Line data Source code
1 : // Copyright 2017 the V8 project authors. All rights reserved.
2 : // Use of this source code is governed by a BSD-style license that can be
3 : // found in the LICENSE file.
4 :
5 : #include <limits.h>
6 : #include <stddef.h>
7 : #include <stdint.h>
8 :
9 : #include "include/v8.h"
10 : #include "src/api.h"
11 : #include "src/heap/factory.h"
12 : #include "src/isolate-inl.h"
13 : #include "src/objects-inl.h"
14 : #include "src/wasm/wasm-engine.h"
15 : #include "src/wasm/wasm-module.h"
16 : #include "test/common/wasm/flag-utils.h"
17 : #include "test/common/wasm/wasm-module-runner.h"
18 : #include "test/fuzzer/fuzzer-support.h"
19 : #include "test/fuzzer/wasm-fuzzer-common.h"
20 :
21 : namespace v8 {
22 : namespace internal {
23 : class WasmModuleObject;
24 :
25 : namespace wasm {
26 : namespace fuzzer {
27 :
28 6 : class AsyncFuzzerResolver : public i::wasm::CompilationResultResolver {
29 : public:
30 : AsyncFuzzerResolver(i::Isolate* isolate, bool* done)
31 3 : : isolate_(isolate), done_(done) {}
32 :
33 2 : void OnCompilationSucceeded(i::Handle<i::WasmModuleObject> module) override {
34 2 : *done_ = true;
35 2 : InterpretAndExecuteModule(isolate_, module);
36 2 : }
37 :
38 1 : void OnCompilationFailed(i::Handle<i::Object> error_reason) override {
39 1 : *done_ = true;
40 1 : }
41 :
42 : private:
43 : i::Isolate* isolate_;
44 : bool* done_;
45 : };
46 :
47 3 : extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
48 : FlagScope<bool> turn_on_async_compile(
49 : &v8::internal::FLAG_wasm_async_compilation, true);
50 : FlagScope<uint32_t> max_mem_flag_scope(&v8::internal::FLAG_wasm_max_mem_pages,
51 : 32);
52 : FlagScope<uint32_t> max_table_size_scope(
53 : &v8::internal::FLAG_wasm_max_table_size, 100);
54 3 : v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get();
55 : v8::Isolate* isolate = support->GetIsolate();
56 3 : i::Isolate* i_isolate = reinterpret_cast<v8::internal::Isolate*>(isolate);
57 :
58 : // Clear any pending exceptions from a prior run.
59 3 : if (i_isolate->has_pending_exception()) {
60 0 : i_isolate->clear_pending_exception();
61 : }
62 :
63 : v8::Isolate::Scope isolate_scope(isolate);
64 6 : v8::HandleScope handle_scope(isolate);
65 3 : i::HandleScope internal_scope(i_isolate);
66 3 : v8::Context::Scope context_scope(support->GetContext());
67 6 : TryCatch try_catch(isolate);
68 3 : testing::SetupIsolateForWasmModule(i_isolate);
69 :
70 3 : bool done = false;
71 3 : auto enabled_features = i::wasm::WasmFeaturesFromIsolate(i_isolate);
72 : i_isolate->wasm_engine()->AsyncCompile(
73 : i_isolate, enabled_features,
74 : std::make_shared<AsyncFuzzerResolver>(i_isolate, &done),
75 18 : ModuleWireBytes(data, data + size), false);
76 :
77 : // Wait for the promise to resolve.
78 11 : while (!done) {
79 5 : support->PumpMessageLoop(platform::MessageLoopBehavior::kWaitForWork);
80 5 : isolate->RunMicrotasks();
81 : }
82 3 : return 0;
83 : }
84 :
85 : } // namespace fuzzer
86 : } // namespace wasm
87 : } // namespace internal
88 9 : } // namespace v8
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