chromium/base/profiler/stack_copier_suspend.cc

// Copyright 2019 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_copier_suspend.h"

#include "base/profiler/stack_buffer.h"
#include "base/profiler/suspendable_thread_delegate.h"

namespace base {

StackCopierSuspend::StackCopierSuspend(
    std::unique_ptr<SuspendableThreadDelegate> thread_delegate)
    : … { … }

StackCopierSuspend::~StackCopierSuspend() = default;

// Suspends the thread, copies the stack state, and resumes the thread. The
// copied stack state includes the stack itself, the top address of the stack
// copy, and the register context. Returns true on success, and returns the
// copied state via the params.
//
// NO HEAP ALLOCATIONS within the ScopedSuspendThread scope.
bool StackCopierSuspend::CopyStack(StackBuffer* stack_buffer,
                                   uintptr_t* stack_top,
                                   TimeTicks* timestamp,
                                   RegisterContext* thread_context,
                                   Delegate* delegate) { … }

std::vector<uintptr_t*> StackCopierSuspend::GetRegistersToRewrite(
    RegisterContext* thread_context) { … }

}  // namespace base