Compiling with profiling flags

[Seongbae Park]

On 10/17/06, Revital1 Eres <ERES@il.ibm.com> wrote:
>
> Hello,
>
> Is there an option to change the name of the .gcno file that is generated
> by using profiling
> flags like -fprofile-generate and later used by -fprofile-use?
> I read that "For each source file compiled with `-fprofile-arcs', an
> accompanying
>  `.gcda' file will be placed in the object file directory. " - Can I change
> it such that
> the .gcda will be named as I wish?
>
> Thanks

As far as I know, there's no easy way to do that.

However, by setting the environment variable GCOV_PREFIX
during the execution of the instrumented program,
you can redirect where the gcda files are stored.

Alas, I don't know any way to use such out-of-place stored gcda
for -fprofile-use.
I have changes that add an option to enable exactly that
but lacking the copyright assignment, I can't send it as a patch
- which also includes some other profile related enhancements
mentioned in:

http://gcc.gnu.org/wiki/ProfileFeedbackEnhancements
-- 
#pragma ident "Seongbae Park, compiler, http://seongbae.blogspot.com"