blob: 4e8949412a8f0d94e2fab4369e0d53a1fbfb5bc6 [file] [log] [blame]
// Copyright 2017 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 <limits.h>
#include <stddef.h>
#include <stdint.h>
#include "include/v8.h"
#include "src/api/api.h"
#include "src/execution/isolate-inl.h"
#include "src/heap/factory.h"
#include "src/objects/objects-inl.h"
#include "src/wasm/wasm-engine.h"
#include "src/wasm/wasm-module.h"
#include "test/common/wasm/flag-utils.h"
#include "test/common/wasm/wasm-module-runner.h"
#include "test/fuzzer/fuzzer-support.h"
#include "test/fuzzer/wasm-fuzzer-common.h"
namespace v8 {
namespace internal {
class WasmModuleObject;
namespace wasm {
namespace fuzzer {
class AsyncFuzzerResolver : public i::wasm::CompilationResultResolver {
AsyncFuzzerResolver(i::Isolate* isolate, bool* done)
: isolate_(isolate), done_(done) {}
void OnCompilationSucceeded(i::Handle<i::WasmModuleObject> module) override {
*done_ = true;
InterpretAndExecuteModule(isolate_, module);
void OnCompilationFailed(i::Handle<i::Object> error_reason) override {
*done_ = true;
i::Isolate* isolate_;
bool* done_;
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
// We explicitly enable staged WebAssembly features here to increase fuzzer
// coverage. For libfuzzer fuzzers it is not possible that the fuzzer enables
// the flag by itself.
// Set some more flags.
FLAG_wasm_async_compilation = true;
FLAG_wasm_max_mem_pages = 32;
FLAG_wasm_max_table_size = 100;
v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get();
v8::Isolate* isolate = support->GetIsolate();
i::Isolate* i_isolate = reinterpret_cast<v8::internal::Isolate*>(isolate);
// Clear any pending exceptions from a prior run.
if (i_isolate->has_pending_exception()) {
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
i::HandleScope internal_scope(i_isolate);
v8::Context::Scope context_scope(support->GetContext());
TryCatch try_catch(isolate);
bool done = false;
auto enabled_features = i::wasm::WasmFeatures::FromIsolate(i_isolate);
constexpr const char* kAPIMethodName = "WasmAsyncFuzzer.compile";
i_isolate, enabled_features,
std::make_shared<AsyncFuzzerResolver>(i_isolate, &done),
ModuleWireBytes(data, data + size), false, kAPIMethodName);
// Wait for the promise to resolve.
while (!done) {
return 0;
} // namespace fuzzer
} // namespace wasm
} // namespace internal
} // namespace v8