[gentoo-commits] repo/gentoo:master commit in: sys-libs/llvm-libunwind/

[Michał Górny]

commit:     d0abfd1184e8185f96050845550edf1fdfcd5472
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Sun Feb  6 15:16:48 2022 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Sun Feb  6 15:34:26 2022 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d0abfd11

sys-libs/llvm-libunwind: Add 15.x live ebuild

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

 .../llvm-libunwind-15.0.0.9999.ebuild              | 141 +++++++++++++++++++++
 1 file changed, 141 insertions(+)

diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-15.0.0.9999.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-15.0.0.9999.ebuild
new file mode 100644
index 000000000000..b56cae043ae1
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-15.0.0.9999.ebuild
@@ -0,0 +1,141 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+CMAKE_ECLASS=cmake
+PYTHON_COMPAT=( python3_{8..10} )
+inherit cmake-multilib llvm llvm.org python-any-r1 toolchain-funcs
+
+DESCRIPTION="C++ runtime stack unwinder from LLVM"
+HOMEPAGE="https://github.com/llvm-mirror/libunwind"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS=""
+IUSE="debug static-libs test"
+RESTRICT="!test? ( test )"
+
+RDEPEND="!sys-libs/libunwind"
+# llvm-6 for new lit options
+DEPEND="
+	>=sys-devel/llvm-6"
+BDEPEND="
+	test? ( >=sys-devel/clang-3.9.0
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)"
+
+LLVM_COMPONENTS=( libunwind libcxx llvm/cmake cmake )
+LLVM_TEST_COMPONENTS=( libcxxabi )
+llvm.org_set_globals
+
+python_check_deps() {
+	has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	use test && python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	local use_compiler_rt=OFF
+	local libdir=$(get_libdir)
+
+	# link to compiler-rt
+	# https://github.com/gentoo/gentoo/pull/21516
+	if tc-is-clang; then
+		local compiler_rt=$($(tc-getCC) ${CFLAGS} ${CPPFLAGS} \
+		   ${LD_FLAGS} -print-libgcc-file-name)
+		if [[ ${compiler_rt} == *libclang_rt* ]]; then
+			use_compiler_rt=ON
+		fi
+	fi
+
+	local mycmakeargs=(
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBUNWIND_ENABLE_ASSERTIONS=$(usex debug)
+		-DLIBUNWIND_ENABLE_STATIC=$(usex static-libs)
+		-DLIBUNWIND_INSTALL_HEADERS=ON
+		-DLIBUNWIND_TARGET_TRIPLE="${CHOST}"
+		-DLLVM_INCLUDE_TESTS=$(usex test)
+
+		# support non-native unwinding; given it's small enough,
+		# enable it unconditionally
+		-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
+
+		# avoid dependency on libgcc_s if compiler-rt is used
+		-DLIBUNWIND_USE_COMPILER_RT=${use_compiler_rt}
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DLIBUNWIND_LIBCXX_PATH="${WORKDIR}/libcxx"
+		)
+	fi
+
+	cmake_src_configure
+
+	if use test; then
+		local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
+		[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
+
+		# meh, we need to override the compiler explicitly
+		sed -e "/%{cxx}/s@, '.*'@, '${clang_path}'@" \
+			-i "${BUILD_DIR}"/test/lit.site.cfg || die
+	fi
+}
+
+wrap_libcxxabi() {
+	local mycmakeargs=(
+		-DLIBCXXABI_LIBDIR_SUFFIX=
+		-DLIBCXXABI_ENABLE_SHARED=OFF
+		-DLIBCXXABI_ENABLE_STATIC=ON
+		-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+		-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+		-DLIBCXXABI_LIBCXX_INCLUDES="${BUILD_DIR}"/libcxx/include/c++/v1
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${S}"/include
+	)
+
+	local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/$(get_libdir)"
+	local CMAKE_USE_DIR=${WORKDIR}/libcxxabi
+	local BUILD_DIR=${BUILD_DIR}/libcxxabi
+
+	"${@}"
+}
+
+wrap_libcxx() {
+	local mycmakeargs=(
+		-DLIBCXX_LIBDIR_SUFFIX=
+		-DLIBCXX_ENABLE_SHARED=OFF
+		-DLIBCXX_ENABLE_STATIC=ON
+		-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
+		-DLIBCXX_CXX_ABI=libcxxabi
+		-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${WORKDIR}"/libcxxabi/include
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+		-DLIBCXX_HAS_GCC_S_LIB=OFF
+		-DLIBCXX_INCLUDE_TESTS=OFF
+		-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+	)
+
+	local CMAKE_USE_DIR=${WORKDIR}/libcxx
+	local BUILD_DIR=${BUILD_DIR}/libcxx
+
+	"${@}"
+}
+
+multilib_src_test() {
+	# build local copies of libc++ & libc++abi for testing to avoid
+	# circular deps
+	wrap_libcxx cmake_src_configure
+	wrap_libcxx cmake_build generate-cxx-headers
+	wrap_libcxxabi cmake_src_configure
+	wrap_libcxxabi cmake_src_compile
+	wrap_libcxx cmake_src_compile
+	mv "${BUILD_DIR}"/libcxx*/lib/libc++* "${BUILD_DIR}/lib/" || die
+
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-unwind
+}