chromium/base/profiler/stack_sampler_posix.cc

// Copyright 2015 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/profiler/stack_sampler.h"

#include <pthread.h>

#include <memory>

#include "base/memory/ptr_util.h"
#include "base/threading/platform_thread.h"
#include "build/build_config.h"

#if BUILDFLAG(IS_CHROMEOS) && \
    (defined(ARCH_CPU_X86_64) || defined(ARCH_CPU_ARM64))
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/profiler/frame_pointer_unwinder.h"
#include "base/profiler/stack_copier_signal.h"
#include "base/profiler/thread_delegate_posix.h"
#include "base/profiler/unwinder.h"
#endif

namespace base {

namespace {

#if BUILDFLAG(IS_CHROMEOS) && \
    (defined(ARCH_CPU_X86_64) || defined(ARCH_CPU_ARM64))
std::vector<std::unique_ptr<Unwinder>> CreateUnwinders() {
  std::vector<std::unique_ptr<Unwinder>> unwinders;
  unwinders.push_back(std::make_unique<FramePointerUnwinder>());
  return unwinders;
}
#endif

}  // namespace

std::unique_ptr<StackSampler> StackSampler::Create(
    SamplingProfilerThreadToken thread_token,
    std::unique_ptr<StackUnwindData> stack_unwind_data,
    UnwindersFactory core_unwinders_factory,
    RepeatingClosure record_sample_callback,
    StackSamplerTestDelegate* test_delegate) { … }

size_t StackSampler::GetStackBufferSize() { … }

}  // namespace base