Update.

[thirdparty/glibc.git] / sysdeps / unix / sysv / linux / bits / sigaction.h

diff --git a/sysdeps/unix/sysv/linux/bits/sigaction.h b/sysdeps/unix/sysv/linux/bits/sigaction.h
index 1806bb2e92545ca917b57270add7fea1e31c2b48..b6637e5205efb51cfdea4eb63aae07fd6737f7ba 100644 (file)
--- a/sysdeps/unix/sysv/linux/bits/sigaction.h
+++ b/sysdeps/unix/sysv/linux/bits/sigaction.h
@@ -25,7 +25,16 @@
 struct sigaction
   {
     /* Signal handler.  */
-    __sighandler_t sa_handler;
+    union
+      {
+       /* Used if SA_SIGINFO is not set.  */
+       __sighandler_t sa_handler;
+       /* Used if SA_SIGINFO is set.  */
+       void (*sa_sigaction) __P ((int, siginfo_t *, void *));
+      }
+    __sigaction_handler;
+#define sa_handler     __sigaction_handler.sa_handler
+#define sa_sigaction   __sigaction_handler.sa_sigaction
 
     /* Additional set of signals to be blocked.  */
     __sigset_t sa_mask;
@@ -39,17 +48,22 @@ struct sigaction
 
 /* Bits in `sa_flags'.  */
 #define        SA_NOCLDSTOP  1          /* Don't send SIGCHLD when children stop.  */
-#ifdef __USE_MISC
-# define SA_STACK     0x08000000 /* Use signal stack by using `sa_restorer'. */
+#define SA_SIGINFO    4                 /* Invoke signal-catching function with
+                                   three arguments instead of one.  */
+#if defined __USE_UNIX98 || defined __USE_MISC
+# define SA_ONSTACK   0x08000000 /* Use signal stack by using `sa_restorer'. */
 # define SA_RESTART   0x10000000 /* Restart syscall on signal return.  */
-# define SA_INTERRUPT 0x20000000 /* Historical no-op.  */
 # define SA_NODEFER   0x40000000 /* Don't automatically block the signal when
                                    its handler is being executed.  */
 # define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler.  */
+#endif
+#ifdef __USE_MISC
+# define SA_INTERRUPT 0x20000000 /* Historical no-op.  */
 
 /* Some aliases for the SA_ constants.  */
 # define SA_NOMASK    SA_NODEFER
 # define SA_ONESHOT   SA_RESETHAND
+# define SA_STACK     SA_ONSTACK
 #endif
 
 /* Values for the HOW argument to `sigprocmask'.  */