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403 lines
10 KiB
403 lines
10 KiB
# Copyright 1999-2020 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI="7"
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inherit flag-o-matic multilib savedconfig toolchain-funcs
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if [[ ${PV} == "9999" ]] ; then
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EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng"
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inherit git-r3
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MY_P=uclibc-ng-${PV}
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else
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MY_P=uClibc-ng-${PV}
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fi
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DESCRIPTION="C library for developing embedded Linux systems"
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HOMEPAGE="https://uclibc-ng.org/"
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if [[ ${PV} != "9999" ]] ; then
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PATCH_VER=""
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SRC_URI="https://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2"
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KEYWORDS="-* ~amd64 ~arm ~mips ~ppc ~x86"
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fi
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LICENSE="LGPL-2"
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SLOT="0"
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IUSE="debug hardened iconv ipv6 symlink-compat headers-only"
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# tests fail due to unusual makefile
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RESTRICT="strip test"
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# 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage
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# will delete the ld.so sym link prematurely and break the system. So we
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# will hard block and give manual migration instructions.
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# 2) Currently uclibc and uclibc-ng's iconv are in bad shape. We've been using
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# the breakout library. The disadvantage here is that we have to sprinkle
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# LDFAGS=-liconv on build systems that need to link against libiconv.
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RDEPEND="
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!!sys-libs/uclibc
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iconv? ( dev-libs/libiconv )"
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S=${WORKDIR}/${MY_P}
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export CBUILD=${CBUILD:-${CHOST}}
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export CTARGET=${CTARGET:-${CHOST}}
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if [[ ${CHOST} == ${CTARGET} ]] ; then
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if [[ ${CATEGORY} == cross-* ]] ; then
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export CTARGET=${CATEGORY#cross-}
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fi
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fi
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is_crosscompile() {
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[[ ${CHOST} != ${CTARGET} ]]
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}
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alt_build_kprefix() {
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if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then
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echo /usr/include
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else
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echo /usr/${CTARGET}/usr/include
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fi
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}
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just_headers() {
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use headers-only && is_crosscompile
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}
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uclibc_endian() {
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# XXX: this wont work for a toolchain which is bi-endian, but we
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# dont have any such thing at the moment, so not a big deal
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touch "${T}"/endian.s
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$(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o
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case $(file "${T}"/endian.o) in
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*" MSB "*) echo "BIG";;
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*" LSB "*) echo "LITTLE";;
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*) echo "NFC";;
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esac
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rm -f "${T}"/endian.{s,o}
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}
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kconfig_q_opt() {
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local flag=$1; shift
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case ${flag} in
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y|n) ;;
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*) flag=$(usex ${flag} y n) ;;
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esac
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local var="defs_${flag}"
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eval "${var}+=( $* )"
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}
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get_opt() {
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(
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unset ${1}
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. ${2:-"${S}"/.config}
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echo ${!1}
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)
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}
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make_oldconfig() {
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yes "" 2>/dev/null | emake -s oldconfig >/dev/null
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}
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make_config() {
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restore_config .config
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if [ -f .config ]; then
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make_oldconfig
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return 0
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else
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ewarn "Could not locate user configfile, so we will save a default one"
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fi
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emake ARCH=$1 defconfig >/dev/null
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local defs_{y,n}
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# These are forced off
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defs_n=(
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DOASSERTS
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DODEBUG_PT
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HAS_NO_THREADS
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PROPOLICE_BLOCK_ABRT
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SSP_QUICK_CANARY
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SUPPORT_LD_DEBUG_EARLY
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UCLIBC_HAS_CTYPE_UNSAFE
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UCLIBC_HAS_LOCALE
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LDSO_SAFE_RUNPATH
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)
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# These are forced on
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defs_y=(
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DO_C99_MATH
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DO_XSI_MATH
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FORCE_SHAREABLE_TEXT_SEGMENTS
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LDSO_GNU_HASH_SUPPORT
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LDSO_PRELOAD_FILE_SUPPORT
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LDSO_RUNPATH
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LDSO_RUNPATH_OF_EXECUTABLE
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LDSO_STANDALONE_SUPPORT
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PROPOLICE_BLOCK_SEGV
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PTHREADS_DEBUG_SUPPORT
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UCLIBC_HAS_ARC4RANDOM
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UCLIBC_HAS_BACKTRACE
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UCLIBC_HAS_BSD_RES_CLOSE
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UCLIBC_HAS_CONTEXT_FUNCS
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UCLIBC_HAS_CTYPE_CHECKED
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UCLIBC_HAS_EXTRA_COMPAT_RES_STATE
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UCLIBC_HAS_FENV
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UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE
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UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE
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UCLIBC_HAS_FOPEN_LARGEFILE_MODE
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UCLIBC_HAS_FTS
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UCLIBC_HAS_FTW
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UCLIBC_HAS_GETPT
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UCLIBC_HAS_GLIBC_CUSTOM_PRINTF
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UCLIBC_HAS_GLIBC_CUSTOM_STREAMS
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UCLIBC_HAS_GNU_GLOB
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UCLIBC_HAS_HEXADECIMAL_FLOATS
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UCLIBC_HAS_LIBUTIL
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UCLIBC_HAS_NFTW
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UCLIBC_HAS_OBSOLETE_BSD_SIGNAL
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UCLIBC_HAS_PRINTF_M_SPEC
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UCLIBC_HAS_PROGRAM_INVOCATION_NAME
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UCLIBC_HAS_RESOLVER_SUPPORT
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UCLIBC_HAS_SHA256_CRYPT_IMPL
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UCLIBC_HAS_SHA512_CRYPT_IMPL
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UCLIBC_HAS_SSP
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UCLIBC_HAS_STUBS
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UCLIBC_HAS_SYS_ERRLIST
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UCLIBC_HAS_SYS_SIGLIST
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UCLIBC_HAS_THREADS_NATIVE
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UCLIBC_HAS_TZ_FILE_READ_MANY
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UCLIBC_HAS_UTMP
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UCLIBC_HAS_UTMPX
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UCLIBC_HAS_WCHAR
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UCLIBC_HAS_WORDEXP
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UCLIBC_NTP_LEGACY
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UCLIBC_SUPPORT_AI_ADDRCONFIG
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UCLIBC_SUSV2_LEGACY
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UCLIBC_SUSV3_LEGACY
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UCLIBC_SUSV3_LEGACY_MACROS
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UCLIBC_SUSV4_LEGACY
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UCLIBC_USE_NETLINK
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)
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sed -i -e '/ARCH_.*_ENDIAN/d' .config
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kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN"
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kconfig_q_opt debug DODEBUG
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kconfig_q_opt debug SUPPORT_LD_DEBUG
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kconfig_q_opt debug UCLIBC_HAS_PROFILING
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kconfig_q_opt ipv6 UCLIBC_HAS_IPV6
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kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK
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kconfig_q_opt hardened UCLIBC_BUILD_NOW
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kconfig_q_opt hardened UCLIBC_BUILD_PIE
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kconfig_q_opt hardened UCLIBC_BUILD_RELRO
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kconfig_q_opt hardened UCLIBC_BUILD_SSP
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local count def
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for count in 1 2 ; do
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# Run twice as some config opts depend on others being enabled first.
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for def in ${defs_y[@]} ; do
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sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config
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done
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for def in ${defs_n[@]} ; do
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sed -i -e "s|${def}=y|# ${def} is not set|g" .config
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done
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make_oldconfig
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done
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einfo "Enabled options:"
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for def in ${defs_y[@]} ; do
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einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}")
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done
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einfo "Disabled options:"
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for def in ${defs_n[@]} ; do
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einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}")
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done
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# setup build and run paths
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sed -i \
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-e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \
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-e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \
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-e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \
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-e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \
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-e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \
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-e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \
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.config || die
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make_oldconfig
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}
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pkg_setup() {
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# Make sure our CHOST is a uclibc toolchain for native compiling
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if [[ ${CHOST} == ${CTARGET} ]]; then
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case ${CHOST} in
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*-uclinux*|*-uclibc*) ;;
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*) die "Use sys-devel/crossdev to build a uclibc toolchain" ;;
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esac
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fi
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# uClibc-ng doesn't carry old Linux threads, and since we force
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# threading our only choice is NPTL which requires i486 and later.
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[[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)."
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}
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src_prepare() {
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local version subversion extraversion
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# uclibc-ng tries to create a two sym link with ld.so,
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# ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so
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# where MAJOR_VERSION != 0 indicates the ABI verison.
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# We want to get rid of this and just have ABI = 0.
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eapply "${FILESDIR}"/uclibc-compat-r1.patch
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# We need to change the major.minor.sublevel of uclibc-ng.
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# Upstream sets MAJOR_VERSION = 1 which breaks runtime linking.
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# If we really want the ABI bump, we'll have to hack the gcc
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# spec file and change the '*link:' rule.
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version_0=$(ver_cut 1)
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version_1=$(ver_cut 2)
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version_2=$(ver_cut 3)
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if [[ -z ${version_1} ]]; then
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subversion=0
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extraversion=0
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else
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subversion=${version_1}
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if [[ -z ${version_2} ]]; then
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extraversion=0
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else
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extraversion=.${version_2}
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fi
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fi
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sed -i \
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-e "/^MAJOR_VERSION/s|:=.*|:= 0|" \
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-e "/^MINOR_VERSION/s|:=.*|:= ${version_0}|" \
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-e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \
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-e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \
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Rules.mak || die
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eapply_user
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}
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src_configure() {
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# Map our toolchain arch name to the name expected by uClibc-ng.
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local target=$(tc-arch)
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case ${target} in
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amd64) target="x86_64";;
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arm) target="arm";;
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mips) target="mips";;
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ppc) target="powerpc";;
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x86) target="i386";;
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esac
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# Do arch specific configuration by changing the defaults in
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# extra/Configs/Config.<arch>. If these are not overridden
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# by an save .config, they will be selected by default.
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# For i386, i486, i586 and i686
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local cpu
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if [[ ${target} == "i386" ]]; then
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[[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86"
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sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \
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extra/Configs/Config.i386 || die
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fi
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# For arm
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if [[ ${target} == "arm" ]]; then
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sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm
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fi
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# We set HOSTCC to the proper tuple rather than just 'gcc'
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sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak
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make_config ${target}
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einfo
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einfo "Runtime Prefix: /"
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einfo "Devel Prefix: /usr"
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einfo "Kernel Prefix: $(alt_build_kprefix)"
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einfo "CBUILD: ${CBUILD}"
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einfo "CHOST: ${CHOST}"
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einfo "CTARGET: ${CTARGET}"
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einfo "ABI: ${ABI}"
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einfo "ENDIAN: $(uclibc_endian)"
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einfo
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}
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src_compile() {
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emake headers
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just_headers && return 0
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emake
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if is_crosscompile ; then
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emake -C utils hostutils
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else
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emake utils
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fi
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}
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src_test() {
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is_crosscompile && return 0
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# assert test fails on pax/grsec enabled kernels
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# normal vfork test fails in sandbox (both glibc/uclibc)
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emake UCLIBC_ONLY=1 check
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}
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src_install() {
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local sysroot=${D}
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is_crosscompile && sysroot+="/usr/${CTARGET}"
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local target="install"
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just_headers && target="install_headers"
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emake DESTDIR="${sysroot}" ${target}
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save_config .config
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# remove files coming from kernel-headers
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rm -rf "${sysroot}"/usr/include/{linux,asm*}
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# Make sure we install the sys-include symlink so that when
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# we build a 2nd stage cross-compiler, gcc finds the target
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# system headers correctly. See gcc/doc/gccinstall.info
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if is_crosscompile ; then
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dosym usr/include /usr/${CTARGET}/sys-include
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if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then
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newbin utils/ldconfig.host ${CTARGET}-ldconfig
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newbin utils/ldd.host ${CTARGET}-ldd
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fi
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return 0
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fi
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if use symlink-compat; then
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dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0
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dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0
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dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0
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dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0
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dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0
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dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0
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dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0
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dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0
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fi
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emake DESTDIR="${D}" install_utils
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dobin extra/scripts/getent
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dodoc README docs/*.txt
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}
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pkg_postinst() {
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is_crosscompile && return 0
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if [ ! -e "${ROOT}"/etc/TZ ] ; then
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ewarn "Please remember to set your timezone in /etc/TZ"
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mkdir -p "${ROOT}"/etc
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echo "UTC" > "${ROOT}"/etc/TZ
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fi
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[ "${ROOT}" != "/" ] && return 0
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# update cache before reloading init
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ldconfig
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}
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