From: Segher Boessenkool <segher@kernel.crashing.org>
To: benh@kernel.crashing.org
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org, arnd@arndb.de
Subject: Re: [PATCH 1/7] PowerPC64: Not to insert EA=0 entry at
Date: Fri, 28 Sep 2007 18:33:06 +0200 [thread overview]
Message-ID: <90f98bce38007cef1fb84d7088ffd95d@kernel.crashing.org> (raw)
In-Reply-To: <1190932629.6158.37.camel@pasglop>
> Also, you may want to try adding --ffixed-r13 to the CFLAGS in the
> makefile and let us know if it makes a difference... r13 is marked
> reserved by the ABI but segher seems to imply that gcc may decide to
> ues
> it anyway (ouch !)
That's what I thought for a second, but I misread the GCC sources.
This however brings up another point: for PPC32, -ffixed-r2 is
superfluous for all the same reasons as why we don't need -ffixed-r13
on PPC64. Is there any reason to keep it or is this just historical
cruft?
Segher
prev parent reply other threads:[~2007-09-28 16:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-27 8:01 [PATCH 1/7] PowerPC64: Not to insert EA=0 entry at kou.ishizaki
2007-09-27 8:18 ` Benjamin Herrenschmidt
2007-09-27 11:22 ` Ishizaki Kou
2007-09-27 22:08 ` Benjamin Herrenschmidt
2007-09-27 22:20 ` Benjamin Herrenschmidt
2007-09-27 22:37 ` Benjamin Herrenschmidt
2007-09-28 8:04 ` Ishizaki Kou
2007-09-28 9:29 ` Benjamin Herrenschmidt
2007-09-28 16:33 ` Segher Boessenkool [this message]
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