I just ported oprofile to a TI ARM9. The kernel changes took about a day, but getting the userspace tools built took about 3 days. At least in our distro and Montavista compiler things did not play well with each other. So I spent a good deal of time hand tweaking the Makefile’s. If you want to use a periodic timer interrupt, then I would say 4-5 days max. If you want to use the profiling hardware in your part, I have no idea.






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