# Copyright 1999-2017 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 EAPI="6" inherit flag-o-matic multilib savedconfig toolchain-funcs versionator if [[ ${PV} == "9999" ]] ; then EGIT_REPO_URI="git://uclibc-ng.org/git/uclibc-ng" inherit git-r3 MY_P=uclibc-ng-${PV} else MY_P=uClibc-ng-${PV} fi DESCRIPTION="C library for developing embedded Linux systems" HOMEPAGE="http://www.uclibc-ng.org/" if [[ ${PV} != "9999" ]] ; then PATCH_VER="" SRC_URI="http://downloads.uclibc-ng.org/releases/${PV}/${MY_P}.tar.bz2" #KEYWORDS="-* ~amd64 ~arm ~mips ~ppc ~x86" KEYWORDS="-* amd64 ~arm ppc x86" fi LICENSE="LGPL-2" SLOT="0" IUSE="debug hardened iconv ipv6 rpc symlink-compat crosscompile_opts_headers-only" RESTRICT="strip" # 1) We can't upgrade from uclibc to uclibc-ng via a soft blocker since portage # will delete the ld.so sym link prematurely and break the system. So we # will hard block and give manual migration instructions. # 2) Currently uclibc and uclibc-ng's iconv are in bad shape. We've been using # the breakout library. The disadvantage here is that we have to sprinkle # LDFAGS=-liconv on build systems that need to link against libiconv. RDEPEND=" !!sys-libs/uclibc iconv? ( dev-libs/libiconv )" S=${WORKDIR}/${MY_P} export CBUILD=${CBUILD:-${CHOST}} export CTARGET=${CTARGET:-${CHOST}} if [[ ${CHOST} == ${CTARGET} ]] ; then if [[ ${CATEGORY} == cross-* ]] ; then export CTARGET=${CATEGORY#cross-} fi fi is_crosscompile() { [[ ${CHOST} != ${CTARGET} ]] } alt_build_kprefix() { if [[ ${CBUILD} == ${CHOST} && ${CHOST} == ${CTARGET} ]] ; then echo /usr/include else echo /usr/${CTARGET}/usr/include fi } just_headers() { use crosscompile_opts_headers-only && is_crosscompile } uclibc_endian() { # XXX: this wont work for a toolchain which is bi-endian, but we # dont have any such thing at the moment, so not a big deal touch "${T}"/endian.s $(tc-getAS ${CTARGET}) "${T}"/endian.s -o "${T}"/endian.o case $(file "${T}"/endian.o) in *" MSB "*) echo "BIG";; *" LSB "*) echo "LITTLE";; *) echo "NFC";; esac rm -f "${T}"/endian.{s,o} } kconfig_q_opt() { local flag=$1; shift case ${flag} in y|n) ;; *) flag=$(usex ${flag} y n) ;; esac local var="defs_${flag}" eval "${var}+=( $* )" } get_opt() { ( unset ${1} . ${2:-"${S}"/.config} echo ${!1} ) } make_oldconfig() { yes "" 2>/dev/null | emake -s oldconfig >/dev/null } make_config() { restore_config .config if [ -f .config ]; then make_oldconfig return 0 else ewarn "Could not locate user configfile, so we will save a default one" fi emake ARCH=$1 defconfig >/dev/null local defs_{y,n} # These are forced off defs_n=( DOASSERTS DODEBUG_PT HAS_NO_THREADS PROPOLICE_BLOCK_ABRT SSP_QUICK_CANARY SUPPORT_LD_DEBUG_EARLY UCLIBC_HAS_CTYPE_UNSAFE UCLIBC_HAS_LOCALE UCLIBC_HAS_SSP_COMPAT ) # These are forced on defs_y=( COMPAT_ATEXIT DO_C99_MATH DO_XSI_MATH FORCE_SHAREABLE_TEXT_SEGMENTS LDSO_GNU_HASH_SUPPORT LDSO_PRELINK_SUPPORT LDSO_PRELOAD_FILE_SUPPORT LDSO_RUNPATH_OF_EXECUTABLE LDSO_STANDALONE_SUPPORT MALLOC_GLIBC_COMPAT PROPOLICE_BLOCK_SEGV PTHREADS_DEBUG_SUPPORT UCLIBC_HAS_ARC4RANDOM UCLIBC_HAS_BACKTRACE UCLIBC_HAS_BSD_RES_CLOSE UCLIBC_HAS_CONTEXT_FUNCS UCLIBC_HAS_CTYPE_CHECKED UCLIBC_HAS_EXTRA_COMPAT_RES_STATE UCLIBC_HAS_FENV UCLIBC_HAS_FOPEN_CLOSEEXEC_MODE UCLIBC_HAS_FOPEN_EXCLUSIVE_MODE UCLIBC_HAS_FOPEN_LARGEFILE_MODE UCLIBC_HAS_FTS UCLIBC_HAS_FTW UCLIBC_HAS_GETPT UCLIBC_HAS_GLIBC_CUSTOM_PRINTF UCLIBC_HAS_GLIBC_CUSTOM_STREAMS UCLIBC_HAS_GNU_GLOB UCLIBC_HAS_HEXADECIMAL_FLOATS UCLIBC_HAS_LIBNSL_STUB UCLIBC_HAS_LIBRESOLV_STUB UCLIBC_HAS_LIBUTIL UCLIBC_HAS_NFTW UCLIBC_HAS_OBSOLETE_BSD_SIGNAL UCLIBC_HAS_OBSTACK UCLIBC_HAS_PRINTF_M_SPEC UCLIBC_HAS_PROGRAM_INVOCATION_NAME UCLIBC_HAS_RESOLVER_SUPPORT UCLIBC_HAS_SHA256_CRYPT_IMPL UCLIBC_HAS_SHA512_CRYPT_IMPL UCLIBC_HAS_SSP UCLIBC_HAS_STUBS UCLIBC_HAS_SYS_ERRLIST UCLIBC_HAS_SYS_SIGLIST UCLIBC_HAS_THREADS_NATIVE UCLIBC_HAS_TZ_FILE_READ_MANY UCLIBC_HAS_UTMP UCLIBC_HAS_UTMPX UCLIBC_HAS_WCHAR UCLIBC_HAS_WORDEXP UCLIBC_NTP_LEGACY UCLIBC_SUPPORT_AI_ADDRCONFIG UCLIBC_SUSV2_LEGACY UCLIBC_SUSV3_LEGACY UCLIBC_SUSV3_LEGACY_MACROS UCLIBC_SUSV4_LEGACY UCLIBC_USE_NETLINK ) sed -i -e '/ARCH_.*_ENDIAN/d' .config kconfig_q_opt y "ARCH_WANTS_$(uclibc_endian)_ENDIAN" kconfig_q_opt debug DODEBUG kconfig_q_opt debug SUPPORT_LD_DEBUG kconfig_q_opt debug UCLIBC_HAS_PROFILING kconfig_q_opt ipv6 UCLIBC_HAS_IPV6 kconfig_q_opt rpc UCLIBC_HAS_RPC kconfig_q_opt rpc UCLIBC_HAS_FULL_RPC kconfig_q_opt rpc UCLIBC_HAS_REENTRANT_RPC kconfig_q_opt hardened UCLIBC_BUILD_NOEXECSTACK kconfig_q_opt hardened UCLIBC_BUILD_NOW kconfig_q_opt hardened UCLIBC_BUILD_PIE kconfig_q_opt hardened UCLIBC_BUILD_RELRO kconfig_q_opt hardened UCLIBC_BUILD_SSP local count def for count in 1 2 ; do # Run twice as some config opts depend on others being enabled first. for def in ${defs_y[@]} ; do sed -i -e "s|.*\<${def}\>.*set|${def}=y|g" .config done for def in ${defs_n[@]} ; do sed -i -e "s|${def}=y|# ${def} is not set|g" .config done make_oldconfig done einfo "Enabled options:" for def in ${defs_y[@]} ; do einfo " " $(grep "^${def}=y" .config || echo "could not find ${def}") done einfo "Disabled options:" for def in ${defs_n[@]} ; do einfo " " $(grep "^# ${def} is not set" .config || echo "could not find ${def}") done # setup build and run paths sed -i \ -e "/^CROSS_COMPILER_PREFIX/s|=.*|=\"${CTARGET}-\"|" \ -e "/^KERNEL_HEADERS/s|=.*|=\"$(alt_build_kprefix)\"|" \ -e "/^SHARED_LIB_LOADER_PREFIX/s|=.*|=\"/$(get_libdir)\"|" \ -e "/^DEVEL_PREFIX/s|=.*|=\"/usr\"|" \ -e "/^RUNTIME_PREFIX/s|=.*|=\"/\"|" \ -e "/^UCLIBC_EXTRA_CFLAGS/s|=.*|=\"${UCLIBC_EXTRA_CFLAGS}\"|" \ .config || die make_oldconfig } pkg_setup() { # Make sure our CHOST is a uclibc toolchain for native compiling if [[ ${CHOST} == ${CTARGET} ]]; then case ${CHOST} in *-uclinux*|*-uclibc*) ;; *) die "Use sys-devel/crossdev to build a uclibc toolchain" ;; esac fi # uClibc-ng doesn't carry old Linux threads, and since we force # threading our only choice is NPTL which requires i486 and later. [[ ${CTARGET} == i386* ]] && die "i386 can't support Native Posix Threads (NPTL)." } src_prepare() { local version subversion extraversion # uclibc-ng tries to create a two sym link with ld.so, # ld-uClibc.so.{0,MAJOR_VERSION} -> ld-uClibc-<version>.so # where MAJOR_VERSION != 0 indicates the ABI verison. # We want to get rid of this and just have ABI = 0. eapply "${FILESDIR}"/uclibc-compat-r1.patch # We need to change the major.minor.sublevel of uclibc-ng. # Upstream sets MAJOR_VERSION = 1 which breaks runtime linking. # If we really want the ABI bump, we'll have to hack the gcc # spec file and change the '*link:' rule. version=( $(get_version_components) ) if [[ -z ${version[1]} ]]; then subversion=0 extraversion=0 else subversion=${version[1]} if [[ -z ${version[2]} ]]; then extraversion=0 else extraversion=.${version[2]} fi fi sed -i \ -e "/^MAJOR_VERSION/s|:=.*|:= 0|" \ -e "/^MINOR_VERSION/s|:=.*|:= ${version[0]}|" \ -e "/^SUBLEVEL/s|:=.*|:= ${subversion}|" \ -e "/^EXTRAVERSION/s|:=.*|:= ${extraversion}|" \ Rules.mak || die eapply_user } src_configure() { # Map our toolchain arch name to the name expected by uClibc-ng. local target=$(tc-arch) case ${target} in amd64) target="x86_64";; arm) target="arm";; mips) target="mips";; ppc) target="powerpc";; x86) target="i386";; esac # Do arch specific configuration by changing the defaults in # extra/Configs/Config.<arch>. If these are not overridden # by an save .config, they will be selected by default. # For i386, i486, i586 and i686 local cpu if [[ ${target} == "i386" ]]; then [[ ${CTARGET} == i[456]86* ]] && cpu="${CTARGET:1:1}86" sed -i -e "s|default CONFIG_686|default CONFIG_${cpu:-486}|" \ extra/Configs/Config.i386 || die fi # For arm if [[ ${target} == "arm" ]]; then sed -i -e '/Build for EABI/a \\tdefault y' extra/Configs/Config.arm fi # We set HOSTCC to the proper tuple rather than just 'gcc' sed -i -e "s|^HOSTCC.*=.*|HOSTCC=$(tc-getBUILD_CC)|" Rules.mak make_config ${target} einfo einfo "Runtime Prefix: /" einfo "Devel Prefix: /usr" einfo "Kernel Prefix: $(alt_build_kprefix)" einfo "CBUILD: ${CBUILD}" einfo "CHOST: ${CHOST}" einfo "CTARGET: ${CTARGET}" einfo "ABI: ${ABI}" einfo "ENDIAN: $(uclibc_endian)" einfo } src_compile() { emake headers just_headers && return 0 emake if is_crosscompile ; then emake -C utils hostutils else emake utils fi } src_test() { is_crosscompile && return 0 # assert test fails on pax/grsec enabled kernels # normal vfork test fails in sandbox (both glibc/uclibc) emake UCLIBC_ONLY=1 check } src_install() { local sysroot=${D} is_crosscompile && sysroot+="/usr/${CTARGET}" local target="install" just_headers && target="install_headers" emake DESTDIR="${sysroot}" ${target} save_config .config # remove files coming from kernel-headers rm -rf "${sysroot}"/usr/include/{linux,asm*} # Make sure we install the sys-include symlink so that when # we build a 2nd stage cross-compiler, gcc finds the target # system headers correctly. See gcc/doc/gccinstall.info if is_crosscompile ; then dosym usr/include /usr/${CTARGET}/sys-include if ! just_headers && [[ -n $(get_opt HAVE_SHARED) ]] ; then newbin utils/ldconfig.host ${CTARGET}-ldconfig newbin utils/ldd.host ${CTARGET}-ldd fi return 0 fi if use symlink-compat; then dosym libc.so.0 "${DESTDIR}"/lib/libcrypt.so.0 dosym libc.so.0 "${DESTDIR}"/lib/libdl.so.0 dosym libc.so.0 "${DESTDIR}"/lib/libm.so.0 dosym libc.so.0 "${DESTDIR}"/lib/libpthread.so.0 dosym libc.so.0 "${DESTDIR}"/lib/librt.so.0 dosym libc.so.0 "${DESTDIR}"/lib/libresolv.so.0 dosym libc.so.0 "${DESTDIR}"/lib/libubacktrace.so.0 dosym libc.so.0 "${DESTDIR}"/lib/libutil.so.0 fi emake DESTDIR="${D}" install_utils dobin extra/scripts/getent dodoc README docs/*.txt } pkg_postinst() { is_crosscompile && return 0 if [ ! -e "${ROOT}"/etc/TZ ] ; then ewarn "Please remember to set your timezone in /etc/TZ" mkdir -p "${ROOT}"/etc echo "UTC" > "${ROOT}"/etc/TZ fi [ "${ROOT}" != "/" ] && return 0 # update cache before reloading init ldconfig # reload init ... /sbin/telinit U 2>/dev/null }