commit: e5996958687948b4693324073f5114f19fd38b0e Author: Jonathan Davies <jpds <AT> protonmail <DOT> com> AuthorDate: Mon Nov 22 13:38:31 2021 +0000 Commit: Sam James <sam <AT> gentoo <DOT> org> CommitDate: Mon Nov 22 13:58:14 2021 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=e5996958
sys-libs/musl: fix ldconfig on SELinux Replaced mv in ldconfig with cp/rm dance so that the correct SELinux label is applied to the resulting file and the system doesn't brick itself instantly. Bug: https://bugs.gentoo.org/663990 Closes: https://bugs.gentoo.org/696818 Signed-off-by: Jonathan Davies <jpds <AT> protonmail.com> Closes: https://github.com/gentoo/gentoo/pull/23037 Signed-off-by: Sam James <sam <AT> gentoo.org> sys-libs/musl/files/ldconfig.in-r2 | 157 ++++++++++++++++++++++++++++++++++ sys-libs/musl/musl-1.2.2-r7.ebuild | 167 +++++++++++++++++++++++++++++++++++++ 2 files changed, 324 insertions(+) diff --git a/sys-libs/musl/files/ldconfig.in-r2 b/sys-libs/musl/files/ldconfig.in-r2 new file mode 100644 index 000000000000..72a2f58bc744 --- /dev/null +++ b/sys-libs/musl/files/ldconfig.in-r2 @@ -0,0 +1,157 @@ +#!/bin/bash -e +# Copyright 1999-2021 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +ROOT="/" +LDSO_CONF="/etc/ld.so.conf" + +VERBOSE=0 + +UPDATE_LINKS=1 + +get_options() { + while getopts "vnNXf:C:r:p" opt "$@"; do + case $opt in + v) + echo "ldconfig for musl in Gentoo" + VERBOSE=1 + ;; + r) + ROOT=${OPTARG} + LDSO_CONF=${ROOT}${LDSO_CONF} + LDSO_CONF_DIR=$(dirname ${LDSO_CONF}) + ;; + f) + LDSO_CONF=${OPTARG} + ;; + X) + UPDATE_LINKS=0 + ;; + \?) + echo "Invalid option: -${opt}" >&2 + exit 1 + ;; + n|N|C|p) + echo "Unimplemented option: -${opt}" >&2 + exit 1 + ;; + esac + done + + if [[ ${UPDATE_LINKS} == 1 ]]; then + echo "Updating links is not implemented." + fi +} + + +repeated() { + local l=${1} + local drs="${@:2}" + for m in ${drs}; do + [[ ${m} == ${l} ]] && return 0 + done + return 1 +} + +expand() { + # We are assuming the ld.so.conf's 'include' is not recursive + local f line l + local glob="${LDSO_CONF_DIR}/${1}" + local drs="${@:2} " + + for f in ${glob}; do + [[ ! -f ${f} ]] && continue + while read line; do + line=${line%%#*} + line=${line//:/ } + line=${line//,/ } + for l in ${line}; do + # We must add this whether or not the directory exists + repeated ${l} ${drs} && continue + drs+=" ${l} " + done + done < ${f} + done + + echo ${drs} +} + +read_ldso_conf() { + local drs=" " + + while read line; do + # Sanitize the line - see ldconfig(8) for delimiters + # Note: bash read turns tabs into spaces and read already + # delimits on newlines with the default $IFS + line=${line%%#*} # Remove comments + line=${line//:/ } # Change colon delimiter to space + line=${line//,/ } # Change comma delimiter to space + + next=0 + for l in ${line}; do + if [[ ${next} == 1 ]]; then + next=0 + drs=$(expand ${l} ${drs}) + elif [[ ${l} == "include" ]]; then + next=1 + else + # glibc's ldconfig silently skips non directories + if [[ -d ${l} ]]; then + repeated ${l} ${drs} && continue + drs+=" ${l} " + fi + fi + done + done < ${1} + + echo ${drs} +} + +sanitize() { + local drs=$@ + + repeated "/lib" ${drs} || drs="/lib ${drs}" + repeated "/usr/lib" ${drs} || drs="/usr/lib ${drs}" + + echo ${drs} +} + +changed() { + [[ -f ${ETC_LDSO_PATH} ]] || return 0 + local current=$(<${ETC_LDSO_PATH}) + current=${current//$'\n'/ } + [[ ${current} != ${drs} ]] || return 1 +} + +get_options "$@" + +if [[ ! -e ${LDSO_CONF} ]]; then + echo "${LDSO_CONF} not found" >&2 + exit 1 +fi + +LDSO_CONF_DIR=$(dirname ${LDSO_CONF}) + +drs=$(read_ldso_conf "${LDSO_CONF}") +drs=$(sanitize ${drs}) + +ARCH=@@ARCH@@ +LDSO_PATH="${ROOT}/lib/ld-musl-${ARCH}.so.1" +if [[ ! -e ${LDSO_PATH} ]]; then + echo "${LDSO_PATH} not found" >&2 + exit 1 +fi + +LDSO_ARCH=$(basename ${LDSO_PATH}) +LDSO_NAME=${LDSO_ARCH%.so.1} +ETC_LDSO_PATH="${ROOT}/etc/${LDSO_NAME}.path" + +changed || exit 0 +X=$(mktemp -p /tmp ${LDSO_NAME}.XXXXXX) +for d in ${drs}; do + echo ${d} >> ${X} +done +chmod 644 ${X} +# busybox doesn't support mz -Z +cp ${X} ${ETC_LDSO_PATH} +rm ${X} diff --git a/sys-libs/musl/musl-1.2.2-r7.ebuild b/sys-libs/musl/musl-1.2.2-r7.ebuild new file mode 100644 index 000000000000..dac76c213424 --- /dev/null +++ b/sys-libs/musl/musl-1.2.2-r7.ebuild @@ -0,0 +1,167 @@ +# Copyright 1999-2021 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=7 + +inherit eapi8-dosym flag-o-matic toolchain-funcs +if [[ ${PV} == "9999" ]] ; then + EGIT_REPO_URI="git://git.musl-libc.org/musl" + inherit git-r3 +else + SRC_URI="http://www.musl-libc.org/releases/${P}.tar.gz"; + KEYWORDS="-* ~amd64 ~arm ~arm64 ~mips ~ppc ~ppc64 ~x86" +fi +GETENT_COMMIT="93a08815f8598db442d8b766b463d0150ed8e2ab" +GETENT_FILE="musl-getent-${GETENT_COMMIT}.c" +SRC_URI+=" + https://dev.gentoo.org/~blueness/musl-misc/getconf.c + https://gitlab.alpinelinux.org/alpine/aports/-/raw/${GETENT_COMMIT}/main/musl/getent.c -> ${GETENT_FILE} + https://dev.gentoo.org/~blueness/musl-misc/iconv.c +" + +export CBUILD=${CBUILD:-${CHOST}} +export CTARGET=${CTARGET:-${CHOST}} +if [[ ${CTARGET} == ${CHOST} ]] ; then + if [[ ${CATEGORY} == cross-* ]] ; then + export CTARGET=${CATEGORY#cross-} + fi +fi + +DESCRIPTION="Light, fast and simple C library focused on standards-conformance and safety" +HOMEPAGE="https://musl.libc.org"; +LICENSE="MIT LGPL-2 GPL-2" +SLOT="0" +IUSE="headers-only" + +QA_SONAME="/usr/lib/libc.so" +QA_DT_NEEDED="/usr/lib/libc.so" + +is_crosscompile() { + [[ ${CHOST} != ${CTARGET} ]] +} + +just_headers() { + use headers-only && is_crosscompile +} + +pkg_setup() { + if [ ${CTARGET} == ${CHOST} ] ; then + case ${CHOST} in + *-musl*) ;; + *) die "Use sys-devel/crossdev to build a musl toolchain" ;; + esac + fi + + # fix for #667126, copied from glibc ebuild + # make sure host make.conf doesn't pollute us + if is_crosscompile || tc-is-cross-compiler ; then + CHOST=${CTARGET} strip-unsupported-flags + fi +} + +src_unpack() { + if [[ ${PV} == 9999 ]]; then + git-r3_src_unpack + else + unpack "${P}.tar.gz" + fi + mkdir misc || die + cp "${DISTDIR}"/getconf.c misc/getconf.c || die + cp "${DISTDIR}/${GETENT_FILE}" misc/getent.c || die + cp "${DISTDIR}"/iconv.c misc/iconv.c || die +} + +src_prepare() { + default + + # Expand gethostid instead of being just a stub + eapply "${FILESDIR}/${PN}-1.2.2-gethostid.patch" +} + +src_configure() { + tc-getCC ${CTARGET} + just_headers && export CC=true + + local sysroot + is_crosscompile && sysroot="${EPREFIX}"/usr/${CTARGET} + ./configure \ + --target=${CTARGET} \ + --prefix=${sysroot}/usr \ + --syslibdir=${sysroot}/lib \ + --disable-gcc-wrapper || die +} + +src_compile() { + emake obj/include/bits/alltypes.h + just_headers && return 0 + + emake + if [[ ${CATEGORY} != cross-* ]] ; then + emake -C "${T}" getconf getent iconv \ + CC="$(tc-getCC)" \ + CFLAGS="${CFLAGS}" \ + CPPFLAGS="${CPPFLAGS}" \ + LDFLAGS="${LDFLAGS}" \ + VPATH="${WORKDIR}/misc" + fi + + $(tc-getCC) ${CFLAGS} -c -o libssp_nonshared.o "${FILESDIR}"/stack_chk_fail_local.c || die + $(tc-getAR) -rcs libssp_nonshared.a libssp_nonshared.o || die +} + +src_install() { + local target="install" + just_headers && target="install-headers" + emake DESTDIR="${D}" ${target} + just_headers && return 0 + + # musl provides ldd via a sym link to its ld.so + local sysroot + is_crosscompile && sysroot=/usr/${CTARGET} + local ldso=$(basename "${D}"${sysroot}/lib/ld-musl-*) + dosym ${sysroot}/lib/${ldso} ${sysroot}/usr/bin/ldd + + if [[ ${CATEGORY} != cross-* ]] ; then + # Fish out of config: + # ARCH = ... + # SUBARCH = ... + # and print $(ARCH)$(SUBARCH). + local arch=$(awk '{ k[$1] = $3 } END { printf("%s%s", k["ARCH"], k["SUBARCH"]); }' config.mak) + + if [[ ! -e "${ED}"/lib/ld-musl-${arch}.so.1 ]] ; then + # During cross (using crossdev), when emerging sys-libs/musl, + # if /usr/lib/libc.so.1 doesn't exist on the system, installation + # would fail. + # + # The musl build system seems to create a symlink: + # ${D}/lib/ld-musl-${arch}.so.1 -> /usr/lib/libc.so.1 (absolute) + # During cross, there's no guarantee that the host is using musl + # so that file may not exist. Use a relative symlink within ${D} + # instead. + dosym8 -r /usr/lib/libc.so /lib/ld-musl-${arch}.so.1 + + # If it's still a dead symlnk, OK, we really do need to abort. + [[ -e "${ED}"/lib/ld-musl-${arch}.so.1 ]] || die + fi + + cp "${FILESDIR}"/ldconfig.in-r2 "${T}"/ldconfig.in || die + sed -e "s|@@ARCH@@|${arch}|" "${T}"/ldconfig.in > "${T}"/ldconfig || die + into / + dosbin "${T}"/ldconfig + into /usr + dobin "${T}"/getconf + dobin "${T}"/getent + dobin "${T}"/iconv + echo 'LDPATH="include ld.so.conf.d/*.conf"' > "${T}"/00musl || die + doenvd "${T}"/00musl + dolib.a libssp_nonshared.a + fi +} + +pkg_postinst() { + is_crosscompile && return 0 + + [ "${ROOT}" != "/" ] && return 0 + + ldconfig || die +}
