ld/emultempl/elf.em

   1 # This shell script emits a C file. -*- C -*-
   2 # It does some substitutions.
   3 test -z "${ELFSIZE}" && ELFSIZE=32
   4 if [ -z "$MACHINE" ]; then
   5   OUTPUT_ARCH=${ARCH}
   6 else
   7   OUTPUT_ARCH=${ARCH}:${MACHINE}
   8 fi
   9 fragment <<EOF
  10 /* This file is is generated by a shell script.  DO NOT EDIT! */
  11
  12 /* ${ELFSIZE} bit ELF emulation code for ${EMULATION_NAME}
  13    Copyright (C) 1991-2024 Free Software Foundation, Inc.
  14    Written by Steve Chamberlain <sac@cygnus.com>
  15    ELF support by Ian Lance Taylor <ian@cygnus.com>
  16
  17    This file is part of the GNU Binutils.
  18
  19    This program is free software; you can redistribute it and/or modify
  20    it under the terms of the GNU General Public License as published by
  21    the Free Software Foundation; either version 3 of the License, or
  22    (at your option) any later version.
  23
  24    This program is distributed in the hope that it will be useful,
  25    but WITHOUT ANY WARRANTY; without even the implied warranty of
  26    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  27    GNU General Public License for more details.
  28
  29    You should have received a copy of the GNU General Public License
  30    along with this program; if not, write to the Free Software
  31    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  32    MA 02110-1301, USA.  */
  33
  34 #define TARGET_IS_${EMULATION_NAME}
  35
  36 #include "sysdep.h"
  37 #include "bfd.h"
  38 #include "libiberty.h"
  39 #include "getopt.h"
  40 #include "bfdlink.h"
  41 #include "ctf-api.h"
  42 #include "ld.h"
  43 #include "ldmain.h"
  44 #include "ldmisc.h"
  45 #include "ldexp.h"
  46 #include "ldlang.h"
  47 #include "ldfile.h"
  48 #include "ldlex.h"
  49 #include "ldemul.h"
  50 #include <ldgram.h>
  51 #include "elf-bfd.h"
  52 #include "ldelf.h"
  53 #include "ldelfgen.h"
  54
  55 /* Declare functions used by various EXTRA_EM_FILEs.  */
  56 static void gld${EMULATION_NAME}_before_parse (void);
  57 static void gld${EMULATION_NAME}_before_plugin_all_symbols_read
  58   (void);
  59 static void gld${EMULATION_NAME}_after_open (void);
  60 static void gld${EMULATION_NAME}_before_allocation (void);
  61 static void gld${EMULATION_NAME}_after_allocation (void);
  62 EOF
  63
  64 # Import any needed special functions and/or overrides.
  65 #
  66 source_em ${srcdir}/emultempl/elf-generic.em
  67 if test -n "$EXTRA_EM_FILE" ; then
  68   source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
  69 fi
  70
  71 # Functions in this file can be overridden by setting the LDEMUL_* shell
  72 # variables.  If the name of the overriding function is the same as is
  73 # defined in this file, then don't output this file's version.
  74 # If a different overriding name is given then output the standard function
  75 # as presumably it is called from the overriding function.
  76 #
  77 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
  78 fragment <<EOF
  79
  80 static void
  81 gld${EMULATION_NAME}_before_parse (void)
  82 {
  83   ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
  84   input_flags.dynamic = ${DYNAMIC_LINK-true};
  85   config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo true ; else echo false ; fi`;
  86   config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo true ; else echo false ; fi`;
  87   link_info.check_relocs_after_open_input = true;
  88 EOF
  89 if test -n "$COMMONPAGESIZE"; then
  90 fragment <<EOF
  91   link_info.relro = DEFAULT_LD_Z_RELRO;
  92 EOF
  93 fi
  94 fragment <<EOF
  95   link_info.separate_code = DEFAULT_LD_Z_SEPARATE_CODE;
  96   link_info.warn_execstack = DEFAULT_LD_WARN_EXECSTACK;
  97   link_info.no_warn_rwx_segments = ! DEFAULT_LD_WARN_RWX_SEGMENTS;
  98   link_info.default_execstack = DEFAULT_LD_EXECSTACK;
  99   link_info.error_execstack = DEFAULT_LD_ERROR_EXECSTACK;
 100   link_info.warn_is_error_for_rwx_segments = DEFAULT_LD_ERROR_RWX_SEGMENTS;
 101 }
 102
 103 EOF
 104 fi
 105
 106 fragment <<EOF
 107
 108 /* These variables are used to implement target options */
 109
 110 static char *audit; /* colon (typically) separated list of libs */
 111 static char *depaudit; /* colon (typically) separated list of libs */
 112
 113 EOF
 114
 115 if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
 116
 117   IS_LINUX_TARGET=false
 118   IS_FREEBSD_TARGET=false
 119   case ${target} in
 120     *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
 121       IS_LINUX_TARGET=true ;;
 122     *-*-freebsd* | *-*-dragonfly*)
 123       IS_FREEBSD_TARGET=true ;;
 124   esac
 125   IS_LIBPATH=false
 126   if test "x${USE_LIBPATH}" = xyes; then
 127     IS_LIBPATH=true
 128   fi
 129   IS_NATIVE=false
 130   if test "x${NATIVE}" = xyes; then
 131     IS_NATIVE=true
 132   fi
 133
 134 fragment <<EOF
 135
 136 /* This is called before calling plugin 'all symbols read' hook.  */
 137
 138 static void
 139 gld${EMULATION_NAME}_before_plugin_all_symbols_read (void)
 140 {
 141   ldelf_before_plugin_all_symbols_read ($IS_LIBPATH, $IS_NATIVE,
 142                                         $IS_LINUX_TARGET,
 143                                         $IS_FREEBSD_TARGET,
 144                                         $ELFSIZE, "$prefix");
 145 }
 146
 147 /* This is called after all the input files have been opened.  */
 148
 149 static void
 150 gld${EMULATION_NAME}_after_open (void)
 151 {
 152   ldelf_after_open ($IS_LIBPATH, $IS_NATIVE,
 153                     $IS_LINUX_TARGET, $IS_FREEBSD_TARGET, $ELFSIZE, "$prefix");
 154 }
 155
 156 EOF
 157 fi
 158
 159 if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
 160   if test x"${ELF_INTERPRETER_NAME}" = x; then
 161     ELF_INTERPRETER_NAME=NULL
 162   fi
 163 fragment <<EOF
 164
 165 /* This is called after the sections have been attached to output
 166    sections, but before any sizes or addresses have been set.  */
 167
 168 static void
 169 gld${EMULATION_NAME}_before_allocation (void)
 170 {
 171   ldelf_before_allocation (audit, depaudit, ${ELF_INTERPRETER_NAME});
 172 }
 173
 174 EOF
 175 fi
 176
 177 if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then
 178 fragment <<EOF
 179
 180 static void
 181 gld${EMULATION_NAME}_after_allocation (void)
 182 {
 183   int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info);
 184
 185   if (need_layout < 0)
 186     einfo (_("%X%P: .eh_frame/.stab edit: %E\n"));
 187   else
 188     ldelf_map_segments (need_layout);
 189 }
 190 EOF
 191 fi
 192
 193 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
 194 fragment <<EOF
 195
 196 static char *
 197 gld${EMULATION_NAME}_get_script (int *isfile)
 198 EOF
 199
 200 if test x"$COMPILE_IN" = xyes
 201 then
 202 # Scripts compiled in.
 203
 204 # sed commands to quote an ld script as a C string.
 205 sc="-f ${srcdir}/emultempl/stringify.sed"
 206
 207 fragment <<EOF
 208 {
 209   *isfile = 0;
 210
 211   if (bfd_link_relocatable (&link_info) && config.build_constructors)
 212     return
 213 EOF
 214 sed $sc ldscripts/${EMULATION_NAME}.xu                  >> e${EMULATION_NAME}.c
 215 echo '  ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
 216 sed $sc ldscripts/${EMULATION_NAME}.xr                  >> e${EMULATION_NAME}.c
 217 echo '  ; else if (!config.text_read_only) return'      >> e${EMULATION_NAME}.c
 218 sed $sc ldscripts/${EMULATION_NAME}.xbn                 >> e${EMULATION_NAME}.c
 219 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
 220 echo '  ; else if (!config.magic_demand_paged) return'  >> e${EMULATION_NAME}.c
 221 sed $sc ldscripts/${EMULATION_NAME}.xn                  >> e${EMULATION_NAME}.c
 222 fi
 223 if test -n "$GENERATE_PIE_SCRIPT" ; then
 224 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 225 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 226 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 227 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 228 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 229 sed $sc ldscripts/${EMULATION_NAME}.xdwe                >> e${EMULATION_NAME}.c
 230 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 231 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 232 echo '             && link_info.relro'                  >> e${EMULATION_NAME}.c
 233 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 234 sed $sc ldscripts/${EMULATION_NAME}.xdw                 >> e${EMULATION_NAME}.c
 235 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 236 echo '  ; else if (bfd_link_pie (&link_info)'          >> e${EMULATION_NAME}.c
 237 echo '             && link_info.combreloc'             >> e${EMULATION_NAME}.c
 238 echo '             && link_info.separate_code'         >> e${EMULATION_NAME}.c
 239 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 240 sed $sc ldscripts/${EMULATION_NAME}.xdceo              >> e${EMULATION_NAME}.c
 241 fi
 242 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 243 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 244 echo '             && link_info.combreloc) return'      >> e${EMULATION_NAME}.c
 245 sed $sc ldscripts/${EMULATION_NAME}.xdce                >> e${EMULATION_NAME}.c
 246 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 247 echo '  ; else if (bfd_link_pie (&link_info)'          >> e${EMULATION_NAME}.c
 248 echo '             && link_info.combreloc'             >> e${EMULATION_NAME}.c
 249 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 250 sed $sc ldscripts/${EMULATION_NAME}.xdco               >> e${EMULATION_NAME}.c
 251 fi
 252 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 253 echo '             && link_info.combreloc) return'      >> e${EMULATION_NAME}.c
 254 sed $sc ldscripts/${EMULATION_NAME}.xdc                 >> e${EMULATION_NAME}.c
 255 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 256 echo '  ; else if (bfd_link_pie (&link_info)'          >> e${EMULATION_NAME}.c
 257 echo '             && link_info.separate_code'         >> e${EMULATION_NAME}.c
 258 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 259 sed $sc ldscripts/${EMULATION_NAME}.xdeo               >> e${EMULATION_NAME}.c
 260 fi
 261 fi
 262 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 263 echo '             && link_info.separate_code) return'  >> e${EMULATION_NAME}.c
 264 sed $sc ldscripts/${EMULATION_NAME}.xde                 >> e${EMULATION_NAME}.c
 265 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 266 echo '  ; else if (bfd_link_pie (&link_info)'          >> e${EMULATION_NAME}.c
 267 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 268 sed $sc ldscripts/${EMULATION_NAME}.xdo                >> e${EMULATION_NAME}.c
 269 fi
 270 echo '  ; else if (bfd_link_pie (&link_info)) return'   >> e${EMULATION_NAME}.c
 271 sed $sc ldscripts/${EMULATION_NAME}.xd                  >> e${EMULATION_NAME}.c
 272 fi
 273 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
 274 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 275 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 276 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 277 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 278 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 279 sed $sc ldscripts/${EMULATION_NAME}.xswe                >> e${EMULATION_NAME}.c
 280 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 281 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 282 echo '             && link_info.relro'                  >> e${EMULATION_NAME}.c
 283 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 284 sed $sc ldscripts/${EMULATION_NAME}.xsw                 >> e${EMULATION_NAME}.c
 285 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 286 echo '  ; else if (bfd_link_dll (&link_info)'          >> e${EMULATION_NAME}.c
 287 echo '             && link_info.combreloc'             >> e${EMULATION_NAME}.c
 288 echo '             && link_info.separate_code'         >> e${EMULATION_NAME}.c
 289 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 290 sed $sc ldscripts/${EMULATION_NAME}.xsceo              >> e${EMULATION_NAME}.c
 291 fi
 292 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 293 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 294 echo '             && link_info.separate_code) return'  >> e${EMULATION_NAME}.c
 295 sed $sc ldscripts/${EMULATION_NAME}.xsce                        >> e${EMULATION_NAME}.c
 296 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 297 echo '  ; else if (bfd_link_dll (&link_info)'          >> e${EMULATION_NAME}.c
 298 echo '             && link_info.combreloc'             >> e${EMULATION_NAME}.c
 299 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 300 sed $sc ldscripts/${EMULATION_NAME}.xsco               >> e${EMULATION_NAME}.c
 301 fi
 302 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 303 echo '             && link_info.combreloc) return'      >> e${EMULATION_NAME}.c
 304 sed $sc ldscripts/${EMULATION_NAME}.xsc                 >> e${EMULATION_NAME}.c
 305 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 306 echo '  ; else if (bfd_link_dll (&link_info)'          >> e${EMULATION_NAME}.c
 307 echo '             && link_info.separate_code'         >> e${EMULATION_NAME}.c
 308 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 309 sed $sc ldscripts/${EMULATION_NAME}.xseo               >> e${EMULATION_NAME}.c
 310 fi
 311 fi
 312 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 313 echo '             && link_info.separate_code) return'  >> e${EMULATION_NAME}.c
 314 sed $sc ldscripts/${EMULATION_NAME}.xse                 >> e${EMULATION_NAME}.c
 315 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 316 echo '  ; else if (bfd_link_dll (&link_info)'          >> e${EMULATION_NAME}.c
 317 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 318 sed $sc ldscripts/${EMULATION_NAME}.xso               >> e${EMULATION_NAME}.c
 319 fi
 320 echo '  ; else if (bfd_link_dll (&link_info)) return'   >> e${EMULATION_NAME}.c
 321 sed $sc ldscripts/${EMULATION_NAME}.xs                  >> e${EMULATION_NAME}.c
 322 fi
 323 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 324 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 325 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 326 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 327 sed $sc ldscripts/${EMULATION_NAME}.xwe                 >> e${EMULATION_NAME}.c
 328 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 329 echo '             && link_info.relro'                  >> e${EMULATION_NAME}.c
 330 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 331 sed $sc ldscripts/${EMULATION_NAME}.xw                  >> e${EMULATION_NAME}.c
 332 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 333 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 334 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 335 echo '             && link_info.relro) return'          >> e${EMULATION_NAME}.c
 336 sed $sc ldscripts/${EMULATION_NAME}.xceo                >> e${EMULATION_NAME}.c
 337 fi
 338 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 339 echo '             && link_info.separate_code) return'  >> e${EMULATION_NAME}.c
 340 sed $sc ldscripts/${EMULATION_NAME}.xce                 >> e${EMULATION_NAME}.c
 341 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 342 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 343 echo '             && link_info.relro) return'          >> e${EMULATION_NAME}.c
 344 sed $sc ldscripts/${EMULATION_NAME}.xco                 >> e${EMULATION_NAME}.c
 345 fi
 346 echo '  ; else if (link_info.combreloc) return'         >> e${EMULATION_NAME}.c
 347 sed $sc ldscripts/${EMULATION_NAME}.xc                  >> e${EMULATION_NAME}.c
 348 fi
 349 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 350 echo '  ; else if (link_info.separate_code'             >> e${EMULATION_NAME}.c
 351 echo '             && link_info.relro) return'          >> e${EMULATION_NAME}.c
 352 sed $sc ldscripts/${EMULATION_NAME}.xeo                 >> e${EMULATION_NAME}.c
 353 fi
 354 echo '  ; else if (link_info.separate_code) return'     >> e${EMULATION_NAME}.c
 355 sed $sc ldscripts/${EMULATION_NAME}.xe                  >> e${EMULATION_NAME}.c
 356 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 357 echo '  ; else if (link_info.relro) return'             >> e${EMULATION_NAME}.c
 358 sed $sc ldscripts/${EMULATION_NAME}.xo                  >> e${EMULATION_NAME}.c
 359 fi
 360 echo '  ; else return'                                  >> e${EMULATION_NAME}.c
 361 sed $sc ldscripts/${EMULATION_NAME}.x                   >> e${EMULATION_NAME}.c
 362 echo '; }'                                              >> e${EMULATION_NAME}.c
 363
 364 else
 365 # Scripts read from the filesystem.
 366
 367 fragment <<EOF
 368 {
 369   *isfile = 1;
 370
 371   if (bfd_link_relocatable (&link_info) && config.build_constructors)
 372     return "ldscripts/${EMULATION_NAME}.xu";
 373   else if (bfd_link_relocatable (&link_info))
 374     return "ldscripts/${EMULATION_NAME}.xr";
 375   else if (!config.text_read_only)
 376     return "ldscripts/${EMULATION_NAME}.xbn";
 377 EOF
 378 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
 379 else
 380 fragment <<EOF
 381   else if (!config.magic_demand_paged)
 382     return "ldscripts/${EMULATION_NAME}.xn";
 383 EOF
 384 fi
 385 if test -n "$GENERATE_PIE_SCRIPT" ; then
 386 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 387 fragment <<EOF
 388   else if (bfd_link_pie (&link_info)
 389            && link_info.combreloc
 390            && link_info.relro
 391            && (link_info.flags & DF_BIND_NOW))
 392     {
 393       if (link_info.separate_code)
 394         return "ldscripts/${EMULATION_NAME}.xdwe";
 395       else
 396         return "ldscripts/${EMULATION_NAME}.xdw";
 397     }
 398 EOF
 399 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 400 fragment <<EOF
 401   else if (bfd_link_pie (&link_info)
 402            && link_info.combreloc
 403            && link_info.relro)
 404     {
 405       if (link_info.separate_code)
 406         return "ldscripts/${EMULATION_NAME}.xdceo";
 407       else
 408         return "ldscripts/${EMULATION_NAME}.xdco";
 409     }
 410 EOF
 411 fi
 412 fragment <<EOF
 413   else if (bfd_link_pie (&link_info)
 414            && link_info.combreloc)
 415     {
 416       if (link_info.separate_code)
 417         return "ldscripts/${EMULATION_NAME}.xdce";
 418       else
 419         return "ldscripts/${EMULATION_NAME}.xdc";
 420     }
 421 EOF
 422 fi
 423 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 424 fragment <<EOF
 425   else if (bfd_link_pie (&link_info)
 426            && link_info.relro)
 427     {
 428       if (link_info.separate_code)
 429         return "ldscripts/${EMULATION_NAME}.xdeo";
 430       else
 431         return "ldscripts/${EMULATION_NAME}.xdo";
 432     }
 433 EOF
 434 fi
 435 fragment <<EOF
 436   else if (bfd_link_pie (&link_info))
 437     {
 438       if (link_info.separate_code)
 439         return "ldscripts/${EMULATION_NAME}.xde";
 440       else
 441         return "ldscripts/${EMULATION_NAME}.xd";
 442     }
 443 EOF
 444 fi
 445 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
 446 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 447 fragment <<EOF
 448   else if (bfd_link_dll (&link_info) && link_info.combreloc
 449            && link_info.relro && (link_info.flags & DF_BIND_NOW))
 450     {
 451       if (link_info.separate_code)
 452         return "ldscripts/${EMULATION_NAME}.xswe";
 453       else
 454         return "ldscripts/${EMULATION_NAME}.xsw";
 455     }
 456 EOF
 457 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 458 fragment <<EOF
 459   else if (bfd_link_dll (&link_info)
 460            && link_info.combreloc
 461            && link_info.relro)
 462     {
 463       if (link_info.separate_code)
 464         return "ldscripts/${EMULATION_NAME}.xsceo";
 465       else
 466         return "ldscripts/${EMULATION_NAME}.xsco";
 467     }
 468 EOF
 469 fi
 470 fragment <<EOF
 471   else if (bfd_link_dll (&link_info) && link_info.combreloc)
 472     {
 473       if (link_info.separate_code)
 474         return "ldscripts/${EMULATION_NAME}.xsce";
 475       else
 476         return "ldscripts/${EMULATION_NAME}.xsc";
 477     }
 478 EOF
 479 fi
 480 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 481 fragment <<EOF
 482   else if (bfd_link_dll (&link_info)
 483            && link_info.relro)
 484     {
 485       if (link_info.separate_code)
 486         return "ldscripts/${EMULATION_NAME}.xseo";
 487       else
 488         return "ldscripts/${EMULATION_NAME}.xso";
 489     }
 490 EOF
 491 fi
 492 fragment <<EOF
 493   else if (bfd_link_dll (&link_info))
 494     {
 495       if (link_info.separate_code)
 496         return "ldscripts/${EMULATION_NAME}.xse";
 497       else
 498         return "ldscripts/${EMULATION_NAME}.xs";
 499     }
 500 EOF
 501 fi
 502 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 503 fragment <<EOF
 504   else if (link_info.combreloc && link_info.relro
 505            && (link_info.flags & DF_BIND_NOW))
 506     {
 507       if (link_info.separate_code)
 508         return "ldscripts/${EMULATION_NAME}.xwe";
 509       else
 510         return "ldscripts/${EMULATION_NAME}.xw";
 511     }
 512 EOF
 513 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 514 fragment <<EOF
 515   else if (link_info.combreloc
 516            && link_info.relro)
 517     {
 518       if (link_info.separate_code)
 519         return "ldscripts/${EMULATION_NAME}.xceo";
 520       else
 521         return "ldscripts/${EMULATION_NAME}.xco";
 522     }
 523 EOF
 524 fi
 525 fragment <<EOF
 526   else if (link_info.combreloc)
 527     {
 528       if (link_info.separate_code)
 529         return "ldscripts/${EMULATION_NAME}.xce";
 530       else
 531         return "ldscripts/${EMULATION_NAME}.xc";
 532     }
 533 EOF
 534 fi
 535 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 536 fragment <<EOF
 537   else if (link_info.relro)
 538     {
 539       if (link_info.separate_code)
 540         return "ldscripts/${EMULATION_NAME}.xeo";
 541       else
 542         return "ldscripts/${EMULATION_NAME}.xo";
 543     }
 544 EOF
 545 fi
 546 fragment <<EOF
 547   else
 548     {
 549       if (link_info.separate_code)
 550         return "ldscripts/${EMULATION_NAME}.xe";
 551       else
 552         return "ldscripts/${EMULATION_NAME}.x";
 553     }
 554 }
 555
 556 EOF
 557 fi
 558 fi
 559
 560 fragment <<EOF
 561
 562 static void
 563 gld${EMULATION_NAME}_add_options
 564   (int ns, char **shortopts, int nl, struct option **longopts,
 565    int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
 566 {
 567 EOF
 568 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 569 fragment <<EOF
 570   static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:";
 571 EOF
 572 else
 573 fragment <<EOF
 574   static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
 575 EOF
 576 fi
 577 fragment <<EOF
 578   static const struct option xtra_long[] = {
 579 EOF
 580 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 581 fragment <<EOF
 582     {"audit", required_argument, NULL, OPTION_AUDIT},
 583     {"Bgroup", no_argument, NULL, OPTION_GROUP},
 584 EOF
 585 fi
 586 fragment <<EOF
 587     {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
 588     {"package-metadata", optional_argument, NULL, OPTION_PACKAGE_METADATA},
 589     {"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG},
 590 EOF
 591 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 592 fragment <<EOF
 593     {"depaudit", required_argument, NULL, 'P'},
 594     {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
 595     {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
 596     {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
 597     {"no-eh-frame-hdr", no_argument, NULL, OPTION_NO_EH_FRAME_HDR},
 598     {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
 599     {"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
 600 EOF
 601 fi
 602 if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
 603 fragment <<EOF
 604     $PARSE_AND_LIST_LONGOPTS
 605 EOF
 606 fi
 607 fragment <<EOF
 608     {NULL, no_argument, NULL, 0}
 609   };
 610
 611   *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
 612   memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
 613   *longopts = (struct option *)
 614     xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
 615   memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
 616 }
 617
 618 #define DEFAULT_BUILD_ID_STYLE  "sha1"
 619
 620 static bool
 621 gld${EMULATION_NAME}_handle_option (int optc)
 622 {
 623   switch (optc)
 624     {
 625     default:
 626       return false;
 627
 628     case OPTION_BUILD_ID:
 629       free ((char *) ldelf_emit_note_gnu_build_id);
 630       ldelf_emit_note_gnu_build_id = NULL;
 631       if (optarg == NULL)
 632         optarg = DEFAULT_BUILD_ID_STYLE;
 633       if (strcmp (optarg, "none"))
 634         ldelf_emit_note_gnu_build_id = xstrdup (optarg);
 635       break;
 636
 637     case OPTION_PACKAGE_METADATA:
 638       free ((char *) ldelf_emit_note_fdo_package_metadata);
 639       ldelf_emit_note_fdo_package_metadata = NULL;
 640       if (optarg != NULL && strlen(optarg) > 0)
 641         ldelf_emit_note_fdo_package_metadata = xstrdup (optarg);
 642       break;
 643
 644     case OPTION_COMPRESS_DEBUG:
 645       config.compress_debug = bfd_get_compression_algorithm (optarg);
 646       if (strcasecmp (optarg, "zstd") == 0)
 647         {
 648 #ifndef HAVE_ZSTD
 649           if (config.compress_debug == COMPRESS_DEBUG_ZSTD)
 650             einfo (_ ("%F%P: --compress-debug-sections=zstd: ld is not built "
 651                   "with zstd support\n"));
 652 #endif
 653         }
 654       if (config.compress_debug == COMPRESS_UNKNOWN)
 655         einfo (_("%F%P: invalid --compress-debug-sections option: \`%s'\n"),
 656                optarg);
 657       break;
 658 EOF
 659
 660 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 661 fragment <<EOF
 662     case OPTION_AUDIT:
 663         ldelf_append_to_separated_string (&audit, optarg);
 664         break;
 665
 666     case 'P':
 667         ldelf_append_to_separated_string (&depaudit, optarg);
 668         break;
 669
 670     case OPTION_DISABLE_NEW_DTAGS:
 671       link_info.new_dtags = false;
 672       break;
 673
 674     case OPTION_ENABLE_NEW_DTAGS:
 675       link_info.new_dtags = true;
 676       break;
 677
 678     case OPTION_EH_FRAME_HDR:
 679       link_info.eh_frame_hdr_type = DWARF2_EH_HDR;
 680       break;
 681
 682     case OPTION_NO_EH_FRAME_HDR:
 683       link_info.eh_frame_hdr_type = 0;
 684       break;
 685
 686     case OPTION_GROUP:
 687       link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
 688       /* Groups must be self-contained.  */
 689       link_info.unresolved_syms_in_objects = RM_DIAGNOSE;
 690       link_info.unresolved_syms_in_shared_libs = RM_DIAGNOSE;
 691       break;
 692
 693     case OPTION_EXCLUDE_LIBS:
 694       add_excluded_libs (optarg);
 695       break;
 696
 697     case OPTION_HASH_STYLE:
 698       link_info.emit_hash = false;
 699       link_info.emit_gnu_hash = false;
 700       if (strcmp (optarg, "sysv") == 0)
 701         link_info.emit_hash = true;
 702       else if (strcmp (optarg, "gnu") == 0)
 703         link_info.emit_gnu_hash = true;
 704       else if (strcmp (optarg, "both") == 0)
 705         {
 706           link_info.emit_hash = true;
 707           link_info.emit_gnu_hash = true;
 708         }
 709       else
 710         einfo (_("%F%P: invalid hash style \`%s'\n"), optarg);
 711       break;
 712
 713 EOF
 714 fi
 715 fragment <<EOF
 716     case 'z':
 717       if (strcmp (optarg, "defs") == 0)
 718         link_info.unresolved_syms_in_objects = RM_DIAGNOSE;
 719       else if (strcmp (optarg, "undefs") == 0)
 720         link_info.unresolved_syms_in_objects = RM_IGNORE;
 721       else if (strcmp (optarg, "muldefs") == 0)
 722         link_info.allow_multiple_definition = true;
 723       else if (startswith (optarg, "max-page-size="))
 724         {
 725           char *end;
 726
 727           link_info.maxpagesize = strtoul (optarg + 14, &end, 0);
 728           if (*end
 729               || (link_info.maxpagesize & (link_info.maxpagesize - 1)) != 0)
 730             einfo (_("%F%P: invalid maximum page size \`%s'\n"),
 731                    optarg + 14);
 732           link_info.maxpagesize_is_set = true;
 733         }
 734       else if (startswith (optarg, "common-page-size="))
 735         {
 736           char *end;
 737           link_info.commonpagesize = strtoul (optarg + 17, &end, 0);
 738           if (*end
 739               || (link_info.commonpagesize & (link_info.commonpagesize - 1)) != 0)
 740             einfo (_("%F%P: invalid common page size \`%s'\n"),
 741                    optarg + 17);
 742           link_info.commonpagesize_is_set = true;
 743         }
 744       else if (startswith (optarg, "stack-size="))
 745         {
 746           char *end;
 747           link_info.stacksize = strtoul (optarg + 11, &end, 0);
 748           if (*end || link_info.stacksize < 0)
 749             einfo (_("%F%P: invalid stack size \`%s'\n"), optarg + 11);
 750           if (!link_info.stacksize)
 751             /* Use -1 for explicit no-stack, because zero means
 752                'default'.   */
 753             link_info.stacksize = -1;
 754         }
 755       else if (strcmp (optarg, "execstack") == 0)
 756         {
 757           link_info.execstack = true;
 758           link_info.noexecstack = false;
 759         }
 760       else if (strcmp (optarg, "noexecstack") == 0)
 761         {
 762           link_info.noexecstack = true;
 763           link_info.execstack = false;
 764         }
 765       else if (strcmp (optarg, "unique-symbol") == 0)
 766         link_info.unique_symbol = true;
 767       else if (strcmp (optarg, "nounique-symbol") == 0)
 768         link_info.unique_symbol = false;
 769       else if (strcmp (optarg, "globalaudit") == 0)
 770         {
 771           link_info.flags_1 |= DF_1_GLOBAUDIT;
 772         }
 773       else if (startswith (optarg, "start-stop-gc"))
 774         link_info.start_stop_gc = true;
 775       else if (startswith (optarg, "nostart-stop-gc"))
 776         link_info.start_stop_gc = false;
 777       else if (startswith (optarg, "start-stop-visibility="))
 778         {
 779           if (strcmp (optarg, "start-stop-visibility=default") == 0)
 780             link_info.start_stop_visibility = STV_DEFAULT;
 781           else if (strcmp (optarg, "start-stop-visibility=internal") == 0)
 782             link_info.start_stop_visibility = STV_INTERNAL;
 783           else if (strcmp (optarg, "start-stop-visibility=hidden") == 0)
 784             link_info.start_stop_visibility = STV_HIDDEN;
 785           else if (strcmp (optarg, "start-stop-visibility=protected") == 0)
 786             link_info.start_stop_visibility = STV_PROTECTED;
 787           else
 788             einfo (_("%F%P: invalid visibility in \`-z %s'; "
 789                      "must be default, internal, hidden, or protected"),
 790                    optarg);
 791         }
 792       else if (strcmp (optarg, "sectionheader") == 0)
 793         config.no_section_header = false;
 794       else if (strcmp (optarg, "nosectionheader") == 0)
 795         config.no_section_header = true;
 796 EOF
 797
 798 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 799 fragment <<EOF
 800       else if (strcmp (optarg, "global") == 0)
 801         link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL;
 802       else if (strcmp (optarg, "initfirst") == 0)
 803         link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
 804       else if (strcmp (optarg, "interpose") == 0)
 805         link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
 806       else if (strcmp (optarg, "loadfltr") == 0)
 807         link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
 808       else if (strcmp (optarg, "nodefaultlib") == 0)
 809         link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
 810       else if (strcmp (optarg, "nodelete") == 0)
 811         link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
 812       else if (strcmp (optarg, "nodlopen") == 0)
 813         link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
 814       else if (strcmp (optarg, "nodump") == 0)
 815         link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
 816       else if (strcmp (optarg, "now") == 0)
 817         {
 818           link_info.flags |= (bfd_vma) DF_BIND_NOW;
 819           link_info.flags_1 |= (bfd_vma) DF_1_NOW;
 820         }
 821       else if (strcmp (optarg, "lazy") == 0)
 822         {
 823           link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
 824           link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
 825         }
 826       else if (strcmp (optarg, "origin") == 0)
 827         {
 828           link_info.flags |= (bfd_vma) DF_ORIGIN;
 829           link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
 830         }
 831       else if (strcmp (optarg, "unique") == 0)
 832         link_info.gnu_flags_1 |= (bfd_vma) DF_GNU_1_UNIQUE;
 833       else if (strcmp (optarg, "nounique") == 0)
 834         link_info.gnu_flags_1 &= ~(bfd_vma) DF_GNU_1_UNIQUE;
 835       else if (strcmp (optarg, "combreloc") == 0)
 836         link_info.combreloc = true;
 837       else if (strcmp (optarg, "nocombreloc") == 0)
 838         link_info.combreloc = false;
 839       else if (strcmp (optarg, "nocopyreloc") == 0)
 840         link_info.nocopyreloc = true;
 841 EOF
 842 if test -n "$COMMONPAGESIZE"; then
 843 fragment <<EOF
 844       else if (strcmp (optarg, "relro") == 0)
 845         link_info.relro = true;
 846       else if (strcmp (optarg, "norelro") == 0)
 847         link_info.relro = false;
 848 EOF
 849 fi
 850 fragment <<EOF
 851       else if (strcmp (optarg, "separate-code") == 0)
 852         link_info.separate_code = true;
 853       else if (strcmp (optarg, "noseparate-code") == 0)
 854         link_info.separate_code = false;
 855       else if (strcmp (optarg, "common") == 0)
 856         link_info.elf_stt_common = elf_stt_common;
 857       else if (strcmp (optarg, "nocommon") == 0)
 858         link_info.elf_stt_common = no_elf_stt_common;
 859       else if (strcmp (optarg, "text") == 0)
 860         link_info.textrel_check = textrel_check_error;
 861       else if (strcmp (optarg, "notext") == 0)
 862         link_info.textrel_check = textrel_check_none;
 863       else if (strcmp (optarg, "textoff") == 0)
 864         link_info.textrel_check = textrel_check_none;
 865 EOF
 866 fi
 867
 868 if test -n "$PARSE_AND_LIST_ARGS_CASE_Z" ; then
 869 fragment <<EOF
 870  $PARSE_AND_LIST_ARGS_CASE_Z
 871 EOF
 872 fi
 873
 874 fragment <<EOF
 875       else
 876         queue_unknown_cmdline_warning ("-z %s", optarg);
 877       break;
 878 EOF
 879
 880 if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
 881 fragment <<EOF
 882  $PARSE_AND_LIST_ARGS_CASES
 883 EOF
 884 fi
 885
 886 fragment <<EOF
 887     }
 888
 889   return true;
 890 }
 891
 892 EOF
 893
 894 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
 895 gld_list_options="gld${EMULATION_NAME}_list_options"
 896 if test -n "$PARSE_AND_LIST_OPTIONS"; then
 897 fragment <<EOF
 898
 899 static void
 900 gld${EMULATION_NAME}_list_options (FILE * file)
 901 {
 902 EOF
 903
 904 if test -n "$PARSE_AND_LIST_OPTIONS" ; then
 905 fragment <<EOF
 906  $PARSE_AND_LIST_OPTIONS
 907 EOF
 908 fi
 909
 910 fragment <<EOF
 911 }
 912 EOF
 913 else
 914   gld_list_options="NULL"
 915 fi
 916
 917 if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
 918 fragment <<EOF
 919  $PARSE_AND_LIST_EPILOGUE
 920 EOF
 921 fi
 922 fi
 923
 924 LDEMUL_AFTER_PARSE=${LDEMUL_AFTER_PARSE-ldelf_after_parse}
 925 LDEMUL_BEFORE_PLUGIN_ALL_SYMBOLS_READ=${LDEMUL_BEFORE_PLUGIN_ALL_SYMBOLS_READ-gld${EMULATION_NAME}_before_plugin_all_symbols_read}
 926 LDEMUL_AFTER_OPEN=${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open}
 927 LDEMUL_BEFORE_PLACE_ORPHANS=${LDEMUL_BEFORE_PLACE_ORPHANS-ldelf_before_place_orphans}
 928 LDEMUL_AFTER_ALLOCATION=${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation}
 929 LDEMUL_SET_OUTPUT_ARCH=${LDEMUL_SET_OUTPUT_ARCH-ldelf_set_output_arch}
 930 LDEMUL_BEFORE_ALLOCATION=${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation}
 931 LDEMUL_OPEN_DYNAMIC_ARCHIVE=${LDEMUL_OPEN_DYNAMIC_ARCHIVE-ldelf_open_dynamic_archive}
 932 LDEMUL_PLACE_ORPHAN=${LDEMUL_PLACE_ORPHAN-ldelf_place_orphan}
 933 LDEMUL_ADD_OPTIONS=gld${EMULATION_NAME}_add_options
 934 LDEMUL_HANDLE_OPTION=gld${EMULATION_NAME}_handle_option
 935 LDEMUL_LIST_OPTIONS=${LDEMUL_LIST_OPTIONS-${gld_list_options}}
 936 LDEMUL_RECOGNIZED_FILE=${LDEMUL_RECOGNIZED_FILE-ldelf_load_symbols}
 937
 938 source_em ${srcdir}/emultempl/emulation.em