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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 ${PV} in
9999*)
EGIT_REPO_URIS="git://sourceware.org/git/glibc.git"
EGIT_SOURCEDIRS="${S}"
inherit git-2
;;
*)
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() {
case $(gcc-fullversion) in
4.8.[0-3]|4.9.0)
eerror "You need to switch to a newer compiler; gcc-4.8.[0-3] and gcc-4.9.0 miscompile"
eerror "glibc. See https://bugs.gentoo.org/547420 for details."
die "need to switch compilers #547420"
;;
esac
toolchain-glibc_src_prepare
cd "${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
if ! [[ "${ARCH}" == "amd64" ]]; then
einfo "Architecture is not 'amd64' - no updates for x32 ABI required"
else
einfo "Architecture is 'amd64' - adjusting default paths for potential custom x32 ABI library paths"
local LD32="$( get_abi_LIBDIR x86 )"
local LDx32="$( get_abi_LIBDIR x32 )"
local LD64="$( get_abi_LIBDIR amd64 )"
local -i LD32l LDx32l LD64l
(( LD32l = ${#LD32} + 1 ))
(( LDx32l = ${#LDx32} + 1 ))
(( LD64l = ${#LD64} + 1 ))
# In order for this to work, LD64 and LDx32 must share a common root of
# LD32. If this is not the case, then sysdeps/unix/sysv/linux/x86_64/dl-cache.h
# will need to be re-implemented.
local LDx32s="${LDx32#${LD32}}"
local LD64s="${LD64#${LD32}}"
einfo "Using the following libdir paths:"
einfo " 32-bit libraries in '${LD32}'"
einfo " Long-mode 32-bit libraries in '${LDx32}'"
einfo " 64-bit libraries in '${LD64}'"
cd "${S}"
sed -i \
-e "s:/libx32:/${LDx32:-libx32}:g" \
sysdeps/unix/sysv/linux/x86_64/x32/configure \
|| die 'configure patch failed'
sed -i \
-e "/FLAG_ELF_LIBC6/{s:/lib/:/${LD32:-lib}/:}" \
-e "/FLAG_ELF_LIBC6/{s:/libx32/:/${LDx32:-libx32}/:}" \
-e "/FLAG_ELF_LIBC6/{s:/lib64/:/${LD64:-lib64}/:}" \
sysdeps/unix/sysv/linux/x86_64/ldconfig.h \
|| die 'known_interpreter_names replacement failed'
# if (len >= 6 && ! memcmp (path + len - 6, "/lib64", 6)) \
# { \
# len -= 2; \
#
# else if (len >= 7 \
# && ! memcmp (path + len - 7, "/libx32", 7)) \
# { \
# len -= 3; \
#
# if (len >= 4 && ! memcmp (path + len - 4, "/lib", 4)) \
# { \
# memcpy (path + len, "64", 3); \
# add_dir (path); \
# memcpy (path + len, "x32", 4); \
sed -i \
-e "/ memcmp /{s:len >= 6 :len >= ${LD64l} : ; s: 6, \"/lib64\", 6): ${LD64l}, \"/${LD64:-lib64}\", ${LD64l}):}" \
-e "/len -= 2;/{s:len -= 2;:len -= ${#LD64s};:}" \
-e "/else if (len >= 7/{s:len >= 7:len >= ${LDx32l}:}" \
-e "/ memcmp /{s: 7, \"/libx32\", 7): ${LDx32l}, \"/${LDx32:-libx32}\", ${LDx32l}):}" \
-e "/len -= 3;/{s:len -= 3;:len -= ${#LDx32s};:}" \
-e "/ memcmp /{s:len >= 4 :len >= ${LD32l} : ; s: 4, \"/lib\", 4): ${LD32l}, \"/${LD32:-lib}\", ${LD32l}):}" \
-e "/memcpy /{s:len, \"64\", 3):len, \"${LD64s}\", $(( ${#LD64s} + 1 ))):}" \
-e "/memcpy /{s:len, \"x32\", 4):len, \"${LDx32s}\", $(( ${#LDx32s} + 1 ))):}" \
sysdeps/unix/sysv/linux/x86_64/dl-cache.h \
|| die 'dl-cache.h modification failed'
einfo "dl-cache.h now contains:"
cat sysdeps/unix/sysv/linux/x86_64/dl-cache.h
fi
}
src_install() {
toolchain-glibc_src_install
# toolchain-glibc.eclass runs prefixify_ro and a @PIDFILE@ substitution
# on the included 'nscd', although it contains neither of the needed
# template tokens.
use nscd && newinitd "${FILESDIR}"/nscd.initd nscd
}
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