1 files changed, 18 insertions, 63 deletions
diff --git a/sysdeps/unix/sysv/linux/arm/sigaction.c b/sysdeps/unix/sysv/linux/arm/sigaction.c
index b84abed975..c828250815 100644
--- a/sysdeps/unix/sysv/linux/arm/sigaction.c
+++ b/sysdeps/unix/sysv/linux/arm/sigaction.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1997-2016 Free Software Foundation, Inc.
+/* Copyright (C) 1997-2018 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
@@ -15,70 +15,25 @@
    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>
+#define SET_SA_RESTORER(kact, act)				\
+ ({								\
+   if ((kact)->sa_flags & SA_RESTORER)				\
+     (kact)->sa_restorer = (act)->sa_restorer;			\
+   else								\
+     {								\
+       (kact)->sa_restorer = ((kact)->sa_flags & SA_SIGINFO)	\
+			     ? __default_rt_sa_restorer		\
+			     : __default_sa_restorer;		\
+       (kact)->sa_flags |= SA_RESTORER;				\
+     }								\
+ })
+
+#define RESET_SA_RESTORER(act, kact)				\
+  (act)->sa_restorer = (kact)->sa_restorer;
+
+#include <sysdeps/unix/sysv/linux/sigaction.c>