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Date: Fri, 26 May 2006 08:28:28 -0700
From: Andrew Morton <akpm@osdl.org>
To: "Jan Beulich" <jbeulich@novell.com>
Cc: mingo@elte.hu, ak@suse.de, linux-kernel@vger.kernel.org,
       discuss@x86-64.org
Subject: Re: [PATCH 6/6] reliable stack trace support (i386 entry.S
 annotations)
Message-Id: <20060526082828.58d7d752.akpm@osdl.org>
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"Jan Beulich" <jbeulich@novell.com> wrote:
>
> >>> Andrew Morton <akpm@osdl.org> 25.05.06 07:23 >>>
> >"Jan Beulich" <jbeulich@novell.com> wrote:
> >>
> >>  #define SAVE_ALL \
> >>   	cld; \
> >>   	pushl %es; \
> >>  +	CFI_ADJUST_CFA_OFFSET 4;\
> >>  +	/*CFI_REL_OFFSET es, 0;*/\
> >>   	pushl %ds; \
> >
> >arch/i386/kernel/entry.S: Assembler messages:
> >arch/i386/kernel/entry.S:757: Error: CFI instruction used without previous .cfi_startproc
> >arch/i386/kernel/entry.S:757: Warning: rest of line ignored; first ignored character is `4'
> >arch/i386/kernel/entry.S:757: Error: CFI instruction used without previous .cfi_startproc
> >arch/i386/kernel/entry.S:757: Warning: rest of line ignored; first ignored character is `4'
> >arch/i386/kernel/entry.S:757: Error: CFI instruction used without previous .cfi_startproc
> >arch/i386/kernel/entry.S:757: Warning: rest of line ignored; first ignored character is `4'
> >arch/i386/kernel/entry.S:757: Error: CFI instruction used without previous .cfi_startproc
> >
> >etcetera.  And
> >
> >arch/i386/kernel/entry.S:757: Error: no such instruction: `eax,0'
> >arch/i386/kernel/entry.S:757: Error: no such instruction: `ebp,0'
> >
> >
> >bix:/usr/src/25> as --version
> >GNU assembler 2.14.90.0.6 20030820
> 
> Still doesn't make sense to me, assuming the merge didn't corrupt anything. The oldest assembler I'm using is
> 2.15.90.0.1.1, but as said before your assembler clearly also supports .cfi_*. Any chance I could see the offending
> entry.S?
> 

http://www.zip.com.au/~akpm/linux/patches/stuff/entry.S