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291 lines
8.8 KiB
291 lines
8.8 KiB
# Copyright 1999-2020 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_{6,7,8} )
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inherit cmake-utils llvm llvm.org multilib-minimal multiprocessing \
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pax-utils python-single-r1 toolchain-funcs
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MANPAGE_P=llvm-9.0.0-manpages
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DESCRIPTION="C language family frontend for LLVM"
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HOMEPAGE="https://llvm.org/"
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SRC_URI="
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!doc? ( https://dev.gentoo.org/~mgorny/dist/llvm/${MANPAGE_P}.tar.bz2 )"
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LLVM_COMPONENTS=( clang clang-tools-extra )
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LLVM_TEST_COMPONENTS=(
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llvm/lib/Testing/Support
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llvm/utils/{lit,llvm-lit,unittest}
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)
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llvm.org_set_globals
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# We need extra level of indirection for CLANG_RESOURCE_DIR
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S=${WORKDIR}/x/y/clang
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# Keep in sync with sys-devel/llvm
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ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
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NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore )
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ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
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# MSVCSetupApi.h: MIT
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# sorttable.js: MIT
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LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
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SLOT="$(ver_cut 1)"
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KEYWORDS="amd64 arm arm64 ppc64 x86 ~amd64-linux"
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IUSE="debug default-compiler-rt default-libcxx doc +static-analyzer
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test xml kernel_FreeBSD ${ALL_LLVM_TARGETS[*]}"
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REQUIRED_USE="${PYTHON_REQUIRED_USE}
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|| ( ${ALL_LLVM_TARGETS[*]} )"
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RESTRICT="!test? ( test )"
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RDEPEND="
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~sys-devel/llvm-${PV}:${SLOT}=[debug=,${MULTILIB_USEDEP}]
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static-analyzer? ( dev-lang/perl:* )
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xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
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${PYTHON_DEPS}"
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for x in "${ALL_LLVM_TARGETS[@]}"; do
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RDEPEND+="
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${x}? ( ~sys-devel/llvm-${PV}:${SLOT}[${x}] )"
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done
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unset x
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DEPEND="${RDEPEND}"
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BDEPEND="
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doc? ( dev-python/sphinx )
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xml? ( virtual/pkgconfig )
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${PYTHON_DEPS}"
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RDEPEND="${RDEPEND}
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!<sys-devel/llvm-4.0.0_rc:0
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!sys-devel/clang:0"
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PDEPEND="
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sys-devel/clang-common
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~sys-devel/clang-runtime-${PV}
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default-compiler-rt? ( =sys-libs/compiler-rt-${PV%_*}* )
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default-libcxx? ( >=sys-libs/libcxx-${PV} )"
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# least intrusive of all
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CMAKE_BUILD_TYPE=RelWithDebInfo
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# Multilib notes:
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# 1. ABI_* flags control ABIs libclang* is built for only.
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# 2. clang is always capable of compiling code for all ABIs for enabled
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# target. However, you will need appropriate crt* files (installed
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# e.g. by sys-devel/gcc and sys-libs/glibc).
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# 3. ${CHOST}-clang wrappers are always installed for all ABIs included
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# in the current profile (i.e. alike supported by sys-devel/gcc).
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#
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# Therefore: use sys-devel/clang[${MULTILIB_USEDEP}] only if you need
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# multilib clang* libraries (not runtime, not wrappers).
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pkg_setup() {
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LLVM_MAX_SLOT=${SLOT} llvm_pkg_setup
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python-single-r1_pkg_setup
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}
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src_unpack() {
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# create extra parent dir for CLANG_RESOURCE_DIR
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mkdir -p x/y || die
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cd x/y || die
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llvm.org_src_unpack
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mv clang-tools-extra clang/tools/extra || die
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if ! use doc; then
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ebegin "Unpacking ${MANPAGE_P}.tar.bz2"
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tar -xf "${DISTDIR}/${MANPAGE_P}.tar.bz2" || die
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eend ${?}
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fi
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}
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multilib_src_configure() {
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local llvm_version=$(llvm-config --version) || die
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local clang_version=$(ver_cut 1-3 "${llvm_version}")
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local mycmakeargs=(
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-DLLVM_CMAKE_PATH="${EPREFIX}/usr/lib/llvm/${SLOT}/$(get_libdir)/cmake/llvm"
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-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${SLOT}"
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-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${SLOT}/share/man"
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# relative to bindir
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-DCLANG_RESOURCE_DIR="../../../../lib/clang/${clang_version}"
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-DBUILD_SHARED_LIBS=ON
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-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
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-DLLVM_BUILD_TESTS=$(usex test)
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# these are not propagated reliably, so redefine them
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-DLLVM_ENABLE_EH=ON
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-DLLVM_ENABLE_RTTI=ON
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-DCMAKE_DISABLE_FIND_PACKAGE_LibXml2=$(usex !xml)
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# libgomp support fails to find headers without explicit -I
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# furthermore, it provides only syntax checking
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-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
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# override default stdlib and rtlib
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-DCLANG_DEFAULT_CXX_STDLIB=$(usex default-libcxx libc++ "")
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-DCLANG_DEFAULT_RTLIB=$(usex default-compiler-rt compiler-rt "")
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-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
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-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
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)
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use test && mycmakeargs+=(
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-DLLVM_MAIN_SRC_DIR="${WORKDIR}/x/y/llvm"
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-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
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)
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if multilib_is_native_abi; then
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mycmakeargs+=(
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# normally copied from LLVM_INCLUDE_DOCS but the latter
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# is lacking value in stand-alone builds
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-DCLANG_INCLUDE_DOCS=$(usex doc)
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-DCLANG_TOOLS_EXTRA_INCLUDE_DOCS=$(usex doc)
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)
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use doc && mycmakeargs+=(
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-DLLVM_BUILD_DOCS=ON
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-DLLVM_ENABLE_SPHINX=ON
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-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
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-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
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-DSPHINX_WARNINGS_AS_ERRORS=OFF
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)
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else
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mycmakeargs+=(
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-DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
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)
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fi
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if [[ -n ${EPREFIX} ]]; then
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mycmakeargs+=(
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-DGCC_INSTALL_PREFIX="${EPREFIX}/usr"
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)
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fi
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if tc-is-cross-compiler; then
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[[ -x "/usr/bin/clang-tblgen" ]] \
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|| die "/usr/bin/clang-tblgen not found or usable"
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mycmakeargs+=(
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-DCMAKE_CROSSCOMPILING=ON
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-DCLANG_TABLEGEN=/usr/bin/clang-tblgen
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)
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fi
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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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cmake-utils_src_configure
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}
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multilib_src_compile() {
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cmake-utils_src_compile
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# provide a symlink for tests
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if [[ ! -L ${WORKDIR}/lib/clang ]]; then
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mkdir -p "${WORKDIR}"/lib || die
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ln -s "${BUILD_DIR}/$(get_libdir)/clang" "${WORKDIR}"/lib/clang || die
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fi
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}
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multilib_src_test() {
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# respect TMPDIR!
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local -x LIT_PRESERVES_TMP=1
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cmake-utils_src_make check-clang
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multilib_is_native_abi &&
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cmake-utils_src_make check-clang-tools check-clangd
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}
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src_install() {
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MULTILIB_WRAPPED_HEADERS=(
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/usr/include/clang/Config/config.h
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)
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multilib-minimal_src_install
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# Move runtime headers to /usr/lib/clang, where they belong
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mv "${ED}"/usr/include/clangrt "${ED}"/usr/lib/clang || die
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# move (remaining) wrapped headers back
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mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${SLOT}/include || die
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# Apply CHOST and version suffix to clang tools
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# note: we use two version components here (vs 3 in runtime path)
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local llvm_version=$(llvm-config --version) || die
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local clang_version=$(ver_cut 1 "${llvm_version}")
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local clang_full_version=$(ver_cut 1-3 "${llvm_version}")
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local clang_tools=( clang clang++ clang-cl clang-cpp )
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local abi i
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# cmake gives us:
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# - clang-X
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# - clang -> clang-X
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# - clang++, clang-cl, clang-cpp -> clang
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# we want to have:
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# - clang-X
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# - clang++-X, clang-cl-X, clang-cpp-X -> clang-X
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# - clang, clang++, clang-cl, clang-cpp -> clang*-X
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# also in CHOST variant
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for i in "${clang_tools[@]:1}"; do
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rm "${ED}/usr/lib/llvm/${SLOT}/bin/${i}" || die
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dosym "clang-${clang_version}" "/usr/lib/llvm/${SLOT}/bin/${i}-${clang_version}"
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dosym "${i}-${clang_version}" "/usr/lib/llvm/${SLOT}/bin/${i}"
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done
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# now create target symlinks for all supported ABIs
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for abi in $(get_all_abis); do
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local abi_chost=$(get_abi_CHOST "${abi}")
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for i in "${clang_tools[@]}"; do
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dosym "${i}-${clang_version}" \
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"/usr/lib/llvm/${SLOT}/bin/${abi_chost}-${i}-${clang_version}"
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dosym "${abi_chost}-${i}-${clang_version}" \
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"/usr/lib/llvm/${SLOT}/bin/${abi_chost}-${i}"
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done
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done
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# Remove unnecessary headers on FreeBSD, bug #417171
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if use kernel_FreeBSD; then
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rm "${ED}"/usr/lib/clang/${clang_full_version}/include/{std,float,iso,limits,tgmath,varargs}*.h || die
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fi
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}
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multilib_src_install() {
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cmake-utils_src_install
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# move headers to /usr/include for wrapping & ABI mismatch checks
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# (also drop the version suffix from runtime headers)
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rm -rf "${ED}"/usr/include || die
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mv "${ED}"/usr/lib/llvm/${SLOT}/include "${ED}"/usr/include || die
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mv "${ED}"/usr/lib/llvm/${SLOT}/$(get_libdir)/clang "${ED}"/usr/include/clangrt || die
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}
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multilib_src_install_all() {
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python_fix_shebang "${ED}"
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if use static-analyzer; then
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python_optimize "${ED}"/usr/lib/llvm/${SLOT}/share/scan-view
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fi
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# install pre-generated manpages
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if ! use doc; then
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insinto "/usr/lib/llvm/${SLOT}/share/man/man1"
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doins "${WORKDIR}/x/y/${MANPAGE_P}/clang"/*.1
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fi
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docompress "/usr/lib/llvm/${SLOT}/share/man"
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# match 'html' non-compression
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use doc && docompress -x "/usr/share/doc/${PF}/tools-extra"
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# +x for some reason; TODO: investigate
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use static-analyzer && fperms a-x "/usr/lib/llvm/${SLOT}/share/man/man1/scan-build.1"
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}
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pkg_postinst() {
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if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
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eselect compiler-shadow update all
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fi
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elog "You can find additional utility scripts in:"
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elog " ${EROOT}/usr/lib/llvm/${SLOT}/share/clang"
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elog "Some of them are vim integration scripts (with instructions inside)."
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elog "The run-clang-tidy.py script requires the following additional package:"
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elog " dev-python/pyyaml"
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}
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pkg_postrm() {
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if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
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eselect compiler-shadow clean all
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fi
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}
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