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|
# Copyright 1999-2025 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit multilib multilib-build
DESCRIPTION="Meta-ebuild for clang runtime libraries"
HOMEPAGE="https://clang.llvm.org/"
S=${WORKDIR}
LICENSE="public-domain"
SLOT="${PV%%.*}"
KEYWORDS="amd64 arm arm64 ~loong ~mips ppc ppc64 ~riscv ~sparc x86 ~amd64-linux ~arm64-macos ~ppc-macos ~x64-macos"
IUSE="
+compiler-rt libcxx offload openmp +sanitize
default-compiler-rt default-libcxx default-lld llvm-libunwind polly
"
REQUIRED_USE="
sanitize? ( compiler-rt )
"
RDEPEND="
compiler-rt? (
~llvm-runtimes/compiler-rt-${PV}:${SLOT}[abi_x86_32(+)?,abi_x86_64(+)?]
sanitize? (
~llvm-runtimes/compiler-rt-sanitizers-${PV}:${SLOT}[abi_x86_32(+)?,abi_x86_64(+)?]
)
)
libcxx? ( >=llvm-runtimes/libcxx-${PV}[${MULTILIB_USEDEP}] )
openmp? (
>=llvm-runtimes/openmp-${PV}[${MULTILIB_USEDEP}]
offload? (
>=llvm-runtimes/offload-${PV}
)
)
llvm-core/clang-common
default-compiler-rt? (
~llvm-runtimes/compiler-rt-${PV}:${SLOT}[abi_x86_32(+)?,abi_x86_64(+)?]
llvm-libunwind? ( llvm-runtimes/libunwind[static-libs] )
!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
)
!default-compiler-rt? ( sys-devel/gcc )
default-libcxx? ( >=llvm-runtimes/libcxx-${PV}[static-libs] )
!default-libcxx? ( sys-devel/gcc )
default-lld? ( ~llvm-core/lld-${PV} )
!default-lld? ( sys-devel/binutils )
polly? ( ~llvm-core/polly-${PV} )
"
_doclang_cfg() {
local triple="${1}"
local tool
for tool in ${triple}-clang{,++,-cpp}; do
newins - "${tool}.cfg" <<-EOF
# This configuration file is used by ${tool} driver.
@../${tool}.cfg
@gentoo-plugins.cfg
@gentoo-runtimes.cfg
EOF
done
# Install symlinks for triples with other vendor strings since some
# programs insist on mangling the triple.
local vendor
for vendor in gentoo pc unknown; do
local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}"
for tool in clang{,++,-cpp}; do
if [[ ! -f "${ED}/etc/clang/${SLOT}/${vendor_triple}-${tool}.cfg" ]]; then
dosym "${triple}-${tool}.cfg" "/etc/clang/${SLOT}/${vendor_triple}-${tool}.cfg"
fi
done
done
}
doclang_cfg() {
local triple=$(get_abi_CHOST "${abi}")
_doclang_cfg ${triple}
# LLVM may have different arch names in some cases. For example in x86
# profiles the triple uses i686, but llvm will prefer i386 if invoked
# with "clang" on x86 or "clang -m32" on x86_64. The gentoo triple will
# be used if invoked through ${CHOST}-clang{,++,-cpp} though.
#
# To make sure the correct triples are installed,
# see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp
# and compare with CHOST values in profiles.
local abi=${triple%%-*}
case ${abi} in
armv4l|armv4t|armv5tel|armv6j|armv7a)
_doclang_cfg ${triple/${abi}/arm}
;;
i686)
_doclang_cfg ${triple/${abi}/i386}
;;
sparc)
_doclang_cfg ${triple/${abi}/sparcel}
;;
sparc64)
_doclang_cfg ${triple/${abi}/sparcv9}
;;
esac
}
src_install() {
insinto "/etc/clang/${SLOT}"
newins - gentoo-runtimes.cfg <<-EOF
# This file is initially generated by llvm-runtimes/clang-runtime.
# It is used to control the default runtimes using by clang.
--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
--unwindlib=$(usex default-compiler-rt libunwind libgcc)
--stdlib=$(usex default-libcxx libc++ libstdc++)
-fuse-ld=$(usex default-lld lld bfd)
EOF
newins - gentoo-plugins.cfg <<-EOF
# This file is used to load optional LLVM plugins.
EOF
if use polly; then
cat >> "${ED}/etc/clang/${SLOT}/gentoo-plugins.cfg" <<-EOF || die
-fpass-plugin=LLVMPolly.so
-fplugin=LLVMPolly.so
EOF
fi
multilib_foreach_abi doclang_cfg
}
|
