Re: Resend: [PATCH] x86-64: fix unwind annotations in syscall stubs

From: Alexander van Heukelum
Date: Thu Sep 02 2010 - 18:50:52 EST


On Thu, 02 Sep 2010 13:53 +0100, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote:
> The scope should really extend to the end of the function, not the
> return location.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>
>
> ---
> arch/x86/kernel/entry_64.S | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> --- linux-2.6.36-rc3/arch/x86/kernel/entry_64.S
> +++ 2.6.36-rc3-x86_64-error_entry-unwind-scope/arch/x86/kernel/entry_64.S
> @@ -1445,7 +1445,6 @@ error_swapgs:
> error_sti:
> TRACE_IRQS_OFF
> ret
> - CFI_ENDPROC
>
> /*
> * There are two places in the kernel that can potentially fault with
> @@ -1470,6 +1469,7 @@ bstep_iret:
> /* Fix truncated RIP */
> movq %rcx,RIP+8(%rsp)
> jmp error_swapgs
> + CFI_ENDPROC
> END(error_entry)
>

Indeed.

Acked-by: Alexander van Heukelum <heukelum@xxxxxxxxxxx>
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