1 files changed, 158 insertions, 0 deletions
diff --git a/sys-libs/libhugetlbfs/libhugetlbfs-2.22.ebuild b/sys-libs/libhugetlbfs/libhugetlbfs-2.22.ebuild
new file mode 100644
index 000000000000..34b969c3fe3d
--- /dev/null
+++ b/sys-libs/libhugetlbfs/libhugetlbfs-2.22.ebuild
@@ -0,0 +1,158 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{5,6,7} )
+
+inherit multilib toolchain-funcs python-any-r1
+
+DESCRIPTION="easy hugepage access"
+HOMEPAGE="https://github.com/libhugetlbfs/libhugetlbfs"
+SRC_URI="https://github.com/libhugetlbfs/libhugetlbfs/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="GPL-2"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~s390 ~x86"
+IUSE="static-libs test"
+
+DEPEND="test? ( ${PYTHON_DEPS} )"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.6-fixup-testsuite.patch
+)
+
+src_prepare() {
+	default
+	sed -i \
+		-e '/^PREFIX/s:/local::' \
+		-e '1iBUILDTYPE = NATIVEONLY' \
+		-e '1iV = 1' \
+		-e '/gzip.*MANDIR/d' \
+		-e "/^LIB\(32\)/s:=.*:= $(get_libdir):" \
+		-e '/^CC\(32\|64\)/s:=.*:= $(CC):' \
+		-e 's@^\(ARCH\) ?=@\1 =@' \
+		Makefile || die "sed failed"
+	if [ "$(get_libdir)" == "lib64" ]; then
+		sed -i \
+			-e "/^LIB\(32\)/s:=.*:= lib32:" \
+				Makefile
+	fi
+
+	# Tarballs from github don't have the version set.
+	# https://github.com/libhugetlbfs/libhugetlbfs/issues/7
+	[[ -f version ]] || echo "${PV}" > version
+}
+
+src_compile() {
+	tc-export AR
+	emake CC="$(tc-getCC)" libs tools
+}
+
+src_install() {
+	default
+	use static-libs || rm -f "${ED}"/usr/$(get_libdir)/*.a
+}
+
+src_test_alloc_one() {
+	hugeadm="$1"
+	sign="$2"
+	pagesize="$3"
+	pagecount="$4"
+	${hugeadm} \
+		--pool-pages-max ${pagesize}:${sign}${pagecount} \
+	&& \
+	${hugeadm} \
+		--pool-pages-min ${pagesize}:${sign}${pagecount}
+	return $?
+}
+
+# die is NOT allowed in this src_test block after the marked point, so that we
+# can clean up memory allocation. You'll leak at LEAST 64MiB per run otherwise.
+src_test() {
+	[[ $UID -eq 0 ]] || die "Need FEATURES=-userpriv to run this testsuite"
+	einfo "Building testsuite"
+	emake -j1 tests || die "Failed to build tests"
+
+	local hugeadm='obj/hugeadm'
+	local allocated=''
+	local rc=0
+	# the testcases need 64MiB per pagesize.
+	local MIN_HUGEPAGE_RAM=$((64*1024*1024))
+
+	einfo "Planning allocation"
+	local PAGESIZES="$(${hugeadm} --page-sizes-all)"
+
+	# Need to do this before we can create the mountpoints.
+	local pagesize pagecount
+	for pagesize in ${PAGESIZES} ; do
+		# The kernel depends on the location :-(
+		mkdir -p /var/lib/hugetlbfs/pagesize-${pagesize}
+		addwrite /var/lib/hugetlbfs/pagesize-${pagesize}
+	done
+	addwrite /proc/sys/vm/
+	addwrite /proc/sys/kernel/shmall
+	addwrite /proc/sys/kernel/shmmax
+	addwrite /proc/sys/kernel/shmmni
+
+	einfo "Checking HugeTLB mountpoints"
+	${hugeadm} --create-mounts || die "Failed to set up hugetlb mountpoints."
+
+	# -----------------------------------------------------
+	# --------- die is unsafe after this point. -----------
+	# -----------------------------------------------------
+
+	einfo "Starting allocation"
+	for pagesize in ${PAGESIZES} ; do
+		pagecount=$((${MIN_HUGEPAGE_RAM}/${pagesize}))
+		einfo "  ${pagecount} @ ${pagesize}"
+		addwrite /var/lib/hugetlbfs/pagesize-${pagesize}
+		src_test_alloc_one "${hugeadm}" "+" "${pagesize}" "${pagecount}"
+		rc=$?
+		if [[ ${rc} -eq 0 ]]; then
+			allocated="${allocated} ${pagesize}:${pagecount}"
+		else
+			eerror "Failed to add ${pagecount} pages of size ${pagesize}"
+		fi
+	done
+
+	einfo "Allocation status"
+	${hugeadm} --pool-list
+
+	if [[ -n "${allocated}" ]]; then
+		# All our allocations worked, so time to run.
+		einfo "Starting tests"
+		cd "${S}"/tests || die
+		local TESTOPTS="-t func"
+		case ${ARCH} in
+			amd64|ppc64)
+				TESTOPTS="${TESTOPTS} -b 64"
+				;;
+			x86)
+				TESTOPTS="${TESTOPTS} -b 32"
+				;;
+		esac
+		# This needs a bit of work to give a nice exit code still.
+		./run_tests.py ${TESTOPTS}
+		rc=$?
+	else
+		eerror "Failed to make HugeTLB allocations."
+		rc=1
+	fi
+
+	einfo "Cleaning up memory"
+	cd "${S}" || die
+	# Cleanup memory allocation
+	for alloc in ${allocated} ; do
+		pagesize="${alloc/:*}"
+		pagecount="${alloc/*:}"
+		einfo "  ${pagecount} @ ${pagesize}"
+		src_test_alloc_one "$hugeadm" "-" "${pagesize}" "${pagecount}"
+	done
+
+	# ---------------------------------------------------------
+	# --------- die is safe again after this point. -----------
+	# ---------------------------------------------------------
+
+	return ${rc}
+}