diff options
Diffstat (limited to 'contrib/restricted/abseil-cpp-tstring/y_absl/debugging/symbolize_win32.inc')
-rw-r--r-- | contrib/restricted/abseil-cpp-tstring/y_absl/debugging/symbolize_win32.inc | 152 |
1 files changed, 76 insertions, 76 deletions
diff --git a/contrib/restricted/abseil-cpp-tstring/y_absl/debugging/symbolize_win32.inc b/contrib/restricted/abseil-cpp-tstring/y_absl/debugging/symbolize_win32.inc index 447bab62ae..81e0473f88 100644 --- a/contrib/restricted/abseil-cpp-tstring/y_absl/debugging/symbolize_win32.inc +++ b/contrib/restricted/abseil-cpp-tstring/y_absl/debugging/symbolize_win32.inc @@ -1,81 +1,81 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// See "Retrieving Symbol Information by Address": -// https://msdn.microsoft.com/en-us/library/windows/desktop/ms680578(v=vs.85).aspx - -#include <windows.h> - -// MSVC header dbghelp.h has a warning for an ignored typedef. -#pragma warning(push) -#pragma warning(disable:4091) -#include <dbghelp.h> -#pragma warning(pop) - -#pragma comment(lib, "dbghelp.lib") - -#include <algorithm> -#include <cstring> - +// Copyright 2018 The Abseil Authors. +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// https://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. + +// See "Retrieving Symbol Information by Address": +// https://msdn.microsoft.com/en-us/library/windows/desktop/ms680578(v=vs.85).aspx + +#include <windows.h> + +// MSVC header dbghelp.h has a warning for an ignored typedef. +#pragma warning(push) +#pragma warning(disable:4091) +#include <dbghelp.h> +#pragma warning(pop) + +#pragma comment(lib, "dbghelp.lib") + +#include <algorithm> +#include <cstring> + #include "y_absl/base/internal/raw_logging.h" - + namespace y_absl { ABSL_NAMESPACE_BEGIN - -static HANDLE process = NULL; - -void InitializeSymbolizer(const char*) { - if (process != nullptr) { - return; - } - process = GetCurrentProcess(); - - // Symbols are not loaded until a reference is made requiring the - // symbols be loaded. This is the fastest, most efficient way to use - // the symbol handler. - SymSetOptions(SYMOPT_DEFERRED_LOADS | SYMOPT_UNDNAME); - if (!SymInitialize(process, nullptr, true)) { - // GetLastError() returns a Win32 DWORD, but we assign to - // unsigned long long to simplify the ABSL_RAW_LOG case below. The uniform - // initialization guarantees this is not a narrowing conversion. - const unsigned long long error{GetLastError()}; // NOLINT(runtime/int) - ABSL_RAW_LOG(FATAL, "SymInitialize() failed: %llu", error); - } -} - -bool Symbolize(const void* pc, char* out, int out_size) { - if (out_size <= 0) { - return false; - } - alignas(SYMBOL_INFO) char buf[sizeof(SYMBOL_INFO) + MAX_SYM_NAME]; - SYMBOL_INFO* symbol = reinterpret_cast<SYMBOL_INFO*>(buf); - symbol->SizeOfStruct = sizeof(SYMBOL_INFO); - symbol->MaxNameLen = MAX_SYM_NAME; - if (!SymFromAddr(process, reinterpret_cast<DWORD64>(pc), nullptr, symbol)) { - return false; - } - strncpy(out, symbol->Name, out_size); - if (out[out_size - 1] != '\0') { - // strncpy() does not '\0' terminate when it truncates. - static constexpr char kEllipsis[] = "..."; - int ellipsis_size = - std::min<int>(sizeof(kEllipsis) - 1, out_size - 1); - memcpy(out + out_size - ellipsis_size - 1, kEllipsis, ellipsis_size); - out[out_size - 1] = '\0'; - } - return true; -} - + +static HANDLE process = NULL; + +void InitializeSymbolizer(const char*) { + if (process != nullptr) { + return; + } + process = GetCurrentProcess(); + + // Symbols are not loaded until a reference is made requiring the + // symbols be loaded. This is the fastest, most efficient way to use + // the symbol handler. + SymSetOptions(SYMOPT_DEFERRED_LOADS | SYMOPT_UNDNAME); + if (!SymInitialize(process, nullptr, true)) { + // GetLastError() returns a Win32 DWORD, but we assign to + // unsigned long long to simplify the ABSL_RAW_LOG case below. The uniform + // initialization guarantees this is not a narrowing conversion. + const unsigned long long error{GetLastError()}; // NOLINT(runtime/int) + ABSL_RAW_LOG(FATAL, "SymInitialize() failed: %llu", error); + } +} + +bool Symbolize(const void* pc, char* out, int out_size) { + if (out_size <= 0) { + return false; + } + alignas(SYMBOL_INFO) char buf[sizeof(SYMBOL_INFO) + MAX_SYM_NAME]; + SYMBOL_INFO* symbol = reinterpret_cast<SYMBOL_INFO*>(buf); + symbol->SizeOfStruct = sizeof(SYMBOL_INFO); + symbol->MaxNameLen = MAX_SYM_NAME; + if (!SymFromAddr(process, reinterpret_cast<DWORD64>(pc), nullptr, symbol)) { + return false; + } + strncpy(out, symbol->Name, out_size); + if (out[out_size - 1] != '\0') { + // strncpy() does not '\0' terminate when it truncates. + static constexpr char kEllipsis[] = "..."; + int ellipsis_size = + std::min<int>(sizeof(kEllipsis) - 1, out_size - 1); + memcpy(out + out_size - ellipsis_size - 1, kEllipsis, ellipsis_size); + out[out_size - 1] = '\0'; + } + return true; +} + ABSL_NAMESPACE_END } // namespace y_absl |