commit: 7b840b7e2d27e4e4ce83fdba6bd3424d1dde7648 Author: Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org> AuthorDate: Tue Oct 1 16:21:11 2024 +0000 Commit: Andreas K. Hüttel <dilfridge <AT> gentoo <DOT> org> CommitDate: Tue Oct 1 16:23:27 2024 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=7b840b7e
sys-libs/glibc: add 2.40-r4, patchlevel 4 bump, no keywords Signed-off-by: Andreas K. Hüttel <dilfridge <AT> gentoo.org> sys-libs/glibc/Manifest | 1 + sys-libs/glibc/glibc-2.40-r4.ebuild | 1746 +++++++++++++++++++++++++++++++++++ 2 files changed, 1747 insertions(+) diff --git a/sys-libs/glibc/Manifest b/sys-libs/glibc/Manifest index f1517abb416b..582c30ceef5e 100644 --- a/sys-libs/glibc/Manifest +++ b/sys-libs/glibc/Manifest @@ -25,6 +25,7 @@ DIST glibc-2.39-patches-6.tar.xz 87600 BLAKE2B 7bb24a16fb64ed07a7477dad075dfedd5 DIST glibc-2.39-patches-9.tar.xz 110948 BLAKE2B b958561bbc0fefa5982f0aa16dd02cc9cbd015d30d203c02d9ee72605aa51c3e25fac39759487c0deb382a793e3e0274e5585c5a4bd0036bcfaa30fc7dad9021 SHA512 d954a846c4308d4e16d3e878f1ed9ec62f3d78328043289a38cb15148ccf6b431e4a0f185e138300c141ba7e63247922f916ecbab2c8eeaa99d31c54b1ebd0fb DIST glibc-2.39.tar.xz 18520988 BLAKE2B 9d98459a2d58401e07c081e0d841935b23998da75a7eb5a7ebd23a1f9ebab99dee623fe166397c1b6c926960c570f62dbca5cb3b5ce84a918adff6b7a15e16bb SHA512 818f58172a52815b4338ea9f2a69ecaa3335492b9f8f64cbf8afb24c0d737982341968ecd79631cae3d3074ab0ae4bc6056fc4ba3ffe790849dc374835cd57e2 DIST glibc-2.40-patches-3.tar.xz 56044 BLAKE2B 79659397d36fb847cff01589489a90e36286dfe34c0e765fa05259518d8182d7e0f9666a577d699ef0c713071969bb0ec6358c1fbe053ba6cdc8828d08fdaa0b SHA512 5170a2912c7c5f5aa4513abc25402f419a5de56c477597e937b7920f0c652bca1704b4a4f74d12b960ee3bf4eb8985a98712c4dff485609047084caffffb0c95 +DIST glibc-2.40-patches-4.tar.xz 84180 BLAKE2B b64f9d75b8e85e1fa2f0cc685b4d34e9b23e790b57599586263210fa6981bacce31ed657b3921a8aec70fc5cb49676465fd237ed4c55a7116ba04fec4a06d667 SHA512 2efe04a4666540fb885c274f4d1aba4a91510c9dcaf2b9f2ad6316395691eb3458e27a2e4f12d45ea08335de58ef8e3895a3e32a603e6572d8179ffc32a66661 DIST glibc-2.40.tar.xz 18752204 BLAKE2B 8593cab5b2549b77159b6866fbb40b917e491fd5bc0814f7f85b6529166d78d4583436450c479b86cdfe468304fc4d2a9ba8294230a55dbc4c15e89c3ab6c000 SHA512 33caf91dbfddde6480b7cdf7a68b36aff8c522bfee56160af26af297f1b768668edb08bc4e1a7ff61c64721e3c1d49c347a5dd01c5edd3b914ee6479c8b27885 DIST glibc-systemd-20210729.tar.gz 1480 BLAKE2B 37722c7579df782d890e44dbab99c3de52ab466eb9de80d82405e9bb5620bf39ffc8c5f466a435bdb86ef6d36dd7019c0736573916bda6c67d02a2581e0ec979 SHA512 efd75af58b50522c28cdac7abd1fc56555bc1bb042512c90d8340c1ec09c5791b3872a305bf83723252bbde5855b75d958c041083457765c4cfd170732d09238 DIST glibc-systemd-20210814.tar.gz 1469 BLAKE2B 10fa7bcb46d4fdce9c0ab353cbd30871e9b09a347a13a9c9a3b5777f931aa3c826c158d2e49532c604d4a834f2fab4089b67495fb88d0398945dc50d45ad9ef1 SHA512 5346a9ea459a1e6ccf665389f2a294de1e16f1e3e05cdf07e3dd99ed0e4f6f8b52cc333d4bff3c75ac90ab6ce70cd4ab2b3e126f920ce7979abd6dda56315efc diff --git a/sys-libs/glibc/glibc-2.40-r4.ebuild b/sys-libs/glibc/glibc-2.40-r4.ebuild new file mode 100644 index 000000000000..5a117ed80c89 --- /dev/null +++ b/sys-libs/glibc/glibc-2.40-r4.ebuild @@ -0,0 +1,1746 @@ +# Copyright 1999-2024 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=8 + +# Bumping notes: https://wiki.gentoo.org/wiki/Project:Toolchain/sys-libs/glibc +# Please read & adapt the page as necessary if obsolete. + +PYTHON_COMPAT=( python3_{10..12} ) +TMPFILES_OPTIONAL=1 + +EMULTILIB_PKG="true" + +# Gentoo patchset (ignored for live ebuilds) +PATCH_VER=4 +PATCH_DEV=dilfridge + +# gcc mulitilib bootstrap files version +GCC_BOOTSTRAP_VER=20201208 + +# systemd integration version +GLIBC_SYSTEMD_VER=20210729 + +# Minimum kernel version that glibc requires +MIN_KERN_VER="3.2.0" + +# Minimum pax-utils version needed (which contains any new syscall changes for +# its seccomp filter!). Please double check this! +MIN_PAX_UTILS_VER="1.3.3" + +# Minimum systemd version needed (which contains any new syscall changes for +# its seccomp filter!). Please double check this! +MIN_SYSTEMD_VER="254.9-r1" + +inherit python-any-r1 prefix preserve-libs toolchain-funcs flag-o-matic gnuconfig \ + multilib systemd multiprocessing tmpfiles + +DESCRIPTION="GNU libc C library" +HOMEPAGE="https://www.gnu.org/software/libc/"; + +if [[ ${PV} == 9999* ]]; then + inherit git-r3 +else + #KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86" + SRC_URI="mirror://gnu/glibc/${P}.tar.xz" + SRC_URI+=" https://dev.gentoo.org/~${PATCH_DEV}/distfiles/${P}-patches-${PATCH_VER}.tar.xz"; +fi + +SRC_URI+=" multilib-bootstrap? ( https://dev.gentoo.org/~dilfridge/distfiles/gcc-multilib-bootstrap-${GCC_BOOTSTRAP_VER}.tar.xz )" +SRC_URI+=" systemd? ( https://gitweb.gentoo.org/proj/toolchain/glibc-systemd.git/snapshot/glibc-systemd-${GLIBC_SYSTEMD_VER}.tar.gz )" + +LICENSE="LGPL-2.1+ BSD HPND ISC inner-net rc PCRE" +SLOT="2.2" +IUSE="audit caps cet compile-locales custom-cflags doc gd hash-sysv-compat headers-only +multiarch multilib multilib-bootstrap nscd perl profile selinux +ssp stack-realign +static-libs suid systemd systemtap test vanilla" + +# Here's how the cross-compile logic breaks down ... +# CTARGET - machine that will target the binaries +# CHOST - machine that will host the binaries +# CBUILD - machine that will build the binaries +# If CTARGET != CHOST, it means you want a libc for cross-compiling. +# If CHOST != CBUILD, it means you want to cross-compile the libc. +# CBUILD = CHOST = CTARGET - native build/install +# CBUILD != (CHOST = CTARGET) - cross-compile a native build +# (CBUILD = CHOST) != CTARGET - libc for cross-compiler +# CBUILD != CHOST != CTARGET - cross-compile a libc for a cross-compiler +# For install paths: +# CHOST = CTARGET - install into / +# CHOST != CTARGET - install into /usr/CTARGET/ +# +export CBUILD=${CBUILD:-${CHOST}} +export CTARGET=${CTARGET:-${CHOST}} +if [[ ${CTARGET} == ${CHOST} ]] ; then + if [[ ${CATEGORY} == cross-* ]] ; then + export CTARGET=${CATEGORY#cross-} + fi +fi + +# Note [Disable automatic stripping] +# Disabling automatic stripping for a few reasons: +# - portage's attempt to strip breaks non-native binaries at least on +# arm: bug #697428 +# - portage's attempt to strip libpthread.so.0 breaks gdb thread +# enumeration: bug #697910. This is quite subtle: +# * gdb uses glibc's libthread_db-1.0.so to enumerate threads. +# * libthread_db-1.0.so needs access to libpthread.so.0 local symbols +# via 'ps_pglobal_lookup' symbol defined in gdb. +# * 'ps_pglobal_lookup' uses '.symtab' section table to resolve all +# known symbols in 'libpthread.so.0'. Specifically 'nptl_version' +# (unexported) is used to sanity check compatibility before enabling +# debugging. +# Also see https://sourceware.org/gdb/wiki/FAQ#GDB_does_not_see_any_threads_besides_the_one_in_which_crash_occurred.3B_or_SIGTRAP_kills_my_program_when_I_set_a_breakpoint +# * normal 'strip' command trims '.symtab' +# Thus our main goal here is to prevent 'libpthread.so.0' from +# losing it's '.symtab' entries. +# - similarly, valgrind requires knowledge about symbols in ld.so: +# bug #920753 +# As Gentoo's strip does not allow us to pass less aggressive stripping +# options and does not check the machine target we strip selectively. + +# We need a new-enough binutils/gcc to match upstream baseline. +# Also we need to make sure our binutils/gcc supports TLS, +# and that gcc already contains the hardened patches. +# Lastly, let's avoid some openssh nastiness, bug 708224, as +# convenience to our users. + +IDEPEND=" + !compile-locales? ( sys-apps/locale-gen ) +" +BDEPEND=" + ${PYTHON_DEPS} + >=app-misc/pax-utils-${MIN_PAX_UTILS_VER} + sys-devel/bison + compile-locales? ( sys-apps/locale-gen ) + doc? ( + dev-lang/perl + sys-apps/texinfo + ) + test? ( + dev-lang/perl + >=net-dns/libidn2-2.3.0 + ) +" +COMMON_DEPEND=" + gd? ( media-libs/gd:2= ) + nscd? ( selinux? ( + audit? ( sys-process/audit ) + caps? ( sys-libs/libcap ) + ) ) + suid? ( caps? ( sys-libs/libcap ) ) + selinux? ( sys-libs/libselinux ) + systemtap? ( dev-debug/systemtap ) +" +DEPEND="${COMMON_DEPEND} +" +RDEPEND="${COMMON_DEPEND} + !<app-misc/pax-utils-${MIN_PAX_UTILS_VER} + !<sys-apps/systemd-${MIN_SYSTEMD_VER} + perl? ( dev-lang/perl ) +" + +RESTRICT="!test? ( test )" + +if [[ ${CATEGORY} == cross-* ]] ; then + BDEPEND+=" !headers-only? ( + >=${CATEGORY}/binutils-2.27 + >=${CATEGORY}/gcc-6.2 + )" + [[ ${CATEGORY} == *-linux* ]] && DEPEND+=" ${CATEGORY}/linux-headers" +else + BDEPEND+=" + >=sys-devel/binutils-2.27 + >=sys-devel/gcc-6.2 + " + DEPEND+=" virtual/os-headers " + RDEPEND+=" + >=net-dns/libidn2-2.3.0 + vanilla? ( !sys-libs/timezone-data ) + " + PDEPEND+=" !vanilla? ( sys-libs/timezone-data )" +fi + +# Ignore tests whitelisted below +GENTOO_GLIBC_XFAIL_TESTS="${GENTOO_GLIBC_XFAIL_TESTS:-yes}" + +# The following tests fail due to the Gentoo build system and are thus +# executed but ignored: +XFAIL_TEST_LIST=( + # buggy test, assumes /dev/ and /dev/null on a single filesystem + # 'mount --bind /dev/null /chroot/dev/null' breaks it. + # https://sourceware.org/PR25909 + tst-support_descriptors + + # The following tests fail only inside portage + # https://bugs.gentoo.org/831267 + tst-system + tst-strerror + tst-strsignal + + # Fails with certain PORTAGE_NICENESS/PORTAGE_SCHEDULING_POLICY + tst-sched1 + + # Fails regularly, unreliable + tst-valgrind-smoke + + # https://sourceware.org/bugzilla/show_bug.cgi?id=31877 (bug #927973) + tst-shstk-legacy-1g +) + +XFAIL_NSPAWN_TEST_LIST=( + # These tests need to be adapted to handle EPERM/ENOSYS(?) properly + # upstream, as systemd-nspawn's default seccomp whitelist is too strict. + # https://sourceware.org/PR30603 + test-errno-linux + tst-bz21269 + tst-mlock2 + tst-ntp_gettime + tst-ntp_gettime-time64 + tst-ntp_gettimex + tst-ntp_gettimex-time64 + tst-pkey + tst-process_mrelease + tst-adjtime + tst-adjtime-time64 + tst-clock2 + tst-clock2-time64 + + # These fail if --suppress-sync and/or low priority is set + tst-sync_file_range + test-errno +) + +# +# Small helper functions +# + +dump_build_environment() { + einfo ==== glibc build environment ======================================================== + local v + for v in ABI CBUILD CHOST CTARGET CBUILD_OPT CTARGET_OPT CC CXX CPP LD \ + {AS,C,CPP,CXX,LD}FLAGS MAKEINFO NM AR AS STRIP RANLIB OBJCOPY \ + STRINGS OBJDUMP READELF; do + einfo " $(printf '%15s' ${v}:) ${!v}" + done + einfo ===================================================================================== +} + +is_crosscompile() { + [[ ${CHOST} != ${CTARGET} ]] +} + +just_headers() { + is_crosscompile && use headers-only +} + +alt_prefix() { + is_crosscompile && echo /usr/${CTARGET} +} + +# This prefix is applicable to CHOST when building against this +# glibc. It is baked into the library at configure time. +host_eprefix() { + is_crosscompile || echo "${EPREFIX}" +} + +# This prefix is applicable to CBUILD when building against this +# glibc. It determines the destination path at install time. +build_eprefix() { + is_crosscompile && echo "${EPREFIX}" +} + +# 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. +alt_headers() { + echo ${ALT_HEADERS:=$(alt_prefix)/usr/include} +} + +alt_build_headers() { + if [[ -z ${ALT_BUILD_HEADERS} ]] ; then + ALT_BUILD_HEADERS="$(host_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 <linux/version.h>' \ + | $(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}-$1" +} + +do_compile_test() { + local ret save_cflags=${CFLAGS} + CFLAGS+=" $1" + shift + + pushd "${T}" >/dev/null + + rm -f glibc-test* + printf '%b' "$*" > glibc-test.c + + # We assume CC is already set up. + nonfatal emake glibc-test + ret=$? + + popd >/dev/null + + CFLAGS=${save_cflags} + return ${ret} +} + +do_run_test() { + local ret + + if [[ ${MERGE_TYPE} == "binary" ]] ; then + # ignore build failures when installing a binary package #324685 + do_compile_test "" "$@" 2>/dev/null || return 0 + else + if ! do_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} +} + +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 $(tc-arch) in + x86) + # -march needed for #185404 #199334 + # TODO: When creating the first glibc cross-compile, this test will + # always fail as it does a full link which in turn requires glibc. + # Probably also applies when changing multilib profile settings (e.g. + # enabling x86 when the profile was amd64-only previously). + # We could change main to _start and pass -nostdlib here so that we + # only test the gcc code compilation. Or we could do a compile and + # then look for the symbol via scanelf. + if ! do_compile_test "" 'void f(int i, void *p) {if (__sync_fetch_and_add(&i, 1)) f(i, p);}\nint main(){return 0;}\n'; then + local t=${CTARGET_OPT:-${CTARGET}} + t=${t%%-*} + filter-flags '-march=*' + export CFLAGS="-march=${t} ${CFLAGS}" + einfo "Auto adding -march=${t} to CFLAGS #185404" + fi + # For compatibility with older binaries at slight performance cost. + use stack-realign && export CFLAGS+=" -mstackrealign" + ;; + amd64) + # -march needed for #185404 #199334 + # TODO: See cross-compile issues listed above for x86. + if [[ ${ABI} == x86 ]]; then + if ! do_compile_test "${CFLAGS_x86}" 'void f(int i, void *p) {if (__sync_fetch_and_add(&i, 1)) f(i, p);}\nint main(){return 0;}\n'; 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=${t} to CFLAGS_x86 #185404 (ABI=${ABI})" + fi + # For compatibility with older binaries at slight performance cost. + use stack-realign && export CFLAGS_x86+=" -mstackrealign" + fi + ;; + mips) + # The mips abi cannot support the GNU style hashes. #233233 + filter-ldflags -Wl,--hash-style=gnu -Wl,--hash-style=both + ;; + ppc|ppc64) + # Many arch-specific implementations do not work on ppc with + # cache-block not equal to 128 bytes. This breaks memset: + # https://sourceware.org/PR26522 + # https://bugs.gentoo.org/737996 + # Use default -mcpu=. For ppc it means non-multiarch setup. + filter-flags '-mcpu=*' + ;; + sparc) + # Both sparc and sparc64 can use -fcall-used-g6. -g7 is bad, though. + filter-flags "-fcall-used-g7" + append-flags "-fcall-used-g6" + + local cpu + case ${CTARGET} in + sparc64-*) + cpu="sparc64" + case $(get-flag mcpu) in + v9) + # 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 + append-flags "-Wa,-xarch=v9a" + ;; + esac + ;; + sparc-*) + case $(get-flag mcpu) in + v8|supersparc|hypersparc|leon|leon3) + cpu="sparcv8" + ;; + *) + cpu="sparcv9" + ;; + 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=${ASFLAGS_BASE} + + # Allow users to explicitly avoid flag sanitization via + # USE=custom-cflags. + if ! use custom-cflags; then + # Over-zealous CFLAGS can often cause problems. What may work for one + # person may not work for another. To avoid a large influx of bugs + # relating to failed builds, we strip most CFLAGS out to ensure as few + # problems as possible. + strip-flags + + # Allow -O2 and -O3, but nothing else for now. + # TODO: Test -Os, -Oz. + if ! is-flagq '-O@(2|3)' ; then + # Lock glibc at -O2. We want to be conservative here. + filter-flags '-O?' + append-flags -O2 + fi + fi + + strip-unsupported-flags + filter-lto + filter-flags -m32 -m64 '-mabi=*' + + # glibc aborts if rpath is set by LDFLAGS + filter-ldflags '-Wl,-rpath=*' + + # ld can't use -r & --relax at the same time, bug #788901 + # https://sourceware.org/PR27837 + filter-ldflags '-Wl,--relax' + + # Flag added for cross-prefix, but causes ldconfig to segfault. Not needed + # anyway because glibc already handles this by itself. + filter-ldflags '-Wl,--dynamic-linker=*' + + # some weird software relies on sysv hashes in glibc, bug 863863, bug 864100 + # we have to do that here already so mips can filter it out again :P + if use hash-sysv-compat ; then + append-ldflags '-Wl,--hash-style=both' + fi + + # #492892 + filter-flags -frecord-gcc-switches + + # #898098 + filter-flags -fno-builtin + + # #798774 + filter-flags -fno-semantic-interposition + + # #829583 + filter-lfs-flags + + unset CBUILD_OPT CTARGET_OPT + if use multilib ; then + CTARGET_OPT=$(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 + + # glibc's headers disallow -O0 and fail at build time: + # include/libc-symbols.h:75:3: #error "glibc cannot be compiled without optimization" + # https://sourceware.org/glibc/wiki/FAQ#Why_do_I_get:.60.23error_.22glibc_cannot_be_compiled_without_optimization.22.27.2C_when_trying_to_compile_GNU_libc_with_GNU_CC.3F + replace-flags -O0 -O1 + + # glibc handles this internally already where it's appropriate; + # can't always have SSP when we're the ones setting it up, etc + filter-flags '-fstack-protector*' + + # Similar issues as with SSP. Can't inject yourself that early. + filter-flags '-fsanitize=*' + + # See end of bug #830454; we handle this via USE=cet + filter-flags '-fcf-protection=*' + + # When bootstrapping, we may have a situation where + # CET-enabled gcc from seed is used to build CET-disabled + # glibc. As such, gcc implicitly enables CET if no + # -fcf-protection flag is passed. For a typical package it + # should not be a problem, but for glibc it matters as it is + # dealing with CET in ld.so. So if CET is supposed to be + # disabled for glibc, be explicit about it. + if ! use cet; then + case ${ABI}-${CTARGET} in + amd64-x86_64-*|x32-x86_64-*-*-gnux32) + append-flags '-fcf-protection=none' + ;; + arm64-aarch64*) + append-flags '-mbranch-protection=none' + ;; + esac + fi +} + +use_multiarch() { + # Allow user to disable runtime arch detection in multilib. + use multiarch || return 1 + # 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 support 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 + ver_test ${bver} -ge ${nver} +} + +# 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:-${DEFAULT_ABI}} + fi + + # If the user has CFLAGS_<CTARGET> in their make.conf, use that, + # and fall back on CFLAGS. + local VAR=CFLAGS_${CTARGET//[-.]/_} + CFLAGS=${!VAR-${CFLAGS}} + einfo " $(printf '%15s' 'Manual CFLAGS:') ${CFLAGS}" + fi + + setup_flags + + export ABI=${ABI:-${DEFAULT_ABI:-default}} + + if just_headers ; then + # Avoid mixing host's CC and target's CFLAGS_${ABI}: + # At this bootstrap stage we have only binutils for + # target but not compiler yet. + einfo "Skip CC ABI injection. We can't use (cross-)compiler yet." + return 0 + fi + + # glibc does not work with non-bfd (for various reasons): + # * gold (bug #269274) + # * mold (bug #860900) + tc-ld-force-bfd + + if use doc ; then + export MAKEINFO=makeinfo + else + export MAKEINFO=/dev/null + fi + + # Reset CC and CXX to the value at start of emerge + export CC=${glibc__ORIG_CC:-${CC:-$(tc-getCC ${CTARGET})}} + export CXX=${glibc__ORIG_CXX:-${CXX:-$(tc-getCXX ${CTARGET})}} + export CPP=${glibc__ORIG_CPP:-${CPP:-$(tc-getCPP ${CTARGET})}} + + # and make sure glibc__ORIG_CC and glibc__ORIG_CXX is defined now. + export glibc__ORIG_CC=${CC} + export glibc__ORIG_CXX=${CXX} + export glibc__ORIG_CPP=${CPP} + + if tc-is-clang && ! use custom-cflags && ! is_crosscompile ; then + export glibc__force_gcc=yes + # once this is toggled on, it needs to stay on, since with CPP manipulated + # tc-is-clang does not work correctly anymore... + fi + + if [[ ${glibc__force_gcc} == "yes" ]] ; then + # If we are running in an otherwise clang/llvm environment, we need to + # recover the proper gcc and binutils settings here, at least until glibc + # is finally building with clang. So let's override everything that is + # set in the clang profiles. + # Want to shoot yourself into the foot? Set USE=custom-cflags, that's always + # a good start into that direction. + # Also, if you're crosscompiling, let's assume you know what you are doing. + # Hopefully. + # Last, we need the settings of the *build* environment, not of the + # target environment... + + local current_binutils_path=$(env ROOT="${BROOT}" binutils-config -B) + local current_gcc_path=$(env ROOT="${BROOT}" gcc-config -B) + einfo "Overriding clang configuration, since it won't work here" + + export CC="${current_gcc_path}/gcc" + export CPP="${current_gcc_path}/cpp" + export CXX="${current_gcc_path}/g++" + export LD="${current_binutils_path}/ld.bfd" + export AR="${current_binutils_path}/ar" + export AS="${current_binutils_path}/as" + export NM="${current_binutils_path}/nm" + export STRIP="${current_binutils_path}/strip" + export RANLIB="${current_binutils_path}/ranlib" + export OBJCOPY="${current_binutils_path}/objcopy" + export STRINGS="${current_binutils_path}/strings" + export OBJDUMP="${current_binutils_path}/objdump" + export READELF="${current_binutils_path}/readelf" + export ADDR2LINE="${current_binutils_path}/addr2line" + + # do we need to also do flags munging here? yes! at least... + filter-flags '-fuse-ld=*' + filter-flags '-D_FORTIFY_SOURCE=*' + + else + + # this is the "normal" case + + export CC="$(tc-getCC ${CTARGET})" + export CXX="$(tc-getCXX ${CTARGET})" + export CPP="$(tc-getCPP ${CTARGET})" + + # Always use tuple-prefixed toolchain. For non-native ABI glibc's configure + # can't detect them automatically due to ${CHOST} mismatch and fallbacks + # to unprefixed tools. Similar to multilib.eclass:multilib_toolchain_setup(). + export NM="$(tc-getNM ${CTARGET})" + export READELF="$(tc-getREADELF ${CTARGET})" + + fi + + # We need to export CFLAGS with abi information in them because glibc's + # configure script checks CFLAGS for some targets (like mips). Keep + # around the original clean value to avoid appending multiple ABIs on + # top of each other. (Why does the comment talk about CFLAGS if the code + # acts on CC?) + export glibc__GLIBC_CC=${CC} + export glibc__GLIBC_CXX=${CXX} + export glibc__GLIBC_CPP=${CPP} + + export glibc__abi_CFLAGS="$(get_abi_CFLAGS)" + + # CFLAGS can contain ABI-specific flags like -mfpu=neon, see bug #657760 + # To build .S (assembly) files with the same ABI-specific flags + # upstream currently recommends adding CFLAGS to CC/CXX: + # https://sourceware.org/PR23273 + # Note: Passing CFLAGS via CPPFLAGS overrides glibc's arch-specific CFLAGS + # and breaks multiarch support. See 659030#c3 for an example. + # The glibc configure script doesn't properly use LDFLAGS all the time. + export CC="${glibc__GLIBC_CC} ${glibc__abi_CFLAGS} ${CFLAGS} ${LDFLAGS}" + + # Some of the tests are written in C++, so we need to force our multlib abis in, bug 623548 + export CXX="${glibc__GLIBC_CXX} ${glibc__abi_CFLAGS} ${CFLAGS}" + + export CPP="${glibc__GLIBC_CPP} ${glibc__abi_CFLAGS} ${CFLAGS}" + + if is_crosscompile; then + # Assume worst-case bootstrap: glibc is built for the first time + # with ${CTARGET}-g++ not available yet. We avoid + # building auxiliary programs that require C++: bug #683074 + # It should not affect final result. + export libc_cv_cxx_link_ok=no + # The line above has the same effect. We set CXX explicitly + # to make build logs less confusing. + export CXX= + fi +} + +foreach_abi() { + setup_env + + local ret=0 + local abilist="" + if use multilib ; then + abilist=$(get_install_abis) + else + abilist=${DEFAULT_ABI} + fi + local -x ABI + for ABI in ${abilist:-default} ; do + setup_env + einfo "Running $1 for ABI ${ABI}" + $1 + : $(( ret |= $? )) + done + return ${ret} +} + +glibc_banner() { + local b="Gentoo ${PVR}" + [[ -n ${PATCH_VER} ]] && ! use vanilla && b+=" (patchset ${PATCH_VER})" + echo "${b}" +} + +# The following Kernel version handling functions are mostly copied from portage +# source. It's better not to use linux-info.eclass here since a) it adds too +# much magic, see bug 326693 for some of the arguments, and b) some of the +# functions are just not provided. + +g_get_running_KV() { + uname -r + return $? +} + +g_KV_major() { + [[ -z $1 ]] && return 1 + local KV=$@ + echo "${KV%%.*}" +} + +g_KV_minor() { + [[ -z $1 ]] && return 1 + local KV=$@ + KV=${KV#*.} + echo "${KV%%.*}" +} + +g_KV_micro() { + [[ -z $1 ]] && return 1 + local KV=$@ + KV=${KV#*.*.} + echo "${KV%%[^[:digit:]]*}" +} + +g_KV_to_int() { + [[ -z $1 ]] && return 1 + local KV_MAJOR=$(g_KV_major "$1") + local KV_MINOR=$(g_KV_minor "$1") + local KV_MICRO=$(g_KV_micro "$1") + local KV_int=$(( KV_MAJOR * 65536 + KV_MINOR * 256 + KV_MICRO )) + + # We make version 2.2.0 the minimum version we will handle as + # a sanity check ... if its less, we fail ... + if [[ ${KV_int} -ge 131584 ]] ; then + echo "${KV_int}" + return 0 + fi + return 1 +} + +g_int_to_KV() { + local version=$1 major minor micro + major=$((version / 65536)) + minor=$(((version % 65536) / 256)) + micro=$((version % 256)) + echo ${major}.${minor}.${micro} +} + +eend_KV() { + [[ $(g_KV_to_int $1) -ge $(g_KV_to_int $2) ]] + eend $? +} + +get_kheader_version() { + printf '#include <linux/version.h>\nLINUX_VERSION_CODE\n' | \ + $(tc-getCPP ${CTARGET}) -I "$(build_eprefix)$(alt_build_headers)" - | \ + tail -n 1 +} + +# We collect all sanity checks here. Consistency is not guranteed between +# pkg_ and src_ phases, so we call this function both in pkg_pretend and in +# src_unpack. +sanity_prechecks() { + # Prevent native builds from downgrading + if [[ ${MERGE_TYPE} != "buildonly" ]] && \ + [[ -z ${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." + [[ ${I_ALLOW_TO_BREAK_MY_SYSTEM} = yes ]] || die "Aborting to save your system." + fi + + if ! do_run_test '#include <unistd.h>\n#include <sys/syscall.h>\nint main(){return syscall(1000)!=-1;}\n' ; then + eerror "Your old kernel is broken. You need to update it to a newer" + eerror "version as syscall(<bignum>) will break. See bug 279260." + die "Old and broken kernel." + fi + 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 https://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 + + # ABI-specific checks follow here. Hey, we have a lot more specific conditions that + # we test for... + if ! is_crosscompile ; then + if use amd64 && use multilib && [[ ${MERGE_TYPE} != "binary" ]] ; then + ebegin "Checking if the system can execute 32-bit binaries" + echo 'int main(){return 0;}' > "${T}/check-ia32-emulation.c" + local STAT + if ${CC-${CHOST}-gcc} ${CFLAGS_x86} "${T}/check-ia32-emulation.c" -o "${T}/check-ia32-emulation.elf32"; then + "${T}/check-ia32-emulation.elf32" + STAT=$? + else + # Don't fail here to allow single->multi ABI switch + # or recover from breakage like bug #646424 + ewarn "Failed to compile the ABI test. Broken host glibc?" + STAT=0 + fi + rm -f "${T}/check-ia32-emulation.elf32" + eend $STAT + if [[ $STAT -ne 0 ]]; then + eerror "Ensure that CONFIG_IA32_EMULATION is enabled in the kernel." + eerror "Seek support otherwise." + die "Unable to execute 32-bit binaries" + fi + fi + + fi + + # When we actually have to compile something... + if ! just_headers && [[ ${MERGE_TYPE} != "binary" ]] ; then + if [[ -d "${ESYSROOT}"/usr/lib/include ]] ; then + # bug #833620, bug #643302 + eerror "Found ${ESYSROOT}/usr/lib/include directory!" + eerror "This is known to break glibc's build." + eerror "Please backup its contents then remove the directory." + die "Found directory (${ESYSROOT}/usr/lib/include) which will break build (bug #833620)!" + fi + + if [[ ${CTARGET} == *-linux* ]] ; then + local run_kv build_kv want_kv + + run_kv=$(g_get_running_KV) + build_kv=$(g_int_to_KV $(get_kheader_version)) + want_kv=${MIN_KERN_VER} + + if ! is_crosscompile && ! tc-is-cross-compiler ; then + # Building fails on an non-supporting kernel + ebegin "Checking running 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}!" + die "Kernel version too low!" + fi + fi + + # Do not run this check for pkg_pretend, just pkg_setup and friends (if we ever get used there). + # It's plausible (seen it in the wild) that Portage will (correctly) schedule a linux-headers + # upgrade before glibc, but because pkg_pretend gets run before any packages are merged at all (not + # just glibc), the whole emerge gets aborted without a good reason. We probably don't + # need to run this check at all given we have a dependency on the right headers, + # but let's leave it as-is for now. + if [[ ${EBUILD_PHASE_FUNC} != pkg_pretend ]] ; then + ebegin "Checking linux-headers version (${build_kv} >= ${want_kv})" + if ! eend_KV ${build_kv} ${want_kv} ; then + echo + eerror "You need linux-headers of at least ${want_kv}!" + die "linux-headers version too low!" + fi + fi + fi + fi +} + +upgrade_warning() { + is_crosscompile && return + + if [[ ${MERGE_TYPE} != buildonly && -n ${REPLACING_VERSIONS} && -z ${ROOT} ]]; then + local oldv newv=$(ver_cut 1-2 ${PV}) + for oldv in ${REPLACING_VERSIONS}; do + if ver_test ${oldv} -lt ${newv}; then + ewarn "After upgrading glibc, please restart all running processes." + ewarn "Be sure to include init (telinit u) or systemd (systemctl daemon-reexec)." + ewarn "Alternatively, reboot your system." + ewarn "(See bug #660556, bug #741116, bug #823756, etc)" + break + fi + done + fi +} + +# +# the phases +# + +# pkg_pretend + +pkg_pretend() { + upgrade_warning +} + +# pkg_setup + +pkg_setup() { + # see bug 682570 + [[ -z ${BOOTSTRAP_RAP} ]] && python-any-r1_pkg_setup +} + +# src_unpack + +src_unpack() { + setup_env + + einfo "Checking general environment sanity." + sanity_prechecks + + use multilib-bootstrap && unpack gcc-multilib-bootstrap-${GCC_BOOTSTRAP_VER}.tar.xz + + if [[ ${PV} == 9999* ]] ; then + EGIT_REPO_URI="https://anongit.gentoo.org/git/proj/toolchain/glibc-patches.git"; + EGIT_CHECKOUT_DIR=${WORKDIR}/patches-git + git-r3_src_unpack + mv patches-git/9999 patches || die + + EGIT_REPO_URI="https://sourceware.org/git/glibc.git"; + EGIT_CHECKOUT_DIR=${S} + git-r3_src_unpack + else + unpack ${P}.tar.xz + + cd "${WORKDIR}" || die + unpack glibc-${PV}-patches-${PATCH_VER}.tar.xz + fi + + cd "${WORKDIR}" || die + use systemd && unpack glibc-systemd-${GLIBC_SYSTEMD_VER}.tar.gz +} + +# src_prepare + +src_prepare() { + local patchsetname + if ! use vanilla ; then + if [[ ${PV} == 9999* ]] ; then + patchsetname="from git master" + else + patchsetname="${PV}-${PATCH_VER}" + fi + einfo "Applying Gentoo Glibc patchset ${patchsetname}" + eapply "${WORKDIR}"/patches + einfo "Done." + fi + + default + + gnuconfig_update + + cd "${WORKDIR}" || die + find . -name configure -exec touch {} + + + # Fix permissions on some of the scripts. + chmod u+x "${S}"/scripts/*.sh + + cd "${S}" || die +} + +# src_configure + +glibc_do_configure() { + dump_build_environment + + local myconf=() + + # Use '=strong' instead of '=all' to protect only functions + # worth protecting from stack smashes. + myconf+=( --enable-stack-protector=$(usex ssp strong no) ) + + # Keep a whitelist of targets supporting IFUNC. glibc's ./configure + # is not robust enough to detect proper support: + # https://bugs.gentoo.org/641216 + # https://sourceware.org/PR22634#c0 + case $(tc-arch ${CTARGET}) in + # Keep whitelist of targets where autodetection mostly works. + amd64|x86|sparc|ppc|ppc64|arm|arm64|s390|riscv|loong) ;; + # Blacklist everywhere else + *) myconf+=( libc_cv_ld_gnu_indirect_function=no ) ;; + esac + + case ${ABI}-${CTARGET} in + amd64-x86_64-*|x32-x86_64-*-*-gnux32) myconf+=( $(use_enable cet) ) ;; + *) ;; + esac + + [[ $(tc-is-softfloat) == "yes" ]] && myconf+=( --without-fp ) + + myconf+=( --enable-kernel=${MIN_KERN_VER} ) + + # Since SELinux support is only required for nscd, only enable it if: + # 1. USE selinux + # 2. only for the primary ABI on multilib systems + # 3. Not a crosscompile + if ! is_crosscompile && use selinux ; then + if use multilib ; then + if is_final_abi ; then + myconf+=( --with-selinux ) + else + myconf+=( --without-selinux ) + fi + else + myconf+=( --with-selinux ) + fi + else + myconf+=( --without-selinux ) + fi + + # Force a few tests where we always know the answer but + # configure is incapable of finding it. + if is_crosscompile ; then + export \ + libc_cv_c_cleanup=yes \ + libc_cv_forced_unwind=yes + fi + + myconf+=( + --disable-werror + --enable-bind-now + --enable-fortify-source + --build=${CBUILD_OPT:-${CBUILD}} + --host=${CTARGET_OPT:-${CTARGET}} + $(use_enable profile) + $(use_with gd) + --with-headers=$(build_eprefix)$(alt_build_headers) + --prefix="$(host_eprefix)/usr" + --sysconfdir="$(host_eprefix)/etc" + --localstatedir="$(host_eprefix)/var" + --libdir='$(prefix)'/$(get_libdir) + --mandir='$(prefix)'/share/man + --infodir='$(prefix)'/share/info + --libexecdir='$(libdir)'/misc/glibc + --with-bugurl=https://bugs.gentoo.org/ + --with-pkgversion="$(glibc_banner)" + $(use_multiarch || echo --disable-multi-arch) + $(use_enable systemtap) + $(use_enable nscd) + + # /usr/bin/mtrace has a Perl shebang. Gentoo Prefix QA checks fail if + # Perl hasn't been installed inside the prefix yet and configure picks + # up a Perl from outside the prefix instead. configure will fail to + # execute Perl during configure if we're cross-compiling a prefix, but + # it will just disable mtrace in that case. + # Note: mtrace is needed by the test suite. + ac_cv_path_PERL="$(usex perl "${EPREFIX}"/usr/bin/perl $(usex test "${EPREFIX}"/usr/bin/perl $(usex doc "${EPREFIX}"/usr/bin/perl no)))" + + # locale data is arch-independent + # https://bugs.gentoo.org/753740 + libc_cv_complocaledir='${exec_prefix}/lib/locale' + + # On aarch64 there is no way to override -mcpu=native, and if + # the current cpu does not support SVE configure fails. + # Let's boldly assume our toolchain can always build SVE instructions. + libc_cv_aarch64_sve_asm=yes + + ${EXTRA_ECONF} + ) + + # We rely on sys-libs/timezone-data for timezone tools normally. + myconf+=( $(use_enable vanilla timezone-tools) ) + + # These libs don't have configure flags. + ac_cv_lib_audit_audit_log_user_avc_message=$(usex audit || echo no) + ac_cv_lib_cap_cap_init=$(usex caps || echo no) + + # There is no configure option for this and we need to export it + # since the glibc build will re-run configure on itself + export libc_cv_rootsbindir="$(host_eprefix)/sbin" + export libc_cv_slibdir="$(host_eprefix)/$(get_libdir)" + + local builddir=$(builddir nptl) + mkdir -p "${builddir}" + cd "${builddir}" + set -- "${S}"/configure "${myconf[@]}" + echo "$@" + "$@" || die "failed to configure glibc" + + # If we're trying to migrate between ABI sets, we need + # to lie and use a local copy of gcc. Like if the system + # is built with MULTILIB_ABIS="amd64 x86" but we want to + # add x32 to it, gcc/glibc don't yet support x32. + # + if [[ -n ${GCC_BOOTSTRAP_VER} ]] && use multilib-bootstrap ; then + echo 'int main(void){}' > "${T}"/test.c || die + if ! $(tc-getCC ${CTARGET}) ${CFLAGS} ${LDFLAGS} "${T}"/test.c -Wl,-emain -lgcc 2>/dev/null ; then + sed -i -e '/^CC = /s:$: -B$(objdir)/../'"gcc-multilib-bootstrap-${GCC_BOOTSTRAP_VER}/${ABI}:" config.make || die + fi + fi +} + +glibc_headers_configure() { + export ABI=default + + local builddir=$(builddir "headers") + mkdir -p "${builddir}" + cd "${builddir}" + + # if we don't have a compiler yet, we can't really test it now ... + # hopefully they don't affect header generation, so let's hope for + # the best here ... + local v vars=( + ac_cv_header_cpuid_h=yes + libc_cv_{386,390,alpha,arm,hppa,mips,{powerpc,sparc}{,32,64},sh,x86_64}_tls=yes + libc_cv_asm_cfi_directives=yes + libc_cv_broken_visibility_attribute=no + libc_cv_c_cleanup=yes + libc_cv_compiler_powerpc64le_binary128_ok=yes + libc_cv_forced_unwind=yes + libc_cv_gcc___thread=yes + libc_cv_mlong_double_128=yes + libc_cv_mlong_double_128ibm=yes + libc_cv_ppc_machine=yes + libc_cv_ppc_rel16=yes + libc_cv_predef_fortify_source=no + libc_cv_target_power8_ok=yes + libc_cv_visibility_attribute=yes + libc_cv_z_combreloc=yes + libc_cv_z_execstack=yes + libc_cv_z_initfirst=yes + libc_cv_z_nodelete=yes + libc_cv_z_nodlopen=yes + libc_cv_z_relro=yes + libc_mips_abi=${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 + + local headers_only_arch_CPPFLAGS=() + + # 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 + + # 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 + + popd >/dev/null + fi + + local myconf=() + + case ${CTARGET} in + aarch64*) + # The configure checks fail during cross-build, so disable here + # for headers-only + myconf+=( + --disable-mathvec + ) ;; + riscv*) + # RISC-V interrogates the compiler to determine which target to + # build. If building the headers then we don't strictly need a + # RISC-V compiler, so the built-in definitions that are provided + # along with all RISC-V compiler might not exist. This causes + # glibc's RISC-V preconfigure script to blow up. Since we're just + # building the headers any value will actually work here, so just + # pick the standard one (rv64g/lp64d) to make the build scripts + # happy for now -- the headers are all the same anyway so it + # doesn't matter. + headers_only_arch_CPPFLAGS+=( + -D__riscv_xlen=64 + -D__riscv_flen=64 + -D__riscv_float_abi_double=1 + -D__riscv_atomic=1 + ) ;; + esac + + myconf+=( + --disable-sanity-checks + --enable-hacker-mode + --disable-werror + --enable-bind-now + --build=${CBUILD_OPT:-${CBUILD}} + --host=${CTARGET_OPT:-${CTARGET}} + --with-headers=$(build_eprefix)$(alt_build_headers) + --prefix="$(host_eprefix)/usr" + ${EXTRA_ECONF} + ) + + # Nothing is compiled here which would affect the headers for the target. + # So forcing CC/CFLAGS is sane. + local headers_only_CC=$(tc-getBUILD_CC) + local headers_only_CFLAGS="-O1 -pipe" + local headers_only_CPPFLAGS="-U_FORTIFY_SOURCE ${headers_only_arch_CPPFLAGS[*]}" + local headers_only_LDFLAGS="" + set -- "${S}"/configure "${myconf[@]}" + echo \ + "CC=${headers_only_CC}" \ + "CFLAGS=${headers_only_CFLAGS}" \ + "CPPFLAGS=${headers_only_CPPFLAGS}" \ + "LDFLAGS=${headers_only_LDFLAGS}" \ + "$@" + CC=${headers_only_CC} \ + CFLAGS=${headers_only_CFLAGS} \ + CPPFLAGS=${headers_only_CPPFLAGS} \ + LDFLAGS="" \ + "$@" || die "failed to configure glibc" +} + +do_src_configure() { + if just_headers ; then + glibc_headers_configure + else + glibc_do_configure nptl + fi +} + +src_configure() { + foreach_abi do_src_configure +} + +# src_compile + +do_src_compile() { + emake -C "$(builddir nptl)" +} + +src_compile() { + if just_headers ; then + return + fi + + foreach_abi do_src_compile +} + +# src_test + +glibc_src_test() { + cd "$(builddir nptl)" + + local myxfailparams="" + if [[ "${GENTOO_GLIBC_XFAIL_TESTS}" == "yes" ]] ; then + local virt=$(systemd-detect-virt 2>/dev/null) + if [[ ${virt} == systemd-nspawn ]] ; then + ewarn "Skipping extra tests because in systemd-nspawn container" + XFAIL_TEST_LIST+=( "${XFAIL_NSPAWN_TEST_LIST[@]}" ) + fi + if [[ "$(nice)" == "19" ]] ; then + # Expects to be able to increase niceness, which it can't do if + # already at the highest nice value + XFAIL_TEST_LIST+=( "tst-nice" ) + fi + + for myt in ${XFAIL_TEST_LIST[@]} ; do + myxfailparams+="test-xfail-${myt}=yes " + done + fi + + # sandbox does not understand unshare() and prevents + # writes to /proc/, which makes many tests fail + + # we give the tests a bit more time to avoid spurious + # bug reports on slow arches + + SANDBOX_ON=0 LD_PRELOAD= TIMEOUTFACTOR=16 emake ${myxfailparams} check +} + +src_test() { + if just_headers ; then + return + fi + + foreach_abi glibc_src_test || die "tests failed" +} + +# src_install + +run_locale_gen() { + # if the host locales.gen contains no entries, we'll install everything + local root="$1" + local inplace="" + + if [[ "${root}" == "--inplace-glibc" ]] ; then + inplace="--inplace-glibc" + root="$2" + fi + + local locale_list="${root%/}/etc/locale.gen" + + pushd "${ED}"/$(get_libdir) >/dev/null + + if [[ -z $(locale-gen --list --config "${locale_list}") ]] ; then + [[ -z ${inplace} ]] && ewarn "Generating all locales; edit /etc/locale.gen to save time/space" + locale_list="${root%/}/usr/share/i18n/SUPPORTED" + fi + + # bug 736794: we need to be careful with the parallelization... the number of + # processors saved in the environment of a binary package may differ strongly + # from the number of processes available during postinst + local mygenjobs="$(makeopts_jobs)" + if [[ "${EMERGE_FROM}" == "binary" ]] ; then + mygenjobs="$(nproc)" + fi + + set -- locale-gen ${inplace} --jobs "${mygenjobs}" --config "${locale_list}" \ + --destdir "${root}" + echo "$@" + "$@" + + popd >/dev/null +} + +glibc_do_src_install() { + local builddir=$(builddir nptl) + cd "${builddir}" + + emake install_root="${D}/$(build_eprefix)$(alt_prefix)" install + + # This version (2.26) provides some compatibility libraries for the NIS/NIS+ support + # which come without headers etc. Only needed for binary packages since the + # external net-libs/libnsl has increased soversion. Keep only versioned libraries. + find "${D}" -name "libnsl.a" -delete + find "${D}" -name "libnsl.so" -delete + + # Normally upstream_pv is ${PV}. Live ebuilds are exception, there we need + # to infer upstream version: + # '#define VERSION "2.26.90"' -> '2.26.90' + local upstream_pv=$(sed -n -r 's/#define VERSION "(.*)"/\1/p' "${S}"/version.h) + + # Avoid stripping binaries not targeted by ${CHOST}. Or else + # ${CHOST}-strip would break binaries build for ${CTARGET}. + is_crosscompile && dostrip -x / + + # gdb thread introspection relies on local libpthreads symbols. stripping breaks it + # See Note [Disable automatic stripping] + dostrip -x $(alt_libdir)/libpthread-${upstream_pv}.so + # valgrind requires knowledge about ld.so symbols. + dostrip -x $(alt_libdir)/ld-*.so* + + if [[ -e ${ED}/$(alt_usrlibdir)/libm-${upstream_pv}.a ]] ; then + # Move versioned .a file out of libdir to evade portage QA checks + # instead of using gen_usr_ldscript(). We fix ldscript as: + # "GROUP ( /usr/lib64/libm-<pv>.a ..." -> "GROUP ( /usr/lib64/glibc-<pv>/libm-<pv>.a ..." + sed -i "s@\(libm-${upstream_pv}.a\)@${P}/\1@" \ + "${ED}"/$(alt_usrlibdir)/libm.a || die + dodir $(alt_usrlibdir)/${P} + mv "${ED}"/$(alt_usrlibdir)/libm-${upstream_pv}.a \ + "${ED}"/$(alt_usrlibdir)/${P}/libm-${upstream_pv}.a || die + fi + + # We configure toolchains for standalone prefix systems with a sysroot, + # which is prepended to paths in ld scripts, so strip the prefix from these. + # Before: GROUP ( /foo/lib64/libc.so.6 /foo/usr/lib64/libc_nonshared.a AS_NEEDED ( /foo/lib64/ld-linux-x86-64.so.2 ) ) + # After: GROUP ( /lib64/libc.so.6 /usr/lib64/libc_nonshared.a AS_NEEDED ( /lib64/ld-linux-x86-64.so.2 ) ) + if [[ -n $(host_eprefix) ]] ; then + local file + grep -lZIF "ld script" "${ED}/$(alt_usrlibdir)"/lib*.{a,so} 2>/dev/null | while read -rd '' file ; do + sed -i "s|$(host_eprefix)/|/|g" "${file}" || die + done + fi + + # We'll take care of the cache ourselves + rm -f "${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 + # riscv + ilp32d /lib/ld-linux-riscv32-ilp32d.so.1 + ilp32 /lib/ld-linux-riscv32-ilp32.so.1 + lp64d /lib/ld-linux-riscv64-lp64d.so.1 + lp64 /lib/ld-linux-riscv64-lp64.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 + # ELFv2 (glibc does not support ELFv1 on LE) + ppc64 /lib64/ld64.so.2 + ) + ;; + big) + ldso_abi_list+=( + # arm + arm64 /lib/ld-linux-aarch64_be.so.1 + # ELFv1 (glibc does not support ELFv2 on BE) + ppc64 /lib64/ld64.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 + + # In the LSB 5.0 definition, someone had the excellent idea to "standardize" + # the runtime loader name, see also https://xkcd.com/927/ + # Normally, in Gentoo one should never come across executables that require this. + # However, binary commercial packages are known to adhere to weird practices. + # https://refspecs.linuxfoundation.org/LSB_5.0.0/LSB-Core-AMD64/LSB-Core-AMD64.html#BASELIB + local lsb_ldso_name native_ldso_name lsb_ldso_abi + local lsb_ldso_abi_list=( + # x86 + amd64 ld-linux-x86-64.so.2 ld-lsb-x86-64.so.3 + ) + for (( i = 0; i < ${#lsb_ldso_abi_list[@]}; i += 3 )) ; do + lsb_ldso_abi=${lsb_ldso_abi_list[i]} + native_ldso_name=${lsb_ldso_abi_list[i+1]} + lsb_ldso_name=${lsb_ldso_abi_list[i+2]} + has ${lsb_ldso_abi} $(get_install_abis) || continue + + if [[ ! -L ${ED}/$(get_abi_LIBDIR ${lsb_ldso_abi})/${lsb_ldso_name} && ! -e ${ED}/$(get_abi_LIBDIR ${lsb_ldso_abi})/${lsb_ldso_name} ]] ; then + dosym ${native_ldso_name} "$(alt_prefix)/$(get_abi_LIBDIR ${lsb_ldso_abi})/${lsb_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 ! 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. + keepdir $(alt_prefix)/lib + keepdir $(alt_prefix)/usr/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 > "${ED}"/usr/share/i18n/SUPPORTED \ + || die "generating /usr/share/i18n/SUPPORTED failed" + + cd "${S}" || die + + # Install misc network config files + insinto /etc + doins posix/gai.conf + + if use systemd ; then + doins "${WORKDIR}/glibc-systemd-${GLIBC_SYSTEMD_VER}/gentoo-config/nsswitch.conf" + else + doins nss/nsswitch.conf + fi + + # Gentoo-specific + newins "${FILESDIR}"/host.conf-1 host.conf + + if use nscd ; then + doins nscd/nscd.conf + + newinitd "$(prefixify_ro "${FILESDIR}"/nscd-1)" nscd + + local nscd_args=( + -e "s:@PIDFILE@:$(strings "${ED}"/usr/sbin/nscd | grep nscd.pid):" + ) + + sed -i "${nscd_args[@]}" "${ED}"/etc/init.d/nscd + + use systemd && systemd_dounit nscd/nscd.service + newtmpfiles nscd/nscd.tmpfiles nscd.conf + fi + + echo 'LDPATH="include ld.so.conf.d/*.conf"' > "${T}"/00glibc + doenvd "${T}"/00glibc + + for d in BUGS ChangeLog CONFORMANCE FAQ NEWS NOTES PROJECTS README* ; do + [[ -s ${d} ]] && dodoc ${d} + done + dodoc -r ChangeLog.old + + # Prevent overwriting of the /etc/localtime symlink. We'll handle the + # creation of the "factory" symlink in pkg_postinst(). + rm -f "${ED}"/etc/localtime + + # Generate all locales if this is a native build as locale generation + if use compile-locales && ! is_crosscompile ; then + run_locale_gen --inplace-glibc "${ED}/" + fi +} + +glibc_headers_install() { + local builddir=$(builddir "headers") + cd "${builddir}" + emake install_root="${D}/$(build_eprefix)$(alt_prefix)" install-headers + + insinto $(alt_headers)/gnu + doins "${S}"/include/gnu/stubs.h + + # 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 $(alt_prefix)/sys-include +} + +src_install() { + if just_headers ; then + export ABI=default + glibc_headers_install + return + fi + + foreach_abi glibc_do_src_install + + if ! use static-libs ; then + einfo "Not installing static glibc libraries" + find "${ED}" -name "*.a" -and -not -name "*_nonshared.a" -delete + fi +} + +# Simple test to make sure our new glibc isn't 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 + + # first let's find the actual dynamic linker here + # symlinks may point to the wrong abi + local newldso=$(find . -maxdepth 1 -name 'ld*so.?' -type f -print -quit) + + einfo Last-minute run tests with ${newldso} in /$(get_libdir) ... + + 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 \ + ${newldso} --library-path . ${x} > /dev/null \ + || die "simple run test (${x}) failed" + done + + popd >/dev/null +} + +pkg_preinst() { + # nothing to do if just installing headers + just_headers && return + + einfo "Checking general environment sanity." + sanity_prechecks + + # 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 + einfo "Defaulting /etc/host.conf:multi to on" + fi + + [[ -n ${ROOT} ]] && return 0 + [[ -d ${ED}/$(get_libdir) ]] || return 0 + [[ -z ${BOOTSTRAP_RAP} ]] && glibc_sanity_check + + if [[ -L ${EROOT}/usr/lib/locale ]]; then + # Help portage migrate this to a directory + # https://bugs.gentoo.org/753740 + rm "${EROOT}"/usr/lib/locale || die + fi + + # Keep around libcrypt so that Perl doesn't break when merging libxcrypt + # (libxcrypt is the new provider for now of libcrypt.so.{1,2}). + # bug #802207 + if has_version "${CATEGORY}/${PN}[crypt]" && ! has preserve-libs ${FEATURES}; then + PRESERVED_OLD_LIBCRYPT=1 + cp -p "${EROOT}/$(get_libdir)/libcrypt$(get_libname 1)" \ + "${T}/libcrypt$(get_libname 1)" || die + else + PRESERVED_OLD_LIBCRYPT=0 + fi +} + +glibc_refresh_ldconfig() { + if [[ ${MERGE_TYPE} == buildonly ]]; then + return + fi + + # Version check could be added to avoid unnecessary work, but ldconfig + # should finish quickly enough to not matter. + ebegin "Refreshing ld.so.cache" + ldconfig -i + if ! eend $?; then + ewarn "Failed to refresh the ld.so.cache for you. Some programs may be broken" + ewarn "before you manually do so (ldconfig -i)." + fi +} + +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 && [[ -z ${ROOT} ]] ; then + # glibc-2.38+ on loong has ldconfig support added, but the ELF e_flags + # handling has changed as well, which means stale ldconfig auxiliary + # cache entries and failure to lookup libgcc_s / libstdc++ (breaking + # every C++ application) / libgomp etc., among other breakages. + # + # To fix this, simply refresh the ld.so.cache without using the + # auxiliary cache if we're natively installing on loong. This should + # be done relatively soon because we want to minimize the breakage + # window for the affected programs. + use loong && glibc_refresh_ldconfig + + use compile-locales || run_locale_gen "${EROOT}/" + fi + + upgrade_warning + + # Check for sanity of /etc/nsswitch.conf, take 2 + if [[ -e ${EROOT}/etc/nsswitch.conf ]] && ! has_version sys-auth/libnss-nis ; then + local entry + for entry in passwd group shadow; do + if grep -E -q "^[ \t]*${entry}:.*nis" "${EROOT}"/etc/nsswitch.conf; then + ewarn "" + ewarn "Your ${EROOT}/etc/nsswitch.conf uses NIS. Support for that has been" + ewarn "removed from glibc and is now provided by the package" + ewarn " sys-auth/libnss-nis" + ewarn "Install it now to keep your NIS setup working." + ewarn "" + fi + done + fi + + if [[ ${PRESERVED_OLD_LIBCRYPT} -eq 1 ]] ; then + cp -p "${T}/libcrypt$(get_libname 1)" "${EROOT}/$(get_libdir)/libcrypt$(get_libname 1)" || die + preserve_old_lib_notify /$(get_libdir)/libcrypt$(get_libname 1) + + elog "Please ignore a possible later error message about a file collision involving" + elog "${EROOT}/$(get_libdir)/libcrypt$(get_libname 1). We need to preserve this file for the moment to keep" + elog "the upgrade working, but it also needs to be overwritten when" + elog "sys-libs/libxcrypt is installed. See bug 802210 for more details." + fi +}
