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150 lines
4.1 KiB
150 lines
4.1 KiB
# Copyright 1999-2024 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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PYTHON_COMPAT=( python3_{10..11} )
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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="${LLVM_VERSION}"
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KEYWORDS="amd64 arm arm64 ppc64 ~riscv x86 ~amd64-linux ~ppc-macos ~x64-macos"
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IUSE="+abi_x86_32 abi_x86_64 +clang debug test"
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RESTRICT="!test? ( test ) !clang? ( test )"
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DEPEND="
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sys-devel/llvm:${LLVM_MAJOR}
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"
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BDEPEND="
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clang? ( sys-devel/clang )
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test? (
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$(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]")
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=sys-devel/clang-${LLVM_VERSION}*:${LLVM_MAJOR}
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)
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!test? (
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${PYTHON_DEPS}
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)
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"
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LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake )
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LLVM_PATCHSET=${PV/_/-}
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llvm.org_set_globals
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python_check_deps() {
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use test || return 0
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python_has_version ">=dev-python/lit-15[${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 [[ ${CHOST} != *-darwin* ]] || has_version sys-devel/llvm; then
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LLVM_MAX_SLOT=${LLVM_MAJOR} 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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# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
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use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
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# pre-set since we need to pass it to cmake
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BUILD_DIR=${WORKDIR}/${P}_build
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if use clang; then
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# Only do this conditionally to allow overriding with
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# e.g. CC=clang-13 in case of breakage
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if ! tc-is-clang ; then
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local -x CC=${CHOST}-clang
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local -x CXX=${CHOST}-clang++
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fi
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strip-unsupported-flags
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fi
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if ! test_compiler; then
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local nolib_flags=( -nodefaultlibs -lc )
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if test_compiler "${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 ${nolib_flags[*]}"
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elif test_compiler "${nolib_flags[@]}" -nostartfiles; then
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# Avoiding -nostartfiles earlier on for bug #862540,
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# and set available entry symbol for bug #862798.
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nolib_flags+=( -nostartfiles -emain )
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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/${LLVM_VERSION}"
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-DCOMPILER_RT_INCLUDE_TESTS=$(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="${PYTHON}"
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)
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if use amd64; then
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mycmakeargs+=(
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-DCAN_TARGET_i386=$(usex abi_x86_32)
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-DCAN_TARGET_x86_64=$(usex abi_x86_64)
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)
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fi
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if use prefix && [[ "${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="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang"
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-DCOMPILER_RT_TEST_CXX_COMPILER="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/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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