gcc: undefined reference to _mcount (gprof instrumentation)

gcc compiler-construction profiling solaris gprof
MRalwasser picture MRalwasser · Jan 5, 2011 · Viewed 10.8k times · Source

When compiling my c++ sources with the -pg option to inject gprof profile instrumentation code the compile fails with the undefined reference to _mcount error.

Without this option everything compiles (and runs) fine. What is wrong in my case? (Solaris 10 SPARC Platform)

Answer

trojanfoe picture trojanfoe · Jan 5, 2011

Are you both compiling each object file and linking the final executable using the '-pg' flag?

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