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Re: Remove __ASSUME_GETCPU_SYSCALL
- From: Adhemerval Zanella <adhemerval dot zanella at linaro dot org>
- To: libc-alpha at sourceware dot org
- Date: Mon, 8 May 2017 11:29:59 -0300
- Subject: Re: Remove __ASSUME_GETCPU_SYSCALL
- Authentication-results: sourceware.org; auth=none
- References: <alpine.DEB.2.20.1705081406310.25850@digraph.polyomino.org.uk>
On 08/05/2017 11:06, Joseph Myers wrote:
> This patch removes the definition of __ASSUME_GETCPU_SYSCALL. In fact
> this macro is unused, probably since:
>
> commit dd26c44403582fdf10d663170f947dfe4b3207a0
> Author: Adhemerval Zanella <adhemerval.zanella@linaro.com>
> Date: Wed Apr 22 14:21:39 2015 -0300
>
> Consolidate sched_getcpu
>
> so it could have been removed even without the move to 3.2 as minimum
> kernel version on x86_64.
>
> Tested for x86_64.
>
> 2017-05-08 Joseph Myers <joseph@codesourcery.com>
>
> * sysdeps/unix/sysv/linux/x86_64/kernel-features.h
> (__ASSUME_GETCPU_SYSCALL): Remove macro.
LGTM, thanks.
>
> diff --git a/sysdeps/unix/sysv/linux/x86_64/kernel-features.h b/sysdeps/unix/sysv/linux/x86_64/kernel-features.h
> index ea892b1..115e34c 100644
> --- a/sysdeps/unix/sysv/linux/x86_64/kernel-features.h
> +++ b/sysdeps/unix/sysv/linux/x86_64/kernel-features.h
> @@ -17,11 +17,6 @@
> License along with the GNU C Library; if not, see
> <http://www.gnu.org/licenses/>. */
>
> -/* getcpu is a syscall for x86-64 since 3.1. */
> -#if __LINUX_KERNEL_VERSION >= 0x030100
> -# define __ASSUME_GETCPU_SYSCALL 1
> -#endif
> -
> /* Define that x32 is a ILP32 ABI to set the correct interface to pass
> 64-bits values through syscalls. */
> #ifdef __ILP32__
>