Ejemplo n.º 1
0
    void Utf8SourceInfo::EnsureInitialized(int initialFunctionCount)
    {
        ThreadContext* threadContext = ThreadContext::GetContextForCurrentThread();
        Recycler* recycler = threadContext->GetRecycler();

        if (this->functionBodyDictionary == nullptr)
        {
            // This collection is allocated with leaf allocation policy. The references to the function body
            // here does not keep the function alive. However, the functions remove themselves at finalize
            // so if a function actually is in this map, it means that it is alive.
            this->functionBodyDictionary = RecyclerNew(recycler, FunctionBodyDictionary, recycler,
                initialFunctionCount, threadContext->GetEtwRundownCriticalSection());
        }

        if (CONFIG_FLAG(DeferTopLevelTillFirstCall) && !m_deferredFunctionsInitialized)
        {
            Assert(this->m_deferredFunctionsDictionary == nullptr);
            this->m_deferredFunctionsDictionary = RecyclerNew(recycler, DeferredFunctionsDictionary, recycler,
                initialFunctionCount, threadContext->GetEtwRundownCriticalSection());
            m_deferredFunctionsInitialized = true;
        }
    }
Ejemplo n.º 2
0
//
// Enumerate through all the script contexts in the process and log events
// for each function loaded. Depending on the argument, start or end events are logged.
// In particular, a rundown is needed for the 'Attach' scenario of profiling.
//
void EtwTrace::PerformRundown(bool start)
{
    // Lock threadContext list during etw rundown
    AutoCriticalSection autoThreadContextCs(ThreadContext::GetCriticalSection());

    ThreadContext * threadContext = ThreadContext::GetThreadContextList();
    if(start)
    {
        JS_ETW(EventWriteDCStartInit());
    }
    else
    {
        JS_ETW(EventWriteDCEndInit());
    }

    while(threadContext != nullptr)
    {
        // Take etw rundown lock on this thread context
        AutoCriticalSection autoEtwRundownCs(threadContext->GetEtwRundownCriticalSection());

        ScriptContext* scriptContext = threadContext->GetScriptContextList();
        while(scriptContext != NULL)
        {
            if(scriptContext->IsClosed())
            {
                scriptContext = scriptContext->next;
                continue;
            }
            if(start)
            {
                JS_ETW(EventWriteScriptContextDCStart(scriptContext));

                if(scriptContext->GetSourceContextInfoMap() != nullptr)
                {
                    scriptContext->GetSourceContextInfoMap()->Map( [=] (DWORD_PTR sourceContext, SourceContextInfo * sourceContextInfo)
                    {
                        if (sourceContext != Constants::NoHostSourceContext)
                        {
                            JS_ETW(LogSourceEvent(EventWriteSourceDCStart,
                                sourceContext,
                                scriptContext,
                                /* sourceFlags*/ 0,
                                sourceContextInfo->url));
                        }
                    });
                }
            }
            else
            {
                JS_ETW(EventWriteScriptContextDCEnd(scriptContext));

                if(scriptContext->GetSourceContextInfoMap() != nullptr)
                {
                    scriptContext->GetSourceContextInfoMap()->Map( [=] (DWORD_PTR sourceContext, SourceContextInfo * sourceContextInfo)
                    {
                        if (sourceContext != Constants::NoHostSourceContext)
                        {
                            JS_ETW(LogSourceEvent(EventWriteSourceDCEnd,
                                sourceContext,
                                scriptContext,
                                /* sourceFlags*/ 0,
                                sourceContextInfo->url));
                        }
                    });
                }
            }

            scriptContext->MapFunction([&start] (FunctionBody* body)
            {
#if DYNAMIC_INTERPRETER_THUNK
                if(body->HasInterpreterThunkGenerated())
                {
                    if(start)
                    {
                        LogMethodInterpretedThunkEvent(EventWriteMethodDCStart, body);
                    }
                    else
                    {
                        LogMethodInterpretedThunkEvent(EventWriteMethodDCEnd, body);
                    }
                }
#endif

#if ENABLE_NATIVE_CODEGEN
                body->MapEntryPoints([&](int index, FunctionEntryPointInfo * entryPoint)
                {
                    if(entryPoint->IsCodeGenDone())
                    {
                        if (start)
                        {
                            LogMethodNativeEvent(EventWriteMethodDCStart, body, entryPoint);
                        }
                        else
                        {
                            LogMethodNativeEvent(EventWriteMethodDCEnd, body, entryPoint);
                        }
                    }
                });

                body->MapLoopHeadersWithLock([&](uint loopNumber, LoopHeader* header)
                {
                    header->MapEntryPoints([&](int index, LoopEntryPointInfo * entryPoint)
                    {
                        if(entryPoint->IsCodeGenDone())
                        {
                            if(start)
                            {
                                LogLoopBodyEventBG(EventWriteMethodDCStart, body, header, entryPoint, ((uint16)body->GetLoopNumberWithLock(header)));
                            }
                            else
                            {
                                LogLoopBodyEventBG(EventWriteMethodDCEnd, body, header, entryPoint, ((uint16)body->GetLoopNumberWithLock(header)));
                            }
                        }
                    });
                });
#endif
            });

            scriptContext = scriptContext->next;
        }
#ifdef NTBUILD
        if (EventEnabledJSCRIPT_HOSTING_CEO_START())
        {
            threadContext->EtwLogPropertyIdList();
        }
#endif

        threadContext = threadContext->Next();
    }
    if(start)
    {
        JS_ETW(EventWriteDCStartComplete());
    }
    else
    {
        JS_ETW(EventWriteDCEndComplete());
    }
}