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Revision 1.18		Revision 1.102
1	# Copyright 1999-2004 Gentoo Foundation	1	# Copyright 1999-2013 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.eclass,v 1.18 2005/02/03 05:52:51 eradicator Exp $	3	# $Header: /var/cvsroot/gentoo-x86/eclass/multilib.eclass,v 1.102 2013/01/21 19:22:25 mgorny Exp $
4	#	4
5	# Author: Jeremy Huddleston <eradicator@gentoo.org>	5	# @ECLASS: multilib.eclass
6	#	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:
7	# This eclass is for all functions pertaining to handling multilib.	11	# This eclass is for all functions pertaining to handling multilib configurations.
8	# configurations.
9		12
10	ECLASS=multilib	13	if [[ ${___ECLASS_ONCE_MULTILIB} != "recur -_+^+_- spank" ]] ; then
11	INHERITED="$INHERITED $ECLASS"	14	___ECLASS_ONCE_MULTILIB="recur -_+^+_- spank"
12		15
13	DESCRIPTION="Based on the ${ECLASS} eclass"	16	inherit toolchain-funcs
14		17
		18	# Defaults:
		19	export MULTILIB_ABIS=${MULTILIB_ABIS:-"default"}
		20	export DEFAULT_ABI=${DEFAULT_ABI:-"default"}
		21	export CFLAGS_default
		22	export LDFLAGS_default
		23	export CHOST_default=${CHOST_default:-${CHOST}}
		24	export CTARGET_default=${CTARGET_default:-${CTARGET:-${CHOST_default}}}
		25	export LIBDIR_default=${CONF_LIBDIR:-"lib"}
		26	export KERNEL_ABI=${KERNEL_ABI:-${DEFAULT_ABI}}
		27
15	# has_multilib_profile:	28	# @FUNCTION: has_multilib_profile
		29	# @DESCRIPTION:
16	# Return true if the current profile is a multilib profile and lists more than	30	# Return true if the current profile is a multilib profile and lists more than
17	# one abi in ${MULTILIB_ABIS}. You might want to use this like	31	# one abi in ${MULTILIB_ABIS}. When has_multilib_profile returns true, that
18	# 'use multilib \|\| has_multilib_profile' until all profiles utilizing the	32	# profile should enable the 'multilib' use flag. This is so you can DEPEND on
19	# 'multilib' use flag are removed from portage	33	# a package only for multilib or not multilib.
20
21	# is_final_abi:
22	# Return true if ${ABI} is the final abi to be installed (and thus we are
23	# on our last run through a src_* function.
24
25	# number_abis:
26	# echo the number of ABIs we will be installing for
27
28	# get_install_abis:
29	# Return a list of the ABIs we want to install for with
30	# the last one in the list being the default.
31
32	# get_all_abis:
33	# Return a list of the ABIs supported by this profile.
34	# the last one in the list being the default.
35
36	# get_all_libdirs:
37	# Returns a list of all the libdirs used by this profile. This includes
38	# those that might not be touched by the current ebuild and always includes
39	# "lib".
40
41	# get_libdir:
42	# Returns the libdir for the selected ABI. This is backwards compatible
43	# and simply calls get_abi_LIBDIR() on newer profiles. You should use this
44	# to determine where to install shared objects (ex: /usr/$(get_libdir))
45
46	# get_abi_var <VAR> [<ABI>]:
47	# returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
48	#
49	# get_abi_CFLAGS:
50	# get_abi_CDEFINE:
51	# get_abi_LIBDIR:
52	# Aliases for 'get_abi_var CFLAGS', etc.
53
54	# get_ml_incdir [<include dir> [<ABI>]]
55	# include dir defaults to /usr/include
56	# ABI defaults to ${ABI} or ${DEFAULT_ABI}
57	#
58	# If a multilib include dir is associated with the passed include dir, then
59	# we return it, otherwise, we just echo back the include dir. This is
60	# neccessary when a built script greps header files rather than testing them
61	# via #include (like perl) to figure out features.
62
63	# prep_ml_includes:
64	# Some includes (include/asm, glibc, etc) are ABI dependent. In this case,
65	# We can install them in different locations for each ABI and create a common
66	# header which includes the right one based on CDEFINE_${ABI}. If your
67	# package installs ABI-specific headers, just add 'prep_ml_includes' to the
68	# end of your src_install(). It takes a list of directories that include
69	# files are installed in (default is /usr/include if none are passed).
70	#
71	# Example:
72	# src_install() {
73	# ...
74	# prep_ml_includes /usr/qt/3/include
75	# }
76
77	# create_ml_includes <include dir> <symbol 1>:<dir 1> [<symbol 2>:<dir 2> ...]
78	# If you need more control than prep_ml_includes can offer (like linux-headers
79	# for the asm-* dirs, then use create_ml_includes. The firs argument is the
80	# common dir. The remaining args are of the form <symbol>:<dir> where
81	# <symbol> is what is put in the #ifdef for choosing that dir.
82	#
83	# Ideas for this code came from debian's sparc-linux headers package.
84	#
85	# Example:
86	# create_ml_includes /usr/include/asm __sparc__:/usr/include/asm-sparc __sparc64__:/usr/include/asm-sparc64
87	# create_ml_includes /usr/include/asm __i386__:/usr/include/asm-i386 __x86_64__:/usr/include/asm-x86_64
88
89	### END DOCUMENTATION ###
90
91	# has_multilib_profile()
92	has_multilib_profile() {	34	has_multilib_profile() {
93	[ -n "${MULTILIB_ABIS}" -a "${MULTILIB_ABIS}" != "${MULTILIB_ABIS/ /}" ]	35	[ -n "${MULTILIB_ABIS}" -a "${MULTILIB_ABIS}" != "${MULTILIB_ABIS/ /}" ]
94	}	36	}
95		37
		38	# @FUNCTION: get_libdir
		39	# @RETURN: the libdir for the selected ABI
		40	# @DESCRIPTION:
96	# This function simply returns the desired lib directory. With portage	41	# This function simply returns the desired lib directory. With portage
97	# 2.0.51, we now have support for installing libraries to lib32/lib64	42	# 2.0.51, we now have support for installing libraries to lib32/lib64
98	# to accomidate the needs of multilib systems. It's no longer a good idea	43	# to accomidate the needs of multilib systems. It's no longer a good idea
99	# to assume all libraries will end up in lib. Replace any (sane) instances	44	# to assume all libraries will end up in lib. Replace any (sane) instances
100	# where lib is named directly with $(get_libdir) if possible.	45	# where lib is named directly with $(get_libdir) if possible.
101	#
102	# Travis Tilley <lv@gentoo.org> (24 Aug 2004)
103	#	46	#
104	# Jeremy Huddleston <eradicator@gentoo.org> (23 Dec 2004):	47	# Jeremy Huddleston <eradicator@gentoo.org> (23 Dec 2004):
105	# Added support for ${ABI} and ${DEFAULT_ABI}. If they're both not set,	48	# Added support for ${ABI} and ${DEFAULT_ABI}. If they're both not set,
106	# fall back on old behavior. Any profile that has these set should also	49	# fall back on old behavior. Any profile that has these set should also
107	# depend on a newer version of portage (not yet released) which uses these	50	# depend on a newer version of portage (not yet released) which uses these
108	# over CONF_LIBDIR in econf, dolib, etc...	51	# over CONF_LIBDIR in econf, dolib, etc...
109	get_libdir() {	52	get_libdir() {
110	LIBDIR_TEST=$(type econf)	53	local CONF_LIBDIR
111	if [ ! -z "${CONF_LIBDIR_OVERRIDE}" ] ; then	54	if [ -n "${CONF_LIBDIR_OVERRIDE}" ] ; then
112	# if there is an override, we want to use that... always.	55	# if there is an override, we want to use that... always.
113	CONF_LIBDIR="${CONF_LIBDIR_OVERRIDE}"
114	elif [ -n "$(get_abi_LIBDIR)" ]; then
115	CONF_LIBDIR="$(get_abi_LIBDIR)"
116	elif [ "${LIBDIR_TEST/CONF_LIBDIR}" == "${LIBDIR_TEST}" ]; then # we don't have CONF_LIBDIR support
117	# will be <portage-2.0.51_pre20
118	CONF_LIBDIR="lib"
119	fi
120	# and of course, default to lib if CONF_LIBDIR isnt set
121	echo ${CONF_LIBDIR:=lib}
122	unset LIBDIR_TEST
123	}
124
125	get_multilibdir() {
126	if [ -n "$(get_abi_LIBDIR)" ]; then
127	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"
128	exit 1
129	fi
130	echo ${CONF_MULTILIBDIR:=lib32}
131	}
132
133	# Sometimes you need to override the value returned by get_libdir. A good
134	# example of this is xorg-x11, where lib32 isnt a supported configuration,
135	# and where lib64 -must- be used on amd64 (for applications that need lib
136	# to be 32bit, such as adobe acrobat). Note that this override also bypasses
137	# portage version sanity checking.
138	# get_libdir_override expects one argument, the result get_libdir should
139	# return:
140	#
141	# get_libdir_override lib64
142	#
143	# Travis Tilley <lv@gentoo.org> (31 Aug 2004)
144	get_libdir_override() {
145	if [ -n "$(get_abi_LIBDIR)" ]; then
146	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"
147	exit 1
148	fi
149	CONF_LIBDIR="$1"
150	CONF_LIBDIR_OVERRIDE="$1"	56	echo ${CONF_LIBDIR_OVERRIDE}
		57	else
		58	get_abi_LIBDIR
		59	fi
151	}	60	}
152		61
153	# get_abi_var <VAR> [<ABI>]	62	# @FUNCTION: get_abi_var
		63	# @USAGE: <VAR> [ABI]
154	# returns the value of ${<VAR>_<ABI>} which should be set in make.defaults	64	# @RETURN: returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
155	#	65	# @INTERNAL
		66	# @DESCRIPTION:
156	# ex:	67	# ex:
157	# CFLAGS=$(get_abi_var CFLAGS sparc32) # CFLAGS=-m32	68	# CFLAGS=$(get_abi_var CFLAGS sparc32) # CFLAGS=-m32
158	#	69	#
159	# Note that the prefered method is to set CC="$(tc-getCC) $(get_abi_CFLAGS)"	70	# Note that the prefered method is to set CC="$(tc-getCC) $(get_abi_CFLAGS)"
160	# This will hopefully be added to portage soon...	71	# This will hopefully be added to portage soon...
161	#	72	#
162	# If <ABI> is not specified, ${ABI} is used.	73	# If <ABI> is not specified, ${ABI} is used.
163	# If <ABI> is not specified and ${ABI} is not defined, ${DEFAULT_ABI} is used.	74	# If <ABI> is not specified and ${ABI} is not defined, ${DEFAULT_ABI} is used.
164	# If <ABI> is not specified and ${ABI} and ${DEFAULT_ABI} are not defined, we return an empty string.	75	# If <ABI> is not specified and ${ABI} and ${DEFAULT_ABI} are not defined, we return an empty string.
165	#
166	# Jeremy Huddleston <eradicator@gentoo.org>
167	get_abi_var() {	76	get_abi_var() {
168	local flag=${1}	77	local flag=$1
169	local abi	78	local abi=${2:-${ABI:-${DEFAULT_ABI:-default}}}
170	if [ $# -gt 1 ]; then
171	abi=${2}
172	elif [ -n "${ABI}" ]; then
173	abi=${ABI}
174	elif [ -n "${DEFAULT_ABI}" ]; then
175	abi=${DEFAULT_ABI}
176	else
177	return 1
178	fi
179
180	local var="${flag}_${abi}"	79	local var="${flag}_${abi}"
181	echo ${!var}	80	echo ${!var}
182	}	81	}
183		82
		83	# @FUNCTION: get_abi_CFLAGS
		84	# @USAGE: [ABI]
		85	# @DESCRIPTION:
		86	# Alias for 'get_abi_var CFLAGS'
184	get_abi_CFLAGS() { get_abi_var CFLAGS ${@}; }	87	get_abi_CFLAGS() { get_abi_var CFLAGS "$@"; }
185	get_abi_CDEFINE() { get_abi_var CDEFINE ${@}; }	88
		89	# @FUNCTION: get_abi_LDFLAGS
		90	# @USAGE: [ABI]
		91	# @DESCRIPTION:
		92	# Alias for 'get_abi_var LDFLAGS'
		93	get_abi_LDFLAGS() { get_abi_var LDFLAGS "$@"; }
		94
		95	# @FUNCTION: get_abi_CHOST
		96	# @USAGE: [ABI]
		97	# @DESCRIPTION:
		98	# Alias for 'get_abi_var CHOST'
		99	get_abi_CHOST() { get_abi_var CHOST "$@"; }
		100
		101	# @FUNCTION: get_abi_CTARGET
		102	# @USAGE: [ABI]
		103	# @DESCRIPTION:
		104	# Alias for 'get_abi_var CTARGET'
		105	get_abi_CTARGET() { get_abi_var CTARGET "$@"; }
		106
		107	# @FUNCTION: get_abi_FAKE_TARGETS
		108	# @USAGE: [ABI]
		109	# @DESCRIPTION:
		110	# Alias for 'get_abi_var FAKE_TARGETS'
		111	get_abi_FAKE_TARGETS() { get_abi_var FAKE_TARGETS "$@"; }
		112
		113	# @FUNCTION: get_abi_LIBDIR
		114	# @USAGE: [ABI]
		115	# @DESCRIPTION:
		116	# Alias for 'get_abi_var LIBDIR'
186	get_abi_LIBDIR() { get_abi_var LIBDIR ${@}; }	117	get_abi_LIBDIR() { get_abi_var LIBDIR "$@"; }
187		118
		119	# @FUNCTION: get_install_abis
		120	# @DESCRIPTION:
188	# Return a list of the ABIs we want to install for with	121	# Return a list of the ABIs we want to install for with
189	# the last one in the list being the default.	122	# the last one in the list being the default.
190	get_install_abis() {	123	get_install_abis() {
191	local order=""	124	local x order=""
192		125
193	if [ -z "${MULTILIB_ABIS}" ]; then	126	if [[ -z ${MULTILIB_ABIS} ]] ; then
194	echo "NOMULTILIB"	127	echo "default"
195	return 1	128	return 0
196	fi	129	fi
197		130
198	if hasq multilib-pkg-force ${RESTRICT} \|\|	131	if [[ ${EMULTILIB_PKG} == "true" ]] ; then
199	{ hasq multilib-pkg ${FEATURES} && hasq multilib-pkg ${RESTRICT}; }; then
200	for x in ${MULTILIB_ABIS}; do	132	for x in ${MULTILIB_ABIS} ; do
201	if [ "${x}" != "${DEFAULT_ABI}" ]; then	133	if [[ ${x} != "${DEFAULT_ABI}" ]] ; then
202	hasq ${x} ${ABI_DENY} \|\| ordera="${ordera} ${x}"	134	has ${x} ${ABI_DENY} \|\| order="${order} ${x}"
203	fi	135	fi
204	done	136	done
205	hasq ${DEFAULT_ABI} ${ABI_DENY} \|\| order="${ordera} ${DEFAULT_ABI}"	137	has ${DEFAULT_ABI} ${ABI_DENY} \|\| order="${order} ${DEFAULT_ABI}"
206		138
207	if [ -n "${ABI_ALLOW}" ]; then	139	if [[ -n ${ABI_ALLOW} ]] ; then
208	local ordera=""	140	local ordera=""
209	for x in ${order}; do	141	for x in ${order} ; do
210	if hasq ${x} ${ABI_ALLOW}; then	142	if has ${x} ${ABI_ALLOW} ; then
211	ordera="${ordera} ${x}"	143	ordera="${ordera} ${x}"
212	fi	144	fi
213	done	145	done
214	order="${ordera}"	146	order=${ordera}
215	fi	147	fi
216	else	148	else
217	order="${DEFAULT_ABI}"	149	order=${DEFAULT_ABI}
218	fi	150	fi
219		151
220	if [ -z "${order}" ]; then	152	if [[ -z ${order} ]] ; then
221	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."	153	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."
222	fi	154	fi
223		155
224	echo ${order}	156	echo ${order}
225	return 0	157	return 0
226	}	158	}
227		159
		160	# @FUNCTION: get_all_abis
		161	# @DESCRIPTION:
228	# Return a list of the ABIs supported by this profile.	162	# Return a list of the ABIs supported by this profile.
229	# the last one in the list being the default.	163	# the last one in the list being the default.
230	get_all_abis() {	164	get_all_abis() {
231	local order=""	165	local x order="" mvar dvar
232		166
233	if [ -z "${MULTILIB_ABIS}" ]; then	167	mvar="MULTILIB_ABIS"
234	echo "NOMULTILIB"	168	dvar="DEFAULT_ABI"
		169	if [[ -n $1 ]] ; then
		170	mvar="$1_${mvar}"
		171	dvar="$1_${dvar}"
		172	fi
		173
		174	if [[ -z ${!mvar} ]] ; then
		175	echo "default"
235	return 1	176	return 0
236	fi	177	fi
237		178
238	for x in ${MULTILIB_ABIS}; do	179	for x in ${!mvar}; do
239	if [ "${x}" != "${DEFAULT_ABI}" ]; then	180	if [[ ${x} != ${!dvar} ]] ; then
240	order="${order:+${order }}${x}"	181	order="${order:+${order} }${x}"
241	fi	182	fi
242	done	183	done
243	order="${order:+${order} }${DEFAULT_ABI}"	184	order="${order:+${order} }${!dvar}"
244		185
245	echo ${order}	186	echo ${order}
246	return 0	187	return 0
247	}	188	}
248		189
249	# get_all_libdirs()	190	# @FUNCTION: get_all_libdirs
		191	# @DESCRIPTION:
250	# Returns a list of all the libdirs used by this profile. This includes	192	# Returns a list of all the libdirs used by this profile. This includes
251	# those that might not be touched by the current ebuild.	193	# those that might not be touched by the current ebuild and always includes
		194	# "lib".
252	get_all_libdirs() {	195	get_all_libdirs() {
253	local libdirs="lib"	196	local libdirs abi
254	local abi
255	local dir
256		197
257	if has_multilib_profile; then
258	for abi in ${MULTILIB_ABIS}; do	198	for abi in ${MULTILIB_ABIS}; do
259	[ "$(get_abi_LIBDIR ${abi})" != "lib" ] && libdirs="${libdirs} $(get_abi_LIBDIR ${abi})"	199	libdirs+=" $(get_abi_LIBDIR ${abi})"
260	done	200	done
261	elif [ -n "${CONF_LIBDIR}" ]; then	201	[[ " ${libdirs} " != " lib " ]] && libdirs+=" lib"
262	for dir in ${CONF_LIBDIR} ${CONF_MULTILIBDIR:=lib32}; do
263	[ "${dir}" != "lib" ] && libdirs="${libdirs} ${dir}"
264	done
265	fi
266		202
267	echo "${libdirs}"	203	echo "${libdirs}"
268	}	204	}
269		205
		206	# @FUNCTION: is_final_abi
		207	# @DESCRIPTION:
270	# Return true if ${ABI} is the last ABI on our list (or if we're not	208	# Return true if ${ABI} is the last ABI on our list (or if we're not
271	# using the new multilib configuration. This can be used to determine	209	# using the new multilib configuration. This can be used to determine
272	# if we're in the last (or only) run through src_{unpack,compile,install}	210	# if we're in the last (or only) run through src_{unpack,compile,install}
273	is_final_abi() {	211	is_final_abi() {
274	! has_multilib_profile && return 0	212	has_multilib_profile \|\| return 0
275	local ALL_ABIS=$(get_install_abis)	213	set -- $(get_install_abis)
276	local LAST_ABI=${ALL_ABIS/* /}	214	local LAST_ABI=$#
277	[ "${LAST_ABI}" = "${ABI}" ]	215	[[ ${!LAST_ABI} == ${ABI} ]]
278	}	216	}
279		217
		218	# @FUNCTION: number_abis
		219	# @DESCRIPTION:
280	# echo the number of ABIs we will be installing for	220	# echo the number of ABIs we will be installing for
281	number_abis() {	221	number_abis() {
282	get_install_abis \| wc -w	222	set -- `get_install_abis`
		223	echo $#
283	}	224	}
284		225
285	# get_ml_incdir [<include dir> [<ABI>]]	226	# @FUNCTION: get_libname
286	# include dir defaults to /usr/include	227	# @USAGE: [version]
287	# ABI defaults to ${ABI} or ${DEFAULT_ABI}	228	# @DESCRIPTION:
288	get_ml_incdir() {	229	# Returns libname with proper suffix {.so,.dylib,.dll,etc} and optionally
289	local dir=/usr/include	230	# supplied version for the current platform identified by CHOST.
290
291	if [[ ${#} -gt 0 ]]; then
292	incdir=${1}
293	shift
294	fi
295
296	if [[ -z "${MULTILIB_ABIS}" ]]; then
297	echo ${incdir}
298	return 0
299	fi
300
301	local abi=${ABI:-${DEFAULT_ABI}}
302	if [[ ${#} -gt 0 ]]; then
303	abi=${1}
304	shift
305	fi
306
307	if [[ -d "${dir}/gentoo-multilib/${abi}" ]]; then
308	echo ${dir}/gentoo-multilib/${abi}
309	else
310	echo ${dir}
311	fi
312	}
313
314	# prep_ml_includes:
315	#
316	# Some includes (include/asm, glibc, etc) are ABI dependent. In this case,
317	# We can install them in different locations for each ABI and create a common
318	# header which includes the right one based on CDEFINE_${ABI}. If your
319	# package installs ABI-specific headers, just add 'prep_ml_includes' to the
320	# end of your src_install(). It takes a list of directories that include
321	# files are installed in (default is /usr/include if none are passed).
322	#	231	#
323	# Example:	232	# Example:
324	# src_install() {	233	# get_libname ${PV}
325	# ...	234	# Returns: .so.${PV} (ELF) \|\| .${PV}.dylib (MACH) \|\| ...
326	# prep_ml_includes /usr/qt/3/include	235	get_libname() {
327	# }
328
329	prep_ml_includes() {
330	if [ $(number_abis) -gt 1 ]; then
331	local dir
332	local dirs
333	local base	236	local libname
		237	local ver=$1
		238	case ${CHOST} in
		239	-cygwin\|mingw\|-mingw) libname="dll";;
		240	-darwin) libname="dylib";;
		241	-mint) libname="irrelevant";;
		242	hppa-hpux) libname="sl";;
		243	*) libname="so";;
		244	esac
334		245
335	if [ ${#} -eq 0 ]; then	246	if [[ -z $* ]] ; then
336	dirs="/usr/include"	247	echo ".${libname}"
337	else	248	else
338	dirs="${@}"	249	for ver in "$@" ; do
339	fi	250	case ${CHOST} in
340		251	-darwin) echo ".${ver}.${libname}";;
341	for dir in ${dirs}; do	252	-mint) echo ".${libname}";;
342	base=${T}/gentoo-multilib/${dir}/gentoo-multilib	253	*) echo ".${libname}.${ver}";;
343	mkdir -p ${base}	254	esac
344	[ -d ${base}/${ABI} ] && rm -rf ${base}/${ABI}
345	mv ${D}/${dir} ${base}/${ABI}
346	done	255	done
347
348	if is_final_abi; then
349	base=${T}/gentoo-multilib
350	pushd ${base}
351	find . \| tar -c -T - -f - \| tar -x --no-same-owner -f - -C ${D}
352	popd
353
354	for dir in ${dirs}; do
355	local args=${dir}
356	local abi
357	for abi in $(get_install_abis); do
358	args="${args} $(get_abi_CDEFINE ${abi}):${dir}/gentoo-multilib/${abi}"
359	done
360	create_ml_includes ${args}
361	done
362	fi	256	fi
363	fi
364	}	257	}
365		258
366	# If you need more control than prep_ml_includes can offer (like linux-headers	259	# @FUNCTION: get_modname
367	# for the asm-* dirs, then use create_ml_includes. The firs argument is the	260	# @USAGE:
368	# common dir. The remaining args are of the form <symbol>:<dir> where	261	# @DESCRIPTION:
369	# <symbol> is what is put in the #ifdef for choosing that dir.	262	# Returns modulename with proper suffix {.so,.bundle,etc} for the current
370	#	263	# platform identified by CHOST.
371	# Ideas for this code came from debian's sparc-linux headers package.
372	#	264	#
373	# Example:	265	# Example:
374	# create_ml_includes /usr/include/asm __sparc__:/usr/include/asm-sparc __sparc64__:/usr/include/asm-sparc64	266	# libfoo$(get_modname)
375	# create_ml_includes /usr/include/asm __i386__:/usr/include/asm-i386 __x86_64__:/usr/include/asm-x86_64	267	# Returns: libfoo.so (ELF) \|\| libfoo.bundle (MACH) \|\| ...
376	create_ml_includes() {	268	get_modname() {
377	local dest="${1}"	269	local modname
378	shift	270	local ver=$1
379	local mlinfo="${@}"	271	case ${CHOST} in
380	local basedirs=$(create_ml_includes-listdirs ${mlinfo})	272	-darwin) modname="bundle";;
		273	*) modname="so";;
		274	esac
381		275
382	create_ml_includes-makedestdirs ${dest} ${basedirs}	276	echo ".${modname}"
		277	}
383		278
384	local file	279	# This is for the toolchain to setup profile variables when pulling in
385	for file in $(create_ml_includes-allfiles ${basedirs}); do	280	# a crosscompiler (and thus they aren't set in the profile)
386	local name="$(echo $file \| tr a-z A-Z \| sed 's:[^A-Z]:_:g')"	281	multilib_env() {
387	{	282	local CTARGET=${1:-${CTARGET}}
388	echo "/* Common header file autogenerated by create_ml_includes in multilib.eclass */"
389	#echo "#ifndef __CREATE_ML_INCLUDES_STUB_${name}__"
390	#echo "#define __CREATE_ML_INCLUDES_STUB_${name}__"
391	#echo ""
392		283
393	local dir	284	case ${CTARGET} in
394	for dir in ${basedirs}; do	285	x86_64*)
395	if [ -f "${D}/${dir}/${file}" ]; then	286	export CFLAGS_x86=${CFLAGS_x86--m32}
396	echo "#ifdef $(create_ml_includes-sym_for_dir ${dir} ${mlinfo})"	287	export CHOST_x86=${CTARGET/x86_64/i686}
397	echo "#include \"$(create_ml_includes-relative_between ${dest}/$(dirname ${file}) ${dir}/${file})\""	288	CHOST_x86=${CHOST_x86/%-gnux32/-gnu}
398	echo "#endif /* $(create_ml_includes-sym_for_dir ${dir} ${mlinfo}) */"	289	export CTARGET_x86=${CHOST_x86}
399	echo ""	290	if [[ ${SYMLINK_LIB} == "yes" ]] ; then
		291	export LIBDIR_x86="lib32"
		292	else
		293	export LIBDIR_x86="lib"
400	fi	294	fi
401	done
402		295
403	#echo "#endif /* __CREATE_ML_INCLUDES_STUB_${name}__ */"	296	export CFLAGS_amd64=${CFLAGS_amd64--m64}
404	} > ${D}/${dest}/${file}	297	export CHOST_amd64=${CTARGET/%-gnux32/-gnu}
405	done	298	export CTARGET_amd64=${CHOST_amd64}
406	}	299	export LIBDIR_amd64="lib64"
407		300
408	# Helper function for create_ml_includes	301	export CFLAGS_x32=${CFLAGS_x32--mx32}
409	create_ml_includes-relative_between() {	302	export CHOST_x32=${CTARGET/%-gnu/-gnux32}
410	local src="$(create_ml_includes-tidy_path ${1})"	303	export CTARGET_x32=${CHOST_x32}
411	local dst="$(create_ml_includes-tidy_path ${2})"	304	export LIBDIR_x32="libx32"
412		305
413	src=(${src//\// })	306	case ${CTARGET} in
414	dst=(${dst//\// })	307	*-gnux32)
		308	: ${MULTILIB_ABIS=x32 amd64 x86}
		309	: ${DEFAULT_ABI=x32}
		310	;;
		311	*)
		312	: ${MULTILIB_ABIS=amd64 x86}
		313	: ${DEFAULT_ABI=amd64}
		314	;;
		315	esac
		316	;;
		317	mips64*)
		318	export CFLAGS_o32=${CFLAGS_o32--mabi=32}
		319	export CHOST_o32=${CTARGET/mips64/mips}
		320	export CTARGET_o32=${CHOST_o32}
		321	export LIBDIR_o32="lib"
415		322
416	local i	323	export CFLAGS_n32=${CFLAGS_n32--mabi=n32}
417	for ((i=0; i<${#src[*]}; i++)); do	324	export CHOST_n32=${CTARGET}
418	[ "${dst[i]}" != "${src[i]}" ] && break	325	export CTARGET_n32=${CHOST_n32}
419	done	326	export LIBDIR_n32="lib32"
420		327
421	local common=$i	328	export CFLAGS_n64=${CFLAGS_n64--mabi=64}
		329	export CHOST_n64=${CTARGET}
		330	export CTARGET_n64=${CHOST_n64}
		331	export LIBDIR_n64="lib64"
422		332
423	for ((i=${#src[*]}; i>common; i--)); do	333	: ${MULTILIB_ABIS=n64 n32 o32}
424	echo -n ../	334	: ${DEFAULT_ABI=n32}
425	done	335	;;
		336	powerpc64*)
		337	export CFLAGS_ppc=${CFLAGS_ppc--m32}
		338	export CHOST_ppc=${CTARGET/powerpc64/powerpc}
		339	export CTARGET_ppc=${CHOST_ppc}
		340	export LIBDIR_ppc="lib"
426		341
427	for ((i=common; i<${#dst[*]}-1; i++)); do	342	export CFLAGS_ppc64=${CFLAGS_ppc64--m64}
428	echo -n ${dst[i]}/	343	export CHOST_ppc64=${CTARGET}
429	done	344	export CTARGET_ppc64=${CHOST_ppc64}
		345	export LIBDIR_ppc64="lib64"
430		346
431	echo -n ${dst[i]}	347	: ${MULTILIB_ABIS=ppc64 ppc}
432	}	348	: ${DEFAULT_ABI=ppc64}
		349	;;
		350	s390x*)
		351	export CFLAGS_s390=${CFLAGS_s390--m31} # the 31 is not a typo
		352	export CHOST_s390=${CTARGET/s390x/s390}
		353	export CTARGET_s390=${CHOST_s390}
		354	export LIBDIR_s390="lib"
433		355
434	# Helper function for create_ml_includes	356	export CFLAGS_s390x=${CFLAGS_s390x--m64}
435	create_ml_includes-tidy_path() {	357	export CHOST_s390x=${CTARGET}
436	local removed="${1}"	358	export CTARGET_s390x=${CHOST_s390x}
		359	export LIBDIR_s390x="lib64"
437		360
438	if [ -n "${removed}" ]; then	361	: ${MULTILIB_ABIS=s390x s390}
439	# Remove multiple slashes	362	: ${DEFAULT_ABI=s390x}
440	while [ "${removed}" != "${removed/\/\//\/}" ]; do	363	;;
441	removed=${removed/\/\//\/}	364	sparc64*)
		365	export CFLAGS_sparc32=${CFLAGS_sparc32--m32}
		366	export CHOST_sparc32=${CTARGET/sparc64/sparc}
		367	export CTARGET_sparc32=${CHOST_sparc32}
		368	export LIBDIR_sparc32="lib"
		369
		370	export CFLAGS_sparc64=${CFLAGS_sparc64--m64}
		371	export CHOST_sparc64=${CTARGET}
		372	export CTARGET_sparc64=${CHOST_sparc64}
		373	export LIBDIR_sparc64="lib64"
		374
		375	: ${MULTILIB_ABIS=sparc64 sparc32}
		376	: ${DEFAULT_ABI=sparc64}
		377	;;
		378	*)
		379	: ${MULTILIB_ABIS=default}
		380	: ${DEFAULT_ABI=default}
		381	;;
		382	esac
		383
		384	export MULTILIB_ABIS DEFAULT_ABI
		385	}
		386
		387	# @FUNCTION: multilib_toolchain_setup
		388	# @DESCRIPTION:
		389	# Hide multilib details here for packages which are forced to be compiled for a
		390	# specific ABI when run on another ABI (like x86-specific packages on amd64)
		391	multilib_toolchain_setup() {
		392	local v vv
		393
		394	export ABI=$1
		395
		396	# First restore any saved state we have laying around.
		397	if [[ ${__DEFAULT_ABI_SAVED} == "true" ]] ; then
		398	for v in CHOST CBUILD AS CC CXX LD PKG_CONFIG_{LIBDIR,PATH} ; do
		399	vv="__abi_saved_${v}"
		400	export ${v}="${!vv}"
		401	unset ${vv}
442	done	402	done
		403	unset __DEFAULT_ABI_SAVED
		404	fi
443		405
444	# Remove . directories	406	# We want to avoid the behind-the-back magic of gcc-config as it
445	while [ "${removed}" != "${removed//\/.\//\/}" ]; do	407	# screws up ccache and distcc. See #196243 for more info.
446	removed=${removed//\/.\//\/}	408	if [[ ${ABI} != ${DEFAULT_ABI} ]] ; then
		409	# Back that multilib-ass up so we can restore it later
		410	for v in CHOST CBUILD AS CC CXX LD PKG_CONFIG_{LIBDIR,PATH} ; do
		411	export __abi_saved_${v}="${!v}"
447	done	412	done
448	[ "${removed##/}" = "." ] && removed=${removed%/}	413	export __DEFAULT_ABI_SAVED="true"
449		414
450	# Removed .. directories	415	# Set the CHOST native first so that we pick up the native
451	while [ "${removed}" != "${removed//\/..\/}" ]; do	416	# toolchain and not a cross-compiler by accident #202811.
452	local p1="${removed%%\/..\/*}"	417	export CHOST=$(get_abi_CHOST ${DEFAULT_ABI})
453	local p2="${removed#*\/..\/}"	418	export CC="$(tc-getCC) $(get_abi_CFLAGS)"
454		419	export CXX="$(tc-getCXX) $(get_abi_CFLAGS)"
455	removed="${p1%\/*}/${p2}"	420	export LD="$(tc-getLD) $(get_abi_LDFLAGS)"
456	done	421	export CHOST=$(get_abi_CHOST $1)
457		422	export CBUILD=$(get_abi_CHOST $1)
458	# Remove trailing ..	423	export PKG_CONFIG_LIBDIR=${EPREFIX}/usr/$(get_libdir)/pkgconfig
459	[ "${removed##/}" = ".." ] && removed=${removed%//*}	424	export PKG_CONFIG_PATH=${EPREFIX}/usr/share/pkgconfig
460
461	# Remove trailing /
462	[ "${removed##/}" = "" ] && removed=${removed%/}
463
464	echo ${removed}
465	fi
466	}
467
468	# Helper function for create_ml_includes
469	create_ml_includes-listdirs() {
470	local dirs
471	local data
472	for data in ${@}; do
473	dirs="${dirs} ${data/*:/}"
474	done
475	echo ${dirs:1}
476	}
477
478	# Helper function for create_ml_includes
479	create_ml_includes-makedestdirs() {
480	local dest=${1}
481	shift
482	local basedirs=${@}
483
484	dodir ${dest}
485
486	local basedir
487	for basedir in ${basedirs}; do
488	local dir
489	for dir in $(find ${D}/${basedir} -type d); do
490	dodir ${dest}/${dir/${D}\/${basedir}/}
491	done
492	done
493	}
494
495	# Helper function for create_ml_includes
496	create_ml_includes-allfiles() {
497	local basedirs=${@}
498
499	local basedir
500	for basedir in ${basedirs}; do
501	local file
502	for file in $(find ${D}/${basedir} -type f); do
503	echo ${file/${D}\/${basedir}\//}
504	done
505	done \| sort \| uniq
506	}
507
508	# Helper function for create_ml_includes
509	create_ml_includes-sym_for_dir() {
510	local dir="${1}"
511	shift
512	local data
513	for data in ${@}; do
514	if [ "${dir}" = "${data/*:/}" ]; then
515	echo ${data/:*/}
516	return 0
517	fi	425	fi
518	done
519	echo "Shouldn't be here -- create_ml_includes-sym_for_dir ${1} ${@}"
520	# exit because we'll likely be called from a subshell
521	exit 1
522	}	426	}
		427
		428	fi

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