gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / libiberty / sigsetmask.c

diff --git a/libiberty/sigsetmask.c b/libiberty/sigsetmask.c
index 2a09e6a6c5ac5bc32aa6ef319427c17e5eaa625c..f7a24246d1fdb15eacb414c35a6cdd98d95e6c4b 100644 (file)
--- a/libiberty/sigsetmask.c
+++ b/libiberty/sigsetmask.c
@@ -3,28 +3,37 @@
    Contributed by Cygnus Support.
    This file is in the public doamin. */
 
-/* Set the current signal mask to the set provided, and return the 
-   previous value */
+/*
+
+@deftypefn Supplemental int sigsetmask (int @var{set})
+
+Sets the signal mask to the one provided in @var{set} and returns
+the old mask (which, for libiberty's implementation, will always
+be the value @code{1}).
+
+@end deftypefn
+
+*/
 
-#define _POSIX_SOURCE
 #include <ansidecl.h>
 /* Including <sys/types.h> seems to be needed by ISC. */
 #include <sys/types.h>
 #include <signal.h>
 
+extern void abort (void) ATTRIBUTE_NORETURN;
+
 #ifdef SIG_SETMASK
 int
-DEFUN(sigsetmask,(set),
-      int set)
+sigsetmask (int set)
 {
-    sigset_t new;
-    sigset_t old;
+    sigset_t new_sig;
+    sigset_t old_sig;
     
-    sigemptyset (&new);
+    sigemptyset (&new_sig);
     if (set != 0) {
       abort(); /* FIXME, we don't know how to translate old mask to new */
     }
-    sigprocmask(SIG_SETMASK, &new, &old);
+    sigprocmask(SIG_SETMASK, &new_sig, &old_sig);
     return 1;  /* FIXME, we always return 1 as old value.  */
 }
 #endif