[gentoo-commits] repo/gentoo:master commit in: sys-devel/clang-common/

["Michał Górny" <mgorny@gentoo.org>]

commit:     c8511cb2a060bed3e087235fa0bb2afa8ea5b110
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Sat Feb 11 07:46:14 2023 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Sat Feb 11 12:46:48 2023 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c8511cb2

sys-devel/clang-common: Add 17.0.0_pre20230211 snapshot

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

 sys-devel/clang-common/Manifest                    |   1 +
 .../clang-common-17.0.0_pre20230211.ebuild         | 168 +++++++++++++++++++++
 2 files changed, 169 insertions(+)

diff --git a/sys-devel/clang-common/Manifest b/sys-devel/clang-common/Manifest
index ad0dff67c34c..653c3c2519f7 100644
--- a/sys-devel/clang-common/Manifest
+++ b/sys-devel/clang-common/Manifest
@@ -7,3 +7,4 @@ DIST llvm-project-16.0.0rc1.src.tar.xz 118364920 BLAKE2B 449fa321722e77d1a595d0f
 DIST llvm-project-16.0.0rc1.src.tar.xz.sig 566 BLAKE2B 29a593f74b05ef6268f0b2ee5ebd810a244e7c6b27dd94f709b22bca8e6c8367f8321a6ec61f85476cd399f31519ac2a3c978014afae29490c1e70d26eb6c35f SHA512 dcca03d41ee3cc7d5b150184b03eb9f2e579603ce9cd5289360d1ca47169174afc26a85079cf096ec91e23f487f0b38bb6cd5fb7e5197530582155b16a5ce748
 DIST llvm-project-16.0.0rc2.src.tar.xz 117917640 BLAKE2B 92c6b1daaa500339403dcf530efb23e1d869c7b9cd8677a6680e57d5d087fb54182f009d58bdda714b62a5866d7fe3b10deedc1e251fffdaae513706d95325af SHA512 c68bb7f2a8004666ecc5c55e89e2ca1252b384e6240a2b7c5588b74794ffc6ce93bb4b0db394abba6436cce04a6de301e80821aeda04d7aab49efb96b6f8cf40
 DIST llvm-project-16.0.0rc2.src.tar.xz.sig 566 BLAKE2B 35b2a8edf3392e1c0e9bf7f1a5e6e18fdda3d98a2164947cebf0c19d7d7c7a459901060345745dff794cf99bea243fec5cb625ca68d7c73d31ac01f18cbaa58c SHA512 4f6d43f00c3bce36c3a005441473fe37fe2ca97df4b8dd306045bd0d8bd14406ae7068a3dea54d4535eaa37b7ccca54b3f5b6f5aef70a7dfc23ed336d4ad408c
+DIST llvm-project-22fb66eb94b643c858c2beecbcfac438a7fa29ed.tar.gz 179795537 BLAKE2B aef57ef739c52a8f8b2b327a8f6d8cce4734d9704018fb43a21468e56748e5d5b3d2d47fb4e95fd72b2af9f2e4be88839553e26fd7da08df60c5cc0f51c001d4 SHA512 9ed093ef7dac4891660aafbc5cad66bddefa796bff4dd70c792cc636268742142d82b84520ac2f5a5963521d7b9e4325440763ce0c88937f89722f07d3acd4b8

diff --git a/sys-devel/clang-common/clang-common-17.0.0_pre20230211.ebuild b/sys-devel/clang-common/clang-common-17.0.0_pre20230211.ebuild
new file mode 100644
index 000000000000..be17e87b775a
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-17.0.0_pre20230211.ebuild
@@ -0,0 +1,168 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit bash-completion-r1 llvm.org
+
+DESCRIPTION="Common files shared between multiple slots of clang"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
+SLOT="0"
+KEYWORDS=""
+IUSE="
+	default-compiler-rt default-libcxx default-lld llvm-libunwind
+	hardened stricter
+"
+
+PDEPEND="
+	sys-devel/clang:*
+	default-compiler-rt? (
+		sys-devel/clang-runtime[compiler-rt]
+		llvm-libunwind? ( sys-libs/llvm-libunwind )
+		!llvm-libunwind? ( sys-libs/libunwind )
+	)
+	!default-compiler-rt? ( sys-devel/gcc )
+	default-libcxx? ( >=sys-libs/libcxx-${PV} )
+	!default-libcxx? ( sys-devel/gcc )
+	default-lld? ( sys-devel/lld )
+	!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 "sys-devel/clang[${flag}]"; then
+			missing_flags+=( "${flag}" )
+		fi
+	done
+
+	if [[ ${missing_flags[@]} ]]; then
+		eerror "It seems that you have the following flags set on sys-devel/clang:"
+		eerror
+		eerror "  ${missing_flags[*]}"
+		eerror
+		eerror "The default runtimes are now set via flags on sys-devel/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 "  sys-devel/clang-common ${missing_flags[*]}"
+		eerror
+		eerror "or build with CLANG_IGNORE_DEFAULT_RUNTIMES=1."
+		die "Mismatched defaults detected between sys-devel/clang and sys-devel/clang-common"
+	fi
+}
+
+src_install() {
+	newbashcomp bash-autocomplete.sh clang
+
+	insinto /etc/clang
+	newins - gentoo-runtimes.cfg <<-EOF
+		# This file is initially generated by sys-devel/clang-runtime.
+		# It is used to control the default runtimes using by clang.
+
+		--rtlib=$(usex default-compiler-rt compiler-rt libgcc)
+		--unwindlib=$(usex default-compiler-rt libunwind libgcc)
+		--stdlib=$(usex default-libcxx libc++ libstdc++)
+		-fuse-ld=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+	EOF
+
+	# Baseline hardening (bug #851111)
+	newins - gentoo-hardened.cfg <<-EOF
+		# Some of these options are added unconditionally, regardless of
+		# USE=hardened, for parity with sys-devel/gcc.
+		-fstack-clash-protection
+		-fstack-protector-strong
+		-fPIE
+		-include "${EPREFIX}/usr/include/gentoo/fortify.h"
+	EOF
+
+	dodir /usr/include/gentoo
+
+	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
+		#ifndef _FORTIFY_SOURCE
+			#if defined(__OPTIMIZE__) && __OPTIMIZE__ > 0
+				#define _FORTIFY_SOURCE ${fortify_level}
+			#endif
+		#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${ED}/etc/clang/gentoo-hardened.cfg" <<-EOF || die
+			# Options below are conditional on USE=hardened.
+			-D_GLIBCXX_ASSERTIONS
+
+			# Analogue to GLIBCXX_ASSERTIONS
+			# https://libcxx.llvm.org/UsingLibcxx.html#assertions-mode
+			-D_LIBCPP_ENABLE_ASSERTIONS=1
+		EOF
+	fi
+
+	if use stricter; then
+		newins - gentoo-stricter.cfg <<-EOF
+			# This file increases the strictness of older clang versions
+			# to match the newest upstream version.
+
+			# clang-16 defaults
+			-Werror=implicit-function-declaration
+			-Werror=implicit-int
+			-Werror=incompatible-function-pointer-types
+
+			# constructs banned by C2x
+			-Werror=deprecated-non-prototype
+
+			# deprecated but large blast radius
+			#-Werror=strict-prototypes
+		EOF
+
+		cat >> "${ED}/etc/clang/gentoo-common.cfg" <<-EOF || die
+			@gentoo-stricter.cfg
+		EOF
+	fi
+
+	local tool
+	for tool in clang{,++,-cpp}; do
+		newins - "${tool}.cfg" <<-EOF
+			# This configuration file is used by ${tool} driver.
+			@gentoo-common.cfg
+		EOF
+	done
+}
+
+pkg_preinst() {
+	if has_version -b sys-devel/gcc-config && has_version sys-devel/gcc
+	then
+		local gcc_path=$(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
+}