Re: [PATCH 6/7] kbuild: make source and include paths absolute

[Jan Blunck <jblunck@suse.de>]

On Mon, 19 May 2008 10:44:56 +0200, Peter Oberparleiter wrote:

> From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
> 
> Change all source and include paths to absolute form when
> CONFIG_GCOV_PROFILE is enabled.
> 
> Example:
> 
>   gcc -Idir1 -c a.c -o a.o
> 
> will become
> 
>   gcc -I/path/to/dir1 -c /path/to/a.c -o a.o
> 
> Required by the gcov profiling infrastructure: when compiling with
> option -fprofile-arcs, gcc stores file names inside object files.
> Relative paths prevent the gcov tool from finding corresponding source
> files.

I think it would be good to fix this in the gcov tool. When I think
of distribution kernels the source usually ends up in a different
place in the packages than the kernel was originally compiled. So
it would be good to extend gcov here or let it search in well known
locations first (/usr/src/linux, /usr/src/debug/...).

Cheers,
Jan