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

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Date:	Thu, 22 May 2008 20:17:24 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Peter Oberparleiter <peter.oberparleiter@...ibm.com>
Cc:	linux-kernel@...r.kernel.org, ltp-coverage@...ts.sourceforge.net,
	Sam Ravnborg <sam@...nborg.org>,
	Peter Oberparleiter <oberparleiter@...glemail.com>
Subject: Re: [PATCH 6/7] kbuild: make source and include paths absolute

On Mon, 19 May 2008 10:44:56 +0200 Peter Oberparleiter <peter.oberparleiter@...ibm.com> wrote:

> From: Peter Oberparleiter <peter.oberparleiter@...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 don't like this.  It converts the compiler error messages from
relative paths to absolute paths which is rather obnoxious when
all kernel developent is (or should be) base-directory-agnostic.


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