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111 lines
2.9 KiB
111 lines
2.9 KiB
5 years ago
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# Copyright 1999-2019 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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: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
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# (needed due to CMAKE_BUILD_TYPE != Gentoo)
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CMAKE_MIN_VERSION=3.7.0-r1
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PYTHON_COMPAT=( python{2_7,3_{5,6,7}} )
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inherit cmake-utils flag-o-matic llvm multiprocessing \
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python-any-r1 toolchain-funcs
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MY_P=${P}.src
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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/${PV}/${MY_P}.tar.xz"
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S=${WORKDIR}/${MY_P}
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LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
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SLOT="$(ver_cut 1-3)"
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KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86 ~amd64-fbsd ~amd64-linux ~ppc-macos ~x64-macos ~x86-macos"
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IUSE="+clang test"
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RESTRICT="!test? ( test ) !clang? ( test )"
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CLANG_SLOT=${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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clang? ( sys-devel/clang )
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test? (
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$(python_gen_any_dep "dev-python/lit[\${PYTHON_USEDEP}]")
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=sys-devel/clang-${PV%_*}*:${CLANG_SLOT} )
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${PYTHON_DEPS}"
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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/${SLOT}"
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-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
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-DCOMPILER_RT_BUILD_LIBFUZZER=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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)
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if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
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mycmakeargs+=(
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# disable use of SDK for the system itself
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-DDARWIN_macosx_CACHED_SYSROOT=/
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)
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fi
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if use test; then
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mycmakeargs+=(
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-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
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-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
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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-utils_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-utils_src_make check-builtins
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}
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