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Revision 1.76 - (show annotations) (download)
Thu Oct 8 19:56:14 2009 UTC (4 years, 11 months ago) by grobian
Branch: MAIN
Changes since 1.75: +21 -1 lines
add get_modname function that retrieves the shared module extension, like get_libname does for shared libraries

1 # Copyright 1999-2008 Gentoo Foundation
2 # Distributed under the terms of the GNU General Public License v2
3 # $Header: /var/cvsroot/gentoo-x86/eclass/multilib.eclass,v 1.75 2009/10/08 19:54:40 grobian 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="lib"
241 local abi
242 local dir
243
244 for abi in ${MULTILIB_ABIS}; do
245 [ "$(get_abi_LIBDIR ${abi})" != "lib" ] && libdirs="${libdirs} $(get_abi_LIBDIR ${abi})"
246 done
247
248 echo "${libdirs}"
249 }
250
251 # @FUNCTION: is_final_abi
252 # @DESCRIPTION:
253 # Return true if ${ABI} is the last ABI on our list (or if we're not
254 # using the new multilib configuration. This can be used to determine
255 # if we're in the last (or only) run through src_{unpack,compile,install}
256 is_final_abi() {
257 has_multilib_profile || return 0
258 local ALL_ABIS=$(get_install_abis)
259 local LAST_ABI=${ALL_ABIS/* /}
260 [[ ${LAST_ABI} == ${ABI} ]]
261 }
262
263 # @FUNCTION: number_abis
264 # @DESCRIPTION:
265 # echo the number of ABIs we will be installing for
266 number_abis() {
267 get_install_abis | wc -w
268 }
269
270 # @FUNCTION: get_ml_incdir
271 # @USAGE: [include_dir] [ABI]
272 # @DESCRIPTION:
273 # include dir defaults to /usr/include
274 # ABI defaults to ${ABI} or ${DEFAULT_ABI}
275 #
276 # If a multilib include dir is associated with the passed include dir, then
277 # we return it, otherwise, we just echo back the include dir. This is
278 # neccessary when a built script greps header files rather than testing them
279 # via #include (like perl) to figure out features.
280 get_ml_incdir() {
281 local dir=/usr/include
282
283 if [[ $# -gt 0 ]]; then
284 incdir=$1
285 shift
286 fi
287
288 if [[ -z "${MULTILIB_ABIS}" ]]; then
289 echo ${incdir}
290 return 0
291 fi
292
293 local abi=${ABI-${DEFAULT_ABI}}
294 if [[ $# -gt 0 ]]; then
295 abi=$1
296 shift
297 fi
298
299 if [[ -d "${dir}/gentoo-multilib/${abi}" ]]; then
300 echo ${dir}/gentoo-multilib/${abi}
301 else
302 echo ${dir}
303 fi
304 }
305
306 # @FUNCTION: prep_ml_includes
307 # @DESCRIPTION:
308 # Some includes (include/asm, glibc, etc) are ABI dependent. In this case,
309 # We can install them in different locations for each ABI and create a common
310 # header which includes the right one based on CDEFINE_${ABI}. If your
311 # package installs ABI-specific headers, just add 'prep_ml_includes' to the
312 # end of your src_install(). It takes a list of directories that include
313 # files are installed in (default is /usr/include if none are passed).
314 #
315 # Example:
316 # src_install() {
317 # ...
318 # prep_ml_includes /usr/qt/3/include
319 # }
320 prep_ml_includes() {
321 if [[ $(number_abis) -gt 1 ]] ; then
322 local dir
323 local dirs
324 local base
325
326 if [[ $# -eq 0 ]] ; then
327 dirs=/usr/include
328 else
329 dirs="$@"
330 fi
331
332 for dir in ${dirs} ; do
333 base=${T}/gentoo-multilib/${dir}/gentoo-multilib
334 mkdir -p "${base}"
335 [[ -d ${base}/${ABI} ]] && rm -rf "${base}/${ABI}"
336 mv "${D}/${dir}" "${base}/${ABI}"
337 done
338
339 if is_final_abi; then
340 base=${T}/gentoo-multilib
341 pushd "${base}"
342 find . | tar -c -T - -f - | tar -x --no-same-owner -f - -C "${D}"
343 popd
344
345 # This 'set' stuff is required by mips profiles to properly pass
346 # CDEFINE's (which have spaces) to sub-functions
347 set --
348 for dir in ${dirs} ; do
349 set -- "$@" "${dir}"
350 local abi
351 for abi in $(get_install_abis); do
352 set -- "$@" "$(get_abi_CDEFINE ${abi}):${dir}/gentoo-multilib/${abi}"
353 done
354 create_ml_includes "$@"
355 done
356 fi
357 fi
358 }
359
360 # @FUNCTION: create_ml_includes
361 # @USAGE: <include_dir> <symbol_1>:<dir_1> [<symbol_2>:<dir_2>...]
362 # @DESCRIPTION:
363 # If you need more control than prep_ml_includes can offer (like linux-headers
364 # for the asm-* dirs, then use create_ml_includes. The firs argument is the
365 # common dir. The remaining args are of the form <symbol>:<dir> where
366 # <symbol> is what is put in the #ifdef for choosing that dir.
367 #
368 # Ideas for this code came from debian's sparc-linux headers package.
369 #
370 # Example:
371 # create_ml_includes /usr/include/asm __sparc__:/usr/include/asm-sparc __sparc64__:/usr/include/asm-sparc64
372 # create_ml_includes /usr/include/asm __i386__:/usr/include/asm-i386 __x86_64__:/usr/include/asm-x86_64
373 #
374 # Warning: Be careful with the ordering here. The default ABI has to be the
375 # last, because it is always defined (by GCC)
376 create_ml_includes() {
377 local dest=$1
378 shift
379 local basedirs=$(create_ml_includes-listdirs "$@")
380
381 create_ml_includes-makedestdirs ${dest} ${basedirs}
382
383 local file
384 for file in $(create_ml_includes-allfiles ${basedirs}) ; do
385 #local name=$(echo ${file} | tr '[:lower:]' '[:upper:]' | sed 's:[^[:upper:]]:_:g')
386 (
387 echo "/* Autogenerated by create_ml_includes() in multilib.eclass */"
388
389 local dir
390 for dir in ${basedirs}; do
391 if [[ -f ${D}/${dir}/${file} ]] ; then
392 echo ""
393 local sym=$(create_ml_includes-sym_for_dir ${dir} "$@")
394 if [[ ${sym/=} != "${sym}" ]] ; then
395 echo "#if ${sym}"
396 elif [[ ${sym::1} == "!" ]] ; then
397 echo "#ifndef ${sym:1}"
398 else
399 echo "#ifdef ${sym}"
400 fi
401 echo "# include <$(create_ml_includes-absolute ${dir}/${file})>"
402 echo "#endif /* ${sym} */"
403 fi
404 done
405
406 #echo "#endif /* __CREATE_ML_INCLUDES_STUB_${name}__ */"
407 ) > "${D}/${dest}/${file}"
408 done
409 }
410
411 # Helper function for create_ml_includes
412 create_ml_includes-absolute() {
413 local dst="$(create_ml_includes-tidy_path $1)"
414
415 dst=(${dst//\// })
416
417 local i
418 for ((i=0; i<${#dst[*]}; i++)); do
419 [ "${dst[i]}" == "include" ] && break
420 done
421
422 local strip_upto=$i
423
424 for ((i=strip_upto+1; i<${#dst[*]}-1; i++)); do
425 echo -n ${dst[i]}/
426 done
427
428 echo -n ${dst[i]}
429 }
430
431 # Helper function for create_ml_includes
432 create_ml_includes-tidy_path() {
433 local removed=$1
434
435 if [ -n "${removed}" ]; then
436 # Remove multiple slashes
437 while [ "${removed}" != "${removed/\/\//\/}" ]; do
438 removed=${removed/\/\//\/}
439 done
440
441 # Remove . directories
442 while [ "${removed}" != "${removed//\/.\//\/}" ]; do
443 removed=${removed//\/.\//\/}
444 done
445 [ "${removed##*/}" = "." ] && removed=${removed%/*}
446
447 # Removed .. directories
448 while [ "${removed}" != "${removed//\/..\/}" ]; do
449 local p1="${removed%%\/..\/*}"
450 local p2="${removed#*\/..\/}"
451
452 removed="${p1%\/*}/${p2}"
453 done
454
455 # Remove trailing ..
456 [ "${removed##*/}" = ".." ] && removed=${removed%/*/*}
457
458 # Remove trailing /
459 [ "${removed##*/}" = "" ] && removed=${removed%/*}
460
461 echo ${removed}
462 fi
463 }
464
465 # Helper function for create_ml_includes
466 create_ml_includes-listdirs() {
467 local dirs
468 local data
469 for data in "$@"; do
470 dirs="${dirs} ${data/*:/}"
471 done
472 echo ${dirs:1}
473 }
474
475 # Helper function for create_ml_includes
476 create_ml_includes-makedestdirs() {
477 local dest=$1
478 shift
479 local basedirs=$@
480
481 dodir ${dest}
482
483 local basedir
484 for basedir in ${basedirs}; do
485 local dir
486 for dir in $(find "${D}"/${basedir} -type d); do
487 dodir ${dest}/${dir/${D}\/${basedir}/}
488 done
489 done
490 }
491
492 # Helper function for create_ml_includes
493 create_ml_includes-allfiles() {
494 local basedir file
495 for basedir in "$@" ; do
496 for file in $(find "${D}"/${basedir} -type f); do
497 echo ${file/${D}\/${basedir}\//}
498 done
499 done | sort | uniq
500 }
501
502 # Helper function for create_ml_includes
503 create_ml_includes-sym_for_dir() {
504 local dir=$1
505 shift
506 local data
507 for data in "$@"; do
508 if [[ ${data} == *:${dir} ]] ; then
509 echo ${data/:*/}
510 return 0
511 fi
512 done
513 echo "Shouldn't be here -- create_ml_includes-sym_for_dir $1 $@"
514 # exit because we'll likely be called from a subshell
515 exit 1
516 }
517
518 # @FUNCTION: get_libname
519 # @USAGE: [version]
520 # @DESCRIPTION:
521 # Returns libname with proper suffix {.so,.dylib,.dll,etc} and optionally
522 # supplied version for the current platform identified by CHOST.
523 #
524 # Example:
525 # get_libname ${PV}
526 # Returns: .so.${PV} (ELF) || .${PV}.dylib (MACH) || ...
527 get_libname() {
528 local libname
529 local ver=$1
530 case ${CHOST} in
531 *-cygwin|mingw*|*-mingw*) libname="dll";;
532 *-darwin*) libname="dylib";;
533 *-aix*) libname="a";;
534 *-mint*) libname="irrelevant";;
535 hppa*-hpux*) libname="sl";;
536 *) libname="so";;
537 esac
538
539 if [[ -z $* ]] ; then
540 echo ".${libname}"
541 else
542 for ver in "$@" ; do
543 case ${CHOST} in
544 *-darwin*) echo ".${ver}.${libname}";;
545 *-aix*) echo ".${libname}";;
546 *-mint*) echo ".${libname}";;
547 *) echo ".${libname}.${ver}";;
548 esac
549 done
550 fi
551 }
552
553 # @FUNCTION: get_modname
554 # @USAGE:
555 # @DESCRIPTION:
556 # Returns modulename with proper suffix {.so,.bundle,etc} for the current
557 # platform identified by CHOST.
558 #
559 # Example:
560 # libfoo$(get_modname)
561 # Returns: libfoo.so (ELF) || libfoo.bundle (MACH) || ...
562 get_modname() {
563 local modname
564 local ver=$1
565 case ${CHOST} in
566 *-darwin*) modname="bundle";;
567 *) modname="so";;
568 esac
569
570 echo ".${modname}"
571 }
572
573 # This is for the toolchain to setup profile variables when pulling in
574 # a crosscompiler (and thus they aren't set in the profile)
575 multilib_env() {
576 local CTARGET=${1:-${CTARGET}}
577
578 case ${CTARGET} in
579 x86_64*)
580 export CFLAGS_x86=${CFLAGS_x86--m32}
581 export CHOST_x86=${CTARGET/x86_64/i686}
582 export CTARGET_x86=${CHOST_x86}
583 export CDEFINE_x86="__i386__"
584 export LIBDIR_x86="lib"
585
586 export CFLAGS_amd64=${CFLAGS_amd64--m64}
587 export CHOST_amd64=${CTARGET}
588 export CTARGET_amd64=${CHOST_amd64}
589 export CDEFINE_amd64="__x86_64__"
590 export LIBDIR_amd64="lib64"
591
592 export MULTILIB_ABIS="amd64 x86"
593 export DEFAULT_ABI="amd64"
594 ;;
595 mips64*)
596 export CFLAGS_o32=${CFLAGS_o32--mabi=32}
597 export CHOST_o32=${CTARGET/mips64/mips}
598 export CTARGET_o32=${CHOST_o32}
599 export CDEFINE_o32="_MIPS_SIM == _ABIO32"
600 export LIBDIR_o32="lib"
601
602 export CFLAGS_n32=${CFLAGS_n32--mabi=n32}
603 export CHOST_n32=${CTARGET}
604 export CTARGET_n32=${CHOST_n32}
605 export CDEFINE_n32="_MIPS_SIM == _ABIN32"
606 export LIBDIR_n32="lib32"
607
608 export CFLAGS_n64=${CFLAGS_n64--mabi=64}
609 export CHOST_n64=${CTARGET}
610 export CTARGET_n64=${CHOST_n64}
611 export CDEFINE_n64="_MIPS_SIM == _ABI64"
612 export LIBDIR_n64="lib64"
613
614 export MULTILIB_ABIS="n64 n32 o32"
615 export DEFAULT_ABI="n32"
616 ;;
617 powerpc64*)
618 export CFLAGS_ppc=${CFLAGS_ppc--m32}
619 export CHOST_ppc=${CTARGET/powerpc64/powerpc}
620 export CTARGET_ppc=${CHOST_ppc}
621 export CDEFINE_ppc="!__powerpc64__"
622 export LIBDIR_ppc="lib"
623
624 export CFLAGS_ppc64=${CFLAGS_ppc64--m64}
625 export CHOST_ppc64=${CTARGET}
626 export CTARGET_ppc64=${CHOST_ppc64}
627 export CDEFINE_ppc64="__powerpc64__"
628 export LIBDIR_ppc64="lib64"
629
630 export MULTILIB_ABIS="ppc64 ppc"
631 export DEFAULT_ABI="ppc64"
632 ;;
633 s390x*)
634 export CFLAGS_s390=${CFLAGS_s390--m31} # the 31 is not a typo
635 export CHOST_s390=${CTARGET/s390x/s390}
636 export CTARGET_s390=${CHOST_s390}
637 export CDEFINE_s390="!__s390x__"
638 export LIBDIR_s390="lib"
639
640 export CFLAGS_s390x=${CFLAGS_s390x--m64}
641 export CHOST_s390x=${CTARGET}
642 export CTARGET_s390x=${CHOST_s390x}
643 export CDEFINE_s390x="__s390x__"
644 export LIBDIR_s390x="lib64"
645
646 export MULTILIB_ABIS="s390x s390"
647 export DEFAULT_ABI="s390x"
648 ;;
649 sparc*)
650 export CFLAGS_sparc32=${CFLAGS_sparc32}
651 export CHOST_sparc32=${CTARGET/sparc64/sparc}
652 export CTARGET_sparc32=${CHOST_sparc32}
653 export CDEFINE_sparc32="!__arch64__"
654 export LIBDIR_sparc32="lib"
655
656 export CFLAGS_sparc64=${CFLAGS_sparc64--m64}
657 export CHOST_sparc64=${CTARGET}
658 export CTARGET_sparc64=${CHOST_sparc64}
659 export CDEFINE_sparc64="__arch64__"
660 export LIBDIR_sparc64="lib64"
661
662 export MULTILIB_ABIS="${MULTILIB_ABIS-sparc64 sparc32}"
663 export DEFAULT_ABI="${DEFAULT_ABI-sparc64}"
664 ;;
665 *)
666 export MULTILIB_ABIS="default"
667 export DEFAULT_ABI="default"
668 ;;
669 esac
670 }
671
672 # @FUNCTION: multilib_toolchain_setup
673 # @DESCRIPTION:
674 # Hide multilib details here for packages which are forced to be compiled for a
675 # specific ABI when run on another ABI (like x86-specific packages on amd64)
676 multilib_toolchain_setup() {
677 local v vv
678
679 export ABI=$1
680
681 # We want to avoid the behind-the-back magic of gcc-config as it
682 # screws up ccache and distcc. See #196243 for more info.
683 if [[ ${ABI} != ${DEFAULT_ABI} ]] ; then
684 if [[ ${DEFAULT_ABI_SAVED} != "true" ]] ; then
685 for v in CHOST CBUILD AS CC CXX LD ; do
686 export __abi_saved_${v}="${!v}"
687 done
688 export DEFAULT_ABI_SAVED="true"
689 fi
690
691 # Set the CHOST native first so that we pick up the native
692 # toolchain and not a cross-compiler by accident #202811.
693 export CHOST=$(get_abi_CHOST ${DEFAULT_ABI})
694 export AS="$(tc-getAS) $(get_abi_ASFLAGS)"
695 export CC="$(tc-getCC) $(get_abi_CFLAGS)"
696 export CXX="$(tc-getCXX) $(get_abi_CFLAGS)"
697 export LD="$(tc-getLD) $(get_abi_LDFLAGS)"
698 export CHOST=$(get_abi_CHOST $1)
699 export CBUILD=$(get_abi_CHOST $1)
700
701 elif [[ ${DEFAULT_ABI_SAVED} == "true" ]] ; then
702 for v in CHOST CBUILD AS CC CXX LD ; do
703 vv="__abi_saved_${v}"
704 export ${v}=${!vv}
705 done
706 fi
707 }

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