v8_initializer.cc | Explore in Territory

// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "gin/v8_initializer.h"

#include <stddef.h>
#include <stdint.h>

#include <cstdint>
#include <memory>
#include <optional>
#include <string>
#include <string_view>
#include <utility>
#include <vector>

#include "base/bits.h"
#include "base/check.h"
#include "base/check_op.h"
#include "base/containers/span.h"
#include "base/debug/alias.h"
#include "base/debug/crash_logging.h"
#include "base/feature_list.h"
#include "base/files/file.h"
#include "base/files/file_path.h"
#include "base/files/memory_mapped_file.h"
#include "base/lazy_instance.h"
#include "base/metrics/histogram_functions.h"
#include "base/metrics/histogram_macros.h"
#include "base/notreached.h"
#include "base/path_service.h"
#include "base/rand_util.h"
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/system/sys_info.h"
#include "base/threading/platform_thread.h"
#include "base/time/time.h"
#include "build/build_config.h"
#include "gin/array_buffer.h"
#include "gin/gin_features.h"
#include "partition_alloc/page_allocator.h"
#include "partition_alloc/partition_address_space.h"
#include "tools/v8_context_snapshot/buildflags.h"
#include "v8/include/v8-initialization.h"
#include "v8/include/v8-snapshot.h"

#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
#if BUILDFLAG(IS_ANDROID)
#include "base/android/apk_assets.h"
#elif BUILDFLAG(IS_MAC)
#include "base/apple/foundation_util.h"
#endif
#endif  // V8_USE_EXTERNAL_STARTUP_DATA

namespace gin {

namespace …  // namespace

// static
void V8Initializer::Initialize(IsolateHolder::ScriptMode mode,
                               const std::string js_command_line_flags,
                               v8::OOMErrorCallback oom_error_callback) { … }

// static
void V8Initializer::GetV8ExternalSnapshotData(v8::StartupData* snapshot) { … }

// static
void V8Initializer::GetV8ExternalSnapshotData(const char** snapshot_data_out,
                                              int* snapshot_size_out) { … }

#if defined(V8_USE_EXTERNAL_STARTUP_DATA)

// static
void V8Initializer::LoadV8Snapshot(V8SnapshotFileType snapshot_file_type) { … }

// static
void V8Initializer::LoadV8SnapshotFromFile(
    base::File snapshot_file,
    base::MemoryMappedFile::Region* snapshot_file_region,
    V8SnapshotFileType snapshot_file_type) { … }

#if BUILDFLAG(IS_ANDROID)
// static
base::FilePath V8Initializer::GetSnapshotFilePath(
    bool abi_32_bit,
    V8SnapshotFileType snapshot_file_type) {
  base::FilePath path;
  const char* filename = nullptr;
  switch (snapshot_file_type) {
    case V8SnapshotFileType::kDefault:
      filename = abi_32_bit ? kSnapshotFileName32 : kSnapshotFileName64;
      break;
    case V8SnapshotFileType::kWithAdditionalContext:
      filename = abi_32_bit ? kV8ContextSnapshotFileName32
                            : kV8ContextSnapshotFileName64;
      break;
  }
  CHECK(filename);

  GetV8FilePath(filename, &path);
  return path;
}
#endif  // BUILDFLAG(IS_ANDROID)

V8SnapshotFileType GetLoadedSnapshotFileType() { … }

#endif  // defined(V8_USE_EXTERNAL_STARTUP_DATA)

}  // namespace gin
chromium/gin/v8_initializer.cc
