sys-devel/clang-common: Add 17.0.0_pre20230705 snapshot

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

2 files changed, 191 insertions, 0 deletions

diff --git a/sys-devel/clang-common/Manifest b/sys-devel/clang-common/Manifest
index dac5477b548d..61837531aef7 100644
--- a/sys-devel/clang-common/Manifest
+++ b/sys-devel/clang-common/Manifest
@@ -6,4 +6,5 @@ DIST llvm-project-16.0.5.src.tar.xz 118000368 BLAKE2B 9f84e6bab450dc8d6379771afb
 DIST llvm-project-16.0.5.src.tar.xz.sig 566 BLAKE2B 4c96f294f350e0086f8504a54c3387308c60efb573c8def40aec45b1918d43e36c44bafb0823625b6cefa5d99b3aacd7823d6c92c7a64a737653d5b51839a924 SHA512 4550c7c6a1b6ea603d1499aba5aca746f3948a00e7567604f5e7dc3b215a34357bad382a7ebea1f6cd7952841cb75a0dfbe2c278a8c6fcb630a5035b3e16e869
 DIST llvm-project-16.0.6.src.tar.xz 118013488 BLAKE2B 95192d39cbd2914e5609db365965f1c00bfea6c2d653b3996bd2acef8a2b37e37f6fc8a9d2b65711ad72657e0ef52c42f733053cf65051e7822f27396c30406d SHA512 89a67ebfbbc764cc456e8825ecfa90707741f8835b1b2adffae0b227ab1fe5ca9cce75b0efaffc9ca8431cae528dc54fd838867a56a2b645344d9e82d19ab1b7
 DIST llvm-project-16.0.6.src.tar.xz.sig 566 BLAKE2B 2060cebd5ed57cb8a86a44238c43dfd4b921649298b10c3d19da308374c1e49869174294e29943c2af459fe06428264e26881d6c1288ebbc48686cc2cf467c7a SHA512 ca249262c7102e0889ec1bdc6f71a3a6f0e7e5d5fbab8abcd6fccd2871e7955eff7af5b055a76006097baf0dfaf2f5069eff3035b3107fc552abdb2481b21447
+DIST llvm-project-5ae7fde004cbc640c2f60207791ac36574e5f5c6.tar.gz 193410766 BLAKE2B 50287f1ad41a895040934f8f19fd8aa2e91065b930ab14125dbbc3977273655d11482b6229577c11a8ad2bdd854ca109449b603bbc2e30cee20e95e4fe11e8b7 SHA512 f24f7a3b0661d2d4533b24c295c114817aff22c8f1d473ffa639cee547d31502719f8e1be4f25b970d450ecb9dcaa809c0e12b1bb380774f52cda82a4769d7bc
 DIST llvm-project-d32fb5e5f51dedba495301073b9250f84ac6d8a8.tar.gz 193280254 BLAKE2B 31473bee900caa45c816a020113d7b6bf6e6e2db4848fa529bc622fbf2956487ab89b04d1624e7e1530e9aa56293361e01b9fde31912b2a08194398a11db8b63 SHA512 5799e106403a3954767afafac515112ec9f6505c02abb502e21a5d7019e1079912939803e95177d91678d2e28e07a12b33ceabb13e90696da13a3613a16f2396
diff --git a/sys-devel/clang-common/clang-common-17.0.0_pre20230705.ebuild b/sys-devel/clang-common/clang-common-17.0.0_pre20230705.ebuild
new file mode 100644
index 000000000000..51e0f70c6470
--- /dev/null
+++ b/sys-devel/clang-common/clang-common-17.0.0_pre20230705.ebuild
@@ -0,0 +1,190 @@
+# 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[static-libs] )
+		!llvm-libunwind? ( sys-libs/libunwind[static-libs] )
+	)
+	!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=$(usex default-lld lld bfd)
+	EOF
+
+	newins - gentoo-gcc-install.cfg <<-EOF
+		# This file is maintained by gcc-config.
+		# It is used to specify the selected GCC installation.
+	EOF
+
+	newins - gentoo-common.cfg <<-EOF
+		# This file contains flags common to clang, clang++ and clang-cpp.
+		@gentoo-runtimes.cfg
+		@gentoo-gcc-install.cfg
+		@gentoo-hardened.cfg
+		# bug #870001
+		-include "${EPREFIX}/usr/include/gentoo/maybe-stddefs.h"
+	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 "${EPREFIX}/usr/include/gentoo/fortify.h"
+	EOF
+
+	dodir /usr/include/gentoo
+
+	cat >> "${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
+	#  if !defined(__SANITIZE_ADDRESS__) && !__GENTOO_HAS_FEATURE(address_sanitizer) && !__GENTOO_HAS_FEATURE(memory_sanitizer)
+	#   define _FORTIFY_SOURCE ${fortify_level}
+	#  endif
+	# endif
+	# undef __GENTOO_HAS_FEATURE
+	#endif
+	EOF
+
+	if use hardened ; then
+		cat >> "${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
+}