If you want to do full application profiling, just take a look at "Application Profiler" which is *not* gprof
take a look at function instrumentation
http://community.qnx.com/sf/wiki/do/viewPage/projects.ide/wiki/IDE4.5ApplicationProfilerTrial

to use TraceEvent() and traceparser() just go to "System Analysis Toolkit"
http://www.qnx.com/developers/docs/6.4.0/instr_en/instr/functions.html

to use your own TraceEvent() in your code just use one of the three basic ones
   TraceEvent(_NTO_TRACE_INSERTSUSEREVENT,  1, int_1, int_2);
   TraceEvent(_NTO_TRACE_INSERTUSRSTREVENT, 2, "your message");		
   TraceEvent(_NTO_TRACE_INSERTCUSEREVENT,  3, intArray, numInts);

I'm assuming that you work on traceparser source ...
you will have to register your event callback handler either for a range
or for single events, in this example it is done for a range using the given macros

   TP_CSR(traceparser_cs_range(tp_state, NULL, usr_ev, _NTO_TRACE_USER, _NTO_TRACE_USERFIRST, _NTO_TRACE_USERLAST));

your callback function has to look like this:
static int usr_ev(tp_state_t tp_state, void* d, unsigned h, unsigned t, unsigned* p, unsigned l) {
   // switch over your handled user evnet ids
   switch (_NTO_TRACE_GETEVENT(h)) {
      case 33 : // your event ids here
         (void) fprintf
         (
         g_out_stream,
         "t:0x%08x CPU:%02d USREVENT:EVENT:%d TYPE:MALLOC IP:0x%08x SIZE:%08d PTR:0x%08x\n",
         t,
         _NTO_TRACE_GETCPU(h),
         _NTO_TRACE_GETEVENT(h),
         CS32(p[0]),
         CS32(p[1]),
         CS32(p[2])
         );
         return (0);
....

HTH
/hp



>-----Ursprüngliche Nachricht-----
>Von: Chris Nicholas [mailto:community-noreply@qnx.com] 
>Gesendet: Samstag, 7. Februar 2009 00:31
>An: general-ide
>Betreff: Re: Profiling
>
>I'm a QNX newbie, and after wrestling for a huge amount of 
>time attempting to build all our dependencies with the IDE, I 
>had a lot more luck directly building under native neutrino 
>with command-line GNU "./configure; make..." etc.
>
>However, now I need to profile my code, and I guess the only 
>way is to insert my own traceevent()s 
>throughout.(traceparser?? traceprinter??)
>
>Is there a simple example that takes things all the way from 
>the user code, through traceparse(), etc for user-level code?  
>At some point soon it will have to marry up to a BSP, and 
>presumably new devices and drivers, at which point 
>(hopefully!) I can get my user-level trace events with the new 
>kernel stuff...
>
>thanks in advance!
>Chris
>
>_______________________________________________
>General
>http://community.qnx.com/sf/go/post21690
>
> 
 
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