+++ /dev/null
-# Copyright 1999-2018 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-# Robin H. Johnson <robbat2@gentoo.org>, 12 Nov 2007:
-# This still needs major work.
-# But it is significently better than the previous version.
-# In that it will now build on biarch systems, such as ppc64-32ul.
-
-# NOTES:
-# ======
-# We need to bring in the kernel sources seperately
-# Because they have to be configured in a way that differs from the copy in
-# /usr/src/. The sys-kernel/linux-headers are too stripped down to use
-# unfortunately.
-# This will be able to go away once the klibc author updates his code
-# to build again the headers provided by the kernel's 'headers_install' target.
-
-EAPI=6
-K_TARBALL_SUFFIX="xz"
-
-inherit eutils toolchain-funcs flag-o-matic
-
-DESCRIPTION="A minimal libc subset for use with initramfs"
-HOMEPAGE="https://www.zytor.com/mailman/listinfo/klibc/ https://www.kernel.org/pub/linux/libs/klibc/"
-KV_MAJOR="4" KV_MINOR="x" KV_SUB="4"
-PKV_EXTRA=""
-if [[ ${PKV_EXTRA} ]]; then
- if [[ ${KV_MAJOR} == 2 ]]; then
- PKV="${KV_MAJOR}.${KV_MINOR}.$((${KV_SUB}+1))-${PKV_EXTRA}"
- else
- PKV="${KV_MAJOR}.$((${KV_SUB}+1))-${PKV_EXTRA}"
- fi
- PATCH_URI="mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/patch-${PKV}.${K_TARBALL_SUFFIX}"
-fi
-if [[ ${KV_MAJOR} == 2 ]]; then
- OKV="${KV_MAJOR}.${KV_MINOR}.${KV_SUB}"
-else
- OKV="${KV_MAJOR}.${KV_SUB}"
-fi
-KERNEL_URI="
- mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/linux-${OKV}.tar.${K_TARBALL_SUFFIX}
- mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/testing/linux-${OKV}.tar.${K_TARBALL_SUFFIX}"
-DEBIAN_PV=2.0.4
-DEBIAN_PR=9
-DEBIAN_A="${PN}_${DEBIAN_PV}-${DEBIAN_PR}.debian.tar.xz"
-SRC_URI="
- mirror://kernel/linux/libs/klibc/${PV:0:3}/${P}.tar.${K_TARBALL_SUFFIX}
- mirror://debian/pool/main/k/klibc/${DEBIAN_A}
- ${PATCH_URI}
- ${KERNEL_URI}"
-
-LICENSE="|| ( GPL-2 LGPL-2 )"
-KEYWORDS="~alpha amd64 ~arm ia64 -mips ~ppc ~ppc64 ~sparc x86"
-SLOT="0"
-IUSE="debug test custom-cflags"
-
-RDEPEND="dev-lang/perl"
-DEPEND="${RDEPEND}
- sys-devel/bc"
-
-KS="${WORKDIR}/linux-${OKV}"
-
-# Klibc has no PT_GNU_STACK support, so scanning for execstacks is moot
-QA_EXECSTACK="*"
-# Do not strip
-RESTRICT="strip"
-
-kernel_asm_arch() {
- a="${1:${ARCH}}"
- case ${a} in
- # Merged arches
- x86) echo i386 ;; # for build on x86 userspace & 64bit kernel
- amd64) echo x86 ;;
- ppc*) echo powerpc ;;
- # Non-merged
- alpha|arm|arm64|ia64|m68k|mips|sh|sparc*) echo ${1} ;;
- *) die "TODO: Update the code for your asm-ARCH symlink" ;;
- esac
-}
-
-# For a given Gentoo ARCH,
-# specify the kernel defconfig most relevant
-kernel_defconfig() {
- a="${1:${ARCH}}"
- # most, but not all arches have a sanely named defconfig
- case ${a} in
- ppc64) echo ppc64_defconfig ;;
- ppc) echo pmac32_defconfig ;;
- sh*) die "TODO: Your arch is not supported by the klibc ebuild. Please suggest a defconfig in a bug." ;;
- *) echo defconfig ;;
- esac
-}
-
-src_unpack() {
- unpack linux-${OKV}.tar.${K_TARBALL_SUFFIX} ${P}.tar.${K_TARBALL_SUFFIX} ${DEBIAN_A}
-}
-
-PATCHES=(
- # Build interp.o with EXTRA_KLIBCAFLAGS (.S source)
- "${FILESDIR}"/${PN}-1.4.11-interp-flags.patch
- # Fix usage of -s, bug #201006
- "${FILESDIR}"/klibc-1.5.7-strip-fix-dash-s.patch
- # The inline definition from sys/stat.h does not seem to get used
- # So just copy it to make this compile for now
- "${FILESDIR}"/klibc-2.0.2-mkfifo.patch
- # Newer kernels have some headers in the uapi dir
- "${FILESDIR}"/klibc-2.0.3-kernel-uapi.patch
-)
-
-src_prepare() {
- [[ ${PKV} ]] && eapply "${DISTDIR}"/patch-${PKV}.${K_TARBALL_SUFFIX}
-
- # Symlink /usr/src/linux to ${S}/linux
- ln -snf "${KS}" linux
- #ln -snf "/usr" linux
-
- # Borrow the debian fixes too
- for p in $(<"${WORKDIR}"/debian/patches/series) ; do
- PATCHES+=( "${WORKDIR}/debian/patches/${p}" )
- done
-
- default
-}
-
-# klibc has it's own ideas of arches
-# They reflect userspace strictly.
-# This functions maps from a Gentoo ARCH, to an arch that klibc expects
-# Look at klibc-${S}/usr/klibc/arch for a list of these arches
-klibc_arch() {
- a="${1:${ARCH}}"
- case ${a} in
- amd64) echo x86_64;;
- mips) die 'TODO: Use the $ABI' ;;
- x86) echo i386;;
- *) echo ${a} ;;
- esac
-}
-
-src_compile() {
- local myargs="all"
- local myARCH="${ARCH}" myABI="${ABI}"
- # TODO: For cross-compiling
- # You should set ARCH and ABI here
- CC="$(tc-getCC)"
- LD="$(tc-getLD)"
- HOSTCC="$(tc-getBUILD_CC)"
- HOSTLD="$(tc-getBUILD_LD)"
- KLIBCARCH="$(klibc_arch ${ARCH})"
- KLIBCASMARCH="$(kernel_asm_arch ${ARCH})"
- libdir="$(get_libdir)"
- # This should be the defconfig corresponding to your userspace!
- # NOT your kernel. PPC64-32ul would choose 'ppc' for example.
- defconfig=$(kernel_defconfig ${ARCH})
- unset ABI ARCH # Unset these, because they interfere
- unset KBUILD_OUTPUT # we are using a private copy
-
- cd "${KS}"
- emake ${defconfig} CC="${CC}" HOSTCC="${HOSTCC}" ARCH="${KLIBCASMARCH}" || die "No defconfig"
- if [[ "${KLIBCARCH/arm}" != "${KLIBCARCH}" ]] && \
- [[ "${CHOST/eabi}" != "${CHOST}" ]]; then
- # The delete and insert are seperate statements
- # so that they are reliably used.
- sed -i \
- -e '/CONFIG_AEABI/d' \
- -e '1iCONFIG_AEABI=y' \
- -e '/CONFIG_OABI_COMPAT/d' \
- -e '1iCONFIG_OABI_COMPAT=y' \
- -e '1iCONFIG_ARM_UNWIND=y' \
- "${KS}"/.config \
- "${S}"/defconfig
- fi
- emake prepare CC="${CC}" HOSTCC="${HOSTCC}" ARCH="${KLIBCASMARCH}" || die "Failed to prepare kernel sources for header usage"
-
- cd "${S}"
-
- use debug && myargs="${myargs} V=1"
- use test && myargs="${myargs} test"
- append-ldflags -z noexecstack
- append-flags -nostdlib
-
- emake \
- EXTRA_KLIBCAFLAGS="-Wa,--noexecstack" \
- EXTRA_KLIBCLDFLAGS="-z noexecstack" \
- HOSTLDFLAGS="-z noexecstack" \
- KLIBCOPTFLAGS='-nostdlib' \
- HOSTCC="${HOSTCC}" CC="${CC}" \
- HOSTLD="${HOSTLD}" LD="${LD}" \
- INSTALLDIR="/usr/${libdir}/klibc" \
- KLIBCARCH=${KLIBCARCH} \
- KLIBCASMARCH=${KLIBCASMARCH} \
- SHLIBDIR="/${libdir}" \
- libdir="/usr/${libdir}" \
- mandir="/usr/share/man" \
- T="${T}" \
- $(use custom-cflags || echo SKIP_)HOSTCFLAGS="${CFLAGS}" \
- $(use custom-cflags || echo SKIP_)HOSTLDFLAGS="${LDFLAGS}" \
- $(use custom-cflags || echo SKIP_)KLIBCOPTFLAGS="${CFLAGS}" \
- ${myargs} || die "Compile failed!"
-
- #SHLIBDIR="/${libdir}" \
-
- ARCH="${myARCH}" ABI="${myABI}"
-}
-
-src_install() {
- local myargs
- local myARCH="${ARCH}" myABI="${ABI}"
- # TODO: For cross-compiling
- # You should set ARCH and ABI here
- CC="$(tc-getCC)"
- HOSTCC="$(tc-getBUILD_CC)"
- KLIBCARCH="$(klibc_arch ${ARCH})"
- KLIBCASMARCH="$(kernel_asm_arch ${ARCH})"
- libdir="$(get_libdir)"
- # This should be the defconfig corresponding to your userspace!
- # NOT your kernel. PPC64-32ul would choose 'ppc' for example.
- defconfig=$(kernel_defconfig ${ARCH})
-
- use debug && myargs="${myargs} V=1"
-
- local klibc_prefix
- if tc-is-cross-compiler ; then
- klibc_prefix=$("${S}/klcc/${KLIBCARCH}-klcc" -print-klibc-prefix)
- else
- klibc_prefix=$("${S}/klcc/klcc" -print-klibc-prefix)
- fi
-
- unset ABI ARCH # Unset these, because they interfere
- unset KBUILD_OUTPUT # we are using a private copy
-
- emake \
- EXTRA_KLIBCAFLAGS="-Wa,--noexecstack" \
- EXTRA_KLIBCLDFLAGS="-z noexecstack" \
- HOSTLDFLAGS="-z noexecstack" \
- KLIBCOPTFLAGS='-nostdlib' \
- HOSTCC="${HOSTCC}" CC="${CC}" \
- HOSTLD="${HOSTLD}" LD="${LD}" \
- INSTALLDIR="/usr/${libdir}/klibc" \
- INSTALLROOT="${D}" \
- KLIBCARCH=${KLIBCARCH} \
- KLIBCASMARCH=${KLIBCASMARCH} \
- SHLIBDIR="/${libdir}" \
- libdir="/usr/${libdir}" \
- mandir="/usr/share/man" \
- T="${T}" \
- $(use custom-cflags || echo SKIP_)HOSTCFLAGS="${CFLAGS}" \
- $(use custom-cflags || echo SKIP_)HOSTLDFLAGS="${LDFLAGS}" \
- $(use custom-cflags || echo SKIP_)KLIBCOPTFLAGS="${CFLAGS}" \
- ${myargs} \
- install || die "Install failed!"
-
- #SHLIBDIR="/${libdir}" \
-
- # klibc doesn't support prelinking, so we need to mask it
- cat > "${T}/70klibc" <<-EOF
- PRELINK_PATH_MASK="/usr/${libdir}/klibc"
- EOF
-
- doenvd "${T}"/70klibc
-
- # Fix the permissions (bug #178053) on /usr/${libdir}/klibc/include
- # Actually I have no idea, why the includes have those weird-ass permissions
- # on a particular system, might be due to inherited permissions from parent
- # directory
- # NOTE: This totally violates sandbox <asturm@gentoo.org>
- # find "${D}"/usr/${libdir}/klibc/include | xargs chmod o+rX
- find "${D}"/usr/${libdir}/klibc/include -type f \
- \( -name '.install' -o -name '..install.cmd' \) -delete || die
-
- # Hardlinks becoming copies
- for x in gunzip zcat ; do
- rm -f "${D}/${klibc_prefix}/bin/${x}"
- dosym gzip "${klibc_prefix}/bin/${x}"
- done
-
- # Restore now, so we can use the tc- functions
- ARCH="${myARCH}" ABI="${myABI}"
- if ! tc-is-cross-compiler ; then
- cd "${S}"
- insinto /usr/share/aclocal
- doins contrib/klibc.m4
-
- dodoc README usr/klibc/CAVEATS
- docinto gzip; dodoc usr/gzip/README
- fi
-
- # Fix up the symlink
- # Mainly for merged arches
- linkname="${D}/usr/${libdir}/klibc/include/asm"
- if [ -L "${linkname}" ] && [ ! -e "${linkname}" ] ; then
- ln -snf asm-${KLIBCASMARCH} "${linkname}"
- fi
-}
-
-src_test() {
- if ! tc-is-cross-compiler ; then
- cd "${S}"/usr/klibc/tests
- ALL_TESTS="$(ls *.c |sed 's,\.c$,,g')"
- BROKEN_TESTS="fcntl fnmatch testrand48"
- failed=0
- for t in $ALL_TESTS ; do
- if has $t $BROKEN_TESTS ; then
- echo "=== $t SKIP"
- else
- echo -n "=== $t "
- ./$t </dev/null >/dev/null
- rc=$?
- if [ $rc -eq 0 ]; then
- echo PASS
- else
- echo FAIL
- failed=1
- fi
- fi
- done
- [ $failed -ne 0 ] && die "Some tests failed."
- fi
-}
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