[PATCH] sigaction should clear all signals on SIG_IGN, not just < 32

[powerpc.git] / include / linux / signal.h

diff --git a/include/linux/signal.h b/include/linux/signal.h
index ea9eff1..b7d0935 100644 (file)
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -94,6 +94,23 @@ static inline int sigfindinword(unsigned long word)
 
 #endif /* __HAVE_ARCH_SIG_BITOPS */
 
+static inline int sigisemptyset(sigset_t *set)
+{
+       extern void _NSIG_WORDS_is_unsupported_size(void);
+       switch (_NSIG_WORDS) {
+       case 4:
+               return (set->sig[3] | set->sig[2] |
+                       set->sig[1] | set->sig[0]) == 0;
+       case 2:
+               return (set->sig[1] | set->sig[0]) == 0;
+       case 1:
+               return set->sig[0] == 0;
+       default:
+               _NSIG_WORDS_is_unsupported_size();
+               return 0;
+       }
+}
+
 #define sigmask(sig)   (1UL << ((sig) - 1))
 
 #ifndef __HAVE_ARCH_SIG_SETOPS