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- # This shell script emits a C file. -*- C -*-
- # It does some substitutions.
- cat >e${EMULATION_NAME}.c <<EOF
- /* intel coff loader emulation specific stuff
- Copyright (C) 1991, 1993 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
- #include "libiberty.h"
- #include "bfd.h"
- #include "sysdep.h"
- #include "bfdlink.h"
-
- /*#include "archures.h"*/
- #include "ld.h"
- #include "ldemul.h"
- #include "ldmisc.h"
- #include "ldexp.h"
- #include "ldlang.h"
- #include "ldfile.h"
- #include "ldmain.h"
-
- 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 *)(xmalloc(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",""), false);
- }
- }
-
- env= (char *) getenv("I960BASE");
- if ( env ) {
- ldfile_add_library_path(concat(env,"/lib",""), false);
- }
-
- 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",""), false);
- 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()
- {
- if (link_info.relocateable == 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_jx ,"JX" },
- { bfd_mach_i960_hx ,"HX" },
-
- { 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_jx ,"jx" },
- { bfd_mach_i960_hx ,"hx" },
-
- { 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 -n "$COMPILE_IN"
- then
- # Scripts compiled in.
-
- # sed commands to quote an ld script as a C string.
- sc='s/["\\]/\\&/g
- s/$/\\n\\/
- 1s/^/"/
- $s/$/n"/
- '
-
- cat >>e${EMULATION_NAME}.c <<EOF
- *isfile = 0;
-
- if (link_info.relocateable == true && config.build_constructors == true)
- return `sed "$sc" ldscripts/${EMULATION_NAME}.xu`;
- else if (link_info.relocateable == true)
- return `sed "$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/${EMULATION_NAME}.x`;
- }
- EOF
-
- else
- # Scripts read from the filesystem.
-
- cat >>e${EMULATION_NAME}.c <<EOF
- {
- *isfile = 1;
-
- if (link_info.relocateable == true && config.build_constructors == true)
- return "ldscripts/${EMULATION_NAME}.xu";
- else if (link_info.relocateable == true)
- return "ldscripts/${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/${EMULATION_NAME}.x";
- }
- EOF
-
- fi
-
- cat >>e${EMULATION_NAME}.c <<EOF
-
- struct ld_emulation_xfer_struct ld_lnk960_emulation =
- {
- lnk960_before_parse,
- lnk960_syslib,
- lnk960_hll,
- lnk960_after_parse,
- NULL, /* after_open */
- lnk960_after_allocation,
- lnk960_set_output_arch,
- lnk960_choose_target,
- lnk960_before_allocation,
- lnk960_get_script,
- "lnk960",
- ""
- };
- EOF
-