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// 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.h"
#include "src/heap/factory.h"
#include "src/isolate-inl.h"
#include "src/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 {
public:
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;
}
private:
i::Isolate* isolate_;
bool* done_;
};
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
FlagScope<bool> turn_on_async_compile(
&v8::internal::FLAG_wasm_async_compilation, true);
FlagScope<uint32_t> max_mem_flag_scope(&v8::internal::FLAG_wasm_max_mem_pages,
32);
FlagScope<uint32_t> max_table_size_scope(
&v8::internal::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()) {
i_isolate->clear_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);
testing::SetupIsolateForWasmModule(i_isolate);
bool done = false;
i_isolate->wasm_engine()->AsyncCompile(
i_isolate, base::make_unique<AsyncFuzzerResolver>(i_isolate, &done),
ModuleWireBytes(data, data + size), false);
// Wait for the promise to resolve.
while (!done) {
support->PumpMessageLoop(platform::MessageLoopBehavior::kWaitForWork);
isolate->RunMicrotasks();
}
return 0;
}
} // namespace fuzzer
} // namespace wasm
} // namespace internal
} // namespace v8
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