From 7afe99bc9ad24520e698e51b0bbf0394f0ad63d8 Mon Sep 17 00:00:00 2001 From: Michał Górny Date: Thu, 16 Mar 2017 11:01:40 +0100 Subject: sys-libs/glibc: [QA] Convert from eblits to eclass, #586422 --- eclass/toolchain-glibc.eclass | 1404 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 1404 insertions(+) create mode 100644 eclass/toolchain-glibc.eclass (limited to 'eclass') diff --git a/eclass/toolchain-glibc.eclass b/eclass/toolchain-glibc.eclass new file mode 100644 index 000000000000..d410775759df --- /dev/null +++ b/eclass/toolchain-glibc.eclass @@ -0,0 +1,1404 @@ +# Copyright 1999-2017 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +# @ECLASS: toolchain-glibc.eclass +# @MAINTAINER: +# +# @BLURB: Common code for sys-libs/glibc ebuilds +# @DESCRIPTION: +# This eclass contains the common phase functions migrated from +# sys-libs/glibc eblits. + +if [[ -z ${_TOOLCHAIN_GLIBC_ECLASS} ]]; then + +inherit eutils versionator toolchain-funcs flag-o-matic gnuconfig \ + multilib systemd unpacker multiprocessing prefix + +case ${EAPI:-0} in + 0|1|2|3) EXPORT_FUNCTIONS pkg_setup src_unpack src_compile src_test \ + src_install pkg_preinst pkg_postinst;; + 2|3) EXPORT_FUNCTIONS pkg_setup src_unpack src_prepare src_configure \ + src_compile src_test src_install pkg_preinst pkg_postinst;; + 4|5|6) EXPORT_FUNCTIONS pkg_pretend pkg_setup src_unpack src_prepare \ + src_configure src_compile src_test src_install \ + pkg_preinst pkg_postinst;; + *) die "Unsupported EAPI=${EAPI}";; +esac + +# == common == + +alt_prefix() { + is_crosscompile && echo /usr/${CTARGET} +} + +if [[ ${EAPI:-0} == [012] ]] ; then + : ${ED:=${D}} + : ${EROOT:=${ROOT}} +fi +# This indirection is for binpkgs. #523332 +_nonfatal() { nonfatal "$@" ; } +if [[ ${EAPI:-0} == [0123] ]] ; then + nonfatal() { "$@" ; } + _nonfatal() { "$@" ; } +fi + +# We need to be able to set alternative headers for +# compiling for non-native platform +# Will also become useful for testing kernel-headers without screwing up +# the whole system. +# note: intentionally undocumented. +alt_headers() { + echo ${ALT_HEADERS:=$(alt_prefix)/usr/include} +} +alt_build_headers() { + if [[ -z ${ALT_BUILD_HEADERS} ]] ; then + ALT_BUILD_HEADERS="${EPREFIX}$(alt_headers)" + if tc-is-cross-compiler ; then + ALT_BUILD_HEADERS=${SYSROOT}$(alt_headers) + if [[ ! -e ${ALT_BUILD_HEADERS}/linux/version.h ]] ; then + local header_path=$(echo '#include ' | $(tc-getCPP ${CTARGET}) ${CFLAGS} 2>&1 | grep -o '[^"]*linux/version.h') + ALT_BUILD_HEADERS=${header_path%/linux/version.h} + fi + fi + fi + echo "${ALT_BUILD_HEADERS}" +} + +alt_libdir() { + echo $(alt_prefix)/$(get_libdir) +} +alt_usrlibdir() { + echo $(alt_prefix)/usr/$(get_libdir) +} + +builddir() { + echo "${WORKDIR}/build-${ABI}-${CTARGET}-$1" +} + +setup_target_flags() { + # This largely mucks with compiler flags. None of which should matter + # when building up just the headers. + just_headers && return 0 + + case $(tc-arch) in + x86) + # -march needed for #185404 #199334 + # TODO: When creating the first glibc cross-compile, this test will + # always fail as it does a full link which in turn requires glibc. + # Probably also applies when changing multilib profile settings (e.g. + # enabling x86 when the profile was amd64-only previously). + # We could change main to _start and pass -nostdlib here so that we + # only test the gcc code compilation. Or we could do a compile and + # then look for the symbol via scanelf. + if ! glibc_compile_test "" 'void f(int i, void *p) {if (__sync_fetch_and_add(&i, 1)) f(i, p);}\nint main(){return 0;}\n' 2>/dev/null ; then + local t=${CTARGET_OPT:-${CTARGET}} + t=${t%%-*} + filter-flags '-march=*' + export CFLAGS="-march=${t} ${CFLAGS}" + einfo "Auto adding -march=${t} to CFLAGS #185404" + fi + ;; + amd64) + # -march needed for #185404 #199334 + # Note: This test only matters when the x86 ABI is enabled, so we could + # optimize a bit and elide it. + # TODO: See cross-compile issues listed above for x86. + if ! glibc_compile_test "${CFLAGS_x86}" 'void f(int i, void *p) {if (__sync_fetch_and_add(&i, 1)) f(i, p);}\nint main(){return 0;}\n' 2>/dev/null ; then + local t=${CTARGET_OPT:-${CTARGET}} + t=${t%%-*} + # Normally the target is x86_64-xxx, so turn that into the -march that + # gcc actually accepts. #528708 + [[ ${t} == "x86_64" ]] && t="x86-64" + filter-flags '-march=*' + # ugly, ugly, ugly. ugly. + CFLAGS_x86=$(CFLAGS=${CFLAGS_x86} filter-flags '-march=*'; echo "${CFLAGS}") + export CFLAGS_x86="${CFLAGS_x86} -march=${t}" + einfo "Auto adding -march=${t} to CFLAGS_x86 #185404" + fi + ;; + mips) + # The mips abi cannot support the GNU style hashes. #233233 + filter-ldflags -Wl,--hash-style=gnu -Wl,--hash-style=both + ;; + ppc) + append-flags "-freorder-blocks" + ;; + sparc) + # Both sparc and sparc64 can use -fcall-used-g6. -g7 is bad, though. + filter-flags "-fcall-used-g7" + append-flags "-fcall-used-g6" + + # If the CHOST is the basic one (e.g. not sparcv9-xxx already), + # try to pick a better one so glibc can use cpu-specific .S files. + # We key off the CFLAGS to get a good value. Also need to handle + # version skew. + # We can't force users to set their CHOST to their exact machine + # as many of these are not recognized by config.sub/gcc and such :(. + # Note: If the mcpu values don't scale, we might try probing CPP defines. + # Note: Should we factor in -Wa,-AvXXX flags too ? Or -mvis/etc... ? + + local cpu + case ${CTARGET} in + sparc64-*) + case $(get-flag mcpu) in + niagara[234]) + if version_is_at_least 2.8 ; then + cpu="sparc64v2" + elif version_is_at_least 2.4 ; then + cpu="sparc64v" + elif version_is_at_least 2.2.3 ; then + cpu="sparc64b" + fi + ;; + niagara) + if version_is_at_least 2.4 ; then + cpu="sparc64v" + elif version_is_at_least 2.2.3 ; then + cpu="sparc64b" + fi + ;; + ultrasparc3) + cpu="sparc64b" + ;; + *) + # We need to force at least v9a because the base build doesn't + # work with just v9. + # https://sourceware.org/bugzilla/show_bug.cgi?id=19477 + [[ -z ${cpu} ]] && append-flags "-Wa,-xarch=v9a" + ;; + esac + ;; + sparc-*) + case $(get-flag mcpu) in + niagara[234]) + if version_is_at_least 2.8 ; then + cpu="sparcv9v2" + elif version_is_at_least 2.4 ; then + cpu="sparcv9v" + elif version_is_at_least 2.2.3 ; then + cpu="sparcv9b" + else + cpu="sparcv9" + fi + ;; + niagara) + if version_is_at_least 2.4 ; then + cpu="sparcv9v" + elif version_is_at_least 2.2.3 ; then + cpu="sparcv9b" + else + cpu="sparcv9" + fi + ;; + ultrasparc3) + cpu="sparcv9b" + ;; + v9|ultrasparc) + cpu="sparcv9" + ;; + v8|supersparc|hypersparc|leon|leon3) + cpu="sparcv8" + ;; + esac + ;; + esac + [[ -n ${cpu} ]] && CTARGET_OPT="${cpu}-${CTARGET#*-}" + ;; + esac +} + +setup_flags() { + # Make sure host make.conf doesn't pollute us + if is_crosscompile || tc-is-cross-compiler ; then + CHOST=${CTARGET} strip-unsupported-flags + fi + + # Store our CFLAGS because it's changed depending on which CTARGET + # we are building when pulling glibc on a multilib profile + CFLAGS_BASE=${CFLAGS_BASE-${CFLAGS}} + CFLAGS=${CFLAGS_BASE} + CXXFLAGS_BASE=${CXXFLAGS_BASE-${CXXFLAGS}} + CXXFLAGS=${CXXFLAGS_BASE} + ASFLAGS_BASE=${ASFLAGS_BASE-${ASFLAGS}} + ASFLAGS=${ASFLAGS_BASE} + + # Over-zealous CFLAGS can often cause problems. What may work for one + # person may not work for another. To avoid a large influx of bugs + # relating to failed builds, we strip most CFLAGS out to ensure as few + # problems as possible. + strip-flags + strip-unsupported-flags + filter-flags -m32 -m64 -mabi=* + + # Bug 492892. + filter-flags -frecord-gcc-switches + + unset CBUILD_OPT CTARGET_OPT + if use multilib ; then + CTARGET_OPT=$(get_abi_CTARGET) + [[ -z ${CTARGET_OPT} ]] && CTARGET_OPT=$(get_abi_CHOST) + fi + + setup_target_flags + + if [[ -n ${CTARGET_OPT} && ${CBUILD} == ${CHOST} ]] && ! is_crosscompile; then + CBUILD_OPT=${CTARGET_OPT} + fi + + # Lock glibc at -O2 -- linuxthreads needs it and we want to be + # conservative here. -fno-strict-aliasing is to work around #155906 + filter-flags -O? + append-flags -O2 -fno-strict-aliasing + + # Can't build glibc itself with fortify code. Newer versions add + # this flag for us, so no need to do it manually. + version_is_at_least 2.16 ${PV} || append-cppflags -U_FORTIFY_SOURCE + + # building glibc with SSP is fraught with difficulty, especially + # due to __stack_chk_fail_local which would mean significant changes + # to the glibc build process. See bug #94325 #293721 + # Note we have to handle both user-given CFLAGS and gcc defaults via + # spec rules here. We can't simply add -fno-stack-protector as it gets + # added before user flags, and we can't just filter-flags because + # _filter_hardened doesn't support globs. + filter-flags -fstack-protector* + gcc-specs-ssp && append-flags $(test-flags -fno-stack-protector) + + if use hardened && gcc-specs-pie ; then + # Force PIC macro definition for all compilations since they're all + # either -fPIC or -fPIE with the default-PIE compiler. + append-cppflags -DPIC + else + # Don't build -fPIE without the default-PIE compiler and the + # hardened-pie patch + filter-flags -fPIE + fi +} + +want_nptl() { + [[ -z ${LT_VER} ]] && return 0 + want_tls || return 1 + use nptl || return 1 + + # Older versions of glibc had incomplete arch support for nptl. + # But if you're building those now, you can handle USE=nptl yourself. + return 0 +} + +want_linuxthreads() { + [[ -z ${LT_VER} ]] && return 1 + use linuxthreads +} + +want_tls() { + # Archs that can use TLS (Thread Local Storage) + case $(tc-arch) in + x86) + # requires i486 or better #106556 + [[ ${CTARGET} == i[4567]86* ]] && return 0 + return 1 + ;; + esac + + return 0 +} + +want__thread() { + want_tls || return 1 + + # For some reason --with-tls --with__thread is causing segfaults on sparc32. + [[ ${PROFILE_ARCH} == "sparc" ]] && return 1 + + [[ -n ${WANT__THREAD} ]] && return ${WANT__THREAD} + + # only test gcc -- cant test linking yet + tc-has-tls -c ${CTARGET} + WANT__THREAD=$? + + return ${WANT__THREAD} +} + +use_multiarch() { + # Make sure binutils is new enough to support indirect functions #336792 + # This funky sed supports gold and bfd linkers. + local bver nver + bver=$($(tc-getLD ${CTARGET}) -v | sed -n -r '1{s:[^0-9]*::;s:^([0-9.]*).*:\1:;p}') + case $(tc-arch ${CTARGET}) in + amd64|x86) nver="2.20" ;; + arm) nver="2.22" ;; + hppa) nver="2.23" ;; + ppc|ppc64) nver="2.20" ;; + # ifunc was added in 2.23, but glibc also needs machinemode which is in 2.24. + s390) nver="2.24" ;; + sparc) nver="2.21" ;; + *) return 1 ;; + esac + version_is_at_least ${nver} ${bver} +} + +# Setup toolchain variables that had historically +# been defined in the profiles for these archs. +setup_env() { + # silly users + unset LD_RUN_PATH + unset LD_ASSUME_KERNEL + + if is_crosscompile || tc-is-cross-compiler ; then + multilib_env ${CTARGET_OPT:-${CTARGET}} + + if ! use multilib ; then + MULTILIB_ABIS=${DEFAULT_ABI} + else + MULTILIB_ABIS=${MULTILIB_ABIS:-${DEFAULT_ABI}} + fi + + # If the user has CFLAGS_ in their make.conf, use that, + # and fall back on CFLAGS. + local VAR=CFLAGS_${CTARGET//[-.]/_} + CFLAGS=${!VAR-${CFLAGS}} + fi + + setup_flags + + export ABI=${ABI:-${DEFAULT_ABI:-default}} + + local VAR=CFLAGS_${ABI} + # We need to export CFLAGS with abi information in them because glibc's + # configure script checks CFLAGS for some targets (like mips). Keep + # around the original clean value to avoid appending multiple ABIs on + # top of each other. + : ${__GLIBC_CC:=$(tc-getCC ${CTARGET_OPT:-${CTARGET}})} + export __GLIBC_CC CC="${__GLIBC_CC} ${!VAR}" +} + +foreach_abi() { + setup_env + + local ret=0 + local abilist="" + if use multilib ; then + abilist=$(get_install_abis) + else + abilist=${DEFAULT_ABI} + fi + evar_push ABI + export ABI + for ABI in ${abilist:-default} ; do + setup_env + einfo "Running $1 for ABI ${ABI}" + $1 + : $(( ret |= $? )) + done + evar_pop + return ${ret} +} + +just_headers() { + is_crosscompile && use crosscompile_opts_headers-only +} + +glibc_banner() { + local b="Gentoo ${PVR}" + [[ -n ${SNAP_VER} ]] && b+=" snapshot ${SNAP_VER}" + [[ -n ${BRANCH_UPDATE} ]] && b+=" branch ${BRANCH_UPDATE}" + [[ -n ${PATCH_VER} ]] && ! use vanilla && b+=" p${PATCH_VER}" + echo "${b}" +} + +# == phases == + +glibc_compile_test() { + local ret save_cflags=${CFLAGS} + CFLAGS+=" $1" + shift + + pushd "${T}" >/dev/null + + rm -f glibc-test* + printf '%b' "$*" > glibc-test.c + + _nonfatal emake -s glibc-test + ret=$? + + popd >/dev/null + + CFLAGS=${save_cflags} + return ${ret} +} + +glibc_run_test() { + local ret + + if [[ ${EMERGE_FROM} == "binary" ]] ; then + # ignore build failures when installing a binary package #324685 + glibc_compile_test "" "$@" 2>/dev/null || return 0 + else + if ! glibc_compile_test "" "$@" ; then + ewarn "Simple build failed ... assuming this is desired #324685" + return 0 + fi + fi + + pushd "${T}" >/dev/null + + ./glibc-test + ret=$? + rm -f glibc-test* + + popd >/dev/null + + return ${ret} +} + +check_devpts() { + # Make sure devpts is mounted correctly for use w/out setuid pt_chown. + + # If merely building the binary package, then there's nothing to verify. + [[ ${MERGE_TYPE} == "buildonly" ]] && return + + # Only sanity check when installing the native glibc. + [[ ${ROOT} != "/" ]] && return + + # Older versions always installed setuid, so no need to check. + in_iuse suid || return + + # If they're opting in to the old suid code, then no need to check. + use suid && return + + if awk '$3 == "devpts" && $4 ~ /[, ]gid=5[, ]/ { exit 1 }' /proc/mounts ; then + eerror "In order to use glibc with USE=-suid, you must make sure that" + eerror "you have devpts mounted at /dev/pts with the gid=5 option." + eerror "Openrc should do this for you, so you should check /etc/fstab" + eerror "and make sure you do not have any invalid settings there." + # Do not die on older kernels as devpts did not export these settings #489520. + if version_is_at_least 2.6.25 $(uname -r) ; then + die "mount & fix your /dev/pts settings" + fi + fi +} + +toolchain-glibc_pkg_pretend() { + # For older EAPIs, this is run in pkg_preinst. + if [[ ${EAPI:-0} != [0123] ]] ; then + check_devpts + fi + + # Prevent native builds from downgrading. + if [[ ${MERGE_TYPE} != "buildonly" ]] && \ + [[ ${ROOT} == "/" ]] && \ + [[ ${CBUILD} == ${CHOST} ]] && \ + [[ ${CHOST} == ${CTARGET} ]] ; then + # The high rev # is to allow people to downgrade between -r# versions. + # We want to block 2.20->2.19, but 2.20-r3->2.20-r2 should be fine. + # Hopefully we never actually use a r# this high. + if has_version ">${CATEGORY}/${P}-r10000" ; then + eerror "Sanity check to keep you from breaking your system:" + eerror " Downgrading glibc is not supported and a sure way to destruction" + die "aborting to save your system" + fi + + if ! glibc_run_test '#include \nint main(){return getpwuid(0)==0;}\n' + then + eerror "Your patched vendor kernel is broken. You need to get an" + eerror "update from whoever is providing the kernel to you." + eerror "https://sourceware.org/bugzilla/show_bug.cgi?id=5227" + eerror "http://bugs.gentoo.org/262698" + die "keeping your system alive, say thank you" + fi + + if ! glibc_run_test '#include \n#include \nint main(){return syscall(1000)!=-1;}\n' + then + eerror "Your old kernel is broken. You need to update it to" + eerror "a newer version as syscall() will break." + eerror "http://bugs.gentoo.org/279260" + die "keeping your system alive, say thank you" + fi + fi + + # users have had a chance to phase themselves, time to give em the boot + if [[ -e ${EROOT}/etc/locale.gen ]] && [[ -e ${EROOT}/etc/locales.build ]] ; then + eerror "You still haven't deleted ${EROOT}/etc/locales.build." + eerror "Do so now after making sure ${EROOT}/etc/locale.gen is kosher." + die "lazy upgrader detected" + fi + + if [[ ${CTARGET} == i386-* ]] ; then + eerror "i386 CHOSTs are no longer supported." + eerror "Chances are you don't actually want/need i386." + eerror "Please read http://www.gentoo.org/doc/en/change-chost.xml" + die "please fix your CHOST" + fi + + if [[ -e /proc/xen ]] && [[ $(tc-arch) == "x86" ]] && ! is-flag -mno-tls-direct-seg-refs ; then + ewarn "You are using Xen but don't have -mno-tls-direct-seg-refs in your CFLAGS." + ewarn "This will result in a 50% performance penalty when running with a 32bit" + ewarn "hypervisor, which is probably not what you want." + fi + + use hardened && ! gcc-specs-pie && \ + ewarn "PIE hardening not applied, as your compiler doesn't default to PIE" + + # Make sure host system is up to date #394453 + if has_version '\nLINUX_VERSION_CODE\n' | \ + $(tc-getCPP ${CTARGET}) -I "${EPREFIX}/$(alt_build_headers)" - | \ + tail -n 1 +} + +check_nptl_support() { + # don't care about the compiler here as we arent using it + just_headers && return + + local run_kv build_kv want_kv + run_kv=$(int_to_KV $(get_KV)) + build_kv=$(int_to_KV $(get_kheader_version)) + want_kv=${NPTL_KERN_VER} + + ebegin "Checking gcc for __thread support" + if ! eend $(want__thread ; echo $?) ; then + echo + eerror "Could not find a gcc that supports the __thread directive!" + eerror "Please update your binutils/gcc and try again." + die "No __thread support in gcc!" + fi + + if ! is_crosscompile && ! tc-is-cross-compiler ; then + # Building fails on an non-supporting kernel + ebegin "Checking kernel version (${run_kv} >= ${want_kv})" + if ! eend_KV ${run_kv} ${want_kv} ; then + echo + eerror "You need a kernel of at least ${want_kv} for NPTL support!" + die "Kernel version too low!" + fi + fi + + ebegin "Checking linux-headers version (${build_kv} >= ${want_kv})" + if ! eend_KV ${build_kv} ${want_kv} ; then + echo + eerror "You need linux-headers of at least ${want_kv} for NPTL support!" + die "linux-headers version too low!" + fi +} + +unpack_pkg() { + local a=${PN} + [[ -n ${SNAP_VER} ]] && a="${a}-${RELEASE_VER}" + [[ -n $1 ]] && a="${a}-$1" + if [[ -n ${SNAP_VER} ]] ; then + a="${a}-${SNAP_VER}" + else + if [[ -n $2 ]] ; then + a="${a}-$2" + else + a="${a}-${RELEASE_VER}" + fi + fi + if has ${a}.tar.xz ${A} ; then + unpacker ${a}.tar.xz + else + unpack ${a}.tar.bz2 + fi + [[ -n $1 ]] && { mv ${a} $1 || die ; } +} + +toolchain-glibc_do_src_unpack() { + # Check NPTL support _before_ we unpack things to save some time + want_nptl && check_nptl_support + + if [[ -n ${EGIT_REPO_URIS} ]] ; then + local i d + for ((i=0; i<${#EGIT_REPO_URIS[@]}; ++i)) ; do + EGIT_REPO_URI=${EGIT_REPO_URIS[$i]} + EGIT_SOURCEDIR=${EGIT_SOURCEDIRS[$i]} + git-2_src_unpack + done + else + unpack_pkg + fi + + cd "${S}" + touch locale/C-translit.h #185476 #218003 + [[ -n ${LT_VER} ]] && unpack_pkg linuxthreads ${LT_VER} + [[ -n ${PORTS_VER} ]] && unpack_pkg ports ${PORTS_VER} + [[ -n ${LIBIDN_VER} ]] && unpack_pkg libidn + + if [[ -n ${PATCH_VER} ]] ; then + cd "${WORKDIR}" + unpack glibc-${RELEASE_VER}-patches-${PATCH_VER}.tar.bz2 + # pull out all the addons + local d + for d in extra/*/configure ; do + d=${d%/configure} + [[ -d ${S}/${d} ]] && die "${d} already exists in \${S}" + mv "${d}" "${S}" || die "moving ${d} failed" + done + fi +} + +toolchain-glibc_src_unpack() { + setup_env + + toolchain-glibc_do_src_unpack + [[ ${EAPI:-0} == [01] ]] && cd "${S}" && toolchain-glibc_src_prepare +} + +toolchain-glibc_src_prepare() { + # XXX: We should do the branchupdate, before extracting the manpages and + # infopages else it does not help much (mtimes change if there is a change + # to them with branchupdate) + if [[ -n ${BRANCH_UPDATE} ]] ; then + epatch "${DISTDIR}"/glibc-${RELEASE_VER}-branch-update-${BRANCH_UPDATE}.patch.bz2 + + # Snapshot date patch + einfo "Patching version to display snapshot date ..." + sed -i -e "s:\(#define RELEASE\).*:\1 \"${BRANCH_UPDATE}\":" version.h + fi + + # tag, glibc is it + if ! version_is_at_least 2.17 ; then + [[ -e csu/Banner ]] && die "need new banner location" + glibc_banner > csu/Banner + fi + if [[ -n ${PATCH_VER} ]] && ! use vanilla ; then + EPATCH_MULTI_MSG="Applying Gentoo Glibc Patchset ${RELEASE_VER}-${PATCH_VER} ..." \ + EPATCH_EXCLUDE=${GLIBC_PATCH_EXCLUDE} \ + EPATCH_SUFFIX="patch" \ + ARCH=$(tc-arch) \ + epatch "${WORKDIR}"/patches + fi + + if just_headers ; then + if [[ -e ports/sysdeps/mips/preconfigure ]] ; then + # mips peeps like to screw with us. if building headers, + # we don't have a real compiler, so we can't let them + # insert -mabi on us. + sed -i '/CPPFLAGS=.*-mabi/s|.*|:|' ports/sysdeps/mips/preconfigure || die + find ports/sysdeps/mips/ -name Makefile -exec sed -i '/^CC.*-mabi=/s:-mabi=.*:-D_MIPS_SZPTR=32:' {} + + fi + fi + + epatch_user + + gnuconfig_update + + # Glibc is stupid sometimes, and doesn't realize that with a + # static C-Only gcc, -lgcc_eh doesn't exist. + # https://sourceware.org/ml/libc-alpha/2003-09/msg00100.html + # https://sourceware.org/ml/libc-alpha/2005-02/msg00042.html + # But! Finally fixed in recent versions: + # https://sourceware.org/ml/libc-alpha/2012-05/msg01865.html + if ! version_is_at_least 2.16 ; then + echo 'int main(){}' > "${T}"/gcc_eh_test.c + if ! $(tc-getCC ${CTARGET}) ${CFLAGS} ${LDFLAGS} "${T}"/gcc_eh_test.c -lgcc_eh 2>/dev/null ; then + sed -i -e 's:-lgcc_eh::' Makeconfig || die "sed gcc_eh" + fi + fi + + cd "${WORKDIR}" + find . -type f '(' -size 0 -o -name "*.orig" ')' -delete + find . -name configure -exec touch {} + + + eprefixify extra/locale/locale-gen + + # Fix permissions on some of the scripts. + chmod u+x "${S}"/scripts/*.sh +} +dump_toolchain_settings() { + echo + + einfo "$*" + + local v + for v in ABI CBUILD CHOST CTARGET CBUILD_OPT CTARGET_OPT CC LD {AS,C,CPP,CXX,LD}FLAGS ; do + einfo " $(printf '%15s' ${v}:) ${!v}" + done + + # The glibc configure script doesn't properly use LDFLAGS all the time. + export CC="$(tc-getCC ${CTARGET}) ${LDFLAGS}" + einfo " $(printf '%15s' 'Manual CC:') ${CC}" + echo +} + +glibc_do_configure() { + # Glibc does not work with gold (for various reasons) #269274. + tc-ld-disable-gold + + dump_toolchain_settings "Configuring glibc for $1" + + local myconf=() + + # set addons + pushd "${S}" > /dev/null + local addons=$(echo */configure | sed \ + -e 's:/configure::g' \ + -e 's:\(linuxthreads\|nptl\|rtkaio\|glibc-compat\)\( \|$\)::g' \ + -e 's: \+$::' \ + -e 's! !,!g' \ + -e 's!^!,!' \ + -e '/^,\*$/d') + [[ -d ports ]] && addons+=",ports" + popd > /dev/null + + myconf+=( $(use_enable hardened stackguard-randomization) ) + if has_version ' "${T}"/test.c + if ! $(tc-getCC ${CTARGET}) ${CFLAGS} ${LDFLAGS} "${T}"/test.c -Wl,-emain -lgcc 2>/dev/null ; then + sed -i -e '/^CC = /s:$: -B$(objdir)/../'"gcc-${GCC_BOOTSTRAP_VER}/${ABI}:" config.make || die + mkdir -p sunrpc + cp $(which rpcgen) sunrpc/cross-rpcgen || die + touch -t 202001010101 sunrpc/cross-rpcgen || die + fi + fi +} + +toolchain-glibc_headers_configure() { + export ABI=default + + local builddir=$(builddir "headers") + mkdir -p "${builddir}" + cd "${builddir}" + + # if we don't have a compiler yet, we cant really test it now ... + # hopefully they don't affect header geneation, so let's hope for + # the best here ... + local v vars=( + ac_cv_header_cpuid_h=yes + libc_cv_{386,390,alpha,arm,hppa,ia64,mips,{powerpc,sparc}{,32,64},sh,x86_64}_tls=yes + libc_cv_asm_cfi_directives=yes + libc_cv_broken_visibility_attribute=no + libc_cv_c_cleanup=yes + libc_cv_forced_unwind=yes + libc_cv_gcc___thread=yes + libc_cv_mlong_double_128=yes + libc_cv_mlong_double_128ibm=yes + libc_cv_ppc_machine=yes + libc_cv_ppc_rel16=yes + libc_cv_predef_{fortify_source,stack_protector}=no + libc_cv_visibility_attribute=yes + libc_cv_z_combreloc=yes + libc_cv_z_execstack=yes + libc_cv_z_initfirst=yes + libc_cv_z_nodelete=yes + libc_cv_z_nodlopen=yes + libc_cv_z_relro=yes + libc_mips_abi=${ABI} + libc_mips_float=$([[ $(tc-is-softfloat) == "yes" ]] && echo soft || echo hard) + # These libs don't have configure flags. + ac_cv_lib_audit_audit_log_user_avc_message=no + ac_cv_lib_cap_cap_init=no + ) + einfo "Forcing cached settings:" + for v in "${vars[@]}" ; do + einfo " ${v}" + export ${v} + done + + # Blow away some random CC settings that screw things up. #550192 + if [[ -d ${S}/sysdeps/mips ]]; then + pushd "${S}"/sysdeps/mips >/dev/null + sed -i -e '/^CC +=/s:=.*:= -D_MIPS_SZPTR=32:' mips32/Makefile mips64/n32/Makefile || die + sed -i -e '/^CC +=/s:=.*:= -D_MIPS_SZPTR=64:' mips64/n64/Makefile || die + if version_is_at_least 2.21 ; then + # Force the mips ABI to the default. This is OK because the set of + # installed headers in this phase is the same between the 3 ABIs. + # If this ever changes, this hack will break, but that's unlikely + # as glibc discourages that behavior. + # https://crbug.com/647033 + sed -i -e 's:abiflag=.*:abiflag=_ABIO32:' preconfigure || die + fi + popd >/dev/null + fi + + local myconf=() + myconf+=( + --disable-sanity-checks + --enable-hacker-mode + --without-cvs + --disable-werror + --enable-bind-now + --build=${CBUILD_OPT:-${CBUILD}} + --host=${CTARGET_OPT:-${CTARGET}} + --with-headers=$(alt_build_headers) + --prefix="${EPREFIX}/usr" + ${EXTRA_ECONF} + ) + + local addons + [[ -d ${S}/ports ]] && addons+=",ports" + # Newer versions require nptl, so there is no addon for it. + version_is_at_least 2.20 || addons+=",nptl" + myconf+=( --enable-add-ons="${addons#,}" ) + + # Nothing is compiled here which would affect the headers for the target. + # So forcing CC/CFLAGS is sane. + set -- "${S}"/configure "${myconf[@]}" + echo "$@" + CC="$(tc-getBUILD_CC)" \ + CFLAGS="-O1 -pipe" \ + CPPFLAGS="-U_FORTIFY_SOURCE" \ + LDFLAGS="" \ + "$@" || die "failed to configure glibc" +} + +toolchain-glibc_do_src_configure() { + if just_headers ; then + toolchain-glibc_headers_configure + else + want_linuxthreads && glibc_do_configure linuxthreads + want_nptl && glibc_do_configure nptl + fi +} + +toolchain-glibc_src_configure() { + foreach_abi toolchain-glibc_do_src_configure +} + +toolchain-glibc_do_src_compile() { + local t + for t in linuxthreads nptl ; do + if want_${t} ; then + [[ ${EAPI:-0} == [01] ]] && glibc_do_configure ${t} + emake -C "$(builddir ${t})" || die "make ${t} for ${ABI} failed" + fi + done +} + +toolchain-glibc_src_compile() { + if just_headers ; then + [[ ${EAPI:-0} == [01] ]] && toolchain-glibc_headers_configure + return + fi + + foreach_abi toolchain-glibc_do_src_compile +} + +glibc_src_test() { + cd "$(builddir $1)" + nonfatal emake -j1 check && return 0 + einfo "make check failed - re-running with --keep-going to get the rest of the results" + nonfatal emake -j1 -k check + ewarn "make check failed for ${ABI}-${CTARGET}-$1" + return 1 +} + +toolchain-glibc_do_src_test() { + local ret=0 t + for t in linuxthreads nptl ; do + if want_${t} ; then + glibc_src_test ${t} + : $(( ret |= $? )) + fi + done + return ${ret} +} + +toolchain-glibc_src_test() { + # Give tests more time to complete. + export TIMEOUTFACTOR=5 + + foreach_abi toolchain-glibc_do_src_test || die "tests failed" +} + +toolchain-glibc_do_src_install() { + local builddir=$(builddir $(want_linuxthreads && echo linuxthreads || echo nptl)) + cd "${builddir}" + + emake install_root="${D}$(alt_prefix)" install || die + + if want_linuxthreads && want_nptl ; then + einfo "Installing NPTL to $(alt_libdir)/tls/..." + cd "$(builddir nptl)" + dodir $(alt_libdir)/tls $(alt_usrlibdir)/nptl + + local l src_lib + for l in libc libm librt libpthread libthread_db ; do + # take care of shared lib first ... + l=${l}.so + if [[ -e ${l} ]] ; then + src_lib=${l} + else + src_lib=$(eval echo */${l}) + fi + cp -a ${src_lib} "${ED}"$(alt_libdir)/tls/${l} || die "copying nptl ${l}" + fperms a+rx $(alt_libdir)/tls/${l} + dosym ${l} $(alt_libdir)/tls/$(scanelf -qSF'%S#F' ${src_lib}) + + # then grab the linker script or the symlink ... + if [[ -L ${ED}$(alt_usrlibdir)/${l} ]] ; then + dosym $(alt_libdir)/tls/${l} $(alt_usrlibdir)/nptl/${l} + else + sed \ + -e "s:/${l}:/tls/${l}:g" \ + -e "s:/${l/%.so/_nonshared.a}:/nptl/${l/%.so/_nonshared.a}:g" \ + "${ED}"$(alt_usrlibdir)/${l} > "${ED}"$(alt_usrlibdir)/nptl/${l} + fi + + # then grab the static lib ... + src_lib=${src_lib/%.so/.a} + [[ ! -e ${src_lib} ]] && src_lib=${src_lib/%.a/_pic.a} + cp -a ${src_lib} "${ED}"$(alt_usrlibdir)/nptl/ || die "copying nptl ${src_lib}" + src_lib=${src_lib/%.a/_nonshared.a} + if [[ -e ${src_lib} ]] ; then + cp -a ${src_lib} "${ED}"$(alt_usrlibdir)/nptl/ || die "copying nptl ${src_lib}" + fi + done + + # use the nptl linker instead of the linuxthreads one as the linuxthreads + # one may lack TLS support and that can be really bad for business + cp -a elf/ld.so "${ED}"$(alt_libdir)/$(scanelf -qSF'%S#F' elf/ld.so) || die "copying nptl interp" + fi + + # Newer versions get fancy with libm linkage to include vectorized support. + # While we don't really need a ldscript here, portage QA checks get upset. + if [[ -e ${ED}$(alt_usrlibdir)/libm-${PV}.a ]] ; then + dosym ../../$(get_libdir)/libm-${PV}.so $(alt_usrlibdir)/libm-${PV}.so + fi + + # We'll take care of the cache ourselves + rm -f "${ED}"/etc/ld.so.cache + + # Everything past this point just needs to be done once ... + is_final_abi || return 0 + + # Make sure the non-native interp can be found on multilib systems even + # if the main library set isn't installed into the right place. Maybe + # we should query the active gcc for info instead of hardcoding it ? + local i ldso_abi ldso_name + local ldso_abi_list=( + # x86 + amd64 /lib64/ld-linux-x86-64.so.2 + x32 /libx32/ld-linux-x32.so.2 + x86 /lib/ld-linux.so.2 + # mips + o32 /lib/ld.so.1 + n32 /lib32/ld.so.1 + n64 /lib64/ld.so.1 + # powerpc + ppc /lib/ld.so.1 + ppc64 /lib64/ld64.so.1 + # s390 + s390 /lib/ld.so.1 + s390x /lib/ld64.so.1 + # sparc + sparc32 /lib/ld-linux.so.2 + sparc64 /lib64/ld-linux.so.2 + ) + case $(tc-endian) in + little) + ldso_abi_list+=( + # arm + arm64 /lib/ld-linux-aarch64.so.1 + ) + ;; + big) + ldso_abi_list+=( + # arm + arm64 /lib/ld-linux-aarch64_be.so.1 + ) + ;; + esac + if [[ ${SYMLINK_LIB} == "yes" ]] && [[ ! -e ${ED}/$(alt_prefix)/lib ]] ; then + dosym $(get_abi_LIBDIR ${DEFAULT_ABI}) $(alt_prefix)/lib + fi + for (( i = 0; i < ${#ldso_abi_list[@]}; i += 2 )) ; do + ldso_abi=${ldso_abi_list[i]} + has ${ldso_abi} $(get_install_abis) || continue + + ldso_name="$(alt_prefix)${ldso_abi_list[i+1]}" + if [[ ! -L ${ED}/${ldso_name} && ! -e ${ED}/${ldso_name} ]] ; then + dosym ../$(get_abi_LIBDIR ${ldso_abi})/${ldso_name##*/} ${ldso_name} + fi + done + + # With devpts under Linux mounted properly, we do not need the pt_chown + # binary to be setuid. This is because the default owners/perms will be + # exactly what we want. + if in_iuse suid && ! use suid ; then + find "${ED}" -name pt_chown -exec chmod -s {} + + fi + + ################################################################# + # EVERYTHING AFTER THIS POINT IS FOR NATIVE GLIBC INSTALLS ONLY # + # Make sure we install some symlink hacks so that when we build + # a 2nd stage cross-compiler, gcc finds the target system + # headers correctly. See gcc/doc/gccinstall.info + if is_crosscompile ; then + # We need to make sure that /lib and /usr/lib always exists. + # gcc likes to use relative paths to get to its multilibs like + # /usr/lib/../lib64/. So while we don't install any files into + # /usr/lib/, we do need it to exist. + cd "${ED}"$(alt_libdir)/.. + [[ -e lib ]] || mkdir lib + cd "${ED}"$(alt_usrlibdir)/.. + [[ -e lib ]] || mkdir lib + + dosym usr/include $(alt_prefix)/sys-include + return 0 + fi + + # Files for Debian-style locale updating + dodir /usr/share/i18n + sed \ + -e "/^#/d" \ + -e "/SUPPORTED-LOCALES=/d" \ + -e "s: \\\\::g" -e "s:/: :g" \ + "${S}"/localedata/SUPPORTED > "${ED}"/usr/share/i18n/SUPPORTED \ + || die "generating /usr/share/i18n/SUPPORTED failed" + cd "${WORKDIR}"/extra/locale + dosbin locale-gen || die + doman *.[0-8] + insinto /etc + doins locale.gen || die + + # Make sure all the ABI's can find the locales and so we only + # have to generate one set + local a + keepdir /usr/$(get_libdir)/locale + for a in $(get_install_abis) ; do + if [[ ! -e ${ED}/usr/$(get_abi_LIBDIR ${a})/locale ]] ; then + dosym /usr/$(get_libdir)/locale /usr/$(get_abi_LIBDIR ${a})/locale + fi + done + + cd "${S}" + + # Install misc network config files + insinto /etc + doins nscd/nscd.conf posix/gai.conf nss/nsswitch.conf || die + doins "${WORKDIR}"/extra/etc/*.conf || die + + if ! in_iuse nscd || use nscd ; then + doinitd "${WORKDIR}"/extra/etc/nscd || die + + local nscd_args=( + -e "s:@PIDFILE@:$(strings "${ED}"/usr/sbin/nscd | grep nscd.pid):" + ) + version_is_at_least 2.16 || nscd_args+=( -e 's: --foreground : :' ) + sed -i "${nscd_args[@]}" "${ED}"/etc/init.d/nscd + + # Newer versions of glibc include the nscd.service themselves. + # TODO: Drop the $FILESDIR copy once 2.19 goes stable. + if version_is_at_least 2.19 ; then + systemd_dounit nscd/nscd.service || die + systemd_newtmpfilesd nscd/nscd.tmpfiles nscd.conf || die + else + systemd_dounit "${FILESDIR}"/nscd.service || die + systemd_newtmpfilesd "${FILESDIR}"/nscd.tmpfilesd nscd.conf || die + fi + else + # Do this since extra/etc/*.conf above might have nscd.conf. + rm -f "${ED}"/etc/nscd.conf + fi + + echo 'LDPATH="include ld.so.conf.d/*.conf"' > "${T}"/00glibc + doenvd "${T}"/00glibc || die + + for d in BUGS ChangeLog* CONFORMANCE FAQ NEWS NOTES PROJECTS README* ; do + [[ -s ${d} ]] && dodoc ${d} + done + + # Prevent overwriting of the /etc/localtime symlink. We'll handle the + # creation of the "factory" symlink in pkg_postinst(). + rm -f "${ED}"/etc/localtime +} + +toolchain-glibc_headers_install() { + local builddir=$(builddir "headers") + cd "${builddir}" + emake install_root="${D}$(alt_prefix)" install-headers || die + if ! version_is_at_least 2.16 ; then + insinto $(alt_headers)/bits + doins bits/stdio_lim.h || die + fi + insinto $(alt_headers)/gnu + doins "${S}"/include/gnu/stubs.h || die "doins include gnu" + # Make sure we install the sys-include symlink so that when + # we build a 2nd stage cross-compiler, gcc finds the target + # system headers correctly. See gcc/doc/gccinstall.info + dosym usr/include $(alt_prefix)/sys-include +} + +src_strip() { + # gdb is lame and requires some debugging information to remain in + # libpthread, so we need to strip it by hand. libthread_db makes no + # sense stripped as it is only used when debugging. + local pthread=$(has splitdebug ${FEATURES} && echo "libthread_db" || echo "lib{pthread,thread_db}") + env \ + -uRESTRICT \ + CHOST=${CTARGET} \ + STRIP_MASK="/*/{,tls/}${pthread}*" \ + prepallstrip + # if user has stripping enabled and does not have split debug turned on, + # then leave the debugging sections in libpthread. + if ! has nostrip ${FEATURES} && ! has splitdebug ${FEATURES} ; then + ${STRIP:-${CTARGET}-strip} --strip-debug "${ED}"/*/libpthread-*.so + fi +} + +toolchain-glibc_src_install() { + if just_headers ; then + export ABI=default + toolchain-glibc_headers_install + return + fi + + foreach_abi toolchain-glibc_do_src_install + src_strip +} + +# Simple test to make sure our new glibc isnt completely broken. +# Make sure we don't test with statically built binaries since +# they will fail. Also, skip if this glibc is a cross compiler. +# +# If coreutils is built with USE=multicall, some of these files +# will just be wrapper scripts, not actual ELFs we can test. +glibc_sanity_check() { + cd / #228809 + + # We enter ${ED} so to avoid trouble if the path contains + # special characters; for instance if the path contains the + # colon character (:), then the linker will try to split it + # and look for the libraries in an unexpected place. This can + # lead to unsafe code execution if the generated prefix is + # within a world-writable directory. + # (e.g. /var/tmp/portage:${HOSTNAME}) + pushd "${ED}"/$(get_libdir) >/dev/null + + local x striptest + for x in cal date env free ls true uname uptime ; do + x=$(type -p ${x}) + [[ -z ${x} || ${x} != ${EPREFIX}/* ]] && continue + striptest=$(LC_ALL="C" file -L ${x} 2>/dev/null) || continue + case ${striptest} in + *"statically linked"*) continue;; + *"ASCII text"*) continue;; + esac + # We need to clear the locale settings as the upgrade might want + # incompatible locale data. This test is not for verifying that. + LC_ALL=C \ + ./ld-*.so --library-path . ${x} > /dev/null \ + || die "simple run test (${x}) failed" + done + + popd >/dev/null +} + +toolchain-glibc_pkg_preinst() { + # nothing to do if just installing headers + just_headers && return + + # prepare /etc/ld.so.conf.d/ for files + mkdir -p "${EROOT}"/etc/ld.so.conf.d + + # Default /etc/hosts.conf:multi to on for systems with small dbs. + if [[ $(wc -l < "${EROOT}"/etc/hosts) -lt 1000 ]] ; then + sed -i '/^multi off/s:off:on:' "${ED}"/etc/host.conf + elog "Defaulting /etc/host.conf:multi to on" + fi + + [[ ${ROOT} != "/" ]] && return 0 + [[ -d ${ED}/$(get_libdir) ]] || return 0 + [[ -z ${BOOTSTRAP_RAP} ]] && glibc_sanity_check + + # For newer EAPIs, this was run in pkg_pretend. + if [[ ${EAPI:-0} == [0123] ]] ; then + check_devpts + fi +} + +toolchain-glibc_pkg_postinst() { + # nothing to do if just installing headers + just_headers && return + + if ! tc-is-cross-compiler && [[ -x ${EROOT}/usr/sbin/iconvconfig ]] ; then + # Generate fastloading iconv module configuration file. + "${EROOT}"/usr/sbin/iconvconfig --prefix="${ROOT}" + fi + + if ! is_crosscompile && [[ ${ROOT} == "/" ]] ; then + # Reload init ... if in a chroot or a diff init package, ignore + # errors from this step #253697 + /sbin/telinit U 2>/dev/null + + # if the host locales.gen contains no entries, we'll install everything + local locale_list="${EROOT}etc/locale.gen" + if [[ -z $(locale-gen --list --config "${locale_list}") ]] ; then + ewarn "Generating all locales; edit /etc/locale.gen to save time/space" + locale_list="${EROOT}usr/share/i18n/SUPPORTED" + fi + locale-gen -j $(makeopts_jobs) --config "${locale_list}" + fi +} + +_TOOLCHAIN_GLIBC_ECLASS=1 +fi -- cgit v1.2.3-65-gdbad