17 files changed, 967 insertions, 4 deletions
diff --git a/sys-libs/Manifest.gz b/sys-libs/Manifest.gz
index f1007631a80e..4f2fb0b3bf92 100644
--- a/sys-libs/Manifest.gz
+++ b/sys-libs/Manifest.gz
diff --git a/sys-libs/compiler-rt-sanitizers/Manifest b/sys-libs/compiler-rt-sanitizers/Manifest
index a5af279bb2e3..b3124a99949f 100644
--- a/sys-libs/compiler-rt-sanitizers/Manifest
+++ b/sys-libs/compiler-rt-sanitizers/Manifest
@@ -1,6 +1,7 @@
 DIST llvm-gentoo-patchset-13.0.1.tar.xz 6288 BLAKE2B 899222b962486e924e4f8a2b574d285531a3f87af9385ff68c81db92aa224a0cde6d4ee049b5405056bedb4b232b50e1d5840024071a4a215f6311853304c92d SHA512 b2805337f1deca626768a44c5e7ac9ed16e0c31bead1647d44a493a8123c1b8e8f1c8ceee3536bcc6fa87fdd3fcec408229f701adf30eff07e7ef9889b847b01
 DIST llvm-gentoo-patchset-14.0.6-r3.tar.xz 16904 BLAKE2B ebf67455071d6d3744cfc0491b8a33c4c63bfdbcf668565fa0718f6cdb01bced53be9d1cdf6774f6cd8427c07c0ede69503d74cf3574642a6967b38730248ebb SHA512 adc5a3212657d1defa7b720d1a7e9e91586439a34964d44b6897d21be3d208bd15c04bf20502dd7125ef8c368defaeea146eb844ca321be56eebcee52be606a9
 DIST llvm-gentoo-patchset-15.0.3.tar.xz 17480 BLAKE2B d540b044ad0a0505ebf69f732c71fbce281cfc13ee599ba1289238b673a4ba9a4196e80d63fec99db82e55bf6f036fbb9ca0ba489169c2a732f0d1aa2e96ae5a SHA512 f877d5be3e38d64cccc2c8a47287562a42d07f84c7d1b466ae2161aed3f2797bebedaf1118623ae3ded2b47d6abc0ca29ba7a387c07b6097389e715a50cc3816
+DIST llvm-gentoo-patchset-15.0.4.tar.xz 16972 BLAKE2B 39cf8a7112d05e50bab8fd54b7559b5bbb4698d9c1adf97f9b4ef93b37d1c342a1e6fd0e85633369f049c9cbf930b50debb2e476c9a348c53943378a0f77d892 SHA512 a99a31dd6db384a3a896d101e148acb028c837bbc9c4b0239606fd6ef0f365312721eb6b209747024c264c2a9dcf81ee7f1cd1a9f372a7ac741a2456d8356e62
 DIST llvm-gentoo-patchset-16.0.0_pre20221023.tar.xz 5876 BLAKE2B 496f2db3dd9b4c8d3a87bb098f0c995124c594a24095abc351ba3f13652ff2ee7a988dfb49652ab7780a5107f16509f56531375ab46f330797b0df562b6541d8 SHA512 518aca413537ce2e1aee8252692bc008e520c94fccc6c1b4a106decd4042cf21bbae95e3520a0c76cb7be81ad7a6a705734117ecaa254725dbc1f597f8ec6172
 DIST llvm-gentoo-patchset-9999-1.tar.xz 4032 BLAKE2B b9413484dafed8ae0c68c2c164b45fd07bb8d5d0898f03abe118fd2120ffcb1fb6c949de9649a97c2e8105f24b9d131a725c67c0a502ca4d4d192c1a0d65f49d SHA512 e64449eeaf756c5bd945109937b84ba4bd8a015222bd792d39cf3947871e87571a4ca57814790e51544cb05ad4c2d1f044e818e4caaac7c2e2a02cb1aa290fcc
 DIST llvm-project-14.0.6.src.tar.xz 105618228 BLAKE2B ee67c5407df8cef493b9c0004f15e428f22a536a17e5f4e3eb29a003b8a8ec0abe0fa3e072591161d5f30ef7d8867c1ce34d1b341ad858e93c00263499941a99 SHA512 6fc6eeb60fac698702d1aac495fc0161eb7216a1f8db2020af8fccec5837831f7cc20dc2a169bf4f0b5f520748280b4a86621f3697d622aa58faaa45dbfaad13
@@ -8,12 +9,15 @@ DIST llvm-project-14.0.6.src.tar.xz.sig 566 BLAKE2B cb658ad43d8ab6c43a5773aedadf
 DIST llvm-project-14f996dca8a2b5b17d6917528bfd9ee71ba6192a.tar.gz 169054148 BLAKE2B a23af6658a6ea8a7cb4272faef151937da229e39383ec068d7ef81e72a25d2a46dc2a86255a7f1148b7385b339d1c17e62f627df834d8eccc39be8921575f88d SHA512 e719d296016e7af718d022424c337a5df8d7124fdb49b9f219ab2a5dc592e6a59f6c09064775ea9349bcf4eed9d72214abb648de649ab872174c35635c945c04
 DIST llvm-project-15.0.3.src.tar.xz 112069972 BLAKE2B 3d29bab890467ba87fedcc4e76522f444e63e3dfbe546793f8e67821bcd403bad460ea176254c9e0b72d60ea56b8480e498a7f610477c1108732d178804c26cd SHA512 d378d417f01c56534f301cfe6cb4958d811c04ae22acaacc917e7e5f0380859d40ce19dffb265d046b70fff95dbc2e759f492e4d5af0ade52f21ebaa8da65856
 DIST llvm-project-15.0.3.src.tar.xz.sig 438 BLAKE2B e7e0614e144eb878f694c12e97cf42ff8476e47cb55e8f259eb2ec52e303463ad753771271512e89baf0137c1382b11cfa028c85324174ebcd054a124000f537 SHA512 41229bebdb0c2df9a5e3a4d6f02d39fac7dc91f21895a659523beab4fa3ef99ff06eff5e4386221369b6e2b6f8fe974d67b7d8496d5911ce484d09ae0db8b916
+DIST llvm-project-15.0.4.src.tar.xz 110936424 BLAKE2B a02b76ad161e352b4d3d84baffdada9c6a0e704de7a2c4017df4d4d05a9e9d02113791cd7d91c3edfa1f5bcb7ab95e1772d60f7061514928c6828600f41a8322 SHA512 9d5b664dd77c08130601636f9d6c006b257f369470ce823aa56d06698a9f0edfec42f2c90da934b9ad52c4d7960d9a024ea46dc9640275be6d191b1ba9869459
+DIST llvm-project-15.0.4.src.tar.xz.sig 566 BLAKE2B f1a7be65fcce932dc125ae2b498f68a14e68dad0d7a1e031343c52c5dafb7b123e346f3efa50a7693584361abf01efe9401b1b5781dee6b92dc1045e538e9b7b SHA512 35899ffbd13fc44cade54246a423450571cb4b62b8d706864daa3eef2377c48e24ef3113218e39e29de995b7f7fa307f9187552766576c9050fd924beb517f6e
 DIST llvm-project-b34ea582774c057d9bf5591174d683fd3d8aa02b.tar.gz 169735900 BLAKE2B d3a82a07f855b038071fc8eb3f41a88b4c220a577219985ecddeb9a535ea8b159dbad575699997d90a49db74c074b5f4354ad707e91d6934daaa7319e0d8ee9b SHA512 3f5525c7d893bdac701cff4cf82dafc31608920d788d9b7401654f320b2432528cf4ae8ef013182807b3dc0c5b758c71f1efeedb672dd47fdb8aa6f434dfb583
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 EBUILD compiler-rt-sanitizers-13.0.1.ebuild 6369 BLAKE2B 4e8a715cd19dd39087fe7d6cad9e30a7e130c69bde12ea382fc748cc152099607c23b75915c644785820ded954eaba31779f7c58b63a71255f9c6b610afcee7d SHA512 f5a680a5de09feecde1a3038ab185cc3b321eb2dc15b5841cd58863323fd6da727307c44127d2af5077ce2b17744ee5d3f8a17dd3bceea71b1dec2a13555dd66
 EBUILD compiler-rt-sanitizers-14.0.6.ebuild 6381 BLAKE2B 010ce621c56c1568eaddeb6f4af6e680f2596106768e3b40bffd3c221df20b565c565793ff14a46b2a96b080a696a9217be0f547c2e85430e9031bd86adc2b90 SHA512 d68b96a7458c8b0d1946523a7c1b20e413de38b7f53bd87b8729103935cdb9ad8fc38863138ba36ffc8da57e0ddcf591c7deeb23fba0d76003adea978b262e37
 EBUILD compiler-rt-sanitizers-15.0.3.ebuild 6434 BLAKE2B 20b7038e3b41c111f9c59ffb7db0d0c257b7c3f038c86c0e112b68d98ff58bf391cddf3c9f87070da010e8a39538b5814051883b9264eeaaa3e312bfa12693bc SHA512 01ad7c3ec267524fd2e597e1c0bcfba29e9689da745ea8beee816e2baf34a75f83c5fbad1f0069602ff2c2ea116c10fd16194be2d88b1d01cefbdf494e6ec0b9
 EBUILD compiler-rt-sanitizers-15.0.4.9999.ebuild 6363 BLAKE2B 640625391bc73444ed357c25028b641351e5e4f2661271e2d762a9d0a8bbf70a916018c82ddabb25f95679121eea1f35726e011f12d99bb88f1aa6aafef9f5ba SHA512 0c9b3e50c61cb6129fcc20e2fc08f7d32fd2ee180d2bad3e6ed9c7b71819320af9c74457332afac8c14b476d18b47ce7a353813e7bb29e0a568771d314f9c46a
+EBUILD compiler-rt-sanitizers-15.0.4.ebuild 6438 BLAKE2B 365a74be34dd43bb83e1eb3be7e643899baea439b56fca5b497ca3e92e001343de9a03d592b956c279d4994c805a5d975601f5f7750c8d099e2d446ed7e8b2eb SHA512 7a3836f239bf8053a07b38e112056506e3e3da363874fcb70d7a74bc72bea6a0298f08e97f3a73b5d3c1c4af57fdb692567fdff7775e5bcdff01eabfd2f962cb
 EBUILD compiler-rt-sanitizers-16.0.0.9999.ebuild 6322 BLAKE2B a6c3057587f87750a2ef204d1504ef86e579bb1c8eccbb366563a4c5899ee9357ed211affe9190c44bfbe397ee54dc7b05622a693acae8aa32ea2b4ef36c33be SHA512 bdf5995cf3973ccf9f5d5dd4baa1a8424fa01d9f95cf44a4c656e66bb98e81359a794b95603f29532675c5247b3f472b1c1fdb79066dfde8e7a383ab5929bf13
 EBUILD compiler-rt-sanitizers-16.0.0_pre20221016.ebuild 6322 BLAKE2B a6c3057587f87750a2ef204d1504ef86e579bb1c8eccbb366563a4c5899ee9357ed211affe9190c44bfbe397ee54dc7b05622a693acae8aa32ea2b4ef36c33be SHA512 bdf5995cf3973ccf9f5d5dd4baa1a8424fa01d9f95cf44a4c656e66bb98e81359a794b95603f29532675c5247b3f472b1c1fdb79066dfde8e7a383ab5929bf13
 EBUILD compiler-rt-sanitizers-16.0.0_pre20221023.ebuild 6321 BLAKE2B b80d3219c693b967278bcf2d8d42b7fb739c956406f1e1e9636c0bc98c8d8c86d6680d76b544d8f950024fa70780a4d6fbc72fc2bb20c6bc191b60ea1ed5d02e SHA512 fb01af84d6d60894627aa77fc484552f3ce1ed7f32d816303923708a023f80dfba724d13463b70c5b795e43ebf4d278f864011b244547e8a9905369c98cec161
diff --git a/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-15.0.4.ebuild b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-15.0.4.ebuild
new file mode 100644
index 000000000000..a890877df54a
--- /dev/null
+++ b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-15.0.4.ebuild
@@ -0,0 +1,219 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit check-reqs cmake flag-o-matic llvm llvm.org python-any-r1
+
+DESCRIPTION="Compiler runtime libraries for clang (sanitizers & xray)"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="${LLVM_VERSION}"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86 ~amd64-linux ~ppc-macos ~x64-macos"
+IUSE="+abi_x86_32 abi_x86_64 +clang debug test"
+# base targets
+IUSE+=" +libfuzzer +memprof +orc +profile +xray"
+# sanitizer targets, keep in sync with config-ix.cmake
+# NB: ubsan, scudo deliberately match two entries
+SANITIZER_FLAGS=(
+	asan dfsan lsan msan hwasan tsan ubsan safestack cfi scudo
+	shadowcallstack gwp-asan
+)
+IUSE+=" ${SANITIZER_FLAGS[@]/#/+}"
+REQUIRED_USE="
+	|| ( ${SANITIZER_FLAGS[*]} libfuzzer orc profile xray )
+	test? (
+		cfi? ( ubsan )
+		gwp-asan? ( scudo )
+	)
+"
+RESTRICT="
+	!clang? ( test )
+	!test? ( test )
+"
+
+DEPEND="
+	sys-devel/llvm:${LLVM_MAJOR}
+	virtual/libcrypt[abi_x86_32(-)?,abi_x86_64(-)?]
+"
+BDEPEND="
+	>=dev-util/cmake-3.16
+	clang? ( sys-devel/clang )
+	elibc_glibc? ( net-libs/libtirpc )
+	test? (
+		!!<sys-apps/sandbox-2.13
+		$(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]")
+		=sys-devel/clang-${LLVM_VERSION}*:${LLVM_MAJOR}
+		sys-libs/compiler-rt:${LLVM_VERSION}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+"
+
+LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake )
+LLVM_TEST_COMPONENTS=( llvm/lib/Testing/Support llvm/utils/unittest )
+LLVM_PATCHSET=${PV/_/-}
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version ">=dev-python/lit-15[${PYTHON_USEDEP}]"
+}
+
+check_space() {
+	if use test; then
+		local CHECKREQS_DISK_BUILD=11G
+		check-reqs_pkg_pretend
+	fi
+}
+
+pkg_pretend() {
+	check_space
+}
+
+pkg_setup() {
+	check_space
+	LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	sed -i -e 's:-Werror::' lib/tsan/go/buildgo.sh || die
+
+	local flag
+	for flag in "${SANITIZER_FLAGS[@]}"; do
+		if ! use "${flag}"; then
+			local cmake_flag=${flag/-/_}
+			sed -i -e "/COMPILER_RT_HAS_${cmake_flag^^}/s:TRUE:FALSE:" \
+				cmake/config-ix.cmake || die
+		fi
+	done
+
+	# TODO: fix these tests to be skipped upstream
+	if use asan && ! use profile; then
+		rm test/asan/TestCases/asan_and_llvm_coverage_test.cpp || die
+	fi
+	if use ubsan && ! use cfi; then
+		> test/cfi/CMakeLists.txt || die
+	fi
+
+	llvm.org_src_prepare
+}
+
+src_configure() {
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+
+	# pre-set since we need to pass it to cmake
+	BUILD_DIR=${WORKDIR}/compiler-rt_build
+
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	local flag want_sanitizer=OFF
+	for flag in "${SANITIZER_FLAGS[@]}"; do
+		if use "${flag}"; then
+			want_sanitizer=ON
+			break
+		fi
+	done
+
+	local mycmakeargs=(
+		-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${LLVM_VERSION}"
+		# use a build dir structure consistent with install
+		# this makes it possible to easily deploy test-friendly clang
+		-DCOMPILER_RT_OUTPUT_DIR="${BUILD_DIR}/lib/clang/${LLVM_VERSION}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		# builtins & crt installed by sys-libs/compiler-rt
+		-DCOMPILER_RT_BUILD_BUILTINS=OFF
+		-DCOMPILER_RT_BUILD_CRT=OFF
+		-DCOMPILER_RT_BUILD_LIBFUZZER=$(usex libfuzzer)
+		-DCOMPILER_RT_BUILD_MEMPROF=$(usex memprof)
+		-DCOMPILER_RT_BUILD_ORC=$(usex orc)
+		-DCOMPILER_RT_BUILD_PROFILE=$(usex profile)
+		-DCOMPILER_RT_BUILD_SANITIZERS="${want_sanitizer}"
+		-DCOMPILER_RT_BUILD_XRAY=$(usex xray)
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+	)
+
+	if use amd64; then
+		mycmakeargs+=(
+			-DCAN_TARGET_i386=$(usex abi_x86_32)
+			-DCAN_TARGET_x86_64=$(usex abi_x86_64)
+		)
+	fi
+
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+
+			# they are created during src_test()
+			-DCOMPILER_RT_TEST_COMPILER="${BUILD_DIR}/lib/llvm/${LLVM_MAJOR}/bin/clang"
+			-DCOMPILER_RT_TEST_CXX_COMPILER="${BUILD_DIR}/lib/llvm/${LLVM_MAJOR}/bin/clang++"
+		)
+
+		# same flags are passed for build & tests, so we need to strip
+		# them down to a subset supported by clang
+		CC=${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang \
+		CXX=${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang++ \
+		strip-unsupported-flags
+	fi
+
+	if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
+		mycmakeargs+=(
+			# setting -isysroot is disabled with compiler-rt-prefix-paths.patch
+			# this allows adding arm64 support using SDK in EPREFIX
+			-DDARWIN_macosx_CACHED_SYSROOT="${EPREFIX}/MacOSX.sdk"
+			# Set version based on the SDK in EPREFIX
+			# This disables i386 for SDK >= 10.15
+			# Will error if has_use tsan and SDK < 10.12
+			-DDARWIN_macosx_OVERRIDE_SDK_VERSION="$(realpath ${EPREFIX}/MacOSX.sdk | sed -e 's/.*MacOSX\(.*\)\.sdk/\1/')"
+			# Use our libtool instead of looking it up with xcrun
+			-DCMAKE_LIBTOOL="${EPREFIX}/usr/bin/${CHOST}-libtool"
+		)
+	fi
+
+	cmake_src_configure
+
+	if use test; then
+		local sys_dir=( "${EPREFIX}"/usr/lib/clang/${LLVM_VERSION}/lib/* )
+		[[ -e ${sys_dir} ]] || die "Unable to find ${sys_dir}"
+		[[ ${#sys_dir[@]} -eq 1 ]] || die "Non-deterministic compiler-rt install: ${sys_dir[*]}"
+
+		# copy clang over since resource_dir is located relatively to binary
+		# therefore, we can put our new libraries in it
+		mkdir -p "${BUILD_DIR}"/lib/{llvm/${LLVM_MAJOR}/{bin,$(get_libdir)},clang/${LLVM_VERSION}/include} || die
+		cp "${EPREFIX}"/usr/lib/llvm/${LLVM_MAJOR}/bin/clang{,++} \
+			"${BUILD_DIR}"/lib/llvm/${LLVM_MAJOR}/bin/ || die
+		cp "${EPREFIX}"/usr/lib/clang/${LLVM_VERSION}/include/*.h \
+			"${BUILD_DIR}"/lib/clang/${LLVM_VERSION}/include/ || die
+		cp "${sys_dir}"/*builtins*.a \
+			"${BUILD_DIR}/lib/clang/${LLVM_VERSION}/lib/${sys_dir##*/}/" || die
+		# we also need LLVMgold.so for gold-based tests
+		if [[ -f ${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/LLVMgold.so ]]; then
+			ln -s "${EPREFIX}"/usr/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/LLVMgold.so \
+				"${BUILD_DIR}"/lib/llvm/${LLVM_MAJOR}/$(get_libdir)/ || die
+		fi
+	fi
+}
+
+src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+	# disable sandbox to have it stop clobbering LD_PRELOAD
+	local -x SANDBOX_ON=0
+	# wipe LD_PRELOAD to make ASAN happy
+	local -x LD_PRELOAD=
+
+	cmake_build check-all
+}
diff --git a/sys-libs/compiler-rt/Manifest b/sys-libs/compiler-rt/Manifest
index 11113029df26..32001d2a0245 100644
--- a/sys-libs/compiler-rt/Manifest
+++ b/sys-libs/compiler-rt/Manifest
@@ -1,6 +1,7 @@
 DIST llvm-gentoo-patchset-13.0.1.tar.xz 6288 BLAKE2B 899222b962486e924e4f8a2b574d285531a3f87af9385ff68c81db92aa224a0cde6d4ee049b5405056bedb4b232b50e1d5840024071a4a215f6311853304c92d SHA512 b2805337f1deca626768a44c5e7ac9ed16e0c31bead1647d44a493a8123c1b8e8f1c8ceee3536bcc6fa87fdd3fcec408229f701adf30eff07e7ef9889b847b01
 DIST llvm-gentoo-patchset-14.0.6-r2.tar.xz 16120 BLAKE2B e12e522fdb7ba505693c679cb09cc8e00e6a954df195c86c2af4dbf1b68334a405b8dcc45f2e28b5e5e0b7e9d5eb7ba907337027927371b7a3b7784ff8aae7e0 SHA512 8a5ea71c30fc0727cc855dd812bbcb6d5f51c80c98eb3d5b80258d5c5eaab1310edc9d53ae63c2ca827abec68e2912c4b69ef0da351ff883fb30545a61e1d09c
 DIST llvm-gentoo-patchset-15.0.3.tar.xz 17480 BLAKE2B d540b044ad0a0505ebf69f732c71fbce281cfc13ee599ba1289238b673a4ba9a4196e80d63fec99db82e55bf6f036fbb9ca0ba489169c2a732f0d1aa2e96ae5a SHA512 f877d5be3e38d64cccc2c8a47287562a42d07f84c7d1b466ae2161aed3f2797bebedaf1118623ae3ded2b47d6abc0ca29ba7a387c07b6097389e715a50cc3816
+DIST llvm-gentoo-patchset-15.0.4.tar.xz 16972 BLAKE2B 39cf8a7112d05e50bab8fd54b7559b5bbb4698d9c1adf97f9b4ef93b37d1c342a1e6fd0e85633369f049c9cbf930b50debb2e476c9a348c53943378a0f77d892 SHA512 a99a31dd6db384a3a896d101e148acb028c837bbc9c4b0239606fd6ef0f365312721eb6b209747024c264c2a9dcf81ee7f1cd1a9f372a7ac741a2456d8356e62
 DIST llvm-gentoo-patchset-16.0.0_pre20221023.tar.xz 5876 BLAKE2B 496f2db3dd9b4c8d3a87bb098f0c995124c594a24095abc351ba3f13652ff2ee7a988dfb49652ab7780a5107f16509f56531375ab46f330797b0df562b6541d8 SHA512 518aca413537ce2e1aee8252692bc008e520c94fccc6c1b4a106decd4042cf21bbae95e3520a0c76cb7be81ad7a6a705734117ecaa254725dbc1f597f8ec6172
 DIST llvm-gentoo-patchset-9999-1.tar.xz 4032 BLAKE2B b9413484dafed8ae0c68c2c164b45fd07bb8d5d0898f03abe118fd2120ffcb1fb6c949de9649a97c2e8105f24b9d131a725c67c0a502ca4d4d192c1a0d65f49d SHA512 e64449eeaf756c5bd945109937b84ba4bd8a015222bd792d39cf3947871e87571a4ca57814790e51544cb05ad4c2d1f044e818e4caaac7c2e2a02cb1aa290fcc
 DIST llvm-project-14.0.6.src.tar.xz 105618228 BLAKE2B ee67c5407df8cef493b9c0004f15e428f22a536a17e5f4e3eb29a003b8a8ec0abe0fa3e072591161d5f30ef7d8867c1ce34d1b341ad858e93c00263499941a99 SHA512 6fc6eeb60fac698702d1aac495fc0161eb7216a1f8db2020af8fccec5837831f7cc20dc2a169bf4f0b5f520748280b4a86621f3697d622aa58faaa45dbfaad13
@@ -8,12 +9,15 @@ DIST llvm-project-14.0.6.src.tar.xz.sig 566 BLAKE2B cb658ad43d8ab6c43a5773aedadf
 DIST llvm-project-14f996dca8a2b5b17d6917528bfd9ee71ba6192a.tar.gz 169054148 BLAKE2B a23af6658a6ea8a7cb4272faef151937da229e39383ec068d7ef81e72a25d2a46dc2a86255a7f1148b7385b339d1c17e62f627df834d8eccc39be8921575f88d SHA512 e719d296016e7af718d022424c337a5df8d7124fdb49b9f219ab2a5dc592e6a59f6c09064775ea9349bcf4eed9d72214abb648de649ab872174c35635c945c04
 DIST llvm-project-15.0.3.src.tar.xz 112069972 BLAKE2B 3d29bab890467ba87fedcc4e76522f444e63e3dfbe546793f8e67821bcd403bad460ea176254c9e0b72d60ea56b8480e498a7f610477c1108732d178804c26cd SHA512 d378d417f01c56534f301cfe6cb4958d811c04ae22acaacc917e7e5f0380859d40ce19dffb265d046b70fff95dbc2e759f492e4d5af0ade52f21ebaa8da65856
 DIST llvm-project-15.0.3.src.tar.xz.sig 438 BLAKE2B e7e0614e144eb878f694c12e97cf42ff8476e47cb55e8f259eb2ec52e303463ad753771271512e89baf0137c1382b11cfa028c85324174ebcd054a124000f537 SHA512 41229bebdb0c2df9a5e3a4d6f02d39fac7dc91f21895a659523beab4fa3ef99ff06eff5e4386221369b6e2b6f8fe974d67b7d8496d5911ce484d09ae0db8b916
+DIST llvm-project-15.0.4.src.tar.xz 110936424 BLAKE2B a02b76ad161e352b4d3d84baffdada9c6a0e704de7a2c4017df4d4d05a9e9d02113791cd7d91c3edfa1f5bcb7ab95e1772d60f7061514928c6828600f41a8322 SHA512 9d5b664dd77c08130601636f9d6c006b257f369470ce823aa56d06698a9f0edfec42f2c90da934b9ad52c4d7960d9a024ea46dc9640275be6d191b1ba9869459
+DIST llvm-project-15.0.4.src.tar.xz.sig 566 BLAKE2B f1a7be65fcce932dc125ae2b498f68a14e68dad0d7a1e031343c52c5dafb7b123e346f3efa50a7693584361abf01efe9401b1b5781dee6b92dc1045e538e9b7b SHA512 35899ffbd13fc44cade54246a423450571cb4b62b8d706864daa3eef2377c48e24ef3113218e39e29de995b7f7fa307f9187552766576c9050fd924beb517f6e
 DIST llvm-project-b34ea582774c057d9bf5591174d683fd3d8aa02b.tar.gz 169735900 BLAKE2B d3a82a07f855b038071fc8eb3f41a88b4c220a577219985ecddeb9a535ea8b159dbad575699997d90a49db74c074b5f4354ad707e91d6934daaa7319e0d8ee9b SHA512 3f5525c7d893bdac701cff4cf82dafc31608920d788d9b7401654f320b2432528cf4ae8ef013182807b3dc0c5b758c71f1efeedb672dd47fdb8aa6f434dfb583
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 EBUILD compiler-rt-13.0.1.ebuild 3880 BLAKE2B 83202517f413772d355aa49b5a3bd8b7000c86f6538da1a5ae96de5e84bc7536d0e639b530d1f504dc68b769565504434cc80d25426207b19283b9bc41df3388 SHA512 fe5329aee6c29d408c67af9e9891205fcdf313676780b948975f94ddce31b3f54e68cc041233c81b3005ff94f7685dcc09044f3634760d90e8c18c61f63651c3
 EBUILD compiler-rt-14.0.6-r1.ebuild 4247 BLAKE2B 42673c116b115622e192ae5629e27113dbdb596b7c3f785e7b0fcd40e6d8f26e177081eaa35d5746e5911c2411a62029dbeab55dbe8079b27737561ff175eed3 SHA512 e1a26e59f31edb97d5866ac83610518e81b0a301cad4b0ef917df64abfdacbe69af354860f608980332d4011095e9d5ddbb86fa77926656ee6a881d02f46ae89
 EBUILD compiler-rt-15.0.3.ebuild 4260 BLAKE2B 378e0b41ea4c03d510d5999506bed02b378d4285effe94efaa6858a471e0e4d36c045e42f099cb0ff33f28438284ab53263074dfaf0268ca3c0642cd5c9a1721 SHA512 918c86d40c279923f0efd2848afb0ea22045232b4b710d0857d126fb87c335e0dafc28e47f690141a2702d9bb9df1a58ff840befa7f4f2f48c6c3a7dc0d49fe2
 EBUILD compiler-rt-15.0.4.9999.ebuild 4189 BLAKE2B da1b3444520bbb7a83569b65d7de338678a52b2aec70d29afee47142a268fb76310419dd00d1420445d2f30d3f567cf2bfe9e89cf89261843742094d477a2ef6 SHA512 d29905eca230cdba53aa9d63d1ccb68608b4ca74c4a6c3fbcab60245685c363d93e28ea3dba67f632c85964571da5c812ab8ca6c6be2bf97d06c93c072f75153
+EBUILD compiler-rt-15.0.4.ebuild 4264 BLAKE2B 7411477bbdf896d3cd8bd112b0aaf0fc92b21813b2808474571f90eb1b2bdcd1e617b6262267c3adb90c9993c7f0e5d326aac1430440873cbb2be1644499c156 SHA512 0dd3a2e968a4698bff0d617b710046e824fc219ce33998012cdf0bb62c56e2ff159122e39c0203a042e59c5f7f693dae8ea5dcccd4115871e0bd8b54f01469e0
 EBUILD compiler-rt-16.0.0.9999.ebuild 4189 BLAKE2B da1b3444520bbb7a83569b65d7de338678a52b2aec70d29afee47142a268fb76310419dd00d1420445d2f30d3f567cf2bfe9e89cf89261843742094d477a2ef6 SHA512 d29905eca230cdba53aa9d63d1ccb68608b4ca74c4a6c3fbcab60245685c363d93e28ea3dba67f632c85964571da5c812ab8ca6c6be2bf97d06c93c072f75153
 EBUILD compiler-rt-16.0.0_pre20221016.ebuild 4189 BLAKE2B da1b3444520bbb7a83569b65d7de338678a52b2aec70d29afee47142a268fb76310419dd00d1420445d2f30d3f567cf2bfe9e89cf89261843742094d477a2ef6 SHA512 d29905eca230cdba53aa9d63d1ccb68608b4ca74c4a6c3fbcab60245685c363d93e28ea3dba67f632c85964571da5c812ab8ca6c6be2bf97d06c93c072f75153
 EBUILD compiler-rt-16.0.0_pre20221023.ebuild 4188 BLAKE2B 8e254e1281744cab6aeff22c531781dba18cb652d0a09fa81df4cf2aaf7ad9e3b94765f1da8021486fc21b61a585c413be3797c656f08ccbb2003fc6dd35deac SHA512 a71d7386e11b00f623ec1d9f73c57325c2d77c61d8bef5054e6100fca6557a4f7caffed7fea8fe449bbbc9f57b3526e05e0b8824edebcbc1b3f833d67f91695a
diff --git a/sys-libs/compiler-rt/compiler-rt-15.0.4.ebuild b/sys-libs/compiler-rt/compiler-rt-15.0.4.ebuild
new file mode 100644
index 000000000000..044c81a79eb4
--- /dev/null
+++ b/sys-libs/compiler-rt/compiler-rt-15.0.4.ebuild
@@ -0,0 +1,150 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit cmake flag-o-matic llvm llvm.org python-any-r1 toolchain-funcs
+
+DESCRIPTION="Compiler runtime library for clang (built-in part)"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="${LLVM_VERSION}"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~riscv ~x86 ~amd64-linux ~ppc-macos ~x64-macos"
+IUSE="+abi_x86_32 abi_x86_64 +clang debug test"
+RESTRICT="!test? ( test ) !clang? ( test )"
+
+DEPEND="
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	>=dev-util/cmake-3.16
+	clang? ( sys-devel/clang )
+	test? (
+		$(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]")
+		=sys-devel/clang-${LLVM_VERSION}*:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+"
+
+LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake )
+LLVM_PATCHSET=${PV/_/-}
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version ">=dev-python/lit-15[${PYTHON_USEDEP}]"
+}
+
+pkg_pretend() {
+	if ! use clang && ! tc-is-clang; then
+		ewarn "Building using a compiler other than clang may result in broken atomics"
+		ewarn "library. Enable USE=clang unless you have a very good reason not to."
+	fi
+}
+
+pkg_setup() {
+	# Darwin Prefix builds do not have llvm installed yet, so rely on
+	# bootstrap-prefix to set the appropriate path vars to LLVM instead
+	# of using llvm_pkg_setup.
+	if [[ ${CHOST} != *-darwin* ]] || has_version dev-lang/llvm; then
+		LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+test_compiler() {
+	$(tc-getCC) ${CFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c - \
+		<<<'int main() { return 0; }' &>/dev/null
+}
+
+src_configure() {
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+
+	# pre-set since we need to pass it to cmake
+	BUILD_DIR=${WORKDIR}/${P}_build
+
+	if use clang; then
+		# Only do this conditionally to allow overriding with
+		# e.g. CC=clang-13 in case of breakage
+		if ! tc-is-clang ; then
+			local -x CC=${CHOST}-clang
+			local -x CXX=${CHOST}-clang++
+		fi
+
+		strip-unsupported-flags
+	fi
+
+	if ! test_compiler; then
+		local nolib_flags=( -nodefaultlibs -lc )
+
+		if test_compiler "${nolib_flags[@]}"; then
+			local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
+			ewarn "${CC} seems to lack runtime, trying with ${nolib_flags[*]}"
+		elif test_compiler "${nolib_flags[@]}" -nostartfiles; then
+			# Avoiding -nostartfiles earlier on for bug #862540,
+			# and set available entry symbol for bug #862798.
+			nolib_flags+=( -nostartfiles -emain )
+
+			local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
+			ewarn "${CC} seems to lack runtime, trying with ${nolib_flags[*]}"
+		fi
+	fi
+
+	local mycmakeargs=(
+		-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${LLVM_VERSION}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		-DCOMPILER_RT_BUILD_LIBFUZZER=OFF
+		-DCOMPILER_RT_BUILD_MEMPROF=OFF
+		-DCOMPILER_RT_BUILD_ORC=OFF
+		-DCOMPILER_RT_BUILD_PROFILE=OFF
+		-DCOMPILER_RT_BUILD_SANITIZERS=OFF
+		-DCOMPILER_RT_BUILD_XRAY=OFF
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+	)
+
+	if use amd64; then
+		mycmakeargs+=(
+			-DCAN_TARGET_i386=$(usex abi_x86_32)
+			-DCAN_TARGET_x86_64=$(usex abi_x86_64)
+		)
+	fi
+
+	if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
+		mycmakeargs+=(
+			# setting -isysroot is disabled with compiler-rt-prefix-paths.patch
+			# this allows adding arm64 support using SDK in EPREFIX
+			-DDARWIN_macosx_CACHED_SYSROOT="${EPREFIX}/MacOSX.sdk"
+			# Set version based on the SDK in EPREFIX.
+			# This disables i386 for SDK >= 10.15
+			-DDARWIN_macosx_OVERRIDE_SDK_VERSION="$(realpath ${EPREFIX}/MacOSX.sdk | sed -e 's/.*MacOSX\(.*\)\.sdk/\1/')"
+			# Use our libtool instead of looking it up with xcrun
+			-DCMAKE_LIBTOOL="${EPREFIX}/usr/bin/${CHOST}-libtool"
+		)
+	fi
+
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+
+			-DCOMPILER_RT_TEST_COMPILER="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang"
+			-DCOMPILER_RT_TEST_CXX_COMPILER="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}/bin/clang++"
+		)
+	fi
+
+	cmake_src_configure
+}
+
+src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+
+	cmake_build check-builtins
+}
diff --git a/sys-libs/kpmcore/Manifest b/sys-libs/kpmcore/Manifest
index 63b473bdf399..9c745602543e 100644
--- a/sys-libs/kpmcore/Manifest
+++ b/sys-libs/kpmcore/Manifest
@@ -1,5 +1,5 @@
 DIST kpmcore-22.04.3.tar.xz 593904 BLAKE2B 189cff1b5157d9e9fb54e24d63f9e1a801b057d1a37fcf509dff4728ab449e17f5e546d7fab8cfccf8aac7cef2d350fc6dab929f6790b662231c6fba6ffc81b3 SHA512 aee0d724a5dafdd76289868b7f6825540f4ad9bcbcc3358efab55bb723b595b9a15adcf62619868ada6e77d9f6ea2348d943176ef06b98990b733fb8f74f376f
-DIST kpmcore-22.08.2.tar.xz 598552 BLAKE2B f763993ba5dcaaf590c05f147bc82c6300619e0cad5a40d41a51a89c8ea4b354fd446fc018e9bf0959784f33eb4cdb4525550bd188cf48a1ee09851b42a441af SHA512 ed7757370282e158944813d6e6cff9cbe80b0ea1ba0dc8c42c1ceb01edf2c81b92d0673fb1fa5856a114be4611658be97e80581ed966637e5d1edbd0e563e027
+DIST kpmcore-22.08.3.tar.xz 599692 BLAKE2B 1a866db1d14bb866c2e0579bd79211bc22d27583425ba8f715d973779eba5a571722c19d6db5613440d85f046a3303d0067b3a6ca26645dd14a0e37db713c3e4 SHA512 4b48b6fa8f6a0ede38aeacc4f91c87e51f2205be93d4fff785ed144bb9ff59e8c8cb98a4e202f11b2ed246f6955e9ecede28efb0601da5c7936a4b4ccc25457c
 EBUILD kpmcore-22.04.3.ebuild 725 BLAKE2B 6c9f120b5f2361765541be9dd275b6a75154e30c22ad7e9f14015ea40ba72820ad289a967be995dde8c8aadccf7cb6d06361a8bd0e779e0b64446758cbc29662 SHA512 6e1b27def1dc45870980d24853e23a9a8b2891f3cb616ebb6d3d5b8c595ad9aa31d59b4e5f4e560903165b3fe80fa68e374e3031c8160d95f2131b359ba3875a
-EBUILD kpmcore-22.08.2.ebuild 753 BLAKE2B d8422bcfc9889786fb244c552cb7566aedf2c54b00215ce47a56e14074734e0e8f69e13e068ca513c63fd216dd40d467f87fdb4fc2b4ac78ee77a5cb7472fc51 SHA512 b8e2f57a3857f90d0219efbf51a1122a13e1c36478f5a053452b89247b4b1b1453891e42d0a135a3803caae6c89e38178f39bf89141c40f3a6670685ed9dbbc0
+EBUILD kpmcore-22.08.3.ebuild 753 BLAKE2B d8422bcfc9889786fb244c552cb7566aedf2c54b00215ce47a56e14074734e0e8f69e13e068ca513c63fd216dd40d467f87fdb4fc2b4ac78ee77a5cb7472fc51 SHA512 b8e2f57a3857f90d0219efbf51a1122a13e1c36478f5a053452b89247b4b1b1453891e42d0a135a3803caae6c89e38178f39bf89141c40f3a6670685ed9dbbc0
 MISC metadata.xml 318 BLAKE2B 922a5e32e706b2976c5f359a14194d268d3f499398576c80ce5fad8c0fcea0fbf048de4480a80a6a1889c88b8b6c14147654a3ab4d5ffbcc258c2290da63f6d1 SHA512 614cb8dda7ad2088e5d6ef39b449bb4be0ac72cd0231c320188d76d1816dce6490c5114bb4798112c4b11d99d30a9e82ff8fcf08ffa8c049589682a5e38208f6
diff --git a/sys-libs/kpmcore/kpmcore-22.08.2.ebuild b/sys-libs/kpmcore/kpmcore-22.08.3.ebuild
index 1f318d6d4440..1f318d6d4440 100644
--- a/sys-libs/kpmcore/kpmcore-22.08.2.ebuild
+++ b/sys-libs/kpmcore/kpmcore-22.08.3.ebuild
diff --git a/sys-libs/libcap/Manifest b/sys-libs/libcap/Manifest
index 5abbc78fbd19..3a36b988cfd9 100644
--- a/sys-libs/libcap/Manifest
+++ b/sys-libs/libcap/Manifest
@@ -2,6 +2,6 @@ AUX libcap-2.62-ignore-RAISE_SETFCAP-install-failures.patch 901 BLAKE2B 8b4795bf
 DIST libcap-2.65.tar.xz 179852 BLAKE2B 9417c5c22fa2fc03df08667dca802c2e190f17af3cda86021de175bd315cbef8607cff51ee2a9c0b6cee7a09c536dbdc43c01549e0540c335966f0afaf9268c3 SHA512 de34cd7fecfe9b688ee08e56c71d4f39a3a05f6414f88577faaadfcd5111a0ae1824af3e76a5b8199131a8df6e87e47fdcb3570c364999e4626f2ab8fafb8671
 DIST libcap-2.66.tar.xz 181592 BLAKE2B e79bf10c6a3dbffe96dc97aad0bed67caa0b3805d9dcaff1e4a8a833396ee5c6da4f7f0d321b254e99a00073bc39021b9f3a4b350d93094d0df4d74889b3ca56 SHA512 ac005b622f6e065f30ce282a5c87240e7b9da75366ee537aa4835bc501b44bc242c10a4ba4dc070e2415fc7f635d1c3c4e45fbeeaf962cf7973dda82bf6377f0
 EBUILD libcap-2.65.ebuild 2246 BLAKE2B eeb0a09fd4938cada5697f5531e88178366a0f9bed2a77eb2d6571ec6478d548f47020cd61f1e780b23ddcc657673c4c38d1c24b98dbba41ecaad9b12177e98e SHA512 b958d94030b0023f655810c9db41cc05ce239d07d86da1ea1b37a5cf38ed1e48c1ba1f8ddcb59dd278db2c40d99e57a3c917fa09aa331ba944c86b08cb828fca
-EBUILD libcap-2.66.ebuild 2254 BLAKE2B 2a7bb8f1ef55c91aa400a344e32401c982b88e1efb272e120f358d04fdf73a2bab8d744a4919b8a6c2205954d9789d4910e70bd19df987572e59aaf825fea82a SHA512 59bab3761eac29d28b3bd776ec6256b745e8c65daf8c9dcbdc230d4ba2425bae7af1eead73b65c22e0eaf3969feca784192d0562f565da0c2a4cc5f92d147568
+EBUILD libcap-2.66.ebuild 2247 BLAKE2B 888339ee09e69ef23f2b22d42441604c4d9ae31922702c40daa14675b3b843221a355ef8b31c41b674032929ef8ae0d8318c9871e5796f1d701495d3c5b645c2 SHA512 c93156a7662c90249eec085b3c0633191a96aadf3855383f047cd4234dab566a89abcbeb78c695fff958d1819ca1fce80274919da9b54ed50948bc1fe509ad9f
 EBUILD libcap-9999.ebuild 2171 BLAKE2B 8f0156d46c0da997b1204aacd200d2c7b249248af2bf96488f2fd5cb41c2bfe0a5c66fd21e6fb9a42c9a2fd3655721f782f1a944d912a74dcc1475bbfbd92df2 SHA512 163e96072426881e6db427d31e89d6c2c4d2d3b9488e4f10bae1910fd898a6c263e40c6ddca8404391ae0944508779845d06170632db9dace7b42068b9cd603c
 MISC metadata.xml 438 BLAKE2B b5260cc84a3fe6b992bb6218846c738af296522d7a467337c05a6240fd07fc9d6cece779bd9fcf24a11486a70874e17acae8182647d307a31cf43e1c19c3a2d3 SHA512 fa3713dcf6b7bb2ea6d4c2fdefc05e92ae345c76a6187ebcb40dab8c4ce0148650a8301f236efcb8cf53fff25730977a385578dbaa160b800159c6d6abbf37a9
diff --git a/sys-libs/libcap/libcap-2.66.ebuild b/sys-libs/libcap/libcap-2.66.ebuild
index 8e216f0ec4fe..fcdac687bf7e 100644
--- a/sys-libs/libcap/libcap-2.66.ebuild
+++ b/sys-libs/libcap/libcap-2.66.ebuild
@@ -11,7 +11,7 @@ if [[ ${PV} == *9999 ]]; then
 else
 	SRC_URI="https://www.kernel.org/pub/linux/libs/security/linux-privs/libcap2/${P}.tar.xz"
 
-	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux"
+	KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc ~x86 ~amd64-linux ~x86-linux"
 fi
 
 DESCRIPTION="POSIX 1003.1e capabilities"
diff --git a/sys-libs/libcxx/Manifest b/sys-libs/libcxx/Manifest
index 79a944f930f2..4d1e3f66505b 100644
--- a/sys-libs/libcxx/Manifest
+++ b/sys-libs/libcxx/Manifest
@@ -5,12 +5,15 @@ DIST llvm-project-14.0.6.src.tar.xz.sig 566 BLAKE2B cb658ad43d8ab6c43a5773aedadf
 DIST llvm-project-14f996dca8a2b5b17d6917528bfd9ee71ba6192a.tar.gz 169054148 BLAKE2B a23af6658a6ea8a7cb4272faef151937da229e39383ec068d7ef81e72a25d2a46dc2a86255a7f1148b7385b339d1c17e62f627df834d8eccc39be8921575f88d SHA512 e719d296016e7af718d022424c337a5df8d7124fdb49b9f219ab2a5dc592e6a59f6c09064775ea9349bcf4eed9d72214abb648de649ab872174c35635c945c04
 DIST llvm-project-15.0.3.src.tar.xz 112069972 BLAKE2B 3d29bab890467ba87fedcc4e76522f444e63e3dfbe546793f8e67821bcd403bad460ea176254c9e0b72d60ea56b8480e498a7f610477c1108732d178804c26cd SHA512 d378d417f01c56534f301cfe6cb4958d811c04ae22acaacc917e7e5f0380859d40ce19dffb265d046b70fff95dbc2e759f492e4d5af0ade52f21ebaa8da65856
 DIST llvm-project-15.0.3.src.tar.xz.sig 438 BLAKE2B e7e0614e144eb878f694c12e97cf42ff8476e47cb55e8f259eb2ec52e303463ad753771271512e89baf0137c1382b11cfa028c85324174ebcd054a124000f537 SHA512 41229bebdb0c2df9a5e3a4d6f02d39fac7dc91f21895a659523beab4fa3ef99ff06eff5e4386221369b6e2b6f8fe974d67b7d8496d5911ce484d09ae0db8b916
+DIST llvm-project-15.0.4.src.tar.xz 110936424 BLAKE2B a02b76ad161e352b4d3d84baffdada9c6a0e704de7a2c4017df4d4d05a9e9d02113791cd7d91c3edfa1f5bcb7ab95e1772d60f7061514928c6828600f41a8322 SHA512 9d5b664dd77c08130601636f9d6c006b257f369470ce823aa56d06698a9f0edfec42f2c90da934b9ad52c4d7960d9a024ea46dc9640275be6d191b1ba9869459
+DIST llvm-project-15.0.4.src.tar.xz.sig 566 BLAKE2B f1a7be65fcce932dc125ae2b498f68a14e68dad0d7a1e031343c52c5dafb7b123e346f3efa50a7693584361abf01efe9401b1b5781dee6b92dc1045e538e9b7b SHA512 35899ffbd13fc44cade54246a423450571cb4b62b8d706864daa3eef2377c48e24ef3113218e39e29de995b7f7fa307f9187552766576c9050fd924beb517f6e
 DIST llvm-project-b34ea582774c057d9bf5591174d683fd3d8aa02b.tar.gz 169735900 BLAKE2B d3a82a07f855b038071fc8eb3f41a88b4c220a577219985ecddeb9a535ea8b159dbad575699997d90a49db74c074b5f4354ad707e91d6934daaa7319e0d8ee9b SHA512 3f5525c7d893bdac701cff4cf82dafc31608920d788d9b7401654f320b2432528cf4ae8ef013182807b3dc0c5b758c71f1efeedb672dd47fdb8aa6f434dfb583
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 EBUILD libcxx-13.0.1.ebuild 6768 BLAKE2B 71b0f62e35538d718d99e3d43447f98752933868d999bf831969a6940d3a817452789c2044e9ca3bb4d5d1f0c2976fc276c4d10cb018c44e0cc6109095d9c6d6 SHA512 a12023fa135a7945e8088b34421f575cab32bb8ac53f1aeaa61bcf2a7b9fe045a6e21efba168056ef47b165ef3100e382100f910c84dee972017de6355d2e9c0
 EBUILD libcxx-14.0.6.ebuild 6948 BLAKE2B 203e04f4e2603ec0b8e3cd672ca2458c971e4ec3c1d24ea65f85db143561d349d9b7e4b4a58f7c57f5c0caa519e5a79f99f0a76c404aeba47b0bcc683adcb572 SHA512 c1a353dd558c68d439ab66e089e26993e66f1729f7879912413531bbd89318338649dccde1f84a32784de380997d2611d6b7cf86841feb47c3c0c8d67bfe28df
 EBUILD libcxx-15.0.3.ebuild 5282 BLAKE2B ba94798b5c17bc0c0ce2f738c9d6cbd910bcfd79d4ee889dfdab3f5dc83b617838c294e0bb44946f1a84f74c2a8e8c290023782483bc4295cda37504b2f9d0d3 SHA512 a34cbd572bbe5911df12a5ae25e0fc999b95b0bef35e8e52523f9ab70b54818e9a10100f0a14c277ad8fada69ae8896019be430b586b0bb3dde1c8cb3a9e1d68
 EBUILD libcxx-15.0.4.9999.ebuild 5238 BLAKE2B bf9c8df5c949f999fdcfad82deb548231c5ef16c25b55c76fcdf3e8fa2e5c3be90fd6ceb4c747fb639de46ef2d192b7317ebf435dfcff44ba9ca5956e59012cf SHA512 519779336613cd1110194d8a7768d2e8c3f286c7ad72da87937bae694f1830dcbec686e2b8afa212b29a3d3406a504fc903e09599a4dc7c99f277ee8f5193a1c
+EBUILD libcxx-15.0.4.ebuild 5286 BLAKE2B 6de2e2e79fdaa428d3b8a3aa667168cd99725c718e1ddfbd2cb4e2d07d263a6a0a5af17f57d3c91e914c2c15183592c643de4fa8fff7df6ffb3674d7f811bc9d SHA512 e17d1c1777dff3c4f7a3608ddcb6194b652cebd2f99f4a93a87041c6d2a1d58840f823c1befc7d262ec2d7f9cb5d097d0b542faddbf509cd16965ecc78a9462e
 EBUILD libcxx-16.0.0.9999.ebuild 5238 BLAKE2B bf9c8df5c949f999fdcfad82deb548231c5ef16c25b55c76fcdf3e8fa2e5c3be90fd6ceb4c747fb639de46ef2d192b7317ebf435dfcff44ba9ca5956e59012cf SHA512 519779336613cd1110194d8a7768d2e8c3f286c7ad72da87937bae694f1830dcbec686e2b8afa212b29a3d3406a504fc903e09599a4dc7c99f277ee8f5193a1c
 EBUILD libcxx-16.0.0_pre20221016.ebuild 5238 BLAKE2B bf9c8df5c949f999fdcfad82deb548231c5ef16c25b55c76fcdf3e8fa2e5c3be90fd6ceb4c747fb639de46ef2d192b7317ebf435dfcff44ba9ca5956e59012cf SHA512 519779336613cd1110194d8a7768d2e8c3f286c7ad72da87937bae694f1830dcbec686e2b8afa212b29a3d3406a504fc903e09599a4dc7c99f277ee8f5193a1c
 EBUILD libcxx-16.0.0_pre20221023.ebuild 5238 BLAKE2B bf9c8df5c949f999fdcfad82deb548231c5ef16c25b55c76fcdf3e8fa2e5c3be90fd6ceb4c747fb639de46ef2d192b7317ebf435dfcff44ba9ca5956e59012cf SHA512 519779336613cd1110194d8a7768d2e8c3f286c7ad72da87937bae694f1830dcbec686e2b8afa212b29a3d3406a504fc903e09599a4dc7c99f277ee8f5193a1c
diff --git a/sys-libs/libcxx/libcxx-15.0.4.ebuild b/sys-libs/libcxx/libcxx-15.0.4.ebuild
new file mode 100644
index 000000000000..8b5e382b8889
--- /dev/null
+++ b/sys-libs/libcxx/libcxx-15.0.4.ebuild
@@ -0,0 +1,204 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit cmake-multilib flag-o-matic llvm llvm.org python-any-r1 \
+	toolchain-funcs
+
+DESCRIPTION="New implementation of the C++ standard library, targeting C++11"
+HOMEPAGE="https://libcxx.llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~riscv ~sparc ~x86 ~x64-macos"
+IUSE="+clang +libcxxabi static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	libcxxabi? (
+		~sys-libs/libcxxabi-${PV}[static-libs?,${MULTILIB_USEDEP}]
+	)
+	!libcxxabi? ( >=sys-devel/gcc-4.7:=[cxx] )
+"
+DEPEND="
+	${RDEPEND}
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? (
+		sys-devel/clang:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		>=dev-util/cmake-3.16
+		sys-devel/gdb[python]
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)
+"
+
+LLVM_COMPONENTS=( runtimes libcxx{,abi} llvm/{cmake,utils/llvm-lit} cmake )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	# Darwin Prefix builds do not have llvm installed yet, so rely on
+	# bootstrap-prefix to set the appropriate path vars to LLVM instead
+	# of using llvm_pkg_setup.
+	if [[ ${CHOST} != *-darwin* ]] || has_version dev-lang/llvm; then
+		LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+
+	if ! use libcxxabi && ! tc-is-gcc ; then
+		eerror "To build ${PN} against libsupc++, you have to use gcc. Other"
+		eerror "compilers are not supported. Please set CC=gcc and CXX=g++"
+		eerror "and try again."
+		die
+	fi
+}
+
+test_compiler() {
+	$(tc-getCXX) ${CXXFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c++ - \
+		<<<'int main() { return 0; }' &>/dev/null
+}
+
+src_configure() {
+	# note: we need to do this before multilib kicks in since it will
+	# alter the CHOST
+	local cxxabi cxxabi_incs
+	if use libcxxabi; then
+		cxxabi=system-libcxxabi
+		cxxabi_incs="${EPREFIX}/usr/include/c++/v1"
+	else
+		local gcc_inc="${EPREFIX}/usr/lib/gcc/${CHOST}/$(gcc-fullversion)/include/g++-v$(gcc-major-version)"
+		cxxabi=libsupc++
+		cxxabi_incs="${gcc_inc};${gcc_inc}/${CHOST}"
+	fi
+
+	multilib-minimal_src_configure
+}
+
+multilib_src_configure() {
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	# link to compiler-rt
+	local use_compiler_rt=OFF
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	# bootstrap: cmake is unhappy if compiler can't link to stdlib
+	local nolib_flags=( -nodefaultlibs -lc )
+	if ! test_compiler; then
+		if test_compiler "${nolib_flags[@]}"; then
+			local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
+			ewarn "${CXX} seems to lack runtime, trying with ${nolib_flags[*]}"
+		fi
+	fi
+
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
+		-DPython3_EXECUTABLE="${PYTHON}"
+		-DLLVM_ENABLE_RUNTIMES=libcxx
+		-DLLVM_INCLUDE_TESTS=OFF
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+
+		-DLIBCXX_ENABLE_SHARED=ON
+		-DLIBCXX_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXX_CXX_ABI=${cxxabi}
+		-DLIBCXX_CXX_ABI_INCLUDE_PATHS=${cxxabi_incs}
+		# we're using our own mechanism for generating linker scripts
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+		-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		-DLIBCXX_INCLUDE_TESTS=$(usex test)
+		-DLIBCXX_USE_COMPILER_RT=${use_compiler_rt}
+	)
+
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DPython3_EXECUTABLE="${PYTHON}"
+		)
+	fi
+	cmake_src_configure
+}
+
+multilib_src_compile() {
+	cmake_src_compile
+	if [[ ${CHOST} != *-darwin* ]] ; then
+		gen_shared_ldscript
+		use static-libs && gen_static_ldscript
+	fi
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-cxx
+}
+
+multilib_src_install() {
+	cmake_src_install
+	# since we've replaced libc++.{a,so} with ldscripts, now we have to
+	# install the extra symlinks
+	if [[ ${CHOST} != *-darwin* ]] ; then
+		dolib.so lib/libc++_shared.so
+		use static-libs && dolib.a lib/libc++_static.a
+	fi
+}
+
+# Usage: deps
+gen_ldscript() {
+	local output_format
+	output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
+	[[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
+
+	cat <<-END_LDSCRIPT
+/* GNU ld script
+   Include missing dependencies
+*/
+${output_format}
+GROUP ( $@ )
+END_LDSCRIPT
+}
+
+gen_static_ldscript() {
+	# Move it first.
+	mv lib/libc++{,_static}.a || die
+	# Generate libc++.a ldscript for inclusion of its dependencies so that
+	# clang++ -stdlib=libc++ -static works out of the box.
+	local deps=(
+		libc++_static.a
+		$(usex libcxxabi libc++abi.a libsupc++.a)
+	)
+	# On Linux/glibc it does not link without libpthread or libdl. It is
+	# fine on FreeBSD.
+	use elibc_glibc && deps+=( libpthread.a libdl.a )
+
+	gen_ldscript "${deps[*]}" > lib/libc++.a || die
+}
+
+gen_shared_ldscript() {
+	# Move it first.
+	mv lib/libc++{,_shared}.so || die
+	local deps=(
+		libc++_shared.so
+		# libsupc++ doesn't have a shared version
+		$(usex libcxxabi libc++abi.so libsupc++.a)
+	)
+
+	gen_ldscript "${deps[*]}" > lib/libc++.so || die
+}
diff --git a/sys-libs/libcxxabi/Manifest b/sys-libs/libcxxabi/Manifest
index 178e468c4221..4f7816e9f284 100644
--- a/sys-libs/libcxxabi/Manifest
+++ b/sys-libs/libcxxabi/Manifest
@@ -3,12 +3,15 @@ DIST llvm-project-14.0.6.src.tar.xz.sig 566 BLAKE2B cb658ad43d8ab6c43a5773aedadf
 DIST llvm-project-14f996dca8a2b5b17d6917528bfd9ee71ba6192a.tar.gz 169054148 BLAKE2B a23af6658a6ea8a7cb4272faef151937da229e39383ec068d7ef81e72a25d2a46dc2a86255a7f1148b7385b339d1c17e62f627df834d8eccc39be8921575f88d SHA512 e719d296016e7af718d022424c337a5df8d7124fdb49b9f219ab2a5dc592e6a59f6c09064775ea9349bcf4eed9d72214abb648de649ab872174c35635c945c04
 DIST llvm-project-15.0.3.src.tar.xz 112069972 BLAKE2B 3d29bab890467ba87fedcc4e76522f444e63e3dfbe546793f8e67821bcd403bad460ea176254c9e0b72d60ea56b8480e498a7f610477c1108732d178804c26cd SHA512 d378d417f01c56534f301cfe6cb4958d811c04ae22acaacc917e7e5f0380859d40ce19dffb265d046b70fff95dbc2e759f492e4d5af0ade52f21ebaa8da65856
 DIST llvm-project-15.0.3.src.tar.xz.sig 438 BLAKE2B e7e0614e144eb878f694c12e97cf42ff8476e47cb55e8f259eb2ec52e303463ad753771271512e89baf0137c1382b11cfa028c85324174ebcd054a124000f537 SHA512 41229bebdb0c2df9a5e3a4d6f02d39fac7dc91f21895a659523beab4fa3ef99ff06eff5e4386221369b6e2b6f8fe974d67b7d8496d5911ce484d09ae0db8b916
+DIST llvm-project-15.0.4.src.tar.xz 110936424 BLAKE2B a02b76ad161e352b4d3d84baffdada9c6a0e704de7a2c4017df4d4d05a9e9d02113791cd7d91c3edfa1f5bcb7ab95e1772d60f7061514928c6828600f41a8322 SHA512 9d5b664dd77c08130601636f9d6c006b257f369470ce823aa56d06698a9f0edfec42f2c90da934b9ad52c4d7960d9a024ea46dc9640275be6d191b1ba9869459
+DIST llvm-project-15.0.4.src.tar.xz.sig 566 BLAKE2B f1a7be65fcce932dc125ae2b498f68a14e68dad0d7a1e031343c52c5dafb7b123e346f3efa50a7693584361abf01efe9401b1b5781dee6b92dc1045e538e9b7b SHA512 35899ffbd13fc44cade54246a423450571cb4b62b8d706864daa3eef2377c48e24ef3113218e39e29de995b7f7fa307f9187552766576c9050fd924beb517f6e
 DIST llvm-project-b34ea582774c057d9bf5591174d683fd3d8aa02b.tar.gz 169735900 BLAKE2B d3a82a07f855b038071fc8eb3f41a88b4c220a577219985ecddeb9a535ea8b159dbad575699997d90a49db74c074b5f4354ad707e91d6934daaa7319e0d8ee9b SHA512 3f5525c7d893bdac701cff4cf82dafc31608920d788d9b7401654f320b2432528cf4ae8ef013182807b3dc0c5b758c71f1efeedb672dd47fdb8aa6f434dfb583
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 EBUILD libcxxabi-13.0.1.ebuild 3468 BLAKE2B 0da66a538e0efab041fa5f56c31a116c9274bec95aa18f10b5759d6347e3e864922207cba0ddc6821eadad4243c247b01869d34f42e34c213f410896f5ac5b8f SHA512 2eaf47c438cae3b024eb64cecedf2643ff2ecbd35610d5cff6fb2f06847af766ff105d4923dfaf2f4d014944f2ef3ac54edd5f7c83e31d49c071ac57f56cd38f
 EBUILD libcxxabi-14.0.6.ebuild 3384 BLAKE2B c7091fc3a025d186909465ea46508b4cc22bfd5bd5156ed7b007c04e5fdb8c80565274ba085ffd5f8bbba2b9182ab3cff0e0c042346f4a04184b0cfd6e5a5d48 SHA512 92f71c9fd82a430c7bb6ecae347b6dff5739c825194731d877dc55f4be302cafeeac66cc2e24b6aa7f0a248af950305628b6ecbf2f6ffc70dce86b6723b75d27
 EBUILD libcxxabi-15.0.3.ebuild 2910 BLAKE2B ddf5ff5a0992b0df05ec935417568ad4ccdce3de2dfeca4dd0968beda0a7575f17954b8cd7b572fbd27877d5402157439c34aea8af9578aae2de6d0ca0a06fb3 SHA512 325fb17597c412284c43a7f8b84acfc6af964faa215ee96c5b7c26b3d9edd4511b37a87056c7f1c3b77ebd7b073999ed1e42df6d2d69beeb78cd61b3abda93e5
 EBUILD libcxxabi-15.0.4.9999.ebuild 2866 BLAKE2B 00dc8f0473e5a8081727c83e3fc5459dafc7c680a68f7b237be5f3c8da6cee1916748083e3baf4fda71af8b55dfecb97d7a195b35d4958b8376dc7777df328a5 SHA512 f0f14175c68e080b199d8bcb62fa1387e1b6755bd804dc342dcaf671b84d9dfe29cf8a3559acfe0c9308a73e61416944519b94839c736837fd4bea059c91ec91
+EBUILD libcxxabi-15.0.4.ebuild 2914 BLAKE2B ebfb1baccb81d321dca037a620e0b87f5203b1e1a3da68bb8ff7276e23dc435d0effbfa8b8684adf3e41d15d576c6019153ec49ae21ff158b41f4ab9e601fda0 SHA512 822f1e85e15a58fa7d096983aef9cb2b881faf276ac6f133b836c16d783cba3e9950f5976b103ce4bb0ed3c7dfd1409fd3c88bdcd81fda822e7b4a0e2b973956
 EBUILD libcxxabi-16.0.0.9999.ebuild 2866 BLAKE2B 00dc8f0473e5a8081727c83e3fc5459dafc7c680a68f7b237be5f3c8da6cee1916748083e3baf4fda71af8b55dfecb97d7a195b35d4958b8376dc7777df328a5 SHA512 f0f14175c68e080b199d8bcb62fa1387e1b6755bd804dc342dcaf671b84d9dfe29cf8a3559acfe0c9308a73e61416944519b94839c736837fd4bea059c91ec91
 EBUILD libcxxabi-16.0.0_pre20221016.ebuild 2866 BLAKE2B 00dc8f0473e5a8081727c83e3fc5459dafc7c680a68f7b237be5f3c8da6cee1916748083e3baf4fda71af8b55dfecb97d7a195b35d4958b8376dc7777df328a5 SHA512 f0f14175c68e080b199d8bcb62fa1387e1b6755bd804dc342dcaf671b84d9dfe29cf8a3559acfe0c9308a73e61416944519b94839c736837fd4bea059c91ec91
 EBUILD libcxxabi-16.0.0_pre20221023.ebuild 2866 BLAKE2B 00dc8f0473e5a8081727c83e3fc5459dafc7c680a68f7b237be5f3c8da6cee1916748083e3baf4fda71af8b55dfecb97d7a195b35d4958b8376dc7777df328a5 SHA512 f0f14175c68e080b199d8bcb62fa1387e1b6755bd804dc342dcaf671b84d9dfe29cf8a3559acfe0c9308a73e61416944519b94839c736837fd4bea059c91ec91
diff --git a/sys-libs/libcxxabi/libcxxabi-15.0.4.ebuild b/sys-libs/libcxxabi/libcxxabi-15.0.4.ebuild
new file mode 100644
index 000000000000..b97740de2fbf
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-15.0.4.ebuild
@@ -0,0 +1,116 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit cmake-multilib flag-o-matic llvm llvm.org python-any-r1 \
+	toolchain-funcs
+
+DESCRIPTION="Low level support for a standard C++ library"
+HOMEPAGE="https://libcxxabi.llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~riscv ~sparc ~x86 ~x64-macos"
+IUSE="+clang static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+# in 15.x, cxxabi.h is moving from libcxx to libcxxabi
+RDEPEND+="
+	!<sys-libs/libcxx-15
+"
+DEPEND="
+	${RDEPEND}
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? (
+		sys-devel/clang:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)
+"
+
+LLVM_COMPONENTS=( runtimes libcxx{abi,} llvm/cmake cmake )
+LLVM_TEST_COMPONENTS=( llvm/utils/llvm-lit )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	# darwin prefix builds do not have llvm installed yet, so rely on bootstrap-prefix
+	# to set the appropriate path vars to LLVM instead of using llvm_pkg_setup.
+	if [[ ${CHOST} != *-darwin* ]] || has_version dev-lang/llvm; then
+		LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	# link to compiler-rt
+	local use_compiler_rt=OFF
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	local libdir=$(get_libdir)
+	local mycmakeargs=(
+		-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
+		-DPython3_EXECUTABLE="${PYTHON}"
+		-DLLVM_ENABLE_RUNTIMES="libcxxabi;libcxx"
+		-DLLVM_INCLUDE_TESTS=OFF
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+		-DLIBCXXABI_ENABLE_SHARED=ON
+		-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
+		-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
+		-DLIBCXXABI_USE_COMPILER_RT=${use_compiler_rt}
+
+		# upstream is omitting standard search path for this
+		# probably because gcc & clang are bundling their own unwind.h
+		-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
+
+		-DLIBCXX_LIBDIR_SUFFIX=
+		-DLIBCXX_ENABLE_SHARED=ON
+		-DLIBCXX_ENABLE_STATIC=OFF
+		-DLIBCXX_CXX_ABI=libcxxabi
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+		-DLIBCXX_HAS_GCC_S_LIB=OFF
+		-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		-DLIBCXX_INCLUDE_TESTS=OFF
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DPython3_EXECUTABLE="${PYTHON}"
+		)
+	fi
+	cmake_src_configure
+}
+
+multilib_src_compile() {
+	cmake_build cxxabi
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-cxxabi
+}
+
+multilib_src_install() {
+	DESTDIR="${D}" cmake_build install-cxxabi
+}
diff --git a/sys-libs/libomp/Manifest b/sys-libs/libomp/Manifest
index 04eb44cefd8c..8b850b567092 100644
--- a/sys-libs/libomp/Manifest
+++ b/sys-libs/libomp/Manifest
@@ -5,12 +5,15 @@ DIST llvm-project-14.0.6.src.tar.xz.sig 566 BLAKE2B cb658ad43d8ab6c43a5773aedadf
 DIST llvm-project-14f996dca8a2b5b17d6917528bfd9ee71ba6192a.tar.gz 169054148 BLAKE2B a23af6658a6ea8a7cb4272faef151937da229e39383ec068d7ef81e72a25d2a46dc2a86255a7f1148b7385b339d1c17e62f627df834d8eccc39be8921575f88d SHA512 e719d296016e7af718d022424c337a5df8d7124fdb49b9f219ab2a5dc592e6a59f6c09064775ea9349bcf4eed9d72214abb648de649ab872174c35635c945c04
 DIST llvm-project-15.0.3.src.tar.xz 112069972 BLAKE2B 3d29bab890467ba87fedcc4e76522f444e63e3dfbe546793f8e67821bcd403bad460ea176254c9e0b72d60ea56b8480e498a7f610477c1108732d178804c26cd SHA512 d378d417f01c56534f301cfe6cb4958d811c04ae22acaacc917e7e5f0380859d40ce19dffb265d046b70fff95dbc2e759f492e4d5af0ade52f21ebaa8da65856
 DIST llvm-project-15.0.3.src.tar.xz.sig 438 BLAKE2B e7e0614e144eb878f694c12e97cf42ff8476e47cb55e8f259eb2ec52e303463ad753771271512e89baf0137c1382b11cfa028c85324174ebcd054a124000f537 SHA512 41229bebdb0c2df9a5e3a4d6f02d39fac7dc91f21895a659523beab4fa3ef99ff06eff5e4386221369b6e2b6f8fe974d67b7d8496d5911ce484d09ae0db8b916
+DIST llvm-project-15.0.4.src.tar.xz 110936424 BLAKE2B a02b76ad161e352b4d3d84baffdada9c6a0e704de7a2c4017df4d4d05a9e9d02113791cd7d91c3edfa1f5bcb7ab95e1772d60f7061514928c6828600f41a8322 SHA512 9d5b664dd77c08130601636f9d6c006b257f369470ce823aa56d06698a9f0edfec42f2c90da934b9ad52c4d7960d9a024ea46dc9640275be6d191b1ba9869459
+DIST llvm-project-15.0.4.src.tar.xz.sig 566 BLAKE2B f1a7be65fcce932dc125ae2b498f68a14e68dad0d7a1e031343c52c5dafb7b123e346f3efa50a7693584361abf01efe9401b1b5781dee6b92dc1045e538e9b7b SHA512 35899ffbd13fc44cade54246a423450571cb4b62b8d706864daa3eef2377c48e24ef3113218e39e29de995b7f7fa307f9187552766576c9050fd924beb517f6e
 DIST llvm-project-b34ea582774c057d9bf5591174d683fd3d8aa02b.tar.gz 169735900 BLAKE2B d3a82a07f855b038071fc8eb3f41a88b4c220a577219985ecddeb9a535ea8b159dbad575699997d90a49db74c074b5f4354ad707e91d6934daaa7319e0d8ee9b SHA512 3f5525c7d893bdac701cff4cf82dafc31608920d788d9b7401654f320b2432528cf4ae8ef013182807b3dc0c5b758c71f1efeedb672dd47fdb8aa6f434dfb583
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 EBUILD libomp-13.0.1.ebuild 3907 BLAKE2B 46ed471cb355b70f78b59faeffbcc5148d47a3b971818c831e7b155f4f0973238fdbfb5f2fa91913fef93e01beed45f42b1158af92e56cd8445c4a8157508bb7 SHA512 13f150c5223689e4d98e16cafa11e44164b177eb68d3df213582b85c5194e7f736143b49b2075f4178689efcfa8320e2b1faf34242c09dbfcda923b443d42741
 EBUILD libomp-14.0.6-r1.ebuild 3917 BLAKE2B 23460d17ef5b7e107d8be1bd1c37028d69fda2e151e7d8f7f0c6d23dc00336f5a503a4e8e692b4203f3e4219fde6f96f9d30d4c7fed0348066f8c603636cc39b SHA512 aa9e9985a1941fe5c33b998d81bfdd838dbe965d5c82e20e366d2cf7a08db24feb2f3f7633740bea45a3685049d1593df6465b8c785b9a87c197402f559b26ca
 EBUILD libomp-15.0.3.ebuild 3401 BLAKE2B 85ef1c7b12b1887ee4921847b701ac45a66ddef0c636e321db074ee802f325cd9dbd71d7eb3ea1b4ddcc6987a0a38468d52190c8d0a988ae36026670110d86ab SHA512 efa0492c98475343718680e4384b733bace746b1628a3f017786a5cf8e2b3a68837734fb9e3fd1eb0742f45fbd613236065c4c99e149a8d0e5931b66d2005b52
 EBUILD libomp-15.0.4.9999.ebuild 3339 BLAKE2B 4fb077e0f5195f1c2fef3691aba3e8b674d340df9f3d1de8c9962a03267662bcf55a43af75db6e3ab5121de6c129c7f7514c127ec27c3b940cb2fbbf619788d4 SHA512 49aa1cb488a8e428892dd3b74a82462206e9c11e139b5b9b8e2edca496279c274f81ece0dcb9e71eea43c4e6f99ca4aacd5bdc48e4595743b7f98e7a1f7ae3d9
+EBUILD libomp-15.0.4.ebuild 3405 BLAKE2B e794e2ff98eb12991f899b50750624fa08f6b20dcde51e1be56f3f2c4a0a0e70fc157079fe14147334535b7f8388a704d6b4dd858e94be1368596bd2d333698a SHA512 a89c79b76a3ca6459c50d68949ef73d20e774b54e79dc49644512c58a757a7a5afbbd2ab003302662cf7598199748a4f55afbb3a9803dbf279c3fd82b1edccc8
 EBUILD libomp-16.0.0.9999.ebuild 3444 BLAKE2B fb82f952dc3be9c2b651dc0d26552f1d5b89fbc3eeda67ed7a102a403a462d1e8c2d6d06d3fbf376fc17d4a0b5ada9dc1d1e60b468af5eeb61c597ec04c98dbe SHA512 3c5b094ac77e709b3c55e9fb4e005ec1725faa8be9abe48d1e4ac8eaa56920c5d143f61cc18997bf017c8abb0ac8121671b26dea311a5ac62eba3cd5983d57ae
 EBUILD libomp-16.0.0_pre20221016.ebuild 3444 BLAKE2B fb82f952dc3be9c2b651dc0d26552f1d5b89fbc3eeda67ed7a102a403a462d1e8c2d6d06d3fbf376fc17d4a0b5ada9dc1d1e60b468af5eeb61c597ec04c98dbe SHA512 3c5b094ac77e709b3c55e9fb4e005ec1725faa8be9abe48d1e4ac8eaa56920c5d143f61cc18997bf017c8abb0ac8121671b26dea311a5ac62eba3cd5983d57ae
 EBUILD libomp-16.0.0_pre20221023.ebuild 3444 BLAKE2B fb82f952dc3be9c2b651dc0d26552f1d5b89fbc3eeda67ed7a102a403a462d1e8c2d6d06d3fbf376fc17d4a0b5ada9dc1d1e60b468af5eeb61c597ec04c98dbe SHA512 3c5b094ac77e709b3c55e9fb4e005ec1725faa8be9abe48d1e4ac8eaa56920c5d143f61cc18997bf017c8abb0ac8121671b26dea311a5ac62eba3cd5983d57ae
diff --git a/sys-libs/libomp/libomp-15.0.4.ebuild b/sys-libs/libomp/libomp-15.0.4.ebuild
new file mode 100644
index 000000000000..b172775e1370
--- /dev/null
+++ b/sys-libs/libomp/libomp-15.0.4.ebuild
@@ -0,0 +1,131 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit flag-o-matic cmake-multilib linux-info llvm llvm.org python-any-r1
+
+DESCRIPTION="OpenMP runtime library for LLVM/clang compiler"
+HOMEPAGE="https://openmp.llvm.org"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0/${LLVM_SOABI}"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~x86 ~amd64-linux ~x64-macos"
+IUSE="
+	debug hwloc offload ompt test
+	llvm_targets_AMDGPU llvm_targets_NVPTX
+"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	hwloc? ( >=sys-apps/hwloc-2.5:0=[${MULTILIB_USEDEP}] )
+	offload? (
+		virtual/libelf:=[${MULTILIB_USEDEP}]
+		dev-libs/libffi:=[${MULTILIB_USEDEP}]
+		~sys-devel/llvm-${PV}[${MULTILIB_USEDEP}]
+	)
+"
+# tests:
+# - dev-python/lit provides the test runner
+# - sys-devel/llvm provide test utils (e.g. FileCheck)
+# - sys-devel/clang provides the compiler to run tests
+DEPEND="
+	${RDEPEND}
+"
+BDEPEND="
+	dev-lang/perl
+	offload? (
+		llvm_targets_AMDGPU? ( sys-devel/clang )
+		llvm_targets_NVPTX? ( sys-devel/clang )
+		virtual/pkgconfig
+	)
+	test? (
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+		sys-devel/clang
+	)
+"
+
+LLVM_COMPONENTS=( openmp cmake llvm/include )
+llvm.org_set_globals
+
+python_check_deps() {
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+kernel_pds_check() {
+	if use kernel_linux && kernel_is -lt 4 15 && kernel_is -ge 4 13; then
+		local CONFIG_CHECK="~!SCHED_PDS"
+		local ERROR_SCHED_PDS="\
+PDS scheduler versions >= 0.98c < 0.98i (e.g. used in kernels >= 4.13-pf11
+< 4.14-pf9) do not implement sched_yield() call which may result in horrible
+performance problems with libomp. If you are using one of the specified
+kernel versions, you may want to disable the PDS scheduler."
+
+		check_extra_config
+	fi
+}
+
+pkg_pretend() {
+	kernel_pds_check
+}
+
+pkg_setup() {
+	use offload && LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	use test && python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	# LTO causes issues in other packages building, #870127
+	filter-lto
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+
+	local libdir="$(get_libdir)"
+	local mycmakeargs=(
+		-DOPENMP_LIBDIR_SUFFIX="${libdir#lib}"
+
+		-DLIBOMP_USE_HWLOC=$(usex hwloc)
+		-DLIBOMP_OMPT_SUPPORT=$(usex ompt)
+
+		-DOPENMP_ENABLE_LIBOMPTARGET=$(usex offload)
+
+		# do not install libgomp.so & libiomp5.so aliases
+		-DLIBOMP_INSTALL_ALIASES=OFF
+		# disable unnecessary hack copying stuff back to srcdir
+		-DLIBOMP_COPY_EXPORTS=OFF
+	)
+
+	if use offload; then
+		if has "${CHOST%%-*}" aarch64 powerpc64le x86_64; then
+			mycmakeargs+=(
+				-DLIBOMPTARGET_BUILD_AMDGPU_PLUGIN=$(usex llvm_targets_AMDGPU)
+				-DLIBOMPTARGET_BUILD_CUDA_PLUGIN=$(usex llvm_targets_NVPTX)
+			)
+		else
+			mycmakeargs+=(
+				-DLIBOMPTARGET_BUILD_AMDGPU_PLUGIN=OFF
+				-DLIBOMPTARGET_BUILD_CUDA_PLUGIN=OFF
+			)
+		fi
+	fi
+
+	use test && mycmakeargs+=(
+		# this project does not use standard LLVM cmake macros
+		-DOPENMP_LLVM_LIT_EXECUTABLE="${EPREFIX}/usr/bin/lit"
+		-DOPENMP_LIT_ARGS="$(get_lit_flags)"
+
+		-DOPENMP_TEST_C_COMPILER="$(type -P "${CHOST}-clang")"
+		-DOPENMP_TEST_CXX_COMPILER="$(type -P "${CHOST}-clang++")"
+	)
+	addpredict /dev/nvidiactl
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+
+	cmake_build check-libomp
+}
diff --git a/sys-libs/llvm-libunwind/Manifest b/sys-libs/llvm-libunwind/Manifest
index 1aa5a573a379..8f78a1814aaa 100644
--- a/sys-libs/llvm-libunwind/Manifest
+++ b/sys-libs/llvm-libunwind/Manifest
@@ -4,12 +4,15 @@ DIST llvm-project-14.0.6.src.tar.xz.sig 566 BLAKE2B cb658ad43d8ab6c43a5773aedadf
 DIST llvm-project-14f996dca8a2b5b17d6917528bfd9ee71ba6192a.tar.gz 169054148 BLAKE2B a23af6658a6ea8a7cb4272faef151937da229e39383ec068d7ef81e72a25d2a46dc2a86255a7f1148b7385b339d1c17e62f627df834d8eccc39be8921575f88d SHA512 e719d296016e7af718d022424c337a5df8d7124fdb49b9f219ab2a5dc592e6a59f6c09064775ea9349bcf4eed9d72214abb648de649ab872174c35635c945c04
 DIST llvm-project-15.0.3.src.tar.xz 112069972 BLAKE2B 3d29bab890467ba87fedcc4e76522f444e63e3dfbe546793f8e67821bcd403bad460ea176254c9e0b72d60ea56b8480e498a7f610477c1108732d178804c26cd SHA512 d378d417f01c56534f301cfe6cb4958d811c04ae22acaacc917e7e5f0380859d40ce19dffb265d046b70fff95dbc2e759f492e4d5af0ade52f21ebaa8da65856
 DIST llvm-project-15.0.3.src.tar.xz.sig 438 BLAKE2B e7e0614e144eb878f694c12e97cf42ff8476e47cb55e8f259eb2ec52e303463ad753771271512e89baf0137c1382b11cfa028c85324174ebcd054a124000f537 SHA512 41229bebdb0c2df9a5e3a4d6f02d39fac7dc91f21895a659523beab4fa3ef99ff06eff5e4386221369b6e2b6f8fe974d67b7d8496d5911ce484d09ae0db8b916
+DIST llvm-project-15.0.4.src.tar.xz 110936424 BLAKE2B a02b76ad161e352b4d3d84baffdada9c6a0e704de7a2c4017df4d4d05a9e9d02113791cd7d91c3edfa1f5bcb7ab95e1772d60f7061514928c6828600f41a8322 SHA512 9d5b664dd77c08130601636f9d6c006b257f369470ce823aa56d06698a9f0edfec42f2c90da934b9ad52c4d7960d9a024ea46dc9640275be6d191b1ba9869459
+DIST llvm-project-15.0.4.src.tar.xz.sig 566 BLAKE2B f1a7be65fcce932dc125ae2b498f68a14e68dad0d7a1e031343c52c5dafb7b123e346f3efa50a7693584361abf01efe9401b1b5781dee6b92dc1045e538e9b7b SHA512 35899ffbd13fc44cade54246a423450571cb4b62b8d706864daa3eef2377c48e24ef3113218e39e29de995b7f7fa307f9187552766576c9050fd924beb517f6e
 DIST llvm-project-b34ea582774c057d9bf5591174d683fd3d8aa02b.tar.gz 169735900 BLAKE2B d3a82a07f855b038071fc8eb3f41a88b4c220a577219985ecddeb9a535ea8b159dbad575699997d90a49db74c074b5f4354ad707e91d6934daaa7319e0d8ee9b SHA512 3f5525c7d893bdac701cff4cf82dafc31608920d788d9b7401654f320b2432528cf4ae8ef013182807b3dc0c5b758c71f1efeedb672dd47fdb8aa6f434dfb583
 DIST llvmorg-13.0.1.tar.gz 147290251 BLAKE2B 2a44b012a672501761d0c27c6b3a315b69bfef0cd13b078a7e7d2fccc4a9c8c0f2bee0f164c4271c9106b0a99cb06e8b64986f66253b613336719fb86b82541b SHA512 9a8cb5d11964ba88b7624f19ec861fb28701f23956ea3c92f6ac644332d5f41fde97bd8933dd3ee70ed378058c252fa3a3887c8d1af90d219970c2b27691166f
 EBUILD llvm-libunwind-13.0.1-r1.ebuild 3772 BLAKE2B 8da1185d1b1c71fe4a84cf068847cdf86f210c181e5f745b3ed05635b8f2824ac7aab931a8066cf199c93553fe4a3a0915972f854af1e09b1a2411f66fee834d SHA512 736810a5a52be3271854a50b476874986618e79fb24022ae3188c68759b31b75071083db9a5c9ab8f9439edff3cf7df2e4a20a847ad330984796ed747eb1cd4f
 EBUILD llvm-libunwind-14.0.6-r1.ebuild 3161 BLAKE2B eba3be4b7bafe6a69329f7f565cf33fe3315949dd3e0a007079e1fb040bc746c9beec20c763c9c10fdc7eb7cd8cfc14053138594dd47db13df51dc3972365639 SHA512 83dbd99c4825aeb0aaeb3910af22717637a1be1ced85972381ea091183ca6ba128900511b26dedfafb4ac492d80ba3cd0982051fd71f5e72375af7e160da1f9b
 EBUILD llvm-libunwind-15.0.3.ebuild 3033 BLAKE2B c11cb9aea63dcdd34e552d5e1b0bc2c53f0ae884ad10f43426d3d70ddb812fb736ae7d7c48daa4d4a417ac3c32538bcbf7462bddd6639b5431be57868c619d3b SHA512 949fc131d1514356e2533dedc56fa2a8a49cfccb1fee172cf15ae0c1de6d1e8e6dbfa26f93bf41eb28fd39fc4c955537c9133cffe3eb6f5ff7da4260a8d60c8d
 EBUILD llvm-libunwind-15.0.4.9999.ebuild 2978 BLAKE2B e1fc6e470239200cea2bd9b84e9e084c204536e1bd2886780849f342452cf6b86a6d4d5baac91d562af632a9bcf298569ff459f24464fabc1e01accdc30e0db1 SHA512 b9e5e37262bd55c9aa776b78bcbab46be96de644ddc182fa6787200e4d6746babb09f42481d61723faec935542f869b10e7ce3af688f36a5086bcd6b235bbeec
+EBUILD llvm-libunwind-15.0.4.ebuild 3038 BLAKE2B 13e59cb5fb42def342fc97b79a9ef44f5c87870b8e393e23c954ca187ca6cc5e0b797546a7e51d9381c1ca9c5608a8ddc32879a5bda8af681426c52a2b71624e SHA512 b3fd2851bb69f5ce9f4ecf813ec9667186d85e97f7e0c1f9db4c0fb8b0ffbdd7866065ac1a855be4592b5ca795623caf4aaf27fae344bc3024efcea5d71b5584
 EBUILD llvm-libunwind-16.0.0.9999.ebuild 2978 BLAKE2B e1fc6e470239200cea2bd9b84e9e084c204536e1bd2886780849f342452cf6b86a6d4d5baac91d562af632a9bcf298569ff459f24464fabc1e01accdc30e0db1 SHA512 b9e5e37262bd55c9aa776b78bcbab46be96de644ddc182fa6787200e4d6746babb09f42481d61723faec935542f869b10e7ce3af688f36a5086bcd6b235bbeec
 EBUILD llvm-libunwind-16.0.0_pre20221016.ebuild 2888 BLAKE2B 256d1277c398fbfd6361c7ea7649d486fa7032a4d93bba637154a51c0612e43ae6276f4a653e83edd20dcc8bf903bc3c85930c5efd5f86a25f004e3e7c2120f1 SHA512 38676c41a2b511dd2094a9dee38261278617922f231e653c0c6ed7cbe347952562b3c55523d1282cc184be4c19806516075fe7c05a832d296451f0094530e53f
 EBUILD llvm-libunwind-16.0.0_pre20221023.ebuild 2888 BLAKE2B 256d1277c398fbfd6361c7ea7649d486fa7032a4d93bba637154a51c0612e43ae6276f4a653e83edd20dcc8bf903bc3c85930c5efd5f86a25f004e3e7c2120f1 SHA512 38676c41a2b511dd2094a9dee38261278617922f231e653c0c6ed7cbe347952562b3c55523d1282cc184be4c19806516075fe7c05a832d296451f0094530e53f
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-15.0.4.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-15.0.4.ebuild
new file mode 100644
index 000000000000..9323dc121cae
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-15.0.4.ebuild
@@ -0,0 +1,123 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{8..11} )
+inherit cmake-multilib flag-o-matic llvm llvm.org python-any-r1 \
+	toolchain-funcs
+
+DESCRIPTION="C++ runtime stack unwinder from LLVM"
+HOMEPAGE="https://llvm.org/docs/ExceptionHandling.html"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~riscv ~sparc ~x86 ~x64-macos"
+IUSE="+clang debug static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	!sys-libs/libunwind
+"
+DEPEND="
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? (
+		sys-devel/clang:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+	test? (
+		$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
+	)
+"
+
+LLVM_COMPONENTS=( runtimes libunwind libcxx llvm/cmake cmake )
+LLVM_TEST_COMPONENTS=( libcxxabi llvm/utils/llvm-lit )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
+	python-any-r1_pkg_setup
+}
+
+multilib_src_configure() {
+	local libdir=$(get_libdir)
+
+	# https://github.com/llvm/llvm-project/issues/56825
+	# also separately bug #863917
+	filter-lto
+
+	if use clang; then
+		local -x CC=${CHOST}-clang
+		local -x CXX=${CHOST}-clang++
+		strip-unsupported-flags
+	fi
+
+	# link to compiler-rt
+	# https://github.com/gentoo/gentoo/pull/21516
+	local use_compiler_rt=OFF
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	local mycmakeargs=(
+		-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
+		-DPython3_EXECUTABLE="${PYTHON}"
+		-DLLVM_ENABLE_RUNTIMES="libunwind"
+		-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+		-DLLVM_INCLUDE_TESTS=OFF
+		-DLIBUNWIND_ENABLE_ASSERTIONS=$(usex debug)
+		-DLIBUNWIND_ENABLE_STATIC=$(usex static-libs)
+		-DLIBUNWIND_INCLUDE_TESTS=$(usex test)
+		-DLIBUNWIND_INSTALL_HEADERS=ON
+
+		# support non-native unwinding; given it's small enough,
+		# enable it unconditionally
+		-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
+
+		# avoid dependency on libgcc_s if compiler-rt is used
+		-DLIBUNWIND_USE_COMPILER_RT=${use_compiler_rt}
+	)
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_ENABLE_RUNTIMES="libunwind;libcxxabi;libcxx"
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DLIBUNWIND_LIBCXX_PATH="${WORKDIR}/libcxx"
+
+			-DLIBCXXABI_LIBDIR_SUFFIX=
+			-DLIBCXXABI_ENABLE_SHARED=OFF
+			-DLIBCXXABI_ENABLE_STATIC=ON
+			-DLIBCXXABI_USE_LLVM_UNWINDER=ON
+			-DLIBCXXABI_INCLUDE_TESTS=OFF
+
+			-DLIBCXX_LIBDIR_SUFFIX=
+			-DLIBCXX_ENABLE_SHARED=OFF
+			-DLIBCXX_ENABLE_STATIC=ON
+			-DLIBCXX_CXX_ABI=libcxxabi
+			-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+			-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
+			-DLIBCXX_HAS_GCC_S_LIB=OFF
+			-DLIBCXX_INCLUDE_TESTS=OFF
+			-DLIBCXX_INCLUDE_BENCHMARKS=OFF
+		)
+	fi
+
+	cmake_src_configure
+}
+
+multilib_src_test() {
+	local -x LIT_PRESERVES_TMP=1
+	cmake_build check-unwind
+}
+
+multilib_src_install() {
+	DESTDIR=${D} cmake_build install-unwind
+}