0
Files
src/gin/v8_initializer.h
Jakob Gruber dfa06417b4 Remove all infrastructure for the V8 natives blob
The V8 natives blob (natives_blob.bin) is unused and will shortly be
removed in V8. This CL removes all related infrastructure in chromium.

Specifically, this means that natives_blob.bin is no longer

1. generated during the build process,
2. installed on the target system,
3. loaded by chrome at runtime, and
4. passed to V8.

Tbr: oksamyt@chromium.org
Bug: v8:7624
Change-Id: I535d4308a8aa539c354a212174d47ade411bc89d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1847217
Reviewed-by: Oksana Zhuravlova <oksamyt@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: Greg Thompson <grt@chromium.org>
Commit-Queue: Jakob Gruber <jgruber@chromium.org>
Cr-Commit-Position: refs/heads/master@{#708094}
2019-10-22 04:40:39 +00:00

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2.1 KiB
C++

// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GIN_V8_INITIALIZER_H_
#define GIN_V8_INITIALIZER_H_
#include <stdint.h>
#include "base/files/file.h"
#include "base/files/memory_mapped_file.h"
#include "gin/array_buffer.h"
#include "gin/gin_export.h"
#include "gin/public/isolate_holder.h"
#include "gin/public/v8_platform.h"
#include "v8/include/v8.h"
namespace gin {
class GIN_EXPORT V8Initializer {
public:
// This should be called by IsolateHolder::Initialize().
static void Initialize(IsolateHolder::ScriptMode mode);
// Get address and size information for currently loaded snapshot.
// If no snapshot is loaded, the return values are null for addresses
// and 0 for sizes.
static void GetV8ExternalSnapshotData(v8::StartupData* snapshot);
static void GetV8ExternalSnapshotData(const char** snapshot_data_out,
int* snapshot_size_out);
#if defined(V8_USE_EXTERNAL_STARTUP_DATA)
// Indicates which file to load as a snapshot blob image.
enum class V8SnapshotFileType {
kDefault,
// Snapshot augmented with customized contexts, which can be deserialized
// using v8::Context::FromSnapshot.
kWithAdditionalContext,
};
// Load V8 snapshot from default resources, if they are available.
static void LoadV8Snapshot(
V8SnapshotFileType snapshot_file_type = V8SnapshotFileType::kDefault);
// Load V8 snapshot from user provided file.
// The region argument, if non-zero, specifies the portions
// of the files to be mapped. Since the VM can boot with or without
// the snapshot, this function does not return a status.
static void LoadV8SnapshotFromFile(
base::File snapshot_file,
base::MemoryMappedFile::Region* snapshot_file_region,
V8SnapshotFileType snapshot_file_type);
#if defined(OS_ANDROID)
static base::FilePath GetSnapshotFilePath(
bool abi_32_bit,
V8SnapshotFileType snapshot_file_type);
#endif
#endif // V8_USE_EXTERNAL_STARTUP_DATA
};
} // namespace gin
#endif // GIN_V8_INITIALIZER_H_