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104 lines
3.5 KiB
104 lines
3.5 KiB
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include <stddef.h>
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#include <stdint.h>
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#include "include/v8.h"
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#include "src/isolate.h"
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#include "src/objects.h"
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#include "src/wasm/wasm-interpreter.h"
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#include "src/wasm/wasm-module-builder.h"
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#include "src/wasm/wasm-module.h"
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#include "test/common/wasm/test-signatures.h"
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#include "test/common/wasm/wasm-module-runner.h"
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#include "test/fuzzer/fuzzer-support.h"
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#define WASM_CODE_FUZZER_HASH_SEED 83
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using namespace v8::internal::wasm;
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get();
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v8::Isolate* isolate = support->GetIsolate();
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v8::internal::Isolate* i_isolate =
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reinterpret_cast<v8::internal::Isolate*>(isolate);
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// Clear any pending exceptions from a prior run.
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if (i_isolate->has_pending_exception()) {
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i_isolate->clear_pending_exception();
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}
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v8::Isolate::Scope isolate_scope(isolate);
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v8::HandleScope handle_scope(isolate);
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v8::Context::Scope context_scope(support->GetContext());
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v8::TryCatch try_catch(isolate);
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v8::internal::AccountingAllocator allocator;
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v8::internal::Zone zone(&allocator);
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TestSignatures sigs;
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WasmModuleBuilder builder(&zone);
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v8::internal::wasm::WasmFunctionBuilder* f =
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builder.AddFunction(sigs.i_iii());
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f->EmitCode(data, static_cast<uint32_t>(size));
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f->SetExported();
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f->SetName("main", 4);
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ZoneBuffer buffer(&zone);
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builder.WriteTo(buffer);
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v8::internal::wasm::testing::SetupIsolateForWasmModule(i_isolate);
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v8::internal::HandleScope scope(i_isolate);
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ErrorThrower interpreter_thrower(i_isolate, "Interpreter");
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std::unique_ptr<const WasmModule> module(testing::DecodeWasmModuleForTesting(
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i_isolate, &zone, &interpreter_thrower, buffer.begin(), buffer.end(),
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v8::internal::wasm::ModuleOrigin::kWasmOrigin));
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if (module == nullptr) {
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return 0;
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}
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int32_t result_interpreted;
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{
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WasmVal args[] = {WasmVal(1), WasmVal(2), WasmVal(3)};
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result_interpreted = testing::InterpretWasmModule(
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i_isolate, &interpreter_thrower, module.get(), 0, args);
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}
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ErrorThrower compiler_thrower(i_isolate, "Compiler");
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v8::internal::Handle<v8::internal::JSObject> instance =
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testing::InstantiateModuleForTesting(i_isolate, &compiler_thrower,
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module.get());
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if (!interpreter_thrower.error()) {
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CHECK(!instance.is_null());
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} else {
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return 0;
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}
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int32_t result_compiled;
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{
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v8::internal::Handle<v8::internal::Object> arguments[] = {
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v8::internal::handle(v8::internal::Smi::FromInt(1), i_isolate),
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v8::internal::handle(v8::internal::Smi::FromInt(2), i_isolate),
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v8::internal::handle(v8::internal::Smi::FromInt(3), i_isolate)};
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result_compiled = testing::CallWasmFunctionForTesting(
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i_isolate, instance, &compiler_thrower, "main", arraysize(arguments),
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arguments, v8::internal::wasm::ModuleOrigin::kWasmOrigin);
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}
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if (result_interpreted == 0xdeadbeef) {
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CHECK(i_isolate->has_pending_exception());
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i_isolate->clear_pending_exception();
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} else {
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if (result_interpreted != result_compiled) {
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V8_Fatal(__FILE__, __LINE__, "WasmCodeFuzzerHash=%x",
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v8::internal::StringHasher::HashSequentialString(
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data, static_cast<int>(size), WASM_CODE_FUZZER_HASH_SEED));
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}
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}
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return 0;
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}
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