+++ /dev/null
-/*
- * Copyright (C) 2008 Apple Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. 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.
- * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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.
- */
-
-#include "config.h"
-#include "Profiler.h"
-
-#include "CommonIdentifiers.h"
-#include "CallFrame.h"
-#include "CodeBlock.h"
-#include "InternalFunction.h"
-#include "JSFunction.h"
-#include "JSGlobalObject.h"
-#include "Nodes.h"
-#include "Profile.h"
-#include "ProfileGenerator.h"
-#include "ProfileNode.h"
-#include "UStringConcatenate.h"
-#include <stdio.h>
-
-namespace JSC {
-
-static const char* GlobalCodeExecution = "(program)";
-static const char* AnonymousFunction = "(anonymous function)";
-static unsigned ProfilesUID = 0;
-
-static CallIdentifier createCallIdentifierFromFunctionImp(ExecState*, JSObject*, const UString& defaultSourceURL, int defaultLineNumber);
-
-Profiler* Profiler::s_sharedProfiler = 0;
-Profiler* Profiler::s_sharedEnabledProfilerReference = 0;
-
-Profiler* Profiler::profiler()
-{
- if (!s_sharedProfiler)
- s_sharedProfiler = new Profiler();
- return s_sharedProfiler;
-}
-
-void Profiler::startProfiling(ExecState* exec, const UString& title)
-{
- ASSERT_ARG(title, !title.isNull());
-
- // Check if we currently have a Profile for this global ExecState and title.
- // If so return early and don't create a new Profile.
- JSGlobalObject* origin = exec ? exec->lexicalGlobalObject() : 0;
-
- for (size_t i = 0; i < m_currentProfiles.size(); ++i) {
- ProfileGenerator* profileGenerator = m_currentProfiles[i].get();
- if (profileGenerator->origin() == origin && profileGenerator->title() == title)
- return;
- }
-
- s_sharedEnabledProfilerReference = this;
- RefPtr<ProfileGenerator> profileGenerator = ProfileGenerator::create(exec, title, ++ProfilesUID);
- m_currentProfiles.append(profileGenerator);
-}
-
-PassRefPtr<Profile> Profiler::stopProfiling(ExecState* exec, const UString& title)
-{
- JSGlobalObject* origin = exec ? exec->lexicalGlobalObject() : 0;
- for (ptrdiff_t i = m_currentProfiles.size() - 1; i >= 0; --i) {
- ProfileGenerator* profileGenerator = m_currentProfiles[i].get();
- if (profileGenerator->origin() == origin && (title.isNull() || profileGenerator->title() == title)) {
- profileGenerator->stopProfiling();
- RefPtr<Profile> returnProfile = profileGenerator->profile();
-
- m_currentProfiles.remove(i);
- if (!m_currentProfiles.size())
- s_sharedEnabledProfilerReference = 0;
-
- return returnProfile;
- }
- }
-
- return 0;
-}
-
-void Profiler::stopProfiling(JSGlobalObject* origin)
-{
- for (ptrdiff_t i = m_currentProfiles.size() - 1; i >= 0; --i) {
- ProfileGenerator* profileGenerator = m_currentProfiles[i].get();
- if (profileGenerator->origin() == origin) {
- profileGenerator->stopProfiling();
- m_currentProfiles.remove(i);
- if (!m_currentProfiles.size())
- s_sharedEnabledProfilerReference = 0;
- }
- }
-}
-
-static inline void dispatchFunctionToProfiles(ExecState* callerOrHandlerCallFrame, const Vector<RefPtr<ProfileGenerator> >& profiles, ProfileGenerator::ProfileFunction function, const CallIdentifier& callIdentifier, unsigned currentProfileTargetGroup)
-{
- for (size_t i = 0; i < profiles.size(); ++i) {
- if (profiles[i]->profileGroup() == currentProfileTargetGroup || !profiles[i]->origin())
- (profiles[i].get()->*function)(callerOrHandlerCallFrame, callIdentifier);
- }
-}
-
-void Profiler::willExecute(ExecState* callerCallFrame, JSValue function)
-{
- ASSERT(!m_currentProfiles.isEmpty());
-
- dispatchFunctionToProfiles(callerCallFrame, m_currentProfiles, &ProfileGenerator::willExecute, createCallIdentifier(callerCallFrame, function, "", 0), callerCallFrame->lexicalGlobalObject()->profileGroup());
-}
-
-void Profiler::willExecute(ExecState* callerCallFrame, const UString& sourceURL, int startingLineNumber)
-{
- ASSERT(!m_currentProfiles.isEmpty());
-
- CallIdentifier callIdentifier = createCallIdentifier(callerCallFrame, JSValue(), sourceURL, startingLineNumber);
-
- dispatchFunctionToProfiles(callerCallFrame, m_currentProfiles, &ProfileGenerator::willExecute, callIdentifier, callerCallFrame->lexicalGlobalObject()->profileGroup());
-}
-
-void Profiler::didExecute(ExecState* callerCallFrame, JSValue function)
-{
- ASSERT(!m_currentProfiles.isEmpty());
-
- dispatchFunctionToProfiles(callerCallFrame, m_currentProfiles, &ProfileGenerator::didExecute, createCallIdentifier(callerCallFrame, function, "", 0), callerCallFrame->lexicalGlobalObject()->profileGroup());
-}
-
-void Profiler::didExecute(ExecState* callerCallFrame, const UString& sourceURL, int startingLineNumber)
-{
- ASSERT(!m_currentProfiles.isEmpty());
-
- dispatchFunctionToProfiles(callerCallFrame, m_currentProfiles, &ProfileGenerator::didExecute, createCallIdentifier(callerCallFrame, JSValue(), sourceURL, startingLineNumber), callerCallFrame->lexicalGlobalObject()->profileGroup());
-}
-
-void Profiler::exceptionUnwind(ExecState* handlerCallFrame)
-{
- ASSERT(!m_currentProfiles.isEmpty());
-
- dispatchFunctionToProfiles(handlerCallFrame, m_currentProfiles, &ProfileGenerator::exceptionUnwind, createCallIdentifier(handlerCallFrame, JSValue(), "", 0), handlerCallFrame->lexicalGlobalObject()->profileGroup());
-}
-
-CallIdentifier Profiler::createCallIdentifier(ExecState* exec, JSValue functionValue, const UString& defaultSourceURL, int defaultLineNumber)
-{
- if (!functionValue)
- return CallIdentifier(GlobalCodeExecution, defaultSourceURL, defaultLineNumber);
- if (!functionValue.isObject())
- return CallIdentifier("(unknown)", defaultSourceURL, defaultLineNumber);
- if (asObject(functionValue)->inherits(&JSFunction::s_info) || asObject(functionValue)->inherits(&InternalFunction::s_info))
- return createCallIdentifierFromFunctionImp(exec, asObject(functionValue), defaultSourceURL, defaultLineNumber);
- return CallIdentifier(makeUString("(", asObject(functionValue)->methodTable()->className(asObject(functionValue)), " object)"), defaultSourceURL, defaultLineNumber);
-}
-
-CallIdentifier createCallIdentifierFromFunctionImp(ExecState* exec, JSObject* function, const UString& defaultSourceURL, int defaultLineNumber)
-{
- const UString& name = getCalculatedDisplayName(exec, function);
- JSFunction* jsFunction = jsDynamicCast<JSFunction*>(function);
- if (jsFunction && !jsFunction->isHostFunction())
- return CallIdentifier(name.isEmpty() ? AnonymousFunction : name, jsFunction->jsExecutable()->sourceURL(), jsFunction->jsExecutable()->lineNo());
- return CallIdentifier(name.isEmpty() ? AnonymousFunction : name, defaultSourceURL, defaultLineNumber);
-}
-
-} // namespace JSC
projects / apple / javascriptcore.git / blobdiff