--- /dev/null
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# See `man savedconfig.eclass` for info on how to use USE=savedconfig.
+
+EAPI=6
+
+inherit flag-o-matic savedconfig toolchain-funcs
+
+DESCRIPTION="Utilities for rescue and embedded systems"
+HOMEPAGE="https://www.busybox.net/"
+if [[ ${PV} == "9999" ]] ; then
+ MY_P=${P}
+ EGIT_REPO_URI="https://git.busybox.net/busybox"
+ inherit git-r3
+else
+ MY_P=${PN}-${PV/_/-}
+ SRC_URI="https://www.busybox.net/downloads/${MY_P}.tar.bz2"
+ KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sh ~sparc ~x86 ~amd64-linux ~x86-linux"
+fi
+
+LICENSE="GPL-2" # GPL-2 only
+SLOT="0"
+IUSE="debug ipv6 livecd make-symlinks math mdev pam selinux sep-usr static syslog systemd"
+REQUIRED_USE="pam? ( !static )"
+RESTRICT="test"
+
+COMMON_DEPEND="!static? ( selinux? ( sys-libs/libselinux ) )
+ pam? ( sys-libs/pam )"
+DEPEND="${COMMON_DEPEND}
+ static? ( selinux? ( sys-libs/libselinux[static-libs(+)] ) )
+ >=sys-kernel/linux-headers-2.6.39"
+RDEPEND="${COMMON_DEPEND}
+ mdev? ( !<sys-apps/openrc-0.13 )"
+
+S=${WORKDIR}/${MY_P}
+
+busybox_config_option() {
+ local flag=$1 ; shift
+ if [[ ${flag} != [yn] && ${flag} != \"* ]] ; then
+ busybox_config_option $(usex ${flag} y n) "$@"
+ return
+ fi
+ local expr
+ while [[ $# -gt 0 ]] ; do
+ case ${flag} in
+ y) expr="s:.*\<CONFIG_$1\>.*set:CONFIG_$1=y:g" ;;
+ n) expr="s:CONFIG_$1=y:# CONFIG_$1 is not set:g" ;;
+ *) expr="s:.*\<CONFIG_$1\>.*:CONFIG_$1=${flag}:g" ;;
+ esac
+ sed -i -e "${expr}" .config || die
+ einfo "$(grep "CONFIG_$1[= ]" .config || echo "Could not find CONFIG_$1 ...")"
+ shift
+ done
+}
+
+busybox_config_enabled() {
+ local val=$(sed -n "/^CONFIG_$1=/s:^[^=]*=::p" .config)
+ case ${val} in
+ "") return 1 ;;
+ y) return 0 ;;
+ *) echo "${val}" | sed -r 's:^"(.*)"$:\1:' ;;
+ esac
+}
+
+# patches go here!
+PATCHES=(
+ "${FILESDIR}"/${PN}-1.26.2-bb.patch
+ # "${FILESDIR}"/${P}-*.patch
+)
+
+src_prepare() {
+ default
+ unset KBUILD_OUTPUT #88088
+ append-flags -fno-strict-aliasing #310413
+ use ppc64 && append-flags -mminimal-toc #130943
+
+ cp "${FILESDIR}"/ginit.c init/ || die
+
+ # flag cleanup
+ sed -i -r \
+ -e 's:[[:space:]]?-(Werror|Os|falign-(functions|jumps|loops|labels)=1|fomit-frame-pointer)\>::g' \
+ Makefile.flags || die
+ #sed -i '/bbsh/s:^//::' include/applets.h
+ sed -i '/^#error Aborting compilation./d' applets/applets.c || die
+ use elibc_glibc && sed -i 's:-Wl,--gc-sections::' Makefile
+ sed -i \
+ -e "/^CROSS_COMPILE/s:=.*:= ${CHOST}-:" \
+ -e "/^AR\>/s:=.*:= $(tc-getAR):" \
+ -e "/^CC\>/s:=.*:= $(tc-getCC):" \
+ -e "/^HOSTCC/s:=.*:= $(tc-getBUILD_CC):" \
+ -e "/^PKG_CONFIG\>/s:=.*:= $(tc-getPKG_CONFIG):" \
+ Makefile || die
+ sed -i \
+ -e 's:-static-libgcc::' \
+ Makefile.flags || die
+}
+
+src_configure() {
+ # check for a busybox config before making one of our own.
+ # if one exist lets return and use it.
+
+ restore_config .config
+ if [ -f .config ]; then
+ yes "" | emake -j1 -s oldconfig >/dev/null
+ return 0
+ else
+ ewarn "Could not locate user configfile, so we will save a default one"
+ fi
+
+ # setup the config file
+ emake -j1 -s allyesconfig >/dev/null
+ # nommu forces a bunch of things off which we want on #387555
+ busybox_config_option n NOMMU
+ sed -i '/^#/d' .config
+ yes "" | emake -j1 -s oldconfig >/dev/null
+
+ # now turn off stuff we really don't want
+ busybox_config_option n DMALLOC
+ busybox_config_option n FEATURE_2_4_MODULES #607548
+ busybox_config_option n FEATURE_SUID_CONFIG
+ busybox_config_option n BUILD_AT_ONCE
+ busybox_config_option n BUILD_LIBBUSYBOX
+ busybox_config_option n FEATURE_CLEAN_UP
+ busybox_config_option n MONOTONIC_SYSCALL
+ busybox_config_option n USE_PORTABLE_CODE
+ busybox_config_option n WERROR
+ # triming the BSS size may be dangerous
+ busybox_config_option n FEATURE_USE_BSS_TAIL
+
+ # These cause trouble with musl.
+ if use elibc_musl; then
+ busybox_config_option n FEATURE_UTMP
+ busybox_config_option n EXTRA_COMPAT
+ busybox_config_option n FEATURE_VI_REGEX_SEARCH
+ fi
+
+ # If these are not set and we are using a uclibc/busybox setup
+ # all calls to system() will fail.
+ busybox_config_option y ASH
+ busybox_config_option y SH_IS_ASH
+ busybox_config_option n HUSH
+ busybox_config_option n SH_IS_HUSH
+
+ busybox_config_option '"/run"' PID_FILE_PATH
+ busybox_config_option '"/run/ifstate"' IFUPDOWN_IFSTATE_PATH
+
+ # disable ipv6 applets
+ if ! use ipv6; then
+ busybox_config_option n FEATURE_IPV6
+ busybox_config_option n TRACEROUTE6
+ busybox_config_option n PING6
+ busybox_config_option n UDHCPC6
+ fi
+
+ busybox_config_option pam PAM
+ busybox_config_option static STATIC
+ busybox_config_option syslog {K,SYS}LOGD LOGGER
+ busybox_config_option systemd FEATURE_SYSTEMD
+ busybox_config_option math FEATURE_AWK_LIBM
+
+ # disable features that uClibc doesn't (yet?) provide.
+ if use elibc_uclibc; then
+ busybox_config_option n FEATURE_SYNC_FANCY #567598
+ busybox_config_option n NSENTER
+ fi
+
+ # all the debug options are compiler related, so punt them
+ busybox_config_option n DEBUG_SANITIZE
+ busybox_config_option n DEBUG
+ busybox_config_option y NO_DEBUG_LIB
+ busybox_config_option n DMALLOC
+ busybox_config_option n EFENCE
+ busybox_config_option $(usex debug y n) TFTP_DEBUG
+
+ busybox_config_option selinux SELINUX
+
+ # this opt only controls mounting with <linux-2.6.23
+ busybox_config_option n FEATURE_MOUNT_NFS
+
+ # glibc-2.26 and later does not ship RPC implientation
+ busybox_config_option n FEATURE_HAVE_RPC
+ busybox_config_option n FEATURE_INETD_RPC
+
+ # default a bunch of uncommon options to off
+ local opt
+ for opt in \
+ ADD_SHELL \
+ BEEP BOOTCHARTD \
+ CRONTAB \
+ DC DEVFSD DNSD DPKG{,_DEB} \
+ FAKEIDENTD FBSPLASH FOLD FSCK_MINIX FTP{GET,PUT} \
+ FEATURE_DEVFS \
+ HOSTID HUSH \
+ INETD INOTIFYD IPCALC \
+ LOCALE_SUPPORT LOGNAME LPD \
+ MAKEMIME MKFS_MINIX MSH \
+ OD \
+ RDEV READPROFILE REFORMIME REMOVE_SHELL RFKILL RUN_PARTS RUNSV{,DIR} \
+ SLATTACH SMEMCAP SULOGIN SV{,LOGD} \
+ TASKSET TCPSVD \
+ RPM RPM2CPIO \
+ UDPSVD UUDECODE UUENCODE
+ do
+ busybox_config_option n ${opt}
+ done
+
+ emake -j1 oldconfig > /dev/null
+}
+
+src_compile() {
+ unset KBUILD_OUTPUT #88088
+ export SKIP_STRIP=y
+
+ emake V=1 busybox
+}
+
+src_install() {
+ unset KBUILD_OUTPUT #88088
+ save_config .config
+
+ into /
+ dodir /bin
+ if use sep-usr ; then
+ # install /ginit to take care of mounting stuff
+ exeinto /
+ newexe busybox_unstripped ginit
+ dosym /ginit /bin/bb
+ dosym bb /bin/busybox
+ else
+ newbin busybox_unstripped busybox
+ dosym busybox /bin/bb
+ fi
+ if use mdev ; then
+ dodir /$(get_libdir)/mdev/
+ use make-symlinks || dosym /bin/bb /sbin/mdev
+ cp "${S}"/examples/mdev_fat.conf "${ED}"/etc/mdev.conf
+
+ exeinto /$(get_libdir)/mdev/
+ doexe "${FILESDIR}"/mdev/*
+
+ newinitd "${FILESDIR}"/mdev.initd mdev
+ fi
+ if use livecd ; then
+ dosym busybox /bin/vi
+ fi
+
+ # add busybox daemon's, bug #444718
+ if busybox_config_enabled FEATURE_NTPD_SERVER; then
+ newconfd "${FILESDIR}/ntpd.confd" "busybox-ntpd"
+ newinitd "${FILESDIR}/ntpd.initd" "busybox-ntpd"
+ fi
+ if busybox_config_enabled SYSLOGD; then
+ newconfd "${FILESDIR}/syslogd.confd" "busybox-syslogd"
+ newinitd "${FILESDIR}/syslogd.initd" "busybox-syslogd"
+ fi
+ if busybox_config_enabled KLOGD; then
+ newconfd "${FILESDIR}/klogd.confd" "busybox-klogd"
+ newinitd "${FILESDIR}/klogd.initd" "busybox-klogd"
+ fi
+ if busybox_config_enabled WATCHDOG; then
+ newconfd "${FILESDIR}/watchdog.confd" "busybox-watchdog"
+ newinitd "${FILESDIR}/watchdog.initd" "busybox-watchdog"
+ fi
+ if busybox_config_enabled UDHCPC; then
+ local path=$(busybox_config_enabled UDHCPC_DEFAULT_SCRIPT)
+ exeinto "${path%/*}"
+ newexe examples/udhcp/simple.script "${path##*/}"
+ fi
+ if busybox_config_enabled UDHCPD; then
+ insinto /etc
+ doins examples/udhcp/udhcpd.conf
+ fi
+
+ # bundle up the symlink files for use later
+ emake DESTDIR="${ED}" install
+ rm _install/bin/busybox
+ # for compatibility, provide /usr/bin/env
+ mkdir -p _install/usr/bin
+ ln -s /bin/env _install/usr/bin/env
+ tar cf busybox-links.tar -C _install . || : #;die
+ insinto /usr/share/${PN}
+ use make-symlinks && doins busybox-links.tar
+
+ dodoc AUTHORS README TODO
+
+ cd docs
+ docinto txt
+ dodoc *.txt
+ docinto pod
+ dodoc *.pod
+ docinto html
+ dodoc *.html
+
+ cd ../examples
+ docinto examples
+ dodoc inittab depmod.pl *.conf *.script undeb unrpm
+}
+
+pkg_preinst() {
+ if use make-symlinks && [[ ! ${VERY_BRAVE_OR_VERY_DUMB} == "yes" ]] && [[ ${ROOT} == "/" ]] ; then
+ ewarn "setting USE=make-symlinks and emerging to / is very dangerous."
+ ewarn "it WILL overwrite lots of system programs like: ls bash awk grep (bug 60805 for full list)."
+ ewarn "If you are creating a binary only and not merging this is probably ok."
+ ewarn "set env VERY_BRAVE_OR_VERY_DUMB=yes if this is really what you want."
+ die "silly options will destroy your system"
+ fi
+
+ if use make-symlinks ; then
+ mv "${ED}"/usr/share/${PN}/busybox-links.tar "${T}"/ || die
+ fi
+}
+
+pkg_postinst() {
+ savedconfig_pkg_postinst
+
+ if use make-symlinks ; then
+ cd "${T}" || die
+ mkdir _install
+ tar xf busybox-links.tar -C _install || die
+ cp -vpPR _install/* "${ROOT}"/ || die "copying links for ${x} failed"
+ fi
+
+ if use sep-usr ; then
+ elog "In order to use the sep-usr support, you have to update your"
+ elog "kernel command line. Add the option:"
+ elog " init=/ginit"
+ elog "To launch a different init than /sbin/init, use:"
+ elog " init=/ginit /sbin/yourinit"
+ elog "To get a rescue shell, you may boot with:"
+ elog " init=/ginit bb"
+ fi
+}
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