/*
- * Copyright (C) 2008 Apple Inc. All Rights Reserved.
+ * Copyright (C) 2008, 2014 Apple Inc. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
#include "JSGlobalObject.h"
#include "JSStringRef.h"
#include "JSFunction.h"
-#include "Interpreter.h"
+#include "LegacyProfiler.h"
+#include "JSCInlines.h"
#include "Profile.h"
-#include "Profiler.h"
+#include "StackVisitor.h"
#include "Tracing.h"
namespace JSC {
-static const char* NonJSExecution = "(idle)";
-
-PassRefPtr<ProfileGenerator> ProfileGenerator::create(const UString& title, ExecState* originatingExec, unsigned uid)
+Ref<ProfileGenerator> ProfileGenerator::create(ExecState* exec, const String& title, unsigned uid, PassRefPtr<Stopwatch> stopwatch)
{
- return adoptRef(new ProfileGenerator(title, originatingExec, uid));
+ return adoptRef(*new ProfileGenerator(exec, title, uid, stopwatch));
}
-ProfileGenerator::ProfileGenerator(const UString& title, ExecState* originatingExec, unsigned uid)
- : m_originatingGlobalExec(originatingExec ? originatingExec->lexicalGlobalObject()->globalExec() : 0)
- , m_profileGroup(originatingExec ? originatingExec->lexicalGlobalObject()->profileGroup() : 0)
+ProfileGenerator::ProfileGenerator(ExecState* exec, const String& title, unsigned uid, PassRefPtr<Stopwatch> stopwatch)
+ : m_origin(exec ? exec->lexicalGlobalObject() : nullptr)
+ , m_profileGroup(exec ? exec->lexicalGlobalObject()->profileGroup() : 0)
+ , m_stopwatch(stopwatch)
+ , m_foundConsoleStartParent(false)
+ , m_suspended(false)
{
- m_profile = Profile::create(title, uid);
- m_currentNode = m_head = m_profile->head();
- if (originatingExec)
- addParentForConsoleStart(originatingExec);
+ double startTime = m_stopwatch->elapsedTime();
+ m_profile = Profile::create(title, uid, startTime);
+ m_currentNode = m_rootNode = m_profile->rootNode();
+ if (exec)
+ addParentForConsoleStart(exec, startTime);
}
-void ProfileGenerator::addParentForConsoleStart(ExecState* exec)
+class AddParentForConsoleStartFunctor {
+public:
+ AddParentForConsoleStartFunctor(ExecState* exec, RefPtr<ProfileNode>& rootNode, RefPtr<ProfileNode>& currentNode, double startTime)
+ : m_exec(exec)
+ , m_hasSkippedFirstFrame(false)
+ , m_foundParent(false)
+ , m_rootNode(rootNode)
+ , m_currentNode(currentNode)
+ , m_startTime(startTime)
+ {
+ }
+
+ bool foundParent() const { return m_foundParent; }
+
+ StackVisitor::Status operator()(StackVisitor& visitor)
+ {
+ if (!m_hasSkippedFirstFrame) {
+ m_hasSkippedFirstFrame = true;
+ return StackVisitor::Continue;
+ }
+
+ unsigned line = 0;
+ unsigned column = 0;
+ visitor->computeLineAndColumn(line, column);
+ m_currentNode = ProfileNode::create(m_exec, LegacyProfiler::createCallIdentifier(m_exec, visitor->callee(), visitor->sourceURL(), line, column), m_rootNode.get());
+ m_currentNode->appendCall(ProfileNode::Call(m_startTime));
+ m_rootNode->spliceNode(m_currentNode.get());
+
+ m_foundParent = true;
+ return StackVisitor::Done;
+ }
+
+private:
+ ExecState* m_exec;
+ bool m_hasSkippedFirstFrame;
+ bool m_foundParent;
+ RefPtr<ProfileNode>& m_rootNode;
+ RefPtr<ProfileNode>& m_currentNode;
+ double m_startTime;
+};
+
+void ProfileGenerator::addParentForConsoleStart(ExecState* exec, double startTime)
{
- int lineNumber;
- intptr_t sourceID;
- UString sourceURL;
- JSValue function;
-
- exec->interpreter()->retrieveLastCaller(exec, lineNumber, sourceID, sourceURL, function);
- m_currentNode = ProfileNode::create(Profiler::createCallIdentifier(exec, function ? function.toThisObject(exec) : 0, sourceURL, lineNumber), m_head.get(), m_head.get());
- m_head->insertNode(m_currentNode.get());
+ AddParentForConsoleStartFunctor functor(exec, m_rootNode, m_currentNode, startTime);
+ exec->iterate(functor);
+
+ m_foundConsoleStartParent = functor.foundParent();
}
-const UString& ProfileGenerator::title() const
+const String& ProfileGenerator::title() const
{
return m_profile->title();
}
-void ProfileGenerator::willExecute(const CallIdentifier& callIdentifier)
+void ProfileGenerator::beginCallEntry(ProfileNode* node, double startTime)
+{
+ ASSERT_ARG(node, node);
+
+ if (std::isnan(startTime))
+ startTime = m_stopwatch->elapsedTime();
+
+ node->appendCall(ProfileNode::Call(startTime));
+}
+
+void ProfileGenerator::endCallEntry(ProfileNode* node)
+{
+ ASSERT_ARG(node, node);
+
+ ProfileNode::Call& last = node->lastCall();
+
+ double previousElapsedTime = std::isnan(last.elapsedTime()) ? 0.0 : last.elapsedTime();
+ double newlyElapsedTime = m_stopwatch->elapsedTime() - last.startTime();
+ last.setElapsedTime(previousElapsedTime + newlyElapsedTime);
+}
+
+void ProfileGenerator::willExecute(ExecState* callerCallFrame, const CallIdentifier& callIdentifier)
{
if (JAVASCRIPTCORE_PROFILE_WILL_EXECUTE_ENABLED()) {
- CString name = callIdentifier.m_name.UTF8String();
- CString url = callIdentifier.m_url.UTF8String();
- JAVASCRIPTCORE_PROFILE_WILL_EXECUTE(m_profileGroup, const_cast<char*>(name.data()), const_cast<char*>(url.data()), callIdentifier.m_lineNumber);
+ CString name = callIdentifier.functionName().utf8();
+ CString url = callIdentifier.url().utf8();
+ JAVASCRIPTCORE_PROFILE_WILL_EXECUTE(m_profileGroup, const_cast<char*>(name.data()), const_cast<char*>(url.data()), callIdentifier.lineNumber(), callIdentifier.columnNumber());
}
- if (!m_originatingGlobalExec)
+ if (!m_origin)
+ return;
+
+ if (m_suspended)
return;
- ASSERT_ARG(m_currentNode, m_currentNode);
- m_currentNode = m_currentNode->willExecute(callIdentifier);
+ RefPtr<ProfileNode> calleeNode = nullptr;
+
+ // Find or create a node for the callee call frame.
+ for (const RefPtr<ProfileNode>& child : m_currentNode->children()) {
+ if (child->callIdentifier() == callIdentifier)
+ calleeNode = child;
+ }
+
+ if (!calleeNode) {
+ calleeNode = ProfileNode::create(callerCallFrame, callIdentifier, m_currentNode.get());
+ m_currentNode->addChild(calleeNode);
+ }
+
+ m_currentNode = calleeNode;
+ beginCallEntry(calleeNode.get(), m_stopwatch->elapsedTime());
}
-void ProfileGenerator::didExecute(const CallIdentifier& callIdentifier)
+void ProfileGenerator::didExecute(ExecState* callerCallFrame, const CallIdentifier& callIdentifier)
{
if (JAVASCRIPTCORE_PROFILE_DID_EXECUTE_ENABLED()) {
- CString name = callIdentifier.m_name.UTF8String();
- CString url = callIdentifier.m_url.UTF8String();
- JAVASCRIPTCORE_PROFILE_DID_EXECUTE(m_profileGroup, const_cast<char*>(name.data()), const_cast<char*>(url.data()), callIdentifier.m_lineNumber);
+ CString name = callIdentifier.functionName().utf8();
+ CString url = callIdentifier.url().utf8();
+ JAVASCRIPTCORE_PROFILE_DID_EXECUTE(m_profileGroup, const_cast<char*>(name.data()), const_cast<char*>(url.data()), callIdentifier.lineNumber(), callIdentifier.columnNumber());
}
- if (!m_originatingGlobalExec)
+ if (!m_origin)
return;
- ASSERT_ARG(m_currentNode, m_currentNode);
+ if (m_suspended)
+ return;
+
+ // Make a new node if the caller node has never seen this callee call frame before.
+ // This can happen if |console.profile()| is called several frames deep in the call stack.
+ ASSERT(m_currentNode);
if (m_currentNode->callIdentifier() != callIdentifier) {
- RefPtr<ProfileNode> returningNode = ProfileNode::create(callIdentifier, m_head.get(), m_currentNode.get());
- returningNode->setStartTime(m_currentNode->startTime());
- returningNode->didExecute();
- m_currentNode->insertNode(returningNode.release());
+ RefPtr<ProfileNode> calleeNode = ProfileNode::create(callerCallFrame, callIdentifier, m_currentNode.get());
+ beginCallEntry(calleeNode.get(), m_currentNode->lastCall().startTime());
+ endCallEntry(calleeNode.get());
+ m_currentNode->spliceNode(calleeNode.release());
return;
}
- m_currentNode = m_currentNode->didExecute();
+ endCallEntry(m_currentNode.get());
+ m_currentNode = m_currentNode->parent();
+}
+
+void ProfileGenerator::exceptionUnwind(ExecState* handlerCallFrame, const CallIdentifier&)
+{
+ if (m_suspended)
+ return;
+
+ // 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);
+ for (ProfileNode* node = m_currentNode.get(); node != m_profile->rootNode(); node = node->parent())
+ endCallEntry(node);
- removeProfileStart();
- removeProfileEnd();
+ if (m_foundConsoleStartParent) {
+ removeProfileStart();
+ removeProfileEnd();
+ }
- ASSERT_ARG(m_currentNode, m_currentNode);
+ 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(CallIdentifier(NonJSExecution, UString(), 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.
+// The console.profile 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())
+ ProfileNode* currentNode = nullptr;
+ for (ProfileNode* next = m_rootNode.get(); next; next = next->firstChild())
currentNode = next;
- if (currentNode->callIdentifier().m_name != "profile")
+ if (currentNode->callIdentifier().functionName() != "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.
+// The console.profileEnd 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())
+ ProfileNode* currentNode = nullptr;
+ for (ProfileNode* next = m_rootNode.get(); next; next = next->lastChild())
currentNode = next;
- if (currentNode->callIdentifier().m_name != "profileEnd")
+ if (currentNode->callIdentifier().functionName() != "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);
}
projects / apple / javascriptcore.git / blobdiff