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