| /* |
| * 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. 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. |
| */ |
| |
| #include "config.h" |
| #include "ProfileGenerator.h" |
| |
| #include "CallFrame.h" |
| #include "CodeBlock.h" |
| #include "JSGlobalObject.h" |
| #include "JSStringRef.h" |
| #include "JSFunction.h" |
| #include "Interpreter.h" |
| #include "LegacyProfiler.h" |
| #include "Profile.h" |
| #include "Tracing.h" |
| |
| namespace JSC { |
| |
| static const char* NonJSExecution = "(idle)"; |
| |
| PassRefPtr<ProfileGenerator> ProfileGenerator::create(ExecState* exec, const String& title, unsigned uid) |
| { |
| return adoptRef(new ProfileGenerator(exec, title, uid)); |
| } |
| |
| ProfileGenerator::ProfileGenerator(ExecState* exec, const String& title, unsigned uid) |
| : m_origin(exec ? exec->lexicalGlobalObject() : 0) |
| , m_profileGroup(exec ? exec->lexicalGlobalObject()->profileGroup() : 0) |
| { |
| m_profile = Profile::create(title, uid); |
| m_currentNode = m_head = m_profile->head(); |
| if (exec) |
| addParentForConsoleStart(exec); |
| } |
| |
| void ProfileGenerator::addParentForConsoleStart(ExecState* exec) |
| { |
| int lineNumber; |
| intptr_t sourceID; |
| String sourceURL; |
| JSValue function; |
| |
| exec->interpreter()->retrieveLastCaller(exec, lineNumber, sourceID, sourceURL, function); |
| m_currentNode = ProfileNode::create(exec, LegacyProfiler::createCallIdentifier(exec, function ? function.toThisObject(exec) : 0, sourceURL, lineNumber), m_head.get(), m_head.get()); |
| m_head->insertNode(m_currentNode.get()); |
| } |
| |
| const String& ProfileGenerator::title() const |
| { |
| return m_profile->title(); |
| } |
| |
| void ProfileGenerator::willExecute(ExecState* callerCallFrame, const CallIdentifier& callIdentifier) |
| { |
| if (JAVASCRIPTCORE_PROFILE_WILL_EXECUTE_ENABLED()) { |
| CString name = callIdentifier.m_name.utf8(); |
| CString url = callIdentifier.m_url.utf8(); |
| JAVASCRIPTCORE_PROFILE_WILL_EXECUTE(m_profileGroup, const_cast<char*>(name.data()), const_cast<char*>(url.data()), callIdentifier.m_lineNumber); |
| } |
| |
| if (!m_origin) |
| return; |
| |
| ASSERT(m_currentNode); |
| m_currentNode = m_currentNode->willExecute(callerCallFrame, callIdentifier); |
| } |
| |
| void ProfileGenerator::didExecute(ExecState* callerCallFrame, const CallIdentifier& callIdentifier) |
| { |
| if (JAVASCRIPTCORE_PROFILE_DID_EXECUTE_ENABLED()) { |
| CString name = callIdentifier.m_name.utf8(); |
| CString url = callIdentifier.m_url.utf8(); |
| JAVASCRIPTCORE_PROFILE_DID_EXECUTE(m_profileGroup, const_cast<char*>(name.data()), const_cast<char*>(url.data()), callIdentifier.m_lineNumber); |
| } |
| |
| if (!m_origin) |
| return; |
| |
| ASSERT(m_currentNode); |
| if (m_currentNode->callIdentifier() != callIdentifier) { |
| RefPtr<ProfileNode> returningNode = ProfileNode::create(callerCallFrame, callIdentifier, m_head.get(), m_currentNode.get()); |
| returningNode->setStartTime(m_currentNode->startTime()); |
| returningNode->didExecute(); |
| m_currentNode->insertNode(returningNode.release()); |
| return; |
| } |
| |
| m_currentNode = m_currentNode->didExecute(); |
| } |
| |
| void ProfileGenerator::exceptionUnwind(ExecState* handlerCallFrame, const CallIdentifier&) |
| { |
| // If the current node was called by the handler (==) or any |
| // more nested function (>) the we have exited early from it. |
| ASSERT(m_currentNode); |
| while (m_currentNode->callerCallFrame() >= handlerCallFrame) { |
| didExecute(m_currentNode->callerCallFrame(), m_currentNode->callIdentifier()); |
| ASSERT(m_currentNode); |
| } |
| } |
| |
| void ProfileGenerator::stopProfiling() |
| { |
| m_profile->forEach(&ProfileNode::stopProfiling); |
| |
| removeProfileStart(); |
| removeProfileEnd(); |
| |
| ASSERT(m_currentNode); |
| |
| // Set the current node to the parent, because we are in a call that |
| // will not get didExecute call. |
| m_currentNode = m_currentNode->parent(); |
| |
| if (double headSelfTime = m_head->selfTime()) { |
| RefPtr<ProfileNode> idleNode = ProfileNode::create(0, CallIdentifier(NonJSExecution, String(), 0), m_head.get(), m_head.get()); |
| |
| idleNode->setTotalTime(headSelfTime); |
| idleNode->setSelfTime(headSelfTime); |
| idleNode->setVisible(true); |
| |
| m_head->setSelfTime(0.0); |
| m_head->addChild(idleNode.release()); |
| } |
| } |
| |
| // The console.ProfileGenerator that started this ProfileGenerator will be the first child. |
| void ProfileGenerator::removeProfileStart() |
| { |
| ProfileNode* currentNode = 0; |
| for (ProfileNode* next = m_head.get(); next; next = next->firstChild()) |
| currentNode = next; |
| |
| if (currentNode->callIdentifier().m_name != "profile") |
| return; |
| |
| // Attribute the time of the node aobut to be removed to the self time of its parent |
| currentNode->parent()->setSelfTime(currentNode->parent()->selfTime() + currentNode->totalTime()); |
| currentNode->parent()->removeChild(currentNode); |
| } |
| |
| // The console.ProfileGeneratorEnd that stopped this ProfileGenerator will be the last child. |
| void ProfileGenerator::removeProfileEnd() |
| { |
| ProfileNode* currentNode = 0; |
| for (ProfileNode* next = m_head.get(); next; next = next->lastChild()) |
| currentNode = next; |
| |
| if (currentNode->callIdentifier().m_name != "profileEnd") |
| return; |
| |
| // Attribute the time of the node aobut to be removed to the self time of its parent |
| currentNode->parent()->setSelfTime(currentNode->parent()->selfTime() + currentNode->totalTime()); |
| |
| ASSERT(currentNode->callIdentifier() == (currentNode->parent()->children()[currentNode->parent()->children().size() - 1])->callIdentifier()); |
| currentNode->parent()->removeChild(currentNode); |
| } |
| |
| } // namespace JSC |