1 files changed, 63 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/sigaction.c b/sysdeps/unix/sysv/linux/sigaction.c
new file mode 100644
index 0000000000..a7b3e07dae
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sigaction.c
@@ -0,0 +1,63 @@
+/* Copyright (C) 1997 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., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include <signal.h>
+
+/* The difference here is that the sigaction structure used in the
+   kernel is not the same as we use in the libc.  Therefore we must
+   translate it here.  */
+#include <kernel_sigaction.h>
+
+extern int __syscall_sigaction (int, const struct kernel_sigaction *,
+				struct kernel_sigaction *);
+
+/* If ACT is not NULL, change the action for SIG to *ACT.
+   If OACT is not NULL, put the old action for SIG in *OACT.  */
+int
+__sigaction (sig, act, oact)
+     int sig;
+     const struct sigaction *act;
+     struct sigaction *oact;
+{
+  struct kernel_sigaction k_sigact, k_osigact;
+  int error;
+
+  if (act)
+    {
+      k_sigact.sa_handler = act->sa_handler;
+      k_sigact.sa_mask = act->sa_mask.__val[0];
+      k_sigact.sa_flags = act->sa_flags;
+#ifdef HAVE_SA_RESTORER
+      k_sigact.sa_restorer = act->sa_restorer;
+#endif
+    }
+  error = __syscall_sigaction (sig, act ? &k_sigact : 0,
+			       oact ? &k_osigact : 0);
+  if (oact && error >= 0)
+    {
+      oact->sa_handler = k_osigact.sa_handler;
+      oact->sa_mask.__val[0] = k_osigact.sa_mask;
+      oact->sa_flags = k_osigact.sa_flags;
+#ifdef HAVE_SA_RESTORER
+      oact->sa_restorer = k_osigact.sa_restorer;
+#endif
+    }
+  return error;
+}
+
+weak_alias (__sigaction, sigaction)