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# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI="5"
inherit toolchain-glibc
DESCRIPTION="GNU libc6 (also called glibc2) C library"
HOMEPAGE="https://www.gnu.org/software/libc/libc.html"
LICENSE="LGPL-2.1+ BSD HPND ISC inner-net rc PCRE"
KEYWORDS="alpha amd64 arm arm64 hppa ia64 m68k ~mips ppc ppc64 s390 sh sparc x86"
RESTRICT="strip" # strip ourself #46186
EMULTILIB_PKG="true"
# Configuration variables
RELEASE_VER=""
case ${PV} in
9999*)
EGIT_REPO_URIS="git://sourceware.org/git/glibc.git"
inherit git-r3
;;
*)
RELEASE_VER=${PV}
;;
esac
GCC_BOOTSTRAP_VER="4.7.3-r1"
# patches live at https://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo/src/patchsets/glibc/
PATCH_VER="15" # Gentoo patchset
: ${NPTL_KERN_VER:="2.6.32"} # min kernel version nptl requires
GLIBC_PATCH_EXCLUDE+=" 0005_all_sys-types.h-drop-sys-sysmacros.h-include.patch"
IUSE="audit caps debug gd hardened multilib nscd +rpc selinux systemtap profile suid vanilla headers-only"
# Here's how the cross-compile logic breaks down ...
# CTARGET - machine that will target the binaries
# CHOST - machine that will host the binaries
# CBUILD - machine that will build the binaries
# If CTARGET != CHOST, it means you want a libc for cross-compiling.
# If CHOST != CBUILD, it means you want to cross-compile the libc.
# CBUILD = CHOST = CTARGET - native build/install
# CBUILD != (CHOST = CTARGET) - cross-compile a native build
# (CBUILD = CHOST) != CTARGET - libc for cross-compiler
# CBUILD != CHOST != CTARGET - cross-compile a libc for a cross-compiler
# For install paths:
# CHOST = CTARGET - install into /
# CHOST != CTARGET - install into /usr/CTARGET/
export CBUILD=${CBUILD:-${CHOST}}
export CTARGET=${CTARGET:-${CHOST}}
if [[ ${CTARGET} == ${CHOST} ]] ; then
if [[ ${CATEGORY} == cross-* ]] ; then
export CTARGET=${CATEGORY#cross-}
fi
fi
is_crosscompile() {
[[ ${CHOST} != ${CTARGET} ]]
}
# Why SLOT 2.2 you ask yourself while sippin your tea ?
# Everyone knows 2.2 > 0, duh.
SLOT="2.2"
# General: We need a new-enough binutils/gcc to match upstream baseline.
# arch: we need to make sure our binutils/gcc supports TLS.
COMMON_DEPEND="
nscd? ( selinux? (
audit? ( sys-process/audit )
caps? ( sys-libs/libcap )
) )
suid? ( caps? ( sys-libs/libcap ) )
selinux? ( sys-libs/libselinux )
systemtap? ( dev-util/systemtap )
"
DEPEND="${COMMON_DEPEND}
>=app-misc/pax-utils-0.1.10
!<sys-apps/sandbox-1.6
!<sys-apps/portage-2.1.2"
RDEPEND="${COMMON_DEPEND}
!sys-kernel/ps3-sources
sys-apps/gentoo-functions
!sys-libs/nss-db"
if [[ ${CATEGORY} == cross-* ]] ; then
DEPEND+=" !headers-only? (
>=${CATEGORY}/binutils-2.24
>=${CATEGORY}/gcc-4.7
)"
[[ ${CATEGORY} == *-linux* ]] && DEPEND+=" ${CATEGORY}/linux-headers"
else
DEPEND+="
>=sys-devel/binutils-2.24
>=sys-devel/gcc-4.7
virtual/os-headers"
RDEPEND+=" vanilla? ( !sys-libs/timezone-data )"
PDEPEND+=" !vanilla? ( sys-libs/timezone-data )"
fi
upstream_uris() {
echo mirror://gnu/glibc/$1 ftp://sourceware.org/pub/glibc/{releases,snapshots}/$1 mirror://gentoo/$1
}
gentoo_uris() {
local devspace="HTTP~vapier/dist/URI HTTP~dilfridge/distfiles/URI HTTP~tamiko/distfiles/URI HTTP~slyfox/distfiles/URI"
devspace=${devspace//HTTP/https://dev.gentoo.org/}
echo mirror://gentoo/$1 ${devspace//URI/$1}
}
SRC_URI=$(
[[ -z ${EGIT_REPO_URIS} ]] && upstream_uris ${P}.tar.xz
[[ -n ${PATCH_VER} ]] && gentoo_uris ${P}-patches-${PATCH_VER}.tar.bz2
)
SRC_URI+=" ${GCC_BOOTSTRAP_VER:+multilib? ( $(gentoo_uris gcc-${GCC_BOOTSTRAP_VER}-multilib-bootstrap.tar.bz2) )}"
src_unpack() {
[[ -n ${GCC_BOOTSTRAP_VER} ]] && use multilib && unpack gcc-${GCC_BOOTSTRAP_VER}-multilib-bootstrap.tar.bz2
toolchain-glibc_src_unpack
}
src_prepare() {
toolchain-glibc_src_prepare
cd "${S}"
epatch "${FILESDIR}"/2.19/${PN}-2.19-ia64-gcc-4.8-reloc-hack.patch #503838
if use hardened ; then
# We don't enable these for non-hardened as the output is very terse --
# it only states that a crash happened. The default upstream behavior
# includes backtraces and symbols.
einfo "Installing Hardened Gentoo SSP and FORTIFY_SOURCE handler"
cp "${FILESDIR}"/2.20/glibc-2.20-gentoo-stack_chk_fail.c debug/stack_chk_fail.c || die
cp "${FILESDIR}"/2.25/glibc-2.25-gentoo-chk_fail.c debug/chk_fail.c || die
if use debug ; then
# Allow SIGABRT to dump core on non-hardened systems, or when debug is requested.
sed -i \
-e '/^CFLAGS-backtrace.c/ iCPPFLAGS-stack_chk_fail.c = -DSSP_SMASH_DUMPS_CORE' \
-e '/^CFLAGS-backtrace.c/ iCPPFLAGS-chk_fail.c = -DSSP_SMASH_DUMPS_CORE' \
debug/Makefile || die
fi
fi
case $(gcc-fullversion) in
4.8.[0-3]|4.9.0)
eerror "You need to switch to a newer compiler; gcc-4.8.[0-3] and gcc-4.9.0 miscompile"
eerror "glibc. See https://bugs.gentoo.org/547420 for details."
die "need to switch compilers #547420"
;;
esac
}
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