sys-libs/compiler-rt-sanitizers: Add a live ebuild for 8.* branch

Signed-off-by: Michał Górny <mgorny@gentoo.org>

1 files changed, 173 insertions, 0 deletions

diff --git a/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-8.0.9999.ebuild b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-8.0.9999.ebuild
new file mode 100644
index 000000000000..e2589f02ba5d
--- /dev/null
+++ b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-8.0.9999.ebuild
@@ -0,0 +1,173 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+# (needed due to CMAKE_BUILD_TYPE != Gentoo)
+CMAKE_MIN_VERSION=3.7.0-r1
+PYTHON_COMPAT=( python2_7 )
+
+inherit check-reqs cmake-utils flag-o-matic git-r3 llvm \
+	multiprocessing python-any-r1
+
+DESCRIPTION="Compiler runtime libraries for clang (sanitizers & xray)"
+HOMEPAGE="https://llvm.org/"
+SRC_URI=""
+EGIT_REPO_URI="https://git.llvm.org/git/compiler-rt.git
+	https://github.com/llvm-mirror/compiler-rt.git"
+EGIT_BRANCH="release_80"
+
+LICENSE="|| ( UoI-NCSA MIT )"
+# Note: this needs to be updated to match version of clang-9999
+SLOT="8.0.0"
+KEYWORDS=""
+IUSE="+clang +libfuzzer +profile +sanitize test +xray elibc_glibc"
+# FIXME: libfuzzer does not enable all its necessary dependencies
+REQUIRED_USE="libfuzzer? ( || ( sanitize xray ) )"
+RESTRICT="!test? ( test ) !clang? ( test )"
+
+CLANG_SLOT=${SLOT%%.*}
+# llvm-6 for new lit options
+DEPEND="
+	>=sys-devel/llvm-6
+	clang? ( sys-devel/clang )
+	elibc_glibc? ( net-libs/libtirpc )
+	test? (
+		!<sys-apps/sandbox-2.13
+		$(python_gen_any_dep ">=dev-python/lit-5[\${PYTHON_USEDEP}]")
+		=sys-devel/clang-${PV%_*}*:${CLANG_SLOT}
+		sys-libs/compiler-rt:${SLOT} )
+	${PYTHON_DEPS}"
+
+# least intrusive of all
+CMAKE_BUILD_TYPE=RelWithDebInfo
+
+check_space() {
+	if use test; then
+		local CHECKREQS_DISK_BUILD=11G
+		check-reqs_pkg_pretend
+	fi
+}
+
+pkg_pretend() {
+	check_space
+}
+
+pkg_setup() {
+	check_space
+	llvm_pkg_setup
+	python-any-r1_pkg_setup
+}
+
+src_unpack() {
+	if use test; then
+		# needed for patched gtest
+		git-r3_fetch "https://git.llvm.org/git/llvm.git
+			https://github.com/llvm-mirror/llvm.git"
+	fi
+	git-r3_fetch
+
+	if use test; then
+		git-r3_checkout https://llvm.org/git/llvm.git \
+			"${WORKDIR}"/llvm '' utils/unittest
+	fi
+	git-r3_checkout
+}
+
+src_prepare() {
+	cmake-utils_src_prepare
+
+	if use test; then
+		# remove tests that are (still) broken by new glibc
+		# https://bugs.llvm.org/show_bug.cgi?id=36065
+		if use elibc_glibc && has_version '>=sys-libs/glibc-2.25'; then
+			rm test/lsan/TestCases/Linux/use_tls_dynamic.cc || die
+			rm test/msan/dtls_test.c || die
+		fi
+	fi
+}
+
+src_configure() {
+	# pre-set since we need to pass it to cmake
+	BUILD_DIR=${WORKDIR}/${P}_build
+
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	local mycmakeargs=(
+		-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${SLOT}"
+		# use a build dir structure consistent with install
+		# this makes it possible to easily deploy test-friendly clang
+		-DCOMPILER_RT_OUTPUT_DIR="${BUILD_DIR}/lib/clang/${SLOT}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		# built-ins installed by sys-libs/compiler-rt
+		-DCOMPILER_RT_BUILD_BUILTINS=OFF
+		-DCOMPILER_RT_BUILD_LIBFUZZER=$(usex libfuzzer)
+		-DCOMPILER_RT_BUILD_PROFILE=$(usex profile)
+		-DCOMPILER_RT_BUILD_SANITIZERS=$(usex sanitize)
+		-DCOMPILER_RT_BUILD_XRAY=$(usex xray)
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
+
+			# they are created during src_test()
+			-DCOMPILER_RT_TEST_COMPILER="${BUILD_DIR}/lib/llvm/${CLANG_SLOT}/bin/clang"
+			-DCOMPILER_RT_TEST_CXX_COMPILER="${BUILD_DIR}/lib/llvm/${CLANG_SLOT}/bin/clang++"
+		)
+
+		# same flags are passed for build & tests, so we need to strip
+		# them down to a subset supported by clang
+		CC=${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/bin/clang \
+		CXX=${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/bin/clang++ \
+		strip-unsupported-flags
+	fi
+
+	if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
+		mycmakeargs+=(
+			# disable use of SDK for the system itself
+			-DDARWIN_macosx_CACHED_SYSROOT=/
+		)
+	fi
+
+	cmake-utils_src_configure
+
+	if use test; then
+		local sys_dir=( "${EPREFIX}"/usr/lib/clang/${SLOT}/lib/* )
+		[[ -e ${sys_dir} ]] || die "Unable to find ${sys_dir}"
+		[[ ${#sys_dir[@]} -eq 1 ]] || die "Non-deterministic compiler-rt install: ${sys_dir[*]}"
+
+		# copy clang over since resource_dir is located relatively to binary
+		# therefore, we can put our new libraries in it
+		mkdir -p "${BUILD_DIR}"/lib/{llvm/${CLANG_SLOT}/{bin,$(get_libdir)},clang/${SLOT}/include} || die
+		cp "${EPREFIX}"/usr/lib/llvm/${CLANG_SLOT}/bin/clang{,++} \
+			"${BUILD_DIR}"/lib/llvm/${CLANG_SLOT}/bin/ || die
+		cp "${EPREFIX}"/usr/lib/clang/${SLOT}/include/*.h \
+			"${BUILD_DIR}"/lib/clang/${SLOT}/include/ || die
+		cp "${sys_dir}"/*builtins*.a \
+			"${BUILD_DIR}/lib/clang/${SLOT}/lib/${sys_dir##*/}/" || die
+		# we also need LLVMgold.so for gold-based tests
+		if [[ -f ${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/$(get_libdir)/LLVMgold.so ]]; then
+			ln -s "${EPREFIX}"/usr/lib/llvm/${CLANG_SLOT}/$(get_libdir)/LLVMgold.so \
+				"${BUILD_DIR}"/lib/llvm/${CLANG_SLOT}/$(get_libdir)/ || die
+		fi
+	fi
+}
+
+src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	# disable sandbox to have it stop clobbering LD_PRELOAD
+	local -x SANDBOX_ON=0
+	# wipe LD_PRELOAD to make ASAN happy
+	local -x LD_PRELOAD=
+
+	cmake-utils_src_make check-all
+}