diff options
Diffstat (limited to 'kernel/arch/m68k/include/asm/signal.h')
-rw-r--r-- | kernel/arch/m68k/include/asm/signal.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/kernel/arch/m68k/include/asm/signal.h b/kernel/arch/m68k/include/asm/signal.h new file mode 100644 index 000000000..8c8ce5e1e --- /dev/null +++ b/kernel/arch/m68k/include/asm/signal.h @@ -0,0 +1,70 @@ +#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 */ + +#ifndef __uClinux__ +extern void ptrace_signal_deliver(void); +#define ptrace_signal_deliver ptrace_signal_deliver +#endif /* __uClinux__ */ + +#endif /* _M68K_SIGNAL_H */ |