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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _M68K_SIGNAL_H
#define _M68K_SIGNAL_H
#include <uapi/asm/signal.h>
/* Most things should be clean enough to redefine this at will, if care
is taken to make libc match. */
#define _NSIG 64
#define _NSIG_BPW 32
#define _NSIG_WORDS (_NSIG / _NSIG_BPW)
typedef unsigned long old_sigset_t; /* at least 32 bits */
typedef struct {
unsigned long sig[_NSIG_WORDS];
} sigset_t;
#define __ARCH_HAS_SA_RESTORER
#include <asm/sigcontext.h>
#ifndef CONFIG_CPU_HAS_NO_BITFIELDS
#define __HAVE_ARCH_SIG_BITOPS
static inline void sigaddset(sigset_t *set, int _sig)
{
asm ("bfset %0{%1,#1}"
: "+o" (*set)
: "id" ((_sig - 1) ^ 31)
: "cc");
}
static inline void sigdelset(sigset_t *set, int _sig)
{
asm ("bfclr %0{%1,#1}"
: "+o" (*set)
: "id" ((_sig - 1) ^ 31)
: "cc");
}
static inline int __const_sigismember(sigset_t *set, int _sig)
{
unsigned long sig = _sig - 1;
return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
}
static inline int __gen_sigismember(sigset_t *set, int _sig)
{
int ret;
asm ("bfextu %1{%2,#1},%0"
: "=d" (ret)
: "o" (*set), "id" ((_sig-1) ^ 31)
: "cc");
return ret;
}
#define sigismember(set,sig) \
(__builtin_constant_p(sig) ? \
__const_sigismember(set,sig) : \
__gen_sigismember(set,sig))
#endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
#endif /* _M68K_SIGNAL_H */
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