2 # genscripts.sh - generate the ld-emulation-target specific files
3 # Copyright (C) 2004-2018 Free Software Foundation, Inc.
5 # This file is part of the Gnu Linker.
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)
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.
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
22 # Usage: genscripts_extra.sh \
33 # enable_initfini_array \
40 # genscripts_extra.sh \
45 # sparc-sun-sunos4.1.3 \
46 # sparc-sun-sunos4.1.3 \
47 # sparc-sun-sunos4.1.3 \
52 # sparc-sun-sunos4.1.3 \
55 # produces the linker scripts:
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"]
63 # sun3.xc [used when the linker is invoked with "-z combreloc"]
64 # sun3.xsc [used when the linker is invoked with "--shared"]
65 # sun3.xdc [used when the linker is invoked with "-pie"]
66 # sun3.xa [used when the linker is invoked with "--enable-auto-import"]
68 # It also produced the C source file:
72 # which is then compiled into the linker.
74 # The linker scripts are created by running the shell script
75 # /sources/ld/emulparams/sparc.sh to set the value of ${SCRIPT_NAME}
76 # (and any other variables it wants to). ${SCRIPT_NAME} is then
77 # invoked with a variable called ${LD_FLAG} to tell it which version
78 # of the linker script to create.
92 ENABLE_INITFINI_ARRAY
=$2
96 # Include the emulation-specific parameters:
97 CUSTOMIZER_SCRIPT
="${srcdir}/emulparams/${EMULATION_NAME}.sh"
98 .
${CUSTOMIZER_SCRIPT}
100 if test -d ldscripts
; then
106 # Set some flags for the emultempl scripts. USE_LIBPATH will
107 # be set for any libpath-using emulation; NATIVE will be set for a
108 # libpath-using emulation where ${host} = ${target}. NATIVE
109 # may already have been set by the emulparams file, but that's OK
110 # (it'll just get set to "yes" twice).
112 case " $EMULATION_LIBPATH " in
113 *" ${EMULATION_NAME} "*)
114 if [ "x${host}" = "x${target}" ] ; then
117 elif [ "x${use_sysroot}" = "xyes" ] ; then
123 # If the emulparams file sets NATIVE, make sure USE_LIBPATH is set also.
124 if test "x$NATIVE" = "xyes" ; then
128 # Set the library search path, for libraries named by -lfoo.
129 # If LIB_PATH is defined (e.g., by Makefile) and non-empty, it is used.
130 # Otherwise, the default is set here.
132 # The format is the usual list of colon-separated directories.
133 # To force a logically empty LIB_PATH, do LIBPATH=":".
135 # If we are using a sysroot, prefix library paths with "=" to indicate this.
137 # If the emulparams file set LIBPATH_SUFFIX, prepend an extra copy of
138 # the library path with the suffix applied.
140 # Paths with LIBPATH_SUFFIX
142 # Paths without LIBPATH_SUFFIX
144 if [ "${LIB_PATH}" != ":" ] ; then
145 lib_path2
=${LIB_PATH}
148 # Add args to lib_path1 and lib_path2, discarding any duplicates
153 # The "=" is harmless if we aren't using a sysroot, but also needless.
154 if [ "x${use_sysroot}" = "xyes" ] ; then
158 for libpath_suffix
in ${LIBPATH_SUFFIX}; do
161 case :${lib_path1}: in
163 ::) lib_path1
=${lib} ;;
164 *) lib_path1
=${lib_path1}:${lib} ;;
167 if test -n "${LIBPATH_SUFFIX_SKIP}"; then
169 *${LIBPATH_SUFFIX_SKIP}) skip_lib
=yes ;;
172 if test "${skip_lib}" = "no"; then
173 case :${lib_path1}: in
174 *:${lib}${libpath_suffix}:*) ;;
175 ::) lib_path1
=${lib}${libpath_suffix} ;;
176 *) lib_path1
=${lib_path1}:${lib}${libpath_suffix} ;;
181 if test "${skip_lib}" = "no"; then
182 case :${lib_path1}:${lib_path2}: in
184 *::) lib_path2
=${lib} ;;
185 *) lib_path2
=${lib_path2}:${lib} ;;
192 # Always search $(tooldir)/lib, aka /usr/local/TARGET/lib when native
193 # except when LIBPATH=":".
194 if [ "${LIB_PATH}" != ":" ] ; then
196 if [ "x${TOOL_LIB}" = "x" ] ; then
197 if [ "x${NATIVE}" = "xyes" ] ; then
198 libs
="${exec_prefix}/${target_alias}/lib"
201 # For multilib'ed targets, ensure both ${target_alias}/lib${LIBPATH_SUFFIX}
202 # and ${TOOL_LIB}/lib${LIBPATH_SUFFIX} are in the default search path,
203 # because 64bit libraries may be in both places, depending on
204 # cross-development setup method (e.g.: /usr/s390x-linux/lib64
205 # vs. /usr/s390-linux/lib64)
206 for libpath_suffix
in ${LIBPATH_SUFFIX}; do
207 case "${NATIVE}:${libpath_suffix}:${TOOL_LIB}" in
208 :* |
*::* |
*:*:*${libpath_suffix}) ;;
209 *) libs
="${exec_prefix}/${target_alias}/lib${libpath_suffix}" ;;
212 libs
="${exec_prefix}/${TOOL_LIB}/lib ${libs}"
214 append_to_lib_path
${libs}
217 if [ "x${LIB_PATH}" = "x" ] && [ "x${USE_LIBPATH}" = xyes
] ; then
218 libs
=${NATIVE_LIB_DIRS}
219 if [ "x${NATIVE}" = "xyes" ] ; then
222 *) libs
="${libdir} ${libs}" ;;
225 append_to_lib_path
${libs}
228 case :${lib_path1}:${lib_path2}: in
229 *:: |
::*) LIB_PATH
=${lib_path1}${lib_path2} ;;
230 *) LIB_PATH
=${lib_path1}:${lib_path2} ;;
233 LIB_SEARCH_DIRS
=`echo ${LIB_PATH} | sed -e 's/:/ /g' -e 's/\([^ ][^ ]*\)/SEARCH_DIR(\\"\1\\");/g'`
235 # We need it for testsuite.
236 set $EMULATION_LIBPATH
237 if [ "x$1" = "x$EMULATION_NAME" ]; then
238 test -d tmpdir || mkdir tmpdir
239 rm -f tmpdir
/libpath.exp
240 echo "set libpath \"${LIB_PATH}\"" |
sed -e 's/:/ /g' > tmpdir
/libpath.exp
243 # Generate 5 or 6 script files from a master script template in
244 # ${srcdir}/scripttempl/${SCRIPT_NAME}.sh. Which one of the 5 or 6
245 # script files is actually used depends on command line options given
246 # to ld. (SCRIPT_NAME was set in the emulparams_file.)
248 # A .x script file is the default script.
249 # A .xr script is for linking without relocation (-r flag).
250 # A .xu script is like .xr, but *do* create constructors (-Ur flag).
251 # A .xn script is for linking with -n flag (mix text and data on same page).
252 # A .xbn script is for linking with -N flag (mix text and data on same page).
253 # A .xs script is for generating a shared library with the --shared
254 # flag; it is only generated if $GENERATE_SHLIB_SCRIPT is set by the
255 # emulation parameters.
256 # A .xc script is for linking with -z combreloc; it is only generated if
257 # $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
258 # $SCRIPT_NAME is "elf".
259 # A .xsc script is for linking with --shared -z combreloc; it is generated
260 # if $GENERATE_COMBRELOC_SCRIPT is set by the emulation parameters or
261 # $SCRIPT_NAME is "elf" and $GENERATE_SHLIB_SCRIPT is set by the emulation
264 if [ "x$SCRIPT_NAME" = "xelf" ]; then
265 GENERATE_COMBRELOC_SCRIPT
=yes
268 SEGMENT_SIZE
=${SEGMENT_SIZE-${MAXPAGESIZE-${TARGET_PAGE_SIZE}}}
270 # Determine DATA_ALIGNMENT for the 5 variants, using
271 # values specified in the emulparams/<script_to_run>.sh file or default.
273 DATA_ALIGNMENT_
="${DATA_ALIGNMENT_-${DATA_ALIGNMENT-ALIGN(${SEGMENT_SIZE})}}"
274 DATA_ALIGNMENT_n
="${DATA_ALIGNMENT_n-${DATA_ALIGNMENT_}}"
275 DATA_ALIGNMENT_N
="${DATA_ALIGNMENT_N-${DATA_ALIGNMENT-.}}"
276 DATA_ALIGNMENT_r
="${DATA_ALIGNMENT_r-${DATA_ALIGNMENT-}}"
277 DATA_ALIGNMENT_u
="${DATA_ALIGNMENT_u-${DATA_ALIGNMENT_r}}"
280 DATA_ALIGNMENT
=${DATA_ALIGNMENT_r}
281 DEFAULT_DATA_ALIGNMENT
="ALIGN(${SEGMENT_SIZE})"
282 ( echo "/* Script for ld -r: link without relocation */"
283 .
${CUSTOMIZER_SCRIPT}
284 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
285 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xr
288 DATA_ALIGNMENT
=${DATA_ALIGNMENT_u}
290 ( echo "/* Script for ld -Ur: link w/out relocation, do create constructors */"
291 .
${CUSTOMIZER_SCRIPT}
292 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
293 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xu
295 DATA_ALIGNMENT
=${DATA_ALIGNMENT_}
298 ( echo "/* Default linker script, for normal executables */"
299 .
${CUSTOMIZER_SCRIPT}
300 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
301 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.x
304 ( echo "/* Script for -z separate-code: generate normal executables with separate code segment */"
305 .
${CUSTOMIZER_SCRIPT}
306 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
307 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xe
310 DATA_ALIGNMENT
=${DATA_ALIGNMENT_n}
311 ( echo "/* Script for -n: mix text and data on same page */"
312 .
${CUSTOMIZER_SCRIPT}
313 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
314 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xn
317 DATA_ALIGNMENT
=${DATA_ALIGNMENT_N}
318 ( echo "/* Script for -N: mix text and data on same page; don't align data */"
319 .
${CUSTOMIZER_SCRIPT}
320 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
321 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xbn
323 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
324 DATA_ALIGNMENT
=${DATA_ALIGNMENT_c-${DATA_ALIGNMENT_}}
326 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xc.tmp
327 ( echo "/* Script for -z combreloc: combine and sort reloc sections */"
328 .
${CUSTOMIZER_SCRIPT}
329 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
330 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xc
333 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xce.tmp
334 ( echo "/* Script for -z combreloc -z separate-code: combine and sort reloc sections with separate code segment */"
335 .
${CUSTOMIZER_SCRIPT}
336 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
337 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xce
341 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xw.tmp
342 ( echo "/* Script for -z combreloc -z now -z relro: combine and sort reloc sections */"
343 .
${CUSTOMIZER_SCRIPT}
344 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
345 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xw
348 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xwe.tmp
349 ( echo "/* Script for -z combreloc -z now -z relro -z separate-code: combine and sort reloc sections with separate code segment */"
350 .
${CUSTOMIZER_SCRIPT}
351 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
352 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xwe
358 if test -n "$GENERATE_SHLIB_SCRIPT"; then
359 DATA_ALIGNMENT
=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
363 echo "/* Script for ld --shared: link shared library */"
364 .
${CUSTOMIZER_SCRIPT}
365 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
366 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xs
367 LD_FLAG
=sharedtextonly
369 echo "/* Script for ld --shared -z separate-code: link shared library with separate code segment */"
370 .
${CUSTOMIZER_SCRIPT}
371 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
372 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xse
373 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
374 DATA_ALIGNMENT
=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
376 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xsc.tmp
377 ( echo "/* Script for --shared -z combreloc: shared library, combine & sort relocs */"
378 .
${CUSTOMIZER_SCRIPT}
379 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
380 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xsc
382 LD_FLAG
=csharedtextonly
383 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xsce.tmp
384 ( echo "/* Script for --shared -z combreloc -z separate-code: shared library, combine & sort relocs with separate code segment */"
385 .
${CUSTOMIZER_SCRIPT}
386 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
387 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xsce
391 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xsw.tmp
392 ( echo "/* Script for --shared -z combreloc -z now -z relro: shared library, combine & sort relocs */"
393 .
${CUSTOMIZER_SCRIPT}
394 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
395 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xsw
397 LD_FLAG
=wsharedtextonly
398 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xswe.tmp
399 ( echo "/* Script for --shared -z combreloc -z now -z relro -z separate-code: shared library, combine & sort relocs with separate code segment */"
400 .
${CUSTOMIZER_SCRIPT}
401 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
402 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xswe
410 if test -n "$GENERATE_PIE_SCRIPT"; then
411 DATA_ALIGNMENT
=${DATA_ALIGNMENT_s-${DATA_ALIGNMENT_}}
415 echo "/* Script for ld -pie: link position independent executable */"
416 .
${CUSTOMIZER_SCRIPT}
417 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
418 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xd
421 echo "/* Script for ld -pie -z separate-code: link position independent executable with separate code segment */"
422 .
${CUSTOMIZER_SCRIPT}
423 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
424 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xde
425 if test -n "$GENERATE_COMBRELOC_SCRIPT"; then
426 DATA_ALIGNMENT
=${DATA_ALIGNMENT_sc-${DATA_ALIGNMENT}}
427 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xdc.tmp
429 ( echo "/* Script for -pie -z combreloc: position independent executable, combine & sort relocs */"
430 .
${CUSTOMIZER_SCRIPT}
431 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
432 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xdc
435 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xdce.tmp
436 ( echo "/* Script for -pie -z combreloc -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
437 .
${CUSTOMIZER_SCRIPT}
438 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
439 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xdce
443 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xdw.tmp
444 ( echo "/* Script for -pie -z combreloc -z now -z relro: position independent executable, combine & sort relocs */"
445 .
${CUSTOMIZER_SCRIPT}
446 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
447 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xdw
450 COMBRELOC
=ldscripts
/${EMULATION_NAME}.xdwe.tmp
451 ( echo "/* Script for -pie -z combreloc -z now -z relro -z separate-code: position independent executable, combine & sort relocs with separate code segment */"
452 .
${CUSTOMIZER_SCRIPT}
453 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
454 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xdwe
462 if test -n "$GENERATE_AUTO_IMPORT_SCRIPT"; then
464 DATA_ALIGNMENT
=${DATA_ALIGNMENT_}
466 echo "/* Script for ld --enable-auto-import: Like the default script except read only data is placed into .data */"
467 .
${CUSTOMIZER_SCRIPT}
468 .
${srcdir}/scripttempl
/${SCRIPT_NAME}.sc
469 ) |
sed -e '/^ *$/d;s/[ ]*$//' > ldscripts
/${EMULATION_NAME}.xa
472 case "$COMPILE_IN: $EMULATION_LIBPATH " in
473 :*" ${EMULATION_NAME} "*) COMPILE_IN
=yes;;
477 # Determine if the shell has support for the variable BASH_LINENO.
478 # When it is the case, it is only available inside functions.
481 test "x$BASH_LINENO" != "x"
484 # Enable accruate error source in the compiler error messages, if possible.
486 .
${srcdir}/genscrba.sh
494 cat >> e
${EMULATION_NAME}.c
498 # Generate e${EMULATION_NAME}.c.
499 # Start with an empty file, then the sourced .em script
500 # can use the "fragment" function to append.
501 > e
${EMULATION_NAME}.c
502 source_em
${srcdir}/emultempl
/${TEMPLATE_NAME-generic}.em