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binutils-gdb
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Major rewrite of how ld is configured. The major idea 

is to use shell scripts to generate everything.
	* generic.em replaces ldtemplate.
	* Other *.em files replace various *.c files.
	A *.em file is a shell script that generates the corresponding
	ld__*.c file that implements an emulation.  This is usually
	a straight 'cat' of a here-document, possibly with substitutions.
	* Script files (*.sc) are places by *.sc-sh scripts.
	Again, these are simple shell scripts that 'cat'
	here-documents, usually with some substitutions.
	The output a *.sc-sh is a script file.
This commit is contained in:
Per Bothner 1992-02-15 22:07:15 +00:00
parent 3340f7e5fd
commit 6ecb2b74ee
12 changed files with 880 additions and 0 deletions
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40
ld/a29k.sc-sh Executable file
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cat <<EOF
OUTPUT_FORMAT("coff-a29k-big")
INPUT(/lab3/u3/sym1/tools/usr/lib/segments.o) /* Has .rstack/.mstack */
SEARCH_DIR(/lib)
SEARCH_DIR(/usr/lib)
SEARCH_DIR(/usr/local/lib)
MEMORY {
text : ORIGIN = 0x1000000, LENGTH = 0x1000000
talias : ORIGIN = 0x2000000, LENGTH = 0x1000000
data : ORIGIN = 0x3000000, LENGTH = 0x1000000
mstack : ORIGIN = 0x4000000, LENGTH = 0x1000000
rstack : ORIGIN = 0x5000000, LENGTH = 0x1000000
}
SECTIONS
{
.text : {
*(.text)
__etext = .;
*(.lit)
*(.shdata)
} > text
.shbss SIZEOF(.text) + ADDR(.text) : {
*(.shbss)
}
.talias : { } > talias
.data : {
*(.data)
__edata = .;
} > data
.bss SIZEOF(.data) + ADDR(.data) :
{
*(.bss)
*(COMMON)
__end = ALIGN(0x8);
}
.mstack : { } > mstack
.rstack : { } > rstack
}
EOF

29
ld/aout.sc-sh Executable file
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cat <<EOF
OUTPUT_FORMAT("${OUTPUT_FORMAT}")
OUTPUT_ARCH(${ARCH})
${RELOCATING+${LIB_SEARCH_DIRS}}
${RELOCATING+__DYNAMIC = 0;}
SECTIONS
{
.text ${RELOCATING+${TEXT_START_ADDR}}:
{
CREATE_OBJECT_SYMBOLS
*(.text)
${RELOCATING+_etext = ${DATA_ALIGNMENT};}
}
.data ${RELOCATING+${DATA_ALIGNMENT}} :
{
*(.data)
${CONSTRUCTING+CONSTRUCTORS}
${RELOCATING+_edata = .;}
}
.bss ${RELOCATING+SIZEOF(.data) + ADDR(.data)} :
{
*(.bss)
*(COMMON)
${RELOCATING+_end = .}
${RELOCATING+__end = .}
}
}
EOF

27
ld/ebmon29k.sc-sh Executable file
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cat <<EOF
OUTPUT_FORMAT("${OUTPUT_FORMAT}")
ENTRY(start)
SECTIONS {
.text ${RELOCATING+${TEXT_START_ADDR}} :
{
*(.text);
${RELOCATING+_etext = .}
}
data ${RELOCATING+0x80002000} :
{
*(.data);
*(.mstack);
*(.shbss);
*(.rstack);
*(.mstack);
${CONSTRUCTING+CONSTRUCTORS}
}
.bss . :
{
*(COMMON)
*(.bss);
${RELOCATING+_end = .;}
}
}
EOF

102
ld/generic.em Normal file
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# This shell script that emits a C file.
# It does some substitutions.
cat >ld__${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${EMULATION_NAME}_before_parse()
{
#ifdef TARGET_IS_m88kbcs
extern char lprefix;
lprefix = '@';
#else
#ifndef TARGET_ /* I.e., if not generic */
ldfile_output_architecture = bfd_arch_${ARCH};
#endif
#endif
}
static char *gld${EMULATION_NAME}_script =
#include "${EMULATION_NAME}.x"
;
static char *gld${EMULATION_NAME}_script_option_Ur =
#include "${EMULATION_NAME}.xu"
;
static char *gld${EMULATION_NAME}_script_option_r =
#include "${EMULATION_NAME}.xr"
;
static char *gld${EMULATION_NAME}_script_option_n = /* Used with -n flag. */
#include "${EMULATION_NAME}.xn"
;
static char *gld${EMULATION_NAME}_script_option_N = /* Used with -N flag. */
#include "${EMULATION_NAME}.xN"
;
static char *gld${EMULATION_NAME}_get_script()
{
extern ld_config_type config;
if (config.relocateable_output == true &&
config.build_constructors == true) {
return gld${EMULATION_NAME}_script_option_Ur;
}
if (config.relocateable_output == true) {
return gld${EMULATION_NAME}_script_option_r;
}
if (!config.text_read_only)
return gld${EMULATION_NAME}_script_option_N;
if (!config.magic_demand_paged)
return gld${EMULATION_NAME}_script_option_n;
return gld${EMULATION_NAME}_script;
}
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

137
ld/gld960.em Normal file
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cat >ld__${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.big";
#endif
}
static char *script =
#include "gld960.x"
;
static char *
gld960_get_script()
{
return script;
}
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,
"lnk960",
""
};
EOF

88
ld/h8300hms.em Normal file
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cat >ld__${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
The controller which tells the gnu linker how to behave like one for
the Hitach H8/300 with IEEE records.
*/
#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 h8300hms_before_parse()
{
ldfile_output_architecture = bfd_arch_h8300;
}
static char *h8300hms_script =
#include "h8300hms.x"
;
static char *h8300hms_script_option_Ur =
#include "h8300hms.x"
;
static char *h8300hms_script_option_r =
#include "h8300hms.x"
;
static char *h8300hms_get_script()
{
extern ld_config_type config;
if (config.relocateable_output == true &&
config.build_constructors == true) {
return h8300hms_script_option_Ur;
}
if (config.relocateable_output) {
return h8300hms_script_option_r;
}
return h8300hms_script;
}
struct ld_emulation_xfer_struct ld_h8300hms_emulation =
{
h8300hms_before_parse,
syslib_default,
hll_default,
after_parse_default,
after_allocation_default,
set_output_arch_default,
ldemul_default_target,
before_allocation_default,
h8300hms_get_script,
"h8300hms"
};
EOF

31
ld/h8300hms.sc-sh Executable file
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cat <<EOF
OUTPUT_FORMAT(${OUTPUT_FORMAT})
OUTPUT_ARCH(${ARCH})
MEMORY {
rom : o = 0x0000, l = 0x7fe0
duart : o = 0x7fe0, l = 16
ram : o = 0x8000, l = 29k
hmsram: o = 0xfb80, l = 512
}
SECTIONS
{
.text :
{
*(.text)
*(.strings)
} > ram
.data :
{
*(.data)
} > ram
.bss :
{
${RELOCATING+ _bss_start = .}
*(.bss)
*(COMMON)
${RELOCATING+ _end = .}
} >ram
}
EOF

23
ld/i960.sc-sh Executable file
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cat <<EOF
SECTIONS
{
.text :
{
${GLD_STYLE+ CREATE_OBJECT_SYMBOLS}
*(.text)
${RELOCATING+ _etext = .}
}
.data :
{
*(.data)
${RELOCATING+ _edata = .}
}
.bss :
{
${RELOCATING+ _bss_start = .}
*(.bss)
*(COMMON)
${RELOCATING+ _end = .}
}
}
EOF

287
ld/lnk960.em Normal file
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cat >ld__${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
}
/* The default script if none is offered */
static char *lnk960_script =
#include "lnk960.x"
;
static char *lnk960_script_relocateable =
#include "lnk960.xr"
;
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,
"lnk960",
""
};
EOF

41
ld/m88kbcs.sc-sh Executable file
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cat <<EOF
TARGET(m88kbcs)
OUTPUT_FORMAT(m88kbcs)
OUTPUT_ARCH(${arch})
ENTRY(__start)
${RELOCATING+${LIB_SEARCH_DIRS}}
SECTIONS
{
.text ${RELOCATING+ 0x10000 + SIZEOF_HEADERS} :
{
CREATE_OBJECT_SYMBOLS
${RELOCATING+ __.text.start = .}
${RELOCATING+ __.init.start = .}
${RELOCATING+ LONG(0xf400c001)}
${RELOCATING+ __.init.end = .}
*(.text)
${RELOCATING+ __.tdesc_start = .}
${RELOCATING+ *(.tdesc)}
${RELOCATING+ __.text_end = .}
${RELOCATING+ __.initp.start = .}
${RELOCATING+ __.initp.end =.}
${RELOCATING+_etext =.}
}
.data ${RELOCATING+ SIZEOF(.text) + ADDR(.text) + 0x400000} :
{
*(.data)
${CONSTRUCTING+CONSTRUCTORS}
*(.comment)
${RELOCATING+_edata = .}
}
.bss ${RELOCATING+ SIZEOF(.data) + ADDR(.data)} :
{
*(.bss)
*(COMMON)
${RELOCATING+ _end = .}
${RELOCATING+ __end = .}
}
}
EOF

74
ld/vanilla.em Normal file
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cat >ld__${EMULATION_NAME}.c <<EOF
/* A vanilla emulation with no defaults
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. */
#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 vanilla_before_parse()
{
}
static void
vanilla_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 *vanilla_get_script()
{
return "";
}
struct ld_emulation_xfer_struct ld_vanilla_emulation =
{
vanilla_before_parse,
syslib_default,
hll_default,
after_parse_default,
after_allocation_default,
vanilla_set_output_arch,
ldemul_default_target,
before_allocation_default,
vanilla_get_script,
"vanilla",
"a.out-sunos-big"
};
EOF

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# Nothing to do.