chromium/base/profiler/stack_copier.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.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40284755): Remove this and spanify to fix the errors.
#pragma allow_unsafe_buffers
#endif

#include "base/profiler/stack_copier.h"

#include <vector>

#include "base/bits.h"
#include "base/compiler_specific.h"
#include "base/profiler/stack_buffer.h"

#if PA_BUILDFLAG(USE_PARTITION_ALLOC)
#include "partition_alloc/tagging.h"
#endif

namespace base {

StackCopier::~StackCopier() = default;

std::unique_ptr<StackBuffer> StackCopier::CloneStack(
    const StackBuffer& stack_buffer,
    uintptr_t* stack_top,
    RegisterContext* thread_context) { … }

// static
uintptr_t StackCopier::RewritePointerIfInOriginalStack(
    const uint8_t* original_stack_bottom,
    const uintptr_t* original_stack_top,
    const uint8_t* stack_copy_bottom,
    uintptr_t pointer) { … }

// static
NO_SANITIZE("address")
const uint8_t* StackCopier::CopyStackContentsAndRewritePointers(
    const uint8_t* original_stack_bottom,
    const uintptr_t* original_stack_top,
    size_t platform_stack_alignment,
    uintptr_t* stack_buffer_bottom) { … }

}  // namespace base