[PATCH 5/5] s390: Use generic kernel_sigaction.h

[Adhemerval Zanella]

I will commit this shortly if no one opposes it.

On 11/12/2018 17:55, Adhemerval Zanella wrote:
> S390 kernel sigaction is the same as the Linux generic one.
> 
> Checked with a s390-linux-gnu and s390x-linux-gnu build.
> 
> 	* sysdeps/unix/sysv/linux/s390/kernel_sigaction.h: Use Linux generic
> 	kernel_sigction definition.
> ---
>  ChangeLog                                     |  3 ++
>  .../unix/sysv/linux/s390/kernel_sigaction.h   | 28 ++-----------------
>  2 files changed, 5 insertions(+), 26 deletions(-)
> 
> diff --git a/sysdeps/unix/sysv/linux/s390/kernel_sigaction.h b/sysdeps/unix/sysv/linux/s390/kernel_sigaction.h
> index 7a6a2c4f29..18000a62cc 100644
> --- a/sysdeps/unix/sysv/linux/s390/kernel_sigaction.h
> +++ b/sysdeps/unix/sysv/linux/s390/kernel_sigaction.h
> @@ -1,30 +1,6 @@
> -#include <bits/types/siginfo_t.h>
> -
> +/* S390 uses the generic Linux UAPI but defines SA_RESTORER.  */
>  #define SA_RESTORER	0x04000000
> -
> -/* This is the sigaction structure from the Linux 3.2 kernel.  */
> -struct kernel_sigaction
> -{
> -  union
> -  {
> -    __sighandler_t _sa_handler;
> -    void (*_sa_sigaction)(int, siginfo_t *, void *);
> -  } _u;
> -#define k_sa_handler _u._sa_handler
> -  /* The 'struct sigaction' definition in s390 kernel header
> -     arch/s390/include/uapi/asm/signal.h is used for __NR_rt_sigaction
> -     on 64 bits and for __NR_sigaction for 31 bits.
> -
> -     The expected layout for __NR_rt_sigaction for 31 bits is either
> -     'struct sigaction' from include/linux/signal_types.h or
> -     'struct compat_sigaction' from include/linux/compat.h.
> -
> -     So for __NR_rt_sigaction we can use the same layout for both s390x
> -     and s390.  */
> -  unsigned long sa_flags;
> -  void (*sa_restorer)(void);
> -  sigset_t sa_mask;
> -};
> +#include <sysdeps/unix/sysv/linux/kernel_sigaction.h>
>  
>  #define SET_SA_RESTORER(kact, act)             \
>    (kact)->sa_restorer = (act)->sa_restorer
>