144 lines
4 KiB
Bash
144 lines
4 KiB
Bash
# Copyright 1999-2017 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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EAPI=6
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: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
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# (needed due to CMAKE_BUILD_TYPE != Gentoo)
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CMAKE_MIN_VERSION=3.7.0-r1
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PYTHON_COMPAT=( python2_7 )
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# TODO: fix unnecessary dep on Python upstream
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inherit cmake-utils flag-o-matic llvm python-any-r1 toolchain-funcs
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DESCRIPTION="Compiler runtime library for clang (built-in part)"
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HOMEPAGE="https://llvm.org/"
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SRC_URI="https://releases.llvm.org/${PV/_//}/${P/_/}.src.tar.xz"
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LICENSE="|| ( UoI-NCSA MIT )"
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SLOT="${PV%_*}"
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KEYWORDS="amd64 ~arm64 x86"
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IUSE="+clang test"
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CLANG_SLOT=${SLOT%%.*}
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RDEPEND="!=sys-libs/compiler-rt-${SLOT}*:0"
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# llvm-4 needed for --cmakedir
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DEPEND="
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>=sys-devel/llvm-4
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clang? ( sys-devel/clang )
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test? ( =sys-devel/clang-${PV%_*}*:${CLANG_SLOT} )
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${PYTHON_DEPS}"
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S=${WORKDIR}/${P/_/}.src
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# least intrusive of all
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CMAKE_BUILD_TYPE=RelWithDebInfo
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pkg_pretend() {
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if ! use clang && ! tc-is-clang; then
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ewarn "Building using a compiler other than clang may result in broken atomics"
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ewarn "library. Enable USE=clang unless you have a very good reason not to."
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fi
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}
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pkg_setup() {
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llvm_pkg_setup
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python-any-r1_pkg_setup
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}
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test_compiler() {
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$(tc-getCC) ${CFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c - \
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<<<'int main() { return 0; }' &>/dev/null
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}
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src_configure() {
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# pre-set since we need to pass it to cmake
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BUILD_DIR=${WORKDIR}/${P}_build
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local nolib_flags=( -nodefaultlibs -lc )
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if use clang; then
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local -x CC=${CHOST}-clang
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local -x CXX=${CHOST}-clang++
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# ensure we can use clang before installing compiler-rt
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local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
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strip-unsupported-flags
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elif ! test_compiler; then
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if test_compiler "${nolib_flags[@]}"; then
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local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
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ewarn "${CC} seems to lack runtime, trying with ${nolib_flags[*]}"
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fi
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fi
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local mycmakeargs=(
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-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${SLOT}"
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# use a build dir structure consistent with install
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# this makes it possible to easily deploy test-friendly clang
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-DCOMPILER_RT_OUTPUT_DIR="${BUILD_DIR}/lib/clang/${SLOT}"
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# currently lit covers only sanitizer tests
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-DCOMPILER_RT_INCLUDE_TESTS=OFF
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-DCOMPILER_RT_BUILD_SANITIZERS=OFF
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-DCOMPILER_RT_BUILD_XRAY=OFF
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)
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cmake-utils_src_configure
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}
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src_test() {
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# prepare a test compiler
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# copy clang over since resource_dir is located relatively to binary
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# therefore, we can put our new libraries in it
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mkdir -p "${BUILD_DIR}"/lib/{llvm/${CLANG_SLOT}{/bin,$(get_libdir)},clang/${SLOT}/include} || die
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cp "${EPREFIX}"/usr/lib/llvm/${CLANG_SLOT}/bin/clang{,++} \
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"${BUILD_DIR}"/lib/llvm/${CLANG_SLOT}/bin/ || die
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cp "${EPREFIX}/usr/lib/clang/${SLOT}/include"/*.h \
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"${BUILD_DIR}/lib/clang/${SLOT}/include/" || die
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# builtins are not converted to lit yet, so run them manually
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local tests=() f
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cd "${S}"/test/builtins/Unit || die
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while read -r -d '' f; do
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# ppc subdir is unmaintained and lacks proper guards
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# (and ppc builtins do not seem to be used anyway)
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[[ ${f} == ./ppc/* ]] && continue
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# these are special
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[[ ${f} == ./cpu_model_test.c ]] && continue
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[[ ${f} == ./gcc_personality_test.c ]] && continue
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# unsupported
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[[ ${f} == ./trampoline_setup_test.c ]] && continue
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tests+=( "${f%.c}" )
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done < <(find -name '*.c' -print0)
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{
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echo "check: ${tests[*]/#/check-}" &&
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echo ".PHONY: check ${tests[*]/#/check-}" &&
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for f in "${tests[@]}"; do
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echo "check-${f}: ${f}" &&
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echo " ${f}"
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done
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} > Makefile || die
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local ABI
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for ABI in $(get_all_abis); do
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# not supported at all at the moment
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[[ ${ABI} == x32 ]] && continue
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rm -f "${tests[@]}" || die
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einfo "Running tests for ABI=${ABI}"
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# use -k to run all tests even if some fail
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emake -k \
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CC="${BUILD_DIR}/lib/llvm/${CLANG_SLOT}/bin/clang" \
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CFLAGS="$(get_abi_CFLAGS)" \
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CPPFLAGS='-I../../../lib/builtins' \
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LDFLAGS='-rtlib=compiler-rt' \
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LDLIBS='-lm'
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done
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}
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src_install() {
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cmake-utils_src_install
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# includes are mistakenly installed for all sanitizers and xray
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rm -rf "${ED}"usr/lib/clang/*/include || die
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}
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