[PATCH 3/3] Add __pause_nocancel weak alias.

[Carmelo AMOROSO]

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On 1/12/2011 1:07 PM, Will Newton wrote:
> On architectures that don't provide __NR_pause __pause_nocancel is
> needed when wanting to perform an uncancelable pause.
> 
> Signed-off-by: Matt Fleming <matthew.fleming at imgtec.com>
> ---
> libc/sysdeps/linux/common/pause.c | 1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)
> 
> diff --git a/libc/sysdeps/linux/common/pause.c
> b/libc/sysdeps/linux/common/pause.c
> index ab16fa7..036f6a3 100644
> --- a/libc/sysdeps/linux/common/pause.c
> +++ b/libc/sysdeps/linux/common/pause.c
> @@ -34,6 +34,7 @@ __libc_pause (void)
> return sigsuspend (&set);
> }
> weak_alias (__libc_pause, pause)
> +weak_alias (__libc_pause, __pause_nocancel)
> 
> #ifdef __UCLIBC_HAS_THREADS_NATIVE__
> LIBC_CANCEL_HANDLED (); /* sigsuspend handles our cancellation. */

Hi Will,
if you use NPTL (do you ?), due to the call to sigsupend (that is a
cancellable function too) your __pause_nocancel is actually a
cancellation point. So I'm not sure you issue is fixed.

Am I wrong ?

Carmelo



> --
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