44166c6091
- V8::Deprecate ShutdownPlatform in favor of V8::DisposePlatform - Rename i::V8::TearDown to i::V8::Dispose - Clean up i::V8::Initialize - Remove needless V8::Initialize() calls in cctests - Remove CcTest::DisableAutomaticDispose() - Add checks to Isolate::Allocate and Isolate::Dispose that there is and active platform Change-Id: Iac84f9ade9d1781e9e8b8c88ea8fe74013f51c4a Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3306482 Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Manos Koukoutos <manoskouk@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Cr-Commit-Position: refs/heads/main@{#78162}
117 lines
3.4 KiB
C++
117 lines
3.4 KiB
C++
// Copyright 2016 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 "test/fuzzer/fuzzer-support.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "include/libplatform/libplatform.h"
|
|
#include "include/v8-context.h"
|
|
#include "include/v8-initialization.h"
|
|
#include "src/flags/flags.h"
|
|
#include "src/trap-handler/trap-handler.h"
|
|
|
|
namespace v8_fuzzer {
|
|
|
|
FuzzerSupport::FuzzerSupport(int* argc, char*** argv) {
|
|
v8::internal::FLAG_expose_gc = true;
|
|
v8::V8::SetFlagsFromCommandLine(argc, *argv, true);
|
|
v8::V8::InitializeICUDefaultLocation((*argv)[0]);
|
|
v8::V8::InitializeExternalStartupData((*argv)[0]);
|
|
platform_ = v8::platform::NewDefaultPlatform();
|
|
v8::V8::InitializePlatform(platform_.get());
|
|
#ifdef V8_VIRTUAL_MEMORY_CAGE
|
|
if (!v8::V8::InitializeVirtualMemoryCage()) {
|
|
FATAL("Could not initialize the virtual memory cage");
|
|
}
|
|
#endif
|
|
v8::V8::Initialize();
|
|
|
|
allocator_ = v8::ArrayBuffer::Allocator::NewDefaultAllocator();
|
|
v8::Isolate::CreateParams create_params;
|
|
create_params.array_buffer_allocator = allocator_;
|
|
create_params.allow_atomics_wait = false;
|
|
isolate_ = v8::Isolate::New(create_params);
|
|
|
|
{
|
|
v8::Isolate::Scope isolate_scope(isolate_);
|
|
v8::HandleScope handle_scope(isolate_);
|
|
context_.Reset(isolate_, v8::Context::New(isolate_));
|
|
}
|
|
}
|
|
|
|
FuzzerSupport::~FuzzerSupport() {
|
|
{
|
|
v8::Isolate::Scope isolate_scope(isolate_);
|
|
while (PumpMessageLoop()) {
|
|
// empty
|
|
}
|
|
|
|
v8::HandleScope handle_scope(isolate_);
|
|
context_.Reset();
|
|
}
|
|
|
|
isolate_->LowMemoryNotification();
|
|
isolate_->Dispose();
|
|
isolate_ = nullptr;
|
|
|
|
delete allocator_;
|
|
allocator_ = nullptr;
|
|
|
|
v8::V8::Dispose();
|
|
v8::V8::DisposePlatform();
|
|
}
|
|
|
|
std::unique_ptr<FuzzerSupport> FuzzerSupport::fuzzer_support_;
|
|
|
|
// static
|
|
void FuzzerSupport::InitializeFuzzerSupport(int* argc, char*** argv) {
|
|
#if V8_ENABLE_WEBASSEMBLY
|
|
if (V8_TRAP_HANDLER_SUPPORTED) {
|
|
constexpr bool kUseDefaultTrapHandler = true;
|
|
if (!v8::V8::EnableWebAssemblyTrapHandler(kUseDefaultTrapHandler)) {
|
|
FATAL("Could not register trap handler");
|
|
}
|
|
}
|
|
#endif // V8_ENABLE_WEBASSEMBLY
|
|
DCHECK_NULL(FuzzerSupport::fuzzer_support_);
|
|
FuzzerSupport::fuzzer_support_ =
|
|
std::make_unique<v8_fuzzer::FuzzerSupport>(argc, argv);
|
|
}
|
|
|
|
// static
|
|
FuzzerSupport* FuzzerSupport::Get() {
|
|
DCHECK_NOT_NULL(FuzzerSupport::fuzzer_support_);
|
|
return FuzzerSupport::fuzzer_support_.get();
|
|
}
|
|
|
|
v8::Local<v8::Context> FuzzerSupport::GetContext() {
|
|
v8::Isolate::Scope isolate_scope(isolate_);
|
|
v8::EscapableHandleScope handle_scope(isolate_);
|
|
v8::Local<v8::Context> context =
|
|
v8::Local<v8::Context>::New(isolate_, context_);
|
|
return handle_scope.Escape(context);
|
|
}
|
|
|
|
bool FuzzerSupport::PumpMessageLoop(
|
|
v8::platform::MessageLoopBehavior behavior) {
|
|
return v8::platform::PumpMessageLoop(platform_.get(), isolate_, behavior);
|
|
}
|
|
|
|
} // namespace v8_fuzzer
|
|
|
|
// Explicitly specify some attributes to avoid issues with the linker dead-
|
|
// stripping the following function on macOS, as it is not called directly
|
|
// by fuzz target. LibFuzzer runtime uses dlsym() to resolve that function.
|
|
#if V8_OS_MACOSX
|
|
__attribute__((used)) __attribute__((visibility("default")))
|
|
#endif // V8_OS_MACOSX
|
|
extern "C" int
|
|
LLVMFuzzerInitialize(int* argc, char*** argv) {
|
|
v8_fuzzer::FuzzerSupport::InitializeFuzzerSupport(argc, argv);
|
|
return 0;
|
|
}
|