1 files changed, 139 insertions, 0 deletions
diff --git a/sys-libs/netbsd-csu/netbsd-csu-9.0_beta.ebuild b/sys-libs/netbsd-csu/netbsd-csu-9.0_beta.ebuild
new file mode 100644
index 000000000000..51311c325c24
--- /dev/null
+++ b/sys-libs/netbsd-csu/netbsd-csu-9.0_beta.ebuild
@@ -0,0 +1,139 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit bsdmk multilib-minimal toolchain-funcs
+
+DESCRIPTION="crtbegin.o/crtend.o from NetBSD CSU for GCC-free toolchain"
+HOMEPAGE="http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/csu/"
+SRC_URI="https://dev.gentoo.org/~mgorny/dist/${P}.tar.xz
+	test? ( https://dev.gentoo.org/~mgorny/dist/netbsd-csu-7.1-tests.tar.bz2 )"
+
+LICENSE="BSD-2"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+BDEPEND="app-arch/xz-utils
+	test? ( sys-devel/clang )"
+
+S=${WORKDIR}/${P}/lib/csu
+
+src_prepare() {
+	default
+	multilib_copy_sources
+}
+
+multilib_src_compile() {
+	local inc_arch=${ABI:-${ARCH}}
+
+	# rewrite ARCH to match NetBSD includes
+	case "${inc_arch}" in
+		x86) inc_arch=i386;;
+		# x32 seems to be equivalent to amd64 as far as we're concerned
+		x32) inc_arch=amd64;;
+		arm64) inc_arch=aarch64;;
+	esac
+
+	# we need arch-specific headers for some assembler macros
+	if [[ ! -d ${WORKDIR}/${P}/sys/arch/${inc_arch} ]]; then
+		die "Unexpected ABI/ARCH: ${inc_arch}, please report"
+	fi
+	ln -s "${WORKDIR}/${P}/sys/arch/${inc_arch}/include" common/machine || die
+
+	local opts=(
+		CC="$(tc-getCC)"
+		OBJCOPY="$(tc-getOBJCOPY)"
+
+		MKPIC=yes
+		MKSTRIPIDENT=no
+	)
+	# rewrite MACHINE_ARCH to match names used in CSU
+	case "${inc_arch}" in
+		amd64) opts+=( MACHINE_ARCH=x86_64 );;
+		*) opts+=( MACHINE_ARCH="${inc_arch}" );;
+	esac
+
+	# we only need those files; crt1 and friends are provided by libc
+	opts+=( crtbegin.o crtbeginS.o crtend.o )
+
+	bsdmk_src_compile "${opts[@]}"
+
+	ln -s crtbegin.o crtbeginT.o || die
+	ln -s crtend.o crtendS.o || die
+}
+
+multilib_src_test() {
+	cd "${WORKDIR}"/*-tests || die
+
+	# TODO: fix gcc support
+	local -x CC=${CHOST}-clang
+	local -x CXX=${CHOST}-clang++
+	strip-unsupported-flags
+
+	local cc=(
+		# -B sets prefix for internal gcc/clang file lookup
+		"${CC}" -B"${BUILD_DIR}"
+	)
+
+	# 1. figure out the correct location for crt* files
+	if tc-is-gcc; then
+		# gcc requires crt*.o in multi-dir
+		local multidir=$("${cc[@]}" -print-multi-directory)
+		if [[ ${multidir} != . ]]; then
+			ln -s . "${multidir}" || die
+		fi
+	elif tc-is-clang; then
+		# clang is entirely happy with crt*.o in -B
+		:
+	else
+		eerror "Unsupported compiler for tests ($(tc-getCC))"
+		return
+	fi
+
+	# 2. verify that the compiler can use our crtbegin/crtend
+	local crtbegin=$("${cc[@]}" -print-file-name=crtbegin.o) || die
+	local crtend=$("${cc[@]}" -print-file-name=crtend.o) || die
+	if [[ ! ${crtbegin} -ef ${BUILD_DIR}/crtbegin.o ]]; then
+		die "Compiler uses wrong crtbegin: ${crtbegin}"
+	fi
+	if [[ ! ${crtend} -ef ${BUILD_DIR}/crtend.o ]]; then
+		die "Compiler uses wrong crtend: ${crtend}"
+	fi
+
+	# 3. build and run the tests
+	emake CC="${cc[*]}"
+
+	local p out exp
+	for p in ./hello{,-static,-dyn}; do
+		if [[ ${p} == ./hello-dyn && ${ABI} == x32 ]]; then
+			einfo "Skipping ${p} on x32 -- known to crash"
+			continue
+		fi
+
+		ebegin "Testing ${p}"
+		exp='ctor:main:dtor'
+		[[ ${p} == ./hello-dyn ]] && exp=libctor:${exp}:libdtor
+		if ! out=$("${p}"); then
+			eend 1
+			die "Test ${p} crashed for ${ABI:-${ARCH}}"
+		fi
+
+		[[ ${out} == ${exp} ]]
+		if ! eend "${?}"; then
+			eerror "  Expected: ${exp}"
+			eerror "  Output  : ${out}"
+			die "Test ${p} failed for ${ABI:-${ARCH}}"
+		fi
+	done
+
+	emake clean
+}
+
+multilib_src_install() {
+	dolib.a crtbegin.o crtbeginS.o crtend.o
+	dosym crtbegin.o "/usr/$(get_libdir)/crtbeginT.o"
+	dosym crtend.o "/usr/$(get_libdir)/crtendS.o"
+}