GCOV on arm - no files but /debug/reset

GCOV on arm - no files but /debug/reset

[Karol]

Hello,

I'm trying to use GCOV profiling on ARM architecture without much
success.

I've enabled CONFIG_GCOV=y in .config and added "GCOV_PROFILE := y" to
bunch of Makefiles (in kernel/, fs/, etc.).   According to the docs
(Documentation/gcov.txt) debugfs should be automatically populated
with profile files along with symlinks to sources. However, my
<debugfs>/gcov directory is empty.

I've tested old LTP's gcov patches (to kernel 2.6.25, I think) and it
worked as expected.

Am I missing something obvious?  Hints?

Thanks in advance.

GCOV on arm - no files but /debug/reset

[Karol]

On Thu, 22 Jul 2010 14:44:54 +0000, Karol wrote:
> I've enabled CONFIG_GCOV=y in .config and added "GCOV_PROFILE := y" to
> bunch of Makefiles (in kernel/, fs/, etc.).   According to the docs
> (Documentation/gcov.txt) debugfs should be automatically populated with
> profile files along with symlinks to sources. However, my <debugfs>/gcov
> directory is empty.

Ok, it's almost empty - it contain only "reset" file.

I should add that I'm using 2.6.35-rc3 kernel.