[gentoo-commits] repo/gentoo:master commit in: llvm-core/clang-common/

["Michał Górny" <mgorny@gentoo.org>]

commit:     fc8481f042be70fe32f6f8a53e86b98720236ffc
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Wed Feb 26 18:51:09 2025 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Wed Feb 26 18:55:12 2025 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=fc8481f0

llvm-core/clang-common: Add 20.1.0_rc3

Signed-off-by: Michał Górny <mgorny <AT> gentoo.org>

 llvm-core/clang-common/Manifest                    |   2 +
 .../clang-common/clang-common-20.1.0_rc3.ebuild    | 310 +++++++++++++++++++++
 2 files changed, 312 insertions(+)

diff --git a/llvm-core/clang-common/Manifest b/llvm-core/clang-common/Manifest
index 8a453d62c389..45ff16194666 100644
--- a/llvm-core/clang-common/Manifest
+++ b/llvm-core/clang-common/Manifest
@@ -12,6 +12,8 @@ DIST llvm-project-19.1.7.src.tar.xz 141249332 BLAKE2B 1259ed7f9aca7b35e89d818bef
 DIST llvm-project-19.1.7.src.tar.xz.sig 438 BLAKE2B 4015140f4ba77de45039bdbdfbaf6f30e75705123d067ea97175d91d7a5b6a75008df01d99ae7aa16aaa3b101f3f41e38d01f04158f95a261d617b3ede0254cd SHA512 195797b06ac80a742e0ccbc03a50dc06dd2e04377d783d5474e3e72c5a75203b60292b047929312a411d22b137a239943fba414a4d136a2be14cbff978eb6bda
 DIST llvm-project-20.1.0-rc2.src.tar.xz 147160684 BLAKE2B 6adc1226f022272d78fb0ed361c190d369a2afc53bf868409fe8f4e092d5ffb9894c71870f072bb68162610782f48088468b4a49cdb1bc731d6689c791a5b5e3 SHA512 f303deaec8f25e1b122a7e85df192b6ea10c51472b78a3d14ad9d0b976a533cfbb9164aff0bc99e447e30938cf43363552c5493b4693e1f23291ea7a9b824bbb
 DIST llvm-project-20.1.0-rc2.src.tar.xz.sig 566 BLAKE2B aa91f7be228e51b0f2234bb5e0df173e3ddc90b6db4350a9008c2f8ba53220da6eef0c69778aecac3caecf918a0c54a0d910177ffe7643ad7fc5624a97262b7f SHA512 e5563a8a79b5e9ef26d62dc6d4385c1c86d12a652b4b1e7fc9ce45a2ea66e5118112746a61b439823bf99d65aea82285eabf5e07714eec77e6e5cd02feab82ce
+DIST llvm-project-20.1.0-rc3.src.tar.xz 147194560 BLAKE2B 888764927782b01e968c9ec326315375c6b1050d3852c7ebe7fbd06b3b4052307162f77a76f1e8976879178116ea909c581b8d1ee99dc7a4c5368b01d5597d23 SHA512 9de97104681de9c8039f03e94adc25fe1765280f826342fb4f616266aa0e4afe63db09a8cc3458252d8b2834e4efb2d17ed0226c62c7bb06d948ba8172ee078c
+DIST llvm-project-20.1.0-rc3.src.tar.xz.sig 566 BLAKE2B 411ad085c3ab83c1599d110d93a9279206885a01e4748b8ac015a9a94b89fe25c35eab38b213cafb7f733be03826ffc4a01eb52788e2742d44d41a487aff2e26 SHA512 53c5aaa963e883ff06ac7ec9b821dcc4476b79f5be0169667843b18cd8836e8993856a045f2aab23bc77faefc2983fd822cfb1219d5644cec67132d647c877d8
 DIST llvm-project-2cd8207b26ea4269630feba661f68554d7ae3c15.tar.gz 227261597 BLAKE2B 51ce992b651fcf08b7fd520420040803b59f1260947953325400c50bec576c418b162d8ae2d2307e70b885b1185c302a97409bcfe48cdb14b8e1384f4e2dfa9e SHA512 a41749943508ea4a18b47c4e947917b5268544e64372c0c3347f9ab8172a2c229d8b1d813d1e842be1b98aedd624524857ed3bb23fe98ad5f36e7a71581abb4b
 DIST llvm-project-581599096e8a1a89ccd3e053a1209c69a9079083.tar.gz 227830555 BLAKE2B 28a04dd5ce96716d389fe049c4b877f55d6e5cad5c77d8867dd7e3a448213ef413e4f4d7d5f77b0702b26a8eb25f53e08d90e2a5a97eaa3f89245531d9f6626d SHA512 d775aea9bf71d60673e966a689ff6b933afecab2c133a1f64a158551ba9db049221148eab5087bab0ce0ff917456b85fb4ea4d7284886326f54617d167a385a5
 DIST llvm-project-c30a7f459452d5766da244564bc1d5888346c364.tar.gz 227560986 BLAKE2B c1c833aa6d488530826d96db81ca8be2fcf842ccf5b10a65ff18269fdfa32fa2742fb0a547eb315c2a9ee383e1b6b6cce4a78136e1740e04d322c79fb6a66a86 SHA512 0b68d3462e5eac89f50cff5e64603758ab74c701ff2de88c8569dd45b7e702b5d13b26c2745615c0c355d46d13765f47e4d43e61cde735240c6f386c0090becb

diff --git a/llvm-core/clang-common/clang-common-20.1.0_rc3.ebuild b/llvm-core/clang-common/clang-common-20.1.0_rc3.ebuild
new file mode 100644
index 000000000000..1fde60b6b6de
--- /dev/null
+++ b/llvm-core/clang-common/clang-common-20.1.0_rc3.ebuild
@@ -0,0 +1,310 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org multilib
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+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
+
+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}-${tool}.cfg"
+			fi
+		done
+	done
+}
+
+doclang_cfg() {
+	local triple="${1}"
+
+	_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() {
+	newbashcomp bash-autocomplete.sh clang
+
+	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=$(usex cet full none)
+	EOF
+
+	if use kernel_Darwin; then
+		newins - gentoo-hardened-ld.cfg <<-EOF
+			# There was -Wl,-z,relro here, but it's not supported on Mac
+			# TODO: investigate whether -bind_at_load or -read_only_stubs will do the job
+		EOF
+	else
+		newins - gentoo-hardened-ld.cfg <<-EOF
+			# Some of these options are added unconditionally, regardless of
+			# USE=hardened, for parity with sys-devel/gcc.
+			-Wl,-z,relro
+			-Wl,-z,now
+		EOF
+	fi
+
+	dodir /usr/include/gentoo
+
+	cat >> "${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
+}