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484 lines
12 KiB
484 lines
12 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..12} )
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inherit cmake flag-o-matic llvm llvm.org multilib multilib-minimal
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inherit prefix python-single-r1 toolchain-funcs
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DESCRIPTION="C language family frontend for LLVM"
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HOMEPAGE="https://llvm.org/"
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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="${LLVM_MAJOR}/${LLVM_SOABI}"
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KEYWORDS="amd64 arm arm64 ~loong ppc ppc64 ~riscv sparc x86 ~amd64-linux ~arm64-macos ~x64-macos"
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IUSE="debug doc +extra ieee-long-double +pie +static-analyzer test xml"
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REQUIRED_USE="${PYTHON_REQUIRED_USE}"
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RESTRICT="!test? ( test )"
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DEPEND="
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~sys-devel/llvm-${PV}:${LLVM_MAJOR}=[debug=,${MULTILIB_USEDEP}]
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static-analyzer? ( dev-lang/perl:* )
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xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
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"
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RDEPEND="
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${PYTHON_DEPS}
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${DEPEND}
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>=sys-devel/clang-common-${PV}
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"
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BDEPEND="
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${PYTHON_DEPS}
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doc? ( $(python_gen_cond_dep '
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dev-python/recommonmark[${PYTHON_USEDEP}]
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dev-python/sphinx[${PYTHON_USEDEP}]
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') )
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xml? ( virtual/pkgconfig )
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"
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PDEPEND="
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~sys-devel/clang-runtime-${PV}
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sys-devel/clang-toolchain-symlinks:${LLVM_MAJOR}
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"
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LLVM_COMPONENTS=(
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clang clang-tools-extra cmake
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llvm/lib/Transforms/Hello
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)
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LLVM_MANPAGES=1
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LLVM_TEST_COMPONENTS=(
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llvm/lib/Testing
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llvm/utils
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third-party
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)
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LLVM_PATCHSET=${PV}
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LLVM_USE_TARGETS=llvm
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llvm.org_set_globals
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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=${LLVM_MAJOR} llvm_pkg_setup
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python-single-r1_pkg_setup
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}
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src_prepare() {
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# create extra parent dir for relative CLANG_RESOURCE_DIR access
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mkdir -p x/y || die
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BUILD_DIR=${WORKDIR}/x/y/clang
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llvm.org_src_prepare
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# add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch)
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eprefixify \
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lib/Lex/InitHeaderSearch.cpp \
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lib/Driver/ToolChains/Darwin.cpp || die
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if ! use prefix-guest && [[ -n ${EPREFIX} ]]; then
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sed -i "/LibDir.*Loader/s@return \"\/\"@return \"${EPREFIX}/\"@" lib/Driver/ToolChains/Linux.cpp || die
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fi
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}
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check_distribution_components() {
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if [[ ${CMAKE_MAKEFILE_GENERATOR} == ninja ]]; then
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local all_targets=() my_targets=() l
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cd "${BUILD_DIR}" || die
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while read -r l; do
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if [[ ${l} == install-*-stripped:* ]]; then
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l=${l#install-}
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l=${l%%-stripped*}
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case ${l} in
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# meta-targets
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clang-libraries|distribution)
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continue
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;;
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# tools
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clang|clangd|clang-*)
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;;
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# static libraries
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clang*|findAllSymbols)
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continue
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;;
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# conditional to USE=doc
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docs-clang-html|docs-clang-tools-html)
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use doc || continue
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;;
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esac
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all_targets+=( "${l}" )
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fi
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done < <(${NINJA} -t targets all)
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while read -r l; do
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my_targets+=( "${l}" )
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done < <(get_distribution_components $"\n")
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local add=() remove=()
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for l in "${all_targets[@]}"; do
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if ! has "${l}" "${my_targets[@]}"; then
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add+=( "${l}" )
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fi
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done
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for l in "${my_targets[@]}"; do
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if ! has "${l}" "${all_targets[@]}"; then
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remove+=( "${l}" )
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fi
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done
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if [[ ${#add[@]} -gt 0 || ${#remove[@]} -gt 0 ]]; then
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eqawarn "get_distribution_components() is outdated!"
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eqawarn " Add: ${add[*]}"
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eqawarn "Remove: ${remove[*]}"
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fi
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cd - >/dev/null || die
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fi
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}
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get_distribution_components() {
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local sep=${1-;}
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local out=(
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# common stuff
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clang-cmake-exports
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clang-headers
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clang-resource-headers
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libclang-headers
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aarch64-resource-headers
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arm-common-resource-headers
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arm-resource-headers
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core-resource-headers
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cuda-resource-headers
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hexagon-resource-headers
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hip-resource-headers
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hlsl-resource-headers
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mips-resource-headers
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opencl-resource-headers
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openmp-resource-headers
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ppc-htm-resource-headers
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ppc-resource-headers
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riscv-resource-headers
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systemz-resource-headers
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utility-resource-headers
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ve-resource-headers
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webassembly-resource-headers
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windows-resource-headers
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x86-resource-headers
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# libs
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clang-cpp
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libclang
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)
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if multilib_is_native_abi; then
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out+=(
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# common stuff
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bash-autocomplete
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libclang-python-bindings
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# tools
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amdgpu-arch
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c-index-test
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clang
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clang-format
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clang-linker-wrapper
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clang-offload-bundler
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clang-offload-packager
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clang-refactor
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clang-repl
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clang-rename
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clang-scan-deps
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diagtool
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hmaptool
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nvptx-arch
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# needed for cross-compiling Clang
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clang-tblgen
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)
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if use extra; then
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out+=(
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# extra tools
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clang-apply-replacements
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clang-change-namespace
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clang-doc
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clang-include-cleaner
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clang-include-fixer
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clang-move
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clang-pseudo
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clang-query
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clang-reorder-fields
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clang-tidy
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clang-tidy-headers
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clangd
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find-all-symbols
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modularize
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pp-trace
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)
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fi
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if llvm_are_manpages_built; then
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out+=( docs-clang-man )
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use extra && out+=( docs-clang-tools-man )
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fi
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if use doc; then
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out+=( docs-clang-html )
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use extra && out+=( docs-clang-tools-html )
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fi
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use static-analyzer && out+=(
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clang-check
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clang-extdef-mapping
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scan-build
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scan-build-py
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scan-view
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)
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fi
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printf "%s${sep}" "${out[@]}"
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}
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multilib_src_configure() {
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tc-is-gcc && filter-lto # GCC miscompiles LLVM, bug #873670
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local mycmakeargs=(
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-DDEFAULT_SYSROOT=$(usex prefix-guest "" "${EPREFIX}")
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-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
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-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/share/man"
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-DCLANG_CONFIG_FILE_SYSTEM_DIR="${EPREFIX}/etc/clang"
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# relative to bindir
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-DCLANG_RESOURCE_DIR="../../../../lib/clang/${LLVM_MAJOR}"
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-DBUILD_SHARED_LIBS=OFF
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-DCLANG_LINK_CLANG_DYLIB=ON
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-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
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-DCLANG_INCLUDE_TESTS=$(usex test)
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-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
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# these are not propagated reliably, so redefine them
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-DLLVM_ENABLE_EH=ON
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-DLLVM_ENABLE_RTTI=ON
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-DCMAKE_DISABLE_FIND_PACKAGE_LibXml2=$(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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# disable using CUDA to autodetect GPU, just build for all
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-DCMAKE_DISABLE_FIND_PACKAGE_CUDA=ON
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# disable linking to HSA to avoid automagic dep,
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# load it dynamically instead
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-DCMAKE_DISABLE_FIND_PACKAGE_hsa-runtime64=ON
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-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
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-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
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-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
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-DPython3_EXECUTABLE="${PYTHON}"
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)
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if ! use elibc_musl; then
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mycmakeargs+=(
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-DPPC_LINUX_DEFAULT_IEEELONGDOUBLE=$(usex ieee-long-double)
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)
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fi
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use test && mycmakeargs+=(
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-DLLVM_BUILD_TESTS=ON
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-DLLVM_LIT_ARGS="$(get_lit_flags)"
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)
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if multilib_is_native_abi; then
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local build_docs=OFF
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if llvm_are_manpages_built; then
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build_docs=ON
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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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-DSPHINX_WARNINGS_AS_ERRORS=OFF
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)
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if use extra; then
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mycmakeargs+=(
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-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
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)
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fi
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fi
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mycmakeargs+=(
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-DCLANG_INCLUDE_DOCS=${build_docs}
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)
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fi
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if multilib_native_use extra; then
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mycmakeargs+=(
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-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
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-DCLANG_TOOLS_EXTRA_INCLUDE_DOCS=${build_docs}
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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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has_version -b sys-devel/clang:${LLVM_MAJOR} ||
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die "sys-devel/clang:${LLVM_MAJOR} is required on the build host."
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local tools_bin=${BROOT}/usr/lib/llvm/${LLVM_MAJOR}/bin
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mycmakeargs+=(
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-DLLVM_TOOLS_BINARY_DIR="${tools_bin}"
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-DCLANG_TABLEGEN="${tools_bin}"/clang-tblgen
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)
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fi
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# LLVM can have very high memory consumption while linking,
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# exhausting the limit on 32-bit linker executable
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use x86 && local -x LDFLAGS="${LDFLAGS} -Wl,--no-keep-memory"
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# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
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use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
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cmake_src_configure
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multilib_is_native_abi && check_distribution_components
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}
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multilib_src_compile() {
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cmake_build distribution
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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" "${WORKDIR}"/lib/clang || die
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fi
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}
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multilib_src_test() {
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# respect TMPDIR!
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local -x LIT_PRESERVES_TMP=1
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local test_targets=( check-clang )
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if multilib_native_use extra; then
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test_targets+=(
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check-clang-tools
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check-clangd
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)
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fi
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cmake_build "${test_targets[@]}"
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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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if use extra; then
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mv "${T}"/clang-tidy "${ED}"/usr/include/ || die
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fi
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mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include || die
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# Apply CHOST and version suffix to clang tools
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local clang_tools=( clang clang++ clang-cl clang-cpp )
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local abi i
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# cmake gives us:
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# - clang-X
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# - clang -> clang-X
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# - clang++, clang-cl, clang-cpp -> clang
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# we want to have:
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# - clang-X
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# - clang++-X, clang-cl-X, clang-cpp-X -> clang-X
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# - clang, clang++, clang-cl, clang-cpp -> clang*-X
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# also in CHOST variant
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for i in "${clang_tools[@]:1}"; do
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rm "${ED}/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}" || die
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dosym "clang-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}-${LLVM_MAJOR}"
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dosym "${i}-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/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 "${i}-${LLVM_MAJOR}" \
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"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}-${LLVM_MAJOR}"
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dosym "${abi_chost}-${i}-${LLVM_MAJOR}" \
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"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}"
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done
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done
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}
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multilib_src_install() {
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DESTDIR=${D} cmake_build install-distribution
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# move headers to /usr/include for wrapping & ABI mismatch checks
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# (also drop the version suffix from runtime headers)
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rm -rf "${ED}"/usr/include || die
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mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include "${ED}"/usr/include || die
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mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/clang "${ED}"/usr/include/clangrt || die
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if multilib_native_use extra; then
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# don't wrap clang-tidy headers, the list is too long
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# (they're fine for non-native ABI but enabling the targets is problematic)
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mv "${ED}"/usr/include/clang-tidy "${T}/" || die
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fi
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}
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multilib_src_install_all() {
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python_fix_shebang "${ED}"
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if use static-analyzer; then
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python_optimize "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/share/scan-view
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fi
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docompress "/usr/lib/llvm/${LLVM_MAJOR}/share/man"
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llvm_install_manpages
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# match 'html' non-compression
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use doc && docompress -x "/usr/share/doc/${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/${LLVM_MAJOR}/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 " ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/clang"
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if use extra; then
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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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fi
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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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