v8/test/fuzzer/parser.cc

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// 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 <limits.h>
#include <stddef.h>
#include <stdint.h>
#include <cctype>
#include <list>
#include "include/v8.h"
#include "src/objects-inl.h"
#include "src/objects.h"
#include "src/parsing/parse-info.h"
#include "src/parsing/parsing.h"
#include "src/parsing/preparser.h"
#include "test/fuzzer/fuzzer-support.h"
bool IsValidInput(const uint8_t* data, size_t size) {
std::list<char> parentheses;
const char* ptr = reinterpret_cast<const char*>(data);
for (size_t i = 0; i != size; ++i) {
// Check that all characters in the data are valid.
if (!(std::isspace(ptr[i]) || std::isprint(ptr[i]))) {
return false;
}
// Check balance of parentheses in the data.
switch (ptr[i]) {
case '(':
case '[':
case '{':
parentheses.push_back(ptr[i]);
break;
case ')':
if (parentheses.back() != '(') return false;
parentheses.pop_back();
break;
case ']':
if (parentheses.back() != '[') return false;
parentheses.pop_back();
break;
case '}':
if (parentheses.back() != '{') return false;
parentheses.pop_back();
break;
default:
break;
}
}
return parentheses.empty();
}
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
if (!IsValidInput(data, size)) {
return 0;
}
v8_fuzzer::FuzzerSupport* support = v8_fuzzer::FuzzerSupport::Get();
v8::Isolate* isolate = support->GetIsolate();
v8::Isolate::Scope isolate_scope(isolate);
v8::HandleScope handle_scope(isolate);
v8::Context::Scope context_scope(support->GetContext());
v8::TryCatch try_catch(isolate);
v8::internal::Isolate* i_isolate =
reinterpret_cast<v8::internal::Isolate*>(isolate);
v8::internal::Factory* factory = i_isolate->factory();
if (size > INT_MAX) return 0;
v8::internal::MaybeHandle<v8::internal::String> source =
factory->NewStringFromOneByte(
v8::internal::Vector<const uint8_t>(data, static_cast<int>(size)));
if (source.is_null()) return 0;
v8::internal::Handle<v8::internal::Script> script =
factory->NewScript(source.ToHandleChecked());
Reland of land: [Parse] ParseInfo owns the parsing Zone. (patchset #1 id:1 of https://codereview.chromium.org/2683733002/ ) Reason for revert: False alarm, bot hiccup Original issue's description: > Revert of Reland: [Parse] ParseInfo owns the parsing Zone. (patchset #7 id:140001 of https://codereview.chromium.org/2632123006/ ) > > Reason for revert: > Speculative revert because of revert needed for https://codereview.chromium.org/2632123006 > > Original issue's description: > > Reland: [Parse] ParseInfo owns the parsing Zone. > > > > Moves ownership of the parsing Zone to ParseInfo with a shared_ptr. This is > > in preperation for enabling background compilation jobs for inner functions > > share the AST in the outer-function's parse zone memory (read-only), with the > > and zone being released when all compilation jobs have completed. > > > > BUG=v8:5203,v8:5215 > > > > Review-Url: https://codereview.chromium.org/2632123006 > > Cr-Original-Commit-Position: refs/heads/master@{#42993} > > Committed: https://chromium.googlesource.com/v8/v8/+/14fb337200d5da09c77438ddd40bea935b1dc823 > > Review-Url: https://codereview.chromium.org/2632123006 > > Cr-Commit-Position: refs/heads/master@{#42996} > > Committed: https://chromium.googlesource.com/v8/v8/+/9e7d5a6065470ca03411d4c8dbc61d1be5c3f84a > > TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org > # Skipping CQ checks because original CL landed less than 1 days ago. > NOPRESUBMIT=true > NOTREECHECKS=true > NOTRY=true > BUG=v8:5203,v8:5215 > > Review-Url: https://codereview.chromium.org/2683733002 > Cr-Commit-Position: refs/heads/master@{#43008} > Committed: https://chromium.googlesource.com/v8/v8/+/9fe08ec067051c5b46e694568bd01c6dba44cc4d TBR=marja@chromium.org,mstarzinger@chromium.org,ahaas@chromium.org,verwaest@chromium.org,rmcilroy@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=v8:5203,v8:5215 Review-Url: https://codereview.chromium.org/2679303003 Cr-Commit-Position: refs/heads/master@{#43015}
2017-02-07 20:46:47 +00:00
v8::internal::ParseInfo info(script);
if (!v8::internal::parsing::ParseProgram(&info, i_isolate)) {
i_isolate->OptionalRescheduleException(true);
}
isolate->RequestGarbageCollectionForTesting(
v8::Isolate::kFullGarbageCollection);
return 0;
}