binutils-gdb/ld/ld-gld960.c

190 lines
3.6 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 23:02:30 steve
Brought up to sync with Intel again.
* Revision 1.3 1991/03/16 22:27:24 rich
* fish
*
* Revision 1.2 1991/03/15 18:45:55 rich
* foo
*
* Revision 1.1 1991/03/13 00:48:12 chrisb
* Initial revision
*
* Revision 1.4 1991/03/10 09:31:19 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 1.3 1991/02/22 17:14:57 sac
* Added RCS keywords and copyrights
*
*/
/*
* emulate the Intels port of gld
*/
#include "sysdep.h"
#include "bfd.h"
#include "ld.h"
#include "config.h"
#include "ld-emul.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;
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;
}
static void
gld960_after_parse()
{
}
static void
gld960_after_allocation()
{
}
static void
gld960_before_allocation()
{
}
static void
gld960_set_output_arch()
{
/* Set the output architecture and machine if possible */
unsigned long machine = 0;
bfd_set_arch_mach(output_bfd, ldfile_output_architecture, machine);
}
static char *
gld960_choose_target()
{
char *from_outside = getenv(TARGET_ENVIRON);
output_filename = "b.out";
if (from_outside != (char *)NULL)
return from_outside;
return GLD960_TARGET;
}
static void
gld960_syslib()
{
info("%S SYSLIB ignored\n");
}
static void
gld960_hll()
{
info("%S HLL ignored\n");
}
static char *script = "\
\
SECTIONS \
{ \
.text : \
{ \
CREATE_OBJECT_SYMBOLS \
*(.text) \
_etext =.;\
} \
\
.data SIZEOF(.text) + ADDR(.text):\
{ \
\
*(.data) \
_edata = .; \
} \
.bss SIZEOF(.data) + ADDR(.data) : \
{ _bss_start = .;\
*(.bss) \
[COMMON] \
_end = . ; \
} \
} \
";
static char *
gld960_get_script()
{
return script;
}
struct ld_emulation_xfer_struct ld_gld960_emulation =
{
gld960_before_parse,
gld960_syslib,
gld960_hll,
gld960_after_parse,
gld960_after_allocation,
gld960_set_output_arch,
gld960_choose_target,
gld960_before_allocation,
gld960_get_script,
};