8de33e292e
This will make our generic fuzzers (wasm-fuzzer, wasm-code-fuzzer, wasm-async-fuzzer, ...) fuzz wasm-gc opcodes. We were already fuzzing specific instructions in the wasm-compile fuzzer, but were missing fuzzer coverage for corner cases and instructions not supported by that fuzzer. R=jkummerow@chromium.org CC=manoskouk@chromium.org Bug: v8:13496 Change-Id: Iccca96e32a64d20c11bc425fb5b1e9a1e3aa7486 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4030986 Commit-Queue: Clemens Backes <clemensb@chromium.org> Reviewed-by: Jakob Kummerow <jkummerow@chromium.org> Cr-Commit-Position: refs/heads/main@{#84310}
59 lines
2.0 KiB
C++
59 lines
2.0 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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#ifndef WASM_FUZZER_COMMON_H_
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#define WASM_FUZZER_COMMON_H_
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#include <stddef.h>
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#include <stdint.h>
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#include <memory>
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#include "src/wasm/module-decoder.h"
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#include "src/wasm/wasm-module-builder.h"
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namespace v8 {
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namespace internal {
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namespace wasm {
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namespace fuzzer {
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// First instantiates and interprets the "main" function within module_object if
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// possible. If the interpretation finishes within kMaxSteps steps,
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// module_object is instantiated again and the compiled "main" function is
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// executed.
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void InterpretAndExecuteModule(
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Isolate* isolate, Handle<WasmModuleObject> module_object,
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Handle<WasmModuleObject> module_ref = Handle<WasmModuleObject>::null(),
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int32_t* max_steps = nullptr, int32_t* nondeterminism = nullptr);
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void GenerateTestCase(Isolate* isolate, ModuleWireBytes wire_bytes,
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bool compiles);
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// On the first call, enables all staged wasm features and experimental features
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// that are ready for fuzzing. All subsequent calls are no-ops. This avoids race
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// conditions with threads reading the flags. Fuzzers are executed in their own
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// process anyway, so this should not interfere with anything.
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void EnableExperimentalWasmFeatures(v8::Isolate* isolate);
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class WasmExecutionFuzzer {
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public:
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virtual ~WasmExecutionFuzzer() = default;
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void FuzzWasmModule(base::Vector<const uint8_t> data,
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bool require_valid = false);
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virtual size_t max_input_size() const { return 512; }
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protected:
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virtual bool GenerateModule(Isolate* isolate, Zone* zone,
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base::Vector<const uint8_t> data,
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ZoneBuffer* buffer,
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bool liftoff_as_reference) = 0;
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};
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} // namespace fuzzer
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} // namespace wasm
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} // namespace internal
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} // namespace v8
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#endif // WASM_FUZZER_COMMON_H_
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