* Makefile.am: Added new files.

        * Makefile.in: Regenerate.
        * aclocal.m4: Regenerate.
        * configure.ac: add checks for signal.h headers file, as well as
        following functions: chdir, strerror, getlogin, gethostname, kill,
        link, symlink, perror, sleep, time.
        * configure: Regenerate.
        * intrinsics/chdir.c, intrinsics/gerror.c, intrinsics/getlog.c,
        intrinsics/hostnm.c, intrinsics/ierrno.c, intrinsics/kill.c,
        intrinsics/link.c, intrinsics/perror.c, intrinsics/rename.c,
        intrinsics/sleep.c, intrinsics/symlnk.c, intrinsics/time.c: Newly
        implementend g77 intrinsics.

        * check.c (gfc_check_chdir, gfc_check_chdir_sub, gfc_check_kill,
        gfc_check_kill_sub, gfc_check_link, gfc_check_link_sub,
        gfc_check_symlnk, gfc_check_symlnk_sub, gfc_check_rename,
        gfc_check_rename_sub, gfc_check_sleep_sub, gfc_check_gerror,
        gfc_check_getlog, gfc_check_hostnm, gfc_check_hostnm_sub,
        gfc_check_perror): new functions to check newly implemented
        g77 intrinsics.
        * gfortran.h: adding symbols for new intrinsics.
        * intrinsic.c (add_functions): adding new intrinsics.
        (add_subroutines): adding new intrinsics.
        * intrinsic.h: prototype for all checking and resolving
        functions.
        * iresolve.c (gfc_resolve_chdir, gfc_resolve_chdir_sub,
        gfc_resolve_hostnm, gfc_resolve_ierrno, gfc_resolve_kill,
        gfc_resolve_link, gfc_resolve_rename, gfc_resolve_symlnk,
        gfc_resolve_time, gfc_resolve_time8, gfc_resolve_rename_sub,
        gfc_resolve_kill_sub, gfc_resolve_link_sub,
        gfc_resolve_symlnk_sub, gfc_resolve_sleep_sub,
        gfc_resolve_gerror, gfc_resolve_getlog, gfc_resolve_hostnm_sub,
        gfc_resolve_perror): new functions to resolve intrinsics.
        * trans-intrinsic.c (gfc_conv_intrinsic_function): add case
        for new symbols.

        * g77_intrinsics_funcs.f: New test.
        * g77_intrinsics_sub.f: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@96893 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 138 insertions, 0 deletions

diff --git a/libgfortran/intrinsics/link.c b/libgfortran/intrinsics/link.c
new file mode 100644
index 00000000000..33cf816b66e
--- /dev/null
+++ b/libgfortran/intrinsics/link.c
@@ -0,0 +1,138 @@
+/* Implementation of the LINK intrinsic.
+   Copyright (C) 2005 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 2 of the License, or (at your option) any later version.
+
+In addition to the permissions in the GNU General Public License, the
+Free Software Foundation gives you unlimited permission to link the
+compiled version of this file into combinations with other programs,
+and to distribute those combinations without any restriction coming
+from the use of this file.  (The General Public License restrictions
+do apply in other respects; for example, they cover modification of
+the file, and distribution when not linked into a combine
+executable.)
+
+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.
+
+You should have received a copy of the GNU General Public
+License along with libgfortran; see the file COPYING.  If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include "config.h"
+#include "libgfortran.h"
+
+#include <errno.h>
+
+#include "../io/io.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