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Re: Compiling with profiling flags
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
--
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