sys-libs/glibc: Sync with Gentoo

It's from Gentoo commit e0bfeb250d886e096fd861a5d280e798c1e16e9c.

sdk_container/src/third_party/coreos-overlay/sys-libs/glibc/Manifest

@@ -1,5 +1,4 @@
 DIST gcc-multilib-bootstrap-20201208.tar.xz 5528452 BLAKE2B 16699a6e4df5b2f28a21776ae9e3728b26a9ea251f5580aa5349545ad7c9f6145b9cb6a12ca8f5f96b9cb2a3c70b7e66ca702e4c6f083ac00408e0a20a69e613 SHA512 a243f505e17d0a7e144e8713c077582412f61d6cf7f79baa846de4fb77f5e0f27e11c9a785e14624e04ac52287b32164e7995323aa11caef59113ac438254347
-DIST glibc-2.36-patches-5.tar.xz 81348 BLAKE2B 003a59a992302c21132474bcdc994d10b5d50a94368e949ce28cbe389cefd104f66c48cb61a63d24e2f6db94d010e4220bda3fb5291d088cda88069b928c92e0 SHA512 6d6a16114df2223bf04729a79d12a52e41c9b8e756863c1acbb909dc34696958073604ced1b691579271218738511191ddf517e03a700d3948752c455201bcc4
+DIST glibc-2.37-patches-5.tar.xz 37640 BLAKE2B a87fb239208eb6d65c96bf7687570d8d0919277410fe1e28c293fa7749ffa862417bc1fe6d0819e47a806b20e52d14de84b843fa879fe15b884b2742719caf87 SHA512 344276606b7330322df72ee964d3447d02907df92b5a1d20b9aa427e93727be907f915ecd62db45e994c46451bd09d5da95ef7bf1a27d247a57589c568e6cb20
-DIST glibc-2.36.tar.xz 18610836 BLAKE2B f8375e084043f032609e66fd98c234249df57a595c59672acb1bb8c69aed64d339d526611553449492b097cda900ad1d9bae8873d7f5932b10a9a0d8c9210c55 SHA512 9ea0bbda32f83a85b7da0c34f169607fb8a102f0a11a914e6bf531be47d1bef4f5307128286cffa1e2dc5879f0e6ccaef527dd353486883fa332a0b44bde8b3e
+DIST glibc-2.37.tar.xz 18674604 BLAKE2B 8139cd977b2ed3bfdbde5ffb1cda8f759763dbb83071167272fef798cfbdc0d17cfd1ec893d126c52c91511b7961f3ad12eed34534b99412dfa04a1cdd5b4ea3 SHA512 4fc5932f206bb1b8b54828a28af1a681616b838bbab60c81c82155f3629cbfe1301d271af65511ed917f4c6949a025429221fe6035753282f15346919f15b90c
 DIST glibc-systemd-20210729.tar.gz 1480 BLAKE2B 37722c7579df782d890e44dbab99c3de52ab466eb9de80d82405e9bb5620bf39ffc8c5f466a435bdb86ef6d36dd7019c0736573916bda6c67d02a2581e0ec979 SHA512 efd75af58b50522c28cdac7abd1fc56555bc1bb042512c90d8340c1ec09c5791b3872a305bf83723252bbde5855b75d958c041083457765c4cfd170732d09238
-DIST locale-gen-2.22.tar.gz 7971 BLAKE2B 2dc66fa69bf51799d0c34459b654fba6998b80a7e322e9b670036c967e269ad921f50195e6e34c4a83c1f0bad191fd5aa3f37defb82271b73acbca07b7e49d08 SHA512 9798b10dbbc792345a7b7a121dec5f4bba9839a8aec010f01a09f3402fd5bf2376f79e03a6a19bc357010db780037a8811c381136ce19be1f1370374906dff38

sdk_container/src/third_party/coreos-overlay/sys-libs/glibc/README.md

@@ -1,9 +0,0 @@
-# GLibc
-
-The system's C library, sometimes referred to as "service pack for the C
-language". The build recipe has a single modification over the one Gentoo
-upstream uses: in the installation callback `glibc_do_src_install`, we remove
-all of glibc's `/etc` files right after the stock glibc build diligently
-installed them, since we ship our own `/etc` stuff via the `baseimage` recipe.
-The addition sits at the end of the `glibc_do_src_install` function and is duly
-labelled `## Flatcar Container Linux: ...`.

sdk_container/src/third_party/coreos-overlay/sys-libs/glibc/files/nscd-conf.tmpfiles

@@ -1,2 +0,0 @@
-L /etc/nscd.conf	-	-	-	-	../usr/share/baselayout/nscd.conf
-d /var/db/nscd		-	-	-	-	-

sdk_container/src/third_party/coreos-overlay/sys-libs/glibc/files/nscd.service

@@ -1,15 +0,0 @@
-[Unit]
-Description=Name Service Cache Daemon
-After=network.target
-
-[Service]
-ExecStart=/usr/sbin/nscd -F
-ExecStop=/usr/sbin/nscd --shutdown
-ExecReload=/usr/sbin/nscd -i passwd
-ExecReload=/usr/sbin/nscd -i group
-ExecReload=/usr/sbin/nscd -i hosts
-ExecReload=/usr/sbin/nscd -i services
-Restart=always
-
-[Install]
-WantedBy=multi-user.target

sdk_container/src/third_party/coreos-overlay/sys-libs/glibc/files/nscd.tmpfilesd

@@ -1,4 +0,0 @@
-# Configuration to create /run/nscd directory
-# Used as part of systemd's tmpfiles
-
-d /run/nscd 0755 root root

sdk_container/src/third_party/coreos-overlay/sys-libs/glibc/glibc-2.37-r3.ebuild

@@ -1,12 +1,12 @@
-# Copyright 1999-2022 Gentoo Authors
+# Copyright 1999-2023 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=7
+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_{8..11} )
+PYTHON_COMPAT=( python3_{9..11} )
 TMPFILES_OPTIONAL=1
 
 inherit python-any-r1 prefix preserve-libs toolchain-funcs flag-o-matic gnuconfig \
@@ -23,6 +23,19 @@ EMULTILIB_PKG="true"
 PATCH_VER=5
 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"
+
 if [[ ${PV} == 9999* ]]; then
 	inherit git-r3
 else
@@ -31,25 +44,10 @@ else
 	SRC_URI+=" https://dev.gentoo.org/~${PATCH_DEV}/distfiles/${P}-patches-${PATCH_VER}.tar.xz"
 fi
 
-RELEASE_VER=${PV}
-
-GCC_BOOTSTRAP_VER=20201208
-
-LOCALE_GEN_VER=2.22
-
-GLIBC_SYSTEMD_VER=20210729
-
-SRC_URI+=" https://gitweb.gentoo.org/proj/locale-gen.git/snapshot/locale-gen-${LOCALE_GEN_VER}.tar.gz"
 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 )"
 
-IUSE="audit caps cet compile-locales +crypt custom-cflags doc gd hash-sysv-compat headers-only +multiarch multilib multilib-bootstrap nscd profile selinux +ssp stack-realign +static-libs suid systemd systemtap test vanilla"
+IUSE="audit caps cet compile-locales +crypt 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"
-
-# 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"
 
 # Here's how the cross-compile logic breaks down ...
 #  CTARGET - machine that will target the binaries
@@ -99,17 +97,21 @@ fi
 # Lastly, let's avoid some openssh nastiness, bug 708224, as
 # convenience to our users.
 
-# gzip, grep, awk are needed by locale-gen, bug 740750
+IDEPEND="
-
+	!compile-locales? ( sys-apps/locale-gen )
+"
 BDEPEND="
 	${PYTHON_DEPS}
 	>=app-misc/pax-utils-${MIN_PAX_UTILS_VER}
 	sys-devel/bison
-	doc? ( sys-apps/texinfo )
+	compile-locales? ( sys-apps/locale-gen )
-	!compile-locales? (
+	doc? (
-		app-arch/gzip
+		dev-lang/perl
-		sys-apps/grep
+		sys-apps/texinfo
-		app-alternatives/awk
+	)
+	test? (
+		dev-lang/perl
+		>=net-dns/libidn2-2.3.0
 	)
 "
 COMMON_DEPEND="
@@ -123,20 +125,10 @@ COMMON_DEPEND="
 	systemtap? ( dev-util/systemtap )
 "
 DEPEND="${COMMON_DEPEND}
-	compile-locales? (
-		app-arch/gzip
-		sys-apps/grep
-		app-alternatives/awk
-	)
-	test? ( >=net-dns/libidn2-2.3.0 )
 "
 RDEPEND="${COMMON_DEPEND}
-	app-arch/gzip
-	sys-apps/grep
-	app-alternatives/awk
-	sys-apps/gentoo-functions
 	!<app-misc/pax-utils-${MIN_PAX_UTILS_VER}
-	!<net-misc/openssh-8.1_p1-r2
+	perl? ( dev-lang/perl )
 "
 
 RESTRICT="!test? ( test )"
@@ -421,6 +413,7 @@ setup_flags() {
 	fi
 
 	strip-unsupported-flags
+	filter-lto
 	filter-flags -m32 -m64 '-mabi=*'
 
 	# glibc aborts if rpath is set by LDFLAGS
@@ -439,6 +432,9 @@ setup_flags() {
 	# #492892
 	filter-flags -frecord-gcc-switches
 
+	# #898098
+	filter-flags -fno-builtin
+
 	# #829583
 	filter-lfs-flags
 
@@ -456,6 +452,7 @@ setup_flags() {
 
 	# 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;
@@ -466,16 +463,16 @@ setup_flags() {
 	filter-flags '-fsanitize=*'
 
 	# See end of bug #830454; we handle this via USE=cet
-	#
+	filter-flags '-fcf-protection=*'
-	# Flatcar: When bootstrapping, we may have a situation where
+
+	# 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.
-	filter-flags '-fcf-protection=*'
+	if (use amd64 || use x86) && ! use cet; then
-	if ! use cet; then
 		append-flags '-fcf-protection=none'
 	fi
 }
@@ -665,7 +662,7 @@ foreach_abi() {
 
 glibc_banner() {
 	local b="Gentoo ${PVR}"
-	[[ -n ${PATCH_VER} ]] && ! use vanilla && b+=" p${PATCH_VER}"
+	[[ -n ${PATCH_VER} ]] && ! use vanilla && b+=" (patchset ${PATCH_VER})"
 	echo "${b}"
 }
 
@@ -761,13 +758,6 @@ sanity_prechecks() {
 		fi
 	fi
 
-	# Users have had a chance to phase themselves, time to give em the boot
-	if [[ -e ${EROOT}/etc/locale.gen ]] && [[ -e ${EROOT}/etc/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."
@@ -874,6 +864,8 @@ pkg_pretend() {
 	upgrade_warning
 }
 
+# pkg_setup
+
 pkg_setup() {
 	# see bug 682570
 	[[ -z ${BOOTSTRAP_RAP} ]] && python-any-r1_pkg_setup
@@ -902,23 +894,24 @@ src_unpack() {
 		unpack ${P}.tar.xz
 
 		cd "${WORKDIR}" || die
-		unpack glibc-${RELEASE_VER}-patches-${PATCH_VER}.tar.xz
+		unpack glibc-${PV}-patches-${PATCH_VER}.tar.xz
 	fi
 
 	cd "${WORKDIR}" || die
-	unpack locale-gen-${LOCALE_GEN_VER}.tar.gz
 	use systemd && unpack glibc-systemd-${GLIBC_SYSTEMD_VER}.tar.gz
 }
 
+# src_prepare
+
 src_prepare() {
 	local patchsetname
 	if ! use vanilla ; then
 		if [[ ${PV} == 9999* ]] ; then
 			patchsetname="from git master"
 		else
-			patchsetname="${RELEASE_VER}-${PATCH_VER}"
+			patchsetname="${PV}-${PATCH_VER}"
 		fi
-		einfo "Applying Gentoo Glibc Patchset ${patchsetname}"
+		einfo "Applying Gentoo Glibc patchset ${patchsetname}"
 		eapply "${WORKDIR}"/patches
 		einfo "Done."
 	fi
@@ -927,21 +920,17 @@ src_prepare() {
 
 	gnuconfig_update
 
-	cd "${WORKDIR}"
+	cd "${WORKDIR}" || die
 	find . -name configure -exec touch {} +
 
-	# move the external locale-gen to its old place
-	mkdir extra || die
-	mv locale-gen-${LOCALE_GEN_VER} extra/locale || die
-
-	eprefixify extra/locale/locale-gen
-
 	# Fix permissions on some of the scripts.
 	chmod u+x "${S}"/scripts/*.sh
 
-	cd "${S}"
+	cd "${S}" || die
 }
 
+# src_configure
+
 glibc_do_configure() {
 	dump_build_environment
 
@@ -957,7 +946,7 @@ glibc_do_configure() {
 	#    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) ;;
+		amd64|x86|sparc|ppc|ppc64|arm|arm64|s390|riscv|loong) ;;
 		# Blacklist everywhere else
 		*) myconf+=( libc_cv_ld_gnu_indirect_function=no ) ;;
 	esac
@@ -1020,6 +1009,14 @@ glibc_do_configure() {
 		$(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'
@@ -1027,6 +1024,7 @@ glibc_do_configure() {
 		# -march= option tricks build system to infer too
 		# high ISA level: https://sourceware.org/PR27318
 		libc_cv_include_x86_isa_level=no
+
 		# Explicit override of https://sourceware.org/PR27991
 		# exposes a bug in glibc's configure:
 		# https://sourceware.org/PR27991
@@ -1206,6 +1204,8 @@ src_configure() {
 	foreach_abi do_src_configure
 }
 
+# src_compile
+
 do_src_compile() {
 	emake -C "$(builddir nptl)"
 }
@@ -1218,6 +1218,8 @@ src_compile() {
 	foreach_abi do_src_compile
 }
 
+# src_test
+
 glibc_src_test() {
 	cd "$(builddir nptl)"
 
@@ -1237,26 +1239,16 @@ glibc_src_test() {
 	SANDBOX_ON=0 LD_PRELOAD= TIMEOUTFACTOR=16 emake ${myxfailparams} check
 }
 
-do_src_test() {
-	local ret=0
-
-	glibc_src_test
-	: $(( ret |= $? ))
-
-	return ${ret}
-}
-
 src_test() {
 	if just_headers ; then
 		return
 	fi
 
-	# Give tests more time to complete.
+	foreach_abi glibc_src_test || die "tests failed"
-	export TIMEOUTFACTOR=5
-
-	foreach_abi do_src_test || die "tests failed"
 }
 
+# src_install
+
 run_locale_gen() {
 	# if the host locales.gen contains no entries, we'll install everything
 	local root="$1"
@@ -1276,7 +1268,15 @@ run_locale_gen() {
 		locale_list="${root%/}/usr/share/i18n/SUPPORTED"
 	fi
 
-	set -- locale-gen ${inplace} --jobs $(makeopts_jobs) --config "${locale_list}" \
+	# 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 "$@"
 	"$@"
@@ -1301,13 +1301,13 @@ glibc_do_src_install() {
 	# '#define VERSION "2.26.90"' -> '2.26.90'
 	local upstream_pv=$(sed -n -r 's/#define VERSION "(.*)"/\1/p' "${S}"/version.h)
 
-	# Flatcar: override this and strip everything to keep image size at bay
 	# Avoid stripping binaries not targeted by ${CHOST}. Or else
 	# ${CHOST}-strip would break binaries build for ${CTARGET}.
-	# is_crosscompile && dostrip -x /
+	is_crosscompile && dostrip -x /
-	# gdb thread introspection relies on local libpthreas symbols. stripping breaks it
+
+	# gdb thread introspection relies on local libpthreads symbols. stripping breaks it
 	# See Note [Disable automatic stripping]
-	# dostrip -x $(alt_libdir)/libpthread-${upstream_pv}.so
+	dostrip -x $(alt_libdir)/libpthread-${upstream_pv}.so
 
 	if [[ -e ${ED}/$(alt_usrlibdir)/libm-${upstream_pv}.a ]] ; then
 		# Move versioned .a file out of libdir to evade portage QA checks
@@ -1318,6 +1318,17 @@ glibc_do_src_install() {
 		mv "${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
 
@@ -1412,6 +1423,8 @@ glibc_do_src_install() {
 
 	#################################################################
 	# 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
@@ -1435,15 +1448,8 @@ glibc_do_src_install() {
 		-e "s: \\\\::g" -e "s:/: :g" \
 		"${S}"/localedata/SUPPORTED > "${ED}"/usr/share/i18n/SUPPORTED \
 		|| die "generating /usr/share/i18n/SUPPORTED failed"
-	cd "${WORKDIR}"/extra/locale
-	dosbin locale-gen
-	doman *.[0-8]
-	insinto /etc
-	doins locale.gen
 
-	keepdir /usr/lib/locale
+	cd "${S}" || die
-
-	cd "${S}"
 
 	# Install misc network config files
 	insinto /etc
@@ -1488,25 +1494,7 @@ glibc_do_src_install() {
 	# Generate all locales if this is a native build as locale generation
 	if use compile-locales && ! is_crosscompile ; then
 		run_locale_gen --inplace-glibc "${ED}/"
-		sed -e 's:COMPILED_LOCALES="":COMPILED_LOCALES="1":' -i "${ED}"/usr/sbin/locale-gen || die
 	fi
-
-	## Flatcar Container Linux: Add some local changes:
-	# - Config files are installed by baselayout, not glibc.
-	# - Install nscd/systemd stuff in /usr.
-
-	# Use tmpfiles to put nscd.conf in /etc and create directories.
-	insinto /usr/share/baselayout
-	if ! in_iuse nscd || use nscd ; then
-		doins "${S}"/nscd/nscd.conf || die
-		newtmpfiles "${FILESDIR}"/nscd-conf.tmpfiles nscd-conf.conf || die
-	fi
-
-	# Clean out any default configs.
-	rm -rf "${ED}"/etc
-
-	# Restore this one for the SDK.
-	test ! -e "${T}"/00glibc || doenvd "${T}"/00glibc
 }
 
 glibc_headers_install() {
@@ -1585,6 +1573,9 @@ 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
 

sdk_container/src/third_party/coreos-overlay/sys-libs/glibc/metadata.xml

@@ -17,6 +17,7 @@
 		<flag name="multiarch">enable optimizations for multiple CPU architectures (detected at runtime)</flag>
 		<flag name="multilib-bootstrap">Provide prebuilt libgcc.a and crt files if missing. Only needed for ABI switch.</flag>
 		<flag name="nscd">Build, and enable support for, the Name Service Cache Daemon</flag>
+		<flag name="perl">Install additional scripts written in Perl</flag>
 		<flag name="ssp">protect stack of glibc internals</flag>
 		<flag name="stack-realign">Realign the stack in the 32-bit build for compatibility with older binaries at some performance cost</flag>
 		<flag name="static-pie">Enable static PIE support (runtime files for -static-pie gcc option).</flag>