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1# Copyright 1999-2013 Gentoo Foundation 1# Copyright 1999-2014 Gentoo Foundation
2# Distributed under the terms of the GNU General Public License v2 2# Distributed under the terms of the GNU General Public License v2
3# $Header: /var/cvsroot/gentoo-x86/eclass/multilib-build.eclass,v 1.14 2013/06/28 02:37:52 mgorny Exp $ 3# $Header: /var/cvsroot/gentoo-x86/eclass/multilib-build.eclass,v 1.48 2014/05/12 21:56:17 mgorny Exp $
4 4
5# @ECLASS: multilib-build.eclass 5# @ECLASS: multilib-build.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# gx86-multilib team <multilib@gentoo.org>
8# @AUTHOR:
7# Michał Górny <mgorny@gentoo.org> 9# Author: Michał Górny <mgorny@gentoo.org>
8# @BLURB: flags and utility functions for building multilib packages 10# @BLURB: flags and utility functions for building multilib packages
9# @DESCRIPTION: 11# @DESCRIPTION:
10# The multilib-build.eclass exports USE flags and utility functions 12# The multilib-build.eclass exports USE flags and utility functions
11# necessary to build packages for multilib in a clean and uniform 13# necessary to build packages for multilib in a clean and uniform
12# manner. 14# manner.
26inherit multibuild multilib 28inherit multibuild multilib
27 29
28# @ECLASS-VARIABLE: _MULTILIB_FLAGS 30# @ECLASS-VARIABLE: _MULTILIB_FLAGS
29# @INTERNAL 31# @INTERNAL
30# @DESCRIPTION: 32# @DESCRIPTION:
31# The list of multilib flags and corresponding ABI values. 33# The list of multilib flags and corresponding ABI values. If the same
34# flag is reused for multiple ABIs (e.g. x86 on Linux&FreeBSD), multiple
35# ABIs may be separated by commas.
36#
37# Please contact multilib before modifying this list. This way we can
38# ensure that every *preliminary* work is done and the multilib can be
39# extended safely.
32_MULTILIB_FLAGS=( 40_MULTILIB_FLAGS=(
33 abi_x86_32:x86 41 abi_x86_32:x86,x86_fbsd
34 abi_x86_64:amd64 42 abi_x86_64:amd64,amd64_fbsd
35 abi_x86_x32:x32 43 abi_x86_x32:x32
44 abi_mips_n32:n32
45 abi_mips_n64:n64
46 abi_mips_o32:o32
36) 47)
48
49# @ECLASS-VARIABLE: MULTILIB_COMPAT
50# @DEFAULT_UNSET
51# @DESCRIPTION:
52# List of multilib ABIs supported by the ebuild. If unset, defaults to
53# all ABIs supported by the eclass.
54#
55# This variable is intended for use in prebuilt multilib packages that
56# can provide binaries only for a limited set of ABIs. If ABIs need to
57# be limited due to a bug in source code, package.use.mask is
58# recommended instead.
59#
60# Example use:
61# @CODE
62# # Upstream provides binaries for x86 & amd64 only
63# MULTILIB_COMPAT=( abi_x86_{32,64} )
64# @CODE
37 65
38# @ECLASS-VARIABLE: MULTILIB_USEDEP 66# @ECLASS-VARIABLE: MULTILIB_USEDEP
39# @DESCRIPTION: 67# @DESCRIPTION:
40# The USE-dependency to be used on dependencies (libraries) needing 68# The USE-dependency to be used on dependencies (libraries) needing
41# to support multilib as well. 69# to support multilib as well.
46# net-libs/libbar[ssl,${MULTILIB_USEDEP}]" 74# net-libs/libbar[ssl,${MULTILIB_USEDEP}]"
47# @CODE 75# @CODE
48 76
49_multilib_build_set_globals() { 77_multilib_build_set_globals() {
50 local flags=( "${_MULTILIB_FLAGS[@]%:*}" ) 78 local flags=( "${_MULTILIB_FLAGS[@]%:*}" )
79
80 if [[ ${MULTILIB_COMPAT[@]} ]]; then
81 # Validate MULTILIB_COMPAT and filter out the flags.
82 local f
83 for f in "${MULTILIB_COMPAT[@]}"; do
84 if ! has "${f}" "${flags[@]}"; then
85 die "Invalid value in MULTILIB_COMPAT: ${f}"
86 fi
87 done
88
89 flags=( "${MULTILIB_COMPAT[@]}" )
90 fi
91
51 local usedeps=${flags[@]/%/(-)?} 92 local usedeps=${flags[@]/%/(-)?}
52 93
53 IUSE=${flags[*]} 94 IUSE=${flags[*]}
54 MULTILIB_USEDEP=${usedeps// /,} 95 MULTILIB_USEDEP=${usedeps// /,}
55} 96}
68 local abis=( $(get_all_abis) ) 109 local abis=( $(get_all_abis) )
69 110
70 local abi i found 111 local abi i found
71 for abi in "${abis[@]}"; do 112 for abi in "${abis[@]}"; do
72 for i in "${_MULTILIB_FLAGS[@]}"; do 113 for i in "${_MULTILIB_FLAGS[@]}"; do
73 local m_abi=${i#*:} 114 local m_abis=${i#*:} m_abi
74 local m_flag=${i%:*} 115 local m_flag=${i%:*}
75 116
117 # split on ,; we can't switch IFS for function scope because
118 # paludis is broken (bug #486592), and switching it locally
119 # for the split is more complex than cheating like this
120 for m_abi in ${m_abis//,/ }; do
76 if [[ ${m_abi} == ${abi} ]] && use "${m_flag}"; then 121 if [[ ${m_abi} == ${abi} ]] && use "${m_flag}"; then
77 echo "${abi}" 122 echo "${abi}"
78 found=1 123 found=1
124 break 2
79 fi 125 fi
126 done
80 done 127 done
81 done 128 done
82 129
83 if [[ ! ${found} ]]; then 130 if [[ ! ${found} ]]; then
84 # ${ABI} can be used to override the fallback (multilib-portage), 131 # ${ABI} can be used to override the fallback (multilib-portage),
224# MULTILIB_WRAPPED_HEADERS=( 271# MULTILIB_WRAPPED_HEADERS=(
225# /usr/include/foobar/config.h 272# /usr/include/foobar/config.h
226# ) 273# )
227# @CODE 274# @CODE
228 275
276# @ECLASS-VARIABLE: MULTILIB_CHOST_TOOLS
277# @DESCRIPTION:
278# A list of tool executables to preserve for each multilib ABI.
279# The listed executables will be renamed to ${CHOST}-${basename},
280# and the native variant will be symlinked to the generic name.
281#
282# This variable has to be a bash array. Paths shall be relative to
283# installation root (${ED}), and name regular files or symbolic
284# links to regular files. Recursive wrapping is not supported.
285#
286# If symbolic link is passed, both symlink path and symlink target
287# will be changed. As a result, the symlink target is expected
288# to be wrapped as well (either by listing in MULTILIB_CHOST_TOOLS
289# or externally).
290#
291# Please note that tool wrapping is *discouraged*. It is preferred to
292# install pkg-config files for each ABI, and require reverse
293# dependencies to use that.
294#
295# Packages that search for tools properly (e.g. using AC_PATH_TOOL
296# macro) will find the wrapper executables automatically. Other packages
297# will need explicit override of tool paths.
298#
299# Example:
300# @CODE
301# MULTILIB_CHOST_TOOLS=(
302# /usr/bin/foo-config
303# )
304
305# @CODE
229# @FUNCTION: multilib_prepare_wrappers 306# @FUNCTION: multilib_prepare_wrappers
230# @USAGE: [<install-root>] 307# @USAGE: [<install-root>]
231# @DESCRIPTION: 308# @DESCRIPTION:
232# Perform the preparation of all kinds of wrappers for the current ABI. 309# Perform the preparation of all kinds of wrappers for the current ABI.
233# This function shall be called once per each ABI, after installing 310# This function shall be called once per each ABI, after installing
249 [[ ${#} -le 1 ]] || die "${FUNCNAME}: too many arguments" 326 [[ ${#} -le 1 ]] || die "${FUNCNAME}: too many arguments"
250 327
251 local root=${1:-${ED}} 328 local root=${1:-${ED}}
252 local f 329 local f
253 330
331 if [[ ${COMPLETE_MULTILIB} == yes ]]; then
332 # symlink '${CHOST}-foo -> foo' to support abi-wrapper while
333 # keeping ${CHOST}-foo calls correct.
334
335 for f in "${MULTILIB_CHOST_TOOLS[@]}"; do
336 # drop leading slash if it's there
337 f=${f#/}
338
339 local dir=${f%/*}
340 local fn=${f##*/}
341
342 ln -s "${fn}" "${root}/${dir}/${CHOST}-${fn}" || die
343 done
344
345 return
346 fi
347
254 for f in "${MULTILIB_WRAPPED_HEADERS[@]}"; do 348 for f in "${MULTILIB_CHOST_TOOLS[@]}"; do
255 # drop leading slash if it's there 349 # drop leading slash if it's there
256 f=${f#/} 350 f=${f#/}
257 351
258 if [[ ${f} != usr/include/* ]]; then 352 local dir=${f%/*}
259 die "Wrapping headers outside of /usr/include is not supported at the moment." 353 local fn=${f##*/}
354
355 if [[ -L ${root}/${f} ]]; then
356 # rewrite the symlink target
357 local target=$(readlink "${root}/${f}")
358 local target_dir
359 local target_fn=${target##*/}
360
361 [[ ${target} == */* ]] && target_dir=${target%/*}
362
363 ln -f -s "${target_dir+${target_dir}/}${CHOST}-${target_fn}" \
364 "${root}/${f}" || die
260 fi 365 fi
366
367 mv "${root}/${f}" "${root}/${dir}/${CHOST}-${fn}" || die
368
369 # symlink the native one back
370 if multilib_is_native_abi; then
371 ln -s "${CHOST}-${fn}" "${root}/${f}" || die
372 fi
373 done
374
375 if [[ ${MULTILIB_WRAPPED_HEADERS[@]} ]]; then
376 # XXX: get abi_* directly
377 local abi_flag
378 case "${ABI}" in
379 amd64|amd64_fbsd)
380 abi_flag=abi_x86_64;;
381 x86|x86_fbsd)
382 abi_flag=abi_x86_32;;
383 x32)
384 abi_flag=abi_x86_x32;;
385 n32)
386 abi_flag=abi_mips_n32;;
387 n64)
388 abi_flag=abi_mips_n64;;
389 o32)
390 abi_flag=abi_mips_o32;;
391 esac
392
393 # If abi_flag is unset, then header wrapping is unsupported
394 # on this ABI. This could mean either that:
395 #
396 # 1) the arch doesn't support multilib at all -- in this case,
397 # the headers are not wrapped and everything works as expected,
398 #
399 # 2) someone added new ABI and forgot to update the function --
400 # in this case, the header consistency check will notice one of
401 # those ABIs has an extra header (compared to the header moved
402 # for wrapping) and will fail.
403
404 if [[ ${abi_flag} ]]; then
405 for f in "${MULTILIB_WRAPPED_HEADERS[@]}"; do
406 # drop leading slash if it's there
407 f=${f#/}
408
409 if [[ ${f} != usr/include/* ]]; then
410 die "Wrapping headers outside of /usr/include is not supported at the moment."
411 fi
261 # and then usr/include 412 # and then usr/include
262 f=${f#usr/include} 413 f=${f#usr/include}
263 414
264 local dir=${f%/*} 415 local dir=${f%/*}
265 416
266 # $CHOST shall be set by multilib_toolchain_setup 417 # Some ABIs may have install less files than others.
267 dodir "/tmp/multilib-include/${CHOST}${dir}" 418 if [[ -f ${root}/usr/include${f} ]]; then
268 mv "${root}/usr/include${f}" "${ED}/tmp/multilib-include/${CHOST}${dir}/" || die
269
270 if [[ ! -f ${ED}/tmp/multilib-include${f} ]]; then 419 if [[ ! -f ${ED}/tmp/multilib-include${f} ]]; then
271 dodir "/tmp/multilib-include${dir}" 420 dodir "/tmp/multilib-include${dir}"
272 # a generic template 421 # a generic template
273 cat > "${ED}/tmp/multilib-include${f}" <<_EOF_ 422 cat > "${ED}/tmp/multilib-include${f}" <<_EOF_
274/* This file is auto-generated by multilib-build.eclass 423/* This file is auto-generated by multilib-build.eclass
275 * as a multilib-friendly wrapper. For the original content, 424 * as a multilib-friendly wrapper. For the original content,
276 * please see the files that are #included below. 425 * please see the files that are #included below.
277 */ 426 */
278 427
282# else /* 64-bit ABI */ 431# else /* 64-bit ABI */
283# error "abi_x86_64 not supported by the package." 432# error "abi_x86_64 not supported by the package."
284# endif 433# endif
285#elif defined(__i386__) /* plain x86 */ 434#elif defined(__i386__) /* plain x86 */
286# error "abi_x86_32 not supported by the package." 435# error "abi_x86_32 not supported by the package."
436#elif defined(__mips__)
437# if(_MIPS_SIM == _ABIN32) /* n32 */
438# error "abi_mips_n32 not supported by the package."
439# elif(_MIPS_SIM == _ABI64) /* n64 */
440# error "abi_mips_n64 not supported by the package."
441# elif(_MIPS_SIM == _ABIO32) /* o32 */
442# error "abi_mips_o32 not supported by the package."
443# endif
287#else 444#else
288# error "No ABI matched, please report a bug to bugs.gentoo.org" 445# error "No ABI matched, please report a bug to bugs.gentoo.org"
289#endif 446#endif
290_EOF_ 447_EOF_
448 fi
449
450 # $CHOST shall be set by multilib_toolchain_setup
451 dodir "/tmp/multilib-include/${CHOST}${dir}"
452 mv "${root}/usr/include${f}" "${ED}/tmp/multilib-include/${CHOST}${dir}/" || die
453
454 # Note: match a space afterwards to avoid collision potential.
455 sed -e "/${abi_flag} /s&error.*&include <${CHOST}${f}>&" \
456 -i "${ED}/tmp/multilib-include${f}" || die
457
458 # Hack for emul-linux-x86 compatibility.
459 # It assumes amd64 will come after x86, and will use amd64
460 # headers if no specific x86 headers were installed.
461 if [[ ${ABI} == amd64 ]]; then
462 sed -e "/abi_x86_32 /s&error.*&include <${CHOST}${f}>&" \
463 -i "${ED}/tmp/multilib-include${f}" || die
464 fi
465 fi
466 done
291 fi 467 fi
292 468 fi
293 # XXX: get abi_* directly
294 local abi_flag
295 case "${ABI}" in
296 amd64)
297 abi_flag=abi_x86_64;;
298 x86)
299 abi_flag=abi_x86_32;;
300 x32)
301 abi_flag=abi_x86_x32;;
302 *)
303 die "Header wrapping for ${ABI} not supported yet";;
304 esac
305
306 # Note: match a space afterwards to avoid collision potential.
307 sed -e "/${abi_flag} /s&error.*&include <${CHOST}${f}>&" \
308 -i "${ED}/tmp/multilib-include${f}" || die
309 done
310} 469}
311 470
312# @FUNCTION: multilib_install_wrappers 471# @FUNCTION: multilib_install_wrappers
313# @USAGE: [<install-root>] 472# @USAGE: [<install-root>]
314# @DESCRIPTION: 473# @DESCRIPTION:
326multilib_install_wrappers() { 485multilib_install_wrappers() {
327 debug-print-function ${FUNCNAME} "${@}" 486 debug-print-function ${FUNCNAME} "${@}"
328 487
329 [[ ${#} -le 1 ]] || die "${FUNCNAME}: too many arguments" 488 [[ ${#} -le 1 ]] || die "${FUNCNAME}: too many arguments"
330 489
490 [[ ${COMPLETE_MULTILIB} == yes ]] && return
491
331 local root=${1:-${ED}} 492 local root=${1:-${ED}}
332 493
333 if [[ -d "${ED}"/tmp/multilib-include ]]; then 494 if [[ -d "${ED}"/tmp/multilib-include ]]; then
334 multibuild_merge_root \ 495 multibuild_merge_root \
335 "${ED}"/tmp/multilib-include "${root}"/usr/include 496 "${ED}"/tmp/multilib-include "${root}"/usr/include
336 # it can fail if something else uses /tmp 497 # it can fail if something else uses /tmp
337 rmdir "${ED}"/tmp &>/dev/null 498 rmdir "${ED}"/tmp &>/dev/null
338 fi 499 fi
339} 500}
340 501
502# @FUNCTION: multilib_is_native_abi
503# @DESCRIPTION:
504# Determine whether the currently built ABI is the profile native.
505# Return true status (0) if that is true, otherwise false (1).
506#
507# This function is not intended to be used directly. Please use
508# multilib_build_binaries instead.
509multilib_is_native_abi() {
510 debug-print-function ${FUNCNAME} "${@}"
511
512 [[ ${#} -eq 0 ]] || die "${FUNCNAME}: too many arguments"
513
514 [[ ${COMPLETE_MULTILIB} == yes || ${ABI} == ${DEFAULT_ABI} ]]
515}
516
517# @FUNCTION: multilib_build_binaries
518# @DESCRIPTION:
519# Determine whether to build binaries for the currently built ABI.
520# Returns true status (0) if the currently built ABI is the profile
521# native or COMPLETE_MULTILIB variable is set to 'yes', otherwise
522# false (1).
523#
524# This is often useful for configure calls when some of the options are
525# supposed to be disabled for multilib ABIs (like those used for
526# executables only).
527multilib_build_binaries() {
528 debug-print-function ${FUNCNAME} "${@}"
529
530 eqawarn "QA warning: multilib_build_binaries is deprecated. Please use the equivalent"
531 eqawarn "multilib_is_native_abi function instead."
532
533 multilib_is_native_abi "${@}"
534}
535
536# @FUNCTION: multilib_native_use_with
537# @USAGE: <flag> [<opt-name> [<opt-value>]]
538# @DESCRIPTION:
539# Output --with configure option alike use_with if USE <flag> is enabled
540# and executables are being built (multilib_is_native_abi is true).
541# Otherwise, outputs --without configure option. Arguments are the same
542# as for use_with in the EAPI.
543multilib_native_use_with() {
544 if multilib_is_native_abi; then
545 use_with "${@}"
546 else
547 echo "--without-${2:-${1}}"
548 fi
549}
550
551# @FUNCTION: multilib_native_use_enable
552# @USAGE: <flag> [<opt-name> [<opt-value>]]
553# @DESCRIPTION:
554# Output --enable configure option alike use_with if USE <flag>
555# is enabled and executables are being built (multilib_is_native_abi
556# is true). Otherwise, outputs --disable configure option. Arguments are
557# the same as for use_enable in the EAPI.
558multilib_native_use_enable() {
559 if multilib_is_native_abi; then
560 use_enable "${@}"
561 else
562 echo "--disable-${2:-${1}}"
563 fi
564}
565
566# @FUNCTION: multilib_native_usex
567# @USAGE: <flag> [<true1> [<false1> [<true2> [<false2>]]]]
568# @DESCRIPTION:
569# Output the concatenation of <true1> (or 'yes' if unspecified)
570# and <true2> if USE <flag> is enabled and executables are being built
571# (multilib_is_native_abi is true). Otherwise, output the concatenation
572# of <false1> (or 'no' if unspecified) and <false2>. Arguments
573# are the same as for usex in the EAPI.
574#
575# Note: in EAPI 4 you need to inherit eutils to use this function.
576multilib_native_usex() {
577 if multilib_is_native_abi; then
578 usex "${@}"
579 else
580 echo "${3-no}${5}"
581 fi
582}
583
341_MULTILIB_BUILD=1 584_MULTILIB_BUILD=1
342fi 585fi

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