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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 1.32 2014/04/03 21:32:56 mgorny Exp $
4 4
5# @ECLASS: multilib-build.eclass 5# @ECLASS: multilib-build.eclass
6# @MAINTAINER: 6# @MAINTAINER:
7# Michał Górny <mgorny@gentoo.org> 7# Michał Górny <mgorny@gentoo.org>
8# @BLURB: flags and utility functions for building multilib packages 8# @BLURB: flags and utility functions for building multilib packages
26inherit multibuild multilib 26inherit multibuild multilib
27 27
28# @ECLASS-VARIABLE: _MULTILIB_FLAGS 28# @ECLASS-VARIABLE: _MULTILIB_FLAGS
29# @INTERNAL 29# @INTERNAL
30# @DESCRIPTION: 30# @DESCRIPTION:
31# The list of multilib flags and corresponding ABI values. 31# The list of multilib flags and corresponding ABI values. If the same
32# flag is reused for multiple ABIs (e.g. x86 on Linux&FreeBSD), multiple
33# ABIs may be separated by commas.
32_MULTILIB_FLAGS=( 34_MULTILIB_FLAGS=(
33 abi_x86_32:x86 35 abi_x86_32:x86,x86_fbsd
34 abi_x86_64:amd64 36 abi_x86_64:amd64,amd64_fbsd
35 abi_x86_x32:x32 37 abi_x86_x32:x32
38 abi_mips_n32:n32
39 abi_mips_n64:n64
40 abi_mips_o32:o32
36) 41)
37 42
38# @ECLASS-VARIABLE: MULTILIB_USEDEP 43# @ECLASS-VARIABLE: MULTILIB_USEDEP
39# @DESCRIPTION: 44# @DESCRIPTION:
40# The USE-dependency to be used on dependencies (libraries) needing 45# The USE-dependency to be used on dependencies (libraries) needing
68 local abis=( $(get_all_abis) ) 73 local abis=( $(get_all_abis) )
69 74
70 local abi i found 75 local abi i found
71 for abi in "${abis[@]}"; do 76 for abi in "${abis[@]}"; do
72 for i in "${_MULTILIB_FLAGS[@]}"; do 77 for i in "${_MULTILIB_FLAGS[@]}"; do
73 local m_abi=${i#*:} 78 local m_abis=${i#*:} m_abi
74 local m_flag=${i%:*} 79 local m_flag=${i%:*}
75 80
81 # split on ,; we can't switch IFS for function scope because
82 # paludis is broken (bug #486592), and switching it locally
83 # for the split is more complex than cheating like this
84 for m_abi in ${m_abis//,/ }; do
76 if [[ ${m_abi} == ${abi} ]] && use "${m_flag}"; then 85 if [[ ${m_abi} == ${abi} ]] && use "${m_flag}"; then
77 echo "${abi}" 86 echo "${abi}"
78 found=1 87 found=1
88 break 2
79 fi 89 fi
90 done
80 done 91 done
81 done 92 done
82 93
83 if [[ ! ${found} ]]; then 94 if [[ ! ${found} ]]; then
84 # ${ABI} can be used to override the fallback (multilib-portage), 95 # ${ABI} can be used to override the fallback (multilib-portage),
224# MULTILIB_WRAPPED_HEADERS=( 235# MULTILIB_WRAPPED_HEADERS=(
225# /usr/include/foobar/config.h 236# /usr/include/foobar/config.h
226# ) 237# )
227# @CODE 238# @CODE
228 239
240# @ECLASS-VARIABLE: MULTILIB_CHOST_TOOLS
241# @DESCRIPTION:
242# A list of tool executables to preserve for each multilib ABI.
243# The listed executables will be renamed to ${CHOST}-${basename},
244# and the native variant will be symlinked to the generic name.
245#
246# This variable has to be a bash array. Paths shall be relative to
247# installation root (${ED}), and name regular files or symbolic
248# links to regular files. Recursive wrapping is not supported.
249#
250# If symbolic link is passed, both symlink path and symlink target
251# will be changed. As a result, the symlink target is expected
252# to be wrapped as well (either by listing in MULTILIB_CHOST_TOOLS
253# or externally).
254#
255# Please note that tool wrapping is *discouraged*. It is preferred to
256# install pkg-config files for each ABI, and require reverse
257# dependencies to use that.
258#
259# Packages that search for tools properly (e.g. using AC_PATH_TOOL
260# macro) will find the wrapper executables automatically. Other packages
261# will need explicit override of tool paths.
262#
263# Example:
264# @CODE
265# MULTILIB_CHOST_TOOLS=(
266# /usr/bin/foo-config
267# )
268
269# @CODE
229# @FUNCTION: multilib_prepare_wrappers 270# @FUNCTION: multilib_prepare_wrappers
230# @USAGE: [<install-root>] 271# @USAGE: [<install-root>]
231# @DESCRIPTION: 272# @DESCRIPTION:
232# Perform the preparation of all kinds of wrappers for the current ABI. 273# Perform the preparation of all kinds of wrappers for the current ABI.
233# This function shall be called once per each ABI, after installing 274# This function shall be called once per each ABI, after installing
260 fi 301 fi
261 # and then usr/include 302 # and then usr/include
262 f=${f#usr/include} 303 f=${f#usr/include}
263 304
264 local dir=${f%/*} 305 local dir=${f%/*}
265
266 # $CHOST shall be set by multilib_toolchain_setup
267 dodir "/tmp/multilib-include/${CHOST}${dir}"
268 mv "${root}/usr/include${f}" "${ED}/tmp/multilib-include/${CHOST}${dir}/" || die
269 306
270 if [[ ! -f ${ED}/tmp/multilib-include${f} ]]; then 307 if [[ ! -f ${ED}/tmp/multilib-include${f} ]]; then
271 dodir "/tmp/multilib-include${dir}" 308 dodir "/tmp/multilib-include${dir}"
272 # a generic template 309 # a generic template
273 cat > "${ED}/tmp/multilib-include${f}" <<_EOF_ 310 cat > "${ED}/tmp/multilib-include${f}" <<_EOF_
282# else /* 64-bit ABI */ 319# else /* 64-bit ABI */
283# error "abi_x86_64 not supported by the package." 320# error "abi_x86_64 not supported by the package."
284# endif 321# endif
285#elif defined(__i386__) /* plain x86 */ 322#elif defined(__i386__) /* plain x86 */
286# error "abi_x86_32 not supported by the package." 323# error "abi_x86_32 not supported by the package."
324#elif defined(__mips__)
325# if(_MIPS_SIM == _ABIN32) /* n32 */
326# error "abi_mips_n32 not supported by the package."
327# elif(_MIPS_SIM == _ABI64) /* n64 */
328# error "abi_mips_n64 not supported by the package."
329# elif(_MIPS_SIM == _ABIO32) /* o32 */
330# error "abi_mips_o32 not supported by the package."
331# endif
287#else 332#else
288# error "No ABI matched, please report a bug to bugs.gentoo.org" 333# error "No ABI matched, please report a bug to bugs.gentoo.org"
289#endif 334#endif
290_EOF_ 335_EOF_
291 fi 336 fi
292 337
338 # Some ABIs may have install less files than others.
339 if [[ -f ${root}/usr/include${f} ]]; then
340 # $CHOST shall be set by multilib_toolchain_setup
341 dodir "/tmp/multilib-include/${CHOST}${dir}"
342 mv "${root}/usr/include${f}" "${ED}/tmp/multilib-include/${CHOST}${dir}/" || die
343
293 # XXX: get abi_* directly 344 # XXX: get abi_* directly
294 local abi_flag 345 local abi_flag
295 case "${ABI}" in 346 case "${ABI}" in
296 amd64) 347 amd64|amd64_fbsd)
297 abi_flag=abi_x86_64;; 348 abi_flag=abi_x86_64;;
298 x86) 349 x86|x86_fbsd)
299 abi_flag=abi_x86_32;; 350 abi_flag=abi_x86_32;;
300 x32) 351 x32)
301 abi_flag=abi_x86_x32;; 352 abi_flag=abi_x86_x32;;
353 n32)
354 abi_flag=abi_mips_n32;;
355 n64)
356 abi_flag=abi_mips_n64;;
357 o32)
358 abi_flag=abi_mips_o32;;
302 *) 359 *)
303 die "Header wrapping for ${ABI} not supported yet";; 360 die "Header wrapping for ${ABI} not supported yet";;
304 esac 361 esac
305 362
306 # Note: match a space afterwards to avoid collision potential. 363 # Note: match a space afterwards to avoid collision potential.
307 sed -e "/${abi_flag} /s&error.*&include <${CHOST}${f}>&" \ 364 sed -e "/${abi_flag} /s&error.*&include <${CHOST}${f}>&" \
308 -i "${ED}/tmp/multilib-include${f}" || die 365 -i "${ED}/tmp/multilib-include${f}" || die
366 fi
367 done
368
369 for f in "${MULTILIB_CHOST_TOOLS[@]}"; do
370 # drop leading slash if it's there
371 f=${f#/}
372
373 local dir=${f%/*}
374 local fn=${f##*/}
375
376 if [[ -L ${root}/${f} ]]; then
377 # rewrite the symlink target
378 local target=$(readlink "${root}/${f}")
379 local target_dir
380 local target_fn=${target##*/}
381
382 [[ ${target} == */* ]] && target_dir=${target%/*}
383
384 ln -f -s "${target_dir+${target_dir}/}${CHOST}-${target_fn}" \
385 "${root}/${f}" || die
386 fi
387
388 mv "${root}/${f}" "${root}/${dir}/${CHOST}-${fn}" || die
389
390 # symlink the native one back
391 if multilib_build_binaries; then
392 ln -s "${CHOST}-${fn}" "${root}/${f}" || die
393 fi
309 done 394 done
310} 395}
311 396
312# @FUNCTION: multilib_install_wrappers 397# @FUNCTION: multilib_install_wrappers
313# @USAGE: [<install-root>] 398# @USAGE: [<install-root>]
336 # it can fail if something else uses /tmp 421 # it can fail if something else uses /tmp
337 rmdir "${ED}"/tmp &>/dev/null 422 rmdir "${ED}"/tmp &>/dev/null
338 fi 423 fi
339} 424}
340 425
426# @FUNCTION: multilib_is_native_abi
427# @DESCRIPTION:
428# Determine whether the currently built ABI is the profile native.
429# Return true status (0) if that is true, otherwise false (1).
430#
431# This function is not intended to be used directly. Please use
432# multilib_build_binaries instead.
433multilib_is_native_abi() {
434 debug-print-function ${FUNCNAME} "${@}"
435
436 [[ ${#} -eq 0 ]] || die "${FUNCNAME}: too many arguments"
437
438 [[ ${ABI} == ${DEFAULT_ABI} ]]
439}
440
441# @FUNCTION: multilib_build_binaries
442# @DESCRIPTION:
443# Determine whether to build binaries for the currently built ABI.
444# Returns true status (0) if the currently built ABI is the profile
445# native or COMPLETE_MULTILIB variable is set to 'yes', otherwise
446# false (1).
447#
448# This is often useful for configure calls when some of the options are
449# supposed to be disabled for multilib ABIs (like those used for
450# executables only).
451multilib_build_binaries() {
452 debug-print-function ${FUNCNAME} "${@}"
453
454 [[ ${#} -eq 0 ]] || die "${FUNCNAME}: too many arguments"
455
456 [[ ${COMPLETE_MULTILIB} == yes ]] || multilib_is_native_abi
457}
458
341_MULTILIB_BUILD=1 459_MULTILIB_BUILD=1
342fi 460fi

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