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|
# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{10..12} )
inherit cmake llvm llvm.org multilib multilib-minimal
inherit prefix python-single-r1 toolchain-funcs
DESCRIPTION="C language family frontend for LLVM"
HOMEPAGE="https://llvm.org/"
# MSVCSetupApi.h: MIT
# sorttable.js: MIT
LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA MIT"
SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
KEYWORDS="amd64 ~arm arm64 ~loong ~ppc ~ppc64 ~riscv ~sparc x86 ~amd64-linux ~arm64-macos ~x64-macos"
IUSE="debug doc +extra ieee-long-double +pie +static-analyzer test xml"
REQUIRED_USE="${PYTHON_REQUIRED_USE}"
RESTRICT="!test? ( test )"
DEPEND="
~sys-devel/llvm-${PV}:${LLVM_MAJOR}=[debug=,${MULTILIB_USEDEP}]
static-analyzer? ( dev-lang/perl:* )
xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
"
RDEPEND="
${PYTHON_DEPS}
${DEPEND}
>=sys-devel/clang-common-${PV}
"
BDEPEND="
${PYTHON_DEPS}
doc? ( $(python_gen_cond_dep '
dev-python/recommonmark[${PYTHON_USEDEP}]
dev-python/sphinx[${PYTHON_USEDEP}]
') )
xml? ( virtual/pkgconfig )
"
PDEPEND="
~sys-devel/clang-runtime-${PV}
sys-devel/clang-toolchain-symlinks:${LLVM_MAJOR}
"
LLVM_COMPONENTS=(
clang clang-tools-extra cmake
llvm/lib/Transforms/Hello
)
LLVM_MANPAGES=1
LLVM_PATCHSET=${PV}-r1
LLVM_TEST_COMPONENTS=(
llvm/utils
)
LLVM_USE_TARGETS=llvm
llvm.org_set_globals
# Multilib notes:
# 1. ABI_* flags control ABIs libclang* is built for only.
# 2. clang is always capable of compiling code for all ABIs for enabled
# target. However, you will need appropriate crt* files (installed
# e.g. by sys-devel/gcc and sys-libs/glibc).
# 3. ${CHOST}-clang wrappers are always installed for all ABIs included
# in the current profile (i.e. alike supported by sys-devel/gcc).
#
# Therefore: use sys-devel/clang[${MULTILIB_USEDEP}] only if you need
# multilib clang* libraries (not runtime, not wrappers).
pkg_setup() {
LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
python-single-r1_pkg_setup
}
src_prepare() {
# create extra parent dir for relative CLANG_RESOURCE_DIR access
mkdir -p x/y || die
BUILD_DIR=${WORKDIR}/x/y/clang
llvm.org_src_prepare
# add Gentoo Portage Prefix for Darwin (see prefix-dirs.patch)
eprefixify \
lib/Lex/InitHeaderSearch.cpp \
lib/Driver/ToolChains/Darwin.cpp || die
if ! use prefix-guest && [[ -n ${EPREFIX} ]]; then
sed -i "/LibDir.*Loader/s@return \"\/\"@return \"${EPREFIX}/\"@" lib/Driver/ToolChains/Linux.cpp || die
fi
}
check_distribution_components() {
if [[ ${CMAKE_MAKEFILE_GENERATOR} == ninja ]]; then
local all_targets=() my_targets=() l
cd "${BUILD_DIR}" || die
while read -r l; do
if [[ ${l} == install-*-stripped:* ]]; then
l=${l#install-}
l=${l%%-stripped*}
case ${l} in
# meta-targets
clang-libraries|distribution)
continue
;;
# tools
clang|clangd|clang-*)
;;
# static libraries
clang*|findAllSymbols)
continue
;;
# conditional to USE=doc
docs-clang-html|docs-clang-tools-html)
use doc || continue
;;
esac
all_targets+=( "${l}" )
fi
done < <(${NINJA} -t targets all)
while read -r l; do
my_targets+=( "${l}" )
done < <(get_distribution_components $"\n")
local add=() remove=()
for l in "${all_targets[@]}"; do
if ! has "${l}" "${my_targets[@]}"; then
add+=( "${l}" )
fi
done
for l in "${my_targets[@]}"; do
if ! has "${l}" "${all_targets[@]}"; then
remove+=( "${l}" )
fi
done
if [[ ${#add[@]} -gt 0 || ${#remove[@]} -gt 0 ]]; then
eqawarn "get_distribution_components() is outdated!"
eqawarn " Add: ${add[*]}"
eqawarn "Remove: ${remove[*]}"
fi
cd - >/dev/null || die
fi
}
get_distribution_components() {
local sep=${1-;}
local out=(
# common stuff
clang-cmake-exports
clang-headers
clang-resource-headers
libclang-headers
aarch64-resource-headers
arm-common-resource-headers
arm-resource-headers
core-resource-headers
cuda-resource-headers
hexagon-resource-headers
hip-resource-headers
hlsl-resource-headers
mips-resource-headers
opencl-resource-headers
openmp-resource-headers
ppc-htm-resource-headers
ppc-resource-headers
riscv-resource-headers
systemz-resource-headers
utility-resource-headers
ve-resource-headers
webassembly-resource-headers
windows-resource-headers
x86-resource-headers
# libs
clang-cpp
libclang
)
if multilib_is_native_abi; then
out+=(
# common stuff
bash-autocomplete
libclang-python-bindings
# tools
amdgpu-arch
c-index-test
clang
clang-format
clang-linker-wrapper
clang-offload-bundler
clang-offload-packager
clang-refactor
clang-repl
clang-rename
clang-scan-deps
diagtool
hmaptool
nvptx-arch
# needed for cross-compiling Clang
clang-tblgen
)
if use extra; then
out+=(
# extra tools
clang-apply-replacements
clang-change-namespace
clang-doc
clang-include-cleaner
clang-include-fixer
clang-move
clang-pseudo
clang-query
clang-reorder-fields
clang-tidy
clang-tidy-headers
clangd
find-all-symbols
modularize
pp-trace
)
fi
if llvm_are_manpages_built; then
out+=( docs-clang-man )
use extra && out+=( docs-clang-tools-man )
fi
if use doc; then
out+=( docs-clang-html )
use extra && out+=( docs-clang-tools-html )
fi
use static-analyzer && out+=(
clang-check
clang-extdef-mapping
scan-build
scan-build-py
scan-view
)
fi
printf "%s${sep}" "${out[@]}"
}
multilib_src_configure() {
local mycmakeargs=(
-DDEFAULT_SYSROOT=$(usex prefix-guest "" "${EPREFIX}")
-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
-DCMAKE_INSTALL_MANDIR="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/share/man"
-DCLANG_CONFIG_FILE_SYSTEM_DIR="${EPREFIX}/etc/clang"
# relative to bindir
-DCLANG_RESOURCE_DIR="../../../../lib/clang/${LLVM_MAJOR}"
-DBUILD_SHARED_LIBS=OFF
-DCLANG_LINK_CLANG_DYLIB=ON
-DLLVM_DISTRIBUTION_COMPONENTS=$(get_distribution_components)
-DCLANG_INCLUDE_TESTS=$(usex test)
-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
# these are not propagated reliably, so redefine them
-DLLVM_ENABLE_EH=ON
-DLLVM_ENABLE_RTTI=ON
# libgomp support fails to find headers without explicit -I
# furthermore, it provides only syntax checking
-DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
# disable using CUDA to autodetect GPU, just build for all
-DCMAKE_DISABLE_FIND_PACKAGE_CUDAToolkit=ON
# disable linking to HSA to avoid automagic dep,
# load it dynamically instead
-DCMAKE_DISABLE_FIND_PACKAGE_hsa-runtime64=ON
-DCLANG_DEFAULT_PIE_ON_LINUX=$(usex pie)
-DCLANG_ENABLE_LIBXML2=$(usex xml)
-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
# TODO: CLANG_ENABLE_HLSL?
-DPython3_EXECUTABLE="${PYTHON}"
)
if ! use elibc_musl; then
mycmakeargs+=(
-DPPC_LINUX_DEFAULT_IEEELONGDOUBLE=$(usex ieee-long-double)
)
fi
use test && mycmakeargs+=(
-DLLVM_BUILD_TESTS=ON
-DLLVM_LIT_ARGS="$(get_lit_flags)"
)
if multilib_is_native_abi; then
local build_docs=OFF
if llvm_are_manpages_built; then
build_docs=ON
mycmakeargs+=(
-DLLVM_BUILD_DOCS=ON
-DLLVM_ENABLE_SPHINX=ON
-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
-DSPHINX_WARNINGS_AS_ERRORS=OFF
)
if use extra; then
mycmakeargs+=(
-DCLANG-TOOLS_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/tools-extra"
)
fi
fi
mycmakeargs+=(
-DCLANG_INCLUDE_DOCS=${build_docs}
)
fi
if multilib_native_use extra; then
mycmakeargs+=(
-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_SOURCE_DIR="${WORKDIR}"/clang-tools-extra
-DCLANG_TOOLS_EXTRA_INCLUDE_DOCS=${build_docs}
)
else
mycmakeargs+=(
-DLLVM_TOOL_CLANG_TOOLS_EXTRA_BUILD=OFF
)
fi
if [[ -n ${EPREFIX} ]]; then
mycmakeargs+=(
-DGCC_INSTALL_PREFIX="${EPREFIX}/usr"
)
fi
if tc-is-cross-compiler; then
has_version -b sys-devel/clang:${LLVM_MAJOR} ||
die "sys-devel/clang:${LLVM_MAJOR} is required on the build host."
local tools_bin=${BROOT}/usr/lib/llvm/${LLVM_MAJOR}/bin
mycmakeargs+=(
-DLLVM_TOOLS_BINARY_DIR="${tools_bin}"
-DCLANG_TABLEGEN="${tools_bin}"/clang-tblgen
)
fi
# LLVM can have very high memory consumption while linking,
# exhausting the limit on 32-bit linker executable
use x86 && local -x LDFLAGS="${LDFLAGS} -Wl,--no-keep-memory"
# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
cmake_src_configure
multilib_is_native_abi && check_distribution_components
}
multilib_src_compile() {
cmake_build distribution
}
multilib_src_test() {
# respect TMPDIR!
local -x LIT_PRESERVES_TMP=1
local test_targets=( check-clang )
if multilib_native_use extra; then
test_targets+=(
check-clang-tools
check-clangd
)
fi
cmake_build "${test_targets[@]}"
}
src_install() {
MULTILIB_WRAPPED_HEADERS=(
/usr/include/clang/Config/config.h
)
multilib-minimal_src_install
# Move runtime headers to /usr/lib/clang, where they belong
mv "${ED}"/usr/include/clangrt "${ED}"/usr/lib/clang || die
# move (remaining) wrapped headers back
if use extra; then
mv "${T}"/clang-tidy "${ED}"/usr/include/ || die
fi
mv "${ED}"/usr/include "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include || die
# Apply CHOST and version suffix to clang tools
local clang_tools=( clang clang++ clang-cl clang-cpp )
local abi i
# cmake gives us:
# - clang-X
# - clang -> clang-X
# - clang++, clang-cl, clang-cpp -> clang
# we want to have:
# - clang-X
# - clang++-X, clang-cl-X, clang-cpp-X -> clang-X
# - clang, clang++, clang-cl, clang-cpp -> clang*-X
# also in CHOST variant
for i in "${clang_tools[@]:1}"; do
rm "${ED}/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}" || die
dosym "clang-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}-${LLVM_MAJOR}"
dosym "${i}-${LLVM_MAJOR}" "/usr/lib/llvm/${LLVM_MAJOR}/bin/${i}"
done
# now create target symlinks for all supported ABIs
for abi in $(get_all_abis); do
local abi_chost=$(get_abi_CHOST "${abi}")
for i in "${clang_tools[@]}"; do
dosym "${i}-${LLVM_MAJOR}" \
"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}-${LLVM_MAJOR}"
dosym "${abi_chost}-${i}-${LLVM_MAJOR}" \
"/usr/lib/llvm/${LLVM_MAJOR}/bin/${abi_chost}-${i}"
done
done
}
multilib_src_install() {
DESTDIR=${D} cmake_build install-distribution
# move headers to /usr/include for wrapping & ABI mismatch checks
# (also drop the version suffix from runtime headers)
rm -rf "${ED}"/usr/include || die
mv "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/include "${ED}"/usr/include || die
mv "${ED}"/usr/lib/clang "${ED}"/usr/include/clangrt || die
if multilib_native_use extra; then
# don't wrap clang-tidy headers, the list is too long
# (they're fine for non-native ABI but enabling the targets is problematic)
mv "${ED}"/usr/include/clang-tidy "${T}/" || die
fi
}
multilib_src_install_all() {
python_fix_shebang "${ED}"
if use static-analyzer; then
python_optimize "${ED}"/usr/lib/llvm/${LLVM_MAJOR}/share/scan-view
fi
docompress "/usr/lib/llvm/${LLVM_MAJOR}/share/man"
llvm_install_manpages
# match 'html' non-compression
use doc && docompress -x "/usr/share/doc/${PF}/tools-extra"
# +x for some reason; TODO: investigate
use static-analyzer && fperms a-x "/usr/lib/llvm/${LLVM_MAJOR}/share/man/man1/scan-build.1"
}
pkg_postinst() {
if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
eselect compiler-shadow update all
fi
elog "You can find additional utility scripts in:"
elog " ${EROOT}/usr/lib/llvm/${LLVM_MAJOR}/share/clang"
if use extra; then
elog "Some of them are vim integration scripts (with instructions inside)."
elog "The run-clang-tidy.py script requires the following additional package:"
elog " dev-python/pyyaml"
fi
}
pkg_postrm() {
if [[ -z ${ROOT} && -f ${EPREFIX}/usr/share/eselect/modules/compiler-shadow.eselect ]] ; then
eselect compiler-shadow clean all
fi
}
|