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The default script is now compiled in; the others are still in the filesystem.

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This commit is contained in:
David MacKenzie 1993-07-22 00:33:10 +00:00
parent 51b4195fb5
commit a6152e399b
16 changed files with 901 additions and 63 deletions
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27
ld/ChangeLog
View file

@ -1,3 +1,30 @@
Wed Jul 21 14:28:42 1993 David J. Mackenzie (djm@thepub.cygnus.com)
* Makefile.in (GENSCRIPTS): Pass the default emulation name to
genscripts.sh. Pass the current emulation name without ".sh" on
the end.
* genscripts.sh: Take an default emulation arg.
Use the emulparams file name as EMULATION_NAME.
Make default lib path for cross-compiling ':', not null.
* emulparams/*.sh: Don't set EMULATION_NAME.
* ldemul.c (ldemul_get_script): Take isfile arg.
Pass it to emulation's get_script function.
* ldemul.h: Adjust get_script prototypes.
* ldfile.c (ldfile_find_command_file): Renamed from find_a_name.
No longer static.
* ldfile.h: Declare it.
* ldgram.y: Accept a script on the command line again,
for parsing compiled-in scripts.
* ldmain.c (main): If ld script is a file, parse it as a -T
option, otherwise parse it directly.
* emultempl/*.em (*get_script): Return the scripts themselves if
this is the default emulation; otherwise return their file names.
* emultempl/m88kbcs.em: New file, to take m88kbcs.em #ifdef out of
generic.em.
* emulparams/m88kbcs.sh: Use it.
* ld.h (unix_relocate): Remove unused var.
Tue Jul 20 12:01:49 1993 Ken Raeburn (raeburn@cambridge.cygnus.com)
* Makefile.in (ALL_EMULATIONS): Delete em_i386linux.o (for which

63
ld/Makefile.in
View file

@ -180,6 +180,7 @@ ldgram.h ldgram.c: ldgram.y
mv -f y.tab.c ldgram.c
mv -f y.tab.h ldgram.h
# EMUL is the name of a file in the emulparams subdir, without the .sh.
DEF_EMUL = ` if [ -z "$(EMUL)" ] ; then \
echo "you must set a default emulation" 1>&2 ; \
exit 1 ; \
@ -212,99 +213,99 @@ ldlex.c: ldlex.l ldgram.h
# These all start with em_ so 'make clean' can find them.
GENSCRIPTS=sh $(srcdir)/genscripts.sh ${srcdir} ${libdir} ${host_alias} ${target_alias}
GENSCRIPTS=sh $(srcdir)/genscripts.sh ${srcdir} ${libdir} ${host_alias} ${target_alias} ${EMUL}
GEN_DEPENDS=$(srcdir)/genscripts.sh
em_sun4.c: $(srcdir)/emulparams/sun4.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} sun4.sh
${GENSCRIPTS} sun4
em_sun3.c: $(srcdir)/emulparams/sun3.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} sun3.sh
${GENSCRIPTS} sun3
em_go32.c: $(srcdir)/emulparams/go32.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} go32.sh
${GENSCRIPTS} go32
em_news.c: $(srcdir)/emulparams/news.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} news.sh
${GENSCRIPTS} news
em_vax.c: $(srcdir)/emulparams/vax.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} vax.sh
${GENSCRIPTS} vax
em_hp300bsd.c: $(srcdir)/emulparams/hp300bsd.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} hp300bsd.sh
${GENSCRIPTS} hp300bsd
em_hp3hpux.c: $(srcdir)/emulparams/hp3hpux.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} hp3hpux.sh
${GENSCRIPTS} hp3hpux
em_hppaosf.c: $(srcdir)/emulparams/hppaosf.sh \
$(srcdir)/emultempl/hppaosf.em $(srcdir)/scripttempl/hppaosf.sc ${GEN_DEPENDS}
${GENSCRIPTS} hppaosf.sh
${GENSCRIPTS} hppaosf
em_i386aout.c: $(srcdir)/emulparams/i386aout.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} i386aout.sh
${GENSCRIPTS} i386aout
em_ebmon29k.c: $(srcdir)/emulparams/ebmon29k.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/ebmon29k.sc ${GEN_DEPENDS}
${GENSCRIPTS} ebmon29k.sh
${GENSCRIPTS} ebmon29k
em_sa29200.c: $(srcdir)/emulparams/sa29200.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/sa29200.sc ${GEN_DEPENDS}
${GENSCRIPTS} sa29200.sh
${GENSCRIPTS} sa29200
em_a29k.c: $(srcdir)/emulparams/a29k.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/a29k.sc ${GEN_DEPENDS}
${GENSCRIPTS} a29k.sh
${GENSCRIPTS} a29k
em_m88kbcs.c: $(srcdir)/emulparams/m88kbcs.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/m88kbcs.sc ${GEN_DEPENDS}
${GENSCRIPTS} m88kbcs.sh
${GENSCRIPTS} m88kbcs
em_h8300.c: $(srcdir)/emulparams/h8300.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/h8300.sc ${GEN_DEPENDS}
${GENSCRIPTS} h8300.sh
${GENSCRIPTS} h8300
em_h8300h.c: $(srcdir)/emulparams/h8300h.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/h8300h.sc ${GEN_DEPENDS}
${GENSCRIPTS} h8300h.sh
${GENSCRIPTS} h8300h
em_h8500.c: $(srcdir)/emulparams/h8500.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/h8500.sc ${GEN_DEPENDS}
${GENSCRIPTS} h8500.sh
${GENSCRIPTS} h8500
em_sh.c: $(srcdir)/emulparams/sh.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/sh.sc ${GEN_DEPENDS}
${GENSCRIPTS} sh.sh
${GENSCRIPTS} sh
em_st2000.c: $(srcdir)/emulparams/st2000.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/st2000.sc ${GEN_DEPENDS}
${GENSCRIPTS} st2000.sh
${GENSCRIPTS} st2000
em_z8ksim.c: $(srcdir)/emulparams/z8ksim.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/z8ksim.sc ${GEN_DEPENDS}
${GENSCRIPTS} z8ksim.sh
${GENSCRIPTS} z8ksim
em_vanilla.c: $(srcdir)/emulparams/vanilla.sh \
$(srcdir)/emultempl/vanilla.em $(srcdir)/scripttempl/vanilla.sc ${GEN_DEPENDS}
${GENSCRIPTS} vanilla.sh
${GENSCRIPTS} vanilla
em_lnk960.c: $(srcdir)/emulparams/lnk960.sh \
$(srcdir)/emultempl/lnk960.em $(srcdir)/scripttempl/i960.sc ${GEN_DEPENDS}
${GENSCRIPTS} lnk960.sh
${GENSCRIPTS} lnk960
em_gld960.c: $(srcdir)/emulparams/gld960.sh \
$(srcdir)/emultempl/gld960.em $(srcdir)/scripttempl/i960.sc ${GEN_DEPENDS}
${GENSCRIPTS} gld960.sh
${GENSCRIPTS} gld960
em_m68kcoff.c: $(srcdir)/emulparams/m68kcoff.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/m68kcoff.sc ${GEN_DEPENDS}
${GENSCRIPTS} m68kcoff.sh
${GENSCRIPTS} m68kcoff
em_i386coff.c: $(srcdir)/emulparams/i386coff.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/i386coff.sc ${GEN_DEPENDS}
${GENSCRIPTS} i386coff.sh
${GENSCRIPTS} i386coff
em_mipslit.c: $(srcdir)/emulparams/mipslit.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/mips.sc ${GEN_DEPENDS}
${GENSCRIPTS} mipslit.sh
${GENSCRIPTS} mipslit
em_i386bsd.c: $(srcdir)/emulparams/i386bsd.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} i386bsd.sh
${GENSCRIPTS} i386bsd
em_mipsbig.c: $(srcdir)/emulparams/mipsbig.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/mips.sc ${GEN_DEPENDS}
${GENSCRIPTS} mipsbig.sh
${GENSCRIPTS} mipsbig
em_mipsbsd.c: $(srcdir)/emulparams/mipsbsd.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/aout.sc ${GEN_DEPENDS}
${GENSCRIPTS} mipsbsd.sh
${GENSCRIPTS} mipsbsd
em_mipsidt.c: $(srcdir)/emulparams/mipsidt.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/mips.sc ${GEN_DEPENDS}
${GENSCRIPTS} mipsidt.sh
${GENSCRIPTS} mipsidt
em_mipsidtl.c: $(srcdir)/emulparams/mipsidtl.sh \
$(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/mips.sc ${GEN_DEPENDS}
${GENSCRIPTS} mipsidtl.sh
${GENSCRIPTS} mipsidtl
$(LD_PROG): $(OFILES) $(BFDLIB) $(LIBIBERTY)
$(CC) $(INCLUDES) $(HDEFINES) $(TDEFINES) $(CDEFINES) $(LDFLAGS) -o $(LD_PROG) $(OFILES) $(BFDLIB) $(LIBIBERTY) $(LOADLIBES) $(CFLAGS)

1
ld/emulparams/a29k.sh
View file

@ -1,4 +1,3 @@
EMULATION_NAME=a29k
SCRIPT_NAME=a29k
OUTPUT_FORMAT="coff-a29k-big"
TEXT_START_ADDR=0x1000000

1
ld/emulparams/ebmon29k.sh
View file

@ -1,4 +1,3 @@
EMULATION_NAME=ebmon29k
SCRIPT_NAME=ebmon29k
OUTPUT_FORMAT="coff-a29k-big"
TEXT_START_ADDR=0x8000

1
ld/emulparams/elf32-sparc.sh
View file

@ -1,4 +1,3 @@
EMULATION_NAME=elf32_sparc
SCRIPT_NAME=elf
OUTPUT_FORMAT="elf32-sparc"
TEXT_START_ADDR=0x100200

1
ld/emulparams/elf64-sparc.sh
View file

@ -1,4 +1,3 @@
EMULATION_NAME=elf64_sparc
SCRIPT_NAME=elf
OUTPUT_FORMAT="elf64-sparc"
TEXT_START_ADDR=0x100200

1
ld/emulparams/go32.sh
View file

@ -1,4 +1,3 @@
EMULATION_NAME=go32
SCRIPT_NAME=aout
OUTPUT_FORMAT="a.out-i386"
TEXT_START_ADDR=0x1020

1
ld/emulparams/hppaosf.sh
View file

@ -1,4 +1,3 @@
EMULATION_NAME=hppaosf
SCRIPT_NAME=hppaosf
OUTPUT_FORMAT="elf-big"
TEXT_START_ADDR=0x1000

1
ld/emulparams/sa29200.sh
View file

@ -1,4 +1,3 @@
EMULATION_NAME=sa29200
SCRIPT_NAME=sa29200
OUTPUT_FORMAT="coff-a29k-big"
TEXT_START_ADDR=0x40004000

1
ld/emulparams/z8ksim.sh
View file

@ -1,4 +1,3 @@
EMULATION_NAME=z8ksim
SCRIPT_NAME=z8ksim
OUTPUT_FORMAT="coff-z8k"
TEXT_START_ADDR=0x0

125
ld/emultempl/generic.em Normal file
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@ -0,0 +1,125 @@
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
cat >em_${EMULATION_NAME}.c <<EOF
/* This file is is generated by a shell script. DO NOT EDIT! */
/* emulate the original gld for the given ${EMULATION_NAME}
Copyright (C) 1991 Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
This file is part of GLD, the Gnu Linker.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define TARGET_IS_${EMULATION_NAME}
#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;
static void
gld${EMULATION_NAME}_before_parse()
{
#ifndef TARGET_ /* I.e., if not generic. */
ldfile_output_architecture = bfd_arch_${ARCH};
#endif /* not TARGET_ */
}
static char *
gld${EMULATION_NAME}_get_script(isfile)
int *isfile;
EOF
if test "$DEFAULT_EMULATION" = "$EMULATION_NAME"
then
# Scripts compiled in.
# sed commands to quote an ld script as a C string.
sc='s/["\\]/\\&/g
s/$/\\n\\/
1s/^/"{/
$s/$/n}"/
'
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 0;
if (config.relocateable_output == true && config.build_constructors == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
else if (config.relocateable_output == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`;
else if (!config.text_read_only)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`;
else if (!config.magic_demand_paged)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`;
else
return `sed "$sc" ldscripts/${EMULATION_NAME}.x`;
}
EOF
else
# Scripts read from the filesystem.
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 1;
if (config.relocateable_output == true && config.build_constructors == true)
return "ldscripts/${EMULATION_NAME}.xu";
else if (config.relocateable_output == true)
return "ldscripts/${EMULATION_NAME}.xr";
else if (!config.text_read_only)
return "ldscripts/${EMULATION_NAME}.xbn";
else if (!config.magic_demand_paged)
return "ldscripts/${EMULATION_NAME}.xn";
else
return "ldscripts/${EMULATION_NAME}.x";
}
EOF
fi
cat >>em_${EMULATION_NAME}.c <<EOF
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
{
gld${EMULATION_NAME}_before_parse,
syslib_default,
hll_default,
after_parse_default,
after_allocation_default,
set_output_arch_default,
ldemul_default_target,
before_allocation_default,
gld${EMULATION_NAME}_get_script,
"${EMULATION_NAME}",
"${OUTPUT_FORMAT}"
};
EOF

190
ld/emultempl/gld960.em Normal file
View file

@ -0,0 +1,190 @@
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
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. */
/*
* emulate the Intels port of gld
*/
#include "bfd.h"
#include "sysdep.h"
#include "ld.h"
#include "config.h"
#include "ldemul.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;
#ifdef GNU960
static void
gld960_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/libbout",""));
}
}
ldfile_output_architecture = bfd_arch_i960;
}
#else /* not GNU960 */
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;
}
#endif /* GNU960 */
static void
gld960_set_output_arch()
{
bfd_set_arch_mach(output_bfd, ldfile_output_architecture, bfd_mach_i960_core);
}
static char *
gld960_choose_target()
{
#ifdef GNU960
output_filename = "b.out";
return bfd_make_targ_name(BFD_BOUT_FORMAT, 0);
#else
char *from_outside = getenv(TARGET_ENVIRON);
output_filename = "b.out";
if (from_outside != (char *)NULL)
return from_outside;
return "b.out.little";
#endif
}
static char *
gld960_get_script(isfile)
int *isfile;
EOF
if test "$DEFAULT_EMULATION" = "$EMULATION_NAME"
then
# Scripts compiled in.
# sed commands to quote an ld script as a C string.
sc='s/["\\]/\\&/g
s/$/\\n\\/
1s/^/"{/
$s/$/n}"/
'
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 0;
if (config.relocateable_output == true && config.build_constructors == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
else if (config.relocateable_output == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`;
else if (!config.text_read_only)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`;
else if (!config.magic_demand_paged)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`;
else
return `sed "$sc" ldscripts/${EMULATION_NAME}.x`;
}
EOF
else
# Scripts read from the filesystem.
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 1;
if (config.relocateable_output == true && config.build_constructors == true)
return "ldscripts/${EMULATION_NAME}.xu";
else if (config.relocateable_output == true)
return "ldscripts/${EMULATION_NAME}.xr";
else if (!config.text_read_only)
return "ldscripts/${EMULATION_NAME}.xbn";
else if (!config.magic_demand_paged)
return "ldscripts/${EMULATION_NAME}.xn";
else
return "ldscripts/${EMULATION_NAME}.x";
}
EOF
fi
cat >>em_${EMULATION_NAME}.c <<EOF
struct ld_emulation_xfer_struct ld_gld960_emulation =
{
gld960_before_parse,
syslib_default,
hll_default,
after_parse_default,
after_allocation_default,
gld960_set_output_arch,
gld960_choose_target,
before_allocation_default,
gld960_get_script,
"960",
""
};
EOF

70
ld/emultempl/hppaosf.em
View file

@ -1,3 +1,5 @@
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
cat >em_${EMULATION_NAME}.c <<EOF
/* An emulation for HP PA-RISC OSF/1 linkers.
Copyright (C) 1991 Free Software Foundation, Inc.
@ -79,24 +81,66 @@ hppaosf_set_output_arch()
bfd_set_arch_mach(output_bfd, ldfile_output_architecture, machine);
}
static char *script =
"hppaosf.x"
;
static char *
hppaosf_get_script(isfile)
int *isfile;
EOF
static char *script_reloc =
"hppaosf.xr"
;
if test "$DEFAULT_EMULATION" = "$EMULATION_NAME"
then
# Scripts compiled in.
# sed commands to quote an ld script as a C string.
sc='s/["\\]/\\&/g
s/$/\\n\\/
1s/^/"{/
$s/$/n}"/
'
static char *hppaosf_get_script()
{
extern ld_config_type config;
if (config.relocateable_output)
return script_reloc;
return script;
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 0;
if (config.relocateable_output == true && config.build_constructors == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
else if (config.relocateable_output == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`;
else if (!config.text_read_only)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`;
else if (!config.magic_demand_paged)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`;
else
return `sed "$sc" ldscripts/${EMULATION_NAME}.x`;
}
EOF
else
# Scripts read from the filesystem.
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 1;
if (config.relocateable_output == true && config.build_constructors == true)
return "ldscripts/${EMULATION_NAME}.xu";
else if (config.relocateable_output == true)
return "ldscripts/${EMULATION_NAME}.xr";
else if (!config.text_read_only)
return "ldscripts/${EMULATION_NAME}.xbn";
else if (!config.magic_demand_paged)
return "ldscripts/${EMULATION_NAME}.xn";
else
return "ldscripts/${EMULATION_NAME}.x";
}
EOF
fi
cat >>em_${EMULATION_NAME}.c <<EOF
struct ld_emulation_xfer_struct ld_hppaosf_emulation =
{

331
ld/emultempl/lnk960.em Normal file
View file

@ -0,0 +1,331 @@
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
cat >em_${EMULATION_NAME}.c <<EOF
/* intel coff loader emulation specific stuff
Copyright (C) 1991 Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
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 2, 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. */
#include "bfd.h"
#include "sysdep.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) {
einfo("%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, 0);
#else
char *from_outside = getenv(TARGET_ENVIRON);
if (from_outside != (char *)NULL)
return from_outside;
#ifdef LNK960_LITTLE
return "coff-Intel-little";
#else
return "coff-Intel-big";
#endif
#endif
}
static char *
lnk960_get_script(isfile)
int *isfile;
EOF
if test "$DEFAULT_EMULATION" = "$EMULATION_NAME"
then
# Scripts compiled in.
# sed commands to quote an ld script as a C string.
sc='s/["\\]/\\&/g
s/$/\\n\\/
1s/^/"{/
$s/$/n}"/
'
cat >>em_${EMULATION_NAME}.c <<EOF
extern ld_config_type config;
*isfile = 0;
if (config.relocateable_output == true && config.build_constructors == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
else if (config.relocateable_output == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`;
else if (!config.text_read_only)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`;
else if (!config.magic_demand_paged)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`;
else
return `sed "$sc" ldscripts/${EMULATION_NAME}.x`;
}
EOF
else
# Scripts read from the filesystem.
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 1;
if (config.relocateable_output == true && config.build_constructors == true)
return "ldscripts/${EMULATION_NAME}.xu";
else if (config.relocateable_output == true)
return "ldscripts/${EMULATION_NAME}.xr";
else if (!config.text_read_only)
return "ldscripts/${EMULATION_NAME}.xbn";
else if (!config.magic_demand_paged)
return "ldscripts/${EMULATION_NAME}.xn";
else
return "ldscripts/${EMULATION_NAME}.x";
}
EOF
fi
cat >>em_${EMULATION_NAME}.c <<EOF
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,
"lnk960",
""
};
EOF

126
ld/emultempl/m88kbcs.em Normal file
View file

@ -0,0 +1,126 @@
# This shell script emits a C file. -*- C -*-
# It does some substitutions.
cat >em_${EMULATION_NAME}.c <<EOF
/* This file is is generated by a shell script. DO NOT EDIT! */
/* emulate the original gld for the given ${EMULATION_NAME}
Copyright (C) 1991 Free Software Foundation, Inc.
Written by Steve Chamberlain steve@cygnus.com
This file is part of GLD, the Gnu Linker.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#define TARGET_IS_${EMULATION_NAME}
#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;
static void
gld${EMULATION_NAME}_before_parse()
{
extern char lprefix;
lprefix = '@';
ldfile_output_architecture = bfd_arch_${ARCH};
}
static char *
gld${EMULATION_NAME}_get_script(isfile)
int *isfile;
EOF
if test "$DEFAULT_EMULATION" = "$EMULATION_NAME"
then
# Scripts compiled in.
# sed commands to quote an ld script as a C string.
sc='s/["\\]/\\&/g
s/$/\\n\\/
1s/^/"{/
$s/$/n}"/
'
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 0;
if (config.relocateable_output == true && config.build_constructors == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
else if (config.relocateable_output == true)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xr`;
else if (!config.text_read_only)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xbn`;
else if (!config.magic_demand_paged)
return `sed "$sc" ldscripts/${EMULATION_NAME}.xn`;
else
return `sed "$sc" ldscripts/${EMULATION_NAME}.x`;
}
EOF
else
# Scripts read from the filesystem.
cat >>em_${EMULATION_NAME}.c <<EOF
{
extern ld_config_type config;
*isfile = 1;
if (config.relocateable_output == true && config.build_constructors == true)
return "ldscripts/${EMULATION_NAME}.xu";
else if (config.relocateable_output == true)
return "ldscripts/${EMULATION_NAME}.xr";
else if (!config.text_read_only)
return "ldscripts/${EMULATION_NAME}.xbn";
else if (!config.magic_demand_paged)
return "ldscripts/${EMULATION_NAME}.xn";
else
return "ldscripts/${EMULATION_NAME}.x";
}
EOF
fi
cat >>em_${EMULATION_NAME}.c <<EOF
struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
{
gld${EMULATION_NAME}_before_parse,
syslib_default,
hll_default,
after_parse_default,
after_allocation_default,
set_output_arch_default,
ldemul_default_target,
before_allocation_default,
gld${EMULATION_NAME}_get_script,
"${EMULATION_NAME}",
"${OUTPUT_FORMAT}"
};
EOF

24
ld/genscripts.sh
View file

@ -1,18 +1,23 @@
# genscripts.sh
# This shell script does the work of generating the ld-emulation-target
# specific information from a specific file of paramaters.
# Usage: genscripts.sh srcdir libdir host_alias target_alias emulation_name
#!/bin/sh
# genscripts.sh - generate the ld-emulation-target specific files
#
# Usage: genscripts.sh srcdir libdir host_alias target_alias \
# default_emulation this_emulation
#
# Sample usage:
# genscripts.sh /offsite/djm/work/devo/ld /usr/local/lib sparc-sun-sunos4.1.3 sparc-sun-sunos4.1.3 sun3.sh
# genscripts.sh /djm/ld-devo/devo/ld /usr/local/lib sparc-sun-sunos4.1.3 \
# sparc-sun-sunos4.1.3 sun4 sun3
# produces sun3.x sun3.xbn sun3.xn sun3.xr sun3.xu em_sun3.c
srcdir=$1
libdir=$2
host_alias=$3
target_alias=$4
DEFAULT_EMULATION=$5
EMULATION_NAME=$6
# Include the emulation-specific parameters:
. ${srcdir}/emulparams/$5
. ${srcdir}/emulparams/${EMULATION_NAME}.sh
# Set the library search path, for libraries named by -lfoo.
# If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
@ -30,7 +35,7 @@ if [ "x${LIB_PATH}" = "x" ] ; then
fi
else
# Cross.
LIB_PATH=
LIB_PATH=:
fi
fi
LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\1);/g'`
@ -38,6 +43,7 @@ LIB_SEARCH_DIRS=`echo ${LIB_PATH} | tr ':' ' ' | sed -e 's/\([^ ][^ ]*\)/SEARCH_
# Generate 5 script files from a master script template in
# ${srcdir}/scripttempl/${SCRIPT_NAME}.sh. Which one of the 5 script files
# is actually used depends on command line options given to ld.
# (SCRIPT_NAME was set in the emulparams_file.)
#
# A .x script file is the default script.
# A .xr script is for linking without relocation (-r flag).
@ -85,9 +91,5 @@ DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
(. ${srcdir}/scripttempl/${SCRIPT_NAME}.sc) | sed -e '/^ *$/d' > \
ldscripts/${EMULATION_NAME}.xbn
#sed -e s/"<ldtarget>"/${EMULATION_NAME}/g -e s/"<arch>"/${ARCH}/g \
# -e s/"<target>"/${EMULATION_NAME}/g -e s/"<target_name>"/${OUTPUT_FORMAT}/g \
# <${srcdir}/${TEMPLATE_NAME-ldtemplate} >em_${EMULATION_NAME}.c
# Generate em_${EMULATION_NAME}.c.
. ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em