/*
* This function allows the user to query in which mode, if at all,
*VTune is running
*/
ITT_EXTERN_C iJIT_IsProfilingActiveFlags JITAPI iJIT_IsProfilingActive()
{
if (!iJIT_DLL_is_missing)
{
loadiJIT_Funcs();
}
return executionMode;
}
/* The new mode call back routine */
ITT_EXTERN_C void JITAPI
iJIT_RegisterCallbackEx(void *userdata, iJIT_ModeChangedEx
NewModeCallBackFuncEx)
{
/* is it already missing... or the load of functions from the DLL failed */
if (iJIT_DLL_is_missing || !loadiJIT_Funcs())
{
/* then do not bother with notifications */
NewModeCallBackFuncEx(userdata, iJIT_NO_NOTIFICATIONS);
/* Error: could not load JIT functions. */
return;
}
/* nothing to do with the callback */
}
ITT_EXTERN_C int JITAPI
iJIT_NotifyEvent(iJIT_JVM_EVENT event_type, void *EventSpecificData)
{
int ReturnValue = 0;
/* initialization part - the collector has not been loaded yet. */
if (!FUNC_NotifyEvent)
{
if (iJIT_DLL_is_missing)
return 0;
if (!loadiJIT_Funcs())
return 0;
}
if (event_type == iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED ||
event_type == iJVM_EVENT_TYPE_METHOD_UPDATE)
{
if (((piJIT_Method_Load)EventSpecificData)->method_id == 0)
return 0;
}
else if (event_type == iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED_V2)
{
if (((piJIT_Method_Load_V2)EventSpecificData)->method_id == 0)
return 0;
}
else if (event_type == iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED_V3)
{
if (((piJIT_Method_Load_V3)EventSpecificData)->method_id == 0)
return 0;
}
else if (event_type == iJVM_EVENT_TYPE_METHOD_INLINE_LOAD_FINISHED)
{
if (((piJIT_Method_Inline_Load)EventSpecificData)->method_id == 0 ||
((piJIT_Method_Inline_Load)EventSpecificData)->parent_method_id == 0)
return 0;
}
if (FUNC_NotifyEvent)
{
ReturnValue = (int)FUNC_NotifyEvent(event_type, EventSpecificData);
}
return ReturnValue;
}
ITT_EXTERN_C int JITAPI
iJIT_NotifyEvent(iJIT_JVM_EVENT event_type, void *EventSpecificData)
{
int ReturnValue;
/*
* This section is for debugging outside of VTune.
* It creates the environment variables that indicates call graph mode.
* If running outside of VTune remove the remark.
*
*
* static int firstTime = 1;
* char DoCallGraph[12] = "DoCallGraph";
* if (firstTime)
* {
* firstTime = 0;
* SetEnvironmentVariable( "BISTRO_COLLECTORS_DO_CALLGRAPH", DoCallGraph);
* }
*
* end of section.
*/
/* initialization part - the functions have not been loaded yet. This part
* will load the functions, and check if we are in Call Graph mode.
* (for special treatment).
*/
if (!FUNC_NotifyEvent)
{
if (iJIT_DLL_is_missing)
return 0;
/* load the Function from the DLL */
if (!loadiJIT_Funcs())
return 0;
/* Call Graph initialization. */
}
/* If the event is method entry/exit, check that in the current mode
* VTune is allowed to receive it
*/
if ((event_type == iJVM_EVENT_TYPE_ENTER_NIDS ||
event_type == iJVM_EVENT_TYPE_LEAVE_NIDS) &&
(executionMode != iJIT_CALLGRAPH_ON))
{
return 0;
}
/* This section is performed when method enter event occurs.
* It updates the virtual stack, or creates it if this is the first
* method entry in the thread. The stack pointer is decreased.
*/
if (event_type == iJVM_EVENT_TYPE_ENTER_NIDS)
{
#if ITT_PLATFORM==ITT_PLATFORM_WIN
pThreadStack threadStack =
(pThreadStack)TlsGetValue (threadLocalStorageHandle);
#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
pThreadStack threadStack =
(pThreadStack)pthread_getspecific(threadLocalStorageHandle);
#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
/* check for use of reserved method IDs */
if ( ((piJIT_Method_NIDS) EventSpecificData)->method_id <= 999 )
return 0;
if (!threadStack)
{
/* initialize the stack. */
threadStack = (pThreadStack) calloc (sizeof(ThreadStack), 1);
threadStack->TopStack = INIT_TOP_Stack;
threadStack->CurrentStack = INIT_TOP_Stack;
#if ITT_PLATFORM==ITT_PLATFORM_WIN
TlsSetValue(threadLocalStorageHandle,(void*)threadStack);
#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
pthread_setspecific(threadLocalStorageHandle,(void*)threadStack);
#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
}
/* decrease the stack. */
((piJIT_Method_NIDS) EventSpecificData)->stack_id =
(threadStack->CurrentStack)--;
}
/* This section is performed when method leave event occurs
* It updates the virtual stack.
* Increases the stack pointer.
* If the stack pointer reached the top (left the global function)
* increase the pointer and the top pointer.
*/
if (event_type == iJVM_EVENT_TYPE_LEAVE_NIDS)
{
#if ITT_PLATFORM==ITT_PLATFORM_WIN
pThreadStack threadStack =
(pThreadStack)TlsGetValue (threadLocalStorageHandle);
#else /* ITT_PLATFORM==ITT_PLATFORM_WIN */
pThreadStack threadStack =
(pThreadStack)pthread_getspecific(threadLocalStorageHandle);
#endif /* ITT_PLATFORM==ITT_PLATFORM_WIN */
/* check for use of reserved method IDs */
if ( ((piJIT_Method_NIDS) EventSpecificData)->method_id <= 999 )
return 0;
if (!threadStack)
{
/* Error: first report in this thread is method exit */
exit (1);
}
((piJIT_Method_NIDS) EventSpecificData)->stack_id =
++(threadStack->CurrentStack) + 1;
if (((piJIT_Method_NIDS) EventSpecificData)->stack_id
> threadStack->TopStack)
((piJIT_Method_NIDS) EventSpecificData)->stack_id =
(unsigned int)-1;
}
if (event_type == iJVM_EVENT_TYPE_METHOD_LOAD_FINISHED)
{
/* check for use of reserved method IDs */
if ( ((piJIT_Method_Load) EventSpecificData)->method_id <= 999 )
return 0;
}
ReturnValue = (int)FUNC_NotifyEvent(event_type, EventSpecificData);
return ReturnValue;
}
