On Mon, 19 Sep 2011, Laura Abbott wrote:

> The 64bit division functions never had unwinding annotations
> added. This prevents a backtrace from being printed within
> the function and if a division by 0 occurs. Add the annotations.
> 
> Signed-off-by: Laura Abbott <[email protected]>
> ---
>  arch/arm/lib/div64.S |    8 ++++++++
>  1 files changed, 8 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/lib/div64.S b/arch/arm/lib/div64.S
> index faa7748..e55c484 100644
> --- a/arch/arm/lib/div64.S
> +++ b/arch/arm/lib/div64.S
> @@ -13,6 +13,7 @@
>   */
>  
>  #include <linux/linkage.h>
> +#include <asm/unwind.h>
>  
>  #ifdef __ARMEB__
>  #define xh r0
> @@ -44,6 +45,7 @@
>   */
>  
>  ENTRY(__do_div64)
> +UNWIND(.fnstart)
>  
>       @ Test for easy paths first.
>       subs    ip, r4, #1
> @@ -189,7 +191,12 @@ ENTRY(__do_div64)
>       moveq   yh, xh
>       moveq   xh, #0
>       moveq   pc, lr
> +UNWIND(.fnend)
>  
> +UNWIND(.fnstart)
> +UNWIND(.pad #4)
> +UNWIND(.save {lr})
> +Ldiv0_64:

Why this phony fnend+fnstart here?


Nicolas
--
To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to