1/* ldemul.c -- clearing house for ld emulation states 2 Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 2000, 2002, 2003 3 Free Software Foundation, Inc. 4 5This file is part of GLD, the Gnu Linker. 6 7GLD is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 2, or (at your option) 10any later version. 11 12GLD is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GLD; see the file COPYING. If not, write to the Free 19Software Foundation, 59 Temple Place - Suite 330, Boston, MA 2002111-1307, USA. */ 21 22#include "bfd.h" 23#include "sysdep.h" 24#include "getopt.h" 25 26#include "ld.h" 27#include "ldmisc.h" 28#include "ldexp.h" 29#include "ldlang.h" 30#include "ldfile.h" 31#include "ldemul.h" 32#include "ldmain.h" 33#include "ldemul-list.h" 34 35ld_emulation_xfer_type *ld_emulation; 36 37void 38ldemul_hll (char *name) 39{ 40 ld_emulation->hll (name); 41} 42 43void 44ldemul_syslib (char *name) 45{ 46 ld_emulation->syslib (name); 47} 48 49void 50ldemul_after_parse (void) 51{ 52 ld_emulation->after_parse (); 53} 54 55void 56ldemul_before_parse (void) 57{ 58 ld_emulation->before_parse (); 59} 60 61void 62ldemul_after_open (void) 63{ 64 ld_emulation->after_open (); 65} 66 67void 68ldemul_after_allocation (void) 69{ 70 ld_emulation->after_allocation (); 71} 72 73void 74ldemul_before_allocation (void) 75{ 76 if (ld_emulation->before_allocation) 77 ld_emulation->before_allocation (); 78} 79 80void 81ldemul_set_output_arch (void) 82{ 83 ld_emulation->set_output_arch (); 84} 85 86void 87ldemul_finish (void) 88{ 89 if (ld_emulation->finish) 90 ld_emulation->finish (); 91} 92 93void 94ldemul_set_symbols (void) 95{ 96 if (ld_emulation->set_symbols) 97 ld_emulation->set_symbols (); 98} 99 100void 101ldemul_create_output_section_statements (void) 102{ 103 if (ld_emulation->create_output_section_statements) 104 ld_emulation->create_output_section_statements (); 105} 106 107char * 108ldemul_get_script (int *isfile) 109{ 110 return ld_emulation->get_script (isfile); 111} 112 113bfd_boolean 114ldemul_open_dynamic_archive (const char *arch, search_dirs_type *search, 115 lang_input_statement_type *entry) 116{ 117 if (ld_emulation->open_dynamic_archive) 118 return (*ld_emulation->open_dynamic_archive) (arch, search, entry); 119 return FALSE; 120} 121 122bfd_boolean 123ldemul_place_orphan (lang_input_statement_type *file, asection *s) 124{ 125 if (ld_emulation->place_orphan) 126 return (*ld_emulation->place_orphan) (file, s); 127 return FALSE; 128} 129 130void 131ldemul_add_options (int ns, char **shortopts, int nl, 132 struct option **longopts, int nrl, 133 struct option **really_longopts) 134{ 135 if (ld_emulation->add_options) 136 (*ld_emulation->add_options) (ns, shortopts, nl, longopts, 137 nrl, really_longopts); 138} 139 140bfd_boolean 141ldemul_handle_option (int optc) 142{ 143 if (ld_emulation->handle_option) 144 return (*ld_emulation->handle_option) (optc); 145 return FALSE; 146} 147 148bfd_boolean 149ldemul_parse_args (int argc, char **argv) 150{ 151 /* Try and use the emulation parser if there is one. */ 152 if (ld_emulation->parse_args) 153 return (*ld_emulation->parse_args) (argc, argv); 154 return FALSE; 155} 156 157/* Let the emulation code handle an unrecognized file. */ 158 159bfd_boolean 160ldemul_unrecognized_file (lang_input_statement_type *entry) 161{ 162 if (ld_emulation->unrecognized_file) 163 return (*ld_emulation->unrecognized_file) (entry); 164 return FALSE; 165} 166 167/* Let the emulation code handle a recognized file. */ 168 169bfd_boolean 170ldemul_recognized_file (lang_input_statement_type *entry) 171{ 172 if (ld_emulation->recognized_file) 173 return (*ld_emulation->recognized_file) (entry); 174 return FALSE; 175} 176 177char * 178ldemul_choose_target (int argc, char **argv) 179{ 180 return ld_emulation->choose_target (argc, argv); 181} 182 183 184/* The default choose_target function. */ 185 186char * 187ldemul_default_target (int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) 188{ 189 char *from_outside = getenv (TARGET_ENVIRON); 190 if (from_outside != (char *) NULL) 191 return from_outside; 192 return ld_emulation->target_name; 193} 194 195void 196after_parse_default (void) 197{ 198} 199 200void 201after_open_default (void) 202{ 203} 204 205void 206after_allocation_default (void) 207{ 208} 209 210void 211before_allocation_default (void) 212{ 213} 214 215void 216set_output_arch_default (void) 217{ 218 /* Set the output architecture and machine if possible. */ 219 bfd_set_arch_mach (output_bfd, 220 ldfile_output_architecture, ldfile_output_machine); 221} 222 223void 224syslib_default (char *ignore ATTRIBUTE_UNUSED) 225{ 226 info_msg (_("%S SYSLIB ignored\n")); 227} 228 229void 230hll_default (char *ignore ATTRIBUTE_UNUSED) 231{ 232 info_msg (_("%S HLL ignored\n")); 233} 234 235ld_emulation_xfer_type *ld_emulations[] = { EMULATION_LIST }; 236 237void 238ldemul_choose_mode (char *target) 239{ 240 ld_emulation_xfer_type **eptr = ld_emulations; 241 /* Ignore "gld" prefix. */ 242 if (target[0] == 'g' && target[1] == 'l' && target[2] == 'd') 243 target += 3; 244 for (; *eptr; eptr++) 245 { 246 if (strcmp (target, (*eptr)->emulation_name) == 0) 247 { 248 ld_emulation = *eptr; 249 return; 250 } 251 } 252 einfo (_("%P: unrecognised emulation mode: %s\n"), target); 253 einfo (_("Supported emulations: ")); 254 ldemul_list_emulations (stderr); 255 einfo ("%F\n"); 256} 257 258void 259ldemul_list_emulations (FILE *f) 260{ 261 ld_emulation_xfer_type **eptr = ld_emulations; 262 bfd_boolean first = TRUE; 263 264 for (; *eptr; eptr++) 265 { 266 if (first) 267 first = FALSE; 268 else 269 fprintf (f, " "); 270 fprintf (f, "%s", (*eptr)->emulation_name); 271 } 272} 273 274void 275ldemul_list_emulation_options (FILE *f) 276{ 277 ld_emulation_xfer_type **eptr; 278 int options_found = 0; 279 280 for (eptr = ld_emulations; *eptr; eptr++) 281 { 282 ld_emulation_xfer_type *emul = *eptr; 283 284 if (emul->list_options) 285 { 286 fprintf (f, "%s: \n", emul->emulation_name); 287 288 emul->list_options (f); 289 290 options_found = 1; 291 } 292 } 293 294 if (! options_found) 295 fprintf (f, _(" no emulation specific options.\n")); 296} 297 298int 299ldemul_find_potential_libraries (char *name, lang_input_statement_type *entry) 300{ 301 if (ld_emulation->find_potential_libraries) 302 return ld_emulation->find_potential_libraries (name, entry); 303 304 return 0; 305} 306 307struct bfd_elf_version_expr * 308ldemul_new_vers_pattern (struct bfd_elf_version_expr *entry) 309{ 310 if (ld_emulation->new_vers_pattern) 311 entry = (*ld_emulation->new_vers_pattern) (entry); 312 return entry; 313} 314