException(_Unwind_Exception *exception_object); -extern void _Unwind_SjLj_Resume(_Unwind_Exception *exception_object); -#else -extern _Unwind_Reason_Code - _Unwind_RaiseException(_Unwind_Exception *exception_object); -extern void _Unwind_Resume(_Unwind_Exception *exception_object); -#endif -extern void _Unwind_DeleteException(_Unwind_Exception *exception_object); - -typedef enum { + +#ifdef __cplusplus +extern "C" { +#endif + +// +// The following are the base functions documented by the C++ ABI +// +#ifdef __USING_SJLJ_EXCEPTIONS__ +extern _Unwind_Reason_Code + _Unwind_SjLj_RaiseException(_Unwind_Exception *exception_object); +extern void _Unwind_SjLj_Resume(_Unwind_Exception *exception_object); +#else +extern _Unwind_Reason_Code + _Unwind_RaiseException(_Unwind_Exception *exception_object); +extern void _Unwind_Resume(_Unwind_Exception *exception_object); +#endif +extern void _Unwind_DeleteException(_Unwind_Exception *exception_object); + +typedef enum { _UVRSC_CORE = 0, /* integer register */ _UVRSC_VFP = 1, /* vfp */ - _UVRSC_WMMXD = 3, /* Intel WMMX data register */ + _UVRSC_WMMXD = 3, /* Intel WMMX data register */ _UVRSC_WMMXC = 4, /* Intel WMMX control register */ _UVRSC_PSEUDO = 5 /* Special purpose pseudo register */ -} _Unwind_VRS_RegClass; - -typedef enum { - _UVRSD_UINT32 = 0, - _UVRSD_VFPX = 1, - _UVRSD_UINT64 = 3, - _UVRSD_FLOAT = 4, - _UVRSD_DOUBLE = 5 -} _Unwind_VRS_DataRepresentation; - -typedef enum { - _UVRSR_OK = 0, - _UVRSR_NOT_IMPLEMENTED = 1, - _UVRSR_FAILED = 2 -} _Unwind_VRS_Result; - -extern void _Unwind_Complete(_Unwind_Exception* exception_object); - -extern _Unwind_VRS_Result -_Unwind_VRS_Get(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, - uint32_t regno, _Unwind_VRS_DataRepresentation representation, - void *valuep); - -extern _Unwind_VRS_Result -_Unwind_VRS_Set(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, - uint32_t regno, _Unwind_VRS_DataRepresentation representation, - void *valuep); - -extern _Unwind_VRS_Result -_Unwind_VRS_Pop(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, - uint32_t discriminator, - _Unwind_VRS_DataRepresentation representation); - -#if defined(_LIBUNWIND_UNWIND_LEVEL1_EXTERNAL_LINKAGE) -#define _LIBUNWIND_EXPORT_UNWIND_LEVEL1 extern -#else -#define _LIBUNWIND_EXPORT_UNWIND_LEVEL1 static __inline__ -#endif - -// These are de facto helper functions for ARM, which delegate the function -// calls to _Unwind_VRS_Get/Set(). These are not a part of ARM EHABI -// specification, thus these function MUST be inlined. Please don't replace -// these with the "extern" function declaration; otherwise, the program -// including this <unwind.h> header won't be ABI compatible and will result in -// link error when we are linking the program with libgcc. - -_LIBUNWIND_EXPORT_UNWIND_LEVEL1 -uintptr_t _Unwind_GetGR(struct _Unwind_Context *context, int index) { - uintptr_t value = 0; - _Unwind_VRS_Get(context, _UVRSC_CORE, (uint32_t)index, _UVRSD_UINT32, &value); - return value; -} - -_LIBUNWIND_EXPORT_UNWIND_LEVEL1 -void _Unwind_SetGR(struct _Unwind_Context *context, int index, - uintptr_t value) { - _Unwind_VRS_Set(context, _UVRSC_CORE, (uint32_t)index, _UVRSD_UINT32, &value); -} - -_LIBUNWIND_EXPORT_UNWIND_LEVEL1 -uintptr_t _Unwind_GetIP(struct _Unwind_Context *context) { - // remove the thumb-bit before returning - return _Unwind_GetGR(context, 15) & (~(uintptr_t)0x1); -} - -_LIBUNWIND_EXPORT_UNWIND_LEVEL1 -void _Unwind_SetIP(struct _Unwind_Context *context, uintptr_t value) { - uintptr_t thumb_bit = _Unwind_GetGR(context, 15) & ((uintptr_t)0x1); - _Unwind_SetGR(context, 15, value | thumb_bit); -} - -#ifdef __cplusplus -} -#endif - +} _Unwind_VRS_RegClass; + +typedef enum { + _UVRSD_UINT32 = 0, + _UVRSD_VFPX = 1, + _UVRSD_UINT64 = 3, + _UVRSD_FLOAT = 4, + _UVRSD_DOUBLE = 5 +} _Unwind_VRS_DataRepresentation; + +typedef enum { + _UVRSR_OK = 0, + _UVRSR_NOT_IMPLEMENTED = 1, + _UVRSR_FAILED = 2 +} _Unwind_VRS_Result; + +extern void _Unwind_Complete(_Unwind_Exception* exception_object); + +extern _Unwind_VRS_Result +_Unwind_VRS_Get(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, + uint32_t regno, _Unwind_VRS_DataRepresentation representation, + void *valuep); + +extern _Unwind_VRS_Result +_Unwind_VRS_Set(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, + uint32_t regno, _Unwind_VRS_DataRepresentation representation, + void *valuep); + +extern _Unwind_VRS_Result +_Unwind_VRS_Pop(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, + uint32_t discriminator, + _Unwind_VRS_DataRepresentation representation); + +#if defined(_LIBUNWIND_UNWIND_LEVEL1_EXTERNAL_LINKAGE) +#define _LIBUNWIND_EXPORT_UNWIND_LEVEL1 extern +#else +#define _LIBUNWIND_EXPORT_UNWIND_LEVEL1 static __inline__ +#endif + +// These are de facto helper functions for ARM, which delegate the function +// calls to _Unwind_VRS_Get/Set(). These are not a part of ARM EHABI +// specification, thus these function MUST be inlined. Please don't replace +// these with the "extern" function declaration; otherwise, the program +// including this <unwind.h> header won't be ABI compatible and will result in +// link error when we are linking the program with libgcc. + +_LIBUNWIND_EXPORT_UNWIND_LEVEL1 +uintptr_t _Unwind_GetGR(struct _Unwind_Context *context, int index) { + uintptr_t value = 0; + _Unwind_VRS_Get(context, _UVRSC_CORE, (uint32_t)index, _UVRSD_UINT32, &value); + return value; +} + +_LIBUNWIND_EXPORT_UNWIND_LEVEL1 +void _Unwind_SetGR(struct _Unwind_Context *context, int index, + uintptr_t value) { + _Unwind_VRS_Set(context, _UVRSC_CORE, (uint32_t)index, _UVRSD_UINT32, &value); +} + +_LIBUNWIND_EXPORT_UNWIND_LEVEL1 +uintptr_t _Unwind_GetIP(struct _Unwind_Context *context) { + // remove the thumb-bit before returning + return _Unwind_GetGR(context, 15) & (~(uintptr_t)0x1); +} + +_LIBUNWIND_EXPORT_UNWIND_LEVEL1 +void _Unwind_SetIP(struct _Unwind_Context *context, uintptr_t value) { + uintptr_t thumb_bit = _Unwind_GetGR(context, 15) & ((uintptr_t)0x1); + _Unwind_SetGR(context, 15, value | thumb_bit); +} + +#ifdef __cplusplus +} +#endif + #endif // __ARM_EHABI_UNWIND_H__ diff --git a/contrib/libs/libunwind/include/unwind_itanium.h b/contrib/libs/libunwind/include/unwind_itanium.h index 9a415d243b..d94a6183be 100644 --- a/contrib/libs/libunwind/include/unwind_itanium.h +++ b/contrib/libs/libunwind/include/unwind_itanium.h @@ -1,76 +1,76 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// C++ ABI Level 1 ABI documented at: +// +// +// C++ ABI Level 1 ABI documented at: // https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html -// -//===----------------------------------------------------------------------===// - +// +//===----------------------------------------------------------------------===// + #ifndef __ITANIUM_UNWIND_H__ #define __ITANIUM_UNWIND_H__ - -struct _Unwind_Context; // opaque -struct _Unwind_Exception; // forward declaration -typedef struct _Unwind_Exception _Unwind_Exception; + +struct _Unwind_Context; // opaque +struct _Unwind_Exception; // forward declaration +typedef struct _Unwind_Exception _Unwind_Exception; typedef uint64_t _Unwind_Exception_Class; - -struct _Unwind_Exception { + +struct _Unwind_Exception { _Unwind_Exception_Class exception_class; - void (*exception_cleanup)(_Unwind_Reason_Code reason, - _Unwind_Exception *exc); + void (*exception_cleanup)(_Unwind_Reason_Code reason, + _Unwind_Exception *exc); #if defined(__SEH__) && !defined(__USING_SJLJ_EXCEPTIONS__) uintptr_t private_[6]; #else - uintptr_t private_1; // non-zero means forced unwind - uintptr_t private_2; // holds sp that phase1 found for phase2 to use + uintptr_t private_1; // non-zero means forced unwind + uintptr_t private_2; // holds sp that phase1 found for phase2 to use #endif #if __SIZEOF_POINTER__ == 4 // The implementation of _Unwind_Exception uses an attribute mode on the // above fields which has the side effect of causing this whole struct to // round up to 32 bytes in size (48 with SEH). To be more explicit, we add // pad fields added for binary compatibility. - uint32_t reserved[3]; -#endif + uint32_t reserved[3]; +#endif // The Itanium ABI requires that _Unwind_Exception objects are "double-word // aligned". GCC has interpreted this to mean "use the maximum useful // alignment for the target"; so do we. } __attribute__((__aligned__)); - + typedef _Unwind_Reason_Code (*_Unwind_Personality_Fn)( int version, _Unwind_Action actions, uint64_t exceptionClass, _Unwind_Exception *exceptionObject, struct _Unwind_Context *context); - -#ifdef __cplusplus -extern "C" { -#endif - -// -// The following are the base functions documented by the C++ ABI -// -#ifdef __USING_SJLJ_EXCEPTIONS__ -extern _Unwind_Reason_Code - _Unwind_SjLj_RaiseException(_Unwind_Exception *exception_object); -extern void _Unwind_SjLj_Resume(_Unwind_Exception *exception_object); -#else -extern _Unwind_Reason_Code - _Unwind_RaiseException(_Unwind_Exception *exception_object); -extern void _Unwind_Resume(_Unwind_Exception *exception_object); -#endif -extern void _Unwind_DeleteException(_Unwind_Exception *exception_object); - - -extern uintptr_t _Unwind_GetGR(struct _Unwind_Context *context, int index); -extern void _Unwind_SetGR(struct _Unwind_Context *context, int index, - uintptr_t new_value); -extern uintptr_t _Unwind_GetIP(struct _Unwind_Context *context); -extern void _Unwind_SetIP(struct _Unwind_Context *, uintptr_t new_value); - -#ifdef __cplusplus -} -#endif - + +#ifdef __cplusplus +extern "C" { +#endif + +// +// The following are the base functions documented by the C++ ABI +// +#ifdef __USING_SJLJ_EXCEPTIONS__ +extern _Unwind_Reason_Code + _Unwind_SjLj_RaiseException(_Unwind_Exception *exception_object); +extern void _Unwind_SjLj_Resume(_Unwind_Exception *exception_object); +#else +extern _Unwind_Reason_Code + _Unwind_RaiseException(_Unwind_Exception *exception_object); +extern void _Unwind_Resume(_Unwind_Exception *exception_object); +#endif +extern void _Unwind_DeleteException(_Unwind_Exception *exception_object); + + +extern uintptr_t _Unwind_GetGR(struct _Unwind_Context *context, int index); +extern void _Unwind_SetGR(struct _Unwind_Context *context, int index, + uintptr_t new_value); +extern uintptr_t _Unwind_GetIP(struct _Unwind_Context *context); +extern void _Unwind_SetIP(struct _Unwind_Context *, uintptr_t new_value); + +#ifdef __cplusplus +} +#endif + #endif // __ITANIUM_UNWIND_H__ diff --git a/contrib/libs/libunwind/src/AddressSpace.hpp b/contrib/libs/libunwind/src/AddressSpace.hpp index 6eff522593..0c4dfeb4e6 100644 --- a/contrib/libs/libunwind/src/AddressSpace.hpp +++ b/contrib/libs/libunwind/src/AddressSpace.hpp @@ -1,22 +1,22 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Abstracts accessing local vs remote address spaces. -// -//===----------------------------------------------------------------------===// - -#ifndef __ADDRESSSPACE_HPP__ -#define __ADDRESSSPACE_HPP__ - -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - +// +// +// Abstracts accessing local vs remote address spaces. +// +//===----------------------------------------------------------------------===// + +#ifndef __ADDRESSSPACE_HPP__ +#define __ADDRESSSPACE_HPP__ + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + #include "libunwind.h" #include "config.h" #include "dwarf2.h" @@ -32,12 +32,12 @@ #endif #if _LIBUNWIND_USE_DLADDR -#include <dlfcn.h> +#include <dlfcn.h> #if defined(__ELF__) && defined(_LIBUNWIND_LINK_DL_LIB) #pragma comment(lib, "dl") -#endif #endif - +#endif + #if defined(_LIBUNWIND_ARM_EHABI) struct EHABIIndexEntry { uint32_t functionOffset; @@ -45,8 +45,8 @@ struct EHABIIndexEntry { }; #endif -#ifdef __APPLE__ - +#ifdef __APPLE__ + struct dyld_unwind_sections { const struct mach_header* mh; @@ -55,15 +55,15 @@ struct EHABIIndexEntry { const void* compact_unwind_section; uintptr_t compact_unwind_section_length; }; - + // In 10.7.0 or later, libSystem.dylib implements this function. extern "C" bool _dyld_find_unwind_sections(void *, dyld_unwind_sections *); - + #elif defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) && defined(_LIBUNWIND_IS_BAREMETAL) -// When statically linked on bare-metal, the symbols for the EH table are looked -// up without going through the dynamic loader. - +// When statically linked on bare-metal, the symbols for the EH table are looked +// up without going through the dynamic loader. + // The following linker script may be used to produce the necessary sections and symbols. // Unless the --eh-frame-hdr linker option is provided, the section is not generated // and does not take space in the output file. @@ -108,100 +108,100 @@ extern char __exidx_end; #include <link.h> -#endif - -namespace libunwind { - -/// Used by findUnwindSections() to return info about needed sections. -struct UnwindInfoSections { +#endif + +namespace libunwind { + +/// Used by findUnwindSections() to return info about needed sections. +struct UnwindInfoSections { #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) || \ defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) || \ defined(_LIBUNWIND_USE_DL_ITERATE_PHDR) // No dso_base for SEH. - uintptr_t dso_base; -#endif + uintptr_t dso_base; +#endif #if defined(_LIBUNWIND_USE_DL_ITERATE_PHDR) size_t text_segment_length; #endif #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - uintptr_t dwarf_section; + uintptr_t dwarf_section; size_t dwarf_section_length; -#endif +#endif #if defined(_LIBUNWIND_SUPPORT_DWARF_INDEX) - uintptr_t dwarf_index_section; + uintptr_t dwarf_index_section; size_t dwarf_index_section_length; -#endif +#endif #if defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) - uintptr_t compact_unwind_section; + uintptr_t compact_unwind_section; size_t compact_unwind_section_length; -#endif +#endif #if defined(_LIBUNWIND_ARM_EHABI) - uintptr_t arm_section; + uintptr_t arm_section; size_t arm_section_length; -#endif -}; - - -/// LocalAddressSpace is used as a template parameter to UnwindCursor when -/// unwinding a thread in the same process. The wrappers compile away, -/// making local unwinds fast. +#endif +}; + + +/// LocalAddressSpace is used as a template parameter to UnwindCursor when +/// unwinding a thread in the same process. The wrappers compile away, +/// making local unwinds fast. class _LIBUNWIND_HIDDEN LocalAddressSpace { -public: +public: typedef uintptr_t pint_t; typedef intptr_t sint_t; - uint8_t get8(pint_t addr) { - uint8_t val; - memcpy(&val, (void *)addr, sizeof(val)); - return val; - } - uint16_t get16(pint_t addr) { - uint16_t val; - memcpy(&val, (void *)addr, sizeof(val)); - return val; - } - uint32_t get32(pint_t addr) { - uint32_t val; - memcpy(&val, (void *)addr, sizeof(val)); - return val; - } - uint64_t get64(pint_t addr) { - uint64_t val; - memcpy(&val, (void *)addr, sizeof(val)); - return val; - } - double getDouble(pint_t addr) { - double val; - memcpy(&val, (void *)addr, sizeof(val)); - return val; - } - v128 getVector(pint_t addr) { - v128 val; - memcpy(&val, (void *)addr, sizeof(val)); - return val; - } - uintptr_t getP(pint_t addr); + uint8_t get8(pint_t addr) { + uint8_t val; + memcpy(&val, (void *)addr, sizeof(val)); + return val; + } + uint16_t get16(pint_t addr) { + uint16_t val; + memcpy(&val, (void *)addr, sizeof(val)); + return val; + } + uint32_t get32(pint_t addr) { + uint32_t val; + memcpy(&val, (void *)addr, sizeof(val)); + return val; + } + uint64_t get64(pint_t addr) { + uint64_t val; + memcpy(&val, (void *)addr, sizeof(val)); + return val; + } + double getDouble(pint_t addr) { + double val; + memcpy(&val, (void *)addr, sizeof(val)); + return val; + } + v128 getVector(pint_t addr) { + v128 val; + memcpy(&val, (void *)addr, sizeof(val)); + return val; + } + uintptr_t getP(pint_t addr); uint64_t getRegister(pint_t addr); - static uint64_t getULEB128(pint_t &addr, pint_t end); - static int64_t getSLEB128(pint_t &addr, pint_t end); - - pint_t getEncodedP(pint_t &addr, pint_t end, uint8_t encoding, - pint_t datarelBase = 0); - bool findFunctionName(pint_t addr, char *buf, size_t bufLen, - unw_word_t *offset); - bool findUnwindSections(pint_t targetAddr, UnwindInfoSections &info); - bool findOtherFDE(pint_t targetAddr, pint_t &fde); - - static LocalAddressSpace sThisAddressSpace; -}; - -inline uintptr_t LocalAddressSpace::getP(pint_t addr) { + static uint64_t getULEB128(pint_t &addr, pint_t end); + static int64_t getSLEB128(pint_t &addr, pint_t end); + + pint_t getEncodedP(pint_t &addr, pint_t end, uint8_t encoding, + pint_t datarelBase = 0); + bool findFunctionName(pint_t addr, char *buf, size_t bufLen, + unw_word_t *offset); + bool findUnwindSections(pint_t targetAddr, UnwindInfoSections &info); + bool findOtherFDE(pint_t targetAddr, pint_t &fde); + + static LocalAddressSpace sThisAddressSpace; +}; + +inline uintptr_t LocalAddressSpace::getP(pint_t addr) { #if __SIZEOF_POINTER__ == 8 - return get64(addr); -#else - return get32(addr); -#endif -} - + return get64(addr); +#else + return get32(addr); +#endif +} + inline uint64_t LocalAddressSpace::getRegister(pint_t addr) { #if __SIZEOF_POINTER__ == 8 || defined(__mips64) return get64(addr); @@ -210,144 +210,144 @@ inline uint64_t LocalAddressSpace::getRegister(pint_t addr) { #endif } -/// Read a ULEB128 into a 64-bit word. -inline uint64_t LocalAddressSpace::getULEB128(pint_t &addr, pint_t end) { - const uint8_t *p = (uint8_t *)addr; - const uint8_t *pend = (uint8_t *)end; - uint64_t result = 0; - int bit = 0; - do { - uint64_t b; - - if (p == pend) - _LIBUNWIND_ABORT("truncated uleb128 expression"); - - b = *p & 0x7f; - - if (bit >= 64 || b << bit >> bit != b) { - _LIBUNWIND_ABORT("malformed uleb128 expression"); - } else { - result |= b << bit; - bit += 7; - } - } while (*p++ >= 0x80); - addr = (pint_t) p; - return result; -} - -/// Read a SLEB128 into a 64-bit word. -inline int64_t LocalAddressSpace::getSLEB128(pint_t &addr, pint_t end) { - const uint8_t *p = (uint8_t *)addr; - const uint8_t *pend = (uint8_t *)end; - int64_t result = 0; - int bit = 0; - uint8_t byte; - do { - if (p == pend) - _LIBUNWIND_ABORT("truncated sleb128 expression"); - byte = *p++; +/// Read a ULEB128 into a 64-bit word. +inline uint64_t LocalAddressSpace::getULEB128(pint_t &addr, pint_t end) { + const uint8_t *p = (uint8_t *)addr; + const uint8_t *pend = (uint8_t *)end; + uint64_t result = 0; + int bit = 0; + do { + uint64_t b; + + if (p == pend) + _LIBUNWIND_ABORT("truncated uleb128 expression"); + + b = *p & 0x7f; + + if (bit >= 64 || b << bit >> bit != b) { + _LIBUNWIND_ABORT("malformed uleb128 expression"); + } else { + result |= b << bit; + bit += 7; + } + } while (*p++ >= 0x80); + addr = (pint_t) p; + return result; +} + +/// Read a SLEB128 into a 64-bit word. +inline int64_t LocalAddressSpace::getSLEB128(pint_t &addr, pint_t end) { + const uint8_t *p = (uint8_t *)addr; + const uint8_t *pend = (uint8_t *)end; + int64_t result = 0; + int bit = 0; + uint8_t byte; + do { + if (p == pend) + _LIBUNWIND_ABORT("truncated sleb128 expression"); + byte = *p++; result |= (uint64_t)(byte & 0x7f) << bit; - bit += 7; - } while (byte & 0x80); - // sign extend negative numbers + bit += 7; + } while (byte & 0x80); + // sign extend negative numbers if ((byte & 0x40) != 0 && bit < 64) - result |= (-1ULL) << bit; - addr = (pint_t) p; - return result; -} - -inline LocalAddressSpace::pint_t -LocalAddressSpace::getEncodedP(pint_t &addr, pint_t end, uint8_t encoding, - pint_t datarelBase) { - pint_t startAddr = addr; - const uint8_t *p = (uint8_t *)addr; - pint_t result; - - // first get value - switch (encoding & 0x0F) { - case DW_EH_PE_ptr: - result = getP(addr); - p += sizeof(pint_t); - addr = (pint_t) p; - break; - case DW_EH_PE_uleb128: - result = (pint_t)getULEB128(addr, end); - break; - case DW_EH_PE_udata2: - result = get16(addr); - p += 2; - addr = (pint_t) p; - break; - case DW_EH_PE_udata4: - result = get32(addr); - p += 4; - addr = (pint_t) p; - break; - case DW_EH_PE_udata8: - result = (pint_t)get64(addr); - p += 8; - addr = (pint_t) p; - break; - case DW_EH_PE_sleb128: - result = (pint_t)getSLEB128(addr, end); - break; - case DW_EH_PE_sdata2: - // Sign extend from signed 16-bit value. - result = (pint_t)(int16_t)get16(addr); - p += 2; - addr = (pint_t) p; - break; - case DW_EH_PE_sdata4: - // Sign extend from signed 32-bit value. - result = (pint_t)(int32_t)get32(addr); - p += 4; - addr = (pint_t) p; - break; - case DW_EH_PE_sdata8: - result = (pint_t)get64(addr); - p += 8; - addr = (pint_t) p; - break; - default: - _LIBUNWIND_ABORT("unknown pointer encoding"); - } - - // then add relative offset - switch (encoding & 0x70) { - case DW_EH_PE_absptr: - // do nothing - break; - case DW_EH_PE_pcrel: - result += startAddr; - break; - case DW_EH_PE_textrel: - _LIBUNWIND_ABORT("DW_EH_PE_textrel pointer encoding not supported"); - break; - case DW_EH_PE_datarel: - // DW_EH_PE_datarel is only valid in a few places, so the parameter has a - // default value of 0, and we abort in the event that someone calls this - // function with a datarelBase of 0 and DW_EH_PE_datarel encoding. - if (datarelBase == 0) - _LIBUNWIND_ABORT("DW_EH_PE_datarel is invalid with a datarelBase of 0"); - result += datarelBase; - break; - case DW_EH_PE_funcrel: - _LIBUNWIND_ABORT("DW_EH_PE_funcrel pointer encoding not supported"); - break; - case DW_EH_PE_aligned: - _LIBUNWIND_ABORT("DW_EH_PE_aligned pointer encoding not supported"); - break; - default: - _LIBUNWIND_ABORT("unknown pointer encoding"); - break; - } - - if (encoding & DW_EH_PE_indirect) - result = getP(result); - - return result; -} - + result |= (-1ULL) << bit; + addr = (pint_t) p; + return result; +} + +inline LocalAddressSpace::pint_t +LocalAddressSpace::getEncodedP(pint_t &addr, pint_t end, uint8_t encoding, + pint_t datarelBase) { + pint_t startAddr = addr; + const uint8_t *p = (uint8_t *)addr; + pint_t result; + + // first get value + switch (encoding & 0x0F) { + case DW_EH_PE_ptr: + result = getP(addr); + p += sizeof(pint_t); + addr = (pint_t) p; + break; + case DW_EH_PE_uleb128: + result = (pint_t)getULEB128(addr, end); + break; + case DW_EH_PE_udata2: + result = get16(addr); + p += 2; + addr = (pint_t) p; + break; + case DW_EH_PE_udata4: + result = get32(addr); + p += 4; + addr = (pint_t) p; + break; + case DW_EH_PE_udata8: + result = (pint_t)get64(addr); + p += 8; + addr = (pint_t) p; + break; + case DW_EH_PE_sleb128: + result = (pint_t)getSLEB128(addr, end); + break; + case DW_EH_PE_sdata2: + // Sign extend from signed 16-bit value. + result = (pint_t)(int16_t)get16(addr); + p += 2; + addr = (pint_t) p; + break; + case DW_EH_PE_sdata4: + // Sign extend from signed 32-bit value. + result = (pint_t)(int32_t)get32(addr); + p += 4; + addr = (pint_t) p; + break; + case DW_EH_PE_sdata8: + result = (pint_t)get64(addr); + p += 8; + addr = (pint_t) p; + break; + default: + _LIBUNWIND_ABORT("unknown pointer encoding"); + } + + // then add relative offset + switch (encoding & 0x70) { + case DW_EH_PE_absptr: + // do nothing + break; + case DW_EH_PE_pcrel: + result += startAddr; + break; + case DW_EH_PE_textrel: + _LIBUNWIND_ABORT("DW_EH_PE_textrel pointer encoding not supported"); + break; + case DW_EH_PE_datarel: + // DW_EH_PE_datarel is only valid in a few places, so the parameter has a + // default value of 0, and we abort in the event that someone calls this + // function with a datarelBase of 0 and DW_EH_PE_datarel encoding. + if (datarelBase == 0) + _LIBUNWIND_ABORT("DW_EH_PE_datarel is invalid with a datarelBase of 0"); + result += datarelBase; + break; + case DW_EH_PE_funcrel: + _LIBUNWIND_ABORT("DW_EH_PE_funcrel pointer encoding not supported"); + break; + case DW_EH_PE_aligned: + _LIBUNWIND_ABORT("DW_EH_PE_aligned pointer encoding not supported"); + break; + default: + _LIBUNWIND_ABORT("unknown pointer encoding"); + break; + } + + if (encoding & DW_EH_PE_indirect) + result = getP(result); + + return result; +} + #if defined(_LIBUNWIND_USE_DL_ITERATE_PHDR) // The ElfW() macro for pointer-size independent ELF header traversal is not @@ -498,23 +498,23 @@ static int findUnwindSectionsByPhdr(struct dl_phdr_info *pinfo, #endif // defined(_LIBUNWIND_USE_DL_ITERATE_PHDR) -inline bool LocalAddressSpace::findUnwindSections(pint_t targetAddr, - UnwindInfoSections &info) { -#ifdef __APPLE__ - dyld_unwind_sections dyldInfo; - if (_dyld_find_unwind_sections((void *)targetAddr, &dyldInfo)) { - info.dso_base = (uintptr_t)dyldInfo.mh; +inline bool LocalAddressSpace::findUnwindSections(pint_t targetAddr, + UnwindInfoSections &info) { +#ifdef __APPLE__ + dyld_unwind_sections dyldInfo; + if (_dyld_find_unwind_sections((void *)targetAddr, &dyldInfo)) { + info.dso_base = (uintptr_t)dyldInfo.mh; #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - info.dwarf_section = (uintptr_t)dyldInfo.dwarf_section; + info.dwarf_section = (uintptr_t)dyldInfo.dwarf_section; info.dwarf_section_length = (size_t)dyldInfo.dwarf_section_length; - #endif - info.compact_unwind_section = (uintptr_t)dyldInfo.compact_unwind_section; + #endif + info.compact_unwind_section = (uintptr_t)dyldInfo.compact_unwind_section; info.compact_unwind_section_length = (size_t)dyldInfo.compact_unwind_section_length; - return true; - } + return true; + } #elif defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) && defined(_LIBUNWIND_IS_BAREMETAL) info.dso_base = 0; - // Bare metal is statically linked, so no need to ask the dynamic loader + // Bare metal is statically linked, so no need to ask the dynamic loader info.dwarf_section_length = (size_t)(&__eh_frame_end - &__eh_frame_start); info.dwarf_section = (uintptr_t)(&__eh_frame_start); _LIBUNWIND_TRACE_UNWINDING("findUnwindSections: section %p length %p", @@ -529,7 +529,7 @@ inline bool LocalAddressSpace::findUnwindSections(pint_t targetAddr, return true; #elif defined(_LIBUNWIND_ARM_EHABI) && defined(_LIBUNWIND_IS_BAREMETAL) // Bare metal is statically linked, so no need to ask the dynamic loader - info.arm_section = (uintptr_t)(&__exidx_start); + info.arm_section = (uintptr_t)(&__exidx_start); info.arm_section_length = (size_t)(&__exidx_end - &__exidx_start); _LIBUNWIND_TRACE_UNWINDING("findUnwindSections: section %p length %p", (void *)info.arm_section, (void *)info.arm_section_length); @@ -581,50 +581,50 @@ inline bool LocalAddressSpace::findUnwindSections(pint_t targetAddr, (void)info; return true; #elif defined(_LIBUNWIND_USE_DL_UNWIND_FIND_EXIDX) - int length = 0; + int length = 0; info.arm_section = (uintptr_t)dl_unwind_find_exidx((_Unwind_Ptr)targetAddr, &length); info.arm_section_length = (size_t)length * sizeof(EHABIIndexEntry); - if (info.arm_section && info.arm_section_length) - return true; + if (info.arm_section && info.arm_section_length) + return true; #elif defined(_LIBUNWIND_USE_DL_ITERATE_PHDR) - dl_iterate_cb_data cb_data = {this, &info, targetAddr}; + dl_iterate_cb_data cb_data = {this, &info, targetAddr}; int found = dl_iterate_phdr(findUnwindSectionsByPhdr, &cb_data); - return static_cast<bool>(found); -#endif - - return false; -} - - -inline bool LocalAddressSpace::findOtherFDE(pint_t targetAddr, pint_t &fde) { - // TO DO: if OS has way to dynamically register FDEs, check that. - (void)targetAddr; - (void)fde; - return false; -} - -inline bool LocalAddressSpace::findFunctionName(pint_t addr, char *buf, - size_t bufLen, - unw_word_t *offset) { + return static_cast<bool>(found); +#endif + + return false; +} + + +inline bool LocalAddressSpace::findOtherFDE(pint_t targetAddr, pint_t &fde) { + // TO DO: if OS has way to dynamically register FDEs, check that. + (void)targetAddr; + (void)fde; + return false; +} + +inline bool LocalAddressSpace::findFunctionName(pint_t addr, char *buf, + size_t bufLen, + unw_word_t *offset) { #if _LIBUNWIND_USE_DLADDR - Dl_info dyldInfo; - if (dladdr((void *)addr, &dyldInfo)) { - if (dyldInfo.dli_sname != NULL) { - snprintf(buf, bufLen, "%s", dyldInfo.dli_sname); - *offset = (addr - (pint_t) dyldInfo.dli_saddr); - return true; - } - } + Dl_info dyldInfo; + if (dladdr((void *)addr, &dyldInfo)) { + if (dyldInfo.dli_sname != NULL) { + snprintf(buf, bufLen, "%s", dyldInfo.dli_sname); + *offset = (addr - (pint_t) dyldInfo.dli_saddr); + return true; + } + } #else (void)addr; (void)buf; (void)bufLen; (void)offset; -#endif - return false; -} - -} // namespace libunwind - -#endif // __ADDRESSSPACE_HPP__ +#endif + return false; +} + +} // namespace libunwind + +#endif // __ADDRESSSPACE_HPP__ diff --git a/contrib/libs/libunwind/src/CompactUnwinder.hpp b/contrib/libs/libunwind/src/CompactUnwinder.hpp index daa7b0cd15..0b2b5e111b 100644 --- a/contrib/libs/libunwind/src/CompactUnwinder.hpp +++ b/contrib/libs/libunwind/src/CompactUnwinder.hpp @@ -1,697 +1,697 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Does runtime stack unwinding using compact unwind encodings. -// -//===----------------------------------------------------------------------===// - -#ifndef __COMPACT_UNWINDER_HPP__ -#define __COMPACT_UNWINDER_HPP__ - -#include <stdint.h> -#include <stdlib.h> - -#include <libunwind.h> -#include <mach-o/compact_unwind_encoding.h> - -#include "Registers.hpp" - -#define EXTRACT_BITS(value, mask) \ - ((value >> __builtin_ctz(mask)) & (((1 << __builtin_popcount(mask))) - 1)) - -namespace libunwind { - +// +// +// Does runtime stack unwinding using compact unwind encodings. +// +//===----------------------------------------------------------------------===// + +#ifndef __COMPACT_UNWINDER_HPP__ +#define __COMPACT_UNWINDER_HPP__ + +#include <stdint.h> +#include <stdlib.h> + +#include <libunwind.h> +#include <mach-o/compact_unwind_encoding.h> + +#include "Registers.hpp" + +#define EXTRACT_BITS(value, mask) \ + ((value >> __builtin_ctz(mask)) & (((1 << __builtin_popcount(mask))) - 1)) + +namespace libunwind { + #if defined(_LIBUNWIND_TARGET_I386) -/// CompactUnwinder_x86 uses a compact unwind info to virtually "step" (aka -/// unwind) by modifying a Registers_x86 register set -template <typename A> -class CompactUnwinder_x86 { -public: - - static int stepWithCompactEncoding(compact_unwind_encoding_t info, - uint32_t functionStart, A &addressSpace, - Registers_x86 ®isters); - -private: - typename A::pint_t pint_t; - - static void frameUnwind(A &addressSpace, Registers_x86 ®isters); - static void framelessUnwind(A &addressSpace, - typename A::pint_t returnAddressLocation, - Registers_x86 ®isters); - static int - stepWithCompactEncodingEBPFrame(compact_unwind_encoding_t compactEncoding, - uint32_t functionStart, A &addressSpace, - Registers_x86 ®isters); - static int stepWithCompactEncodingFrameless( - compact_unwind_encoding_t compactEncoding, uint32_t functionStart, - A &addressSpace, Registers_x86 ®isters, bool indirectStackSize); -}; - -template <typename A> -int CompactUnwinder_x86<A>::stepWithCompactEncoding( - compact_unwind_encoding_t compactEncoding, uint32_t functionStart, - A &addressSpace, Registers_x86 ®isters) { - switch (compactEncoding & UNWIND_X86_MODE_MASK) { - case UNWIND_X86_MODE_EBP_FRAME: - return stepWithCompactEncodingEBPFrame(compactEncoding, functionStart, - addressSpace, registers); - case UNWIND_X86_MODE_STACK_IMMD: - return stepWithCompactEncodingFrameless(compactEncoding, functionStart, - addressSpace, registers, false); - case UNWIND_X86_MODE_STACK_IND: - return stepWithCompactEncodingFrameless(compactEncoding, functionStart, - addressSpace, registers, true); - } - _LIBUNWIND_ABORT("invalid compact unwind encoding"); -} - -template <typename A> -int CompactUnwinder_x86<A>::stepWithCompactEncodingEBPFrame( - compact_unwind_encoding_t compactEncoding, uint32_t functionStart, - A &addressSpace, Registers_x86 ®isters) { - uint32_t savedRegistersOffset = - EXTRACT_BITS(compactEncoding, UNWIND_X86_EBP_FRAME_OFFSET); - uint32_t savedRegistersLocations = - EXTRACT_BITS(compactEncoding, UNWIND_X86_EBP_FRAME_REGISTERS); - - uint32_t savedRegisters = registers.getEBP() - 4 * savedRegistersOffset; - for (int i = 0; i < 5; ++i) { - switch (savedRegistersLocations & 0x7) { - case UNWIND_X86_REG_NONE: - // no register saved in this slot - break; - case UNWIND_X86_REG_EBX: - registers.setEBX(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_ECX: - registers.setECX(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_EDX: - registers.setEDX(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_EDI: - registers.setEDI(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_ESI: - registers.setESI(addressSpace.get32(savedRegisters)); - break; - default: - (void)functionStart; - _LIBUNWIND_DEBUG_LOG("bad register for EBP frame, encoding=%08X for " +/// CompactUnwinder_x86 uses a compact unwind info to virtually "step" (aka +/// unwind) by modifying a Registers_x86 register set +template <typename A> +class CompactUnwinder_x86 { +public: + + static int stepWithCompactEncoding(compact_unwind_encoding_t info, + uint32_t functionStart, A &addressSpace, + Registers_x86 ®isters); + +private: + typename A::pint_t pint_t; + + static void frameUnwind(A &addressSpace, Registers_x86 ®isters); + static void framelessUnwind(A &addressSpace, + typename A::pint_t returnAddressLocation, + Registers_x86 ®isters); + static int + stepWithCompactEncodingEBPFrame(compact_unwind_encoding_t compactEncoding, + uint32_t functionStart, A &addressSpace, + Registers_x86 ®isters); + static int stepWithCompactEncodingFrameless( + compact_unwind_encoding_t compactEncoding, uint32_t functionStart, + A &addressSpace, Registers_x86 ®isters, bool indirectStackSize); +}; + +template <typename A> +int CompactUnwinder_x86<A>::stepWithCompactEncoding( + compact_unwind_encoding_t compactEncoding, uint32_t functionStart, + A &addressSpace, Registers_x86 ®isters) { + switch (compactEncoding & UNWIND_X86_MODE_MASK) { + case UNWIND_X86_MODE_EBP_FRAME: + return stepWithCompactEncodingEBPFrame(compactEncoding, functionStart, + addressSpace, registers); + case UNWIND_X86_MODE_STACK_IMMD: + return stepWithCompactEncodingFrameless(compactEncoding, functionStart, + addressSpace, registers, false); + case UNWIND_X86_MODE_STACK_IND: + return stepWithCompactEncodingFrameless(compactEncoding, functionStart, + addressSpace, registers, true); + } + _LIBUNWIND_ABORT("invalid compact unwind encoding"); +} + +template <typename A> +int CompactUnwinder_x86<A>::stepWithCompactEncodingEBPFrame( + compact_unwind_encoding_t compactEncoding, uint32_t functionStart, + A &addressSpace, Registers_x86 ®isters) { + uint32_t savedRegistersOffset = + EXTRACT_BITS(compactEncoding, UNWIND_X86_EBP_FRAME_OFFSET); + uint32_t savedRegistersLocations = + EXTRACT_BITS(compactEncoding, UNWIND_X86_EBP_FRAME_REGISTERS); + + uint32_t savedRegisters = registers.getEBP() - 4 * savedRegistersOffset; + for (int i = 0; i < 5; ++i) { + switch (savedRegistersLocations & 0x7) { + case UNWIND_X86_REG_NONE: + // no register saved in this slot + break; + case UNWIND_X86_REG_EBX: + registers.setEBX(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_ECX: + registers.setECX(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_EDX: + registers.setEDX(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_EDI: + registers.setEDI(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_ESI: + registers.setESI(addressSpace.get32(savedRegisters)); + break; + default: + (void)functionStart; + _LIBUNWIND_DEBUG_LOG("bad register for EBP frame, encoding=%08X for " "function starting at 0x%X", - compactEncoding, functionStart); - _LIBUNWIND_ABORT("invalid compact unwind encoding"); - } - savedRegisters += 4; - savedRegistersLocations = (savedRegistersLocations >> 3); - } - frameUnwind(addressSpace, registers); - return UNW_STEP_SUCCESS; -} - -template <typename A> -int CompactUnwinder_x86<A>::stepWithCompactEncodingFrameless( - compact_unwind_encoding_t encoding, uint32_t functionStart, - A &addressSpace, Registers_x86 ®isters, bool indirectStackSize) { - uint32_t stackSizeEncoded = - EXTRACT_BITS(encoding, UNWIND_X86_FRAMELESS_STACK_SIZE); - uint32_t stackAdjust = - EXTRACT_BITS(encoding, UNWIND_X86_FRAMELESS_STACK_ADJUST); - uint32_t regCount = - EXTRACT_BITS(encoding, UNWIND_X86_FRAMELESS_STACK_REG_COUNT); - uint32_t permutation = - EXTRACT_BITS(encoding, UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION); - uint32_t stackSize = stackSizeEncoded * 4; - if (indirectStackSize) { - // stack size is encoded in subl $xxx,%esp instruction - uint32_t subl = addressSpace.get32(functionStart + stackSizeEncoded); - stackSize = subl + 4 * stackAdjust; - } - // decompress permutation - uint32_t permunreg[6]; - switch (regCount) { - case 6: - permunreg[0] = permutation / 120; - permutation -= (permunreg[0] * 120); - permunreg[1] = permutation / 24; - permutation -= (permunreg[1] * 24); - permunreg[2] = permutation / 6; - permutation -= (permunreg[2] * 6); - permunreg[3] = permutation / 2; - permutation -= (permunreg[3] * 2); - permunreg[4] = permutation; - permunreg[5] = 0; - break; - case 5: - permunreg[0] = permutation / 120; - permutation -= (permunreg[0] * 120); - permunreg[1] = permutation / 24; - permutation -= (permunreg[1] * 24); - permunreg[2] = permutation / 6; - permutation -= (permunreg[2] * 6); - permunreg[3] = permutation / 2; - permutation -= (permunreg[3] * 2); - permunreg[4] = permutation; - break; - case 4: - permunreg[0] = permutation / 60; - permutation -= (permunreg[0] * 60); - permunreg[1] = permutation / 12; - permutation -= (permunreg[1] * 12); - permunreg[2] = permutation / 3; - permutation -= (permunreg[2] * 3); - permunreg[3] = permutation; - break; - case 3: - permunreg[0] = permutation / 20; - permutation -= (permunreg[0] * 20); - permunreg[1] = permutation / 4; - permutation -= (permunreg[1] * 4); - permunreg[2] = permutation; - break; - case 2: - permunreg[0] = permutation / 5; - permutation -= (permunreg[0] * 5); - permunreg[1] = permutation; - break; - case 1: - permunreg[0] = permutation; - break; - } - // re-number registers back to standard numbers - int registersSaved[6]; - bool used[7] = { false, false, false, false, false, false, false }; - for (uint32_t i = 0; i < regCount; ++i) { - uint32_t renum = 0; - for (int u = 1; u < 7; ++u) { - if (!used[u]) { - if (renum == permunreg[i]) { - registersSaved[i] = u; - used[u] = true; - break; - } - ++renum; - } - } - } - uint32_t savedRegisters = registers.getSP() + stackSize - 4 - 4 * regCount; - for (uint32_t i = 0; i < regCount; ++i) { - switch (registersSaved[i]) { - case UNWIND_X86_REG_EBX: - registers.setEBX(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_ECX: - registers.setECX(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_EDX: - registers.setEDX(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_EDI: - registers.setEDI(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_ESI: - registers.setESI(addressSpace.get32(savedRegisters)); - break; - case UNWIND_X86_REG_EBP: - registers.setEBP(addressSpace.get32(savedRegisters)); - break; - default: - _LIBUNWIND_DEBUG_LOG("bad register for frameless, encoding=%08X for " + compactEncoding, functionStart); + _LIBUNWIND_ABORT("invalid compact unwind encoding"); + } + savedRegisters += 4; + savedRegistersLocations = (savedRegistersLocations >> 3); + } + frameUnwind(addressSpace, registers); + return UNW_STEP_SUCCESS; +} + +template <typename A> +int CompactUnwinder_x86<A>::stepWithCompactEncodingFrameless( + compact_unwind_encoding_t encoding, uint32_t functionStart, + A &addressSpace, Registers_x86 ®isters, bool indirectStackSize) { + uint32_t stackSizeEncoded = + EXTRACT_BITS(encoding, UNWIND_X86_FRAMELESS_STACK_SIZE); + uint32_t stackAdjust = + EXTRACT_BITS(encoding, UNWIND_X86_FRAMELESS_STACK_ADJUST); + uint32_t regCount = + EXTRACT_BITS(encoding, UNWIND_X86_FRAMELESS_STACK_REG_COUNT); + uint32_t permutation = + EXTRACT_BITS(encoding, UNWIND_X86_FRAMELESS_STACK_REG_PERMUTATION); + uint32_t stackSize = stackSizeEncoded * 4; + if (indirectStackSize) { + // stack size is encoded in subl $xxx,%esp instruction + uint32_t subl = addressSpace.get32(functionStart + stackSizeEncoded); + stackSize = subl + 4 * stackAdjust; + } + // decompress permutation + uint32_t permunreg[6]; + switch (regCount) { + case 6: + permunreg[0] = permutation / 120; + permutation -= (permunreg[0] * 120); + permunreg[1] = permutation / 24; + permutation -= (permunreg[1] * 24); + permunreg[2] = permutation / 6; + permutation -= (permunreg[2] * 6); + permunreg[3] = permutation / 2; + permutation -= (permunreg[3] * 2); + permunreg[4] = permutation; + permunreg[5] = 0; + break; + case 5: + permunreg[0] = permutation / 120; + permutation -= (permunreg[0] * 120); + permunreg[1] = permutation / 24; + permutation -= (permunreg[1] * 24); + permunreg[2] = permutation / 6; + permutation -= (permunreg[2] * 6); + permunreg[3] = permutation / 2; + permutation -= (permunreg[3] * 2); + permunreg[4] = permutation; + break; + case 4: + permunreg[0] = permutation / 60; + permutation -= (permunreg[0] * 60); + permunreg[1] = permutation / 12; + permutation -= (permunreg[1] * 12); + permunreg[2] = permutation / 3; + permutation -= (permunreg[2] * 3); + permunreg[3] = permutation; + break; + case 3: + permunreg[0] = permutation / 20; + permutation -= (permunreg[0] * 20); + permunreg[1] = permutation / 4; + permutation -= (permunreg[1] * 4); + permunreg[2] = permutation; + break; + case 2: + permunreg[0] = permutation / 5; + permutation -= (permunreg[0] * 5); + permunreg[1] = permutation; + break; + case 1: + permunreg[0] = permutation; + break; + } + // re-number registers back to standard numbers + int registersSaved[6]; + bool used[7] = { false, false, false, false, false, false, false }; + for (uint32_t i = 0; i < regCount; ++i) { + uint32_t renum = 0; + for (int u = 1; u < 7; ++u) { + if (!used[u]) { + if (renum == permunreg[i]) { + registersSaved[i] = u; + used[u] = true; + break; + } + ++renum; + } + } + } + uint32_t savedRegisters = registers.getSP() + stackSize - 4 - 4 * regCount; + for (uint32_t i = 0; i < regCount; ++i) { + switch (registersSaved[i]) { + case UNWIND_X86_REG_EBX: + registers.setEBX(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_ECX: + registers.setECX(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_EDX: + registers.setEDX(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_EDI: + registers.setEDI(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_ESI: + registers.setESI(addressSpace.get32(savedRegisters)); + break; + case UNWIND_X86_REG_EBP: + registers.setEBP(addressSpace.get32(savedRegisters)); + break; + default: + _LIBUNWIND_DEBUG_LOG("bad register for frameless, encoding=%08X for " "function starting at 0x%X", - encoding, functionStart); - _LIBUNWIND_ABORT("invalid compact unwind encoding"); - } - savedRegisters += 4; - } - framelessUnwind(addressSpace, savedRegisters, registers); - return UNW_STEP_SUCCESS; -} - - -template <typename A> -void CompactUnwinder_x86<A>::frameUnwind(A &addressSpace, - Registers_x86 ®isters) { - typename A::pint_t bp = registers.getEBP(); - // ebp points to old ebp - registers.setEBP(addressSpace.get32(bp)); - // old esp is ebp less saved ebp and return address - registers.setSP((uint32_t)bp + 8); - // pop return address into eip - registers.setIP(addressSpace.get32(bp + 4)); -} - -template <typename A> -void CompactUnwinder_x86<A>::framelessUnwind( - A &addressSpace, typename A::pint_t returnAddressLocation, - Registers_x86 ®isters) { - // return address is on stack after last saved register - registers.setIP(addressSpace.get32(returnAddressLocation)); - // old esp is before return address - registers.setSP((uint32_t)returnAddressLocation + 4); -} + encoding, functionStart); + _LIBUNWIND_ABORT("invalid compact unwind encoding"); + } + savedRegisters += 4; + } + framelessUnwind(addressSpace, savedRegisters, registers); + return UNW_STEP_SUCCESS; +} + + +template <typename A> +void CompactUnwinder_x86<A>::frameUnwind(A &addressSpace, + Registers_x86 ®isters) { + typename A::pint_t bp = registers.getEBP(); + // ebp points to old ebp + registers.setEBP(addressSpace.get32(bp)); + // old esp is ebp less saved ebp and return address + registers.setSP((uint32_t)bp + 8); + // pop return address into eip + registers.setIP(addressSpace.get32(bp + 4)); +} + +template <typename A> +void CompactUnwinder_x86<A>::framelessUnwind( + A &addressSpace, typename A::pint_t returnAddressLocation, + Registers_x86 ®isters) { + // return address is on stack after last saved register + registers.setIP(addressSpace.get32(returnAddressLocation)); + // old esp is before return address + registers.setSP((uint32_t)returnAddressLocation + 4); +} #endif // _LIBUNWIND_TARGET_I386 - - + + #if defined(_LIBUNWIND_TARGET_X86_64) -/// CompactUnwinder_x86_64 uses a compact unwind info to virtually "step" (aka -/// unwind) by modifying a Registers_x86_64 register set -template <typename A> -class CompactUnwinder_x86_64 { -public: - - static int stepWithCompactEncoding(compact_unwind_encoding_t compactEncoding, - uint64_t functionStart, A &addressSpace, - Registers_x86_64 ®isters); - -private: - typename A::pint_t pint_t; - - static void frameUnwind(A &addressSpace, Registers_x86_64 ®isters); - static void framelessUnwind(A &addressSpace, uint64_t returnAddressLocation, - Registers_x86_64 ®isters); - static int - stepWithCompactEncodingRBPFrame(compact_unwind_encoding_t compactEncoding, - uint64_t functionStart, A &addressSpace, - Registers_x86_64 ®isters); - static int stepWithCompactEncodingFrameless( - compact_unwind_encoding_t compactEncoding, uint64_t functionStart, - A &addressSpace, Registers_x86_64 ®isters, bool indirectStackSize); -}; - -template <typename A> -int CompactUnwinder_x86_64<A>::stepWithCompactEncoding( - compact_unwind_encoding_t compactEncoding, uint64_t functionStart, - A &addressSpace, Registers_x86_64 ®isters) { - switch (compactEncoding & UNWIND_X86_64_MODE_MASK) { - case UNWIND_X86_64_MODE_RBP_FRAME: - return stepWithCompactEncodingRBPFrame(compactEncoding, functionStart, - addressSpace, registers); - case UNWIND_X86_64_MODE_STACK_IMMD: - return stepWithCompactEncodingFrameless(compactEncoding, functionStart, - addressSpace, registers, false); - case UNWIND_X86_64_MODE_STACK_IND: - return stepWithCompactEncodingFrameless(compactEncoding, functionStart, - addressSpace, registers, true); - } - _LIBUNWIND_ABORT("invalid compact unwind encoding"); -} - -template <typename A> -int CompactUnwinder_x86_64<A>::stepWithCompactEncodingRBPFrame( - compact_unwind_encoding_t compactEncoding, uint64_t functionStart, - A &addressSpace, Registers_x86_64 ®isters) { - uint32_t savedRegistersOffset = - EXTRACT_BITS(compactEncoding, UNWIND_X86_64_RBP_FRAME_OFFSET); - uint32_t savedRegistersLocations = - EXTRACT_BITS(compactEncoding, UNWIND_X86_64_RBP_FRAME_REGISTERS); - - uint64_t savedRegisters = registers.getRBP() - 8 * savedRegistersOffset; - for (int i = 0; i < 5; ++i) { - switch (savedRegistersLocations & 0x7) { - case UNWIND_X86_64_REG_NONE: - // no register saved in this slot - break; - case UNWIND_X86_64_REG_RBX: - registers.setRBX(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_R12: - registers.setR12(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_R13: - registers.setR13(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_R14: - registers.setR14(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_R15: - registers.setR15(addressSpace.get64(savedRegisters)); - break; - default: - (void)functionStart; - _LIBUNWIND_DEBUG_LOG("bad register for RBP frame, encoding=%08X for " +/// CompactUnwinder_x86_64 uses a compact unwind info to virtually "step" (aka +/// unwind) by modifying a Registers_x86_64 register set +template <typename A> +class CompactUnwinder_x86_64 { +public: + + static int stepWithCompactEncoding(compact_unwind_encoding_t compactEncoding, + uint64_t functionStart, A &addressSpace, + Registers_x86_64 ®isters); + +private: + typename A::pint_t pint_t; + + static void frameUnwind(A &addressSpace, Registers_x86_64 ®isters); + static void framelessUnwind(A &addressSpace, uint64_t returnAddressLocation, + Registers_x86_64 ®isters); + static int + stepWithCompactEncodingRBPFrame(compact_unwind_encoding_t compactEncoding, + uint64_t functionStart, A &addressSpace, + Registers_x86_64 ®isters); + static int stepWithCompactEncodingFrameless( + compact_unwind_encoding_t compactEncoding, uint64_t functionStart, + A &addressSpace, Registers_x86_64 ®isters, bool indirectStackSize); +}; + +template <typename A> +int CompactUnwinder_x86_64<A>::stepWithCompactEncoding( + compact_unwind_encoding_t compactEncoding, uint64_t functionStart, + A &addressSpace, Registers_x86_64 ®isters) { + switch (compactEncoding & UNWIND_X86_64_MODE_MASK) { + case UNWIND_X86_64_MODE_RBP_FRAME: + return stepWithCompactEncodingRBPFrame(compactEncoding, functionStart, + addressSpace, registers); + case UNWIND_X86_64_MODE_STACK_IMMD: + return stepWithCompactEncodingFrameless(compactEncoding, functionStart, + addressSpace, registers, false); + case UNWIND_X86_64_MODE_STACK_IND: + return stepWithCompactEncodingFrameless(compactEncoding, functionStart, + addressSpace, registers, true); + } + _LIBUNWIND_ABORT("invalid compact unwind encoding"); +} + +template <typename A> +int CompactUnwinder_x86_64<A>::stepWithCompactEncodingRBPFrame( + compact_unwind_encoding_t compactEncoding, uint64_t functionStart, + A &addressSpace, Registers_x86_64 ®isters) { + uint32_t savedRegistersOffset = + EXTRACT_BITS(compactEncoding, UNWIND_X86_64_RBP_FRAME_OFFSET); + uint32_t savedRegistersLocations = + EXTRACT_BITS(compactEncoding, UNWIND_X86_64_RBP_FRAME_REGISTERS); + + uint64_t savedRegisters = registers.getRBP() - 8 * savedRegistersOffset; + for (int i = 0; i < 5; ++i) { + switch (savedRegistersLocations & 0x7) { + case UNWIND_X86_64_REG_NONE: + // no register saved in this slot + break; + case UNWIND_X86_64_REG_RBX: + registers.setRBX(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_R12: + registers.setR12(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_R13: + registers.setR13(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_R14: + registers.setR14(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_R15: + registers.setR15(addressSpace.get64(savedRegisters)); + break; + default: + (void)functionStart; + _LIBUNWIND_DEBUG_LOG("bad register for RBP frame, encoding=%08X for " "function starting at 0x%llX", - compactEncoding, functionStart); - _LIBUNWIND_ABORT("invalid compact unwind encoding"); - } - savedRegisters += 8; - savedRegistersLocations = (savedRegistersLocations >> 3); - } - frameUnwind(addressSpace, registers); - return UNW_STEP_SUCCESS; -} - -template <typename A> -int CompactUnwinder_x86_64<A>::stepWithCompactEncodingFrameless( - compact_unwind_encoding_t encoding, uint64_t functionStart, A &addressSpace, - Registers_x86_64 ®isters, bool indirectStackSize) { - uint32_t stackSizeEncoded = - EXTRACT_BITS(encoding, UNWIND_X86_64_FRAMELESS_STACK_SIZE); - uint32_t stackAdjust = - EXTRACT_BITS(encoding, UNWIND_X86_64_FRAMELESS_STACK_ADJUST); - uint32_t regCount = - EXTRACT_BITS(encoding, UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT); - uint32_t permutation = - EXTRACT_BITS(encoding, UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION); - uint32_t stackSize = stackSizeEncoded * 8; - if (indirectStackSize) { - // stack size is encoded in subl $xxx,%esp instruction - uint32_t subl = addressSpace.get32(functionStart + stackSizeEncoded); - stackSize = subl + 8 * stackAdjust; - } - // decompress permutation - uint32_t permunreg[6]; - switch (regCount) { - case 6: - permunreg[0] = permutation / 120; - permutation -= (permunreg[0] * 120); - permunreg[1] = permutation / 24; - permutation -= (permunreg[1] * 24); - permunreg[2] = permutation / 6; - permutation -= (permunreg[2] * 6); - permunreg[3] = permutation / 2; - permutation -= (permunreg[3] * 2); - permunreg[4] = permutation; - permunreg[5] = 0; - break; - case 5: - permunreg[0] = permutation / 120; - permutation -= (permunreg[0] * 120); - permunreg[1] = permutation / 24; - permutation -= (permunreg[1] * 24); - permunreg[2] = permutation / 6; - permutation -= (permunreg[2] * 6); - permunreg[3] = permutation / 2; - permutation -= (permunreg[3] * 2); - permunreg[4] = permutation; - break; - case 4: - permunreg[0] = permutation / 60; - permutation -= (permunreg[0] * 60); - permunreg[1] = permutation / 12; - permutation -= (permunreg[1] * 12); - permunreg[2] = permutation / 3; - permutation -= (permunreg[2] * 3); - permunreg[3] = permutation; - break; - case 3: - permunreg[0] = permutation / 20; - permutation -= (permunreg[0] * 20); - permunreg[1] = permutation / 4; - permutation -= (permunreg[1] * 4); - permunreg[2] = permutation; - break; - case 2: - permunreg[0] = permutation / 5; - permutation -= (permunreg[0] * 5); - permunreg[1] = permutation; - break; - case 1: - permunreg[0] = permutation; - break; - } - // re-number registers back to standard numbers - int registersSaved[6]; - bool used[7] = { false, false, false, false, false, false, false }; - for (uint32_t i = 0; i < regCount; ++i) { - uint32_t renum = 0; - for (int u = 1; u < 7; ++u) { - if (!used[u]) { - if (renum == permunreg[i]) { - registersSaved[i] = u; - used[u] = true; - break; - } - ++renum; - } - } - } - uint64_t savedRegisters = registers.getSP() + stackSize - 8 - 8 * regCount; - for (uint32_t i = 0; i < regCount; ++i) { - switch (registersSaved[i]) { - case UNWIND_X86_64_REG_RBX: - registers.setRBX(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_R12: - registers.setR12(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_R13: - registers.setR13(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_R14: - registers.setR14(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_R15: - registers.setR15(addressSpace.get64(savedRegisters)); - break; - case UNWIND_X86_64_REG_RBP: - registers.setRBP(addressSpace.get64(savedRegisters)); - break; - default: - _LIBUNWIND_DEBUG_LOG("bad register for frameless, encoding=%08X for " + compactEncoding, functionStart); + _LIBUNWIND_ABORT("invalid compact unwind encoding"); + } + savedRegisters += 8; + savedRegistersLocations = (savedRegistersLocations >> 3); + } + frameUnwind(addressSpace, registers); + return UNW_STEP_SUCCESS; +} + +template <typename A> +int CompactUnwinder_x86_64<A>::stepWithCompactEncodingFrameless( + compact_unwind_encoding_t encoding, uint64_t functionStart, A &addressSpace, + Registers_x86_64 ®isters, bool indirectStackSize) { + uint32_t stackSizeEncoded = + EXTRACT_BITS(encoding, UNWIND_X86_64_FRAMELESS_STACK_SIZE); + uint32_t stackAdjust = + EXTRACT_BITS(encoding, UNWIND_X86_64_FRAMELESS_STACK_ADJUST); + uint32_t regCount = + EXTRACT_BITS(encoding, UNWIND_X86_64_FRAMELESS_STACK_REG_COUNT); + uint32_t permutation = + EXTRACT_BITS(encoding, UNWIND_X86_64_FRAMELESS_STACK_REG_PERMUTATION); + uint32_t stackSize = stackSizeEncoded * 8; + if (indirectStackSize) { + // stack size is encoded in subl $xxx,%esp instruction + uint32_t subl = addressSpace.get32(functionStart + stackSizeEncoded); + stackSize = subl + 8 * stackAdjust; + } + // decompress permutation + uint32_t permunreg[6]; + switch (regCount) { + case 6: + permunreg[0] = permutation / 120; + permutation -= (permunreg[0] * 120); + permunreg[1] = permutation / 24; + permutation -= (permunreg[1] * 24); + permunreg[2] = permutation / 6; + permutation -= (permunreg[2] * 6); + permunreg[3] = permutation / 2; + permutation -= (permunreg[3] * 2); + permunreg[4] = permutation; + permunreg[5] = 0; + break; + case 5: + permunreg[0] = permutation / 120; + permutation -= (permunreg[0] * 120); + permunreg[1] = permutation / 24; + permutation -= (permunreg[1] * 24); + permunreg[2] = permutation / 6; + permutation -= (permunreg[2] * 6); + permunreg[3] = permutation / 2; + permutation -= (permunreg[3] * 2); + permunreg[4] = permutation; + break; + case 4: + permunreg[0] = permutation / 60; + permutation -= (permunreg[0] * 60); + permunreg[1] = permutation / 12; + permutation -= (permunreg[1] * 12); + permunreg[2] = permutation / 3; + permutation -= (permunreg[2] * 3); + permunreg[3] = permutation; + break; + case 3: + permunreg[0] = permutation / 20; + permutation -= (permunreg[0] * 20); + permunreg[1] = permutation / 4; + permutation -= (permunreg[1] * 4); + permunreg[2] = permutation; + break; + case 2: + permunreg[0] = permutation / 5; + permutation -= (permunreg[0] * 5); + permunreg[1] = permutation; + break; + case 1: + permunreg[0] = permutation; + break; + } + // re-number registers back to standard numbers + int registersSaved[6]; + bool used[7] = { false, false, false, false, false, false, false }; + for (uint32_t i = 0; i < regCount; ++i) { + uint32_t renum = 0; + for (int u = 1; u < 7; ++u) { + if (!used[u]) { + if (renum == permunreg[i]) { + registersSaved[i] = u; + used[u] = true; + break; + } + ++renum; + } + } + } + uint64_t savedRegisters = registers.getSP() + stackSize - 8 - 8 * regCount; + for (uint32_t i = 0; i < regCount; ++i) { + switch (registersSaved[i]) { + case UNWIND_X86_64_REG_RBX: + registers.setRBX(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_R12: + registers.setR12(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_R13: + registers.setR13(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_R14: + registers.setR14(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_R15: + registers.setR15(addressSpace.get64(savedRegisters)); + break; + case UNWIND_X86_64_REG_RBP: + registers.setRBP(addressSpace.get64(savedRegisters)); + break; + default: + _LIBUNWIND_DEBUG_LOG("bad register for frameless, encoding=%08X for " "function starting at 0x%llX", - encoding, functionStart); - _LIBUNWIND_ABORT("invalid compact unwind encoding"); - } - savedRegisters += 8; - } - framelessUnwind(addressSpace, savedRegisters, registers); - return UNW_STEP_SUCCESS; -} - - -template <typename A> -void CompactUnwinder_x86_64<A>::frameUnwind(A &addressSpace, - Registers_x86_64 ®isters) { - uint64_t rbp = registers.getRBP(); - // ebp points to old ebp - registers.setRBP(addressSpace.get64(rbp)); - // old esp is ebp less saved ebp and return address - registers.setSP(rbp + 16); - // pop return address into eip - registers.setIP(addressSpace.get64(rbp + 8)); -} - -template <typename A> -void CompactUnwinder_x86_64<A>::framelessUnwind(A &addressSpace, - uint64_t returnAddressLocation, - Registers_x86_64 ®isters) { - // return address is on stack after last saved register - registers.setIP(addressSpace.get64(returnAddressLocation)); - // old esp is before return address - registers.setSP(returnAddressLocation + 8); -} + encoding, functionStart); + _LIBUNWIND_ABORT("invalid compact unwind encoding"); + } + savedRegisters += 8; + } + framelessUnwind(addressSpace, savedRegisters, registers); + return UNW_STEP_SUCCESS; +} + + +template <typename A> +void CompactUnwinder_x86_64<A>::frameUnwind(A &addressSpace, + Registers_x86_64 ®isters) { + uint64_t rbp = registers.getRBP(); + // ebp points to old ebp + registers.setRBP(addressSpace.get64(rbp)); + // old esp is ebp less saved ebp and return address + registers.setSP(rbp + 16); + // pop return address into eip + registers.setIP(addressSpace.get64(rbp + 8)); +} + +template <typename A> +void CompactUnwinder_x86_64<A>::framelessUnwind(A &addressSpace, + uint64_t returnAddressLocation, + Registers_x86_64 ®isters) { + // return address is on stack after last saved register + registers.setIP(addressSpace.get64(returnAddressLocation)); + // old esp is before return address + registers.setSP(returnAddressLocation + 8); +} #endif // _LIBUNWIND_TARGET_X86_64 - - - + + + #if defined(_LIBUNWIND_TARGET_AARCH64) -/// CompactUnwinder_arm64 uses a compact unwind info to virtually "step" (aka -/// unwind) by modifying a Registers_arm64 register set -template <typename A> -class CompactUnwinder_arm64 { -public: - - static int stepWithCompactEncoding(compact_unwind_encoding_t compactEncoding, - uint64_t functionStart, A &addressSpace, - Registers_arm64 ®isters); - -private: - typename A::pint_t pint_t; - - static int - stepWithCompactEncodingFrame(compact_unwind_encoding_t compactEncoding, - uint64_t functionStart, A &addressSpace, - Registers_arm64 ®isters); - static int stepWithCompactEncodingFrameless( - compact_unwind_encoding_t compactEncoding, uint64_t functionStart, - A &addressSpace, Registers_arm64 ®isters); -}; - -template <typename A> -int CompactUnwinder_arm64<A>::stepWithCompactEncoding( - compact_unwind_encoding_t compactEncoding, uint64_t functionStart, - A &addressSpace, Registers_arm64 ®isters) { - switch (compactEncoding & UNWIND_ARM64_MODE_MASK) { - case UNWIND_ARM64_MODE_FRAME: - return stepWithCompactEncodingFrame(compactEncoding, functionStart, - addressSpace, registers); - case UNWIND_ARM64_MODE_FRAMELESS: - return stepWithCompactEncodingFrameless(compactEncoding, functionStart, - addressSpace, registers); - } - _LIBUNWIND_ABORT("invalid compact unwind encoding"); -} - -template <typename A> -int CompactUnwinder_arm64<A>::stepWithCompactEncodingFrameless( - compact_unwind_encoding_t encoding, uint64_t, A &addressSpace, - Registers_arm64 ®isters) { - uint32_t stackSize = - 16 * EXTRACT_BITS(encoding, UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK); - - uint64_t savedRegisterLoc = registers.getSP() + stackSize; - - if (encoding & UNWIND_ARM64_FRAME_X19_X20_PAIR) { +/// CompactUnwinder_arm64 uses a compact unwind info to virtually "step" (aka +/// unwind) by modifying a Registers_arm64 register set +template <typename A> +class CompactUnwinder_arm64 { +public: + + static int stepWithCompactEncoding(compact_unwind_encoding_t compactEncoding, + uint64_t functionStart, A &addressSpace, + Registers_arm64 ®isters); + +private: + typename A::pint_t pint_t; + + static int + stepWithCompactEncodingFrame(compact_unwind_encoding_t compactEncoding, + uint64_t functionStart, A &addressSpace, + Registers_arm64 ®isters); + static int stepWithCompactEncodingFrameless( + compact_unwind_encoding_t compactEncoding, uint64_t functionStart, + A &addressSpace, Registers_arm64 ®isters); +}; + +template <typename A> +int CompactUnwinder_arm64<A>::stepWithCompactEncoding( + compact_unwind_encoding_t compactEncoding, uint64_t functionStart, + A &addressSpace, Registers_arm64 ®isters) { + switch (compactEncoding & UNWIND_ARM64_MODE_MASK) { + case UNWIND_ARM64_MODE_FRAME: + return stepWithCompactEncodingFrame(compactEncoding, functionStart, + addressSpace, registers); + case UNWIND_ARM64_MODE_FRAMELESS: + return stepWithCompactEncodingFrameless(compactEncoding, functionStart, + addressSpace, registers); + } + _LIBUNWIND_ABORT("invalid compact unwind encoding"); +} + +template <typename A> +int CompactUnwinder_arm64<A>::stepWithCompactEncodingFrameless( + compact_unwind_encoding_t encoding, uint64_t, A &addressSpace, + Registers_arm64 ®isters) { + uint32_t stackSize = + 16 * EXTRACT_BITS(encoding, UNWIND_ARM64_FRAMELESS_STACK_SIZE_MASK); + + uint64_t savedRegisterLoc = registers.getSP() + stackSize; + + if (encoding & UNWIND_ARM64_FRAME_X19_X20_PAIR) { registers.setRegister(UNW_AARCH64_X19, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X20, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_X21_X22_PAIR) { + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_X21_X22_PAIR) { registers.setRegister(UNW_AARCH64_X21, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X22, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_X23_X24_PAIR) { + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_X23_X24_PAIR) { registers.setRegister(UNW_AARCH64_X23, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X24, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_X25_X26_PAIR) { + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_X25_X26_PAIR) { registers.setRegister(UNW_AARCH64_X25, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X26, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_X27_X28_PAIR) { + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_X27_X28_PAIR) { registers.setRegister(UNW_AARCH64_X27, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X28, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - - if (encoding & UNWIND_ARM64_FRAME_D8_D9_PAIR) { + savedRegisterLoc -= 8; + } + + if (encoding & UNWIND_ARM64_FRAME_D8_D9_PAIR) { registers.setFloatRegister(UNW_AARCH64_V8, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; registers.setFloatRegister(UNW_AARCH64_V9, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_D10_D11_PAIR) { + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_D10_D11_PAIR) { registers.setFloatRegister(UNW_AARCH64_V10, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; registers.setFloatRegister(UNW_AARCH64_V11, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_D12_D13_PAIR) { + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_D12_D13_PAIR) { registers.setFloatRegister(UNW_AARCH64_V12, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; registers.setFloatRegister(UNW_AARCH64_V13, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_D14_D15_PAIR) { + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_D14_D15_PAIR) { registers.setFloatRegister(UNW_AARCH64_V14, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; registers.setFloatRegister(UNW_AARCH64_V15, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - - // subtract stack size off of sp - registers.setSP(savedRegisterLoc); - - // set pc to be value in lr + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; + } + + // subtract stack size off of sp + registers.setSP(savedRegisterLoc); + + // set pc to be value in lr registers.setIP(registers.getRegister(UNW_AARCH64_LR)); - - return UNW_STEP_SUCCESS; -} - -template <typename A> -int CompactUnwinder_arm64<A>::stepWithCompactEncodingFrame( - compact_unwind_encoding_t encoding, uint64_t, A &addressSpace, - Registers_arm64 ®isters) { - uint64_t savedRegisterLoc = registers.getFP() - 8; - - if (encoding & UNWIND_ARM64_FRAME_X19_X20_PAIR) { + + return UNW_STEP_SUCCESS; +} + +template <typename A> +int CompactUnwinder_arm64<A>::stepWithCompactEncodingFrame( + compact_unwind_encoding_t encoding, uint64_t, A &addressSpace, + Registers_arm64 ®isters) { + uint64_t savedRegisterLoc = registers.getFP() - 8; + + if (encoding & UNWIND_ARM64_FRAME_X19_X20_PAIR) { registers.setRegister(UNW_AARCH64_X19, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X20, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_X21_X22_PAIR) { + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_X21_X22_PAIR) { registers.setRegister(UNW_AARCH64_X21, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X22, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_X23_X24_PAIR) { + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_X23_X24_PAIR) { registers.setRegister(UNW_AARCH64_X23, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X24, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_X25_X26_PAIR) { + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_X25_X26_PAIR) { registers.setRegister(UNW_AARCH64_X25, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X26, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_X27_X28_PAIR) { + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_X27_X28_PAIR) { registers.setRegister(UNW_AARCH64_X27, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; + savedRegisterLoc -= 8; registers.setRegister(UNW_AARCH64_X28, addressSpace.get64(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - - if (encoding & UNWIND_ARM64_FRAME_D8_D9_PAIR) { + savedRegisterLoc -= 8; + } + + if (encoding & UNWIND_ARM64_FRAME_D8_D9_PAIR) { registers.setFloatRegister(UNW_AARCH64_V8, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; registers.setFloatRegister(UNW_AARCH64_V9, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_D10_D11_PAIR) { + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_D10_D11_PAIR) { registers.setFloatRegister(UNW_AARCH64_V10, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; registers.setFloatRegister(UNW_AARCH64_V11, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_D12_D13_PAIR) { + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_D12_D13_PAIR) { registers.setFloatRegister(UNW_AARCH64_V12, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; registers.setFloatRegister(UNW_AARCH64_V13, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - if (encoding & UNWIND_ARM64_FRAME_D14_D15_PAIR) { + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; + } + if (encoding & UNWIND_ARM64_FRAME_D14_D15_PAIR) { registers.setFloatRegister(UNW_AARCH64_V14, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; registers.setFloatRegister(UNW_AARCH64_V15, - addressSpace.getDouble(savedRegisterLoc)); - savedRegisterLoc -= 8; - } - - uint64_t fp = registers.getFP(); - // fp points to old fp - registers.setFP(addressSpace.get64(fp)); - // old sp is fp less saved fp and lr - registers.setSP(fp + 16); - // pop return address into pc - registers.setIP(addressSpace.get64(fp + 8)); - - return UNW_STEP_SUCCESS; -} + addressSpace.getDouble(savedRegisterLoc)); + savedRegisterLoc -= 8; + } + + uint64_t fp = registers.getFP(); + // fp points to old fp + registers.setFP(addressSpace.get64(fp)); + // old sp is fp less saved fp and lr + registers.setSP(fp + 16); + // pop return address into pc + registers.setIP(addressSpace.get64(fp + 8)); + + return UNW_STEP_SUCCESS; +} #endif // _LIBUNWIND_TARGET_AARCH64 - - -} // namespace libunwind - -#endif // __COMPACT_UNWINDER_HPP__ + + +} // namespace libunwind + +#endif // __COMPACT_UNWINDER_HPP__ diff --git a/contrib/libs/libunwind/src/DwarfInstructions.hpp b/contrib/libs/libunwind/src/DwarfInstructions.hpp index 4f61bf739c..c1a241c55c 100644 --- a/contrib/libs/libunwind/src/DwarfInstructions.hpp +++ b/contrib/libs/libunwind/src/DwarfInstructions.hpp @@ -1,79 +1,79 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// +// +// // Processor specific interpretation of DWARF unwind info. -// -//===----------------------------------------------------------------------===// - -#ifndef __DWARF_INSTRUCTIONS_HPP__ -#define __DWARF_INSTRUCTIONS_HPP__ - -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> - -#include "dwarf2.h" -#include "Registers.hpp" -#include "DwarfParser.hpp" -#include "config.h" - - -namespace libunwind { - - +// +//===----------------------------------------------------------------------===// + +#ifndef __DWARF_INSTRUCTIONS_HPP__ +#define __DWARF_INSTRUCTIONS_HPP__ + +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +#include "dwarf2.h" +#include "Registers.hpp" +#include "DwarfParser.hpp" +#include "config.h" + + +namespace libunwind { + + /// DwarfInstructions maps abtract DWARF unwind instructions to a particular -/// architecture -template <typename A, typename R> -class DwarfInstructions { -public: - typedef typename A::pint_t pint_t; - typedef typename A::sint_t sint_t; - - static int stepWithDwarf(A &addressSpace, pint_t pc, pint_t fdeStart, +/// architecture +template <typename A, typename R> +class DwarfInstructions { +public: + typedef typename A::pint_t pint_t; + typedef typename A::sint_t sint_t; + + static int stepWithDwarf(A &addressSpace, pint_t pc, pint_t fdeStart, R ®isters, bool &isSignalFrame); - -private: - - enum { - DW_X86_64_RET_ADDR = 16 - }; - - enum { - DW_X86_RET_ADDR = 8 - }; - - typedef typename CFI_Parser<A>::RegisterLocation RegisterLocation; - typedef typename CFI_Parser<A>::PrologInfo PrologInfo; - typedef typename CFI_Parser<A>::FDE_Info FDE_Info; - typedef typename CFI_Parser<A>::CIE_Info CIE_Info; - - static pint_t evaluateExpression(pint_t expression, A &addressSpace, - const R ®isters, - pint_t initialStackValue); - static pint_t getSavedRegister(A &addressSpace, const R ®isters, - pint_t cfa, const RegisterLocation &savedReg); - static double getSavedFloatRegister(A &addressSpace, const R ®isters, - pint_t cfa, const RegisterLocation &savedReg); - static v128 getSavedVectorRegister(A &addressSpace, const R ®isters, - pint_t cfa, const RegisterLocation &savedReg); - - static pint_t getCFA(A &addressSpace, const PrologInfo &prolog, - const R ®isters) { + +private: + + enum { + DW_X86_64_RET_ADDR = 16 + }; + + enum { + DW_X86_RET_ADDR = 8 + }; + + typedef typename CFI_Parser<A>::RegisterLocation RegisterLocation; + typedef typename CFI_Parser<A>::PrologInfo PrologInfo; + typedef typename CFI_Parser<A>::FDE_Info FDE_Info; + typedef typename CFI_Parser<A>::CIE_Info CIE_Info; + + static pint_t evaluateExpression(pint_t expression, A &addressSpace, + const R ®isters, + pint_t initialStackValue); + static pint_t getSavedRegister(A &addressSpace, const R ®isters, + pint_t cfa, const RegisterLocation &savedReg); + static double getSavedFloatRegister(A &addressSpace, const R ®isters, + pint_t cfa, const RegisterLocation &savedReg); + static v128 getSavedVectorRegister(A &addressSpace, const R ®isters, + pint_t cfa, const RegisterLocation &savedReg); + + static pint_t getCFA(A &addressSpace, const PrologInfo &prolog, + const R ®isters) { if (prolog.cfaRegister != 0) return (pint_t)((sint_t)registers.getRegister((int)prolog.cfaRegister) + - prolog.cfaRegisterOffset); - if (prolog.cfaExpression != 0) - return evaluateExpression((pint_t)prolog.cfaExpression, addressSpace, - registers, 0); - assert(0 && "getCFA(): unknown location"); - __builtin_unreachable(); - } -}; - + prolog.cfaRegisterOffset); + if (prolog.cfaExpression != 0) + return evaluateExpression((pint_t)prolog.cfaExpression, addressSpace, + registers, 0); + assert(0 && "getCFA(): unknown location"); + __builtin_unreachable(); + } +}; + template <typename R> auto getSparcWCookie(const R &r, int) -> decltype(r.getWCookie()) { return r.getWCookie(); @@ -81,108 +81,108 @@ auto getSparcWCookie(const R &r, int) -> decltype(r.getWCookie()) { template <typename R> uint64_t getSparcWCookie(const R &, long) { return 0; } - -template <typename A, typename R> -typename A::pint_t DwarfInstructions<A, R>::getSavedRegister( - A &addressSpace, const R ®isters, pint_t cfa, - const RegisterLocation &savedReg) { - switch (savedReg.location) { - case CFI_Parser<A>::kRegisterInCFA: + +template <typename A, typename R> +typename A::pint_t DwarfInstructions<A, R>::getSavedRegister( + A &addressSpace, const R ®isters, pint_t cfa, + const RegisterLocation &savedReg) { + switch (savedReg.location) { + case CFI_Parser<A>::kRegisterInCFA: return (pint_t)addressSpace.getRegister(cfa + (pint_t)savedReg.value); - + case CFI_Parser<A>::kRegisterInCFADecrypt: // sparc64 specific return addressSpace.getP(cfa + (pint_t)savedReg.value) ^ getSparcWCookie(registers, 0); - case CFI_Parser<A>::kRegisterAtExpression: + case CFI_Parser<A>::kRegisterAtExpression: return (pint_t)addressSpace.getRegister(evaluateExpression( (pint_t)savedReg.value, addressSpace, registers, cfa)); - - case CFI_Parser<A>::kRegisterIsExpression: - return evaluateExpression((pint_t)savedReg.value, addressSpace, - registers, cfa); - - case CFI_Parser<A>::kRegisterInRegister: - return registers.getRegister((int)savedReg.value); + + case CFI_Parser<A>::kRegisterIsExpression: + return evaluateExpression((pint_t)savedReg.value, addressSpace, + registers, cfa); + + case CFI_Parser<A>::kRegisterInRegister: + return registers.getRegister((int)savedReg.value); case CFI_Parser<A>::kRegisterUndefined: return 0; - case CFI_Parser<A>::kRegisterUnused: - case CFI_Parser<A>::kRegisterOffsetFromCFA: - // FIX ME - break; - } - _LIBUNWIND_ABORT("unsupported restore location for register"); -} - -template <typename A, typename R> -double DwarfInstructions<A, R>::getSavedFloatRegister( - A &addressSpace, const R ®isters, pint_t cfa, - const RegisterLocation &savedReg) { - switch (savedReg.location) { - case CFI_Parser<A>::kRegisterInCFA: - return addressSpace.getDouble(cfa + (pint_t)savedReg.value); - - case CFI_Parser<A>::kRegisterAtExpression: - return addressSpace.getDouble( - evaluateExpression((pint_t)savedReg.value, addressSpace, - registers, cfa)); + case CFI_Parser<A>::kRegisterUnused: + case CFI_Parser<A>::kRegisterOffsetFromCFA: + // FIX ME + break; + } + _LIBUNWIND_ABORT("unsupported restore location for register"); +} + +template <typename A, typename R> +double DwarfInstructions<A, R>::getSavedFloatRegister( + A &addressSpace, const R ®isters, pint_t cfa, + const RegisterLocation &savedReg) { + switch (savedReg.location) { + case CFI_Parser<A>::kRegisterInCFA: + return addressSpace.getDouble(cfa + (pint_t)savedReg.value); + + case CFI_Parser<A>::kRegisterAtExpression: + return addressSpace.getDouble( + evaluateExpression((pint_t)savedReg.value, addressSpace, + registers, cfa)); case CFI_Parser<A>::kRegisterUndefined: return 0.0; case CFI_Parser<A>::kRegisterInRegister: #ifndef _LIBUNWIND_TARGET_ARM return registers.getFloatRegister((int)savedReg.value); #endif - case CFI_Parser<A>::kRegisterIsExpression: - case CFI_Parser<A>::kRegisterUnused: - case CFI_Parser<A>::kRegisterOffsetFromCFA: + case CFI_Parser<A>::kRegisterIsExpression: + case CFI_Parser<A>::kRegisterUnused: + case CFI_Parser<A>::kRegisterOffsetFromCFA: case CFI_Parser<A>::kRegisterInCFADecrypt: - // FIX ME - break; - } - _LIBUNWIND_ABORT("unsupported restore location for float register"); -} - -template <typename A, typename R> -v128 DwarfInstructions<A, R>::getSavedVectorRegister( - A &addressSpace, const R ®isters, pint_t cfa, - const RegisterLocation &savedReg) { - switch (savedReg.location) { - case CFI_Parser<A>::kRegisterInCFA: - return addressSpace.getVector(cfa + (pint_t)savedReg.value); - - case CFI_Parser<A>::kRegisterAtExpression: - return addressSpace.getVector( - evaluateExpression((pint_t)savedReg.value, addressSpace, - registers, cfa)); - - case CFI_Parser<A>::kRegisterIsExpression: - case CFI_Parser<A>::kRegisterUnused: + // FIX ME + break; + } + _LIBUNWIND_ABORT("unsupported restore location for float register"); +} + +template <typename A, typename R> +v128 DwarfInstructions<A, R>::getSavedVectorRegister( + A &addressSpace, const R ®isters, pint_t cfa, + const RegisterLocation &savedReg) { + switch (savedReg.location) { + case CFI_Parser<A>::kRegisterInCFA: + return addressSpace.getVector(cfa + (pint_t)savedReg.value); + + case CFI_Parser<A>::kRegisterAtExpression: + return addressSpace.getVector( + evaluateExpression((pint_t)savedReg.value, addressSpace, + registers, cfa)); + + case CFI_Parser<A>::kRegisterIsExpression: + case CFI_Parser<A>::kRegisterUnused: case CFI_Parser<A>::kRegisterUndefined: - case CFI_Parser<A>::kRegisterOffsetFromCFA: - case CFI_Parser<A>::kRegisterInRegister: + case CFI_Parser<A>::kRegisterOffsetFromCFA: + case CFI_Parser<A>::kRegisterInRegister: case CFI_Parser<A>::kRegisterInCFADecrypt: - // FIX ME - break; - } - _LIBUNWIND_ABORT("unsupported restore location for vector register"); -} - -template <typename A, typename R> -int DwarfInstructions<A, R>::stepWithDwarf(A &addressSpace, pint_t pc, + // FIX ME + break; + } + _LIBUNWIND_ABORT("unsupported restore location for vector register"); +} + +template <typename A, typename R> +int DwarfInstructions<A, R>::stepWithDwarf(A &addressSpace, pint_t pc, pint_t fdeStart, R ®isters, bool &isSignalFrame) { - FDE_Info fdeInfo; - CIE_Info cieInfo; - if (CFI_Parser<A>::decodeFDE(addressSpace, fdeStart, &fdeInfo, - &cieInfo) == NULL) { - PrologInfo prolog; - if (CFI_Parser<A>::parseFDEInstructions(addressSpace, fdeInfo, cieInfo, pc, + FDE_Info fdeInfo; + CIE_Info cieInfo; + if (CFI_Parser<A>::decodeFDE(addressSpace, fdeStart, &fdeInfo, + &cieInfo) == NULL) { + PrologInfo prolog; + if (CFI_Parser<A>::parseFDEInstructions(addressSpace, fdeInfo, cieInfo, pc, R::getArch(), &prolog)) { - // get pointer to cfa (architecture specific) - pint_t cfa = getCFA(addressSpace, prolog, registers); - + // get pointer to cfa (architecture specific) + pint_t cfa = getCFA(addressSpace, prolog, registers); + // restore registers that DWARF says were saved - R newRegisters = registers; + R newRegisters = registers; // Typically, the CFA is the stack pointer at the call site in // the previous frame. However, there are scenarios in which this is not @@ -193,39 +193,39 @@ int DwarfInstructions<A, R>::stepWithDwarf(A &addressSpace, pint_t pc, // by a CFI directive later on. newRegisters.setSP(cfa); - pint_t returnAddress = 0; - const int lastReg = R::lastDwarfRegNum(); + pint_t returnAddress = 0; + const int lastReg = R::lastDwarfRegNum(); assert(static_cast<int>(CFI_Parser<A>::kMaxRegisterNumber) >= lastReg && - "register range too large"); - assert(lastReg >= (int)cieInfo.returnAddressRegister && - "register range does not contain return address register"); - for (int i = 0; i <= lastReg; ++i) { - if (prolog.savedRegisters[i].location != - CFI_Parser<A>::kRegisterUnused) { - if (registers.validFloatRegister(i)) - newRegisters.setFloatRegister( - i, getSavedFloatRegister(addressSpace, registers, cfa, - prolog.savedRegisters[i])); - else if (registers.validVectorRegister(i)) - newRegisters.setVectorRegister( - i, getSavedVectorRegister(addressSpace, registers, cfa, - prolog.savedRegisters[i])); - else if (i == (int)cieInfo.returnAddressRegister) - returnAddress = getSavedRegister(addressSpace, registers, cfa, - prolog.savedRegisters[i]); - else if (registers.validRegister(i)) - newRegisters.setRegister( - i, getSavedRegister(addressSpace, registers, cfa, - prolog.savedRegisters[i])); - else - return UNW_EBADREG; + "register range too large"); + assert(lastReg >= (int)cieInfo.returnAddressRegister && + "register range does not contain return address register"); + for (int i = 0; i <= lastReg; ++i) { + if (prolog.savedRegisters[i].location != + CFI_Parser<A>::kRegisterUnused) { + if (registers.validFloatRegister(i)) + newRegisters.setFloatRegister( + i, getSavedFloatRegister(addressSpace, registers, cfa, + prolog.savedRegisters[i])); + else if (registers.validVectorRegister(i)) + newRegisters.setVectorRegister( + i, getSavedVectorRegister(addressSpace, registers, cfa, + prolog.savedRegisters[i])); + else if (i == (int)cieInfo.returnAddressRegister) + returnAddress = getSavedRegister(addressSpace, registers, cfa, + prolog.savedRegisters[i]); + else if (registers.validRegister(i)) + newRegisters.setRegister( + i, getSavedRegister(addressSpace, registers, cfa, + prolog.savedRegisters[i])); + else + return UNW_EBADREG; } else if (i == (int)cieInfo.returnAddressRegister) { // Leaf function keeps the return address in register and there is no // explicit intructions how to restore it. returnAddress = registers.getRegister(cieInfo.returnAddressRegister); - } - } - + } + } + isSignalFrame = cieInfo.isSignalFrame; #if defined(_LIBUNWIND_TARGET_AARCH64) @@ -310,562 +310,562 @@ int DwarfInstructions<A, R>::stepWithDwarf(A &addressSpace, pint_t pc, } #endif - // Return address is address after call site instruction, so setting IP to - // that does simualates a return. - newRegisters.setIP(returnAddress); - - // Simulate the step by replacing the register set with the new ones. - registers = newRegisters; - - return UNW_STEP_SUCCESS; - } - } - return UNW_EBADFRAME; -} - -template <typename A, typename R> -typename A::pint_t -DwarfInstructions<A, R>::evaluateExpression(pint_t expression, A &addressSpace, - const R ®isters, - pint_t initialStackValue) { - const bool log = false; - pint_t p = expression; - pint_t expressionEnd = expression + 20; // temp, until len read - pint_t length = (pint_t)addressSpace.getULEB128(p, expressionEnd); - expressionEnd = p + length; - if (log) - fprintf(stderr, "evaluateExpression(): length=%" PRIu64 "\n", - (uint64_t)length); - pint_t stack[100]; - pint_t *sp = stack; - *(++sp) = initialStackValue; - - while (p < expressionEnd) { - if (log) { - for (pint_t *t = sp; t > stack; --t) { - fprintf(stderr, "sp[] = 0x%" PRIx64 "\n", (uint64_t)(*t)); - } - } - uint8_t opcode = addressSpace.get8(p++); - sint_t svalue, svalue2; - pint_t value; - uint32_t reg; - switch (opcode) { - case DW_OP_addr: - // push immediate address sized value - value = addressSpace.getP(p); - p += sizeof(pint_t); - *(++sp) = value; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_deref: - // pop stack, dereference, push result - value = *sp--; - *(++sp) = addressSpace.getP(value); - if (log) - fprintf(stderr, "dereference 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_const1u: - // push immediate 1 byte value - value = addressSpace.get8(p); - p += 1; - *(++sp) = value; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_const1s: - // push immediate 1 byte signed value - svalue = (int8_t) addressSpace.get8(p); - p += 1; - *(++sp) = (pint_t)svalue; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)svalue); - break; - - case DW_OP_const2u: - // push immediate 2 byte value - value = addressSpace.get16(p); - p += 2; - *(++sp) = value; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_const2s: - // push immediate 2 byte signed value - svalue = (int16_t) addressSpace.get16(p); - p += 2; - *(++sp) = (pint_t)svalue; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)svalue); - break; - - case DW_OP_const4u: - // push immediate 4 byte value - value = addressSpace.get32(p); - p += 4; - *(++sp) = value; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_const4s: - // push immediate 4 byte signed value - svalue = (int32_t)addressSpace.get32(p); - p += 4; - *(++sp) = (pint_t)svalue; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)svalue); - break; - - case DW_OP_const8u: - // push immediate 8 byte value - value = (pint_t)addressSpace.get64(p); - p += 8; - *(++sp) = value; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_const8s: - // push immediate 8 byte signed value - value = (pint_t)addressSpace.get64(p); - p += 8; - *(++sp) = value; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_constu: - // push immediate ULEB128 value - value = (pint_t)addressSpace.getULEB128(p, expressionEnd); - *(++sp) = value; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_consts: - // push immediate SLEB128 value - svalue = (sint_t)addressSpace.getSLEB128(p, expressionEnd); - *(++sp) = (pint_t)svalue; - if (log) - fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)svalue); - break; - - case DW_OP_dup: - // push top of stack - value = *sp; - *(++sp) = value; - if (log) - fprintf(stderr, "duplicate top of stack\n"); - break; - - case DW_OP_drop: - // pop - --sp; - if (log) - fprintf(stderr, "pop top of stack\n"); - break; - - case DW_OP_over: - // dup second - value = sp[-1]; - *(++sp) = value; - if (log) - fprintf(stderr, "duplicate second in stack\n"); - break; - - case DW_OP_pick: - // pick from - reg = addressSpace.get8(p); - p += 1; + // Return address is address after call site instruction, so setting IP to + // that does simualates a return. + newRegisters.setIP(returnAddress); + + // Simulate the step by replacing the register set with the new ones. + registers = newRegisters; + + return UNW_STEP_SUCCESS; + } + } + return UNW_EBADFRAME; +} + +template <typename A, typename R> +typename A::pint_t +DwarfInstructions<A, R>::evaluateExpression(pint_t expression, A &addressSpace, + const R ®isters, + pint_t initialStackValue) { + const bool log = false; + pint_t p = expression; + pint_t expressionEnd = expression + 20; // temp, until len read + pint_t length = (pint_t)addressSpace.getULEB128(p, expressionEnd); + expressionEnd = p + length; + if (log) + fprintf(stderr, "evaluateExpression(): length=%" PRIu64 "\n", + (uint64_t)length); + pint_t stack[100]; + pint_t *sp = stack; + *(++sp) = initialStackValue; + + while (p < expressionEnd) { + if (log) { + for (pint_t *t = sp; t > stack; --t) { + fprintf(stderr, "sp[] = 0x%" PRIx64 "\n", (uint64_t)(*t)); + } + } + uint8_t opcode = addressSpace.get8(p++); + sint_t svalue, svalue2; + pint_t value; + uint32_t reg; + switch (opcode) { + case DW_OP_addr: + // push immediate address sized value + value = addressSpace.getP(p); + p += sizeof(pint_t); + *(++sp) = value; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_deref: + // pop stack, dereference, push result + value = *sp--; + *(++sp) = addressSpace.getP(value); + if (log) + fprintf(stderr, "dereference 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_const1u: + // push immediate 1 byte value + value = addressSpace.get8(p); + p += 1; + *(++sp) = value; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_const1s: + // push immediate 1 byte signed value + svalue = (int8_t) addressSpace.get8(p); + p += 1; + *(++sp) = (pint_t)svalue; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)svalue); + break; + + case DW_OP_const2u: + // push immediate 2 byte value + value = addressSpace.get16(p); + p += 2; + *(++sp) = value; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_const2s: + // push immediate 2 byte signed value + svalue = (int16_t) addressSpace.get16(p); + p += 2; + *(++sp) = (pint_t)svalue; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)svalue); + break; + + case DW_OP_const4u: + // push immediate 4 byte value + value = addressSpace.get32(p); + p += 4; + *(++sp) = value; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_const4s: + // push immediate 4 byte signed value + svalue = (int32_t)addressSpace.get32(p); + p += 4; + *(++sp) = (pint_t)svalue; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)svalue); + break; + + case DW_OP_const8u: + // push immediate 8 byte value + value = (pint_t)addressSpace.get64(p); + p += 8; + *(++sp) = value; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_const8s: + // push immediate 8 byte signed value + value = (pint_t)addressSpace.get64(p); + p += 8; + *(++sp) = value; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_constu: + // push immediate ULEB128 value + value = (pint_t)addressSpace.getULEB128(p, expressionEnd); + *(++sp) = value; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_consts: + // push immediate SLEB128 value + svalue = (sint_t)addressSpace.getSLEB128(p, expressionEnd); + *(++sp) = (pint_t)svalue; + if (log) + fprintf(stderr, "push 0x%" PRIx64 "\n", (uint64_t)svalue); + break; + + case DW_OP_dup: + // push top of stack + value = *sp; + *(++sp) = value; + if (log) + fprintf(stderr, "duplicate top of stack\n"); + break; + + case DW_OP_drop: + // pop + --sp; + if (log) + fprintf(stderr, "pop top of stack\n"); + break; + + case DW_OP_over: + // dup second + value = sp[-1]; + *(++sp) = value; + if (log) + fprintf(stderr, "duplicate second in stack\n"); + break; + + case DW_OP_pick: + // pick from + reg = addressSpace.get8(p); + p += 1; value = sp[-(int)reg]; - *(++sp) = value; - if (log) - fprintf(stderr, "duplicate %d in stack\n", reg); - break; - - case DW_OP_swap: - // swap top two - value = sp[0]; - sp[0] = sp[-1]; - sp[-1] = value; - if (log) - fprintf(stderr, "swap top of stack\n"); - break; - - case DW_OP_rot: - // rotate top three - value = sp[0]; - sp[0] = sp[-1]; - sp[-1] = sp[-2]; - sp[-2] = value; - if (log) - fprintf(stderr, "rotate top three of stack\n"); - break; - - case DW_OP_xderef: - // pop stack, dereference, push result - value = *sp--; - *sp = *((pint_t*)value); - if (log) - fprintf(stderr, "x-dereference 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_abs: - svalue = (sint_t)*sp; - if (svalue < 0) - *sp = (pint_t)(-svalue); - if (log) - fprintf(stderr, "abs\n"); - break; - - case DW_OP_and: - value = *sp--; - *sp &= value; - if (log) - fprintf(stderr, "and\n"); - break; - - case DW_OP_div: - svalue = (sint_t)(*sp--); - svalue2 = (sint_t)*sp; - *sp = (pint_t)(svalue2 / svalue); - if (log) - fprintf(stderr, "div\n"); - break; - - case DW_OP_minus: - value = *sp--; - *sp = *sp - value; - if (log) - fprintf(stderr, "minus\n"); - break; - - case DW_OP_mod: - svalue = (sint_t)(*sp--); - svalue2 = (sint_t)*sp; - *sp = (pint_t)(svalue2 % svalue); - if (log) - fprintf(stderr, "module\n"); - break; - - case DW_OP_mul: - svalue = (sint_t)(*sp--); - svalue2 = (sint_t)*sp; - *sp = (pint_t)(svalue2 * svalue); - if (log) - fprintf(stderr, "mul\n"); - break; - - case DW_OP_neg: - *sp = 0 - *sp; - if (log) - fprintf(stderr, "neg\n"); - break; - - case DW_OP_not: - svalue = (sint_t)(*sp); - *sp = (pint_t)(~svalue); - if (log) - fprintf(stderr, "not\n"); - break; - - case DW_OP_or: - value = *sp--; - *sp |= value; - if (log) - fprintf(stderr, "or\n"); - break; - - case DW_OP_plus: - value = *sp--; - *sp += value; - if (log) - fprintf(stderr, "plus\n"); - break; - - case DW_OP_plus_uconst: - // pop stack, add uelb128 constant, push result + *(++sp) = value; + if (log) + fprintf(stderr, "duplicate %d in stack\n", reg); + break; + + case DW_OP_swap: + // swap top two + value = sp[0]; + sp[0] = sp[-1]; + sp[-1] = value; + if (log) + fprintf(stderr, "swap top of stack\n"); + break; + + case DW_OP_rot: + // rotate top three + value = sp[0]; + sp[0] = sp[-1]; + sp[-1] = sp[-2]; + sp[-2] = value; + if (log) + fprintf(stderr, "rotate top three of stack\n"); + break; + + case DW_OP_xderef: + // pop stack, dereference, push result + value = *sp--; + *sp = *((pint_t*)value); + if (log) + fprintf(stderr, "x-dereference 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_abs: + svalue = (sint_t)*sp; + if (svalue < 0) + *sp = (pint_t)(-svalue); + if (log) + fprintf(stderr, "abs\n"); + break; + + case DW_OP_and: + value = *sp--; + *sp &= value; + if (log) + fprintf(stderr, "and\n"); + break; + + case DW_OP_div: + svalue = (sint_t)(*sp--); + svalue2 = (sint_t)*sp; + *sp = (pint_t)(svalue2 / svalue); + if (log) + fprintf(stderr, "div\n"); + break; + + case DW_OP_minus: + value = *sp--; + *sp = *sp - value; + if (log) + fprintf(stderr, "minus\n"); + break; + + case DW_OP_mod: + svalue = (sint_t)(*sp--); + svalue2 = (sint_t)*sp; + *sp = (pint_t)(svalue2 % svalue); + if (log) + fprintf(stderr, "module\n"); + break; + + case DW_OP_mul: + svalue = (sint_t)(*sp--); + svalue2 = (sint_t)*sp; + *sp = (pint_t)(svalue2 * svalue); + if (log) + fprintf(stderr, "mul\n"); + break; + + case DW_OP_neg: + *sp = 0 - *sp; + if (log) + fprintf(stderr, "neg\n"); + break; + + case DW_OP_not: + svalue = (sint_t)(*sp); + *sp = (pint_t)(~svalue); + if (log) + fprintf(stderr, "not\n"); + break; + + case DW_OP_or: + value = *sp--; + *sp |= value; + if (log) + fprintf(stderr, "or\n"); + break; + + case DW_OP_plus: + value = *sp--; + *sp += value; + if (log) + fprintf(stderr, "plus\n"); + break; + + case DW_OP_plus_uconst: + // pop stack, add uelb128 constant, push result *sp += static_cast<pint_t>(addressSpace.getULEB128(p, expressionEnd)); - if (log) - fprintf(stderr, "add constant\n"); - break; - - case DW_OP_shl: - value = *sp--; - *sp = *sp << value; - if (log) - fprintf(stderr, "shift left\n"); - break; - - case DW_OP_shr: - value = *sp--; - *sp = *sp >> value; - if (log) - fprintf(stderr, "shift left\n"); - break; - - case DW_OP_shra: - value = *sp--; - svalue = (sint_t)*sp; - *sp = (pint_t)(svalue >> value); - if (log) - fprintf(stderr, "shift left arithmetric\n"); - break; - - case DW_OP_xor: - value = *sp--; - *sp ^= value; - if (log) - fprintf(stderr, "xor\n"); - break; - - case DW_OP_skip: - svalue = (int16_t) addressSpace.get16(p); - p += 2; - p = (pint_t)((sint_t)p + svalue); - if (log) - fprintf(stderr, "skip %" PRIu64 "\n", (uint64_t)svalue); - break; - - case DW_OP_bra: - svalue = (int16_t) addressSpace.get16(p); - p += 2; - if (*sp--) - p = (pint_t)((sint_t)p + svalue); - if (log) - fprintf(stderr, "bra %" PRIu64 "\n", (uint64_t)svalue); - break; - - case DW_OP_eq: - value = *sp--; - *sp = (*sp == value); - if (log) - fprintf(stderr, "eq\n"); - break; - - case DW_OP_ge: - value = *sp--; - *sp = (*sp >= value); - if (log) - fprintf(stderr, "ge\n"); - break; - - case DW_OP_gt: - value = *sp--; - *sp = (*sp > value); - if (log) - fprintf(stderr, "gt\n"); - break; - - case DW_OP_le: - value = *sp--; - *sp = (*sp <= value); - if (log) - fprintf(stderr, "le\n"); - break; - - case DW_OP_lt: - value = *sp--; - *sp = (*sp < value); - if (log) - fprintf(stderr, "lt\n"); - break; - - case DW_OP_ne: - value = *sp--; - *sp = (*sp != value); - if (log) - fprintf(stderr, "ne\n"); - break; - - case DW_OP_lit0: - case DW_OP_lit1: - case DW_OP_lit2: - case DW_OP_lit3: - case DW_OP_lit4: - case DW_OP_lit5: - case DW_OP_lit6: - case DW_OP_lit7: - case DW_OP_lit8: - case DW_OP_lit9: - case DW_OP_lit10: - case DW_OP_lit11: - case DW_OP_lit12: - case DW_OP_lit13: - case DW_OP_lit14: - case DW_OP_lit15: - case DW_OP_lit16: - case DW_OP_lit17: - case DW_OP_lit18: - case DW_OP_lit19: - case DW_OP_lit20: - case DW_OP_lit21: - case DW_OP_lit22: - case DW_OP_lit23: - case DW_OP_lit24: - case DW_OP_lit25: - case DW_OP_lit26: - case DW_OP_lit27: - case DW_OP_lit28: - case DW_OP_lit29: - case DW_OP_lit30: - case DW_OP_lit31: - value = static_cast<pint_t>(opcode - DW_OP_lit0); - *(++sp) = value; - if (log) - fprintf(stderr, "push literal 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_reg0: - case DW_OP_reg1: - case DW_OP_reg2: - case DW_OP_reg3: - case DW_OP_reg4: - case DW_OP_reg5: - case DW_OP_reg6: - case DW_OP_reg7: - case DW_OP_reg8: - case DW_OP_reg9: - case DW_OP_reg10: - case DW_OP_reg11: - case DW_OP_reg12: - case DW_OP_reg13: - case DW_OP_reg14: - case DW_OP_reg15: - case DW_OP_reg16: - case DW_OP_reg17: - case DW_OP_reg18: - case DW_OP_reg19: - case DW_OP_reg20: - case DW_OP_reg21: - case DW_OP_reg22: - case DW_OP_reg23: - case DW_OP_reg24: - case DW_OP_reg25: - case DW_OP_reg26: - case DW_OP_reg27: - case DW_OP_reg28: - case DW_OP_reg29: - case DW_OP_reg30: - case DW_OP_reg31: - reg = static_cast<uint32_t>(opcode - DW_OP_reg0); - *(++sp) = registers.getRegister((int)reg); - if (log) - fprintf(stderr, "push reg %d\n", reg); - break; - - case DW_OP_regx: - reg = static_cast<uint32_t>(addressSpace.getULEB128(p, expressionEnd)); - *(++sp) = registers.getRegister((int)reg); - if (log) - fprintf(stderr, "push reg %d + 0x%" PRIx64 "\n", reg, (uint64_t)svalue); - break; - - case DW_OP_breg0: - case DW_OP_breg1: - case DW_OP_breg2: - case DW_OP_breg3: - case DW_OP_breg4: - case DW_OP_breg5: - case DW_OP_breg6: - case DW_OP_breg7: - case DW_OP_breg8: - case DW_OP_breg9: - case DW_OP_breg10: - case DW_OP_breg11: - case DW_OP_breg12: - case DW_OP_breg13: - case DW_OP_breg14: - case DW_OP_breg15: - case DW_OP_breg16: - case DW_OP_breg17: - case DW_OP_breg18: - case DW_OP_breg19: - case DW_OP_breg20: - case DW_OP_breg21: - case DW_OP_breg22: - case DW_OP_breg23: - case DW_OP_breg24: - case DW_OP_breg25: - case DW_OP_breg26: - case DW_OP_breg27: - case DW_OP_breg28: - case DW_OP_breg29: - case DW_OP_breg30: - case DW_OP_breg31: - reg = static_cast<uint32_t>(opcode - DW_OP_breg0); - svalue = (sint_t)addressSpace.getSLEB128(p, expressionEnd); - svalue += static_cast<sint_t>(registers.getRegister((int)reg)); - *(++sp) = (pint_t)(svalue); - if (log) - fprintf(stderr, "push reg %d + 0x%" PRIx64 "\n", reg, (uint64_t)svalue); - break; - - case DW_OP_bregx: - reg = static_cast<uint32_t>(addressSpace.getULEB128(p, expressionEnd)); - svalue = (sint_t)addressSpace.getSLEB128(p, expressionEnd); - svalue += static_cast<sint_t>(registers.getRegister((int)reg)); - *(++sp) = (pint_t)(svalue); - if (log) - fprintf(stderr, "push reg %d + 0x%" PRIx64 "\n", reg, (uint64_t)svalue); - break; - - case DW_OP_fbreg: - _LIBUNWIND_ABORT("DW_OP_fbreg not implemented"); - break; - - case DW_OP_piece: - _LIBUNWIND_ABORT("DW_OP_piece not implemented"); - break; - - case DW_OP_deref_size: - // pop stack, dereference, push result - value = *sp--; - switch (addressSpace.get8(p++)) { - case 1: - value = addressSpace.get8(value); - break; - case 2: - value = addressSpace.get16(value); - break; - case 4: - value = addressSpace.get32(value); - break; - case 8: - value = (pint_t)addressSpace.get64(value); - break; - default: - _LIBUNWIND_ABORT("DW_OP_deref_size with bad size"); - } - *(++sp) = value; - if (log) - fprintf(stderr, "sized dereference 0x%" PRIx64 "\n", (uint64_t)value); - break; - - case DW_OP_xderef_size: - case DW_OP_nop: - case DW_OP_push_object_addres: - case DW_OP_call2: - case DW_OP_call4: - case DW_OP_call_ref: - default: + if (log) + fprintf(stderr, "add constant\n"); + break; + + case DW_OP_shl: + value = *sp--; + *sp = *sp << value; + if (log) + fprintf(stderr, "shift left\n"); + break; + + case DW_OP_shr: + value = *sp--; + *sp = *sp >> value; + if (log) + fprintf(stderr, "shift left\n"); + break; + + case DW_OP_shra: + value = *sp--; + svalue = (sint_t)*sp; + *sp = (pint_t)(svalue >> value); + if (log) + fprintf(stderr, "shift left arithmetric\n"); + break; + + case DW_OP_xor: + value = *sp--; + *sp ^= value; + if (log) + fprintf(stderr, "xor\n"); + break; + + case DW_OP_skip: + svalue = (int16_t) addressSpace.get16(p); + p += 2; + p = (pint_t)((sint_t)p + svalue); + if (log) + fprintf(stderr, "skip %" PRIu64 "\n", (uint64_t)svalue); + break; + + case DW_OP_bra: + svalue = (int16_t) addressSpace.get16(p); + p += 2; + if (*sp--) + p = (pint_t)((sint_t)p + svalue); + if (log) + fprintf(stderr, "bra %" PRIu64 "\n", (uint64_t)svalue); + break; + + case DW_OP_eq: + value = *sp--; + *sp = (*sp == value); + if (log) + fprintf(stderr, "eq\n"); + break; + + case DW_OP_ge: + value = *sp--; + *sp = (*sp >= value); + if (log) + fprintf(stderr, "ge\n"); + break; + + case DW_OP_gt: + value = *sp--; + *sp = (*sp > value); + if (log) + fprintf(stderr, "gt\n"); + break; + + case DW_OP_le: + value = *sp--; + *sp = (*sp <= value); + if (log) + fprintf(stderr, "le\n"); + break; + + case DW_OP_lt: + value = *sp--; + *sp = (*sp < value); + if (log) + fprintf(stderr, "lt\n"); + break; + + case DW_OP_ne: + value = *sp--; + *sp = (*sp != value); + if (log) + fprintf(stderr, "ne\n"); + break; + + case DW_OP_lit0: + case DW_OP_lit1: + case DW_OP_lit2: + case DW_OP_lit3: + case DW_OP_lit4: + case DW_OP_lit5: + case DW_OP_lit6: + case DW_OP_lit7: + case DW_OP_lit8: + case DW_OP_lit9: + case DW_OP_lit10: + case DW_OP_lit11: + case DW_OP_lit12: + case DW_OP_lit13: + case DW_OP_lit14: + case DW_OP_lit15: + case DW_OP_lit16: + case DW_OP_lit17: + case DW_OP_lit18: + case DW_OP_lit19: + case DW_OP_lit20: + case DW_OP_lit21: + case DW_OP_lit22: + case DW_OP_lit23: + case DW_OP_lit24: + case DW_OP_lit25: + case DW_OP_lit26: + case DW_OP_lit27: + case DW_OP_lit28: + case DW_OP_lit29: + case DW_OP_lit30: + case DW_OP_lit31: + value = static_cast<pint_t>(opcode - DW_OP_lit0); + *(++sp) = value; + if (log) + fprintf(stderr, "push literal 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_reg0: + case DW_OP_reg1: + case DW_OP_reg2: + case DW_OP_reg3: + case DW_OP_reg4: + case DW_OP_reg5: + case DW_OP_reg6: + case DW_OP_reg7: + case DW_OP_reg8: + case DW_OP_reg9: + case DW_OP_reg10: + case DW_OP_reg11: + case DW_OP_reg12: + case DW_OP_reg13: + case DW_OP_reg14: + case DW_OP_reg15: + case DW_OP_reg16: + case DW_OP_reg17: + case DW_OP_reg18: + case DW_OP_reg19: + case DW_OP_reg20: + case DW_OP_reg21: + case DW_OP_reg22: + case DW_OP_reg23: + case DW_OP_reg24: + case DW_OP_reg25: + case DW_OP_reg26: + case DW_OP_reg27: + case DW_OP_reg28: + case DW_OP_reg29: + case DW_OP_reg30: + case DW_OP_reg31: + reg = static_cast<uint32_t>(opcode - DW_OP_reg0); + *(++sp) = registers.getRegister((int)reg); + if (log) + fprintf(stderr, "push reg %d\n", reg); + break; + + case DW_OP_regx: + reg = static_cast<uint32_t>(addressSpace.getULEB128(p, expressionEnd)); + *(++sp) = registers.getRegister((int)reg); + if (log) + fprintf(stderr, "push reg %d + 0x%" PRIx64 "\n", reg, (uint64_t)svalue); + break; + + case DW_OP_breg0: + case DW_OP_breg1: + case DW_OP_breg2: + case DW_OP_breg3: + case DW_OP_breg4: + case DW_OP_breg5: + case DW_OP_breg6: + case DW_OP_breg7: + case DW_OP_breg8: + case DW_OP_breg9: + case DW_OP_breg10: + case DW_OP_breg11: + case DW_OP_breg12: + case DW_OP_breg13: + case DW_OP_breg14: + case DW_OP_breg15: + case DW_OP_breg16: + case DW_OP_breg17: + case DW_OP_breg18: + case DW_OP_breg19: + case DW_OP_breg20: + case DW_OP_breg21: + case DW_OP_breg22: + case DW_OP_breg23: + case DW_OP_breg24: + case DW_OP_breg25: + case DW_OP_breg26: + case DW_OP_breg27: + case DW_OP_breg28: + case DW_OP_breg29: + case DW_OP_breg30: + case DW_OP_breg31: + reg = static_cast<uint32_t>(opcode - DW_OP_breg0); + svalue = (sint_t)addressSpace.getSLEB128(p, expressionEnd); + svalue += static_cast<sint_t>(registers.getRegister((int)reg)); + *(++sp) = (pint_t)(svalue); + if (log) + fprintf(stderr, "push reg %d + 0x%" PRIx64 "\n", reg, (uint64_t)svalue); + break; + + case DW_OP_bregx: + reg = static_cast<uint32_t>(addressSpace.getULEB128(p, expressionEnd)); + svalue = (sint_t)addressSpace.getSLEB128(p, expressionEnd); + svalue += static_cast<sint_t>(registers.getRegister((int)reg)); + *(++sp) = (pint_t)(svalue); + if (log) + fprintf(stderr, "push reg %d + 0x%" PRIx64 "\n", reg, (uint64_t)svalue); + break; + + case DW_OP_fbreg: + _LIBUNWIND_ABORT("DW_OP_fbreg not implemented"); + break; + + case DW_OP_piece: + _LIBUNWIND_ABORT("DW_OP_piece not implemented"); + break; + + case DW_OP_deref_size: + // pop stack, dereference, push result + value = *sp--; + switch (addressSpace.get8(p++)) { + case 1: + value = addressSpace.get8(value); + break; + case 2: + value = addressSpace.get16(value); + break; + case 4: + value = addressSpace.get32(value); + break; + case 8: + value = (pint_t)addressSpace.get64(value); + break; + default: + _LIBUNWIND_ABORT("DW_OP_deref_size with bad size"); + } + *(++sp) = value; + if (log) + fprintf(stderr, "sized dereference 0x%" PRIx64 "\n", (uint64_t)value); + break; + + case DW_OP_xderef_size: + case DW_OP_nop: + case DW_OP_push_object_addres: + case DW_OP_call2: + case DW_OP_call4: + case DW_OP_call_ref: + default: _LIBUNWIND_ABORT("DWARF opcode not implemented"); - } - - } - if (log) - fprintf(stderr, "expression evaluates to 0x%" PRIx64 "\n", (uint64_t)*sp); - return *sp; -} - - - -} // namespace libunwind - -#endif // __DWARF_INSTRUCTIONS_HPP__ + } + + } + if (log) + fprintf(stderr, "expression evaluates to 0x%" PRIx64 "\n", (uint64_t)*sp); + return *sp; +} + + + +} // namespace libunwind + +#endif // __DWARF_INSTRUCTIONS_HPP__ diff --git a/contrib/libs/libunwind/src/DwarfParser.hpp b/contrib/libs/libunwind/src/DwarfParser.hpp index 8f764923e7..b5a53166fc 100644 --- a/contrib/libs/libunwind/src/DwarfParser.hpp +++ b/contrib/libs/libunwind/src/DwarfParser.hpp @@ -1,94 +1,94 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Parses DWARF CFIs (FDEs and CIEs). -// -//===----------------------------------------------------------------------===// - -#ifndef __DWARF_PARSER_HPP__ -#define __DWARF_PARSER_HPP__ - -#include <inttypes.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> - -#include "libunwind.h" -#include "dwarf2.h" +// +// +// Parses DWARF CFIs (FDEs and CIEs). +// +//===----------------------------------------------------------------------===// + +#ifndef __DWARF_PARSER_HPP__ +#define __DWARF_PARSER_HPP__ + +#include <inttypes.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +#include "libunwind.h" +#include "dwarf2.h" #include "Registers.hpp" - + #include "config.h" - -namespace libunwind { -/// CFI_Parser does basic parsing of a CFI (Call Frame Information) records. +namespace libunwind { + +/// CFI_Parser does basic parsing of a CFI (Call Frame Information) records. /// See DWARF Spec for details: -/// http://refspecs.linuxbase.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html -/// -template <typename A> -class CFI_Parser { -public: - typedef typename A::pint_t pint_t; - - /// Information encoded in a CIE (Common Information Entry) - struct CIE_Info { - pint_t cieStart; - pint_t cieLength; - pint_t cieInstructions; - uint8_t pointerEncoding; - uint8_t lsdaEncoding; - uint8_t personalityEncoding; - uint8_t personalityOffsetInCIE; - pint_t personality; - uint32_t codeAlignFactor; - int dataAlignFactor; - bool isSignalFrame; - bool fdesHaveAugmentationData; - uint8_t returnAddressRegister; +/// http://refspecs.linuxbase.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html +/// +template <typename A> +class CFI_Parser { +public: + typedef typename A::pint_t pint_t; + + /// Information encoded in a CIE (Common Information Entry) + struct CIE_Info { + pint_t cieStart; + pint_t cieLength; + pint_t cieInstructions; + uint8_t pointerEncoding; + uint8_t lsdaEncoding; + uint8_t personalityEncoding; + uint8_t personalityOffsetInCIE; + pint_t personality; + uint32_t codeAlignFactor; + int dataAlignFactor; + bool isSignalFrame; + bool fdesHaveAugmentationData; + uint8_t returnAddressRegister; #if defined(_LIBUNWIND_TARGET_AARCH64) bool addressesSignedWithBKey; #endif - }; - - /// Information about an FDE (Frame Description Entry) - struct FDE_Info { - pint_t fdeStart; - pint_t fdeLength; - pint_t fdeInstructions; - pint_t pcStart; - pint_t pcEnd; - pint_t lsda; - }; - - enum { + }; + + /// Information about an FDE (Frame Description Entry) + struct FDE_Info { + pint_t fdeStart; + pint_t fdeLength; + pint_t fdeInstructions; + pint_t pcStart; + pint_t pcEnd; + pint_t lsda; + }; + + enum { kMaxRegisterNumber = _LIBUNWIND_HIGHEST_DWARF_REGISTER - }; - enum RegisterSavedWhere { - kRegisterUnused, + }; + enum RegisterSavedWhere { + kRegisterUnused, kRegisterUndefined, - kRegisterInCFA, + kRegisterInCFA, kRegisterInCFADecrypt, // sparc64 specific - kRegisterOffsetFromCFA, - kRegisterInRegister, - kRegisterAtExpression, - kRegisterIsExpression - }; - struct RegisterLocation { - RegisterSavedWhere location; + kRegisterOffsetFromCFA, + kRegisterInRegister, + kRegisterAtExpression, + kRegisterIsExpression + }; + struct RegisterLocation { + RegisterSavedWhere location; bool initialStateSaved; - int64_t value; - }; - /// Information about a frame layout and registers saved determined + int64_t value; + }; + /// Information about a frame layout and registers saved determined /// by "running" the DWARF FDE "instructions" - struct PrologInfo { - uint32_t cfaRegister; - int32_t cfaRegisterOffset; // CFA = (cfaRegister)+cfaRegisterOffset - int64_t cfaExpression; // CFA = expression - uint32_t spExtraArgSize; + struct PrologInfo { + uint32_t cfaRegister; + int32_t cfaRegisterOffset; // CFA = (cfaRegister)+cfaRegisterOffset + int64_t cfaExpression; // CFA = expression + uint32_t spExtraArgSize; RegisterLocation savedRegisters[kMaxRegisterNumber + 1]; enum class InitializeTime { kLazy, kNormal }; @@ -124,15 +124,15 @@ public: savedRegisters[reg] = initialState.savedRegisters[reg]; // else the register still holds its initial state } - }; - - struct PrologInfoStackEntry { - PrologInfoStackEntry(PrologInfoStackEntry *n, const PrologInfo &i) - : next(n), info(i) {} - PrologInfoStackEntry *next; - PrologInfo info; - }; - + }; + + struct PrologInfoStackEntry { + PrologInfoStackEntry(PrologInfoStackEntry *n, const PrologInfo &i) + : next(n), info(i) {} + PrologInfoStackEntry *next; + PrologInfo info; + }; + struct RememberStack { PrologInfoStackEntry *entry; RememberStack() : entry(nullptr) {} @@ -151,42 +151,42 @@ public: } }; - static bool findFDE(A &addressSpace, pint_t pc, pint_t ehSectionStart, + static bool findFDE(A &addressSpace, pint_t pc, pint_t ehSectionStart, size_t sectionLength, pint_t fdeHint, FDE_Info *fdeInfo, - CIE_Info *cieInfo); - static const char *decodeFDE(A &addressSpace, pint_t fdeStart, + CIE_Info *cieInfo); + static const char *decodeFDE(A &addressSpace, pint_t fdeStart, FDE_Info *fdeInfo, CIE_Info *cieInfo, bool useCIEInfo = false); - static bool parseFDEInstructions(A &addressSpace, const FDE_Info &fdeInfo, - const CIE_Info &cieInfo, pint_t upToPC, + static bool parseFDEInstructions(A &addressSpace, const FDE_Info &fdeInfo, + const CIE_Info &cieInfo, pint_t upToPC, int arch, PrologInfo *results); - - static const char *parseCIE(A &addressSpace, pint_t cie, CIE_Info *cieInfo); -}; - + + static const char *parseCIE(A &addressSpace, pint_t cie, CIE_Info *cieInfo); +}; + /// Parse a FDE into a CIE_Info and an FDE_Info. If useCIEInfo is /// true, treat cieInfo as already-parsed CIE_Info (whose start offset /// must match the one specified by the FDE) rather than parsing the /// one indicated within the FDE. -template <typename A> -const char *CFI_Parser<A>::decodeFDE(A &addressSpace, pint_t fdeStart, +template <typename A> +const char *CFI_Parser<A>::decodeFDE(A &addressSpace, pint_t fdeStart, FDE_Info *fdeInfo, CIE_Info *cieInfo, bool useCIEInfo) { - pint_t p = fdeStart; - pint_t cfiLength = (pint_t)addressSpace.get32(p); - p += 4; - if (cfiLength == 0xffffffff) { - // 0xffffffff means length is really next 8 bytes - cfiLength = (pint_t)addressSpace.get64(p); - p += 8; - } - if (cfiLength == 0) + pint_t p = fdeStart; + pint_t cfiLength = (pint_t)addressSpace.get32(p); + p += 4; + if (cfiLength == 0xffffffff) { + // 0xffffffff means length is really next 8 bytes + cfiLength = (pint_t)addressSpace.get64(p); + p += 8; + } + if (cfiLength == 0) return "FDE has zero length"; // zero terminator - uint32_t ciePointer = addressSpace.get32(p); + uint32_t ciePointer = addressSpace.get32(p); if (ciePointer == 0) return "FDE is really a CIE"; // this is a CIE not an FDE - pint_t nextCFI = p + cfiLength; - pint_t cieStart = p - ciePointer; + pint_t nextCFI = p + cfiLength; + pint_t cieStart = p - ciePointer; if (useCIEInfo) { if (cieInfo->cieStart != cieStart) return "CIE start does not match"; @@ -195,242 +195,242 @@ const char *CFI_Parser<A>::decodeFDE(A &addressSpace, pint_t fdeStart, if (err != NULL) return err; } - p += 4; + p += 4; // Parse pc begin and range. - pint_t pcStart = - addressSpace.getEncodedP(p, nextCFI, cieInfo->pointerEncoding); - pint_t pcRange = - addressSpace.getEncodedP(p, nextCFI, cieInfo->pointerEncoding & 0x0F); + pint_t pcStart = + addressSpace.getEncodedP(p, nextCFI, cieInfo->pointerEncoding); + pint_t pcRange = + addressSpace.getEncodedP(p, nextCFI, cieInfo->pointerEncoding & 0x0F); // Parse rest of info. - fdeInfo->lsda = 0; + fdeInfo->lsda = 0; // Check for augmentation length. - if (cieInfo->fdesHaveAugmentationData) { - pint_t augLen = (pint_t)addressSpace.getULEB128(p, nextCFI); - pint_t endOfAug = p + augLen; - if (cieInfo->lsdaEncoding != DW_EH_PE_omit) { + if (cieInfo->fdesHaveAugmentationData) { + pint_t augLen = (pint_t)addressSpace.getULEB128(p, nextCFI); + pint_t endOfAug = p + augLen; + if (cieInfo->lsdaEncoding != DW_EH_PE_omit) { // Peek at value (without indirection). Zero means no LSDA. - pint_t lsdaStart = p; - if (addressSpace.getEncodedP(p, nextCFI, cieInfo->lsdaEncoding & 0x0F) != - 0) { + pint_t lsdaStart = p; + if (addressSpace.getEncodedP(p, nextCFI, cieInfo->lsdaEncoding & 0x0F) != + 0) { // Reset pointer and re-parse LSDA address. - p = lsdaStart; - fdeInfo->lsda = - addressSpace.getEncodedP(p, nextCFI, cieInfo->lsdaEncoding); - } - } - p = endOfAug; - } - fdeInfo->fdeStart = fdeStart; - fdeInfo->fdeLength = nextCFI - fdeStart; - fdeInfo->fdeInstructions = p; - fdeInfo->pcStart = pcStart; - fdeInfo->pcEnd = pcStart + pcRange; - return NULL; // success -} - -/// Scan an eh_frame section to find an FDE for a pc -template <typename A> -bool CFI_Parser<A>::findFDE(A &addressSpace, pint_t pc, pint_t ehSectionStart, + p = lsdaStart; + fdeInfo->lsda = + addressSpace.getEncodedP(p, nextCFI, cieInfo->lsdaEncoding); + } + } + p = endOfAug; + } + fdeInfo->fdeStart = fdeStart; + fdeInfo->fdeLength = nextCFI - fdeStart; + fdeInfo->fdeInstructions = p; + fdeInfo->pcStart = pcStart; + fdeInfo->pcEnd = pcStart + pcRange; + return NULL; // success +} + +/// Scan an eh_frame section to find an FDE for a pc +template <typename A> +bool CFI_Parser<A>::findFDE(A &addressSpace, pint_t pc, pint_t ehSectionStart, size_t sectionLength, pint_t fdeHint, - FDE_Info *fdeInfo, CIE_Info *cieInfo) { - //fprintf(stderr, "findFDE(0x%llX)\n", (long long)pc); - pint_t p = (fdeHint != 0) ? fdeHint : ehSectionStart; + FDE_Info *fdeInfo, CIE_Info *cieInfo) { + //fprintf(stderr, "findFDE(0x%llX)\n", (long long)pc); + pint_t p = (fdeHint != 0) ? fdeHint : ehSectionStart; const pint_t ehSectionEnd = (sectionLength == SIZE_MAX) ? static_cast<pint_t>(-1) : (ehSectionStart + sectionLength); - while (p < ehSectionEnd) { - pint_t currentCFI = p; - //fprintf(stderr, "findFDE() CFI at 0x%llX\n", (long long)p); - pint_t cfiLength = addressSpace.get32(p); - p += 4; - if (cfiLength == 0xffffffff) { - // 0xffffffff means length is really next 8 bytes - cfiLength = (pint_t)addressSpace.get64(p); - p += 8; - } - if (cfiLength == 0) + while (p < ehSectionEnd) { + pint_t currentCFI = p; + //fprintf(stderr, "findFDE() CFI at 0x%llX\n", (long long)p); + pint_t cfiLength = addressSpace.get32(p); + p += 4; + if (cfiLength == 0xffffffff) { + // 0xffffffff means length is really next 8 bytes + cfiLength = (pint_t)addressSpace.get64(p); + p += 8; + } + if (cfiLength == 0) return false; // zero terminator - uint32_t id = addressSpace.get32(p); - if (id == 0) { + uint32_t id = addressSpace.get32(p); + if (id == 0) { // Skip over CIEs. - p += cfiLength; - } else { + p += cfiLength; + } else { // Process FDE to see if it covers pc. - pint_t nextCFI = p + cfiLength; - uint32_t ciePointer = addressSpace.get32(p); - pint_t cieStart = p - ciePointer; + pint_t nextCFI = p + cfiLength; + uint32_t ciePointer = addressSpace.get32(p); + pint_t cieStart = p - ciePointer; // Validate pointer to CIE is within section. - if ((ehSectionStart <= cieStart) && (cieStart < ehSectionEnd)) { - if (parseCIE(addressSpace, cieStart, cieInfo) == NULL) { - p += 4; + if ((ehSectionStart <= cieStart) && (cieStart < ehSectionEnd)) { + if (parseCIE(addressSpace, cieStart, cieInfo) == NULL) { + p += 4; // Parse pc begin and range. - pint_t pcStart = - addressSpace.getEncodedP(p, nextCFI, cieInfo->pointerEncoding); - pint_t pcRange = addressSpace.getEncodedP( - p, nextCFI, cieInfo->pointerEncoding & 0x0F); + pint_t pcStart = + addressSpace.getEncodedP(p, nextCFI, cieInfo->pointerEncoding); + pint_t pcRange = addressSpace.getEncodedP( + p, nextCFI, cieInfo->pointerEncoding & 0x0F); // Test if pc is within the function this FDE covers. - if ((pcStart < pc) && (pc <= pcStart + pcRange)) { - // parse rest of info - fdeInfo->lsda = 0; - // check for augmentation length - if (cieInfo->fdesHaveAugmentationData) { - pint_t augLen = (pint_t)addressSpace.getULEB128(p, nextCFI); - pint_t endOfAug = p + augLen; - if (cieInfo->lsdaEncoding != DW_EH_PE_omit) { + if ((pcStart < pc) && (pc <= pcStart + pcRange)) { + // parse rest of info + fdeInfo->lsda = 0; + // check for augmentation length + if (cieInfo->fdesHaveAugmentationData) { + pint_t augLen = (pint_t)addressSpace.getULEB128(p, nextCFI); + pint_t endOfAug = p + augLen; + if (cieInfo->lsdaEncoding != DW_EH_PE_omit) { // Peek at value (without indirection). Zero means no LSDA. - pint_t lsdaStart = p; - if (addressSpace.getEncodedP( - p, nextCFI, cieInfo->lsdaEncoding & 0x0F) != 0) { + pint_t lsdaStart = p; + if (addressSpace.getEncodedP( + p, nextCFI, cieInfo->lsdaEncoding & 0x0F) != 0) { // Reset pointer and re-parse LSDA address. - p = lsdaStart; - fdeInfo->lsda = addressSpace - .getEncodedP(p, nextCFI, cieInfo->lsdaEncoding); - } - } - p = endOfAug; - } - fdeInfo->fdeStart = currentCFI; - fdeInfo->fdeLength = nextCFI - currentCFI; - fdeInfo->fdeInstructions = p; - fdeInfo->pcStart = pcStart; - fdeInfo->pcEnd = pcStart + pcRange; - return true; - } else { - // pc is not in begin/range, skip this FDE - } - } else { + p = lsdaStart; + fdeInfo->lsda = addressSpace + .getEncodedP(p, nextCFI, cieInfo->lsdaEncoding); + } + } + p = endOfAug; + } + fdeInfo->fdeStart = currentCFI; + fdeInfo->fdeLength = nextCFI - currentCFI; + fdeInfo->fdeInstructions = p; + fdeInfo->pcStart = pcStart; + fdeInfo->pcEnd = pcStart + pcRange; + return true; + } else { + // pc is not in begin/range, skip this FDE + } + } else { // Malformed CIE, now augmentation describing pc range encoding. - } - } else { - // malformed FDE. CIE is bad - } - p = nextCFI; - } - } - return false; -} - -/// Extract info from a CIE -template <typename A> -const char *CFI_Parser<A>::parseCIE(A &addressSpace, pint_t cie, - CIE_Info *cieInfo) { - cieInfo->pointerEncoding = 0; - cieInfo->lsdaEncoding = DW_EH_PE_omit; - cieInfo->personalityEncoding = 0; - cieInfo->personalityOffsetInCIE = 0; - cieInfo->personality = 0; - cieInfo->codeAlignFactor = 0; - cieInfo->dataAlignFactor = 0; - cieInfo->isSignalFrame = false; - cieInfo->fdesHaveAugmentationData = false; + } + } else { + // malformed FDE. CIE is bad + } + p = nextCFI; + } + } + return false; +} + +/// Extract info from a CIE +template <typename A> +const char *CFI_Parser<A>::parseCIE(A &addressSpace, pint_t cie, + CIE_Info *cieInfo) { + cieInfo->pointerEncoding = 0; + cieInfo->lsdaEncoding = DW_EH_PE_omit; + cieInfo->personalityEncoding = 0; + cieInfo->personalityOffsetInCIE = 0; + cieInfo->personality = 0; + cieInfo->codeAlignFactor = 0; + cieInfo->dataAlignFactor = 0; + cieInfo->isSignalFrame = false; + cieInfo->fdesHaveAugmentationData = false; #if defined(_LIBUNWIND_TARGET_AARCH64) cieInfo->addressesSignedWithBKey = false; #endif - cieInfo->cieStart = cie; - pint_t p = cie; - pint_t cieLength = (pint_t)addressSpace.get32(p); - p += 4; - pint_t cieContentEnd = p + cieLength; - if (cieLength == 0xffffffff) { - // 0xffffffff means length is really next 8 bytes - cieLength = (pint_t)addressSpace.get64(p); - p += 8; - cieContentEnd = p + cieLength; - } - if (cieLength == 0) - return NULL; - // CIE ID is always 0 - if (addressSpace.get32(p) != 0) - return "CIE ID is not zero"; - p += 4; - // Version is always 1 or 3 - uint8_t version = addressSpace.get8(p); - if ((version != 1) && (version != 3)) - return "CIE version is not 1 or 3"; - ++p; - // save start of augmentation string and find end - pint_t strStart = p; - while (addressSpace.get8(p) != 0) - ++p; - ++p; - // parse code aligment factor - cieInfo->codeAlignFactor = (uint32_t)addressSpace.getULEB128(p, cieContentEnd); - // parse data alignment factor - cieInfo->dataAlignFactor = (int)addressSpace.getSLEB128(p, cieContentEnd); - // parse return address register + cieInfo->cieStart = cie; + pint_t p = cie; + pint_t cieLength = (pint_t)addressSpace.get32(p); + p += 4; + pint_t cieContentEnd = p + cieLength; + if (cieLength == 0xffffffff) { + // 0xffffffff means length is really next 8 bytes + cieLength = (pint_t)addressSpace.get64(p); + p += 8; + cieContentEnd = p + cieLength; + } + if (cieLength == 0) + return NULL; + // CIE ID is always 0 + if (addressSpace.get32(p) != 0) + return "CIE ID is not zero"; + p += 4; + // Version is always 1 or 3 + uint8_t version = addressSpace.get8(p); + if ((version != 1) && (version != 3)) + return "CIE version is not 1 or 3"; + ++p; + // save start of augmentation string and find end + pint_t strStart = p; + while (addressSpace.get8(p) != 0) + ++p; + ++p; + // parse code aligment factor + cieInfo->codeAlignFactor = (uint32_t)addressSpace.getULEB128(p, cieContentEnd); + // parse data alignment factor + cieInfo->dataAlignFactor = (int)addressSpace.getSLEB128(p, cieContentEnd); + // parse return address register uint64_t raReg = (version == 1) ? addressSpace.get8(p++) : addressSpace.getULEB128(p, cieContentEnd); - assert(raReg < 255 && "return address register too large"); - cieInfo->returnAddressRegister = (uint8_t)raReg; - // parse augmentation data based on augmentation string - const char *result = NULL; - if (addressSpace.get8(strStart) == 'z') { - // parse augmentation data length - addressSpace.getULEB128(p, cieContentEnd); - for (pint_t s = strStart; addressSpace.get8(s) != '\0'; ++s) { - switch (addressSpace.get8(s)) { - case 'z': - cieInfo->fdesHaveAugmentationData = true; - break; - case 'P': - cieInfo->personalityEncoding = addressSpace.get8(p); - ++p; - cieInfo->personalityOffsetInCIE = (uint8_t)(p - cie); - cieInfo->personality = addressSpace - .getEncodedP(p, cieContentEnd, cieInfo->personalityEncoding); - break; - case 'L': - cieInfo->lsdaEncoding = addressSpace.get8(p); - ++p; - break; - case 'R': - cieInfo->pointerEncoding = addressSpace.get8(p); - ++p; - break; - case 'S': - cieInfo->isSignalFrame = true; - break; + assert(raReg < 255 && "return address register too large"); + cieInfo->returnAddressRegister = (uint8_t)raReg; + // parse augmentation data based on augmentation string + const char *result = NULL; + if (addressSpace.get8(strStart) == 'z') { + // parse augmentation data length + addressSpace.getULEB128(p, cieContentEnd); + for (pint_t s = strStart; addressSpace.get8(s) != '\0'; ++s) { + switch (addressSpace.get8(s)) { + case 'z': + cieInfo->fdesHaveAugmentationData = true; + break; + case 'P': + cieInfo->personalityEncoding = addressSpace.get8(p); + ++p; + cieInfo->personalityOffsetInCIE = (uint8_t)(p - cie); + cieInfo->personality = addressSpace + .getEncodedP(p, cieContentEnd, cieInfo->personalityEncoding); + break; + case 'L': + cieInfo->lsdaEncoding = addressSpace.get8(p); + ++p; + break; + case 'R': + cieInfo->pointerEncoding = addressSpace.get8(p); + ++p; + break; + case 'S': + cieInfo->isSignalFrame = true; + break; #if defined(_LIBUNWIND_TARGET_AARCH64) case 'B': cieInfo->addressesSignedWithBKey = true; break; #endif - default: - // ignore unknown letters - break; - } - } - } - cieInfo->cieLength = cieContentEnd - cieInfo->cieStart; - cieInfo->cieInstructions = p; - return result; -} - - + default: + // ignore unknown letters + break; + } + } + } + cieInfo->cieLength = cieContentEnd - cieInfo->cieStart; + cieInfo->cieInstructions = p; + return result; +} + + /// "run" the DWARF instructions and create the abstact PrologInfo for an FDE -template <typename A> -bool CFI_Parser<A>::parseFDEInstructions(A &addressSpace, - const FDE_Info &fdeInfo, - const CIE_Info &cieInfo, pint_t upToPC, +template <typename A> +bool CFI_Parser<A>::parseFDEInstructions(A &addressSpace, + const FDE_Info &fdeInfo, + const CIE_Info &cieInfo, pint_t upToPC, int arch, PrologInfo *results) { // Alloca is used for the allocation of the rememberStack entries. It removes // the dependency on new/malloc but the below for loop can not be refactored // into functions. Entry could be saved during the processing of a CIE and // restored by an FDE. RememberStack rememberStack; - + struct ParseInfo { pint_t instructions; pint_t instructionsEnd; pint_t pcoffset; }; - + ParseInfo parseInfoArray[] = { {cieInfo.cieInstructions, cieInfo.cieStart + cieInfo.cieLength, (pint_t)(-1)}, {fdeInfo.fdeInstructions, fdeInfo.fdeStart + fdeInfo.fdeLength, upToPC - fdeInfo.pcStart}}; - + for (const auto &info : parseInfoArray) { pint_t p = info.instructions; pint_t instructionsEnd = info.instructionsEnd; @@ -588,7 +588,7 @@ bool CFI_Parser<A>::parseFDEInstructions(A &addressSpace, _LIBUNWIND_TRACE_DWARF("DW_CFA_def_cfa(reg=%" PRIu64 ", offset=%" PRIu64 ")\n", reg, offset); - break; + break; case DW_CFA_def_cfa_register: reg = addressSpace.getULEB128(p, instructionsEnd); if (reg > kMaxRegisterNumber) { @@ -598,7 +598,7 @@ bool CFI_Parser<A>::parseFDEInstructions(A &addressSpace, } results->cfaRegister = (uint32_t)reg; _LIBUNWIND_TRACE_DWARF("DW_CFA_def_cfa_register(%" PRIu64 ")\n", reg); - break; + break; case DW_CFA_def_cfa_offset: results->cfaRegisterOffset = (int32_t)addressSpace.getULEB128(p, instructionsEnd); @@ -631,7 +631,7 @@ bool CFI_Parser<A>::parseFDEInstructions(A &addressSpace, "expression=0x%" PRIx64 ", " "length=%" PRIu64 ")\n", reg, results->savedRegisters[reg].value, length); - break; + break; case DW_CFA_offset_extended_sf: reg = addressSpace.getULEB128(p, instructionsEnd); if (reg > kMaxRegisterNumber) { @@ -798,7 +798,7 @@ bool CFI_Parser<A>::parseFDEInstructions(A &addressSpace, (void)arch; #endif - default: + default: operand = opcode & 0x3F; switch (opcode & 0xC0) { case DW_CFA_offset: @@ -837,12 +837,12 @@ bool CFI_Parser<A>::parseFDEInstructions(A &addressSpace, _LIBUNWIND_TRACE_DWARF("unknown CFA opcode 0x%02X\n", opcode); return false; } - } - } - } - return true; -} - -} // namespace libunwind - -#endif // __DWARF_PARSER_HPP__ + } + } + } + return true; +} + +} // namespace libunwind + +#endif // __DWARF_PARSER_HPP__ diff --git a/contrib/libs/libunwind/src/EHHeaderParser.hpp b/contrib/libs/libunwind/src/EHHeaderParser.hpp index 188cb93269..9a38070fab 100644 --- a/contrib/libs/libunwind/src/EHHeaderParser.hpp +++ b/contrib/libs/libunwind/src/EHHeaderParser.hpp @@ -1,169 +1,169 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Parses ELF .eh_frame_hdr sections. -// -//===----------------------------------------------------------------------===// - -#ifndef __EHHEADERPARSER_HPP__ -#define __EHHEADERPARSER_HPP__ - -#include "libunwind.h" - -#include "DwarfParser.hpp" - -namespace libunwind { - -/// \brief EHHeaderParser does basic parsing of an ELF .eh_frame_hdr section. -/// -/// See DWARF spec for details: -/// http://refspecs.linuxbase.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html -/// -template <typename A> class EHHeaderParser { -public: - typedef typename A::pint_t pint_t; - - /// Information encoded in the EH frame header. - struct EHHeaderInfo { - pint_t eh_frame_ptr; - size_t fde_count; - pint_t table; - uint8_t table_enc; - }; - +// +// +// Parses ELF .eh_frame_hdr sections. +// +//===----------------------------------------------------------------------===// + +#ifndef __EHHEADERPARSER_HPP__ +#define __EHHEADERPARSER_HPP__ + +#include "libunwind.h" + +#include "DwarfParser.hpp" + +namespace libunwind { + +/// \brief EHHeaderParser does basic parsing of an ELF .eh_frame_hdr section. +/// +/// See DWARF spec for details: +/// http://refspecs.linuxbase.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/ehframechpt.html +/// +template <typename A> class EHHeaderParser { +public: + typedef typename A::pint_t pint_t; + + /// Information encoded in the EH frame header. + struct EHHeaderInfo { + pint_t eh_frame_ptr; + size_t fde_count; + pint_t table; + uint8_t table_enc; + }; + static bool decodeEHHdr(A &addressSpace, pint_t ehHdrStart, pint_t ehHdrEnd, - EHHeaderInfo &ehHdrInfo); - static bool findFDE(A &addressSpace, pint_t pc, pint_t ehHdrStart, - uint32_t sectionLength, - typename CFI_Parser<A>::FDE_Info *fdeInfo, - typename CFI_Parser<A>::CIE_Info *cieInfo); - -private: - static bool decodeTableEntry(A &addressSpace, pint_t &tableEntry, - pint_t ehHdrStart, pint_t ehHdrEnd, - uint8_t tableEnc, - typename CFI_Parser<A>::FDE_Info *fdeInfo, - typename CFI_Parser<A>::CIE_Info *cieInfo); - static size_t getTableEntrySize(uint8_t tableEnc); -}; - -template <typename A> + EHHeaderInfo &ehHdrInfo); + static bool findFDE(A &addressSpace, pint_t pc, pint_t ehHdrStart, + uint32_t sectionLength, + typename CFI_Parser<A>::FDE_Info *fdeInfo, + typename CFI_Parser<A>::CIE_Info *cieInfo); + +private: + static bool decodeTableEntry(A &addressSpace, pint_t &tableEntry, + pint_t ehHdrStart, pint_t ehHdrEnd, + uint8_t tableEnc, + typename CFI_Parser<A>::FDE_Info *fdeInfo, + typename CFI_Parser<A>::CIE_Info *cieInfo); + static size_t getTableEntrySize(uint8_t tableEnc); +}; + +template <typename A> bool EHHeaderParser<A>::decodeEHHdr(A &addressSpace, pint_t ehHdrStart, - pint_t ehHdrEnd, EHHeaderInfo &ehHdrInfo) { - pint_t p = ehHdrStart; - uint8_t version = addressSpace.get8(p++); + pint_t ehHdrEnd, EHHeaderInfo &ehHdrInfo) { + pint_t p = ehHdrStart; + uint8_t version = addressSpace.get8(p++); if (version != 1) { _LIBUNWIND_LOG0("Unsupported .eh_frame_hdr version"); return false; } - - uint8_t eh_frame_ptr_enc = addressSpace.get8(p++); - uint8_t fde_count_enc = addressSpace.get8(p++); - ehHdrInfo.table_enc = addressSpace.get8(p++); - - ehHdrInfo.eh_frame_ptr = - addressSpace.getEncodedP(p, ehHdrEnd, eh_frame_ptr_enc, ehHdrStart); - ehHdrInfo.fde_count = + + uint8_t eh_frame_ptr_enc = addressSpace.get8(p++); + uint8_t fde_count_enc = addressSpace.get8(p++); + ehHdrInfo.table_enc = addressSpace.get8(p++); + + ehHdrInfo.eh_frame_ptr = + addressSpace.getEncodedP(p, ehHdrEnd, eh_frame_ptr_enc, ehHdrStart); + ehHdrInfo.fde_count = fde_count_enc == DW_EH_PE_omit ? 0 : addressSpace.getEncodedP(p, ehHdrEnd, fde_count_enc, ehHdrStart); - ehHdrInfo.table = p; + ehHdrInfo.table = p; return true; -} - -template <typename A> -bool EHHeaderParser<A>::decodeTableEntry( - A &addressSpace, pint_t &tableEntry, pint_t ehHdrStart, pint_t ehHdrEnd, - uint8_t tableEnc, typename CFI_Parser<A>::FDE_Info *fdeInfo, - typename CFI_Parser<A>::CIE_Info *cieInfo) { - // Have to decode the whole FDE for the PC range anyway, so just throw away - // the PC start. - addressSpace.getEncodedP(tableEntry, ehHdrEnd, tableEnc, ehHdrStart); - pint_t fde = - addressSpace.getEncodedP(tableEntry, ehHdrEnd, tableEnc, ehHdrStart); - const char *message = - CFI_Parser<A>::decodeFDE(addressSpace, fde, fdeInfo, cieInfo); - if (message != NULL) { +} + +template <typename A> +bool EHHeaderParser<A>::decodeTableEntry( + A &addressSpace, pint_t &tableEntry, pint_t ehHdrStart, pint_t ehHdrEnd, + uint8_t tableEnc, typename CFI_Parser<A>::FDE_Info *fdeInfo, + typename CFI_Parser<A>::CIE_Info *cieInfo) { + // Have to decode the whole FDE for the PC range anyway, so just throw away + // the PC start. + addressSpace.getEncodedP(tableEntry, ehHdrEnd, tableEnc, ehHdrStart); + pint_t fde = + addressSpace.getEncodedP(tableEntry, ehHdrEnd, tableEnc, ehHdrStart); + const char *message = + CFI_Parser<A>::decodeFDE(addressSpace, fde, fdeInfo, cieInfo); + if (message != NULL) { _LIBUNWIND_DEBUG_LOG("EHHeaderParser::decodeTableEntry: bad fde: %s", - message); - return false; - } - - return true; -} - -template <typename A> -bool EHHeaderParser<A>::findFDE(A &addressSpace, pint_t pc, pint_t ehHdrStart, - uint32_t sectionLength, - typename CFI_Parser<A>::FDE_Info *fdeInfo, - typename CFI_Parser<A>::CIE_Info *cieInfo) { - pint_t ehHdrEnd = ehHdrStart + sectionLength; - - EHHeaderParser<A>::EHHeaderInfo hdrInfo; + message); + return false; + } + + return true; +} + +template <typename A> +bool EHHeaderParser<A>::findFDE(A &addressSpace, pint_t pc, pint_t ehHdrStart, + uint32_t sectionLength, + typename CFI_Parser<A>::FDE_Info *fdeInfo, + typename CFI_Parser<A>::CIE_Info *cieInfo) { + pint_t ehHdrEnd = ehHdrStart + sectionLength; + + EHHeaderParser<A>::EHHeaderInfo hdrInfo; if (!EHHeaderParser<A>::decodeEHHdr(addressSpace, ehHdrStart, ehHdrEnd, hdrInfo)) return false; - + if (hdrInfo.fde_count == 0) return false; - size_t tableEntrySize = getTableEntrySize(hdrInfo.table_enc); - pint_t tableEntry; - - size_t low = 0; - for (size_t len = hdrInfo.fde_count; len > 1;) { - size_t mid = low + (len / 2); - tableEntry = hdrInfo.table + mid * tableEntrySize; - pint_t start = addressSpace.getEncodedP(tableEntry, ehHdrEnd, - hdrInfo.table_enc, ehHdrStart); - - if (start == pc) { - low = mid; - break; - } else if (start < pc) { - low = mid; - len -= (len / 2); - } else { - len /= 2; - } - } - - tableEntry = hdrInfo.table + low * tableEntrySize; - if (decodeTableEntry(addressSpace, tableEntry, ehHdrStart, ehHdrEnd, - hdrInfo.table_enc, fdeInfo, cieInfo)) { - if (pc >= fdeInfo->pcStart && pc < fdeInfo->pcEnd) - return true; - } - - return false; -} - -template <typename A> -size_t EHHeaderParser<A>::getTableEntrySize(uint8_t tableEnc) { - switch (tableEnc & 0x0f) { - case DW_EH_PE_sdata2: - case DW_EH_PE_udata2: - return 4; - case DW_EH_PE_sdata4: - case DW_EH_PE_udata4: - return 8; - case DW_EH_PE_sdata8: - case DW_EH_PE_udata8: - return 16; - case DW_EH_PE_sleb128: - case DW_EH_PE_uleb128: - _LIBUNWIND_ABORT("Can't binary search on variable length encoded data."); - case DW_EH_PE_omit: - return 0; - default: - _LIBUNWIND_ABORT("Unknown DWARF encoding for search table."); - } -} - -} - -#endif + size_t tableEntrySize = getTableEntrySize(hdrInfo.table_enc); + pint_t tableEntry; + + size_t low = 0; + for (size_t len = hdrInfo.fde_count; len > 1;) { + size_t mid = low + (len / 2); + tableEntry = hdrInfo.table + mid * tableEntrySize; + pint_t start = addressSpace.getEncodedP(tableEntry, ehHdrEnd, + hdrInfo.table_enc, ehHdrStart); + + if (start == pc) { + low = mid; + break; + } else if (start < pc) { + low = mid; + len -= (len / 2); + } else { + len /= 2; + } + } + + tableEntry = hdrInfo.table + low * tableEntrySize; + if (decodeTableEntry(addressSpace, tableEntry, ehHdrStart, ehHdrEnd, + hdrInfo.table_enc, fdeInfo, cieInfo)) { + if (pc >= fdeInfo->pcStart && pc < fdeInfo->pcEnd) + return true; + } + + return false; +} + +template <typename A> +size_t EHHeaderParser<A>::getTableEntrySize(uint8_t tableEnc) { + switch (tableEnc & 0x0f) { + case DW_EH_PE_sdata2: + case DW_EH_PE_udata2: + return 4; + case DW_EH_PE_sdata4: + case DW_EH_PE_udata4: + return 8; + case DW_EH_PE_sdata8: + case DW_EH_PE_udata8: + return 16; + case DW_EH_PE_sleb128: + case DW_EH_PE_uleb128: + _LIBUNWIND_ABORT("Can't binary search on variable length encoded data."); + case DW_EH_PE_omit: + return 0; + default: + _LIBUNWIND_ABORT("Unknown DWARF encoding for search table."); + } +} + +} + +#endif diff --git a/contrib/libs/libunwind/src/Registers.hpp b/contrib/libs/libunwind/src/Registers.hpp index 3d03b815cf..cbc3876d67 100644 --- a/contrib/libs/libunwind/src/Registers.hpp +++ b/contrib/libs/libunwind/src/Registers.hpp @@ -1,29 +1,29 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Models register sets for supported processors. -// -//===----------------------------------------------------------------------===// - -#ifndef __REGISTERS_HPP__ -#define __REGISTERS_HPP__ - -#include <stdint.h> -#include <string.h> - +// +// +// Models register sets for supported processors. +// +//===----------------------------------------------------------------------===// + +#ifndef __REGISTERS_HPP__ +#define __REGISTERS_HPP__ + +#include <stdint.h> +#include <string.h> + #include "cet_unwind.h" #include "config.h" -#include "libunwind.h" - -namespace libunwind { - -// For emulating 128-bit registers -struct v128 { uint32_t vec[4]; }; - +#include "libunwind.h" + +namespace libunwind { + +// For emulating 128-bit registers +struct v128 { uint32_t vec[4]; }; + enum { REGISTERS_X86, REGISTERS_X86_64, @@ -40,7 +40,7 @@ enum { REGISTERS_RISCV, REGISTERS_VE, }; - + #if defined(_LIBUNWIND_TARGET_I386) class _LIBUNWIND_HIDDEN Registers_x86; extern "C" void __libunwind_Registers_x86_jumpto(Registers_x86 *); @@ -51,215 +51,215 @@ extern "C" void *__libunwind_cet_get_jump_target() { } #endif -/// Registers_x86 holds the register state of a thread in a 32-bit intel -/// process. -class _LIBUNWIND_HIDDEN Registers_x86 { -public: - Registers_x86(); - Registers_x86(const void *registers); - - bool validRegister(int num) const; - uint32_t getRegister(int num) const; - void setRegister(int num, uint32_t value); - bool validFloatRegister(int) const { return false; } - double getFloatRegister(int num) const; - void setFloatRegister(int num, double value); - bool validVectorRegister(int) const { return false; } - v128 getVectorRegister(int num) const; - void setVectorRegister(int num, v128 value); +/// Registers_x86 holds the register state of a thread in a 32-bit intel +/// process. +class _LIBUNWIND_HIDDEN Registers_x86 { +public: + Registers_x86(); + Registers_x86(const void *registers); + + bool validRegister(int num) const; + uint32_t getRegister(int num) const; + void setRegister(int num, uint32_t value); + bool validFloatRegister(int) const { return false; } + double getFloatRegister(int num) const; + void setFloatRegister(int num, double value); + bool validVectorRegister(int) const { return false; } + v128 getVectorRegister(int num) const; + void setVectorRegister(int num, v128 value); static const char *getRegisterName(int num); void jumpto() { __libunwind_Registers_x86_jumpto(this); } static int lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER_X86; } static int getArch() { return REGISTERS_X86; } - - uint32_t getSP() const { return _registers.__esp; } - void setSP(uint32_t value) { _registers.__esp = value; } - uint32_t getIP() const { return _registers.__eip; } - void setIP(uint32_t value) { _registers.__eip = value; } - uint32_t getEBP() const { return _registers.__ebp; } - void setEBP(uint32_t value) { _registers.__ebp = value; } - uint32_t getEBX() const { return _registers.__ebx; } - void setEBX(uint32_t value) { _registers.__ebx = value; } - uint32_t getECX() const { return _registers.__ecx; } - void setECX(uint32_t value) { _registers.__ecx = value; } - uint32_t getEDX() const { return _registers.__edx; } - void setEDX(uint32_t value) { _registers.__edx = value; } - uint32_t getESI() const { return _registers.__esi; } - void setESI(uint32_t value) { _registers.__esi = value; } - uint32_t getEDI() const { return _registers.__edi; } - void setEDI(uint32_t value) { _registers.__edi = value; } - -private: - struct GPRs { - unsigned int __eax; - unsigned int __ebx; - unsigned int __ecx; - unsigned int __edx; - unsigned int __edi; - unsigned int __esi; - unsigned int __ebp; - unsigned int __esp; - unsigned int __ss; - unsigned int __eflags; - unsigned int __eip; - unsigned int __cs; - unsigned int __ds; - unsigned int __es; - unsigned int __fs; - unsigned int __gs; - }; - - GPRs _registers; -}; - -inline Registers_x86::Registers_x86(const void *registers) { + + uint32_t getSP() const { return _registers.__esp; } + void setSP(uint32_t value) { _registers.__esp = value; } + uint32_t getIP() const { return _registers.__eip; } + void setIP(uint32_t value) { _registers.__eip = value; } + uint32_t getEBP() const { return _registers.__ebp; } + void setEBP(uint32_t value) { _registers.__ebp = value; } + uint32_t getEBX() const { return _registers.__ebx; } + void setEBX(uint32_t value) { _registers.__ebx = value; } + uint32_t getECX() const { return _registers.__ecx; } + void setECX(uint32_t value) { _registers.__ecx = value; } + uint32_t getEDX() const { return _registers.__edx; } + void setEDX(uint32_t value) { _registers.__edx = value; } + uint32_t getESI() const { return _registers.__esi; } + void setESI(uint32_t value) { _registers.__esi = value; } + uint32_t getEDI() const { return _registers.__edi; } + void setEDI(uint32_t value) { _registers.__edi = value; } + +private: + struct GPRs { + unsigned int __eax; + unsigned int __ebx; + unsigned int __ecx; + unsigned int __edx; + unsigned int __edi; + unsigned int __esi; + unsigned int __ebp; + unsigned int __esp; + unsigned int __ss; + unsigned int __eflags; + unsigned int __eip; + unsigned int __cs; + unsigned int __ds; + unsigned int __es; + unsigned int __fs; + unsigned int __gs; + }; + + GPRs _registers; +}; + +inline Registers_x86::Registers_x86(const void *registers) { static_assert((check_fit<Registers_x86, unw_context_t>::does_fit), "x86 registers do not fit into unw_context_t"); - memcpy(&_registers, registers, sizeof(_registers)); -} - -inline Registers_x86::Registers_x86() { - memset(&_registers, 0, sizeof(_registers)); -} - -inline bool Registers_x86::validRegister(int regNum) const { - if (regNum == UNW_REG_IP) - return true; - if (regNum == UNW_REG_SP) - return true; - if (regNum < 0) - return false; - if (regNum > 7) - return false; - return true; -} - -inline uint32_t Registers_x86::getRegister(int regNum) const { - switch (regNum) { - case UNW_REG_IP: - return _registers.__eip; - case UNW_REG_SP: - return _registers.__esp; - case UNW_X86_EAX: - return _registers.__eax; - case UNW_X86_ECX: - return _registers.__ecx; - case UNW_X86_EDX: - return _registers.__edx; - case UNW_X86_EBX: - return _registers.__ebx; + memcpy(&_registers, registers, sizeof(_registers)); +} + +inline Registers_x86::Registers_x86() { + memset(&_registers, 0, sizeof(_registers)); +} + +inline bool Registers_x86::validRegister(int regNum) const { + if (regNum == UNW_REG_IP) + return true; + if (regNum == UNW_REG_SP) + return true; + if (regNum < 0) + return false; + if (regNum > 7) + return false; + return true; +} + +inline uint32_t Registers_x86::getRegister(int regNum) const { + switch (regNum) { + case UNW_REG_IP: + return _registers.__eip; + case UNW_REG_SP: + return _registers.__esp; + case UNW_X86_EAX: + return _registers.__eax; + case UNW_X86_ECX: + return _registers.__ecx; + case UNW_X86_EDX: + return _registers.__edx; + case UNW_X86_EBX: + return _registers.__ebx; #if !defined(__APPLE__) case UNW_X86_ESP: #else - case UNW_X86_EBP: + case UNW_X86_EBP: #endif - return _registers.__ebp; + return _registers.__ebp; #if !defined(__APPLE__) case UNW_X86_EBP: #else - case UNW_X86_ESP: + case UNW_X86_ESP: #endif - return _registers.__esp; - case UNW_X86_ESI: - return _registers.__esi; - case UNW_X86_EDI: - return _registers.__edi; - } - _LIBUNWIND_ABORT("unsupported x86 register"); -} - -inline void Registers_x86::setRegister(int regNum, uint32_t value) { - switch (regNum) { - case UNW_REG_IP: - _registers.__eip = value; - return; - case UNW_REG_SP: - _registers.__esp = value; - return; - case UNW_X86_EAX: - _registers.__eax = value; - return; - case UNW_X86_ECX: - _registers.__ecx = value; - return; - case UNW_X86_EDX: - _registers.__edx = value; - return; - case UNW_X86_EBX: - _registers.__ebx = value; - return; + return _registers.__esp; + case UNW_X86_ESI: + return _registers.__esi; + case UNW_X86_EDI: + return _registers.__edi; + } + _LIBUNWIND_ABORT("unsupported x86 register"); +} + +inline void Registers_x86::setRegister(int regNum, uint32_t value) { + switch (regNum) { + case UNW_REG_IP: + _registers.__eip = value; + return; + case UNW_REG_SP: + _registers.__esp = value; + return; + case UNW_X86_EAX: + _registers.__eax = value; + return; + case UNW_X86_ECX: + _registers.__ecx = value; + return; + case UNW_X86_EDX: + _registers.__edx = value; + return; + case UNW_X86_EBX: + _registers.__ebx = value; + return; #if !defined(__APPLE__) case UNW_X86_ESP: #else - case UNW_X86_EBP: + case UNW_X86_EBP: #endif - _registers.__ebp = value; - return; + _registers.__ebp = value; + return; #if !defined(__APPLE__) case UNW_X86_EBP: #else - case UNW_X86_ESP: + case UNW_X86_ESP: #endif - _registers.__esp = value; - return; - case UNW_X86_ESI: - _registers.__esi = value; - return; - case UNW_X86_EDI: - _registers.__edi = value; - return; - } - _LIBUNWIND_ABORT("unsupported x86 register"); -} - -inline const char *Registers_x86::getRegisterName(int regNum) { - switch (regNum) { - case UNW_REG_IP: - return "ip"; - case UNW_REG_SP: - return "esp"; - case UNW_X86_EAX: - return "eax"; - case UNW_X86_ECX: - return "ecx"; - case UNW_X86_EDX: - return "edx"; - case UNW_X86_EBX: - return "ebx"; - case UNW_X86_EBP: - return "ebp"; - case UNW_X86_ESP: - return "esp"; - case UNW_X86_ESI: - return "esi"; - case UNW_X86_EDI: - return "edi"; - default: - return "unknown register"; - } -} - -inline double Registers_x86::getFloatRegister(int) const { - _LIBUNWIND_ABORT("no x86 float registers"); -} - -inline void Registers_x86::setFloatRegister(int, double) { - _LIBUNWIND_ABORT("no x86 float registers"); -} - -inline v128 Registers_x86::getVectorRegister(int) const { - _LIBUNWIND_ABORT("no x86 vector registers"); -} - -inline void Registers_x86::setVectorRegister(int, v128) { - _LIBUNWIND_ABORT("no x86 vector registers"); -} + _registers.__esp = value; + return; + case UNW_X86_ESI: + _registers.__esi = value; + return; + case UNW_X86_EDI: + _registers.__edi = value; + return; + } + _LIBUNWIND_ABORT("unsupported x86 register"); +} + +inline const char *Registers_x86::getRegisterName(int regNum) { + switch (regNum) { + case UNW_REG_IP: + return "ip"; + case UNW_REG_SP: + return "esp"; + case UNW_X86_EAX: + return "eax"; + case UNW_X86_ECX: + return "ecx"; + case UNW_X86_EDX: + return "edx"; + case UNW_X86_EBX: + return "ebx"; + case UNW_X86_EBP: + return "ebp"; + case UNW_X86_ESP: + return "esp"; + case UNW_X86_ESI: + return "esi"; + case UNW_X86_EDI: + return "edi"; + default: + return "unknown register"; + } +} + +inline double Registers_x86::getFloatRegister(int) const { + _LIBUNWIND_ABORT("no x86 float registers"); +} + +inline void Registers_x86::setFloatRegister(int, double) { + _LIBUNWIND_ABORT("no x86 float registers"); +} + +inline v128 Registers_x86::getVectorRegister(int) const { + _LIBUNWIND_ABORT("no x86 vector registers"); +} + +inline void Registers_x86::setVectorRegister(int, v128) { + _LIBUNWIND_ABORT("no x86 vector registers"); +} #endif // _LIBUNWIND_TARGET_I386 - - + + #if defined(_LIBUNWIND_TARGET_X86_64) -/// Registers_x86_64 holds the register state of a thread in a 64-bit intel -/// process. +/// Registers_x86_64 holds the register state of a thread in a 64-bit intel +/// process. class _LIBUNWIND_HIDDEN Registers_x86_64; extern "C" void __libunwind_Registers_x86_64_jumpto(Registers_x86_64 *); @@ -269,240 +269,240 @@ extern "C" void *__libunwind_cet_get_jump_target() { } #endif -class _LIBUNWIND_HIDDEN Registers_x86_64 { -public: - Registers_x86_64(); - Registers_x86_64(const void *registers); - - bool validRegister(int num) const; - uint64_t getRegister(int num) const; - void setRegister(int num, uint64_t value); - bool validFloatRegister(int) const { return false; } - double getFloatRegister(int num) const; - void setFloatRegister(int num, double value); +class _LIBUNWIND_HIDDEN Registers_x86_64 { +public: + Registers_x86_64(); + Registers_x86_64(const void *registers); + + bool validRegister(int num) const; + uint64_t getRegister(int num) const; + void setRegister(int num, uint64_t value); + bool validFloatRegister(int) const { return false; } + double getFloatRegister(int num) const; + void setFloatRegister(int num, double value); bool validVectorRegister(int) const; - v128 getVectorRegister(int num) const; - void setVectorRegister(int num, v128 value); + v128 getVectorRegister(int num) const; + void setVectorRegister(int num, v128 value); static const char *getRegisterName(int num); void jumpto() { __libunwind_Registers_x86_64_jumpto(this); } static int lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER_X86_64; } static int getArch() { return REGISTERS_X86_64; } - - uint64_t getSP() const { return _registers.__rsp; } - void setSP(uint64_t value) { _registers.__rsp = value; } - uint64_t getIP() const { return _registers.__rip; } - void setIP(uint64_t value) { _registers.__rip = value; } - uint64_t getRBP() const { return _registers.__rbp; } - void setRBP(uint64_t value) { _registers.__rbp = value; } - uint64_t getRBX() const { return _registers.__rbx; } - void setRBX(uint64_t value) { _registers.__rbx = value; } - uint64_t getR12() const { return _registers.__r12; } - void setR12(uint64_t value) { _registers.__r12 = value; } - uint64_t getR13() const { return _registers.__r13; } - void setR13(uint64_t value) { _registers.__r13 = value; } - uint64_t getR14() const { return _registers.__r14; } - void setR14(uint64_t value) { _registers.__r14 = value; } - uint64_t getR15() const { return _registers.__r15; } - void setR15(uint64_t value) { _registers.__r15 = value; } - -private: - struct GPRs { - uint64_t __rax; - uint64_t __rbx; - uint64_t __rcx; - uint64_t __rdx; - uint64_t __rdi; - uint64_t __rsi; - uint64_t __rbp; - uint64_t __rsp; - uint64_t __r8; - uint64_t __r9; - uint64_t __r10; - uint64_t __r11; - uint64_t __r12; - uint64_t __r13; - uint64_t __r14; - uint64_t __r15; - uint64_t __rip; - uint64_t __rflags; - uint64_t __cs; - uint64_t __fs; - uint64_t __gs; + + uint64_t getSP() const { return _registers.__rsp; } + void setSP(uint64_t value) { _registers.__rsp = value; } + uint64_t getIP() const { return _registers.__rip; } + void setIP(uint64_t value) { _registers.__rip = value; } + uint64_t getRBP() const { return _registers.__rbp; } + void setRBP(uint64_t value) { _registers.__rbp = value; } + uint64_t getRBX() const { return _registers.__rbx; } + void setRBX(uint64_t value) { _registers.__rbx = value; } + uint64_t getR12() const { return _registers.__r12; } + void setR12(uint64_t value) { _registers.__r12 = value; } + uint64_t getR13() const { return _registers.__r13; } + void setR13(uint64_t value) { _registers.__r13 = value; } + uint64_t getR14() const { return _registers.__r14; } + void setR14(uint64_t value) { _registers.__r14 = value; } + uint64_t getR15() const { return _registers.__r15; } + void setR15(uint64_t value) { _registers.__r15 = value; } + +private: + struct GPRs { + uint64_t __rax; + uint64_t __rbx; + uint64_t __rcx; + uint64_t __rdx; + uint64_t __rdi; + uint64_t __rsi; + uint64_t __rbp; + uint64_t __rsp; + uint64_t __r8; + uint64_t __r9; + uint64_t __r10; + uint64_t __r11; + uint64_t __r12; + uint64_t __r13; + uint64_t __r14; + uint64_t __r15; + uint64_t __rip; + uint64_t __rflags; + uint64_t __cs; + uint64_t __fs; + uint64_t __gs; #if defined(_WIN64) uint64_t __padding; // 16-byte align #endif - }; - GPRs _registers; + }; + GPRs _registers; #if defined(_WIN64) v128 _xmm[16]; #endif -}; - -inline Registers_x86_64::Registers_x86_64(const void *registers) { +}; + +inline Registers_x86_64::Registers_x86_64(const void *registers) { static_assert((check_fit<Registers_x86_64, unw_context_t>::does_fit), "x86_64 registers do not fit into unw_context_t"); - memcpy(&_registers, registers, sizeof(_registers)); -} - -inline Registers_x86_64::Registers_x86_64() { - memset(&_registers, 0, sizeof(_registers)); -} - -inline bool Registers_x86_64::validRegister(int regNum) const { - if (regNum == UNW_REG_IP) - return true; - if (regNum == UNW_REG_SP) - return true; - if (regNum < 0) - return false; + memcpy(&_registers, registers, sizeof(_registers)); +} + +inline Registers_x86_64::Registers_x86_64() { + memset(&_registers, 0, sizeof(_registers)); +} + +inline bool Registers_x86_64::validRegister(int regNum) const { + if (regNum == UNW_REG_IP) + return true; + if (regNum == UNW_REG_SP) + return true; + if (regNum < 0) + return false; if (regNum > 16) - return false; - return true; -} - -inline uint64_t Registers_x86_64::getRegister(int regNum) const { - switch (regNum) { - case UNW_REG_IP: + return false; + return true; +} + +inline uint64_t Registers_x86_64::getRegister(int regNum) const { + switch (regNum) { + case UNW_REG_IP: case UNW_X86_64_RIP: - return _registers.__rip; - case UNW_REG_SP: - return _registers.__rsp; - case UNW_X86_64_RAX: - return _registers.__rax; - case UNW_X86_64_RDX: - return _registers.__rdx; - case UNW_X86_64_RCX: - return _registers.__rcx; - case UNW_X86_64_RBX: - return _registers.__rbx; - case UNW_X86_64_RSI: - return _registers.__rsi; - case UNW_X86_64_RDI: - return _registers.__rdi; - case UNW_X86_64_RBP: - return _registers.__rbp; - case UNW_X86_64_RSP: - return _registers.__rsp; - case UNW_X86_64_R8: - return _registers.__r8; - case UNW_X86_64_R9: - return _registers.__r9; - case UNW_X86_64_R10: - return _registers.__r10; - case UNW_X86_64_R11: - return _registers.__r11; - case UNW_X86_64_R12: - return _registers.__r12; - case UNW_X86_64_R13: - return _registers.__r13; - case UNW_X86_64_R14: - return _registers.__r14; - case UNW_X86_64_R15: - return _registers.__r15; - } - _LIBUNWIND_ABORT("unsupported x86_64 register"); -} - -inline void Registers_x86_64::setRegister(int regNum, uint64_t value) { - switch (regNum) { - case UNW_REG_IP: + return _registers.__rip; + case UNW_REG_SP: + return _registers.__rsp; + case UNW_X86_64_RAX: + return _registers.__rax; + case UNW_X86_64_RDX: + return _registers.__rdx; + case UNW_X86_64_RCX: + return _registers.__rcx; + case UNW_X86_64_RBX: + return _registers.__rbx; + case UNW_X86_64_RSI: + return _registers.__rsi; + case UNW_X86_64_RDI: + return _registers.__rdi; + case UNW_X86_64_RBP: + return _registers.__rbp; + case UNW_X86_64_RSP: + return _registers.__rsp; + case UNW_X86_64_R8: + return _registers.__r8; + case UNW_X86_64_R9: + return _registers.__r9; + case UNW_X86_64_R10: + return _registers.__r10; + case UNW_X86_64_R11: + return _registers.__r11; + case UNW_X86_64_R12: + return _registers.__r12; + case UNW_X86_64_R13: + return _registers.__r13; + case UNW_X86_64_R14: + return _registers.__r14; + case UNW_X86_64_R15: + return _registers.__r15; + } + _LIBUNWIND_ABORT("unsupported x86_64 register"); +} + +inline void Registers_x86_64::setRegister(int regNum, uint64_t value) { + switch (regNum) { + case UNW_REG_IP: case UNW_X86_64_RIP: - _registers.__rip = value; - return; - case UNW_REG_SP: - _registers.__rsp = value; - return; - case UNW_X86_64_RAX: - _registers.__rax = value; - return; - case UNW_X86_64_RDX: - _registers.__rdx = value; - return; - case UNW_X86_64_RCX: - _registers.__rcx = value; - return; - case UNW_X86_64_RBX: - _registers.__rbx = value; - return; - case UNW_X86_64_RSI: - _registers.__rsi = value; - return; - case UNW_X86_64_RDI: - _registers.__rdi = value; - return; - case UNW_X86_64_RBP: - _registers.__rbp = value; - return; - case UNW_X86_64_RSP: - _registers.__rsp = value; - return; - case UNW_X86_64_R8: - _registers.__r8 = value; - return; - case UNW_X86_64_R9: - _registers.__r9 = value; - return; - case UNW_X86_64_R10: - _registers.__r10 = value; - return; - case UNW_X86_64_R11: - _registers.__r11 = value; - return; - case UNW_X86_64_R12: - _registers.__r12 = value; - return; - case UNW_X86_64_R13: - _registers.__r13 = value; - return; - case UNW_X86_64_R14: - _registers.__r14 = value; - return; - case UNW_X86_64_R15: - _registers.__r15 = value; - return; - } - _LIBUNWIND_ABORT("unsupported x86_64 register"); -} - -inline const char *Registers_x86_64::getRegisterName(int regNum) { - switch (regNum) { - case UNW_REG_IP: + _registers.__rip = value; + return; + case UNW_REG_SP: + _registers.__rsp = value; + return; + case UNW_X86_64_RAX: + _registers.__rax = value; + return; + case UNW_X86_64_RDX: + _registers.__rdx = value; + return; + case UNW_X86_64_RCX: + _registers.__rcx = value; + return; + case UNW_X86_64_RBX: + _registers.__rbx = value; + return; + case UNW_X86_64_RSI: + _registers.__rsi = value; + return; + case UNW_X86_64_RDI: + _registers.__rdi = value; + return; + case UNW_X86_64_RBP: + _registers.__rbp = value; + return; + case UNW_X86_64_RSP: + _registers.__rsp = value; + return; + case UNW_X86_64_R8: + _registers.__r8 = value; + return; + case UNW_X86_64_R9: + _registers.__r9 = value; + return; + case UNW_X86_64_R10: + _registers.__r10 = value; + return; + case UNW_X86_64_R11: + _registers.__r11 = value; + return; + case UNW_X86_64_R12: + _registers.__r12 = value; + return; + case UNW_X86_64_R13: + _registers.__r13 = value; + return; + case UNW_X86_64_R14: + _registers.__r14 = value; + return; + case UNW_X86_64_R15: + _registers.__r15 = value; + return; + } + _LIBUNWIND_ABORT("unsupported x86_64 register"); +} + +inline const char *Registers_x86_64::getRegisterName(int regNum) { + switch (regNum) { + case UNW_REG_IP: case UNW_X86_64_RIP: - return "rip"; - case UNW_REG_SP: - return "rsp"; - case UNW_X86_64_RAX: - return "rax"; - case UNW_X86_64_RDX: - return "rdx"; - case UNW_X86_64_RCX: - return "rcx"; - case UNW_X86_64_RBX: - return "rbx"; - case UNW_X86_64_RSI: - return "rsi"; - case UNW_X86_64_RDI: - return "rdi"; - case UNW_X86_64_RBP: - return "rbp"; - case UNW_X86_64_RSP: - return "rsp"; - case UNW_X86_64_R8: - return "r8"; - case UNW_X86_64_R9: - return "r9"; - case UNW_X86_64_R10: - return "r10"; - case UNW_X86_64_R11: - return "r11"; - case UNW_X86_64_R12: - return "r12"; - case UNW_X86_64_R13: - return "r13"; - case UNW_X86_64_R14: - return "r14"; - case UNW_X86_64_R15: - return "r15"; + return "rip"; + case UNW_REG_SP: + return "rsp"; + case UNW_X86_64_RAX: + return "rax"; + case UNW_X86_64_RDX: + return "rdx"; + case UNW_X86_64_RCX: + return "rcx"; + case UNW_X86_64_RBX: + return "rbx"; + case UNW_X86_64_RSI: + return "rsi"; + case UNW_X86_64_RDI: + return "rdi"; + case UNW_X86_64_RBP: + return "rbp"; + case UNW_X86_64_RSP: + return "rsp"; + case UNW_X86_64_R8: + return "r8"; + case UNW_X86_64_R9: + return "r9"; + case UNW_X86_64_R10: + return "r10"; + case UNW_X86_64_R11: + return "r11"; + case UNW_X86_64_R12: + return "r12"; + case UNW_X86_64_R13: + return "r13"; + case UNW_X86_64_R14: + return "r14"; + case UNW_X86_64_R15: + return "r15"; case UNW_X86_64_XMM0: return "xmm0"; case UNW_X86_64_XMM1: @@ -535,19 +535,19 @@ inline const char *Registers_x86_64::getRegisterName(int regNum) { return "xmm14"; case UNW_X86_64_XMM15: return "xmm15"; - default: - return "unknown register"; - } -} - -inline double Registers_x86_64::getFloatRegister(int) const { - _LIBUNWIND_ABORT("no x86_64 float registers"); -} - -inline void Registers_x86_64::setFloatRegister(int, double) { - _LIBUNWIND_ABORT("no x86_64 float registers"); -} - + default: + return "unknown register"; + } +} + +inline double Registers_x86_64::getFloatRegister(int) const { + _LIBUNWIND_ABORT("no x86_64 float registers"); +} + +inline void Registers_x86_64::setFloatRegister(int, double) { + _LIBUNWIND_ABORT("no x86_64 float registers"); +} + inline bool Registers_x86_64::validVectorRegister(int regNum) const { #if defined(_WIN64) if (regNum < UNW_X86_64_XMM0) @@ -567,588 +567,588 @@ inline v128 Registers_x86_64::getVectorRegister(int regNum) const { return _xmm[regNum - UNW_X86_64_XMM0]; #else (void)regNum; // suppress unused parameter warning - _LIBUNWIND_ABORT("no x86_64 vector registers"); + _LIBUNWIND_ABORT("no x86_64 vector registers"); #endif -} - +} + inline void Registers_x86_64::setVectorRegister(int regNum, v128 value) { #if defined(_WIN64) assert(validVectorRegister(regNum)); _xmm[regNum - UNW_X86_64_XMM0] = value; #else (void)regNum; (void)value; // suppress unused parameter warnings - _LIBUNWIND_ABORT("no x86_64 vector registers"); + _LIBUNWIND_ABORT("no x86_64 vector registers"); #endif -} +} #endif // _LIBUNWIND_TARGET_X86_64 - - + + #if defined(_LIBUNWIND_TARGET_PPC) -/// Registers_ppc holds the register state of a thread in a 32-bit PowerPC -/// process. -class _LIBUNWIND_HIDDEN Registers_ppc { -public: - Registers_ppc(); - Registers_ppc(const void *registers); - - bool validRegister(int num) const; - uint32_t getRegister(int num) const; - void setRegister(int num, uint32_t value); - bool validFloatRegister(int num) const; - double getFloatRegister(int num) const; - void setFloatRegister(int num, double value); - bool validVectorRegister(int num) const; - v128 getVectorRegister(int num) const; - void setVectorRegister(int num, v128 value); +/// Registers_ppc holds the register state of a thread in a 32-bit PowerPC +/// process. +class _LIBUNWIND_HIDDEN Registers_ppc { +public: + Registers_ppc(); + Registers_ppc(const void *registers); + + bool validRegister(int num) const; + uint32_t getRegister(int num) const; + void setRegister(int num, uint32_t value); + bool validFloatRegister(int num) const; + double getFloatRegister(int num) const; + void setFloatRegister(int num, double value); + bool validVectorRegister(int num) const; + v128 getVectorRegister(int num) const; + void setVectorRegister(int num, v128 value); static const char *getRegisterName(int num); - void jumpto(); + void jumpto(); static int lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER_PPC; } static int getArch() { return REGISTERS_PPC; } - - uint64_t getSP() const { return _registers.__r1; } - void setSP(uint32_t value) { _registers.__r1 = value; } - uint64_t getIP() const { return _registers.__srr0; } - void setIP(uint32_t value) { _registers.__srr0 = value; } - -private: - struct ppc_thread_state_t { - unsigned int __srr0; /* Instruction address register (PC) */ - unsigned int __srr1; /* Machine state register (supervisor) */ - unsigned int __r0; - unsigned int __r1; - unsigned int __r2; - unsigned int __r3; - unsigned int __r4; - unsigned int __r5; - unsigned int __r6; - unsigned int __r7; - unsigned int __r8; - unsigned int __r9; - unsigned int __r10; - unsigned int __r11; - unsigned int __r12; - unsigned int __r13; - unsigned int __r14; - unsigned int __r15; - unsigned int __r16; - unsigned int __r17; - unsigned int __r18; - unsigned int __r19; - unsigned int __r20; - unsigned int __r21; - unsigned int __r22; - unsigned int __r23; - unsigned int __r24; - unsigned int __r25; - unsigned int __r26; - unsigned int __r27; - unsigned int __r28; - unsigned int __r29; - unsigned int __r30; - unsigned int __r31; - unsigned int __cr; /* Condition register */ - unsigned int __xer; /* User's integer exception register */ - unsigned int __lr; /* Link register */ - unsigned int __ctr; /* Count register */ - unsigned int __mq; /* MQ register (601 only) */ - unsigned int __vrsave; /* Vector Save Register */ - }; - - struct ppc_float_state_t { - double __fpregs[32]; - - unsigned int __fpscr_pad; /* fpscr is 64 bits, 32 bits of rubbish */ - unsigned int __fpscr; /* floating point status register */ - }; - - ppc_thread_state_t _registers; - ppc_float_state_t _floatRegisters; - v128 _vectorRegisters[32]; // offset 424 -}; - -inline Registers_ppc::Registers_ppc(const void *registers) { + + uint64_t getSP() const { return _registers.__r1; } + void setSP(uint32_t value) { _registers.__r1 = value; } + uint64_t getIP() const { return _registers.__srr0; } + void setIP(uint32_t value) { _registers.__srr0 = value; } + +private: + struct ppc_thread_state_t { + unsigned int __srr0; /* Instruction address register (PC) */ + unsigned int __srr1; /* Machine state register (supervisor) */ + unsigned int __r0; + unsigned int __r1; + unsigned int __r2; + unsigned int __r3; + unsigned int __r4; + unsigned int __r5; + unsigned int __r6; + unsigned int __r7; + unsigned int __r8; + unsigned int __r9; + unsigned int __r10; + unsigned int __r11; + unsigned int __r12; + unsigned int __r13; + unsigned int __r14; + unsigned int __r15; + unsigned int __r16; + unsigned int __r17; + unsigned int __r18; + unsigned int __r19; + unsigned int __r20; + unsigned int __r21; + unsigned int __r22; + unsigned int __r23; + unsigned int __r24; + unsigned int __r25; + unsigned int __r26; + unsigned int __r27; + unsigned int __r28; + unsigned int __r29; + unsigned int __r30; + unsigned int __r31; + unsigned int __cr; /* Condition register */ + unsigned int __xer; /* User's integer exception register */ + unsigned int __lr; /* Link register */ + unsigned int __ctr; /* Count register */ + unsigned int __mq; /* MQ register (601 only) */ + unsigned int __vrsave; /* Vector Save Register */ + }; + + struct ppc_float_state_t { + double __fpregs[32]; + + unsigned int __fpscr_pad; /* fpscr is 64 bits, 32 bits of rubbish */ + unsigned int __fpscr; /* floating point status register */ + }; + + ppc_thread_state_t _registers; + ppc_float_state_t _floatRegisters; + v128 _vectorRegisters[32]; // offset 424 +}; + +inline Registers_ppc::Registers_ppc(const void *registers) { static_assert((check_fit<Registers_ppc, unw_context_t>::does_fit), "ppc registers do not fit into unw_context_t"); - memcpy(&_registers, static_cast<const uint8_t *>(registers), - sizeof(_registers)); - static_assert(sizeof(ppc_thread_state_t) == 160, - "expected float register offset to be 160"); - memcpy(&_floatRegisters, - static_cast<const uint8_t *>(registers) + sizeof(ppc_thread_state_t), - sizeof(_floatRegisters)); - static_assert(sizeof(ppc_thread_state_t) + sizeof(ppc_float_state_t) == 424, - "expected vector register offset to be 424 bytes"); - memcpy(_vectorRegisters, - static_cast<const uint8_t *>(registers) + sizeof(ppc_thread_state_t) + - sizeof(ppc_float_state_t), - sizeof(_vectorRegisters)); -} - -inline Registers_ppc::Registers_ppc() { - memset(&_registers, 0, sizeof(_registers)); - memset(&_floatRegisters, 0, sizeof(_floatRegisters)); - memset(&_vectorRegisters, 0, sizeof(_vectorRegisters)); -} - -inline bool Registers_ppc::validRegister(int regNum) const { - if (regNum == UNW_REG_IP) - return true; - if (regNum == UNW_REG_SP) - return true; - if (regNum == UNW_PPC_VRSAVE) - return true; - if (regNum < 0) - return false; - if (regNum <= UNW_PPC_R31) - return true; - if (regNum == UNW_PPC_MQ) - return true; - if (regNum == UNW_PPC_LR) - return true; - if (regNum == UNW_PPC_CTR) - return true; - if ((UNW_PPC_CR0 <= regNum) && (regNum <= UNW_PPC_CR7)) - return true; - return false; -} - -inline uint32_t Registers_ppc::getRegister(int regNum) const { - switch (regNum) { - case UNW_REG_IP: - return _registers.__srr0; - case UNW_REG_SP: - return _registers.__r1; - case UNW_PPC_R0: - return _registers.__r0; - case UNW_PPC_R1: - return _registers.__r1; - case UNW_PPC_R2: - return _registers.__r2; - case UNW_PPC_R3: - return _registers.__r3; - case UNW_PPC_R4: - return _registers.__r4; - case UNW_PPC_R5: - return _registers.__r5; - case UNW_PPC_R6: - return _registers.__r6; - case UNW_PPC_R7: - return _registers.__r7; - case UNW_PPC_R8: - return _registers.__r8; - case UNW_PPC_R9: - return _registers.__r9; - case UNW_PPC_R10: - return _registers.__r10; - case UNW_PPC_R11: - return _registers.__r11; - case UNW_PPC_R12: - return _registers.__r12; - case UNW_PPC_R13: - return _registers.__r13; - case UNW_PPC_R14: - return _registers.__r14; - case UNW_PPC_R15: - return _registers.__r15; - case UNW_PPC_R16: - return _registers.__r16; - case UNW_PPC_R17: - return _registers.__r17; - case UNW_PPC_R18: - return _registers.__r18; - case UNW_PPC_R19: - return _registers.__r19; - case UNW_PPC_R20: - return _registers.__r20; - case UNW_PPC_R21: - return _registers.__r21; - case UNW_PPC_R22: - return _registers.__r22; - case UNW_PPC_R23: - return _registers.__r23; - case UNW_PPC_R24: - return _registers.__r24; - case UNW_PPC_R25: - return _registers.__r25; - case UNW_PPC_R26: - return _registers.__r26; - case UNW_PPC_R27: - return _registers.__r27; - case UNW_PPC_R28: - return _registers.__r28; - case UNW_PPC_R29: - return _registers.__r29; - case UNW_PPC_R30: - return _registers.__r30; - case UNW_PPC_R31: - return _registers.__r31; - case UNW_PPC_LR: - return _registers.__lr; - case UNW_PPC_CR0: - return (_registers.__cr & 0xF0000000); - case UNW_PPC_CR1: - return (_registers.__cr & 0x0F000000); - case UNW_PPC_CR2: - return (_registers.__cr & 0x00F00000); - case UNW_PPC_CR3: - return (_registers.__cr & 0x000F0000); - case UNW_PPC_CR4: - return (_registers.__cr & 0x0000F000); - case UNW_PPC_CR5: - return (_registers.__cr & 0x00000F00); - case UNW_PPC_CR6: - return (_registers.__cr & 0x000000F0); - case UNW_PPC_CR7: - return (_registers.__cr & 0x0000000F); - case UNW_PPC_VRSAVE: - return _registers.__vrsave; - } - _LIBUNWIND_ABORT("unsupported ppc register"); -} - -inline void Registers_ppc::setRegister(int regNum, uint32_t value) { - //fprintf(stderr, "Registers_ppc::setRegister(%d, 0x%08X)\n", regNum, value); - switch (regNum) { - case UNW_REG_IP: - _registers.__srr0 = value; - return; - case UNW_REG_SP: - _registers.__r1 = value; - return; - case UNW_PPC_R0: - _registers.__r0 = value; - return; - case UNW_PPC_R1: - _registers.__r1 = value; - return; - case UNW_PPC_R2: - _registers.__r2 = value; - return; - case UNW_PPC_R3: - _registers.__r3 = value; - return; - case UNW_PPC_R4: - _registers.__r4 = value; - return; - case UNW_PPC_R5: - _registers.__r5 = value; - return; - case UNW_PPC_R6: - _registers.__r6 = value; - return; - case UNW_PPC_R7: - _registers.__r7 = value; - return; - case UNW_PPC_R8: - _registers.__r8 = value; - return; - case UNW_PPC_R9: - _registers.__r9 = value; - return; - case UNW_PPC_R10: - _registers.__r10 = value; - return; - case UNW_PPC_R11: - _registers.__r11 = value; - return; - case UNW_PPC_R12: - _registers.__r12 = value; - return; - case UNW_PPC_R13: - _registers.__r13 = value; - return; - case UNW_PPC_R14: - _registers.__r14 = value; - return; - case UNW_PPC_R15: - _registers.__r15 = value; - return; - case UNW_PPC_R16: - _registers.__r16 = value; - return; - case UNW_PPC_R17: - _registers.__r17 = value; - return; - case UNW_PPC_R18: - _registers.__r18 = value; - return; - case UNW_PPC_R19: - _registers.__r19 = value; - return; - case UNW_PPC_R20: - _registers.__r20 = value; - return; - case UNW_PPC_R21: - _registers.__r21 = value; - return; - case UNW_PPC_R22: - _registers.__r22 = value; - return; - case UNW_PPC_R23: - _registers.__r23 = value; - return; - case UNW_PPC_R24: - _registers.__r24 = value; - return; - case UNW_PPC_R25: - _registers.__r25 = value; - return; - case UNW_PPC_R26: - _registers.__r26 = value; - return; - case UNW_PPC_R27: - _registers.__r27 = value; - return; - case UNW_PPC_R28: - _registers.__r28 = value; - return; - case UNW_PPC_R29: - _registers.__r29 = value; - return; - case UNW_PPC_R30: - _registers.__r30 = value; - return; - case UNW_PPC_R31: - _registers.__r31 = value; - return; - case UNW_PPC_MQ: - _registers.__mq = value; - return; - case UNW_PPC_LR: - _registers.__lr = value; - return; - case UNW_PPC_CTR: - _registers.__ctr = value; - return; - case UNW_PPC_CR0: - _registers.__cr &= 0x0FFFFFFF; - _registers.__cr |= (value & 0xF0000000); - return; - case UNW_PPC_CR1: - _registers.__cr &= 0xF0FFFFFF; - _registers.__cr |= (value & 0x0F000000); - return; - case UNW_PPC_CR2: - _registers.__cr &= 0xFF0FFFFF; - _registers.__cr |= (value & 0x00F00000); - return; - case UNW_PPC_CR3: - _registers.__cr &= 0xFFF0FFFF; - _registers.__cr |= (value & 0x000F0000); - return; - case UNW_PPC_CR4: - _registers.__cr &= 0xFFFF0FFF; - _registers.__cr |= (value & 0x0000F000); - return; - case UNW_PPC_CR5: - _registers.__cr &= 0xFFFFF0FF; - _registers.__cr |= (value & 0x00000F00); - return; - case UNW_PPC_CR6: - _registers.__cr &= 0xFFFFFF0F; - _registers.__cr |= (value & 0x000000F0); - return; - case UNW_PPC_CR7: - _registers.__cr &= 0xFFFFFFF0; - _registers.__cr |= (value & 0x0000000F); - return; - case UNW_PPC_VRSAVE: - _registers.__vrsave = value; - return; - // not saved - return; - case UNW_PPC_XER: - _registers.__xer = value; - return; - case UNW_PPC_AP: - case UNW_PPC_VSCR: - case UNW_PPC_SPEFSCR: - // not saved - return; - } - _LIBUNWIND_ABORT("unsupported ppc register"); -} - -inline bool Registers_ppc::validFloatRegister(int regNum) const { - if (regNum < UNW_PPC_F0) - return false; - if (regNum > UNW_PPC_F31) - return false; - return true; -} - -inline double Registers_ppc::getFloatRegister(int regNum) const { - assert(validFloatRegister(regNum)); - return _floatRegisters.__fpregs[regNum - UNW_PPC_F0]; -} - -inline void Registers_ppc::setFloatRegister(int regNum, double value) { - assert(validFloatRegister(regNum)); - _floatRegisters.__fpregs[regNum - UNW_PPC_F0] = value; -} - -inline bool Registers_ppc::validVectorRegister(int regNum) const { - if (regNum < UNW_PPC_V0) - return false; - if (regNum > UNW_PPC_V31) - return false; - return true; -} - -inline v128 Registers_ppc::getVectorRegister(int regNum) const { - assert(validVectorRegister(regNum)); - v128 result = _vectorRegisters[regNum - UNW_PPC_V0]; - return result; -} - -inline void Registers_ppc::setVectorRegister(int regNum, v128 value) { - assert(validVectorRegister(regNum)); - _vectorRegisters[regNum - UNW_PPC_V0] = value; -} - -inline const char *Registers_ppc::getRegisterName(int regNum) { - switch (regNum) { - case UNW_REG_IP: - return "ip"; - case UNW_REG_SP: - return "sp"; - case UNW_PPC_R0: - return "r0"; - case UNW_PPC_R1: - return "r1"; - case UNW_PPC_R2: - return "r2"; - case UNW_PPC_R3: - return "r3"; - case UNW_PPC_R4: - return "r4"; - case UNW_PPC_R5: - return "r5"; - case UNW_PPC_R6: - return "r6"; - case UNW_PPC_R7: - return "r7"; - case UNW_PPC_R8: - return "r8"; - case UNW_PPC_R9: - return "r9"; - case UNW_PPC_R10: - return "r10"; - case UNW_PPC_R11: - return "r11"; - case UNW_PPC_R12: - return "r12"; - case UNW_PPC_R13: - return "r13"; - case UNW_PPC_R14: - return "r14"; - case UNW_PPC_R15: - return "r15"; - case UNW_PPC_R16: - return "r16"; - case UNW_PPC_R17: - return "r17"; - case UNW_PPC_R18: - return "r18"; - case UNW_PPC_R19: - return "r19"; - case UNW_PPC_R20: - return "r20"; - case UNW_PPC_R21: - return "r21"; - case UNW_PPC_R22: - return "r22"; - case UNW_PPC_R23: - return "r23"; - case UNW_PPC_R24: - return "r24"; - case UNW_PPC_R25: - return "r25"; - case UNW_PPC_R26: - return "r26"; - case UNW_PPC_R27: - return "r27"; - case UNW_PPC_R28: - return "r28"; - case UNW_PPC_R29: - return "r29"; - case UNW_PPC_R30: - return "r30"; - case UNW_PPC_R31: - return "r31"; - case UNW_PPC_F0: - return "fp0"; - case UNW_PPC_F1: - return "fp1"; - case UNW_PPC_F2: - return "fp2"; - case UNW_PPC_F3: - return "fp3"; - case UNW_PPC_F4: - return "fp4"; - case UNW_PPC_F5: - return "fp5"; - case UNW_PPC_F6: - return "fp6"; - case UNW_PPC_F7: - return "fp7"; - case UNW_PPC_F8: - return "fp8"; - case UNW_PPC_F9: - return "fp9"; - case UNW_PPC_F10: - return "fp10"; - case UNW_PPC_F11: - return "fp11"; - case UNW_PPC_F12: - return "fp12"; - case UNW_PPC_F13: - return "fp13"; - case UNW_PPC_F14: - return "fp14"; - case UNW_PPC_F15: - return "fp15"; - case UNW_PPC_F16: - return "fp16"; - case UNW_PPC_F17: - return "fp17"; - case UNW_PPC_F18: - return "fp18"; - case UNW_PPC_F19: - return "fp19"; - case UNW_PPC_F20: - return "fp20"; - case UNW_PPC_F21: - return "fp21"; - case UNW_PPC_F22: - return "fp22"; - case UNW_PPC_F23: - return "fp23"; - case UNW_PPC_F24: - return "fp24"; - case UNW_PPC_F25: - return "fp25"; - case UNW_PPC_F26: - return "fp26"; - case UNW_PPC_F27: - return "fp27"; - case UNW_PPC_F28: - return "fp28"; - case UNW_PPC_F29: - return "fp29"; - case UNW_PPC_F30: - return "fp30"; - case UNW_PPC_F31: - return "fp31"; - case UNW_PPC_LR: - return "lr"; - default: - return "unknown register"; - } - -} + memcpy(&_registers, static_cast<const uint8_t *>(registers), + sizeof(_registers)); + static_assert(sizeof(ppc_thread_state_t) == 160, + "expected float register offset to be 160"); + memcpy(&_floatRegisters, + static_cast<const uint8_t *>(registers) + sizeof(ppc_thread_state_t), + sizeof(_floatRegisters)); + static_assert(sizeof(ppc_thread_state_t) + sizeof(ppc_float_state_t) == 424, + "expected vector register offset to be 424 bytes"); + memcpy(_vectorRegisters, + static_cast<const uint8_t *>(registers) + sizeof(ppc_thread_state_t) + + sizeof(ppc_float_state_t), + sizeof(_vectorRegisters)); +} + +inline Registers_ppc::Registers_ppc() { + memset(&_registers, 0, sizeof(_registers)); + memset(&_floatRegisters, 0, sizeof(_floatRegisters)); + memset(&_vectorRegisters, 0, sizeof(_vectorRegisters)); +} + +inline bool Registers_ppc::validRegister(int regNum) const { + if (regNum == UNW_REG_IP) + return true; + if (regNum == UNW_REG_SP) + return true; + if (regNum == UNW_PPC_VRSAVE) + return true; + if (regNum < 0) + return false; + if (regNum <= UNW_PPC_R31) + return true; + if (regNum == UNW_PPC_MQ) + return true; + if (regNum == UNW_PPC_LR) + return true; + if (regNum == UNW_PPC_CTR) + return true; + if ((UNW_PPC_CR0 <= regNum) && (regNum <= UNW_PPC_CR7)) + return true; + return false; +} + +inline uint32_t Registers_ppc::getRegister(int regNum) const { + switch (regNum) { + case UNW_REG_IP: + return _registers.__srr0; + case UNW_REG_SP: + return _registers.__r1; + case UNW_PPC_R0: + return _registers.__r0; + case UNW_PPC_R1: + return _registers.__r1; + case UNW_PPC_R2: + return _registers.__r2; + case UNW_PPC_R3: + return _registers.__r3; + case UNW_PPC_R4: + return _registers.__r4; + case UNW_PPC_R5: + return _registers.__r5; + case UNW_PPC_R6: + return _registers.__r6; + case UNW_PPC_R7: + return _registers.__r7; + case UNW_PPC_R8: + return _registers.__r8; + case UNW_PPC_R9: + return _registers.__r9; + case UNW_PPC_R10: + return _registers.__r10; + case UNW_PPC_R11: + return _registers.__r11; + case UNW_PPC_R12: + return _registers.__r12; + case UNW_PPC_R13: + return _registers.__r13; + case UNW_PPC_R14: + return _registers.__r14; + case UNW_PPC_R15: + return _registers.__r15; + case UNW_PPC_R16: + return _registers.__r16; + case UNW_PPC_R17: + return _registers.__r17; + case UNW_PPC_R18: + return _registers.__r18; + case UNW_PPC_R19: + return _registers.__r19; + case UNW_PPC_R20: + return _registers.__r20; + case UNW_PPC_R21: + return _registers.__r21; + case UNW_PPC_R22: + return _registers.__r22; + case UNW_PPC_R23: + return _registers.__r23; + case UNW_PPC_R24: + return _registers.__r24; + case UNW_PPC_R25: + return _registers.__r25; + case UNW_PPC_R26: + return _registers.__r26; + case UNW_PPC_R27: + return _registers.__r27; + case UNW_PPC_R28: + return _registers.__r28; + case UNW_PPC_R29: + return _registers.__r29; + case UNW_PPC_R30: + return _registers.__r30; + case UNW_PPC_R31: + return _registers.__r31; + case UNW_PPC_LR: + return _registers.__lr; + case UNW_PPC_CR0: + return (_registers.__cr & 0xF0000000); + case UNW_PPC_CR1: + return (_registers.__cr & 0x0F000000); + case UNW_PPC_CR2: + return (_registers.__cr & 0x00F00000); + case UNW_PPC_CR3: + return (_registers.__cr & 0x000F0000); + case UNW_PPC_CR4: + return (_registers.__cr & 0x0000F000); + case UNW_PPC_CR5: + return (_registers.__cr & 0x00000F00); + case UNW_PPC_CR6: + return (_registers.__cr & 0x000000F0); + case UNW_PPC_CR7: + return (_registers.__cr & 0x0000000F); + case UNW_PPC_VRSAVE: + return _registers.__vrsave; + } + _LIBUNWIND_ABORT("unsupported ppc register"); +} + +inline void Registers_ppc::setRegister(int regNum, uint32_t value) { + //fprintf(stderr, "Registers_ppc::setRegister(%d, 0x%08X)\n", regNum, value); + switch (regNum) { + case UNW_REG_IP: + _registers.__srr0 = value; + return; + case UNW_REG_SP: + _registers.__r1 = value; + return; + case UNW_PPC_R0: + _registers.__r0 = value; + return; + case UNW_PPC_R1: + _registers.__r1 = value; + return; + case UNW_PPC_R2: + _registers.__r2 = value; + return; + case UNW_PPC_R3: + _registers.__r3 = value; + return; + case UNW_PPC_R4: + _registers.__r4 = value; + return; + case UNW_PPC_R5: + _registers.__r5 = value; + return; + case UNW_PPC_R6: + _registers.__r6 = value; + return; + case UNW_PPC_R7: + _registers.__r7 = value; + return; + case UNW_PPC_R8: + _registers.__r8 = value; + return; + case UNW_PPC_R9: + _registers.__r9 = value; + return; + case UNW_PPC_R10: + _registers.__r10 = value; + return; + case UNW_PPC_R11: + _registers.__r11 = value; + return; + case UNW_PPC_R12: + _registers.__r12 = value; + return; + case UNW_PPC_R13: + _registers.__r13 = value; + return; + case UNW_PPC_R14: + _registers.__r14 = value; + return; + case UNW_PPC_R15: + _registers.__r15 = value; + return; + case UNW_PPC_R16: + _registers.__r16 = value; + return; + case UNW_PPC_R17: + _registers.__r17 = value; + return; + case UNW_PPC_R18: + _registers.__r18 = value; + return; + case UNW_PPC_R19: + _registers.__r19 = value; + return; + case UNW_PPC_R20: + _registers.__r20 = value; + return; + case UNW_PPC_R21: + _registers.__r21 = value; + return; + case UNW_PPC_R22: + _registers.__r22 = value; + return; + case UNW_PPC_R23: + _registers.__r23 = value; + return; + case UNW_PPC_R24: + _registers.__r24 = value; + return; + case UNW_PPC_R25: + _registers.__r25 = value; + return; + case UNW_PPC_R26: + _registers.__r26 = value; + return; + case UNW_PPC_R27: + _registers.__r27 = value; + return; + case UNW_PPC_R28: + _registers.__r28 = value; + return; + case UNW_PPC_R29: + _registers.__r29 = value; + return; + case UNW_PPC_R30: + _registers.__r30 = value; + return; + case UNW_PPC_R31: + _registers.__r31 = value; + return; + case UNW_PPC_MQ: + _registers.__mq = value; + return; + case UNW_PPC_LR: + _registers.__lr = value; + return; + case UNW_PPC_CTR: + _registers.__ctr = value; + return; + case UNW_PPC_CR0: + _registers.__cr &= 0x0FFFFFFF; + _registers.__cr |= (value & 0xF0000000); + return; + case UNW_PPC_CR1: + _registers.__cr &= 0xF0FFFFFF; + _registers.__cr |= (value & 0x0F000000); + return; + case UNW_PPC_CR2: + _registers.__cr &= 0xFF0FFFFF; + _registers.__cr |= (value & 0x00F00000); + return; + case UNW_PPC_CR3: + _registers.__cr &= 0xFFF0FFFF; + _registers.__cr |= (value & 0x000F0000); + return; + case UNW_PPC_CR4: + _registers.__cr &= 0xFFFF0FFF; + _registers.__cr |= (value & 0x0000F000); + return; + case UNW_PPC_CR5: + _registers.__cr &= 0xFFFFF0FF; + _registers.__cr |= (value & 0x00000F00); + return; + case UNW_PPC_CR6: + _registers.__cr &= 0xFFFFFF0F; + _registers.__cr |= (value & 0x000000F0); + return; + case UNW_PPC_CR7: + _registers.__cr &= 0xFFFFFFF0; + _registers.__cr |= (value & 0x0000000F); + return; + case UNW_PPC_VRSAVE: + _registers.__vrsave = value; + return; + // not saved + return; + case UNW_PPC_XER: + _registers.__xer = value; + return; + case UNW_PPC_AP: + case UNW_PPC_VSCR: + case UNW_PPC_SPEFSCR: + // not saved + return; + } + _LIBUNWIND_ABORT("unsupported ppc register"); +} + +inline bool Registers_ppc::validFloatRegister(int regNum) const { + if (regNum < UNW_PPC_F0) + return false; + if (regNum > UNW_PPC_F31) + return false; + return true; +} + +inline double Registers_ppc::getFloatRegister(int regNum) const { + assert(validFloatRegister(regNum)); + return _floatRegisters.__fpregs[regNum - UNW_PPC_F0]; +} + +inline void Registers_ppc::setFloatRegister(int regNum, double value) { + assert(validFloatRegister(regNum)); + _floatRegisters.__fpregs[regNum - UNW_PPC_F0] = value; +} + +inline bool Registers_ppc::validVectorRegister(int regNum) const { + if (regNum < UNW_PPC_V0) + return false; + if (regNum > UNW_PPC_V31) + return false; + return true; +} + +inline v128 Registers_ppc::getVectorRegister(int regNum) const { + assert(validVectorRegister(regNum)); + v128 result = _vectorRegisters[regNum - UNW_PPC_V0]; + return result; +} + +inline void Registers_ppc::setVectorRegister(int regNum, v128 value) { + assert(validVectorRegister(regNum)); + _vectorRegisters[regNum - UNW_PPC_V0] = value; +} + +inline const char *Registers_ppc::getRegisterName(int regNum) { + switch (regNum) { + case UNW_REG_IP: + return "ip"; + case UNW_REG_SP: + return "sp"; + case UNW_PPC_R0: + return "r0"; + case UNW_PPC_R1: + return "r1"; + case UNW_PPC_R2: + return "r2"; + case UNW_PPC_R3: + return "r3"; + case UNW_PPC_R4: + return "r4"; + case UNW_PPC_R5: + return "r5"; + case UNW_PPC_R6: + return "r6"; + case UNW_PPC_R7: + return "r7"; + case UNW_PPC_R8: + return "r8"; + case UNW_PPC_R9: + return "r9"; + case UNW_PPC_R10: + return "r10"; + case UNW_PPC_R11: + return "r11"; + case UNW_PPC_R12: + return "r12"; + case UNW_PPC_R13: + return "r13"; + case UNW_PPC_R14: + return "r14"; + case UNW_PPC_R15: + return "r15"; + case UNW_PPC_R16: + return "r16"; + case UNW_PPC_R17: + return "r17"; + case UNW_PPC_R18: + return "r18"; + case UNW_PPC_R19: + return "r19"; + case UNW_PPC_R20: + return "r20"; + case UNW_PPC_R21: + return "r21"; + case UNW_PPC_R22: + return "r22"; + case UNW_PPC_R23: + return "r23"; + case UNW_PPC_R24: + return "r24"; + case UNW_PPC_R25: + return "r25"; + case UNW_PPC_R26: + return "r26"; + case UNW_PPC_R27: + return "r27"; + case UNW_PPC_R28: + return "r28"; + case UNW_PPC_R29: + return "r29"; + case UNW_PPC_R30: + return "r30"; + case UNW_PPC_R31: + return "r31"; + case UNW_PPC_F0: + return "fp0"; + case UNW_PPC_F1: + return "fp1"; + case UNW_PPC_F2: + return "fp2"; + case UNW_PPC_F3: + return "fp3"; + case UNW_PPC_F4: + return "fp4"; + case UNW_PPC_F5: + return "fp5"; + case UNW_PPC_F6: + return "fp6"; + case UNW_PPC_F7: + return "fp7"; + case UNW_PPC_F8: + return "fp8"; + case UNW_PPC_F9: + return "fp9"; + case UNW_PPC_F10: + return "fp10"; + case UNW_PPC_F11: + return "fp11"; + case UNW_PPC_F12: + return "fp12"; + case UNW_PPC_F13: + return "fp13"; + case UNW_PPC_F14: + return "fp14"; + case UNW_PPC_F15: + return "fp15"; + case UNW_PPC_F16: + return "fp16"; + case UNW_PPC_F17: + return "fp17"; + case UNW_PPC_F18: + return "fp18"; + case UNW_PPC_F19: + return "fp19"; + case UNW_PPC_F20: + return "fp20"; + case UNW_PPC_F21: + return "fp21"; + case UNW_PPC_F22: + return "fp22"; + case UNW_PPC_F23: + return "fp23"; + case UNW_PPC_F24: + return "fp24"; + case UNW_PPC_F25: + return "fp25"; + case UNW_PPC_F26: + return "fp26"; + case UNW_PPC_F27: + return "fp27"; + case UNW_PPC_F28: + return "fp28"; + case UNW_PPC_F29: + return "fp29"; + case UNW_PPC_F30: + return "fp30"; + case UNW_PPC_F31: + return "fp31"; + case UNW_PPC_LR: + return "lr"; + default: + return "unknown register"; + } + +} #endif // _LIBUNWIND_TARGET_PPC - + #if defined(_LIBUNWIND_TARGET_PPC64) /// Registers_ppc64 holds the register state of a thread in a 64-bit PowerPC /// process. @@ -1156,7 +1156,7 @@ class _LIBUNWIND_HIDDEN Registers_ppc64 { public: Registers_ppc64(); Registers_ppc64(const void *registers); - + bool validRegister(int num) const; uint64_t getRegister(int num) const; void setRegister(int num, uint64_t value); @@ -1793,91 +1793,91 @@ inline const char *Registers_ppc64::getRegisterName(int regNum) { #if defined(_LIBUNWIND_TARGET_AARCH64) -/// Registers_arm64 holds the register state of a thread in a 64-bit arm -/// process. +/// Registers_arm64 holds the register state of a thread in a 64-bit arm +/// process. class _LIBUNWIND_HIDDEN Registers_arm64; extern "C" void __libunwind_Registers_arm64_jumpto(Registers_arm64 *); -class _LIBUNWIND_HIDDEN Registers_arm64 { -public: - Registers_arm64(); - Registers_arm64(const void *registers); - - bool validRegister(int num) const; - uint64_t getRegister(int num) const; - void setRegister(int num, uint64_t value); - bool validFloatRegister(int num) const; - double getFloatRegister(int num) const; - void setFloatRegister(int num, double value); - bool validVectorRegister(int num) const; - v128 getVectorRegister(int num) const; - void setVectorRegister(int num, v128 value); +class _LIBUNWIND_HIDDEN Registers_arm64 { +public: + Registers_arm64(); + Registers_arm64(const void *registers); + + bool validRegister(int num) const; + uint64_t getRegister(int num) const; + void setRegister(int num, uint64_t value); + bool validFloatRegister(int num) const; + double getFloatRegister(int num) const; + void setFloatRegister(int num, double value); + bool validVectorRegister(int num) const; + v128 getVectorRegister(int num) const; + void setVectorRegister(int num, v128 value); static const char *getRegisterName(int num); void jumpto() { __libunwind_Registers_arm64_jumpto(this); } static int lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER_ARM64; } static int getArch() { return REGISTERS_ARM64; } - - uint64_t getSP() const { return _registers.__sp; } - void setSP(uint64_t value) { _registers.__sp = value; } - uint64_t getIP() const { return _registers.__pc; } - void setIP(uint64_t value) { _registers.__pc = value; } - uint64_t getFP() const { return _registers.__fp; } - void setFP(uint64_t value) { _registers.__fp = value; } - -private: - struct GPRs { - uint64_t __x[29]; // x0-x28 - uint64_t __fp; // Frame pointer x29 - uint64_t __lr; // Link register x30 - uint64_t __sp; // Stack pointer x31 - uint64_t __pc; // Program counter + + uint64_t getSP() const { return _registers.__sp; } + void setSP(uint64_t value) { _registers.__sp = value; } + uint64_t getIP() const { return _registers.__pc; } + void setIP(uint64_t value) { _registers.__pc = value; } + uint64_t getFP() const { return _registers.__fp; } + void setFP(uint64_t value) { _registers.__fp = value; } + +private: + struct GPRs { + uint64_t __x[29]; // x0-x28 + uint64_t __fp; // Frame pointer x29 + uint64_t __lr; // Link register x30 + uint64_t __sp; // Stack pointer x31 + uint64_t __pc; // Program counter uint64_t __ra_sign_state; // RA sign state register - }; - - GPRs _registers; - double _vectorHalfRegisters[32]; - // Currently only the lower double in 128-bit vectore registers - // is perserved during unwinding. We could define new register - // numbers (> 96) which mean whole vector registers, then this - // struct would need to change to contain whole vector registers. -}; - -inline Registers_arm64::Registers_arm64(const void *registers) { + }; + + GPRs _registers; + double _vectorHalfRegisters[32]; + // Currently only the lower double in 128-bit vectore registers + // is perserved during unwinding. We could define new register + // numbers (> 96) which mean whole vector registers, then this + // struct would need to change to contain whole vector registers. +}; + +inline Registers_arm64::Registers_arm64(const void *registers) { static_assert((check_fit<Registers_arm64, unw_context_t>::does_fit), "arm64 registers do not fit into unw_context_t"); - memcpy(&_registers, registers, sizeof(_registers)); - static_assert(sizeof(GPRs) == 0x110, - "expected VFP registers to be at offset 272"); - memcpy(_vectorHalfRegisters, - static_cast<const uint8_t *>(registers) + sizeof(GPRs), - sizeof(_vectorHalfRegisters)); -} - -inline Registers_arm64::Registers_arm64() { - memset(&_registers, 0, sizeof(_registers)); - memset(&_vectorHalfRegisters, 0, sizeof(_vectorHalfRegisters)); -} - -inline bool Registers_arm64::validRegister(int regNum) const { - if (regNum == UNW_REG_IP) - return true; - if (regNum == UNW_REG_SP) - return true; - if (regNum < 0) - return false; - if (regNum > 95) - return false; + memcpy(&_registers, registers, sizeof(_registers)); + static_assert(sizeof(GPRs) == 0x110, + "expected VFP registers to be at offset 272"); + memcpy(_vectorHalfRegisters, + static_cast<const uint8_t *>(registers) + sizeof(GPRs), + sizeof(_vectorHalfRegisters)); +} + +inline Registers_arm64::Registers_arm64() { + memset(&_registers, 0, sizeof(_registers)); + memset(&_vectorHalfRegisters, 0, sizeof(_vectorHalfRegisters)); +} + +inline bool Registers_arm64::validRegister(int regNum) const { + if (regNum == UNW_REG_IP) + return true; + if (regNum == UNW_REG_SP) + return true; + if (regNum < 0) + return false; + if (regNum > 95) + return false; if (regNum == UNW_AARCH64_RA_SIGN_STATE) return true; if ((regNum > 32) && (regNum < 64)) - return false; - return true; -} - -inline uint64_t Registers_arm64::getRegister(int regNum) const { + return false; + return true; +} + +inline uint64_t Registers_arm64::getRegister(int regNum) const { if (regNum == UNW_REG_IP || regNum == UNW_AARCH64_PC) - return _registers.__pc; + return _registers.__pc; if (regNum == UNW_REG_SP || regNum == UNW_AARCH64_SP) - return _registers.__sp; + return _registers.__sp; if (regNum == UNW_AARCH64_RA_SIGN_STATE) return _registers.__ra_sign_state; if (regNum == UNW_AARCH64_FP) @@ -1885,15 +1885,15 @@ inline uint64_t Registers_arm64::getRegister(int regNum) const { if (regNum == UNW_AARCH64_LR) return _registers.__lr; if ((regNum >= 0) && (regNum < 29)) - return _registers.__x[regNum]; - _LIBUNWIND_ABORT("unsupported arm64 register"); -} - -inline void Registers_arm64::setRegister(int regNum, uint64_t value) { + return _registers.__x[regNum]; + _LIBUNWIND_ABORT("unsupported arm64 register"); +} + +inline void Registers_arm64::setRegister(int regNum, uint64_t value) { if (regNum == UNW_REG_IP || regNum == UNW_AARCH64_PC) - _registers.__pc = value; + _registers.__pc = value; else if (regNum == UNW_REG_SP || regNum == UNW_AARCH64_SP) - _registers.__sp = value; + _registers.__sp = value; else if (regNum == UNW_AARCH64_RA_SIGN_STATE) _registers.__ra_sign_state = value; else if (regNum == UNW_AARCH64_FP) @@ -1901,246 +1901,246 @@ inline void Registers_arm64::setRegister(int regNum, uint64_t value) { else if (regNum == UNW_AARCH64_LR) _registers.__lr = value; else if ((regNum >= 0) && (regNum < 29)) - _registers.__x[regNum] = value; - else - _LIBUNWIND_ABORT("unsupported arm64 register"); -} - -inline const char *Registers_arm64::getRegisterName(int regNum) { - switch (regNum) { - case UNW_REG_IP: - return "pc"; - case UNW_REG_SP: - return "sp"; + _registers.__x[regNum] = value; + else + _LIBUNWIND_ABORT("unsupported arm64 register"); +} + +inline const char *Registers_arm64::getRegisterName(int regNum) { + switch (regNum) { + case UNW_REG_IP: + return "pc"; + case UNW_REG_SP: + return "sp"; case UNW_AARCH64_X0: - return "x0"; + return "x0"; case UNW_AARCH64_X1: - return "x1"; + return "x1"; case UNW_AARCH64_X2: - return "x2"; + return "x2"; case UNW_AARCH64_X3: - return "x3"; + return "x3"; case UNW_AARCH64_X4: - return "x4"; + return "x4"; case UNW_AARCH64_X5: - return "x5"; + return "x5"; case UNW_AARCH64_X6: - return "x6"; + return "x6"; case UNW_AARCH64_X7: - return "x7"; + return "x7"; case UNW_AARCH64_X8: - return "x8"; + return "x8"; case UNW_AARCH64_X9: - return "x9"; + return "x9"; case UNW_AARCH64_X10: - return "x10"; + return "x10"; case UNW_AARCH64_X11: - return "x11"; + return "x11"; case UNW_AARCH64_X12: - return "x12"; + return "x12"; case UNW_AARCH64_X13: - return "x13"; + return "x13"; case UNW_AARCH64_X14: - return "x14"; + return "x14"; case UNW_AARCH64_X15: - return "x15"; + return "x15"; case UNW_AARCH64_X16: - return "x16"; + return "x16"; case UNW_AARCH64_X17: - return "x17"; + return "x17"; case UNW_AARCH64_X18: - return "x18"; + return "x18"; case UNW_AARCH64_X19: - return "x19"; + return "x19"; case UNW_AARCH64_X20: - return "x20"; + return "x20"; case UNW_AARCH64_X21: - return "x21"; + return "x21"; case UNW_AARCH64_X22: - return "x22"; + return "x22"; case UNW_AARCH64_X23: - return "x23"; + return "x23"; case UNW_AARCH64_X24: - return "x24"; + return "x24"; case UNW_AARCH64_X25: - return "x25"; + return "x25"; case UNW_AARCH64_X26: - return "x26"; + return "x26"; case UNW_AARCH64_X27: - return "x27"; + return "x27"; case UNW_AARCH64_X28: - return "x28"; + return "x28"; case UNW_AARCH64_FP: - return "fp"; + return "fp"; case UNW_AARCH64_LR: - return "lr"; + return "lr"; case UNW_AARCH64_SP: - return "sp"; + return "sp"; case UNW_AARCH64_PC: return "pc"; case UNW_AARCH64_V0: - return "d0"; + return "d0"; case UNW_AARCH64_V1: - return "d1"; + return "d1"; case UNW_AARCH64_V2: - return "d2"; + return "d2"; case UNW_AARCH64_V3: - return "d3"; + return "d3"; case UNW_AARCH64_V4: - return "d4"; + return "d4"; case UNW_AARCH64_V5: - return "d5"; + return "d5"; case UNW_AARCH64_V6: - return "d6"; + return "d6"; case UNW_AARCH64_V7: - return "d7"; + return "d7"; case UNW_AARCH64_V8: - return "d8"; + return "d8"; case UNW_AARCH64_V9: - return "d9"; + return "d9"; case UNW_AARCH64_V10: - return "d10"; + return "d10"; case UNW_AARCH64_V11: - return "d11"; + return "d11"; case UNW_AARCH64_V12: - return "d12"; + return "d12"; case UNW_AARCH64_V13: - return "d13"; + return "d13"; case UNW_AARCH64_V14: - return "d14"; + return "d14"; case UNW_AARCH64_V15: - return "d15"; + return "d15"; case UNW_AARCH64_V16: - return "d16"; + return "d16"; case UNW_AARCH64_V17: - return "d17"; + return "d17"; case UNW_AARCH64_V18: - return "d18"; + return "d18"; case UNW_AARCH64_V19: - return "d19"; + return "d19"; case UNW_AARCH64_V20: - return "d20"; + return "d20"; case UNW_AARCH64_V21: - return "d21"; + return "d21"; case UNW_AARCH64_V22: - return "d22"; + return "d22"; case UNW_AARCH64_V23: - return "d23"; + return "d23"; case UNW_AARCH64_V24: - return "d24"; + return "d24"; case UNW_AARCH64_V25: - return "d25"; + return "d25"; case UNW_AARCH64_V26: - return "d26"; + return "d26"; case UNW_AARCH64_V27: - return "d27"; + return "d27"; case UNW_AARCH64_V28: - return "d28"; + return "d28"; case UNW_AARCH64_V29: - return "d29"; + return "d29"; case UNW_AARCH64_V30: - return "d30"; + return "d30"; case UNW_AARCH64_V31: - return "d31"; - default: - return "unknown register"; - } -} - -inline bool Registers_arm64::validFloatRegister(int regNum) const { + return "d31"; + default: + return "unknown register"; + } +} + +inline bool Registers_arm64::validFloatRegister(int regNum) const { if (regNum < UNW_AARCH64_V0) - return false; + return false; if (regNum > UNW_AARCH64_V31) - return false; - return true; -} - -inline double Registers_arm64::getFloatRegister(int regNum) const { - assert(validFloatRegister(regNum)); + return false; + return true; +} + +inline double Registers_arm64::getFloatRegister(int regNum) const { + assert(validFloatRegister(regNum)); return _vectorHalfRegisters[regNum - UNW_AARCH64_V0]; -} - -inline void Registers_arm64::setFloatRegister(int regNum, double value) { - assert(validFloatRegister(regNum)); +} + +inline void Registers_arm64::setFloatRegister(int regNum, double value) { + assert(validFloatRegister(regNum)); _vectorHalfRegisters[regNum - UNW_AARCH64_V0] = value; -} - -inline bool Registers_arm64::validVectorRegister(int) const { - return false; -} - -inline v128 Registers_arm64::getVectorRegister(int) const { - _LIBUNWIND_ABORT("no arm64 vector register support yet"); -} - -inline void Registers_arm64::setVectorRegister(int, v128) { - _LIBUNWIND_ABORT("no arm64 vector register support yet"); -} +} + +inline bool Registers_arm64::validVectorRegister(int) const { + return false; +} + +inline v128 Registers_arm64::getVectorRegister(int) const { + _LIBUNWIND_ABORT("no arm64 vector register support yet"); +} + +inline void Registers_arm64::setVectorRegister(int, v128) { + _LIBUNWIND_ABORT("no arm64 vector register support yet"); +} #endif // _LIBUNWIND_TARGET_AARCH64 - + #if defined(_LIBUNWIND_TARGET_ARM) -/// Registers_arm holds the register state of a thread in a 32-bit arm -/// process. -/// -/// NOTE: Assumes VFPv3. On ARM processors without a floating point unit, -/// this uses more memory than required. -class _LIBUNWIND_HIDDEN Registers_arm { -public: - Registers_arm(); - Registers_arm(const void *registers); - - bool validRegister(int num) const; +/// Registers_arm holds the register state of a thread in a 32-bit arm +/// process. +/// +/// NOTE: Assumes VFPv3. On ARM processors without a floating point unit, +/// this uses more memory than required. +class _LIBUNWIND_HIDDEN Registers_arm { +public: + Registers_arm(); + Registers_arm(const void *registers); + + bool validRegister(int num) const; uint32_t getRegister(int num) const; - void setRegister(int num, uint32_t value); - bool validFloatRegister(int num) const; - unw_fpreg_t getFloatRegister(int num); - void setFloatRegister(int num, unw_fpreg_t value); - bool validVectorRegister(int num) const; - v128 getVectorRegister(int num) const; - void setVectorRegister(int num, v128 value); + void setRegister(int num, uint32_t value); + bool validFloatRegister(int num) const; + unw_fpreg_t getFloatRegister(int num); + void setFloatRegister(int num, unw_fpreg_t value); + bool validVectorRegister(int num) const; + v128 getVectorRegister(int num) const; + void setVectorRegister(int num, v128 value); static const char *getRegisterName(int num); - void jumpto() { - restoreSavedFloatRegisters(); - restoreCoreAndJumpTo(); - } + void jumpto() { + restoreSavedFloatRegisters(); + restoreCoreAndJumpTo(); + } static int lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER_ARM; } static int getArch() { return REGISTERS_ARM; } - - uint32_t getSP() const { return _registers.__sp; } - void setSP(uint32_t value) { _registers.__sp = value; } - uint32_t getIP() const { return _registers.__pc; } - void setIP(uint32_t value) { _registers.__pc = value; } - - void saveVFPAsX() { - assert(_use_X_for_vfp_save || !_saved_vfp_d0_d15); - _use_X_for_vfp_save = true; - } - - void restoreSavedFloatRegisters() { - if (_saved_vfp_d0_d15) { - if (_use_X_for_vfp_save) - restoreVFPWithFLDMX(_vfp_d0_d15_pad); - else - restoreVFPWithFLDMD(_vfp_d0_d15_pad); - } - if (_saved_vfp_d16_d31) - restoreVFPv3(_vfp_d16_d31); + + uint32_t getSP() const { return _registers.__sp; } + void setSP(uint32_t value) { _registers.__sp = value; } + uint32_t getIP() const { return _registers.__pc; } + void setIP(uint32_t value) { _registers.__pc = value; } + + void saveVFPAsX() { + assert(_use_X_for_vfp_save || !_saved_vfp_d0_d15); + _use_X_for_vfp_save = true; + } + + void restoreSavedFloatRegisters() { + if (_saved_vfp_d0_d15) { + if (_use_X_for_vfp_save) + restoreVFPWithFLDMX(_vfp_d0_d15_pad); + else + restoreVFPWithFLDMD(_vfp_d0_d15_pad); + } + if (_saved_vfp_d16_d31) + restoreVFPv3(_vfp_d16_d31); #if defined(__ARM_WMMX) - if (_saved_iwmmx) - restoreiWMMX(_iwmmx); - if (_saved_iwmmx_control) - restoreiWMMXControl(_iwmmx_control); + if (_saved_iwmmx) + restoreiWMMX(_iwmmx); + if (_saved_iwmmx_control) + restoreiWMMXControl(_iwmmx_control); #endif - } - -private: - struct GPRs { - uint32_t __r[13]; // r0-r12 - uint32_t __sp; // Stack pointer r13 - uint32_t __lr; // Link register r14 - uint32_t __pc; // Program counter r15 - }; - + } + +private: + struct GPRs { + uint32_t __r[13]; // r0-r12 + uint32_t __sp; // Stack pointer r13 + uint32_t __lr; // Link register r14 + uint32_t __pc; // Program counter r15 + }; + struct PseudoRegisters { uint32_t __pac; // Return Authentication Code (PAC) }; @@ -2153,94 +2153,94 @@ private: static void restoreVFPv3(void*); #if defined(__ARM_WMMX) static void saveiWMMX(void*); - static void saveiWMMXControl(uint32_t*); + static void saveiWMMXControl(uint32_t*); static void restoreiWMMX(void*); - static void restoreiWMMXControl(uint32_t*); + static void restoreiWMMXControl(uint32_t*); #endif - void restoreCoreAndJumpTo(); - - // ARM registers - GPRs _registers; + void restoreCoreAndJumpTo(); + + // ARM registers + GPRs _registers; PseudoRegisters _pseudo_registers; - - // We save floating point registers lazily because we can't know ahead of - // time which ones are used. See EHABI #4.7. - - // Whether D0-D15 are saved in the FTSMX instead of FSTMD format. - // - // See EHABI #7.5 that explains how matching instruction sequences for load - // and store need to be used to correctly restore the exact register bits. - bool _use_X_for_vfp_save; - // Whether VFP D0-D15 are saved. - bool _saved_vfp_d0_d15; - // Whether VFPv3 D16-D31 are saved. - bool _saved_vfp_d16_d31; - // VFP registers D0-D15, + padding if saved using FSTMX - unw_fpreg_t _vfp_d0_d15_pad[17]; - // VFPv3 registers D16-D31, always saved using FSTMD - unw_fpreg_t _vfp_d16_d31[16]; + + // We save floating point registers lazily because we can't know ahead of + // time which ones are used. See EHABI #4.7. + + // Whether D0-D15 are saved in the FTSMX instead of FSTMD format. + // + // See EHABI #7.5 that explains how matching instruction sequences for load + // and store need to be used to correctly restore the exact register bits. + bool _use_X_for_vfp_save; + // Whether VFP D0-D15 are saved. + bool _saved_vfp_d0_d15; + // Whether VFPv3 D16-D31 are saved. + bool _saved_vfp_d16_d31; + // VFP registers D0-D15, + padding if saved using FSTMX + unw_fpreg_t _vfp_d0_d15_pad[17]; + // VFPv3 registers D16-D31, always saved using FSTMD + unw_fpreg_t _vfp_d16_d31[16]; #if defined(__ARM_WMMX) // Whether iWMMX data registers are saved. bool _saved_iwmmx; // Whether iWMMX control registers are saved. mutable bool _saved_iwmmx_control; - // iWMMX registers - unw_fpreg_t _iwmmx[16]; - // iWMMX control registers + // iWMMX registers + unw_fpreg_t _iwmmx[16]; + // iWMMX control registers mutable uint32_t _iwmmx_control[4]; #endif -}; - -inline Registers_arm::Registers_arm(const void *registers) - : _use_X_for_vfp_save(false), - _saved_vfp_d0_d15(false), +}; + +inline Registers_arm::Registers_arm(const void *registers) + : _use_X_for_vfp_save(false), + _saved_vfp_d0_d15(false), _saved_vfp_d16_d31(false) { static_assert((check_fit<Registers_arm, unw_context_t>::does_fit), "arm registers do not fit into unw_context_t"); // See __unw_getcontext() note about data. - memcpy(&_registers, registers, sizeof(_registers)); + memcpy(&_registers, registers, sizeof(_registers)); memset(&_pseudo_registers, 0, sizeof(_pseudo_registers)); - memset(&_vfp_d0_d15_pad, 0, sizeof(_vfp_d0_d15_pad)); - memset(&_vfp_d16_d31, 0, sizeof(_vfp_d16_d31)); + memset(&_vfp_d0_d15_pad, 0, sizeof(_vfp_d0_d15_pad)); + memset(&_vfp_d16_d31, 0, sizeof(_vfp_d16_d31)); #if defined(__ARM_WMMX) _saved_iwmmx = false; _saved_iwmmx_control = false; - memset(&_iwmmx, 0, sizeof(_iwmmx)); - memset(&_iwmmx_control, 0, sizeof(_iwmmx_control)); + memset(&_iwmmx, 0, sizeof(_iwmmx)); + memset(&_iwmmx_control, 0, sizeof(_iwmmx_control)); #endif -} - -inline Registers_arm::Registers_arm() - : _use_X_for_vfp_save(false), - _saved_vfp_d0_d15(false), +} + +inline Registers_arm::Registers_arm() + : _use_X_for_vfp_save(false), + _saved_vfp_d0_d15(false), _saved_vfp_d16_d31(false) { - memset(&_registers, 0, sizeof(_registers)); + memset(&_registers, 0, sizeof(_registers)); memset(&_pseudo_registers, 0, sizeof(_pseudo_registers)); - memset(&_vfp_d0_d15_pad, 0, sizeof(_vfp_d0_d15_pad)); - memset(&_vfp_d16_d31, 0, sizeof(_vfp_d16_d31)); + memset(&_vfp_d0_d15_pad, 0, sizeof(_vfp_d0_d15_pad)); + memset(&_vfp_d16_d31, 0, sizeof(_vfp_d16_d31)); #if defined(__ARM_WMMX) _saved_iwmmx = false; _saved_iwmmx_control = false; - memset(&_iwmmx, 0, sizeof(_iwmmx)); - memset(&_iwmmx_control, 0, sizeof(_iwmmx_control)); + memset(&_iwmmx, 0, sizeof(_iwmmx)); + memset(&_iwmmx_control, 0, sizeof(_iwmmx_control)); #endif -} - -inline bool Registers_arm::validRegister(int regNum) const { - // Returns true for all non-VFP registers supported by the EHABI - // virtual register set (VRS). - if (regNum == UNW_REG_IP) - return true; +} - if (regNum == UNW_REG_SP) - return true; +inline bool Registers_arm::validRegister(int regNum) const { + // Returns true for all non-VFP registers supported by the EHABI + // virtual register set (VRS). + if (regNum == UNW_REG_IP) + return true; - if (regNum >= UNW_ARM_R0 && regNum <= UNW_ARM_R15) - return true; + if (regNum == UNW_REG_SP) + return true; + + if (regNum >= UNW_ARM_R0 && regNum <= UNW_ARM_R15) + return true; #if defined(__ARM_WMMX) - if (regNum >= UNW_ARM_WC0 && regNum <= UNW_ARM_WC3) - return true; + if (regNum >= UNW_ARM_WC0 && regNum <= UNW_ARM_WC3) + return true; #endif #ifdef __ARM_FEATURE_PAUTH @@ -2248,30 +2248,30 @@ inline bool Registers_arm::validRegister(int regNum) const { return true; #endif - return false; -} - + return false; +} + inline uint32_t Registers_arm::getRegister(int regNum) const { - if (regNum == UNW_REG_SP || regNum == UNW_ARM_SP) - return _registers.__sp; + if (regNum == UNW_REG_SP || regNum == UNW_ARM_SP) + return _registers.__sp; - if (regNum == UNW_ARM_LR) - return _registers.__lr; + if (regNum == UNW_ARM_LR) + return _registers.__lr; - if (regNum == UNW_REG_IP || regNum == UNW_ARM_IP) - return _registers.__pc; + if (regNum == UNW_REG_IP || regNum == UNW_ARM_IP) + return _registers.__pc; - if (regNum >= UNW_ARM_R0 && regNum <= UNW_ARM_R12) - return _registers.__r[regNum]; + if (regNum >= UNW_ARM_R0 && regNum <= UNW_ARM_R12) + return _registers.__r[regNum]; #if defined(__ARM_WMMX) - if (regNum >= UNW_ARM_WC0 && regNum <= UNW_ARM_WC3) { - if (!_saved_iwmmx_control) { - _saved_iwmmx_control = true; - saveiWMMXControl(_iwmmx_control); - } - return _iwmmx_control[regNum - UNW_ARM_WC0]; - } + if (regNum >= UNW_ARM_WC0 && regNum <= UNW_ARM_WC3) { + if (!_saved_iwmmx_control) { + _saved_iwmmx_control = true; + saveiWMMXControl(_iwmmx_control); + } + return _iwmmx_control[regNum - UNW_ARM_WC0]; + } #endif #ifdef __ARM_FEATURE_PAUTH @@ -2279,37 +2279,37 @@ inline uint32_t Registers_arm::getRegister(int regNum) const { return _pseudo_registers.__pac; #endif - _LIBUNWIND_ABORT("unsupported arm register"); -} - -inline void Registers_arm::setRegister(int regNum, uint32_t value) { + _LIBUNWIND_ABORT("unsupported arm register"); +} + +inline void Registers_arm::setRegister(int regNum, uint32_t value) { if (regNum == UNW_REG_SP || regNum == UNW_ARM_SP) { - _registers.__sp = value; + _registers.__sp = value; return; } if (regNum == UNW_ARM_LR) { - _registers.__lr = value; + _registers.__lr = value; return; } if (regNum == UNW_REG_IP || regNum == UNW_ARM_IP) { - _registers.__pc = value; + _registers.__pc = value; return; } if (regNum >= UNW_ARM_R0 && regNum <= UNW_ARM_R12) { - _registers.__r[regNum] = value; + _registers.__r[regNum] = value; return; } #if defined(__ARM_WMMX) if (regNum >= UNW_ARM_WC0 && regNum <= UNW_ARM_WC3) { - if (!_saved_iwmmx_control) { - _saved_iwmmx_control = true; - saveiWMMXControl(_iwmmx_control); - } - _iwmmx_control[regNum - UNW_ARM_WC0] = value; + if (!_saved_iwmmx_control) { + _saved_iwmmx_control = true; + saveiWMMXControl(_iwmmx_control); + } + _iwmmx_control[regNum - UNW_ARM_WC0] = value; return; } #endif @@ -2320,465 +2320,465 @@ inline void Registers_arm::setRegister(int regNum, uint32_t value) { } _LIBUNWIND_ABORT("unsupported arm register"); -} - -inline const char *Registers_arm::getRegisterName(int regNum) { - switch (regNum) { - case UNW_REG_IP: - case UNW_ARM_IP: // UNW_ARM_R15 is alias - return "pc"; - case UNW_ARM_LR: // UNW_ARM_R14 is alias - return "lr"; - case UNW_REG_SP: - case UNW_ARM_SP: // UNW_ARM_R13 is alias - return "sp"; - case UNW_ARM_R0: - return "r0"; - case UNW_ARM_R1: - return "r1"; - case UNW_ARM_R2: - return "r2"; - case UNW_ARM_R3: - return "r3"; - case UNW_ARM_R4: - return "r4"; - case UNW_ARM_R5: - return "r5"; - case UNW_ARM_R6: - return "r6"; - case UNW_ARM_R7: - return "r7"; - case UNW_ARM_R8: - return "r8"; - case UNW_ARM_R9: - return "r9"; - case UNW_ARM_R10: - return "r10"; - case UNW_ARM_R11: - return "r11"; - case UNW_ARM_R12: - return "r12"; - case UNW_ARM_S0: - return "s0"; - case UNW_ARM_S1: - return "s1"; - case UNW_ARM_S2: - return "s2"; - case UNW_ARM_S3: - return "s3"; - case UNW_ARM_S4: - return "s4"; - case UNW_ARM_S5: - return "s5"; - case UNW_ARM_S6: - return "s6"; - case UNW_ARM_S7: - return "s7"; - case UNW_ARM_S8: - return "s8"; - case UNW_ARM_S9: - return "s9"; - case UNW_ARM_S10: - return "s10"; - case UNW_ARM_S11: - return "s11"; - case UNW_ARM_S12: - return "s12"; - case UNW_ARM_S13: - return "s13"; - case UNW_ARM_S14: - return "s14"; - case UNW_ARM_S15: - return "s15"; - case UNW_ARM_S16: - return "s16"; - case UNW_ARM_S17: - return "s17"; - case UNW_ARM_S18: - return "s18"; - case UNW_ARM_S19: - return "s19"; - case UNW_ARM_S20: - return "s20"; - case UNW_ARM_S21: - return "s21"; - case UNW_ARM_S22: - return "s22"; - case UNW_ARM_S23: - return "s23"; - case UNW_ARM_S24: - return "s24"; - case UNW_ARM_S25: - return "s25"; - case UNW_ARM_S26: - return "s26"; - case UNW_ARM_S27: - return "s27"; - case UNW_ARM_S28: - return "s28"; - case UNW_ARM_S29: - return "s29"; - case UNW_ARM_S30: - return "s30"; - case UNW_ARM_S31: - return "s31"; - case UNW_ARM_D0: - return "d0"; - case UNW_ARM_D1: - return "d1"; - case UNW_ARM_D2: - return "d2"; - case UNW_ARM_D3: - return "d3"; - case UNW_ARM_D4: - return "d4"; - case UNW_ARM_D5: - return "d5"; - case UNW_ARM_D6: - return "d6"; - case UNW_ARM_D7: - return "d7"; - case UNW_ARM_D8: - return "d8"; - case UNW_ARM_D9: - return "d9"; - case UNW_ARM_D10: - return "d10"; - case UNW_ARM_D11: - return "d11"; - case UNW_ARM_D12: - return "d12"; - case UNW_ARM_D13: - return "d13"; - case UNW_ARM_D14: - return "d14"; - case UNW_ARM_D15: - return "d15"; - case UNW_ARM_D16: - return "d16"; - case UNW_ARM_D17: - return "d17"; - case UNW_ARM_D18: - return "d18"; - case UNW_ARM_D19: - return "d19"; - case UNW_ARM_D20: - return "d20"; - case UNW_ARM_D21: - return "d21"; - case UNW_ARM_D22: - return "d22"; - case UNW_ARM_D23: - return "d23"; - case UNW_ARM_D24: - return "d24"; - case UNW_ARM_D25: - return "d25"; - case UNW_ARM_D26: - return "d26"; - case UNW_ARM_D27: - return "d27"; - case UNW_ARM_D28: - return "d28"; - case UNW_ARM_D29: - return "d29"; - case UNW_ARM_D30: - return "d30"; - case UNW_ARM_D31: - return "d31"; - default: - return "unknown register"; - } -} - -inline bool Registers_arm::validFloatRegister(int regNum) const { - // NOTE: Consider the intel MMX registers floating points so the +} + +inline const char *Registers_arm::getRegisterName(int regNum) { + switch (regNum) { + case UNW_REG_IP: + case UNW_ARM_IP: // UNW_ARM_R15 is alias + return "pc"; + case UNW_ARM_LR: // UNW_ARM_R14 is alias + return "lr"; + case UNW_REG_SP: + case UNW_ARM_SP: // UNW_ARM_R13 is alias + return "sp"; + case UNW_ARM_R0: + return "r0"; + case UNW_ARM_R1: + return "r1"; + case UNW_ARM_R2: + return "r2"; + case UNW_ARM_R3: + return "r3"; + case UNW_ARM_R4: + return "r4"; + case UNW_ARM_R5: + return "r5"; + case UNW_ARM_R6: + return "r6"; + case UNW_ARM_R7: + return "r7"; + case UNW_ARM_R8: + return "r8"; + case UNW_ARM_R9: + return "r9"; + case UNW_ARM_R10: + return "r10"; + case UNW_ARM_R11: + return "r11"; + case UNW_ARM_R12: + return "r12"; + case UNW_ARM_S0: + return "s0"; + case UNW_ARM_S1: + return "s1"; + case UNW_ARM_S2: + return "s2"; + case UNW_ARM_S3: + return "s3"; + case UNW_ARM_S4: + return "s4"; + case UNW_ARM_S5: + return "s5"; + case UNW_ARM_S6: + return "s6"; + case UNW_ARM_S7: + return "s7"; + case UNW_ARM_S8: + return "s8"; + case UNW_ARM_S9: + return "s9"; + case UNW_ARM_S10: + return "s10"; + case UNW_ARM_S11: + return "s11"; + case UNW_ARM_S12: + return "s12"; + case UNW_ARM_S13: + return "s13"; + case UNW_ARM_S14: + return "s14"; + case UNW_ARM_S15: + return "s15"; + case UNW_ARM_S16: + return "s16"; + case UNW_ARM_S17: + return "s17"; + case UNW_ARM_S18: + return "s18"; + case UNW_ARM_S19: + return "s19"; + case UNW_ARM_S20: + return "s20"; + case UNW_ARM_S21: + return "s21"; + case UNW_ARM_S22: + return "s22"; + case UNW_ARM_S23: + return "s23"; + case UNW_ARM_S24: + return "s24"; + case UNW_ARM_S25: + return "s25"; + case UNW_ARM_S26: + return "s26"; + case UNW_ARM_S27: + return "s27"; + case UNW_ARM_S28: + return "s28"; + case UNW_ARM_S29: + return "s29"; + case UNW_ARM_S30: + return "s30"; + case UNW_ARM_S31: + return "s31"; + case UNW_ARM_D0: + return "d0"; + case UNW_ARM_D1: + return "d1"; + case UNW_ARM_D2: + return "d2"; + case UNW_ARM_D3: + return "d3"; + case UNW_ARM_D4: + return "d4"; + case UNW_ARM_D5: + return "d5"; + case UNW_ARM_D6: + return "d6"; + case UNW_ARM_D7: + return "d7"; + case UNW_ARM_D8: + return "d8"; + case UNW_ARM_D9: + return "d9"; + case UNW_ARM_D10: + return "d10"; + case UNW_ARM_D11: + return "d11"; + case UNW_ARM_D12: + return "d12"; + case UNW_ARM_D13: + return "d13"; + case UNW_ARM_D14: + return "d14"; + case UNW_ARM_D15: + return "d15"; + case UNW_ARM_D16: + return "d16"; + case UNW_ARM_D17: + return "d17"; + case UNW_ARM_D18: + return "d18"; + case UNW_ARM_D19: + return "d19"; + case UNW_ARM_D20: + return "d20"; + case UNW_ARM_D21: + return "d21"; + case UNW_ARM_D22: + return "d22"; + case UNW_ARM_D23: + return "d23"; + case UNW_ARM_D24: + return "d24"; + case UNW_ARM_D25: + return "d25"; + case UNW_ARM_D26: + return "d26"; + case UNW_ARM_D27: + return "d27"; + case UNW_ARM_D28: + return "d28"; + case UNW_ARM_D29: + return "d29"; + case UNW_ARM_D30: + return "d30"; + case UNW_ARM_D31: + return "d31"; + default: + return "unknown register"; + } +} + +inline bool Registers_arm::validFloatRegister(int regNum) const { + // NOTE: Consider the intel MMX registers floating points so the // __unw_get_fpreg can be used to transmit the 64-bit data back. - return ((regNum >= UNW_ARM_D0) && (regNum <= UNW_ARM_D31)) + return ((regNum >= UNW_ARM_D0) && (regNum <= UNW_ARM_D31)) #if defined(__ARM_WMMX) || ((regNum >= UNW_ARM_WR0) && (regNum <= UNW_ARM_WR15)) #endif ; -} - -inline unw_fpreg_t Registers_arm::getFloatRegister(int regNum) { - if (regNum >= UNW_ARM_D0 && regNum <= UNW_ARM_D15) { - if (!_saved_vfp_d0_d15) { - _saved_vfp_d0_d15 = true; - if (_use_X_for_vfp_save) - saveVFPWithFSTMX(_vfp_d0_d15_pad); - else - saveVFPWithFSTMD(_vfp_d0_d15_pad); - } - return _vfp_d0_d15_pad[regNum - UNW_ARM_D0]; +} + +inline unw_fpreg_t Registers_arm::getFloatRegister(int regNum) { + if (regNum >= UNW_ARM_D0 && regNum <= UNW_ARM_D15) { + if (!_saved_vfp_d0_d15) { + _saved_vfp_d0_d15 = true; + if (_use_X_for_vfp_save) + saveVFPWithFSTMX(_vfp_d0_d15_pad); + else + saveVFPWithFSTMD(_vfp_d0_d15_pad); + } + return _vfp_d0_d15_pad[regNum - UNW_ARM_D0]; } if (regNum >= UNW_ARM_D16 && regNum <= UNW_ARM_D31) { - if (!_saved_vfp_d16_d31) { - _saved_vfp_d16_d31 = true; - saveVFPv3(_vfp_d16_d31); - } - return _vfp_d16_d31[regNum - UNW_ARM_D16]; + if (!_saved_vfp_d16_d31) { + _saved_vfp_d16_d31 = true; + saveVFPv3(_vfp_d16_d31); + } + return _vfp_d16_d31[regNum - UNW_ARM_D16]; } #if defined(__ARM_WMMX) if (regNum >= UNW_ARM_WR0 && regNum <= UNW_ARM_WR15) { - if (!_saved_iwmmx) { - _saved_iwmmx = true; - saveiWMMX(_iwmmx); - } - return _iwmmx[regNum - UNW_ARM_WR0]; - } + if (!_saved_iwmmx) { + _saved_iwmmx = true; + saveiWMMX(_iwmmx); + } + return _iwmmx[regNum - UNW_ARM_WR0]; + } #endif _LIBUNWIND_ABORT("Unknown ARM float register"); -} - -inline void Registers_arm::setFloatRegister(int regNum, unw_fpreg_t value) { - if (regNum >= UNW_ARM_D0 && regNum <= UNW_ARM_D15) { - if (!_saved_vfp_d0_d15) { - _saved_vfp_d0_d15 = true; - if (_use_X_for_vfp_save) - saveVFPWithFSTMX(_vfp_d0_d15_pad); - else - saveVFPWithFSTMD(_vfp_d0_d15_pad); - } - _vfp_d0_d15_pad[regNum - UNW_ARM_D0] = value; +} + +inline void Registers_arm::setFloatRegister(int regNum, unw_fpreg_t value) { + if (regNum >= UNW_ARM_D0 && regNum <= UNW_ARM_D15) { + if (!_saved_vfp_d0_d15) { + _saved_vfp_d0_d15 = true; + if (_use_X_for_vfp_save) + saveVFPWithFSTMX(_vfp_d0_d15_pad); + else + saveVFPWithFSTMD(_vfp_d0_d15_pad); + } + _vfp_d0_d15_pad[regNum - UNW_ARM_D0] = value; return; } if (regNum >= UNW_ARM_D16 && regNum <= UNW_ARM_D31) { - if (!_saved_vfp_d16_d31) { - _saved_vfp_d16_d31 = true; - saveVFPv3(_vfp_d16_d31); - } - _vfp_d16_d31[regNum - UNW_ARM_D16] = value; + if (!_saved_vfp_d16_d31) { + _saved_vfp_d16_d31 = true; + saveVFPv3(_vfp_d16_d31); + } + _vfp_d16_d31[regNum - UNW_ARM_D16] = value; return; } #if defined(__ARM_WMMX) if (regNum >= UNW_ARM_WR0 && regNum <= UNW_ARM_WR15) { - if (!_saved_iwmmx) { - _saved_iwmmx = true; - saveiWMMX(_iwmmx); - } - _iwmmx[regNum - UNW_ARM_WR0] = value; + if (!_saved_iwmmx) { + _saved_iwmmx = true; + saveiWMMX(_iwmmx); + } + _iwmmx[regNum - UNW_ARM_WR0] = value; return; - } + } #endif _LIBUNWIND_ABORT("Unknown ARM float register"); -} - -inline bool Registers_arm::validVectorRegister(int) const { - return false; -} - -inline v128 Registers_arm::getVectorRegister(int) const { - _LIBUNWIND_ABORT("ARM vector support not implemented"); -} - -inline void Registers_arm::setVectorRegister(int, v128) { - _LIBUNWIND_ABORT("ARM vector support not implemented"); -} +} + +inline bool Registers_arm::validVectorRegister(int) const { + return false; +} + +inline v128 Registers_arm::getVectorRegister(int) const { + _LIBUNWIND_ABORT("ARM vector support not implemented"); +} + +inline void Registers_arm::setVectorRegister(int, v128) { + _LIBUNWIND_ABORT("ARM vector support not implemented"); +} #endif // _LIBUNWIND_TARGET_ARM #if defined(_LIBUNWIND_TARGET_OR1K) -/// Registers_or1k holds the register state of a thread in an OpenRISC1000 -/// process. -class _LIBUNWIND_HIDDEN Registers_or1k { -public: - Registers_or1k(); - Registers_or1k(const void *registers); - - bool validRegister(int num) const; - uint32_t getRegister(int num) const; - void setRegister(int num, uint32_t value); - bool validFloatRegister(int num) const; - double getFloatRegister(int num) const; - void setFloatRegister(int num, double value); - bool validVectorRegister(int num) const; - v128 getVectorRegister(int num) const; - void setVectorRegister(int num, v128 value); +/// Registers_or1k holds the register state of a thread in an OpenRISC1000 +/// process. +class _LIBUNWIND_HIDDEN Registers_or1k { +public: + Registers_or1k(); + Registers_or1k(const void *registers); + + bool validRegister(int num) const; + uint32_t getRegister(int num) const; + void setRegister(int num, uint32_t value); + bool validFloatRegister(int num) const; + double getFloatRegister(int num) const; + void setFloatRegister(int num, double value); + bool validVectorRegister(int num) const; + v128 getVectorRegister(int num) const; + void setVectorRegister(int num, v128 value); static const char *getRegisterName(int num); - void jumpto(); + void jumpto(); static int lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER_OR1K; } static int getArch() { return REGISTERS_OR1K; } - - uint64_t getSP() const { return _registers.__r[1]; } - void setSP(uint32_t value) { _registers.__r[1] = value; } + + uint64_t getSP() const { return _registers.__r[1]; } + void setSP(uint32_t value) { _registers.__r[1] = value; } uint64_t getIP() const { return _registers.__pc; } void setIP(uint32_t value) { _registers.__pc = value; } - -private: - struct or1k_thread_state_t { + +private: + struct or1k_thread_state_t { unsigned int __r[32]; // r0-r31 unsigned int __pc; // Program counter unsigned int __epcr; // Program counter at exception - }; - - or1k_thread_state_t _registers; -}; - -inline Registers_or1k::Registers_or1k(const void *registers) { + }; + + or1k_thread_state_t _registers; +}; + +inline Registers_or1k::Registers_or1k(const void *registers) { static_assert((check_fit<Registers_or1k, unw_context_t>::does_fit), "or1k registers do not fit into unw_context_t"); - memcpy(&_registers, static_cast<const uint8_t *>(registers), - sizeof(_registers)); -} - -inline Registers_or1k::Registers_or1k() { - memset(&_registers, 0, sizeof(_registers)); -} - -inline bool Registers_or1k::validRegister(int regNum) const { - if (regNum == UNW_REG_IP) - return true; - if (regNum == UNW_REG_SP) - return true; - if (regNum < 0) - return false; - if (regNum <= UNW_OR1K_R31) - return true; + memcpy(&_registers, static_cast<const uint8_t *>(registers), + sizeof(_registers)); +} + +inline Registers_or1k::Registers_or1k() { + memset(&_registers, 0, sizeof(_registers)); +} + +inline bool Registers_or1k::validRegister(int regNum) const { + if (regNum == UNW_REG_IP) + return true; + if (regNum == UNW_REG_SP) + return true; + if (regNum < 0) + return false; + if (regNum <= UNW_OR1K_R31) + return true; if (regNum == UNW_OR1K_EPCR) return true; - return false; -} - -inline uint32_t Registers_or1k::getRegister(int regNum) const { - if (regNum >= UNW_OR1K_R0 && regNum <= UNW_OR1K_R31) - return _registers.__r[regNum - UNW_OR1K_R0]; - - switch (regNum) { - case UNW_REG_IP: + return false; +} + +inline uint32_t Registers_or1k::getRegister(int regNum) const { + if (regNum >= UNW_OR1K_R0 && regNum <= UNW_OR1K_R31) + return _registers.__r[regNum - UNW_OR1K_R0]; + + switch (regNum) { + case UNW_REG_IP: return _registers.__pc; - case UNW_REG_SP: - return _registers.__r[1]; + case UNW_REG_SP: + return _registers.__r[1]; case UNW_OR1K_EPCR: return _registers.__epcr; - } - _LIBUNWIND_ABORT("unsupported or1k register"); -} - -inline void Registers_or1k::setRegister(int regNum, uint32_t value) { - if (regNum >= UNW_OR1K_R0 && regNum <= UNW_OR1K_R31) { - _registers.__r[regNum - UNW_OR1K_R0] = value; - return; - } - - switch (regNum) { - case UNW_REG_IP: + } + _LIBUNWIND_ABORT("unsupported or1k register"); +} + +inline void Registers_or1k::setRegister(int regNum, uint32_t value) { + if (regNum >= UNW_OR1K_R0 && regNum <= UNW_OR1K_R31) { + _registers.__r[regNum - UNW_OR1K_R0] = value; + return; + } + + switch (regNum) { + case UNW_REG_IP: _registers.__pc = value; - return; - case UNW_REG_SP: - _registers.__r[1] = value; - return; + return; + case UNW_REG_SP: + _registers.__r[1] = value; + return; case UNW_OR1K_EPCR: _registers.__epcr = value; return; - } - _LIBUNWIND_ABORT("unsupported or1k register"); -} - -inline bool Registers_or1k::validFloatRegister(int /* regNum */) const { - return false; -} - -inline double Registers_or1k::getFloatRegister(int /* regNum */) const { - _LIBUNWIND_ABORT("or1k float support not implemented"); -} - -inline void Registers_or1k::setFloatRegister(int /* regNum */, - double /* value */) { - _LIBUNWIND_ABORT("or1k float support not implemented"); -} - -inline bool Registers_or1k::validVectorRegister(int /* regNum */) const { - return false; -} - -inline v128 Registers_or1k::getVectorRegister(int /* regNum */) const { - _LIBUNWIND_ABORT("or1k vector support not implemented"); -} - -inline void Registers_or1k::setVectorRegister(int /* regNum */, v128 /* value */) { - _LIBUNWIND_ABORT("or1k vector support not implemented"); -} - -inline const char *Registers_or1k::getRegisterName(int regNum) { - switch (regNum) { - case UNW_OR1K_R0: - return "r0"; - case UNW_OR1K_R1: - return "r1"; - case UNW_OR1K_R2: - return "r2"; - case UNW_OR1K_R3: - return "r3"; - case UNW_OR1K_R4: - return "r4"; - case UNW_OR1K_R5: - return "r5"; - case UNW_OR1K_R6: - return "r6"; - case UNW_OR1K_R7: - return "r7"; - case UNW_OR1K_R8: - return "r8"; - case UNW_OR1K_R9: - return "r9"; - case UNW_OR1K_R10: - return "r10"; - case UNW_OR1K_R11: - return "r11"; - case UNW_OR1K_R12: - return "r12"; - case UNW_OR1K_R13: - return "r13"; - case UNW_OR1K_R14: - return "r14"; - case UNW_OR1K_R15: - return "r15"; - case UNW_OR1K_R16: - return "r16"; - case UNW_OR1K_R17: - return "r17"; - case UNW_OR1K_R18: - return "r18"; - case UNW_OR1K_R19: - return "r19"; - case UNW_OR1K_R20: - return "r20"; - case UNW_OR1K_R21: - return "r21"; - case UNW_OR1K_R22: - return "r22"; - case UNW_OR1K_R23: - return "r23"; - case UNW_OR1K_R24: - return "r24"; - case UNW_OR1K_R25: - return "r25"; - case UNW_OR1K_R26: - return "r26"; - case UNW_OR1K_R27: - return "r27"; - case UNW_OR1K_R28: - return "r28"; - case UNW_OR1K_R29: - return "r29"; - case UNW_OR1K_R30: - return "r30"; - case UNW_OR1K_R31: - return "r31"; + } + _LIBUNWIND_ABORT("unsupported or1k register"); +} + +inline bool Registers_or1k::validFloatRegister(int /* regNum */) const { + return false; +} + +inline double Registers_or1k::getFloatRegister(int /* regNum */) const { + _LIBUNWIND_ABORT("or1k float support not implemented"); +} + +inline void Registers_or1k::setFloatRegister(int /* regNum */, + double /* value */) { + _LIBUNWIND_ABORT("or1k float support not implemented"); +} + +inline bool Registers_or1k::validVectorRegister(int /* regNum */) const { + return false; +} + +inline v128 Registers_or1k::getVectorRegister(int /* regNum */) const { + _LIBUNWIND_ABORT("or1k vector support not implemented"); +} + +inline void Registers_or1k::setVectorRegister(int /* regNum */, v128 /* value */) { + _LIBUNWIND_ABORT("or1k vector support not implemented"); +} + +inline const char *Registers_or1k::getRegisterName(int regNum) { + switch (regNum) { + case UNW_OR1K_R0: + return "r0"; + case UNW_OR1K_R1: + return "r1"; + case UNW_OR1K_R2: + return "r2"; + case UNW_OR1K_R3: + return "r3"; + case UNW_OR1K_R4: + return "r4"; + case UNW_OR1K_R5: + return "r5"; + case UNW_OR1K_R6: + return "r6"; + case UNW_OR1K_R7: + return "r7"; + case UNW_OR1K_R8: + return "r8"; + case UNW_OR1K_R9: + return "r9"; + case UNW_OR1K_R10: + return "r10"; + case UNW_OR1K_R11: + return "r11"; + case UNW_OR1K_R12: + return "r12"; + case UNW_OR1K_R13: + return "r13"; + case UNW_OR1K_R14: + return "r14"; + case UNW_OR1K_R15: + return "r15"; + case UNW_OR1K_R16: + return "r16"; + case UNW_OR1K_R17: + return "r17"; + case UNW_OR1K_R18: + return "r18"; + case UNW_OR1K_R19: + return "r19"; + case UNW_OR1K_R20: + return "r20"; + case UNW_OR1K_R21: + return "r21"; + case UNW_OR1K_R22: + return "r22"; + case UNW_OR1K_R23: + return "r23"; + case UNW_OR1K_R24: + return "r24"; + case UNW_OR1K_R25: + return "r25"; + case UNW_OR1K_R26: + return "r26"; + case UNW_OR1K_R27: + return "r27"; + case UNW_OR1K_R28: + return "r28"; + case UNW_OR1K_R29: + return "r29"; + case UNW_OR1K_R30: + return "r30"; + case UNW_OR1K_R31: + return "r31"; case UNW_OR1K_EPCR: return "EPCR"; - default: - return "unknown register"; - } - -} + default: + return "unknown register"; + } + +} #endif // _LIBUNWIND_TARGET_OR1K #if defined(_LIBUNWIND_TARGET_MIPS_O32) @@ -4712,6 +4712,6 @@ inline const char *Registers_ve::getRegisterName(int regNum) { } #endif // _LIBUNWIND_TARGET_VE -} // namespace libunwind - -#endif // __REGISTERS_HPP__ +} // namespace libunwind + +#endif // __REGISTERS_HPP__ diff --git a/contrib/libs/libunwind/src/Unwind-EHABI.cpp b/contrib/libs/libunwind/src/Unwind-EHABI.cpp index 46b26f588f..21c8b2777b 100644 --- a/contrib/libs/libunwind/src/Unwind-EHABI.cpp +++ b/contrib/libs/libunwind/src/Unwind-EHABI.cpp @@ -1,432 +1,432 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Implements ARM zero-cost C++ exceptions -// -//===----------------------------------------------------------------------===// - -#include "Unwind-EHABI.h" - +// +// +// Implements ARM zero-cost C++ exceptions +// +//===----------------------------------------------------------------------===// + +#include "Unwind-EHABI.h" + #if defined(_LIBUNWIND_ARM_EHABI) - + #include <inttypes.h> -#include <stdbool.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "config.h" -#include "libunwind.h" -#include "libunwind_ext.h" -#include "unwind.h" - -namespace { - -// Strange order: take words in order, but inside word, take from most to least -// signinficant byte. -uint8_t getByte(const uint32_t* data, size_t offset) { - const uint8_t* byteData = reinterpret_cast<const uint8_t*>(data); +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "config.h" +#include "libunwind.h" +#include "libunwind_ext.h" +#include "unwind.h" + +namespace { + +// Strange order: take words in order, but inside word, take from most to least +// signinficant byte. +uint8_t getByte(const uint32_t* data, size_t offset) { + const uint8_t* byteData = reinterpret_cast<const uint8_t*>(data); #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ - return byteData[(offset & ~(size_t)0x03) + (3 - (offset & (size_t)0x03))]; + return byteData[(offset & ~(size_t)0x03) + (3 - (offset & (size_t)0x03))]; #elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ return byteData[offset]; #else #error "Unable to determine endianess" #endif -} - -const char* getNextWord(const char* data, uint32_t* out) { - *out = *reinterpret_cast<const uint32_t*>(data); - return data + 4; -} - -const char* getNextNibble(const char* data, uint32_t* out) { - *out = *reinterpret_cast<const uint16_t*>(data); - return data + 2; -} - -struct Descriptor { - // See # 9.2 - typedef enum { - SU16 = 0, // Short descriptor, 16-bit entries - LU16 = 1, // Long descriptor, 16-bit entries - LU32 = 3, // Long descriptor, 32-bit entries - RESERVED0 = 4, RESERVED1 = 5, RESERVED2 = 6, RESERVED3 = 7, - RESERVED4 = 8, RESERVED5 = 9, RESERVED6 = 10, RESERVED7 = 11, - RESERVED8 = 12, RESERVED9 = 13, RESERVED10 = 14, RESERVED11 = 15 - } Format; - - // See # 9.2 - typedef enum { - CLEANUP = 0x0, - FUNC = 0x1, - CATCH = 0x2, - INVALID = 0x4 - } Kind; -}; - -_Unwind_Reason_Code ProcessDescriptors( - _Unwind_State state, - _Unwind_Control_Block* ucbp, - struct _Unwind_Context* context, - Descriptor::Format format, - const char* descriptorStart, - uint32_t flags) { - - // EHT is inlined in the index using compact form. No descriptors. #5 - if (flags & 0x1) - return _URC_CONTINUE_UNWIND; - - // TODO: We should check the state here, and determine whether we need to - // perform phase1 or phase2 unwinding. - (void)state; - - const char* descriptor = descriptorStart; - uint32_t descriptorWord; - getNextWord(descriptor, &descriptorWord); - while (descriptorWord) { - // Read descriptor based on # 9.2. - uint32_t length; - uint32_t offset; - switch (format) { - case Descriptor::LU32: - descriptor = getNextWord(descriptor, &length); - descriptor = getNextWord(descriptor, &offset); +} + +const char* getNextWord(const char* data, uint32_t* out) { + *out = *reinterpret_cast<const uint32_t*>(data); + return data + 4; +} + +const char* getNextNibble(const char* data, uint32_t* out) { + *out = *reinterpret_cast<const uint16_t*>(data); + return data + 2; +} + +struct Descriptor { + // See # 9.2 + typedef enum { + SU16 = 0, // Short descriptor, 16-bit entries + LU16 = 1, // Long descriptor, 16-bit entries + LU32 = 3, // Long descriptor, 32-bit entries + RESERVED0 = 4, RESERVED1 = 5, RESERVED2 = 6, RESERVED3 = 7, + RESERVED4 = 8, RESERVED5 = 9, RESERVED6 = 10, RESERVED7 = 11, + RESERVED8 = 12, RESERVED9 = 13, RESERVED10 = 14, RESERVED11 = 15 + } Format; + + // See # 9.2 + typedef enum { + CLEANUP = 0x0, + FUNC = 0x1, + CATCH = 0x2, + INVALID = 0x4 + } Kind; +}; + +_Unwind_Reason_Code ProcessDescriptors( + _Unwind_State state, + _Unwind_Control_Block* ucbp, + struct _Unwind_Context* context, + Descriptor::Format format, + const char* descriptorStart, + uint32_t flags) { + + // EHT is inlined in the index using compact form. No descriptors. #5 + if (flags & 0x1) + return _URC_CONTINUE_UNWIND; + + // TODO: We should check the state here, and determine whether we need to + // perform phase1 or phase2 unwinding. + (void)state; + + const char* descriptor = descriptorStart; + uint32_t descriptorWord; + getNextWord(descriptor, &descriptorWord); + while (descriptorWord) { + // Read descriptor based on # 9.2. + uint32_t length; + uint32_t offset; + switch (format) { + case Descriptor::LU32: + descriptor = getNextWord(descriptor, &length); + descriptor = getNextWord(descriptor, &offset); break; - case Descriptor::LU16: - descriptor = getNextNibble(descriptor, &length); - descriptor = getNextNibble(descriptor, &offset); + case Descriptor::LU16: + descriptor = getNextNibble(descriptor, &length); + descriptor = getNextNibble(descriptor, &offset); + break; + default: + assert(false); + return _URC_FAILURE; + } + + // See # 9.2 table for decoding the kind of descriptor. It's a 2-bit value. + Descriptor::Kind kind = + static_cast<Descriptor::Kind>((length & 0x1) | ((offset & 0x1) << 1)); + + // Clear off flag from last bit. + length &= ~1u; + offset &= ~1u; + uintptr_t scopeStart = ucbp->pr_cache.fnstart + offset; + uintptr_t scopeEnd = scopeStart + length; + uintptr_t pc = _Unwind_GetIP(context); + bool isInScope = (scopeStart <= pc) && (pc < scopeEnd); + + switch (kind) { + case Descriptor::CLEANUP: { + // TODO(ajwong): Handle cleanup descriptors. + break; + } + case Descriptor::FUNC: { + // TODO(ajwong): Handle function descriptors. + break; + } + case Descriptor::CATCH: { + // Catch descriptors require gobbling one more word. + uint32_t landing_pad; + descriptor = getNextWord(descriptor, &landing_pad); + + if (isInScope) { + // TODO(ajwong): This is only phase1 compatible logic. Implement + // phase2. + landing_pad = signExtendPrel31(landing_pad & ~0x80000000); + if (landing_pad == 0xffffffff) { + return _URC_HANDLER_FOUND; + } else if (landing_pad == 0xfffffffe) { + return _URC_FAILURE; + } else { + /* + bool is_reference_type = landing_pad & 0x80000000; + void* matched_object; + if (__cxxabiv1::__cxa_type_match( + ucbp, reinterpret_cast<const std::type_info *>(landing_pad), + is_reference_type, + &matched_object) != __cxxabiv1::ctm_failed) + return _URC_HANDLER_FOUND; + */ + _LIBUNWIND_ABORT("Type matching not implemented"); + } + } break; - default: - assert(false); - return _URC_FAILURE; - } - - // See # 9.2 table for decoding the kind of descriptor. It's a 2-bit value. - Descriptor::Kind kind = - static_cast<Descriptor::Kind>((length & 0x1) | ((offset & 0x1) << 1)); - - // Clear off flag from last bit. - length &= ~1u; - offset &= ~1u; - uintptr_t scopeStart = ucbp->pr_cache.fnstart + offset; - uintptr_t scopeEnd = scopeStart + length; - uintptr_t pc = _Unwind_GetIP(context); - bool isInScope = (scopeStart <= pc) && (pc < scopeEnd); - - switch (kind) { - case Descriptor::CLEANUP: { - // TODO(ajwong): Handle cleanup descriptors. - break; - } - case Descriptor::FUNC: { - // TODO(ajwong): Handle function descriptors. - break; - } - case Descriptor::CATCH: { - // Catch descriptors require gobbling one more word. - uint32_t landing_pad; - descriptor = getNextWord(descriptor, &landing_pad); - - if (isInScope) { - // TODO(ajwong): This is only phase1 compatible logic. Implement - // phase2. - landing_pad = signExtendPrel31(landing_pad & ~0x80000000); - if (landing_pad == 0xffffffff) { - return _URC_HANDLER_FOUND; - } else if (landing_pad == 0xfffffffe) { - return _URC_FAILURE; - } else { - /* - bool is_reference_type = landing_pad & 0x80000000; - void* matched_object; - if (__cxxabiv1::__cxa_type_match( - ucbp, reinterpret_cast<const std::type_info *>(landing_pad), - is_reference_type, - &matched_object) != __cxxabiv1::ctm_failed) - return _URC_HANDLER_FOUND; - */ - _LIBUNWIND_ABORT("Type matching not implemented"); - } - } - break; - } - default: - _LIBUNWIND_ABORT("Invalid descriptor kind found."); - } - - getNextWord(descriptor, &descriptorWord); - } - - return _URC_CONTINUE_UNWIND; -} - -static _Unwind_Reason_Code unwindOneFrame(_Unwind_State state, - _Unwind_Control_Block* ucbp, - struct _Unwind_Context* context) { - // Read the compact model EHT entry's header # 6.3 - const uint32_t* unwindingData = ucbp->pr_cache.ehtp; - assert((*unwindingData & 0xf0000000) == 0x80000000 && "Must be a compact entry"); - Descriptor::Format format = - static_cast<Descriptor::Format>((*unwindingData & 0x0f000000) >> 24); - - const char *lsda = - reinterpret_cast<const char *>(_Unwind_GetLanguageSpecificData(context)); - - // Handle descriptors before unwinding so they are processed in the context - // of the correct stack frame. - _Unwind_Reason_Code result = - ProcessDescriptors(state, ucbp, context, format, lsda, - ucbp->pr_cache.additional); - - if (result != _URC_CONTINUE_UNWIND) - return result; - + } + default: + _LIBUNWIND_ABORT("Invalid descriptor kind found."); + } + + getNextWord(descriptor, &descriptorWord); + } + + return _URC_CONTINUE_UNWIND; +} + +static _Unwind_Reason_Code unwindOneFrame(_Unwind_State state, + _Unwind_Control_Block* ucbp, + struct _Unwind_Context* context) { + // Read the compact model EHT entry's header # 6.3 + const uint32_t* unwindingData = ucbp->pr_cache.ehtp; + assert((*unwindingData & 0xf0000000) == 0x80000000 && "Must be a compact entry"); + Descriptor::Format format = + static_cast<Descriptor::Format>((*unwindingData & 0x0f000000) >> 24); + + const char *lsda = + reinterpret_cast<const char *>(_Unwind_GetLanguageSpecificData(context)); + + // Handle descriptors before unwinding so they are processed in the context + // of the correct stack frame. + _Unwind_Reason_Code result = + ProcessDescriptors(state, ucbp, context, format, lsda, + ucbp->pr_cache.additional); + + if (result != _URC_CONTINUE_UNWIND) + return result; + switch (__unw_step(reinterpret_cast<unw_cursor_t *>(context))) { case UNW_STEP_SUCCESS: return _URC_CONTINUE_UNWIND; case UNW_STEP_END: return _URC_END_OF_STACK; default: - return _URC_FAILURE; + return _URC_FAILURE; + } +} + +// Generates mask discriminator for _Unwind_VRS_Pop, e.g. for _UVRSC_CORE / +// _UVRSD_UINT32. +uint32_t RegisterMask(uint8_t start, uint8_t count_minus_one) { + return ((1U << (count_minus_one + 1)) - 1) << start; +} + +// Generates mask discriminator for _Unwind_VRS_Pop, e.g. for _UVRSC_VFP / +// _UVRSD_DOUBLE. +uint32_t RegisterRange(uint8_t start, uint8_t count_minus_one) { + return ((uint32_t)start << 16) | ((uint32_t)count_minus_one + 1); +} + +} // end anonymous namespace + +/** + * Decodes an EHT entry. + * + * @param data Pointer to EHT. + * @param[out] off Offset from return value (in bytes) to begin interpretation. + * @param[out] len Number of bytes in unwind code. + * @return Pointer to beginning of unwind code. + */ +extern "C" const uint32_t* +decode_eht_entry(const uint32_t* data, size_t* off, size_t* len) { + if ((*data & 0x80000000) == 0) { + // 6.2: Generic Model + // + // EHT entry is a prel31 pointing to the PR, followed by data understood + // only by the personality routine. Fortunately, all existing assembler + // implementations, including GNU assembler, LLVM integrated assembler, + // and ARM assembler, assume that the unwind opcodes come after the + // personality rountine address. + *off = 1; // First byte is size data. + *len = (((data[1] >> 24) & 0xff) + 1) * 4; + data++; // Skip the first word, which is the prel31 offset. + } else { + // 6.3: ARM Compact Model + // + // EHT entries here correspond to the __aeabi_unwind_cpp_pr[012] PRs indeded + // by format: + Descriptor::Format format = + static_cast<Descriptor::Format>((*data & 0x0f000000) >> 24); + switch (format) { + case Descriptor::SU16: + *len = 4; + *off = 1; + break; + case Descriptor::LU16: + case Descriptor::LU32: + *len = 4 + 4 * ((*data & 0x00ff0000) >> 16); + *off = 2; + break; + default: + return nullptr; + } } -} - -// Generates mask discriminator for _Unwind_VRS_Pop, e.g. for _UVRSC_CORE / -// _UVRSD_UINT32. -uint32_t RegisterMask(uint8_t start, uint8_t count_minus_one) { - return ((1U << (count_minus_one + 1)) - 1) << start; -} - -// Generates mask discriminator for _Unwind_VRS_Pop, e.g. for _UVRSC_VFP / -// _UVRSD_DOUBLE. -uint32_t RegisterRange(uint8_t start, uint8_t count_minus_one) { - return ((uint32_t)start << 16) | ((uint32_t)count_minus_one + 1); -} - -} // end anonymous namespace - -/** - * Decodes an EHT entry. - * - * @param data Pointer to EHT. - * @param[out] off Offset from return value (in bytes) to begin interpretation. - * @param[out] len Number of bytes in unwind code. - * @return Pointer to beginning of unwind code. - */ -extern "C" const uint32_t* -decode_eht_entry(const uint32_t* data, size_t* off, size_t* len) { - if ((*data & 0x80000000) == 0) { - // 6.2: Generic Model - // - // EHT entry is a prel31 pointing to the PR, followed by data understood - // only by the personality routine. Fortunately, all existing assembler - // implementations, including GNU assembler, LLVM integrated assembler, - // and ARM assembler, assume that the unwind opcodes come after the - // personality rountine address. - *off = 1; // First byte is size data. - *len = (((data[1] >> 24) & 0xff) + 1) * 4; - data++; // Skip the first word, which is the prel31 offset. - } else { - // 6.3: ARM Compact Model - // - // EHT entries here correspond to the __aeabi_unwind_cpp_pr[012] PRs indeded - // by format: - Descriptor::Format format = - static_cast<Descriptor::Format>((*data & 0x0f000000) >> 24); - switch (format) { - case Descriptor::SU16: - *len = 4; - *off = 1; - break; - case Descriptor::LU16: - case Descriptor::LU32: - *len = 4 + 4 * ((*data & 0x00ff0000) >> 16); - *off = 2; - break; - default: - return nullptr; - } - } - return data; -} - + return data; +} + _LIBUNWIND_EXPORT _Unwind_Reason_Code _Unwind_VRS_Interpret(_Unwind_Context *context, const uint32_t *data, size_t offset, size_t len) { - bool wrotePC = false; - bool finish = false; + bool wrotePC = false; + bool finish = false; bool hasReturnAddrAuthCode = false; - while (offset < len && !finish) { - uint8_t byte = getByte(data, offset++); - if ((byte & 0x80) == 0) { - uint32_t sp; - _Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, &sp); - if (byte & 0x40) - sp -= (((uint32_t)byte & 0x3f) << 2) + 4; - else - sp += ((uint32_t)byte << 2) + 4; - _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, &sp); - } else { - switch (byte & 0xf0) { - case 0x80: { - if (offset >= len) - return _URC_FAILURE; - uint32_t registers = - (((uint32_t)byte & 0x0f) << 12) | - (((uint32_t)getByte(data, offset++)) << 4); - if (!registers) - return _URC_FAILURE; - if (registers & (1 << 15)) - wrotePC = true; - _Unwind_VRS_Pop(context, _UVRSC_CORE, registers, _UVRSD_UINT32); - break; - } - case 0x90: { - uint8_t reg = byte & 0x0f; - if (reg == 13 || reg == 15) - return _URC_FAILURE; - uint32_t sp; - _Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_R0 + reg, - _UVRSD_UINT32, &sp); - _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, - &sp); - break; - } - case 0xa0: { - uint32_t registers = RegisterMask(4, byte & 0x07); - if (byte & 0x08) - registers |= 1 << 14; - _Unwind_VRS_Pop(context, _UVRSC_CORE, registers, _UVRSD_UINT32); - break; - } - case 0xb0: { - switch (byte) { - case 0xb0: - finish = true; - break; - case 0xb1: { - if (offset >= len) - return _URC_FAILURE; - uint8_t registers = getByte(data, offset++); - if (registers & 0xf0 || !registers) - return _URC_FAILURE; - _Unwind_VRS_Pop(context, _UVRSC_CORE, registers, _UVRSD_UINT32); - break; - } - case 0xb2: { - uint32_t addend = 0; - uint32_t shift = 0; - // This decodes a uleb128 value. - while (true) { - if (offset >= len) - return _URC_FAILURE; - uint32_t v = getByte(data, offset++); - addend |= (v & 0x7f) << shift; - if ((v & 0x80) == 0) - break; - shift += 7; - } - uint32_t sp; - _Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, - &sp); - sp += 0x204 + (addend << 2); - _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, - &sp); - break; - } - case 0xb3: { - uint8_t v = getByte(data, offset++); - _Unwind_VRS_Pop(context, _UVRSC_VFP, - RegisterRange(static_cast<uint8_t>(v >> 4), - v & 0x0f), _UVRSD_VFPX); - break; - } - case 0xb4: + while (offset < len && !finish) { + uint8_t byte = getByte(data, offset++); + if ((byte & 0x80) == 0) { + uint32_t sp; + _Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, &sp); + if (byte & 0x40) + sp -= (((uint32_t)byte & 0x3f) << 2) + 4; + else + sp += ((uint32_t)byte << 2) + 4; + _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, &sp); + } else { + switch (byte & 0xf0) { + case 0x80: { + if (offset >= len) + return _URC_FAILURE; + uint32_t registers = + (((uint32_t)byte & 0x0f) << 12) | + (((uint32_t)getByte(data, offset++)) << 4); + if (!registers) + return _URC_FAILURE; + if (registers & (1 << 15)) + wrotePC = true; + _Unwind_VRS_Pop(context, _UVRSC_CORE, registers, _UVRSD_UINT32); + break; + } + case 0x90: { + uint8_t reg = byte & 0x0f; + if (reg == 13 || reg == 15) + return _URC_FAILURE; + uint32_t sp; + _Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_R0 + reg, + _UVRSD_UINT32, &sp); + _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, + &sp); + break; + } + case 0xa0: { + uint32_t registers = RegisterMask(4, byte & 0x07); + if (byte & 0x08) + registers |= 1 << 14; + _Unwind_VRS_Pop(context, _UVRSC_CORE, registers, _UVRSD_UINT32); + break; + } + case 0xb0: { + switch (byte) { + case 0xb0: + finish = true; + break; + case 0xb1: { + if (offset >= len) + return _URC_FAILURE; + uint8_t registers = getByte(data, offset++); + if (registers & 0xf0 || !registers) + return _URC_FAILURE; + _Unwind_VRS_Pop(context, _UVRSC_CORE, registers, _UVRSD_UINT32); + break; + } + case 0xb2: { + uint32_t addend = 0; + uint32_t shift = 0; + // This decodes a uleb128 value. + while (true) { + if (offset >= len) + return _URC_FAILURE; + uint32_t v = getByte(data, offset++); + addend |= (v & 0x7f) << shift; + if ((v & 0x80) == 0) + break; + shift += 7; + } + uint32_t sp; + _Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, + &sp); + sp += 0x204 + (addend << 2); + _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, + &sp); + break; + } + case 0xb3: { + uint8_t v = getByte(data, offset++); + _Unwind_VRS_Pop(context, _UVRSC_VFP, + RegisterRange(static_cast<uint8_t>(v >> 4), + v & 0x0f), _UVRSD_VFPX); + break; + } + case 0xb4: hasReturnAddrAuthCode = true; _Unwind_VRS_Pop(context, _UVRSC_PSEUDO, 0 /* Return Address Auth Code */, _UVRSD_UINT32); break; - case 0xb5: - case 0xb6: - case 0xb7: - return _URC_FAILURE; - default: - _Unwind_VRS_Pop(context, _UVRSC_VFP, - RegisterRange(8, byte & 0x07), _UVRSD_VFPX); - break; - } - break; - } - case 0xc0: { - switch (byte) { + case 0xb5: + case 0xb6: + case 0xb7: + return _URC_FAILURE; + default: + _Unwind_VRS_Pop(context, _UVRSC_VFP, + RegisterRange(8, byte & 0x07), _UVRSD_VFPX); + break; + } + break; + } + case 0xc0: { + switch (byte) { #if defined(__ARM_WMMX) - case 0xc0: - case 0xc1: - case 0xc2: - case 0xc3: - case 0xc4: - case 0xc5: - _Unwind_VRS_Pop(context, _UVRSC_WMMXD, - RegisterRange(10, byte & 0x7), _UVRSD_DOUBLE); - break; - case 0xc6: { - uint8_t v = getByte(data, offset++); - uint8_t start = static_cast<uint8_t>(v >> 4); - uint8_t count_minus_one = v & 0xf; - if (start + count_minus_one >= 16) - return _URC_FAILURE; - _Unwind_VRS_Pop(context, _UVRSC_WMMXD, - RegisterRange(start, count_minus_one), - _UVRSD_DOUBLE); - break; - } - case 0xc7: { - uint8_t v = getByte(data, offset++); - if (!v || v & 0xf0) - return _URC_FAILURE; - _Unwind_VRS_Pop(context, _UVRSC_WMMXC, v, _UVRSD_DOUBLE); - break; - } + case 0xc0: + case 0xc1: + case 0xc2: + case 0xc3: + case 0xc4: + case 0xc5: + _Unwind_VRS_Pop(context, _UVRSC_WMMXD, + RegisterRange(10, byte & 0x7), _UVRSD_DOUBLE); + break; + case 0xc6: { + uint8_t v = getByte(data, offset++); + uint8_t start = static_cast<uint8_t>(v >> 4); + uint8_t count_minus_one = v & 0xf; + if (start + count_minus_one >= 16) + return _URC_FAILURE; + _Unwind_VRS_Pop(context, _UVRSC_WMMXD, + RegisterRange(start, count_minus_one), + _UVRSD_DOUBLE); + break; + } + case 0xc7: { + uint8_t v = getByte(data, offset++); + if (!v || v & 0xf0) + return _URC_FAILURE; + _Unwind_VRS_Pop(context, _UVRSC_WMMXC, v, _UVRSD_DOUBLE); + break; + } #endif - case 0xc8: - case 0xc9: { - uint8_t v = getByte(data, offset++); - uint8_t start = - static_cast<uint8_t>(((byte == 0xc8) ? 16 : 0) + (v >> 4)); - uint8_t count_minus_one = v & 0xf; - if (start + count_minus_one >= 32) - return _URC_FAILURE; - _Unwind_VRS_Pop(context, _UVRSC_VFP, - RegisterRange(start, count_minus_one), - _UVRSD_DOUBLE); - break; - } - default: - return _URC_FAILURE; - } - break; - } - case 0xd0: { - if (byte & 0x08) - return _URC_FAILURE; - _Unwind_VRS_Pop(context, _UVRSC_VFP, RegisterRange(8, byte & 0x7), - _UVRSD_DOUBLE); - break; - } - default: - return _URC_FAILURE; - } - } - } - if (!wrotePC) { - uint32_t lr; - _Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_LR, _UVRSD_UINT32, &lr); + case 0xc8: + case 0xc9: { + uint8_t v = getByte(data, offset++); + uint8_t start = + static_cast<uint8_t>(((byte == 0xc8) ? 16 : 0) + (v >> 4)); + uint8_t count_minus_one = v & 0xf; + if (start + count_minus_one >= 32) + return _URC_FAILURE; + _Unwind_VRS_Pop(context, _UVRSC_VFP, + RegisterRange(start, count_minus_one), + _UVRSD_DOUBLE); + break; + } + default: + return _URC_FAILURE; + } + break; + } + case 0xd0: { + if (byte & 0x08) + return _URC_FAILURE; + _Unwind_VRS_Pop(context, _UVRSC_VFP, RegisterRange(8, byte & 0x7), + _UVRSD_DOUBLE); + break; + } + default: + return _URC_FAILURE; + } + } + } + if (!wrotePC) { + uint32_t lr; + _Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_LR, _UVRSD_UINT32, &lr); #ifdef __ARM_FEATURE_PAUTH if (hasReturnAddrAuthCode) { uint32_t sp; @@ -437,263 +437,263 @@ _Unwind_VRS_Interpret(_Unwind_Context *context, const uint32_t *data, __asm__ __volatile__("autg %0, %1, %2" : : "r"(pac), "r"(lr), "r"(sp) :); } #endif - _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_IP, _UVRSD_UINT32, &lr); - } - return _URC_CONTINUE_UNWIND; -} - + _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_IP, _UVRSD_UINT32, &lr); + } + return _URC_CONTINUE_UNWIND; +} + extern "C" _LIBUNWIND_EXPORT _Unwind_Reason_Code __aeabi_unwind_cpp_pr0(_Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context) { - return unwindOneFrame(state, ucbp, context); -} - + return unwindOneFrame(state, ucbp, context); +} + extern "C" _LIBUNWIND_EXPORT _Unwind_Reason_Code __aeabi_unwind_cpp_pr1(_Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context) { - return unwindOneFrame(state, ucbp, context); -} - + return unwindOneFrame(state, ucbp, context); +} + extern "C" _LIBUNWIND_EXPORT _Unwind_Reason_Code __aeabi_unwind_cpp_pr2(_Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context) { - return unwindOneFrame(state, ucbp, context); -} - -static _Unwind_Reason_Code + return unwindOneFrame(state, ucbp, context); +} + +static _Unwind_Reason_Code unwind_phase1(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object) { - // EHABI #7.3 discusses preserving the VRS in a "temporary VRS" during - // phase 1 and then restoring it to the "primary VRS" for phase 2. The - // effect is phase 2 doesn't see any of the VRS manipulations from phase 1. - // In this implementation, the phases don't share the VRS backing store. - // Instead, they are passed the original |uc| and they create a new VRS - // from scratch thus achieving the same effect. + // EHABI #7.3 discusses preserving the VRS in a "temporary VRS" during + // phase 1 and then restoring it to the "primary VRS" for phase 2. The + // effect is phase 2 doesn't see any of the VRS manipulations from phase 1. + // In this implementation, the phases don't share the VRS backing store. + // Instead, they are passed the original |uc| and they create a new VRS + // from scratch thus achieving the same effect. __unw_init_local(cursor, uc); - - // Walk each frame looking for a place to stop. - for (bool handlerNotFound = true; handlerNotFound;) { - - // See if frame has code to run (has personality routine). - unw_proc_info_t frameInfo; + + // Walk each frame looking for a place to stop. + for (bool handlerNotFound = true; handlerNotFound;) { + + // See if frame has code to run (has personality routine). + unw_proc_info_t frameInfo; if (__unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): __unw_get_proc_info " "failed => _URC_FATAL_PHASE1_ERROR", static_cast<void *>(exception_object)); - return _URC_FATAL_PHASE1_ERROR; - } - + return _URC_FATAL_PHASE1_ERROR; + } + #ifndef NDEBUG - // When tracing, print state information. - if (_LIBUNWIND_TRACING_UNWINDING) { - char functionBuf[512]; - const char *functionName = functionBuf; - unw_word_t offset; + // When tracing, print state information. + if (_LIBUNWIND_TRACING_UNWINDING) { + char functionBuf[512]; + const char *functionName = functionBuf; + unw_word_t offset; if ((__unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf), &offset) != UNW_ESUCCESS) || - (frameInfo.start_ip + offset > frameInfo.end_ip)) - functionName = ".anonymous."; - unw_word_t pc; + (frameInfo.start_ip + offset > frameInfo.end_ip)) + functionName = ".anonymous."; + unw_word_t pc; __unw_get_reg(cursor, UNW_REG_IP, &pc); - _LIBUNWIND_TRACE_UNWINDING( + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): pc=0x%" PRIxPTR ", start_ip=0x%" PRIxPTR ", func=%s, " "lsda=0x%" PRIxPTR ", personality=0x%" PRIxPTR, static_cast<void *>(exception_object), pc, frameInfo.start_ip, functionName, frameInfo.lsda, frameInfo.handler); - } + } #endif - - // If there is a personality routine, ask it if it will want to stop at - // this frame. - if (frameInfo.handler != 0) { + + // If there is a personality routine, ask it if it will want to stop at + // this frame. + if (frameInfo.handler != 0) { _Unwind_Personality_Fn p = (_Unwind_Personality_Fn)(long)(frameInfo.handler); - _LIBUNWIND_TRACE_UNWINDING( + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): calling personality function %p", - static_cast<void *>(exception_object), - reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(p))); + static_cast<void *>(exception_object), + reinterpret_cast<void *>(reinterpret_cast<uintptr_t>(p))); struct _Unwind_Context *context = (struct _Unwind_Context *)(cursor); - exception_object->pr_cache.fnstart = frameInfo.start_ip; - exception_object->pr_cache.ehtp = - (_Unwind_EHT_Header *)frameInfo.unwind_info; - exception_object->pr_cache.additional = frameInfo.flags; - _Unwind_Reason_Code personalityResult = - (*p)(_US_VIRTUAL_UNWIND_FRAME, exception_object, context); - _LIBUNWIND_TRACE_UNWINDING( - "unwind_phase1(ex_ojb=%p): personality result %d start_ip %x ehtp %p " + exception_object->pr_cache.fnstart = frameInfo.start_ip; + exception_object->pr_cache.ehtp = + (_Unwind_EHT_Header *)frameInfo.unwind_info; + exception_object->pr_cache.additional = frameInfo.flags; + _Unwind_Reason_Code personalityResult = + (*p)(_US_VIRTUAL_UNWIND_FRAME, exception_object, context); + _LIBUNWIND_TRACE_UNWINDING( + "unwind_phase1(ex_ojb=%p): personality result %d start_ip %x ehtp %p " "additional %x", - static_cast<void *>(exception_object), personalityResult, - exception_object->pr_cache.fnstart, - static_cast<void *>(exception_object->pr_cache.ehtp), - exception_object->pr_cache.additional); - switch (personalityResult) { - case _URC_HANDLER_FOUND: - // found a catch clause or locals that need destructing in this frame - // stop search and remember stack pointer at the frame - handlerNotFound = false; - // p should have initialized barrier_cache. EHABI #7.3.5 - _LIBUNWIND_TRACE_UNWINDING( + static_cast<void *>(exception_object), personalityResult, + exception_object->pr_cache.fnstart, + static_cast<void *>(exception_object->pr_cache.ehtp), + exception_object->pr_cache.additional); + switch (personalityResult) { + case _URC_HANDLER_FOUND: + // found a catch clause or locals that need destructing in this frame + // stop search and remember stack pointer at the frame + handlerNotFound = false; + // p should have initialized barrier_cache. EHABI #7.3.5 + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): _URC_HANDLER_FOUND", - static_cast<void *>(exception_object)); - return _URC_NO_REASON; - - case _URC_CONTINUE_UNWIND: - _LIBUNWIND_TRACE_UNWINDING( + static_cast<void *>(exception_object)); + return _URC_NO_REASON; + + case _URC_CONTINUE_UNWIND: + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): _URC_CONTINUE_UNWIND", - static_cast<void *>(exception_object)); - // continue unwinding - break; - - // EHABI #7.3.3 - case _URC_FAILURE: - return _URC_FAILURE; - - default: - // something went wrong - _LIBUNWIND_TRACE_UNWINDING( + static_cast<void *>(exception_object)); + // continue unwinding + break; + + // EHABI #7.3.3 + case _URC_FAILURE: + return _URC_FAILURE; + + default: + // something went wrong + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR", - static_cast<void *>(exception_object)); - return _URC_FATAL_PHASE1_ERROR; - } - } - } - return _URC_NO_REASON; -} - + static_cast<void *>(exception_object)); + return _URC_FATAL_PHASE1_ERROR; + } + } + } + return _URC_NO_REASON; +} + static _Unwind_Reason_Code unwind_phase2(unw_context_t *uc, unw_cursor_t *cursor, - _Unwind_Exception *exception_object, - bool resume) { - // See comment at the start of unwind_phase1 regarding VRS integrity. + _Unwind_Exception *exception_object, + bool resume) { + // See comment at the start of unwind_phase1 regarding VRS integrity. __unw_init_local(cursor, uc); - + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)", - static_cast<void *>(exception_object)); - int frame_count = 0; - - // Walk each frame until we reach where search phase said to stop. - while (true) { + static_cast<void *>(exception_object)); + int frame_count = 0; + + // Walk each frame until we reach where search phase said to stop. + while (true) { // Ask libunwind to get next frame (skip over first which is - // _Unwind_RaiseException or _Unwind_Resume). - // - // Resume only ever makes sense for 1 frame. - _Unwind_State state = - resume ? _US_UNWIND_FRAME_RESUME : _US_UNWIND_FRAME_STARTING; - if (resume && frame_count == 1) { - // On a resume, first unwind the _Unwind_Resume() frame. The next frame - // is now the landing pad for the cleanup from a previous execution of - // phase2. To continue unwindingly correctly, replace VRS[15] with the - // IP of the frame that the previous run of phase2 installed the context - // for. After this, continue unwinding as if normal. - // - // See #7.4.6 for details. + // _Unwind_RaiseException or _Unwind_Resume). + // + // Resume only ever makes sense for 1 frame. + _Unwind_State state = + resume ? _US_UNWIND_FRAME_RESUME : _US_UNWIND_FRAME_STARTING; + if (resume && frame_count == 1) { + // On a resume, first unwind the _Unwind_Resume() frame. The next frame + // is now the landing pad for the cleanup from a previous execution of + // phase2. To continue unwindingly correctly, replace VRS[15] with the + // IP of the frame that the previous run of phase2 installed the context + // for. After this, continue unwinding as if normal. + // + // See #7.4.6 for details. __unw_set_reg(cursor, UNW_REG_IP, exception_object->unwinder_cache.reserved2); - resume = false; - } - - // Get info about this frame. - unw_word_t sp; - unw_proc_info_t frameInfo; + resume = false; + } + + // Get info about this frame. + unw_word_t sp; + unw_proc_info_t frameInfo; __unw_get_reg(cursor, UNW_REG_SP, &sp); if (__unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): __unw_get_proc_info " "failed => _URC_FATAL_PHASE2_ERROR", static_cast<void *>(exception_object)); - return _URC_FATAL_PHASE2_ERROR; - } - + return _URC_FATAL_PHASE2_ERROR; + } + #ifndef NDEBUG - // When tracing, print state information. - if (_LIBUNWIND_TRACING_UNWINDING) { - char functionBuf[512]; - const char *functionName = functionBuf; - unw_word_t offset; + // When tracing, print state information. + if (_LIBUNWIND_TRACING_UNWINDING) { + char functionBuf[512]; + const char *functionName = functionBuf; + unw_word_t offset; if ((__unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf), &offset) != UNW_ESUCCESS) || - (frameInfo.start_ip + offset > frameInfo.end_ip)) - functionName = ".anonymous."; - _LIBUNWIND_TRACE_UNWINDING( + (frameInfo.start_ip + offset > frameInfo.end_ip)) + functionName = ".anonymous."; + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): start_ip=0x%" PRIxPTR ", func=%s, sp=0x%" PRIxPTR ", " "lsda=0x%" PRIxPTR ", personality=0x%" PRIxPTR "", static_cast<void *>(exception_object), frameInfo.start_ip, functionName, sp, frameInfo.lsda, frameInfo.handler); - } + } #endif - - // If there is a personality routine, tell it we are unwinding. - if (frameInfo.handler != 0) { + + // If there is a personality routine, tell it we are unwinding. + if (frameInfo.handler != 0) { _Unwind_Personality_Fn p = (_Unwind_Personality_Fn)(intptr_t)(frameInfo.handler); struct _Unwind_Context *context = (struct _Unwind_Context *)(cursor); - // EHABI #7.2 - exception_object->pr_cache.fnstart = frameInfo.start_ip; - exception_object->pr_cache.ehtp = - (_Unwind_EHT_Header *)frameInfo.unwind_info; - exception_object->pr_cache.additional = frameInfo.flags; - _Unwind_Reason_Code personalityResult = - (*p)(state, exception_object, context); - switch (personalityResult) { - case _URC_CONTINUE_UNWIND: - // Continue unwinding - _LIBUNWIND_TRACE_UNWINDING( + // EHABI #7.2 + exception_object->pr_cache.fnstart = frameInfo.start_ip; + exception_object->pr_cache.ehtp = + (_Unwind_EHT_Header *)frameInfo.unwind_info; + exception_object->pr_cache.additional = frameInfo.flags; + _Unwind_Reason_Code personalityResult = + (*p)(state, exception_object, context); + switch (personalityResult) { + case _URC_CONTINUE_UNWIND: + // Continue unwinding + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND", - static_cast<void *>(exception_object)); - // EHABI #7.2 - if (sp == exception_object->barrier_cache.sp) { - // Phase 1 said we would stop at this frame, but we did not... - _LIBUNWIND_ABORT("during phase1 personality function said it would " - "stop here, but now in phase2 it did not stop here"); - } - break; - case _URC_INSTALL_CONTEXT: - _LIBUNWIND_TRACE_UNWINDING( + static_cast<void *>(exception_object)); + // EHABI #7.2 + if (sp == exception_object->barrier_cache.sp) { + // Phase 1 said we would stop at this frame, but we did not... + _LIBUNWIND_ABORT("during phase1 personality function said it would " + "stop here, but now in phase2 it did not stop here"); + } + break; + case _URC_INSTALL_CONTEXT: + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): _URC_INSTALL_CONTEXT", - static_cast<void *>(exception_object)); - // Personality routine says to transfer control to landing pad. - // We may get control back if landing pad calls _Unwind_Resume(). - if (_LIBUNWIND_TRACING_UNWINDING) { - unw_word_t pc; + static_cast<void *>(exception_object)); + // Personality routine says to transfer control to landing pad. + // We may get control back if landing pad calls _Unwind_Resume(). + if (_LIBUNWIND_TRACING_UNWINDING) { + unw_word_t pc; __unw_get_reg(cursor, UNW_REG_IP, &pc); __unw_get_reg(cursor, UNW_REG_SP, &sp); - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): re-entering " + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): re-entering " "user code with ip=0x%" PRIxPTR ", sp=0x%" PRIxPTR, - static_cast<void *>(exception_object), + static_cast<void *>(exception_object), pc, sp); - } - - { - // EHABI #7.4.1 says we need to preserve pc for when _Unwind_Resume - // is called back, to find this same frame. - unw_word_t pc; + } + + { + // EHABI #7.4.1 says we need to preserve pc for when _Unwind_Resume + // is called back, to find this same frame. + unw_word_t pc; __unw_get_reg(cursor, UNW_REG_IP, &pc); - exception_object->unwinder_cache.reserved2 = (uint32_t)pc; - } + exception_object->unwinder_cache.reserved2 = (uint32_t)pc; + } __unw_resume(cursor); // __unw_resume() only returns if there was an error. - return _URC_FATAL_PHASE2_ERROR; - - // # EHABI #7.4.3 - case _URC_FAILURE: - abort(); - - default: - // Personality routine returned an unknown result code. - _LIBUNWIND_DEBUG_LOG("personality function returned unknown result %d", - personalityResult); - return _URC_FATAL_PHASE2_ERROR; - } - } - frame_count++; - } - - // Clean up phase did not resume at the frame that the search phase - // said it would... - return _URC_FATAL_PHASE2_ERROR; -} - + return _URC_FATAL_PHASE2_ERROR; + + // # EHABI #7.4.3 + case _URC_FAILURE: + abort(); + + default: + // Personality routine returned an unknown result code. + _LIBUNWIND_DEBUG_LOG("personality function returned unknown result %d", + personalityResult); + return _URC_FATAL_PHASE2_ERROR; + } + } + frame_count++; + } + + // Clean up phase did not resume at the frame that the search phase + // said it would... + return _URC_FATAL_PHASE2_ERROR; +} + static _Unwind_Reason_Code unwind_phase2_forced(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object, _Unwind_Stop_Fn stop, @@ -811,53 +811,53 @@ unwind_phase2_forced(unw_context_t *uc, unw_cursor_t *cursor, return _URC_FATAL_PHASE2_ERROR; } -/// Called by __cxa_throw. Only returns if there is a fatal error. -_LIBUNWIND_EXPORT _Unwind_Reason_Code -_Unwind_RaiseException(_Unwind_Exception *exception_object) { +/// Called by __cxa_throw. Only returns if there is a fatal error. +_LIBUNWIND_EXPORT _Unwind_Reason_Code +_Unwind_RaiseException(_Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_RaiseException(ex_obj=%p)", - static_cast<void *>(exception_object)); - unw_context_t uc; + static_cast<void *>(exception_object)); + unw_context_t uc; unw_cursor_t cursor; __unw_getcontext(&uc); - - // This field for is for compatibility with GCC to say this isn't a forced - // unwind. EHABI #7.2 - exception_object->unwinder_cache.reserved1 = 0; - - // phase 1: the search phase + + // This field for is for compatibility with GCC to say this isn't a forced + // unwind. EHABI #7.2 + exception_object->unwinder_cache.reserved1 = 0; + + // phase 1: the search phase _Unwind_Reason_Code phase1 = unwind_phase1(&uc, &cursor, exception_object); - if (phase1 != _URC_NO_REASON) - return phase1; - - // phase 2: the clean up phase + if (phase1 != _URC_NO_REASON) + return phase1; + + // phase 2: the clean up phase return unwind_phase2(&uc, &cursor, exception_object, false); -} - -_LIBUNWIND_EXPORT void _Unwind_Complete(_Unwind_Exception* exception_object) { - // This is to be called when exception handling completes to give us a chance - // to perform any housekeeping. EHABI #7.2. But we have nothing to do here. - (void)exception_object; -} - -/// When _Unwind_RaiseException() is in phase2, it hands control -/// to the personality function at each frame. The personality -/// may force a jump to a landing pad in that function, the landing -/// pad code may then call _Unwind_Resume() to continue with the -/// unwinding. Note: the call to _Unwind_Resume() is from compiler -/// geneated user code. All other _Unwind_* routines are called -/// by the C++ runtime __cxa_* routines. -/// -/// Note: re-throwing an exception (as opposed to continuing the unwind) -/// is implemented by having the code call __cxa_rethrow() which -/// in turn calls _Unwind_Resume_or_Rethrow(). -_LIBUNWIND_EXPORT void -_Unwind_Resume(_Unwind_Exception *exception_object) { +} + +_LIBUNWIND_EXPORT void _Unwind_Complete(_Unwind_Exception* exception_object) { + // This is to be called when exception handling completes to give us a chance + // to perform any housekeeping. EHABI #7.2. But we have nothing to do here. + (void)exception_object; +} + +/// When _Unwind_RaiseException() is in phase2, it hands control +/// to the personality function at each frame. The personality +/// may force a jump to a landing pad in that function, the landing +/// pad code may then call _Unwind_Resume() to continue with the +/// unwinding. Note: the call to _Unwind_Resume() is from compiler +/// geneated user code. All other _Unwind_* routines are called +/// by the C++ runtime __cxa_* routines. +/// +/// Note: re-throwing an exception (as opposed to continuing the unwind) +/// is implemented by having the code call __cxa_rethrow() which +/// in turn calls _Unwind_Resume_or_Rethrow(). +_LIBUNWIND_EXPORT void +_Unwind_Resume(_Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_Resume(ex_obj=%p)", - static_cast<void *>(exception_object)); - unw_context_t uc; + static_cast<void *>(exception_object)); + unw_context_t uc; unw_cursor_t cursor; __unw_getcontext(&uc); - + if (exception_object->unwinder_cache.reserved1) unwind_phase2_forced( &uc, &cursor, exception_object, @@ -865,77 +865,77 @@ _Unwind_Resume(_Unwind_Exception *exception_object) { (void *)exception_object->unwinder_cache.reserved3); else unwind_phase2(&uc, &cursor, exception_object, true); - - // Clients assume _Unwind_Resume() does not return, so all we can do is abort. - _LIBUNWIND_ABORT("_Unwind_Resume() can't return"); -} - -/// Called by personality handler during phase 2 to get LSDA for current frame. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) { - unw_cursor_t *cursor = (unw_cursor_t *)context; - unw_proc_info_t frameInfo; - uintptr_t result = 0; + + // Clients assume _Unwind_Resume() does not return, so all we can do is abort. + _LIBUNWIND_ABORT("_Unwind_Resume() can't return"); +} + +/// Called by personality handler during phase 2 to get LSDA for current frame. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) { + unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_proc_info_t frameInfo; + uintptr_t result = 0; if (__unw_get_proc_info(cursor, &frameInfo) == UNW_ESUCCESS) - result = (uintptr_t)frameInfo.lsda; - _LIBUNWIND_TRACE_API( + result = (uintptr_t)frameInfo.lsda; + _LIBUNWIND_TRACE_API( "_Unwind_GetLanguageSpecificData(context=%p) => 0x%llx", - static_cast<void *>(context), (long long)result); - return result; -} - + static_cast<void *>(context), (long long)result); + return result; +} + [[maybe_unused]] static uint64_t ValueAsBitPattern(_Unwind_VRS_DataRepresentation representation, - void* valuep) { - uint64_t value = 0; - switch (representation) { - case _UVRSD_UINT32: - case _UVRSD_FLOAT: - memcpy(&value, valuep, sizeof(uint32_t)); - break; - - case _UVRSD_VFPX: - case _UVRSD_UINT64: - case _UVRSD_DOUBLE: - memcpy(&value, valuep, sizeof(uint64_t)); - break; - } - return value; -} - + void* valuep) { + uint64_t value = 0; + switch (representation) { + case _UVRSD_UINT32: + case _UVRSD_FLOAT: + memcpy(&value, valuep, sizeof(uint32_t)); + break; + + case _UVRSD_VFPX: + case _UVRSD_UINT64: + case _UVRSD_DOUBLE: + memcpy(&value, valuep, sizeof(uint64_t)); + break; + } + return value; +} + _LIBUNWIND_EXPORT _Unwind_VRS_Result -_Unwind_VRS_Set(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, - uint32_t regno, _Unwind_VRS_DataRepresentation representation, - void *valuep) { - _LIBUNWIND_TRACE_API("_Unwind_VRS_Set(context=%p, regclass=%d, reg=%d, " +_Unwind_VRS_Set(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, + uint32_t regno, _Unwind_VRS_DataRepresentation representation, + void *valuep) { + _LIBUNWIND_TRACE_API("_Unwind_VRS_Set(context=%p, regclass=%d, reg=%d, " "rep=%d, value=0x%llX)", - static_cast<void *>(context), regclass, regno, - representation, - ValueAsBitPattern(representation, valuep)); - unw_cursor_t *cursor = (unw_cursor_t *)context; - switch (regclass) { - case _UVRSC_CORE: - if (representation != _UVRSD_UINT32 || regno > 15) - return _UVRSR_FAILED; + static_cast<void *>(context), regclass, regno, + representation, + ValueAsBitPattern(representation, valuep)); + unw_cursor_t *cursor = (unw_cursor_t *)context; + switch (regclass) { + case _UVRSC_CORE: + if (representation != _UVRSD_UINT32 || regno > 15) + return _UVRSR_FAILED; return __unw_set_reg(cursor, (unw_regnum_t)(UNW_ARM_R0 + regno), *(unw_word_t *)valuep) == UNW_ESUCCESS - ? _UVRSR_OK - : _UVRSR_FAILED; - case _UVRSC_VFP: - if (representation != _UVRSD_VFPX && representation != _UVRSD_DOUBLE) - return _UVRSR_FAILED; - if (representation == _UVRSD_VFPX) { - // Can only touch d0-15 with FSTMFDX. - if (regno > 15) - return _UVRSR_FAILED; + ? _UVRSR_OK + : _UVRSR_FAILED; + case _UVRSC_VFP: + if (representation != _UVRSD_VFPX && representation != _UVRSD_DOUBLE) + return _UVRSR_FAILED; + if (representation == _UVRSD_VFPX) { + // Can only touch d0-15 with FSTMFDX. + if (regno > 15) + return _UVRSR_FAILED; __unw_save_vfp_as_X(cursor); - } else { - if (regno > 31) - return _UVRSR_FAILED; - } + } else { + if (regno > 31) + return _UVRSR_FAILED; + } return __unw_set_fpreg(cursor, (unw_regnum_t)(UNW_ARM_D0 + regno), *(unw_fpreg_t *)valuep) == UNW_ESUCCESS - ? _UVRSR_OK - : _UVRSR_FAILED; + ? _UVRSR_OK + : _UVRSR_FAILED; #if defined(__ARM_WMMX) case _UVRSC_WMMXC: if (representation != _UVRSD_UINT32 || regno > 3) @@ -944,13 +944,13 @@ _Unwind_VRS_Set(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, *(unw_word_t *)valuep) == UNW_ESUCCESS ? _UVRSR_OK : _UVRSR_FAILED; - case _UVRSC_WMMXD: - if (representation != _UVRSD_DOUBLE || regno > 31) - return _UVRSR_FAILED; + case _UVRSC_WMMXD: + if (representation != _UVRSD_DOUBLE || regno > 31) + return _UVRSR_FAILED; return __unw_set_fpreg(cursor, (unw_regnum_t)(UNW_ARM_WR0 + regno), *(unw_fpreg_t *)valuep) == UNW_ESUCCESS - ? _UVRSR_OK - : _UVRSR_FAILED; + ? _UVRSR_OK + : _UVRSR_FAILED; #else case _UVRSC_WMMXC: case _UVRSC_WMMXD: @@ -965,40 +965,40 @@ _Unwind_VRS_Set(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, ? _UVRSR_OK : _UVRSR_FAILED; break; - } - _LIBUNWIND_ABORT("unsupported register class"); -} - -static _Unwind_VRS_Result -_Unwind_VRS_Get_Internal(_Unwind_Context *context, - _Unwind_VRS_RegClass regclass, uint32_t regno, - _Unwind_VRS_DataRepresentation representation, - void *valuep) { - unw_cursor_t *cursor = (unw_cursor_t *)context; - switch (regclass) { - case _UVRSC_CORE: - if (representation != _UVRSD_UINT32 || regno > 15) - return _UVRSR_FAILED; + } + _LIBUNWIND_ABORT("unsupported register class"); +} + +static _Unwind_VRS_Result +_Unwind_VRS_Get_Internal(_Unwind_Context *context, + _Unwind_VRS_RegClass regclass, uint32_t regno, + _Unwind_VRS_DataRepresentation representation, + void *valuep) { + unw_cursor_t *cursor = (unw_cursor_t *)context; + switch (regclass) { + case _UVRSC_CORE: + if (representation != _UVRSD_UINT32 || regno > 15) + return _UVRSR_FAILED; return __unw_get_reg(cursor, (unw_regnum_t)(UNW_ARM_R0 + regno), (unw_word_t *)valuep) == UNW_ESUCCESS - ? _UVRSR_OK - : _UVRSR_FAILED; - case _UVRSC_VFP: - if (representation != _UVRSD_VFPX && representation != _UVRSD_DOUBLE) - return _UVRSR_FAILED; - if (representation == _UVRSD_VFPX) { - // Can only touch d0-15 with FSTMFDX. - if (regno > 15) - return _UVRSR_FAILED; + ? _UVRSR_OK + : _UVRSR_FAILED; + case _UVRSC_VFP: + if (representation != _UVRSD_VFPX && representation != _UVRSD_DOUBLE) + return _UVRSR_FAILED; + if (representation == _UVRSD_VFPX) { + // Can only touch d0-15 with FSTMFDX. + if (regno > 15) + return _UVRSR_FAILED; __unw_save_vfp_as_X(cursor); - } else { - if (regno > 31) - return _UVRSR_FAILED; - } + } else { + if (regno > 31) + return _UVRSR_FAILED; + } return __unw_get_fpreg(cursor, (unw_regnum_t)(UNW_ARM_D0 + regno), (unw_fpreg_t *)valuep) == UNW_ESUCCESS - ? _UVRSR_OK - : _UVRSR_FAILED; + ? _UVRSR_OK + : _UVRSR_FAILED; #if defined(__ARM_WMMX) case _UVRSC_WMMXC: if (representation != _UVRSD_UINT32 || regno > 3) @@ -1007,13 +1007,13 @@ _Unwind_VRS_Get_Internal(_Unwind_Context *context, (unw_word_t *)valuep) == UNW_ESUCCESS ? _UVRSR_OK : _UVRSR_FAILED; - case _UVRSC_WMMXD: - if (representation != _UVRSD_DOUBLE || regno > 31) - return _UVRSR_FAILED; + case _UVRSC_WMMXD: + if (representation != _UVRSD_DOUBLE || regno > 31) + return _UVRSR_FAILED; return __unw_get_fpreg(cursor, (unw_regnum_t)(UNW_ARM_WR0 + regno), (unw_fpreg_t *)valuep) == UNW_ESUCCESS - ? _UVRSR_OK - : _UVRSR_FAILED; + ? _UVRSR_OK + : _UVRSR_FAILED; #else case _UVRSC_WMMXC: case _UVRSC_WMMXD: @@ -1028,85 +1028,85 @@ _Unwind_VRS_Get_Internal(_Unwind_Context *context, ? _UVRSR_OK : _UVRSR_FAILED; break; - } - _LIBUNWIND_ABORT("unsupported register class"); -} - + } + _LIBUNWIND_ABORT("unsupported register class"); +} + _LIBUNWIND_EXPORT _Unwind_VRS_Result _Unwind_VRS_Get(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, uint32_t regno, _Unwind_VRS_DataRepresentation representation, void *valuep) { - _Unwind_VRS_Result result = - _Unwind_VRS_Get_Internal(context, regclass, regno, representation, - valuep); - _LIBUNWIND_TRACE_API("_Unwind_VRS_Get(context=%p, regclass=%d, reg=%d, " + _Unwind_VRS_Result result = + _Unwind_VRS_Get_Internal(context, regclass, regno, representation, + valuep); + _LIBUNWIND_TRACE_API("_Unwind_VRS_Get(context=%p, regclass=%d, reg=%d, " "rep=%d, value=0x%llX, result = %d)", - static_cast<void *>(context), regclass, regno, - representation, - ValueAsBitPattern(representation, valuep), result); - return result; -} - -_Unwind_VRS_Result -_Unwind_VRS_Pop(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, - uint32_t discriminator, - _Unwind_VRS_DataRepresentation representation) { - _LIBUNWIND_TRACE_API("_Unwind_VRS_Pop(context=%p, regclass=%d, " + static_cast<void *>(context), regclass, regno, + representation, + ValueAsBitPattern(representation, valuep), result); + return result; +} + +_Unwind_VRS_Result +_Unwind_VRS_Pop(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, + uint32_t discriminator, + _Unwind_VRS_DataRepresentation representation) { + _LIBUNWIND_TRACE_API("_Unwind_VRS_Pop(context=%p, regclass=%d, " "discriminator=%d, representation=%d)", - static_cast<void *>(context), regclass, discriminator, - representation); - switch (regclass) { + static_cast<void *>(context), regclass, discriminator, + representation); + switch (regclass) { case _UVRSC_WMMXC: #if !defined(__ARM_WMMX) break; #endif case _UVRSC_CORE: { - if (representation != _UVRSD_UINT32) - return _UVRSR_FAILED; - // When popping SP from the stack, we don't want to override it from the - // computed new stack location. See EHABI #7.5.4 table 3. - bool poppedSP = false; - uint32_t* sp; - if (_Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_SP, - _UVRSD_UINT32, &sp) != _UVRSR_OK) { - return _UVRSR_FAILED; - } - for (uint32_t i = 0; i < 16; ++i) { - if (!(discriminator & static_cast<uint32_t>(1 << i))) - continue; - uint32_t value = *sp++; - if (regclass == _UVRSC_CORE && i == 13) - poppedSP = true; - if (_Unwind_VRS_Set(context, regclass, i, - _UVRSD_UINT32, &value) != _UVRSR_OK) { - return _UVRSR_FAILED; - } - } - if (!poppedSP) { - return _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, - _UVRSD_UINT32, &sp); - } - return _UVRSR_OK; - } + if (representation != _UVRSD_UINT32) + return _UVRSR_FAILED; + // When popping SP from the stack, we don't want to override it from the + // computed new stack location. See EHABI #7.5.4 table 3. + bool poppedSP = false; + uint32_t* sp; + if (_Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_SP, + _UVRSD_UINT32, &sp) != _UVRSR_OK) { + return _UVRSR_FAILED; + } + for (uint32_t i = 0; i < 16; ++i) { + if (!(discriminator & static_cast<uint32_t>(1 << i))) + continue; + uint32_t value = *sp++; + if (regclass == _UVRSC_CORE && i == 13) + poppedSP = true; + if (_Unwind_VRS_Set(context, regclass, i, + _UVRSD_UINT32, &value) != _UVRSR_OK) { + return _UVRSR_FAILED; + } + } + if (!poppedSP) { + return _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, + _UVRSD_UINT32, &sp); + } + return _UVRSR_OK; + } case _UVRSC_WMMXD: #if !defined(__ARM_WMMX) break; #endif case _UVRSC_VFP: { - if (representation != _UVRSD_VFPX && representation != _UVRSD_DOUBLE) - return _UVRSR_FAILED; - uint32_t first = discriminator >> 16; - uint32_t count = discriminator & 0xffff; - uint32_t end = first+count; - uint32_t* sp; - if (_Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_SP, - _UVRSD_UINT32, &sp) != _UVRSR_OK) { - return _UVRSR_FAILED; - } - // For _UVRSD_VFPX, we're assuming the data is stored in FSTMX "standard - // format 1", which is equivalent to FSTMD + a padding word. - for (uint32_t i = first; i < end; ++i) { - // SP is only 32-bit aligned so don't copy 64-bit at a time. + if (representation != _UVRSD_VFPX && representation != _UVRSD_DOUBLE) + return _UVRSR_FAILED; + uint32_t first = discriminator >> 16; + uint32_t count = discriminator & 0xffff; + uint32_t end = first+count; + uint32_t* sp; + if (_Unwind_VRS_Get(context, _UVRSC_CORE, UNW_ARM_SP, + _UVRSD_UINT32, &sp) != _UVRSR_OK) { + return _UVRSR_FAILED; + } + // For _UVRSD_VFPX, we're assuming the data is stored in FSTMX "standard + // format 1", which is equivalent to FSTMD + a padding word. + for (uint32_t i = first; i < end; ++i) { + // SP is only 32-bit aligned so don't copy 64-bit at a time. uint64_t w0 = *sp++; uint64_t w1 = *sp++; #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ @@ -1116,15 +1116,15 @@ _Unwind_VRS_Pop(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, #else #error "Unable to determine endianess" #endif - if (_Unwind_VRS_Set(context, regclass, i, representation, &value) != - _UVRSR_OK) - return _UVRSR_FAILED; - } - if (representation == _UVRSD_VFPX) - ++sp; - return _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, - &sp); - } + if (_Unwind_VRS_Set(context, regclass, i, representation, &value) != + _UVRSR_OK) + return _UVRSR_FAILED; + } + if (representation == _UVRSD_VFPX) + ++sp; + return _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_SP, _UVRSD_UINT32, + &sp); + } case _UVRSC_PSEUDO: { if (representation != _UVRSD_UINT32 || discriminator != 0) return _UVRSR_FAILED; @@ -1139,10 +1139,10 @@ _Unwind_VRS_Pop(_Unwind_Context *context, _Unwind_VRS_RegClass regclass, return _Unwind_VRS_Set(context, _UVRSC_CORE, UNW_ARM_RA_AUTH_CODE, _UVRSD_UINT32, &pac); } - } - _LIBUNWIND_ABORT("unsupported register class"); -} - + } + _LIBUNWIND_ABORT("unsupported register class"); +} + /// Not used by C++. /// Unwinds stack, calling "stop" function at each frame. /// Could be used to implement longjmp(). @@ -1164,44 +1164,44 @@ _Unwind_ForcedUnwind(_Unwind_Exception *exception_object, _Unwind_Stop_Fn stop, stop_parameter); } -/// Called by personality handler during phase 2 to find the start of the -/// function. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetRegionStart(struct _Unwind_Context *context) { - unw_cursor_t *cursor = (unw_cursor_t *)context; - unw_proc_info_t frameInfo; - uintptr_t result = 0; +/// Called by personality handler during phase 2 to find the start of the +/// function. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetRegionStart(struct _Unwind_Context *context) { + unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_proc_info_t frameInfo; + uintptr_t result = 0; if (__unw_get_proc_info(cursor, &frameInfo) == UNW_ESUCCESS) - result = (uintptr_t)frameInfo.start_ip; + result = (uintptr_t)frameInfo.start_ip; _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p) => 0x%llX", - static_cast<void *>(context), (long long)result); - return result; -} - - -/// Called by personality handler during phase 2 if a foreign exception -// is caught. -_LIBUNWIND_EXPORT void -_Unwind_DeleteException(_Unwind_Exception *exception_object) { + static_cast<void *>(context), (long long)result); + return result; +} + + +/// Called by personality handler during phase 2 if a foreign exception +// is caught. +_LIBUNWIND_EXPORT void +_Unwind_DeleteException(_Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)", - static_cast<void *>(exception_object)); - if (exception_object->exception_cleanup != NULL) - (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT, - exception_object); -} - -extern "C" _LIBUNWIND_EXPORT _Unwind_Reason_Code + static_cast<void *>(exception_object)); + if (exception_object->exception_cleanup != NULL) + (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT, + exception_object); +} + +extern "C" _LIBUNWIND_EXPORT _Unwind_Reason_Code __gnu_unwind_frame(_Unwind_Exception * /* exception_object */, - struct _Unwind_Context *context) { - unw_cursor_t *cursor = (unw_cursor_t *)context; + struct _Unwind_Context *context) { + unw_cursor_t *cursor = (unw_cursor_t *)context; switch (__unw_step(cursor)) { case UNW_STEP_SUCCESS: return _URC_OK; case UNW_STEP_END: return _URC_END_OF_STACK; default: - return _URC_FAILURE; + return _URC_FAILURE; } -} - +} + #endif // defined(_LIBUNWIND_ARM_EHABI) diff --git a/contrib/libs/libunwind/src/Unwind-EHABI.h b/contrib/libs/libunwind/src/Unwind-EHABI.h index f24def91ed..ff3b5fc6fe 100644 --- a/contrib/libs/libunwind/src/Unwind-EHABI.h +++ b/contrib/libs/libunwind/src/Unwind-EHABI.h @@ -1,50 +1,50 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -//===----------------------------------------------------------------------===// - -#ifndef __UNWIND_EHABI_H__ -#define __UNWIND_EHABI_H__ - -#include <__libunwind_config.h> - +// +// +//===----------------------------------------------------------------------===// + +#ifndef __UNWIND_EHABI_H__ +#define __UNWIND_EHABI_H__ + +#include <__libunwind_config.h> + #if defined(_LIBUNWIND_ARM_EHABI) - -#include <stdint.h> -#include <unwind.h> - -// Unable to unwind in the ARM index table (section 5 EHABI). -#define UNW_EXIDX_CANTUNWIND 0x1 - -static inline uint32_t signExtendPrel31(uint32_t data) { - return data | ((data & 0x40000000u) << 1); -} - -static inline uint32_t readPrel31(const uint32_t *data) { - return (((uint32_t)(uintptr_t)data) + signExtendPrel31(*data)); -} - -#if defined(__cplusplus) -extern "C" { -#endif - -extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr0( - _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); - -extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr1( - _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); - -extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr2( - _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); - -#if defined(__cplusplus) -} // extern "C" -#endif - + +#include <stdint.h> +#include <unwind.h> + +// Unable to unwind in the ARM index table (section 5 EHABI). +#define UNW_EXIDX_CANTUNWIND 0x1 + +static inline uint32_t signExtendPrel31(uint32_t data) { + return data | ((data & 0x40000000u) << 1); +} + +static inline uint32_t readPrel31(const uint32_t *data) { + return (((uint32_t)(uintptr_t)data) + signExtendPrel31(*data)); +} + +#if defined(__cplusplus) +extern "C" { +#endif + +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr0( + _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); + +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr1( + _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); + +extern _Unwind_Reason_Code __aeabi_unwind_cpp_pr2( + _Unwind_State state, _Unwind_Control_Block *ucbp, _Unwind_Context *context); + +#if defined(__cplusplus) +} // extern "C" +#endif + #endif // defined(_LIBUNWIND_ARM_EHABI) - -#endif // __UNWIND_EHABI_H__ + +#endif // __UNWIND_EHABI_H__ diff --git a/contrib/libs/libunwind/src/Unwind-sjlj.c b/contrib/libs/libunwind/src/Unwind-sjlj.c index 18ece59862..d487995bb7 100644 --- a/contrib/libs/libunwind/src/Unwind-sjlj.c +++ b/contrib/libs/libunwind/src/Unwind-sjlj.c @@ -1,23 +1,23 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Implements setjump-longjump based C++ exceptions -// -//===----------------------------------------------------------------------===// - -#include <unwind.h> - +// +// +// Implements setjump-longjump based C++ exceptions +// +//===----------------------------------------------------------------------===// + +#include <unwind.h> + #include <inttypes.h> -#include <stdint.h> -#include <stdbool.h> -#include <stdlib.h> - -#include "config.h" - +#include <stdint.h> +#include <stdbool.h> +#include <stdlib.h> + +#include "config.h" + /// With SJLJ based exceptions, any function that has a catch clause or needs to /// do any clean up when an exception propagates through it, needs to call /// \c _Unwind_SjLj_Register at the start of the function and @@ -25,19 +25,19 @@ /// the address of a block of memory in the function's stack frame. The runtime /// keeps a linked list (stack) of these blocks - one per thread. The calling /// function also sets the personality and lsda fields of the block. - + #if defined(_LIBUNWIND_BUILD_SJLJ_APIS) - -struct _Unwind_FunctionContext { - // next function in stack of handlers - struct _Unwind_FunctionContext *prev; - + +struct _Unwind_FunctionContext { + // next function in stack of handlers + struct _Unwind_FunctionContext *prev; + #if defined(__ve__) // VE requires to store 64 bit pointers in the buffer for SjLj execption. // We expand the size of values defined here. This size must be matched // to the size returned by TargetMachine::getSjLjDataSize(). - // set by calling function before registering to be the landing pad + // set by calling function before registering to be the landing pad uint64_t resumeLocation; // set by personality handler to be parameters passed to landing pad function @@ -45,20 +45,20 @@ struct _Unwind_FunctionContext { #else // set by calling function before registering to be the landing pad uint32_t resumeLocation; - - // set by personality handler to be parameters passed to landing pad function + + // set by personality handler to be parameters passed to landing pad function uint32_t resumeParameters[4]; #endif - - // set by calling function before registering + + // set by calling function before registering _Unwind_Personality_Fn personality; // arm offset=24 - uintptr_t lsda; // arm offset=28 - - // variable length array, contains registers to restore - // 0 = r7, 1 = pc, 2 = sp - void *jbuf[]; -}; - + uintptr_t lsda; // arm offset=28 + + // variable length array, contains registers to restore + // 0 = r7, 1 = pc, 2 = sp + void *jbuf[]; +}; + #if defined(_LIBUNWIND_HAS_NO_THREADS) # define _LIBUNWIND_THREAD_LOCAL #else @@ -72,7 +72,7 @@ struct _Unwind_FunctionContext { # error Unable to create thread local storage # endif #endif - + #if !defined(FOR_DYLD) @@ -102,427 +102,427 @@ __Unwind_SjLj_SetTopOfFunctionStack(struct _Unwind_FunctionContext *fc) { #endif -/// Called at start of each function that catches exceptions -_LIBUNWIND_EXPORT void -_Unwind_SjLj_Register(struct _Unwind_FunctionContext *fc) { - fc->prev = __Unwind_SjLj_GetTopOfFunctionStack(); - __Unwind_SjLj_SetTopOfFunctionStack(fc); -} - - -/// Called at end of each function that catches exceptions -_LIBUNWIND_EXPORT void -_Unwind_SjLj_Unregister(struct _Unwind_FunctionContext *fc) { - __Unwind_SjLj_SetTopOfFunctionStack(fc->prev); -} - - -static _Unwind_Reason_Code -unwind_phase1(struct _Unwind_Exception *exception_object) { - _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack(); +/// Called at start of each function that catches exceptions +_LIBUNWIND_EXPORT void +_Unwind_SjLj_Register(struct _Unwind_FunctionContext *fc) { + fc->prev = __Unwind_SjLj_GetTopOfFunctionStack(); + __Unwind_SjLj_SetTopOfFunctionStack(fc); +} + + +/// Called at end of each function that catches exceptions +_LIBUNWIND_EXPORT void +_Unwind_SjLj_Unregister(struct _Unwind_FunctionContext *fc) { + __Unwind_SjLj_SetTopOfFunctionStack(fc->prev); +} + + +static _Unwind_Reason_Code +unwind_phase1(struct _Unwind_Exception *exception_object) { + _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack(); _LIBUNWIND_TRACE_UNWINDING("unwind_phase1: initial function-context=%p", (void *)c); - - // walk each frame looking for a place to stop - for (bool handlerNotFound = true; handlerNotFound; c = c->prev) { - - // check for no more frames - if (c == NULL) { - _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): reached " + + // walk each frame looking for a place to stop + for (bool handlerNotFound = true; handlerNotFound; c = c->prev) { + + // check for no more frames + if (c == NULL) { + _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): reached " "bottom => _URC_END_OF_STACK", (void *)exception_object); - return _URC_END_OF_STACK; - } - + return _URC_END_OF_STACK; + } + _LIBUNWIND_TRACE_UNWINDING("unwind_phase1: function-context=%p", (void *)c); - // if there is a personality routine, ask it if it will want to stop at this - // frame - if (c->personality != NULL) { - _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): calling " + // if there is a personality routine, ask it if it will want to stop at this + // frame + if (c->personality != NULL) { + _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): calling " "personality function %p", (void *)exception_object, (void *)c->personality); - _Unwind_Reason_Code personalityResult = (*c->personality)( - 1, _UA_SEARCH_PHASE, exception_object->exception_class, - exception_object, (struct _Unwind_Context *)c); - switch (personalityResult) { - case _URC_HANDLER_FOUND: - // found a catch clause or locals that need destructing in this frame - // stop search and remember function context - handlerNotFound = false; - exception_object->private_2 = (uintptr_t) c; - _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): " + _Unwind_Reason_Code personalityResult = (*c->personality)( + 1, _UA_SEARCH_PHASE, exception_object->exception_class, + exception_object, (struct _Unwind_Context *)c); + switch (personalityResult) { + case _URC_HANDLER_FOUND: + // found a catch clause or locals that need destructing in this frame + // stop search and remember function context + handlerNotFound = false; + exception_object->private_2 = (uintptr_t) c; + _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): " "_URC_HANDLER_FOUND", (void *)exception_object); - return _URC_NO_REASON; - - case _URC_CONTINUE_UNWIND: - _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): " + return _URC_NO_REASON; + + case _URC_CONTINUE_UNWIND: + _LIBUNWIND_TRACE_UNWINDING("unwind_phase1(ex_ojb=%p): " "_URC_CONTINUE_UNWIND", (void *)exception_object); - // continue unwinding - break; - - default: - // something went wrong - _LIBUNWIND_TRACE_UNWINDING( + // continue unwinding + break; + + default: + // something went wrong + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR", (void *)exception_object); - return _URC_FATAL_PHASE1_ERROR; - } - } - } - return _URC_NO_REASON; -} - - -static _Unwind_Reason_Code -unwind_phase2(struct _Unwind_Exception *exception_object) { + return _URC_FATAL_PHASE1_ERROR; + } + } + } + return _URC_NO_REASON; +} + + +static _Unwind_Reason_Code +unwind_phase2(struct _Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)", (void *)exception_object); - - // walk each frame until we reach where search phase said to stop - _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack(); - while (true) { + + // walk each frame until we reach where search phase said to stop + _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack(); + while (true) { _LIBUNWIND_TRACE_UNWINDING("unwind_phase2s(ex_ojb=%p): context=%p", (void *)exception_object, (void *)c); - - // check for no more frames - if (c == NULL) { + + // check for no more frames + if (c == NULL) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): __unw_step() reached " "bottom => _URC_END_OF_STACK", (void *)exception_object); - return _URC_END_OF_STACK; - } - - // if there is a personality routine, tell it we are unwinding - if (c->personality != NULL) { - _Unwind_Action action = _UA_CLEANUP_PHASE; - if ((uintptr_t) c == exception_object->private_2) - action = (_Unwind_Action)( - _UA_CLEANUP_PHASE | - _UA_HANDLER_FRAME); // tell personality this was the frame it marked - // in phase 1 - _Unwind_Reason_Code personalityResult = - (*c->personality)(1, action, exception_object->exception_class, - exception_object, (struct _Unwind_Context *)c); - switch (personalityResult) { - case _URC_CONTINUE_UNWIND: - // continue unwinding - _LIBUNWIND_TRACE_UNWINDING( + return _URC_END_OF_STACK; + } + + // if there is a personality routine, tell it we are unwinding + if (c->personality != NULL) { + _Unwind_Action action = _UA_CLEANUP_PHASE; + if ((uintptr_t) c == exception_object->private_2) + action = (_Unwind_Action)( + _UA_CLEANUP_PHASE | + _UA_HANDLER_FRAME); // tell personality this was the frame it marked + // in phase 1 + _Unwind_Reason_Code personalityResult = + (*c->personality)(1, action, exception_object->exception_class, + exception_object, (struct _Unwind_Context *)c); + switch (personalityResult) { + case _URC_CONTINUE_UNWIND: + // continue unwinding + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND", (void *)exception_object); - if ((uintptr_t) c == exception_object->private_2) { - // phase 1 said we would stop at this frame, but we did not... - _LIBUNWIND_ABORT("during phase1 personality function said it would " - "stop here, but now if phase2 it did not stop here"); - } - break; - case _URC_INSTALL_CONTEXT: - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): " + if ((uintptr_t) c == exception_object->private_2) { + // phase 1 said we would stop at this frame, but we did not... + _LIBUNWIND_ABORT("during phase1 personality function said it would " + "stop here, but now if phase2 it did not stop here"); + } + break; + case _URC_INSTALL_CONTEXT: + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): " "_URC_INSTALL_CONTEXT, will resume at " "landing pad %p", (void *)exception_object, c->jbuf[1]); - // personality routine says to transfer control to landing pad - // we may get control back if landing pad calls _Unwind_Resume() - __Unwind_SjLj_SetTopOfFunctionStack(c); - __builtin_longjmp(c->jbuf, 1); + // personality routine says to transfer control to landing pad + // we may get control back if landing pad calls _Unwind_Resume() + __Unwind_SjLj_SetTopOfFunctionStack(c); + __builtin_longjmp(c->jbuf, 1); // __unw_resume() only returns if there was an error - return _URC_FATAL_PHASE2_ERROR; - default: - // something went wrong - _LIBUNWIND_DEBUG_LOG("personality function returned unknown result %d", - personalityResult); - return _URC_FATAL_PHASE2_ERROR; - } - } - c = c->prev; - } - - // clean up phase did not resume at the frame that the search phase said it - // would - return _URC_FATAL_PHASE2_ERROR; -} - - -static _Unwind_Reason_Code -unwind_phase2_forced(struct _Unwind_Exception *exception_object, - _Unwind_Stop_Fn stop, void *stop_parameter) { - // walk each frame until we reach where search phase said to stop - _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack(); - while (true) { - - // get next frame (skip over first which is _Unwind_RaiseException) - if (c == NULL) { + return _URC_FATAL_PHASE2_ERROR; + default: + // something went wrong + _LIBUNWIND_DEBUG_LOG("personality function returned unknown result %d", + personalityResult); + return _URC_FATAL_PHASE2_ERROR; + } + } + c = c->prev; + } + + // clean up phase did not resume at the frame that the search phase said it + // would + return _URC_FATAL_PHASE2_ERROR; +} + + +static _Unwind_Reason_Code +unwind_phase2_forced(struct _Unwind_Exception *exception_object, + _Unwind_Stop_Fn stop, void *stop_parameter) { + // walk each frame until we reach where search phase said to stop + _Unwind_FunctionContext_t c = __Unwind_SjLj_GetTopOfFunctionStack(); + while (true) { + + // get next frame (skip over first which is _Unwind_RaiseException) + if (c == NULL) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): __unw_step() reached " "bottom => _URC_END_OF_STACK", (void *)exception_object); - return _URC_END_OF_STACK; - } - - // call stop function at each frame - _Unwind_Action action = - (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE); - _Unwind_Reason_Code stopResult = - (*stop)(1, action, exception_object->exception_class, exception_object, - (struct _Unwind_Context *)c, stop_parameter); - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + return _URC_END_OF_STACK; + } + + // call stop function at each frame + _Unwind_Action action = + (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE); + _Unwind_Reason_Code stopResult = + (*stop)(1, action, exception_object->exception_class, exception_object, + (struct _Unwind_Context *)c, stop_parameter); + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " "stop function returned %d", (void *)exception_object, stopResult); - if (stopResult != _URC_NO_REASON) { - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + if (stopResult != _URC_NO_REASON) { + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " "stopped by stop function", (void *)exception_object); - return _URC_FATAL_PHASE2_ERROR; - } - - // if there is a personality routine, tell it we are unwinding - if (c->personality != NULL) { + return _URC_FATAL_PHASE2_ERROR; + } + + // if there is a personality routine, tell it we are unwinding + if (c->personality != NULL) { _Unwind_Personality_Fn p = (_Unwind_Personality_Fn)c->personality; - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " "calling personality function %p", (void *)exception_object, (void *)p); - _Unwind_Reason_Code personalityResult = - (*p)(1, action, exception_object->exception_class, exception_object, - (struct _Unwind_Context *)c); - switch (personalityResult) { - case _URC_CONTINUE_UNWIND: - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + _Unwind_Reason_Code personalityResult = + (*p)(1, action, exception_object->exception_class, exception_object, + (struct _Unwind_Context *)c); + switch (personalityResult) { + case _URC_CONTINUE_UNWIND: + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " "personality returned _URC_CONTINUE_UNWIND", (void *)exception_object); - // destructors called, continue unwinding - break; - case _URC_INSTALL_CONTEXT: - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + // destructors called, continue unwinding + break; + case _URC_INSTALL_CONTEXT: + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " "personality returned _URC_INSTALL_CONTEXT", (void *)exception_object); - // we may get control back if landing pad calls _Unwind_Resume() - __Unwind_SjLj_SetTopOfFunctionStack(c); - __builtin_longjmp(c->jbuf, 1); - break; - default: - // something went wrong - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " - "personality returned %d, " + // we may get control back if landing pad calls _Unwind_Resume() + __Unwind_SjLj_SetTopOfFunctionStack(c); + __builtin_longjmp(c->jbuf, 1); + break; + default: + // something went wrong + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + "personality returned %d, " "_URC_FATAL_PHASE2_ERROR", (void *)exception_object, personalityResult); - return _URC_FATAL_PHASE2_ERROR; - } - } - c = c->prev; - } - - // call stop function one last time and tell it we've reached the end of the - // stack - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): calling stop " + return _URC_FATAL_PHASE2_ERROR; + } + } + c = c->prev; + } + + // call stop function one last time and tell it we've reached the end of the + // stack + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): calling stop " "function with _UA_END_OF_STACK", (void *)exception_object); - _Unwind_Action lastAction = - (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE | _UA_END_OF_STACK); - (*stop)(1, lastAction, exception_object->exception_class, exception_object, - (struct _Unwind_Context *)c, stop_parameter); - - // clean up phase did not resume at the frame that the search phase said it - // would - return _URC_FATAL_PHASE2_ERROR; -} - - -/// Called by __cxa_throw. Only returns if there is a fatal error -_LIBUNWIND_EXPORT _Unwind_Reason_Code -_Unwind_SjLj_RaiseException(struct _Unwind_Exception *exception_object) { + _Unwind_Action lastAction = + (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE | _UA_END_OF_STACK); + (*stop)(1, lastAction, exception_object->exception_class, exception_object, + (struct _Unwind_Context *)c, stop_parameter); + + // clean up phase did not resume at the frame that the search phase said it + // would + return _URC_FATAL_PHASE2_ERROR; +} + + +/// Called by __cxa_throw. Only returns if there is a fatal error +_LIBUNWIND_EXPORT _Unwind_Reason_Code +_Unwind_SjLj_RaiseException(struct _Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_SjLj_RaiseException(ex_obj=%p)", (void *)exception_object); - - // mark that this is a non-forced unwind, so _Unwind_Resume() can do the right - // thing - exception_object->private_1 = 0; - exception_object->private_2 = 0; - - // phase 1: the search phase - _Unwind_Reason_Code phase1 = unwind_phase1(exception_object); - if (phase1 != _URC_NO_REASON) - return phase1; - - // phase 2: the clean up phase - return unwind_phase2(exception_object); -} - - - -/// When _Unwind_RaiseException() is in phase2, it hands control -/// to the personality function at each frame. The personality -/// may force a jump to a landing pad in that function, the landing -/// pad code may then call _Unwind_Resume() to continue with the -/// unwinding. Note: the call to _Unwind_Resume() is from compiler -/// geneated user code. All other _Unwind_* routines are called -/// by the C++ runtime __cxa_* routines. -/// -/// Re-throwing an exception is implemented by having the code call -/// __cxa_rethrow() which in turn calls _Unwind_Resume_or_Rethrow() -_LIBUNWIND_EXPORT void -_Unwind_SjLj_Resume(struct _Unwind_Exception *exception_object) { + + // mark that this is a non-forced unwind, so _Unwind_Resume() can do the right + // thing + exception_object->private_1 = 0; + exception_object->private_2 = 0; + + // phase 1: the search phase + _Unwind_Reason_Code phase1 = unwind_phase1(exception_object); + if (phase1 != _URC_NO_REASON) + return phase1; + + // phase 2: the clean up phase + return unwind_phase2(exception_object); +} + + + +/// When _Unwind_RaiseException() is in phase2, it hands control +/// to the personality function at each frame. The personality +/// may force a jump to a landing pad in that function, the landing +/// pad code may then call _Unwind_Resume() to continue with the +/// unwinding. Note: the call to _Unwind_Resume() is from compiler +/// geneated user code. All other _Unwind_* routines are called +/// by the C++ runtime __cxa_* routines. +/// +/// Re-throwing an exception is implemented by having the code call +/// __cxa_rethrow() which in turn calls _Unwind_Resume_or_Rethrow() +_LIBUNWIND_EXPORT void +_Unwind_SjLj_Resume(struct _Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_SjLj_Resume(ex_obj=%p)", (void *)exception_object); - - if (exception_object->private_1 != 0) - unwind_phase2_forced(exception_object, - (_Unwind_Stop_Fn) exception_object->private_1, - (void *)exception_object->private_2); - else - unwind_phase2(exception_object); - - // clients assume _Unwind_Resume() does not return, so all we can do is abort. - _LIBUNWIND_ABORT("_Unwind_SjLj_Resume() can't return"); -} - - -/// Called by __cxa_rethrow(). -_LIBUNWIND_EXPORT _Unwind_Reason_Code -_Unwind_SjLj_Resume_or_Rethrow(struct _Unwind_Exception *exception_object) { - _LIBUNWIND_TRACE_API("__Unwind_SjLj_Resume_or_Rethrow(ex_obj=%p), " + + if (exception_object->private_1 != 0) + unwind_phase2_forced(exception_object, + (_Unwind_Stop_Fn) exception_object->private_1, + (void *)exception_object->private_2); + else + unwind_phase2(exception_object); + + // clients assume _Unwind_Resume() does not return, so all we can do is abort. + _LIBUNWIND_ABORT("_Unwind_SjLj_Resume() can't return"); +} + + +/// Called by __cxa_rethrow(). +_LIBUNWIND_EXPORT _Unwind_Reason_Code +_Unwind_SjLj_Resume_or_Rethrow(struct _Unwind_Exception *exception_object) { + _LIBUNWIND_TRACE_API("__Unwind_SjLj_Resume_or_Rethrow(ex_obj=%p), " "private_1=%" PRIuPTR, (void *)exception_object, exception_object->private_1); - // If this is non-forced and a stopping place was found, then this is a - // re-throw. - // Call _Unwind_RaiseException() as if this was a new exception. - if (exception_object->private_1 == 0) { - return _Unwind_SjLj_RaiseException(exception_object); - // should return if there is no catch clause, so that __cxa_rethrow can call - // std::terminate() - } - - // Call through to _Unwind_Resume() which distiguishes between forced and - // regular exceptions. - _Unwind_SjLj_Resume(exception_object); - _LIBUNWIND_ABORT("__Unwind_SjLj_Resume_or_Rethrow() called " - "_Unwind_SjLj_Resume() which unexpectedly returned"); -} - - -/// Called by personality handler during phase 2 to get LSDA for current frame. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) { - _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; - _LIBUNWIND_TRACE_API("_Unwind_GetLanguageSpecificData(context=%p) " + // If this is non-forced and a stopping place was found, then this is a + // re-throw. + // Call _Unwind_RaiseException() as if this was a new exception. + if (exception_object->private_1 == 0) { + return _Unwind_SjLj_RaiseException(exception_object); + // should return if there is no catch clause, so that __cxa_rethrow can call + // std::terminate() + } + + // Call through to _Unwind_Resume() which distiguishes between forced and + // regular exceptions. + _Unwind_SjLj_Resume(exception_object); + _LIBUNWIND_ABORT("__Unwind_SjLj_Resume_or_Rethrow() called " + "_Unwind_SjLj_Resume() which unexpectedly returned"); +} + + +/// Called by personality handler during phase 2 to get LSDA for current frame. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) { + _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; + _LIBUNWIND_TRACE_API("_Unwind_GetLanguageSpecificData(context=%p) " "=> 0x%" PRIuPTR, (void *)context, ufc->lsda); - return ufc->lsda; -} - - -/// Called by personality handler during phase 2 to get register values. -_LIBUNWIND_EXPORT uintptr_t _Unwind_GetGR(struct _Unwind_Context *context, - int index) { + return ufc->lsda; +} + + +/// Called by personality handler during phase 2 to get register values. +_LIBUNWIND_EXPORT uintptr_t _Unwind_GetGR(struct _Unwind_Context *context, + int index) { _LIBUNWIND_TRACE_API("_Unwind_GetGR(context=%p, reg=%d)", (void *)context, index); - _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; - return ufc->resumeParameters[index]; -} - - -/// Called by personality handler during phase 2 to alter register values. -_LIBUNWIND_EXPORT void _Unwind_SetGR(struct _Unwind_Context *context, int index, - uintptr_t new_value) { + _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; + return ufc->resumeParameters[index]; +} + + +/// Called by personality handler during phase 2 to alter register values. +_LIBUNWIND_EXPORT void _Unwind_SetGR(struct _Unwind_Context *context, int index, + uintptr_t new_value) { _LIBUNWIND_TRACE_API("_Unwind_SetGR(context=%p, reg=%d, value=0x%" PRIuPTR ")", (void *)context, index, new_value); - _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; - ufc->resumeParameters[index] = new_value; -} - - -/// Called by personality handler during phase 2 to get instruction pointer. -_LIBUNWIND_EXPORT uintptr_t _Unwind_GetIP(struct _Unwind_Context *context) { - _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; + _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; + ufc->resumeParameters[index] = new_value; +} + + +/// Called by personality handler during phase 2 to get instruction pointer. +_LIBUNWIND_EXPORT uintptr_t _Unwind_GetIP(struct _Unwind_Context *context) { + _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; _LIBUNWIND_TRACE_API("_Unwind_GetIP(context=%p) => 0x%" PRIu32, (void *)context, ufc->resumeLocation + 1); - return ufc->resumeLocation + 1; -} - - -/// Called by personality handler during phase 2 to get instruction pointer. -/// ipBefore is a boolean that says if IP is already adjusted to be the call -/// site address. Normally IP is the return address. -_LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context, - int *ipBefore) { - _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; - *ipBefore = 0; + return ufc->resumeLocation + 1; +} + + +/// Called by personality handler during phase 2 to get instruction pointer. +/// ipBefore is a boolean that says if IP is already adjusted to be the call +/// site address. Normally IP is the return address. +_LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context, + int *ipBefore) { + _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; + *ipBefore = 0; _LIBUNWIND_TRACE_API("_Unwind_GetIPInfo(context=%p, %p) => 0x%" PRIu32, (void *)context, (void *)ipBefore, ufc->resumeLocation + 1); - return ufc->resumeLocation + 1; -} - - -/// Called by personality handler during phase 2 to alter instruction pointer. -_LIBUNWIND_EXPORT void _Unwind_SetIP(struct _Unwind_Context *context, - uintptr_t new_value) { + return ufc->resumeLocation + 1; +} + + +/// Called by personality handler during phase 2 to alter instruction pointer. +_LIBUNWIND_EXPORT void _Unwind_SetIP(struct _Unwind_Context *context, + uintptr_t new_value) { _LIBUNWIND_TRACE_API("_Unwind_SetIP(context=%p, value=0x%" PRIuPTR ")", (void *)context, new_value); - _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; - ufc->resumeLocation = new_value - 1; -} - - -/// Called by personality handler during phase 2 to find the start of the -/// function. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetRegionStart(struct _Unwind_Context *context) { - // Not supported or needed for sjlj based unwinding - (void)context; + _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; + ufc->resumeLocation = new_value - 1; +} + + +/// Called by personality handler during phase 2 to find the start of the +/// function. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetRegionStart(struct _Unwind_Context *context) { + // Not supported or needed for sjlj based unwinding + (void)context; _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p)", (void *)context); - return 0; -} - - -/// Called by personality handler during phase 2 if a foreign exception -/// is caught. -_LIBUNWIND_EXPORT void -_Unwind_DeleteException(struct _Unwind_Exception *exception_object) { + return 0; +} + + +/// Called by personality handler during phase 2 if a foreign exception +/// is caught. +_LIBUNWIND_EXPORT void +_Unwind_DeleteException(struct _Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)", (void *)exception_object); - if (exception_object->exception_cleanup != NULL) - (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT, - exception_object); -} - - - -/// Called by personality handler during phase 2 to get base address for data -/// relative encodings. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetDataRelBase(struct _Unwind_Context *context) { - // Not supported or needed for sjlj based unwinding - (void)context; + if (exception_object->exception_cleanup != NULL) + (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT, + exception_object); +} + + + +/// Called by personality handler during phase 2 to get base address for data +/// relative encodings. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetDataRelBase(struct _Unwind_Context *context) { + // Not supported or needed for sjlj based unwinding + (void)context; _LIBUNWIND_TRACE_API("_Unwind_GetDataRelBase(context=%p)", (void *)context); - _LIBUNWIND_ABORT("_Unwind_GetDataRelBase() not implemented"); -} - - -/// Called by personality handler during phase 2 to get base address for text -/// relative encodings. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetTextRelBase(struct _Unwind_Context *context) { - // Not supported or needed for sjlj based unwinding - (void)context; + _LIBUNWIND_ABORT("_Unwind_GetDataRelBase() not implemented"); +} + + +/// Called by personality handler during phase 2 to get base address for text +/// relative encodings. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetTextRelBase(struct _Unwind_Context *context) { + // Not supported or needed for sjlj based unwinding + (void)context; _LIBUNWIND_TRACE_API("_Unwind_GetTextRelBase(context=%p)", (void *)context); - _LIBUNWIND_ABORT("_Unwind_GetTextRelBase() not implemented"); -} - - -/// Called by personality handler to get "Call Frame Area" for current frame. -_LIBUNWIND_EXPORT uintptr_t _Unwind_GetCFA(struct _Unwind_Context *context) { + _LIBUNWIND_ABORT("_Unwind_GetTextRelBase() not implemented"); +} + + +/// Called by personality handler to get "Call Frame Area" for current frame. +_LIBUNWIND_EXPORT uintptr_t _Unwind_GetCFA(struct _Unwind_Context *context) { _LIBUNWIND_TRACE_API("_Unwind_GetCFA(context=%p)", (void *)context); - if (context != NULL) { - _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; - // Setjmp/longjmp based exceptions don't have a true CFA. - // Instead, the SP in the jmpbuf is the closest approximation. - return (uintptr_t) ufc->jbuf[2]; - } - return 0; -} - + if (context != NULL) { + _Unwind_FunctionContext_t ufc = (_Unwind_FunctionContext_t) context; + // Setjmp/longjmp based exceptions don't have a true CFA. + // Instead, the SP in the jmpbuf is the closest approximation. + return (uintptr_t) ufc->jbuf[2]; + } + return 0; +} + #endif // defined(_LIBUNWIND_BUILD_SJLJ_APIS) diff --git a/contrib/libs/libunwind/src/UnwindCursor.hpp b/contrib/libs/libunwind/src/UnwindCursor.hpp index d751111dd2..1ca842f33a 100644 --- a/contrib/libs/libunwind/src/UnwindCursor.hpp +++ b/contrib/libs/libunwind/src/UnwindCursor.hpp @@ -1,30 +1,30 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// +// +// // C++ interface to lower levels of libunwind -//===----------------------------------------------------------------------===// - -#ifndef __UNWINDCURSOR_HPP__ -#define __UNWINDCURSOR_HPP__ - +//===----------------------------------------------------------------------===// + +#ifndef __UNWINDCURSOR_HPP__ +#define __UNWINDCURSOR_HPP__ + #include "cet_unwind.h" -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <unwind.h> - +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <unwind.h> + #ifdef _WIN32 #include <windows.h> #include <ntverp.h> #endif -#ifdef __APPLE__ - #include <mach-o/dyld.h> -#endif - +#ifdef __APPLE__ + #include <mach-o/dyld.h> +#endif + #if defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) // Provide a definition for the DISPATCHER_CONTEXT struct for old (Win7 and // earlier) SDKs. @@ -62,402 +62,402 @@ extern "C" _Unwind_Reason_Code __libunwind_seh_personality( #endif -#include "config.h" - -#include "AddressSpace.hpp" -#include "CompactUnwinder.hpp" -#include "config.h" -#include "DwarfInstructions.hpp" -#include "EHHeaderParser.hpp" -#include "libunwind.h" -#include "Registers.hpp" +#include "config.h" + +#include "AddressSpace.hpp" +#include "CompactUnwinder.hpp" +#include "config.h" +#include "DwarfInstructions.hpp" +#include "EHHeaderParser.hpp" +#include "libunwind.h" +#include "Registers.hpp" #include "RWMutex.hpp" -#include "Unwind-EHABI.h" - -namespace libunwind { - +#include "Unwind-EHABI.h" + +namespace libunwind { + #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) -/// Cache of recently found FDEs. -template <typename A> -class _LIBUNWIND_HIDDEN DwarfFDECache { - typedef typename A::pint_t pint_t; -public: +/// Cache of recently found FDEs. +template <typename A> +class _LIBUNWIND_HIDDEN DwarfFDECache { + typedef typename A::pint_t pint_t; +public: static constexpr pint_t kSearchAll = static_cast<pint_t>(-1); - static pint_t findFDE(pint_t mh, pint_t pc); - static void add(pint_t mh, pint_t ip_start, pint_t ip_end, pint_t fde); - static void removeAllIn(pint_t mh); - static void iterateCacheEntries(void (*func)(unw_word_t ip_start, - unw_word_t ip_end, - unw_word_t fde, unw_word_t mh)); - -private: - - struct entry { - pint_t mh; - pint_t ip_start; - pint_t ip_end; - pint_t fde; - }; - - // These fields are all static to avoid needing an initializer. - // There is only one instance of this class per process. + static pint_t findFDE(pint_t mh, pint_t pc); + static void add(pint_t mh, pint_t ip_start, pint_t ip_end, pint_t fde); + static void removeAllIn(pint_t mh); + static void iterateCacheEntries(void (*func)(unw_word_t ip_start, + unw_word_t ip_end, + unw_word_t fde, unw_word_t mh)); + +private: + + struct entry { + pint_t mh; + pint_t ip_start; + pint_t ip_end; + pint_t fde; + }; + + // These fields are all static to avoid needing an initializer. + // There is only one instance of this class per process. static RWMutex _lock; -#ifdef __APPLE__ - static void dyldUnloadHook(const struct mach_header *mh, intptr_t slide); - static bool _registeredForDyldUnloads; -#endif - static entry *_buffer; - static entry *_bufferUsed; - static entry *_bufferEnd; - static entry _initialBuffer[64]; -}; - -template <typename A> -typename DwarfFDECache<A>::entry * -DwarfFDECache<A>::_buffer = _initialBuffer; - -template <typename A> -typename DwarfFDECache<A>::entry * -DwarfFDECache<A>::_bufferUsed = _initialBuffer; - -template <typename A> -typename DwarfFDECache<A>::entry * -DwarfFDECache<A>::_bufferEnd = &_initialBuffer[64]; - -template <typename A> -typename DwarfFDECache<A>::entry DwarfFDECache<A>::_initialBuffer[64]; - -template <typename A> +#ifdef __APPLE__ + static void dyldUnloadHook(const struct mach_header *mh, intptr_t slide); + static bool _registeredForDyldUnloads; +#endif + static entry *_buffer; + static entry *_bufferUsed; + static entry *_bufferEnd; + static entry _initialBuffer[64]; +}; + +template <typename A> +typename DwarfFDECache<A>::entry * +DwarfFDECache<A>::_buffer = _initialBuffer; + +template <typename A> +typename DwarfFDECache<A>::entry * +DwarfFDECache<A>::_bufferUsed = _initialBuffer; + +template <typename A> +typename DwarfFDECache<A>::entry * +DwarfFDECache<A>::_bufferEnd = &_initialBuffer[64]; + +template <typename A> +typename DwarfFDECache<A>::entry DwarfFDECache<A>::_initialBuffer[64]; + +template <typename A> RWMutex DwarfFDECache<A>::_lock; - -#ifdef __APPLE__ -template <typename A> -bool DwarfFDECache<A>::_registeredForDyldUnloads = false; -#endif - -template <typename A> -typename A::pint_t DwarfFDECache<A>::findFDE(pint_t mh, pint_t pc) { - pint_t result = 0; + +#ifdef __APPLE__ +template <typename A> +bool DwarfFDECache<A>::_registeredForDyldUnloads = false; +#endif + +template <typename A> +typename A::pint_t DwarfFDECache<A>::findFDE(pint_t mh, pint_t pc) { + pint_t result = 0; _LIBUNWIND_LOG_IF_FALSE(_lock.lock_shared()); - for (entry *p = _buffer; p < _bufferUsed; ++p) { + for (entry *p = _buffer; p < _bufferUsed; ++p) { if ((mh == p->mh) || (mh == kSearchAll)) { - if ((p->ip_start <= pc) && (pc < p->ip_end)) { - result = p->fde; - break; - } - } - } + if ((p->ip_start <= pc) && (pc < p->ip_end)) { + result = p->fde; + break; + } + } + } _LIBUNWIND_LOG_IF_FALSE(_lock.unlock_shared()); - return result; -} - -template <typename A> -void DwarfFDECache<A>::add(pint_t mh, pint_t ip_start, pint_t ip_end, - pint_t fde) { -#if !defined(_LIBUNWIND_NO_HEAP) + return result; +} + +template <typename A> +void DwarfFDECache<A>::add(pint_t mh, pint_t ip_start, pint_t ip_end, + pint_t fde) { +#if !defined(_LIBUNWIND_NO_HEAP) _LIBUNWIND_LOG_IF_FALSE(_lock.lock()); - if (_bufferUsed >= _bufferEnd) { - size_t oldSize = (size_t)(_bufferEnd - _buffer); - size_t newSize = oldSize * 4; - // Can't use operator new (we are below it). - entry *newBuffer = (entry *)malloc(newSize * sizeof(entry)); - memcpy(newBuffer, _buffer, oldSize * sizeof(entry)); - if (_buffer != _initialBuffer) - free(_buffer); - _buffer = newBuffer; - _bufferUsed = &newBuffer[oldSize]; - _bufferEnd = &newBuffer[newSize]; - } - _bufferUsed->mh = mh; - _bufferUsed->ip_start = ip_start; - _bufferUsed->ip_end = ip_end; - _bufferUsed->fde = fde; - ++_bufferUsed; -#ifdef __APPLE__ - if (!_registeredForDyldUnloads) { - _dyld_register_func_for_remove_image(&dyldUnloadHook); - _registeredForDyldUnloads = true; - } -#endif + if (_bufferUsed >= _bufferEnd) { + size_t oldSize = (size_t)(_bufferEnd - _buffer); + size_t newSize = oldSize * 4; + // Can't use operator new (we are below it). + entry *newBuffer = (entry *)malloc(newSize * sizeof(entry)); + memcpy(newBuffer, _buffer, oldSize * sizeof(entry)); + if (_buffer != _initialBuffer) + free(_buffer); + _buffer = newBuffer; + _bufferUsed = &newBuffer[oldSize]; + _bufferEnd = &newBuffer[newSize]; + } + _bufferUsed->mh = mh; + _bufferUsed->ip_start = ip_start; + _bufferUsed->ip_end = ip_end; + _bufferUsed->fde = fde; + ++_bufferUsed; +#ifdef __APPLE__ + if (!_registeredForDyldUnloads) { + _dyld_register_func_for_remove_image(&dyldUnloadHook); + _registeredForDyldUnloads = true; + } +#endif _LIBUNWIND_LOG_IF_FALSE(_lock.unlock()); -#endif -} - -template <typename A> -void DwarfFDECache<A>::removeAllIn(pint_t mh) { +#endif +} + +template <typename A> +void DwarfFDECache<A>::removeAllIn(pint_t mh) { _LIBUNWIND_LOG_IF_FALSE(_lock.lock()); - entry *d = _buffer; - for (const entry *s = _buffer; s < _bufferUsed; ++s) { - if (s->mh != mh) { - if (d != s) - *d = *s; - ++d; - } - } - _bufferUsed = d; + entry *d = _buffer; + for (const entry *s = _buffer; s < _bufferUsed; ++s) { + if (s->mh != mh) { + if (d != s) + *d = *s; + ++d; + } + } + _bufferUsed = d; _LIBUNWIND_LOG_IF_FALSE(_lock.unlock()); -} - -#ifdef __APPLE__ -template <typename A> -void DwarfFDECache<A>::dyldUnloadHook(const struct mach_header *mh, intptr_t ) { - removeAllIn((pint_t) mh); -} -#endif - -template <typename A> -void DwarfFDECache<A>::iterateCacheEntries(void (*func)( - unw_word_t ip_start, unw_word_t ip_end, unw_word_t fde, unw_word_t mh)) { +} + +#ifdef __APPLE__ +template <typename A> +void DwarfFDECache<A>::dyldUnloadHook(const struct mach_header *mh, intptr_t ) { + removeAllIn((pint_t) mh); +} +#endif + +template <typename A> +void DwarfFDECache<A>::iterateCacheEntries(void (*func)( + unw_word_t ip_start, unw_word_t ip_end, unw_word_t fde, unw_word_t mh)) { _LIBUNWIND_LOG_IF_FALSE(_lock.lock()); - for (entry *p = _buffer; p < _bufferUsed; ++p) { - (*func)(p->ip_start, p->ip_end, p->fde, p->mh); - } + for (entry *p = _buffer; p < _bufferUsed; ++p) { + (*func)(p->ip_start, p->ip_end, p->fde, p->mh); + } _LIBUNWIND_LOG_IF_FALSE(_lock.unlock()); -} +} #endif // defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - - -#define arrayoffsetof(type, index, field) ((size_t)(&((type *)0)[index].field)) - + + +#define arrayoffsetof(type, index, field) ((size_t)(&((type *)0)[index].field)) + #if defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) -template <typename A> class UnwindSectionHeader { -public: - UnwindSectionHeader(A &addressSpace, typename A::pint_t addr) - : _addressSpace(addressSpace), _addr(addr) {} - - uint32_t version() const { - return _addressSpace.get32(_addr + - offsetof(unwind_info_section_header, version)); - } - uint32_t commonEncodingsArraySectionOffset() const { - return _addressSpace.get32(_addr + - offsetof(unwind_info_section_header, - commonEncodingsArraySectionOffset)); - } - uint32_t commonEncodingsArrayCount() const { - return _addressSpace.get32(_addr + offsetof(unwind_info_section_header, - commonEncodingsArrayCount)); - } - uint32_t personalityArraySectionOffset() const { - return _addressSpace.get32(_addr + offsetof(unwind_info_section_header, - personalityArraySectionOffset)); - } - uint32_t personalityArrayCount() const { - return _addressSpace.get32( - _addr + offsetof(unwind_info_section_header, personalityArrayCount)); - } - uint32_t indexSectionOffset() const { - return _addressSpace.get32( - _addr + offsetof(unwind_info_section_header, indexSectionOffset)); - } - uint32_t indexCount() const { - return _addressSpace.get32( - _addr + offsetof(unwind_info_section_header, indexCount)); - } - -private: - A &_addressSpace; - typename A::pint_t _addr; -}; - -template <typename A> class UnwindSectionIndexArray { -public: - UnwindSectionIndexArray(A &addressSpace, typename A::pint_t addr) - : _addressSpace(addressSpace), _addr(addr) {} - - uint32_t functionOffset(uint32_t index) const { - return _addressSpace.get32( - _addr + arrayoffsetof(unwind_info_section_header_index_entry, index, - functionOffset)); - } - uint32_t secondLevelPagesSectionOffset(uint32_t index) const { - return _addressSpace.get32( - _addr + arrayoffsetof(unwind_info_section_header_index_entry, index, - secondLevelPagesSectionOffset)); - } - uint32_t lsdaIndexArraySectionOffset(uint32_t index) const { - return _addressSpace.get32( - _addr + arrayoffsetof(unwind_info_section_header_index_entry, index, - lsdaIndexArraySectionOffset)); - } - -private: - A &_addressSpace; - typename A::pint_t _addr; -}; - -template <typename A> class UnwindSectionRegularPageHeader { -public: - UnwindSectionRegularPageHeader(A &addressSpace, typename A::pint_t addr) - : _addressSpace(addressSpace), _addr(addr) {} - - uint32_t kind() const { - return _addressSpace.get32( - _addr + offsetof(unwind_info_regular_second_level_page_header, kind)); - } - uint16_t entryPageOffset() const { - return _addressSpace.get16( - _addr + offsetof(unwind_info_regular_second_level_page_header, - entryPageOffset)); - } - uint16_t entryCount() const { - return _addressSpace.get16( - _addr + - offsetof(unwind_info_regular_second_level_page_header, entryCount)); - } - -private: - A &_addressSpace; - typename A::pint_t _addr; -}; - -template <typename A> class UnwindSectionRegularArray { -public: - UnwindSectionRegularArray(A &addressSpace, typename A::pint_t addr) - : _addressSpace(addressSpace), _addr(addr) {} - - uint32_t functionOffset(uint32_t index) const { - return _addressSpace.get32( - _addr + arrayoffsetof(unwind_info_regular_second_level_entry, index, - functionOffset)); - } - uint32_t encoding(uint32_t index) const { - return _addressSpace.get32( - _addr + - arrayoffsetof(unwind_info_regular_second_level_entry, index, encoding)); - } - -private: - A &_addressSpace; - typename A::pint_t _addr; -}; - -template <typename A> class UnwindSectionCompressedPageHeader { -public: - UnwindSectionCompressedPageHeader(A &addressSpace, typename A::pint_t addr) - : _addressSpace(addressSpace), _addr(addr) {} - - uint32_t kind() const { - return _addressSpace.get32( - _addr + - offsetof(unwind_info_compressed_second_level_page_header, kind)); - } - uint16_t entryPageOffset() const { - return _addressSpace.get16( - _addr + offsetof(unwind_info_compressed_second_level_page_header, - entryPageOffset)); - } - uint16_t entryCount() const { - return _addressSpace.get16( - _addr + - offsetof(unwind_info_compressed_second_level_page_header, entryCount)); - } - uint16_t encodingsPageOffset() const { - return _addressSpace.get16( - _addr + offsetof(unwind_info_compressed_second_level_page_header, - encodingsPageOffset)); - } - uint16_t encodingsCount() const { - return _addressSpace.get16( - _addr + offsetof(unwind_info_compressed_second_level_page_header, - encodingsCount)); - } - -private: - A &_addressSpace; - typename A::pint_t _addr; -}; - -template <typename A> class UnwindSectionCompressedArray { -public: - UnwindSectionCompressedArray(A &addressSpace, typename A::pint_t addr) - : _addressSpace(addressSpace), _addr(addr) {} - - uint32_t functionOffset(uint32_t index) const { - return UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET( - _addressSpace.get32(_addr + index * sizeof(uint32_t))); - } - uint16_t encodingIndex(uint32_t index) const { - return UNWIND_INFO_COMPRESSED_ENTRY_ENCODING_INDEX( - _addressSpace.get32(_addr + index * sizeof(uint32_t))); - } - -private: - A &_addressSpace; - typename A::pint_t _addr; -}; - -template <typename A> class UnwindSectionLsdaArray { -public: - UnwindSectionLsdaArray(A &addressSpace, typename A::pint_t addr) - : _addressSpace(addressSpace), _addr(addr) {} - - uint32_t functionOffset(uint32_t index) const { - return _addressSpace.get32( - _addr + arrayoffsetof(unwind_info_section_header_lsda_index_entry, - index, functionOffset)); - } - uint32_t lsdaOffset(uint32_t index) const { - return _addressSpace.get32( - _addr + arrayoffsetof(unwind_info_section_header_lsda_index_entry, - index, lsdaOffset)); - } - -private: - A &_addressSpace; - typename A::pint_t _addr; -}; +template <typename A> class UnwindSectionHeader { +public: + UnwindSectionHeader(A &addressSpace, typename A::pint_t addr) + : _addressSpace(addressSpace), _addr(addr) {} + + uint32_t version() const { + return _addressSpace.get32(_addr + + offsetof(unwind_info_section_header, version)); + } + uint32_t commonEncodingsArraySectionOffset() const { + return _addressSpace.get32(_addr + + offsetof(unwind_info_section_header, + commonEncodingsArraySectionOffset)); + } + uint32_t commonEncodingsArrayCount() const { + return _addressSpace.get32(_addr + offsetof(unwind_info_section_header, + commonEncodingsArrayCount)); + } + uint32_t personalityArraySectionOffset() const { + return _addressSpace.get32(_addr + offsetof(unwind_info_section_header, + personalityArraySectionOffset)); + } + uint32_t personalityArrayCount() const { + return _addressSpace.get32( + _addr + offsetof(unwind_info_section_header, personalityArrayCount)); + } + uint32_t indexSectionOffset() const { + return _addressSpace.get32( + _addr + offsetof(unwind_info_section_header, indexSectionOffset)); + } + uint32_t indexCount() const { + return _addressSpace.get32( + _addr + offsetof(unwind_info_section_header, indexCount)); + } + +private: + A &_addressSpace; + typename A::pint_t _addr; +}; + +template <typename A> class UnwindSectionIndexArray { +public: + UnwindSectionIndexArray(A &addressSpace, typename A::pint_t addr) + : _addressSpace(addressSpace), _addr(addr) {} + + uint32_t functionOffset(uint32_t index) const { + return _addressSpace.get32( + _addr + arrayoffsetof(unwind_info_section_header_index_entry, index, + functionOffset)); + } + uint32_t secondLevelPagesSectionOffset(uint32_t index) const { + return _addressSpace.get32( + _addr + arrayoffsetof(unwind_info_section_header_index_entry, index, + secondLevelPagesSectionOffset)); + } + uint32_t lsdaIndexArraySectionOffset(uint32_t index) const { + return _addressSpace.get32( + _addr + arrayoffsetof(unwind_info_section_header_index_entry, index, + lsdaIndexArraySectionOffset)); + } + +private: + A &_addressSpace; + typename A::pint_t _addr; +}; + +template <typename A> class UnwindSectionRegularPageHeader { +public: + UnwindSectionRegularPageHeader(A &addressSpace, typename A::pint_t addr) + : _addressSpace(addressSpace), _addr(addr) {} + + uint32_t kind() const { + return _addressSpace.get32( + _addr + offsetof(unwind_info_regular_second_level_page_header, kind)); + } + uint16_t entryPageOffset() const { + return _addressSpace.get16( + _addr + offsetof(unwind_info_regular_second_level_page_header, + entryPageOffset)); + } + uint16_t entryCount() const { + return _addressSpace.get16( + _addr + + offsetof(unwind_info_regular_second_level_page_header, entryCount)); + } + +private: + A &_addressSpace; + typename A::pint_t _addr; +}; + +template <typename A> class UnwindSectionRegularArray { +public: + UnwindSectionRegularArray(A &addressSpace, typename A::pint_t addr) + : _addressSpace(addressSpace), _addr(addr) {} + + uint32_t functionOffset(uint32_t index) const { + return _addressSpace.get32( + _addr + arrayoffsetof(unwind_info_regular_second_level_entry, index, + functionOffset)); + } + uint32_t encoding(uint32_t index) const { + return _addressSpace.get32( + _addr + + arrayoffsetof(unwind_info_regular_second_level_entry, index, encoding)); + } + +private: + A &_addressSpace; + typename A::pint_t _addr; +}; + +template <typename A> class UnwindSectionCompressedPageHeader { +public: + UnwindSectionCompressedPageHeader(A &addressSpace, typename A::pint_t addr) + : _addressSpace(addressSpace), _addr(addr) {} + + uint32_t kind() const { + return _addressSpace.get32( + _addr + + offsetof(unwind_info_compressed_second_level_page_header, kind)); + } + uint16_t entryPageOffset() const { + return _addressSpace.get16( + _addr + offsetof(unwind_info_compressed_second_level_page_header, + entryPageOffset)); + } + uint16_t entryCount() const { + return _addressSpace.get16( + _addr + + offsetof(unwind_info_compressed_second_level_page_header, entryCount)); + } + uint16_t encodingsPageOffset() const { + return _addressSpace.get16( + _addr + offsetof(unwind_info_compressed_second_level_page_header, + encodingsPageOffset)); + } + uint16_t encodingsCount() const { + return _addressSpace.get16( + _addr + offsetof(unwind_info_compressed_second_level_page_header, + encodingsCount)); + } + +private: + A &_addressSpace; + typename A::pint_t _addr; +}; + +template <typename A> class UnwindSectionCompressedArray { +public: + UnwindSectionCompressedArray(A &addressSpace, typename A::pint_t addr) + : _addressSpace(addressSpace), _addr(addr) {} + + uint32_t functionOffset(uint32_t index) const { + return UNWIND_INFO_COMPRESSED_ENTRY_FUNC_OFFSET( + _addressSpace.get32(_addr + index * sizeof(uint32_t))); + } + uint16_t encodingIndex(uint32_t index) const { + return UNWIND_INFO_COMPRESSED_ENTRY_ENCODING_INDEX( + _addressSpace.get32(_addr + index * sizeof(uint32_t))); + } + +private: + A &_addressSpace; + typename A::pint_t _addr; +}; + +template <typename A> class UnwindSectionLsdaArray { +public: + UnwindSectionLsdaArray(A &addressSpace, typename A::pint_t addr) + : _addressSpace(addressSpace), _addr(addr) {} + + uint32_t functionOffset(uint32_t index) const { + return _addressSpace.get32( + _addr + arrayoffsetof(unwind_info_section_header_lsda_index_entry, + index, functionOffset)); + } + uint32_t lsdaOffset(uint32_t index) const { + return _addressSpace.get32( + _addr + arrayoffsetof(unwind_info_section_header_lsda_index_entry, + index, lsdaOffset)); + } + +private: + A &_addressSpace; + typename A::pint_t _addr; +}; #endif // defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) - -class _LIBUNWIND_HIDDEN AbstractUnwindCursor { -public: - // NOTE: provide a class specific placement deallocation function (S5.3.4 p20) - // This avoids an unnecessary dependency to libc++abi. - void operator delete(void *, size_t) {} - - virtual ~AbstractUnwindCursor() {} - virtual bool validReg(int) { _LIBUNWIND_ABORT("validReg not implemented"); } - virtual unw_word_t getReg(int) { _LIBUNWIND_ABORT("getReg not implemented"); } - virtual void setReg(int, unw_word_t) { - _LIBUNWIND_ABORT("setReg not implemented"); - } - virtual bool validFloatReg(int) { - _LIBUNWIND_ABORT("validFloatReg not implemented"); - } - virtual unw_fpreg_t getFloatReg(int) { - _LIBUNWIND_ABORT("getFloatReg not implemented"); - } - virtual void setFloatReg(int, unw_fpreg_t) { - _LIBUNWIND_ABORT("setFloatReg not implemented"); - } - virtual int step() { _LIBUNWIND_ABORT("step not implemented"); } - virtual void getInfo(unw_proc_info_t *) { - _LIBUNWIND_ABORT("getInfo not implemented"); - } - virtual void jumpto() { _LIBUNWIND_ABORT("jumpto not implemented"); } - virtual bool isSignalFrame() { - _LIBUNWIND_ABORT("isSignalFrame not implemented"); - } - virtual bool getFunctionName(char *, size_t, unw_word_t *) { - _LIBUNWIND_ABORT("getFunctionName not implemented"); - } - virtual void setInfoBasedOnIPRegister(bool = false) { - _LIBUNWIND_ABORT("setInfoBasedOnIPRegister not implemented"); - } - virtual const char *getRegisterName(int) { - _LIBUNWIND_ABORT("getRegisterName not implemented"); - } -#ifdef __arm__ - virtual void saveVFPAsX() { _LIBUNWIND_ABORT("saveVFPAsX not implemented"); } -#endif + +class _LIBUNWIND_HIDDEN AbstractUnwindCursor { +public: + // NOTE: provide a class specific placement deallocation function (S5.3.4 p20) + // This avoids an unnecessary dependency to libc++abi. + void operator delete(void *, size_t) {} + + virtual ~AbstractUnwindCursor() {} + virtual bool validReg(int) { _LIBUNWIND_ABORT("validReg not implemented"); } + virtual unw_word_t getReg(int) { _LIBUNWIND_ABORT("getReg not implemented"); } + virtual void setReg(int, unw_word_t) { + _LIBUNWIND_ABORT("setReg not implemented"); + } + virtual bool validFloatReg(int) { + _LIBUNWIND_ABORT("validFloatReg not implemented"); + } + virtual unw_fpreg_t getFloatReg(int) { + _LIBUNWIND_ABORT("getFloatReg not implemented"); + } + virtual void setFloatReg(int, unw_fpreg_t) { + _LIBUNWIND_ABORT("setFloatReg not implemented"); + } + virtual int step() { _LIBUNWIND_ABORT("step not implemented"); } + virtual void getInfo(unw_proc_info_t *) { + _LIBUNWIND_ABORT("getInfo not implemented"); + } + virtual void jumpto() { _LIBUNWIND_ABORT("jumpto not implemented"); } + virtual bool isSignalFrame() { + _LIBUNWIND_ABORT("isSignalFrame not implemented"); + } + virtual bool getFunctionName(char *, size_t, unw_word_t *) { + _LIBUNWIND_ABORT("getFunctionName not implemented"); + } + virtual void setInfoBasedOnIPRegister(bool = false) { + _LIBUNWIND_ABORT("setInfoBasedOnIPRegister not implemented"); + } + virtual const char *getRegisterName(int) { + _LIBUNWIND_ABORT("getRegisterName not implemented"); + } +#ifdef __arm__ + virtual void saveVFPAsX() { _LIBUNWIND_ABORT("saveVFPAsX not implemented"); } +#endif #if defined(_LIBUNWIND_USE_CET) virtual void *get_registers() { _LIBUNWIND_ABORT("get_registers not implemented"); } #endif -}; - +}; + #if defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) && defined(_WIN32) /// \c UnwindCursor contains all state (including all register values) during @@ -884,32 +884,32 @@ template <typename A, typename R> bool UnwindCursor<A, R>::isSignalFrame() { #else // !defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) || !defined(_WIN32) -/// UnwindCursor contains all state (including all register values) during -/// an unwind. This is normally stack allocated inside a unw_cursor_t. -template <typename A, typename R> -class UnwindCursor : public AbstractUnwindCursor{ - typedef typename A::pint_t pint_t; -public: - UnwindCursor(unw_context_t *context, A &as); - UnwindCursor(A &as, void *threadArg); - virtual ~UnwindCursor() {} - virtual bool validReg(int); - virtual unw_word_t getReg(int); - virtual void setReg(int, unw_word_t); - virtual bool validFloatReg(int); - virtual unw_fpreg_t getFloatReg(int); - virtual void setFloatReg(int, unw_fpreg_t); - virtual int step(); - virtual void getInfo(unw_proc_info_t *); - virtual void jumpto(); - virtual bool isSignalFrame(); - virtual bool getFunctionName(char *buf, size_t len, unw_word_t *off); - virtual void setInfoBasedOnIPRegister(bool isReturnAddress = false); - virtual const char *getRegisterName(int num); -#ifdef __arm__ - virtual void saveVFPAsX(); -#endif - +/// UnwindCursor contains all state (including all register values) during +/// an unwind. This is normally stack allocated inside a unw_cursor_t. +template <typename A, typename R> +class UnwindCursor : public AbstractUnwindCursor{ + typedef typename A::pint_t pint_t; +public: + UnwindCursor(unw_context_t *context, A &as); + UnwindCursor(A &as, void *threadArg); + virtual ~UnwindCursor() {} + virtual bool validReg(int); + virtual unw_word_t getReg(int); + virtual void setReg(int, unw_word_t); + virtual bool validFloatReg(int); + virtual unw_fpreg_t getFloatReg(int); + virtual void setFloatReg(int, unw_fpreg_t); + virtual int step(); + virtual void getInfo(unw_proc_info_t *); + virtual void jumpto(); + virtual bool isSignalFrame(); + virtual bool getFunctionName(char *buf, size_t len, unw_word_t *off); + virtual void setInfoBasedOnIPRegister(bool isReturnAddress = false); + virtual const char *getRegisterName(int num); +#ifdef __arm__ + virtual void saveVFPAsX(); +#endif + #if defined(_LIBUNWIND_USE_CET) virtual void *get_registers() { return &_registers; } #endif @@ -917,26 +917,26 @@ public: // need our own defition of inline placement new. static void *operator new(size_t, UnwindCursor<A, R> *p) { return p; } -private: - +private: + #if defined(_LIBUNWIND_ARM_EHABI) - bool getInfoFromEHABISection(pint_t pc, const UnwindInfoSections §s); - - int stepWithEHABI() { - size_t len = 0; - size_t off = 0; - // FIXME: Calling decode_eht_entry() here is violating the libunwind - // abstraction layer. - const uint32_t *ehtp = - decode_eht_entry(reinterpret_cast<const uint32_t *>(_info.unwind_info), - &off, &len); - if (_Unwind_VRS_Interpret((_Unwind_Context *)this, ehtp, off, len) != - _URC_CONTINUE_UNWIND) - return UNW_STEP_END; - return UNW_STEP_SUCCESS; - } -#endif - + bool getInfoFromEHABISection(pint_t pc, const UnwindInfoSections §s); + + int stepWithEHABI() { + size_t len = 0; + size_t off = 0; + // FIXME: Calling decode_eht_entry() here is violating the libunwind + // abstraction layer. + const uint32_t *ehtp = + decode_eht_entry(reinterpret_cast<const uint32_t *>(_info.unwind_info), + &off, &len); + if (_Unwind_VRS_Interpret((_Unwind_Context *)this, ehtp, off, len) != + _URC_CONTINUE_UNWIND) + return UNW_STEP_END; + return UNW_STEP_SUCCESS; + } +#endif + #if defined(_LIBUNWIND_TARGET_LINUX) && defined(_LIBUNWIND_TARGET_AARCH64) bool setInfoForSigReturn() { R dummy; @@ -960,48 +960,48 @@ private: bool getInfoFromFdeCie(const typename CFI_Parser<A>::FDE_Info &fdeInfo, const typename CFI_Parser<A>::CIE_Info &cieInfo, pint_t pc, uintptr_t dso_base); - bool getInfoFromDwarfSection(pint_t pc, const UnwindInfoSections §s, - uint32_t fdeSectionOffsetHint=0); - int stepWithDwarfFDE() { - return DwarfInstructions<A, R>::stepWithDwarf(_addressSpace, - (pint_t)this->getReg(UNW_REG_IP), - (pint_t)_info.unwind_info, + bool getInfoFromDwarfSection(pint_t pc, const UnwindInfoSections §s, + uint32_t fdeSectionOffsetHint=0); + int stepWithDwarfFDE() { + return DwarfInstructions<A, R>::stepWithDwarf(_addressSpace, + (pint_t)this->getReg(UNW_REG_IP), + (pint_t)_info.unwind_info, _registers, _isSignalFrame); - } -#endif - + } +#endif + #if defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) - bool getInfoFromCompactEncodingSection(pint_t pc, - const UnwindInfoSections §s); - int stepWithCompactEncoding() { + bool getInfoFromCompactEncodingSection(pint_t pc, + const UnwindInfoSections §s); + int stepWithCompactEncoding() { #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - if ( compactSaysUseDwarf() ) - return stepWithDwarfFDE(); - #endif - R dummy; - return stepWithCompactEncoding(dummy); - } - + if ( compactSaysUseDwarf() ) + return stepWithDwarfFDE(); + #endif + R dummy; + return stepWithCompactEncoding(dummy); + } + #if defined(_LIBUNWIND_TARGET_X86_64) - int stepWithCompactEncoding(Registers_x86_64 &) { - return CompactUnwinder_x86_64<A>::stepWithCompactEncoding( - _info.format, _info.start_ip, _addressSpace, _registers); - } + int stepWithCompactEncoding(Registers_x86_64 &) { + return CompactUnwinder_x86_64<A>::stepWithCompactEncoding( + _info.format, _info.start_ip, _addressSpace, _registers); + } #endif - + #if defined(_LIBUNWIND_TARGET_I386) - int stepWithCompactEncoding(Registers_x86 &) { - return CompactUnwinder_x86<A>::stepWithCompactEncoding( - _info.format, (uint32_t)_info.start_ip, _addressSpace, _registers); - } + int stepWithCompactEncoding(Registers_x86 &) { + return CompactUnwinder_x86<A>::stepWithCompactEncoding( + _info.format, (uint32_t)_info.start_ip, _addressSpace, _registers); + } #endif - + #if defined(_LIBUNWIND_TARGET_PPC) - int stepWithCompactEncoding(Registers_ppc &) { - return UNW_EINVAL; - } + int stepWithCompactEncoding(Registers_ppc &) { + return UNW_EINVAL; + } #endif - + #if defined(_LIBUNWIND_TARGET_PPC64) int stepWithCompactEncoding(Registers_ppc64 &) { return UNW_EINVAL; @@ -1010,12 +1010,12 @@ private: #if defined(_LIBUNWIND_TARGET_AARCH64) - int stepWithCompactEncoding(Registers_arm64 &) { - return CompactUnwinder_arm64<A>::stepWithCompactEncoding( - _info.format, _info.start_ip, _addressSpace, _registers); - } + int stepWithCompactEncoding(Registers_arm64 &) { + return CompactUnwinder_arm64<A>::stepWithCompactEncoding( + _info.format, _info.start_ip, _addressSpace, _registers); + } #endif - + #if defined(_LIBUNWIND_TARGET_MIPS_O32) int stepWithCompactEncoding(Registers_mips_o32 &) { return UNW_EINVAL; @@ -1042,39 +1042,39 @@ private: } #endif - bool compactSaysUseDwarf(uint32_t *offset=NULL) const { - R dummy; - return compactSaysUseDwarf(dummy, offset); - } - + bool compactSaysUseDwarf(uint32_t *offset=NULL) const { + R dummy; + return compactSaysUseDwarf(dummy, offset); + } + #if defined(_LIBUNWIND_TARGET_X86_64) - bool compactSaysUseDwarf(Registers_x86_64 &, uint32_t *offset) const { - if ((_info.format & UNWIND_X86_64_MODE_MASK) == UNWIND_X86_64_MODE_DWARF) { - if (offset) - *offset = (_info.format & UNWIND_X86_64_DWARF_SECTION_OFFSET); - return true; - } - return false; - } -#endif - + bool compactSaysUseDwarf(Registers_x86_64 &, uint32_t *offset) const { + if ((_info.format & UNWIND_X86_64_MODE_MASK) == UNWIND_X86_64_MODE_DWARF) { + if (offset) + *offset = (_info.format & UNWIND_X86_64_DWARF_SECTION_OFFSET); + return true; + } + return false; + } +#endif + #if defined(_LIBUNWIND_TARGET_I386) - bool compactSaysUseDwarf(Registers_x86 &, uint32_t *offset) const { - if ((_info.format & UNWIND_X86_MODE_MASK) == UNWIND_X86_MODE_DWARF) { - if (offset) - *offset = (_info.format & UNWIND_X86_DWARF_SECTION_OFFSET); - return true; - } - return false; - } -#endif - + bool compactSaysUseDwarf(Registers_x86 &, uint32_t *offset) const { + if ((_info.format & UNWIND_X86_MODE_MASK) == UNWIND_X86_MODE_DWARF) { + if (offset) + *offset = (_info.format & UNWIND_X86_DWARF_SECTION_OFFSET); + return true; + } + return false; + } +#endif + #if defined(_LIBUNWIND_TARGET_PPC) - bool compactSaysUseDwarf(Registers_ppc &, uint32_t *) const { - return true; - } + bool compactSaysUseDwarf(Registers_ppc &, uint32_t *) const { + return true; + } #endif - + #if defined(_LIBUNWIND_TARGET_PPC64) bool compactSaysUseDwarf(Registers_ppc64 &, uint32_t *) const { return true; @@ -1082,16 +1082,16 @@ private: #endif #if defined(_LIBUNWIND_TARGET_AARCH64) - bool compactSaysUseDwarf(Registers_arm64 &, uint32_t *offset) const { - if ((_info.format & UNWIND_ARM64_MODE_MASK) == UNWIND_ARM64_MODE_DWARF) { - if (offset) - *offset = (_info.format & UNWIND_ARM64_DWARF_SECTION_OFFSET); - return true; - } - return false; - } -#endif - + bool compactSaysUseDwarf(Registers_arm64 &, uint32_t *offset) const { + if ((_info.format & UNWIND_ARM64_MODE_MASK) == UNWIND_ARM64_MODE_DWARF) { + if (offset) + *offset = (_info.format & UNWIND_ARM64_DWARF_SECTION_OFFSET); + return true; + } + return false; + } +#endif + #if defined(_LIBUNWIND_TARGET_MIPS_O32) bool compactSaysUseDwarf(Registers_mips_o32 &, uint32_t *) const { return true; @@ -1123,29 +1123,29 @@ private: #endif // defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - compact_unwind_encoding_t dwarfEncoding() const { - R dummy; - return dwarfEncoding(dummy); - } - + compact_unwind_encoding_t dwarfEncoding() const { + R dummy; + return dwarfEncoding(dummy); + } + #if defined(_LIBUNWIND_TARGET_X86_64) - compact_unwind_encoding_t dwarfEncoding(Registers_x86_64 &) const { - return UNWIND_X86_64_MODE_DWARF; - } + compact_unwind_encoding_t dwarfEncoding(Registers_x86_64 &) const { + return UNWIND_X86_64_MODE_DWARF; + } #endif - + #if defined(_LIBUNWIND_TARGET_I386) - compact_unwind_encoding_t dwarfEncoding(Registers_x86 &) const { - return UNWIND_X86_MODE_DWARF; - } + compact_unwind_encoding_t dwarfEncoding(Registers_x86 &) const { + return UNWIND_X86_MODE_DWARF; + } #endif - + #if defined(_LIBUNWIND_TARGET_PPC) - compact_unwind_encoding_t dwarfEncoding(Registers_ppc &) const { - return 0; - } + compact_unwind_encoding_t dwarfEncoding(Registers_ppc &) const { + return 0; + } #endif - + #if defined(_LIBUNWIND_TARGET_PPC64) compact_unwind_encoding_t dwarfEncoding(Registers_ppc64 &) const { return 0; @@ -1153,11 +1153,11 @@ private: #endif #if defined(_LIBUNWIND_TARGET_AARCH64) - compact_unwind_encoding_t dwarfEncoding(Registers_arm64 &) const { - return UNWIND_ARM64_MODE_DWARF; - } + compact_unwind_encoding_t dwarfEncoding(Registers_arm64 &) const { + return UNWIND_ARM64_MODE_DWARF; + } #endif - + #if defined(_LIBUNWIND_TARGET_ARM) compact_unwind_encoding_t dwarfEncoding(Registers_arm &) const { return 0; @@ -1165,11 +1165,11 @@ private: #endif #if defined (_LIBUNWIND_TARGET_OR1K) - compact_unwind_encoding_t dwarfEncoding(Registers_or1k &) const { - return 0; - } + compact_unwind_encoding_t dwarfEncoding(Registers_or1k &) const { + return 0; + } #endif - + #if defined (_LIBUNWIND_TARGET_HEXAGON) compact_unwind_encoding_t dwarfEncoding(Registers_hexagon &) const { return 0; @@ -1181,7 +1181,7 @@ private: return 0; } #endif - + #if defined (_LIBUNWIND_TARGET_MIPS_NEWABI) compact_unwind_encoding_t dwarfEncoding(Registers_mips_newabi &) const { return 0; @@ -1221,152 +1221,152 @@ private: #endif // defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) - A &_addressSpace; - R _registers; - unw_proc_info_t _info; - bool _unwindInfoMissing; - bool _isSignalFrame; + A &_addressSpace; + R _registers; + unw_proc_info_t _info; + bool _unwindInfoMissing; + bool _isSignalFrame; #if defined(_LIBUNWIND_TARGET_LINUX) && defined(_LIBUNWIND_TARGET_AARCH64) bool _isSigReturn = false; #endif -}; - - -template <typename A, typename R> -UnwindCursor<A, R>::UnwindCursor(unw_context_t *context, A &as) - : _addressSpace(as), _registers(context), _unwindInfoMissing(false), - _isSignalFrame(false) { +}; + + +template <typename A, typename R> +UnwindCursor<A, R>::UnwindCursor(unw_context_t *context, A &as) + : _addressSpace(as), _registers(context), _unwindInfoMissing(false), + _isSignalFrame(false) { static_assert((check_fit<UnwindCursor<A, R>, unw_cursor_t>::does_fit), - "UnwindCursor<> does not fit in unw_cursor_t"); + "UnwindCursor<> does not fit in unw_cursor_t"); static_assert((alignof(UnwindCursor<A, R>) <= alignof(unw_cursor_t)), "UnwindCursor<> requires more alignment than unw_cursor_t"); - memset(&_info, 0, sizeof(_info)); -} - -template <typename A, typename R> -UnwindCursor<A, R>::UnwindCursor(A &as, void *) - : _addressSpace(as), _unwindInfoMissing(false), _isSignalFrame(false) { - memset(&_info, 0, sizeof(_info)); - // FIXME - // fill in _registers from thread arg -} - - -template <typename A, typename R> -bool UnwindCursor<A, R>::validReg(int regNum) { - return _registers.validRegister(regNum); -} - -template <typename A, typename R> -unw_word_t UnwindCursor<A, R>::getReg(int regNum) { - return _registers.getRegister(regNum); -} - -template <typename A, typename R> -void UnwindCursor<A, R>::setReg(int regNum, unw_word_t value) { - _registers.setRegister(regNum, (typename A::pint_t)value); -} - -template <typename A, typename R> -bool UnwindCursor<A, R>::validFloatReg(int regNum) { - return _registers.validFloatRegister(regNum); -} - -template <typename A, typename R> -unw_fpreg_t UnwindCursor<A, R>::getFloatReg(int regNum) { - return _registers.getFloatRegister(regNum); -} - -template <typename A, typename R> -void UnwindCursor<A, R>::setFloatReg(int regNum, unw_fpreg_t value) { - _registers.setFloatRegister(regNum, value); -} - -template <typename A, typename R> void UnwindCursor<A, R>::jumpto() { - _registers.jumpto(); -} - -#ifdef __arm__ -template <typename A, typename R> void UnwindCursor<A, R>::saveVFPAsX() { - _registers.saveVFPAsX(); -} -#endif - -template <typename A, typename R> -const char *UnwindCursor<A, R>::getRegisterName(int regNum) { - return _registers.getRegisterName(regNum); -} - -template <typename A, typename R> bool UnwindCursor<A, R>::isSignalFrame() { - return _isSignalFrame; -} - + memset(&_info, 0, sizeof(_info)); +} + +template <typename A, typename R> +UnwindCursor<A, R>::UnwindCursor(A &as, void *) + : _addressSpace(as), _unwindInfoMissing(false), _isSignalFrame(false) { + memset(&_info, 0, sizeof(_info)); + // FIXME + // fill in _registers from thread arg +} + + +template <typename A, typename R> +bool UnwindCursor<A, R>::validReg(int regNum) { + return _registers.validRegister(regNum); +} + +template <typename A, typename R> +unw_word_t UnwindCursor<A, R>::getReg(int regNum) { + return _registers.getRegister(regNum); +} + +template <typename A, typename R> +void UnwindCursor<A, R>::setReg(int regNum, unw_word_t value) { + _registers.setRegister(regNum, (typename A::pint_t)value); +} + +template <typename A, typename R> +bool UnwindCursor<A, R>::validFloatReg(int regNum) { + return _registers.validFloatRegister(regNum); +} + +template <typename A, typename R> +unw_fpreg_t UnwindCursor<A, R>::getFloatReg(int regNum) { + return _registers.getFloatRegister(regNum); +} + +template <typename A, typename R> +void UnwindCursor<A, R>::setFloatReg(int regNum, unw_fpreg_t value) { + _registers.setFloatRegister(regNum, value); +} + +template <typename A, typename R> void UnwindCursor<A, R>::jumpto() { + _registers.jumpto(); +} + +#ifdef __arm__ +template <typename A, typename R> void UnwindCursor<A, R>::saveVFPAsX() { + _registers.saveVFPAsX(); +} +#endif + +template <typename A, typename R> +const char *UnwindCursor<A, R>::getRegisterName(int regNum) { + return _registers.getRegisterName(regNum); +} + +template <typename A, typename R> bool UnwindCursor<A, R>::isSignalFrame() { + return _isSignalFrame; +} + #endif // defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) #if defined(_LIBUNWIND_ARM_EHABI) -template<typename A> -struct EHABISectionIterator { - typedef EHABISectionIterator _Self; - - typedef typename A::pint_t value_type; - typedef typename A::pint_t* pointer; - typedef typename A::pint_t& reference; - typedef size_t size_type; - typedef size_t difference_type; - - static _Self begin(A& addressSpace, const UnwindInfoSections& sects) { - return _Self(addressSpace, sects, 0); - } - static _Self end(A& addressSpace, const UnwindInfoSections& sects) { +template<typename A> +struct EHABISectionIterator { + typedef EHABISectionIterator _Self; + + typedef typename A::pint_t value_type; + typedef typename A::pint_t* pointer; + typedef typename A::pint_t& reference; + typedef size_t size_type; + typedef size_t difference_type; + + static _Self begin(A& addressSpace, const UnwindInfoSections& sects) { + return _Self(addressSpace, sects, 0); + } + static _Self end(A& addressSpace, const UnwindInfoSections& sects) { return _Self(addressSpace, sects, sects.arm_section_length / sizeof(EHABIIndexEntry)); - } - - EHABISectionIterator(A& addressSpace, const UnwindInfoSections& sects, size_t i) - : _i(i), _addressSpace(&addressSpace), _sects(§s) {} - - _Self& operator++() { ++_i; return *this; } - _Self& operator+=(size_t a) { _i += a; return *this; } - _Self& operator--() { assert(_i > 0); --_i; return *this; } - _Self& operator-=(size_t a) { assert(_i >= a); _i -= a; return *this; } - - _Self operator+(size_t a) { _Self out = *this; out._i += a; return out; } - _Self operator-(size_t a) { assert(_i >= a); _Self out = *this; out._i -= a; return out; } - + } + + EHABISectionIterator(A& addressSpace, const UnwindInfoSections& sects, size_t i) + : _i(i), _addressSpace(&addressSpace), _sects(§s) {} + + _Self& operator++() { ++_i; return *this; } + _Self& operator+=(size_t a) { _i += a; return *this; } + _Self& operator--() { assert(_i > 0); --_i; return *this; } + _Self& operator-=(size_t a) { assert(_i >= a); _i -= a; return *this; } + + _Self operator+(size_t a) { _Self out = *this; out._i += a; return out; } + _Self operator-(size_t a) { assert(_i >= a); _Self out = *this; out._i -= a; return out; } + size_t operator-(const _Self& other) const { return _i - other._i; } - - bool operator==(const _Self& other) const { - assert(_addressSpace == other._addressSpace); - assert(_sects == other._sects); - return _i == other._i; - } - + + bool operator==(const _Self& other) const { + assert(_addressSpace == other._addressSpace); + assert(_sects == other._sects); + return _i == other._i; + } + bool operator!=(const _Self& other) const { assert(_addressSpace == other._addressSpace); assert(_sects == other._sects); return _i != other._i; } - typename A::pint_t operator*() const { return functionAddress(); } - - typename A::pint_t functionAddress() const { - typename A::pint_t indexAddr = _sects->arm_section + arrayoffsetof( - EHABIIndexEntry, _i, functionOffset); - return indexAddr + signExtendPrel31(_addressSpace->get32(indexAddr)); - } - - typename A::pint_t dataAddress() { - typename A::pint_t indexAddr = _sects->arm_section + arrayoffsetof( - EHABIIndexEntry, _i, data); - return indexAddr; - } - - private: - size_t _i; - A* _addressSpace; - const UnwindInfoSections* _sects; -}; - + typename A::pint_t operator*() const { return functionAddress(); } + + typename A::pint_t functionAddress() const { + typename A::pint_t indexAddr = _sects->arm_section + arrayoffsetof( + EHABIIndexEntry, _i, functionOffset); + return indexAddr + signExtendPrel31(_addressSpace->get32(indexAddr)); + } + + typename A::pint_t dataAddress() { + typename A::pint_t indexAddr = _sects->arm_section + arrayoffsetof( + EHABIIndexEntry, _i, data); + return indexAddr; + } + + private: + size_t _i; + A* _addressSpace; + const UnwindInfoSections* _sects; +}; + namespace { template <typename A> @@ -1390,147 +1390,147 @@ EHABISectionIterator<A> EHABISectionUpperBound( } -template <typename A, typename R> -bool UnwindCursor<A, R>::getInfoFromEHABISection( - pint_t pc, - const UnwindInfoSections §s) { - EHABISectionIterator<A> begin = - EHABISectionIterator<A>::begin(_addressSpace, sects); - EHABISectionIterator<A> end = - EHABISectionIterator<A>::end(_addressSpace, sects); +template <typename A, typename R> +bool UnwindCursor<A, R>::getInfoFromEHABISection( + pint_t pc, + const UnwindInfoSections §s) { + EHABISectionIterator<A> begin = + EHABISectionIterator<A>::begin(_addressSpace, sects); + EHABISectionIterator<A> end = + EHABISectionIterator<A>::end(_addressSpace, sects); if (begin == end) return false; - + EHABISectionIterator<A> itNextPC = EHABISectionUpperBound(begin, end, pc); if (itNextPC == begin) - return false; - EHABISectionIterator<A> itThisPC = itNextPC - 1; - - pint_t thisPC = itThisPC.functionAddress(); + return false; + EHABISectionIterator<A> itThisPC = itNextPC - 1; + + pint_t thisPC = itThisPC.functionAddress(); // If an exception is thrown from a function, corresponding to the last entry // in the table, we don't really know the function extent and have to choose a // value for nextPC. Choosing max() will allow the range check during trace to // succeed. pint_t nextPC = (itNextPC == end) ? UINTPTR_MAX : itNextPC.functionAddress(); - pint_t indexDataAddr = itThisPC.dataAddress(); - - if (indexDataAddr == 0) - return false; - - uint32_t indexData = _addressSpace.get32(indexDataAddr); - if (indexData == UNW_EXIDX_CANTUNWIND) - return false; - - // If the high bit is set, the exception handling table entry is inline inside - // the index table entry on the second word (aka |indexDataAddr|). Otherwise, + pint_t indexDataAddr = itThisPC.dataAddress(); + + if (indexDataAddr == 0) + return false; + + uint32_t indexData = _addressSpace.get32(indexDataAddr); + if (indexData == UNW_EXIDX_CANTUNWIND) + return false; + + // If the high bit is set, the exception handling table entry is inline inside + // the index table entry on the second word (aka |indexDataAddr|). Otherwise, // the table points at an offset in the exception handling table (section 5 // EHABI). - pint_t exceptionTableAddr; - uint32_t exceptionTableData; - bool isSingleWordEHT; - if (indexData & 0x80000000) { - exceptionTableAddr = indexDataAddr; - // TODO(ajwong): Should this data be 0? - exceptionTableData = indexData; - isSingleWordEHT = true; - } else { - exceptionTableAddr = indexDataAddr + signExtendPrel31(indexData); - exceptionTableData = _addressSpace.get32(exceptionTableAddr); - isSingleWordEHT = false; - } - - // Now we know the 3 things: - // exceptionTableAddr -- exception handler table entry. - // exceptionTableData -- the data inside the first word of the eht entry. - // isSingleWordEHT -- whether the entry is in the index. - unw_word_t personalityRoutine = 0xbadf00d; - bool scope32 = false; - uintptr_t lsda; - - // If the high bit in the exception handling table entry is set, the entry is - // in compact form (section 6.3 EHABI). - if (exceptionTableData & 0x80000000) { - // Grab the index of the personality routine from the compact form. - uint32_t choice = (exceptionTableData & 0x0f000000) >> 24; - uint32_t extraWords = 0; - switch (choice) { - case 0: - personalityRoutine = (unw_word_t) &__aeabi_unwind_cpp_pr0; - extraWords = 0; - scope32 = false; - lsda = isSingleWordEHT ? 0 : (exceptionTableAddr + 4); - break; - case 1: - personalityRoutine = (unw_word_t) &__aeabi_unwind_cpp_pr1; - extraWords = (exceptionTableData & 0x00ff0000) >> 16; - scope32 = false; - lsda = exceptionTableAddr + (extraWords + 1) * 4; - break; - case 2: - personalityRoutine = (unw_word_t) &__aeabi_unwind_cpp_pr2; - extraWords = (exceptionTableData & 0x00ff0000) >> 16; - scope32 = true; - lsda = exceptionTableAddr + (extraWords + 1) * 4; - break; - default: - _LIBUNWIND_ABORT("unknown personality routine"); - return false; - } - - if (isSingleWordEHT) { - if (extraWords != 0) { - _LIBUNWIND_ABORT("index inlined table detected but pr function " - "requires extra words"); - return false; - } - } - } else { - pint_t personalityAddr = - exceptionTableAddr + signExtendPrel31(exceptionTableData); - personalityRoutine = personalityAddr; - - // ARM EHABI # 6.2, # 9.2 - // - // +---- ehtp - // v - // +--------------------------------------+ - // | +--------+--------+--------+-------+ | - // | |0| prel31 to personalityRoutine | | - // | +--------+--------+--------+-------+ | - // | | N | unwind opcodes | | <-- UnwindData - // | +--------+--------+--------+-------+ | - // | | Word 2 unwind opcodes | | - // | +--------+--------+--------+-------+ | - // | ... | - // | +--------+--------+--------+-------+ | - // | | Word N unwind opcodes | | - // | +--------+--------+--------+-------+ | - // | | LSDA | | <-- lsda - // | | ... | | - // | +--------+--------+--------+-------+ | - // +--------------------------------------+ - - uint32_t *UnwindData = reinterpret_cast<uint32_t*>(exceptionTableAddr) + 1; - uint32_t FirstDataWord = *UnwindData; - size_t N = ((FirstDataWord >> 24) & 0xff); - size_t NDataWords = N + 1; - lsda = reinterpret_cast<uintptr_t>(UnwindData + NDataWords); - } - - _info.start_ip = thisPC; - _info.end_ip = nextPC; - _info.handler = personalityRoutine; - _info.unwind_info = exceptionTableAddr; - _info.lsda = lsda; - // flags is pr_cache.additional. See EHABI #7.2 for definition of bit 0. + pint_t exceptionTableAddr; + uint32_t exceptionTableData; + bool isSingleWordEHT; + if (indexData & 0x80000000) { + exceptionTableAddr = indexDataAddr; + // TODO(ajwong): Should this data be 0? + exceptionTableData = indexData; + isSingleWordEHT = true; + } else { + exceptionTableAddr = indexDataAddr + signExtendPrel31(indexData); + exceptionTableData = _addressSpace.get32(exceptionTableAddr); + isSingleWordEHT = false; + } + + // Now we know the 3 things: + // exceptionTableAddr -- exception handler table entry. + // exceptionTableData -- the data inside the first word of the eht entry. + // isSingleWordEHT -- whether the entry is in the index. + unw_word_t personalityRoutine = 0xbadf00d; + bool scope32 = false; + uintptr_t lsda; + + // If the high bit in the exception handling table entry is set, the entry is + // in compact form (section 6.3 EHABI). + if (exceptionTableData & 0x80000000) { + // Grab the index of the personality routine from the compact form. + uint32_t choice = (exceptionTableData & 0x0f000000) >> 24; + uint32_t extraWords = 0; + switch (choice) { + case 0: + personalityRoutine = (unw_word_t) &__aeabi_unwind_cpp_pr0; + extraWords = 0; + scope32 = false; + lsda = isSingleWordEHT ? 0 : (exceptionTableAddr + 4); + break; + case 1: + personalityRoutine = (unw_word_t) &__aeabi_unwind_cpp_pr1; + extraWords = (exceptionTableData & 0x00ff0000) >> 16; + scope32 = false; + lsda = exceptionTableAddr + (extraWords + 1) * 4; + break; + case 2: + personalityRoutine = (unw_word_t) &__aeabi_unwind_cpp_pr2; + extraWords = (exceptionTableData & 0x00ff0000) >> 16; + scope32 = true; + lsda = exceptionTableAddr + (extraWords + 1) * 4; + break; + default: + _LIBUNWIND_ABORT("unknown personality routine"); + return false; + } + + if (isSingleWordEHT) { + if (extraWords != 0) { + _LIBUNWIND_ABORT("index inlined table detected but pr function " + "requires extra words"); + return false; + } + } + } else { + pint_t personalityAddr = + exceptionTableAddr + signExtendPrel31(exceptionTableData); + personalityRoutine = personalityAddr; + + // ARM EHABI # 6.2, # 9.2 + // + // +---- ehtp + // v + // +--------------------------------------+ + // | +--------+--------+--------+-------+ | + // | |0| prel31 to personalityRoutine | | + // | +--------+--------+--------+-------+ | + // | | N | unwind opcodes | | <-- UnwindData + // | +--------+--------+--------+-------+ | + // | | Word 2 unwind opcodes | | + // | +--------+--------+--------+-------+ | + // | ... | + // | +--------+--------+--------+-------+ | + // | | Word N unwind opcodes | | + // | +--------+--------+--------+-------+ | + // | | LSDA | | <-- lsda + // | | ... | | + // | +--------+--------+--------+-------+ | + // +--------------------------------------+ + + uint32_t *UnwindData = reinterpret_cast<uint32_t*>(exceptionTableAddr) + 1; + uint32_t FirstDataWord = *UnwindData; + size_t N = ((FirstDataWord >> 24) & 0xff); + size_t NDataWords = N + 1; + lsda = reinterpret_cast<uintptr_t>(UnwindData + NDataWords); + } + + _info.start_ip = thisPC; + _info.end_ip = nextPC; + _info.handler = personalityRoutine; + _info.unwind_info = exceptionTableAddr; + _info.lsda = lsda; + // flags is pr_cache.additional. See EHABI #7.2 for definition of bit 0. _info.flags = (isSingleWordEHT ? 1 : 0) | (scope32 ? 0x2 : 0); // Use enum? - - return true; -} -#endif - + + return true; +} +#endif + #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) -template <typename A, typename R> +template <typename A, typename R> bool UnwindCursor<A, R>::getInfoFromFdeCie( const typename CFI_Parser<A>::FDE_Info &fdeInfo, const typename CFI_Parser<A>::CIE_Info &cieInfo, pint_t pc, @@ -1557,325 +1557,325 @@ bool UnwindCursor<A, R>::getInfoFromFdeCie( } template <typename A, typename R> -bool UnwindCursor<A, R>::getInfoFromDwarfSection(pint_t pc, - const UnwindInfoSections §s, - uint32_t fdeSectionOffsetHint) { - typename CFI_Parser<A>::FDE_Info fdeInfo; - typename CFI_Parser<A>::CIE_Info cieInfo; - bool foundFDE = false; - bool foundInCache = false; - // If compact encoding table gave offset into dwarf section, go directly there - if (fdeSectionOffsetHint != 0) { - foundFDE = CFI_Parser<A>::findFDE(_addressSpace, pc, sects.dwarf_section, +bool UnwindCursor<A, R>::getInfoFromDwarfSection(pint_t pc, + const UnwindInfoSections §s, + uint32_t fdeSectionOffsetHint) { + typename CFI_Parser<A>::FDE_Info fdeInfo; + typename CFI_Parser<A>::CIE_Info cieInfo; + bool foundFDE = false; + bool foundInCache = false; + // If compact encoding table gave offset into dwarf section, go directly there + if (fdeSectionOffsetHint != 0) { + foundFDE = CFI_Parser<A>::findFDE(_addressSpace, pc, sects.dwarf_section, sects.dwarf_section_length, - sects.dwarf_section + fdeSectionOffsetHint, - &fdeInfo, &cieInfo); - } + sects.dwarf_section + fdeSectionOffsetHint, + &fdeInfo, &cieInfo); + } #if defined(_LIBUNWIND_SUPPORT_DWARF_INDEX) - if (!foundFDE && (sects.dwarf_index_section != 0)) { - foundFDE = EHHeaderParser<A>::findFDE( - _addressSpace, pc, sects.dwarf_index_section, - (uint32_t)sects.dwarf_index_section_length, &fdeInfo, &cieInfo); - } -#endif - if (!foundFDE) { - // otherwise, search cache of previously found FDEs. - pint_t cachedFDE = DwarfFDECache<A>::findFDE(sects.dso_base, pc); - if (cachedFDE != 0) { - foundFDE = - CFI_Parser<A>::findFDE(_addressSpace, pc, sects.dwarf_section, + if (!foundFDE && (sects.dwarf_index_section != 0)) { + foundFDE = EHHeaderParser<A>::findFDE( + _addressSpace, pc, sects.dwarf_index_section, + (uint32_t)sects.dwarf_index_section_length, &fdeInfo, &cieInfo); + } +#endif + if (!foundFDE) { + // otherwise, search cache of previously found FDEs. + pint_t cachedFDE = DwarfFDECache<A>::findFDE(sects.dso_base, pc); + if (cachedFDE != 0) { + foundFDE = + CFI_Parser<A>::findFDE(_addressSpace, pc, sects.dwarf_section, sects.dwarf_section_length, - cachedFDE, &fdeInfo, &cieInfo); - foundInCache = foundFDE; - } - } - if (!foundFDE) { - // Still not found, do full scan of __eh_frame section. - foundFDE = CFI_Parser<A>::findFDE(_addressSpace, pc, sects.dwarf_section, + cachedFDE, &fdeInfo, &cieInfo); + foundInCache = foundFDE; + } + } + if (!foundFDE) { + // Still not found, do full scan of __eh_frame section. + foundFDE = CFI_Parser<A>::findFDE(_addressSpace, pc, sects.dwarf_section, sects.dwarf_section_length, 0, - &fdeInfo, &cieInfo); - } - if (foundFDE) { + &fdeInfo, &cieInfo); + } + if (foundFDE) { if (getInfoFromFdeCie(fdeInfo, cieInfo, pc, sects.dso_base)) { - // Add to cache (to make next lookup faster) if we had no hint - // and there was no index. - if (!foundInCache && (fdeSectionOffsetHint == 0)) { + // Add to cache (to make next lookup faster) if we had no hint + // and there was no index. + if (!foundInCache && (fdeSectionOffsetHint == 0)) { #if defined(_LIBUNWIND_SUPPORT_DWARF_INDEX) - if (sects.dwarf_index_section == 0) - #endif - DwarfFDECache<A>::add(sects.dso_base, fdeInfo.pcStart, fdeInfo.pcEnd, - fdeInfo.fdeStart); - } - return true; - } - } + if (sects.dwarf_index_section == 0) + #endif + DwarfFDECache<A>::add(sects.dso_base, fdeInfo.pcStart, fdeInfo.pcEnd, + fdeInfo.fdeStart); + } + return true; + } + } //_LIBUNWIND_DEBUG_LOG("can't find/use FDE for pc=0x%llX", (uint64_t)pc); - return false; -} + return false; +} #endif // defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - - + + #if defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) -template <typename A, typename R> -bool UnwindCursor<A, R>::getInfoFromCompactEncodingSection(pint_t pc, - const UnwindInfoSections §s) { - const bool log = false; - if (log) - fprintf(stderr, "getInfoFromCompactEncodingSection(pc=0x%llX, mh=0x%llX)\n", - (uint64_t)pc, (uint64_t)sects.dso_base); - - const UnwindSectionHeader<A> sectionHeader(_addressSpace, - sects.compact_unwind_section); - if (sectionHeader.version() != UNWIND_SECTION_VERSION) - return false; - - // do a binary search of top level index to find page with unwind info - pint_t targetFunctionOffset = pc - sects.dso_base; - const UnwindSectionIndexArray<A> topIndex(_addressSpace, - sects.compact_unwind_section - + sectionHeader.indexSectionOffset()); - uint32_t low = 0; - uint32_t high = sectionHeader.indexCount(); - uint32_t last = high - 1; - while (low < high) { - uint32_t mid = (low + high) / 2; - //if ( log ) fprintf(stderr, "\tmid=%d, low=%d, high=%d, *mid=0x%08X\n", - //mid, low, high, topIndex.functionOffset(mid)); - if (topIndex.functionOffset(mid) <= targetFunctionOffset) { - if ((mid == last) || - (topIndex.functionOffset(mid + 1) > targetFunctionOffset)) { - low = mid; - break; - } else { - low = mid + 1; - } - } else { - high = mid; - } - } - const uint32_t firstLevelFunctionOffset = topIndex.functionOffset(low); - const uint32_t firstLevelNextPageFunctionOffset = - topIndex.functionOffset(low + 1); - const pint_t secondLevelAddr = - sects.compact_unwind_section + topIndex.secondLevelPagesSectionOffset(low); - const pint_t lsdaArrayStartAddr = - sects.compact_unwind_section + topIndex.lsdaIndexArraySectionOffset(low); - const pint_t lsdaArrayEndAddr = - sects.compact_unwind_section + topIndex.lsdaIndexArraySectionOffset(low+1); - if (log) - fprintf(stderr, "\tfirst level search for result index=%d " - "to secondLevelAddr=0x%llX\n", - low, (uint64_t) secondLevelAddr); - // do a binary search of second level page index - uint32_t encoding = 0; - pint_t funcStart = 0; - pint_t funcEnd = 0; - pint_t lsda = 0; - pint_t personality = 0; - uint32_t pageKind = _addressSpace.get32(secondLevelAddr); - if (pageKind == UNWIND_SECOND_LEVEL_REGULAR) { - // regular page - UnwindSectionRegularPageHeader<A> pageHeader(_addressSpace, - secondLevelAddr); - UnwindSectionRegularArray<A> pageIndex( - _addressSpace, secondLevelAddr + pageHeader.entryPageOffset()); - // binary search looks for entry with e where index[e].offset <= pc < - // index[e+1].offset - if (log) - fprintf(stderr, "\tbinary search for targetFunctionOffset=0x%08llX in " - "regular page starting at secondLevelAddr=0x%llX\n", - (uint64_t) targetFunctionOffset, (uint64_t) secondLevelAddr); - low = 0; - high = pageHeader.entryCount(); - while (low < high) { - uint32_t mid = (low + high) / 2; - if (pageIndex.functionOffset(mid) <= targetFunctionOffset) { - if (mid == (uint32_t)(pageHeader.entryCount() - 1)) { - // at end of table - low = mid; - funcEnd = firstLevelNextPageFunctionOffset + sects.dso_base; - break; - } else if (pageIndex.functionOffset(mid + 1) > targetFunctionOffset) { - // next is too big, so we found it - low = mid; - funcEnd = pageIndex.functionOffset(low + 1) + sects.dso_base; - break; - } else { - low = mid + 1; - } - } else { - high = mid; - } - } - encoding = pageIndex.encoding(low); - funcStart = pageIndex.functionOffset(low) + sects.dso_base; - if (pc < funcStart) { - if (log) - fprintf( - stderr, - "\tpc not in table, pc=0x%llX, funcStart=0x%llX, funcEnd=0x%llX\n", - (uint64_t) pc, (uint64_t) funcStart, (uint64_t) funcEnd); - return false; - } - if (pc > funcEnd) { - if (log) - fprintf( - stderr, - "\tpc not in table, pc=0x%llX, funcStart=0x%llX, funcEnd=0x%llX\n", - (uint64_t) pc, (uint64_t) funcStart, (uint64_t) funcEnd); - return false; - } - } else if (pageKind == UNWIND_SECOND_LEVEL_COMPRESSED) { - // compressed page - UnwindSectionCompressedPageHeader<A> pageHeader(_addressSpace, - secondLevelAddr); - UnwindSectionCompressedArray<A> pageIndex( - _addressSpace, secondLevelAddr + pageHeader.entryPageOffset()); - const uint32_t targetFunctionPageOffset = - (uint32_t)(targetFunctionOffset - firstLevelFunctionOffset); - // binary search looks for entry with e where index[e].offset <= pc < - // index[e+1].offset - if (log) - fprintf(stderr, "\tbinary search of compressed page starting at " - "secondLevelAddr=0x%llX\n", - (uint64_t) secondLevelAddr); - low = 0; - last = pageHeader.entryCount() - 1; - high = pageHeader.entryCount(); - while (low < high) { - uint32_t mid = (low + high) / 2; - if (pageIndex.functionOffset(mid) <= targetFunctionPageOffset) { - if ((mid == last) || - (pageIndex.functionOffset(mid + 1) > targetFunctionPageOffset)) { - low = mid; - break; - } else { - low = mid + 1; - } - } else { - high = mid; - } - } - funcStart = pageIndex.functionOffset(low) + firstLevelFunctionOffset - + sects.dso_base; - if (low < last) - funcEnd = - pageIndex.functionOffset(low + 1) + firstLevelFunctionOffset - + sects.dso_base; - else - funcEnd = firstLevelNextPageFunctionOffset + sects.dso_base; - if (pc < funcStart) { +template <typename A, typename R> +bool UnwindCursor<A, R>::getInfoFromCompactEncodingSection(pint_t pc, + const UnwindInfoSections §s) { + const bool log = false; + if (log) + fprintf(stderr, "getInfoFromCompactEncodingSection(pc=0x%llX, mh=0x%llX)\n", + (uint64_t)pc, (uint64_t)sects.dso_base); + + const UnwindSectionHeader<A> sectionHeader(_addressSpace, + sects.compact_unwind_section); + if (sectionHeader.version() != UNWIND_SECTION_VERSION) + return false; + + // do a binary search of top level index to find page with unwind info + pint_t targetFunctionOffset = pc - sects.dso_base; + const UnwindSectionIndexArray<A> topIndex(_addressSpace, + sects.compact_unwind_section + + sectionHeader.indexSectionOffset()); + uint32_t low = 0; + uint32_t high = sectionHeader.indexCount(); + uint32_t last = high - 1; + while (low < high) { + uint32_t mid = (low + high) / 2; + //if ( log ) fprintf(stderr, "\tmid=%d, low=%d, high=%d, *mid=0x%08X\n", + //mid, low, high, topIndex.functionOffset(mid)); + if (topIndex.functionOffset(mid) <= targetFunctionOffset) { + if ((mid == last) || + (topIndex.functionOffset(mid + 1) > targetFunctionOffset)) { + low = mid; + break; + } else { + low = mid + 1; + } + } else { + high = mid; + } + } + const uint32_t firstLevelFunctionOffset = topIndex.functionOffset(low); + const uint32_t firstLevelNextPageFunctionOffset = + topIndex.functionOffset(low + 1); + const pint_t secondLevelAddr = + sects.compact_unwind_section + topIndex.secondLevelPagesSectionOffset(low); + const pint_t lsdaArrayStartAddr = + sects.compact_unwind_section + topIndex.lsdaIndexArraySectionOffset(low); + const pint_t lsdaArrayEndAddr = + sects.compact_unwind_section + topIndex.lsdaIndexArraySectionOffset(low+1); + if (log) + fprintf(stderr, "\tfirst level search for result index=%d " + "to secondLevelAddr=0x%llX\n", + low, (uint64_t) secondLevelAddr); + // do a binary search of second level page index + uint32_t encoding = 0; + pint_t funcStart = 0; + pint_t funcEnd = 0; + pint_t lsda = 0; + pint_t personality = 0; + uint32_t pageKind = _addressSpace.get32(secondLevelAddr); + if (pageKind == UNWIND_SECOND_LEVEL_REGULAR) { + // regular page + UnwindSectionRegularPageHeader<A> pageHeader(_addressSpace, + secondLevelAddr); + UnwindSectionRegularArray<A> pageIndex( + _addressSpace, secondLevelAddr + pageHeader.entryPageOffset()); + // binary search looks for entry with e where index[e].offset <= pc < + // index[e+1].offset + if (log) + fprintf(stderr, "\tbinary search for targetFunctionOffset=0x%08llX in " + "regular page starting at secondLevelAddr=0x%llX\n", + (uint64_t) targetFunctionOffset, (uint64_t) secondLevelAddr); + low = 0; + high = pageHeader.entryCount(); + while (low < high) { + uint32_t mid = (low + high) / 2; + if (pageIndex.functionOffset(mid) <= targetFunctionOffset) { + if (mid == (uint32_t)(pageHeader.entryCount() - 1)) { + // at end of table + low = mid; + funcEnd = firstLevelNextPageFunctionOffset + sects.dso_base; + break; + } else if (pageIndex.functionOffset(mid + 1) > targetFunctionOffset) { + // next is too big, so we found it + low = mid; + funcEnd = pageIndex.functionOffset(low + 1) + sects.dso_base; + break; + } else { + low = mid + 1; + } + } else { + high = mid; + } + } + encoding = pageIndex.encoding(low); + funcStart = pageIndex.functionOffset(low) + sects.dso_base; + if (pc < funcStart) { + if (log) + fprintf( + stderr, + "\tpc not in table, pc=0x%llX, funcStart=0x%llX, funcEnd=0x%llX\n", + (uint64_t) pc, (uint64_t) funcStart, (uint64_t) funcEnd); + return false; + } + if (pc > funcEnd) { + if (log) + fprintf( + stderr, + "\tpc not in table, pc=0x%llX, funcStart=0x%llX, funcEnd=0x%llX\n", + (uint64_t) pc, (uint64_t) funcStart, (uint64_t) funcEnd); + return false; + } + } else if (pageKind == UNWIND_SECOND_LEVEL_COMPRESSED) { + // compressed page + UnwindSectionCompressedPageHeader<A> pageHeader(_addressSpace, + secondLevelAddr); + UnwindSectionCompressedArray<A> pageIndex( + _addressSpace, secondLevelAddr + pageHeader.entryPageOffset()); + const uint32_t targetFunctionPageOffset = + (uint32_t)(targetFunctionOffset - firstLevelFunctionOffset); + // binary search looks for entry with e where index[e].offset <= pc < + // index[e+1].offset + if (log) + fprintf(stderr, "\tbinary search of compressed page starting at " + "secondLevelAddr=0x%llX\n", + (uint64_t) secondLevelAddr); + low = 0; + last = pageHeader.entryCount() - 1; + high = pageHeader.entryCount(); + while (low < high) { + uint32_t mid = (low + high) / 2; + if (pageIndex.functionOffset(mid) <= targetFunctionPageOffset) { + if ((mid == last) || + (pageIndex.functionOffset(mid + 1) > targetFunctionPageOffset)) { + low = mid; + break; + } else { + low = mid + 1; + } + } else { + high = mid; + } + } + funcStart = pageIndex.functionOffset(low) + firstLevelFunctionOffset + + sects.dso_base; + if (low < last) + funcEnd = + pageIndex.functionOffset(low + 1) + firstLevelFunctionOffset + + sects.dso_base; + else + funcEnd = firstLevelNextPageFunctionOffset + sects.dso_base; + if (pc < funcStart) { _LIBUNWIND_DEBUG_LOG("malformed __unwind_info, pc=0x%llX " "not in second level compressed unwind table. " "funcStart=0x%llX", - (uint64_t) pc, (uint64_t) funcStart); - return false; - } - if (pc > funcEnd) { + (uint64_t) pc, (uint64_t) funcStart); + return false; + } + if (pc > funcEnd) { _LIBUNWIND_DEBUG_LOG("malformed __unwind_info, pc=0x%llX " "not in second level compressed unwind table. " "funcEnd=0x%llX", - (uint64_t) pc, (uint64_t) funcEnd); - return false; - } - uint16_t encodingIndex = pageIndex.encodingIndex(low); - if (encodingIndex < sectionHeader.commonEncodingsArrayCount()) { - // encoding is in common table in section header - encoding = _addressSpace.get32( - sects.compact_unwind_section + - sectionHeader.commonEncodingsArraySectionOffset() + - encodingIndex * sizeof(uint32_t)); - } else { - // encoding is in page specific table - uint16_t pageEncodingIndex = - encodingIndex - (uint16_t)sectionHeader.commonEncodingsArrayCount(); - encoding = _addressSpace.get32(secondLevelAddr + - pageHeader.encodingsPageOffset() + - pageEncodingIndex * sizeof(uint32_t)); - } - } else { + (uint64_t) pc, (uint64_t) funcEnd); + return false; + } + uint16_t encodingIndex = pageIndex.encodingIndex(low); + if (encodingIndex < sectionHeader.commonEncodingsArrayCount()) { + // encoding is in common table in section header + encoding = _addressSpace.get32( + sects.compact_unwind_section + + sectionHeader.commonEncodingsArraySectionOffset() + + encodingIndex * sizeof(uint32_t)); + } else { + // encoding is in page specific table + uint16_t pageEncodingIndex = + encodingIndex - (uint16_t)sectionHeader.commonEncodingsArrayCount(); + encoding = _addressSpace.get32(secondLevelAddr + + pageHeader.encodingsPageOffset() + + pageEncodingIndex * sizeof(uint32_t)); + } + } else { _LIBUNWIND_DEBUG_LOG( "malformed __unwind_info at 0x%0llX bad second level page", (uint64_t)sects.compact_unwind_section); - return false; - } - - // look up LSDA, if encoding says function has one - if (encoding & UNWIND_HAS_LSDA) { - UnwindSectionLsdaArray<A> lsdaIndex(_addressSpace, lsdaArrayStartAddr); - uint32_t funcStartOffset = (uint32_t)(funcStart - sects.dso_base); - low = 0; - high = (uint32_t)(lsdaArrayEndAddr - lsdaArrayStartAddr) / - sizeof(unwind_info_section_header_lsda_index_entry); - // binary search looks for entry with exact match for functionOffset - if (log) - fprintf(stderr, - "\tbinary search of lsda table for targetFunctionOffset=0x%08X\n", - funcStartOffset); - while (low < high) { - uint32_t mid = (low + high) / 2; - if (lsdaIndex.functionOffset(mid) == funcStartOffset) { - lsda = lsdaIndex.lsdaOffset(mid) + sects.dso_base; - break; - } else if (lsdaIndex.functionOffset(mid) < funcStartOffset) { - low = mid + 1; - } else { - high = mid; - } - } - if (lsda == 0) { - _LIBUNWIND_DEBUG_LOG("found encoding 0x%08X with HAS_LSDA bit set for " + return false; + } + + // look up LSDA, if encoding says function has one + if (encoding & UNWIND_HAS_LSDA) { + UnwindSectionLsdaArray<A> lsdaIndex(_addressSpace, lsdaArrayStartAddr); + uint32_t funcStartOffset = (uint32_t)(funcStart - sects.dso_base); + low = 0; + high = (uint32_t)(lsdaArrayEndAddr - lsdaArrayStartAddr) / + sizeof(unwind_info_section_header_lsda_index_entry); + // binary search looks for entry with exact match for functionOffset + if (log) + fprintf(stderr, + "\tbinary search of lsda table for targetFunctionOffset=0x%08X\n", + funcStartOffset); + while (low < high) { + uint32_t mid = (low + high) / 2; + if (lsdaIndex.functionOffset(mid) == funcStartOffset) { + lsda = lsdaIndex.lsdaOffset(mid) + sects.dso_base; + break; + } else if (lsdaIndex.functionOffset(mid) < funcStartOffset) { + low = mid + 1; + } else { + high = mid; + } + } + if (lsda == 0) { + _LIBUNWIND_DEBUG_LOG("found encoding 0x%08X with HAS_LSDA bit set for " "pc=0x%0llX, but lsda table has no entry", - encoding, (uint64_t) pc); - return false; - } - } - + encoding, (uint64_t) pc); + return false; + } + } + // extract personality routine, if encoding says function has one - uint32_t personalityIndex = (encoding & UNWIND_PERSONALITY_MASK) >> - (__builtin_ctz(UNWIND_PERSONALITY_MASK)); - if (personalityIndex != 0) { - --personalityIndex; // change 1-based to zero-based index + uint32_t personalityIndex = (encoding & UNWIND_PERSONALITY_MASK) >> + (__builtin_ctz(UNWIND_PERSONALITY_MASK)); + if (personalityIndex != 0) { + --personalityIndex; // change 1-based to zero-based index if (personalityIndex >= sectionHeader.personalityArrayCount()) { - _LIBUNWIND_DEBUG_LOG("found encoding 0x%08X with personality index %d, " + _LIBUNWIND_DEBUG_LOG("found encoding 0x%08X with personality index %d, " "but personality table has only %d entries", - encoding, personalityIndex, - sectionHeader.personalityArrayCount()); - return false; - } - int32_t personalityDelta = (int32_t)_addressSpace.get32( - sects.compact_unwind_section + - sectionHeader.personalityArraySectionOffset() + - personalityIndex * sizeof(uint32_t)); - pint_t personalityPointer = sects.dso_base + (pint_t)personalityDelta; - personality = _addressSpace.getP(personalityPointer); - if (log) - fprintf(stderr, "getInfoFromCompactEncodingSection(pc=0x%llX), " - "personalityDelta=0x%08X, personality=0x%08llX\n", - (uint64_t) pc, personalityDelta, (uint64_t) personality); - } - - if (log) - fprintf(stderr, "getInfoFromCompactEncodingSection(pc=0x%llX), " - "encoding=0x%08X, lsda=0x%08llX for funcStart=0x%llX\n", - (uint64_t) pc, encoding, (uint64_t) lsda, (uint64_t) funcStart); - _info.start_ip = funcStart; - _info.end_ip = funcEnd; - _info.lsda = lsda; - _info.handler = personality; - _info.gp = 0; - _info.flags = 0; - _info.format = encoding; - _info.unwind_info = 0; - _info.unwind_info_size = 0; - _info.extra = sects.dso_base; - return true; -} + encoding, personalityIndex, + sectionHeader.personalityArrayCount()); + return false; + } + int32_t personalityDelta = (int32_t)_addressSpace.get32( + sects.compact_unwind_section + + sectionHeader.personalityArraySectionOffset() + + personalityIndex * sizeof(uint32_t)); + pint_t personalityPointer = sects.dso_base + (pint_t)personalityDelta; + personality = _addressSpace.getP(personalityPointer); + if (log) + fprintf(stderr, "getInfoFromCompactEncodingSection(pc=0x%llX), " + "personalityDelta=0x%08X, personality=0x%08llX\n", + (uint64_t) pc, personalityDelta, (uint64_t) personality); + } + + if (log) + fprintf(stderr, "getInfoFromCompactEncodingSection(pc=0x%llX), " + "encoding=0x%08X, lsda=0x%08llX for funcStart=0x%llX\n", + (uint64_t) pc, encoding, (uint64_t) lsda, (uint64_t) funcStart); + _info.start_ip = funcStart; + _info.end_ip = funcEnd; + _info.lsda = lsda; + _info.handler = personality; + _info.gp = 0; + _info.flags = 0; + _info.format = encoding; + _info.unwind_info = 0; + _info.unwind_info_size = 0; + _info.extra = sects.dso_base; + return true; +} #endif // defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) - - + + #if defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) -template <typename A, typename R> +template <typename A, typename R> bool UnwindCursor<A, R>::getInfoFromSEH(pint_t pc) { pint_t base; RUNTIME_FUNCTION *unwindEntry = lookUpSEHUnwindInfo(pc, &base); @@ -1924,58 +1924,58 @@ bool UnwindCursor<A, R>::getInfoFromSEH(pint_t pc) { template <typename A, typename R> -void UnwindCursor<A, R>::setInfoBasedOnIPRegister(bool isReturnAddress) { +void UnwindCursor<A, R>::setInfoBasedOnIPRegister(bool isReturnAddress) { #if defined(_LIBUNWIND_TARGET_LINUX) && defined(_LIBUNWIND_TARGET_AARCH64) _isSigReturn = false; #endif pint_t pc = static_cast<pint_t>(this->getReg(UNW_REG_IP)); #if defined(_LIBUNWIND_ARM_EHABI) - // Remove the thumb bit so the IP represents the actual instruction address. - // This matches the behaviour of _Unwind_GetIP on arm. - pc &= (pint_t)~0x1; -#endif - + // Remove the thumb bit so the IP represents the actual instruction address. + // This matches the behaviour of _Unwind_GetIP on arm. + pc &= (pint_t)~0x1; +#endif + // Exit early if at the top of the stack. if (pc == 0) { _unwindInfoMissing = true; return; } - // If the last line of a function is a "throw" the compiler sometimes - // emits no instructions after the call to __cxa_throw. This means - // the return address is actually the start of the next function. - // To disambiguate this, back up the pc when we know it is a return - // address. - if (isReturnAddress) - --pc; - - // Ask address space object to find unwind sections for this pc. - UnwindInfoSections sects; - if (_addressSpace.findUnwindSections(pc, sects)) { + // If the last line of a function is a "throw" the compiler sometimes + // emits no instructions after the call to __cxa_throw. This means + // the return address is actually the start of the next function. + // To disambiguate this, back up the pc when we know it is a return + // address. + if (isReturnAddress) + --pc; + + // Ask address space object to find unwind sections for this pc. + UnwindInfoSections sects; + if (_addressSpace.findUnwindSections(pc, sects)) { #if defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) - // If there is a compact unwind encoding table, look there first. - if (sects.compact_unwind_section != 0) { - if (this->getInfoFromCompactEncodingSection(pc, sects)) { + // If there is a compact unwind encoding table, look there first. + if (sects.compact_unwind_section != 0) { + if (this->getInfoFromCompactEncodingSection(pc, sects)) { #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - // Found info in table, done unless encoding says to use dwarf. - uint32_t dwarfOffset; - if ((sects.dwarf_section != 0) && compactSaysUseDwarf(&dwarfOffset)) { - if (this->getInfoFromDwarfSection(pc, sects, dwarfOffset)) { - // found info in dwarf, done - return; - } - } - #endif - // If unwind table has entry, but entry says there is no unwind info, - // record that we have no unwind info. - if (_info.format == 0) - _unwindInfoMissing = true; - return; - } - } + // Found info in table, done unless encoding says to use dwarf. + uint32_t dwarfOffset; + if ((sects.dwarf_section != 0) && compactSaysUseDwarf(&dwarfOffset)) { + if (this->getInfoFromDwarfSection(pc, sects, dwarfOffset)) { + // found info in dwarf, done + return; + } + } + #endif + // If unwind table has entry, but entry says there is no unwind info, + // record that we have no unwind info. + if (_info.format == 0) + _unwindInfoMissing = true; + return; + } + } #endif // defined(_LIBUNWIND_SUPPORT_COMPACT_UNWIND) - + #if defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) // If there is SEH unwind info, look there next. if (this->getInfoFromSEH(pc)) @@ -1983,61 +1983,61 @@ void UnwindCursor<A, R>::setInfoBasedOnIPRegister(bool isReturnAddress) { #endif #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - // If there is dwarf unwind info, look there next. - if (sects.dwarf_section != 0) { - if (this->getInfoFromDwarfSection(pc, sects)) { - // found info in dwarf, done - return; - } - } -#endif - + // If there is dwarf unwind info, look there next. + if (sects.dwarf_section != 0) { + if (this->getInfoFromDwarfSection(pc, sects)) { + // found info in dwarf, done + return; + } + } +#endif + #if defined(_LIBUNWIND_ARM_EHABI) - // If there is ARM EHABI unwind info, look there next. - if (sects.arm_section != 0 && this->getInfoFromEHABISection(pc, sects)) - return; -#endif - } - + // If there is ARM EHABI unwind info, look there next. + if (sects.arm_section != 0 && this->getInfoFromEHABISection(pc, sects)) + return; +#endif + } + #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - // There is no static unwind info for this pc. Look to see if an FDE was - // dynamically registered for it. + // There is no static unwind info for this pc. Look to see if an FDE was + // dynamically registered for it. pint_t cachedFDE = DwarfFDECache<A>::findFDE(DwarfFDECache<A>::kSearchAll, pc); - if (cachedFDE != 0) { + if (cachedFDE != 0) { typename CFI_Parser<A>::FDE_Info fdeInfo; typename CFI_Parser<A>::CIE_Info cieInfo; if (!CFI_Parser<A>::decodeFDE(_addressSpace, cachedFDE, &fdeInfo, &cieInfo)) if (getInfoFromFdeCie(fdeInfo, cieInfo, pc, 0)) - return; - } - - // Lastly, ask AddressSpace object about platform specific ways to locate - // other FDEs. - pint_t fde; - if (_addressSpace.findOtherFDE(pc, fde)) { + return; + } + + // Lastly, ask AddressSpace object about platform specific ways to locate + // other FDEs. + pint_t fde; + if (_addressSpace.findOtherFDE(pc, fde)) { typename CFI_Parser<A>::FDE_Info fdeInfo; typename CFI_Parser<A>::CIE_Info cieInfo; - if (!CFI_Parser<A>::decodeFDE(_addressSpace, fde, &fdeInfo, &cieInfo)) { - // Double check this FDE is for a function that includes the pc. + if (!CFI_Parser<A>::decodeFDE(_addressSpace, fde, &fdeInfo, &cieInfo)) { + // Double check this FDE is for a function that includes the pc. if ((fdeInfo.pcStart <= pc) && (pc < fdeInfo.pcEnd)) if (getInfoFromFdeCie(fdeInfo, cieInfo, pc, 0)) - return; - } - } + return; + } + } #endif // #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - + #if defined(_LIBUNWIND_TARGET_LINUX) && defined(_LIBUNWIND_TARGET_AARCH64) if (setInfoForSigReturn()) return; #endif - // no unwind info, flag that we can't reliably unwind - _unwindInfoMissing = true; -} - + // no unwind info, flag that we can't reliably unwind + _unwindInfoMissing = true; +} + #if defined(_LIBUNWIND_TARGET_LINUX) && defined(_LIBUNWIND_TARGET_AARCH64) -template <typename A, typename R> +template <typename A, typename R> bool UnwindCursor<A, R>::setInfoForSigReturn(Registers_arm64 &) { // Look for the sigreturn trampoline. The trampoline's body is two // specific instructions (see below). Typically the trampoline comes from the @@ -2099,13 +2099,13 @@ int UnwindCursor<A, R>::stepThroughSigReturn(Registers_arm64 &) { #endif // defined(_LIBUNWIND_TARGET_LINUX) && defined(_LIBUNWIND_TARGET_AARCH64) template <typename A, typename R> -int UnwindCursor<A, R>::step() { - // Bottom of stack is defined is when unwind info cannot be found. - if (_unwindInfoMissing) - return UNW_STEP_END; - - // Use unwinding info to modify register set as if function returned. - int result; +int UnwindCursor<A, R>::step() { + // Bottom of stack is defined is when unwind info cannot be found. + if (_unwindInfoMissing) + return UNW_STEP_END; + + // Use unwinding info to modify register set as if function returned. + int result; #if defined(_LIBUNWIND_TARGET_LINUX) && defined(_LIBUNWIND_TARGET_AARCH64) if (_isSigReturn) { result = this->stepThroughSigReturn(); @@ -2120,45 +2120,45 @@ int UnwindCursor<A, R>::step() { result = this->stepWithDwarfFDE(); #elif defined(_LIBUNWIND_ARM_EHABI) result = this->stepWithEHABI(); -#else - #error Need _LIBUNWIND_SUPPORT_COMPACT_UNWIND or \ +#else + #error Need _LIBUNWIND_SUPPORT_COMPACT_UNWIND or \ _LIBUNWIND_SUPPORT_SEH_UNWIND or \ - _LIBUNWIND_SUPPORT_DWARF_UNWIND or \ - _LIBUNWIND_ARM_EHABI -#endif - } - - // update info based on new PC - if (result == UNW_STEP_SUCCESS) { - this->setInfoBasedOnIPRegister(true); - if (_unwindInfoMissing) - return UNW_STEP_END; - } - - return result; -} - -template <typename A, typename R> -void UnwindCursor<A, R>::getInfo(unw_proc_info_t *info) { + _LIBUNWIND_SUPPORT_DWARF_UNWIND or \ + _LIBUNWIND_ARM_EHABI +#endif + } + + // update info based on new PC + if (result == UNW_STEP_SUCCESS) { + this->setInfoBasedOnIPRegister(true); + if (_unwindInfoMissing) + return UNW_STEP_END; + } + + return result; +} + +template <typename A, typename R> +void UnwindCursor<A, R>::getInfo(unw_proc_info_t *info) { if (_unwindInfoMissing) memset(info, 0, sizeof(*info)); else *info = _info; -} - -template <typename A, typename R> -bool UnwindCursor<A, R>::getFunctionName(char *buf, size_t bufLen, - unw_word_t *offset) { - return _addressSpace.findFunctionName((pint_t)this->getReg(UNW_REG_IP), - buf, bufLen, offset); -} - +} + +template <typename A, typename R> +bool UnwindCursor<A, R>::getFunctionName(char *buf, size_t bufLen, + unw_word_t *offset) { + return _addressSpace.findFunctionName((pint_t)this->getReg(UNW_REG_IP), + buf, bufLen, offset); +} + #if defined(_LIBUNWIND_USE_CET) extern "C" void *__libunwind_cet_get_registers(unw_cursor_t *cursor) { AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; return co->get_registers(); } #endif -} // namespace libunwind - -#endif // __UNWINDCURSOR_HPP__ +} // namespace libunwind + +#endif // __UNWINDCURSOR_HPP__ diff --git a/contrib/libs/libunwind/src/UnwindLevel1-gcc-ext.c b/contrib/libs/libunwind/src/UnwindLevel1-gcc-ext.c index 1032fbf688..951d5d219a 100644 --- a/contrib/libs/libunwind/src/UnwindLevel1-gcc-ext.c +++ b/contrib/libs/libunwind/src/UnwindLevel1-gcc-ext.c @@ -1,29 +1,29 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Implements gcc extensions to the C++ ABI Exception Handling Level 1. -// -//===----------------------------------------------------------------------===// - -#include <inttypes.h> -#include <stdbool.h> -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include "config.h" -#include "libunwind_ext.h" -#include "libunwind.h" -#include "Unwind-EHABI.h" -#include "unwind.h" - +// +// +// Implements gcc extensions to the C++ ABI Exception Handling Level 1. +// +//===----------------------------------------------------------------------===// + +#include <inttypes.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "config.h" +#include "libunwind_ext.h" +#include "libunwind.h" +#include "Unwind-EHABI.h" +#include "unwind.h" + #if defined(_LIBUNWIND_BUILD_ZERO_COST_APIS) - + #if defined(_LIBUNWIND_SUPPORT_SEH_UNWIND) #define PRIVATE_1 private_[0] #elif defined(_LIBUNWIND_ARM_EHABI) @@ -32,185 +32,185 @@ #define PRIVATE_1 private_1 #endif -/// Called by __cxa_rethrow(). -_LIBUNWIND_EXPORT _Unwind_Reason_Code -_Unwind_Resume_or_Rethrow(_Unwind_Exception *exception_object) { +/// Called by __cxa_rethrow(). +_LIBUNWIND_EXPORT _Unwind_Reason_Code +_Unwind_Resume_or_Rethrow(_Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API( "_Unwind_Resume_or_Rethrow(ex_obj=%p), private_1=%" PRIdPTR, (void *)exception_object, (intptr_t)exception_object->PRIVATE_1); - - // If this is non-forced and a stopping place was found, then this is a - // re-throw. - // Call _Unwind_RaiseException() as if this was a new exception + + // If this is non-forced and a stopping place was found, then this is a + // re-throw. + // Call _Unwind_RaiseException() as if this was a new exception if (exception_object->PRIVATE_1 == 0) { - return _Unwind_RaiseException(exception_object); - // Will return if there is no catch clause, so that __cxa_rethrow can call - // std::terminate(). - } - - // Call through to _Unwind_Resume() which distiguishes between forced and - // regular exceptions. - _Unwind_Resume(exception_object); - _LIBUNWIND_ABORT("_Unwind_Resume_or_Rethrow() called _Unwind_RaiseException()" - " which unexpectedly returned"); -} - -/// Called by personality handler during phase 2 to get base address for data -/// relative encodings. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetDataRelBase(struct _Unwind_Context *context) { - (void)context; + return _Unwind_RaiseException(exception_object); + // Will return if there is no catch clause, so that __cxa_rethrow can call + // std::terminate(). + } + + // Call through to _Unwind_Resume() which distiguishes between forced and + // regular exceptions. + _Unwind_Resume(exception_object); + _LIBUNWIND_ABORT("_Unwind_Resume_or_Rethrow() called _Unwind_RaiseException()" + " which unexpectedly returned"); +} + +/// Called by personality handler during phase 2 to get base address for data +/// relative encodings. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetDataRelBase(struct _Unwind_Context *context) { + (void)context; _LIBUNWIND_TRACE_API("_Unwind_GetDataRelBase(context=%p)", (void *)context); - _LIBUNWIND_ABORT("_Unwind_GetDataRelBase() not implemented"); -} - - -/// Called by personality handler during phase 2 to get base address for text -/// relative encodings. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetTextRelBase(struct _Unwind_Context *context) { - (void)context; + _LIBUNWIND_ABORT("_Unwind_GetDataRelBase() not implemented"); +} + + +/// Called by personality handler during phase 2 to get base address for text +/// relative encodings. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetTextRelBase(struct _Unwind_Context *context) { + (void)context; _LIBUNWIND_TRACE_API("_Unwind_GetTextRelBase(context=%p)", (void *)context); - _LIBUNWIND_ABORT("_Unwind_GetTextRelBase() not implemented"); -} - - -/// Scans unwind information to find the function that contains the -/// specified code address "pc". -_LIBUNWIND_EXPORT void *_Unwind_FindEnclosingFunction(void *pc) { + _LIBUNWIND_ABORT("_Unwind_GetTextRelBase() not implemented"); +} + + +/// Scans unwind information to find the function that contains the +/// specified code address "pc". +_LIBUNWIND_EXPORT void *_Unwind_FindEnclosingFunction(void *pc) { _LIBUNWIND_TRACE_API("_Unwind_FindEnclosingFunction(pc=%p)", pc); - // This is slow, but works. - // We create an unwind cursor then alter the IP to be pc - unw_cursor_t cursor; - unw_context_t uc; - unw_proc_info_t info; + // This is slow, but works. + // We create an unwind cursor then alter the IP to be pc + unw_cursor_t cursor; + unw_context_t uc; + unw_proc_info_t info; __unw_getcontext(&uc); __unw_init_local(&cursor, &uc); __unw_set_reg(&cursor, UNW_REG_IP, (unw_word_t)(intptr_t)pc); if (__unw_get_proc_info(&cursor, &info) == UNW_ESUCCESS) return (void *)(intptr_t) info.start_ip; - else - return NULL; -} - -/// Walk every frame and call trace function at each one. If trace function -/// returns anything other than _URC_NO_REASON, then walk is terminated. -_LIBUNWIND_EXPORT _Unwind_Reason_Code -_Unwind_Backtrace(_Unwind_Trace_Fn callback, void *ref) { - unw_cursor_t cursor; - unw_context_t uc; + else + return NULL; +} + +/// Walk every frame and call trace function at each one. If trace function +/// returns anything other than _URC_NO_REASON, then walk is terminated. +_LIBUNWIND_EXPORT _Unwind_Reason_Code +_Unwind_Backtrace(_Unwind_Trace_Fn callback, void *ref) { + unw_cursor_t cursor; + unw_context_t uc; __unw_getcontext(&uc); __unw_init_local(&cursor, &uc); - + _LIBUNWIND_TRACE_API("_Unwind_Backtrace(callback=%p)", - (void *)(uintptr_t)callback); - + (void *)(uintptr_t)callback); + #if defined(_LIBUNWIND_ARM_EHABI) - // Create a mock exception object for force unwinding. - _Unwind_Exception ex; - memset(&ex, '\0', sizeof(ex)); + // Create a mock exception object for force unwinding. + _Unwind_Exception ex; + memset(&ex, '\0', sizeof(ex)); strcpy((char *)&ex.exception_class, "CLNGUNW"); -#endif - - // walk each frame - while (true) { - _Unwind_Reason_Code result; - +#endif + + // walk each frame + while (true) { + _Unwind_Reason_Code result; + #if !defined(_LIBUNWIND_ARM_EHABI) // ask libunwind to get next frame (skip over first frame which is - // _Unwind_Backtrace()) + // _Unwind_Backtrace()) if (__unw_step(&cursor) <= 0) { - _LIBUNWIND_TRACE_UNWINDING(" _backtrace: ended because cursor reached " + _LIBUNWIND_TRACE_UNWINDING(" _backtrace: ended because cursor reached " "bottom of stack, returning %d", - _URC_END_OF_STACK); - return _URC_END_OF_STACK; - } -#else - // Get the information for this frame. - unw_proc_info_t frameInfo; + _URC_END_OF_STACK); + return _URC_END_OF_STACK; + } +#else + // Get the information for this frame. + unw_proc_info_t frameInfo; if (__unw_get_proc_info(&cursor, &frameInfo) != UNW_ESUCCESS) { - return _URC_END_OF_STACK; - } - - // Update the pr_cache in the mock exception object. - const uint32_t* unwindInfo = (uint32_t *) frameInfo.unwind_info; - ex.pr_cache.fnstart = frameInfo.start_ip; - ex.pr_cache.ehtp = (_Unwind_EHT_Header *) unwindInfo; - ex.pr_cache.additional= frameInfo.flags; - - struct _Unwind_Context *context = (struct _Unwind_Context *)&cursor; - // Get and call the personality function to unwind the frame. + return _URC_END_OF_STACK; + } + + // Update the pr_cache in the mock exception object. + const uint32_t* unwindInfo = (uint32_t *) frameInfo.unwind_info; + ex.pr_cache.fnstart = frameInfo.start_ip; + ex.pr_cache.ehtp = (_Unwind_EHT_Header *) unwindInfo; + ex.pr_cache.additional= frameInfo.flags; + + struct _Unwind_Context *context = (struct _Unwind_Context *)&cursor; + // Get and call the personality function to unwind the frame. _Unwind_Personality_Fn handler = (_Unwind_Personality_Fn)frameInfo.handler; - if (handler == NULL) { - return _URC_END_OF_STACK; - } - if (handler(_US_VIRTUAL_UNWIND_FRAME | _US_FORCE_UNWIND, &ex, context) != - _URC_CONTINUE_UNWIND) { - return _URC_END_OF_STACK; - } + if (handler == NULL) { + return _URC_END_OF_STACK; + } + if (handler(_US_VIRTUAL_UNWIND_FRAME | _US_FORCE_UNWIND, &ex, context) != + _URC_CONTINUE_UNWIND) { + return _URC_END_OF_STACK; + } #endif // defined(_LIBUNWIND_ARM_EHABI) - - // debugging - if (_LIBUNWIND_TRACING_UNWINDING) { - char functionName[512]; - unw_proc_info_t frame; - unw_word_t offset; + + // debugging + if (_LIBUNWIND_TRACING_UNWINDING) { + char functionName[512]; + unw_proc_info_t frame; + unw_word_t offset; __unw_get_proc_name(&cursor, functionName, 512, &offset); __unw_get_proc_info(&cursor, &frame); - _LIBUNWIND_TRACE_UNWINDING( + _LIBUNWIND_TRACE_UNWINDING( " _backtrace: start_ip=0x%" PRIxPTR ", func=%s, lsda=0x%" PRIxPTR ", context=%p", frame.start_ip, functionName, frame.lsda, - (void *)&cursor); - } - - // call trace function with this frame - result = (*callback)((struct _Unwind_Context *)(&cursor), ref); - if (result != _URC_NO_REASON) { - _LIBUNWIND_TRACE_UNWINDING( + (void *)&cursor); + } + + // call trace function with this frame + result = (*callback)((struct _Unwind_Context *)(&cursor), ref); + if (result != _URC_NO_REASON) { + _LIBUNWIND_TRACE_UNWINDING( " _backtrace: ended because callback returned %d", result); - return result; - } - } -} - - + return result; + } + } +} + + /// Find DWARF unwind info for an address 'pc' in some function. -_LIBUNWIND_EXPORT const void *_Unwind_Find_FDE(const void *pc, - struct dwarf_eh_bases *bases) { - // This is slow, but works. - // We create an unwind cursor then alter the IP to be pc - unw_cursor_t cursor; - unw_context_t uc; - unw_proc_info_t info; +_LIBUNWIND_EXPORT const void *_Unwind_Find_FDE(const void *pc, + struct dwarf_eh_bases *bases) { + // This is slow, but works. + // We create an unwind cursor then alter the IP to be pc + unw_cursor_t cursor; + unw_context_t uc; + unw_proc_info_t info; __unw_getcontext(&uc); __unw_init_local(&cursor, &uc); __unw_set_reg(&cursor, UNW_REG_IP, (unw_word_t)(intptr_t)pc); __unw_get_proc_info(&cursor, &info); - bases->tbase = (uintptr_t)info.extra; - bases->dbase = 0; // dbase not used on Mac OS X - bases->func = (uintptr_t)info.start_ip; + bases->tbase = (uintptr_t)info.extra; + bases->dbase = 0; // dbase not used on Mac OS X + bases->func = (uintptr_t)info.start_ip; _LIBUNWIND_TRACE_API("_Unwind_Find_FDE(pc=%p) => %p", pc, (void *)(intptr_t) info.unwind_info); return (void *)(intptr_t) info.unwind_info; -} - -/// Returns the CFA (call frame area, or stack pointer at start of function) -/// for the current context. -_LIBUNWIND_EXPORT uintptr_t _Unwind_GetCFA(struct _Unwind_Context *context) { - unw_cursor_t *cursor = (unw_cursor_t *)context; - unw_word_t result; +} + +/// Returns the CFA (call frame area, or stack pointer at start of function) +/// for the current context. +_LIBUNWIND_EXPORT uintptr_t _Unwind_GetCFA(struct _Unwind_Context *context) { + unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_word_t result; __unw_get_reg(cursor, UNW_REG_SP, &result); _LIBUNWIND_TRACE_API("_Unwind_GetCFA(context=%p) => 0x%" PRIxPTR, (void *)context, result); - return (uintptr_t)result; -} - - -/// Called by personality handler during phase 2 to get instruction pointer. -/// ipBefore is a boolean that says if IP is already adjusted to be the call -/// site address. Normally IP is the return address. -_LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context, - int *ipBefore) { + return (uintptr_t)result; +} + + +/// Called by personality handler during phase 2 to get instruction pointer. +/// ipBefore is a boolean that says if IP is already adjusted to be the call +/// site address. Normally IP is the return address. +_LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context, + int *ipBefore) { _LIBUNWIND_TRACE_API("_Unwind_GetIPInfo(context=%p)", (void *)context); int isSignalFrame = __unw_is_signal_frame((unw_cursor_t *)context); // Negative means some kind of error (probably UNW_ENOINFO), but we have no @@ -220,98 +220,98 @@ _LIBUNWIND_EXPORT uintptr_t _Unwind_GetIPInfo(struct _Unwind_Context *context, *ipBefore = 0; else *ipBefore = 1; - return _Unwind_GetIP(context); -} - + return _Unwind_GetIP(context); +} + #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - -/// Called by programs with dynamic code generators that want -/// to register a dynamically generated FDE. -/// This function has existed on Mac OS X since 10.4, but -/// was broken until 10.6. -_LIBUNWIND_EXPORT void __register_frame(const void *fde) { + +/// Called by programs with dynamic code generators that want +/// to register a dynamically generated FDE. +/// This function has existed on Mac OS X since 10.4, but +/// was broken until 10.6. +_LIBUNWIND_EXPORT void __register_frame(const void *fde) { _LIBUNWIND_TRACE_API("__register_frame(%p)", fde); __unw_add_dynamic_fde((unw_word_t)(uintptr_t)fde); -} - - -/// Called by programs with dynamic code generators that want -/// to unregister a dynamically generated FDE. -/// This function has existed on Mac OS X since 10.4, but -/// was broken until 10.6. -_LIBUNWIND_EXPORT void __deregister_frame(const void *fde) { +} + + +/// Called by programs with dynamic code generators that want +/// to unregister a dynamically generated FDE. +/// This function has existed on Mac OS X since 10.4, but +/// was broken until 10.6. +_LIBUNWIND_EXPORT void __deregister_frame(const void *fde) { _LIBUNWIND_TRACE_API("__deregister_frame(%p)", fde); __unw_remove_dynamic_fde((unw_word_t)(uintptr_t)fde); -} - - -// The following register/deregister functions are gcc extensions. -// They have existed on Mac OS X, but have never worked because Mac OS X -// before 10.6 used keymgr to track known FDEs, but these functions -// never got updated to use keymgr. -// For now, we implement these as do-nothing functions to keep any existing -// applications working. We also add the not in 10.6 symbol so that nwe -// application won't be able to use them. - +} + + +// The following register/deregister functions are gcc extensions. +// They have existed on Mac OS X, but have never worked because Mac OS X +// before 10.6 used keymgr to track known FDEs, but these functions +// never got updated to use keymgr. +// For now, we implement these as do-nothing functions to keep any existing +// applications working. We also add the not in 10.6 symbol so that nwe +// application won't be able to use them. + #if defined(_LIBUNWIND_SUPPORT_FRAME_APIS) -_LIBUNWIND_EXPORT void __register_frame_info_bases(const void *fde, void *ob, - void *tb, void *db) { - (void)fde; - (void)ob; - (void)tb; - (void)db; +_LIBUNWIND_EXPORT void __register_frame_info_bases(const void *fde, void *ob, + void *tb, void *db) { + (void)fde; + (void)ob; + (void)tb; + (void)db; _LIBUNWIND_TRACE_API("__register_frame_info_bases(%p,%p, %p, %p)", - fde, ob, tb, db); - // do nothing, this function never worked in Mac OS X -} - -_LIBUNWIND_EXPORT void __register_frame_info(const void *fde, void *ob) { - (void)fde; - (void)ob; + fde, ob, tb, db); + // do nothing, this function never worked in Mac OS X +} + +_LIBUNWIND_EXPORT void __register_frame_info(const void *fde, void *ob) { + (void)fde; + (void)ob; _LIBUNWIND_TRACE_API("__register_frame_info(%p, %p)", fde, ob); - // do nothing, this function never worked in Mac OS X -} - -_LIBUNWIND_EXPORT void __register_frame_info_table_bases(const void *fde, - void *ob, void *tb, - void *db) { - (void)fde; - (void)ob; - (void)tb; - (void)db; - _LIBUNWIND_TRACE_API("__register_frame_info_table_bases" + // do nothing, this function never worked in Mac OS X +} + +_LIBUNWIND_EXPORT void __register_frame_info_table_bases(const void *fde, + void *ob, void *tb, + void *db) { + (void)fde; + (void)ob; + (void)tb; + (void)db; + _LIBUNWIND_TRACE_API("__register_frame_info_table_bases" "(%p,%p, %p, %p)", fde, ob, tb, db); - // do nothing, this function never worked in Mac OS X -} - -_LIBUNWIND_EXPORT void __register_frame_info_table(const void *fde, void *ob) { - (void)fde; - (void)ob; + // do nothing, this function never worked in Mac OS X +} + +_LIBUNWIND_EXPORT void __register_frame_info_table(const void *fde, void *ob) { + (void)fde; + (void)ob; _LIBUNWIND_TRACE_API("__register_frame_info_table(%p, %p)", fde, ob); - // do nothing, this function never worked in Mac OS X -} - -_LIBUNWIND_EXPORT void __register_frame_table(const void *fde) { - (void)fde; + // do nothing, this function never worked in Mac OS X +} + +_LIBUNWIND_EXPORT void __register_frame_table(const void *fde) { + (void)fde; _LIBUNWIND_TRACE_API("__register_frame_table(%p)", fde); - // do nothing, this function never worked in Mac OS X -} - -_LIBUNWIND_EXPORT void *__deregister_frame_info(const void *fde) { - (void)fde; + // do nothing, this function never worked in Mac OS X +} + +_LIBUNWIND_EXPORT void *__deregister_frame_info(const void *fde) { + (void)fde; _LIBUNWIND_TRACE_API("__deregister_frame_info(%p)", fde); - // do nothing, this function never worked in Mac OS X - return NULL; -} - -_LIBUNWIND_EXPORT void *__deregister_frame_info_bases(const void *fde) { - (void)fde; + // do nothing, this function never worked in Mac OS X + return NULL; +} + +_LIBUNWIND_EXPORT void *__deregister_frame_info_bases(const void *fde) { + (void)fde; _LIBUNWIND_TRACE_API("__deregister_frame_info_bases(%p)", fde); - // do nothing, this function never worked in Mac OS X - return NULL; -} + // do nothing, this function never worked in Mac OS X + return NULL; +} #endif // defined(_LIBUNWIND_SUPPORT_FRAME_APIS) - + #endif // defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) - + #endif // defined(_LIBUNWIND_BUILD_ZERO_COST_APIS) diff --git a/contrib/libs/libunwind/src/UnwindLevel1.c b/contrib/libs/libunwind/src/UnwindLevel1.c index 82338e7d36..13ca17cc6a 100644 --- a/contrib/libs/libunwind/src/UnwindLevel1.c +++ b/contrib/libs/libunwind/src/UnwindLevel1.c @@ -1,38 +1,38 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Implements C++ ABI Exception Handling Level 1 as documented at: +// +// +// Implements C++ ABI Exception Handling Level 1 as documented at: // https://itanium-cxx-abi.github.io/cxx-abi/abi-eh.html -// using libunwind -// -//===----------------------------------------------------------------------===// - -// ARM EHABI does not specify _Unwind_{Get,Set}{GR,IP}(). Thus, we are -// defining inline functions to delegate the function calls to -// _Unwind_VRS_{Get,Set}(). However, some applications might declare the -// function protetype directly (instead of including <unwind.h>), thus we need -// to export these functions from libunwind.so as well. -#define _LIBUNWIND_UNWIND_LEVEL1_EXTERNAL_LINKAGE 1 - -#include <inttypes.h> -#include <stdint.h> -#include <stdbool.h> -#include <stdlib.h> -#include <stdio.h> -#include <string.h> - +// using libunwind +// +//===----------------------------------------------------------------------===// + +// ARM EHABI does not specify _Unwind_{Get,Set}{GR,IP}(). Thus, we are +// defining inline functions to delegate the function calls to +// _Unwind_VRS_{Get,Set}(). However, some applications might declare the +// function protetype directly (instead of including <unwind.h>), thus we need +// to export these functions from libunwind.so as well. +#define _LIBUNWIND_UNWIND_LEVEL1_EXTERNAL_LINKAGE 1 + +#include <inttypes.h> +#include <stdint.h> +#include <stdbool.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> + #include "cet_unwind.h" #include "config.h" -#include "libunwind.h" +#include "libunwind.h" #include "libunwind_ext.h" -#include "unwind.h" - +#include "unwind.h" + #if !defined(_LIBUNWIND_ARM_EHABI) && !defined(__USING_SJLJ_EXCEPTIONS__) - + #ifndef _LIBUNWIND_SUPPORT_SEH_UNWIND // When CET is enabled, each "call" instruction will push return address to @@ -67,10 +67,10 @@ } while (0) #endif -static _Unwind_Reason_Code +static _Unwind_Reason_Code unwind_phase1(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object) { __unw_init_local(cursor, uc); - + #ifdef _YNDX_LIBUNWIND_ENABLE_EXCEPTION_BACKTRACE _Unwind_Backtrace_Buffer* backtrace_buffer = exception_object->exception_class == _YNDX_LIBUNWIND_EXCEPTION_BACKTRACE_PRIMARY_CLASS || @@ -80,25 +80,25 @@ unwind_phase1(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *except : NULL; #endif - // Walk each frame looking for a place to stop. + // Walk each frame looking for a place to stop. while (true) { // Ask libunwind to get next frame (skip over first which is - // _Unwind_RaiseException). + // _Unwind_RaiseException). int stepResult = __unw_step(cursor); - if (stepResult == 0) { + if (stepResult == 0) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): __unw_step() reached " "bottom => _URC_END_OF_STACK", (void *)exception_object); - return _URC_END_OF_STACK; - } else if (stepResult < 0) { + return _URC_END_OF_STACK; + } else if (stepResult < 0) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): __unw_step failed => " "_URC_FATAL_PHASE1_ERROR", (void *)exception_object); - return _URC_FATAL_PHASE1_ERROR; - } - + return _URC_FATAL_PHASE1_ERROR; + } + #ifdef _YNDX_LIBUNWIND_ENABLE_EXCEPTION_BACKTRACE if (backtrace_buffer && backtrace_buffer->size < _YNDX_LIBUNWIND_EXCEPTION_BACKTRACE_SIZE) { unw_word_t pc; @@ -107,472 +107,472 @@ unwind_phase1(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *except } #endif - // See if frame has code to run (has personality routine). - unw_proc_info_t frameInfo; - unw_word_t sp; + // See if frame has code to run (has personality routine). + unw_proc_info_t frameInfo; + unw_word_t sp; if (__unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): __unw_get_proc_info " "failed => _URC_FATAL_PHASE1_ERROR", (void *)exception_object); - return _URC_FATAL_PHASE1_ERROR; - } - + return _URC_FATAL_PHASE1_ERROR; + } + #ifndef NDEBUG - // When tracing, print state information. - if (_LIBUNWIND_TRACING_UNWINDING) { - char functionBuf[512]; - const char *functionName = functionBuf; - unw_word_t offset; + // When tracing, print state information. + if (_LIBUNWIND_TRACING_UNWINDING) { + char functionBuf[512]; + const char *functionName = functionBuf; + unw_word_t offset; if ((__unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf), &offset) != UNW_ESUCCESS) || - (frameInfo.start_ip + offset > frameInfo.end_ip)) - functionName = ".anonymous."; - unw_word_t pc; + (frameInfo.start_ip + offset > frameInfo.end_ip)) + functionName = ".anonymous."; + unw_word_t pc; __unw_get_reg(cursor, UNW_REG_IP, &pc); - _LIBUNWIND_TRACE_UNWINDING( + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): pc=0x%" PRIxPTR ", start_ip=0x%" PRIxPTR ", func=%s, lsda=0x%" PRIxPTR ", personality=0x%" PRIxPTR "", - (void *)exception_object, pc, frameInfo.start_ip, functionName, - frameInfo.lsda, frameInfo.handler); - } + (void *)exception_object, pc, frameInfo.start_ip, functionName, + frameInfo.lsda, frameInfo.handler); + } #endif - - // If there is a personality routine, ask it if it will want to stop at - // this frame. - if (frameInfo.handler != 0) { + + // If there is a personality routine, ask it if it will want to stop at + // this frame. + if (frameInfo.handler != 0) { _Unwind_Personality_Fn p = (_Unwind_Personality_Fn)(uintptr_t)(frameInfo.handler); - _LIBUNWIND_TRACE_UNWINDING( + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): calling personality function %p", - (void *)exception_object, (void *)(uintptr_t)p); - _Unwind_Reason_Code personalityResult = - (*p)(1, _UA_SEARCH_PHASE, exception_object->exception_class, + (void *)exception_object, (void *)(uintptr_t)p); + _Unwind_Reason_Code personalityResult = + (*p)(1, _UA_SEARCH_PHASE, exception_object->exception_class, exception_object, (struct _Unwind_Context *)(cursor)); - switch (personalityResult) { - case _URC_HANDLER_FOUND: - // found a catch clause or locals that need destructing in this frame - // stop search and remember stack pointer at the frame + switch (personalityResult) { + case _URC_HANDLER_FOUND: + // found a catch clause or locals that need destructing in this frame + // stop search and remember stack pointer at the frame __unw_get_reg(cursor, UNW_REG_SP, &sp); - exception_object->private_2 = (uintptr_t)sp; - _LIBUNWIND_TRACE_UNWINDING( + exception_object->private_2 = (uintptr_t)sp; + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): _URC_HANDLER_FOUND", - (void *)exception_object); - return _URC_NO_REASON; - - case _URC_CONTINUE_UNWIND: - _LIBUNWIND_TRACE_UNWINDING( + (void *)exception_object); + return _URC_NO_REASON; + + case _URC_CONTINUE_UNWIND: + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): _URC_CONTINUE_UNWIND", - (void *)exception_object); - // continue unwinding - break; - - default: - // something went wrong - _LIBUNWIND_TRACE_UNWINDING( + (void *)exception_object); + // continue unwinding + break; + + default: + // something went wrong + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase1(ex_ojb=%p): _URC_FATAL_PHASE1_ERROR", - (void *)exception_object); - return _URC_FATAL_PHASE1_ERROR; - } - } - } - return _URC_NO_REASON; -} - - -static _Unwind_Reason_Code + (void *)exception_object); + return _URC_FATAL_PHASE1_ERROR; + } + } + } + return _URC_NO_REASON; +} + + +static _Unwind_Reason_Code unwind_phase2(unw_context_t *uc, unw_cursor_t *cursor, _Unwind_Exception *exception_object) { __unw_init_local(cursor, uc); - + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p)", - (void *)exception_object); - + (void *)exception_object); + // uc is initialized by __unw_getcontext in the parent frame. The first stack // frame walked is unwind_phase2. unsigned framesWalked = 1; - // Walk each frame until we reach where search phase said to stop. - while (true) { - + // Walk each frame until we reach where search phase said to stop. + while (true) { + // Ask libunwind to get next frame (skip over first which is - // _Unwind_RaiseException). + // _Unwind_RaiseException). int stepResult = __unw_step(cursor); - if (stepResult == 0) { + if (stepResult == 0) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): __unw_step() reached " "bottom => _URC_END_OF_STACK", (void *)exception_object); - return _URC_END_OF_STACK; - } else if (stepResult < 0) { + return _URC_END_OF_STACK; + } else if (stepResult < 0) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): __unw_step failed => " "_URC_FATAL_PHASE1_ERROR", (void *)exception_object); - return _URC_FATAL_PHASE2_ERROR; - } - - // Get info about this frame. - unw_word_t sp; - unw_proc_info_t frameInfo; + return _URC_FATAL_PHASE2_ERROR; + } + + // Get info about this frame. + unw_word_t sp; + unw_proc_info_t frameInfo; __unw_get_reg(cursor, UNW_REG_SP, &sp); if (__unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) { _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): __unw_get_proc_info " "failed => _URC_FATAL_PHASE1_ERROR", (void *)exception_object); - return _URC_FATAL_PHASE2_ERROR; - } - + return _URC_FATAL_PHASE2_ERROR; + } + #ifndef NDEBUG - // When tracing, print state information. - if (_LIBUNWIND_TRACING_UNWINDING) { - char functionBuf[512]; - const char *functionName = functionBuf; - unw_word_t offset; + // When tracing, print state information. + if (_LIBUNWIND_TRACING_UNWINDING) { + char functionBuf[512]; + const char *functionName = functionBuf; + unw_word_t offset; if ((__unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf), &offset) != UNW_ESUCCESS) || - (frameInfo.start_ip + offset > frameInfo.end_ip)) - functionName = ".anonymous."; + (frameInfo.start_ip + offset > frameInfo.end_ip)) + functionName = ".anonymous."; _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): start_ip=0x%" PRIxPTR ", func=%s, sp=0x%" PRIxPTR ", lsda=0x%" PRIxPTR ", personality=0x%" PRIxPTR, - (void *)exception_object, frameInfo.start_ip, - functionName, sp, frameInfo.lsda, - frameInfo.handler); - } + (void *)exception_object, frameInfo.start_ip, + functionName, sp, frameInfo.lsda, + frameInfo.handler); + } #endif - + ++framesWalked; - // If there is a personality routine, tell it we are unwinding. - if (frameInfo.handler != 0) { + // If there is a personality routine, tell it we are unwinding. + if (frameInfo.handler != 0) { _Unwind_Personality_Fn p = (_Unwind_Personality_Fn)(uintptr_t)(frameInfo.handler); - _Unwind_Action action = _UA_CLEANUP_PHASE; - if (sp == exception_object->private_2) { - // Tell personality this was the frame it marked in phase 1. - action = (_Unwind_Action)(_UA_CLEANUP_PHASE | _UA_HANDLER_FRAME); - } - _Unwind_Reason_Code personalityResult = - (*p)(1, action, exception_object->exception_class, exception_object, + _Unwind_Action action = _UA_CLEANUP_PHASE; + if (sp == exception_object->private_2) { + // Tell personality this was the frame it marked in phase 1. + action = (_Unwind_Action)(_UA_CLEANUP_PHASE | _UA_HANDLER_FRAME); + } + _Unwind_Reason_Code personalityResult = + (*p)(1, action, exception_object->exception_class, exception_object, (struct _Unwind_Context *)(cursor)); - switch (personalityResult) { - case _URC_CONTINUE_UNWIND: - // Continue unwinding - _LIBUNWIND_TRACE_UNWINDING( + switch (personalityResult) { + case _URC_CONTINUE_UNWIND: + // Continue unwinding + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): _URC_CONTINUE_UNWIND", - (void *)exception_object); - if (sp == exception_object->private_2) { - // Phase 1 said we would stop at this frame, but we did not... - _LIBUNWIND_ABORT("during phase1 personality function said it would " - "stop here, but now in phase2 it did not stop here"); - } - break; - case _URC_INSTALL_CONTEXT: - _LIBUNWIND_TRACE_UNWINDING( + (void *)exception_object); + if (sp == exception_object->private_2) { + // Phase 1 said we would stop at this frame, but we did not... + _LIBUNWIND_ABORT("during phase1 personality function said it would " + "stop here, but now in phase2 it did not stop here"); + } + break; + case _URC_INSTALL_CONTEXT: + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2(ex_ojb=%p): _URC_INSTALL_CONTEXT", - (void *)exception_object); - // Personality routine says to transfer control to landing pad. - // We may get control back if landing pad calls _Unwind_Resume(). - if (_LIBUNWIND_TRACING_UNWINDING) { - unw_word_t pc; + (void *)exception_object); + // Personality routine says to transfer control to landing pad. + // We may get control back if landing pad calls _Unwind_Resume(). + if (_LIBUNWIND_TRACING_UNWINDING) { + unw_word_t pc; __unw_get_reg(cursor, UNW_REG_IP, &pc); __unw_get_reg(cursor, UNW_REG_SP, &sp); - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): re-entering " + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2(ex_ojb=%p): re-entering " "user code with ip=0x%" PRIxPTR ", sp=0x%" PRIxPTR, - (void *)exception_object, pc, sp); - } + (void *)exception_object, pc, sp); + } __unw_phase2_resume(cursor, framesWalked); // __unw_phase2_resume() only returns if there was an error. - return _URC_FATAL_PHASE2_ERROR; - default: - // Personality routine returned an unknown result code. - _LIBUNWIND_DEBUG_LOG("personality function returned unknown result %d", - personalityResult); - return _URC_FATAL_PHASE2_ERROR; - } - } - } - - // Clean up phase did not resume at the frame that the search phase - // said it would... - return _URC_FATAL_PHASE2_ERROR; -} - -static _Unwind_Reason_Code + return _URC_FATAL_PHASE2_ERROR; + default: + // Personality routine returned an unknown result code. + _LIBUNWIND_DEBUG_LOG("personality function returned unknown result %d", + personalityResult); + return _URC_FATAL_PHASE2_ERROR; + } + } + } + + // Clean up phase did not resume at the frame that the search phase + // said it would... + return _URC_FATAL_PHASE2_ERROR; +} + +static _Unwind_Reason_Code unwind_phase2_forced(unw_context_t *uc, unw_cursor_t *cursor, - _Unwind_Exception *exception_object, - _Unwind_Stop_Fn stop, void *stop_parameter) { + _Unwind_Exception *exception_object, + _Unwind_Stop_Fn stop, void *stop_parameter) { __unw_init_local(cursor, uc); - + // uc is initialized by __unw_getcontext in the parent frame. The first stack // frame walked is unwind_phase2_forced. unsigned framesWalked = 1; - // Walk each frame until we reach where search phase said to stop + // Walk each frame until we reach where search phase said to stop while (__unw_step(cursor) > 0) { - - // Update info about this frame. - unw_proc_info_t frameInfo; + + // Update info about this frame. + unw_proc_info_t frameInfo; if (__unw_get_proc_info(cursor, &frameInfo) != UNW_ESUCCESS) { _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): __unw_step " "failed => _URC_END_OF_STACK", - (void *)exception_object); - return _URC_FATAL_PHASE2_ERROR; - } - + (void *)exception_object); + return _URC_FATAL_PHASE2_ERROR; + } + #ifndef NDEBUG - // When tracing, print state information. - if (_LIBUNWIND_TRACING_UNWINDING) { - char functionBuf[512]; - const char *functionName = functionBuf; - unw_word_t offset; + // When tracing, print state information. + if (_LIBUNWIND_TRACING_UNWINDING) { + char functionBuf[512]; + const char *functionName = functionBuf; + unw_word_t offset; if ((__unw_get_proc_name(cursor, functionBuf, sizeof(functionBuf), &offset) != UNW_ESUCCESS) || - (frameInfo.start_ip + offset > frameInfo.end_ip)) - functionName = ".anonymous."; - _LIBUNWIND_TRACE_UNWINDING( + (frameInfo.start_ip + offset > frameInfo.end_ip)) + functionName = ".anonymous."; + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2_forced(ex_ojb=%p): start_ip=0x%" PRIxPTR ", func=%s, lsda=0x%" PRIxPTR ", personality=0x%" PRIxPTR, - (void *)exception_object, frameInfo.start_ip, functionName, - frameInfo.lsda, frameInfo.handler); - } + (void *)exception_object, frameInfo.start_ip, functionName, + frameInfo.lsda, frameInfo.handler); + } #endif - - // Call stop function at each frame. - _Unwind_Action action = - (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE); - _Unwind_Reason_Code stopResult = - (*stop)(1, action, exception_object->exception_class, exception_object, + + // Call stop function at each frame. + _Unwind_Action action = + (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE); + _Unwind_Reason_Code stopResult = + (*stop)(1, action, exception_object->exception_class, exception_object, (struct _Unwind_Context *)(cursor), stop_parameter); - _LIBUNWIND_TRACE_UNWINDING( + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2_forced(ex_ojb=%p): stop function returned %d", - (void *)exception_object, stopResult); - if (stopResult != _URC_NO_REASON) { - _LIBUNWIND_TRACE_UNWINDING( + (void *)exception_object, stopResult); + if (stopResult != _URC_NO_REASON) { + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2_forced(ex_ojb=%p): stopped by stop function", - (void *)exception_object); - return _URC_FATAL_PHASE2_ERROR; - } - + (void *)exception_object); + return _URC_FATAL_PHASE2_ERROR; + } + ++framesWalked; - // If there is a personality routine, tell it we are unwinding. - if (frameInfo.handler != 0) { + // If there is a personality routine, tell it we are unwinding. + if (frameInfo.handler != 0) { _Unwind_Personality_Fn p = (_Unwind_Personality_Fn)(intptr_t)(frameInfo.handler); - _LIBUNWIND_TRACE_UNWINDING( + _LIBUNWIND_TRACE_UNWINDING( "unwind_phase2_forced(ex_ojb=%p): calling personality function %p", - (void *)exception_object, (void *)(uintptr_t)p); - _Unwind_Reason_Code personalityResult = - (*p)(1, action, exception_object->exception_class, exception_object, + (void *)exception_object, (void *)(uintptr_t)p); + _Unwind_Reason_Code personalityResult = + (*p)(1, action, exception_object->exception_class, exception_object, (struct _Unwind_Context *)(cursor)); - switch (personalityResult) { - case _URC_CONTINUE_UNWIND: - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " - "personality returned " + switch (personalityResult) { + case _URC_CONTINUE_UNWIND: + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + "personality returned " "_URC_CONTINUE_UNWIND", - (void *)exception_object); - // Destructors called, continue unwinding - break; - case _URC_INSTALL_CONTEXT: - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " - "personality returned " + (void *)exception_object); + // Destructors called, continue unwinding + break; + case _URC_INSTALL_CONTEXT: + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + "personality returned " "_URC_INSTALL_CONTEXT", - (void *)exception_object); - // We may get control back if landing pad calls _Unwind_Resume(). + (void *)exception_object); + // We may get control back if landing pad calls _Unwind_Resume(). __unw_phase2_resume(cursor, framesWalked); - break; - default: - // Personality routine returned an unknown result code. - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " - "personality returned %d, " + break; + default: + // Personality routine returned an unknown result code. + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): " + "personality returned %d, " "_URC_FATAL_PHASE2_ERROR", - (void *)exception_object, personalityResult); - return _URC_FATAL_PHASE2_ERROR; - } - } - } - - // Call stop function one last time and tell it we've reached the end - // of the stack. - _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): calling stop " + (void *)exception_object, personalityResult); + return _URC_FATAL_PHASE2_ERROR; + } + } + } + + // Call stop function one last time and tell it we've reached the end + // of the stack. + _LIBUNWIND_TRACE_UNWINDING("unwind_phase2_forced(ex_ojb=%p): calling stop " "function with _UA_END_OF_STACK", - (void *)exception_object); - _Unwind_Action lastAction = - (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE | _UA_END_OF_STACK); - (*stop)(1, lastAction, exception_object->exception_class, exception_object, + (void *)exception_object); + _Unwind_Action lastAction = + (_Unwind_Action)(_UA_FORCE_UNWIND | _UA_CLEANUP_PHASE | _UA_END_OF_STACK); + (*stop)(1, lastAction, exception_object->exception_class, exception_object, (struct _Unwind_Context *)(cursor), stop_parameter); - - // Clean up phase did not resume at the frame that the search phase said it - // would. - return _URC_FATAL_PHASE2_ERROR; -} - - -/// Called by __cxa_throw. Only returns if there is a fatal error. -_LIBUNWIND_EXPORT _Unwind_Reason_Code -_Unwind_RaiseException(_Unwind_Exception *exception_object) { + + // Clean up phase did not resume at the frame that the search phase said it + // would. + return _URC_FATAL_PHASE2_ERROR; +} + + +/// Called by __cxa_throw. Only returns if there is a fatal error. +_LIBUNWIND_EXPORT _Unwind_Reason_Code +_Unwind_RaiseException(_Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_RaiseException(ex_obj=%p)", - (void *)exception_object); - unw_context_t uc; + (void *)exception_object); + unw_context_t uc; unw_cursor_t cursor; __unw_getcontext(&uc); - - // Mark that this is a non-forced unwind, so _Unwind_Resume() - // can do the right thing. - exception_object->private_1 = 0; - exception_object->private_2 = 0; - - // phase 1: the search phase + + // Mark that this is a non-forced unwind, so _Unwind_Resume() + // can do the right thing. + exception_object->private_1 = 0; + exception_object->private_2 = 0; + + // phase 1: the search phase _Unwind_Reason_Code phase1 = unwind_phase1(&uc, &cursor, exception_object); - if (phase1 != _URC_NO_REASON) - return phase1; - - // phase 2: the clean up phase + if (phase1 != _URC_NO_REASON) + return phase1; + + // phase 2: the clean up phase return unwind_phase2(&uc, &cursor, exception_object); -} - - - -/// When _Unwind_RaiseException() is in phase2, it hands control -/// to the personality function at each frame. The personality -/// may force a jump to a landing pad in that function, the landing -/// pad code may then call _Unwind_Resume() to continue with the -/// unwinding. Note: the call to _Unwind_Resume() is from compiler -/// geneated user code. All other _Unwind_* routines are called -/// by the C++ runtime __cxa_* routines. -/// -/// Note: re-throwing an exception (as opposed to continuing the unwind) -/// is implemented by having the code call __cxa_rethrow() which -/// in turn calls _Unwind_Resume_or_Rethrow(). -_LIBUNWIND_EXPORT void -_Unwind_Resume(_Unwind_Exception *exception_object) { +} + + + +/// When _Unwind_RaiseException() is in phase2, it hands control +/// to the personality function at each frame. The personality +/// may force a jump to a landing pad in that function, the landing +/// pad code may then call _Unwind_Resume() to continue with the +/// unwinding. Note: the call to _Unwind_Resume() is from compiler +/// geneated user code. All other _Unwind_* routines are called +/// by the C++ runtime __cxa_* routines. +/// +/// Note: re-throwing an exception (as opposed to continuing the unwind) +/// is implemented by having the code call __cxa_rethrow() which +/// in turn calls _Unwind_Resume_or_Rethrow(). +_LIBUNWIND_EXPORT void +_Unwind_Resume(_Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_Resume(ex_obj=%p)", (void *)exception_object); - unw_context_t uc; + unw_context_t uc; unw_cursor_t cursor; __unw_getcontext(&uc); - - if (exception_object->private_1 != 0) + + if (exception_object->private_1 != 0) unwind_phase2_forced(&uc, &cursor, exception_object, - (_Unwind_Stop_Fn) exception_object->private_1, - (void *)exception_object->private_2); - else + (_Unwind_Stop_Fn) exception_object->private_1, + (void *)exception_object->private_2); + else unwind_phase2(&uc, &cursor, exception_object); - - // Clients assume _Unwind_Resume() does not return, so all we can do is abort. - _LIBUNWIND_ABORT("_Unwind_Resume() can't return"); -} - - - -/// Not used by C++. -/// Unwinds stack, calling "stop" function at each frame. -/// Could be used to implement longjmp(). -_LIBUNWIND_EXPORT _Unwind_Reason_Code -_Unwind_ForcedUnwind(_Unwind_Exception *exception_object, - _Unwind_Stop_Fn stop, void *stop_parameter) { + + // Clients assume _Unwind_Resume() does not return, so all we can do is abort. + _LIBUNWIND_ABORT("_Unwind_Resume() can't return"); +} + + + +/// Not used by C++. +/// Unwinds stack, calling "stop" function at each frame. +/// Could be used to implement longjmp(). +_LIBUNWIND_EXPORT _Unwind_Reason_Code +_Unwind_ForcedUnwind(_Unwind_Exception *exception_object, + _Unwind_Stop_Fn stop, void *stop_parameter) { _LIBUNWIND_TRACE_API("_Unwind_ForcedUnwind(ex_obj=%p, stop=%p)", - (void *)exception_object, (void *)(uintptr_t)stop); - unw_context_t uc; + (void *)exception_object, (void *)(uintptr_t)stop); + unw_context_t uc; unw_cursor_t cursor; __unw_getcontext(&uc); - - // Mark that this is a forced unwind, so _Unwind_Resume() can do - // the right thing. - exception_object->private_1 = (uintptr_t) stop; - exception_object->private_2 = (uintptr_t) stop_parameter; - - // do it + + // Mark that this is a forced unwind, so _Unwind_Resume() can do + // the right thing. + exception_object->private_1 = (uintptr_t) stop; + exception_object->private_2 = (uintptr_t) stop_parameter; + + // do it return unwind_phase2_forced(&uc, &cursor, exception_object, stop, stop_parameter); -} - - -/// Called by personality handler during phase 2 to get LSDA for current frame. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) { - unw_cursor_t *cursor = (unw_cursor_t *)context; - unw_proc_info_t frameInfo; - uintptr_t result = 0; +} + + +/// Called by personality handler during phase 2 to get LSDA for current frame. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetLanguageSpecificData(struct _Unwind_Context *context) { + unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_proc_info_t frameInfo; + uintptr_t result = 0; if (__unw_get_proc_info(cursor, &frameInfo) == UNW_ESUCCESS) - result = (uintptr_t)frameInfo.lsda; - _LIBUNWIND_TRACE_API( + result = (uintptr_t)frameInfo.lsda; + _LIBUNWIND_TRACE_API( "_Unwind_GetLanguageSpecificData(context=%p) => 0x%" PRIxPTR, - (void *)context, result); - if (result != 0) { - if (*((uint8_t *)result) != 0xFF) + (void *)context, result); + if (result != 0) { + if (*((uint8_t *)result) != 0xFF) _LIBUNWIND_DEBUG_LOG("lsda at 0x%" PRIxPTR " does not start with 0xFF", - result); - } - return result; -} - - -/// Called by personality handler during phase 2 to find the start of the -/// function. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetRegionStart(struct _Unwind_Context *context) { - unw_cursor_t *cursor = (unw_cursor_t *)context; - unw_proc_info_t frameInfo; - uintptr_t result = 0; + result); + } + return result; +} + + +/// Called by personality handler during phase 2 to find the start of the +/// function. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetRegionStart(struct _Unwind_Context *context) { + unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_proc_info_t frameInfo; + uintptr_t result = 0; if (__unw_get_proc_info(cursor, &frameInfo) == UNW_ESUCCESS) - result = (uintptr_t)frameInfo.start_ip; + result = (uintptr_t)frameInfo.start_ip; _LIBUNWIND_TRACE_API("_Unwind_GetRegionStart(context=%p) => 0x%" PRIxPTR, - (void *)context, result); - return result; -} - + (void *)context, result); + return result; +} + #endif // !_LIBUNWIND_SUPPORT_SEH_UNWIND - -/// Called by personality handler during phase 2 if a foreign exception -// is caught. -_LIBUNWIND_EXPORT void -_Unwind_DeleteException(_Unwind_Exception *exception_object) { + +/// Called by personality handler during phase 2 if a foreign exception +// is caught. +_LIBUNWIND_EXPORT void +_Unwind_DeleteException(_Unwind_Exception *exception_object) { _LIBUNWIND_TRACE_API("_Unwind_DeleteException(ex_obj=%p)", - (void *)exception_object); - if (exception_object->exception_cleanup != NULL) - (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT, - exception_object); -} - -/// Called by personality handler during phase 2 to get register values. -_LIBUNWIND_EXPORT uintptr_t -_Unwind_GetGR(struct _Unwind_Context *context, int index) { - unw_cursor_t *cursor = (unw_cursor_t *)context; - unw_word_t result; + (void *)exception_object); + if (exception_object->exception_cleanup != NULL) + (*exception_object->exception_cleanup)(_URC_FOREIGN_EXCEPTION_CAUGHT, + exception_object); +} + +/// Called by personality handler during phase 2 to get register values. +_LIBUNWIND_EXPORT uintptr_t +_Unwind_GetGR(struct _Unwind_Context *context, int index) { + unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_word_t result; __unw_get_reg(cursor, index, &result); _LIBUNWIND_TRACE_API("_Unwind_GetGR(context=%p, reg=%d) => 0x%" PRIxPTR, (void *)context, index, result); - return (uintptr_t)result; -} - -/// Called by personality handler during phase 2 to alter register values. -_LIBUNWIND_EXPORT void _Unwind_SetGR(struct _Unwind_Context *context, int index, - uintptr_t value) { + return (uintptr_t)result; +} + +/// Called by personality handler during phase 2 to alter register values. +_LIBUNWIND_EXPORT void _Unwind_SetGR(struct _Unwind_Context *context, int index, + uintptr_t value) { _LIBUNWIND_TRACE_API("_Unwind_SetGR(context=%p, reg=%d, value=0x%0" PRIxPTR ")", (void *)context, index, value); - unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_cursor_t *cursor = (unw_cursor_t *)context; __unw_set_reg(cursor, index, value); -} - -/// Called by personality handler during phase 2 to get instruction pointer. -_LIBUNWIND_EXPORT uintptr_t _Unwind_GetIP(struct _Unwind_Context *context) { - unw_cursor_t *cursor = (unw_cursor_t *)context; - unw_word_t result; +} + +/// Called by personality handler during phase 2 to get instruction pointer. +_LIBUNWIND_EXPORT uintptr_t _Unwind_GetIP(struct _Unwind_Context *context) { + unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_word_t result; __unw_get_reg(cursor, UNW_REG_IP, &result); _LIBUNWIND_TRACE_API("_Unwind_GetIP(context=%p) => 0x%" PRIxPTR, (void *)context, result); - return (uintptr_t)result; -} - -/// Called by personality handler during phase 2 to alter instruction pointer, -/// such as setting where the landing pad is, so _Unwind_Resume() will -/// start executing in the landing pad. -_LIBUNWIND_EXPORT void _Unwind_SetIP(struct _Unwind_Context *context, - uintptr_t value) { + return (uintptr_t)result; +} + +/// Called by personality handler during phase 2 to alter instruction pointer, +/// such as setting where the landing pad is, so _Unwind_Resume() will +/// start executing in the landing pad. +_LIBUNWIND_EXPORT void _Unwind_SetIP(struct _Unwind_Context *context, + uintptr_t value) { _LIBUNWIND_TRACE_API("_Unwind_SetIP(context=%p, value=0x%0" PRIxPTR ")", (void *)context, value); - unw_cursor_t *cursor = (unw_cursor_t *)context; + unw_cursor_t *cursor = (unw_cursor_t *)context; __unw_set_reg(cursor, UNW_REG_IP, value); -} - +} + #endif // !defined(_LIBUNWIND_ARM_EHABI) && !defined(__USING_SJLJ_EXCEPTIONS__) diff --git a/contrib/libs/libunwind/src/UnwindRegistersRestore.S b/contrib/libs/libunwind/src/UnwindRegistersRestore.S index 0c10e2b0e4..1df97f5fc4 100644 --- a/contrib/libs/libunwind/src/UnwindRegistersRestore.S +++ b/contrib/libs/libunwind/src/UnwindRegistersRestore.S @@ -1,67 +1,67 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#include "assembly.h" - - .text - +// +//===----------------------------------------------------------------------===// + +#include "assembly.h" + + .text + #if !defined(__USING_SJLJ_EXCEPTIONS__) -#if defined(__i386__) +#if defined(__i386__) DEFINE_LIBUNWIND_FUNCTION(__libunwind_Registers_x86_jumpto) -# +# # extern "C" void __libunwind_Registers_x86_jumpto(Registers_x86 *); -# -# On entry: -# + + -# +-----------------------+ -# + thread_state pointer + -# +-----------------------+ -# + return address + -# +-----------------------+ <-- SP -# + + +# +# On entry: +# + + +# +-----------------------+ +# + thread_state pointer + +# +-----------------------+ +# + return address + +# +-----------------------+ <-- SP +# + + _LIBUNWIND_CET_ENDBR - movl 4(%esp), %eax - # set up eax and ret on new stack location - movl 28(%eax), %edx # edx holds new stack pointer - subl $8,%edx - movl %edx, 28(%eax) - movl 0(%eax), %ebx - movl %ebx, 0(%edx) - movl 40(%eax), %ebx - movl %ebx, 4(%edx) - # we now have ret and eax pushed onto where new stack will be - # restore all registers - movl 4(%eax), %ebx - movl 8(%eax), %ecx - movl 12(%eax), %edx - movl 16(%eax), %edi - movl 20(%eax), %esi - movl 24(%eax), %ebp - movl 28(%eax), %esp - # skip ss - # skip eflags - pop %eax # eax was already pushed on new stack + movl 4(%esp), %eax + # set up eax and ret on new stack location + movl 28(%eax), %edx # edx holds new stack pointer + subl $8,%edx + movl %edx, 28(%eax) + movl 0(%eax), %ebx + movl %ebx, 0(%edx) + movl 40(%eax), %ebx + movl %ebx, 4(%edx) + # we now have ret and eax pushed onto where new stack will be + # restore all registers + movl 4(%eax), %ebx + movl 8(%eax), %ecx + movl 12(%eax), %edx + movl 16(%eax), %edi + movl 20(%eax), %esi + movl 24(%eax), %ebp + movl 28(%eax), %esp + # skip ss + # skip eflags + pop %eax # eax was already pushed on new stack pop %ecx jmp *%ecx - # skip cs - # skip ds - # skip es - # skip fs - # skip gs - -#elif defined(__x86_64__) - + # skip cs + # skip ds + # skip es + # skip fs + # skip gs + +#elif defined(__x86_64__) + DEFINE_LIBUNWIND_FUNCTION(__libunwind_Registers_x86_64_jumpto) -# +# # extern "C" void __libunwind_Registers_x86_64_jumpto(Registers_x86_64 *); -# +# #if defined(_WIN64) # On entry, thread_state pointer is in rcx; move it into rdi # to share restore code below. Since this routine restores and @@ -70,38 +70,38 @@ DEFINE_LIBUNWIND_FUNCTION(__libunwind_Registers_x86_64_jumpto) # mustn't clobber some of them. movq %rcx, %rdi #else -# On entry, thread_state pointer is in rdi +# On entry, thread_state pointer is in rdi #endif - + _LIBUNWIND_CET_ENDBR - movq 56(%rdi), %rax # rax holds new stack pointer - subq $16, %rax - movq %rax, 56(%rdi) - movq 32(%rdi), %rbx # store new rdi on new stack - movq %rbx, 0(%rax) - movq 128(%rdi), %rbx # store new rip on new stack - movq %rbx, 8(%rax) - # restore all registers - movq 0(%rdi), %rax - movq 8(%rdi), %rbx - movq 16(%rdi), %rcx - movq 24(%rdi), %rdx - # restore rdi later - movq 40(%rdi), %rsi - movq 48(%rdi), %rbp - # restore rsp later - movq 64(%rdi), %r8 - movq 72(%rdi), %r9 - movq 80(%rdi), %r10 - movq 88(%rdi), %r11 - movq 96(%rdi), %r12 - movq 104(%rdi), %r13 - movq 112(%rdi), %r14 - movq 120(%rdi), %r15 - # skip rflags - # skip cs - # skip fs - # skip gs + movq 56(%rdi), %rax # rax holds new stack pointer + subq $16, %rax + movq %rax, 56(%rdi) + movq 32(%rdi), %rbx # store new rdi on new stack + movq %rbx, 0(%rax) + movq 128(%rdi), %rbx # store new rip on new stack + movq %rbx, 8(%rax) + # restore all registers + movq 0(%rdi), %rax + movq 8(%rdi), %rbx + movq 16(%rdi), %rcx + movq 24(%rdi), %rdx + # restore rdi later + movq 40(%rdi), %rsi + movq 48(%rdi), %rbp + # restore rsp later + movq 64(%rdi), %r8 + movq 72(%rdi), %r9 + movq 80(%rdi), %r10 + movq 88(%rdi), %r11 + movq 96(%rdi), %r12 + movq 104(%rdi), %r13 + movq 112(%rdi), %r14 + movq 120(%rdi), %r15 + # skip rflags + # skip cs + # skip fs + # skip gs #if defined(_WIN64) movdqu 176(%rdi),%xmm0 @@ -121,12 +121,12 @@ DEFINE_LIBUNWIND_FUNCTION(__libunwind_Registers_x86_64_jumpto) movdqu 400(%rdi),%xmm14 movdqu 416(%rdi),%xmm15 #endif - movq 56(%rdi), %rsp # cut back rsp to new location - pop %rdi # rdi was saved here earlier + movq 56(%rdi), %rsp # cut back rsp to new location + pop %rdi # rdi was saved here earlier pop %rcx jmpq *%rcx - - + + #elif defined(__powerpc64__) DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind15Registers_ppc646jumptoEv) @@ -395,7 +395,7 @@ Lnovec: bctr #elif defined(__powerpc__) - + DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv) // // void libunwind::Registers_ppc::jumpto() @@ -403,7 +403,7 @@ DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv) // On entry: // thread_state pointer is in r3 // - + // restore integral registerrs // skip r0 for now // skip r1 for now @@ -437,7 +437,7 @@ DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv) lwz 29,124(3) lwz 30,128(3) lwz 31,132(3) - + #ifndef __NO_FPRS__ // restore float registers lfd 0, 160(3) @@ -473,18 +473,18 @@ DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv) lfd 30,400(3) lfd 31,408(3) #endif - + #if defined(__ALTIVEC__) // restore vector registers if any are in use lwz 5, 156(3) // test VRsave cmpwi 5, 0 beq Lnovec - + subi 4, 1, 16 rlwinm 4, 4, 0, 0, 27 // mask low 4-bits // r4 is now a 16-byte aligned pointer into the red zone // the _vectorRegisters may not be 16-byte aligned so copy via red zone temp buffer - + #define LOAD_VECTOR_UNALIGNEDl(_index) \ andis. 0, 5, (1 PPC_LEFT_SHIFT(15-_index)) SEPARATOR \ @@ -499,7 +499,7 @@ DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv) stw 0, 12(%r4) SEPARATOR \ lvx _index, 0, 4 SEPARATOR \ Ldone ## _index: - + #define LOAD_VECTOR_UNALIGNEDh(_index) \ andi. 0, 5, (1 PPC_LEFT_SHIFT(31-_index)) SEPARATOR \ beq Ldone ## _index SEPARATOR \ @@ -513,43 +513,43 @@ DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_ppc6jumptoEv) stw 0, 12(4) SEPARATOR \ lvx _index, 0, 4 SEPARATOR \ Ldone ## _index: - - - LOAD_VECTOR_UNALIGNEDl(0) - LOAD_VECTOR_UNALIGNEDl(1) - LOAD_VECTOR_UNALIGNEDl(2) - LOAD_VECTOR_UNALIGNEDl(3) - LOAD_VECTOR_UNALIGNEDl(4) - LOAD_VECTOR_UNALIGNEDl(5) - LOAD_VECTOR_UNALIGNEDl(6) - LOAD_VECTOR_UNALIGNEDl(7) - LOAD_VECTOR_UNALIGNEDl(8) - LOAD_VECTOR_UNALIGNEDl(9) - LOAD_VECTOR_UNALIGNEDl(10) - LOAD_VECTOR_UNALIGNEDl(11) - LOAD_VECTOR_UNALIGNEDl(12) - LOAD_VECTOR_UNALIGNEDl(13) - LOAD_VECTOR_UNALIGNEDl(14) - LOAD_VECTOR_UNALIGNEDl(15) - LOAD_VECTOR_UNALIGNEDh(16) - LOAD_VECTOR_UNALIGNEDh(17) - LOAD_VECTOR_UNALIGNEDh(18) - LOAD_VECTOR_UNALIGNEDh(19) - LOAD_VECTOR_UNALIGNEDh(20) - LOAD_VECTOR_UNALIGNEDh(21) - LOAD_VECTOR_UNALIGNEDh(22) - LOAD_VECTOR_UNALIGNEDh(23) - LOAD_VECTOR_UNALIGNEDh(24) - LOAD_VECTOR_UNALIGNEDh(25) - LOAD_VECTOR_UNALIGNEDh(26) - LOAD_VECTOR_UNALIGNEDh(27) - LOAD_VECTOR_UNALIGNEDh(28) - LOAD_VECTOR_UNALIGNEDh(29) - LOAD_VECTOR_UNALIGNEDh(30) - LOAD_VECTOR_UNALIGNEDh(31) + + + LOAD_VECTOR_UNALIGNEDl(0) + LOAD_VECTOR_UNALIGNEDl(1) + LOAD_VECTOR_UNALIGNEDl(2) + LOAD_VECTOR_UNALIGNEDl(3) + LOAD_VECTOR_UNALIGNEDl(4) + LOAD_VECTOR_UNALIGNEDl(5) + LOAD_VECTOR_UNALIGNEDl(6) + LOAD_VECTOR_UNALIGNEDl(7) + LOAD_VECTOR_UNALIGNEDl(8) + LOAD_VECTOR_UNALIGNEDl(9) + LOAD_VECTOR_UNALIGNEDl(10) + LOAD_VECTOR_UNALIGNEDl(11) + LOAD_VECTOR_UNALIGNEDl(12) + LOAD_VECTOR_UNALIGNEDl(13) + LOAD_VECTOR_UNALIGNEDl(14) + LOAD_VECTOR_UNALIGNEDl(15) + LOAD_VECTOR_UNALIGNEDh(16) + LOAD_VECTOR_UNALIGNEDh(17) + LOAD_VECTOR_UNALIGNEDh(18) + LOAD_VECTOR_UNALIGNEDh(19) + LOAD_VECTOR_UNALIGNEDh(20) + LOAD_VECTOR_UNALIGNEDh(21) + LOAD_VECTOR_UNALIGNEDh(22) + LOAD_VECTOR_UNALIGNEDh(23) + LOAD_VECTOR_UNALIGNEDh(24) + LOAD_VECTOR_UNALIGNEDh(25) + LOAD_VECTOR_UNALIGNEDh(26) + LOAD_VECTOR_UNALIGNEDh(27) + LOAD_VECTOR_UNALIGNEDh(28) + LOAD_VECTOR_UNALIGNEDh(29) + LOAD_VECTOR_UNALIGNEDh(30) + LOAD_VECTOR_UNALIGNEDh(31) #endif - -Lnovec: + +Lnovec: lwz 0, 136(3) // __cr mtcr 0 lwz 0, 148(3) // __ctr @@ -561,79 +561,79 @@ Lnovec: lwz 4, 24(3) // do r4 now lwz 1, 12(3) // do sp now lwz 3, 20(3) // do r3 last - bctr - + bctr + #elif defined(__aarch64__) - -// + +// // extern "C" void __libunwind_Registers_arm64_jumpto(Registers_arm64 *); -// -// On entry: -// thread_state pointer is in x0 -// - .p2align 2 +// +// On entry: +// thread_state pointer is in x0 +// + .p2align 2 DEFINE_LIBUNWIND_FUNCTION(__libunwind_Registers_arm64_jumpto) - // skip restore of x0,x1 for now - ldp x2, x3, [x0, #0x010] - ldp x4, x5, [x0, #0x020] - ldp x6, x7, [x0, #0x030] - ldp x8, x9, [x0, #0x040] - ldp x10,x11, [x0, #0x050] - ldp x12,x13, [x0, #0x060] - ldp x14,x15, [x0, #0x070] + // skip restore of x0,x1 for now + ldp x2, x3, [x0, #0x010] + ldp x4, x5, [x0, #0x020] + ldp x6, x7, [x0, #0x030] + ldp x8, x9, [x0, #0x040] + ldp x10,x11, [x0, #0x050] + ldp x12,x13, [x0, #0x060] + ldp x14,x15, [x0, #0x070] // x16 and x17 were clobbered by the call into the unwinder, so no point in // restoring them. - ldp x18,x19, [x0, #0x090] - ldp x20,x21, [x0, #0x0A0] - ldp x22,x23, [x0, #0x0B0] - ldp x24,x25, [x0, #0x0C0] - ldp x26,x27, [x0, #0x0D0] + ldp x18,x19, [x0, #0x090] + ldp x20,x21, [x0, #0x0A0] + ldp x22,x23, [x0, #0x0B0] + ldp x24,x25, [x0, #0x0C0] + ldp x26,x27, [x0, #0x0D0] ldp x28,x29, [x0, #0x0E0] ldr x30, [x0, #0x100] // restore pc into lr - - ldp d0, d1, [x0, #0x110] - ldp d2, d3, [x0, #0x120] - ldp d4, d5, [x0, #0x130] - ldp d6, d7, [x0, #0x140] - ldp d8, d9, [x0, #0x150] - ldp d10,d11, [x0, #0x160] - ldp d12,d13, [x0, #0x170] - ldp d14,d15, [x0, #0x180] - ldp d16,d17, [x0, #0x190] - ldp d18,d19, [x0, #0x1A0] - ldp d20,d21, [x0, #0x1B0] - ldp d22,d23, [x0, #0x1C0] - ldp d24,d25, [x0, #0x1D0] - ldp d26,d27, [x0, #0x1E0] - ldp d28,d29, [x0, #0x1F0] - ldr d30, [x0, #0x200] - ldr d31, [x0, #0x208] - + + ldp d0, d1, [x0, #0x110] + ldp d2, d3, [x0, #0x120] + ldp d4, d5, [x0, #0x130] + ldp d6, d7, [x0, #0x140] + ldp d8, d9, [x0, #0x150] + ldp d10,d11, [x0, #0x160] + ldp d12,d13, [x0, #0x170] + ldp d14,d15, [x0, #0x180] + ldp d16,d17, [x0, #0x190] + ldp d18,d19, [x0, #0x1A0] + ldp d20,d21, [x0, #0x1B0] + ldp d22,d23, [x0, #0x1C0] + ldp d24,d25, [x0, #0x1D0] + ldp d26,d27, [x0, #0x1E0] + ldp d28,d29, [x0, #0x1F0] + ldr d30, [x0, #0x200] + ldr d31, [x0, #0x208] + // Finally, restore sp. This must be done after the the last read from the // context struct, because it is allocated on the stack, and an exception // could clobber the de-allocated portion of the stack after sp has been // restored. ldr x16, [x0, #0x0F8] - ldp x0, x1, [x0, #0x000] // restore x0,x1 + ldp x0, x1, [x0, #0x000] // restore x0,x1 mov sp,x16 // restore sp ret x30 // jump to pc - -#elif defined(__arm__) && !defined(__APPLE__) - -#if !defined(__ARM_ARCH_ISA_ARM) + +#elif defined(__arm__) && !defined(__APPLE__) + +#if !defined(__ARM_ARCH_ISA_ARM) #if (__ARM_ARCH_ISA_THUMB == 2) .syntax unified #endif - .thumb -#endif - -@ -@ void libunwind::Registers_arm::restoreCoreAndJumpTo() -@ -@ On entry: -@ thread_state pointer is in r0 -@ - .p2align 2 + .thumb +#endif + +@ +@ void libunwind::Registers_arm::restoreCoreAndJumpTo() +@ +@ On entry: +@ thread_state pointer is in r0 +@ + .p2align 2 DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm20restoreCoreAndJumpToEv) #if !defined(__ARM_ARCH_ISA_ARM) && __ARM_ARCH_ISA_THUMB == 1 @ r8-r11: ldm into r1-r4, then mov to r8-r11 @@ -647,180 +647,180 @@ DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm20restoreCoreAndJumpToEv) @ r12 does not need loading, it it the intra-procedure-call scratch register ldr r2, [r0, #0x34] ldr r3, [r0, #0x3c] - mov sp, r2 - mov lr, r3 @ restore pc into lr - ldm r0, {r0-r7} -#else - @ Use lr as base so that r0 can be restored. - mov lr, r0 - @ 32bit thumb-2 restrictions for ldm: - @ . the sp (r13) cannot be in the list - @ . the pc (r15) and lr (r14) cannot both be in the list in an LDM instruction - ldm lr, {r0-r12} - ldr sp, [lr, #52] - ldr lr, [lr, #60] @ restore pc into lr -#endif + mov sp, r2 + mov lr, r3 @ restore pc into lr + ldm r0, {r0-r7} +#else + @ Use lr as base so that r0 can be restored. + mov lr, r0 + @ 32bit thumb-2 restrictions for ldm: + @ . the sp (r13) cannot be in the list + @ . the pc (r15) and lr (r14) cannot both be in the list in an LDM instruction + ldm lr, {r0-r12} + ldr sp, [lr, #52] + ldr lr, [lr, #60] @ restore pc into lr +#endif #if defined(__ARM_FEATURE_BTI_DEFAULT) && !defined(__ARM_ARCH_ISA_ARM) // 'bx' is not BTI setting when used with lr, therefore r12 is used instead mov r12, lr JMP(r12) #else - JMP(lr) + JMP(lr) #endif - -@ -@ static void libunwind::Registers_arm::restoreVFPWithFLDMD(unw_fpreg_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 + +@ +@ static void libunwind::Registers_arm::restoreVFPWithFLDMD(unw_fpreg_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) - .fpu vfpv3-d16 + .fpu vfpv3-d16 #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm19restoreVFPWithFLDMDEPv) - @ VFP and iwMMX instructions are only available when compiling with the flags - @ that enable them. We do not want to do that in the library (because we do not - @ want the compiler to generate instructions that access those) but this is - @ only accessed if the personality routine needs these registers. Use of - @ these registers implies they are, actually, available on the target, so - @ it's ok to execute. - @ So, generate the instruction using the corresponding coprocessor mnemonic. - vldmia r0, {d0-d15} - JMP(lr) - -@ -@ static void libunwind::Registers_arm::restoreVFPWithFLDMX(unw_fpreg_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 + @ VFP and iwMMX instructions are only available when compiling with the flags + @ that enable them. We do not want to do that in the library (because we do not + @ want the compiler to generate instructions that access those) but this is + @ only accessed if the personality routine needs these registers. Use of + @ these registers implies they are, actually, available on the target, so + @ it's ok to execute. + @ So, generate the instruction using the corresponding coprocessor mnemonic. + vldmia r0, {d0-d15} + JMP(lr) + +@ +@ static void libunwind::Registers_arm::restoreVFPWithFLDMX(unw_fpreg_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) - .fpu vfpv3-d16 + .fpu vfpv3-d16 #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm19restoreVFPWithFLDMXEPv) - vldmia r0, {d0-d15} @ fldmiax is deprecated in ARMv7+ and now behaves like vldmia - JMP(lr) - -@ -@ static void libunwind::Registers_arm::restoreVFPv3(unw_fpreg_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 + vldmia r0, {d0-d15} @ fldmiax is deprecated in ARMv7+ and now behaves like vldmia + JMP(lr) + +@ +@ static void libunwind::Registers_arm::restoreVFPv3(unw_fpreg_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) - .fpu vfpv3 + .fpu vfpv3 #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm12restoreVFPv3EPv) - vldmia r0, {d16-d31} - JMP(lr) - + vldmia r0, {d16-d31} + JMP(lr) + #if defined(__ARM_WMMX) -@ -@ static void libunwind::Registers_arm::restoreiWMMX(unw_fpreg_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 +@ +@ static void libunwind::Registers_arm::restoreiWMMX(unw_fpreg_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) .arch armv5te #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm12restoreiWMMXEPv) - ldcl p1, cr0, [r0], #8 @ wldrd wR0, [r0], #8 - ldcl p1, cr1, [r0], #8 @ wldrd wR1, [r0], #8 - ldcl p1, cr2, [r0], #8 @ wldrd wR2, [r0], #8 - ldcl p1, cr3, [r0], #8 @ wldrd wR3, [r0], #8 - ldcl p1, cr4, [r0], #8 @ wldrd wR4, [r0], #8 - ldcl p1, cr5, [r0], #8 @ wldrd wR5, [r0], #8 - ldcl p1, cr6, [r0], #8 @ wldrd wR6, [r0], #8 - ldcl p1, cr7, [r0], #8 @ wldrd wR7, [r0], #8 - ldcl p1, cr8, [r0], #8 @ wldrd wR8, [r0], #8 - ldcl p1, cr9, [r0], #8 @ wldrd wR9, [r0], #8 - ldcl p1, cr10, [r0], #8 @ wldrd wR10, [r0], #8 - ldcl p1, cr11, [r0], #8 @ wldrd wR11, [r0], #8 - ldcl p1, cr12, [r0], #8 @ wldrd wR12, [r0], #8 - ldcl p1, cr13, [r0], #8 @ wldrd wR13, [r0], #8 - ldcl p1, cr14, [r0], #8 @ wldrd wR14, [r0], #8 - ldcl p1, cr15, [r0], #8 @ wldrd wR15, [r0], #8 - JMP(lr) - -@ -@ static void libunwind::Registers_arm::restoreiWMMXControl(unw_uint32_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 + ldcl p1, cr0, [r0], #8 @ wldrd wR0, [r0], #8 + ldcl p1, cr1, [r0], #8 @ wldrd wR1, [r0], #8 + ldcl p1, cr2, [r0], #8 @ wldrd wR2, [r0], #8 + ldcl p1, cr3, [r0], #8 @ wldrd wR3, [r0], #8 + ldcl p1, cr4, [r0], #8 @ wldrd wR4, [r0], #8 + ldcl p1, cr5, [r0], #8 @ wldrd wR5, [r0], #8 + ldcl p1, cr6, [r0], #8 @ wldrd wR6, [r0], #8 + ldcl p1, cr7, [r0], #8 @ wldrd wR7, [r0], #8 + ldcl p1, cr8, [r0], #8 @ wldrd wR8, [r0], #8 + ldcl p1, cr9, [r0], #8 @ wldrd wR9, [r0], #8 + ldcl p1, cr10, [r0], #8 @ wldrd wR10, [r0], #8 + ldcl p1, cr11, [r0], #8 @ wldrd wR11, [r0], #8 + ldcl p1, cr12, [r0], #8 @ wldrd wR12, [r0], #8 + ldcl p1, cr13, [r0], #8 @ wldrd wR13, [r0], #8 + ldcl p1, cr14, [r0], #8 @ wldrd wR14, [r0], #8 + ldcl p1, cr15, [r0], #8 @ wldrd wR15, [r0], #8 + JMP(lr) + +@ +@ static void libunwind::Registers_arm::restoreiWMMXControl(unw_uint32_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) .arch armv5te #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm19restoreiWMMXControlEPj) - ldc2 p1, cr8, [r0], #4 @ wldrw wCGR0, [r0], #4 - ldc2 p1, cr9, [r0], #4 @ wldrw wCGR1, [r0], #4 - ldc2 p1, cr10, [r0], #4 @ wldrw wCGR2, [r0], #4 - ldc2 p1, cr11, [r0], #4 @ wldrw wCGR3, [r0], #4 - JMP(lr) - + ldc2 p1, cr8, [r0], #4 @ wldrw wCGR0, [r0], #4 + ldc2 p1, cr9, [r0], #4 @ wldrw wCGR1, [r0], #4 + ldc2 p1, cr10, [r0], #4 @ wldrw wCGR2, [r0], #4 + ldc2 p1, cr11, [r0], #4 @ wldrw wCGR3, [r0], #4 + JMP(lr) + #endif -#elif defined(__or1k__) - +#elif defined(__or1k__) + DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind14Registers_or1k6jumptoEv) -# -# void libunwind::Registers_or1k::jumpto() -# -# On entry: -# thread_state pointer is in r3 -# - +# +# void libunwind::Registers_or1k::jumpto() +# +# On entry: +# thread_state pointer is in r3 +# + # restore integral registers - l.lwz r0, 0(r3) - l.lwz r1, 4(r3) - l.lwz r2, 8(r3) - # skip r3 for now - l.lwz r4, 16(r3) - l.lwz r5, 20(r3) - l.lwz r6, 24(r3) - l.lwz r7, 28(r3) - l.lwz r8, 32(r3) + l.lwz r0, 0(r3) + l.lwz r1, 4(r3) + l.lwz r2, 8(r3) + # skip r3 for now + l.lwz r4, 16(r3) + l.lwz r5, 20(r3) + l.lwz r6, 24(r3) + l.lwz r7, 28(r3) + l.lwz r8, 32(r3) # skip r9 - l.lwz r10, 40(r3) - l.lwz r11, 44(r3) - l.lwz r12, 48(r3) - l.lwz r13, 52(r3) - l.lwz r14, 56(r3) - l.lwz r15, 60(r3) - l.lwz r16, 64(r3) - l.lwz r17, 68(r3) - l.lwz r18, 72(r3) - l.lwz r19, 76(r3) - l.lwz r20, 80(r3) - l.lwz r21, 84(r3) - l.lwz r22, 88(r3) - l.lwz r23, 92(r3) - l.lwz r24, 96(r3) - l.lwz r25,100(r3) - l.lwz r26,104(r3) - l.lwz r27,108(r3) - l.lwz r28,112(r3) - l.lwz r29,116(r3) - l.lwz r30,120(r3) - l.lwz r31,124(r3) - + l.lwz r10, 40(r3) + l.lwz r11, 44(r3) + l.lwz r12, 48(r3) + l.lwz r13, 52(r3) + l.lwz r14, 56(r3) + l.lwz r15, 60(r3) + l.lwz r16, 64(r3) + l.lwz r17, 68(r3) + l.lwz r18, 72(r3) + l.lwz r19, 76(r3) + l.lwz r20, 80(r3) + l.lwz r21, 84(r3) + l.lwz r22, 88(r3) + l.lwz r23, 92(r3) + l.lwz r24, 96(r3) + l.lwz r25,100(r3) + l.lwz r26,104(r3) + l.lwz r27,108(r3) + l.lwz r28,112(r3) + l.lwz r29,116(r3) + l.lwz r30,120(r3) + l.lwz r31,124(r3) + # load new pc into ra l.lwz r9, 128(r3) - # at last, restore r3 - l.lwz r3, 12(r3) - - # jump to pc - l.jr r9 - l.nop - + # at last, restore r3 + l.lwz r3, 12(r3) + + # jump to pc + l.jr r9 + l.nop + #elif defined(__hexagon__) # On entry: # thread_state pointer is in r2 @@ -927,7 +927,7 @@ DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind18Registers_mips_o326jumptoEv) ldc1 $f29, (4 * 36 + 8 * 29)($4) ldc1 $f30, (4 * 36 + 8 * 30)($4) ldc1 $f31, (4 * 36 + 8 * 31)($4) -#endif +#endif #endif // restore hi and lo lw $8, (4 * 33)($4) diff --git a/contrib/libs/libunwind/src/UnwindRegistersSave.S b/contrib/libs/libunwind/src/UnwindRegistersSave.S index b6170bcdc6..9566bb0335 100644 --- a/contrib/libs/libunwind/src/UnwindRegistersSave.S +++ b/contrib/libs/libunwind/src/UnwindRegistersSave.S @@ -1,68 +1,68 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - -#include "assembly.h" - - .text - +// +//===----------------------------------------------------------------------===// + +#include "assembly.h" + + .text + #if !defined(__USING_SJLJ_EXCEPTIONS__) -#if defined(__i386__) - -# +#if defined(__i386__) + +# # extern int __unw_getcontext(unw_context_t* thread_state) -# -# On entry: -# + + -# +-----------------------+ -# + thread_state pointer + -# +-----------------------+ -# + return address + -# +-----------------------+ <-- SP -# + + -# +# +# On entry: +# + + +# +-----------------------+ +# + thread_state pointer + +# +-----------------------+ +# + return address + +# +-----------------------+ <-- SP +# + + +# DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) _LIBUNWIND_CET_ENDBR - push %eax - movl 8(%esp), %eax - movl %ebx, 4(%eax) - movl %ecx, 8(%eax) - movl %edx, 12(%eax) - movl %edi, 16(%eax) - movl %esi, 20(%eax) - movl %ebp, 24(%eax) - movl %esp, %edx - addl $8, %edx - movl %edx, 28(%eax) # store what sp was at call site as esp - # skip ss - # skip eflags - movl 4(%esp), %edx - movl %edx, 40(%eax) # store return address as eip - # skip cs - # skip ds - # skip es - # skip fs - # skip gs - movl (%esp), %edx - movl %edx, (%eax) # store original eax - popl %eax - xorl %eax, %eax # return UNW_ESUCCESS - ret - -#elif defined(__x86_64__) - -# + push %eax + movl 8(%esp), %eax + movl %ebx, 4(%eax) + movl %ecx, 8(%eax) + movl %edx, 12(%eax) + movl %edi, 16(%eax) + movl %esi, 20(%eax) + movl %ebp, 24(%eax) + movl %esp, %edx + addl $8, %edx + movl %edx, 28(%eax) # store what sp was at call site as esp + # skip ss + # skip eflags + movl 4(%esp), %edx + movl %edx, 40(%eax) # store return address as eip + # skip cs + # skip ds + # skip es + # skip fs + # skip gs + movl (%esp), %edx + movl %edx, (%eax) # store original eax + popl %eax + xorl %eax, %eax # return UNW_ESUCCESS + ret + +#elif defined(__x86_64__) + +# # extern int __unw_getcontext(unw_context_t* thread_state) -# -# On entry: -# thread_state pointer is in rdi -# +# +# On entry: +# thread_state pointer is in rdi +# DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) #if defined(_WIN64) #define PTR %rcx @@ -92,10 +92,10 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) movq %r15,120(PTR) movq (%rsp),TMP movq TMP,128(PTR) # store return address as rip - # skip rflags - # skip cs - # skip fs - # skip gs + # skip rflags + # skip cs + # skip fs + # skip gs #if defined(_WIN64) movdqu %xmm0,176(PTR) @@ -115,9 +115,9 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) movdqu %xmm14,400(PTR) movdqu %xmm15,416(PTR) #endif - xorl %eax, %eax # return UNW_ESUCCESS - ret - + xorl %eax, %eax # return UNW_ESUCCESS + ret + #elif defined(__mips__) && defined(_ABIO32) && _MIPS_SIM == _ABIO32 # @@ -317,15 +317,15 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) or $2, $0, $0 .set pop -# elif defined(__mips__) - -# +# elif defined(__mips__) + +# # extern int __unw_getcontext(unw_context_t* thread_state) -# -# Just trap for the time being. +# +# Just trap for the time being. DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) - teq $0, $0 - + teq $0, $0 + #elif defined(__powerpc64__) // @@ -560,7 +560,7 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) #elif defined(__powerpc__) - + // // extern int unw_getcontext(unw_context_t* thread_state) // @@ -602,7 +602,7 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) stw 29,124(3) stw 30,128(3) stw 31,132(3) - + // save VRSave register mfspr 0, 256 stw 0, 156(3) @@ -612,7 +612,7 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) // save CTR register mfctr 0 stw 0, 148(3) - + #if !defined(__NO_FPRS__) // save float registers stfd 0, 160(3) @@ -648,15 +648,15 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) stfd 30,400(3) stfd 31,408(3) #endif - + #if defined(__ALTIVEC__) // save vector registers - + subi 4, 1, 16 rlwinm 4, 4, 0, 0, 27 // mask low 4-bits // r4 is now a 16-byte aligned pointer into the red zone - -#define SAVE_VECTOR_UNALIGNED(_vec, _offset) \ + +#define SAVE_VECTOR_UNALIGNED(_vec, _offset) \ stvx _vec, 0, 4 SEPARATOR \ lwz 5, 0(4) SEPARATOR \ stw 5, _offset(3) SEPARATOR \ @@ -666,7 +666,7 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) stw 5, _offset+8(3) SEPARATOR \ lwz 5, 12(4) SEPARATOR \ stw 5, _offset+12(3) - + SAVE_VECTOR_UNALIGNED( 0, 424+0x000) SAVE_VECTOR_UNALIGNED( 1, 424+0x010) SAVE_VECTOR_UNALIGNED( 2, 424+0x020) @@ -700,83 +700,83 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) SAVE_VECTOR_UNALIGNED(30, 424+0x1E0) SAVE_VECTOR_UNALIGNED(31, 424+0x1F0) #endif - + li 3, 0 // return UNW_ESUCCESS - blr - - + blr + + #elif defined(__aarch64__) - -// + +// // extern int __unw_getcontext(unw_context_t* thread_state) -// -// On entry: -// thread_state pointer is in x0 -// - .p2align 2 +// +// On entry: +// thread_state pointer is in x0 +// + .p2align 2 DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) - stp x0, x1, [x0, #0x000] - stp x2, x3, [x0, #0x010] - stp x4, x5, [x0, #0x020] - stp x6, x7, [x0, #0x030] - stp x8, x9, [x0, #0x040] - stp x10,x11, [x0, #0x050] - stp x12,x13, [x0, #0x060] - stp x14,x15, [x0, #0x070] - stp x16,x17, [x0, #0x080] - stp x18,x19, [x0, #0x090] - stp x20,x21, [x0, #0x0A0] - stp x22,x23, [x0, #0x0B0] - stp x24,x25, [x0, #0x0C0] - stp x26,x27, [x0, #0x0D0] + stp x0, x1, [x0, #0x000] + stp x2, x3, [x0, #0x010] + stp x4, x5, [x0, #0x020] + stp x6, x7, [x0, #0x030] + stp x8, x9, [x0, #0x040] + stp x10,x11, [x0, #0x050] + stp x12,x13, [x0, #0x060] + stp x14,x15, [x0, #0x070] + stp x16,x17, [x0, #0x080] + stp x18,x19, [x0, #0x090] + stp x20,x21, [x0, #0x0A0] + stp x22,x23, [x0, #0x0B0] + stp x24,x25, [x0, #0x0C0] + stp x26,x27, [x0, #0x0D0] stp x28,x29, [x0, #0x0E0] str x30, [x0, #0x0F0] - mov x1,sp - str x1, [x0, #0x0F8] + mov x1,sp + str x1, [x0, #0x0F8] str x30, [x0, #0x100] // store return address as pc - // skip cpsr - stp d0, d1, [x0, #0x110] - stp d2, d3, [x0, #0x120] - stp d4, d5, [x0, #0x130] - stp d6, d7, [x0, #0x140] - stp d8, d9, [x0, #0x150] - stp d10,d11, [x0, #0x160] - stp d12,d13, [x0, #0x170] - stp d14,d15, [x0, #0x180] - stp d16,d17, [x0, #0x190] - stp d18,d19, [x0, #0x1A0] - stp d20,d21, [x0, #0x1B0] - stp d22,d23, [x0, #0x1C0] - stp d24,d25, [x0, #0x1D0] - stp d26,d27, [x0, #0x1E0] - stp d28,d29, [x0, #0x1F0] - str d30, [x0, #0x200] - str d31, [x0, #0x208] - mov x0, #0 // return UNW_ESUCCESS - ret - -#elif defined(__arm__) && !defined(__APPLE__) - -#if !defined(__ARM_ARCH_ISA_ARM) + // skip cpsr + stp d0, d1, [x0, #0x110] + stp d2, d3, [x0, #0x120] + stp d4, d5, [x0, #0x130] + stp d6, d7, [x0, #0x140] + stp d8, d9, [x0, #0x150] + stp d10,d11, [x0, #0x160] + stp d12,d13, [x0, #0x170] + stp d14,d15, [x0, #0x180] + stp d16,d17, [x0, #0x190] + stp d18,d19, [x0, #0x1A0] + stp d20,d21, [x0, #0x1B0] + stp d22,d23, [x0, #0x1C0] + stp d24,d25, [x0, #0x1D0] + stp d26,d27, [x0, #0x1E0] + stp d28,d29, [x0, #0x1F0] + str d30, [x0, #0x200] + str d31, [x0, #0x208] + mov x0, #0 // return UNW_ESUCCESS + ret + +#elif defined(__arm__) && !defined(__APPLE__) + +#if !defined(__ARM_ARCH_ISA_ARM) #if (__ARM_ARCH_ISA_THUMB == 2) .syntax unified #endif - .thumb -#endif - -@ + .thumb +#endif + +@ @ extern int __unw_getcontext(unw_context_t* thread_state) +@ +@ On entry: +@ thread_state pointer is in r0 @ -@ On entry: -@ thread_state pointer is in r0 -@ -@ Per EHABI #4.7 this only saves the core integer registers. -@ EHABI #7.4.5 notes that in general all VRS registers should be restored -@ however this is very hard to do for VFP registers because it is unknown -@ to the library how many registers are implemented by the architecture. +@ Per EHABI #4.7 this only saves the core integer registers. +@ EHABI #7.4.5 notes that in general all VRS registers should be restored +@ however this is very hard to do for VFP registers because it is unknown +@ to the library how many registers are implemented by the architecture. @ Instead, VFP registers are demand saved by logic external to __unw_getcontext. -@ - .p2align 2 +@ + .p2align 2 DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) #if !defined(__ARM_ARCH_ISA_ARM) && __ARM_ARCH_ISA_THUMB == 1 stm r0!, {r0-r7} @@ -785,8 +785,8 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) mov r3, r10 stm r0!, {r1-r3} mov r1, r11 - mov r2, sp - mov r3, lr + mov r2, sp + mov r3, lr str r1, [r0, #0] @ r11 @ r12 does not need storing, it it the intra-procedure-call scratch register str r2, [r0, #8] @ sp @@ -796,158 +796,158 @@ DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) @ It is safe to use here though because we are about to return, and cpsr is @ not expected to be preserved. movs r0, #0 @ return UNW_ESUCCESS -#else - @ 32bit thumb-2 restrictions for stm: - @ . the sp (r13) cannot be in the list - @ . the pc (r15) cannot be in the list in an STM instruction - stm r0, {r0-r12} - str sp, [r0, #52] - str lr, [r0, #56] - str lr, [r0, #60] @ store return address as pc - mov r0, #0 @ return UNW_ESUCCESS -#endif - JMP(lr) - -@ -@ static void libunwind::Registers_arm::saveVFPWithFSTMD(unw_fpreg_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 +#else + @ 32bit thumb-2 restrictions for stm: + @ . the sp (r13) cannot be in the list + @ . the pc (r15) cannot be in the list in an STM instruction + stm r0, {r0-r12} + str sp, [r0, #52] + str lr, [r0, #56] + str lr, [r0, #60] @ store return address as pc + mov r0, #0 @ return UNW_ESUCCESS +#endif + JMP(lr) + +@ +@ static void libunwind::Registers_arm::saveVFPWithFSTMD(unw_fpreg_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) - .fpu vfpv3-d16 + .fpu vfpv3-d16 #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm16saveVFPWithFSTMDEPv) - vstmia r0, {d0-d15} - JMP(lr) - -@ -@ static void libunwind::Registers_arm::saveVFPWithFSTMX(unw_fpreg_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 + vstmia r0, {d0-d15} + JMP(lr) + +@ +@ static void libunwind::Registers_arm::saveVFPWithFSTMX(unw_fpreg_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) - .fpu vfpv3-d16 + .fpu vfpv3-d16 #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm16saveVFPWithFSTMXEPv) - vstmia r0, {d0-d15} @ fstmiax is deprecated in ARMv7+ and now behaves like vstmia - JMP(lr) - -@ -@ static void libunwind::Registers_arm::saveVFPv3(unw_fpreg_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 + vstmia r0, {d0-d15} @ fstmiax is deprecated in ARMv7+ and now behaves like vstmia + JMP(lr) + +@ +@ static void libunwind::Registers_arm::saveVFPv3(unw_fpreg_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) - .fpu vfpv3 + .fpu vfpv3 #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm9saveVFPv3EPv) - @ VFP and iwMMX instructions are only available when compiling with the flags - @ that enable them. We do not want to do that in the library (because we do not - @ want the compiler to generate instructions that access those) but this is - @ only accessed if the personality routine needs these registers. Use of - @ these registers implies they are, actually, available on the target, so - @ it's ok to execute. - @ So, generate the instructions using the corresponding coprocessor mnemonic. - vstmia r0, {d16-d31} - JMP(lr) - + @ VFP and iwMMX instructions are only available when compiling with the flags + @ that enable them. We do not want to do that in the library (because we do not + @ want the compiler to generate instructions that access those) but this is + @ only accessed if the personality routine needs these registers. Use of + @ these registers implies they are, actually, available on the target, so + @ it's ok to execute. + @ So, generate the instructions using the corresponding coprocessor mnemonic. + vstmia r0, {d16-d31} + JMP(lr) + #if defined(_LIBUNWIND_ARM_WMMX) -@ -@ static void libunwind::Registers_arm::saveiWMMX(unw_fpreg_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 +@ +@ static void libunwind::Registers_arm::saveiWMMX(unw_fpreg_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) .arch armv5te #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm9saveiWMMXEPv) - stcl p1, cr0, [r0], #8 @ wstrd wR0, [r0], #8 - stcl p1, cr1, [r0], #8 @ wstrd wR1, [r0], #8 - stcl p1, cr2, [r0], #8 @ wstrd wR2, [r0], #8 - stcl p1, cr3, [r0], #8 @ wstrd wR3, [r0], #8 - stcl p1, cr4, [r0], #8 @ wstrd wR4, [r0], #8 - stcl p1, cr5, [r0], #8 @ wstrd wR5, [r0], #8 - stcl p1, cr6, [r0], #8 @ wstrd wR6, [r0], #8 - stcl p1, cr7, [r0], #8 @ wstrd wR7, [r0], #8 - stcl p1, cr8, [r0], #8 @ wstrd wR8, [r0], #8 - stcl p1, cr9, [r0], #8 @ wstrd wR9, [r0], #8 - stcl p1, cr10, [r0], #8 @ wstrd wR10, [r0], #8 - stcl p1, cr11, [r0], #8 @ wstrd wR11, [r0], #8 - stcl p1, cr12, [r0], #8 @ wstrd wR12, [r0], #8 - stcl p1, cr13, [r0], #8 @ wstrd wR13, [r0], #8 - stcl p1, cr14, [r0], #8 @ wstrd wR14, [r0], #8 - stcl p1, cr15, [r0], #8 @ wstrd wR15, [r0], #8 - JMP(lr) - -@ -@ static void libunwind::Registers_arm::saveiWMMXControl(unw_uint32_t* values) -@ -@ On entry: -@ values pointer is in r0 -@ - .p2align 2 + stcl p1, cr0, [r0], #8 @ wstrd wR0, [r0], #8 + stcl p1, cr1, [r0], #8 @ wstrd wR1, [r0], #8 + stcl p1, cr2, [r0], #8 @ wstrd wR2, [r0], #8 + stcl p1, cr3, [r0], #8 @ wstrd wR3, [r0], #8 + stcl p1, cr4, [r0], #8 @ wstrd wR4, [r0], #8 + stcl p1, cr5, [r0], #8 @ wstrd wR5, [r0], #8 + stcl p1, cr6, [r0], #8 @ wstrd wR6, [r0], #8 + stcl p1, cr7, [r0], #8 @ wstrd wR7, [r0], #8 + stcl p1, cr8, [r0], #8 @ wstrd wR8, [r0], #8 + stcl p1, cr9, [r0], #8 @ wstrd wR9, [r0], #8 + stcl p1, cr10, [r0], #8 @ wstrd wR10, [r0], #8 + stcl p1, cr11, [r0], #8 @ wstrd wR11, [r0], #8 + stcl p1, cr12, [r0], #8 @ wstrd wR12, [r0], #8 + stcl p1, cr13, [r0], #8 @ wstrd wR13, [r0], #8 + stcl p1, cr14, [r0], #8 @ wstrd wR14, [r0], #8 + stcl p1, cr15, [r0], #8 @ wstrd wR15, [r0], #8 + JMP(lr) + +@ +@ static void libunwind::Registers_arm::saveiWMMXControl(unw_uint32_t* values) +@ +@ On entry: +@ values pointer is in r0 +@ + .p2align 2 #if defined(__ELF__) .arch armv5te #endif DEFINE_LIBUNWIND_FUNCTION(_ZN9libunwind13Registers_arm16saveiWMMXControlEPj) - stc2 p1, cr8, [r0], #4 @ wstrw wCGR0, [r0], #4 - stc2 p1, cr9, [r0], #4 @ wstrw wCGR1, [r0], #4 - stc2 p1, cr10, [r0], #4 @ wstrw wCGR2, [r0], #4 - stc2 p1, cr11, [r0], #4 @ wstrw wCGR3, [r0], #4 - JMP(lr) - + stc2 p1, cr8, [r0], #4 @ wstrw wCGR0, [r0], #4 + stc2 p1, cr9, [r0], #4 @ wstrw wCGR1, [r0], #4 + stc2 p1, cr10, [r0], #4 @ wstrw wCGR2, [r0], #4 + stc2 p1, cr11, [r0], #4 @ wstrw wCGR3, [r0], #4 + JMP(lr) + #endif -#elif defined(__or1k__) - -# +#elif defined(__or1k__) + +# # extern int __unw_getcontext(unw_context_t* thread_state) -# -# On entry: -# thread_state pointer is in r3 -# +# +# On entry: +# thread_state pointer is in r3 +# DEFINE_LIBUNWIND_FUNCTION(__unw_getcontext) - l.sw 0(r3), r0 - l.sw 4(r3), r1 - l.sw 8(r3), r2 - l.sw 12(r3), r3 - l.sw 16(r3), r4 - l.sw 20(r3), r5 - l.sw 24(r3), r6 - l.sw 28(r3), r7 - l.sw 32(r3), r8 - l.sw 36(r3), r9 - l.sw 40(r3), r10 - l.sw 44(r3), r11 - l.sw 48(r3), r12 - l.sw 52(r3), r13 - l.sw 56(r3), r14 - l.sw 60(r3), r15 - l.sw 64(r3), r16 - l.sw 68(r3), r17 - l.sw 72(r3), r18 - l.sw 76(r3), r19 - l.sw 80(r3), r20 - l.sw 84(r3), r21 - l.sw 88(r3), r22 - l.sw 92(r3), r23 - l.sw 96(r3), r24 - l.sw 100(r3), r25 - l.sw 104(r3), r26 - l.sw 108(r3), r27 - l.sw 112(r3), r28 - l.sw 116(r3), r29 - l.sw 120(r3), r30 - l.sw 124(r3), r31 + l.sw 0(r3), r0 + l.sw 4(r3), r1 + l.sw 8(r3), r2 + l.sw 12(r3), r3 + l.sw 16(r3), r4 + l.sw 20(r3), r5 + l.sw 24(r3), r6 + l.sw 28(r3), r7 + l.sw 32(r3), r8 + l.sw 36(r3), r9 + l.sw 40(r3), r10 + l.sw 44(r3), r11 + l.sw 48(r3), r12 + l.sw 52(r3), r13 + l.sw 56(r3), r14 + l.sw 60(r3), r15 + l.sw 64(r3), r16 + l.sw 68(r3), r17 + l.sw 72(r3), r18 + l.sw 76(r3), r19 + l.sw 80(r3), r20 + l.sw 84(r3), r21 + l.sw 88(r3), r22 + l.sw 92(r3), r23 + l.sw 96(r3), r24 + l.sw 100(r3), r25 + l.sw 104(r3), r26 + l.sw 108(r3), r27 + l.sw 112(r3), r28 + l.sw 116(r3), r29 + l.sw 120(r3), r30 + l.sw 124(r3), r31 # store ra to pc l.sw 128(r3), r9 # zero epcr diff --git a/contrib/libs/libunwind/src/Unwind_AppleExtras.cpp b/contrib/libs/libunwind/src/Unwind_AppleExtras.cpp index 1a0b61f6cb..ffb49a89e5 100644 --- a/contrib/libs/libunwind/src/Unwind_AppleExtras.cpp +++ b/contrib/libs/libunwind/src/Unwind_AppleExtras.cpp @@ -1,113 +1,113 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -//===----------------------------------------------------------------------===// - -#include "config.h" - - -// static linker symbols to prevent wrong two level namespace for _Unwind symbols -#if defined(__arm__) - #define NOT_HERE_BEFORE_5_0(sym) \ - extern const char sym##_tmp30 __asm("$ld$hide$os3.0$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp30 = 0; \ - extern const char sym##_tmp31 __asm("$ld$hide$os3.1$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp31 = 0; \ - extern const char sym##_tmp32 __asm("$ld$hide$os3.2$_" #sym );\ - __attribute__((visibility("default"))) const char sym##_tmp32 = 0; \ - extern const char sym##_tmp40 __asm("$ld$hide$os4.0$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp40 = 0; \ - extern const char sym##_tmp41 __asm("$ld$hide$os4.1$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp41 = 0; \ - extern const char sym##_tmp42 __asm("$ld$hide$os4.2$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp42 = 0; \ - extern const char sym##_tmp43 __asm("$ld$hide$os4.3$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp43 = 0; +// +// +//===----------------------------------------------------------------------===// + +#include "config.h" + + +// static linker symbols to prevent wrong two level namespace for _Unwind symbols +#if defined(__arm__) + #define NOT_HERE_BEFORE_5_0(sym) \ + extern const char sym##_tmp30 __asm("$ld$hide$os3.0$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp30 = 0; \ + extern const char sym##_tmp31 __asm("$ld$hide$os3.1$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp31 = 0; \ + extern const char sym##_tmp32 __asm("$ld$hide$os3.2$_" #sym );\ + __attribute__((visibility("default"))) const char sym##_tmp32 = 0; \ + extern const char sym##_tmp40 __asm("$ld$hide$os4.0$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp40 = 0; \ + extern const char sym##_tmp41 __asm("$ld$hide$os4.1$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp41 = 0; \ + extern const char sym##_tmp42 __asm("$ld$hide$os4.2$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp42 = 0; \ + extern const char sym##_tmp43 __asm("$ld$hide$os4.3$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp43 = 0; #elif defined(__aarch64__) - #define NOT_HERE_BEFORE_10_6(sym) - #define NEVER_HERE(sym) -#else - #define NOT_HERE_BEFORE_10_6(sym) \ - extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \ - extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp5 = 0; - #define NEVER_HERE(sym) \ - extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \ - extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp5 = 0; \ - extern const char sym##_tmp6 __asm("$ld$hide$os10.6$_" #sym ); \ - __attribute__((visibility("default"))) const char sym##_tmp6 = 0; -#endif - - + #define NOT_HERE_BEFORE_10_6(sym) + #define NEVER_HERE(sym) +#else + #define NOT_HERE_BEFORE_10_6(sym) \ + extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \ + extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp5 = 0; + #define NEVER_HERE(sym) \ + extern const char sym##_tmp4 __asm("$ld$hide$os10.4$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp4 = 0; \ + extern const char sym##_tmp5 __asm("$ld$hide$os10.5$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp5 = 0; \ + extern const char sym##_tmp6 __asm("$ld$hide$os10.6$_" #sym ); \ + __attribute__((visibility("default"))) const char sym##_tmp6 = 0; +#endif + + #if defined(_LIBUNWIND_BUILD_ZERO_COST_APIS) - -// -// symbols in libSystem.dylib in 10.6 and later, but are in libgcc_s.dylib in -// earlier versions -// -NOT_HERE_BEFORE_10_6(_Unwind_DeleteException) -NOT_HERE_BEFORE_10_6(_Unwind_Find_FDE) -NOT_HERE_BEFORE_10_6(_Unwind_ForcedUnwind) -NOT_HERE_BEFORE_10_6(_Unwind_GetGR) -NOT_HERE_BEFORE_10_6(_Unwind_GetIP) -NOT_HERE_BEFORE_10_6(_Unwind_GetLanguageSpecificData) -NOT_HERE_BEFORE_10_6(_Unwind_GetRegionStart) -NOT_HERE_BEFORE_10_6(_Unwind_RaiseException) -NOT_HERE_BEFORE_10_6(_Unwind_Resume) -NOT_HERE_BEFORE_10_6(_Unwind_SetGR) -NOT_HERE_BEFORE_10_6(_Unwind_SetIP) -NOT_HERE_BEFORE_10_6(_Unwind_Backtrace) -NOT_HERE_BEFORE_10_6(_Unwind_FindEnclosingFunction) -NOT_HERE_BEFORE_10_6(_Unwind_GetCFA) -NOT_HERE_BEFORE_10_6(_Unwind_GetDataRelBase) -NOT_HERE_BEFORE_10_6(_Unwind_GetTextRelBase) -NOT_HERE_BEFORE_10_6(_Unwind_Resume_or_Rethrow) -NOT_HERE_BEFORE_10_6(_Unwind_GetIPInfo) -NOT_HERE_BEFORE_10_6(__register_frame) -NOT_HERE_BEFORE_10_6(__deregister_frame) - -// -// symbols in libSystem.dylib for compatibility, but we don't want any new code -// using them -// -NEVER_HERE(__register_frame_info_bases) -NEVER_HERE(__register_frame_info) -NEVER_HERE(__register_frame_info_table_bases) -NEVER_HERE(__register_frame_info_table) -NEVER_HERE(__register_frame_table) -NEVER_HERE(__deregister_frame_info) -NEVER_HERE(__deregister_frame_info_bases) - + +// +// symbols in libSystem.dylib in 10.6 and later, but are in libgcc_s.dylib in +// earlier versions +// +NOT_HERE_BEFORE_10_6(_Unwind_DeleteException) +NOT_HERE_BEFORE_10_6(_Unwind_Find_FDE) +NOT_HERE_BEFORE_10_6(_Unwind_ForcedUnwind) +NOT_HERE_BEFORE_10_6(_Unwind_GetGR) +NOT_HERE_BEFORE_10_6(_Unwind_GetIP) +NOT_HERE_BEFORE_10_6(_Unwind_GetLanguageSpecificData) +NOT_HERE_BEFORE_10_6(_Unwind_GetRegionStart) +NOT_HERE_BEFORE_10_6(_Unwind_RaiseException) +NOT_HERE_BEFORE_10_6(_Unwind_Resume) +NOT_HERE_BEFORE_10_6(_Unwind_SetGR) +NOT_HERE_BEFORE_10_6(_Unwind_SetIP) +NOT_HERE_BEFORE_10_6(_Unwind_Backtrace) +NOT_HERE_BEFORE_10_6(_Unwind_FindEnclosingFunction) +NOT_HERE_BEFORE_10_6(_Unwind_GetCFA) +NOT_HERE_BEFORE_10_6(_Unwind_GetDataRelBase) +NOT_HERE_BEFORE_10_6(_Unwind_GetTextRelBase) +NOT_HERE_BEFORE_10_6(_Unwind_Resume_or_Rethrow) +NOT_HERE_BEFORE_10_6(_Unwind_GetIPInfo) +NOT_HERE_BEFORE_10_6(__register_frame) +NOT_HERE_BEFORE_10_6(__deregister_frame) + +// +// symbols in libSystem.dylib for compatibility, but we don't want any new code +// using them +// +NEVER_HERE(__register_frame_info_bases) +NEVER_HERE(__register_frame_info) +NEVER_HERE(__register_frame_info_table_bases) +NEVER_HERE(__register_frame_info_table) +NEVER_HERE(__register_frame_table) +NEVER_HERE(__deregister_frame_info) +NEVER_HERE(__deregister_frame_info_bases) + #endif // defined(_LIBUNWIND_BUILD_ZERO_COST_APIS) - - - - + + + + #if defined(_LIBUNWIND_BUILD_SJLJ_APIS) -// -// symbols in libSystem.dylib in iOS 5.0 and later, but are in libgcc_s.dylib in -// earlier versions -// -NOT_HERE_BEFORE_5_0(_Unwind_GetLanguageSpecificData) -NOT_HERE_BEFORE_5_0(_Unwind_GetRegionStart) -NOT_HERE_BEFORE_5_0(_Unwind_GetIP) -NOT_HERE_BEFORE_5_0(_Unwind_SetGR) -NOT_HERE_BEFORE_5_0(_Unwind_SetIP) -NOT_HERE_BEFORE_5_0(_Unwind_DeleteException) -NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Register) -NOT_HERE_BEFORE_5_0(_Unwind_GetGR) -NOT_HERE_BEFORE_5_0(_Unwind_GetIPInfo) -NOT_HERE_BEFORE_5_0(_Unwind_GetCFA) -NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Resume) -NOT_HERE_BEFORE_5_0(_Unwind_SjLj_RaiseException) -NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Resume_or_Rethrow) -NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Unregister) - +// +// symbols in libSystem.dylib in iOS 5.0 and later, but are in libgcc_s.dylib in +// earlier versions +// +NOT_HERE_BEFORE_5_0(_Unwind_GetLanguageSpecificData) +NOT_HERE_BEFORE_5_0(_Unwind_GetRegionStart) +NOT_HERE_BEFORE_5_0(_Unwind_GetIP) +NOT_HERE_BEFORE_5_0(_Unwind_SetGR) +NOT_HERE_BEFORE_5_0(_Unwind_SetIP) +NOT_HERE_BEFORE_5_0(_Unwind_DeleteException) +NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Register) +NOT_HERE_BEFORE_5_0(_Unwind_GetGR) +NOT_HERE_BEFORE_5_0(_Unwind_GetIPInfo) +NOT_HERE_BEFORE_5_0(_Unwind_GetCFA) +NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Resume) +NOT_HERE_BEFORE_5_0(_Unwind_SjLj_RaiseException) +NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Resume_or_Rethrow) +NOT_HERE_BEFORE_5_0(_Unwind_SjLj_Unregister) + #endif // defined(_LIBUNWIND_BUILD_SJLJ_APIS) diff --git a/contrib/libs/libunwind/src/assembly.h b/contrib/libs/libunwind/src/assembly.h index ab0b191b9d..978f6bd619 100644 --- a/contrib/libs/libunwind/src/assembly.h +++ b/contrib/libs/libunwind/src/assembly.h @@ -1,20 +1,20 @@ -/* ===-- assembly.h - libUnwind assembler support macros -------------------=== - * +/* ===-- assembly.h - libUnwind assembler support macros -------------------=== + * * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. * See https://llvm.org/LICENSE.txt for license information. * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception - * - * ===----------------------------------------------------------------------=== - * - * This file defines macros for use in libUnwind assembler source. - * This file is not part of the interface of this library. - * - * ===----------------------------------------------------------------------=== - */ - -#ifndef UNWIND_ASSEMBLY_H -#define UNWIND_ASSEMBLY_H - + * + * ===----------------------------------------------------------------------=== + * + * This file defines macros for use in libUnwind assembler source. + * This file is not part of the interface of this library. + * + * ===----------------------------------------------------------------------=== + */ + +#ifndef UNWIND_ASSEMBLY_H +#define UNWIND_ASSEMBLY_H + #if (defined(__i386__) || defined(__x86_64__)) && defined(__linux__) #include <cet.h> #define _LIBUNWIND_CET_ENDBR _CET_ENDBR @@ -33,7 +33,7 @@ #define PPC64_OFFS_FP 312 #define PPC64_OFFS_V 824 #elif defined(__APPLE__) && defined(__aarch64__) -#define SEPARATOR %% +#define SEPARATOR %% #elif defined(__riscv) # define RISCV_ISIZE (__riscv_xlen / 8) # define RISCV_FOFFSET (RISCV_ISIZE * 32) @@ -63,10 +63,10 @@ # endif # endif # define SEPARATOR ; -#else -#define SEPARATOR ; -#endif - +#else +#define SEPARATOR ; +#endif + #if defined(__powerpc64__) && (!defined(_CALL_ELF) || _CALL_ELF == 1) #define PPC64_OPD1 .section .opd,"aw",@progbits SEPARATOR #define PPC64_OPD2 SEPARATOR \ @@ -76,11 +76,11 @@ .quad 0 SEPARATOR \ .text SEPARATOR \ .Lfunc_begin0: -#else +#else #define PPC64_OPD1 #define PPC64_OPD2 -#endif - +#endif + #if defined(__aarch64__) && defined(__ARM_FEATURE_BTI_DEFAULT) .pushsection ".note.gnu.property", "a" SEPARATOR \ .balign 8 SEPARATOR \ @@ -110,13 +110,13 @@ #endif #endif -#define GLUE2(a, b) a ## b -#define GLUE(a, b) GLUE2(a, b) -#define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name) - -#if defined(__APPLE__) +#define GLUE2(a, b) a ## b +#define GLUE(a, b) GLUE2(a, b) +#define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name) + +#if defined(__APPLE__) -#define SYMBOL_IS_FUNC(name) +#define SYMBOL_IS_FUNC(name) #define HIDDEN_SYMBOL(name) .private_extern name #if defined(_LIBUNWIND_HIDE_SYMBOLS) #define EXPORT_SYMBOL(name) HIDDEN_SYMBOL(name) @@ -130,13 +130,13 @@ #define NO_EXEC_STACK_DIRECTIVE -#elif defined(__ELF__) +#elif defined(__ELF__) -#if defined(__arm__) -#define SYMBOL_IS_FUNC(name) .type name,%function -#else -#define SYMBOL_IS_FUNC(name) .type name,@function -#endif +#if defined(__arm__) +#define SYMBOL_IS_FUNC(name) .type name,%function +#else +#define SYMBOL_IS_FUNC(name) .type name,@function +#endif #define HIDDEN_SYMBOL(name) .hidden name #if defined(_LIBUNWIND_HIDE_SYMBOLS) #define EXPORT_SYMBOL(name) HIDDEN_SYMBOL(name) @@ -160,17 +160,17 @@ #if defined(__GNU__) || defined(__FreeBSD__) || defined(__Fuchsia__) || \ defined(__linux__) #define NO_EXEC_STACK_DIRECTIVE .section .note.GNU-stack,"",%progbits -#else +#else #define NO_EXEC_STACK_DIRECTIVE #endif #elif defined(_WIN32) -#define SYMBOL_IS_FUNC(name) \ - .def name SEPARATOR \ - .scl 2 SEPARATOR \ - .type 32 SEPARATOR \ - .endef +#define SYMBOL_IS_FUNC(name) \ + .def name SEPARATOR \ + .scl 2 SEPARATOR \ + .type 32 SEPARATOR \ + .endef #define EXPORT_SYMBOL2(name) \ .section .drectve,"yn" SEPARATOR \ .ascii "-export:", #name, "\0" SEPARATOR \ @@ -179,9 +179,9 @@ #define EXPORT_SYMBOL(name) #else #define EXPORT_SYMBOL(name) EXPORT_SYMBOL2(name) -#endif +#endif #define HIDDEN_SYMBOL(name) - + #if defined(__MINGW32__) #define WEAK_ALIAS(name, aliasname) \ .globl SYMBOL_NAME(aliasname) SEPARATOR \ @@ -198,9 +198,9 @@ EXPORT_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR \ WEAK_ALIAS2(SYMBOL_NAME(name), SYMBOL_NAME(aliasname)) #endif - + #define NO_EXEC_STACK_DIRECTIVE - + #elif defined(__sparc__) #else @@ -218,24 +218,24 @@ PPC64_OPD2 \ AARCH64_BTI -#if defined(__arm__) -#if !defined(__ARM_ARCH) -#define __ARM_ARCH 4 -#endif - -#if defined(__ARM_ARCH_4T__) || __ARM_ARCH >= 5 -#define ARM_HAS_BX -#endif - -#ifdef ARM_HAS_BX -#define JMP(r) bx r -#else -#define JMP(r) mov pc, r -#endif -#endif /* __arm__ */ - +#if defined(__arm__) +#if !defined(__ARM_ARCH) +#define __ARM_ARCH 4 +#endif + +#if defined(__ARM_ARCH_4T__) || __ARM_ARCH >= 5 +#define ARM_HAS_BX +#endif + +#ifdef ARM_HAS_BX +#define JMP(r) bx r +#else +#define JMP(r) mov pc, r +#endif +#endif /* __arm__ */ + #if defined(__powerpc__) #define PPC_LEFT_SHIFT(index) << (index) #endif -#endif /* UNWIND_ASSEMBLY_H */ +#endif /* UNWIND_ASSEMBLY_H */ diff --git a/contrib/libs/libunwind/src/config.h b/contrib/libs/libunwind/src/config.h index 850a160657..560edda04e 100644 --- a/contrib/libs/libunwind/src/config.h +++ b/contrib/libs/libunwind/src/config.h @@ -1,39 +1,39 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// +// +// // Defines macros used within libunwind project. -// -//===----------------------------------------------------------------------===// - - -#ifndef LIBUNWIND_CONFIG_H -#define LIBUNWIND_CONFIG_H - -#include <assert.h> -#include <stdio.h> +// +//===----------------------------------------------------------------------===// + + +#ifndef LIBUNWIND_CONFIG_H +#define LIBUNWIND_CONFIG_H + +#include <assert.h> +#include <stdio.h> #include <stdint.h> #include <stdlib.h> - + #include <__libunwind_config.h> - -// Platform specific configuration defines. -#ifdef __APPLE__ + +// Platform specific configuration defines. +#ifdef __APPLE__ #if defined(FOR_DYLD) #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 1 #else #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 1 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 - #endif + #endif #elif defined(_WIN32) #ifdef __SEH__ #define _LIBUNWIND_SUPPORT_SEH_UNWIND 1 #else #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 - #endif + #endif #elif defined(_LIBUNWIND_IS_BAREMETAL) #if !defined(_LIBUNWIND_ARM_EHABI) #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 @@ -51,7 +51,7 @@ #define _LIBUNWIND_SUPPORT_DWARF_INDEX 1 #endif #endif - + #if defined(_LIBUNWIND_HIDE_SYMBOLS) // The CMake file passes -fvisibility=hidden to control ELF/Mach-O visibility. #define _LIBUNWIND_EXPORT @@ -60,12 +60,12 @@ #if !defined(__ELF__) && !defined(__MACH__) #define _LIBUNWIND_EXPORT __declspec(dllexport) #define _LIBUNWIND_HIDDEN - #else + #else #define _LIBUNWIND_EXPORT __attribute__((visibility("default"))) #define _LIBUNWIND_HIDDEN __attribute__((visibility("hidden"))) - #endif + #endif #endif - + #define STR(a) #a #define XSTR(a) STR(a) #define SYMBOL_NAME(name) XSTR(__USER_LABEL_PREFIX__) #name @@ -89,7 +89,7 @@ #define _LIBUNWIND_WEAK_ALIAS(name, aliasname) \ extern "C" _LIBUNWIND_EXPORT __typeof(name) aliasname \ __attribute__((alias(#name))); -#else +#else #define _LIBUNWIND_WEAK_ALIAS(name, aliasname) \ __pragma(comment(linker, "/alternatename:" SYMBOL_NAME(aliasname) "=" \ SYMBOL_NAME(name))) \ @@ -98,17 +98,17 @@ #else #error Unsupported target #endif - + // Apple/armv7k defaults to DWARF/Compact unwinding, but its libunwind also // needs to include the SJLJ APIs. #if (defined(__APPLE__) && defined(__arm__)) || defined(__USING_SJLJ_EXCEPTIONS__) #define _LIBUNWIND_BUILD_SJLJ_APIS #endif - + #if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__) #define _LIBUNWIND_SUPPORT_FRAME_APIS #endif - + #if defined(__i386__) || defined(__x86_64__) || \ defined(__ppc__) || defined(__ppc64__) || defined(__powerpc64__) || \ (!defined(__APPLE__) && defined(__arm__)) || \ @@ -118,9 +118,9 @@ defined(__hexagon__) #if !defined(_LIBUNWIND_BUILD_SJLJ_APIS) #define _LIBUNWIND_BUILD_ZERO_COST_APIS -#endif #endif - +#endif + #ifndef _LIBUNWIND_REMEMBER_HEAP_ALLOC #if defined(_LIBUNWIND_REMEMBER_STACK_ALLOC) || defined(__APPLE__) || \ defined(__linux__) || defined(__ANDROID__) || defined(__MINGW32__) || \ @@ -143,7 +143,7 @@ #define _LIBUNWIND_REMEMBER_FREE(_ptr) free(_ptr) #define _LIBUNWIND_REMEMBER_CLEANUP_NEEDED #endif - + #if defined(NDEBUG) && defined(_LIBUNWIND_IS_BAREMETAL) #define _LIBUNWIND_ABORT(msg) \ do { \ @@ -179,31 +179,31 @@ } while (0) #endif -// Macros that define away in non-Debug builds -#ifdef NDEBUG - #define _LIBUNWIND_DEBUG_LOG(msg, ...) - #define _LIBUNWIND_TRACE_API(msg, ...) +// Macros that define away in non-Debug builds +#ifdef NDEBUG + #define _LIBUNWIND_DEBUG_LOG(msg, ...) + #define _LIBUNWIND_TRACE_API(msg, ...) #define _LIBUNWIND_TRACING_UNWINDING (0) #define _LIBUNWIND_TRACING_DWARF (0) - #define _LIBUNWIND_TRACE_UNWINDING(msg, ...) + #define _LIBUNWIND_TRACE_UNWINDING(msg, ...) #define _LIBUNWIND_TRACE_DWARF(...) -#else - #ifdef __cplusplus - extern "C" { - #endif - extern bool logAPIs(); - extern bool logUnwinding(); +#else + #ifdef __cplusplus + extern "C" { + #endif + extern bool logAPIs(); + extern bool logUnwinding(); extern bool logDWARF(); - #ifdef __cplusplus - } - #endif - #define _LIBUNWIND_DEBUG_LOG(msg, ...) _LIBUNWIND_LOG(msg, __VA_ARGS__) + #ifdef __cplusplus + } + #endif + #define _LIBUNWIND_DEBUG_LOG(msg, ...) _LIBUNWIND_LOG(msg, __VA_ARGS__) #define _LIBUNWIND_TRACE_API(msg, ...) \ do { \ if (logAPIs()) \ _LIBUNWIND_LOG(msg, __VA_ARGS__); \ } while (0) - #define _LIBUNWIND_TRACING_UNWINDING logUnwinding() + #define _LIBUNWIND_TRACING_UNWINDING logUnwinding() #define _LIBUNWIND_TRACING_DWARF logDWARF() #define _LIBUNWIND_TRACE_UNWINDING(msg, ...) \ do { \ @@ -215,8 +215,8 @@ if (logDWARF()) \ fprintf(stderr, __VA_ARGS__); \ } while (0) -#endif - +#endif + #ifdef __cplusplus // Used to fit UnwindCursor and Registers_xxx types against unw_context_t / // unw_cursor_t sized memory blocks. @@ -237,5 +237,5 @@ struct check_fit { }; #undef COMP_OP #endif // __cplusplus - -#endif // LIBUNWIND_CONFIG_H + +#endif // LIBUNWIND_CONFIG_H diff --git a/contrib/libs/libunwind/src/dwarf2.h b/contrib/libs/libunwind/src/dwarf2.h index ec099388b2..174277d5a7 100644 --- a/contrib/libs/libunwind/src/dwarf2.h +++ b/contrib/libs/libunwind/src/dwarf2.h @@ -1,239 +1,239 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -//===----------------------------------------------------------------------===// - - -/* - These constants were taken from version 3 of the DWARF standard, - which is Copyright (c) 2005 Free Standards Group, and - Copyright (c) 1992, 1993 UNIX International, Inc. -*/ - -#ifndef __DWARF2__ -#define __DWARF2__ - -// DWARF unwind instructions -enum { - DW_CFA_nop = 0x0, - DW_CFA_set_loc = 0x1, - DW_CFA_advance_loc1 = 0x2, - DW_CFA_advance_loc2 = 0x3, - DW_CFA_advance_loc4 = 0x4, - DW_CFA_offset_extended = 0x5, - DW_CFA_restore_extended = 0x6, - DW_CFA_undefined = 0x7, - DW_CFA_same_value = 0x8, - DW_CFA_register = 0x9, - DW_CFA_remember_state = 0xA, - DW_CFA_restore_state = 0xB, - DW_CFA_def_cfa = 0xC, - DW_CFA_def_cfa_register = 0xD, - DW_CFA_def_cfa_offset = 0xE, - DW_CFA_def_cfa_expression = 0xF, - DW_CFA_expression = 0x10, - DW_CFA_offset_extended_sf = 0x11, - DW_CFA_def_cfa_sf = 0x12, - DW_CFA_def_cfa_offset_sf = 0x13, - DW_CFA_val_offset = 0x14, - DW_CFA_val_offset_sf = 0x15, - DW_CFA_val_expression = 0x16, - DW_CFA_advance_loc = 0x40, // high 2 bits are 0x1, lower 6 bits are delta - DW_CFA_offset = 0x80, // high 2 bits are 0x2, lower 6 bits are register - DW_CFA_restore = 0xC0, // high 2 bits are 0x3, lower 6 bits are register - - // GNU extensions - DW_CFA_GNU_window_save = 0x2D, - DW_CFA_GNU_args_size = 0x2E, +// +//===----------------------------------------------------------------------===// + + +/* + These constants were taken from version 3 of the DWARF standard, + which is Copyright (c) 2005 Free Standards Group, and + Copyright (c) 1992, 1993 UNIX International, Inc. +*/ + +#ifndef __DWARF2__ +#define __DWARF2__ + +// DWARF unwind instructions +enum { + DW_CFA_nop = 0x0, + DW_CFA_set_loc = 0x1, + DW_CFA_advance_loc1 = 0x2, + DW_CFA_advance_loc2 = 0x3, + DW_CFA_advance_loc4 = 0x4, + DW_CFA_offset_extended = 0x5, + DW_CFA_restore_extended = 0x6, + DW_CFA_undefined = 0x7, + DW_CFA_same_value = 0x8, + DW_CFA_register = 0x9, + DW_CFA_remember_state = 0xA, + DW_CFA_restore_state = 0xB, + DW_CFA_def_cfa = 0xC, + DW_CFA_def_cfa_register = 0xD, + DW_CFA_def_cfa_offset = 0xE, + DW_CFA_def_cfa_expression = 0xF, + DW_CFA_expression = 0x10, + DW_CFA_offset_extended_sf = 0x11, + DW_CFA_def_cfa_sf = 0x12, + DW_CFA_def_cfa_offset_sf = 0x13, + DW_CFA_val_offset = 0x14, + DW_CFA_val_offset_sf = 0x15, + DW_CFA_val_expression = 0x16, + DW_CFA_advance_loc = 0x40, // high 2 bits are 0x1, lower 6 bits are delta + DW_CFA_offset = 0x80, // high 2 bits are 0x2, lower 6 bits are register + DW_CFA_restore = 0xC0, // high 2 bits are 0x3, lower 6 bits are register + + // GNU extensions + DW_CFA_GNU_window_save = 0x2D, + DW_CFA_GNU_args_size = 0x2E, DW_CFA_GNU_negative_offset_extended = 0x2F, // AARCH64 extensions DW_CFA_AARCH64_negate_ra_state = 0x2D -}; - - -// FSF exception handling Pointer-Encoding constants -// Used in CFI augmentation by GCC -enum { - DW_EH_PE_ptr = 0x00, - DW_EH_PE_uleb128 = 0x01, - DW_EH_PE_udata2 = 0x02, - DW_EH_PE_udata4 = 0x03, - DW_EH_PE_udata8 = 0x04, - DW_EH_PE_signed = 0x08, - DW_EH_PE_sleb128 = 0x09, - DW_EH_PE_sdata2 = 0x0A, - DW_EH_PE_sdata4 = 0x0B, - DW_EH_PE_sdata8 = 0x0C, - DW_EH_PE_absptr = 0x00, - DW_EH_PE_pcrel = 0x10, - DW_EH_PE_textrel = 0x20, - DW_EH_PE_datarel = 0x30, - DW_EH_PE_funcrel = 0x40, - DW_EH_PE_aligned = 0x50, - DW_EH_PE_indirect = 0x80, - DW_EH_PE_omit = 0xFF -}; - - -// DWARF expressions -enum { - DW_OP_addr = 0x03, // constant address (size target specific) - DW_OP_deref = 0x06, - DW_OP_const1u = 0x08, // 1-byte constant - DW_OP_const1s = 0x09, // 1-byte constant - DW_OP_const2u = 0x0A, // 2-byte constant - DW_OP_const2s = 0x0B, // 2-byte constant - DW_OP_const4u = 0x0C, // 4-byte constant - DW_OP_const4s = 0x0D, // 4-byte constant - DW_OP_const8u = 0x0E, // 8-byte constant - DW_OP_const8s = 0x0F, // 8-byte constant - DW_OP_constu = 0x10, // ULEB128 constant - DW_OP_consts = 0x11, // SLEB128 constant - DW_OP_dup = 0x12, - DW_OP_drop = 0x13, - DW_OP_over = 0x14, - DW_OP_pick = 0x15, // 1-byte stack index - DW_OP_swap = 0x16, - DW_OP_rot = 0x17, - DW_OP_xderef = 0x18, - DW_OP_abs = 0x19, - DW_OP_and = 0x1A, - DW_OP_div = 0x1B, - DW_OP_minus = 0x1C, - DW_OP_mod = 0x1D, - DW_OP_mul = 0x1E, - DW_OP_neg = 0x1F, - DW_OP_not = 0x20, - DW_OP_or = 0x21, - DW_OP_plus = 0x22, - DW_OP_plus_uconst = 0x23, // ULEB128 addend - DW_OP_shl = 0x24, - DW_OP_shr = 0x25, - DW_OP_shra = 0x26, - DW_OP_xor = 0x27, - DW_OP_skip = 0x2F, // signed 2-byte constant - DW_OP_bra = 0x28, // signed 2-byte constant - DW_OP_eq = 0x29, - DW_OP_ge = 0x2A, - DW_OP_gt = 0x2B, - DW_OP_le = 0x2C, - DW_OP_lt = 0x2D, - DW_OP_ne = 0x2E, - DW_OP_lit0 = 0x30, // Literal 0 - DW_OP_lit1 = 0x31, // Literal 1 - DW_OP_lit2 = 0x32, // Literal 2 - DW_OP_lit3 = 0x33, // Literal 3 - DW_OP_lit4 = 0x34, // Literal 4 - DW_OP_lit5 = 0x35, // Literal 5 - DW_OP_lit6 = 0x36, // Literal 6 - DW_OP_lit7 = 0x37, // Literal 7 - DW_OP_lit8 = 0x38, // Literal 8 - DW_OP_lit9 = 0x39, // Literal 9 - DW_OP_lit10 = 0x3A, // Literal 10 - DW_OP_lit11 = 0x3B, // Literal 11 - DW_OP_lit12 = 0x3C, // Literal 12 - DW_OP_lit13 = 0x3D, // Literal 13 - DW_OP_lit14 = 0x3E, // Literal 14 - DW_OP_lit15 = 0x3F, // Literal 15 - DW_OP_lit16 = 0x40, // Literal 16 - DW_OP_lit17 = 0x41, // Literal 17 - DW_OP_lit18 = 0x42, // Literal 18 - DW_OP_lit19 = 0x43, // Literal 19 - DW_OP_lit20 = 0x44, // Literal 20 - DW_OP_lit21 = 0x45, // Literal 21 - DW_OP_lit22 = 0x46, // Literal 22 - DW_OP_lit23 = 0x47, // Literal 23 - DW_OP_lit24 = 0x48, // Literal 24 - DW_OP_lit25 = 0x49, // Literal 25 - DW_OP_lit26 = 0x4A, // Literal 26 - DW_OP_lit27 = 0x4B, // Literal 27 - DW_OP_lit28 = 0x4C, // Literal 28 - DW_OP_lit29 = 0x4D, // Literal 29 - DW_OP_lit30 = 0x4E, // Literal 30 - DW_OP_lit31 = 0x4F, // Literal 31 - DW_OP_reg0 = 0x50, // Contents of reg0 - DW_OP_reg1 = 0x51, // Contents of reg1 - DW_OP_reg2 = 0x52, // Contents of reg2 - DW_OP_reg3 = 0x53, // Contents of reg3 - DW_OP_reg4 = 0x54, // Contents of reg4 - DW_OP_reg5 = 0x55, // Contents of reg5 - DW_OP_reg6 = 0x56, // Contents of reg6 - DW_OP_reg7 = 0x57, // Contents of reg7 - DW_OP_reg8 = 0x58, // Contents of reg8 - DW_OP_reg9 = 0x59, // Contents of reg9 - DW_OP_reg10 = 0x5A, // Contents of reg10 - DW_OP_reg11 = 0x5B, // Contents of reg11 - DW_OP_reg12 = 0x5C, // Contents of reg12 - DW_OP_reg13 = 0x5D, // Contents of reg13 - DW_OP_reg14 = 0x5E, // Contents of reg14 - DW_OP_reg15 = 0x5F, // Contents of reg15 - DW_OP_reg16 = 0x60, // Contents of reg16 - DW_OP_reg17 = 0x61, // Contents of reg17 - DW_OP_reg18 = 0x62, // Contents of reg18 - DW_OP_reg19 = 0x63, // Contents of reg19 - DW_OP_reg20 = 0x64, // Contents of reg20 - DW_OP_reg21 = 0x65, // Contents of reg21 - DW_OP_reg22 = 0x66, // Contents of reg22 - DW_OP_reg23 = 0x67, // Contents of reg23 - DW_OP_reg24 = 0x68, // Contents of reg24 - DW_OP_reg25 = 0x69, // Contents of reg25 - DW_OP_reg26 = 0x6A, // Contents of reg26 - DW_OP_reg27 = 0x6B, // Contents of reg27 - DW_OP_reg28 = 0x6C, // Contents of reg28 - DW_OP_reg29 = 0x6D, // Contents of reg29 - DW_OP_reg30 = 0x6E, // Contents of reg30 - DW_OP_reg31 = 0x6F, // Contents of reg31 - DW_OP_breg0 = 0x70, // base register 0 + SLEB128 offset - DW_OP_breg1 = 0x71, // base register 1 + SLEB128 offset - DW_OP_breg2 = 0x72, // base register 2 + SLEB128 offset - DW_OP_breg3 = 0x73, // base register 3 + SLEB128 offset - DW_OP_breg4 = 0x74, // base register 4 + SLEB128 offset - DW_OP_breg5 = 0x75, // base register 5 + SLEB128 offset - DW_OP_breg6 = 0x76, // base register 6 + SLEB128 offset - DW_OP_breg7 = 0x77, // base register 7 + SLEB128 offset - DW_OP_breg8 = 0x78, // base register 8 + SLEB128 offset - DW_OP_breg9 = 0x79, // base register 9 + SLEB128 offset - DW_OP_breg10 = 0x7A, // base register 10 + SLEB128 offset - DW_OP_breg11 = 0x7B, // base register 11 + SLEB128 offset - DW_OP_breg12 = 0x7C, // base register 12 + SLEB128 offset - DW_OP_breg13 = 0x7D, // base register 13 + SLEB128 offset - DW_OP_breg14 = 0x7E, // base register 14 + SLEB128 offset - DW_OP_breg15 = 0x7F, // base register 15 + SLEB128 offset - DW_OP_breg16 = 0x80, // base register 16 + SLEB128 offset - DW_OP_breg17 = 0x81, // base register 17 + SLEB128 offset - DW_OP_breg18 = 0x82, // base register 18 + SLEB128 offset - DW_OP_breg19 = 0x83, // base register 19 + SLEB128 offset - DW_OP_breg20 = 0x84, // base register 20 + SLEB128 offset - DW_OP_breg21 = 0x85, // base register 21 + SLEB128 offset - DW_OP_breg22 = 0x86, // base register 22 + SLEB128 offset - DW_OP_breg23 = 0x87, // base register 23 + SLEB128 offset - DW_OP_breg24 = 0x88, // base register 24 + SLEB128 offset - DW_OP_breg25 = 0x89, // base register 25 + SLEB128 offset - DW_OP_breg26 = 0x8A, // base register 26 + SLEB128 offset - DW_OP_breg27 = 0x8B, // base register 27 + SLEB128 offset - DW_OP_breg28 = 0x8C, // base register 28 + SLEB128 offset - DW_OP_breg29 = 0x8D, // base register 29 + SLEB128 offset - DW_OP_breg30 = 0x8E, // base register 30 + SLEB128 offset - DW_OP_breg31 = 0x8F, // base register 31 + SLEB128 offset - DW_OP_regx = 0x90, // ULEB128 register - DW_OP_fbreg = 0x91, // SLEB128 offset - DW_OP_bregx = 0x92, // ULEB128 register followed by SLEB128 offset - DW_OP_piece = 0x93, // ULEB128 size of piece addressed - DW_OP_deref_size = 0x94, // 1-byte size of data retrieved - DW_OP_xderef_size = 0x95, // 1-byte size of data retrieved - DW_OP_nop = 0x96, - DW_OP_push_object_addres = 0x97, - DW_OP_call2 = 0x98, // 2-byte offset of DIE - DW_OP_call4 = 0x99, // 4-byte offset of DIE - DW_OP_call_ref = 0x9A, // 4- or 8-byte offset of DIE - DW_OP_lo_user = 0xE0, - DW_OP_APPLE_uninit = 0xF0, - DW_OP_hi_user = 0xFF -}; - - -#endif +}; + + +// FSF exception handling Pointer-Encoding constants +// Used in CFI augmentation by GCC +enum { + DW_EH_PE_ptr = 0x00, + DW_EH_PE_uleb128 = 0x01, + DW_EH_PE_udata2 = 0x02, + DW_EH_PE_udata4 = 0x03, + DW_EH_PE_udata8 = 0x04, + DW_EH_PE_signed = 0x08, + DW_EH_PE_sleb128 = 0x09, + DW_EH_PE_sdata2 = 0x0A, + DW_EH_PE_sdata4 = 0x0B, + DW_EH_PE_sdata8 = 0x0C, + DW_EH_PE_absptr = 0x00, + DW_EH_PE_pcrel = 0x10, + DW_EH_PE_textrel = 0x20, + DW_EH_PE_datarel = 0x30, + DW_EH_PE_funcrel = 0x40, + DW_EH_PE_aligned = 0x50, + DW_EH_PE_indirect = 0x80, + DW_EH_PE_omit = 0xFF +}; + + +// DWARF expressions +enum { + DW_OP_addr = 0x03, // constant address (size target specific) + DW_OP_deref = 0x06, + DW_OP_const1u = 0x08, // 1-byte constant + DW_OP_const1s = 0x09, // 1-byte constant + DW_OP_const2u = 0x0A, // 2-byte constant + DW_OP_const2s = 0x0B, // 2-byte constant + DW_OP_const4u = 0x0C, // 4-byte constant + DW_OP_const4s = 0x0D, // 4-byte constant + DW_OP_const8u = 0x0E, // 8-byte constant + DW_OP_const8s = 0x0F, // 8-byte constant + DW_OP_constu = 0x10, // ULEB128 constant + DW_OP_consts = 0x11, // SLEB128 constant + DW_OP_dup = 0x12, + DW_OP_drop = 0x13, + DW_OP_over = 0x14, + DW_OP_pick = 0x15, // 1-byte stack index + DW_OP_swap = 0x16, + DW_OP_rot = 0x17, + DW_OP_xderef = 0x18, + DW_OP_abs = 0x19, + DW_OP_and = 0x1A, + DW_OP_div = 0x1B, + DW_OP_minus = 0x1C, + DW_OP_mod = 0x1D, + DW_OP_mul = 0x1E, + DW_OP_neg = 0x1F, + DW_OP_not = 0x20, + DW_OP_or = 0x21, + DW_OP_plus = 0x22, + DW_OP_plus_uconst = 0x23, // ULEB128 addend + DW_OP_shl = 0x24, + DW_OP_shr = 0x25, + DW_OP_shra = 0x26, + DW_OP_xor = 0x27, + DW_OP_skip = 0x2F, // signed 2-byte constant + DW_OP_bra = 0x28, // signed 2-byte constant + DW_OP_eq = 0x29, + DW_OP_ge = 0x2A, + DW_OP_gt = 0x2B, + DW_OP_le = 0x2C, + DW_OP_lt = 0x2D, + DW_OP_ne = 0x2E, + DW_OP_lit0 = 0x30, // Literal 0 + DW_OP_lit1 = 0x31, // Literal 1 + DW_OP_lit2 = 0x32, // Literal 2 + DW_OP_lit3 = 0x33, // Literal 3 + DW_OP_lit4 = 0x34, // Literal 4 + DW_OP_lit5 = 0x35, // Literal 5 + DW_OP_lit6 = 0x36, // Literal 6 + DW_OP_lit7 = 0x37, // Literal 7 + DW_OP_lit8 = 0x38, // Literal 8 + DW_OP_lit9 = 0x39, // Literal 9 + DW_OP_lit10 = 0x3A, // Literal 10 + DW_OP_lit11 = 0x3B, // Literal 11 + DW_OP_lit12 = 0x3C, // Literal 12 + DW_OP_lit13 = 0x3D, // Literal 13 + DW_OP_lit14 = 0x3E, // Literal 14 + DW_OP_lit15 = 0x3F, // Literal 15 + DW_OP_lit16 = 0x40, // Literal 16 + DW_OP_lit17 = 0x41, // Literal 17 + DW_OP_lit18 = 0x42, // Literal 18 + DW_OP_lit19 = 0x43, // Literal 19 + DW_OP_lit20 = 0x44, // Literal 20 + DW_OP_lit21 = 0x45, // Literal 21 + DW_OP_lit22 = 0x46, // Literal 22 + DW_OP_lit23 = 0x47, // Literal 23 + DW_OP_lit24 = 0x48, // Literal 24 + DW_OP_lit25 = 0x49, // Literal 25 + DW_OP_lit26 = 0x4A, // Literal 26 + DW_OP_lit27 = 0x4B, // Literal 27 + DW_OP_lit28 = 0x4C, // Literal 28 + DW_OP_lit29 = 0x4D, // Literal 29 + DW_OP_lit30 = 0x4E, // Literal 30 + DW_OP_lit31 = 0x4F, // Literal 31 + DW_OP_reg0 = 0x50, // Contents of reg0 + DW_OP_reg1 = 0x51, // Contents of reg1 + DW_OP_reg2 = 0x52, // Contents of reg2 + DW_OP_reg3 = 0x53, // Contents of reg3 + DW_OP_reg4 = 0x54, // Contents of reg4 + DW_OP_reg5 = 0x55, // Contents of reg5 + DW_OP_reg6 = 0x56, // Contents of reg6 + DW_OP_reg7 = 0x57, // Contents of reg7 + DW_OP_reg8 = 0x58, // Contents of reg8 + DW_OP_reg9 = 0x59, // Contents of reg9 + DW_OP_reg10 = 0x5A, // Contents of reg10 + DW_OP_reg11 = 0x5B, // Contents of reg11 + DW_OP_reg12 = 0x5C, // Contents of reg12 + DW_OP_reg13 = 0x5D, // Contents of reg13 + DW_OP_reg14 = 0x5E, // Contents of reg14 + DW_OP_reg15 = 0x5F, // Contents of reg15 + DW_OP_reg16 = 0x60, // Contents of reg16 + DW_OP_reg17 = 0x61, // Contents of reg17 + DW_OP_reg18 = 0x62, // Contents of reg18 + DW_OP_reg19 = 0x63, // Contents of reg19 + DW_OP_reg20 = 0x64, // Contents of reg20 + DW_OP_reg21 = 0x65, // Contents of reg21 + DW_OP_reg22 = 0x66, // Contents of reg22 + DW_OP_reg23 = 0x67, // Contents of reg23 + DW_OP_reg24 = 0x68, // Contents of reg24 + DW_OP_reg25 = 0x69, // Contents of reg25 + DW_OP_reg26 = 0x6A, // Contents of reg26 + DW_OP_reg27 = 0x6B, // Contents of reg27 + DW_OP_reg28 = 0x6C, // Contents of reg28 + DW_OP_reg29 = 0x6D, // Contents of reg29 + DW_OP_reg30 = 0x6E, // Contents of reg30 + DW_OP_reg31 = 0x6F, // Contents of reg31 + DW_OP_breg0 = 0x70, // base register 0 + SLEB128 offset + DW_OP_breg1 = 0x71, // base register 1 + SLEB128 offset + DW_OP_breg2 = 0x72, // base register 2 + SLEB128 offset + DW_OP_breg3 = 0x73, // base register 3 + SLEB128 offset + DW_OP_breg4 = 0x74, // base register 4 + SLEB128 offset + DW_OP_breg5 = 0x75, // base register 5 + SLEB128 offset + DW_OP_breg6 = 0x76, // base register 6 + SLEB128 offset + DW_OP_breg7 = 0x77, // base register 7 + SLEB128 offset + DW_OP_breg8 = 0x78, // base register 8 + SLEB128 offset + DW_OP_breg9 = 0x79, // base register 9 + SLEB128 offset + DW_OP_breg10 = 0x7A, // base register 10 + SLEB128 offset + DW_OP_breg11 = 0x7B, // base register 11 + SLEB128 offset + DW_OP_breg12 = 0x7C, // base register 12 + SLEB128 offset + DW_OP_breg13 = 0x7D, // base register 13 + SLEB128 offset + DW_OP_breg14 = 0x7E, // base register 14 + SLEB128 offset + DW_OP_breg15 = 0x7F, // base register 15 + SLEB128 offset + DW_OP_breg16 = 0x80, // base register 16 + SLEB128 offset + DW_OP_breg17 = 0x81, // base register 17 + SLEB128 offset + DW_OP_breg18 = 0x82, // base register 18 + SLEB128 offset + DW_OP_breg19 = 0x83, // base register 19 + SLEB128 offset + DW_OP_breg20 = 0x84, // base register 20 + SLEB128 offset + DW_OP_breg21 = 0x85, // base register 21 + SLEB128 offset + DW_OP_breg22 = 0x86, // base register 22 + SLEB128 offset + DW_OP_breg23 = 0x87, // base register 23 + SLEB128 offset + DW_OP_breg24 = 0x88, // base register 24 + SLEB128 offset + DW_OP_breg25 = 0x89, // base register 25 + SLEB128 offset + DW_OP_breg26 = 0x8A, // base register 26 + SLEB128 offset + DW_OP_breg27 = 0x8B, // base register 27 + SLEB128 offset + DW_OP_breg28 = 0x8C, // base register 28 + SLEB128 offset + DW_OP_breg29 = 0x8D, // base register 29 + SLEB128 offset + DW_OP_breg30 = 0x8E, // base register 30 + SLEB128 offset + DW_OP_breg31 = 0x8F, // base register 31 + SLEB128 offset + DW_OP_regx = 0x90, // ULEB128 register + DW_OP_fbreg = 0x91, // SLEB128 offset + DW_OP_bregx = 0x92, // ULEB128 register followed by SLEB128 offset + DW_OP_piece = 0x93, // ULEB128 size of piece addressed + DW_OP_deref_size = 0x94, // 1-byte size of data retrieved + DW_OP_xderef_size = 0x95, // 1-byte size of data retrieved + DW_OP_nop = 0x96, + DW_OP_push_object_addres = 0x97, + DW_OP_call2 = 0x98, // 2-byte offset of DIE + DW_OP_call4 = 0x99, // 4-byte offset of DIE + DW_OP_call_ref = 0x9A, // 4- or 8-byte offset of DIE + DW_OP_lo_user = 0xE0, + DW_OP_APPLE_uninit = 0xF0, + DW_OP_hi_user = 0xFF +}; + + +#endif diff --git a/contrib/libs/libunwind/src/libunwind.cpp b/contrib/libs/libunwind/src/libunwind.cpp index 7c47a76799..03f8b75b5b 100644 --- a/contrib/libs/libunwind/src/libunwind.cpp +++ b/contrib/libs/libunwind/src/libunwind.cpp @@ -1,21 +1,21 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Implements unw_* functions from <libunwind.h> -// -//===----------------------------------------------------------------------===// - -#include <libunwind.h> - +// +// +// Implements unw_* functions from <libunwind.h> +// +//===----------------------------------------------------------------------===// + +#include <libunwind.h> + #include "config.h" -#include "libunwind_ext.h" - -#include <stdlib.h> - +#include "libunwind_ext.h" + +#include <stdlib.h> + // Define the __has_feature extension for compilers that do not support it so // that we can later check for the presence of ASan in a compiler-neutral way. #if !defined(__has_feature) @@ -28,26 +28,26 @@ #if !defined(__USING_SJLJ_EXCEPTIONS__) #include "AddressSpace.hpp" -#include "UnwindCursor.hpp" - -using namespace libunwind; - -/// internal object to represent this processes address space -LocalAddressSpace LocalAddressSpace::sThisAddressSpace; - -_LIBUNWIND_EXPORT unw_addr_space_t unw_local_addr_space = - (unw_addr_space_t)&LocalAddressSpace::sThisAddressSpace; - -/// Create a cursor of a thread in this process given 'context' recorded by +#include "UnwindCursor.hpp" + +using namespace libunwind; + +/// internal object to represent this processes address space +LocalAddressSpace LocalAddressSpace::sThisAddressSpace; + +_LIBUNWIND_EXPORT unw_addr_space_t unw_local_addr_space = + (unw_addr_space_t)&LocalAddressSpace::sThisAddressSpace; + +/// Create a cursor of a thread in this process given 'context' recorded by /// __unw_getcontext(). _LIBUNWIND_HIDDEN int __unw_init_local(unw_cursor_t *cursor, unw_context_t *context) { _LIBUNWIND_TRACE_API("__unw_init_local(cursor=%p, context=%p)", - static_cast<void *>(cursor), - static_cast<void *>(context)); -#if defined(__i386__) + static_cast<void *>(cursor), + static_cast<void *>(context)); +#if defined(__i386__) # define REGISTER_KIND Registers_x86 -#elif defined(__x86_64__) +#elif defined(__x86_64__) # define REGISTER_KIND Registers_x86_64 #elif defined(__powerpc64__) # define REGISTER_KIND Registers_ppc64 @@ -57,7 +57,7 @@ _LIBUNWIND_HIDDEN int __unw_init_local(unw_cursor_t *cursor, # define REGISTER_KIND Registers_arm64 #elif defined(__arm__) # define REGISTER_KIND Registers_arm -#elif defined(__or1k__) +#elif defined(__or1k__) # define REGISTER_KIND Registers_or1k #elif defined(__hexagon__) # define REGISTER_KIND Registers_hexagon @@ -65,7 +65,7 @@ _LIBUNWIND_HIDDEN int __unw_init_local(unw_cursor_t *cursor, # define REGISTER_KIND Registers_mips_o32 #elif defined(__mips64) # define REGISTER_KIND Registers_mips_newabi -#elif defined(__mips__) +#elif defined(__mips__) # warning The MIPS architecture is not supported with this ABI and environment! #elif defined(__sparc__) && defined(__arch64__) #define REGISTER_KIND Registers_sparc64 @@ -75,53 +75,53 @@ _LIBUNWIND_HIDDEN int __unw_init_local(unw_cursor_t *cursor, # define REGISTER_KIND Registers_riscv #elif defined(__ve__) # define REGISTER_KIND Registers_ve -#else +#else # error Architecture not supported -#endif +#endif // Use "placement new" to allocate UnwindCursor in the cursor buffer. new (reinterpret_cast<UnwindCursor<LocalAddressSpace, REGISTER_KIND> *>(cursor)) UnwindCursor<LocalAddressSpace, REGISTER_KIND>( context, LocalAddressSpace::sThisAddressSpace); #undef REGISTER_KIND - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - co->setInfoBasedOnIPRegister(); - - return UNW_ESUCCESS; -} + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + co->setInfoBasedOnIPRegister(); + + return UNW_ESUCCESS; +} _LIBUNWIND_WEAK_ALIAS(__unw_init_local, unw_init_local) - -/// Get value of specified register at cursor position in stack frame. + +/// Get value of specified register at cursor position in stack frame. _LIBUNWIND_HIDDEN int __unw_get_reg(unw_cursor_t *cursor, unw_regnum_t regNum, unw_word_t *value) { _LIBUNWIND_TRACE_API("__unw_get_reg(cursor=%p, regNum=%d, &value=%p)", - static_cast<void *>(cursor), regNum, - static_cast<void *>(value)); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - if (co->validReg(regNum)) { - *value = co->getReg(regNum); - return UNW_ESUCCESS; - } - return UNW_EBADREG; -} + static_cast<void *>(cursor), regNum, + static_cast<void *>(value)); + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + if (co->validReg(regNum)) { + *value = co->getReg(regNum); + return UNW_ESUCCESS; + } + return UNW_EBADREG; +} _LIBUNWIND_WEAK_ALIAS(__unw_get_reg, unw_get_reg) - -/// Set value of specified register at cursor position in stack frame. + +/// Set value of specified register at cursor position in stack frame. _LIBUNWIND_HIDDEN int __unw_set_reg(unw_cursor_t *cursor, unw_regnum_t regNum, unw_word_t value) { _LIBUNWIND_TRACE_API("__unw_set_reg(cursor=%p, regNum=%d, value=0x%" PRIxPTR ")", static_cast<void *>(cursor), regNum, value); - typedef LocalAddressSpace::pint_t pint_t; - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - if (co->validReg(regNum)) { - co->setReg(regNum, (pint_t)value); - // specical case altering IP to re-find info (being called by personality - // function) + typedef LocalAddressSpace::pint_t pint_t; + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + if (co->validReg(regNum)) { + co->setReg(regNum, (pint_t)value); + // specical case altering IP to re-find info (being called by personality + // function) if (regNum == UNW_REG_IP) { unw_proc_info_t info; // First, get the FDE for the old location and then update it. co->getInfo(&info); - co->setInfoBasedOnIPRegister(false); + co->setInfoBasedOnIPRegister(false); // If the original call expects stack adjustment, perform this now. // Normal frame unwinding would have included the offset already in the // CFA computation. @@ -131,169 +131,169 @@ _LIBUNWIND_HIDDEN int __unw_set_reg(unw_cursor_t *cursor, unw_regnum_t regNum, if (info.gp) co->setReg(UNW_REG_SP, co->getReg(UNW_REG_SP) + info.gp); } - return UNW_ESUCCESS; - } - return UNW_EBADREG; -} + return UNW_ESUCCESS; + } + return UNW_EBADREG; +} _LIBUNWIND_WEAK_ALIAS(__unw_set_reg, unw_set_reg) - -/// Get value of specified float register at cursor position in stack frame. + +/// Get value of specified float register at cursor position in stack frame. _LIBUNWIND_HIDDEN int __unw_get_fpreg(unw_cursor_t *cursor, unw_regnum_t regNum, unw_fpreg_t *value) { _LIBUNWIND_TRACE_API("__unw_get_fpreg(cursor=%p, regNum=%d, &value=%p)", - static_cast<void *>(cursor), regNum, - static_cast<void *>(value)); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - if (co->validFloatReg(regNum)) { - *value = co->getFloatReg(regNum); - return UNW_ESUCCESS; - } - return UNW_EBADREG; -} + static_cast<void *>(cursor), regNum, + static_cast<void *>(value)); + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + if (co->validFloatReg(regNum)) { + *value = co->getFloatReg(regNum); + return UNW_ESUCCESS; + } + return UNW_EBADREG; +} _LIBUNWIND_WEAK_ALIAS(__unw_get_fpreg, unw_get_fpreg) - -/// Set value of specified float register at cursor position in stack frame. + +/// Set value of specified float register at cursor position in stack frame. _LIBUNWIND_HIDDEN int __unw_set_fpreg(unw_cursor_t *cursor, unw_regnum_t regNum, unw_fpreg_t value) { #if defined(_LIBUNWIND_ARM_EHABI) _LIBUNWIND_TRACE_API("__unw_set_fpreg(cursor=%p, regNum=%d, value=%llX)", - static_cast<void *>(cursor), regNum, value); -#else + static_cast<void *>(cursor), regNum, value); +#else _LIBUNWIND_TRACE_API("__unw_set_fpreg(cursor=%p, regNum=%d, value=%g)", - static_cast<void *>(cursor), regNum, value); -#endif - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - if (co->validFloatReg(regNum)) { - co->setFloatReg(regNum, value); - return UNW_ESUCCESS; - } - return UNW_EBADREG; -} + static_cast<void *>(cursor), regNum, value); +#endif + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + if (co->validFloatReg(regNum)) { + co->setFloatReg(regNum, value); + return UNW_ESUCCESS; + } + return UNW_EBADREG; +} _LIBUNWIND_WEAK_ALIAS(__unw_set_fpreg, unw_set_fpreg) - -/// Move cursor to next frame. + +/// Move cursor to next frame. _LIBUNWIND_HIDDEN int __unw_step(unw_cursor_t *cursor) { _LIBUNWIND_TRACE_API("__unw_step(cursor=%p)", static_cast<void *>(cursor)); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - return co->step(); -} + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + return co->step(); +} _LIBUNWIND_WEAK_ALIAS(__unw_step, unw_step) - -/// Get unwind info at cursor position in stack frame. + +/// Get unwind info at cursor position in stack frame. _LIBUNWIND_HIDDEN int __unw_get_proc_info(unw_cursor_t *cursor, unw_proc_info_t *info) { _LIBUNWIND_TRACE_API("__unw_get_proc_info(cursor=%p, &info=%p)", - static_cast<void *>(cursor), static_cast<void *>(info)); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - co->getInfo(info); - if (info->end_ip == 0) - return UNW_ENOINFO; + static_cast<void *>(cursor), static_cast<void *>(info)); + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + co->getInfo(info); + if (info->end_ip == 0) + return UNW_ENOINFO; return UNW_ESUCCESS; -} +} _LIBUNWIND_WEAK_ALIAS(__unw_get_proc_info, unw_get_proc_info) - -/// Resume execution at cursor position (aka longjump). + +/// Resume execution at cursor position (aka longjump). _LIBUNWIND_HIDDEN int __unw_resume(unw_cursor_t *cursor) { _LIBUNWIND_TRACE_API("__unw_resume(cursor=%p)", static_cast<void *>(cursor)); #if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__) // Inform the ASan runtime that now might be a good time to clean stuff up. __asan_handle_no_return(); #endif - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - co->jumpto(); - return UNW_EUNSPEC; -} + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + co->jumpto(); + return UNW_EUNSPEC; +} _LIBUNWIND_WEAK_ALIAS(__unw_resume, unw_resume) - -/// Get name of function at cursor position in stack frame. + +/// Get name of function at cursor position in stack frame. _LIBUNWIND_HIDDEN int __unw_get_proc_name(unw_cursor_t *cursor, char *buf, size_t bufLen, unw_word_t *offset) { _LIBUNWIND_TRACE_API("__unw_get_proc_name(cursor=%p, &buf=%p, bufLen=%lu)", - static_cast<void *>(cursor), static_cast<void *>(buf), - static_cast<unsigned long>(bufLen)); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - if (co->getFunctionName(buf, bufLen, offset)) - return UNW_ESUCCESS; + static_cast<void *>(cursor), static_cast<void *>(buf), + static_cast<unsigned long>(bufLen)); + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + if (co->getFunctionName(buf, bufLen, offset)) + return UNW_ESUCCESS; return UNW_EUNSPEC; -} +} _LIBUNWIND_WEAK_ALIAS(__unw_get_proc_name, unw_get_proc_name) - -/// Checks if a register is a floating-point register. + +/// Checks if a register is a floating-point register. _LIBUNWIND_HIDDEN int __unw_is_fpreg(unw_cursor_t *cursor, unw_regnum_t regNum) { _LIBUNWIND_TRACE_API("__unw_is_fpreg(cursor=%p, regNum=%d)", - static_cast<void *>(cursor), regNum); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - return co->validFloatReg(regNum); -} + static_cast<void *>(cursor), regNum); + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + return co->validFloatReg(regNum); +} _LIBUNWIND_WEAK_ALIAS(__unw_is_fpreg, unw_is_fpreg) - -/// Checks if a register is a floating-point register. + +/// Checks if a register is a floating-point register. _LIBUNWIND_HIDDEN const char *__unw_regname(unw_cursor_t *cursor, unw_regnum_t regNum) { _LIBUNWIND_TRACE_API("__unw_regname(cursor=%p, regNum=%d)", - static_cast<void *>(cursor), regNum); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - return co->getRegisterName(regNum); -} + static_cast<void *>(cursor), regNum); + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + return co->getRegisterName(regNum); +} _LIBUNWIND_WEAK_ALIAS(__unw_regname, unw_regname) - -/// Checks if current frame is signal trampoline. + +/// Checks if current frame is signal trampoline. _LIBUNWIND_HIDDEN int __unw_is_signal_frame(unw_cursor_t *cursor) { _LIBUNWIND_TRACE_API("__unw_is_signal_frame(cursor=%p)", - static_cast<void *>(cursor)); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - return co->isSignalFrame(); -} + static_cast<void *>(cursor)); + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + return co->isSignalFrame(); +} _LIBUNWIND_WEAK_ALIAS(__unw_is_signal_frame, unw_is_signal_frame) - -#ifdef __arm__ -// Save VFP registers d0-d15 using FSTMIADX instead of FSTMIADD + +#ifdef __arm__ +// Save VFP registers d0-d15 using FSTMIADX instead of FSTMIADD _LIBUNWIND_HIDDEN void __unw_save_vfp_as_X(unw_cursor_t *cursor) { _LIBUNWIND_TRACE_API("__unw_get_fpreg_save_vfp_as_X(cursor=%p)", - static_cast<void *>(cursor)); - AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; - return co->saveVFPAsX(); -} + static_cast<void *>(cursor)); + AbstractUnwindCursor *co = (AbstractUnwindCursor *)cursor; + return co->saveVFPAsX(); +} _LIBUNWIND_WEAK_ALIAS(__unw_save_vfp_as_X, unw_save_vfp_as_X) -#endif - - +#endif + + #if defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) /// SPI: walks cached DWARF entries _LIBUNWIND_HIDDEN void __unw_iterate_dwarf_unwind_cache(void (*func)( - unw_word_t ip_start, unw_word_t ip_end, unw_word_t fde, unw_word_t mh)) { + unw_word_t ip_start, unw_word_t ip_end, unw_word_t fde, unw_word_t mh)) { _LIBUNWIND_TRACE_API("__unw_iterate_dwarf_unwind_cache(func=%p)", - reinterpret_cast<void *>(func)); - DwarfFDECache<LocalAddressSpace>::iterateCacheEntries(func); -} + reinterpret_cast<void *>(func)); + DwarfFDECache<LocalAddressSpace>::iterateCacheEntries(func); +} _LIBUNWIND_WEAK_ALIAS(__unw_iterate_dwarf_unwind_cache, unw_iterate_dwarf_unwind_cache) - -/// IPI: for __register_frame() + +/// IPI: for __register_frame() void __unw_add_dynamic_fde(unw_word_t fde) { - CFI_Parser<LocalAddressSpace>::FDE_Info fdeInfo; - CFI_Parser<LocalAddressSpace>::CIE_Info cieInfo; - const char *message = CFI_Parser<LocalAddressSpace>::decodeFDE( - LocalAddressSpace::sThisAddressSpace, - (LocalAddressSpace::pint_t) fde, &fdeInfo, &cieInfo); - if (message == NULL) { - // dynamically registered FDEs don't have a mach_header group they are in. - // Use fde as mh_group - unw_word_t mh_group = fdeInfo.fdeStart; - DwarfFDECache<LocalAddressSpace>::add((LocalAddressSpace::pint_t)mh_group, - fdeInfo.pcStart, fdeInfo.pcEnd, - fdeInfo.fdeStart); - } else { + CFI_Parser<LocalAddressSpace>::FDE_Info fdeInfo; + CFI_Parser<LocalAddressSpace>::CIE_Info cieInfo; + const char *message = CFI_Parser<LocalAddressSpace>::decodeFDE( + LocalAddressSpace::sThisAddressSpace, + (LocalAddressSpace::pint_t) fde, &fdeInfo, &cieInfo); + if (message == NULL) { + // dynamically registered FDEs don't have a mach_header group they are in. + // Use fde as mh_group + unw_word_t mh_group = fdeInfo.fdeStart; + DwarfFDECache<LocalAddressSpace>::add((LocalAddressSpace::pint_t)mh_group, + fdeInfo.pcStart, fdeInfo.pcEnd, + fdeInfo.fdeStart); + } else { _LIBUNWIND_DEBUG_LOG("__unw_add_dynamic_fde: bad fde: %s", message); - } -} - -/// IPI: for __deregister_frame() + } +} + +/// IPI: for __deregister_frame() void __unw_remove_dynamic_fde(unw_word_t fde) { - // fde is own mh_group + // fde is own mh_group DwarfFDECache<LocalAddressSpace>::removeAllIn((LocalAddressSpace::pint_t)fde); -} +} void __unw_add_dynamic_eh_frame_section(unw_word_t eh_frame_start) { // The eh_frame section start serves as the mh_group @@ -325,37 +325,37 @@ void __unw_remove_dynamic_eh_frame_section(unw_word_t eh_frame_start) { #endif // defined(_LIBUNWIND_SUPPORT_DWARF_UNWIND) #endif // !defined(__USING_SJLJ_EXCEPTIONS__) - - - -// Add logging hooks in Debug builds only -#ifndef NDEBUG -#include <stdlib.h> - -_LIBUNWIND_HIDDEN -bool logAPIs() { - // do manual lock to avoid use of _cxa_guard_acquire or initializers - static bool checked = false; - static bool log = false; - if (!checked) { - log = (getenv("LIBUNWIND_PRINT_APIS") != NULL); - checked = true; - } - return log; -} - -_LIBUNWIND_HIDDEN -bool logUnwinding() { - // do manual lock to avoid use of _cxa_guard_acquire or initializers - static bool checked = false; - static bool log = false; - if (!checked) { - log = (getenv("LIBUNWIND_PRINT_UNWINDING") != NULL); - checked = true; - } - return log; -} - + + + +// Add logging hooks in Debug builds only +#ifndef NDEBUG +#include <stdlib.h> + +_LIBUNWIND_HIDDEN +bool logAPIs() { + // do manual lock to avoid use of _cxa_guard_acquire or initializers + static bool checked = false; + static bool log = false; + if (!checked) { + log = (getenv("LIBUNWIND_PRINT_APIS") != NULL); + checked = true; + } + return log; +} + +_LIBUNWIND_HIDDEN +bool logUnwinding() { + // do manual lock to avoid use of _cxa_guard_acquire or initializers + static bool checked = false; + static bool log = false; + if (!checked) { + log = (getenv("LIBUNWIND_PRINT_UNWINDING") != NULL); + checked = true; + } + return log; +} + _LIBUNWIND_HIDDEN bool logDWARF() { // do manual lock to avoid use of _cxa_guard_acquire or initializers @@ -368,5 +368,5 @@ bool logDWARF() { return log; } -#endif // NDEBUG +#endif // NDEBUG diff --git a/contrib/libs/libunwind/src/libunwind_ext.h b/contrib/libs/libunwind/src/libunwind_ext.h index d543ce129e..7065ffcdae 100644 --- a/contrib/libs/libunwind/src/libunwind_ext.h +++ b/contrib/libs/libunwind/src/libunwind_ext.h @@ -1,27 +1,27 @@ //===----------------------------------------------------------------------===// -// +// // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception -// -// -// Extensions to libunwind API. -// -//===----------------------------------------------------------------------===// - -#ifndef __LIBUNWIND_EXT__ -#define __LIBUNWIND_EXT__ - -#include "config.h" -#include <libunwind.h> -#include <unwind.h> - -#define UNW_STEP_SUCCESS 1 -#define UNW_STEP_END 0 - -#ifdef __cplusplus -extern "C" { -#endif +// +// +// Extensions to libunwind API. +// +//===----------------------------------------------------------------------===// + +#ifndef __LIBUNWIND_EXT__ +#define __LIBUNWIND_EXT__ + +#include "config.h" +#include <libunwind.h> +#include <unwind.h> + +#define UNW_STEP_SUCCESS 1 +#define UNW_STEP_END 0 + +#ifdef __cplusplus +extern "C" { +#endif extern int __unw_getcontext(unw_context_t *); extern int __unw_init_local(unw_cursor_t *, unw_context_t *); @@ -43,26 +43,26 @@ extern int __unw_is_fpreg(unw_cursor_t *, unw_regnum_t); extern int __unw_is_signal_frame(unw_cursor_t *); extern int __unw_get_proc_name(unw_cursor_t *, char *, size_t, unw_word_t *); -// SPI +// SPI extern void __unw_iterate_dwarf_unwind_cache(void (*func)( unw_word_t ip_start, unw_word_t ip_end, unw_word_t fde, unw_word_t mh)); - -// IPI + +// IPI extern void __unw_add_dynamic_fde(unw_word_t fde); extern void __unw_remove_dynamic_fde(unw_word_t fde); - + extern void __unw_add_dynamic_eh_frame_section(unw_word_t eh_frame_start); extern void __unw_remove_dynamic_eh_frame_section(unw_word_t eh_frame_start); #if defined(_LIBUNWIND_ARM_EHABI) -extern const uint32_t* decode_eht_entry(const uint32_t*, size_t*, size_t*); -extern _Unwind_Reason_Code _Unwind_VRS_Interpret(_Unwind_Context *context, - const uint32_t *data, - size_t offset, size_t len); -#endif - -#ifdef __cplusplus -} -#endif - -#endif // __LIBUNWIND_EXT__ +extern const uint32_t* decode_eht_entry(const uint32_t*, size_t*, size_t*); +extern _Unwind_Reason_Code _Unwind_VRS_Interpret(_Unwind_Context *context, + const uint32_t *data, + size_t offset, size_t len); +#endif + +#ifdef __cplusplus +} +#endif + +#endif // __LIBUNWIND_EXT__ diff --git a/contrib/libs/libunwind/ya.make b/contrib/libs/libunwind/ya.make index 39141abcdb..2d1aa635d4 100644 --- a/contrib/libs/libunwind/ya.make +++ b/contrib/libs/libunwind/ya.make @@ -1,15 +1,15 @@ # Generated by devtools/yamaker from nixpkgs 21.11. -LIBRARY() - +LIBRARY() + OWNER( pg somov g:cpp-contrib ) - + VERSION(2022-02-05) - + ORIGINAL_SOURCE(https://github.com/llvm/llvm-project/archive/2b9554b8850192bdd86c02eb671de1d866df8d87.tar.gz) LICENSE( @@ -22,11 +22,11 @@ LICENSE( LICENSE_TEXTS(.yandex_meta/licenses.list.txt) DISABLE(USE_LTO) - + ADDINCL( contrib/libs/libunwind/include ) - + NO_RUNTIME() NO_UTIL() @@ -39,17 +39,17 @@ CFLAGS( GLOBAL -D_libunwind_ -D_LIBUNWIND_IS_NATIVE_ONLY -fno-exceptions - -fno-rtti - -funwind-tables -) - + -fno-rtti + -funwind-tables +) + IF (SANITIZER_TYPE == memory) CFLAGS( -fPIC ) ENDIF() - -SRCS( + +SRCS( src/Unwind-EHABI.cpp src/Unwind-seh.cpp src/Unwind-sjlj.c @@ -58,16 +58,16 @@ SRCS( src/UnwindRegistersRestore.S src/UnwindRegistersSave.S src/libunwind.cpp -) - +) + IF (OS_DARWIN OR OS_IOS) - SRCS( + SRCS( src/Unwind_AppleExtras.cpp - ) + ) ENDIF() - + END() - + RECURSE_FOR_TESTS( ut ) |