Initial checkin of GCC 4.9.0 from trunk (r208799).

Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba

1 files changed, 131 insertions, 0 deletions

diff --git a/gcc-4.9/libgfortran/intrinsics/link.c b/gcc-4.9/libgfortran/intrinsics/link.c
new file mode 100644
index 000000000..2018c628a
--- /dev/null
+++ b/gcc-4.9/libgfortran/intrinsics/link.c
@@ -0,0 +1,131 @@
+/* Implementation of the LINK intrinsic.
+   Copyright (C) 2005-2014 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"
+
+#include <errno.h>
+#include <string.h>
+
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+/* SUBROUTINE LINK(PATH1, PATH2, STATUS)
+   CHARACTER(len=*), INTENT(IN) :: PATH1, PATH2
+   INTEGER, INTENT(OUT), OPTIONAL :: STATUS  */
+
+#ifdef HAVE_LINK
+extern void link_i4_sub (char *, char *, GFC_INTEGER_4 *, gfc_charlen_type,
+	                 gfc_charlen_type);
+iexport_proto(link_i4_sub);
+
+void
+link_i4_sub (char *path1, char *path2, GFC_INTEGER_4 *status,
+             gfc_charlen_type path1_len, gfc_charlen_type path2_len)
+{
+  int val;
+  char *str1, *str2;
+
+  /* Trim trailing spaces from paths.  */
+  while (path1_len > 0 && path1[path1_len - 1] == ' ')
+    path1_len--;
+  while (path2_len > 0 && path2[path2_len - 1] == ' ')
+    path2_len--;
+
+  /* Make a null terminated copy of the strings.  */
+  str1 = gfc_alloca (path1_len + 1);
+  memcpy (str1, path1, path1_len);
+  str1[path1_len] = '\0';
+
+  str2 = gfc_alloca (path2_len + 1);
+  memcpy (str2, path2, path2_len);
+  str2[path2_len] = '\0';
+
+  val = link (str1, str2);
+
+  if (status != NULL)
+    *status = (val == 0) ? 0 : errno;
+}
+iexport(link_i4_sub);
+
+extern void link_i8_sub (char *, char *, GFC_INTEGER_8 *, gfc_charlen_type,
+	                 gfc_charlen_type);
+iexport_proto(link_i8_sub);
+
+void
+link_i8_sub (char *path1, char *path2, GFC_INTEGER_8 *status,
+             gfc_charlen_type path1_len, gfc_charlen_type path2_len)
+{
+  int val;
+  char *str1, *str2;
+
+  /* Trim trailing spaces from paths.  */
+  while (path1_len > 0 && path1[path1_len - 1] == ' ')
+    path1_len--;
+  while (path2_len > 0 && path2[path2_len - 1] == ' ')
+    path2_len--;
+
+  /* Make a null terminated copy of the strings.  */
+  str1 = gfc_alloca (path1_len + 1);
+  memcpy (str1, path1, path1_len);
+  str1[path1_len] = '\0';
+
+  str2 = gfc_alloca (path2_len + 1);
+  memcpy (str2, path2, path2_len);
+  str2[path2_len] = '\0';
+
+  val = link (str1, str2);
+
+  if (status != NULL)
+    *status = (val == 0) ? 0 : errno;
+}
+iexport(link_i8_sub);
+
+extern GFC_INTEGER_4 link_i4 (char *, char *, gfc_charlen_type,
+	                      gfc_charlen_type);
+export_proto(link_i4);
+
+GFC_INTEGER_4
+link_i4 (char *path1, char *path2, gfc_charlen_type path1_len,
+         gfc_charlen_type path2_len)
+{
+  GFC_INTEGER_4 val;
+  link_i4_sub (path1, path2, &val, path1_len, path2_len);
+  return val;
+}
+
+extern GFC_INTEGER_8 link_i8 (char *, char *, gfc_charlen_type,
+	                      gfc_charlen_type);
+export_proto(link_i8);
+
+GFC_INTEGER_8
+link_i8 (char *path1, char *path2, gfc_charlen_type path1_len,
+	 gfc_charlen_type path2_len)
+{
+  GFC_INTEGER_8 val;
+  link_i8_sub (path1, path2, &val, path1_len, path2_len);
+  return val;
+}
+#endif