base/debug/stack_trace.cc

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/debug/stack_trace.h"

#include <string.h>

#include <algorithm>
#include <sstream>
#include <utility>

#include "base/check_op.h"
#include "base/debug/debugging_buildflags.h"
#include "build/build_config.h"
#include "build/config/compiler/compiler_buildflags.h"

#if BUILDFLAG(CAN_UNWIND_WITH_FRAME_POINTERS)
#include <optional>

#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_ANDROID)
#include <pthread.h>

#include "base/process/process_handle.h"
#include "base/threading/platform_thread.h"
#endif

#if BUILDFLAG(IS_APPLE)
#include <pthread.h>
#endif

#if (BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)) && defined(__GLIBC__)
extern "C" void* __libc_stack_end;
#endif

#endif  // BUILDFLAG(CAN_UNWIND_WITH_FRAME_POINTERS)

namespace base::debug {

namespace {

#if BUILDFLAG(CAN_UNWIND_WITH_FRAME_POINTERS)

#if defined(__arm__) && defined(__GNUC__) && !defined(__clang__)
// GCC and LLVM generate slightly different frames on ARM, see
// https://llvm.org/bugs/show_bug.cgi?id=18505 - LLVM generates
// x86-compatible frame, while GCC needs adjustment.
constexpr size_t kStackFrameAdjustment = sizeof(uintptr_t);
#else