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280 lines
8.9 KiB
280 lines
8.9 KiB
# 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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: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
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# (needed due to CMAKE_BUILD_TYPE != Gentoo)
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CMAKE_MIN_VERSION=3.7.0-r1
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PYTHON_COMPAT=( python2_7 )
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inherit cmake-utils flag-o-matic llvm multilib-minimal \
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python-single-r1 toolchain-funcs pax-utils versionator
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DESCRIPTION="C language family frontend for LLVM"
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HOMEPAGE="http://llvm.org/"
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SRC_URI="http://releases.llvm.org/${PV/_//}/cfe-${PV/_/}.src.tar.xz
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http://releases.llvm.org/${PV/_//}/clang-tools-extra-${PV/_/}.src.tar.xz
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!doc? ( https://dev.gentoo.org/~mgorny/dist/llvm/llvm-manpages-${PV}.tar.bz2 )
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test? ( http://releases.llvm.org/${PV/_//}/llvm-${PV/_/}.src.tar.xz )"
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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 X86 XCore )
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ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
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LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
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LICENSE="UoI-NCSA"
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SLOT="$(get_major_version)"
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KEYWORDS="~amd64 ~arm64 ~x86"
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IUSE="debug default-compiler-rt default-libcxx +doc multitarget
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+static-analyzer test xml elibc_musl kernel_FreeBSD ${ALL_LLVM_TARGETS[*]}"
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RDEPEND="
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~sys-devel/llvm-${PV}:${SLOT}=[debug=,${LLVM_TARGET_USEDEPS// /,},${MULTILIB_USEDEP}]
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static-analyzer? ( dev-lang/perl:* )
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xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
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${PYTHON_DEPS}"
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# configparser-3.2 breaks the build (3.3 or none at all are fine)
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DEPEND="${RDEPEND}
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doc? ( dev-python/sphinx )
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test? ( ~dev-python/lit-${PV}[${PYTHON_USEDEP}] )
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xml? ( virtual/pkgconfig )
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!!<dev-python/configparser-3.3.0.2
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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-runtime-${PV}
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default-compiler-rt? ( =sys-libs/compiler-rt-${PV%_*}* )
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default-libcxx? ( sys-libs/libcxx )"
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REQUIRED_USE="${PYTHON_REQUIRED_USE}
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|| ( ${ALL_LLVM_TARGETS[*]} )
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multitarget? ( ${ALL_LLVM_TARGETS[*]} )"
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# We need extra level of indirection for CLANG_RESOURCE_DIR
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S=${WORKDIR}/x/y/cfe-${PV/_/}.src
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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=${SLOT} llvm_pkg_setup
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python-single-r1_pkg_setup
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}
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src_unpack() {
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# create extra parent dirs for CLANG_RESOURCE_DIR
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mkdir -p x/y || die
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cd x/y || die
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default
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mv clang-tools-extra-* "${S}"/tools/extra || die
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if use test; then
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mv llvm-* "${WORKDIR}"/llvm || die
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fi
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}
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src_prepare() {
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# fix finding compiler-rt libs
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eapply "${FILESDIR}"/9999/0001-Driver-Use-arch-type-to-find-compiler-rt-libraries-o.patch
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# fix stand-alone doc build
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eapply "${FILESDIR}"/9999/0007-cmake-Support-stand-alone-Sphinx-doxygen-doc-build.patch
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# fix value of ATOMIC_*_LOCK_FREE
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# (backport, temporary reverted upstream because of FreeBSD issues)
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eapply "${FILESDIR}"/4.0.1/0001-Frontend-Correct-values-of-ATOMIC_-_LOCK_FREE-to-mat.patch
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cd tools/extra || die
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# fix stand-alone test build for extra tools
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eapply "${FILESDIR}"/4.0.1/extra/0001-test-Fix-test-dependencies-when-using-installed-tool.patch
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eapply "${FILESDIR}"/4.0.1/extra/0002-test-Fix-clang-library-dir-in-LD_LIBRARY_PATH-For-st.patch
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cd - >/dev/null || die
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# User patches
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eapply_user
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}
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multilib_src_configure() {
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local llvm_version=$(llvm-config --version) || die
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local clang_version=$(get_version_component_range 1-3 "${llvm_version}")
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local mycmakeargs=(
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# ensure that the correct llvm-config is used
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-DLLVM_CONFIG="$(type -P "${CHOST}-llvm-config")"
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-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${SLOT}"
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# relative to bindir
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-DCLANG_RESOURCE_DIR="../../../../lib/clang/${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}/llvm"
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-DLIT_COMMAND="${EPREFIX}/usr/bin/lit"
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)
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if multilib_is_native_abi; then
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mycmakeargs+=(
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-DLLVM_BUILD_DOCS=$(usex doc)
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-DLLVM_ENABLE_SPHINX=$(usex doc)
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-DLLVM_ENABLE_DOXYGEN=OFF
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# workaround pthread
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-DPTHREAD_LIB=-pthread
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)
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use doc && mycmakeargs+=(
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-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
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-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
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-DSPHINX_WARNINGS_AS_ERRORS=OFF
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)
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else
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mycmakeargs+=(
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-DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
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)
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fi
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if tc-is-cross-compiler; then
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[[ -x "/usr/bin/clang-tblgen" ]] \
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|| die "/usr/bin/clang-tblgen not found or usable"
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mycmakeargs+=(
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-DCMAKE_CROSSCOMPILING=ON
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-DCLANG_TABLEGEN=/usr/bin/clang-tblgen
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)
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fi
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# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
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use debug || local -x CPPFLAGS="${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" "${WORKDIR}"/lib/clang || die
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fi
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}
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multilib_src_test() {
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# respect TMPDIR!
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local -x LIT_PRESERVES_TMP=1
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cmake-utils_src_make check-clang
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multilib_is_native_abi && cmake-utils_src_make check-clang-tools
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}
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src_install() {
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MULTILIB_WRAPPED_HEADERS=(
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/usr/include/clang/Config/config.h
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)
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multilib-minimal_src_install
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# Move runtime headers to /usr/lib/clang, where they belong
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mv "${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=$(llvm-config --version) || die
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local clang_version=$(get_version_component_range 1-2 "${llvm_version}")
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local clang_full_version=$(get_version_component_range 1-3 "${llvm_version}")
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local clang_tools=( clang clang++ clang-cl clang-cpp )
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local abi i
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# cmake gives us:
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# - clang-X.Y
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# - clang -> clang-X.Y
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# - clang++, clang-cl, clang-cpp -> clang
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# we want to have:
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# - clang-X.Y
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# - clang++-X.Y, clang-cl-X.Y, clang-cpp-X.Y -> clang-X.Y
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# - clang, clang++, clang-cl, clang-cpp -> clang*-X.Y
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# also in CHOST variant
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for i in "${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 "${WORKDIR}/x/y/llvm-manpages-${PV}/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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