Topic: Tryout for temporary newer glibc
Hello,
just wanted to share the modifications I had done for having a newer glibc. Taken the version 2.27-2 from Arch Linux therefore as it is compatible for compiling with gcc-6 - another friendly reminder that we need a newer development-stack as version 6 reached its end of life.
Getting the files from here. The PKGBUILD is:
# $Id$
# Maintainer: Bartłomiej Piotrowski <bpiotrowski@archlinux.org>
# Contributor: Allan McRae <allan@archlinux.org>
# toolchain build order: inux-libre-lts-api-headers->glibc->binutils->gcc->binutils->glibc
# NOTE: valgrind requires rebuilt with each major glibc version
pkgbase=glibc
pkgname=(glibc lib32-glibc)
pkgver=2.27
pkgrel=2.hyperbola0
arch=(x86_64)
url='http://www.gnu.org/software/libc'
license=(GPL LGPL)
makedepends=(git gd lib32-gcc-libs)
options=(!strip staticlibs)
_commit=23158b08a0908f381459f273a984c6fd328363cb
#source=(git+https://sourceware.org/git/glibc.git#commit=$_commit
source=(https://ftp.gnu.org/gnu/glibc/glibc-$pkgver.tar.xz{,.sig}
locale.gen.txt
locale-gen
lib32-glibc.conf
bz20338.patch
nscd.initd)
validpgpkeys=(7273542B39962DF7B299931416792B4EA25340F8) # Carlos O'Donell
sha512sums=('7c5581154487d38d173ce1feb944e60207139cca148bccf066eaae322c0c2d219423bdcfa15c7f9be1b5e45dfc43c641cc5d80d3c3c65837d08a83cdb4e2a147'
'SKIP'
'3d9facc6da5159dcd877473c8a4d77006ef5615e2619ef743255112bfa136baf65239367222e87e7ada823d5c7d747aa5204f8365a806141e5884477898ccd14'
'd92e6ba83ee86c3602e74c52bf5f99ca751f3867edb894dd22c179003cd58a1b4e11237a293a54fe126edafd5add78a65bf3368826b8bfa40451ee374e301961'
'37858ae269bcf0d9d5adf5ac440ffeb9f5b71cce427ca85ff8cf9de6ae4d6011f8e71b83ec4aa183ab2ce248b563b5452e3d0d4b769a26f410d27bb8a31769a4'
'ee6cb58bf3f79a702f483318afcd733fe4284609e1755dad7ec0d510c11835a2c850dc2e59e8846b7b0a4d1aff6aacace15eeb9824794fff0d8da84712de9a53'
'8e9797f6cc7963d7c3233059591fd15c424c5dfa215b618336227982015b27b7a0532735ca70e9f269637e3ab1124c014efb3ce31ade2263a134c545448d89f5')
prepare() {
mkdir -p glibc-build lib32-glibc-build
[[ -d glibc-$pkgver ]] && ln -s glibc-$pkgver glibc
cd glibc
local i; for i in ${source[@]}; do
case ${i%::*} in
*.patch)
msg2 "Applying ${i}"
patch -p1 -i "$srcdir/${i}"
;;
esac
done
}
build() {
local _configure_flags=(
--prefix=/usr
--with-headers=/usr/include
--with-bugurl=https://issues.hyperbola.info/
--enable-add-ons
--enable-obsolete-rpc
--enable-kernel=2.6.32
--enable-bind-now
--enable-lock-elision
--enable-multi-arch
--enable-stack-protector=strong
--enable-stackguard-randomization
--disable-profile
--disable-werror
)
cd "$srcdir/glibc-build"
echo "slibdir=/lib" >> configparms
echo "rtlddir=/lib" >> configparms
echo "sbindir=/usr/sbin" >> configparms
echo "rootsbindir=/sbin" >> configparms
echo "vardbdir=/var/lib/misc" >> configparms
# remove fortify for building libraries
CPPFLAGS=${CPPFLAGS/-D_FORTIFY_SOURCE=2/}
"$srcdir/glibc/configure" \
--libdir=/usr/lib \
--libexecdir=/usr/libexec \
${_configure_flags[@]}
# build libraries with fortify disabled
echo "build-programs=no" >> configparms
make -j4
# re-enable fortify for programs
sed -i "/build-programs=/s#no#yes#" configparms
echo "CC += -D_FORTIFY_SOURCE=2" >> configparms
echo "CXX += -D_FORTIFY_SOURCE=2" >> configparms
make -j4
cd "$srcdir/lib32-glibc-build"
export CC="gcc -m32 -mstackrealign"
export CXX="g++ -m32 -mstackrealign"
echo "slibdir=/lib32" >> configparms
echo "rtlddir=/lib32" >> configparms
echo "sbindir=/usr/sbin" >> configparms
echo "rootsbindir=/sbin" >> configparms
# remove fortify for building libraries
CPPFLAGS=${CPPFLAGS/-D_FORTIFY_SOURCE=2/}
CFLAGS=${CFLAGS/-fno-plt/}
CXXFLAGS=${CXXFLAGS/-fno-plt/}
"$srcdir/glibc/configure" \
--host=i686-pc-linux-gnu \
--libdir=/usr/lib32 \
--libexecdir=/usr/libexec \
${_configure_flags[@]}
# build libraries with fortify disabled
echo "build-programs=no" >> configparms
make -j4
# re-enable fortify for programs
sed -i "/build-programs=/s#no#yes#" configparms
echo "CC += -D_FORTIFY_SOURCE=2" >> configparms
echo "CXX += -D_FORTIFY_SOURCE=2" >> configparms
make -j4
}
check() {
cd glibc-build
# remove fortify in preparation to run test-suite
sed -i '/FORTIFY/d' configparms
# some failures are "expected"
make check || true
}
package_glibc() {
pkgdesc='GNU C Library, with OpenRC support'
depends=('linux-libre-lts-api-headers>=4.9' tzdata filesystem)
optdepends=('gd: for memusagestat')
install=glibc.install
backup=(etc/gai.conf
etc/locale.gen
etc/nscd.conf)
groups=(base)
install -dm755 "$pkgdir/etc"
touch "$pkgdir/etc/ld.so.conf"
make -C glibc-build install_root="$pkgdir" install
rm -f "$pkgdir"/etc/ld.so.{cache,conf}
cd glibc
install -dm755 "$pkgdir"/usr/lib/locale
install -m644 nscd/nscd.conf "$pkgdir/etc/nscd.conf"
install -Dm755 ${srcdir}/nscd.initd ${pkgdir}/etc/init.d/nscd
install -m644 posix/gai.conf "$pkgdir"/etc/gai.conf
install -m755 "$srcdir/locale-gen" "$pkgdir/usr/sbin"
# Create /etc/locale.gen
install -m644 "$srcdir/locale.gen.txt" "$pkgdir/etc/locale.gen"
sed -e '1,3d' -e 's|/| |g' -e 's|\\| |g' -e 's|^|#|g' \
"$srcdir/glibc/localedata/SUPPORTED" >> "$pkgdir/etc/locale.gen"
if check_option 'debug' n; then
find "$pkgdir"/usr/bin -type f -executable -exec strip $STRIP_BINARIES {} + 2> /dev/null || true
find "$pkgdir"/usr/lib -name '*.a' -type f -exec strip $STRIP_STATIC {} + 2> /dev/null || true
# Do not strip these for gdb and valgrind functionality, but strip the rest
find "$pkgdir"/usr/lib \
-not -name 'ld-*.so' \
-not -name 'libc-*.so' \
-not -name 'libpthread-*.so' \
-not -name 'libthread_db-*.so' \
-name '*-*.so' -type f -exec strip $STRIP_SHARED {} + 2> /dev/null || true
fi
# install license files
install -dm755 ${pkgdir}/usr/share/licenses/${pkgname}
install -m644 ${srcdir}/glibc-${pkgver}/{COPYING{,.LIB},LICENSES} ${pkgdir}/usr/share/licenses/${pkgname}
}
package_lib32-glibc() {
pkgdesc='GNU C Library (32-bit)'
depends=("glibc=$pkgver")
cd lib32-glibc-build
make install_root="$pkgdir" install
rm -rf "$pkgdir"/{etc,sbin,usr/{bin,sbin,share},var}
# We need to keep 32 bit specific header files
find "$pkgdir/usr/include" -type f -not -name '*-32.h' -delete
# Dynamic linker
mkdir ${pkgdir}/lib
ln -s ../lib32/ld-linux.so.2 "$pkgdir/lib/"
# Add lib32 paths to the default library search path
install -Dm644 "$srcdir/lib32-glibc.conf" "$pkgdir/etc/ld.so.conf.d/lib32-glibc.conf"
# Symlink /usr/lib32/locale to /usr/lib/locale
ln -s ../lib/locale "$pkgdir/usr/lib32/locale"
if check_option 'debug' n; then
find "$pkgdir"/usr/lib32 -name '*.a' -type f -exec strip $STRIP_STATIC {} + 2> /dev/null || true
find "$pkgdir"/usr/lib32 \
-not -name 'ld-*.so' \
-not -name 'libc-*.so' \
-not -name 'libpthread-*.so' \
-not -name 'libthread_db-*.so' \
-name '*-*.so' -type f -exec strip $STRIP_SHARED {} + 2> /dev/null || true
fi
# install license files
install -dm755 ${pkgdir}/usr/share/licenses/${pkgname}
install -m644 ${srcdir}/glibc-${pkgver}/{COPYING{,.LIB},LICENSES} ${pkgdir}/usr/share/licenses/${pkgname}
}Please note therefore, that you also need to modify the file lib32-glibc.conf and build an INIT-script for nscd as the version coming up from Arch Linux uses systemd completely. So you should therefore also have a look onto the glibc here at Hyperbola. I'm testing this one for some days now and it is running very well. Happy hacking! 
Human being in favor with clear principles and so also for freedom in soft- and hardware!
Certainly anyone who has the power to make you believe absurdities has the power to make you commit injustices: For a life of every being full with peace and kindness, including diversity and freedom. Capitalism is destroying our minds, the planet itself and the universe in the end!
Certainly anyone who has the power to make you believe absurdities has the power to make you commit injustices: For a life of every being full with peace and kindness, including diversity and freedom. Capitalism is destroying our minds, the planet itself and the universe in the end!