arch/m68k/include/asm/signal.h

   1 #ifndef _M68K_SIGNAL_H
   2 #define _M68K_SIGNAL_H
   3
   4 #include <uapi/asm/signal.h>
   5
   6 /* Most things should be clean enough to redefine this at will, if care
   7    is taken to make libc match.  */
   8
   9 #define _NSIG           64
  10 #define _NSIG_BPW       32
  11 #define _NSIG_WORDS     (_NSIG / _NSIG_BPW)
  12
  13 typedef unsigned long old_sigset_t;             /* at least 32 bits */
  14
  15 typedef struct {
  16         unsigned long sig[_NSIG_WORDS];
  17 } sigset_t;
  18
  19 #define __ARCH_HAS_SA_RESTORER
  20
  21 #include <asm/sigcontext.h>
  22
  23 #ifndef CONFIG_CPU_HAS_NO_BITFIELDS
  24 #define __HAVE_ARCH_SIG_BITOPS
  25
  26 static inline void sigaddset(sigset_t *set, int _sig)
  27 {
  28         asm ("bfset %0{%1,#1}"
  29                 : "+o" (*set)
  30                 : "id" ((_sig - 1) ^ 31)
  31                 : "cc");
  32 }
  33
  34 static inline void sigdelset(sigset_t *set, int _sig)
  35 {
  36         asm ("bfclr %0{%1,#1}"
  37                 : "+o" (*set)
  38                 : "id" ((_sig - 1) ^ 31)
  39                 : "cc");
  40 }
  41
  42 static inline int __const_sigismember(sigset_t *set, int _sig)
  43 {
  44         unsigned long sig = _sig - 1;
  45         return 1 & (set->sig[sig / _NSIG_BPW] >> (sig % _NSIG_BPW));
  46 }
  47
  48 static inline int __gen_sigismember(sigset_t *set, int _sig)
  49 {
  50         int ret;
  51         asm ("bfextu %1{%2,#1},%0"
  52                 : "=d" (ret)
  53                 : "o" (*set), "id" ((_sig-1) ^ 31)
  54                 : "cc");
  55         return ret;
  56 }
  57
  58 #define sigismember(set,sig)                    \
  59         (__builtin_constant_p(sig) ?            \
  60          __const_sigismember(set,sig) :         \
  61          __gen_sigismember(set,sig))
  62
  63 #endif /* !CONFIG_CPU_HAS_NO_BITFIELDS */
  64
  65 #ifndef __uClinux__
  66 extern void ptrace_signal_deliver(void);
  67 #define ptrace_signal_deliver ptrace_signal_deliver
  68 #endif /* __uClinux__ */
  69
  70 #endif /* _M68K_SIGNAL_H */