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126 lines
3.4 KiB
126 lines
3.4 KiB
# Copyright 1999-2021 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=7
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PYTHON_COMPAT=( python3_{8..10} )
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inherit cmake flag-o-matic llvm llvm.org 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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LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
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SLOT="$(ver_cut 1-3)"
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KEYWORDS=""
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IUSE="+clang test"
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RESTRICT="!test? ( test ) !clang? ( test )"
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CLANG_SLOT=${SLOT%%.*}
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# llvm-6 for new lit options
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DEPEND="
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>=sys-devel/llvm-6"
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BDEPEND="
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>=dev-util/cmake-3.16
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clang? ( sys-devel/clang )
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test? (
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$(python_gen_any_dep ">=dev-python/lit-9.0.1[\${PYTHON_USEDEP}]")
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=sys-devel/clang-${PV%_*}*:${CLANG_SLOT}
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)
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${PYTHON_DEPS}"
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LLVM_COMPONENTS=( compiler-rt )
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LLVM_PATCHSET=9999-1
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llvm.org_set_globals
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python_check_deps() {
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use test || return 0
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has_version "dev-python/lit[${PYTHON_USEDEP}]"
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}
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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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# Darwin Prefix builds do not have llvm installed yet, so rely on
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# bootstrap-prefix to set the appropriate path vars to LLVM instead
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# of using llvm_pkg_setup.
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if [[ ${CHOST} != *-darwin* ]] || has_version dev-lang/llvm; then
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llvm_pkg_setup
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fi
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python-any-r1_pkg_setup
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}
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test_compiler() {
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$(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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strip-unsupported-flags
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# ensure we can use clang before installing compiler-rt
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local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
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elif ! test_compiler; then
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if test_compiler "${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/${SLOT}"
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-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
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-DCOMPILER_RT_BUILD_LIBFUZZER=OFF
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-DCOMPILER_RT_BUILD_MEMPROF=OFF
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-DCOMPILER_RT_BUILD_ORC=OFF
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-DCOMPILER_RT_BUILD_PROFILE=OFF
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-DCOMPILER_RT_BUILD_SANITIZERS=OFF
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-DCOMPILER_RT_BUILD_XRAY=OFF
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-DPython3_EXECUTABLE="${PYTHON}"
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)
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if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
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mycmakeargs+=(
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# setting -isysroot is disabled with compiler-rt-prefix-paths.patch
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# this allows adding arm64 support using SDK in EPREFIX
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-DDARWIN_macosx_CACHED_SYSROOT="${EPREFIX}/MacOSX.sdk"
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# Set version based on the SDK in EPREFIX.
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# This disables i386 for SDK >= 10.15
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-DDARWIN_macosx_OVERRIDE_SDK_VERSION="$(realpath ${EPREFIX}/MacOSX.sdk | sed -e 's/.*MacOSX\(.*\)\.sdk/\1/')"
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# Use our libtool instead of looking it up with xcrun
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-DCMAKE_LIBTOOL="${EPREFIX}/usr/bin/${CHOST}-libtool"
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)
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fi
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if use test; then
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mycmakeargs+=(
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-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
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-DLLVM_LIT_ARGS="$(get_lit_flags)"
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-DCOMPILER_RT_TEST_COMPILER="${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/bin/clang"
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-DCOMPILER_RT_TEST_CXX_COMPILER="${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/bin/clang++"
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)
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fi
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cmake_src_configure
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}
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src_test() {
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# respect TMPDIR!
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local -x LIT_PRESERVES_TMP=1
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cmake_build check-builtins
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}
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