| /* |
| * Copyright (C) 2008, 2012 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 "LegacyProfiler.h" |
| |
| #include "CallFrame.h" |
| #include "CodeBlock.h" |
| #include "CommonIdentifiers.h" |
| #include "InternalFunction.h" |
| #include "JSFunction.h" |
| #include "JSGlobalObject.h" |
| #include "Nodes.h" |
| #include "Profile.h" |
| #include "ProfileGenerator.h" |
| #include "ProfileNode.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 String& defaultSourceURL, int defaultLineNumber); |
| |
| LegacyProfiler* LegacyProfiler::s_sharedLegacyProfiler = 0; |
| |
| LegacyProfiler* LegacyProfiler::profiler() |
| { |
| if (!s_sharedLegacyProfiler) |
| s_sharedLegacyProfiler = new LegacyProfiler(); |
| return s_sharedLegacyProfiler; |
| } |
| |
| void LegacyProfiler::startProfiling(ExecState* exec, const String& 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; |
| } |
| |
| exec->globalData().m_enabledProfiler = this; |
| RefPtr<ProfileGenerator> profileGenerator = ProfileGenerator::create(exec, title, ++ProfilesUID); |
| m_currentProfiles.append(profileGenerator); |
| } |
| |
| PassRefPtr<Profile> LegacyProfiler::stopProfiling(ExecState* exec, const String& 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()) |
| exec->globalData().m_enabledProfiler = 0; |
| |
| return returnProfile; |
| } |
| } |
| |
| return 0; |
| } |
| |
| void LegacyProfiler::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()) |
| origin->globalData().m_enabledProfiler = 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 LegacyProfiler::willExecute(ExecState* callerCallFrame, JSValue function) |
| { |
| ASSERT(!m_currentProfiles.isEmpty()); |
| |
| dispatchFunctionToProfiles(callerCallFrame, m_currentProfiles, &ProfileGenerator::willExecute, createCallIdentifier(callerCallFrame, function, "", 0), callerCallFrame->lexicalGlobalObject()->profileGroup()); |
| } |
| |
| void LegacyProfiler::willExecute(ExecState* callerCallFrame, const String& 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 LegacyProfiler::didExecute(ExecState* callerCallFrame, JSValue function) |
| { |
| ASSERT(!m_currentProfiles.isEmpty()); |
| |
| dispatchFunctionToProfiles(callerCallFrame, m_currentProfiles, &ProfileGenerator::didExecute, createCallIdentifier(callerCallFrame, function, "", 0), callerCallFrame->lexicalGlobalObject()->profileGroup()); |
| } |
| |
| void LegacyProfiler::didExecute(ExecState* callerCallFrame, const String& sourceURL, int startingLineNumber) |
| { |
| ASSERT(!m_currentProfiles.isEmpty()); |
| |
| dispatchFunctionToProfiles(callerCallFrame, m_currentProfiles, &ProfileGenerator::didExecute, createCallIdentifier(callerCallFrame, JSValue(), sourceURL, startingLineNumber), callerCallFrame->lexicalGlobalObject()->profileGroup()); |
| } |
| |
| void LegacyProfiler::exceptionUnwind(ExecState* handlerCallFrame) |
| { |
| ASSERT(!m_currentProfiles.isEmpty()); |
| |
| dispatchFunctionToProfiles(handlerCallFrame, m_currentProfiles, &ProfileGenerator::exceptionUnwind, createCallIdentifier(handlerCallFrame, JSValue(), "", 0), handlerCallFrame->lexicalGlobalObject()->profileGroup()); |
| } |
| |
| CallIdentifier LegacyProfiler::createCallIdentifier(ExecState* exec, JSValue functionValue, const String& defaultSourceURL, int defaultLineNumber) |
| { |
| if (!functionValue) |
| return CallIdentifier(GlobalCodeExecution, defaultSourceURL, defaultLineNumber); |
| if (!functionValue.isObject()) |
| return CallIdentifier("(unknown)", defaultSourceURL, defaultLineNumber); |
| if (asObject(functionValue)->inherits(JSFunction::s_classinfo()) || asObject(functionValue)->inherits(InternalFunction::s_classinfo())) |
| return createCallIdentifierFromFunctionImp(exec, asObject(functionValue), defaultSourceURL, defaultLineNumber); |
| return CallIdentifier(makeString("(", asObject(functionValue)->methodTable()->className(asObject(functionValue)), " object)"), defaultSourceURL, defaultLineNumber); |
| } |
| |
| CallIdentifier createCallIdentifierFromFunctionImp(ExecState* exec, JSObject* function, const String& defaultSourceURL, int defaultLineNumber) |
| { |
| const String& 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 |