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Unified Diff: test/fuzzer/wasm-section-fuzzers.cc

Issue 2336603002: [wasm] Write fuzzers for single wasm sections. (Closed)
Patch Set: Rebase Created 4 years, 3 months ago
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Index: test/fuzzer/wasm-section-fuzzers.cc
diff --git a/test/fuzzer/wasm-section-fuzzers.cc b/test/fuzzer/wasm-section-fuzzers.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6d1c2a47b51a6fcd00a5bd1afbc43b39a49848ae
--- /dev/null
+++ b/test/fuzzer/wasm-section-fuzzers.cc
@@ -0,0 +1,53 @@
+// 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 "test/fuzzer/wasm-section-fuzzers.h"
+
+#include "include/v8.h"
+#include "src/isolate.h"
+#include "src/wasm/encoder.h"
+#include "src/wasm/wasm-module.h"
+#include "src/zone.h"
+#include "test/common/wasm/wasm-module-runner.h"
+#include "test/fuzzer/fuzzer-support.h"
+
+using namespace v8::internal::wasm;
+
+int fuzz_wasm_section(WasmSection::Code section, 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::base::AccountingAllocator allocator;
+ v8::internal::Zone zone(&allocator);
+
+ ZoneBuffer buffer(&zone);
+ buffer.write_u32(kWasmMagic);
+ buffer.write_u32(kWasmVersion);
+ const char* name = WasmSection::getName(section);
+ size_t length = WasmSection::getNameLength(section);
+ buffer.write_size(length); // Section name string size.
+ buffer.write(reinterpret_cast<const uint8_t*>(name), length);
+ buffer.write_u32v(static_cast<uint32_t>(size));
+ buffer.write(data, size);
+
+ ErrorThrower thrower(i_isolate, "decoder");
+
+ std::unique_ptr<const WasmModule> module(testing::DecodeWasmModuleForTesting(
+ i_isolate, &zone, thrower, buffer.begin(), buffer.end(), kWasmOrigin));
+
+ return 0;
+}
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