path: root/dev-libs/uclibc/uclibc-0.9.26-r8.ebuild

# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-libs/uclibc/uclibc-0.9.26-r8.ebuild,v 1.2 2004/11/11 01:06:15 solar Exp $

inherit eutils flag-o-matic gcc

# To make a new CVS_VER we do.
# wget -O - http://uclibc.org/downloads/snapshots/uClibc-`date +%Y%m%d`.tar.bz2 | tar jxf -
# tar jxf /usr/portage/distfiles/uClibc-0.9.26.tar.bz2
# diff -urN --exclude .cvsignore --exclude CVS uClibc-0.9.26 uClibc | bzip2 - > uClibc-0.9.26-cvs-update-`date +%Y%m%d`.patch.bz2
# rm -rf uClibc-0.9.26-cvs-update-`date +%Y%m%d`.patch.bz2  uClibc uClibc-0.9.26

MY_P="${P/ucl/uCl}"
CVS_VER="20041110"
PATCH_VER="1.2"
DESCRIPTION="C library for developing embedded Linux systems"
HOMEPAGE="http://www.uclibc.org/"
SRC_URI="http://www.kernel.org/pub/linux/libs/uclibc/${MY_P}.tar.bz2
	mirror://gentoo/${MY_P}-cvs-update-${CVS_VER}.patch.bz2
	mirror://gentoo/${MY_P}-patches-${PATCH_VER}.tar.bz2"

LICENSE="LGPL-2"
SLOT="0"
KEYWORDS="-*"
#KEYWORDS="~x86 ~ppc ~sparc ~mips ~arm"
IUSE="build hardened ipv6 static debug" # nls is not supported yet
RESTRICT="nostrip"

DEPEND="sys-devel/gcc"
RDEPEND=""
PROVIDE="virtual/glibc virtual/libc"

S=${WORKDIR}/${MY_P}

CPU_ARM="GENERIC_ARM ARM{610,710,720T,920T,922T,926T,_{SA110,SA1100,XSCALE}}"
CPU_MIPS="MIPS_ISA_{1,2,3,4,MIPS{32,64}}"
CPU_PPC=""
CPU_SH="SH{2,3,4,5}"
CPU_X86="GENERIC_386 {3,4,5,6}86 PENTIUM{II,III,4} K{6,7} ELAN CRUSOE WINCHIP{C6,2} CYRIXIII NEHEMIAH"
IUSE_UCLIBC_CPU="${CPU_ARM} ${CPU_MIPS} ${CPU_PPC} ${CPU_SH} ${CPU_X86}"
IUSE_UCLIBC_ENDIAN="LITTLE BIG"

check_cpu_opts() {
	local cpu_var="CPU_$(echo ${ARCH} | tr [a-z] [A-Z])"
	if [ -z "${UCLIBC_CPU}" ] ; then
		ewarn "You really should consider setting UCLIBC_CPU"
		ewarn "Otherwise, the build will be generic (read: slow)."
		ewarn "Available CPU options:"
		eval echo ${!cpu_var}
		export UCLIBC_CPU="${UCLIBC_CPU_DEFAULT}"
	else
		local cpu found=0
		for cpu in $(eval echo ${!cpu_var}) ; do
			[ "${UCLIBC_CPU}" = "${cpu}" ] && found=1 && break
		done
		if [ ${found} -eq 0 ] ; then
			ewarn "UCLIBC_CPU choice '${UCLIBC_CPU}' not supported"
			ewarn "Valid choices:"
			eval echo ${!cpu_var}
			die "pick a supported cpu type"
		fi
	fi

	if [ -z "${UCLIBC_ENDIAN}" ] ; then
		ewarn "You really should consider setting UCLIBC_ENDIAN"
		ewarn "Otherwise, the build may choose the wrong default."
		ewarn "Available CPU endians: little big"
		export UCLIBC_ENDIAN="${UCLIBC_ENDIAN_DEFAULT}"
	else
		export UCLIBC_ENDIAN="$(echo ${UCLIBC_ENDIAN} | tr [a-z] [A-Z])"
		if [ "${UCLIBC_ENDIAN}" != "LITTLE" -a "${UCLIBC_ENDIAN}" != "BIG" ] ; then
			die "UCLIBC_ENDIAN may only be 'little' or 'big'"
		fi
	fi
}

check_main_libc() {
	if [ "${CHOST/uclibc}" != "${CHOST}" ] ; then
		SYS_LIBC=uClibc
	else
		SYS_LIBC=glibc
	fi
	export SYS_LIBC
	echo
	einfo "We are building for ${SYS_LIBC} system library"
	echo
}

src_unpack() {
	unpack ${A}
	cd ${S}
	check_cpu_opts

	########## PATCHES ##########

	[ -n "${CVS_VER}" ] && \
		epatch ${DISTDIR}/${MY_P}-cvs-update-${CVS_VER}.patch.bz2

	cp ${FILESDIR}/0.9.26/ssp.c ${S}/libc/sysdeps/linux/common/ \
		|| die "failed to copy ssp.c to ${S}/libc/sysdeps/linux/common/"
	# gcc 3.4 nukes ssp without this patch
	[ "`gcc-major-version`" -eq "3" -a "`gcc-minor-version`" -ge "4" ] && \
		epatch ${FILESDIR}/0.9.26/uclibc-0.9.26-ssp-gcc34-after-frandom.patch

	if [ -n "${PATCH_VER}" ] ; then
		unpack ${MY_P}-patches-${PATCH_VER}.tar.bz2
		mv ${WORKDIR}/patch/*frandom* ${WORKDIR}/patch/exclude/
		# zdefs/main patches, not yet properly tested
		mv ${WORKDIR}/patch/*{zdefs,main}* ${WORKDIR}/patch/exclude/
		# needed for gcc-3.4 after frandom
		mv ${WORKDIR}/patch/*attribute* ${WORKDIR}/patch/exclude/
		epatch ${WORKDIR}/patch
		# for math functions (j2sdk/xorg-x11)
		#epatch ${WORKDIR}/patch/math
	fi

	# support archs which dont implement all syscalls
	[ -z "${CVS_VER}" ] \
		&& epatch ${FILESDIR}/${PV}/arm-fix-missing-syscalls.patch \
		|| epatch ${FILESDIR}/${PV}/uclibc-0.9.26-arm-dl-sysdep.patch

	# fixup for install perms
	sed -i -e "s:-fa:-dRf:g" Makefile

	########## CPU SELECTION ##########

	local target config_target
	case ${ARCH} in
		arm)	target="arm";		config_target="GENERIC_ARM";;
		mips)	target="mips";		config_target="MIPS_ISA_1";;
		ppc)	target="powerpc";	config_target="no cpu-specific options";;
		sh)	target="sh";		config_target="SH4";;
		x86)	target="i386";		config_target="GENERIC_386";;
		*)		die "${ARCH} lists no defaults :/";;
	esac
	sed -i -e "s:default TARGET_i386:default TARGET_${target}:" \
		extra/Configs/Config.in
	sed -i -e "s:default CONFIG_${config_target}:default CONFIG_${UCLIBC_CPU:-${config_target}}:" \
		extra/Configs/Config.${target}

	########## CONFIG SETUP ##########

	make defconfig >/dev/null || die "could not config"

	for def in UCLIBC_PROFILING DO{DEBUG,ASSERTS} SUPPORT_LD_DEBUG{,_EARLY} ; do
		sed -i -e "s:${def}=y:# ${def} is not set:" .config
	done
	if use debug ; then
		echo "SUPPORT_LD_DEBUG=y" >> .config
		echo "DODEBUG=y" >> .config
	fi

	sed -i -e 's:^ARCH_.*_ENDIAN=y::' .config
	echo "ARCH_${UCLIBC_ENDIAN}_ENDIAN=y" >> .config

	for def in DO_C99_MATH UCLIBC_HAS_{RPC,CTYPE_CHECKED,WCHAR,HEXADECIMAL_FLOATS,GLIBC_CUSTOM_PRINTF,FOPEN_EXCLUSIVE_MODE,GLIBC_CUSTOM_STREAMS,PRINTF_M_SPEC,FTW} ; do
		sed -i -e "s:# ${def} is not set:${def}=y:" .config
	done
	echo "UCLIBC_HAS_FULL_RPC=y" >> .config
	echo "PTHREADS_DEBUG_SUPPORT=y" >> .config

	#if use nls
	#then
	#	sed -i -e "s:# UCLIBC_HAS_LOCALE is not set:UCLIBC_HAS_LOCALE=y:" .config
	#	echo "UCLIBC_HAS_XLOCALE=n" >> .config
	#	echo "UCLIBC_HAS_GLIBC_DIGIT_GROUPING=y" >> .config
	#	echo "UCLIBC_HAS_SCANF_LENIENT_DIGIT_GROUPING=y" >> .config
	#	# removed on 20040907 by mjn3
	#	echo "UCLIBC_HAS_GETTEXT_AWARENESS=y" >> .config
	#	# on pax enabled kernels the locale files can't be built
	#	echo "UCLIBC_PREGENERATED_LOCALE_DATA=n" >> .config
	#fi
	# we disable LOCALE for any case, gettext has to be used
	echo "UCLIBC_HAS_LOCALE=n" >> .config

	use ipv6 && sed -i -e "s:# UCLIBC_HAS_IPV6 is not set:UCLIBC_HAS_IPV6=y:" .config

	if use hardened ; then
		sed -i -e "s:# UCLIBC_SECURITY.*:UCLIBC_SECURITY=y:" .config
		if has ${ARCH} x86 ppc mips; then
			einfo "Enable Position Independent Executable support in ${P}"
			echo "UCLIBC_BUILD_PIE=y" >> .config
		fi

		einfo "Enable Stack Smashing Protections support in ${P}"
		echo "UCLIBC_HAS_SSP=y:" >> .config
		echo "PROPOLICE_BLOCK_ABRT=n" >> .config
		if use debug ; then
			echo "PROPOLICE_BLOCK_SEGV=y" >> .config
			echo "PROPOLICE_BLOCK_KILL=n" >> .config
		else
			echo "PROPOLICE_BLOCK_SEGV=n" >> .config
			echo "PROPOLICE_BLOCK_KILL=y" >> .config
		fi
		echo "UCLIBC_BUILD_SSP=y" >> .config
		echo "UCLIBC_BUILD_RELRO=y" >> .config
		echo "UCLIBC_BUILD_NOW=y" >> .config
		echo "UCLIBC_BUILD_NOEXECSTACK=y" >> .config
	fi

	# we are building against system installed kernel headers
	sed -i -e 's:KERNEL_SOURCE.*:KERNEL_SOURCE="/usr":' .config

	check_main_libc
	if [ "${SYS_LIBC}" = "uClibc" ] ; then
		sed -i \
			-e 's:SHARED_LIB_LOADER_PREFIX=.*:SHARED_LIB_LOADER_PREFIX="/lib":' \
			-e 's:DEVEL_PREFIX=.*:DEVEL_PREFIX="/usr":' \
			-e 's:RUNTIME_PREFIX=.*:RUNTIME_PREFIX="/":' \
			.config
	fi

	yes "" | make -s oldconfig > /dev/null || die "could not make oldconfig"

	chmod +x extra/scripts/relative_path.sh

	cp .config myconfig

	emake clean >/dev/null || die "could not clean"
}

src_compile() {
	# running tests require this
	use build || addwrite /dev/ptmx
	cp myconfig .config

	#if use nls
	#then
	#	# these can be built only if the build system supports locales (as of 0.9.26)
	#	emake -j1 headers
	#	cd extra/locale
	#	make clean
	#	find ./charmaps -name "*.pairs" > codesets.txt
	#	cp LOCALES locales.txt
	#	emake -j1 || die "could not make locales"
	#	cd ../..
	#fi

	emake -j1 || die "could not make"
	check_main_libc
	if [ "${SYS_LIBC}" = "uClibc" ]
	then
		emake -j1 utils || die "could not make utils"
	fi

	if ! use build ; then
		if ! hasq maketest $RESTRICT ; then
			# assert test fails on pax enabled kernels - normal
			# vfork test fails in sandbox (both glibc/uclibc)
			cd test; make; cd ..
		fi
	fi
}

src_install() {
	emake PREFIX=${D} install || die "install failed"

	# remove files coming from kernel-headers
	# scsi is uclibc's own directory since cvs 20040212
	check_main_libc
	if [ "${SYS_LIBC}" = "uClibc" ]
	then
		rm -rf ${D}/usr/include/{asm,linux}
		rm -f ${D}/usr/lib/lib*_pic.a
		! use static && use build && rm -f ${D}/usr/lib/lib*.a

		emake PREFIX=${D} install_utils || die "install-utils failed"
		dodir /usr/bin
		exeinto /usr/bin
		doexe docs/getent
	fi

	if ! use build
	then
		dodoc Changelog* README TODO docs/*.txt DEDICATION.mjn3
		doman debian/*.1
	fi
}

#pkg_postinst() {
#check_main_libc
#if [ "${SYS_LIBC}" = "uClibc" ] ; then
#	if [ "${ROOT}" = "/" ] ; then
#		# should we create ld.so.conf and/or preload?
#		# currently the option is not enabled
#		/sbin/ldconfig
#		[ ! -e /etc/TZ ] && echo UTC > /etc/TZ
#		# reload init?
#	fi
#else
#should we add the lib dir to ld.so.conf?
#fi
#}