Changeset 99374 in webkit for trunk/Source/JavaScriptCore/jsc.cpp

Timestamp:

Nov 6, 2011, 3:39:12 AM (14 years ago)

Author:

[email protected]

Message:

JSC should be able to sample itself in a more flexible way than just sampling flags
​https://bugs.webkit.org/show_bug.cgi?id=71522

Source/JavaScriptCore:

Reviewed by Gavin Barraclough.

Added a construct that looks like SamplingRegion samplingRegion("name").

• JavaScriptCore.exp:
• JavaScriptCore.xcodeproj/project.pbxproj:
• bytecode/SamplingTool.cpp:

(JSC::SamplingRegion::Locker::Locker):
(JSC::SamplingRegion::Locker::~Locker):
(JSC::SamplingRegion::sample):
(JSC::SamplingRegion::dump):
(JSC::SamplingRegion::dumpInternal):
(JSC::SamplingThread::threadStartFunc):

• bytecode/SamplingTool.h:

(JSC::SamplingRegion::SamplingRegion):
(JSC::SamplingRegion::~SamplingRegion):
(JSC::SamplingRegion::exchangeCurrent):

• bytecompiler/BytecodeGenerator.cpp:

(JSC::BytecodeGenerator::generate):

• dfg/DFGDriver.cpp:

(JSC::DFG::compile):

• heap/Heap.cpp:

(JSC::Heap::markRoots):
(JSC::Heap::collect):

• heap/VTableSpectrum.cpp:

(JSC::VTableSpectrum::countVPtr):
(JSC::VTableSpectrum::dump):

• heap/VTableSpectrum.h:
• jsc.cpp:

(main):
(runWithScripts):

• parser/Parser.h:

(JSC::parse):

• runtime/Executable.cpp:

(JSC::EvalExecutable::compileInternal):
(JSC::ProgramExecutable::compileInternal):
(JSC::FunctionExecutable::compileForCallInternal):
(JSC::FunctionExecutable::compileForConstructInternal):

• wtf/Atomics.h:

(WTF::weakCompareAndSwap):

• wtf/Platform.h:
• wtf/Spectrum.h: Added.

(WTF::Spectrum::Spectrum):
(WTF::Spectrum::add):
(WTF::Spectrum::get):
(WTF::Spectrum::begin):
(WTF::Spectrum::end):
(WTF::Spectrum::KeyAndCount::KeyAndCount):
(WTF::Spectrum::KeyAndCount::operator<):
(WTF::Spectrum::buildList):

• wtf/wtf.pri:

Source/JavaScriptGlue:

Reviewed by Gavin Barraclough.

• ForwardingHeaders/wtf/Spectrum.h: Added.

Source/WebCore:

Reviewed by Gavin Barraclough.

No new tests, since no functionality changed.

• ForwardingHeaders/wtf/Spectrum.h: Added.

File:

• trunk/Source/JavaScriptCore/jsc.cpp (modified) (3 diffs)

trunk/Source/JavaScriptCore/jsc.cpp

@@ -32 +32 @@
 #include "JSLock.h"
 #include "JSString.h"
+#include "MainThread.h"
 #include "SamplingTool.h"
 #include <math.h>
@@ -405 +406 @@
 
     // Initialize JSC before getting JSGlobalData.
+    WTF::initializeMainThread();
     JSC::initializeThreading();
 
@@ -472 +474 @@
 #if ENABLE(SAMPLING_FLAGS)
     SamplingFlags::stop();
+#endif
+#if ENABLE(SAMPLING_REGIONS)
+    SamplingRegion::dump();
 #endif
     globalData.dumpSampleData(globalObject->globalExec());