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mgorny |
1.1 |
# Copyright 1999-2013 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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mgorny |
1.8 |
# $Header: /var/cvsroot/gentoo-x86/eclass/multilib-build.eclass,v 1.7 2013/03/02 18:18:13 mgorny Exp $
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mgorny |
1.1 |
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# @ECLASS: multilib-build.eclass
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# @MAINTAINER:
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# 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=5 is required for meaningful MULTILIB_USEDEP.
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case ${EAPI:-0} in
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5) ;;
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*) die "EAPI=${EAPI} is not supported" ;;
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esac
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mgorny |
1.8 |
inherit multibuild multilib
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mgorny |
1.1 |
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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.
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_MULTILIB_FLAGS=(
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abi_x86_32:x86
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abi_x86_64:amd64
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mgorny |
1.6 |
abi_x86_x32:x32
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mgorny |
1.1 |
)
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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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_multilib_build_set_globals() {
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local flags=( "${_MULTILIB_FLAGS[@]%:*}" )
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local usedeps=${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 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 "${_MULTILIB_FLAGS[@]}"; do
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local m_abi=${i#*:}
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local m_flag=${i%:*}
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if [[ ${m_abi} == ${abi} ]] && use "${m_flag}"; then
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echo "${abi}"
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found=1
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fi
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done
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done
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if [[ ! ${found} ]]; then
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mgorny |
1.7 |
# ${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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mgorny |
1.1 |
fi
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}
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mgorny |
1.8 |
# @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=${MULTIBUILD_VARIANT}
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multilib_toolchain_setup "${ABI}"
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"${@}"
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}
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mgorny |
1.1 |
# @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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mgorny |
1.8 |
debug-print-function ${FUNCNAME} "${@}"
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mgorny |
1.1 |
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mgorny |
1.8 |
local MULTIBUILD_VARIANTS=( $(multilib_get_enabled_abis) )
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multibuild_foreach_variant _multilib_multibuild_wrapper "${@}"
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mgorny |
1.1 |
}
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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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mgorny |
1.8 |
debug-print-function ${FUNCNAME} "${@}"
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mgorny |
1.1 |
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mgorny |
1.8 |
local MULTIBUILD_VARIANTS=( $(multilib_get_enabled_abis) )
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multibuild_parallel_foreach_variant _multilib_multibuild_wrapper "${@}"
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mgorny |
1.1 |
}
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mgorny |
1.2 |
# @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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mgorny |
1.4 |
[[ -d ${ED}usr/include ]] && \
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mgorny |
1.2 |
find "${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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mgorny |
1.1 |
_MULTILIB_BUILD=1
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fi
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