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# Copyright 1999-2018 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=6
: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
# (needed due to CMAKE_BUILD_TYPE != Gentoo)
CMAKE_MIN_VERSION=3.7.0-r1
PYTHON_COMPAT=( python{2_7,3_4,3_5,3_6} )
inherit cmake-multilib llvm multiprocessing python-any-r1
MY_P=libunwind-${PV/_/}.src
LIBCXX_P=libcxx-${PV/_/}.src
LIBCXXABI_P=libcxxabi-${PV/_/}.src
DESCRIPTION="C++ runtime stack unwinder from LLVM"
HOMEPAGE="https://github.com/llvm-mirror/libunwind"
SRC_URI="https://releases.llvm.org/${PV/_//}/${MY_P}.tar.xz
test? (
https://releases.llvm.org/${PV/_//}/${LIBCXX_P}.tar.xz
https://releases.llvm.org/${PV/_//}/${LIBCXXABI_P}.tar.xz )"
LICENSE="|| ( UoI-NCSA MIT )"
SLOT="0"
KEYWORDS="~amd64 ~arm ~arm64 ~x86 ~amd64-fbsd"
IUSE="debug +static-libs test"
RESTRICT="!test? ( test )"
RDEPEND="!sys-libs/libunwind"
# llvm-6 for new lit options
DEPEND="
>=sys-devel/llvm-6
test? ( >=sys-devel/clang-3.9.0
$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
S=${WORKDIR}/${MY_P}
# least intrusive of all
CMAKE_BUILD_TYPE=RelWithDebInfo
python_check_deps() {
has_version "dev-python/lit[${PYTHON_USEDEP}]"
}
pkg_setup() {
use test && python-any-r1_pkg_setup
}
src_unpack() {
default
if use test; then
mv "${LIBCXX_P}" libcxx || die
mv "${LIBCXXABI_P}" libcxxabi || die
fi
}
multilib_src_configure() {
local libdir=$(get_libdir)
local mycmakeargs=(
-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
-DLIBUNWIND_ENABLE_ASSERTIONS=$(usex debug)
-DLIBUNWIND_ENABLE_STATIC=$(usex static-libs)
-DLLVM_INCLUDE_TESTS=$(usex test)
# support non-native unwinding; given it's small enough,
# enable it unconditionally
-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
)
if use test; then
local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
local jobs=${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}
[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
mycmakeargs+=(
-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
-DLLVM_LIT_ARGS="-vv;-j;${jobs};--param=cxx_under_test=${clang_path}"
-DLIBUNWIND_LIBCXX_PATH="${WORKDIR}"/libcxx
)
fi
cmake-utils_src_configure
}
build_libcxxabi() {
local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/$(get_libdir)"
local CMAKE_USE_DIR=${WORKDIR}/libcxxabi
local BUILD_DIR=${BUILD_DIR}/libcxxabi
local mycmakeargs=(
-DLIBCXXABI_LIBDIR_SUFFIX=
-DLIBCXXABI_ENABLE_SHARED=ON
-DLIBCXXABI_ENABLE_STATIC=OFF
-DLIBCXXABI_USE_LLVM_UNWINDER=ON
-DLIBCXXABI_INCLUDE_TESTS=OFF
-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
-DLIBCXXABI_LIBUNWIND_INCLUDES="${S}"/include
)
cmake-utils_src_configure
cmake-utils_src_compile
}
build_libcxx() {
local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/libcxxabi/lib -L${BUILD_DIR}/$(get_libdir)"
local CMAKE_USE_DIR=${WORKDIR}/libcxx
local BUILD_DIR=${BUILD_DIR}/libcxx
local mycmakeargs=(
-DLIBCXX_LIBDIR_SUFFIX=
-DLIBCXX_ENABLE_SHARED=ON
-DLIBCXX_ENABLE_STATIC=OFF
-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
-DLIBCXXABI_USE_LLVM_UNWINDER=ON
-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
)
cmake-utils_src_configure
cmake-utils_src_compile
}
multilib_src_test() {
# build local copies of libc++ & libc++abi for testing to avoid
# circular deps
build_libcxxabi
build_libcxx
mv "${BUILD_DIR}"/libcxx*/lib/libc++* "${BUILD_DIR}/$(get_libdir)/" || die
cmake-utils_src_make check-unwind
}
multilib_src_install() {
cmake-utils_src_install
# install headers like sys-libs/libunwind
doheader "${S}"/include/*.h
}
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