lkml.org 
[lkml]   [2007]   [Mar]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [patch 12/26] Xen-paravirt_ops: Fix patch site clobbers to include return register
Jeremy Fitzhardinge wrote:
> Fix a few clobbers to include the return register. The clobbers set
> is the set of all registers modified (or may be modified) by the code
> snippet, regardless of whether it was deliberate or accidental.
>
> Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
> Cc: Rusty Russell <rusty@rustcorp.com.au>
> Cc: Zachary Amsden <zach@vmware.com>
>
> ---
> include/asm-i386/paravirt.h | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> ===================================================================
> --- a/include/asm-i386/paravirt.h
> +++ b/include/asm-i386/paravirt.h
> @@ -556,7 +556,7 @@ static inline unsigned long __raw_local_
> "popl %%edx; popl %%ecx")
> : "=a"(f): "m"(paravirt_ops.save_fl),
> paravirt_type(PARAVIRT_PATCH(save_fl)),
> - paravirt_clobber(CLBR_NONE)
> + paravirt_clobber(CLBR_EAX)
> : "memory", "cc");
> return f;
>

Has this been tested on older gcc's? I seem to recall them barfing over
things like this.

Zach
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-03-02 01:49    [W:0.322 / U:0.528 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site