ld/genscripts.sh

   1 #!/bin/sh
   2 # genscripts.sh - generate the ld-emulation-target specific files
   3 # Copyright (C) 2004-2020 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 relro -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 relro -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 relro -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 DEPDIR=$8
 120 shift 8
 121 LIB_PATH=$1
 122 EMULATION_LIBPATH=$2
 123 NATIVE_LIB_DIRS=$3
 124 use_sysroot=$4
 125 ENABLE_INITFINI_ARRAY=$5
 126 shift 5
 127 EMULATION_NAME=$1
 128 TOOL_LIB=$2
 129
 130 source_sh()
 131 {
 132   if test -n "${DEPDIR}"; then
 133     echo $1 >> ${DEPDIR}/e${EMULATION_NAME}.Tc
 134   fi
 135   . $1
 136 }
 137
 138 if test -n "${DEPDIR}"; then
 139   rm -f ${DEPDIR}/e${EMULATION_NAME}.Tc
 140 fi
 141
 142 # Include the emulation-specific parameters:
 143 CUSTOMIZER_SCRIPT="${srcdir}/emulparams/${EMULATION_NAME}.sh"
 144 source_sh ${CUSTOMIZER_SCRIPT}
 145
 146 if test -d ldscripts; then
 147   true
 148 else
 149   mkdir ldscripts
 150 fi
 151
 152 # Set some flags for the emultempl scripts.  USE_LIBPATH will
 153 # be set for any libpath-using emulation; NATIVE will be set for a
 154 # libpath-using emulation where ${host} = ${target}.  NATIVE
 155 # may already have been set by the emulparams file, but that's OK
 156 # (it'll just get set to "yes" twice).
 157
 158 case " $EMULATION_LIBPATH " in
 159   *" ${EMULATION_NAME} "*)
 160     if [ "x${host}" = "x${target}" ] ; then
 161       NATIVE=yes
 162       USE_LIBPATH=yes
 163     elif [ "x${use_sysroot}" = "xyes" ] ; then
 164       USE_LIBPATH=yes
 165     fi
 166     ;;
 167 esac
 168
 169 # If the emulparams file sets NATIVE, make sure USE_LIBPATH is set also.
 170 if test "x$NATIVE" = "xyes" ; then
 171   USE_LIBPATH=yes
 172 fi
 173
 174 # Set the library search path, for libraries named by -lfoo.
 175 # If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
 176 # Otherwise, the default is set here.
 177 #
 178 # The format is the usual list of colon-separated directories.
 179 # To force a logically empty LIB_PATH, do LIBPATH=":".
 180 #
 181 # If we are using a sysroot, prefix library paths with "=" to indicate this.
 182 #
 183 # If the emulparams file set LIBPATH_SUFFIX, prepend an extra copy of
 184 # the library path with the suffix applied.
 185
 186 # Paths with LIBPATH_SUFFIX
 187 lib_path1=
 188 # Paths without LIBPATH_SUFFIX
 189 lib_path2=
 190 if [ "${LIB_PATH}" != ":" ] ; then
 191   lib_path2=${LIB_PATH}
 192 fi
 193
 194 # Add args to lib_path1 and lib_path2, discarding any duplicates
 195 append_to_lib_path()
 196 {
 197   if [ $# != 0 ]; then
 198     for lib in "$@"; do
 199       # The "=" is harmless if we aren't using a sysroot, but also needless.
 200       if [ "x${use_sysroot}" = "xyes" ] ; then
 201         lib="=${lib}"
 202       fi
 203       skip_lib=no
 204       for libpath_suffix in ${LIBPATH_SUFFIX}; do
 205         case "${lib}" in
 206           *${libpath_suffix})
 207             case :${lib_path1}: in
 208               *:${lib}:*) ;;
 209               ::) lib_path1=${lib} ;;
 210               *) lib_path1=${lib_path1}:${lib} ;;
 211             esac ;;
 212           *)
 213             if test -n "${LIBPATH_SUFFIX_SKIP}"; then
 214               case "${lib}" in
 215                 *${LIBPATH_SUFFIX_SKIP}) skip_lib=yes ;;
 216               esac
 217             fi
 218             if test "${skip_lib}" = "no"; then
 219               case :${lib_path1}: in
 220                 *:${lib}${libpath_suffix}:*) ;;
 221                 ::) lib_path1=${lib}${libpath_suffix} ;;
 222                 *) lib_path1=${lib_path1}:${lib}${libpath_suffix} ;;
 223               esac
 224             fi ;;
 225         esac
 226       done
 227       if test "${skip_lib}" = "no"; then
 228         case :${lib_path1}:${lib_path2}: in
 229           *:${lib}:*) ;;
 230           *::) lib_path2=${lib} ;;
 231           *) lib_path2=${lib_path2}:${lib} ;;
 232         esac
 233       fi
 234     done
 235   fi
 236 }
 237
 238 # Always search $(tooldir)/lib, aka /usr/local/TARGET/lib when native
 239 # except when LIBPATH=":".
 240 if [ "${LIB_PATH}" != ":" ] ; then
 241   libs=
 242   if [ "x${TOOL_LIB}" = "x" ] ; then
 243     if [ "x${NATIVE}" = "xyes" ] ; then
 244       libs="${exec_prefix}/${target_alias}/lib"
 245     fi
 246   else
 247     # For multilib'ed targets, ensure both ${target_alias}/lib${LIBPATH_SUFFIX}
 248     # and ${TOOL_LIB}/lib${LIBPATH_SUFFIX} are in the default search path,
 249     # because 64bit libraries may be in both places, depending on
 250     # cross-development setup method (e.g.: /usr/s390x-linux/lib64
 251     # vs. /usr/s390-linux/lib64)
 252     for libpath_suffix in ${LIBPATH_SUFFIX}; do
 253       case "${NATIVE}:${libpath_suffix}:${TOOL_LIB}" in
 254         :* | *::* | *:*:*${libpath_suffix}) ;;
 255         *) libs="${exec_prefix}/${target_alias}/lib${libpath_suffix}" ;;
 256       esac
 257     done
 258     libs="${exec_prefix}/${TOOL_LIB}/lib ${libs}"
 259   fi
 260   append_to_lib_path ${libs}
 261 fi
 262
 263 if [ "x${LIB_PATH}" = "x" ] && [ "x${USE_LIBPATH}" = xyes ] ; then
 264   libs=${NATIVE_LIB_DIRS}
 265   if [ "x${NATIVE}" = "xyes" ] ; then
 266     case " ${libs} " in
 267       *" ${libdir} "*) ;;
 268       *) libs="${libdir} ${libs}" ;;
 269     esac
 270   fi
 271   append_to_lib_path ${libs}
 272 fi
 273
 274 case :${lib_path1}:${lib_path2}: in
 275   *:: | ::*) LIB_PATH=${lib_path1}${lib_path2} ;;
 276   *) LIB_PATH=${lib_path1}:${lib_path2} ;;
 277 esac
 278
 279 LIB_SEARCH_DIRS=`echo ${LIB_PATH} | sed -e 's/:/ /g' -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\\"\1\\");/g'`
 280
 281 # We need it for testsuite.
 282 set $EMULATION_LIBPATH
 283 if [ "x$1" = "x$EMULATION_NAME" ]; then
 284     test -d tmpdir || mkdir tmpdir
 285     rm -f tmpdir/libpath.exp
 286     echo "set libpath \"${LIB_PATH}\"" | sed -e 's/:/ /g' > tmpdir/libpath.exp
 287 fi
 288
 289 if [ "x$SCRIPT_NAME" = "xelf" ]; then
 290   GENERATE_COMBRELOC_SCRIPT=yes
 291 fi
 292
 293 SEGMENT_SIZE=${SEGMENT_SIZE-${MAXPAGESIZE-${TARGET_PAGE_SIZE}}}
 294
 295 # Determine DATA_ALIGNMENT for the 5 variants, using
 296 # values specified in the emulparams/<script_to_run>.sh file or default.
 297
 298 DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}"
 299 DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}"
 300 DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
 301 DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
 302 DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
 303
 304 LD_FLAG=r
 305 DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
 306 DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
 307 ( echo "/* Script for -r */"
 308   source_sh ${CUSTOMIZER_SCRIPT}
 309   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 310 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xr
 311
 312 LD_FLAG=u
 313 DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
 314 CONSTRUCTING=" "
 315 ( echo "/* Script for -Ur */"
 316   source_sh ${CUSTOMIZER_SCRIPT}
 317   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 318 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xu
 319
 320 DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 321 RELOCATING=" "
 322 LD_FLAG=
 323 ( echo "/* Default linker script, for normal executables */"
 324   source_sh ${CUSTOMIZER_SCRIPT}
 325   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 326 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.x
 327
 328 LD_FLAG=textonly
 329 ( echo "/* Script for -z separate-code */"
 330   source_sh ${CUSTOMIZER_SCRIPT}
 331   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 332 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xe
 333
 334 if test -n "$GENERATE_RELRO_SCRIPT"; then
 335     LD_FLAG=
 336     RELRO=" "
 337     ( echo "/* Script for -z relro */"
 338       source_sh ${CUSTOMIZER_SCRIPT}
 339       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 340     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xo
 341     LD_FLAG=textonly
 342     ( echo "/* Script for -z separate-code -z relro */"
 343       source_sh ${CUSTOMIZER_SCRIPT}
 344       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 345     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xeo
 346     unset RELRO
 347 fi
 348 LD_FLAG=n
 349 DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
 350 ( echo "/* Script for -n */"
 351   source_sh ${CUSTOMIZER_SCRIPT}
 352   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 353 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xn
 354
 355 LD_FLAG=N
 356 DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
 357 ( echo "/* Script for -N */"
 358   source_sh ${CUSTOMIZER_SCRIPT}
 359   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 360 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xbn
 361
 362 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 363   DATA_ALIGNMENT=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
 364   LD_FLAG=c
 365   COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
 366   ( echo "/* Script for -z combreloc */"
 367     source_sh ${CUSTOMIZER_SCRIPT}
 368     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 369   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xc
 370   rm -f ${COMBRELOC}
 371   LD_FLAG=ctextonly
 372   COMBRELOC=ldscripts/${EMULATION_NAME}.xce.tmp
 373   ( echo "/* Script for -z combreloc -z separate-code */"
 374     source_sh ${CUSTOMIZER_SCRIPT}
 375     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 376   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xce
 377   rm -f ${COMBRELOC}
 378   RELRO_NOW=" "
 379   LD_FLAG=w
 380   COMBRELOC=ldscripts/${EMULATION_NAME}.xw.tmp
 381   ( echo "/* Script for -z combreloc -z relro -z now */"
 382     source_sh ${CUSTOMIZER_SCRIPT}
 383     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 384   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xw
 385   rm -f ${COMBRELOC}
 386   LD_FLAG=wtextonly
 387   COMBRELOC=ldscripts/${EMULATION_NAME}.xwe.tmp
 388   ( echo "/* Script for -z combreloc -z separate-code -z relro -z now */"
 389     source_sh ${CUSTOMIZER_SCRIPT}
 390     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 391   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xwe
 392   rm -f ${COMBRELOC}
 393   COMBRELOC=
 394   unset RELRO_NOW
 395   if test -n "$GENERATE_RELRO_SCRIPT"; then
 396       LD_FLAG=c
 397       RELRO=" "
 398       COMBRELOC=ldscripts/${EMULATION_NAME}.xco.tmp
 399       ( echo "/* Script for -z combreloc -z relro */"
 400         source_sh ${CUSTOMIZER_SCRIPT}
 401         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 402       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xco
 403       rm -f ${COMBRELOC}
 404       LD_FLAG=ctextonly
 405       COMBRELOC=ldscripts/${EMULATION_NAME}.xceo.tmp
 406       ( echo "/* Script for -z combreloc -z separate-code -z relro */"
 407         source_sh ${CUSTOMIZER_SCRIPT}
 408         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 409       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xceo
 410       rm -f ${COMBRELOC}
 411       COMBRELOC=
 412       unset RELRO
 413   fi
 414 fi
 415
 416 if test -n "$GENERATE_SHLIB_SCRIPT"; then
 417   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
 418   CREATE_SHLIB=" "
 419   LD_FLAG=shared
 420   ( echo "/* Script for -shared */"
 421     source_sh ${CUSTOMIZER_SCRIPT}
 422     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 423   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xs
 424   LD_FLAG=sharedtextonly
 425   ( echo "/* Script for -shared -z separate-code */"
 426     source_sh ${CUSTOMIZER_SCRIPT}
 427     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 428   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xse
 429
 430   if test -n "$GENERATE_RELRO_SCRIPT"; then
 431       RELRO=" "
 432       LD_FLAG=shared
 433       ( echo "/* Script for -shared -z relro */"
 434         source_sh ${CUSTOMIZER_SCRIPT}
 435         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 436       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xso
 437       LD_FLAG=sharedtextonly
 438       ( echo "/* Script for -shared -z separate-code -z relro */"
 439         source_sh ${CUSTOMIZER_SCRIPT}
 440         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 441       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xseo
 442       unset RELRO
 443   fi
 444   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 445     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
 446     LD_FLAG=cshared
 447     COMBRELOC=ldscripts/${EMULATION_NAME}.xsc.tmp
 448     ( echo "/* Script for -shared -z combreloc */"
 449       source_sh ${CUSTOMIZER_SCRIPT}
 450       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 451     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsc
 452     rm -f ${COMBRELOC}
 453     LD_FLAG=csharedtextonly
 454     COMBRELOC=ldscripts/${EMULATION_NAME}.xsce.tmp
 455     ( echo "/* Script for -shared -z combreloc -z separate-code */"
 456       source_sh ${CUSTOMIZER_SCRIPT}
 457       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 458     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsce
 459     rm -f ${COMBRELOC}
 460     RELRO_NOW=" "
 461     LD_FLAG=wshared
 462     COMBRELOC=ldscripts/${EMULATION_NAME}.xsw.tmp
 463     ( echo "/* Script for -shared -z combreloc -z relro -z now */"
 464       source_sh ${CUSTOMIZER_SCRIPT}
 465       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 466     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsw
 467     rm -f ${COMBRELOC}
 468     LD_FLAG=wsharedtextonly
 469     COMBRELOC=ldscripts/${EMULATION_NAME}.xswe.tmp
 470     ( echo "/* Script for -shared -z combreloc -z separate-code -z relro -z now */"
 471       source_sh ${CUSTOMIZER_SCRIPT}
 472       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 473     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xswe
 474     rm -f ${COMBRELOC}
 475     unset RELRO_NOW
 476
 477     if test -n "$GENERATE_RELRO_SCRIPT"; then
 478         LD_FLAG=wshared
 479         RELRO=" "
 480         COMBRELOC=ldscripts/${EMULATION_NAME}.xsco.tmp
 481         ( echo "/* Script for -shared -z combreloc -z relro */"
 482           source_sh ${CUSTOMIZER_SCRIPT}
 483           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 484         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xsco
 485         rm -f ${COMBRELOC}
 486         LD_FLAG=wsharedtextonly
 487         COMBRELOC=ldscripts/${EMULATION_NAME}.xsceo.tmp
 488         ( echo "/* Script for -shared -z combreloc -z separate-code -z relro */"
 489           source_sh ${CUSTOMIZER_SCRIPT}
 490           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 491         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xsceo
 492         rm -f ${COMBRELOC}
 493         unset RELRO
 494     fi
 495     COMBRELOC=
 496   fi
 497   unset CREATE_SHLIB
 498 fi
 499
 500 if test -n "$GENERATE_PIE_SCRIPT"; then
 501   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
 502   CREATE_PIE=" "
 503   LD_FLAG=pie
 504   ( echo "/* Script for -pie */"
 505     source_sh ${CUSTOMIZER_SCRIPT}
 506     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 507   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xd
 508   LD_FLAG=pietextonly
 509   ( echo "/* Script for -pie -z separate-code */"
 510     source_sh ${CUSTOMIZER_SCRIPT}
 511     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 512   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xde
 513   if test -n "$GENERATE_RELRO_SCRIPT"; then
 514       RELRO=" "
 515       LD_FLAG=pie
 516       ( echo "/* Script for -pie -z relro */"
 517         source_sh ${CUSTOMIZER_SCRIPT}
 518         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 519       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xdo
 520       LD_FLAG=pietextonly
 521       ( echo "/* Script for -pie -z separate-code -z relro */"
 522         source_sh ${CUSTOMIZER_SCRIPT}
 523         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 524       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xdeo
 525       unset RELRO
 526   fi
 527   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 528     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
 529     COMBRELOC=ldscripts/${EMULATION_NAME}.xdc.tmp
 530     LD_FLAG=cpie
 531     ( echo "/* Script for -pie -z combreloc */"
 532       source_sh ${CUSTOMIZER_SCRIPT}
 533       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 534     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdc
 535     rm -f ${COMBRELOC}
 536     LD_FLAG=cpietextonly
 537     COMBRELOC=ldscripts/${EMULATION_NAME}.xdce.tmp
 538     ( echo "/* Script for -pie -z combreloc -z separate-code */"
 539       source_sh ${CUSTOMIZER_SCRIPT}
 540       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 541     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdce
 542     rm -f ${COMBRELOC}
 543     RELRO_NOW=" "
 544     LD_FLAG=wpie
 545     COMBRELOC=ldscripts/${EMULATION_NAME}.xdw.tmp
 546     ( echo "/* Script for -pie -z combreloc -z relro -z now */"
 547       source_sh ${CUSTOMIZER_SCRIPT}
 548       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 549     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdw
 550     rm -f ${COMBRELOC}
 551     LD_FLAG=wpietextonly
 552     COMBRELOC=ldscripts/${EMULATION_NAME}.xdwe.tmp
 553     ( echo "/* Script for -pie -z combreloc -z separate-code -z relro -z now */"
 554       source_sh ${CUSTOMIZER_SCRIPT}
 555       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 556     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdwe
 557     rm -f ${COMBRELOC}
 558     unset RELRO_NOW
 559
 560     if test -n "$GENERATE_RELRO_SCRIPT"; then
 561         LD_FLAG=wpie
 562         RELRO=" "
 563         COMBRELOC=ldscripts/${EMULATION_NAME}.xdco.tmp
 564         ( echo "/* Script for -pie -z combreloc -z relro */"
 565           source_sh ${CUSTOMIZER_SCRIPT}
 566           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 567         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xdco
 568         rm -f ${COMBRELOC}
 569         LD_FLAG=wpietextonly
 570         COMBRELOC=ldscripts/${EMULATION_NAME}.xdceo.tmp
 571         ( echo "/* Script for -pie -z combreloc -z separate-code -z relro */"
 572           source_sh ${CUSTOMIZER_SCRIPT}
 573           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 574         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xdceo
 575         rm -f ${COMBRELOC}
 576
 577         unset RELRO
 578     fi
 579     COMBRELOC=
 580   fi
 581   unset CREATE_PIE
 582 fi
 583
 584 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT"; then
 585   LD_FLAG=auto_import
 586   DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 587   ( echo "/* Script for --enable-auto-import */"
 588     source_sh ${CUSTOMIZER_SCRIPT}
 589     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 590   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xa
 591 fi
 592
 593 case "$COMPILE_IN: $EMULATION_LIBPATH " in
 594     :*" ${EMULATION_NAME} "*) COMPILE_IN=yes;;
 595 esac
 596
 597 # PR ld/5652:
 598 # Determine if the shell has support for the variable BASH_LINENO.
 599 # When it is the case, it is only available inside functions.
 600 has_lineno()
 601 {
 602   test "x$BASH_LINENO" != "x"
 603 }
 604
 605 # Enable accruate error source in the compiler error messages, if possible.
 606 if has_lineno; then
 607   . ${srcdir}/genscrba.sh
 608 else
 609   source_em()
 610   {
 611     source_sh $1
 612   }
 613   fragment()
 614   {
 615     cat >> e${EMULATION_NAME}.c
 616   }
 617 fi
 618
 619 # Generate e${EMULATION_NAME}.c.
 620 # Start with an empty file, then the sourced .em script
 621 # can use the "fragment" function to append.
 622 > e${EMULATION_NAME}.c
 623 source_em ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em
 624
 625 if test -n "${DEPDIR}"; then
 626   ecdeps=
 627   for dep in `cat ${DEPDIR}/e${EMULATION_NAME}.Tc`; do
 628     case " $ecdeps " in
 629       *" $dep "*): ;;
 630       *) ecdeps="$ecdeps $dep" ;;
 631     esac
 632   done
 633   rm -f ${DEPDIR}/e${EMULATION_NAME}.Tc
 634   echo "e${EMULATION_NAME}.c:${ecdeps}" > ${DEPDIR}/e${EMULATION_NAME}.Pc
 635 fi