summaryrefslogtreecommitdiff
path: root/eclass/multilib.eclass
blob: 350b6f949d12ea33019116d2d29abb547fa46e1c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
# Copyright 1999-2015 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2

# @ECLASS: multilib.eclass
# @MAINTAINER:
# amd64@gentoo.org
# toolchain@gentoo.org
# @BLURB: This eclass is for all functions pertaining to handling multilib configurations.
# @DESCRIPTION:
# This eclass is for all functions pertaining to handling multilib configurations.

if [[ -z ${_MULTILIB_ECLASS} ]]; then
_MULTILIB_ECLASS=1

inherit toolchain-funcs

# Defaults:
export MULTILIB_ABIS=${MULTILIB_ABIS:-"default"}
export DEFAULT_ABI=${DEFAULT_ABI:-"default"}
export CFLAGS_default
export LDFLAGS_default
export CHOST_default=${CHOST_default:-${CHOST}}
export CTARGET_default=${CTARGET_default:-${CTARGET:-${CHOST_default}}}
export LIBDIR_default=${CONF_LIBDIR:-"lib"}
export KERNEL_ABI=${KERNEL_ABI:-${DEFAULT_ABI}}

# @FUNCTION: has_multilib_profile
# @DESCRIPTION:
# Return true if the current profile is a multilib profile and lists more than
# one abi in ${MULTILIB_ABIS}.  When has_multilib_profile returns true, that
# profile should enable the 'multilib' use flag. This is so you can DEPEND on
# a package only for multilib or not multilib.
has_multilib_profile() {
	[ -n "${MULTILIB_ABIS}" -a "${MULTILIB_ABIS}" != "${MULTILIB_ABIS/ /}" ]
}

# @FUNCTION: get_libdir
# @RETURN: the libdir for the selected ABI
# @DESCRIPTION:
# This function simply returns the desired lib directory. With portage
# 2.0.51, we now have support for installing libraries to lib32/lib64
# to accomidate the needs of multilib systems. It's no longer a good idea
# to assume all libraries will end up in lib. Replace any (sane) instances
# where lib is named directly with $(get_libdir) if possible.
#
# Jeremy Huddleston <eradicator@gentoo.org> (23 Dec 2004):
#   Added support for ${ABI} and ${DEFAULT_ABI}.  If they're both not set,
#   fall back on old behavior.  Any profile that has these set should also
#   depend on a newer version of portage (not yet released) which uses these
#   over CONF_LIBDIR in econf, dolib, etc...
if has "${EAPI:-0}" 0 1 2 3 4 5; then
	get_libdir() {
		local CONF_LIBDIR
		if [ -n  "${CONF_LIBDIR_OVERRIDE}" ] ; then
			# if there is an override, we want to use that... always.
			echo ${CONF_LIBDIR_OVERRIDE}
		else
			get_abi_LIBDIR
		fi
	}
fi

# @FUNCTION: get_abi_var
# @USAGE: <VAR> [ABI]
# @RETURN: returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
# @INTERNAL
# @DESCRIPTION:
# ex:
# CFLAGS=$(get_abi_var CFLAGS sparc32) # CFLAGS=-m32
#
# Note that the prefered method is to set CC="$(tc-getCC) $(get_abi_CFLAGS)"
# This will hopefully be added to portage soon...
#
# If <ABI> is not specified, ${ABI} is used.
# If <ABI> is not specified and ${ABI} is not defined, ${DEFAULT_ABI} is used.
# If <ABI> is not specified and ${ABI} and ${DEFAULT_ABI} are not defined, we return an empty string.
get_abi_var() {
	local flag=$1
	local abi=${2:-${ABI:-${DEFAULT_ABI:-default}}}
	local var="${flag}_${abi}"
	echo ${!var}
}

# @FUNCTION: get_abi_CFLAGS
# @USAGE: [ABI]
# @DESCRIPTION:
# Alias for 'get_abi_var CFLAGS'
get_abi_CFLAGS() { get_abi_var CFLAGS "$@"; }

# @FUNCTION: get_abi_LDFLAGS
# @USAGE: [ABI]
# @DESCRIPTION:
# Alias for 'get_abi_var LDFLAGS'
get_abi_LDFLAGS() { get_abi_var LDFLAGS "$@"; }

# @FUNCTION: get_abi_CHOST
# @USAGE: [ABI]
# @DESCRIPTION:
# Alias for 'get_abi_var CHOST'
get_abi_CHOST() { get_abi_var CHOST "$@"; }

# @FUNCTION: get_abi_CTARGET
# @USAGE: [ABI]
# @DESCRIPTION:
# Alias for 'get_abi_var CTARGET'
get_abi_CTARGET() { get_abi_var CTARGET "$@"; }

# @FUNCTION: get_abi_FAKE_TARGETS
# @USAGE: [ABI]
# @DESCRIPTION:
# Alias for 'get_abi_var FAKE_TARGETS'
get_abi_FAKE_TARGETS() { get_abi_var FAKE_TARGETS "$@"; }

# @FUNCTION: get_abi_LIBDIR
# @USAGE: [ABI]
# @DESCRIPTION:
# Alias for 'get_abi_var LIBDIR'
get_abi_LIBDIR() { get_abi_var LIBDIR "$@"; }

# @FUNCTION: get_install_abis
# @DESCRIPTION:
# Return a list of the ABIs we want to install for with
# the last one in the list being the default.
get_install_abis() {
	local x order=""

	if [[ -z ${MULTILIB_ABIS} ]] ; then
		echo "default"
		return 0
	fi

	if [[ ${EMULTILIB_PKG} == "true" ]] ; then
		for x in ${MULTILIB_ABIS} ; do
			if [[ ${x} != "${DEFAULT_ABI}" ]] ; then
				has ${x} ${ABI_DENY} || order="${order} ${x}"
			fi
		done
		has ${DEFAULT_ABI} ${ABI_DENY} || order="${order} ${DEFAULT_ABI}"

		if [[ -n ${ABI_ALLOW} ]] ; then
			local ordera=""
			for x in ${order} ; do
				if has ${x} ${ABI_ALLOW} ; then
					ordera="${ordera} ${x}"
				fi
			done
			order=${ordera}
		fi
	else
		order=${DEFAULT_ABI}
	fi

	if [[ -z ${order} ]] ; then
		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."
	fi

	echo ${order}
	return 0
}

# @FUNCTION: get_all_abis
# @DESCRIPTION:
# Return a list of the ABIs supported by this profile.
# the last one in the list being the default.
get_all_abis() {
	local x order="" mvar dvar

	mvar="MULTILIB_ABIS"
	dvar="DEFAULT_ABI"
	if [[ -n $1 ]] ; then
		mvar="$1_${mvar}"
		dvar="$1_${dvar}"
	fi

	if [[ -z ${!mvar} ]] ; then
		echo "default"
		return 0
	fi

	for x in ${!mvar}; do
		if [[ ${x} != ${!dvar} ]] ; then
			order="${order:+${order} }${x}"
		fi
	done
	order="${order:+${order} }${!dvar}"

	echo ${order}
	return 0
}

# @FUNCTION: get_all_libdirs
# @DESCRIPTION:
# Returns a list of all the libdirs used by this profile.  This includes
# those that might not be touched by the current ebuild and always includes
# "lib".
get_all_libdirs() {
	local libdirs abi

	for abi in ${MULTILIB_ABIS}; do
		libdirs+=" $(get_abi_LIBDIR ${abi})"
	done
	[[ " ${libdirs} " != *" lib "* ]] && libdirs+=" lib"

	echo "${libdirs}"
}

# @FUNCTION: is_final_abi
# @DESCRIPTION:
# Return true if ${ABI} is the last ABI on our list (or if we're not
# using the new multilib configuration.  This can be used to determine
# if we're in the last (or only) run through src_{unpack,compile,install}
is_final_abi() {
	has_multilib_profile || return 0
	set -- $(get_install_abis)
	local LAST_ABI=$#
	[[ ${!LAST_ABI} == ${ABI} ]]
}

# @FUNCTION: number_abis
# @DESCRIPTION:
# echo the number of ABIs we will be installing for
number_abis() {
	set -- `get_install_abis`
	echo $#
}

# @FUNCTION: get_exeext
# @DESCRIPTION:
# Returns standard executable program suffix (null, .exe, etc.)
# for the current platform identified by CHOST.
#
# Example:
#     get_exeext
#     Returns: null string (almost everywhere) || .exe (mingw*) || ...
get_exeext() {
	case ${CHOST} in
		*-cygwin*|mingw*|*-mingw*)  echo ".exe";;
	esac
}

# @FUNCTION: get_libname
# @USAGE: [version]
# @DESCRIPTION:
# Returns libname with proper suffix {.so,.dylib,.dll,etc} and optionally
# supplied version for the current platform identified by CHOST.
#
# Example:
#     get_libname ${PV}
#     Returns: .so.${PV} (ELF) || .${PV}.dylib (MACH) || ...
get_libname() {
	local libname
	local ver=$1
	case ${CHOST} in
		*-cygwin*)       libname="dll.a";; # import lib
		mingw*|*-mingw*) libname="dll";;
		*-darwin*)       libname="dylib";;
		*-mint*)         libname="irrelevant";;
		hppa*-hpux*)     libname="sl";;
		*)               libname="so";;
	esac

	if [[ -z $* ]] ; then
		echo ".${libname}"
	else
		for ver in "$@" ; do
			case ${CHOST} in
				*-cygwin*) echo ".${ver}.${libname}";;
				*-darwin*) echo ".${ver}.${libname}";;
				*-mint*)   echo ".${libname}";;
				*)         echo ".${libname}.${ver}";;
			esac
		done
	fi
}

# @FUNCTION: get_modname
# @USAGE:
# @DESCRIPTION:
# Returns modulename with proper suffix {.so,.bundle,etc} for the current
# platform identified by CHOST.
#
# Example:
#     libfoo$(get_modname)
#     Returns: libfoo.so (ELF) || libfoo.bundle (MACH) || ...
get_modname() {
	local modname
	local ver=$1
	case ${CHOST} in
		*-darwin*)                modname="bundle";;
		*)                        modname="so";;
	esac

	echo ".${modname}"
}

# This is for the toolchain to setup profile variables when pulling in
# a crosscompiler (and thus they aren't set in the profile)
multilib_env() {
	local CTARGET=${1:-${CTARGET}}
	local cpu=${CTARGET%%*-}

	case ${cpu} in
		aarch64*)
			# Not possible to do multilib with aarch64 and a single toolchain.
			export CFLAGS_arm=${CFLAGS_arm-}
			case ${cpu} in
			aarch64*be) export CHOST_arm="armv8b-${CTARGET#*-}";;
			*)          export CHOST_arm="armv8l-${CTARGET#*-}";;
			esac
			CHOST_arm=${CHOST_arm/%-gnu/-gnueabi}
			export CTARGET_arm=${CHOST_arm}
			export LIBDIR_arm="lib"

			export CFLAGS_arm64=${CFLAGS_arm64-}
			export CHOST_arm64=${CTARGET}
			export CTARGET_arm64=${CHOST_arm64}
			export LIBDIR_arm64="lib64"

			: ${MULTILIB_ABIS=arm64}
			: ${DEFAULT_ABI=arm64}
		;;
		x86_64*)
			export CFLAGS_x86=${CFLAGS_x86--m32}
			export CHOST_x86=${CTARGET/x86_64/i686}
			CHOST_x86=${CHOST_x86/%-gnux32/-gnu}
			export CTARGET_x86=${CHOST_x86}
			if [[ ${SYMLINK_LIB} == "yes" ]] ; then
				export LIBDIR_x86="lib32"
			else
				export LIBDIR_x86="lib"
			fi

			export CFLAGS_amd64=${CFLAGS_amd64--m64}
			export CHOST_amd64=${CTARGET/%-gnux32/-gnu}
			export CTARGET_amd64=${CHOST_amd64}
			export LIBDIR_amd64="lib64"

			export CFLAGS_x32=${CFLAGS_x32--mx32}
			export CHOST_x32=${CTARGET/%-gnu/-gnux32}
			export CTARGET_x32=${CHOST_x32}
			export LIBDIR_x32="libx32"

			case ${CTARGET} in
			*-gnux32)
				: ${MULTILIB_ABIS=x32 amd64 x86}
				: ${DEFAULT_ABI=x32}
				;;
			*)
				: ${MULTILIB_ABIS=amd64 x86}
				: ${DEFAULT_ABI=amd64}
				;;
			esac
		;;
		mips64*)
			export CFLAGS_o32=${CFLAGS_o32--mabi=32}
			export CHOST_o32=${CTARGET/mips64/mips}
			export CTARGET_o32=${CHOST_o32}
			export LIBDIR_o32="lib"

			export CFLAGS_n32=${CFLAGS_n32--mabi=n32}
			export CHOST_n32=${CTARGET}
			export CTARGET_n32=${CHOST_n32}
			export LIBDIR_n32="lib32"

			export CFLAGS_n64=${CFLAGS_n64--mabi=64}
			export CHOST_n64=${CTARGET}
			export CTARGET_n64=${CHOST_n64}
			export LIBDIR_n64="lib64"

			: ${MULTILIB_ABIS=n64 n32 o32}
			: ${DEFAULT_ABI=n32}
		;;
		powerpc64*)
			export CFLAGS_ppc=${CFLAGS_ppc--m32}
			export CHOST_ppc=${CTARGET/powerpc64/powerpc}
			export CTARGET_ppc=${CHOST_ppc}
			export LIBDIR_ppc="lib"

			export CFLAGS_ppc64=${CFLAGS_ppc64--m64}
			export CHOST_ppc64=${CTARGET}
			export CTARGET_ppc64=${CHOST_ppc64}
			export LIBDIR_ppc64="lib64"

			: ${MULTILIB_ABIS=ppc64 ppc}
			: ${DEFAULT_ABI=ppc64}
		;;
		s390x*)
			export CFLAGS_s390=${CFLAGS_s390--m31} # the 31 is not a typo
			export CHOST_s390=${CTARGET/s390x/s390}
			export CTARGET_s390=${CHOST_s390}
			export LIBDIR_s390="lib"

			export CFLAGS_s390x=${CFLAGS_s390x--m64}
			export CHOST_s390x=${CTARGET}
			export CTARGET_s390x=${CHOST_s390x}
			export LIBDIR_s390x="lib64"

			: ${MULTILIB_ABIS=s390x s390}
			: ${DEFAULT_ABI=s390x}
		;;
		sparc64*)
			export CFLAGS_sparc32=${CFLAGS_sparc32--m32}
			export CHOST_sparc32=${CTARGET/sparc64/sparc}
			export CTARGET_sparc32=${CHOST_sparc32}
			export LIBDIR_sparc32="lib"

			export CFLAGS_sparc64=${CFLAGS_sparc64--m64}
			export CHOST_sparc64=${CTARGET}
			export CTARGET_sparc64=${CHOST_sparc64}
			export LIBDIR_sparc64="lib64"

			: ${MULTILIB_ABIS=sparc64 sparc32}
			: ${DEFAULT_ABI=sparc64}
		;;
		*)
			: ${MULTILIB_ABIS=default}
			: ${DEFAULT_ABI=default}
		;;
	esac

	export MULTILIB_ABIS DEFAULT_ABI
}

# @FUNCTION: multilib_toolchain_setup
# @DESCRIPTION:
# Hide multilib details here for packages which are forced to be compiled for a
# specific ABI when run on another ABI (like x86-specific packages on amd64)
multilib_toolchain_setup() {
	local v vv

	export ABI=$1

	# First restore any saved state we have laying around.
	if [[ ${_DEFAULT_ABI_SAVED} == "true" ]] ; then
		for v in CHOST CBUILD AS CC CXX F77 FC LD PKG_CONFIG_{LIBDIR,PATH} ; do
			vv="_abi_saved_${v}"
			[[ ${!vv+set} == "set" ]] && export ${v}="${!vv}" || unset ${v}
			unset ${vv}
		done
		unset _DEFAULT_ABI_SAVED
	fi

	# We want to avoid the behind-the-back magic of gcc-config as it
	# screws up ccache and distcc.  See #196243 for more info.
	if [[ ${ABI} != ${DEFAULT_ABI} ]] ; then
		# Back that multilib-ass up so we can restore it later
		for v in CHOST CBUILD AS CC CXX F77 FC LD PKG_CONFIG_{LIBDIR,PATH} ; do
			vv="_abi_saved_${v}"
			[[ ${!v+set} == "set" ]] && export ${vv}="${!v}" || unset ${vv}
		done
		export _DEFAULT_ABI_SAVED="true"

		# Set CBUILD only if not cross-compiling.
		if [[ ${CBUILD} == "${CHOST}" ]]; then
			export CBUILD=$(get_abi_CHOST $1)
		fi

		# Set the CHOST native first so that we pick up the native
		# toolchain and not a cross-compiler by accident #202811.
		export CHOST=$(get_abi_CHOST ${DEFAULT_ABI})
		export CC="$(tc-getCC) $(get_abi_CFLAGS)"
		export CXX="$(tc-getCXX) $(get_abi_CFLAGS)"
		export F77="$(tc-getF77) $(get_abi_CFLAGS)"
		export FC="$(tc-getFC) $(get_abi_CFLAGS)"
		export LD="$(tc-getLD) $(get_abi_LDFLAGS)"
		export CHOST=$(get_abi_CHOST $1)
		export PKG_CONFIG_LIBDIR=${EPREFIX}/usr/$(get_libdir)/pkgconfig
		export PKG_CONFIG_PATH=${EPREFIX}/usr/share/pkgconfig
	fi
}

fi