linux-kernel - Re: [RFC PATCH 0/2] kbuild: use relative path from $(srctree) instead of __FILE_

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Date:   Fri, 21 Apr 2017 21:40:04 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Masahiro Yamada <yamada.masahiro@...ionext.com>
Cc:     linux-kbuild <linux-kbuild@...r.kernel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Michal Marek <mmarek@...e.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Sam Ravnborg <sam@...nborg.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC PATCH 0/2] kbuild: use relative path from $(srctree) instead
 of __FILE__

Hi Yamada-san,

On Fri, Apr 21, 2017 at 9:03 PM, Masahiro Yamada
<yamada.masahiro@...ionext.com> wrote:
> Kbuild works in objtree, not in srctree.  So, __FILE__ is prefixed
> with $(srctree)/ for out-of-tree build.
>
> It would be nice to see the same log regardless
> in-tree, or out-of-tree build.
>
> 1/2 adds a new macro KBUILD_FILE.  This points the relative path
> of the file we are building.  This is intended to replace __FILE__.
>
> 2/2 replaces __FILE__ in bug.h as an example.  This will improve
> the output of WARN_ON() etc.

I haven't tried your series, but I love the idea behind it!
I never liked exposing full file paths in kernel images.

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds