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authorPer Bothner <per@bothner.com>1992-02-15 22:07:15 +0000
committerPer Bothner <per@bothner.com>1992-02-15 22:07:15 +0000
commit6ecb2b74ee6a45adfba96efff8807448f070b754 (patch)
tree03413fd8e49d3a73f717d17d0ef167f8cba9f212 /ld/gld960.em
parent3340f7e5fdd11b6c544714500fca870707793fd0 (diff)
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Major rewrite of how ld is configured. The major idea
is to use shell scripts to generate everything. * generic.em replaces ldtemplate. * Other *.em files replace various *.c files. A *.em file is a shell script that generates the corresponding ld__*.c file that implements an emulation. This is usually a straight 'cat' of a here-document, possibly with substitutions. * Script files (*.sc) are places by *.sc-sh scripts. Again, these are simple shell scripts that 'cat' here-documents, usually with some substitutions. The output a *.sc-sh is a script file.
Diffstat (limited to 'ld/gld960.em')
-rw-r--r--ld/gld960.em137
1 files changed, 137 insertions, 0 deletions
diff --git a/ld/gld960.em b/ld/gld960.em
new file mode 100644
index 0000000..c2eba62
--- /dev/null
+++ b/ld/gld960.em
@@ -0,0 +1,137 @@
+cat >ld__${EMULATION_NAME}.c <<EOF
+/* Copyright (C) 1991 Free Software Foundation, Inc.
+
+This file is part of GLD, the Gnu Linker.
+
+GLD 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 1, or (at your option)
+any later version.
+
+GLD 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 GLD; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ * emulate the Intels port of gld
+ */
+
+
+#include "bfd.h"
+#include "sysdep.h"
+
+
+#include "ld.h"
+#include "config.h"
+#include "ldemul.h"
+#include "ldfile.h"
+#include "ldmisc.h"
+
+
+/* IMPORTS */
+extern char *output_filename;
+extern boolean lang_float_flag;
+
+
+extern enum bfd_architecture ldfile_output_architecture;
+extern unsigned long ldfile_output_machine;
+extern char *ldfile_output_machine_name;
+
+extern bfd *output_bfd;
+
+
+
+#ifdef GNU960
+
+static void
+gld960_before_parse()
+{
+ static char *env_variables[] = { "G960LIB", "G960BASE", 0 };
+ char **p;
+ char *env ;
+
+ for ( p = env_variables; *p; p++ ){
+ env = (char *) getenv(*p);
+ if (env) {
+ ldfile_add_library_path(concat(env,"/lib/libbout",""));
+ }
+ }
+ ldfile_output_architecture = bfd_arch_i960;
+}
+
+#else /* not GNU960 */
+
+static void gld960_before_parse()
+{
+ char *env ;
+ env = getenv("G960LIB");
+ if (env) {
+ ldfile_add_library_path(env);
+ }
+ env = getenv("G960BASE");
+ if (env) {
+ ldfile_add_library_path(concat(env,"/lib",""));
+ }
+ ldfile_output_architecture = bfd_arch_i960;
+}
+
+#endif /* GNU960 */
+
+
+static void
+gld960_set_output_arch()
+{
+ bfd_set_arch_mach(output_bfd, ldfile_output_architecture, bfd_mach_i960_core);
+}
+
+static char *
+gld960_choose_target()
+{
+#ifdef GNU960
+
+ output_filename = "b.out";
+ return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
+
+#else
+
+ char *from_outside = getenv(TARGET_ENVIRON);
+ output_filename = "b.out";
+
+ if (from_outside != (char *)NULL)
+ return from_outside;
+ return "b.out.big";
+
+#endif
+}
+
+static char *script =
+#include "gld960.x"
+;
+
+
+static char *
+gld960_get_script()
+{
+return script;
+}
+
+struct ld_emulation_xfer_struct ld_gld960_emulation =
+{
+ gld960_before_parse,
+ syslib_default,
+ hll_default,
+ after_parse_default,
+ after_allocation_default,
+ gld960_set_output_arch,
+ gld960_choose_target,
+ before_allocation_default,
+ gld960_get_script,
+ "lnk960",
+ ""
+};
+EOF