gprof and int overflow

[Ian Lance Taylor]

Lewis Hyatt <lhyatt@gmail.com> writes:

> I can't get accurate results for functions called more than 2^32-1 times in
> gprof; it looks like somewhere the function call counts are limited to 32-bit
> integers, even though I am compiling on a 64-bit architecture. Does anyone know
> if this is a limitation of gprof or of the gcc implementation of the -pg option?
> Is there a workaround? I am using binutils 2.17 and gcc 4.1.2 on Debian. Thanks
> very much.

It's a limitation of the format of the gmon.out file.  The counts are
defined to be 32-bit integers.  I don't know of any workaround.

Ian