1 files changed, 84 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/arm/sigaction.c b/REORG.TODO/sysdeps/unix/sysv/linux/arm/sigaction.c
new file mode 100644
index 0000000000..e4c0d976b0
--- /dev/null
+++ b/REORG.TODO/sysdeps/unix/sysv/linux/arm/sigaction.c
@@ -0,0 +1,84 @@
+/* Copyright (C) 1997-2017 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 Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+
+#include <sysdep.h>
+#include <sys/syscall.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>
+
+#define SA_RESTORER	0x04000000
+
+extern void __default_sa_restorer (void);
+extern void __default_rt_sa_restorer (void);
+
+/* When RT signals are in use we need to use a different return stub.  */
+#define choose_restorer(flags)					\
+  (flags & SA_SIGINFO) ? __default_rt_sa_restorer		\
+  : __default_sa_restorer
+
+/* 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
+__libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
+{
+  int result;
+
+  struct kernel_sigaction kact, koact;
+
+  if (act)
+    {
+      kact.k_sa_handler = act->sa_handler;
+      memcpy (&kact.sa_mask, &act->sa_mask, sizeof (sigset_t));
+      kact.sa_flags = act->sa_flags;
+#ifdef HAVE_SA_RESTORER
+      if (kact.sa_flags & SA_RESTORER)
+	kact.sa_restorer = act->sa_restorer;
+      else
+	{
+	  kact.sa_restorer = choose_restorer (kact.sa_flags);
+	  kact.sa_flags |= SA_RESTORER;
+	}
+#endif
+    }
+
+  /* XXX The size argument hopefully will have to be changed to the
+     real size of the user-level sigset_t.  */
+  result = INLINE_SYSCALL (rt_sigaction, 4, sig,
+			   act ? &kact : NULL,
+			   oact ? &koact : NULL, _NSIG / 8);
+
+  if (oact && result >= 0)
+    {
+      oact->sa_handler = koact.k_sa_handler;
+      memcpy (&oact->sa_mask, &koact.sa_mask, sizeof (sigset_t));
+      oact->sa_flags = koact.sa_flags;
+#ifdef HAVE_SA_RESTORER
+      oact->sa_restorer = koact.sa_restorer;
+#endif
+    }
+  return result;
+}
+libc_hidden_def (__libc_sigaction)
+
+#include <nptl/sigaction.c>