linux-kernel - Re: gcc-4.2.0 breakage on powerpc?

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Message-Id: <e3e772afd2f56253d20d5332499cd7ff@kernel.crashing.org>
Date:	Sat, 19 May 2007 18:11:20 +0200
From:	Segher Boessenkool <segher@...nel.crashing.org>
To:	Segher Boessenkool <segher@...nel.crashing.org>
Cc:	Mikael Pettersson <mikpe@...uu.se>,
	lkml Mailing List <linux-kernel@...r.kernel.org>,
	linuxppc-dev list <linuxppc-dev@...abs.org>
Subject: Re: gcc-4.2.0 breakage on powerpc?

>>>> and we'll end up
>>>> having major kernel releases which don't build on i386 with major 
>>>> gcc
>>>> releases, which isn't altogether desirable.
>>>
>>> Yeah, like 4.2.0 with powerpc.  Seems like no one tested it :-(
>>
>> Details please. What exactly are the gcc-4.2.0 problems on powerpc?
>
> http://gcc.gnu.org/PR31490 .  Most stuff using named
> sections won't build; that includes CONFIG_MODULES.
> There is no viable workaround.  The problem is being
> handled.  I'll post a patch for the kernel refusing
> to build with this combination soon.

[Cc:ing the PowerPC list]

Oh btw, most likely this is a problem on 64-bit only.


Segher

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