329 lines
6.8 KiB
C
Executable File
329 lines
6.8 KiB
C
Executable File
/* Copyright (C) 1991 Free Software Foundation, Inc.
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This file is part of GLD, the Gnu Linker.
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GLD is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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GLD is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GLD; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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/*
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$Id$
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$Log$
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Revision 1.3 1991/04/08 23:21:26 steve
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*** empty log message ***
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* Revision 1.2 1991/03/22 23:02:31 steve
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* Brought up to sync with Intel again.
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*
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* Revision 1.2 1991/03/15 18:45:55 rich
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* foo
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*
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* Revision 1.1 1991/03/13 00:48:13 chrisb
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* Initial revision
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*
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* Revision 1.6 1991/03/10 09:31:20 rich
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* Modified Files:
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* Makefile config.h ld-emul.c ld-emul.h ld-gld.c ld-gld960.c
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* ld-lnk960.c ld.h lddigest.c ldexp.c ldexp.h ldfile.c ldfile.h
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* ldgram.y ldinfo.h ldlang.c ldlang.h ldlex.h ldlex.l ldmain.c
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* ldmain.h ldmisc.c ldmisc.h ldsym.c ldsym.h ldversion.c
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* ldversion.h ldwarn.h ldwrite.c ldwrite.h y.tab.h
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*
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* As of this round of changes, ld now builds on all hosts of (Intel960)
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* interest and copy passes my copy test on big endian hosts again.
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*
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* Revision 1.5 1991/03/09 03:23:47 sac
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* Now looks in G960BASE if I960BASE isn't defined.
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*
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* Revision 1.4 1991/03/06 02:23:35 sac
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* Added support for partial linking.
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*
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* Revision 1.3 1991/02/22 17:14:58 sac
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* Added RCS keywords and copyrights
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*
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*/
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/*
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Written by Steve Chamberlain steve@cygnus.com
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* intel coff loader emulation specific stuff
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*/
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#include "sysdep.h"
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#include "bfd.h"
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/*#include "archures.h"*/
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#include "ld.h"
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#include "config.h"
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#include "ld-emul.h"
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#include "ldmisc.h"
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#include "ldlang.h"
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#include "ldfile.h"
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extern boolean lang_float_flag;
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extern bfd *output_bfd;
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extern enum bfd_architecture ldfile_output_architecture;
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extern unsigned long ldfile_output_machine;
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extern char *ldfile_output_machine_name;
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typedef struct lib_list {
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char *name;
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struct lib_list *next;
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} lib_list_type;
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static lib_list_type *hll_list;
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static lib_list_type **hll_list_tail = &hll_list;
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static lib_list_type *syslib_list;
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static lib_list_type **syslib_list_tail = &syslib_list;
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static void
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append(list, name)
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lib_list_type ***list;
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char *name;
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{
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lib_list_type *element =
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(lib_list_type *)(ldmalloc(sizeof(lib_list_type)));
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element->name = name;
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element->next = (lib_list_type *)NULL;
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**list = element;
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*list = &element->next;
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}
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static boolean had_hll = false;
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static boolean had_hll_name = false;
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static void
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lnk960_hll(name)
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char *name;
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{
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had_hll = true;
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if (name != (char *)NULL) {
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had_hll_name = true;
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append(&hll_list_tail, name);
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}
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}
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static void
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lnk960_syslib(name)
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char *name;
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{
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append(&syslib_list_tail,name);
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}
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static void
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lnk960_before_parse()
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{
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char *name = getenv("I960BASE");
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if (name == (char *)NULL) {
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name = getenv("G960BASE");
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if (name == (char *)NULL) {
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info("%P%F I960BASE and G960BASE not set\n");
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}
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}
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ldfile_add_library_path(concat(name,"/lib",""));
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ldfile_output_architecture = bfd_arch_i960;
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ldfile_output_machine = bfd_mach_i960_core;
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}
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static void
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add_on(list, search)
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lib_list_type *list;
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lang_input_file_enum_type search;
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{
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while (list) {
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lang_add_input_file(list->name,
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search,
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(char *)NULL);
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list = list->next;
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}
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}
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static void lnk960_after_parse()
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{
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/* If there has been no arch, default to -KB */
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if (ldfile_output_machine_name[0] ==0) {
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ldfile_add_arch("kb");
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}
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/* if there has been no hll list then add our own */
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if(had_hll && !had_hll_name) {
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append(&hll_list_tail,"c");
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if (lang_float_flag == true) {
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append(&hll_list_tail,"m");
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}
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else {
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append(&hll_list_tail,"mstub");
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}
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if (ldfile_output_machine == bfd_mach_i960_ka_sa ||
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ldfile_output_machine == bfd_mach_i960_ca) {
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{
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append(&hll_list_tail,"f");
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}
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}
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}
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add_on(hll_list, lang_input_file_is_l_enum);
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add_on(syslib_list, lang_input_file_is_search_file_enum);
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}
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static void
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lnk960_before_allocation()
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{
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}
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static void
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lnk960_after_allocation()
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{
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extern ld_config_type config;
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if (config.relocateable_output == false) {
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lang_abs_symbol_at_end_of(".text","_etext");
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lang_abs_symbol_at_end_of(".data","_edata");
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lang_abs_symbol_at_beginning_of(".bss","_bss_start");
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lang_abs_symbol_at_end_of(".bss","_end");
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}
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}
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static struct
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{
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unsigned long number;
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char *name;
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}
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machine_table[] = {
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bfd_mach_i960_core ,"CORE",
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bfd_mach_i960_kb_sb ,"KB",
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bfd_mach_i960_kb_sb ,"SB",
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bfd_mach_i960_mc ,"MC",
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bfd_mach_i960_xa ,"XA",
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bfd_mach_i960_ca ,"CA",
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bfd_mach_i960_ka_sa ,"KA",
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bfd_mach_i960_ka_sa ,"SA",
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bfd_mach_i960_core ,"core",
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bfd_mach_i960_kb_sb ,"kb",
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bfd_mach_i960_kb_sb ,"sb",
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bfd_mach_i960_mc ,"mc",
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bfd_mach_i960_xa ,"xa",
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bfd_mach_i960_ca ,"ca",
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bfd_mach_i960_ka_sa ,"ka",
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bfd_mach_i960_ka_sa ,"sa",
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0,(char *)NULL
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};
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static void
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lnk960_set_output_arch()
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{
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/* Set the output architecture and machine if possible */
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unsigned int i;
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ldfile_output_machine = bfd_mach_i960_core;
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for (i= 0; machine_table[i].name != (char*)NULL; i++) {
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if (strcmp(ldfile_output_machine_name,machine_table[i].name)==0) {
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ldfile_output_machine = machine_table[i].number;
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break;
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}
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}
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bfd_set_arch_mach(output_bfd, ldfile_output_architecture, ldfile_output_machine);
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}
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static char *
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lnk960_choose_target()
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{
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char *from_outside = getenv(TARGET_ENVIRON);
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if (from_outside != (char *)NULL)
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return from_outside;
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return LNK960_TARGET;
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}
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/* The default script if none is offered */
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static char *lnk960_script = "\
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SECTIONS \
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{ \
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.text : \
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{ \
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*(.text) \
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} \
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_etext = .;\
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.data SIZEOF(.text) + ADDR(.text):\
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{ \
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*(.data) \
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} \
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_edata = .; \
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.bss SIZEOF(.data) + ADDR(.data) : \
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{ \
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_bss_start = . ;\
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*(.bss) \
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[COMMON] \
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} \
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_end = . ; \
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} \
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";
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static char *lnk960_script_relocateable = "\
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SECTIONS \
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{ \
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.text 0x40000000: \
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{ \
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*(.text) \
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} \
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.data 0:\
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{ \
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*(.data) \
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} \
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.bss SIZEOF(.data) + ADDR(.data) : \
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{ \
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*(.bss) \
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[COMMON] \
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} \
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} \
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";
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static char *lnk960_get_script()
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{
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extern ld_config_type config;
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if (config.relocateable_output) {
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return lnk960_script_relocateable;
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}
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return lnk960_script;
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}
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struct ld_emulation_xfer_struct ld_lnk960_emulation =
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{
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lnk960_before_parse,
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lnk960_syslib,
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lnk960_hll,
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lnk960_after_parse,
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lnk960_after_allocation,
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lnk960_set_output_arch,
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lnk960_choose_target,
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lnk960_before_allocation,
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lnk960_get_script,
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};
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