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66 lines
1.3 KiB
66 lines
1.3 KiB
/* 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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