1 files changed, 50 insertions, 0 deletions
diff --git a/sysdeps/stub/sigprocmask.c b/sysdeps/stub/sigprocmask.c
new file mode 100644
index 0000000000..a89f683d54
--- /dev/null
+++ b/sysdeps/stub/sigprocmask.c
@@ -0,0 +1,50 @@
+/* Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <ansidecl.h>
+#include <errno.h>
+#include <signal.h>
+
+
+/* If SET is not NULL, modify the current set of blocked signals
+   according to HOW, which may be SIG_BLOCK, SIG_UNBLOCK or SIG_SETMASK.
+   If OSET is not NULL, store the old set of blocked signals in *OSET.  */
+int
+DEFUN(__sigprocmask, (how, set, oset),
+      int how AND CONST sigset_t *set AND sigset_t *oset)
+{
+  switch (how)
+    {
+    case SIG_BLOCK:
+    case SIG_UNBLOCK:
+    case SIG_SETMASK:
+      break;
+    default:
+      errno = EINVAL;
+      return -1;
+    }
+
+  errno = ENOSYS;
+  return -1;
+}
+
+/* No stub warning because abort calls __sigprocmask,
+   and we don't want warnings for every use of abort on
+   a system without safe signals.  */
+
+weak_alias (__sigprocmask, sigprocmask)