old-cross-binutils/ld/ld-lnk960.c
1991-03-22 23:02:38 +00:00

322 lines
6.7 KiB
C
Executable file

/* 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. */
/*
$Id$
$Log$
Revision 1.2 1991/03/22 23:02:31 steve
Brought up to sync with Intel again.
* Revision 1.2 1991/03/15 18:45:55 rich
* foo
*
* Revision 1.1 1991/03/13 00:48:13 chrisb
* Initial revision
*
* Revision 1.6 1991/03/10 09:31:20 rich
* Modified Files:
* Makefile config.h ld-emul.c ld-emul.h ld-gld.c ld-gld960.c
* ld-lnk960.c ld.h lddigest.c ldexp.c ldexp.h ldfile.c ldfile.h
* ldgram.y ldinfo.h ldlang.c ldlang.h ldlex.h ldlex.l ldmain.c
* ldmain.h ldmisc.c ldmisc.h ldsym.c ldsym.h ldversion.c
* ldversion.h ldwarn.h ldwrite.c ldwrite.h y.tab.h
*
* As of this round of changes, ld now builds on all hosts of (Intel960)
* interest and copy passes my copy test on big endian hosts again.
*
* Revision 1.5 1991/03/09 03:23:47 sac
* Now looks in G960BASE if I960BASE isn't defined.
*
* Revision 1.4 1991/03/06 02:23:35 sac
* Added support for partial linking.
*
* Revision 1.3 1991/02/22 17:14:58 sac
* Added RCS keywords and copyrights
*
*/
/*
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 "ld-emul.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);
}
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;
}
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,"c");
if (lang_float_flag == true) {
append(&hll_list_tail,"m");
}
else {
append(&hll_list_tail,"mstub");
}
if (ldfile_output_machine == bfd_mach_i960_ka_sa ||
ldfile_output_machine == bfd_mach_i960_ca) {
{
append(&hll_list_tail,"f");
}
}
}
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()
{
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()
{
char *from_outside = getenv(TARGET_ENVIRON);
if (from_outside != (char *)NULL)
return from_outside;
return LNK960_TARGET;
}
/* The default script if none is offered */
static char *lnk960_script = "\
SECTIONS \
{ \
.text : \
{ \
*(.text) \
} \
_etext = .;\
.data SIZEOF(.text) + ADDR(.text):\
{ \
*(.data) \
} \
_edata = .; \
.bss SIZEOF(.data) + ADDR(.data) : \
{ \
_bss_start = . ;\
*(.bss) \
[COMMON] \
} \
_end = . ; \
} \
";
static char *lnk960_script_relocateable = "\
SECTIONS \
{ \
.text 0x40000000: \
{ \
*(.text) \
} \
.data 0:\
{ \
*(.data) \
} \
.bss SIZEOF(.data) + ADDR(.data) : \
{ \
*(.bss) \
[COMMON] \
} \
} \
";
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,
};