b93e4d2c8b
BUG=v8:2487 R=yangguo@chromium.org LOG=n Review URL: https://codereview.chromium.org/1480883002 Cr-Commit-Position: refs/heads/master@{#32344}
135 lines
3.1 KiB
C++
135 lines
3.1 KiB
C++
// Copyright 2012 the V8 project authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style license that can be
|
|
// found in the LICENSE file.
|
|
|
|
#include "src/v8.h"
|
|
|
|
#include "src/assembler.h"
|
|
#include "src/base/once.h"
|
|
#include "src/base/platform/platform.h"
|
|
#include "src/bootstrapper.h"
|
|
#include "src/crankshaft/lithium-allocator.h"
|
|
#include "src/debug/debug.h"
|
|
#include "src/deoptimizer.h"
|
|
#include "src/elements.h"
|
|
#include "src/frames.h"
|
|
#include "src/isolate.h"
|
|
#include "src/objects.h"
|
|
#include "src/profiler/heap-profiler.h"
|
|
#include "src/profiler/sampler.h"
|
|
#include "src/runtime-profiler.h"
|
|
#include "src/snapshot/natives.h"
|
|
#include "src/snapshot/serialize.h"
|
|
#include "src/snapshot/snapshot.h"
|
|
|
|
|
|
namespace v8 {
|
|
namespace internal {
|
|
|
|
V8_DECLARE_ONCE(init_once);
|
|
|
|
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
|
|
V8_DECLARE_ONCE(init_natives_once);
|
|
V8_DECLARE_ONCE(init_snapshot_once);
|
|
#endif
|
|
|
|
v8::Platform* V8::platform_ = NULL;
|
|
|
|
|
|
bool V8::Initialize() {
|
|
InitializeOncePerProcess();
|
|
return true;
|
|
}
|
|
|
|
|
|
void V8::TearDown() {
|
|
Bootstrapper::TearDownExtensions();
|
|
ElementsAccessor::TearDown();
|
|
LOperand::TearDownCaches();
|
|
ExternalReference::TearDownMathExpData();
|
|
RegisteredExtension::UnregisterAll();
|
|
Isolate::GlobalTearDown();
|
|
Sampler::TearDown();
|
|
FlagList::ResetAllFlags(); // Frees memory held by string arguments.
|
|
}
|
|
|
|
|
|
void V8::InitializeOncePerProcessImpl() {
|
|
FlagList::EnforceFlagImplications();
|
|
|
|
if (FLAG_predictable && FLAG_random_seed == 0) {
|
|
// Avoid random seeds in predictable mode.
|
|
FLAG_random_seed = 12347;
|
|
}
|
|
|
|
if (FLAG_stress_compaction) {
|
|
FLAG_force_marking_deque_overflows = true;
|
|
FLAG_gc_global = true;
|
|
FLAG_max_semi_space_size = 1;
|
|
}
|
|
|
|
if (FLAG_turbo && strcmp(FLAG_turbo_filter, "~~") == 0) {
|
|
const char* filter_flag = "--turbo-filter=*";
|
|
FlagList::SetFlagsFromString(filter_flag, StrLength(filter_flag));
|
|
}
|
|
|
|
base::OS::Initialize(FLAG_random_seed, FLAG_hard_abort, FLAG_gc_fake_mmap);
|
|
|
|
Isolate::InitializeOncePerProcess();
|
|
|
|
Sampler::SetUp();
|
|
CpuFeatures::Probe(false);
|
|
ElementsAccessor::InitializeOncePerProcess();
|
|
LOperand::SetUpCaches();
|
|
SetUpJSCallerSavedCodeData();
|
|
ExternalReference::SetUp();
|
|
Bootstrapper::InitializeOncePerProcess();
|
|
}
|
|
|
|
|
|
void V8::InitializeOncePerProcess() {
|
|
base::CallOnce(&init_once, &InitializeOncePerProcessImpl);
|
|
}
|
|
|
|
|
|
void V8::InitializePlatform(v8::Platform* platform) {
|
|
CHECK(!platform_);
|
|
CHECK(platform);
|
|
platform_ = platform;
|
|
}
|
|
|
|
|
|
void V8::ShutdownPlatform() {
|
|
CHECK(platform_);
|
|
platform_ = NULL;
|
|
}
|
|
|
|
|
|
v8::Platform* V8::GetCurrentPlatform() {
|
|
DCHECK(platform_);
|
|
return platform_;
|
|
}
|
|
|
|
|
|
void V8::SetPlatformForTesting(v8::Platform* platform) { platform_ = platform; }
|
|
|
|
|
|
void V8::SetNativesBlob(StartupData* natives_blob) {
|
|
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
|
|
base::CallOnce(&init_natives_once, &SetNativesFromFile, natives_blob);
|
|
#else
|
|
CHECK(false);
|
|
#endif
|
|
}
|
|
|
|
|
|
void V8::SetSnapshotBlob(StartupData* snapshot_blob) {
|
|
#ifdef V8_USE_EXTERNAL_STARTUP_DATA
|
|
base::CallOnce(&init_snapshot_once, &SetSnapshotFromFile, snapshot_blob);
|
|
#else
|
|
CHECK(false);
|
|
#endif
|
|
}
|
|
} // namespace internal
|
|
} // namespace v8
|