Add support for Score target.

ld/emultempl/scoreelf.em

@@ -0,0 +1,74 @@
+# This shell script emits a C file. -*- C -*-
+#   Copyright 2006 Free Software Foundation, Inc.
+#   Contributed by: 
+#   Mei Ligang (ligang@sunnorth.com.cn)
+#   Pei-Lin Tsai (pltsai@sunplus.com)
+
+# This file is part of GLD, the Gnu Linker.
+#
+# 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 2 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 elf32.em, and defines extra score-elf
+# specific routines.
+#
+cat >>e${EMULATION_NAME}.c <<EOF
+
+static void
+gld${EMULATION_NAME}_before_parse ()
+{
+#ifndef TARGET_			/* I.e., if not generic.  */
+  ldfile_set_output_arch ("`echo ${ARCH}`");
+#endif /* not TARGET_ */
+  config.dynamic_link = ${DYNAMIC_LINK-true};
+  config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`;
+}
+
+static void
+score_elf_after_open (void)
+{
+  if (strstr (bfd_get_target (output_bfd), "score") == NULL)
+    {
+      /* The score backend needs special fields in the output hash structure.
+	 These will only be created if the output format is an score format,
+	 hence we do not support linking and changing output formats at the
+	 same time.  Use a link followed by objcopy to change output formats.  */
+      einfo ("%F%X%P: error: cannot change output format whilst linking S+core binaries\n");
+      return;
+    }
+
+  /* Call the standard elf routine.  */
+  gld${EMULATION_NAME}_after_open ();
+}
+
+EOF
+
+# Define some shell vars to insert bits of code into the standard elf
+# parse_args and list_options functions.
+#
+PARSE_AND_LIST_PROLOGUE=''
+PARSE_AND_LIST_SHORTOPTS=
+PARSE_AND_LIST_LONGOPTS=''
+PARSE_AND_LIST_OPTIONS=''
+PARSE_AND_LIST_ARGS_CASES=''
+
+# We have our own after_open and before_allocation functions, but they call
+# the standard routines, so give them a different name.
+LDEMUL_AFTER_OPEN=score_elf_after_open
+
+# Replace the elf before_parse function with our own.
+LDEMUL_BEFORE_PARSE=gld"${EMULATION_NAME}"_before_parse
+