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 ${EMULATION_NAME}
  13    Copyright (C) 1991-2019 Free Software Foundation, Inc.
  14    Written by Steve Chamberlain <[email protected]>
  15    ELF support by Ian Lance Taylor <[email protected]>
  16
  17    This file is part of the GNU Binutils.
  18
  19    This program is free software; you can redistribute it and/or modify
  20    it under the terms of the GNU General Public License as published by
  21    the Free Software Foundation; either version 3 of the License, or
  22    (at your option) any later version.
  23
  24    This program is distributed in the hope that it will be useful,
  25    but WITHOUT ANY WARRANTY; without even the implied warranty of
  26    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  27    GNU General Public License for more details.
  28
  29    You should have received a copy of the GNU General Public License
  30    along with this program; if not, write to the Free Software
  31    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  32    MA 02110-1301, USA.  */
  33
  34 #define TARGET_IS_${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 "ldemul.h"
  49 #include <ldgram.h>
  50 #include "elf-bfd.h"
  51 #include "ldelf.h"
  52 #include "ldelfgen.h"
  53
  54 /* Declare functions used by various EXTRA_EM_FILEs.  */
  55 static void gld${EMULATION_NAME}_before_parse (void);
  56 static void gld${EMULATION_NAME}_after_open (void);
  57 static void gld${EMULATION_NAME}_before_allocation (void);
  58 static void gld${EMULATION_NAME}_after_allocation (void);
  59 EOF
  60
  61 # Import any needed special functions and/or overrides.
  62 #
  63 source_em ${srcdir}/emultempl/elf-generic.em
  64 if test -n "$EXTRA_EM_FILE" ; then
  65   source_em ${srcdir}/emultempl/${EXTRA_EM_FILE}.em
  66 fi
  67
  68 # Functions in this file can be overridden by setting the LDEMUL_* shell
  69 # variables.  If the name of the overriding function is the same as is
  70 # defined in this file, then don't output this file's version.
  71 # If a different overriding name is given then output the standard function
  72 # as presumably it is called from the overriding function.
  73 #
  74 if test x"$LDEMUL_BEFORE_PARSE" != xgld"$EMULATION_NAME"_before_parse; then
  75 fragment <<EOF
  76
  77 static void
  78 gld${EMULATION_NAME}_before_parse (void)
  79 {
  80   ldfile_set_output_arch ("${OUTPUT_ARCH}", bfd_arch_`echo ${ARCH} | sed -e 's/:.*//'`);
  81   input_flags.dynamic = ${DYNAMIC_LINK-TRUE};
  82   config.has_shared = `if test -n "$GENERATE_SHLIB_SCRIPT" ; then echo TRUE ; else echo FALSE ; fi`;
  83   config.separate_code = `if test "x${SEPARATE_CODE}" = xyes ; then echo TRUE ; else echo FALSE ; fi`;
  84   link_info.check_relocs_after_open_input = TRUE;
  85   link_info.relro = DEFAULT_LD_Z_RELRO;
  86   link_info.separate_code = DEFAULT_LD_Z_SEPARATE_CODE;
  87 }
  88
  89 EOF
  90 fi
  91
  92 fragment <<EOF
  93
  94 /* These variables are used to implement target options */
  95
  96 static char *audit; /* colon (typically) separated list of libs */
  97 static char *depaudit; /* colon (typically) separated list of libs */
  98
  99 EOF
 100
 101 if test x"$LDEMUL_AFTER_OPEN" != xgld"$EMULATION_NAME"_after_open; then
 102
 103   IS_LINUX_TARGET=FALSE
 104   IS_FREEBSD_TARGET=FALSE
 105   case ${target} in
 106     *-*-linux-* | *-*-k*bsd*-* | *-*-gnu*)
 107       IS_LINUX_TARGET=TRUE ;;
 108     *-*-freebsd* | *-*-dragonfly*)
 109       IS_FREEBSD_TARGET=TRUE ;;
 110   esac
 111   IS_LIBPATH=FALSE
 112   if test "x${USE_LIBPATH}" = xyes; then
 113     IS_LIBPATH=TRUE
 114   fi
 115   IS_NATIVE=FALSE
 116   if test "x${NATIVE}" = xyes; then
 117     IS_NATIVE=TRUE
 118   fi
 119
 120 fragment <<EOF
 121
 122 /* This is called after all the input files have been opened.  */
 123
 124 static void
 125 gld${EMULATION_NAME}_after_open (void)
 126 {
 127   ldelf_after_open ($IS_LIBPATH, $IS_NATIVE,
 128                     $IS_LINUX_TARGET, $IS_FREEBSD_TARGET, $ELFSIZE);
 129 }
 130
 131 EOF
 132 fi
 133
 134 if test x"$LDEMUL_BEFORE_ALLOCATION" != xgld"$EMULATION_NAME"_before_allocation; then
 135   if test x"${ELF_INTERPRETER_NAME}" = x; then
 136     ELF_INTERPRETER_NAME=NULL
 137   fi
 138 fragment <<EOF
 139
 140 /* This is called after the sections have been attached to output
 141    sections, but before any sizes or addresses have been set.  */
 142
 143 static void
 144 gld${EMULATION_NAME}_before_allocation (void)
 145 {
 146   ldelf_before_allocation (audit, depaudit, ${ELF_INTERPRETER_NAME});
 147 }
 148
 149 EOF
 150 fi
 151
 152 if test x"$LDEMUL_AFTER_ALLOCATION" != xgld"$EMULATION_NAME"_after_allocation; then
 153 fragment <<EOF
 154
 155 static void
 156 gld${EMULATION_NAME}_after_allocation (void)
 157 {
 158   int need_layout = bfd_elf_discard_info (link_info.output_bfd, &link_info);
 159
 160   if (need_layout < 0)
 161     einfo (_("%X%P: .eh_frame/.stab edit: %E\n"));
 162   else
 163     ldelf_map_segments (need_layout);
 164 }
 165 EOF
 166 fi
 167
 168 if test x"$LDEMUL_GET_SCRIPT" != xgld"$EMULATION_NAME"_get_script; then
 169 fragment <<EOF
 170
 171 static char *
 172 gld${EMULATION_NAME}_get_script (int *isfile)
 173 EOF
 174
 175 if test x"$COMPILE_IN" = xyes
 176 then
 177 # Scripts compiled in.
 178
 179 # sed commands to quote an ld script as a C string.
 180 sc="-f stringify.sed"
 181
 182 fragment <<EOF
 183 {
 184   *isfile = 0;
 185
 186   if (bfd_link_relocatable (&link_info) && config.build_constructors)
 187     return
 188 EOF
 189 sed $sc ldscripts/${EMULATION_NAME}.xu                  >> e${EMULATION_NAME}.c
 190 echo '  ; else if (bfd_link_relocatable (&link_info)) return' >> e${EMULATION_NAME}.c
 191 sed $sc ldscripts/${EMULATION_NAME}.xr                  >> e${EMULATION_NAME}.c
 192 echo '  ; else if (!config.text_read_only) return'      >> e${EMULATION_NAME}.c
 193 sed $sc ldscripts/${EMULATION_NAME}.xbn                 >> e${EMULATION_NAME}.c
 194 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then : ; else
 195 echo '  ; else if (!config.magic_demand_paged) return'  >> e${EMULATION_NAME}.c
 196 sed $sc ldscripts/${EMULATION_NAME}.xn                  >> e${EMULATION_NAME}.c
 197 fi
 198 if test -n "$GENERATE_PIE_SCRIPT" ; then
 199 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 200 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 201 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 202 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 203 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 204 sed $sc ldscripts/${EMULATION_NAME}.xdwe                >> e${EMULATION_NAME}.c
 205 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 206 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 207 echo '             && link_info.relro'                  >> e${EMULATION_NAME}.c
 208 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 209 sed $sc ldscripts/${EMULATION_NAME}.xdw                 >> e${EMULATION_NAME}.c
 210 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 211 echo '  ; else if (bfd_link_pie (&link_info)'          >> e${EMULATION_NAME}.c
 212 echo '             && link_info.combreloc'             >> e${EMULATION_NAME}.c
 213 echo '             && link_info.separate_code'         >> e${EMULATION_NAME}.c
 214 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 215 sed $sc ldscripts/${EMULATION_NAME}.xdceo              >> e${EMULATION_NAME}.c
 216 fi
 217 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 218 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 219 echo '             && link_info.combreloc) return'      >> e${EMULATION_NAME}.c
 220 sed $sc ldscripts/${EMULATION_NAME}.xdce                >> e${EMULATION_NAME}.c
 221 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 222 echo '  ; else if (bfd_link_pie (&link_info)'          >> e${EMULATION_NAME}.c
 223 echo '             && link_info.combreloc'             >> e${EMULATION_NAME}.c
 224 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 225 sed $sc ldscripts/${EMULATION_NAME}.xdco               >> e${EMULATION_NAME}.c
 226 fi
 227 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 228 echo '             && link_info.combreloc) return'      >> e${EMULATION_NAME}.c
 229 sed $sc ldscripts/${EMULATION_NAME}.xdc                 >> e${EMULATION_NAME}.c
 230 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 231 echo '  ; else if (bfd_link_pie (&link_info)'          >> e${EMULATION_NAME}.c
 232 echo '             && link_info.separate_code'         >> e${EMULATION_NAME}.c
 233 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 234 sed $sc ldscripts/${EMULATION_NAME}.xdeo               >> e${EMULATION_NAME}.c
 235 fi
 236 fi
 237 echo '  ; else if (bfd_link_pie (&link_info)'           >> e${EMULATION_NAME}.c
 238 echo '             && link_info.separate_code) return'  >> e${EMULATION_NAME}.c
 239 sed $sc ldscripts/${EMULATION_NAME}.xde                 >> e${EMULATION_NAME}.c
 240 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 241 echo '  ; else if (bfd_link_pie (&link_info)'          >> e${EMULATION_NAME}.c
 242 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 243 sed $sc ldscripts/${EMULATION_NAME}.xdo                >> e${EMULATION_NAME}.c
 244 fi
 245 echo '  ; else if (bfd_link_pie (&link_info)) return'   >> e${EMULATION_NAME}.c
 246 sed $sc ldscripts/${EMULATION_NAME}.xd                  >> e${EMULATION_NAME}.c
 247 fi
 248 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
 249 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 250 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 251 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 252 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 253 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 254 sed $sc ldscripts/${EMULATION_NAME}.xswe                >> e${EMULATION_NAME}.c
 255 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 256 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 257 echo '             && link_info.relro'                  >> e${EMULATION_NAME}.c
 258 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 259 sed $sc ldscripts/${EMULATION_NAME}.xsw                 >> e${EMULATION_NAME}.c
 260 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 261 echo '  ; else if (bfd_link_dll (&link_info)'          >> e${EMULATION_NAME}.c
 262 echo '             && link_info.combreloc'             >> e${EMULATION_NAME}.c
 263 echo '             && link_info.separate_code'         >> e${EMULATION_NAME}.c
 264 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 265 sed $sc ldscripts/${EMULATION_NAME}.xsceo              >> e${EMULATION_NAME}.c
 266 fi
 267 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 268 echo '             && link_info.combreloc'              >> e${EMULATION_NAME}.c
 269 echo '             && link_info.separate_code) return'  >> e${EMULATION_NAME}.c
 270 sed $sc ldscripts/${EMULATION_NAME}.xsce                        >> e${EMULATION_NAME}.c
 271 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 272 echo '  ; else if (bfd_link_dll (&link_info)'          >> e${EMULATION_NAME}.c
 273 echo '             && link_info.combreloc'             >> e${EMULATION_NAME}.c
 274 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 275 sed $sc ldscripts/${EMULATION_NAME}.xsco               >> e${EMULATION_NAME}.c
 276 fi
 277 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 278 echo '             && link_info.combreloc) return'      >> e${EMULATION_NAME}.c
 279 sed $sc ldscripts/${EMULATION_NAME}.xsc                 >> e${EMULATION_NAME}.c
 280 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 281 echo '  ; else if (bfd_link_dll (&link_info)'          >> e${EMULATION_NAME}.c
 282 echo '             && link_info.separate_code'         >> e${EMULATION_NAME}.c
 283 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 284 sed $sc ldscripts/${EMULATION_NAME}.xseo               >> e${EMULATION_NAME}.c
 285 fi
 286 fi
 287 echo '  ; else if (bfd_link_dll (&link_info)'           >> e${EMULATION_NAME}.c
 288 echo '             && link_info.separate_code) return'  >> e${EMULATION_NAME}.c
 289 sed $sc ldscripts/${EMULATION_NAME}.xse                 >> e${EMULATION_NAME}.c
 290 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 291 echo '  ; else if (bfd_link_dll (&link_info)'          >> e${EMULATION_NAME}.c
 292 echo '             && link_info.relro) return'         >> e${EMULATION_NAME}.c
 293 sed $sc ldscripts/${EMULATION_NAME}.xso               >> e${EMULATION_NAME}.c
 294 fi
 295 echo '  ; else if (bfd_link_dll (&link_info)) return'   >> e${EMULATION_NAME}.c
 296 sed $sc ldscripts/${EMULATION_NAME}.xs                  >> e${EMULATION_NAME}.c
 297 fi
 298 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 299 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 300 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 301 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 302 sed $sc ldscripts/${EMULATION_NAME}.xwe                 >> e${EMULATION_NAME}.c
 303 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 304 echo '             && link_info.relro'                  >> e${EMULATION_NAME}.c
 305 echo '             && (link_info.flags & DF_BIND_NOW)) return' >> e${EMULATION_NAME}.c
 306 sed $sc ldscripts/${EMULATION_NAME}.xw                  >> e${EMULATION_NAME}.c
 307 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 308 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 309 echo '             && link_info.separate_code'          >> e${EMULATION_NAME}.c
 310 echo '             && link_info.relro) return'          >> e${EMULATION_NAME}.c
 311 sed $sc ldscripts/${EMULATION_NAME}.xceo                >> e${EMULATION_NAME}.c
 312 fi
 313 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 314 echo '             && link_info.separate_code) return'  >> e${EMULATION_NAME}.c
 315 sed $sc ldscripts/${EMULATION_NAME}.xce                 >> e${EMULATION_NAME}.c
 316 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 317 echo '  ; else if (link_info.combreloc'                 >> e${EMULATION_NAME}.c
 318 echo '             && link_info.relro) return'          >> e${EMULATION_NAME}.c
 319 sed $sc ldscripts/${EMULATION_NAME}.xco                 >> e${EMULATION_NAME}.c
 320 fi
 321 echo '  ; else if (link_info.combreloc) return'         >> e${EMULATION_NAME}.c
 322 sed $sc ldscripts/${EMULATION_NAME}.xc                  >> e${EMULATION_NAME}.c
 323 fi
 324 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 325 echo '  ; else if (link_info.separate_code'             >> e${EMULATION_NAME}.c
 326 echo '             && link_info.relro) return'          >> e${EMULATION_NAME}.c
 327 sed $sc ldscripts/${EMULATION_NAME}.xeo                 >> e${EMULATION_NAME}.c
 328 fi
 329 echo '  ; else if (link_info.separate_code) return'     >> e${EMULATION_NAME}.c
 330 sed $sc ldscripts/${EMULATION_NAME}.xe                  >> e${EMULATION_NAME}.c
 331 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 332 echo '  ; else if (link_info.relro) return'             >> e${EMULATION_NAME}.c
 333 sed $sc ldscripts/${EMULATION_NAME}.xo                  >> e${EMULATION_NAME}.c
 334 fi
 335 echo '  ; else return'                                  >> e${EMULATION_NAME}.c
 336 sed $sc ldscripts/${EMULATION_NAME}.x                   >> e${EMULATION_NAME}.c
 337 echo '; }'                                              >> e${EMULATION_NAME}.c
 338
 339 else
 340 # Scripts read from the filesystem.
 341
 342 fragment <<EOF
 343 {
 344   *isfile = 1;
 345
 346   if (bfd_link_relocatable (&link_info) && config.build_constructors)
 347     return "ldscripts/${EMULATION_NAME}.xu";
 348   else if (bfd_link_relocatable (&link_info))
 349     return "ldscripts/${EMULATION_NAME}.xr";
 350   else if (!config.text_read_only)
 351     return "ldscripts/${EMULATION_NAME}.xbn";
 352 EOF
 353 if cmp -s ldscripts/${EMULATION_NAME}.x ldscripts/${EMULATION_NAME}.xn; then :
 354 else
 355 fragment <<EOF
 356   else if (!config.magic_demand_paged)
 357     return "ldscripts/${EMULATION_NAME}.xn";
 358 EOF
 359 fi
 360 if test -n "$GENERATE_PIE_SCRIPT" ; then
 361 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 362 fragment <<EOF
 363   else if (bfd_link_pie (&link_info)
 364            && link_info.combreloc
 365            && link_info.relro
 366            && (link_info.flags & DF_BIND_NOW))
 367     {
 368       if (link_info.separate_code)
 369         return "ldscripts/${EMULATION_NAME}.xdwe";
 370       else
 371         return "ldscripts/${EMULATION_NAME}.xdw";
 372     }
 373 EOF
 374 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 375 fragment <<EOF
 376   else if (bfd_link_pie (&link_info)
 377            && link_info.combreloc
 378            && link_info.relro)
 379     {
 380       if (link_info.separate_code)
 381         return "ldscripts/${EMULATION_NAME}.xdceo";
 382       else
 383         return "ldscripts/${EMULATION_NAME}.xdco";
 384     }
 385 EOF
 386 fi
 387 fragment <<EOF
 388   else if (bfd_link_pie (&link_info)
 389            && link_info.combreloc)
 390     {
 391       if (link_info.separate_code)
 392         return "ldscripts/${EMULATION_NAME}.xdce";
 393       else
 394         return "ldscripts/${EMULATION_NAME}.xdc";
 395     }
 396 EOF
 397 fi
 398 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 399 fragment <<EOF
 400   else if (bfd_link_pie (&link_info)
 401            && link_info.relro)
 402     {
 403       if (link_info.separate_code)
 404         return "ldscripts/${EMULATION_NAME}.xdeo";
 405       else
 406         return "ldscripts/${EMULATION_NAME}.xdo";
 407     }
 408 EOF
 409 fi
 410 fragment <<EOF
 411   else if (bfd_link_pie (&link_info))
 412     {
 413       if (link_info.separate_code)
 414         return "ldscripts/${EMULATION_NAME}.xde";
 415       else
 416         return "ldscripts/${EMULATION_NAME}.xd";
 417     }
 418 EOF
 419 fi
 420 if test -n "$GENERATE_SHLIB_SCRIPT" ; then
 421 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 422 fragment <<EOF
 423   else if (bfd_link_dll (&link_info) && link_info.combreloc
 424            && link_info.relro && (link_info.flags & DF_BIND_NOW))
 425     {
 426       if (link_info.separate_code)
 427         return "ldscripts/${EMULATION_NAME}.xswe";
 428       else
 429         return "ldscripts/${EMULATION_NAME}.xsw";
 430     }
 431 EOF
 432 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 433 fragment <<EOF
 434   else if (bfd_link_dll (&link_info)
 435            && link_info.combreloc
 436            && link_info.relro)
 437     {
 438       if (link_info.separate_code)
 439         return "ldscripts/${EMULATION_NAME}.xsceo";
 440       else
 441         return "ldscripts/${EMULATION_NAME}.xsco";
 442     }
 443 EOF
 444 fi
 445 fragment <<EOF
 446   else if (bfd_link_dll (&link_info) && link_info.combreloc)
 447     {
 448       if (link_info.separate_code)
 449         return "ldscripts/${EMULATION_NAME}.xsce";
 450       else
 451         return "ldscripts/${EMULATION_NAME}.xsc";
 452     }
 453 EOF
 454 fi
 455 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 456 fragment <<EOF
 457   else if (bfd_link_dll (&link_info)
 458            && link_info.relro)
 459     {
 460       if (link_info.separate_code)
 461         return "ldscripts/${EMULATION_NAME}.xseo";
 462       else
 463         return "ldscripts/${EMULATION_NAME}.xso";
 464     }
 465 EOF
 466 fi
 467 fragment <<EOF
 468   else if (bfd_link_dll (&link_info))
 469     {
 470       if (link_info.separate_code)
 471         return "ldscripts/${EMULATION_NAME}.xse";
 472       else
 473         return "ldscripts/${EMULATION_NAME}.xs";
 474     }
 475 EOF
 476 fi
 477 if test -n "$GENERATE_COMBRELOC_SCRIPT" ; then
 478 fragment <<EOF
 479   else if (link_info.combreloc && link_info.relro
 480            && (link_info.flags & DF_BIND_NOW))
 481     {
 482       if (link_info.separate_code)
 483         return "ldscripts/${EMULATION_NAME}.xwe";
 484       else
 485         return "ldscripts/${EMULATION_NAME}.xw";
 486     }
 487 EOF
 488 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 489 fragment <<EOF
 490   else if (link_info.combreloc
 491            && link_info.relro)
 492     {
 493       if (link_info.separate_code)
 494         return "ldscripts/${EMULATION_NAME}.xceo";
 495       else
 496         return "ldscripts/${EMULATION_NAME}.xco";
 497     }
 498 EOF
 499 fi
 500 fragment <<EOF
 501   else if (link_info.combreloc)
 502     {
 503       if (link_info.separate_code)
 504         return "ldscripts/${EMULATION_NAME}.xce";
 505       else
 506         return "ldscripts/${EMULATION_NAME}.xc";
 507     }
 508 EOF
 509 fi
 510 if test -n "$GENERATE_RELRO_SCRIPT" ; then
 511 fragment <<EOF
 512   else if (link_info.relro)
 513     {
 514       if (link_info.separate_code)
 515         return "ldscripts/${EMULATION_NAME}.xeo";
 516       else
 517         return "ldscripts/${EMULATION_NAME}.xo";
 518     }
 519 EOF
 520 fi
 521 fragment <<EOF
 522   else
 523     {
 524       if (link_info.separate_code)
 525         return "ldscripts/${EMULATION_NAME}.xe";
 526       else
 527         return "ldscripts/${EMULATION_NAME}.x";
 528     }
 529 }
 530
 531 EOF
 532 fi
 533 fi
 534
 535 if test -n "$PARSE_AND_LIST_PROLOGUE" ; then
 536 fragment <<EOF
 537  $PARSE_AND_LIST_PROLOGUE
 538 EOF
 539 fi
 540
 541 fragment <<EOF
 542
 543 enum elf_options
 544 {
 545   OPTION_DISABLE_NEW_DTAGS = 400,
 546   OPTION_ENABLE_NEW_DTAGS,
 547   OPTION_GROUP,
 548   OPTION_EH_FRAME_HDR,
 549   OPTION_NO_EH_FRAME_HDR,
 550   OPTION_EXCLUDE_LIBS,
 551   OPTION_HASH_STYLE,
 552   OPTION_BUILD_ID,
 553   OPTION_AUDIT,
 554   OPTION_COMPRESS_DEBUG
 555 };
 556
 557 static void
 558 gld${EMULATION_NAME}_add_options
 559   (int ns, char **shortopts, int nl, struct option **longopts,
 560    int nrl ATTRIBUTE_UNUSED, struct option **really_longopts ATTRIBUTE_UNUSED)
 561 {
 562 EOF
 563 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 564 fragment <<EOF
 565   static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:P:";
 566 EOF
 567 else
 568 fragment <<EOF
 569   static const char xtra_short[] = "${PARSE_AND_LIST_SHORTOPTS}z:";
 570 EOF
 571 fi
 572 fragment <<EOF
 573   static const struct option xtra_long[] = {
 574 EOF
 575 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 576 fragment <<EOF
 577     {"audit", required_argument, NULL, OPTION_AUDIT},
 578     {"Bgroup", no_argument, NULL, OPTION_GROUP},
 579 EOF
 580 fi
 581 fragment <<EOF
 582     {"build-id", optional_argument, NULL, OPTION_BUILD_ID},
 583     {"compress-debug-sections", required_argument, NULL, OPTION_COMPRESS_DEBUG},
 584 EOF
 585 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 586 fragment <<EOF
 587     {"depaudit", required_argument, NULL, 'P'},
 588     {"disable-new-dtags", no_argument, NULL, OPTION_DISABLE_NEW_DTAGS},
 589     {"enable-new-dtags", no_argument, NULL, OPTION_ENABLE_NEW_DTAGS},
 590     {"eh-frame-hdr", no_argument, NULL, OPTION_EH_FRAME_HDR},
 591     {"no-eh-frame-hdr", no_argument, NULL, OPTION_NO_EH_FRAME_HDR},
 592     {"exclude-libs", required_argument, NULL, OPTION_EXCLUDE_LIBS},
 593     {"hash-style", required_argument, NULL, OPTION_HASH_STYLE},
 594 EOF
 595 fi
 596 if test -n "$PARSE_AND_LIST_LONGOPTS" ; then
 597 fragment <<EOF
 598     $PARSE_AND_LIST_LONGOPTS
 599 EOF
 600 fi
 601 fragment <<EOF
 602     {NULL, no_argument, NULL, 0}
 603   };
 604
 605   *shortopts = (char *) xrealloc (*shortopts, ns + sizeof (xtra_short));
 606   memcpy (*shortopts + ns, &xtra_short, sizeof (xtra_short));
 607   *longopts = (struct option *)
 608     xrealloc (*longopts, nl * sizeof (struct option) + sizeof (xtra_long));
 609   memcpy (*longopts + nl, &xtra_long, sizeof (xtra_long));
 610 }
 611
 612 #define DEFAULT_BUILD_ID_STYLE  "sha1"
 613
 614 static bfd_boolean
 615 gld${EMULATION_NAME}_handle_option (int optc)
 616 {
 617   switch (optc)
 618     {
 619     default:
 620       return FALSE;
 621
 622     case OPTION_BUILD_ID:
 623       if (ldelf_emit_note_gnu_build_id != NULL)
 624         {
 625           free ((char *) ldelf_emit_note_gnu_build_id);
 626           ldelf_emit_note_gnu_build_id = NULL;
 627         }
 628       if (optarg == NULL)
 629         optarg = DEFAULT_BUILD_ID_STYLE;
 630       if (strcmp (optarg, "none"))
 631         ldelf_emit_note_gnu_build_id = xstrdup (optarg);
 632       break;
 633
 634     case OPTION_COMPRESS_DEBUG:
 635       if (strcasecmp (optarg, "none") == 0)
 636         link_info.compress_debug = COMPRESS_DEBUG_NONE;
 637       else if (strcasecmp (optarg, "zlib") == 0)
 638         link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
 639       else if (strcasecmp (optarg, "zlib-gnu") == 0)
 640         link_info.compress_debug = COMPRESS_DEBUG_GNU_ZLIB;
 641       else if (strcasecmp (optarg, "zlib-gabi") == 0)
 642         link_info.compress_debug = COMPRESS_DEBUG_GABI_ZLIB;
 643       else
 644         einfo (_("%F%P: invalid --compress-debug-sections option: \`%s'\n"),
 645                optarg);
 646       break;
 647 EOF
 648
 649 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 650 fragment <<EOF
 651     case OPTION_AUDIT:
 652         ldelf_append_to_separated_string (&audit, optarg);
 653         break;
 654
 655     case 'P':
 656         ldelf_append_to_separated_string (&depaudit, optarg);
 657         break;
 658
 659     case OPTION_DISABLE_NEW_DTAGS:
 660       link_info.new_dtags = FALSE;
 661       break;
 662
 663     case OPTION_ENABLE_NEW_DTAGS:
 664       link_info.new_dtags = TRUE;
 665       break;
 666
 667     case OPTION_EH_FRAME_HDR:
 668       link_info.eh_frame_hdr_type = DWARF2_EH_HDR;
 669       break;
 670
 671     case OPTION_NO_EH_FRAME_HDR:
 672       link_info.eh_frame_hdr_type = 0;
 673       break;
 674
 675     case OPTION_GROUP:
 676       link_info.flags_1 |= (bfd_vma) DF_1_GROUP;
 677       /* Groups must be self-contained.  */
 678       link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
 679       link_info.unresolved_syms_in_shared_libs = RM_GENERATE_ERROR;
 680       break;
 681
 682     case OPTION_EXCLUDE_LIBS:
 683       add_excluded_libs (optarg);
 684       break;
 685
 686     case OPTION_HASH_STYLE:
 687       link_info.emit_hash = FALSE;
 688       link_info.emit_gnu_hash = FALSE;
 689       if (strcmp (optarg, "sysv") == 0)
 690         link_info.emit_hash = TRUE;
 691       else if (strcmp (optarg, "gnu") == 0)
 692         link_info.emit_gnu_hash = TRUE;
 693       else if (strcmp (optarg, "both") == 0)
 694         {
 695           link_info.emit_hash = TRUE;
 696           link_info.emit_gnu_hash = TRUE;
 697         }
 698       else
 699         einfo (_("%F%P: invalid hash style \`%s'\n"), optarg);
 700       break;
 701
 702 EOF
 703 fi
 704 fragment <<EOF
 705     case 'z':
 706       if (strcmp (optarg, "defs") == 0)
 707         link_info.unresolved_syms_in_objects = RM_GENERATE_ERROR;
 708       else if (strcmp (optarg, "undefs") == 0)
 709         link_info.unresolved_syms_in_objects = RM_IGNORE;
 710       else if (strcmp (optarg, "muldefs") == 0)
 711         link_info.allow_multiple_definition = TRUE;
 712       else if (CONST_STRNEQ (optarg, "max-page-size="))
 713         {
 714           char *end;
 715
 716           config.maxpagesize = strtoul (optarg + 14, &end, 0);
 717           if (*end || (config.maxpagesize & (config.maxpagesize - 1)) != 0)
 718             einfo (_("%F%P: invalid maximum page size \`%s'\n"),
 719                    optarg + 14);
 720         }
 721       else if (CONST_STRNEQ (optarg, "common-page-size="))
 722         {
 723           char *end;
 724           config.commonpagesize = strtoul (optarg + 17, &end, 0);
 725           if (*end
 726               || (config.commonpagesize & (config.commonpagesize - 1)) != 0)
 727             einfo (_("%F%P: invalid common page size \`%s'\n"),
 728                    optarg + 17);
 729         }
 730       else if (CONST_STRNEQ (optarg, "stack-size="))
 731         {
 732           char *end;
 733           link_info.stacksize = strtoul (optarg + 11, &end, 0);
 734           if (*end || link_info.stacksize < 0)
 735             einfo (_("%F%P: invalid stack size \`%s'\n"), optarg + 11);
 736           if (!link_info.stacksize)
 737             /* Use -1 for explicit no-stack, because zero means
 738                'default'.   */
 739             link_info.stacksize = -1;
 740         }
 741       else if (strcmp (optarg, "execstack") == 0)
 742         {
 743           link_info.execstack = TRUE;
 744           link_info.noexecstack = FALSE;
 745         }
 746       else if (strcmp (optarg, "noexecstack") == 0)
 747         {
 748           link_info.noexecstack = TRUE;
 749           link_info.execstack = FALSE;
 750         }
 751       else if (strcmp (optarg, "globalaudit") == 0)
 752         {
 753           link_info.flags_1 |= DF_1_GLOBAUDIT;
 754         }
 755 EOF
 756
 757 if test x"$GENERATE_SHLIB_SCRIPT" = xyes; then
 758 fragment <<EOF
 759       else if (strcmp (optarg, "global") == 0)
 760         link_info.flags_1 |= (bfd_vma) DF_1_GLOBAL;
 761       else if (strcmp (optarg, "initfirst") == 0)
 762         link_info.flags_1 |= (bfd_vma) DF_1_INITFIRST;
 763       else if (strcmp (optarg, "interpose") == 0)
 764         link_info.flags_1 |= (bfd_vma) DF_1_INTERPOSE;
 765       else if (strcmp (optarg, "loadfltr") == 0)
 766         link_info.flags_1 |= (bfd_vma) DF_1_LOADFLTR;
 767       else if (strcmp (optarg, "nodefaultlib") == 0)
 768         link_info.flags_1 |= (bfd_vma) DF_1_NODEFLIB;
 769       else if (strcmp (optarg, "nodelete") == 0)
 770         link_info.flags_1 |= (bfd_vma) DF_1_NODELETE;
 771       else if (strcmp (optarg, "nodlopen") == 0)
 772         link_info.flags_1 |= (bfd_vma) DF_1_NOOPEN;
 773       else if (strcmp (optarg, "nodump") == 0)
 774         link_info.flags_1 |= (bfd_vma) DF_1_NODUMP;
 775       else if (strcmp (optarg, "now") == 0)
 776         {
 777           link_info.flags |= (bfd_vma) DF_BIND_NOW;
 778           link_info.flags_1 |= (bfd_vma) DF_1_NOW;
 779         }
 780       else if (strcmp (optarg, "lazy") == 0)
 781         {
 782           link_info.flags &= ~(bfd_vma) DF_BIND_NOW;
 783           link_info.flags_1 &= ~(bfd_vma) DF_1_NOW;
 784         }
 785       else if (strcmp (optarg, "origin") == 0)
 786         {
 787           link_info.flags |= (bfd_vma) DF_ORIGIN;
 788           link_info.flags_1 |= (bfd_vma) DF_1_ORIGIN;
 789         }
 790       else if (strcmp (optarg, "combreloc") == 0)
 791         link_info.combreloc = TRUE;
 792       else if (strcmp (optarg, "nocombreloc") == 0)
 793         link_info.combreloc = FALSE;
 794       else if (strcmp (optarg, "nocopyreloc") == 0)
 795         link_info.nocopyreloc = TRUE;
 796       else if (strcmp (optarg, "relro") == 0)
 797         link_info.relro = TRUE;
 798       else if (strcmp (optarg, "norelro") == 0)
 799         link_info.relro = FALSE;
 800       else if (strcmp (optarg, "separate-code") == 0)
 801         link_info.separate_code = TRUE;
 802       else if (strcmp (optarg, "noseparate-code") == 0)
 803         link_info.separate_code = FALSE;
 804       else if (strcmp (optarg, "common") == 0)
 805         link_info.elf_stt_common = elf_stt_common;
 806       else if (strcmp (optarg, "nocommon") == 0)
 807         link_info.elf_stt_common = no_elf_stt_common;
 808       else if (strcmp (optarg, "text") == 0)
 809         link_info.error_textrel = TRUE;
 810       else if (strcmp (optarg, "notext") == 0)
 811         link_info.error_textrel = FALSE;
 812       else if (strcmp (optarg, "textoff") == 0)
 813         link_info.error_textrel = FALSE;
 814 EOF
 815 fi
 816
 817 if test -n "$PARSE_AND_LIST_ARGS_CASE_Z" ; then
 818 fragment <<EOF
 819  $PARSE_AND_LIST_ARGS_CASE_Z
 820 EOF
 821 fi
 822
 823 fragment <<EOF
 824       else
 825         einfo (_("%P: warning: -z %s ignored\n"), optarg);
 826       break;
 827 EOF
 828
 829 if test -n "$PARSE_AND_LIST_ARGS_CASES" ; then
 830 fragment <<EOF
 831  $PARSE_AND_LIST_ARGS_CASES
 832 EOF
 833 fi
 834
 835 fragment <<EOF
 836     }
 837
 838   return TRUE;
 839 }
 840
 841 EOF
 842
 843 if test x"$LDEMUL_LIST_OPTIONS" != xgld"$EMULATION_NAME"_list_options; then
 844 gld_list_options="gld${EMULATION_NAME}_list_options"
 845 if test -n "$PARSE_AND_LIST_OPTIONS"; then
 846 fragment <<EOF
 847
 848 static void
 849 gld${EMULATION_NAME}_list_options (FILE * file)
 850 {
 851 EOF
 852
 853 if test -n "$PARSE_AND_LIST_OPTIONS" ; then
 854 fragment <<EOF
 855  $PARSE_AND_LIST_OPTIONS
 856 EOF
 857 fi
 858
 859 fragment <<EOF
 860 }
 861 EOF
 862 else
 863   gld_list_options="NULL"
 864 fi
 865
 866 if test -n "$PARSE_AND_LIST_EPILOGUE" ; then
 867 fragment <<EOF
 868  $PARSE_AND_LIST_EPILOGUE
 869 EOF
 870 fi
 871 fi
 872
 873 fragment <<EOF
 874
 875 struct ld_emulation_xfer_struct ld_${EMULATION_NAME}_emulation =
 876 {
 877   ${LDEMUL_BEFORE_PARSE-gld${EMULATION_NAME}_before_parse},
 878   ${LDEMUL_SYSLIB-syslib_default},
 879   ${LDEMUL_HLL-hll_default},
 880   ${LDEMUL_AFTER_PARSE-ldelf_after_parse},
 881   ${LDEMUL_AFTER_OPEN-gld${EMULATION_NAME}_after_open},
 882   ${LDEMUL_AFTER_CHECK_RELOCS-after_check_relocs_default},
 883   ${LDEMUL_AFTER_ALLOCATION-gld${EMULATION_NAME}_after_allocation},
 884   ${LDEMUL_SET_OUTPUT_ARCH-set_output_arch_default},
 885   ${LDEMUL_CHOOSE_TARGET-ldemul_default_target},
 886   ${LDEMUL_BEFORE_ALLOCATION-gld${EMULATION_NAME}_before_allocation},
 887   ${LDEMUL_GET_SCRIPT-gld${EMULATION_NAME}_get_script},
 888   "${EMULATION_NAME}",
 889   "${OUTPUT_FORMAT}",
 890   ${LDEMUL_FINISH-finish_default},
 891   ${LDEMUL_CREATE_OUTPUT_SECTION_STATEMENTS-NULL},
 892   ${LDEMUL_OPEN_DYNAMIC_ARCHIVE-ldelf_open_dynamic_archive},
 893   ${LDEMUL_PLACE_ORPHAN-ldelf_place_orphan},
 894   ${LDEMUL_SET_SYMBOLS-NULL},
 895   ${LDEMUL_PARSE_ARGS-NULL},
 896   gld${EMULATION_NAME}_add_options,
 897   gld${EMULATION_NAME}_handle_option,
 898   ${LDEMUL_UNRECOGNIZED_FILE-NULL},
 899   ${LDEMUL_LIST_OPTIONS-${gld_list_options}},
 900   ${LDEMUL_RECOGNIZED_FILE-ldelf_load_symbols},
 901   ${LDEMUL_FIND_POTENTIAL_LIBRARIES-NULL},
 902   ${LDEMUL_NEW_VERS_PATTERN-NULL},
 903   ${LDEMUL_EXTRA_MAP_FILE_TEXT-NULL},
 904   ${LDEMUL_EMIT_CTF_EARLY-NULL},
 905   ${LDEMUL_EXAMINE_STRTAB_FOR_CTF-NULL}
 906 };
 907 EOF