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-rw-r--r--eclass/multilib.eclass472
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diff --git a/eclass/multilib.eclass b/eclass/multilib.eclass
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+# 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