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From: Tom Rini <trini@kernel.crashing.org>
To: Olaf Hering <olh@suse.de>
Cc: Andrew Morton <akpm@osdl.org>, linuxppc-dev@lists.linuxppc.org
Subject: Re: [PATCH] fix missing option in binutils version check
Date: Tue, 15 Jun 2004 09:12:58 -0700	[thread overview]
Message-ID: <20040615161258.GA14528@smtp.west.cox.net> (raw)
In-Reply-To: <20040614211931.GA21113@suse.de>


On Mon, Jun 14, 2004 at 11:19:31PM +0200, Olaf Hering wrote:

>  On Mon, Jun 14, Tom Rini wrote:
>
> > ... except that we can have 'dssall' even when CONFIG_ALTIVEC=n, so we
> > need it really on CONFIG_6xx.
>
> switch_mm() has it in CONFIG_ALTIVEC, so checking for CONFIG_ALTIVEC=y
> looks correct to me.

arch/ppc/kernel/l2cr.S unconditionally has 'dssall', and this file is
compiled on all CONFIG_6xx builds.

> > But more importantly, why did you break the check to stop people with
> > broken binutils from trying to compile the kernel, and not fix the rest
> > of the breakage ?
>
> What exactly is broken in the old binutils?

They do not understand 'dssall' (and a few other) instructions.  So in
2.4 we didn't call them directly, but had something along the lines of:
#ifndef DSSALL
#define DSSALL 0x........
#endif

Using dssall was just a choice of convenience.

--
Tom Rini
http://gate.crashing.org/~trini/

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/

  reply	other threads:[~2004-06-15 16:12 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-05  7:43 [PATCH] fix typo in binutils version check Olaf Hering
2004-06-05 10:40 ` Christian Kujau
2004-06-05 11:11   ` Olaf Hering
2004-06-05 13:11     ` Christian Kujau
2004-06-07 15:57     ` Tom Rini
2004-06-08 11:25 ` [PATCH] fix missing option " Olaf Hering
2004-06-10  0:16   ` Tom Rini
2004-06-14  9:15     ` Olaf Hering
2004-06-14 16:23       ` Tom Rini
2004-06-14 17:38         ` Olaf Hering
2004-06-14 18:07           ` Olaf Hering
2004-06-14 20:55             ` Tom Rini
2004-06-14 21:19               ` Olaf Hering
2004-06-15 16:12                 ` Tom Rini [this message]
2004-06-15 17:25                   ` Olaf Hering
2004-06-15 17:46                     ` Tom Rini
2004-07-03 22:29                       ` Olaf Hering
2004-07-04  1:30                         ` Stef Simoens
2004-07-04  2:41                           ` Tom Rini
2004-07-04  8:32                             ` Geert Uytterhoeven
2004-07-04 16:33                               ` Hollis Blanchard
2004-07-25  6:07                                 ` Alan Modra
2004-07-26 19:36                                   ` Tom Rini
2004-07-26 23:03                                     ` Alan Modra
2004-07-26 23:07                                       ` Tom Rini
2004-07-04 18:32                               ` Tom Rini
2004-07-04  7:23                         ` Olaf Hering
2004-07-05 18:32                           ` Tom Rini
2004-07-09  1:34                             ` Tom Rini
2004-07-09  1:43                               ` Tom Rini
2004-07-12  9:06                               ` Olaf Hering
2004-07-12 15:11                                 ` Tom Rini
2004-07-12 18:03                                   ` Tom Rini
2004-07-13 13:49                                     ` Olaf Hering
2004-07-13 14:01                                       ` Tom Rini
2004-07-13 14:02                                         ` Olaf Hering
2004-07-13 14:20                                           ` Tom Rini
2004-07-13 15:18                                             ` Olaf Hering
2004-07-13 15:26                                               ` Tom Rini
2004-07-13 15:29                                                 ` Olaf Hering
2004-07-13 19:45                                                   ` Tom Rini
2004-07-14 23:23                                                   ` Tom Rini
2004-07-15  7:54                                                     ` Geert Uytterhoeven
2004-07-15 12:50                                                     ` Olaf Hering
2004-07-15 14:15                                                       ` Tom Rini
2004-07-15 14:24                                                         ` Olaf Hering
2004-07-15 14:23                                                       ` Tom Rini
2004-07-05 18:18                         ` Tom Rini
  -- strict thread matches above, loose matches on Subject: below --
2004-06-10 16:19 Christian

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