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#include <bits/types/siginfo_t.h>
#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;
};
#define SET_SA_RESTORER(kact, act) \
(kact)->sa_restorer = (act)->sa_restorer
#define RESET_SA_RESTORER(act, kact) \
(act)->sa_restorer = (kact)->sa_restorer
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