linux-kernel - Re: 07/26 GIT

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Date:	Fri, 27 Jul 2007 10:59:24 +1000
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Linus Torvalds <torvalds@...ux-foundation.org>
Cc:	Parag Warudkar <parag.warudkar@...il.com>,
	linux-kernel@...r.kernel.org,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Zachary Amsden <zach@...are.com>
Subject: Re: 07/26 GIT - Build breakage

On Thu, 2007-07-26 at 16:07 -0700, Linus Torvalds wrote: 
> 
> On Thu, 26 Jul 2007, Parag Warudkar wrote:
> >
> > arch/i386/kernel/paravirt.o: In function `init_IRQ':
> > (.text+0xb20): multiple definition of `init_IRQ'
> > arch/i386/kernel/i8259.o:(.init.text+0x30): first defined here
> > ld: Warning: size of symbol `init_IRQ' changed from 66 in
> > arch/i386/kernel/i8259.o to 14 in arch/i386/kernel/paravirt.o
> > make[1]: *** [arch/i386/kernel/built-in.o] Error 1
> > make: *** [arch/i386/kernel] Error 2
> 
> Ok, it seems that some versions of gcc/binutils have problems with the 
> games that paravirt introduced with the "weak" thing. 
> 
> I'm not entirely surprised. That stuff was trying to be too clever by 
> half.
> 
> Rusty?

Sure, but this was in .21 and .22.  This config is from 2.6.21.5, in
fact.

Parag, does your arch/i386/kernel/i8259.c look like this around line
384?  If not, perhaps it's a mis-merge for you? 
        
        /* Overridden in paravirt.c */
        void init_IRQ(void) __attribute__((weak, alias("native_init_IRQ")));
        
        void __init native_init_IRQ(void)
        {
        
Thanks,
Rusty.

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