gentoo-x86/eclass/multilib.eclass

# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/multilib.eclass,v 1.90 2011/03/18 22:03:25 vapier Exp $

# @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.

___ECLASS_RECUR_MULTILIB="yes"
[[ -z ${___ECLASS_RECUR_TOOLCHAIN_FUNCS} ]] && 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 ${DEFAULT_ABI}.  If they're both not set,
#   fall back on old behavior.  Any profile that has these set should also
#   depend on a newer version of portage (not yet released) which uses these
#   over CONF_LIBDIR in econf, dolib, etc...
get_libdir() {
        local CONF_LIBDIR
        if [ -n  "${CONF_LIBDIR_OVERRIDE}" ] ; then
                # if there is an override, we want to use that... always.
                echo ${CONF_LIBDIR_OVERRIDE}
        else
                get_abi_LIBDIR
        fi
}

# @FUNCTION: get_multilibdir
# @RETURN: Returns the multilibdir
get_multilibdir() {
        if has_multilib_profile; then
                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"
                exit 1
        fi
        echo ${CONF_MULTILIBDIR:=lib32}
}

# @FUNCTION: get_libdir_override
# @DESCRIPTION:
# Sometimes you need to override the value returned by get_libdir. A good
# example of this is xorg-x11, where lib32 isnt a supported configuration,
# and where lib64 -must- be used on amd64 (for applications that need lib
# to be 32bit, such as adobe acrobat). Note that this override also bypasses
# portage version sanity checking.
# get_libdir_override expects one argument, the result get_libdir should
# return:
#
#   get_libdir_override lib64
get_libdir_override() {
        if has_multilib_profile; then
                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"
                exit 1
        fi
        CONF_LIBDIR="$1"
        CONF_LIBDIR_OVERRIDE="$1"
        LIBDIR_default="$1"
}

# @FUNCTION: get_abi_var
# @USAGE: <VAR> [ABI]
# @RETURN: returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
# @DESCRIPTION:
# ex:
# CFLAGS=$(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
        if [ $# -gt 1 ]; then
                abi=${2}
        elif [ -n "${ABI}" ]; then
                abi=${ABI}
        elif [ -n "${DEFAULT_ABI}" ]; then
                abi=${DEFAULT_ABI}
        else
                abi="default"
        fi

        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_ASFLAGS
# @USAGE: [ABI]
# @DESCRIPTION:
# Alias for 'get_abi_var ASFLAGS'
get_abi_ASFLAGS() { get_abi_var ASFLAGS "$@"; }

# @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 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 order=""

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

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

        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
        local abi
        local dir

        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_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|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 ${CHOST} in
                                *-darwin*) echo ".${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}}

        case ${CTARGET} in
                x86_64*)
                        export CFLAGS_x86=${CFLAGS_x86--m32}
                        export CHOST_x86=${CTARGET/x86_64/i686}
                        export CTARGET_x86=${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}
                        export CTARGET_amd64=${CHOST_amd64}
                        export LIBDIR_amd64="lib64"

                        export CFLAGS_x32=${CFLAGS_x32--mx32}
                        export CHOST_x32=${CTARGET}
                        export CTARGET_x32=${CHOST_x32}
                        export LIBDIR_x32="libx32"

                        : ${MULTILIB_ABIS=amd64 x86}
                        : ${DEFAULT_ABI=amd64}
                ;;
                mips64*)
                        export CFLAGS_o32=${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}
                        : ${DEFAULT_ABI=s390x}
                ;;
                sparc*)
                        export CFLAGS_sparc32=${CFLAGS_sparc32}
                        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 [[ ${__DEFAULT_ABI_SAVED} == "true" ]] ; then
                for v in CHOST CBUILD AS CC CXX LD ; do
                        vv="__abi_saved_${v}"
                        export ${v}="${!vv}"
                        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} != ${DEFAULT_ABI} ]] ; then
                # Back that multilib-ass up so we can restore it later
                for v in CHOST CBUILD AS CC CXX LD ; do
                        export __abi_saved_${v}="${!v}"
                done
                export __DEFAULT_ABI_SAVED="true"

                # 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 ${DEFAULT_ABI})
                export AS="$(tc-getAS) $(get_abi_ASFLAGS)"
                export CC="$(tc-getCC) $(get_abi_CFLAGS)"
                export CXX="$(tc-getCXX) $(get_abi_CFLAGS)"
                export LD="$(tc-getLD) $(get_abi_LDFLAGS)"
                export CHOST=$(get_abi_CHOST $1)
                export CBUILD=$(get_abi_CHOST $1)
        fi
}
1	# Copyright 1999-2011 Gentoo Foundation
2	# Distributed under the terms of the GNU General Public License v2
3	# $Header: /var/cvsroot/gentoo-x86/eclass/multilib.eclass,v 1.90 2011/03/18 22:03:25 vapier 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=${CONF_LIBDIR:-"lib"}
24	export KERNEL_ABI=${KERNEL_ABI:-${DEFAULT_ABI}}
25
26	# @FUNCTION: has_multilib_profile
27	# @DESCRIPTION:
28	# Return true if the current profile is a multilib profile and lists more than
29	# one abi in ${MULTILIB_ABIS}. When has_multilib_profile returns true, that
30	# profile should enable the 'multilib' use flag. This is so you can DEPEND on
31	# a package only for multilib or not multilib.
32	has_multilib_profile() {
33	[ -n "${MULTILIB_ABIS}" -a "${MULTILIB_ABIS}" != "${MULTILIB_ABIS/ /}" ]
34	}
35
36	# @FUNCTION: get_libdir
37	# @RETURN: the libdir for the selected ABI
38	# @DESCRIPTION:
39	# This function simply returns the desired lib directory. With portage
40	# 2.0.51, we now have support for installing libraries to lib32/lib64
41	# to accomidate the needs of multilib systems. It's no longer a good idea
42	# to assume all libraries will end up in lib. Replace any (sane) instances
43	# where lib is named directly with $(get_libdir) if possible.
44	#
45	# Jeremy Huddleston <eradicator@gentoo.org> (23 Dec 2004):
46	# Added support for ${ABI} and ${DEFAULT_ABI}. If they're both not set,
47	# fall back on old behavior. Any profile that has these set should also
48	# depend on a newer version of portage (not yet released) which uses these
49	# over CONF_LIBDIR in econf, dolib, etc...
50	get_libdir() {
51	local CONF_LIBDIR
52	if [ -n "${CONF_LIBDIR_OVERRIDE}" ] ; then
53	# if there is an override, we want to use that... always.
54	echo ${CONF_LIBDIR_OVERRIDE}
55	else
56	get_abi_LIBDIR
57	fi
58	}
59
60	# @FUNCTION: get_multilibdir
61	# @RETURN: Returns the multilibdir
62	get_multilibdir() {
63	if has_multilib_profile; then
64	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"
65	exit 1
66	fi
67	echo ${CONF_MULTILIBDIR:=lib32}
68	}
69
70	# @FUNCTION: get_libdir_override
71	# @DESCRIPTION:
72	# Sometimes you need to override the value returned by get_libdir. A good
73	# example of this is xorg-x11, where lib32 isnt a supported configuration,
74	# and where lib64 -must- be used on amd64 (for applications that need lib
75	# to be 32bit, such as adobe acrobat). Note that this override also bypasses
76	# portage version sanity checking.
77	# get_libdir_override expects one argument, the result get_libdir should
78	# return:
79	#
80	# get_libdir_override lib64
81	get_libdir_override() {
82	if has_multilib_profile; then
83	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"
84	exit 1
85	fi
86	CONF_LIBDIR="$1"
87	CONF_LIBDIR_OVERRIDE="$1"
88	LIBDIR_default="$1"
89	}
90
91	# @FUNCTION: get_abi_var
92	# @USAGE: <VAR> [ABI]
93	# @RETURN: returns the value of ${<VAR>_<ABI>} which should be set in make.defaults
94	# @DESCRIPTION:
95	# ex:
96	# CFLAGS=$(get_abi_var CFLAGS sparc32) # CFLAGS=-m32
97	#
98	# Note that the prefered method is to set CC="$(tc-getCC) $(get_abi_CFLAGS)"
99	# This will hopefully be added to portage soon...
100	#
101	# If <ABI> is not specified, ${ABI} is used.
102	# If <ABI> is not specified and ${ABI} is not defined, ${DEFAULT_ABI} is used.
103	# If <ABI> is not specified and ${ABI} and ${DEFAULT_ABI} are not defined, we return an empty string.
104	get_abi_var() {
105	local flag=$1
106	local abi
107	if [ $# -gt 1 ]; then
108	abi=${2}
109	elif [ -n "${ABI}" ]; then
110	abi=${ABI}
111	elif [ -n "${DEFAULT_ABI}" ]; then
112	abi=${DEFAULT_ABI}
113	else
114	abi="default"
115	fi
116
117	local var="${flag}_${abi}"
118	echo ${!var}
119	}
120
121	# @FUNCTION: get_abi_CFLAGS
122	# @USAGE: [ABI]
123	# @DESCRIPTION:
124	# Alias for 'get_abi_var CFLAGS'
125	get_abi_CFLAGS() { get_abi_var CFLAGS "$@"; }
126
127	# @FUNCTION: get_abi_ASFLAGS
128	# @USAGE: [ABI]
129	# @DESCRIPTION:
130	# Alias for 'get_abi_var ASFLAGS'
131	get_abi_ASFLAGS() { get_abi_var ASFLAGS "$@"; }
132
133	# @FUNCTION: get_abi_LDFLAGS
134	# @USAGE: [ABI]
135	# @DESCRIPTION:
136	# Alias for 'get_abi_var LDFLAGS'
137	get_abi_LDFLAGS() { get_abi_var LDFLAGS "$@"; }
138
139	# @FUNCTION: get_abi_CHOST
140	# @USAGE: [ABI]
141	# @DESCRIPTION:
142	# Alias for 'get_abi_var CHOST'
143	get_abi_CHOST() { get_abi_var CHOST "$@"; }
144
145	# @FUNCTION: get_abi_CTARGET
146	# @USAGE: [ABI]
147	# @DESCRIPTION:
148	# Alias for 'get_abi_var CTARGET'
149	get_abi_CTARGET() { get_abi_var CTARGET "$@"; }
150
151	# @FUNCTION: get_abi_FAKE_TARGETS
152	# @USAGE: [ABI]
153	# @DESCRIPTION:
154	# Alias for 'get_abi_var FAKE_TARGETS'
155	get_abi_FAKE_TARGETS() { get_abi_var FAKE_TARGETS "$@"; }
156
157	# @FUNCTION: get_abi_LIBDIR
158	# @USAGE: [ABI]
159	# @DESCRIPTION:
160	# Alias for 'get_abi_var LIBDIR'
161	get_abi_LIBDIR() { get_abi_var LIBDIR "$@"; }
162
163	# @FUNCTION: get_install_abis
164	# @DESCRIPTION:
165	# Return a list of the ABIs we want to install for with
166	# the last one in the list being the default.
167	get_install_abis() {
168	local order=""
169
170	if [[ -z ${MULTILIB_ABIS} ]] ; then
171	echo "default"
172	return 0
173	fi
174
175	if [[ ${EMULTILIB_PKG} == "true" ]] ; then
176	for x in ${MULTILIB_ABIS} ; do
177	if [[ ${x} != "${DEFAULT_ABI}" ]] ; then
178	has ${x} ${ABI_DENY} \|\| order="${order} ${x}"
179	fi
180	done
181	has ${DEFAULT_ABI} ${ABI_DENY} \|\| order="${order} ${DEFAULT_ABI}"
182
183	if [[ -n ${ABI_ALLOW} ]] ; then
184	local ordera=""
185	for x in ${order} ; do
186	if has ${x} ${ABI_ALLOW} ; then
187	ordera="${ordera} ${x}"
188	fi
189	done
190	order=${ordera}
191	fi
192	else
193	order=${DEFAULT_ABI}
194	fi
195
196	if [[ -z ${order} ]] ; then
197	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."
198	fi
199
200	echo ${order}
201	return 0
202	}
203
204	# @FUNCTION: get_all_abis
205	# @DESCRIPTION:
206	# Return a list of the ABIs supported by this profile.
207	# the last one in the list being the default.
208	get_all_abis() {
209	local order=""
210
211	if [[ -z ${MULTILIB_ABIS} ]] ; then
212	echo "default"
213	return 0
214	fi
215
216	for x in ${MULTILIB_ABIS}; do
217	if [[ ${x} != ${DEFAULT_ABI} ]] ; then
218	order="${order:+${order} }${x}"
219	fi
220	done
221	order="${order:+${order} }${DEFAULT_ABI}"
222
223	echo ${order}
224	return 0
225	}
226
227	# @FUNCTION: get_all_libdirs
228	# @DESCRIPTION:
229	# Returns a list of all the libdirs used by this profile. This includes
230	# those that might not be touched by the current ebuild and always includes
231	# "lib".
232	get_all_libdirs() {
233	local libdirs
234	local abi
235	local dir
236
237	for abi in ${MULTILIB_ABIS}; do
238	libdirs+=" $(get_abi_LIBDIR ${abi})"
239	done
240	[[ " ${libdirs} " != " lib " ]] && libdirs+=" lib"
241
242	echo "${libdirs}"
243	}
244
245	# @FUNCTION: is_final_abi
246	# @DESCRIPTION:
247	# Return true if ${ABI} is the last ABI on our list (or if we're not
248	# using the new multilib configuration. This can be used to determine
249	# if we're in the last (or only) run through src_{unpack,compile,install}
250	is_final_abi() {
251	has_multilib_profile \|\| return 0
252	set -- $(get_install_abis)
253	local LAST_ABI=$#
254	[[ ${!LAST_ABI} == ${ABI} ]]
255	}
256
257	# @FUNCTION: number_abis
258	# @DESCRIPTION:
259	# echo the number of ABIs we will be installing for
260	number_abis() {
261	set -- `get_install_abis`
262	echo $#
263	}
264
265	# @FUNCTION: get_libname
266	# @USAGE: [version]
267	# @DESCRIPTION:
268	# Returns libname with proper suffix {.so,.dylib,.dll,etc} and optionally
269	# supplied version for the current platform identified by CHOST.
270	#
271	# Example:
272	# get_libname ${PV}
273	# Returns: .so.${PV} (ELF) \|\| .${PV}.dylib (MACH) \|\| ...
274	get_libname() {
275	local libname
276	local ver=$1
277	case ${CHOST} in
278	-cygwin\|mingw\|-mingw) libname="dll";;
279	-darwin) libname="dylib";;
280	-mint) libname="irrelevant";;
281	hppa-hpux) libname="sl";;
282	*) libname="so";;
283	esac
284
285	if [[ -z $* ]] ; then
286	echo ".${libname}"
287	else
288	for ver in "$@" ; do
289	case ${CHOST} in
290	-darwin) echo ".${ver}.${libname}";;
291	-mint) echo ".${libname}";;
292	*) echo ".${libname}.${ver}";;
293	esac
294	done
295	fi
296	}
297
298	# @FUNCTION: get_modname
299	# @USAGE:
300	# @DESCRIPTION:
301	# Returns modulename with proper suffix {.so,.bundle,etc} for the current
302	# platform identified by CHOST.
303	#
304	# Example:
305	# libfoo$(get_modname)
306	# Returns: libfoo.so (ELF) \|\| libfoo.bundle (MACH) \|\| ...
307	get_modname() {
308	local modname
309	local ver=$1
310	case ${CHOST} in
311	-darwin) modname="bundle";;
312	*) modname="so";;
313	esac
314
315	echo ".${modname}"
316	}
317
318	# This is for the toolchain to setup profile variables when pulling in
319	# a crosscompiler (and thus they aren't set in the profile)
320	multilib_env() {
321	local CTARGET=${1:-${CTARGET}}
322
323	case ${CTARGET} in
324	x86_64*)
325	export CFLAGS_x86=${CFLAGS_x86--m32}
326	export CHOST_x86=${CTARGET/x86_64/i686}
327	export CTARGET_x86=${CHOST_x86}
328	if [[ ${SYMLINK_LIB} == "yes" ]] ; then
329	export LIBDIR_x86="lib32"
330	else
331	export LIBDIR_x86="lib"
332	fi
333
334	export CFLAGS_amd64=${CFLAGS_amd64--m64}
335	export CHOST_amd64=${CTARGET}
336	export CTARGET_amd64=${CHOST_amd64}
337	export LIBDIR_amd64="lib64"
338
339	export CFLAGS_x32=${CFLAGS_x32--mx32}
340	export CHOST_x32=${CTARGET}
341	export CTARGET_x32=${CHOST_x32}
342	export LIBDIR_x32="libx32"
343
344	: ${MULTILIB_ABIS=amd64 x86}
345	: ${DEFAULT_ABI=amd64}
346	;;
347	mips64*)
348	export CFLAGS_o32=${CFLAGS_o32--mabi=32}
349	export CHOST_o32=${CTARGET/mips64/mips}
350	export CTARGET_o32=${CHOST_o32}
351	export LIBDIR_o32="lib"
352
353	export CFLAGS_n32=${CFLAGS_n32--mabi=n32}
354	export CHOST_n32=${CTARGET}
355	export CTARGET_n32=${CHOST_n32}
356	export LIBDIR_n32="lib32"
357
358	export CFLAGS_n64=${CFLAGS_n64--mabi=64}
359	export CHOST_n64=${CTARGET}
360	export CTARGET_n64=${CHOST_n64}
361	export LIBDIR_n64="lib64"
362
363	: ${MULTILIB_ABIS=n64 n32 o32}
364	: ${DEFAULT_ABI=n32}
365	;;
366	powerpc64*)
367	export CFLAGS_ppc=${CFLAGS_ppc--m32}
368	export CHOST_ppc=${CTARGET/powerpc64/powerpc}
369	export CTARGET_ppc=${CHOST_ppc}
370	export LIBDIR_ppc="lib"
371
372	export CFLAGS_ppc64=${CFLAGS_ppc64--m64}
373	export CHOST_ppc64=${CTARGET}
374	export CTARGET_ppc64=${CHOST_ppc64}
375	export LIBDIR_ppc64="lib64"
376
377	: ${MULTILIB_ABIS=ppc64 ppc}
378	: ${DEFAULT_ABI=ppc64}
379	;;
380	s390x*)
381	export CFLAGS_s390=${CFLAGS_s390--m31} # the 31 is not a typo
382	export CHOST_s390=${CTARGET/s390x/s390}
383	export CTARGET_s390=${CHOST_s390}
384	export LIBDIR_s390="lib"
385
386	export CFLAGS_s390x=${CFLAGS_s390x--m64}
387	export CHOST_s390x=${CTARGET}
388	export CTARGET_s390x=${CHOST_s390x}
389	export LIBDIR_s390x="lib64"
390
391	: ${MULTILIB_ABIS=s390x s390}
392	: ${DEFAULT_ABI=s390x}
393	;;
394	sparc*)
395	export CFLAGS_sparc32=${CFLAGS_sparc32}
396	export CHOST_sparc32=${CTARGET/sparc64/sparc}
397	export CTARGET_sparc32=${CHOST_sparc32}
398	export LIBDIR_sparc32="lib"
399
400	export CFLAGS_sparc64=${CFLAGS_sparc64--m64}
401	export CHOST_sparc64=${CTARGET}
402	export CTARGET_sparc64=${CHOST_sparc64}
403	export LIBDIR_sparc64="lib64"
404
405	: ${MULTILIB_ABIS=sparc64 sparc32}
406	: ${DEFAULT_ABI=sparc64}
407	;;
408	*)
409	: ${MULTILIB_ABIS=default}
410	: ${DEFAULT_ABI=default}
411	;;
412	esac
413
414	export MULTILIB_ABIS DEFAULT_ABI
415	}
416
417	# @FUNCTION: multilib_toolchain_setup
418	# @DESCRIPTION:
419	# Hide multilib details here for packages which are forced to be compiled for a
420	# specific ABI when run on another ABI (like x86-specific packages on amd64)
421	multilib_toolchain_setup() {
422	local v vv
423
424	export ABI=$1
425
426	# First restore any saved state we have laying around.
427	if [[ ${__DEFAULT_ABI_SAVED} == "true" ]] ; then
428	for v in CHOST CBUILD AS CC CXX LD ; do
429	vv="__abi_saved_${v}"
430	export ${v}="${!vv}"
431	unset ${vv}
432	done
433	unset __DEFAULT_ABI_SAVED
434	fi
435
436	# We want to avoid the behind-the-back magic of gcc-config as it
437	# screws up ccache and distcc. See #196243 for more info.
438	if [[ ${ABI} != ${DEFAULT_ABI} ]] ; then
439	# Back that multilib-ass up so we can restore it later
440	for v in CHOST CBUILD AS CC CXX LD ; do
441	export __abi_saved_${v}="${!v}"
442	done
443	export __DEFAULT_ABI_SAVED="true"
444
445	# Set the CHOST native first so that we pick up the native
446	# toolchain and not a cross-compiler by accident #202811.
447	export CHOST=$(get_abi_CHOST ${DEFAULT_ABI})
448	export AS="$(tc-getAS) $(get_abi_ASFLAGS)"
449	export CC="$(tc-getCC) $(get_abi_CFLAGS)"
450	export CXX="$(tc-getCXX) $(get_abi_CFLAGS)"
451	export LD="$(tc-getLD) $(get_abi_LDFLAGS)"
452	export CHOST=$(get_abi_CHOST $1)
453	export CBUILD=$(get_abi_CHOST $1)
454	fi
455	}