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650 lines
20 KiB
650 lines
20 KiB
# Copyright 1999-2014 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/multilib-build.eclass,v 1.63 2014/07/04 13:02:21 mgorny Exp $
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# @ECLASS: multilib-build.eclass
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# @MAINTAINER:
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# gx86-multilib team <multilib@gentoo.org>
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# @AUTHOR:
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# Author: Michał Górny <mgorny@gentoo.org>
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# @BLURB: flags and utility functions for building multilib packages
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# @DESCRIPTION:
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# The multilib-build.eclass exports USE flags and utility functions
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# necessary to build packages for multilib in a clean and uniform
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# manner.
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#
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# Please note that dependency specifications for multilib-capable
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# dependencies shall use the USE dependency string in ${MULTILIB_USEDEP}
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# to properly request multilib enabled.
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if [[ ! ${_MULTILIB_BUILD} ]]; then
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# EAPI=4 is required for meaningful MULTILIB_USEDEP.
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case ${EAPI:-0} in
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4|5) ;;
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*) die "EAPI=${EAPI} is not supported" ;;
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esac
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inherit multibuild multilib
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# @ECLASS-VARIABLE: _MULTILIB_FLAGS
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# @INTERNAL
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# @DESCRIPTION:
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# The list of multilib flags and corresponding ABI values. If the same
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# flag is reused for multiple ABIs (e.g. x86 on Linux&FreeBSD), multiple
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# ABIs may be separated by commas.
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#
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# Please contact multilib before modifying this list. This way we can
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# ensure that every *preliminary* work is done and the multilib can be
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# extended safely.
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_MULTILIB_FLAGS=(
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abi_x86_32:x86,x86_fbsd,x86_freebsd,x86_linux,x86_macos,x86_solaris
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abi_x86_64:amd64,amd64_fbsd,x64_freebsd,amd64_linux,x64_macos,x64_solaris
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abi_x86_x32:x32
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abi_mips_n32:n32
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abi_mips_n64:n64
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abi_mips_o32:o32
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abi_ppc_32:ppc,ppc_aix,ppc_macos
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abi_ppc_64:ppc64
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abi_s390_32:s390
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abi_s390_64:s390x
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)
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# @ECLASS-VARIABLE: MULTILIB_COMPAT
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# List of multilib ABIs supported by the ebuild. If unset, defaults to
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# all ABIs supported by the eclass.
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#
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# This variable is intended for use in prebuilt multilib packages that
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# can provide binaries only for a limited set of ABIs. If ABIs need to
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# be limited due to a bug in source code, package.use.mask is to be used
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# instead. Along with MULTILIB_COMPAT, KEYWORDS should contain '-*'.
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#
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# Note that setting this variable effectively disables support for all
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# other ABIs, including other architectures. For example, specifying
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# abi_x86_{32,64} disables support for MIPS as well.
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#
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# The value of MULTILIB_COMPAT determines the value of IUSE. If set, it
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# also enables REQUIRED_USE constraints.
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#
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# Example use:
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# @CODE
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# # Upstream provides binaries for x86 & amd64 only
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# MULTILIB_COMPAT=( abi_x86_{32,64} )
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# @CODE
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# @ECLASS-VARIABLE: MULTILIB_USEDEP
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# @DESCRIPTION:
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# The USE-dependency to be used on dependencies (libraries) needing
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# to support multilib as well.
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#
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# Example use:
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# @CODE
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# RDEPEND="dev-libs/libfoo[${MULTILIB_USEDEP}]
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# net-libs/libbar[ssl,${MULTILIB_USEDEP}]"
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# @CODE
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# @ECLASS-VARIABLE: MULTILIB_ABI_FLAG
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# The complete ABI name. Resembles the USE flag name.
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#
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# This is set within multilib_foreach_abi(),
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# multilib_parallel_foreach_abi() and multilib-minimal sub-phase
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# functions.
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#
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# It may be null (empty) when the build is done on ABI not controlled
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# by a USE flag (e.g. on non-multilib arch or when using multilib
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# portage). The build will always be done for a single ABI then.
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#
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# Example value:
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# @CODE
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# abi_x86_64
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# @CODE
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_multilib_build_set_globals() {
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local flags=( "${_MULTILIB_FLAGS[@]%:*}" )
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if [[ ${MULTILIB_COMPAT[@]} ]]; then
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# Validate MULTILIB_COMPAT and filter out the flags.
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local f
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for f in "${MULTILIB_COMPAT[@]}"; do
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if ! has "${f}" "${flags[@]}"; then
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die "Invalid value in MULTILIB_COMPAT: ${f}"
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fi
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done
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flags=( "${MULTILIB_COMPAT[@]}" )
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REQUIRED_USE="|| ( ${flags[*]} )"
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fi
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local usedeps=${flags[@]/%/(-)?}
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IUSE=${flags[*]}
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MULTILIB_USEDEP=${usedeps// /,}
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}
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_multilib_build_set_globals
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# @FUNCTION: multilib_get_enabled_abis
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# @DESCRIPTION:
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# Return the ordered list of enabled ABIs if multilib builds
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# are enabled. The best (most preferred) ABI will come last.
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#
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# If multilib is disabled, the default ABI will be returned
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# in order to enforce consistent testing with multilib code.
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multilib_get_enabled_abis() {
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debug-print-function ${FUNCNAME} "${@}"
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local pairs=( $(multilib_get_enabled_abi_pairs) )
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echo "${pairs[@]#*.}"
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}
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# @FUNCTION: multilib_get_enabled_abi_pairs
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# @DESCRIPTION:
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# Return the ordered list of enabled <use-flag>.<ABI> pairs
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# if multilib builds are enabled. The best (most preferred)
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# ABI will come last.
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#
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# If multilib is disabled, the default ABI will be returned
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# along with empty <use-flag>.
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multilib_get_enabled_abi_pairs() {
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debug-print-function ${FUNCNAME} "${@}"
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local abis=( $(get_all_abis) )
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local abi i found
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for abi in "${abis[@]}"; do
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for i in "${_MULTILIB_FLAGS[@]}"; do
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local m_abis=${i#*:} m_abi
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local m_flag=${i%:*}
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# split on ,; we can't switch IFS for function scope because
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# paludis is broken (bug #486592), and switching it locally
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# for the split is more complex than cheating like this
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for m_abi in ${m_abis//,/ }; do
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if [[ ${m_abi} == ${abi} ]] \
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&& { [[ ! "${MULTILIB_COMPAT[@]}" ]] || has "${m_flag}" "${MULTILIB_COMPAT[@]}"; } \
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&& use "${m_flag}"
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then
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echo "${m_flag}.${abi}"
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found=1
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break 2
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fi
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done
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done
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done
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if [[ ! ${found} ]]; then
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# ${ABI} can be used to override the fallback (multilib-portage),
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# ${DEFAULT_ABI} is the safe fallback.
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local abi=${ABI:-${DEFAULT_ABI}}
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debug-print "${FUNCNAME}: no ABIs enabled, fallback to ${abi}"
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debug-print "${FUNCNAME}: ABI=${ABI}, DEFAULT_ABI=${DEFAULT_ABI}"
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echo ".${abi}"
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fi
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}
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# @FUNCTION: _multilib_multibuild_wrapper
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# @USAGE: <argv>...
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# @INTERNAL
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# @DESCRIPTION:
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# Initialize the environment for ABI selected for multibuild.
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_multilib_multibuild_wrapper() {
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debug-print-function ${FUNCNAME} "${@}"
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local ABI=${MULTIBUILD_VARIANT#*.}
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local MULTILIB_ABI_FLAG=${MULTIBUILD_VARIANT%.*}
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multilib_toolchain_setup "${ABI}"
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"${@}"
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}
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# @FUNCTION: multilib_foreach_abi
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# @USAGE: <argv>...
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# @DESCRIPTION:
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# If multilib support is enabled, sets the toolchain up for each
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# supported ABI along with the ABI variable and correct BUILD_DIR,
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# and runs the given commands with them.
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#
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# If multilib support is disabled, it just runs the commands. No setup
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# is done.
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multilib_foreach_abi() {
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debug-print-function ${FUNCNAME} "${@}"
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local MULTIBUILD_VARIANTS=( $(multilib_get_enabled_abi_pairs) )
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multibuild_foreach_variant _multilib_multibuild_wrapper "${@}"
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}
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# @FUNCTION: multilib_parallel_foreach_abi
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# @USAGE: <argv>...
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# @DESCRIPTION:
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# If multilib support is enabled, sets the toolchain up for each
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# supported ABI along with the ABI variable and correct BUILD_DIR,
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# and runs the given commands with them. The commands are run
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# in parallel with number of jobs being determined from MAKEOPTS.
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#
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# If multilib support is disabled, it just runs the commands. No setup
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# is done.
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#
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# Useful for running configure scripts.
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multilib_parallel_foreach_abi() {
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debug-print-function ${FUNCNAME} "${@}"
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local MULTIBUILD_VARIANTS=( $(multilib_get_enabled_abi_pairs) )
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multibuild_parallel_foreach_variant _multilib_multibuild_wrapper "${@}"
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}
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# @FUNCTION: multilib_for_best_abi
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# @USAGE: <argv>...
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# @DESCRIPTION:
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# Runs the given command with setup for the 'best' (usually native) ABI.
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multilib_for_best_abi() {
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debug-print-function ${FUNCNAME} "${@}"
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eqawarn "QA warning: multilib_for_best_abi() function is deprecated and should"
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eqawarn "not be used. The multilib_is_native_abi() check may be used instead."
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local MULTIBUILD_VARIANTS=( $(multilib_get_enabled_abi_pairs) )
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multibuild_for_best_variant _multilib_multibuild_wrapper "${@}"
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}
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# @FUNCTION: multilib_check_headers
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# @DESCRIPTION:
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# Check whether the header files are consistent between ABIs.
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#
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# This function needs to be called after each ABI's installation phase.
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# It obtains the header file checksums and compares them with previous
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# runs (if any). Dies if header files differ.
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multilib_check_headers() {
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_multilib_header_cksum() {
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[[ -d ${ED}usr/include ]] && \
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find "${ED}"usr/include -type f \
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-exec cksum {} + | sort -k2
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}
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local cksum=$(_multilib_header_cksum)
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local cksum_file=${T}/.multilib_header_cksum
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if [[ -f ${cksum_file} ]]; then
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local cksum_prev=$(< "${cksum_file}")
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if [[ ${cksum} != ${cksum_prev} ]]; then
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echo "${cksum}" > "${cksum_file}.new"
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eerror "Header files have changed between ABIs."
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if type -p diff &>/dev/null; then
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eerror "$(diff -du "${cksum_file}" "${cksum_file}.new")"
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else
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eerror "Old checksums in: ${cksum_file}"
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eerror "New checksums in: ${cksum_file}.new"
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fi
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die "Header checksum mismatch, aborting."
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fi
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else
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echo "${cksum}" > "${cksum_file}"
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fi
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}
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# @FUNCTION: multilib_copy_sources
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# @DESCRIPTION:
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# Create a single copy of the package sources for each enabled ABI.
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#
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# The sources are always copied from initial BUILD_DIR (or S if unset)
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# to ABI-specific build directory matching BUILD_DIR used by
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# multilib_foreach_abi().
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multilib_copy_sources() {
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debug-print-function ${FUNCNAME} "${@}"
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local MULTIBUILD_VARIANTS=( $(multilib_get_enabled_abi_pairs) )
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multibuild_copy_sources
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}
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# @ECLASS-VARIABLE: MULTILIB_WRAPPED_HEADERS
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# @DESCRIPTION:
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# A list of headers to wrap for multilib support. The listed headers
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# will be moved to a non-standard location and replaced with a file
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# including them conditionally to current ABI.
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#
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# This variable has to be a bash array. Paths shall be relative to
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# installation root (${ED}), and name regular files. Recursive wrapping
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# is not supported.
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#
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# Please note that header wrapping is *discouraged*. It is preferred to
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# install all headers in a subdirectory of libdir and use pkg-config to
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# locate the headers. Some C preprocessors will not work with wrapped
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# headers.
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#
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# Example:
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# @CODE
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# MULTILIB_WRAPPED_HEADERS=(
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# /usr/include/foobar/config.h
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# )
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# @CODE
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# @ECLASS-VARIABLE: MULTILIB_CHOST_TOOLS
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# @DESCRIPTION:
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# A list of tool executables to preserve for each multilib ABI.
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# The listed executables will be renamed to ${CHOST}-${basename},
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# and the native variant will be symlinked to the generic name.
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#
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# This variable has to be a bash array. Paths shall be relative to
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# installation root (${ED}), and name regular files or symbolic
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# links to regular files. Recursive wrapping is not supported.
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#
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# If symbolic link is passed, both symlink path and symlink target
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# will be changed. As a result, the symlink target is expected
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# to be wrapped as well (either by listing in MULTILIB_CHOST_TOOLS
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# or externally).
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#
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# Please note that tool wrapping is *discouraged*. It is preferred to
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# install pkg-config files for each ABI, and require reverse
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# dependencies to use that.
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#
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# Packages that search for tools properly (e.g. using AC_PATH_TOOL
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# macro) will find the wrapper executables automatically. Other packages
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# will need explicit override of tool paths.
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#
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# Example:
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# @CODE
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# MULTILIB_CHOST_TOOLS=(
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# /usr/bin/foo-config
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# )
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# @CODE
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# @FUNCTION: multilib_prepare_wrappers
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# @USAGE: [<install-root>]
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# @DESCRIPTION:
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# Perform the preparation of all kinds of wrappers for the current ABI.
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# This function shall be called once per each ABI, after installing
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# the files to be wrapped.
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#
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# Takes an optional custom <install-root> from which files will be
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# used. If no root is specified, uses ${ED}.
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#
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# The files to be wrapped are specified using separate variables,
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# e.g. MULTILIB_WRAPPED_HEADERS. Those variables shall not be changed
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# between the successive calls to multilib_prepare_wrappers
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# and multilib_install_wrappers.
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#
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# After all wrappers are prepared, multilib_install_wrappers shall
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# be called to commit them to the installation tree.
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multilib_prepare_wrappers() {
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debug-print-function ${FUNCNAME} "${@}"
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[[ ${#} -le 1 ]] || die "${FUNCNAME}: too many arguments"
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local root=${1:-${ED}}
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local f
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if [[ ${COMPLETE_MULTILIB} == yes ]]; then
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# symlink '${CHOST}-foo -> foo' to support abi-wrapper while
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# keeping ${CHOST}-foo calls correct.
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for f in "${MULTILIB_CHOST_TOOLS[@]}"; do
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# drop leading slash if it's there
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f=${f#/}
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local dir=${f%/*}
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local fn=${f##*/}
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ln -s "${fn}" "${root}/${dir}/${CHOST}-${fn}" || die
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done
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return
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fi
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for f in "${MULTILIB_CHOST_TOOLS[@]}"; do
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# drop leading slash if it's there
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f=${f#/}
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local dir=${f%/*}
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local fn=${f##*/}
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if [[ -L ${root}/${f} ]]; then
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# rewrite the symlink target
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local target=$(readlink "${root}/${f}")
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local target_dir
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local target_fn=${target##*/}
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[[ ${target} == */* ]] && target_dir=${target%/*}
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ln -f -s "${target_dir+${target_dir}/}${CHOST}-${target_fn}" \
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"${root}/${f}" || die
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fi
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mv "${root}/${f}" "${root}/${dir}/${CHOST}-${fn}" || die
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# symlink the native one back
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if multilib_is_native_abi; then
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ln -s "${CHOST}-${fn}" "${root}/${f}" || die
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fi
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done
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if [[ ${MULTILIB_WRAPPED_HEADERS[@]} ]]; then
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# If abi_flag is unset, then header wrapping is unsupported on
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# this ABI. This means the arch doesn't support multilib at all
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# -- in this case, the headers are not wrapped and everything
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# works as expected.
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if [[ ${MULTILIB_ABI_FLAG} ]]; then
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for f in "${MULTILIB_WRAPPED_HEADERS[@]}"; do
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# drop leading slash if it's there
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f=${f#/}
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if [[ ${f} != usr/include/* ]]; then
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die "Wrapping headers outside of /usr/include is not supported at the moment."
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fi
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# and then usr/include
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f=${f#usr/include}
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local dir=${f%/*}
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# Some ABIs may have install less files than others.
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if [[ -f ${root}/usr/include${f} ]]; then
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local wrapper=${ED}/tmp/multilib-include${f}
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if [[ ! -f ${ED}/tmp/multilib-include${f} ]]; then
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dodir "/tmp/multilib-include${dir}"
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# a generic template
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cat > "${wrapper}" <<_EOF_
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/* This file is auto-generated by multilib-build.eclass
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* as a multilib-friendly wrapper. For the original content,
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* please see the files that are #included below.
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*/
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#if defined(__x86_64__) /* amd64 */
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# if defined(__ILP32__) /* x32 ABI */
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# error "abi_x86_x32 not supported by the package."
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# else /* 64-bit ABI */
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# error "abi_x86_64 not supported by the package."
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# endif
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#elif defined(__i386__) /* plain x86 */
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# error "abi_x86_32 not supported by the package."
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#elif defined(__mips__)
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# if(_MIPS_SIM == _ABIN32) /* n32 */
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# error "abi_mips_n32 not supported by the package."
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# elif(_MIPS_SIM == _ABI64) /* n64 */
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# error "abi_mips_n64 not supported by the package."
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# elif(_MIPS_SIM == _ABIO32) /* o32 */
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# error "abi_mips_o32 not supported by the package."
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# endif
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#elif defined(__sparc__)
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# if defined(__arch64__)
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# error "abi_sparc_64 not supported by the package."
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# else
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# error "abi_sparc_32 not supported by the package."
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# endif
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#elif defined(__s390__)
|
|
# if defined(__s390x__)
|
|
# error "abi_s390_64 not supported by the package."
|
|
# else
|
|
# error "abi_s390_32 not supported by the package."
|
|
# endif
|
|
#elif defined(__powerpc__)
|
|
# if defined(__powerpc64__)
|
|
# error "abi_ppc_64 not supported by the package."
|
|
# else
|
|
# error "abi_ppc_32 not supported by the package."
|
|
# endif
|
|
#elif defined(SWIG) /* https://sourceforge.net/p/swig/bugs/799/ */
|
|
# error "Native ABI not supported by the package."
|
|
#else
|
|
# error "No ABI matched, please report a bug to bugs.gentoo.org"
|
|
#endif
|
|
_EOF_
|
|
fi
|
|
|
|
if ! grep -q "${MULTILIB_ABI_FLAG} " "${wrapper}"
|
|
then
|
|
die "Flag ${MULTILIB_ABI_FLAG} not listed in wrapper template. Please report a bug to https://bugs.gentoo.org."
|
|
fi
|
|
|
|
# $CHOST shall be set by multilib_toolchain_setup
|
|
dodir "/tmp/multilib-include/${CHOST}${dir}"
|
|
mv "${root}/usr/include${f}" "${ED}/tmp/multilib-include/${CHOST}${dir}/" || die
|
|
|
|
# Note: match a space afterwards to avoid collision potential.
|
|
sed -e "/${MULTILIB_ABI_FLAG} /s&error.*&include <${CHOST}${f}>&" \
|
|
-i "${wrapper}" || die
|
|
|
|
# Hack for emul-linux-x86 compatibility.
|
|
# It assumes amd64 will come after x86, and will use amd64
|
|
# headers if no specific x86 headers were installed.
|
|
if [[ ${ABI} == amd64 ]]; then
|
|
sed -e "/abi_x86_32 /s&error.*&include <${CHOST}${f}>&" \
|
|
-i "${wrapper}" || die
|
|
fi
|
|
|
|
# Needed for swig.
|
|
if multilib_is_native_abi; then
|
|
sed -e "/Native ABI/s&error.*&include <${CHOST}${f}>&" \
|
|
-i "${wrapper}" || die
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
fi
|
|
}
|
|
|
|
# @FUNCTION: multilib_install_wrappers
|
|
# @USAGE: [<install-root>]
|
|
# @DESCRIPTION:
|
|
# Install the previously-prepared wrappers. This function shall
|
|
# be called once, after all wrappers were prepared.
|
|
#
|
|
# Takes an optional custom <install-root> to which the wrappers will be
|
|
# installed. If no root is specified, uses ${ED}. There is no need to
|
|
# use the same root as when preparing the wrappers.
|
|
#
|
|
# The files to be wrapped are specified using separate variables,
|
|
# e.g. MULTILIB_WRAPPED_HEADERS. Those variables shall not be changed
|
|
# between the calls to multilib_prepare_wrappers
|
|
# and multilib_install_wrappers.
|
|
multilib_install_wrappers() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
[[ ${#} -le 1 ]] || die "${FUNCNAME}: too many arguments"
|
|
|
|
[[ ${COMPLETE_MULTILIB} == yes ]] && return
|
|
|
|
local root=${1:-${ED}}
|
|
|
|
if [[ -d "${ED}"/tmp/multilib-include ]]; then
|
|
multibuild_merge_root \
|
|
"${ED}"/tmp/multilib-include "${root}"/usr/include
|
|
# it can fail if something else uses /tmp
|
|
rmdir "${ED}"/tmp &>/dev/null
|
|
fi
|
|
}
|
|
|
|
# @FUNCTION: multilib_is_native_abi
|
|
# @DESCRIPTION:
|
|
# Determine whether the currently built ABI is the profile native.
|
|
# Return true status (0) if that is true, otherwise false (1).
|
|
#
|
|
# This function is not intended to be used directly. Please use
|
|
# multilib_build_binaries instead.
|
|
multilib_is_native_abi() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
[[ ${#} -eq 0 ]] || die "${FUNCNAME}: too many arguments"
|
|
|
|
[[ ${COMPLETE_MULTILIB} == yes || ${ABI} == ${DEFAULT_ABI} ]]
|
|
}
|
|
|
|
# @FUNCTION: multilib_build_binaries
|
|
# @DESCRIPTION:
|
|
# Determine whether to build binaries for the currently built ABI.
|
|
# Returns true status (0) if the currently built ABI is the profile
|
|
# native or COMPLETE_MULTILIB variable is set to 'yes', otherwise
|
|
# false (1).
|
|
#
|
|
# This is often useful for configure calls when some of the options are
|
|
# supposed to be disabled for multilib ABIs (like those used for
|
|
# executables only).
|
|
multilib_build_binaries() {
|
|
debug-print-function ${FUNCNAME} "${@}"
|
|
|
|
eqawarn "QA warning: multilib_build_binaries is deprecated. Please use the equivalent"
|
|
eqawarn "multilib_is_native_abi function instead."
|
|
|
|
multilib_is_native_abi "${@}"
|
|
}
|
|
|
|
# @FUNCTION: multilib_native_use_with
|
|
# @USAGE: <flag> [<opt-name> [<opt-value>]]
|
|
# @DESCRIPTION:
|
|
# Output --with configure option alike use_with if USE <flag> is enabled
|
|
# and executables are being built (multilib_is_native_abi is true).
|
|
# Otherwise, outputs --without configure option. Arguments are the same
|
|
# as for use_with in the EAPI.
|
|
multilib_native_use_with() {
|
|
if multilib_is_native_abi; then
|
|
use_with "${@}"
|
|
else
|
|
echo "--without-${2:-${1}}"
|
|
fi
|
|
}
|
|
|
|
# @FUNCTION: multilib_native_use_enable
|
|
# @USAGE: <flag> [<opt-name> [<opt-value>]]
|
|
# @DESCRIPTION:
|
|
# Output --enable configure option alike use_with if USE <flag>
|
|
# is enabled and executables are being built (multilib_is_native_abi
|
|
# is true). Otherwise, outputs --disable configure option. Arguments are
|
|
# the same as for use_enable in the EAPI.
|
|
multilib_native_use_enable() {
|
|
if multilib_is_native_abi; then
|
|
use_enable "${@}"
|
|
else
|
|
echo "--disable-${2:-${1}}"
|
|
fi
|
|
}
|
|
|
|
# @FUNCTION: multilib_native_usex
|
|
# @USAGE: <flag> [<true1> [<false1> [<true2> [<false2>]]]]
|
|
# @DESCRIPTION:
|
|
# Output the concatenation of <true1> (or 'yes' if unspecified)
|
|
# and <true2> if USE <flag> is enabled and executables are being built
|
|
# (multilib_is_native_abi is true). Otherwise, output the concatenation
|
|
# of <false1> (or 'no' if unspecified) and <false2>. Arguments
|
|
# are the same as for usex in the EAPI.
|
|
#
|
|
# Note: in EAPI 4 you need to inherit eutils to use this function.
|
|
multilib_native_usex() {
|
|
if multilib_is_native_abi; then
|
|
usex "${@}"
|
|
else
|
|
echo "${3-no}${5}"
|
|
fi
|
|
}
|
|
|
|
_MULTILIB_BUILD=1
|
|
fi
|