2007/11/02, "Olivier Delannoy" wrote: > Hi all, > I hope it's the correct place for this question. > > I am trying to profile my application which is organized in several > libraries. I would like to know what I need to do to get a profile > which actually represent my application and not only a part of it. The > program is composed of dynamic libraries and I am interesting in > getting profile from the dynamic libraries functions as well. > Libraries have been compiled using -pg -g3 -O0 as well as the main > program but I can't find any statistics on the usage of functions > defined in libraries. The application is written in C++ and makes use > of a few C libraries (which I am not interested in for profiling). > > What is the common way to gather these information using -pg and gprof. For shared libraries, i use -pg -fno-omit-frame-pointer -fPIC -ggdb2 -O2 The option -fno-omit-frame-pointer is obligatory for -pg or -ggdb2, and -fPIC for shared libraries. And i use gprof --brief For more information, to see ld -o myprog /lib/gcrt0.o myprog.o utils.o -lc_p (info gcc, Ctrl-S -lc_p) I never probed running a profiled program with profiled shared C++ libraries, i only probed it with profiled static C++ libraries. J.C. Pizarro
