intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 241 insertions, 0 deletions

diff --git a/contrib/libs/libunwind/src/assembly.h b/contrib/libs/libunwind/src/assembly.h
new file mode 100644
index 00000000000..978f6bd619b
--- /dev/null
+++ b/contrib/libs/libunwind/src/assembly.h
@@ -0,0 +1,241 @@
+/* ===-- 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
+
+#if (defined(__i386__) || defined(__x86_64__)) && defined(__linux__)
+#include <cet.h>
+#define _LIBUNWIND_CET_ENDBR _CET_ENDBR
+#else
+#define _LIBUNWIND_CET_ENDBR
+#endif
+
+#if defined(__powerpc64__)
+#define SEPARATOR ;
+#define PPC64_OFFS_SRR0   0
+#define PPC64_OFFS_CR     272
+#define PPC64_OFFS_XER    280
+#define PPC64_OFFS_LR     288
+#define PPC64_OFFS_CTR    296
+#define PPC64_OFFS_VRSAVE 304
+#define PPC64_OFFS_FP     312
+#define PPC64_OFFS_V      824
+#elif defined(__APPLE__) && defined(__aarch64__)
+#define SEPARATOR %%
+#elif defined(__riscv)
+# define RISCV_ISIZE (__riscv_xlen / 8)
+# define RISCV_FOFFSET (RISCV_ISIZE * 32)
+# if defined(__riscv_flen)
+#  define RISCV_FSIZE (__riscv_flen / 8)
+# endif
+
+# if __riscv_xlen == 64
+#  define ILOAD ld
+#  define ISTORE sd
+# elif __riscv_xlen == 32
+#  define ILOAD lw
+#  define ISTORE sw
+# else
+#  error "Unsupported __riscv_xlen"
+# endif
+
+# if defined(__riscv_flen)
+#  if __riscv_flen == 64
+#   define FLOAD fld
+#   define FSTORE fsd
+#  elif __riscv_flen == 32
+#   define FLOAD flw
+#   define FSTORE fsw
+#  else
+#   error "Unsupported __riscv_flen"
+#  endif
+# endif
+# define SEPARATOR ;
+#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 \
+  .p2align 3 SEPARATOR \
+  .quad .Lfunc_begin0 SEPARATOR \
+  .quad .TOC.@tocbase SEPARATOR \
+  .quad 0 SEPARATOR \
+  .text SEPARATOR \
+.Lfunc_begin0:
+#else
+#define PPC64_OPD1
+#define PPC64_OPD2
+#endif
+
+#if defined(__aarch64__) && defined(__ARM_FEATURE_BTI_DEFAULT)
+  .pushsection ".note.gnu.property", "a" SEPARATOR                             \
+  .balign 8 SEPARATOR                                                          \
+  .long 4 SEPARATOR                                                            \
+  .long 0x10 SEPARATOR                                                         \
+  .long 0x5 SEPARATOR                                                          \
+  .asciz "GNU" SEPARATOR                                                       \
+  .long 0xc0000000 SEPARATOR /* GNU_PROPERTY_AARCH64_FEATURE_1_AND */          \
+  .long 4 SEPARATOR                                                            \
+  .long 3 SEPARATOR /* GNU_PROPERTY_AARCH64_FEATURE_1_BTI AND */               \
+                    /* GNU_PROPERTY_AARCH64_FEATURE_1_PAC */                   \
+  .long 0 SEPARATOR                                                            \
+  .popsection SEPARATOR
+#define AARCH64_BTI  bti c
+#else
+#define AARCH64_BTI
+#endif
+
+#if !defined(__aarch64__)
+#ifdef __ARM_FEATURE_PAC_DEFAULT
+  .eabi_attribute Tag_PAC_extension, 2
+  .eabi_attribute Tag_PACRET_use, 1
+#endif
+#ifdef __ARM_FEATURE_BTI_DEFAULT
+  .eabi_attribute Tag_BTI_extension, 1
+  .eabi_attribute Tag_BTI_use, 1
+#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 SYMBOL_IS_FUNC(name)
+#define HIDDEN_SYMBOL(name) .private_extern name
+#if defined(_LIBUNWIND_HIDE_SYMBOLS)
+#define EXPORT_SYMBOL(name) HIDDEN_SYMBOL(name)
+#else
+#define EXPORT_SYMBOL(name)
+#endif
+#define WEAK_ALIAS(name, aliasname)                                            \
+  .globl SYMBOL_NAME(aliasname) SEPARATOR                                      \
+  EXPORT_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR                              \
+  SYMBOL_NAME(aliasname) = SYMBOL_NAME(name)
+
+#define NO_EXEC_STACK_DIRECTIVE
+
+#elif defined(__ELF__)
+
+#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)
+#else
+#define EXPORT_SYMBOL(name)
+#endif
+#define WEAK_SYMBOL(name) .weak name
+
+#if defined(__hexagon__)
+#define WEAK_ALIAS(name, aliasname)                                            \
+  EXPORT_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR                              \
+  WEAK_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR                                \
+  .equiv SYMBOL_NAME(aliasname), SYMBOL_NAME(name)
+#else
+#define WEAK_ALIAS(name, aliasname)                                            \
+  EXPORT_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR                              \
+  WEAK_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR                                \
+  SYMBOL_NAME(aliasname) = SYMBOL_NAME(name)
+#endif
+
+#if defined(__GNU__) || defined(__FreeBSD__) || defined(__Fuchsia__) || \
+    defined(__linux__)
+#define NO_EXEC_STACK_DIRECTIVE .section .note.GNU-stack,"",%progbits
+#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 EXPORT_SYMBOL2(name)                                                   \
+  .section .drectve,"yn" SEPARATOR                                             \
+  .ascii "-export:", #name, "\0" SEPARATOR                                     \
+  .text
+#if defined(_LIBUNWIND_HIDE_SYMBOLS)
+#define EXPORT_SYMBOL(name)
+#else
+#define EXPORT_SYMBOL(name) EXPORT_SYMBOL2(name)
+#endif
+#define HIDDEN_SYMBOL(name)
+
+#if defined(__MINGW32__)
+#define WEAK_ALIAS(name, aliasname)                                            \
+  .globl SYMBOL_NAME(aliasname) SEPARATOR                                      \
+  EXPORT_SYMBOL(aliasname) SEPARATOR                                           \
+  SYMBOL_NAME(aliasname) = SYMBOL_NAME(name)
+#else
+#define WEAK_ALIAS3(name, aliasname)                                           \
+  .section .drectve,"yn" SEPARATOR                                             \
+  .ascii "-alternatename:", #aliasname, "=", #name, "\0" SEPARATOR             \
+  .text
+#define WEAK_ALIAS2(name, aliasname)                                           \
+  WEAK_ALIAS3(name, aliasname)
+#define WEAK_ALIAS(name, aliasname)                                            \
+  EXPORT_SYMBOL(SYMBOL_NAME(aliasname)) SEPARATOR                              \
+  WEAK_ALIAS2(SYMBOL_NAME(name), SYMBOL_NAME(aliasname))
+#endif
+
+#define NO_EXEC_STACK_DIRECTIVE
+
+#elif defined(__sparc__)
+
+#else
+
+#error Unsupported target
+
+#endif
+
+#define DEFINE_LIBUNWIND_FUNCTION(name)                                        \
+  .globl SYMBOL_NAME(name) SEPARATOR                                           \
+  HIDDEN_SYMBOL(SYMBOL_NAME(name)) SEPARATOR                                   \
+  SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR                                  \
+  PPC64_OPD1                                                                   \
+  SYMBOL_NAME(name):                                                           \
+  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(__powerpc__)
+#define PPC_LEFT_SHIFT(index) << (index)
+#endif
+
+#endif /* UNWIND_ASSEMBLY_H */