Help: profiling the kernel module

[Raghuramchary J. <Rag...@ln...>]

Hello Experts,
I'm trying to profile the pcie driver using oprofile. From the FAQ I see that -p option is given to profile the kernel modules. But I get invalid argument when I execute the -p option. Below are the steps I tried:
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opcontrol --setup --no-vmlinux
opcontrol --reset
opcontrol -p pcie.ko >> specifying the kernel module name gives invalid argument
opcontrol --start
./myapp
opcontrol --dump
opcontrol --shutdown
opreport -l
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Please let me know if I'm missing anything. Do I need to make changes in makefile to build the .ko module? Any events I need to set? I've tried setting up BUS_TRANS_ANY events opcontrol --event=BUS_TRAN_ANY:500:0x40 but I don't get any useful info . My driver is fpga based pcie driver which reads and writes the data.

Appreciate your help.

Thanks,
Raghu

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