Profiling with GPROF

This is a discussion on Profiling with GPROF within the C Programming forums, part of the General Programming Boards category; hi all, I am trying to instrument a DLL, which will be loaded by a third party program. So I ...

  1. #1
    char main() RoshanX's Avatar
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    Profiling with GPROF

    hi all,

    I am trying to instrument a DLL, which will be loaded by a third party program.
    So I compiled and linked the DLL with -pg flag. But when I ran the program, the profile data does not get generated ( the gmon file does not get created ).

    Is it not possible to profile a dll like this ?

    Thank you.
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    CSharpener vart's Avatar
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    I have not used gprof but there are 2 possible reasons (from general point of view)
    1. You may need recompile also the calling exe the same way
    2. You may need to specify module of interest for the gmon before you start the application
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    Frequently Quite Prolix dwks's Avatar
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    I have used gprof . . .
    I have not used gprof but there are 2 possible reasons (from general point of view)
    1. You may need recompile also the calling exe the same way
    Yes, I think you need to, though I've never tried profiling DLLs either.
    2. You may need to specify module of interest for the gmon before you start the application
    No, you don't need to do this. Once a program is compiled with -pg, when run it generates the GPROF file. This can then be parsed with
    Code:
    $ gprof gmon.out
    into stdout.
    dwk

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