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=$2
 129
 130 source_sh()
 131 {
 132   if test -n "${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 # Generate 5 or 6 script files from a master script template in
 290 # ${srcdir}/scripttempl/${SCRIPT_NAME}.sh.  Which one of the 5 or 6
 291 # script files is actually used depends on command line options given
 292 # to ld.  (SCRIPT_NAME was set in the emulparams_file.)
 293 #
 294 # A .x script file is the default script.
 295 # A .xr script is for linking without relocation (-r flag).
 296 # A .xu script is like .xr, but *do* create constructors (-Ur flag).
 297 # A .xn script is for linking with -n flag (mix text and data on same page).
 298 # A .xbn script is for linking with -N flag (mix text and data on same page).
 299 # A .xs script is for generating a shared library with the --shared
 300 #   flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the
 301 #   emulation parameters.
 302 # A .xc script is for linking with -z combreloc; it is only generated if
 303 #   $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
 304 #   $SCRIPT_NAME is "elf".
 305 # A .xsc script is for linking with --shared -z combreloc; it is generated
 306 #   if $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
 307 #   $SCRIPT_NAME is "elf" and $GENERATE_SHLIB_SCRIPT is set by the emulation
 308 #   parameters too.
 309
 310 if [ "x$SCRIPT_NAME" = "xelf" ]; then
 311   GENERATE_COMBRELOC_SCRIPT=yes
 312 fi
 313
 314 SEGMENT_SIZE=${SEGMENT_SIZE-${MAXPAGESIZE-${TARGET_PAGE_SIZE}}}
 315
 316 # Determine DATA_ALIGNMENT for the 5 variants, using
 317 # values specified in the emulparams/<script_to_run>.sh file or default.
 318
 319 DATA_ALIGNMENT_="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}"
 320 DATA_ALIGNMENT_n="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}"
 321 DATA_ALIGNMENT_N="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
 322 DATA_ALIGNMENT_r="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
 323 DATA_ALIGNMENT_u="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
 324
 325 LD_FLAG=r
 326 DATA_ALIGNMENT=${DATA_ALIGNMENT_r}
 327 DEFAULT_DATA_ALIGNMENT="ALIGN(${SEGMENT_SIZE})"
 328 ( echo "/* Script for ld -r: link without relocation */"
 329   source_sh ${CUSTOMIZER_SCRIPT}
 330   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 331 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xr
 332
 333 LD_FLAG=u
 334 DATA_ALIGNMENT=${DATA_ALIGNMENT_u}
 335 CONSTRUCTING=" "
 336 ( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
 337   source_sh ${CUSTOMIZER_SCRIPT}
 338   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 339 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xu
 340
 341 DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 342 RELOCATING=" "
 343 LD_FLAG=
 344 ( echo "/* Default linker script, for normal executables */"
 345   source_sh ${CUSTOMIZER_SCRIPT}
 346   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 347 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.x
 348
 349 LD_FLAG=textonly
 350 ( echo "/* Script for -z separate-code: generate normal executables with separate code segment */"
 351   source_sh ${CUSTOMIZER_SCRIPT}
 352   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 353 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xe
 354
 355 if test -n "$GENERATE_RELRO_SCRIPT"; then
 356     LD_FLAG=
 357     RELRO=" "
 358     ( echo "/* Script for -z relo: generate normal executables with separate code segment */"
 359       source_sh ${CUSTOMIZER_SCRIPT}
 360       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 361     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xo
 362     LD_FLAG=textonly
 363     ( echo "/* Script for -z separate-code -z relo: generate normal executables with separate code segment */"
 364       source_sh ${CUSTOMIZER_SCRIPT}
 365       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 366     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xeo
 367     unset RELRO
 368 fi
 369 LD_FLAG=n
 370 DATA_ALIGNMENT=${DATA_ALIGNMENT_n}
 371 ( echo "/* Script for -n: mix text and data on same page */"
 372   source_sh ${CUSTOMIZER_SCRIPT}
 373   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 374 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xn
 375
 376 LD_FLAG=N
 377 DATA_ALIGNMENT=${DATA_ALIGNMENT_N}
 378 ( echo "/* Script for -N: mix text and data on same page; don't align data */"
 379   source_sh ${CUSTOMIZER_SCRIPT}
 380   source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 381 ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xbn
 382
 383 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 384   DATA_ALIGNMENT=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
 385   LD_FLAG=c
 386   COMBRELOC=ldscripts/${EMULATION_NAME}.xc.tmp
 387   ( echo "/* Script for -z combreloc: combine and sort reloc sections */"
 388     source_sh ${CUSTOMIZER_SCRIPT}
 389     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 390   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xc
 391   rm -f ${COMBRELOC}
 392   LD_FLAG=ctextonly
 393   COMBRELOC=ldscripts/${EMULATION_NAME}.xce.tmp
 394   ( echo "/* Script for -z combreloc -z separate-code: combine and sort reloc sections with separate code segment */"
 395     source_sh ${CUSTOMIZER_SCRIPT}
 396     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 397   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xce
 398   rm -f ${COMBRELOC}
 399   RELRO_NOW=" "
 400   LD_FLAG=w
 401   COMBRELOC=ldscripts/${EMULATION_NAME}.xw.tmp
 402   ( echo "/* Script for -z combreloc -z now -z relro: combine and sort reloc sections */"
 403     source_sh ${CUSTOMIZER_SCRIPT}
 404     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 405   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xw
 406   rm -f ${COMBRELOC}
 407   LD_FLAG=wtextonly
 408   COMBRELOC=ldscripts/${EMULATION_NAME}.xwe.tmp
 409   ( echo "/* Script for -z combreloc -z now -z relro -z separate-code: combine and sort reloc sections with separate code segment */"
 410     source_sh ${CUSTOMIZER_SCRIPT}
 411     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 412   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xwe
 413   rm -f ${COMBRELOC}
 414   COMBRELOC=
 415   unset RELRO_NOW
 416   if test -n "$GENERATE_RELRO_SCRIPT"; then
 417       LD_FLAG=c
 418       RELRO=" "
 419       COMBRELOC=ldscripts/${EMULATION_NAME}.xco.tmp
 420       ( echo "/* Script for -z combreloc -z relro: combine and sort reloc sections */"
 421         source_sh ${CUSTOMIZER_SCRIPT}
 422         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 423       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xco
 424       rm -f ${COMBRELOC}
 425       LD_FLAG=ctextonly
 426       COMBRELOC=ldscripts/${EMULATION_NAME}.xceo.tmp
 427       ( echo "/* Script for -z combreloc -z separate-code -z relro: combine and sort reloc sections */"
 428         source_sh ${CUSTOMIZER_SCRIPT}
 429         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 430       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xceo
 431       rm -f ${COMBRELOC}
 432       COMBRELOC=
 433       unset RELRO
 434   fi
 435 fi
 436
 437 if test -n "$GENERATE_SHLIB_SCRIPT"; then
 438   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
 439   CREATE_SHLIB=" "
 440   LD_FLAG=shared
 441   ( echo "/* Script for ld --shared: link shared library */"
 442     source_sh ${CUSTOMIZER_SCRIPT}
 443     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 444   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xs
 445   LD_FLAG=sharedtextonly
 446   ( echo "/* Script for ld --shared -z separate-code: link shared library with separate code segment */"
 447     source_sh ${CUSTOMIZER_SCRIPT}
 448     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 449   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xse
 450
 451   if test -n "$GENERATE_RELRO_SCRIPT"; then
 452       RELRO=" "
 453       LD_FLAG=shared
 454       ( echo "/* Script for ld --shared -z relro: link shared library */"
 455         source_sh ${CUSTOMIZER_SCRIPT}
 456         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 457       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xso
 458       LD_FLAG=sharedtextonly
 459       ( echo "/* Script for ld --shared -z relro -z separate-code: link shared library with separate code segment */"
 460         source_sh ${CUSTOMIZER_SCRIPT}
 461         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 462       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xseo
 463       unset RELRO
 464   fi
 465   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 466     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
 467     LD_FLAG=cshared
 468     COMBRELOC=ldscripts/${EMULATION_NAME}.xsc.tmp
 469     ( echo "/* Script for --shared -z combreloc: shared library, combine & sort relocs */"
 470       source_sh ${CUSTOMIZER_SCRIPT}
 471       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 472     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsc
 473     rm -f ${COMBRELOC}
 474     LD_FLAG=csharedtextonly
 475     COMBRELOC=ldscripts/${EMULATION_NAME}.xsce.tmp
 476     ( echo "/* Script for --shared -z combreloc -z separate-code: shared library, combine & sort relocs with separate code segment */"
 477       source_sh ${CUSTOMIZER_SCRIPT}
 478       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 479     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsce
 480     rm -f ${COMBRELOC}
 481     RELRO_NOW=" "
 482     LD_FLAG=wshared
 483     COMBRELOC=ldscripts/${EMULATION_NAME}.xsw.tmp
 484     ( echo "/* Script for --shared -z combreloc -z now -z relro: shared library, combine & sort relocs */"
 485       source_sh ${CUSTOMIZER_SCRIPT}
 486       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 487     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xsw
 488     rm -f ${COMBRELOC}
 489     LD_FLAG=wsharedtextonly
 490     COMBRELOC=ldscripts/${EMULATION_NAME}.xswe.tmp
 491     ( echo "/* Script for --shared -z combreloc -z now -z relro -z separate-code: shared library, combine & sort relocs with separate code segment */"
 492       source_sh ${CUSTOMIZER_SCRIPT}
 493       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 494     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xswe
 495     rm -f ${COMBRELOC}
 496     unset RELRO_NOW
 497
 498     if test -n "$GENERATE_RELRO_SCRIPT"; then
 499         LD_FLAG=wshared
 500         RELRO=" "
 501         COMBRELOC=ldscripts/${EMULATION_NAME}.xsco.tmp
 502         ( echo "/* Script for --shared -z combreloc -z relro: shared library, combine & sort relocs with separate code segment */"
 503           source_sh ${CUSTOMIZER_SCRIPT}
 504           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 505         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xsco
 506         rm -f ${COMBRELOC}
 507         LD_FLAG=wsharedtextonly
 508         COMBRELOC=ldscripts/${EMULATION_NAME}.xsceo.tmp
 509         ( echo "/* Script for --shared -z combreloc -z relro -z separate-code: shared library, combine & sort relocs with separate code segment */"
 510           source_sh ${CUSTOMIZER_SCRIPT}
 511           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 512         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xsceo
 513         rm -f ${COMBRELOC}
 514         unset RELRO
 515     fi
 516     COMBRELOC=
 517   fi
 518   unset CREATE_SHLIB
 519 fi
 520
 521 if test -n "$GENERATE_PIE_SCRIPT"; then
 522   DATA_ALIGNMENT=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
 523   CREATE_PIE=" "
 524   LD_FLAG=pie
 525   ( echo "/* Script for ld -pie: link position independent executable */"
 526     source_sh ${CUSTOMIZER_SCRIPT}
 527     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 528   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xd
 529   LD_FLAG=pietextonly
 530   ( echo "/* Script for ld -pie -z separate-code: link position independent executable with separate code segment */"
 531     source_sh ${CUSTOMIZER_SCRIPT}
 532     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 533   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xde
 534   if test -n "$GENERATE_RELRO_SCRIPT"; then
 535       RELRO=" "
 536       LD_FLAG=pie
 537       ( echo "/* Script for ld -pie -z relro: link position independent executable */"
 538         source_sh ${CUSTOMIZER_SCRIPT}
 539         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 540       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xdo
 541       LD_FLAG=pietextonly
 542       ( echo "/* Script for ld -pie -z relro -z separate-code: link position independent executable with separate code segment */"
 543         source_sh ${CUSTOMIZER_SCRIPT}
 544         source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 545       ) | sed -e '/^ *$/d;s/[    ]*$//' > ldscripts/${EMULATION_NAME}.xdeo
 546       unset RELRO
 547   fi
 548   if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
 549     DATA_ALIGNMENT=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
 550     COMBRELOC=ldscripts/${EMULATION_NAME}.xdc.tmp
 551     LD_FLAG=cpie
 552     ( echo "/* Script for -pie -z combreloc: position independent executable, combine & sort relocs */"
 553       source_sh ${CUSTOMIZER_SCRIPT}
 554       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 555     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdc
 556     rm -f ${COMBRELOC}
 557     LD_FLAG=cpietextonly
 558     COMBRELOC=ldscripts/${EMULATION_NAME}.xdce.tmp
 559     ( echo "/* Script for -pie -z combreloc -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 560       source_sh ${CUSTOMIZER_SCRIPT}
 561       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 562     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdce
 563     rm -f ${COMBRELOC}
 564     RELRO_NOW=" "
 565     LD_FLAG=wpie
 566     COMBRELOC=ldscripts/${EMULATION_NAME}.xdw.tmp
 567     ( echo "/* Script for -pie -z combreloc -z now -z relro: position independent executable, combine & sort relocs */"
 568       source_sh ${CUSTOMIZER_SCRIPT}
 569       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 570     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdw
 571     rm -f ${COMBRELOC}
 572     LD_FLAG=wpietextonly
 573     COMBRELOC=ldscripts/${EMULATION_NAME}.xdwe.tmp
 574     ( echo "/* Script for -pie -z combreloc -z now -z relro -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 575       source_sh ${CUSTOMIZER_SCRIPT}
 576       source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 577     ) | sed -e '/^ *$/d;s/[      ]*$//' > ldscripts/${EMULATION_NAME}.xdwe
 578     rm -f ${COMBRELOC}
 579     unset RELRO_NOW
 580
 581     if test -n "$GENERATE_RELRO_SCRIPT"; then
 582         LD_FLAG=wpie
 583         RELRO=" "
 584         COMBRELOC=ldscripts/${EMULATION_NAME}.xdco.tmp
 585         ( echo "/* Script for -pie -z combreloc -z relro: position independent executable, combine & sort relocs with separate code segment */"
 586           source_sh ${CUSTOMIZER_SCRIPT}
 587           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 588         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xdco
 589         rm -f ${COMBRELOC}
 590         LD_FLAG=wpietextonly
 591         COMBRELOC=ldscripts/${EMULATION_NAME}.xdceo.tmp
 592         ( echo "/* Script for -pie -z combreloc -z relro -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
 593           source_sh ${CUSTOMIZER_SCRIPT}
 594           source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 595         ) | sed -e '/^ *$/d;s/[  ]*$//' > ldscripts/${EMULATION_NAME}.xdceo
 596         rm -f ${COMBRELOC}
 597
 598         unset RELRO
 599     fi
 600     COMBRELOC=
 601   fi
 602   unset CREATE_PIE
 603 fi
 604
 605 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT"; then
 606   LD_FLAG=auto_import
 607   DATA_ALIGNMENT=${DATA_ALIGNMENT_}
 608   ( echo "/* Script for ld --enable-auto-import: Like the default script except read only data is placed into .data  */"
 609     source_sh ${CUSTOMIZER_SCRIPT}
 610     source_sh ${srcdir}/scripttempl/${SCRIPT_NAME}.sc
 611   ) | sed -e '/^ *$/d;s/[        ]*$//' > ldscripts/${EMULATION_NAME}.xa
 612 fi
 613
 614 case "$COMPILE_IN: $EMULATION_LIBPATH " in
 615     :*" ${EMULATION_NAME} "*) COMPILE_IN=yes;;
 616 esac
 617
 618 # PR ld/5652:
 619 # Determine if the shell has support for the variable BASH_LINENO.
 620 # When it is the case, it is only available inside functions.
 621 has_lineno()
 622 {
 623   test "x$BASH_LINENO" != "x"
 624 }
 625
 626 # Enable accruate error source in the compiler error messages, if possible.
 627 if has_lineno; then
 628   . ${srcdir}/genscrba.sh
 629 else
 630   source_em()
 631   {
 632     source_sh $1
 633   }
 634   fragment()
 635   {
 636     cat >> e${EMULATION_NAME}.c
 637   }
 638 fi
 639
 640 # Generate e${EMULATION_NAME}.c.
 641 # Start with an empty file, then the sourced .em script
 642 # can use the "fragment" function to append.
 643 > e${EMULATION_NAME}.c
 644 source_em ${srcdir}/emultempl/${TEMPLATE_NAME-generic}.em
 645
 646 if test -n "${DEPDIR}"; then
 647   ecdeps=
 648   for dep in `cat ${DEPDIR}/e${EMULATION_NAME}.Tc`; do
 649     case " $ecdeps " in
 650       *" $dep "*): ;;
 651       *) ecdeps="$ecdeps $dep" ;;
 652     esac
 653   done
 654   rm -f ${DEPDIR}/e${EMULATION_NAME}.Tc
 655   echo "e${EMULATION_NAME}.c:${ecdeps}" > ${DEPDIR}/e${EMULATION_NAME}.Pc
 656 fi