ld/genscripts.sh

   1 #!/bin/sh
   2 # genscripts.sh - generate the ld-emulation-target specific files
   3 # Copyright (C) 2004-2019 Free Software Foundation, Inc.
   4 #
   5 # This file is part of the Gnu Linker.
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3, or (at your option)
  10 # any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with GLD; see the file COPYING.  If not, write to the Free
  19 # Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
  20 # 02110-1301, USA.
  21 #
  22 # Usage: genscripts_extra.sh \
  23 #          srcdir \
  24 #          libdir \
  25 #          prefix \
  26 #          exec_prefix \
  27 #          host \
  28 #          target \
  29 #          target_alias \
  30 #          default_emulation \
  31 #          native_lib_dirs \
  32 #          use_sysroot \
  33 #          enable_initfini_array \
  34 #          this_emulation \
  35 # optional:
  36 #          tool_dir
  37 #
  38 # Sample usage:
  39 #
  40 #   genscripts_extra.sh \
  41 #    /sources/ld \
  42 #    /usr/local/lib \
  43 #    /usr/local \
  44 #    /usr/local \
  45 #    sparc-sun-sunos4.1.3 \
  46 #    sparc-sun-sunos4.1.3 \
  47 #    sparc-sun-sunos4.1.3 \
  48 #    sun4 \
  49 #    "" \
  50 #    no \
  51 #    sun3 \
  52 #    sparc-sun-sunos4.1.3 \
  53 #    sparc.sh
  54 #
  55 # produces the linker scripts:
  56 #
  57 #   sun3.x       [default linker script]
  58 #   sun3.xbn     [used when the linker is invoked with "-N"]
  59 #   sun3.xn      [used when the linker is invoked with "-n"]
  60 #   sun3.xr      [used when the linker is invoked with "-r"]
  61 #   sun3.xu      [used when the linker is invoked with "-Ur"]
  62 #
  63 # depending on platform specific settings linker scripts with the
  64 # following suffixes might be generated as well:
  65 #
  66 # xdwe:   -pie    -z combreloc -z separate-code          -z now
  67 # xdw:    -pie    -z combreloc                  -z relro -z now
  68 # xdceo:  -pie    -z combreloc -z separate-code -z relro
  69 # xdce:   -pie    -z combreloc -z separate-code
  70 # xdco:   -pie    -z combreloc                  -z relro
  71 # xdc:    -pie    -z combreloc
  72 # xdeo:   -pie                 -z separate-code -z relro
  73 # xde:    -pie                 -z separate-code
  74 # xdo:    -pie                                  -z relro
  75 # xd:     -pie
  76 #
  77 # xswe:   -shared -z combreloc -z separate-code          -z now
  78 # xsw:    -shared -z combreloc                  -z relro -z now
  79 # xsceo:  -shared -z combreloc -z separate-code -z relro
  80 # xsce:   -shared -z combreloc -z separate-code
  81 # xsco:   -shared -z combreloc                  -z relro
  82 # xsc:    -shared -z combreloc
  83 # xseo:   -shared              -z separate-code -z relro
  84 # xse:    -shared              -z separate-code
  85 # xso:    -shared                               -z relro
  86 # xs:     -shared
  87 #
  88 # xwe:            -z combreloc -z separate-code          -z now
  89 # xw:             -z combreloc                  -z relro -z now
  90 # xceo:           -z combreloc -z separate-code -z relro
  91 # xce:            -z combreloc -z separate-code
  92 # xco:            -z combreloc                  -z relro
  93 # xc:             -z combreloc
  94 # xeo:                         -z separate-code -z relro
  95 # xe:                          -z separate-code
  96 # xo:                                           -z relro
  97 #
  98 #
  99 # It also produced the C source file:
 100 #
 101 #   em_sun3.c
 102 #
 103 # which is then compiled into the linker.
 104 #
 105 # The linker scripts are created by running the shell script
 106 # /sources/ld/emulparams/sparc.sh to set the value of ${SCRIPT_NAME}
 107 # (and any other variables it wants to).  ${SCRIPT_NAME} is then
 108 # invoked with a variable called ${LD_FLAG} to tell it which version
 109 # of the linker script to create.
 110
 111
 112 srcdir=$1
 113 libdir=$2
 114 prefix=$3
 115 exec_prefix=$4
 116 host=$5
 117 target=$6
 118 target_alias=$7
 119 EMULATION_LIBPATH=$8
 120 NATIVE_LIB_DIRS=$9
 121 shift 9
 122 use_sysroot=$1
 123 ENABLE_INITFINI_ARRAY=$2
 124 EMULATION_NAME=$3
 125 TOOL_LIB=$4
 126
 127 # Include the emulation-specific parameters:
 128 CUSTOMIZER_SCRIPT="${srcdir}/emulparams/${EMULATION_NAME}.sh"
 129 . ${CUSTOMIZER_SCRIPT}
 130
 131 if test -d ldscripts; then
 132   true
 133 else
 134   mkdir ldscripts
 135 fi
 136
 137 # Set some flags for the emultempl scripts.  USE_LIBPATH will
 138 # be set for any libpath-using emulation; NATIVE will be set for a
 139 # libpath-using emulation where ${host} = ${target}.  NATIVE
 140 # may already have been set by the emulparams file, but that's OK
 141 # (it'll just get set to "yes" twice).
 142
 143 case " $EMULATION_LIBPATH " in
 144   *" ${EMULATION_NAME} "*)
 145     if [ "x${host}" = "x${target}" ] ; then
 146       NATIVE=yes
 147       USE_LIBPATH=yes
 148     elif [ "x${use_sysroot}" = "xyes" ] ; then
 149       USE_LIBPATH=yes
 150     fi
 151     ;;
 152 esac
 153
 154 # If the emulparams file sets NATIVE, make sure USE_LIBPATH is set also.
 155 if test "x$NATIVE" = "xyes" ; then
 156   USE_LIBPATH=yes
 157 fi
 158
 159 # Set the library search path, for libraries named by -lfoo.
 160 # If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
 161 # Otherwise, the default is set here.
 162 #
 163 # The format is the usual list of colon-separated directories.
 164 # To force a logically empty LIB_PATH, do LIBPATH=":".
 165 #
 166 # If we are using a sysroot, prefix library paths with "=" to indicate this.
 167 #
 168 # If the emulparams file set LIBPATH_SUFFIX, prepend an extra copy of
 169 # the library path with the suffix applied.
 170
 171 # Paths with LIBPATH_SUFFIX
 172 lib_path1=
 173 # Paths without LIBPATH_SUFFIX
 174 lib_path2=
 175 if [ "${LIB_PATH}" != ":" ] ; then
 176   lib_path2=${LIB_PATH}
 177 fi
 178
 179 # Add args to lib_path1 and lib_path2, discarding any duplicates
 180 append_to_lib_path()
 181 {
 182   if [ $# != 0 ]; then
 183     for lib in "$@"; do
 184       # The "=" is harmless if we aren't using a sysroot, but also needless.
 185       if [ "x${use_sysroot}" = "xyes" ] ; then
 186         lib="=${lib}"
 187       fi
 188       skip_lib=no
 189       for libpath_suffix in ${LIBPATH_SUFFIX}; do
 190         case "${lib}" in
 191           *${libpath_suffix})
 192             case :${lib_path1}: in
 193               *:${lib}:*) ;;
 194               ::) lib_path1=${lib} ;;
 195               *) lib_path1=${lib_path1}:${lib} ;;
 196             esac ;;
 197           *)
 198             if test -n "${LIBPATH_SUFFIX_SKIP}"; then
 199               case "${lib}" in
 200                 *${LIBPATH_SUFFIX_SKIP}) skip_lib=yes ;;
 201               esac
 202             fi
 203             if test "${skip_lib}" = "no"; then
 204               case :${lib_path1}: in
 205                 *:${lib}${libpath_suffix}:*) ;;
 206                 ::) lib_path1=${lib}${libpath_suffix} ;;
 207                 *) lib_path1=${lib_path1}:${lib}${libpath_suffix} ;;
 208               esac
 209             fi ;;
 210         esac
 211       done
 212       if test "${skip_lib}" = "no"; then
 213         case :${lib_path1}:${lib_path2}: in
 214           *:${lib}:*) ;;
 215           *::) lib_path2=${lib} ;;
 216           *) lib_path2=${lib_path2}:${lib} ;;
 217         esac
 218       fi
 219     done
 220   fi
 221 }
 222
 223 # Always search $(tooldir)/lib, aka /usr/local/TARGET/lib when native
 224 # except when LIBPATH=":".
 225 if [ "${LIB_PATH}" != ":" ] ; then
 226   libs=
 227   if [ "x${TOOL_LIB}" = "x" ] ; then
 228     if [ "x${NATIVE}" = "xyes" ] ; then
 229       libs="${exec_prefix}/${target_alias}/lib"
 230     fi
 231   else
 232     # For multilib'ed targets, ensure both ${target_alias}/lib${LIBPATH_SUFFIX}
 233     # and ${TOOL_LIB}/lib${LIBPATH_SUFFIX} are in the default search path,
 234     # because 64bit libraries may be in both places, depending on
 235     # cross-development setup method (e.g.: /usr/s390x-linux/lib64
 236     # vs. /usr/s390-linux/lib64)
 237     for libpath_suffix in ${LIBPATH_SUFFIX}; do
 238       case "${NATIVE}:${libpath_suffix}:${TOOL_LIB}" in
 239         :* | *::* | *:*:*${libpath_suffix}) ;;
 240         *) libs="${exec_prefix}/${target_alias}/lib${libpath_suffix}" ;;
 241       esac
 242     done
 243     libs="${exec_prefix}/${TOOL_LIB}/lib ${libs}"
 244   fi
 245   append_to_lib_path ${libs}
 246 fi
 247
 248 if [ "x${LIB_PATH}" = "x" ] && [ "x${USE_LIBPATH}" = xyes ] ; then
 249   libs=${NATIVE_LIB_DIRS}
 250   if [ "x${NATIVE}" = "xyes" ] ; then
 251     case " ${libs} " in
 252       *" ${libdir} "*) ;;
 253       *) libs="${libdir} ${libs}" ;;
 254     esac
 255   fi
 256   append_to_lib_path ${libs}
 257 fi
 258
 259 case :${lib_path1}:${lib_path2}: in
 260   *:: | ::*) LIB_PATH=${lib_path1}${lib_path2} ;;
 261   *) LIB_PATH=${lib_path1}:${lib_path2} ;;
 262 esac
 263
 264 LIB_SEARCH_DIRS=`echo ${LIB_PATH} | sed -e 's/:/ /g' -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\\"\1\\");/g'`
 265
 266 # We need it for testsuite.
 267 set $EMULATION_LIBPATH
 268 if [ "x$1" = "x$EMULATION_NAME" ]; then
 269     test -d tmpdir || mkdir tmpdir
 270     rm -f tmpdir/libpath.exp
 271     echo "set libpath \"${LIB_PATH}\"" | sed -e 's/:/ /g' > tmpdir/libpath.exp
 272 fi
 273
 274 # Generate 5 or 6 script files from a master script template in
 275 # ${srcdir}/scripttempl/${SCRIPT_NAME}.sh.  Which one of the 5 or 6
 276 # script files is actually used depends on command line options given
 277 # to ld.  (SCRIPT_NAME was set in the emulparams_file.)
 278 #
 279 # A .x script file is the default script.
 280 # A .xr script is for linking without relocation (-r flag).
 281 # A .xu script is like .xr, but *do* create constructors (-Ur flag).
 282 # A .xn script is for linking with -n flag (mix text and data on same page).
 283 # A .xbn script is for linking with -N flag (mix text and data on same page).
 284 # A .xs script is for generating a shared library with the --shared
 285 #   flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the
 286 #   emulation parameters.
 287 # A .xc script is for linking with -z combreloc; it is only generated if
 288 #   $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
 289 #   $SCRIPT_NAME is "elf".
 290 # A .xsc script is for linking with --shared -z combreloc; it is generated
 291 #   if $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
 292 #   $SCRIPT_NAME is "elf" and $GENERATE_SHLIB_SCRIPT is set by the emulation
 293 #   parameters too.
 294
 295 if [ "x$SCRIPT_NAME" = "xelf" ]; then
 296   GENERATE_COMBRELOC_SCRIPT=yes
 297 fi
 298
 299 SEGMENT_SIZE=${SEGMENT_SIZE-${MAXPAGESIZE-${TARGET_PAGE_SIZE}}}
 300
 301 # Determine DATA_ALIGNMENT for the 5 variants, using
 302 # values specified in the emulparams/<script_to_run>.sh file or default.
 303
 304 DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}"
 305 DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}"
 306 DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
 307 DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
 308 DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
 309
 310 LD_FLAG=r
 311 DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
 312 DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
 313 ( echo "/* Script for ld -r: link without relocation */"
 314   . ${CUSTOMIZER_SCRIPT}
 315   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 316 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xr
 317
 318 LD_FLAG=u
 319 DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
 320 CONSTRUCTING=" "
 321 ( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
 322   . ${CUSTOMIZER_SCRIPT}
 323   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 324 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xu
 325
 326 DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 327 RELOCATING=" "
 328 LD_FLAG=
 329 ( echo "/* Default linker script, for normal executables */"
 330   . ${CUSTOMIZER_SCRIPT}
 331   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 332 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.x
 333
 334 LD_FLAG=textonly
 335 ( echo "/* Script for -z separate-code: generate normal executables with separate code segment */"
 336   . ${CUSTOMIZER_SCRIPT}
 337   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 338 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xe
 339
 340 if test -n "$GENERATE_RELRO_SCRIPT"; then
 341     LD_FLAG=
 342     RELRO=" "
 343     ( echo "/* Script for -z relo: generate normal executables with separate code segment */"
 344       . ${CUSTOMIZER_SCRIPT}
 345       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 346     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xo
 347     LD_FLAG=textonly
 348     ( echo "/* Script for -z separate-code -z relo: generate normal executables with separate code segment */"
 349       . ${CUSTOMIZER_SCRIPT}
 350       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 351     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xeo
 352     unset RELRO
 353 fi
 354 LD_FLAG=n
 355 DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
 356 ( echo "/* Script for -n: mix text and data on same page */"
 357   . ${CUSTOMIZER_SCRIPT}
 358   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 359 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xn
 360
 361 LD_FLAG=N
 362 DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
 363 ( echo "/* Script for -N: mix text and data on same page; don't align data */"
 364   . ${CUSTOMIZER_SCRIPT}
 365   . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 366 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xbn
 367
 368 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 369   DATA_ALIGNMENT=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
 370   LD_FLAG=c
 371   COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
 372   ( echo "/* Script for -z combreloc: combine and sort reloc sections */"
 373     . ${CUSTOMIZER_SCRIPT}
 374     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 375   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xc
 376   rm -f ${COMBRELOC}
 377   LD_FLAG=ctextonly
 378   COMBRELOC=ldscripts/${EMULATION_NAME}.xce.tmp
 379   ( echo "/* Script for -z combreloc -z separate-code: combine and sort reloc sections with separate code segment */"
 380     . ${CUSTOMIZER_SCRIPT}
 381     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 382   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xce
 383   rm -f ${COMBRELOC}
 384   RELRO_NOW=" "
 385   LD_FLAG=w
 386   COMBRELOC=ldscripts/${EMULATION_NAME}.xw.tmp
 387   ( echo "/* Script for -z combreloc -z now -z relro: combine and sort reloc sections */"
 388     . ${CUSTOMIZER_SCRIPT}
 389     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 390   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xw
 391   rm -f ${COMBRELOC}
 392   LD_FLAG=wtextonly
 393   COMBRELOC=ldscripts/${EMULATION_NAME}.xwe.tmp
 394   ( echo "/* Script for -z combreloc -z now -z relro -z separate-code: combine and sort reloc sections with separate code segment */"
 395     . ${CUSTOMIZER_SCRIPT}
 396     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 397   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xwe
 398   rm -f ${COMBRELOC}
 399   COMBRELOC=
 400   unset RELRO_NOW
 401   if test -n "$GENERATE_RELRO_SCRIPT"; then
 402       LD_FLAG=c
 403       RELRO=" "
 404       COMBRELOC=ldscripts/${EMULATION_NAME}.xco.tmp
 405       ( echo "/* Script for -z combreloc -z relro: combine and sort reloc sections */"
 406         . ${CUSTOMIZER_SCRIPT}
 407         . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 408       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xco
 409       rm -f ${COMBRELOC}
 410       LD_FLAG=ctextonly
 411       COMBRELOC=ldscripts/${EMULATION_NAME}.xceo.tmp
 412       ( echo "/* Script for -z combreloc -z separate-code -z relro: combine and sort reloc sections */"
 413         . ${CUSTOMIZER_SCRIPT}
 414         . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 415       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xceo
 416       rm -f ${COMBRELOC}
 417       COMBRELOC=
 418       unset RELRO
 419   fi
 420 fi
 421
 422 if test -n "$GENERATE_SHLIB_SCRIPT"; then
 423   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
 424   CREATE_SHLIB=" "
 425   LD_FLAG=shared
 426   (
 427     echo "/* Script for ld --shared: link shared library */"
 428     . ${CUSTOMIZER_SCRIPT}
 429     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 430   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xs
 431   LD_FLAG=sharedtextonly
 432   (
 433     echo "/* Script for ld --shared -z separate-code: link shared library with separate code segment */"
 434     . ${CUSTOMIZER_SCRIPT}
 435     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 436   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xse
 437
 438   if test -n "$GENERATE_RELRO_SCRIPT"; then
 439       RELRO=" "
 440       LD_FLAG=shared
 441       (
 442           echo "/* Script for ld --shared -z relro: link shared library */"
 443           . ${CUSTOMIZER_SCRIPT}
 444           . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 445       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xso
 446       LD_FLAG=sharedtextonly
 447       (
 448           echo "/* Script for ld --shared -z relro -z separate-code: link shared library with separate code segment */"
 449           . ${CUSTOMIZER_SCRIPT}
 450           . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 451       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xseo
 452       unset RELRO
 453   fi
 454   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 455     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
 456     LD_FLAG=cshared
 457     COMBRELOC=ldscripts/${EMULATION_NAME}.xsc.tmp
 458     ( echo "/* Script for --shared -z combreloc: shared library, combine & sort relocs */"
 459       . ${CUSTOMIZER_SCRIPT}
 460       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 461     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsc
 462     rm -f ${COMBRELOC}
 463     LD_FLAG=csharedtextonly
 464     COMBRELOC=ldscripts/${EMULATION_NAME}.xsce.tmp
 465     ( echo "/* Script for --shared -z combreloc -z separate-code: shared library, combine & sort relocs with separate code segment */"
 466       . ${CUSTOMIZER_SCRIPT}
 467       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 468     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsce
 469     rm -f ${COMBRELOC}
 470     RELRO_NOW=" "
 471     LD_FLAG=wshared
 472     COMBRELOC=ldscripts/${EMULATION_NAME}.xsw.tmp
 473     ( echo "/* Script for --shared -z combreloc -z now -z relro: shared library, combine & sort relocs */"
 474       . ${CUSTOMIZER_SCRIPT}
 475       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 476     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsw
 477     rm -f ${COMBRELOC}
 478     LD_FLAG=wsharedtextonly
 479     COMBRELOC=ldscripts/${EMULATION_NAME}.xswe.tmp
 480     ( echo "/* Script for --shared -z combreloc -z now -z relro -z separate-code: shared library, combine & sort relocs with separate code segment */"
 481       . ${CUSTOMIZER_SCRIPT}
 482       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 483     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xswe
 484     rm -f ${COMBRELOC}
 485     unset RELRO_NOW
 486
 487     if test -n "$GENERATE_RELRO_SCRIPT"; then
 488         LD_FLAG=wshared
 489         RELRO=" "
 490         COMBRELOC=ldscripts/${EMULATION_NAME}.xsco.tmp
 491         ( echo "/* Script for --shared -z combreloc -z relro: shared library, combine & sort relocs with separate code segment */"
 492           . ${CUSTOMIZER_SCRIPT}
 493           . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 494         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xsco
 495         rm -f ${COMBRELOC}
 496         LD_FLAG=wsharedtextonly
 497         COMBRELOC=ldscripts/${EMULATION_NAME}.xsceo.tmp
 498         ( echo "/* Script for --shared -z combreloc -z relro -z separate-code: shared library, combine & sort relocs with separate code segment */"
 499           . ${CUSTOMIZER_SCRIPT}
 500           . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 501         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xsceo
 502         rm -f ${COMBRELOC}
 503         unset RELRO
 504     fi
 505     COMBRELOC=
 506   fi
 507   unset CREATE_SHLIB
 508 fi
 509
 510 if test -n "$GENERATE_PIE_SCRIPT"; then
 511   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
 512   CREATE_PIE=" "
 513   LD_FLAG=pie
 514   (
 515     echo "/* Script for ld -pie: link position independent executable */"
 516     . ${CUSTOMIZER_SCRIPT}
 517     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 518   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xd
 519   LD_FLAG=pietextonly
 520   (
 521     echo "/* Script for ld -pie -z separate-code: link position independent executable with separate code segment */"
 522     . ${CUSTOMIZER_SCRIPT}
 523     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 524   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xde
 525   if test -n "$GENERATE_RELRO_SCRIPT"; then
 526       RELRO=" "
 527       LD_FLAG=pie
 528       (
 529           echo "/* Script for ld -pie -z relro: link position independent executable */"
 530           . ${CUSTOMIZER_SCRIPT}
 531           . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 532       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xdo
 533       LD_FLAG=pietextonly
 534       (
 535           echo "/* Script for ld -pie -z relro -z separate-code: link position independent executable with separate code segment */"
 536           . ${CUSTOMIZER_SCRIPT}
 537           . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 538       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xdeo
 539       unset RELRO
 540   fi
 541   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 542     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
 543     COMBRELOC=ldscripts/${EMULATION_NAME}.xdc.tmp
 544     LD_FLAG=cpie
 545     ( echo "/* Script for -pie -z combreloc: position independent executable, combine & sort relocs */"
 546       . ${CUSTOMIZER_SCRIPT}
 547       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 548     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdc
 549     rm -f ${COMBRELOC}
 550     LD_FLAG=cpietextonly
 551     COMBRELOC=ldscripts/${EMULATION_NAME}.xdce.tmp
 552     ( echo "/* Script for -pie -z combreloc -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 553       . ${CUSTOMIZER_SCRIPT}
 554       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 555     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdce
 556     rm -f ${COMBRELOC}
 557     RELRO_NOW=" "
 558     LD_FLAG=wpie
 559     COMBRELOC=ldscripts/${EMULATION_NAME}.xdw.tmp
 560     ( echo "/* Script for -pie -z combreloc -z now -z relro: position independent executable, combine & sort relocs */"
 561       . ${CUSTOMIZER_SCRIPT}
 562       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 563     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdw
 564     rm -f ${COMBRELOC}
 565     LD_FLAG=wpietextonly
 566     COMBRELOC=ldscripts/${EMULATION_NAME}.xdwe.tmp
 567     ( echo "/* Script for -pie -z combreloc -z now -z relro -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 568       . ${CUSTOMIZER_SCRIPT}
 569       . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 570     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdwe
 571     rm -f ${COMBRELOC}
 572     unset RELRO_NOW
 573
 574     if test -n "$GENERATE_RELRO_SCRIPT"; then
 575         LD_FLAG=wpie
 576         RELRO=" "
 577         COMBRELOC=ldscripts/${EMULATION_NAME}.xdco.tmp
 578         ( echo "/* Script for -pie -z combreloc -z relro: position independent executable, combine & sort relocs with separate code segment */"
 579           . ${CUSTOMIZER_SCRIPT}
 580           . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 581         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xdco
 582         rm -f ${COMBRELOC}
 583         LD_FLAG=wpietextonly
 584         COMBRELOC=ldscripts/${EMULATION_NAME}.xdceo.tmp
 585         ( echo "/* Script for -pie -z combreloc -z relro -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 586           . ${CUSTOMIZER_SCRIPT}
 587           . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 588         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xdceo
 589         rm -f ${COMBRELOC}
 590
 591         unset RELRO
 592     fi
 593     COMBRELOC=
 594   fi
 595   unset CREATE_PIE
 596 fi
 597
 598 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT"; then
 599   LD_FLAG=auto_import
 600   DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 601   (
 602     echo "/* Script for ld --enable-auto-import: Like the default script except read only data is placed into .data  */"
 603     . ${CUSTOMIZER_SCRIPT}
 604     . ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 605   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xa
 606 fi
 607
 608 case "$COMPILE_IN: $EMULATION_LIBPATH " in
 609     :*" ${EMULATION_NAME} "*) COMPILE_IN=yes;;
 610 esac
 611
 612 # PR ld/5652:
 613 # Determine if the shell has support for the variable BASH_LINENO.
 614 # When it is the case, it is only available inside functions.
 615 has_lineno()
 616 {
 617   test "x$BASH_LINENO" != "x"
 618 }
 619
 620 # Enable accruate error source in the compiler error messages, if possible.
 621 if has_lineno; then
 622   . ${srcdir}/genscrba.sh
 623 else
 624   source_em()
 625   {
 626     . $1
 627   }
 628   fragment()
 629   {
 630     cat >> e${EMULATION_NAME}.c
 631   }
 632 fi
 633
 634 # Generate e${EMULATION_NAME}.c.
 635 # Start with an empty file, then the sourced .em script
 636 # can use the "fragment" function to append.
 637 > e${EMULATION_NAME}.c
 638 source_em ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em