Hello Little!
03 Aug 2018 21:14, Little Mikey wrote to Benny Pedersen:
BP>> i have glibc from truck github if i want to use it, there is no
BP>> safe way back if emerged
LM> Understood. glibc is the trickiest package to upgrade since
LM> everything relies on it.
+1
LM> That is why special partitions are deployed
LM> here for experimenting with glibc.
how is the layout with it ?
lvm2 snapshot rollbacks ?
LM> Having said that, this reply is
LM> being entered on a booted rootfs based on glibc-2.28 with a
LM> bootstrapped gcc-8.2.0 and at this writing a linux-4.17.11 kernel.
LM> The original post you are replying to was also from this same rootfs.
i could do this on gentoo, i know enough to hack this with gentoo portage, but
i dont know how cold it could be on the maunting top :)
BP>> could you test this ? :)
LM> Do you mean the gentoo package?
----- glibc-9999.ebuild begins -----
# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=6
inherit prefix eutils versionator toolchain-funcs flag-o-matic gnuconfig \
multilib systemd multiprocessing
DESCRIPTION="GNU libc C library"
HOMEPAGE="https://www.gnu.org/software/libc/"
LICENSE="LGPL-2.1+ BSD HPND ISC inner-net rc PCRE"
RESTRICT="strip" # Strip ourself #46186
SLOT="2.2"
EMULTILIB_PKG="true"
if [[ ${PV} == 9999* ]]; then
EGIT_REPO_URI="https://sourceware.org/git/glibc.git"
inherit git-r3
else
# KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~m68k ~mips ~ppc
~ppc64 ~s390 ~sh ~sparc ~x86"
KEYWORDS=""
SRC_URI="mirror://gnu/glibc/${P}.tar.xz"
fi
RELEASE_VER=${PV}
GCC_BOOTSTRAP_VER=20180511
# Gentoo patchset
PATCH_VER=7
SRC_URI+=" https://dev.gentoo.org/~dilfridge/distfiles/${P}-patc
es-${PATCH_VER}.tar.bz2"
SRC_URI+=" multilib? ( https://dev.gentoo.org/~dilfridge/distfil
s/gcc-multilib-bootstrap-${GCC_BOOTSTRAP_VER}.tar.xz )"
IUSE="audit caps cet compile-locales doc gd hardened headers-only +multiarch
multilib nscd profile selinux suid systemtap test vanilla"
# Minimum kernel version that glibc requires
MIN_KERN_VER="3.2.0"
# 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
# We need a new-enough binutils/gcc to match upstream baseline.
# Also we need to make sure our binutils/gcc supports TLS.
COMMON_DEPEND="
nscd? ( selinux? (
audit? ( sys-process/audit )
caps? ( sys-libs/libcap )
) )
suid? ( caps? ( sys-libs/libcap ) )
selinux? ( sys-libs/libselinux )
systemtap? ( dev-util/systemtap )
"
DEPEND="${COMMON_DEPEND}
>=app-misc/pax-utils-0.1.10
sys-devel/bison
!=net-dns/libidn2-2.0.5 )
"
RDEPEND="${COMMON_DEPEND}
>=net-dns/libidn2-2.0.5
sys-apps/gentoo-functions
!sys-kernel/ps3-sources
!sys-libs/nss-db
"
if [[ ${CATEGORY} == cross-* ]] ; then
DEPEND+=" !headers-only? (
>=${CATEGORY}/binutils-2.24
>=${CATEGORY}/gcc-4.9
)"
[[ ${CATEGORY} == *-linux* ]] && DEPEND+=" ${CATEGORY}/linux-headers"
else
DEPEND+="
>=sys-devel/binutils-2.24
>=sys-devel/gcc-4.9
virtual/os-headers
"
RDEPEND+=" vanilla? ( !sys-libs/timezone-data )"
PDEPEND+=" !vanilla? ( sys-libs/timezone-data )"
fi
#
# Small helper functions
#
is_crosscompile() {
[[ ${CHOST} != ${CTARGET} ]]
}
just_headers() {
is_crosscompile && use headers-only
}
alt_prefix() {
is_crosscompile && echo /usr/${CTARGET}
}
# 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 ${ALT_BUILD_HEADERS} ]] ; then
ALT_BUILD_HEADERS="${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}-$1"
}
do_compile_test() {
local ret save_cflags=${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}
}
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 $(tc-arch) in
x86)
# -march needed for #185404 #199334
# TODO: When creating the first glibc cross-compile,
this test will
# always fail as it does a full link which in turn
requires glibc.
# Probably also applies when changing multilib profile
settings (e.g.
# enabling x86 when the profile was amd64-only
previously).
# We could change main to _start and pass -nostdlib
here so that we
# only test the gcc code compilation. Or we could do
a compile and
# then look for the symbol via scanelf.
if ! do_compile_test "" 'void f(int i, void *p) {if
(__sync_fetch_and_add(&i, 1)) f(i, p);}\nint main(){return 0;}\n' 2>/dev/null
then
local t=${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 ! do_compile_test "${CFLAGS_x86}" 'void f(int i,
void *p) {if (__sync_fetch_and_add(&i, 1)) f(i, p);}\nint main(){return 0;}\n'
2>/dev/null ; then
local t=${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
;;
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=${ASFLAGS_BASE}
# Over-zealous CFLAGS can often cause problems. What may work for one
# person may not work for another. To avoid a large influx of bugs
# relating to failed builds, we strip most CFLAGS out to ensure as few
# problems as possible.
strip-flags
strip-unsupported-flags
filter-flags -m32 -m64 '-mabi=*'
# glibc aborts if rpath is set by LDFLAGS
filter-ldflags '-Wl,-rpath=*'
# #492892
filter-flags -frecord-gcc-switches
unset CBUILD_OPT CTARGET_OPT
if use multilib ; then
CTARGET_OPT=$(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; we want to be conservative here.
# -fno-strict-aliasing is to work around #155906.
filter-flags '-O?'
append-flags -O2 -fno-strict-aliasing
filter-flags '-fstack-protector*'
# Starting with gcc-6 (and fully upstreamed pie patches) we control
# default enabled/disabled pie via use flags. So nothing to do
# here then. #618160
if [[ $(gcc-major-version) -lt 6 ]]; then
if use hardened && tc-enables-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
fi
}
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 -- can't test linking yet
tc-has-tls -c ${CTARGET}
WANT__THREAD=$?
return ${WANT__THREAD}
}
use_multiarch() {
# Allow user to disable runtime arch detection in multilib.
use multiarch || return 1
# Make sure binutils is new enough to support indirect functions,
# #336792. This funky sed supports gold and bfd linkers.
local bver nver
bver=$($(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
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}}
einfo " $(printf '%15s' 'Manual CFLAGS:') ${CFLAGS}"
fi
setup_flags
export ABI=${ABI:-${DEFAULT_ABI:-default}}
if use headers-only ; then
# Avoid mixing host's CC and target's CFLAGS_${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
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}"
einfo " $(printf '%15s' 'Manual CC:') ${CC}"
}
foreach_abi() {
setup_env
local ret=0
local abilist=""
if use multilib ; then
abilist=$(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 ${PATCH_VER} ]] && ! use vanilla && b+=" p${PATCH_VER}"
echo "${b}"
}
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
# 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."
die "mount & fix your /dev/pts settings"
fi
}
# 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 \nLINUX_VERSION_CODE\n' | \
$(tc-getCPP ${CTARGET}) -I "${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() {
# Make sure devpts is mounted correctly for use w/out setuid pt_chown
check_devpts
# 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 ! do_run_test '#include \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() will break. See
bug 279260."
die "Old and broken kernel."
fi
fi
# Users have had a chance to phase themselves, time to give em the boot
if [[ -e ${EROOT}/etc/locale.gen ]] && [[ -e ${EROOT}/et
/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 https://www.gentoo.org/doc/e
/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 && ! tc-enables-pie && \
ewarn "PIE hardening not applied, as your compiler doesn't
default to PIE"
# Check for sanity of /etc/nsswitch.conf
if [[ -e ${EROOT}/etc/nsswitch.conf ]] ; then
local entry
for entry in passwd group shadow; do
if ! egrep -q "^[ \t]*${entry}:.*files"
${EROOT}"/etc/nsswitch.conf; then
eerror "Your ${EROOT}/etc/nsswitch.conf is out
of date."
eerror "Please make sure you have 'files'
entries for"
eerror "'passwd:', 'group:' and 'shadow:'
databases."
eerror "For more details see:"
eerror " https://wiki.gentoo.or
/wiki/Project:Toolchain/nsswitch.conf_in_glibc-2.26"
die "nsswitch.conf has no 'files' provider in
'${entry}'."
fi
done
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 && [[ ${MERGE_TYPE} != "binary"
]] ; then
ebegin "Checking that IA32 emulation is enabled in the
running kernel"
echo 'int main(){return 0;}' > "${T}/che
k-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
[[ $STAT -eq 0 ]] || die "CONFIG_IA32_EMULATION must
be enabled in the kernel to compile a multilib glibc."
fi
fi
# When we actually have to compile something...
if ! just_headers ; then
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 [[ ${CTARGET} == *-linux* ]] ; then
local run_kv build_kv want_kv
run_kv=$(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
${want_kv}!"
die "Kernel version too low!"
fi
fi
ebegin "Checking linux-headers version (${build_kv} >=
${want_kv})"
if ! eend_KV ${build_kv} ${want_kv} ; then
echo
eerror "You need linux-headers of at least
${want_kv}!"
die "linux-headers version too low!"
fi
fi
fi
}
#
# the phases
#
# pkg_pretend
pkg_pretend() {
# All the checks...
einfo "Checking general environment sanity."
sanity_prechecks
}
# src_unpack
src_unpack() {
# Consistency is not guaranteed between pkg_ and src_ ...
sanity_prechecks
use multilib && unpack gcc-multilib-bootstrap-${GCC_BOOT
TRAP_VER}.tar.xz
setup_env
if [[ -n ${EGIT_REPO_URI} ]] ; then
git-r3_src_unpack
else
unpack ${P}.tar.xz
fi
cd "${S}" || die
touch locale/C-translit.h || die #185476 #218003
cd "${WORKDIR}" || die
unpack glibc-${RELEASE_VER}-patches-${PATCH_VER}.tar.bz2
}
src_prepare() {
if ! use vanilla ; then
elog "Applying Gentoo Glibc Patchset ${RELEASE_V
R}-${PATCH_VER}"
eapply "${WORKDIR}"/patches
einfo "Done."
fi
default
gnuconfig_update
cd "${WORKDIR}"
find . -name configure -exec touch {} +
eprefixify extra/locale/locale-gen
# Fix permissions on some of the scripts.
chmod u+x "${S}"/scripts/*.sh
cd "${S}"
}
glibc_do_configure() {
# Glibc does not work with gold (for various reasons) #269274.
tc-ld-disable-gold
# CXX isnt handled by the multilib system, so if we dont unset here
# we accumulate crap across abis
unset CXX
einfo "Configuring glibc for nptl"
if use doc ; then
export MAKEINFO=makeinfo
else
export MAKEINFO=/dev/null
fi
local v
for v in ABI CBUILD CHOST CTARGET CBUILD_OPT CTARGET_OPT CC CXX LD
{AS,C,CPP,CXX,LD}FLAGS MAKEINFO ; do
einfo " $(printf '%15s' ${v}:) ${!v}"
done
# CFLAGS can contain ABI-specific flags like -mfpu=neon, see bug
#657760
# To build .S (assembly) files with the same ABI-specific flags
# upstream currently recommends adding CFLAGS to CC/CXX:
# https://sourceware.org/PR23273
# Note: Passing CFLAGS via CPPFLAGS overrides glibc's arch-specific
CFLAGS
# and breaks multiarch support. See 659030#c3 for an example.
# The glibc configure script doesn't properly use LDFLAGS all the time.
export CC="$(tc-getCC ${CTARGET}) ${CFLAGS} ${LDFLAGS}"
einfo " $(printf '%15s' 'Manual CC:') ${CC}"
# Some of the tests are written in C++, so we need to force our
multlib abis in, bug 623548
export CXX="$(tc-getCXX ${CTARGET}) $(get_abi_CFLAGS) ${CFLAGS}"
einfo " $(printf '%15s' 'Manual CXX:') ${CXX}"
echo
local myconf=()
case ${CTARGET} in
powerpc-*)
# Currently gcc on powerpc32 generates invalid code for
# __builtin_return_address(0) calls. Normally programs
# don't do that but malloc hooks
|
