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authorSteve Chamberlain <steve@cygnus>1991-11-04 00:46:42 +0000
committerSteve Chamberlain <steve@cygnus>1991-11-04 00:46:42 +0000
commit82e643ecc4106771d516bb20583b58e2c775f19a (patch)
tree25f7659f37d0ee7a56ec93181d0426e5f2ee744f
parentce4d59e25dc00e53c8b306df1302505387667122 (diff)
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Initial revision
-rwxr-xr-xld/i386aout.c159
-rwxr-xr-xld/i386aout.sc25
2 files changed, 184 insertions, 0 deletions
diff --git a/ld/i386aout.c b/ld/i386aout.c
new file mode 100755
index 0000000..7bd06c5
--- /dev/null
+++ b/ld/i386aout.c
@@ -0,0 +1,159 @@
+/* NOTE: If there are angle brackets here: I386AOUT then this is a
+ * template file (ldtemplate), intended for processing by sed.
+ * Otherwise, this file has already been processed by sed,
+ * and customized for a particular emulation target.
+ * In that DO NOT EDIT the file; edit ldtemplate instead.
+ */
+
+/* emulate the original gld for the given I386AOUT
+ Copyright (C) 1991 Free Software Foundation, Inc.
+ Written by Steve Chamberlain steve@cygnus.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., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/*
+ * $Id:#
+ */
+
+#define TARGET_IS_I386AOUT
+
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "ld.h"
+#include "config.h"
+#include "ldemul.h"
+#include "ldfile.h"
+#include "ldmisc.h"
+
+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;
+
+
+
+static void gldi386aout_before_parse()
+{
+#ifdef TARGET_IS_M88KBCS
+ extern char lprefix;
+ lprefix = '@';
+#else
+#ifndef TARGET_ /* I.e., if not generic */
+ ldfile_output_architecture = bfd_arch_i386;
+#endif
+#endif
+}
+
+
+static void
+gldi386aout_after_parse()
+{
+
+}
+
+static void
+gldi386aout_after_allocation()
+{
+
+}
+
+static void
+gldi386aout_before_allocation()
+{
+
+}
+
+
+static void
+gldi386aout_set_output_arch()
+{
+ /* Set the output architecture and machine if possible */
+ bfd_set_arch_mach(output_bfd,
+ ldfile_output_architecture, ldfile_output_machine);
+}
+
+static char *
+gldi386aout_choose_target()
+{
+ char *from_outside = getenv(TARGET_ENVIRON);
+ if (from_outside != (char *)NULL)
+ return from_outside;
+ return GLDI386AOUT_TARGET;
+}
+
+static void
+gldi386aout_syslib()
+{
+ info("%S SYSLIB ignored\n");
+}
+
+static void
+gldi386aout_hll(ignore)
+char *ignore;
+{
+ info("%S HLL ignored\n");
+}
+
+static char *gldi386aout_script =
+#include "i386aout.x"
+;
+static char *gldi386aout_script_option_Ur =
+#include "i386aout.xu"
+;
+static char *gldi386aout_script_option_r =
+#include "i386aout.xr"
+;
+static char *gldi386aout_script_option_n = /* Used with -n flag. */
+#include "i386aout.xn"
+;
+static char *gldi386aout_script_option_N = /* Used with -N flag. */
+#include "i386aout.xN"
+;
+
+static char *gldi386aout_get_script()
+{
+ extern ld_config_type config;
+ if (config.relocateable_output == true &&
+ config.build_constructors == true) {
+ return gldi386aout_script_option_Ur;
+ }
+ if (config.relocateable_output == true) {
+ return gldi386aout_script_option_r;
+ }
+ if (!config.text_read_only)
+ return gldi386aout_script_option_N;
+ if (!config.magic_demand_paged)
+ return gldi386aout_script_option_n;
+ return gldi386aout_script;
+}
+struct ld_emulation_xfer_struct ld_gldi386aout_emulation =
+{
+ gldi386aout_before_parse,
+ gldi386aout_syslib,
+ gldi386aout_hll,
+ gldi386aout_after_parse,
+ gldi386aout_after_allocation,
+ gldi386aout_set_output_arch,
+ gldi386aout_choose_target,
+ gldi386aout_before_allocation,
+ gldi386aout_get_script,
+};
diff --git a/ld/i386aout.sc b/ld/i386aout.sc
new file mode 100755
index 0000000..82133cc
--- /dev/null
+++ b/ld/i386aout.sc
@@ -0,0 +1,25 @@
+OUTPUT_FORMAT("a.out-i386")
+OUTPUT_ARCH(i386)
+
+__DYNAMIC = 0;
+SECTIONS
+{
+ .text 0 BLOCK(0x1000) :
+ {
+ CREATE_OBJECT_SYMBOLS
+ *(.text)
+ _etext = ALIGN(0x1000);
+ }
+ .data ALIGN(0x1000) :
+ {
+ *(.data)
+ CONSTRUCTORS
+ _edata = .;
+ }
+ .bss SIZEOF(.data) + ADDR(.data) :
+ {
+ *(.bss)
+ [COMMON]
+ _end = .;
+ }
+}