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

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Message-ID: <20080523171840.GD28257@cs181133002.pp.htv.fi>
Date:	Fri, 23 May 2008 20:18:40 +0300
From:	Adrian Bunk <bunk@...nel.org>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Peter Oberparleiter <peter.oberparleiter@...ibm.com>,
	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 Thu, May 22, 2008 at 08:17:24PM -0700, Andrew Morton wrote:
> 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.

The compiler error messages are already absolute paths when using O=
(see e.g. all error messages sent by me in recent years).

cu
Adrian

-- 

       "Is there not promise of rain?" Ling Tan asked suddenly out
        of the darkness. There had been need of rain for many days.
       "Only a promise," Lao Er said.
                                       Pearl S. Buck - Dragon Seed

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