v8/tools/tickprocessor-driver.js
Tobias Tebbi 58b45cca2f [profiler] fix 4 bugs in --prof/linux-tick-processor
- In log.cc, we used InstructionStart() for code create events, but
  the Code object address for code move events. Change to use
  InstructionStart() for both.
- The symbol table contains some kind of virtual address, not file
  offsets. They happened to be identical in the past but are no longer,
  probably due to toolchain changes. Now we use objdump to figure out
  the difference between virtual addresses and file offsets.
- When a new code object happened to be created at the same address as
  a previous one, we wouldn't update it.
  This is indeed wrong, as predicted in a TODO by Jaro.
- For 64bit addresses, using >>> is wrong, now replaced with division.


Change-Id: Ib23114ed736f98bfc33c65004a039a3fd04d3c49
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2016586
Reviewed-by: Michael Stanton <mvstanton@chromium.org>
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#66145}
2020-02-06 10:38:34 +00:00

84 lines
3.1 KiB
JavaScript

// Copyright 2012 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Tick Processor's code flow.
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 tickProcessor = new TickProcessor(
new (entriesProviders[params.platform])(params.nm, params.objdump, params.targetRootFS,
params.apkEmbeddedLibrary),
params.separateIc,
params.separateBytecodes,
params.separateBuiltins,
params.separateStubs,
params.callGraphSize,
params.ignoreUnknown,
params.stateFilter,
params.distortion,
params.range,
sourceMap,
params.timedRange,
params.pairwiseTimedRange,
params.onlySummary,
params.runtimeTimerFilter,
params.preprocessJson);
tickProcessor.processLogFile(params.logFileName);
tickProcessor.printStatistics();