profiling with GDB

[abhijit ray]

I am not sure but I think with the simulator for ARM , PPC that comes with gdb you can get profiling informations too
But I don't know hwo .. I have configured and installed simulators for arm-elf , powerpc-eabi and sh ..and am using the simulator quite well but i am not able to get the profiler output 

can anyone help ?
Thanks ..
abhijit ray 

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