Re: [PATCH][RFC] getting rid of stupid loop in BUG()

From: Al Viro
Date: Tue Jul 24 2007 - 16:04:24 EST


On Tue, Jul 24, 2007 at 12:13:19PM -0700, Jeremy Fitzhardinge wrote:
> Al Viro wrote:
> > Works here...
> >
>
> Hm, doesn't here:
>
> CC arch/i386/kernel/irq.o
> /home/jeremy/hg/xen/paravirt/linux/arch/i386/kernel/irq.c: In function '__BUG':
> include2/asm/bug.h:29: warning: 'noreturn' function does return
>
> This is with current FC7 distro gcc: gcc version 4.1.2 20070502 (Red Hat
> 4.1.2-12)

Interesting... Looks like it's both version- and flags-dependent.
Oh, well...

BTW, alpha, frv, m68k and s390 have BUG() that is not recognized as
noreturn by gcc.
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