From: Arnd Bergmann <arnd@arndb•de>
To: Paul Mackerras <paulus@samba•org>
Cc: linuxppc-dev@ozlabs•org
Subject: Re: Please pull from 'for_paulus' branch
Date: Fri, 29 Jun 2007 15:45:53 +0200 [thread overview]
Message-ID: <200706291545.53890.arnd@arndb.de> (raw)
In-Reply-To: <18052.42546.78964.805791@cargo.ozlabs.ibm.com>
On Friday 29 June 2007, Paul Mackerras wrote:
> It turns out that with Arnd's patches we now get "-mcpu=3Dpowerpc64" on
> the command line, and that means that gcc *doesn't* put "-mppc64" the
> as command line, and as barfs on the 64-bit instructions. =A0That's
> presumably a gcc bug, but we'll have to work around it. =A0I think the
> best thing is just to not put the -mcpu=3Dpowerpc64 in CFLAGS when no
> specific CPU is selected.
I can't reproduce the problem here unfortunately. My idea was to always
pass _some_ -mcpu=3D flag, in order to make sure it does not use
an inappropriate default, e.g. when the compiler is built for a default
for power4 but you actually want to build a power3 kernel.
Would it work reliably if we switch the arguments to
'-mcpu=3Dpowerpc64 -m64' instead of '-m64 -mcpu=3Dpowerpc64'? That
might be better than taking it out entirely.
Arnd <><
next prev parent reply other threads:[~2007-06-29 13:46 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-06-29 5:24 Please pull from 'for_paulus' branch Kumar Gala
2007-06-29 6:26 ` Paul Mackerras
2007-06-29 7:04 ` Kumar Gala
2007-06-29 9:15 ` Segher Boessenkool
2007-06-29 9:31 ` Paul Mackerras
2007-06-29 9:51 ` Segher Boessenkool
2007-06-29 13:45 ` Arnd Bergmann [this message]
2007-06-29 14:44 ` Kumar Gala
2007-06-29 16:05 ` Arnd Bergmann
2007-06-29 16:09 ` Kumar Gala
2007-06-29 16:10 ` Kumar Gala
2007-06-29 15:22 ` Andreas Schwab
2007-06-30 6:57 ` Paul Mackerras
2007-06-30 8:10 ` Andreas Schwab
2007-06-30 8:14 ` Paul Mackerras
2007-06-30 8:49 ` Andreas Schwab
2007-06-30 10:57 ` Alan Modra
-- strict thread matches above, loose matches on Subject: below --
2007-07-23 21:01 Kumar Gala
2007-07-24 2:56 ` Kumar Gala
2007-07-25 6:43 ` Zang Roy-r61911
2007-07-10 5:42 Kumar Gala
2007-05-15 22:20 Kumar Gala
2007-05-17 10:49 ` Paul Mackerras
2007-05-17 12:05 ` Segher Boessenkool
2007-05-17 12:58 ` Kumar Gala
2007-05-17 13:00 ` Kumar Gala
2007-05-18 6:15 ` Paul Mackerras
2007-05-18 16:51 ` Kumar Gala
2007-02-17 22:38 Kumar Gala
2007-02-17 22:44 ` Kumar Gala
2007-02-13 22:16 Kumar Gala
2007-02-08 21:50 Kumar Gala
2007-02-08 21:52 ` Please pull from 'for_paulus' branch Kumar Gala
2007-02-07 7:51 Kumar Gala
2006-12-08 8:51 Kumar Gala
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