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Fri Sep 25 11:08:01 1992 Steve Chamberlain (sac@thepub.cygnus.com) 

Added initial support for the z8k
	* z8ksim.em, z8ksim.sc-sh, z8ksim.sh: new files
	* configure.in, Makefile.in: modified to reflect above

	* ldlang.c (lang_check): when linking conflicting architectures,
	make the output file reflect at least one of the bad inputs.
gdb-4_18-branch
Steve Chamberlain 34 years ago
parent
f4e5603151
commit
22a78f0d96
7 changed files with 180 additions and 24 deletions
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  1. 15
      ld/.Sanitize
  2. 9
      ld/ChangeLog
  3. 6
      ld/Makefile.in
  4. 54
      ld/ldlang.c
  5. 86
      ld/z8ksim.em
  6. 26
      ld/z8ksim.sc-sh
  7. 8
      ld/z8ksim.sh

15
ld/.Sanitize
View File

@ -119,6 +119,9 @@ sun4.sh
vanilla.em
vanilla.sc-sh
vanilla.sh
z8ksim.em
z8ksim.sc-sh
z8ksim.sh
Do-last:
@ -127,7 +130,17 @@ echo Done in `pwd`.
#
#
# $Log$
# Revision 1.46 1992/09/11 20:43:30 sac
# Revision 1.47 1992/09/25 18:10:41 sac
# Fri Sep 25 11:08:01 1992 Steve Chamberlain (sac@thepub.cygnus.com)
#
# Added initial support for the z8k
# * z8ksim.em, z8ksim.sc-sh, z8ksim.sh: new files
# * configure.in, Makefile.in: modified to reflect above
#
# * ldlang.c (lang_check): when linking conflicting architectures,
# make the output file reflect at least one of the bad inputs.
#
# Revision 1.46 1992/09/11 20:43:30 sac
# Sanitize slip
#
# Revision 1.45 1992/09/11 17:47:22 sac

9
ld/ChangeLog
View File

@ -1,3 +1,12 @@
Fri Sep 25 11:08:01 1992 Steve Chamberlain (sac@thepub.cygnus.com)
Added initial support for the z8k
* z8ksim.em, z8ksim.sc-sh, z8ksim.sh: new files
* configure.in, Makefile.in: modified to reflect above
* ldlang.c (lang_check): when linking conflicting architectures,
make the output file reflect at least one of the bad inputs.
Tue Sep 15 15:35:38 1992 Ian Lance Taylor (ian@cygnus.com)
* Makefile.in (install): if $(tooldir) exists, install ld in

6
ld/Makefile.in
View File

@ -119,7 +119,7 @@ ALL_EMULATIONS=em_lnk960.o em_sun3.o em_i386aout.o em_go32.o \
em_m88kbcs.o em_a29k.o em_news.o em_hp300bsd.o \
em_h8300hms.o em_ebmon29k.o em_sun4.o em_gld960.o \
em_m68kcoff.o em_h8300xray.o em_st2000.o em_sa29200.o \
em_vanilla.o em_i386coff.o
em_vanilla.o em_i386coff.o em_z8ksim.o
EMULATION_OFILES=${ALL_EMULATIONS}
#EMULATION_OFILES=em_${EMUL}.o ${OTHER_EMULATIONS}
@ -228,6 +228,9 @@ em_h8300xray.c: $(srcdir)/h8300xray.sh \
em_st2000.c: $(srcdir)/st2000.sh \
$(srcdir)/st2000.em $(srcdir)/st2000.sc-sh ${GEN_DEPENDS}
${GENSCRIPTS} st2000.sh
em_z8ksim.c: $(srcdir)/z8ksim.sh \
$(srcdir)/z8ksim.em $(srcdir)/z8ksim.sc-sh ${GEN_DEPENDS}
${GENSCRIPTS} z8ksim.sh
em_vanilla.c: $(srcdir)/vanilla.sh \
$(srcdir)/vanilla.em $(srcdir)/vanilla.sc-sh ${GEN_DEPENDS}
${GENSCRIPTS} vanilla.sh
@ -381,6 +384,7 @@ ldgram.c:ldgram.y
h8300hms.o:h8300hms.c
h8300xray.o:h8300xray.c
st2000.o:st2000.c
z8ksim.o:z8ksim.c
stage1: force
-mkdir stage1

54
ld/ldlang.c
View File

@ -1846,34 +1846,44 @@ static void
DEFUN_VOID (lang_finish)
{
ldsym_type *lgs;
int warn = 1;
if (entry_symbol == (char *) NULL)
{
/* No entry has been specified, look for start */
entry_symbol = "start";
}
{
/* No entry has been specified, look for start, but don't warn */
entry_symbol = "start";
warn =0;
}
lgs = ldsym_get_soft (entry_symbol);
if (lgs && lgs->sdefs_chain)
{
asymbol *sy = *(lgs->sdefs_chain);
{
asymbol *sy = *(lgs->sdefs_chain);
/* We can set the entry address*/
bfd_set_start_address (output_bfd,
outside_symbol_address (sy));
/* We can set the entry address*/
bfd_set_start_address (output_bfd,
outside_symbol_address (sy));
}
}
else
{
/* Can't find anything reasonable,
use the first address in the text section
*/
asection *ts = bfd_get_section_by_name (output_bfd, ".text");
if (ts)
{
/* Can't find anything reasonable,
use the first address in the text section
*/
asection *ts = bfd_get_section_by_name (output_bfd, ".text");
if (warn)
einfo ("%P: Warning, can't find entry symbol %s, defaulting to %V\n",
entry_symbol, ts->vma);
if (ts)
{
bfd_set_start_address (output_bfd, ts->vma);
}
bfd_set_start_address (output_bfd, ts->vma);
}
else
{
if (warn)
einfo ("%P: Warning, can't find entry symbol %s, not setting start address\n",
entry_symbol);
}
}
}
/* By now we know the target architecture, and we may have an */
@ -1905,7 +1915,7 @@ DEFUN_VOID (lang_check)
compatible = bfd_arch_get_compatible (input_bfd,
output_bfd);
if (compatible)
{
ldfile_output_machine = compatible->mach;
@ -1919,8 +1929,8 @@ DEFUN_VOID (lang_check)
bfd_printable_name (output_bfd));
bfd_set_arch_mach (output_bfd,
ldfile_new_output_architecture,
ldfile_new_output_machine);
input_architecture,
input_machine);
}
}

86
ld/z8ksim.em
View File

@ -0,0 +1,86 @@
cat >em_${EMULATION_NAME}.c <<EOF
/* 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. */
/*
Written by Steve Chamberlain steve@cygnus.com
*/
#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 z8ksim_before_parse()
{
ldfile_output_architecture = bfd_arch_z8k;
}
static char *z8ksim_script =
#include "z8ksim.x"
;
static char *z8ksim_script_option_Ur =
#include "z8ksim.x"
;
static char *z8ksim_script_option_r =
#include "z8ksim.x"
;
static char *z8ksim_get_script()
{
extern ld_config_type config;
if (config.relocateable_output == true &&
config.build_constructors == true) {
return z8ksim_script_option_Ur;
}
if (config.relocateable_output) {
return z8ksim_script_option_r;
}
return z8ksim_script;
}
struct ld_emulation_xfer_struct ld_z8ksim_emulation =
{
z8ksim_before_parse,
syslib_default,
hll_default,
after_parse_default,
after_allocation_default,
set_output_arch_default,
ldemul_default_target,
before_allocation_default,
z8ksim_get_script,
"z8ksim"
};
EOF

26
ld/z8ksim.sc-sh
View File

@ -0,0 +1,26 @@
cat <<EOF
OUTPUT_FORMAT("${OUTPUT_FORMAT}")
OUTPUT_ARCH(${ARCH})
SECTIONS
{
.text :
{
*(.text)
*(.strings)
_etext = .;
*(.data)
_edata = .;
*(.bss)
*(COMMON)
_end = .;
}
}
EOF

8
ld/z8ksim.sh
View File

@ -0,0 +1,8 @@
EMULATION_NAME=z8ksim
SCRIPT_NAME=z8ksim
OUTPUT_FORMAT="coff-z8k"
TEXT_START_ADDR=0x0
PAGE_SIZE=128
ARCH=z8k
TEMPLATE_NAME=z8ksim
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