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author | robot-piglet <robot-piglet@yandex-team.com> | 2025-03-05 13:38:11 +0300 |
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committer | robot-piglet <robot-piglet@yandex-team.com> | 2025-03-05 13:49:53 +0300 |
commit | 9eed360f02de773a5ed2de5d2a3e81fc7f06acfa (patch) | |
tree | 744a4054e64eb443073c7c6ad36b29cedcf9c2e6 /contrib/libs/llvm14/lib/Support/ErrorHandling.cpp | |
parent | c141a5c40bda2eed1a68b0626ffdae5fd19359a6 (diff) | |
download | ydb-9eed360f02de773a5ed2de5d2a3e81fc7f06acfa.tar.gz |
Intermediate changes
commit_hash:2ec2671384dd8e604d41bc5c52c2f7858e4afea6
Diffstat (limited to 'contrib/libs/llvm14/lib/Support/ErrorHandling.cpp')
-rw-r--r-- | contrib/libs/llvm14/lib/Support/ErrorHandling.cpp | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/contrib/libs/llvm14/lib/Support/ErrorHandling.cpp b/contrib/libs/llvm14/lib/Support/ErrorHandling.cpp deleted file mode 100644 index 80c0e00439a..00000000000 --- a/contrib/libs/llvm14/lib/Support/ErrorHandling.cpp +++ /dev/null @@ -1,303 +0,0 @@ -//===- lib/Support/ErrorHandling.cpp - Callbacks for errors ---------------===// -// -// 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 an API used to indicate fatal error conditions. Non-fatal -// errors (most of them) should be handled through LLVMContext. -// -//===----------------------------------------------------------------------===// - -#include "llvm/Support/ErrorHandling.h" -#include "llvm-c/ErrorHandling.h" -#include "llvm/ADT/SmallVector.h" -#include "llvm/ADT/Twine.h" -#include "llvm/Config/config.h" -#include "llvm/Support/Debug.h" -#include "llvm/Support/Errc.h" -#include "llvm/Support/Error.h" -#include "llvm/Support/Process.h" -#include "llvm/Support/Signals.h" -#include "llvm/Support/Threading.h" -#include "llvm/Support/WindowsError.h" -#include "llvm/Support/raw_ostream.h" -#include <cassert> -#include <cstdlib> -#include <mutex> -#include <new> - -#if defined(HAVE_UNISTD_H) -# include <unistd.h> -#endif -#if defined(_MSC_VER) -# include <io.h> -# include <fcntl.h> -#endif - -using namespace llvm; - -static fatal_error_handler_t ErrorHandler = nullptr; -static void *ErrorHandlerUserData = nullptr; - -static fatal_error_handler_t BadAllocErrorHandler = nullptr; -static void *BadAllocErrorHandlerUserData = nullptr; - -#if LLVM_ENABLE_THREADS == 1 -// Mutexes to synchronize installing error handlers and calling error handlers. -// Do not use ManagedStatic, or that may allocate memory while attempting to -// report an OOM. -// -// This usage of std::mutex has to be conditionalized behind ifdefs because -// of this script: -// compiler-rt/lib/sanitizer_common/symbolizer/scripts/build_symbolizer.sh -// That script attempts to statically link the LLVM symbolizer library with the -// STL and hide all of its symbols with 'opt -internalize'. To reduce size, it -// cuts out the threading portions of the hermetic copy of libc++ that it -// builds. We can remove these ifdefs if that script goes away. -static std::mutex ErrorHandlerMutex; -static std::mutex BadAllocErrorHandlerMutex; -#endif - -void llvm::install_fatal_error_handler(fatal_error_handler_t handler, - void *user_data) { -#if LLVM_ENABLE_THREADS == 1 - std::lock_guard<std::mutex> Lock(ErrorHandlerMutex); -#endif - assert(!ErrorHandler && "Error handler already registered!\n"); - ErrorHandler = handler; - ErrorHandlerUserData = user_data; -} - -void llvm::remove_fatal_error_handler() { -#if LLVM_ENABLE_THREADS == 1 - std::lock_guard<std::mutex> Lock(ErrorHandlerMutex); -#endif - ErrorHandler = nullptr; - ErrorHandlerUserData = nullptr; -} - -void llvm::report_fatal_error(const char *Reason, bool GenCrashDiag) { - report_fatal_error(Twine(Reason), GenCrashDiag); -} - -void llvm::report_fatal_error(StringRef Reason, bool GenCrashDiag) { - report_fatal_error(Twine(Reason), GenCrashDiag); -} - -void llvm::report_fatal_error(const Twine &Reason, bool GenCrashDiag) { - llvm::fatal_error_handler_t handler = nullptr; - void* handlerData = nullptr; - { - // Only acquire the mutex while reading the handler, so as not to invoke a - // user-supplied callback under a lock. -#if LLVM_ENABLE_THREADS == 1 - std::lock_guard<std::mutex> Lock(ErrorHandlerMutex); -#endif - handler = ErrorHandler; - handlerData = ErrorHandlerUserData; - } - - if (handler) { - handler(handlerData, Reason.str().c_str(), GenCrashDiag); - } else { - // Blast the result out to stderr. We don't try hard to make sure this - // succeeds (e.g. handling EINTR) and we can't use errs() here because - // raw ostreams can call report_fatal_error. - SmallVector<char, 64> Buffer; - raw_svector_ostream OS(Buffer); - OS << "LLVM ERROR: " << Reason << "\n"; - StringRef MessageStr = OS.str(); - ssize_t written = ::write(2, MessageStr.data(), MessageStr.size()); - (void)written; // If something went wrong, we deliberately just give up. - } - - // If we reached here, we are failing ungracefully. Run the interrupt handlers - // to make sure any special cleanups get done, in particular that we remove - // files registered with RemoveFileOnSignal. - sys::RunInterruptHandlers(); - - abort(); -} - -void llvm::install_bad_alloc_error_handler(fatal_error_handler_t handler, - void *user_data) { -#if LLVM_ENABLE_THREADS == 1 - std::lock_guard<std::mutex> Lock(BadAllocErrorHandlerMutex); -#endif - assert(!ErrorHandler && "Bad alloc error handler already registered!\n"); - BadAllocErrorHandler = handler; - BadAllocErrorHandlerUserData = user_data; -} - -void llvm::remove_bad_alloc_error_handler() { -#if LLVM_ENABLE_THREADS == 1 - std::lock_guard<std::mutex> Lock(BadAllocErrorHandlerMutex); -#endif - BadAllocErrorHandler = nullptr; - BadAllocErrorHandlerUserData = nullptr; -} - -void llvm::report_bad_alloc_error(const char *Reason, bool GenCrashDiag) { - fatal_error_handler_t Handler = nullptr; - void *HandlerData = nullptr; - { - // Only acquire the mutex while reading the handler, so as not to invoke a - // user-supplied callback under a lock. -#if LLVM_ENABLE_THREADS == 1 - std::lock_guard<std::mutex> Lock(BadAllocErrorHandlerMutex); -#endif - Handler = BadAllocErrorHandler; - HandlerData = BadAllocErrorHandlerUserData; - } - - if (Handler) { - Handler(HandlerData, Reason, GenCrashDiag); - llvm_unreachable("bad alloc handler should not return"); - } - -#ifdef LLVM_ENABLE_EXCEPTIONS - // If exceptions are enabled, make OOM in malloc look like OOM in new. - throw std::bad_alloc(); -#else - // Don't call the normal error handler. It may allocate memory. Directly write - // an OOM to stderr and abort. - const char *OOMMessage = "LLVM ERROR: out of memory\n"; - const char *Newline = "\n"; - (void)!::write(2, OOMMessage, strlen(OOMMessage)); - (void)!::write(2, Reason, strlen(Reason)); - (void)!::write(2, Newline, strlen(Newline)); - abort(); -#endif -} - -#ifdef LLVM_ENABLE_EXCEPTIONS -// Do not set custom new handler if exceptions are enabled. In this case OOM -// errors are handled by throwing 'std::bad_alloc'. -void llvm::install_out_of_memory_new_handler() { -} -#else -// Causes crash on allocation failure. It is called prior to the handler set by -// 'install_bad_alloc_error_handler'. -static void out_of_memory_new_handler() { - llvm::report_bad_alloc_error("Allocation failed"); -} - -// Installs new handler that causes crash on allocation failure. It is called by -// InitLLVM. -void llvm::install_out_of_memory_new_handler() { - std::new_handler old = std::set_new_handler(out_of_memory_new_handler); - (void)old; - assert((old == nullptr || old == out_of_memory_new_handler) && - "new-handler already installed"); -} -#endif - -void llvm::llvm_unreachable_internal(const char *msg, const char *file, - unsigned line) { - // This code intentionally doesn't call the ErrorHandler callback, because - // llvm_unreachable is intended to be used to indicate "impossible" - // situations, and not legitimate runtime errors. - if (msg) - dbgs() << msg << "\n"; - dbgs() << "UNREACHABLE executed"; - if (file) - dbgs() << " at " << file << ":" << line; - dbgs() << "!\n"; - abort(); -#ifdef LLVM_BUILTIN_UNREACHABLE - // Windows systems and possibly others don't declare abort() to be noreturn, - // so use the unreachable builtin to avoid a Clang self-host warning. - LLVM_BUILTIN_UNREACHABLE; -#endif -} - -static void bindingsErrorHandler(void *user_data, const char *reason, - bool gen_crash_diag) { - LLVMFatalErrorHandler handler = - LLVM_EXTENSION reinterpret_cast<LLVMFatalErrorHandler>(user_data); - handler(reason); -} - -void LLVMInstallFatalErrorHandler(LLVMFatalErrorHandler Handler) { - install_fatal_error_handler(bindingsErrorHandler, - LLVM_EXTENSION reinterpret_cast<void *>(Handler)); -} - -void LLVMResetFatalErrorHandler() { - remove_fatal_error_handler(); -} - -#ifdef _WIN32 - -#include <winerror.h> - -// I'd rather not double the line count of the following. -#define MAP_ERR_TO_COND(x, y) \ - case x: \ - return make_error_code(errc::y) - -std::error_code llvm::mapWindowsError(unsigned EV) { - switch (EV) { - MAP_ERR_TO_COND(ERROR_ACCESS_DENIED, permission_denied); - MAP_ERR_TO_COND(ERROR_ALREADY_EXISTS, file_exists); - MAP_ERR_TO_COND(ERROR_BAD_NETPATH, no_such_file_or_directory); - MAP_ERR_TO_COND(ERROR_BAD_PATHNAME, no_such_file_or_directory); - MAP_ERR_TO_COND(ERROR_BAD_UNIT, no_such_device); - MAP_ERR_TO_COND(ERROR_BROKEN_PIPE, broken_pipe); - MAP_ERR_TO_COND(ERROR_BUFFER_OVERFLOW, filename_too_long); - MAP_ERR_TO_COND(ERROR_BUSY, device_or_resource_busy); - MAP_ERR_TO_COND(ERROR_BUSY_DRIVE, device_or_resource_busy); - MAP_ERR_TO_COND(ERROR_CANNOT_MAKE, permission_denied); - MAP_ERR_TO_COND(ERROR_CANTOPEN, io_error); - MAP_ERR_TO_COND(ERROR_CANTREAD, io_error); - MAP_ERR_TO_COND(ERROR_CANTWRITE, io_error); - MAP_ERR_TO_COND(ERROR_CURRENT_DIRECTORY, permission_denied); - MAP_ERR_TO_COND(ERROR_DEV_NOT_EXIST, no_such_device); - MAP_ERR_TO_COND(ERROR_DEVICE_IN_USE, device_or_resource_busy); - MAP_ERR_TO_COND(ERROR_DIR_NOT_EMPTY, directory_not_empty); - MAP_ERR_TO_COND(ERROR_DIRECTORY, invalid_argument); - MAP_ERR_TO_COND(ERROR_DISK_FULL, no_space_on_device); - MAP_ERR_TO_COND(ERROR_FILE_EXISTS, file_exists); - MAP_ERR_TO_COND(ERROR_FILE_NOT_FOUND, no_such_file_or_directory); - MAP_ERR_TO_COND(ERROR_HANDLE_DISK_FULL, no_space_on_device); - MAP_ERR_TO_COND(ERROR_INVALID_ACCESS, permission_denied); - MAP_ERR_TO_COND(ERROR_INVALID_DRIVE, no_such_device); - MAP_ERR_TO_COND(ERROR_INVALID_FUNCTION, function_not_supported); - MAP_ERR_TO_COND(ERROR_INVALID_HANDLE, invalid_argument); - MAP_ERR_TO_COND(ERROR_INVALID_NAME, invalid_argument); - MAP_ERR_TO_COND(ERROR_INVALID_PARAMETER, invalid_argument); - MAP_ERR_TO_COND(ERROR_LOCK_VIOLATION, no_lock_available); - MAP_ERR_TO_COND(ERROR_LOCKED, no_lock_available); - MAP_ERR_TO_COND(ERROR_NEGATIVE_SEEK, invalid_argument); - MAP_ERR_TO_COND(ERROR_NOACCESS, permission_denied); - MAP_ERR_TO_COND(ERROR_NOT_ENOUGH_MEMORY, not_enough_memory); - MAP_ERR_TO_COND(ERROR_NOT_READY, resource_unavailable_try_again); - MAP_ERR_TO_COND(ERROR_NOT_SUPPORTED, not_supported); - MAP_ERR_TO_COND(ERROR_OPEN_FAILED, io_error); - MAP_ERR_TO_COND(ERROR_OPEN_FILES, device_or_resource_busy); - MAP_ERR_TO_COND(ERROR_OUTOFMEMORY, not_enough_memory); - MAP_ERR_TO_COND(ERROR_PATH_NOT_FOUND, no_such_file_or_directory); - MAP_ERR_TO_COND(ERROR_READ_FAULT, io_error); - MAP_ERR_TO_COND(ERROR_REPARSE_TAG_INVALID, invalid_argument); - MAP_ERR_TO_COND(ERROR_RETRY, resource_unavailable_try_again); - MAP_ERR_TO_COND(ERROR_SEEK, io_error); - MAP_ERR_TO_COND(ERROR_SHARING_VIOLATION, permission_denied); - MAP_ERR_TO_COND(ERROR_TOO_MANY_OPEN_FILES, too_many_files_open); - MAP_ERR_TO_COND(ERROR_WRITE_FAULT, io_error); - MAP_ERR_TO_COND(ERROR_WRITE_PROTECT, permission_denied); - MAP_ERR_TO_COND(WSAEACCES, permission_denied); - MAP_ERR_TO_COND(WSAEBADF, bad_file_descriptor); - MAP_ERR_TO_COND(WSAEFAULT, bad_address); - MAP_ERR_TO_COND(WSAEINTR, interrupted); - MAP_ERR_TO_COND(WSAEINVAL, invalid_argument); - MAP_ERR_TO_COND(WSAEMFILE, too_many_files_open); - MAP_ERR_TO_COND(WSAENAMETOOLONG, filename_too_long); - default: - return std::error_code(EV, std::system_category()); - } -} - -#endif |