obtained gcc-4.6.4.tar.bz2 from upstream website;upstream

verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.

1 files changed, 243 insertions, 0 deletions

diff --git a/libgfortran/intrinsics/signal.c b/libgfortran/intrinsics/signal.c
new file mode 100644
index 000000000..66e54f33a
--- /dev/null
+++ b/libgfortran/intrinsics/signal.c
@@ -0,0 +1,243 @@
+/* Implementation of the SIGNAL and ALARM g77 intrinsics
+   Copyright (C) 2005, 2007, 2009 Free Software Foundation, Inc.
+   Contributed by François-Xavier Coudert <coudert@clipper.ens.fr>
+
+This file is part of the GNU Fortran 95 runtime library (libgfortran).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU General Public
+License as published by the Free Software Foundation; either
+version 3 of the License, or (at your option) any later version.
+
+Libgfortran 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 General Public License for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+#include "libgfortran.h"
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#ifdef HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+
+#ifdef HAVE_INTTYPES_H
+#include <inttypes.h>
+#endif
+
+#include <errno.h>
+
+/* SIGNAL subroutine with PROCEDURE as handler  */
+extern void signal_sub (int *, void (*)(int), int *);
+iexport_proto(signal_sub);
+
+void
+signal_sub (int *number, void (*handler)(int), int *status)
+{
+#ifdef HAVE_SIGNAL
+  intptr_t ret;
+
+  if (status != NULL)
+    {
+      ret = (intptr_t) signal (*number, handler);
+      *status = (int) ret;
+    }
+  else
+    signal (*number, handler);
+#else
+  errno = ENOSYS;
+  if (status != NULL)
+    *status = -1;
+#endif
+}
+iexport(signal_sub);
+
+
+/* SIGNAL subroutine with INTEGER as handler  */
+extern void signal_sub_int (int *, int *, int *);
+iexport_proto(signal_sub_int);
+
+void
+signal_sub_int (int *number, int *handler, int *status)
+{
+#ifdef HAVE_SIGNAL
+  intptr_t ptr = *handler, ret;
+
+  if (status != NULL)
+    {
+      ret = (intptr_t) signal (*number, (void (*)(int)) ptr);
+      *status = (int) ret;
+    }
+  else
+    signal (*number, (void (*)(int)) ptr);
+#else
+  errno = ENOSYS;
+  if (status != NULL)
+    *status = -1;
+#endif
+}
+iexport(signal_sub_int);
+
+
+/* SIGNAL function with PROCEDURE as handler  */
+extern int signal_func (int *, void (*)(int));
+iexport_proto(signal_func);
+
+int
+signal_func (int *number, void (*handler)(int))
+{
+  int status;
+  signal_sub (number, handler, &status);
+  return status;
+}
+iexport(signal_func);
+
+
+/* SIGNAL function with INTEGER as handler  */
+extern int signal_func_int (int *, int *);
+iexport_proto(signal_func_int);
+
+int
+signal_func_int (int *number, int *handler)
+{
+  int status;
+  signal_sub_int (number, handler, &status);
+  return status;
+}
+iexport(signal_func_int);
+
+
+
+/* ALARM intrinsic with PROCEDURE as handler  */
+extern void alarm_sub_i4 (int *, void (*)(int), GFC_INTEGER_4 *);
+iexport_proto(alarm_sub_i4);
+
+void
+alarm_sub_i4 (int * seconds __attribute__ ((unused)),
+	      void (*handler)(int) __attribute__ ((unused)),
+	      GFC_INTEGER_4 *status)
+{
+#if defined (SIGALRM) && defined (HAVE_ALARM) && defined (HAVE_SIGNAL)
+  if (status != NULL)
+    {
+      if (signal (SIGALRM, handler) == SIG_ERR)
+	*status = -1;
+      else
+	*status = alarm (*seconds);
+    }
+  else
+    {
+      signal (SIGALRM, handler);
+      alarm (*seconds);
+    }
+#else
+  errno = ENOSYS;
+  if (status != NULL)
+    *status = -1;
+#endif
+}
+iexport(alarm_sub_i4);
+
+
+extern void alarm_sub_i8 (int *, void (*)(int), GFC_INTEGER_8 *);
+iexport_proto(alarm_sub_i8);
+
+void
+alarm_sub_i8 (int *seconds __attribute__ ((unused)),
+	      void (*handler)(int) __attribute__ ((unused)),
+	      GFC_INTEGER_8 *status)
+{
+#if defined (SIGALRM) && defined (HAVE_ALARM) && defined (HAVE_SIGNAL)
+  if (status != NULL)
+    {
+      if (signal (SIGALRM, handler) == SIG_ERR)
+	*status = -1;
+      else
+	*status = alarm (*seconds);
+    }
+  else
+    {
+      signal (SIGALRM, handler);
+      alarm (*seconds);
+    }
+#else
+  errno = ENOSYS;
+  if (status != NULL)
+    *status = -1;
+#endif
+}
+iexport(alarm_sub_i8);
+
+
+/* ALARM intrinsic with INTEGER as handler  */
+extern void alarm_sub_int_i4 (int *, int *, GFC_INTEGER_4 *);
+iexport_proto(alarm_sub_int_i4);
+
+void
+alarm_sub_int_i4 (int *seconds __attribute__ ((unused)),
+		  int *handler __attribute__ ((unused)),
+		  GFC_INTEGER_4 *status)
+{
+#if defined (SIGALRM) && defined (HAVE_ALARM) && defined (HAVE_SIGNAL)
+  if (status != NULL)
+    {
+      if (signal (SIGALRM, (void (*)(int)) (intptr_t) *handler) == SIG_ERR)
+	*status = -1;
+      else
+	*status = alarm (*seconds);
+    }
+  else
+    {
+      signal (SIGALRM, (void (*)(int)) (intptr_t) *handler);
+      alarm (*seconds);
+    }
+#else
+  errno = ENOSYS;
+  if (status != NULL)
+    *status = -1;
+#endif
+}
+iexport(alarm_sub_int_i4);
+
+
+extern void alarm_sub_int_i8 (int *, int *, GFC_INTEGER_8 *);
+iexport_proto(alarm_sub_int_i8);
+
+void
+alarm_sub_int_i8 (int *seconds __attribute__ ((unused)),
+		  int *handler __attribute__ ((unused)),
+		  GFC_INTEGER_8 *status)
+{
+#if defined (SIGALRM) && defined (HAVE_ALARM) && defined (HAVE_SIGNAL)
+  if (status != NULL)
+    {
+      if (signal (SIGALRM, (void (*)(int)) (intptr_t) *handler) == SIG_ERR)
+	*status = -1;
+      else
+	*status = alarm (*seconds);
+    }
+  else
+    {
+      signal (SIGALRM, (void (*)(int)) (intptr_t) *handler);
+      alarm (*seconds);
+    }
+#else
+  errno = ENOSYS;
+  if (status != NULL)
+    *status = -1;
+#endif
+}
+iexport(alarm_sub_int_i8);
+