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-rwxr-xr-xld/ldlnk960.c288
1 files changed, 288 insertions, 0 deletions
diff --git a/ld/ldlnk960.c b/ld/ldlnk960.c
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+/* 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. */
+
+/*
+ $Id$
+*/
+
+/*
+
+ Written by Steve Chamberlain steve@cygnus.com
+
+ * intel coff loader emulation specific stuff
+ */
+
+#include "sysdep.h"
+#include "bfd.h"
+
+/*#include "archures.h"*/
+#include "ld.h"
+#include "config.h"
+#include "ldemul.h"
+#include "ldmisc.h"
+#include "ldlang.h"
+#include "ldfile.h"
+
+extern boolean lang_float_flag;
+extern bfd *output_bfd;
+
+
+
+extern enum bfd_architecture ldfile_output_architecture;
+extern unsigned long ldfile_output_machine;
+extern char *ldfile_output_machine_name;
+
+
+typedef struct lib_list {
+ char *name;
+ struct lib_list *next;
+} lib_list_type;
+
+static lib_list_type *hll_list;
+static lib_list_type **hll_list_tail = &hll_list;
+
+static lib_list_type *syslib_list;
+static lib_list_type **syslib_list_tail = &syslib_list;
+
+
+static void
+append(list, name)
+lib_list_type ***list;
+char *name;
+{
+ lib_list_type *element =
+ (lib_list_type *)(ldmalloc(sizeof(lib_list_type)));
+
+ element->name = name;
+ element->next = (lib_list_type *)NULL;
+ **list = element;
+ *list = &element->next;
+
+}
+
+static boolean had_hll = false;
+static boolean had_hll_name = false;
+static void
+lnk960_hll(name)
+char *name;
+{
+ had_hll = true;
+ if (name != (char *)NULL) {
+ had_hll_name = true;
+ append(&hll_list_tail, name);
+ }
+}
+
+static void
+lnk960_syslib(name)
+char *name;
+{
+ append(&syslib_list_tail,name);
+}
+
+
+
+#ifdef GNU960
+
+static void
+lnk960_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/libcoff",""));
+ }
+ }
+
+ env= (char *) getenv("I960BASE");
+ if ( env ) {
+ ldfile_add_library_path(concat(env,"/lib",""));
+ }
+
+ ldfile_output_architecture = bfd_arch_i960;
+ ldfile_output_machine = bfd_mach_i960_core;
+}
+
+#else /* not GNU960 */
+
+static void
+lnk960_before_parse()
+{
+ char *name = getenv("I960BASE");
+
+ if (name == (char *)NULL) {
+ name = getenv("G960BASE");
+ if (name == (char *)NULL) {
+ info("%P%F I960BASE and G960BASE not set\n");
+ }
+ }
+
+
+ ldfile_add_library_path(concat(name,"/lib",""));
+ ldfile_output_architecture = bfd_arch_i960;
+ ldfile_output_machine = bfd_mach_i960_core;
+}
+
+#endif /* GNU960 */
+
+
+static void
+add_on(list, search)
+lib_list_type *list;
+lang_input_file_enum_type search;
+{
+ while (list) {
+ lang_add_input_file(list->name,
+ search,
+ (char *)NULL);
+ list = list->next;
+ }
+}
+static void lnk960_after_parse()
+{
+
+ /* If there has been no arch, default to -KB */
+ if (ldfile_output_machine_name[0] ==0) {
+ ldfile_add_arch("KB");
+ }
+
+ /* if there has been no hll list then add our own */
+
+ if(had_hll && !had_hll_name) {
+ append(&hll_list_tail,"cg");
+ if (ldfile_output_machine == bfd_mach_i960_ka_sa ||
+ ldfile_output_machine == bfd_mach_i960_ca) {
+ {
+ append(&hll_list_tail,"fpg");
+ }
+ }
+ }
+
+ add_on(hll_list, lang_input_file_is_l_enum);
+ add_on(syslib_list, lang_input_file_is_search_file_enum);
+}
+
+static void
+lnk960_before_allocation()
+{
+}
+static void
+lnk960_after_allocation()
+{
+ extern ld_config_type config;
+ if (config.relocateable_output == false) {
+ lang_abs_symbol_at_end_of(".text","_etext");
+ lang_abs_symbol_at_end_of(".data","_edata");
+ lang_abs_symbol_at_beginning_of(".bss","_bss_start");
+ lang_abs_symbol_at_end_of(".bss","_end");
+ }
+}
+
+
+static struct
+ {
+ unsigned long number;
+ char *name;
+ }
+machine_table[] = {
+ bfd_mach_i960_core ,"CORE",
+ bfd_mach_i960_kb_sb ,"KB",
+ bfd_mach_i960_kb_sb ,"SB",
+ bfd_mach_i960_mc ,"MC",
+ bfd_mach_i960_xa ,"XA",
+ bfd_mach_i960_ca ,"CA",
+ bfd_mach_i960_ka_sa ,"KA",
+ bfd_mach_i960_ka_sa ,"SA",
+
+ bfd_mach_i960_core ,"core",
+ bfd_mach_i960_kb_sb ,"kb",
+ bfd_mach_i960_kb_sb ,"sb",
+ bfd_mach_i960_mc ,"mc",
+ bfd_mach_i960_xa ,"xa",
+ bfd_mach_i960_ca ,"ca",
+ bfd_mach_i960_ka_sa ,"ka",
+ bfd_mach_i960_ka_sa ,"sa",
+ 0,(char *)NULL
+};
+
+static void
+lnk960_set_output_arch()
+{
+ /* Set the output architecture and machine if possible */
+ unsigned int i;
+ ldfile_output_machine = bfd_mach_i960_core;
+ for (i= 0; machine_table[i].name != (char*)NULL; i++) {
+ if (strcmp(ldfile_output_machine_name,machine_table[i].name)==0) {
+ ldfile_output_machine = machine_table[i].number;
+ break;
+ }
+ }
+ bfd_set_arch_mach(output_bfd, ldfile_output_architecture, ldfile_output_machine);
+}
+
+static char *
+lnk960_choose_target()
+{
+#ifdef GNU960
+
+ return bfd_make_targ_name(BFD_COFF_FORMAT,HOST_BYTE_ORDER_BIG_P);
+
+#else
+
+ char *from_outside = getenv(TARGET_ENVIRON);
+ if (from_outside != (char *)NULL)
+ return from_outside;
+ return LNK960_TARGET;
+
+#endif
+}
+
+/* The default script if none is offered */
+static char *lnk960_script =
+#include "ldlnk960.x"
+;
+
+
+static char *lnk960_script_relocateable =
+#include "ldlnk960r.x"
+;
+
+static char *lnk960_get_script()
+{
+ extern ld_config_type config;
+ if (config.relocateable_output) {
+ return lnk960_script_relocateable;
+ }
+ return lnk960_script;
+}
+struct ld_emulation_xfer_struct ld_lnk960_emulation =
+{
+ lnk960_before_parse,
+ lnk960_syslib,
+ lnk960_hll,
+ lnk960_after_parse,
+ lnk960_after_allocation,
+ lnk960_set_output_arch,
+ lnk960_choose_target,
+ lnk960_before_allocation,
+ lnk960_get_script,
+};