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 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   echo $1 >> ${DEPDIR}/e${EMULATION_NAME}.Tc
 133   . $1
 134 }
 135
 136 rm -f ${DEPDIR}/e${EMULATION_NAME}.Tc
 137
 138 # Include the emulation-specific parameters:
 139 CUSTOMIZER_SCRIPT="${srcdir}/emulparams/${EMULATION_NAME}.sh"
 140 source_sh ${CUSTOMIZER_SCRIPT}
 141
 142 if test -d ldscripts; then
 143   true
 144 else
 145   mkdir ldscripts
 146 fi
 147
 148 # Set some flags for the emultempl scripts.  USE_LIBPATH will
 149 # be set for any libpath-using emulation; NATIVE will be set for a
 150 # libpath-using emulation where ${host} = ${target}.  NATIVE
 151 # may already have been set by the emulparams file, but that's OK
 152 # (it'll just get set to "yes" twice).
 153
 154 case " $EMULATION_LIBPATH " in
 155   *" ${EMULATION_NAME} "*)
 156     if [ "x${host}" = "x${target}" ] ; then
 157       NATIVE=yes
 158       USE_LIBPATH=yes
 159     elif [ "x${use_sysroot}" = "xyes" ] ; then
 160       USE_LIBPATH=yes
 161     fi
 162     ;;
 163 esac
 164
 165 # If the emulparams file sets NATIVE, make sure USE_LIBPATH is set also.
 166 if test "x$NATIVE" = "xyes" ; then
 167   USE_LIBPATH=yes
 168 fi
 169
 170 # Set the library search path, for libraries named by -lfoo.
 171 # If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
 172 # Otherwise, the default is set here.
 173 #
 174 # The format is the usual list of colon-separated directories.
 175 # To force a logically empty LIB_PATH, do LIBPATH=":".
 176 #
 177 # If we are using a sysroot, prefix library paths with "=" to indicate this.
 178 #
 179 # If the emulparams file set LIBPATH_SUFFIX, prepend an extra copy of
 180 # the library path with the suffix applied.
 181
 182 # Paths with LIBPATH_SUFFIX
 183 lib_path1=
 184 # Paths without LIBPATH_SUFFIX
 185 lib_path2=
 186 if [ "${LIB_PATH}" != ":" ] ; then
 187   lib_path2=${LIB_PATH}
 188 fi
 189
 190 # Add args to lib_path1 and lib_path2, discarding any duplicates
 191 append_to_lib_path()
 192 {
 193   if [ $# != 0 ]; then
 194     for lib in "$@"; do
 195       # The "=" is harmless if we aren't using a sysroot, but also needless.
 196       if [ "x${use_sysroot}" = "xyes" ] ; then
 197         lib="=${lib}"
 198       fi
 199       skip_lib=no
 200       for libpath_suffix in ${LIBPATH_SUFFIX}; do
 201         case "${lib}" in
 202           *${libpath_suffix})
 203             case :${lib_path1}: in
 204               *:${lib}:*) ;;
 205               ::) lib_path1=${lib} ;;
 206               *) lib_path1=${lib_path1}:${lib} ;;
 207             esac ;;
 208           *)
 209             if test -n "${LIBPATH_SUFFIX_SKIP}"; then
 210               case "${lib}" in
 211                 *${LIBPATH_SUFFIX_SKIP}) skip_lib=yes ;;
 212               esac
 213             fi
 214             if test "${skip_lib}" = "no"; then
 215               case :${lib_path1}: in
 216                 *:${lib}${libpath_suffix}:*) ;;
 217                 ::) lib_path1=${lib}${libpath_suffix} ;;
 218                 *) lib_path1=${lib_path1}:${lib}${libpath_suffix} ;;
 219               esac
 220             fi ;;
 221         esac
 222       done
 223       if test "${skip_lib}" = "no"; then
 224         case :${lib_path1}:${lib_path2}: in
 225           *:${lib}:*) ;;
 226           *::) lib_path2=${lib} ;;
 227           *) lib_path2=${lib_path2}:${lib} ;;
 228         esac
 229       fi
 230     done
 231   fi
 232 }
 233
 234 # Always search $(tooldir)/lib, aka /usr/local/TARGET/lib when native
 235 # except when LIBPATH=":".
 236 if [ "${LIB_PATH}" != ":" ] ; then
 237   libs=
 238   if [ "x${TOOL_LIB}" = "x" ] ; then
 239     if [ "x${NATIVE}" = "xyes" ] ; then
 240       libs="${exec_prefix}/${target_alias}/lib"
 241     fi
 242   else
 243     # For multilib'ed targets, ensure both ${target_alias}/lib${LIBPATH_SUFFIX}
 244     # and ${TOOL_LIB}/lib${LIBPATH_SUFFIX} are in the default search path,
 245     # because 64bit libraries may be in both places, depending on
 246     # cross-development setup method (e.g.: /usr/s390x-linux/lib64
 247     # vs. /usr/s390-linux/lib64)
 248     for libpath_suffix in ${LIBPATH_SUFFIX}; do
 249       case "${NATIVE}:${libpath_suffix}:${TOOL_LIB}" in
 250         :* | *::* | *:*:*${libpath_suffix}) ;;
 251         *) libs="${exec_prefix}/${target_alias}/lib${libpath_suffix}" ;;
 252       esac
 253     done
 254     libs="${exec_prefix}/${TOOL_LIB}/lib ${libs}"
 255   fi
 256   append_to_lib_path ${libs}
 257 fi
 258
 259 if [ "x${LIB_PATH}" = "x" ] && [ "x${USE_LIBPATH}" = xyes ] ; then
 260   libs=${NATIVE_LIB_DIRS}
 261   if [ "x${NATIVE}" = "xyes" ] ; then
 262     case " ${libs} " in
 263       *" ${libdir} "*) ;;
 264       *) libs="${libdir} ${libs}" ;;
 265     esac
 266   fi
 267   append_to_lib_path ${libs}
 268 fi
 269
 270 case :${lib_path1}:${lib_path2}: in
 271   *:: | ::*) LIB_PATH=${lib_path1}${lib_path2} ;;
 272   *) LIB_PATH=${lib_path1}:${lib_path2} ;;
 273 esac
 274
 275 LIB_SEARCH_DIRS=`echo ${LIB_PATH} | sed -e 's/:/ /g' -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\\"\1\\");/g'`
 276
 277 # We need it for testsuite.
 278 set $EMULATION_LIBPATH
 279 if [ "x$1" = "x$EMULATION_NAME" ]; then
 280     test -d tmpdir || mkdir tmpdir
 281     rm -f tmpdir/libpath.exp
 282     echo "set libpath \"${LIB_PATH}\"" | sed -e 's/:/ /g' > tmpdir/libpath.exp
 283 fi
 284
 285 # Generate 5 or 6 script files from a master script template in
 286 # ${srcdir}/scripttempl/${SCRIPT_NAME}.sh.  Which one of the 5 or 6
 287 # script files is actually used depends on command line options given
 288 # to ld.  (SCRIPT_NAME was set in the emulparams_file.)
 289 #
 290 # A .x script file is the default script.
 291 # A .xr script is for linking without relocation (-r flag).
 292 # A .xu script is like .xr, but *do* create constructors (-Ur flag).
 293 # A .xn script is for linking with -n flag (mix text and data on same page).
 294 # A .xbn script is for linking with -N flag (mix text and data on same page).
 295 # A .xs script is for generating a shared library with the --shared
 296 #   flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the
 297 #   emulation parameters.
 298 # A .xc script is for linking with -z combreloc; it is only generated if
 299 #   $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
 300 #   $SCRIPT_NAME is "elf".
 301 # A .xsc script is for linking with --shared -z combreloc; it is generated
 302 #   if $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
 303 #   $SCRIPT_NAME is "elf" and $GENERATE_SHLIB_SCRIPT is set by the emulation
 304 #   parameters too.
 305
 306 if [ "x$SCRIPT_NAME" = "xelf" ]; then
 307   GENERATE_COMBRELOC_SCRIPT=yes
 308 fi
 309
 310 SEGMENT_SIZE=${SEGMENT_SIZE-${MAXPAGESIZE-${TARGET_PAGE_SIZE}}}
 311
 312 # Determine DATA_ALIGNMENT for the 5 variants, using
 313 # values specified in the emulparams/<script_to_run>.sh file or default.
 314
 315 DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}"
 316 DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}"
 317 DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
 318 DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
 319 DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
 320
 321 LD_FLAG=r
 322 DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
 323 DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
 324 ( echo "/* Script for ld -r: link without relocation */"
 325   source_sh ${CUSTOMIZER_SCRIPT}
 326   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 327 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xr
 328
 329 LD_FLAG=u
 330 DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
 331 CONSTRUCTING=" "
 332 ( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
 333   source_sh ${CUSTOMIZER_SCRIPT}
 334   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 335 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xu
 336
 337 DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 338 RELOCATING=" "
 339 LD_FLAG=
 340 ( echo "/* Default linker script, for normal executables */"
 341   source_sh ${CUSTOMIZER_SCRIPT}
 342   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 343 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.x
 344
 345 LD_FLAG=textonly
 346 ( echo "/* Script for -z separate-code: generate normal executables with separate code segment */"
 347   source_sh ${CUSTOMIZER_SCRIPT}
 348   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 349 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xe
 350
 351 if test -n "$GENERATE_RELRO_SCRIPT"; then
 352     LD_FLAG=
 353     RELRO=" "
 354     ( echo "/* Script for -z relo: generate normal executables with separate code segment */"
 355       source_sh ${CUSTOMIZER_SCRIPT}
 356       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 357     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xo
 358     LD_FLAG=textonly
 359     ( echo "/* Script for -z separate-code -z relo: generate normal executables with separate code segment */"
 360       source_sh ${CUSTOMIZER_SCRIPT}
 361       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 362     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xeo
 363     unset RELRO
 364 fi
 365 LD_FLAG=n
 366 DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
 367 ( echo "/* Script for -n: mix text and data on same page */"
 368   source_sh ${CUSTOMIZER_SCRIPT}
 369   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 370 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xn
 371
 372 LD_FLAG=N
 373 DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
 374 ( echo "/* Script for -N: mix text and data on same page; don't align data */"
 375   source_sh ${CUSTOMIZER_SCRIPT}
 376   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 377 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xbn
 378
 379 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 380   DATA_ALIGNMENT=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
 381   LD_FLAG=c
 382   COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
 383   ( echo "/* Script for -z combreloc: combine and sort reloc sections */"
 384     source_sh ${CUSTOMIZER_SCRIPT}
 385     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 386   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xc
 387   rm -f ${COMBRELOC}
 388   LD_FLAG=ctextonly
 389   COMBRELOC=ldscripts/${EMULATION_NAME}.xce.tmp
 390   ( echo "/* Script for -z combreloc -z separate-code: combine and sort reloc sections with separate code segment */"
 391     source_sh ${CUSTOMIZER_SCRIPT}
 392     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 393   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xce
 394   rm -f ${COMBRELOC}
 395   RELRO_NOW=" "
 396   LD_FLAG=w
 397   COMBRELOC=ldscripts/${EMULATION_NAME}.xw.tmp
 398   ( echo "/* Script for -z combreloc -z now -z relro: combine and sort reloc sections */"
 399     source_sh ${CUSTOMIZER_SCRIPT}
 400     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 401   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xw
 402   rm -f ${COMBRELOC}
 403   LD_FLAG=wtextonly
 404   COMBRELOC=ldscripts/${EMULATION_NAME}.xwe.tmp
 405   ( echo "/* Script for -z combreloc -z now -z relro -z separate-code: combine and sort reloc sections with separate code segment */"
 406     source_sh ${CUSTOMIZER_SCRIPT}
 407     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 408   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xwe
 409   rm -f ${COMBRELOC}
 410   COMBRELOC=
 411   unset RELRO_NOW
 412   if test -n "$GENERATE_RELRO_SCRIPT"; then
 413       LD_FLAG=c
 414       RELRO=" "
 415       COMBRELOC=ldscripts/${EMULATION_NAME}.xco.tmp
 416       ( echo "/* Script for -z combreloc -z relro: combine and sort reloc sections */"
 417         source_sh ${CUSTOMIZER_SCRIPT}
 418         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 419       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xco
 420       rm -f ${COMBRELOC}
 421       LD_FLAG=ctextonly
 422       COMBRELOC=ldscripts/${EMULATION_NAME}.xceo.tmp
 423       ( echo "/* Script for -z combreloc -z separate-code -z relro: combine and sort reloc sections */"
 424         source_sh ${CUSTOMIZER_SCRIPT}
 425         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 426       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xceo
 427       rm -f ${COMBRELOC}
 428       COMBRELOC=
 429       unset RELRO
 430   fi
 431 fi
 432
 433 if test -n "$GENERATE_SHLIB_SCRIPT"; then
 434   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
 435   CREATE_SHLIB=" "
 436   LD_FLAG=shared
 437   ( echo "/* Script for ld --shared: link shared library */"
 438     source_sh ${CUSTOMIZER_SCRIPT}
 439     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 440   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xs
 441   LD_FLAG=sharedtextonly
 442   ( echo "/* Script for ld --shared -z separate-code: link shared library with separate code segment */"
 443     source_sh ${CUSTOMIZER_SCRIPT}
 444     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 445   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xse
 446
 447   if test -n "$GENERATE_RELRO_SCRIPT"; then
 448       RELRO=" "
 449       LD_FLAG=shared
 450       ( echo "/* Script for ld --shared -z relro: link shared library */"
 451         source_sh ${CUSTOMIZER_SCRIPT}
 452         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 453       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xso
 454       LD_FLAG=sharedtextonly
 455       ( echo "/* Script for ld --shared -z relro -z separate-code: link shared library with separate code segment */"
 456         source_sh ${CUSTOMIZER_SCRIPT}
 457         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 458       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xseo
 459       unset RELRO
 460   fi
 461   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 462     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
 463     LD_FLAG=cshared
 464     COMBRELOC=ldscripts/${EMULATION_NAME}.xsc.tmp
 465     ( echo "/* Script for --shared -z combreloc: shared library, combine & sort relocs */"
 466       source_sh ${CUSTOMIZER_SCRIPT}
 467       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 468     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsc
 469     rm -f ${COMBRELOC}
 470     LD_FLAG=csharedtextonly
 471     COMBRELOC=ldscripts/${EMULATION_NAME}.xsce.tmp
 472     ( echo "/* Script for --shared -z combreloc -z separate-code: shared library, combine & sort relocs with separate code segment */"
 473       source_sh ${CUSTOMIZER_SCRIPT}
 474       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 475     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsce
 476     rm -f ${COMBRELOC}
 477     RELRO_NOW=" "
 478     LD_FLAG=wshared
 479     COMBRELOC=ldscripts/${EMULATION_NAME}.xsw.tmp
 480     ( echo "/* Script for --shared -z combreloc -z now -z relro: shared library, combine & sort relocs */"
 481       source_sh ${CUSTOMIZER_SCRIPT}
 482       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 483     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsw
 484     rm -f ${COMBRELOC}
 485     LD_FLAG=wsharedtextonly
 486     COMBRELOC=ldscripts/${EMULATION_NAME}.xswe.tmp
 487     ( echo "/* Script for --shared -z combreloc -z now -z relro -z separate-code: shared library, combine & sort relocs with separate code segment */"
 488       source_sh ${CUSTOMIZER_SCRIPT}
 489       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 490     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xswe
 491     rm -f ${COMBRELOC}
 492     unset RELRO_NOW
 493
 494     if test -n "$GENERATE_RELRO_SCRIPT"; then
 495         LD_FLAG=wshared
 496         RELRO=" "
 497         COMBRELOC=ldscripts/${EMULATION_NAME}.xsco.tmp
 498         ( echo "/* Script for --shared -z combreloc -z relro: shared library, combine & sort relocs with separate code segment */"
 499           source_sh ${CUSTOMIZER_SCRIPT}
 500           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 501         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xsco
 502         rm -f ${COMBRELOC}
 503         LD_FLAG=wsharedtextonly
 504         COMBRELOC=ldscripts/${EMULATION_NAME}.xsceo.tmp
 505         ( echo "/* Script for --shared -z combreloc -z relro -z separate-code: shared library, combine & sort relocs with separate code segment */"
 506           source_sh ${CUSTOMIZER_SCRIPT}
 507           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 508         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xsceo
 509         rm -f ${COMBRELOC}
 510         unset RELRO
 511     fi
 512     COMBRELOC=
 513   fi
 514   unset CREATE_SHLIB
 515 fi
 516
 517 if test -n "$GENERATE_PIE_SCRIPT"; then
 518   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
 519   CREATE_PIE=" "
 520   LD_FLAG=pie
 521   ( echo "/* Script for ld -pie: link position independent executable */"
 522     source_sh ${CUSTOMIZER_SCRIPT}
 523     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 524   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xd
 525   LD_FLAG=pietextonly
 526   ( echo "/* Script for ld -pie -z separate-code: link position independent executable with separate code segment */"
 527     source_sh ${CUSTOMIZER_SCRIPT}
 528     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 529   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xde
 530   if test -n "$GENERATE_RELRO_SCRIPT"; then
 531       RELRO=" "
 532       LD_FLAG=pie
 533       ( echo "/* Script for ld -pie -z relro: link position independent executable */"
 534         source_sh ${CUSTOMIZER_SCRIPT}
 535         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 536       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xdo
 537       LD_FLAG=pietextonly
 538       ( echo "/* Script for ld -pie -z relro -z separate-code: link position independent executable with separate code segment */"
 539         source_sh ${CUSTOMIZER_SCRIPT}
 540         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 541       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xdeo
 542       unset RELRO
 543   fi
 544   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 545     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
 546     COMBRELOC=ldscripts/${EMULATION_NAME}.xdc.tmp
 547     LD_FLAG=cpie
 548     ( echo "/* Script for -pie -z combreloc: position independent executable, combine & sort relocs */"
 549       source_sh ${CUSTOMIZER_SCRIPT}
 550       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 551     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdc
 552     rm -f ${COMBRELOC}
 553     LD_FLAG=cpietextonly
 554     COMBRELOC=ldscripts/${EMULATION_NAME}.xdce.tmp
 555     ( echo "/* Script for -pie -z combreloc -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 556       source_sh ${CUSTOMIZER_SCRIPT}
 557       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 558     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdce
 559     rm -f ${COMBRELOC}
 560     RELRO_NOW=" "
 561     LD_FLAG=wpie
 562     COMBRELOC=ldscripts/${EMULATION_NAME}.xdw.tmp
 563     ( echo "/* Script for -pie -z combreloc -z now -z relro: position independent executable, combine & sort relocs */"
 564       source_sh ${CUSTOMIZER_SCRIPT}
 565       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 566     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdw
 567     rm -f ${COMBRELOC}
 568     LD_FLAG=wpietextonly
 569     COMBRELOC=ldscripts/${EMULATION_NAME}.xdwe.tmp
 570     ( echo "/* Script for -pie -z combreloc -z now -z relro -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 571       source_sh ${CUSTOMIZER_SCRIPT}
 572       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 573     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdwe
 574     rm -f ${COMBRELOC}
 575     unset RELRO_NOW
 576
 577     if test -n "$GENERATE_RELRO_SCRIPT"; then
 578         LD_FLAG=wpie
 579         RELRO=" "
 580         COMBRELOC=ldscripts/${EMULATION_NAME}.xdco.tmp
 581         ( echo "/* Script for -pie -z combreloc -z relro: position independent executable, combine & sort relocs with separate code segment */"
 582           source_sh ${CUSTOMIZER_SCRIPT}
 583           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 584         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xdco
 585         rm -f ${COMBRELOC}
 586         LD_FLAG=wpietextonly
 587         COMBRELOC=ldscripts/${EMULATION_NAME}.xdceo.tmp
 588         ( echo "/* Script for -pie -z combreloc -z relro -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 589           source_sh ${CUSTOMIZER_SCRIPT}
 590           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 591         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xdceo
 592         rm -f ${COMBRELOC}
 593
 594         unset RELRO
 595     fi
 596     COMBRELOC=
 597   fi
 598   unset CREATE_PIE
 599 fi
 600
 601 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT"; then
 602   LD_FLAG=auto_import
 603   DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 604   ( echo "/* Script for ld --enable-auto-import: Like the default script except read only data is placed into .data  */"
 605     source_sh ${CUSTOMIZER_SCRIPT}
 606     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 607   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xa
 608 fi
 609
 610 case "$COMPILE_IN: $EMULATION_LIBPATH " in
 611     :*" ${EMULATION_NAME} "*) COMPILE_IN=yes;;
 612 esac
 613
 614 # PR ld/5652:
 615 # Determine if the shell has support for the variable BASH_LINENO.
 616 # When it is the case, it is only available inside functions.
 617 has_lineno()
 618 {
 619   test "x$BASH_LINENO" != "x"
 620 }
 621
 622 # Enable accruate error source in the compiler error messages, if possible.
 623 if has_lineno; then
 624   . ${srcdir}/genscrba.sh
 625 else
 626   source_em()
 627   {
 628     source_sh $1
 629   }
 630   fragment()
 631   {
 632     cat >> e${EMULATION_NAME}.c
 633   }
 634 fi
 635
 636 # Generate e${EMULATION_NAME}.c.
 637 # Start with an empty file, then the sourced .em script
 638 # can use the "fragment" function to append.
 639 > e${EMULATION_NAME}.c
 640 source_em ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em
 641
 642 ecdeps=
 643 for dep in `cat ${DEPDIR}/e${EMULATION_NAME}.Tc`; do
 644   case " $ecdeps " in
 645     *" $dep "*): ;;
 646     *) ecdeps="$ecdeps $dep" ;;
 647   esac
 648 done
 649 rm -f ${DEPDIR}/e${EMULATION_NAME}.Tc
 650 echo "e${EMULATION_NAME}.c:${ecdeps}" > ${DEPDIR}/e${EMULATION_NAME}.Pc