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Revision 1.86 - (show annotations) (download)
Fri Mar 18 19:12:08 2011 UTC (3 years, 4 months ago) by vapier
Branch: MAIN
Changes since 1.85: +6 -2 lines
use "lib" for x86 ABI when SYMLINK_LIBDIR=no

1 # Copyright 1999-2011 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/multilib.eclass,v 1.85 2011/03/16 20:09:10 vapier Exp $
4
5 # @ECLASS: multilib.eclass
6 # @MAINTAINER:
7 # amd64@gentoo.org
8 # toolchain@gentoo.org
9 # @BLURB: This eclass is for all functions pertaining to handling multilib configurations.
10 # @DESCRIPTION:
11 # This eclass is for all functions pertaining to handling multilib configurations.
12
13 ___ECLASS_RECUR_MULTILIB="yes"
14 [[ -z ${___ECLASS_RECUR_TOOLCHAIN_FUNCS} ]] && inherit toolchain-funcs
15
16 # Defaults:
17 export MULTILIB_ABIS=${MULTILIB_ABIS:-"default"}
18 export DEFAULT_ABI=${DEFAULT_ABI:-"default"}
19 export CFLAGS_default
20 export LDFLAGS_default
21 export CHOST_default=${CHOST_default:-${CHOST}}
22 export CTARGET_default=${CTARGET_default:-${CTARGET:-${CHOST_default}}}
23 export LIBDIR_default=${CONF_LIBDIR:-"lib"}
24 export CDEFINE_default="__unix__"
25 export KERNEL_ABI=${KERNEL_ABI:-${DEFAULT_ABI}}
26
27 # @FUNCTION: has_multilib_profile
28 # @DESCRIPTION:
29 # Return true if the current profile is a multilib profile and lists more than
30 # one abi in ${MULTILIB_ABIS}. When has_multilib_profile returns true, that
31 # profile should enable the 'multilib' use flag. This is so you can DEPEND on
32 # a package only for multilib or not multilib.
33 has_multilib_profile() {
34 [ -n "${MULTILIB_ABIS}" -a "${MULTILIB_ABIS}" != "${MULTILIB_ABIS/ /}" ]
35 }
36
37 # @FUNCTION: get_libdir
38 # @RETURN: the libdir for the selected ABI
39 # @DESCRIPTION:
40 # This function simply returns the desired lib directory. With portage
41 # 2.0.51, we now have support for installing libraries to lib32/lib64
42 # to accomidate the needs of multilib systems. It's no longer a good idea
43 # to assume all libraries will end up in lib. Replace any (sane) instances
44 # where lib is named directly with $(get_libdir) if possible.
45 #
46 # Jeremy Huddleston <eradicator@gentoo.org> (23 Dec 2004):
47 # Added support for ${ABI} and ${DEFAULT_ABI}. If they're both not set,
48 # fall back on old behavior. Any profile that has these set should also
49 # depend on a newer version of portage (not yet released) which uses these
50 # over CONF_LIBDIR in econf, dolib, etc...
51 get_libdir() {
52 local CONF_LIBDIR
53 if [ -n "${CONF_LIBDIR_OVERRIDE}" ] ; then
54 # if there is an override, we want to use that... always.
55 echo ${CONF_LIBDIR_OVERRIDE}
56 else
57 get_abi_LIBDIR
58 fi
59 }
60
61 # @FUNCTION: get_multilibdir
62 # @RETURN: Returns the multilibdir
63 get_multilibdir() {
64 if has_multilib_profile; then
65 eerror "get_multilibdir called, but it shouldn't be needed with the new multilib approach. Please file a bug at http://bugs.gentoo.org and assign it to eradicator@gentoo.org"
66 exit 1
67 fi
68 echo ${CONF_MULTILIBDIR:=lib32}
69 }
70
71 # @FUNCTION: get_libdir_override
72 # @DESCRIPTION:
73 # Sometimes you need to override the value returned by get_libdir. A good
74 # example of this is xorg-x11, where lib32 isnt a supported configuration,
75 # and where lib64 -must- be used on amd64 (for applications that need lib
76 # to be 32bit, such as adobe acrobat). Note that this override also bypasses
77 # portage version sanity checking.
78 # get_libdir_override expects one argument, the result get_libdir should
79 # return:
80 #
81 # get_libdir_override lib64
82 get_libdir_override() {
83 if has_multilib_profile; then
84 eerror "get_libdir_override called, but it shouldn't be needed with the new multilib approach. Please file a bug at http://bugs.gentoo.org and assign it to eradicator@gentoo.org"
85 exit 1
86 fi
87 CONF_LIBDIR="$1"
88 CONF_LIBDIR_OVERRIDE="$1"
89 LIBDIR_default="$1"
90 }
91
92 # @FUNCTION: get_abi_var
93 # @USAGE: <VAR> [ABI]
94 # @RETURN: returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
95 # @DESCRIPTION:
96 # ex:
97 # CFLAGS=$(get_abi_var CFLAGS sparc32) # CFLAGS=-m32
98 #
99 # Note that the prefered method is to set CC="$(tc-getCC) $(get_abi_CFLAGS)"
100 # This will hopefully be added to portage soon...
101 #
102 # If <ABI> is not specified, ${ABI} is used.
103 # If <ABI> is not specified and ${ABI} is not defined, ${DEFAULT_ABI} is used.
104 # If <ABI> is not specified and ${ABI} and ${DEFAULT_ABI} are not defined, we return an empty string.
105 get_abi_var() {
106 local flag=$1
107 local abi
108 if [ $# -gt 1 ]; then
109 abi=${2}
110 elif [ -n "${ABI}" ]; then
111 abi=${ABI}
112 elif [ -n "${DEFAULT_ABI}" ]; then
113 abi=${DEFAULT_ABI}
114 else
115 abi="default"
116 fi
117
118 local var="${flag}_${abi}"
119 echo ${!var}
120 }
121
122 # @FUNCTION: get_abi_CFLAGS
123 # @USAGE: [ABI]
124 # @DESCRIPTION:
125 # Alias for 'get_abi_var CFLAGS'
126 get_abi_CFLAGS() { get_abi_var CFLAGS "$@"; }
127
128 # @FUNCTION: get_abi_ASFLAGS
129 # @USAGE: [ABI]
130 # @DESCRIPTION:
131 # Alias for 'get_abi_var ASFLAGS'
132 get_abi_ASFLAGS() { get_abi_var ASFLAGS "$@"; }
133
134 # @FUNCTION: get_abi_LDFLAGS
135 # @USAGE: [ABI]
136 # @DESCRIPTION:
137 # Alias for 'get_abi_var LDFLAGS'
138 get_abi_LDFLAGS() { get_abi_var LDFLAGS "$@"; }
139
140 # @FUNCTION: get_abi_CHOST
141 # @USAGE: [ABI]
142 # @DESCRIPTION:
143 # Alias for 'get_abi_var CHOST'
144 get_abi_CHOST() { get_abi_var CHOST "$@"; }
145
146 # @FUNCTION: get_abi_CTARGET
147 # @USAGE: [ABI]
148 # @DESCRIPTION:
149 # Alias for 'get_abi_var CTARGET'
150 get_abi_CTARGET() { get_abi_var CTARGET "$@"; }
151
152 # @FUNCTION: get_abi_FAKE_TARGETS
153 # @USAGE: [ABI]
154 # @DESCRIPTION:
155 # Alias for 'get_abi_var FAKE_TARGETS'
156 get_abi_FAKE_TARGETS() { get_abi_var FAKE_TARGETS "$@"; }
157
158 # @FUNCTION: get_abi_CDEFINE
159 # @USAGE: [ABI]
160 # @DESCRIPTION:
161 # Alias for 'get_abi_var CDEFINE'
162 get_abi_CDEFINE() { get_abi_var CDEFINE "$@"; }
163
164 # @FUNCTION: get_abi_LIBDIR
165 # @USAGE: [ABI]
166 # @DESCRIPTION:
167 # Alias for 'get_abi_var LIBDIR'
168 get_abi_LIBDIR() { get_abi_var LIBDIR "$@"; }
169
170 # @FUNCTION: get_install_abis
171 # @DESCRIPTION:
172 # Return a list of the ABIs we want to install for with
173 # the last one in the list being the default.
174 get_install_abis() {
175 local order=""
176
177 if [[ -z ${MULTILIB_ABIS} ]] ; then
178 echo "default"
179 return 0
180 fi
181
182 if [[ ${EMULTILIB_PKG} == "true" ]] ; then
183 for x in ${MULTILIB_ABIS} ; do
184 if [[ ${x} != "${DEFAULT_ABI}" ]] ; then
185 hasq ${x} ${ABI_DENY} || ordera="${ordera} ${x}"
186 fi
187 done
188 hasq ${DEFAULT_ABI} ${ABI_DENY} || order="${ordera} ${DEFAULT_ABI}"
189
190 if [[ -n ${ABI_ALLOW} ]] ; then
191 local ordera=""
192 for x in ${order} ; do
193 if hasq ${x} ${ABI_ALLOW} ; then
194 ordera="${ordera} ${x}"
195 fi
196 done
197 order=${ordera}
198 fi
199 else
200 order=${DEFAULT_ABI}
201 fi
202
203 if [[ -z ${order} ]] ; then
204 die "The ABI list is empty. Are you using a proper multilib profile? Perhaps your USE flags or MULTILIB_ABIS are too restrictive for this package."
205 fi
206
207 echo ${order}
208 return 0
209 }
210
211 # @FUNCTION: get_all_abis
212 # @DESCRIPTION:
213 # Return a list of the ABIs supported by this profile.
214 # the last one in the list being the default.
215 get_all_abis() {
216 local order=""
217
218 if [[ -z ${MULTILIB_ABIS} ]] ; then
219 echo "default"
220 return 0
221 fi
222
223 for x in ${MULTILIB_ABIS}; do
224 if [[ ${x} != ${DEFAULT_ABI} ]] ; then
225 order="${order:+${order} }${x}"
226 fi
227 done
228 order="${order:+${order} }${DEFAULT_ABI}"
229
230 echo ${order}
231 return 0
232 }
233
234 # @FUNCTION: get_all_libdirs
235 # @DESCRIPTION:
236 # Returns a list of all the libdirs used by this profile. This includes
237 # those that might not be touched by the current ebuild and always includes
238 # "lib".
239 get_all_libdirs() {
240 local libdirs
241 local abi
242 local dir
243
244 for abi in ${MULTILIB_ABIS}; do
245 libdirs+=" $(get_abi_LIBDIR ${abi})"
246 done
247 [[ " ${libdirs} " != *" lib "* ]] && libdirs+=" lib"
248
249 echo "${libdirs}"
250 }
251
252 # @FUNCTION: is_final_abi
253 # @DESCRIPTION:
254 # Return true if ${ABI} is the last ABI on our list (or if we're not
255 # using the new multilib configuration. This can be used to determine
256 # if we're in the last (or only) run through src_{unpack,compile,install}
257 is_final_abi() {
258 has_multilib_profile || return 0
259 set -- $(get_install_abis)
260 local LAST_ABI=$#
261 [[ ${!LAST_ABI} == ${ABI} ]]
262 }
263
264 # @FUNCTION: number_abis
265 # @DESCRIPTION:
266 # echo the number of ABIs we will be installing for
267 number_abis() {
268 get_install_abis | wc -w
269 }
270
271 # @FUNCTION: get_ml_incdir
272 # @USAGE: [include_dir] [ABI]
273 # @DESCRIPTION:
274 # include dir defaults to /usr/include
275 # ABI defaults to ${ABI} or ${DEFAULT_ABI}
276 #
277 # If a multilib include dir is associated with the passed include dir, then
278 # we return it, otherwise, we just echo back the include dir. This is
279 # neccessary when a built script greps header files rather than testing them
280 # via #include (like perl) to figure out features.
281 get_ml_incdir() {
282 local dir=/usr/include
283
284 if [[ $# -gt 0 ]]; then
285 incdir=$1
286 shift
287 fi
288
289 if [[ -z "${MULTILIB_ABIS}" ]]; then
290 echo ${incdir}
291 return 0
292 fi
293
294 local abi=${ABI-${DEFAULT_ABI}}
295 if [[ $# -gt 0 ]]; then
296 abi=$1
297 shift
298 fi
299
300 if [[ -d "${dir}/gentoo-multilib/${abi}" ]]; then
301 echo ${dir}/gentoo-multilib/${abi}
302 else
303 echo ${dir}
304 fi
305 }
306
307 # @FUNCTION: prep_ml_includes
308 # @DESCRIPTION:
309 # Some includes (include/asm, glibc, etc) are ABI dependent. In this case,
310 # We can install them in different locations for each ABI and create a common
311 # header which includes the right one based on CDEFINE_${ABI}. If your
312 # package installs ABI-specific headers, just add 'prep_ml_includes' to the
313 # end of your src_install(). It takes a list of directories that include
314 # files are installed in (default is /usr/include if none are passed).
315 #
316 # Example:
317 # src_install() {
318 # ...
319 # prep_ml_includes /usr/qt/3/include
320 # }
321 prep_ml_includes() {
322 if [[ $(number_abis) -gt 1 ]] ; then
323 local dir
324 local dirs
325 local base
326
327 if [[ $# -eq 0 ]] ; then
328 dirs=/usr/include
329 else
330 dirs="$@"
331 fi
332
333 for dir in ${dirs} ; do
334 base=${T}/gentoo-multilib/${dir}/gentoo-multilib
335 mkdir -p "${base}"
336 [[ -d ${base}/${ABI} ]] && rm -rf "${base}/${ABI}"
337 mv "${D}/${dir}" "${base}/${ABI}"
338 done
339
340 if is_final_abi; then
341 base=${T}/gentoo-multilib
342 pushd "${base}"
343 find . | tar -c -T - -f - | tar -x --no-same-owner -f - -C "${D}"
344 popd
345
346 # This 'set' stuff is required by mips profiles to properly pass
347 # CDEFINE's (which have spaces) to sub-functions
348 set --
349 for dir in ${dirs} ; do
350 set -- "$@" "${dir}"
351 local abi
352 for abi in $(get_install_abis); do
353 set -- "$@" "$(get_abi_CDEFINE ${abi}):${dir}/gentoo-multilib/${abi}"
354 done
355 create_ml_includes "$@"
356 done
357 fi
358 fi
359 }
360
361 # @FUNCTION: create_ml_includes
362 # @USAGE: <include_dir> <symbol_1>:<dir_1> [<symbol_2>:<dir_2>...]
363 # @DESCRIPTION:
364 # If you need more control than prep_ml_includes can offer (like linux-headers
365 # for the asm-* dirs, then use create_ml_includes. The firs argument is the
366 # common dir. The remaining args are of the form <symbol>:<dir> where
367 # <symbol> is what is put in the #ifdef for choosing that dir.
368 #
369 # Ideas for this code came from debian's sparc-linux headers package.
370 #
371 # Example:
372 # create_ml_includes /usr/include/asm __sparc__:/usr/include/asm-sparc __sparc64__:/usr/include/asm-sparc64
373 # create_ml_includes /usr/include/asm __i386__:/usr/include/asm-i386 __x86_64__:/usr/include/asm-x86_64
374 #
375 # Warning: Be careful with the ordering here. The default ABI has to be the
376 # last, because it is always defined (by GCC)
377 create_ml_includes() {
378 local dest=$1
379 shift
380 local basedirs=$(create_ml_includes-listdirs "$@")
381
382 create_ml_includes-makedestdirs ${dest} ${basedirs}
383
384 local file
385 for file in $(create_ml_includes-allfiles ${basedirs}) ; do
386 #local name=$(echo ${file} | tr '[:lower:]' '[:upper:]' | sed 's:[^[:upper:]]:_:g')
387 (
388 echo "/* Autogenerated by create_ml_includes() in multilib.eclass */"
389
390 local dir
391 for dir in ${basedirs}; do
392 if [[ -f ${D}/${dir}/${file} ]] ; then
393 echo ""
394 local sym=$(create_ml_includes-sym_for_dir ${dir} "$@")
395 if [[ ${sym/=} != "${sym}" ]] ; then
396 echo "#if ${sym}"
397 elif [[ ${sym::1} == "!" ]] ; then
398 echo "#ifndef ${sym:1}"
399 else
400 echo "#ifdef ${sym}"
401 fi
402 echo "# include <$(create_ml_includes-absolute ${dir}/${file})>"
403 echo "#endif /* ${sym} */"
404 fi
405 done
406
407 #echo "#endif /* __CREATE_ML_INCLUDES_STUB_${name}__ */"
408 ) > "${D}/${dest}/${file}"
409 done
410 }
411
412 # Helper function for create_ml_includes
413 create_ml_includes-absolute() {
414 local dst="$(create_ml_includes-tidy_path $1)"
415
416 dst=(${dst//\// })
417
418 local i
419 for ((i=0; i<${#dst[*]}; i++)); do
420 [ "${dst[i]}" == "include" ] && break
421 done
422
423 local strip_upto=$i
424
425 for ((i=strip_upto+1; i<${#dst[*]}-1; i++)); do
426 echo -n ${dst[i]}/
427 done
428
429 echo -n ${dst[i]}
430 }
431
432 # Helper function for create_ml_includes
433 create_ml_includes-tidy_path() {
434 local removed=$1
435
436 if [ -n "${removed}" ]; then
437 # Remove multiple slashes
438 while [ "${removed}" != "${removed/\/\//\/}" ]; do
439 removed=${removed/\/\//\/}
440 done
441
442 # Remove . directories
443 while [ "${removed}" != "${removed//\/.\//\/}" ]; do
444 removed=${removed//\/.\//\/}
445 done
446 [ "${removed##*/}" = "." ] && removed=${removed%/*}
447
448 # Removed .. directories
449 while [ "${removed}" != "${removed//\/..\/}" ]; do
450 local p1="${removed%%\/..\/*}"
451 local p2="${removed#*\/..\/}"
452
453 removed="${p1%\/*}/${p2}"
454 done
455
456 # Remove trailing ..
457 [ "${removed##*/}" = ".." ] && removed=${removed%/*/*}
458
459 # Remove trailing /
460 [ "${removed##*/}" = "" ] && removed=${removed%/*}
461
462 echo ${removed}
463 fi
464 }
465
466 # Helper function for create_ml_includes
467 create_ml_includes-listdirs() {
468 local dirs
469 local data
470 for data in "$@"; do
471 dirs="${dirs} ${data/*:/}"
472 done
473 echo ${dirs:1}
474 }
475
476 # Helper function for create_ml_includes
477 create_ml_includes-makedestdirs() {
478 local dest=$1
479 shift
480 local basedirs=$@
481 [[ -z ${ED} ]] && local ED=${D}
482
483 dodir ${dest}
484
485 local basedir
486 for basedir in ${basedirs}; do
487 local dir
488 for dir in $(find "${ED}"/${basedir} -type d); do
489 dodir ${dest}/${dir/${ED}\/${basedir}/}
490 done
491 done
492 }
493
494 # Helper function for create_ml_includes
495 create_ml_includes-allfiles() {
496 [[ -z ${ED} ]] && local ED=${D}
497 local basedir file
498 for basedir in "$@" ; do
499 for file in $(find "${ED}"/${basedir} -type f); do
500 echo ${file/${ED}\/${basedir}\//}
501 done
502 done | sort | uniq
503 }
504
505 # Helper function for create_ml_includes
506 create_ml_includes-sym_for_dir() {
507 local dir=$1
508 shift
509 local data
510 for data in "$@"; do
511 if [[ ${data} == *:${dir} ]] ; then
512 echo ${data/:*/}
513 return 0
514 fi
515 done
516 echo "Shouldn't be here -- create_ml_includes-sym_for_dir $1 $@"
517 # exit because we'll likely be called from a subshell
518 exit 1
519 }
520
521 # @FUNCTION: get_libname
522 # @USAGE: [version]
523 # @DESCRIPTION:
524 # Returns libname with proper suffix {.so,.dylib,.dll,etc} and optionally
525 # supplied version for the current platform identified by CHOST.
526 #
527 # Example:
528 # get_libname ${PV}
529 # Returns: .so.${PV} (ELF) || .${PV}.dylib (MACH) || ...
530 get_libname() {
531 local libname
532 local ver=$1
533 case ${CHOST} in
534 *-cygwin|mingw*|*-mingw*) libname="dll";;
535 *-darwin*) libname="dylib";;
536 *-mint*) libname="irrelevant";;
537 hppa*-hpux*) libname="sl";;
538 *) libname="so";;
539 esac
540
541 if [[ -z $* ]] ; then
542 echo ".${libname}"
543 else
544 for ver in "$@" ; do
545 case ${CHOST} in
546 *-darwin*) echo ".${ver}.${libname}";;
547 *-mint*) echo ".${libname}";;
548 *) echo ".${libname}.${ver}";;
549 esac
550 done
551 fi
552 }
553
554 # @FUNCTION: get_modname
555 # @USAGE:
556 # @DESCRIPTION:
557 # Returns modulename with proper suffix {.so,.bundle,etc} for the current
558 # platform identified by CHOST.
559 #
560 # Example:
561 # libfoo$(get_modname)
562 # Returns: libfoo.so (ELF) || libfoo.bundle (MACH) || ...
563 get_modname() {
564 local modname
565 local ver=$1
566 case ${CHOST} in
567 *-darwin*) modname="bundle";;
568 *) modname="so";;
569 esac
570
571 echo ".${modname}"
572 }
573
574 # This is for the toolchain to setup profile variables when pulling in
575 # a crosscompiler (and thus they aren't set in the profile)
576 multilib_env() {
577 local CTARGET=${1:-${CTARGET}}
578
579 case ${CTARGET} in
580 x86_64*)
581 export CFLAGS_x86=${CFLAGS_x86--m32}
582 export CHOST_x86=${CTARGET/x86_64/i686}
583 export CTARGET_x86=${CHOST_x86}
584 export CDEFINE_x86="__i386__"
585 if [[ ${SYMLINK_LIBDIR} == "yes" ]] ; then
586 export LIBDIR_x86="lib32"
587 else
588 export LIBDIR_x86="lib"
589 fi
590
591 export CFLAGS_amd64=${CFLAGS_amd64--m64}
592 export CHOST_amd64=${CTARGET}
593 export CTARGET_amd64=${CHOST_amd64}
594 export CDEFINE_amd64="__x86_64__"
595 export LIBDIR_amd64="lib64"
596
597 export CFLAGS_x32=${CFLAGS_x32--mx32}
598 export CHOST_x32=${CTARGET}
599 export CTARGET_x32=${CHOST_x32}
600 export CDEFINE_x32="__i386__"
601 export LIBDIR_x32="libx32"
602
603 : ${MULTILIB_ABIS=amd64 x86}
604 : ${DEFAULT_ABI=amd64}
605 ;;
606 mips64*)
607 export CFLAGS_o32=${CFLAGS_o32--mabi=32}
608 export CHOST_o32=${CTARGET/mips64/mips}
609 export CTARGET_o32=${CHOST_o32}
610 export CDEFINE_o32="_MIPS_SIM == _ABIO32"
611 export LIBDIR_o32="lib"
612
613 export CFLAGS_n32=${CFLAGS_n32--mabi=n32}
614 export CHOST_n32=${CTARGET}
615 export CTARGET_n32=${CHOST_n32}
616 export CDEFINE_n32="_MIPS_SIM == _ABIN32"
617 export LIBDIR_n32="lib32"
618
619 export CFLAGS_n64=${CFLAGS_n64--mabi=64}
620 export CHOST_n64=${CTARGET}
621 export CTARGET_n64=${CHOST_n64}
622 export CDEFINE_n64="_MIPS_SIM == _ABI64"
623 export LIBDIR_n64="lib64"
624
625 : ${MULTILIB_ABIS=n64 n32 o32}
626 : ${DEFAULT_ABI=n32}
627 ;;
628 powerpc64*)
629 export CFLAGS_ppc=${CFLAGS_ppc--m32}
630 export CHOST_ppc=${CTARGET/powerpc64/powerpc}
631 export CTARGET_ppc=${CHOST_ppc}
632 export CDEFINE_ppc="!__powerpc64__"
633 export LIBDIR_ppc="lib"
634
635 export CFLAGS_ppc64=${CFLAGS_ppc64--m64}
636 export CHOST_ppc64=${CTARGET}
637 export CTARGET_ppc64=${CHOST_ppc64}
638 export CDEFINE_ppc64="__powerpc64__"
639 export LIBDIR_ppc64="lib64"
640
641 : ${MULTILIB_ABIS=ppc64 ppc}
642 : ${DEFAULT_ABI=ppc64}
643 ;;
644 s390x*)
645 export CFLAGS_s390=${CFLAGS_s390--m31} # the 31 is not a typo
646 export CHOST_s390=${CTARGET/s390x/s390}
647 export CTARGET_s390=${CHOST_s390}
648 export CDEFINE_s390="!__s390x__"
649 export LIBDIR_s390="lib"
650
651 export CFLAGS_s390x=${CFLAGS_s390x--m64}
652 export CHOST_s390x=${CTARGET}
653 export CTARGET_s390x=${CHOST_s390x}
654 export CDEFINE_s390x="__s390x__"
655 export LIBDIR_s390x="lib64"
656
657 : ${MULTILIB_ABIS=s390x s390}
658 : ${DEFAULT_ABI=s390x}
659 ;;
660 sparc*)
661 export CFLAGS_sparc32=${CFLAGS_sparc32}
662 export CHOST_sparc32=${CTARGET/sparc64/sparc}
663 export CTARGET_sparc32=${CHOST_sparc32}
664 export CDEFINE_sparc32="!__arch64__"
665 export LIBDIR_sparc32="lib"
666
667 export CFLAGS_sparc64=${CFLAGS_sparc64--m64}
668 export CHOST_sparc64=${CTARGET}
669 export CTARGET_sparc64=${CHOST_sparc64}
670 export CDEFINE_sparc64="__arch64__"
671 export LIBDIR_sparc64="lib64"
672
673 : ${MULTILIB_ABIS=sparc64 sparc32}
674 : ${DEFAULT_ABI=sparc64}
675 ;;
676 *)
677 : ${MULTILIB_ABIS=default}
678 : ${DEFAULT_ABI=default}
679 ;;
680 esac
681
682 export MULTILIB_ABIS DEFAULT_ABI
683 }
684
685 # @FUNCTION: multilib_toolchain_setup
686 # @DESCRIPTION:
687 # Hide multilib details here for packages which are forced to be compiled for a
688 # specific ABI when run on another ABI (like x86-specific packages on amd64)
689 multilib_toolchain_setup() {
690 local v vv
691
692 export ABI=$1
693
694 # First restore any saved state we have laying around.
695 if [[ ${__DEFAULT_ABI_SAVED} == "true" ]] ; then
696 for v in CHOST CBUILD AS CC CXX LD ; do
697 vv="__abi_saved_${v}"
698 export ${v}="${!vv}"
699 unset ${vv}
700 done
701 unset __DEFAULT_ABI_SAVED
702 fi
703
704 # We want to avoid the behind-the-back magic of gcc-config as it
705 # screws up ccache and distcc. See #196243 for more info.
706 if [[ ${ABI} != ${DEFAULT_ABI} ]] ; then
707 # Back that multilib-ass up so we can restore it later
708 for v in CHOST CBUILD AS CC CXX LD ; do
709 export __abi_saved_${v}="${!v}"
710 done
711 export __DEFAULT_ABI_SAVED="true"
712
713 # Set the CHOST native first so that we pick up the native
714 # toolchain and not a cross-compiler by accident #202811.
715 export CHOST=$(get_abi_CHOST ${DEFAULT_ABI})
716 export AS="$(tc-getAS) $(get_abi_ASFLAGS)"
717 export CC="$(tc-getCC) $(get_abi_CFLAGS)"
718 export CXX="$(tc-getCXX) $(get_abi_CFLAGS)"
719 export LD="$(tc-getLD) $(get_abi_LDFLAGS)"
720 export CHOST=$(get_abi_CHOST $1)
721 export CBUILD=$(get_abi_CHOST $1)
722 fi
723 }

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