a709f77940
This reverts commit313d4844d9. Reason for revert: https://ci.chromium.org/p/v8/builders/ci/V8%20Linux%20gcc/6354 Original change's description: > Reland^3 "[parser] Introduce UnoptimizedCompileFlags" > > This is a reland of0a59e0cb08> which was a reland of146f5375da> which was a reland ofd91679bf3a> > Initializes the BackgroundCompileTasks's language_mode in the > constructor (previously only initialized after successful parse) in case > the parse failed. We still need to reset it after parse in case the > language mode changed (because we encountered "use strict"). > > Original change's description: > > [parser] Introduce UnoptimizedCompileFlags > > > > UnoptimizedCompileFlags defines the input flags shared between parse and > > compile (currently parse-only). It is set initially with some values, and > > is immutable after being passed to ParseInfo (ParseInfo still has getters > > for the fields, but no setters). > > > > Since a few of the existing flags were output flags, ParseInfo now has a > > new output_flags field, which will eventually migrate to a ParseOutputs > > structure. > > > > Bug: v8:10314 > > Change-Id: If3890a5fad883bca80a97bf9dfe44d91797dc286 > > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2096580 > > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > > Reviewed-by: Ulan Degenbaev <ulan@chromium.org> > > Reviewed-by: Simon Zünd <szuend@chromium.org> > > Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> > > Cr-Commit-Position: refs/heads/master@{#66782} > > TBR=ulan@chromium.org,szuend@chromium.org,rmcilroy@chromium.org > > Bug: v8:10314 > Change-Id: Ieee0bbfade4fe0b56de03bff47a7364959608d6a > Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157367 > Reviewed-by: Leszek Swirski <leszeks@chromium.org> > Commit-Queue: Leszek Swirski <leszeks@chromium.org> > Cr-Commit-Position: refs/heads/master@{#67265} TBR=leszeks@chromium.org Change-Id: I90ac035caa76d4c4baf5ce207247d1ce5169fb2f No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: v8:10314 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2157370 Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#67266}
91 lines
2.7 KiB
C++
91 lines
2.7 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 <limits.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <cctype>
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#include <list>
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#include "include/v8.h"
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#include "src/objects/objects-inl.h"
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#include "src/objects/objects.h"
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#include "src/parsing/parse-info.h"
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#include "src/parsing/parsing.h"
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#include "src/parsing/preparser.h"
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#include "test/fuzzer/fuzzer-support.h"
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bool IsValidInput(const uint8_t* data, size_t size) {
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// Ignore too long inputs as they tend to find OOM or timeouts, not real bugs.
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if (size > 2048) return false;
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std::vector<char> parentheses;
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const char* ptr = reinterpret_cast<const char*>(data);
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for (size_t i = 0; i != size; ++i) {
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// Check that all characters in the data are valid.
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if (!std::isspace(ptr[i]) && !std::isprint(ptr[i])) return false;
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// Check balance of parentheses in the data.
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switch (ptr[i]) {
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case '(':
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case '[':
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case '{':
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parentheses.push_back(ptr[i]);
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break;
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case ')':
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if (parentheses.empty() || parentheses.back() != '(') return false;
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parentheses.pop_back();
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break;
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case ']':
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if (parentheses.empty() || parentheses.back() != '[') return false;
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parentheses.pop_back();
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break;
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case '}':
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if (parentheses.empty() || parentheses.back() != '{') return false;
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parentheses.pop_back();
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break;
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default:
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break;
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}
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}
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return parentheses.empty();
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}
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extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
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if (!IsValidInput(data, size)) {
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return 0;
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}
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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::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::internal::Isolate* i_isolate =
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reinterpret_cast<v8::internal::Isolate*>(isolate);
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v8::internal::Factory* factory = i_isolate->factory();
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if (size > INT_MAX) return 0;
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v8::internal::MaybeHandle<v8::internal::String> source =
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factory->NewStringFromOneByte(
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v8::internal::Vector<const uint8_t>(data, static_cast<int>(size)));
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if (source.is_null()) return 0;
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v8::internal::Handle<v8::internal::Script> script =
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factory->NewScript(source.ToHandleChecked());
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v8::internal::ParseInfo info(i_isolate, *script);
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if (!v8::internal::parsing::ParseProgram(&info, script, i_isolate)) {
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i_isolate->OptionalRescheduleException(true);
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}
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isolate->RequestGarbageCollectionForTesting(
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v8::Isolate::kFullGarbageCollection);
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return 0;
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}
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