gcc: undefined reference to _mcount (gprof instrum

2019-03-24 15:38发布

问题:

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)

回答1:

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