cb259fbd39
The new fuzzer constructs a dummy module header and uses the fuzzer data only as function code. R=titzer@chromium.org, jochen@chromium.org Review-Url: https://codereview.chromium.org/2280623002 Cr-Commit-Position: refs/heads/master@{#38983}
55 lines
1.8 KiB
C++
55 lines
1.8 KiB
C++
// 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/wasm/encoder.h"
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#include "src/wasm/wasm-js.h"
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#include "src/wasm/wasm-module.h"
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#include "test/cctest/wasm/test-signatures.h"
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#include "test/fuzzer/fuzzer-support.h"
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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::base::AccountingAllocator allocator;
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v8::internal::Zone zone(&allocator);
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v8::internal::wasm::TestSignatures sigs;
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v8::internal::wasm::WasmModuleBuilder builder(&zone);
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uint16_t f1_index = builder.AddFunction();
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v8::internal::wasm::WasmFunctionBuilder* f = builder.FunctionAt(f1_index);
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f->SetSignature(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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v8::internal::wasm::ZoneBuffer buffer(&zone);
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builder.WriteTo(buffer);
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v8::internal::WasmJs::InstallWasmFunctionMap(i_isolate,
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i_isolate->native_context());
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v8::internal::wasm::testing::CompileAndRunWasmModule(
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i_isolate, buffer.begin(), buffer.end(), false);
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return 0;
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}
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