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llvm-core/clang-common: Add 20.1.0_rc1
Signed-off-by: Michał Górny <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,310 @@ | ||
| # Copyright 1999-2025 Gentoo Authors | ||
| # Distributed under the terms of the GNU General Public License v2 | ||
|
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| EAPI=8 | ||
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| inherit bash-completion-r1 llvm.org multilib | ||
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| DESCRIPTION="Common files shared between multiple slots of clang" | ||
| HOMEPAGE="https://llvm.org/" | ||
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| LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA" | ||
| SLOT="0" | ||
| IUSE=" | ||
| default-compiler-rt default-libcxx default-lld | ||
| bootstrap-prefix cet hardened llvm-libunwind | ||
| " | ||
|
|
||
| PDEPEND=" | ||
| default-compiler-rt? ( | ||
| llvm-core/clang-runtime:${LLVM_MAJOR}[compiler-rt] | ||
| llvm-libunwind? ( llvm-runtimes/libunwind[static-libs] ) | ||
| !llvm-libunwind? ( sys-libs/libunwind[static-libs] ) | ||
| ) | ||
| !default-compiler-rt? ( sys-devel/gcc ) | ||
| default-libcxx? ( >=llvm-runtimes/libcxx-${PV}[static-libs] ) | ||
| !default-libcxx? ( sys-devel/gcc ) | ||
| default-lld? ( >=llvm-core/lld-${PV} ) | ||
| !default-lld? ( sys-devel/binutils ) | ||
| " | ||
| IDEPEND=" | ||
| !default-compiler-rt? ( sys-devel/gcc-config ) | ||
| !default-libcxx? ( sys-devel/gcc-config ) | ||
| " | ||
|
|
||
| LLVM_COMPONENTS=( clang/utils ) | ||
| llvm.org_set_globals | ||
|
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||
| pkg_pretend() { | ||
| [[ ${CLANG_IGNORE_DEFAULT_RUNTIMES} ]] && return | ||
|
|
||
| local flag missing_flags=() | ||
| for flag in default-{compiler-rt,libcxx,lld}; do | ||
| if ! use "${flag}" && has_version "llvm-core/clang[${flag}]"; then | ||
| missing_flags+=( "${flag}" ) | ||
| fi | ||
| done | ||
|
|
||
| if [[ ${missing_flags[@]} ]]; then | ||
| eerror "It seems that you have the following flags set on llvm-core/clang:" | ||
| eerror | ||
| eerror " ${missing_flags[*]}" | ||
| eerror | ||
| eerror "The default runtimes are now set via flags on llvm-core/clang-common." | ||
| eerror "The build is being aborted to prevent breakage. Please either set" | ||
| eerror "the respective flags on this ebuild, e.g.:" | ||
| eerror | ||
| eerror " llvm-core/clang-common ${missing_flags[*]}" | ||
| eerror | ||
| eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1." | ||
| die "Mismatched defaults detected between llvm-core/clang and llvm-core/clang-common" | ||
| fi | ||
| } | ||
|
|
||
| _doclang_cfg() { | ||
| local triple="${1}" | ||
|
|
||
| local tool | ||
| for tool in ${triple}-clang{,++}; do | ||
| newins - "${tool}.cfg" <<-EOF | ||
| # This configuration file is used by ${tool} driver. | ||
| @gentoo-common.cfg | ||
| @gentoo-common-ld.cfg | ||
| EOF | ||
| if [[ ${triple} == x86_64* ]]; then | ||
| cat >> "${ED}/etc/clang/${tool}.cfg" <<-EOF || die | ||
| @gentoo-cet.cfg | ||
| EOF | ||
| fi | ||
| done | ||
|
|
||
| if use kernel_Darwin; then | ||
| cat >> "${ED}/etc/clang/${triple}-clang++.cfg" <<-EOF || die | ||
| -lc++abi | ||
| EOF | ||
| fi | ||
|
|
||
| newins - "${triple}-clang-cpp.cfg" <<-EOF | ||
| # This configuration file is used by the ${triple}-clang-cpp driver. | ||
| @gentoo-common.cfg | ||
| EOF | ||
| if [[ ${triple} == x86_64* ]]; then | ||
| cat >> "${ED}/etc/clang/${triple}-clang-cpp.cfg" <<-EOF || die | ||
| @gentoo-cet.cfg | ||
| EOF | ||
| fi | ||
|
|
||
| # Install symlinks for triples with other vendor strings since some | ||
| # programs insist on mangling the triple. | ||
| local vendor | ||
| for vendor in gentoo pc unknown; do | ||
| local vendor_triple="${triple%%-*}-${vendor}-${triple#*-*-}" | ||
| for tool in clang{,++,-cpp}; do | ||
| if [[ ! -f "${ED}/etc/clang/${vendor_triple}-${tool}.cfg" ]]; then | ||
| dosym "${triple}-${tool}.cfg" "/etc/clang/${vendor_triple}-${tool}.cfg" | ||
| fi | ||
| done | ||
| done | ||
| } | ||
|
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||
| doclang_cfg() { | ||
| local triple="${1}" | ||
|
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| _doclang_cfg ${triple} | ||
|
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||
| # 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 ${CHOST}-clang{,++,-cpp} though. | ||
| # | ||
| # To make sure the correct triples are installed, | ||
| # see Triple::getArchTypeName() in llvm/lib/TargetParser/Triple.cpp | ||
| # and compare with CHOST values in profiles. | ||
|
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||
| local abi=${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 | ||
| } | ||
|
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||
| src_install() { | ||
| newbashcomp bash-autocomplete.sh clang | ||
|
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| insinto /etc/clang | ||
| newins - gentoo-runtimes.cfg <<-EOF | ||
| # This file is initially generated by llvm-core/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-gcc-install.cfg <<-EOF | ||
| # This file is maintained by gcc-config. | ||
| # It is used to specify the selected GCC installation. | ||
| EOF | ||
|
|
||
| newins - gentoo-common.cfg <<-EOF | ||
| # This file contains flags common to clang, clang++ and clang-cpp. | ||
| @gentoo-runtimes.cfg | ||
| @gentoo-gcc-install.cfg | ||
| @gentoo-hardened.cfg | ||
| # bug #870001 | ||
| -include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h" | ||
| EOF | ||
|
|
||
| # clang-cpp does not like link args being passed to it when directly | ||
| # invoked, so use a separate configuration file. | ||
| newins - gentoo-common-ld.cfg <<-EOF | ||
| # This file contains flags common to clang and clang++ | ||
| @gentoo-hardened-ld.cfg | ||
| EOF | ||
|
|
||
| # Baseline hardening (bug #851111) | ||
| newins - gentoo-hardened.cfg <<-EOF | ||
| # Some of these options are added unconditionally, regardless of | ||
| # USE=hardened, for parity with sys-devel/gcc. | ||
| -Xarch_host -fstack-clash-protection | ||
| -Xarch_host -fstack-protector-strong | ||
| -fPIE | ||
| -include "${EPREFIX}/usr/include/gentoo/fortify.h" | ||
| EOF | ||
|
|
||
| newins - gentoo-cet.cfg <<-EOF | ||
| -Xarch_host -fcf-protection=$(usex cet full none) | ||
| EOF | ||
|
|
||
| if use kernel_Darwin; then | ||
| newins - gentoo-hardened-ld.cfg <<-EOF | ||
| # There was -Wl,-z,relro here, but it's not supported on Mac | ||
| # TODO: investigate whether -bind_at_load or -read_only_stubs will do the job | ||
| EOF | ||
| else | ||
| newins - gentoo-hardened-ld.cfg <<-EOF | ||
| # Some of these options are added unconditionally, regardless of | ||
| # USE=hardened, for parity with sys-devel/gcc. | ||
| -Wl,-z,relro | ||
| -Wl,-z,now | ||
| EOF | ||
| fi | ||
|
|
||
| dodir /usr/include/gentoo | ||
|
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||
| cat >> "${ED}/usr/include/gentoo/maybe-stddefs.h" <<-EOF || die | ||
| /* __has_include is an extension, but it's fine, because this is only | ||
| for Clang anyway. */ | ||
| #if defined __has_include && __has_include (<stdc-predef.h>) && !defined(__GLIBC__) | ||
| # include <stdc-predef.h> | ||
| #endif | ||
| EOF | ||
|
|
||
| local fortify_level=$(usex hardened 3 2) | ||
| # We have to do this because glibc's headers warn if F_S is set | ||
| # without optimization and that would at the very least be very noisy | ||
| # during builds and at worst trigger many -Werror builds. | ||
| cat >> "${ED}/usr/include/gentoo/fortify.h" <<- EOF || die | ||
| #ifdef __clang__ | ||
| # pragma clang system_header | ||
| #endif | ||
| #ifndef _FORTIFY_SOURCE | ||
| # if defined(__has_feature) | ||
| # define __GENTOO_HAS_FEATURE(x) __has_feature(x) | ||
| # else | ||
| # define __GENTOO_HAS_FEATURE(x) 0 | ||
| # endif | ||
| # | ||
| # if !defined(__OPTIMIZE__) || __OPTIMIZE__ == 0 | ||
| # elif !defined(__STDC_HOSTED__) || __STDC_HOSTED__ != 1 | ||
| # elif defined(__SANITIZE_ADDRESS__) | ||
| # elif __GENTOO_HAS_FEATURE(address_sanitizer) | ||
| # elif __GENTOO_HAS_FEATURE(hwaddress_sanitizer) | ||
| # elif __GENTOO_HAS_FEATURE(memory_sanitizer) | ||
| # elif __GENTOO_HAS_FEATURE(numerical_stability_sanitizer) | ||
| # elif __GENTOO_HAS_FEATURE(realtime_sanitizer) | ||
| # elif __GENTOO_HAS_FEATURE(thread_sanitizer) | ||
| # else | ||
| # define _FORTIFY_SOURCE ${fortify_level} | ||
| # endif | ||
| # | ||
| # undef __GENTOO_HAS_FEATURE | ||
| #endif | ||
| EOF | ||
|
|
||
| # TODO: Maybe -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_FAST for | ||
| # non-hardened? | ||
| if use hardened ; then | ||
| cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die | ||
| # Options below are conditional on USE=hardened. | ||
| -Xarch_host -D_GLIBCXX_ASSERTIONS | ||
| # Analogue to GLIBCXX_ASSERTIONS | ||
| # https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode | ||
| # https://libcxx.llvm.org/Hardening.html#using-hardened-mode | ||
| -Xarch_host -D_LIBCPP_HARDENING_MODE=_LIBCPP_HARDENING_MODE_EXTENSIVE | ||
| EOF | ||
|
|
||
| cat >> "${ED}/etc/clang/gentoo-hardened-ld.cfg" <<-EOF || die | ||
| # Options below are conditional on USE=hardened. | ||
| EOF | ||
| fi | ||
|
|
||
| # We only install config files for supported ABIs because unprefixed tools | ||
| # might be used for crosscompilation where e.g. PIE may not be supported. | ||
| # See bug #912237 and bug #901247. Just ${CHOST} won't do due to bug #912685. | ||
| local abi | ||
| for abi in $(get_all_abis); do | ||
| local abi_chost=$(get_abi_CHOST "${abi}") | ||
| doclang_cfg "${abi_chost}" | ||
| done | ||
|
|
||
| if use kernel_Darwin; then | ||
| cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die | ||
| # Gentoo Prefix on Darwin | ||
| -Wl,-search_paths_first | ||
| EOF | ||
| if use bootstrap-prefix ; then | ||
| # bootstrap-prefix is only set during stage2 of bootstrapping | ||
| # Prefix, where EPREFIX is set to EPREFIX/tmp. | ||
| # Here we need to point it at the future lib dir of the stage3's | ||
| # EPREFIX. | ||
| cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die | ||
| -Wl,-rpath,${EPREFIX}/../usr/lib | ||
| -Wl,-L,${EPREFIX}/../usr/lib | ||
| -isystem ${EPREFIX}/../usr/include | ||
| EOF | ||
| fi | ||
| # Using -Wl,-L instead of -L to trick compiler driver to put it | ||
| # after -isysroot's internal -L | ||
| cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die | ||
| -Wl,-rpath,${EPREFIX}/usr/lib | ||
| -Wl,-L,${EPREFIX}/usr/lib | ||
| -isystem ${EPREFIX}/usr/include | ||
| -isysroot ${EPREFIX}/MacOSX.sdk | ||
| EOF | ||
| fi | ||
| } | ||
|
|
||
| pkg_preinst() { | ||
| if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc | ||
| then | ||
| local gcc_path=$(gcc-config --get-lib-path 2>/dev/null) | ||
| if [[ -n ${gcc_path} ]]; then | ||
| cat >> "${ED}/etc/clang/gentoo-gcc-install.cfg" <<-EOF | ||
| --gcc-install-dir="${gcc_path%%:*}" | ||
| EOF | ||
| fi | ||
| fi | ||
| } |