v8/tools/dumpcpp-driver.js
lpy ac3edd40af [prof] Add slide offset in dumpcpp script
An additional slide offset is exported into `shared-library`, which is used to
symbolize C++ stack on systems with ASLR (OS X).

This patch adds slide offset support in dumpcpp script.

BUG=v8:5048

Review-Url: https://codereview.chromium.org/2006813002
Cr-Commit-Position: refs/heads/master@{#36574}
2016-05-30 08:56:59 +00:00

46 lines
1.3 KiB
JavaScript

// 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.
// Dump C++ symbols of shared library if possible
function processArguments(args) {
var processor = new ArgumentsProcessor(args);
if (processor.parse()) {
return processor.result();
} else {
processor.printUsageAndExit();
}
}
function initSourceMapSupport() {
// Pull dev tools source maps into our name space.
SourceMap = WebInspector.SourceMap;
// Overwrite the load function to load scripts synchronously.
SourceMap.load = function(sourceMapURL) {
var content = readFile(sourceMapURL);
var sourceMapObject = (JSON.parse(content));
return new SourceMap(sourceMapURL, sourceMapObject);
};
}
var entriesProviders = {
'unix': UnixCppEntriesProvider,
'windows': WindowsCppEntriesProvider,
'mac': MacCppEntriesProvider
};
var params = processArguments(arguments);
var sourceMap = null;
if (params.sourceMap) {
initSourceMapSupport();
sourceMap = SourceMap.load(params.sourceMap);
}
var cppProcessor = new CppProcessor(
new (entriesProviders[params.platform])(params.nm, params.targetRootFS),
params.timedRange, params.pairwiseTimedRange);
cppProcessor.processLogFile(params.logFileName);
cppProcessor.dumpCppSymbols();