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# Copyright 1999-2011 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-libs/klibc/klibc-1.5.12.ebuild,v 1.4 2011/06/12 17:19:42 mattst88 Exp $
# 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
# unfortunetly.
# 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.
inherit eutils multilib toolchain-funcs
DESCRIPTION="A minimal libc subset for use with initramfs."
HOMEPAGE="http://www.zytor.com/mailman/listinfo/klibc"
KV_MAJOR="2" KV_MINOR="6" KV_SUB="23"
OKV="${KV_MAJOR}.${KV_MINOR}.${KV_SUB}"
PKV="${KV_MAJOR}.${KV_MINOR}.$((${KV_SUB}+1))-rc7"
PATCH_URI="mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/patch-${PKV}.bz2"
KERNEL_URI="mirror://kernel/linux/kernel/v${KV_MAJOR}.${KV_MINOR}/testing/linux-${OKV}.tar.bz2"
SRC_URI="
mirror://kernel/linux/libs/klibc/${P}.tar.bz2
mirror://kernel/linux/libs/klibc/Testing/${P}.tar.bz2
${PATCH_URI}
${KERNEL_URI}"
LICENSE="|| ( GPL-2 LGPL-2 )"
KEYWORDS="~amd64 -mips ~ppc ~x86"
SLOT="0"
IUSE="debug"
DEPEND="dev-lang/perl"
RDEPEND="${DEPEND}"
KS="${WORKDIR}/linux-${OKV}"
# Klibc has no PT_GNU_STACK support, so scanning for execstacks is moot
QA_EXECSTACK="*"
# Do not strip
RESTRICT="strip"
src_unpack() {
unpack linux-${OKV}.tar.bz2 ${P}.tar.bz2
EPATCH_OPTS="-d ${KS} -p1" epatch "${DISTDIR}"/patch-${PKV}.bz2
cd "${S}"
# Symlink /usr/src/linux to ${S}/linux
ln -snf "${KS}" linux
#ln -snf "/usr" linux
# Build interp.o with EXTRA_KLIBCAFLAGS (.S source)
epatch "${FILESDIR}"/${PN}-1.4.11-interp-flags.patch
# Fixes for sparc and ppc
epatch "${FILESDIR}"/${PN}-1.5-sigaction.patch
# Fix the asm-ppc vs. asm-powerpc issue, bug #196521
epatch "${FILESDIR}"/${PN}-1.5.11-klibcasmarch.patch
# Fix usage of -s, bug #201006
epatch "${FILESDIR}"/klibc-1.5.7-strip-fix-dash-s.patch
# bug 229525, usr/include/arch/x86_64/sys/io.h has undefined variables
epatch "${FILESDIR}"/${PN}-1.5.11-x86_64-io.h-return.diff
}
# For a given Gentoo ARCH,
# specify the kernel defconfig most relevant
kernel_defconfig() {
a="${1:${ARCH}}"
# most, but not all arches have a sanely named defconfig
case ${a} in
ppc64) echo ppc64_defconfig ;;
ppc) echo pmac32_defconfig ;;
arm*|sh*) die "TODO: Your arch is not supported by the klibc ebuild. Please suggest a defconfig in a bug." ;;
*) echo defconfig ;;
esac
}
# klibc has it's own ideas of arches
# They reflect userspace strictly.
# This functions maps from a Gentoo ARCH, to an arch that klibc expects
# Look at klibc-${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 ${a} ;;
esac
}
kernel_asm_arch() {
a="${1:${ARCH}}"
case ${a} in
# Merged arches
x86|amd64) echo x86 ;;
ppc*) echo powerpc ;;
# Non-merged
alpha|arm|ia64|m68k|mips|sh|sparc*) echo ${1} ;;
*) die "TODO: Update the code for your asm-ARCH symlink" ;;
esac
}
src_compile() {
local myargs
local myARCH="${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 ${ARCH})
unset ABI ARCH # Unset these, because they interfere
unset KBUILD_OUTPUT # we are using a private copy
cd "${KS}"
emake ${defconfig} || die "No defconfig"
emake prepare || die "Failed to prepare kernel sources for header usage"
cd "${S}"
use debug && myargs="${myargs} V=1"
emake \
EXTRA_KLIBCAFLAGS="-Wa,--noexecstack" \
EXTRA_KLIBCLDFLAGS="-z,noexecstack" \
HOSTCC="${HOSTCC}" CC="${CC}" \
INSTALLDIR="/usr/${libdir}/klibc" \
KLIBCARCH=${KLIBCARCH} \
KLIBCASMARCH=${KLIBCASMARCH} \
SHLIBDIR="/${libdir}" \
libdir="/usr/${libdir}" \
mandir="/usr/share/man" \
${myargs} || die "Compile failed!"
#SHLIBDIR="/${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/${KLIBCARCH}-klcc" -print-klibc-prefix)
else
klibc_prefix=$("${S}/klcc/klcc" -print-klibc-prefix)
fi
unset ABI ARCH # Unset these, because they interfere
unset KBUILD_OUTPUT # we are using a private copy
emake \
EXTRA_KLIBCAFLAGS="-Wa,--noexecstack" \
EXTRA_KLIBCLDFLAGS="-z,noexecstack" \
HOSTCC="${HOSTCC}" CC="${CC}" \
INSTALLDIR="/usr/${libdir}/klibc" \
INSTALLROOT="${D}" \
KLIBCARCH=${KLIBCARCH} \
KLIBCASMARCH=${KLIBCASMARCH} \
SHLIBDIR="/${libdir}" \
libdir="/usr/${libdir}" \
mandir="/usr/share/man" \
${myargs} \
install || die "Install failed!"
#SHLIBDIR="/${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
find "${D}"/usr/${libdir}/klibc/include | xargs chmod o+rX
# 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 usr/klibc/README
newdoc usr/klibc/arch/README README.klibc.arch
docinto dash; newdoc usr/dash/README.klibc README
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
}
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