2010-04-14 Tristan Gingold <gingold@adacore.com>

	* emulparams/alphavms.sh: New file.
	* emultempl/vms.em: New file.
	* scripttempl/alphavms.sc: New file.
	* configure.tgt (alpha*-*-*vms*): Added.
	* Makefile.am (ALL_EMULATIONS): Add ealphavms.o
	(ealphavms.c): New target.
	* Makefile.in: Regenerate.

1 files changed, 123 insertions, 0 deletions

diff --git a/ld/emultempl/vms.em b/ld/emultempl/vms.em
new file mode 100644
index 0000000..0b6b059
--- /dev/null
+++ b/ld/emultempl/vms.em
@@ -0,0 +1,123 @@
+# This shell script emits a C file. -*- C -*-
+#   Copyright 2010
+#   Free Software Foundation, Inc.
+#
+# This file is part of the GNU Binutils.
+#
+# This program 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.
+#
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
+# MA 02110-1301, USA.
+#
+
+# This file is sourced from generic.em.
+
+fragment <<EOF
+static void
+gld${EMULATION_NAME}_before_parse (void)
+{
+  ldfile_set_output_arch ("${ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
+  config.dynamic_link = TRUE;
+  config.has_shared = FALSE; /* Not yet.  */
+}
+
+/* This is called before the input files are opened.  We add the
+   standard library.  */
+
+static void
+gld${EMULATION_NAME}_create_output_section_statements (void)
+{
+  lang_add_input_file ("imagelib", lang_input_file_is_l_enum, NULL);
+  lang_add_input_file ("starlet", lang_input_file_is_l_enum, NULL);
+  lang_add_input_file ("sys\$public_vectors", lang_input_file_is_l_enum, NULL);
+}
+
+/* Try to open a dynamic archive.  This is where we know that VMS
+   shared images (dynamic libraries) have an extension of .exe.  */
+
+static bfd_boolean
+gld${EMULATION_NAME}_open_dynamic_archive (const char *arch ATTRIBUTE_UNUSED,
+                                           search_dirs_type *search,
+                                           lang_input_statement_type *entry)
+{
+  char *string;
+
+  if (! entry->is_archive)
+    return FALSE;
+
+  string = (char *) xmalloc (strlen (search->name)
+			     + strlen (entry->filename)
+			     + sizeof "/.exe");
+
+  sprintf (string, "%s/%s.exe", search->name, entry->filename);
+
+  if (! ldfile_try_open_bfd (string, entry))
+    {
+      free (string);
+      return FALSE;
+    }
+
+  entry->filename = string;
+
+  return TRUE;
+}
+
+static int
+gld${EMULATION_NAME}_find_potential_libraries
+  (char *name, lang_input_statement_type *entry)
+{
+  return ldfile_open_file_search (name, entry, "", ".olb");
+}
+
+/* Place an orphan section.  We use this to put random OVR sections.
+   Much borrowed from elf32.em.  */
+
+static lang_output_section_statement_type *
+vms_place_orphan (asection *s,
+		  const char *secname ATTRIBUTE_UNUSED,
+		  int constraint ATTRIBUTE_UNUSED)
+{
+  static struct orphan_save hold_data =
+    {
+      "\$DATA\$",
+      SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_DATA,
+      0, 0, 0, 0
+    };
+
+  /* We have nothing to say for anything other than a final link.  */
+  if (link_info.relocatable
+      || (s->flags & (SEC_EXCLUDE | SEC_LOAD)) != SEC_LOAD)
+    return NULL;
+
+  /* Only handle data sections.  */
+  if ((s->flags & SEC_DATA) == 0)
+    return NULL;
+
+  if (hold_data.os == NULL)
+    hold_data.os = lang_output_section_find (hold_data.name);
+
+  if (hold_data.os != NULL)
+    {
+      lang_add_section (&hold_data.os->children, s, hold_data.os);
+      return hold_data.os;
+    }
+  else
+    return NULL;
+}
+EOF
+
+LDEMUL_PLACE_ORPHAN=vms_place_orphan
+LDEMUL_BEFORE_PARSE=gld"$EMULATION_NAME"_before_parse
+LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS=gld"$EMULATION_NAME"_create_output_section_statements
+LDEMUL_FIND_POTENTIAL_LIBRARIES=gld"$EMULATION_NAME"_find_potential_libraries
+LDEMUL_OPEN_DYNAMIC_ARCHIVE=gld"$EMULATION_NAME"_open_dynamic_archive