From: Greg Ungerer <gerg@snapgear.com>
To: Andreas Schwab <schwab@linux-m68k.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
linux-m68k@vger.kernel.org, uclinux-dev@uclinux.org,
Greg Ungerer <gerg@uclinux.org>
Subject: Re: [PATCH v3 5/6] m68k: remove duplicate memcpy() implementation
Date: Thu, 26 May 2011 16:23:53 +1000 [thread overview]
Message-ID: <4DDDF1F9.8050902@snapgear.com> (raw)
In-Reply-To: <m3wrhgwmid.fsf@linux-m68k.org>
Hi Andreas, Geert,
On 24/05/11 18:06, Andreas Schwab wrote:
> Geert Uytterhoeven<geert@linux-m68k.org> writes:
>
>> What exactly do you mean by "does not support anything less"? It seems it does
>> restrict instruction generation to 68000 if you ask for it.
>
> The point is that Linux/m68k requires 68020+, so compiling for 68000
> does not make sense (at least back when the gcc configuration was
> created).
Yeah, used to be true :-)
This seems very much to me to be a "broken compiler" issue.
Is it worth putting some form of compiler version limits to protect
compilation in the m68000 case? (Probably no need to limit it for
the existing 68020+ case).
Are there any other gcc defines that we could use instead?
We need to check with your old compiler Geert :-)
I really don't want to use CONFIG_MMU here (or in bitops.h either).
When I work in the ColdFire MMU code this won't be right.
Regards
Greg
------------------------------------------------------------------------
Greg Ungerer -- Principal Engineer EMAIL: gerg@snapgear.com
SnapGear Group, McAfee PHONE: +61 7 3435 2888
8 Gardner Close FAX: +61 7 3217 5323
Milton, QLD, 4064, Australia WEB: http://www.SnapGear.com
next prev parent reply other threads:[~2011-05-26 6:26 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-21 0:24 [PATCH v3 0/6] m68knommu: merge and clean up of arch/m68k/lib files gerg
2011-04-21 0:24 ` [PATCH v3 1/6] m68k: merge mmu and non-mmu versions of muldi3 gerg
2011-04-21 0:24 ` [PATCH v3 2/6] m68k: merge mmu and non-mmu versions of lib/Makefile gerg
2011-04-21 0:24 ` [PATCH v3 3/6] m68k: remove duplicate memmove() implementation gerg
2011-04-21 0:24 ` [PATCH v3 4/6] m68k: remove duplicate memset() implementation gerg
2011-04-21 0:24 ` [PATCH v3 5/6] m68k: remove duplicate memcpy() implementation gerg
2011-04-21 0:24 ` [PATCH v3 6/6] m68k: let Makefile sort out compiling mmu and non-mmu lib/checksum.c gerg
2011-05-23 19:26 ` [PATCH v3 5/6] m68k: remove duplicate memcpy() implementation Geert Uytterhoeven
2011-05-23 19:54 ` Andreas Schwab
2011-05-23 23:55 ` Greg Ungerer
2011-05-24 7:34 ` Andreas Schwab
2011-05-24 7:51 ` Geert Uytterhoeven
2011-05-24 8:06 ` Andreas Schwab
2011-05-26 6:23 ` Greg Ungerer [this message]
2011-05-26 6:38 ` Geert Uytterhoeven
2011-06-02 5:18 ` Greg Ungerer
2011-06-02 7:43 ` Geert Uytterhoeven
2011-06-02 12:34 ` Greg Ungerer
2011-05-26 7:28 ` Gavin Lambert
2011-05-26 11:30 ` [uClinux-dev] " Greg Ungerer
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