| // 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 <stddef.h> |
| #include <stdint.h> |
| |
| #include "include/v8.h" |
| #include "src/isolate.h" |
| #include "src/objects.h" |
| #include "src/wasm/wasm-interpreter.h" |
| #include "src/wasm/wasm-module-builder.h" |
| #include "src/wasm/wasm-module.h" |
| #include "test/common/wasm/test-signatures.h" |
| #include "test/common/wasm/wasm-module-runner.h" |
| #include "test/fuzzer/fuzzer-support.h" |
| |
| #define WASM_CODE_FUZZER_HASH_SEED 83 |
| |
| using namespace v8::internal::wasm; |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get(); |
| v8::Isolate* isolate = support->GetIsolate(); |
| v8::internal::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); |
| v8::Context::Scope context_scope(support->GetContext()); |
| v8::TryCatch try_catch(isolate); |
| |
| v8::internal::AccountingAllocator allocator; |
| v8::internal::Zone zone(&allocator); |
| |
| TestSignatures sigs; |
| |
| WasmModuleBuilder builder(&zone); |
| |
| v8::internal::wasm::WasmFunctionBuilder* f = |
| builder.AddFunction(sigs.i_iii()); |
| f->EmitCode(data, static_cast<uint32_t>(size)); |
| f->ExportAs(v8::internal::CStrVector("main")); |
| |
| ZoneBuffer buffer(&zone); |
| builder.WriteTo(buffer); |
| |
| v8::internal::wasm::testing::SetupIsolateForWasmModule(i_isolate); |
| |
| v8::internal::HandleScope scope(i_isolate); |
| |
| ErrorThrower interpreter_thrower(i_isolate, "Interpreter"); |
| std::unique_ptr<const WasmModule> module(testing::DecodeWasmModuleForTesting( |
| i_isolate, &zone, &interpreter_thrower, buffer.begin(), buffer.end(), |
| v8::internal::wasm::ModuleOrigin::kWasmOrigin)); |
| |
| if (module == nullptr) { |
| return 0; |
| } |
| int32_t result_interpreted; |
| { |
| WasmVal args[] = {WasmVal(1), WasmVal(2), WasmVal(3)}; |
| result_interpreted = testing::InterpretWasmModule( |
| i_isolate, &interpreter_thrower, module.get(), 0, args); |
| } |
| |
| ErrorThrower compiler_thrower(i_isolate, "Compiler"); |
| v8::internal::Handle<v8::internal::JSObject> instance = |
| testing::InstantiateModuleForTesting(i_isolate, &compiler_thrower, |
| module.get()); |
| |
| if (!interpreter_thrower.error()) { |
| CHECK(!instance.is_null()); |
| } else { |
| return 0; |
| } |
| int32_t result_compiled; |
| { |
| v8::internal::Handle<v8::internal::Object> arguments[] = { |
| v8::internal::handle(v8::internal::Smi::FromInt(1), i_isolate), |
| v8::internal::handle(v8::internal::Smi::FromInt(2), i_isolate), |
| v8::internal::handle(v8::internal::Smi::FromInt(3), i_isolate)}; |
| result_compiled = testing::CallWasmFunctionForTesting( |
| i_isolate, instance, &compiler_thrower, "main", arraysize(arguments), |
| arguments, v8::internal::wasm::ModuleOrigin::kWasmOrigin); |
| } |
| if (result_interpreted == 0xdeadbeef) { |
| CHECK(i_isolate->has_pending_exception()); |
| i_isolate->clear_pending_exception(); |
| } else { |
| if (result_interpreted != result_compiled) { |
| V8_Fatal(__FILE__, __LINE__, "WasmCodeFuzzerHash=%x", |
| v8::internal::StringHasher::HashSequentialString( |
| data, static_cast<int>(size), WASM_CODE_FUZZER_HASH_SEED)); |
| } |
| } |
| return 0; |
| } |