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Altera_Forum
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13 years ago

Using nios2-elf-gprof with UCOS-II?

Hello All, Is it possible to use the Nios II GNU profiler with applications that use an OS (such as UCOS-II) with multitasking? I have followed the the "Profiling Nios II Systems" guide (u...
Altera_Forum's avatar
Altera_Forum
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13 years ago

IIRC the gmon.out file is usually written from a function registered with libc using at_exit() - so you probably need to call exit() somewhere in order to get those functions called (assuming that uCOSII will do it).

Alternatively you may be able to directkly call the 'dump all the tables' command.

Another possiblity is to request gcc add calls to profiling functions on every function entry/exit - and write your own stubs.