gentoo auto-resync : 14:07:2024 - 12:27:13

13 files changed, 932 insertions, 0 deletions

diff --git a/sys-libs/Manifest.gz b/sys-libs/Manifest.gz
index ebae423bd9a5..9baac8dc2ac6 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 f93d318b4df4..3f2f3845d33d 100644
--- a/sys-libs/compiler-rt-sanitizers/Manifest
+++ b/sys-libs/compiler-rt-sanitizers/Manifest
@@ -8,10 +8,12 @@ DIST llvm-project-17.0.6.src.tar.xz 127838860 BLAKE2B d6ede1a9fda8756995c3e06541
 DIST llvm-project-17.0.6.src.tar.xz.sig 438 BLAKE2B 186e75b6a0fbfe1e85408589c149e1800fcc47d685b74e4260018e05cd08bc793d1d1197c9c50e177eea941a3d0c65cb0c583ce6dae449099b920adf8a508ef7 SHA512 f78c55053a6450625f3e95f52c305110b4468a9854fec75831b65b8d6ceee3c9206ab9e63c4b5fda8be9bd344f72cfbdaae0520ed240abd505e08ebeaa25d340
 DIST llvm-project-18.1.8.src.tar.xz 132067260 BLAKE2B a950492f1dbfb874dff63b1ffef86468169ba2f211a9733ec2d4cf30040f7f277ef00f048bb44dee9f97d7d762f0f241f19e5a2a7b0b49217d3821ddfc8c354f SHA512 25eeee9984c8b4d0fbc240df90f33cbb000d3b0414baff5c8982beafcc5e59e7ef18f6f85d95b3a5f60cb3d4cd4f877c80487b5768bc21bc833f107698ad93db
 DIST llvm-project-18.1.8.src.tar.xz.sig 566 BLAKE2B 6ab0efc5b38d4483f4e32e8b85774b2edd5d88fdf29f23b88eb0b5130a7a7f0e80549612b025f927e92de4a08ff7c292cff224dbda91a5d598244e98f7ad0fbd SHA512 ddfd1e8a06756759af6cbe488c82a6d6a62ba91f3e8a0eb4cece561321824f5d165b08ed91010588790b76e19790931d2651b24dba8567e3b151d3cb43bec25b
+DIST llvm-project-1bad7024561bc64ed4bfda0772b16376b475eba5.tar.gz 216657623 BLAKE2B 99c48a95c427e8fae5568e5f59ab9bec8b2d8bec0c5d3cf453c261a738fe1c295b34e2e10e6b08d2b02cae43e3b0cd4c8eb025d19a83ee51f47a49afadd56d3f SHA512 08fc904122ab346edbfc3903cafae4f50ba57e146b2d821a568f8378c0f3ab4d413e07c5df2bf061374f9db4634b5f6b27f204fc4f2f68984303ceec9c963c0c
 EBUILD compiler-rt-sanitizers-15.0.7.ebuild 6648 BLAKE2B 89d90e750bc9c3c35e8a42a259fd84bc147ed9b7ed66168435f0010ef8adaf35e04e2cd43c1acc144668e04f5c229ca3cfd99aeb01b4ba2e46f10dd4615e131d SHA512 4f290993d65b7a17280c5ea9a9d19e13cefdde3aebc2236271e02bb1517655895e8eb3adc2047a849ce11dbacf8d7eddec715ab14523122089d856c21ae123a0
 EBUILD compiler-rt-sanitizers-16.0.6.ebuild 6615 BLAKE2B 3ca63eefd87ce02510afa912e809895da7356a8e248f402f3fca1583048feebf80cba20f076e1b28fa4ad7f7c06781910948fc49d980b03276a900dc75114e06 SHA512 7f34e0416b520c75457f8267f28630f7a665f05e22d3f5c2d96ea631fcda79a584b6c0e75cba8b7fba7bf28b87a6b19b49be3b4b8770393caabc5ebc83831ebe
 EBUILD compiler-rt-sanitizers-17.0.6.ebuild 6447 BLAKE2B 553a762d6dd06dafca05953f4d60e5e3dd215d813da29053d5c4c44750554e3ed90c187390196eeee3bc85bb1e3fbdac7aa2e100b623271898478003792a1302 SHA512 6beaa92bf1ba5213dc9c73395ecdae737f1a84119da6e3f8f008f9f21cf7d7b08b3634ad8768af6b19992fd49d964344c7d37e19b7c7bfec02af644bdc730bbd
 EBUILD compiler-rt-sanitizers-18.1.8.ebuild 6358 BLAKE2B 1a191c1e493b3a596a68314c4c930d12e900869bbd2a7488d9edfef723ad2f154e577758cd523465a65c3aa64da3ac79c0582eb812f45079442557837d988c8d SHA512 923d388eb43f27a0bd28bda7b405cf74bbd6810faa17272ee0889b89e2f832be71fb32e7b721cdedb7e7d4717af1eca69c9054bfcabf7d56fd2375cb7458d4cb
 EBUILD compiler-rt-sanitizers-19.0.0.9999.ebuild 6366 BLAKE2B 4e6459ee51444413b05b661deedbe0f3543f71f6e05349a3a7f4a6352897ee7ea8a62a8ec4a26c5c31a4ba21e68b045b3e37d9e2530ad51519a9f7d2a455342c SHA512 c7ec9377a079c30b3460a7201482b5183ab35755824a7d1c81d90dc2c519a6e2410c0f51fdb4719b8239ee841c162b20ad1cf191068a27a8f13664cad4aa1ca9
 EBUILD compiler-rt-sanitizers-19.0.0_pre20240706.ebuild 6366 BLAKE2B 4e6459ee51444413b05b661deedbe0f3543f71f6e05349a3a7f4a6352897ee7ea8a62a8ec4a26c5c31a4ba21e68b045b3e37d9e2530ad51519a9f7d2a455342c SHA512 c7ec9377a079c30b3460a7201482b5183ab35755824a7d1c81d90dc2c519a6e2410c0f51fdb4719b8239ee841c162b20ad1cf191068a27a8f13664cad4aa1ca9
+EBUILD compiler-rt-sanitizers-19.0.0_pre20240712.ebuild 6366 BLAKE2B 4e6459ee51444413b05b661deedbe0f3543f71f6e05349a3a7f4a6352897ee7ea8a62a8ec4a26c5c31a4ba21e68b045b3e37d9e2530ad51519a9f7d2a455342c SHA512 c7ec9377a079c30b3460a7201482b5183ab35755824a7d1c81d90dc2c519a6e2410c0f51fdb4719b8239ee841c162b20ad1cf191068a27a8f13664cad4aa1ca9
 MISC metadata.xml 1475 BLAKE2B f7ea99e3103e42a2c79fe6c86ad174297e56bcffa7b164ac3ab0a239ba5adf2265b7fc458ce8b22c9c3bd647bb03d674abf842443cb32bf8d88c683746650a19 SHA512 8e52479d3b040718a3fdaa811030bc45ef33ce74daae3e365281074cdf6d586ba11ae5f14d87dbb456f00fe4b9ae6057f3bf30eb0973cc16cbdcc3eba01ff9f8
diff --git a/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-19.0.0_pre20240712.ebuild b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-19.0.0_pre20240712.ebuild
new file mode 100644
index 000000000000..d395b7fd5a11
--- /dev/null
+++ b/sys-libs/compiler-rt-sanitizers/compiler-rt-sanitizers-19.0.0_pre20240712.ebuild
@@ -0,0 +1,220 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+inherit check-reqs cmake flag-o-matic llvm.org llvm-utils 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_MAJOR}"
+IUSE="+abi_x86_32 abi_x86_64 +clang +debug test"
+# base targets
+IUSE+=" +ctx-profile +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="
+	clang? ( sys-devel/clang )
+	elibc_glibc? ( net-libs/libtirpc )
+	test? (
+		$(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]")
+		=sys-devel/clang-${LLVM_VERSION}*:${LLVM_MAJOR}
+		sys-libs/compiler-rt:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+"
+
+LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake )
+LLVM_TEST_COMPONENTS=(
+	llvm/include/llvm/ProfileData llvm/lib/Testing/Support third-party
+)
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version ">=dev-python/lit-15[${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
+	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
+	# hangs, sigh
+	rm test/tsan/getline_nohang.cpp || die
+
+	llvm.org_src_prepare
+}
+
+src_configure() {
+	llvm_prepend_path "${LLVM_MAJOR}"
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${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/${LLVM_MAJOR}"
+		# use a build dir structure consistent with install
+		# this makes it possible to easily deploy test-friendly clang
+		-DCOMPILER_RT_OUTPUT_DIR="${BUILD_DIR}/lib/clang/${LLVM_MAJOR}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		# builtins & crt installed by sys-libs/compiler-rt
+		-DCOMPILER_RT_BUILD_BUILTINS=OFF
+		-DCOMPILER_RT_BUILD_CRT=OFF
+		-DCOMPILER_RT_BUILD_CTX_PROFILE=$(usex ctx-profile)
+		-DCOMPILER_RT_BUILD_LIBFUZZER=$(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_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_MAJOR}/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/${LLVM_MAJOR}/include} || die
+		cp "${EPREFIX}"/usr/lib/llvm/${LLVM_MAJOR}/bin/clang{,++} \
+			"${BUILD_DIR}"/lib/llvm/${LLVM_MAJOR}/bin/ || die
+		cp "${EPREFIX}"/usr/lib/clang/${LLVM_MAJOR}/include/*.h \
+			"${BUILD_DIR}"/lib/clang/${LLVM_MAJOR}/include/ || die
+		cp "${sys_dir}"/*builtins*.a \
+			"${BUILD_DIR}/lib/clang/${LLVM_MAJOR}/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 1e7e77e6f5ca..ec3dc2140433 100644
--- a/sys-libs/compiler-rt/Manifest
+++ b/sys-libs/compiler-rt/Manifest
@@ -10,6 +10,7 @@ DIST llvm-project-17.0.6.src.tar.xz 127838860 BLAKE2B d6ede1a9fda8756995c3e06541
 DIST llvm-project-17.0.6.src.tar.xz.sig 438 BLAKE2B 186e75b6a0fbfe1e85408589c149e1800fcc47d685b74e4260018e05cd08bc793d1d1197c9c50e177eea941a3d0c65cb0c583ce6dae449099b920adf8a508ef7 SHA512 f78c55053a6450625f3e95f52c305110b4468a9854fec75831b65b8d6ceee3c9206ab9e63c4b5fda8be9bd344f72cfbdaae0520ed240abd505e08ebeaa25d340
 DIST llvm-project-18.1.8.src.tar.xz 132067260 BLAKE2B a950492f1dbfb874dff63b1ffef86468169ba2f211a9733ec2d4cf30040f7f277ef00f048bb44dee9f97d7d762f0f241f19e5a2a7b0b49217d3821ddfc8c354f SHA512 25eeee9984c8b4d0fbc240df90f33cbb000d3b0414baff5c8982beafcc5e59e7ef18f6f85d95b3a5f60cb3d4cd4f877c80487b5768bc21bc833f107698ad93db
 DIST llvm-project-18.1.8.src.tar.xz.sig 566 BLAKE2B 6ab0efc5b38d4483f4e32e8b85774b2edd5d88fdf29f23b88eb0b5130a7a7f0e80549612b025f927e92de4a08ff7c292cff224dbda91a5d598244e98f7ad0fbd SHA512 ddfd1e8a06756759af6cbe488c82a6d6a62ba91f3e8a0eb4cece561321824f5d165b08ed91010588790b76e19790931d2651b24dba8567e3b151d3cb43bec25b
+DIST llvm-project-1bad7024561bc64ed4bfda0772b16376b475eba5.tar.gz 216657623 BLAKE2B 99c48a95c427e8fae5568e5f59ab9bec8b2d8bec0c5d3cf453c261a738fe1c295b34e2e10e6b08d2b02cae43e3b0cd4c8eb025d19a83ee51f47a49afadd56d3f SHA512 08fc904122ab346edbfc3903cafae4f50ba57e146b2d821a568f8378c0f3ab4d413e07c5df2bf061374f9db4634b5f6b27f204fc4f2f68984303ceec9c963c0c
 EBUILD compiler-rt-15.0.7.ebuild 4238 BLAKE2B 22d56dbe24c92400bf58942390b06af70fddba89d8fecc9b85162dd7a41c6ee592eaaf883f5ad483f65f74fabccc28f94528688410ee36e2d5279efcc6066de0 SHA512 ca49d23def580d4dcfc4058768eeb9deb6e59ea44575da272d1c142fffe0bf4e3d3c7c9fa6182ab348a3aab11879af116a549cb1a3a03b27b4bf4151cf892aaa
 EBUILD compiler-rt-16.0.6-r4.ebuild 5226 BLAKE2B 7d2d76d79ce49f3d175de87fa982439ceade80787a4f4f96cbda9a0e7c161e89fc49646908e32fd35ed3629956ed0ff79ff2f74754a705264f2d6e2f02f831cb SHA512 14ba6b2644e4b0bcab31e686d395b859eab9ee8ba7adb2242e4fd80d07290cff1243cd644ee8fec53f536dd13d150a16761255ff938ed0c6e717f26165e93945
 EBUILD compiler-rt-16.0.6.ebuild 5198 BLAKE2B 2fe2310703d44d330d97b1fa1b407d99898070604037be31ca762fe65043e1d3d1e046298dc74f3d0cbb3493f985661e362b217170cbe1bf74a47dddfe8987ca SHA512 cc9aabc22f689bfc677ceb74793441674aeca2586a28ff96b812af4822d1b8b5a4147484e41f0bf95ae995488d3e8ee77684fd684b9dab8ade4f1fa57e80c709
@@ -17,4 +18,5 @@ EBUILD compiler-rt-17.0.6.ebuild 5218 BLAKE2B 3f488320228fd2a3d1caed790e8e21c7c3
 EBUILD compiler-rt-18.1.8.ebuild 4972 BLAKE2B 3bd56ca93ddb3f21007b16c794140281e9fd27cd6fb80e5f00f49ec5e8c46dff56b1a94ba467f6b89c359c8638d9f2d8b9ba67a88268454e0accd79d0a36d768 SHA512 3072e5cc1e5dbea1ca3af15e6ffe29d1f2f664654a493eb509f4fa7b615d7f9e286ffff49dddc9835e928d7895e39239559a65768c6678e8344a73a136070704
 EBUILD compiler-rt-19.0.0.9999.ebuild 4963 BLAKE2B dc2eab2b95233dc791544f2cfcedf6f812ccfde2f31ce14525f60fa4d4df91ca2f93ab702156c0acdbb07fd03face456a521b7e92572b7997a2358a6e1290c95 SHA512 a0299d32d9e7539ec36740899b697f6afa69ca91528fdebe35ffa39c592a6dace90b080cca233a65ce932d17ce76292e7920fa569a3aa3e37424c9f0112c9b2f
 EBUILD compiler-rt-19.0.0_pre20240706.ebuild 4963 BLAKE2B dc2eab2b95233dc791544f2cfcedf6f812ccfde2f31ce14525f60fa4d4df91ca2f93ab702156c0acdbb07fd03face456a521b7e92572b7997a2358a6e1290c95 SHA512 a0299d32d9e7539ec36740899b697f6afa69ca91528fdebe35ffa39c592a6dace90b080cca233a65ce932d17ce76292e7920fa569a3aa3e37424c9f0112c9b2f
+EBUILD compiler-rt-19.0.0_pre20240712.ebuild 4963 BLAKE2B dc2eab2b95233dc791544f2cfcedf6f812ccfde2f31ce14525f60fa4d4df91ca2f93ab702156c0acdbb07fd03face456a521b7e92572b7997a2358a6e1290c95 SHA512 a0299d32d9e7539ec36740899b697f6afa69ca91528fdebe35ffa39c592a6dace90b080cca233a65ce932d17ce76292e7920fa569a3aa3e37424c9f0112c9b2f
 MISC metadata.xml 416 BLAKE2B 79a58249c94b605ba57f346c4e05b43853cf6cfb8bb65a4f4e3c44039cccfdb83dd31bfaaaf398bcbdc393efabdfc7ed186fe775976c46227e74decf2c8f4fb2 SHA512 ce30c79a575e5933effb1fec36f9a4ef02d9f97f312feb39c55a88cbda9a1bae1d7af2ec4ad5f66212cbb2cdbfb26f1a436689f16f410153c9d65eb010264c48
diff --git a/sys-libs/compiler-rt/compiler-rt-19.0.0_pre20240712.ebuild b/sys-libs/compiler-rt/compiler-rt-19.0.0_pre20240712.ebuild
new file mode 100644
index 000000000000..ca99f4442636
--- /dev/null
+++ b/sys-libs/compiler-rt/compiler-rt-19.0.0_pre20240712.ebuild
@@ -0,0 +1,173 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+inherit cmake crossdev flag-o-matic llvm.org llvm-utils python-any-r1
+inherit 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_MAJOR}"
+IUSE="+abi_x86_32 abi_x86_64 +clang +debug test"
+RESTRICT="!test? ( test ) !clang? ( test )"
+
+DEPEND="
+	sys-devel/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+	clang? ( sys-devel/clang )
+	test? (
+		$(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]")
+		=sys-devel/clang-${LLVM_VERSION}*:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+"
+
+LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake )
+LLVM_TEST_COMPONENTS=( llvm/include/llvm/TargetParser )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version ">=dev-python/lit-15[${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() {
+	if target_is_not_host || tc-is-cross-compiler ; then
+		# strips vars like CFLAGS="-march=x86_64-v3" for non-x86 architectures
+		CHOST=${CTARGET} strip-unsupported-flags
+		# overrides host docs otherwise
+		DOCS=()
+	fi
+	python-any-r1_pkg_setup
+}
+
+test_compiler() {
+	target_is_not_host && return
+	$(tc-getCC) ${CFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c - \
+		<<<'int main() { return 0; }' &>/dev/null
+}
+
+src_configure() {
+	llvm_prepend_path "${LLVM_MAJOR}"
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+
+	# pre-set since we need to pass it to cmake
+	BUILD_DIR=${WORKDIR}/${P}_build
+
+	if use clang && ! is_crosspkg; 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 ! is_crosspkg && ! 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 -e main )
+
+			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/${LLVM_MAJOR}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		-DCOMPILER_RT_BUILD_CTX_PROFILE=OFF
+		-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="${PYTHON}"
+	)
+
+	if use amd64 && ! target_is_not_host; then
+		mycmakeargs+=(
+			-DCAN_TARGET_i386=$(usex abi_x86_32)
+			-DCAN_TARGET_x86_64=$(usex abi_x86_64)
+		)
+	fi
+
+	if is_crosspkg; then
+		# Needed to target built libc headers
+		export CFLAGS="${CFLAGS} -isystem /usr/${CTARGET}/usr/include"
+		mycmakeargs+=(
+			# Without this, the compiler will compile a test program
+			# and fail due to no builtins.
+			-DCMAKE_C_COMPILER_WORKS=1
+			-DCMAKE_CXX_COMPILER_WORKS=1
+
+			# Without this, compiler-rt install location is not unique
+			# to target triples, only to architecture.
+			# Needed if you want to target multiple libcs for one arch.
+			-DLLVM_ENABLE_PER_TARGET_RUNTIME_DIR=ON
+
+			-DCMAKE_ASM_COMPILER_TARGET="${CTARGET}"
+			-DCMAKE_C_COMPILER_TARGET="${CTARGET}"
+			-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON
+		)
+	fi
+
+	if use prefix && [[ "${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/libcxx/Manifest b/sys-libs/libcxx/Manifest
index b5b5873b37ed..4753a8426ee1 100644
--- a/sys-libs/libcxx/Manifest
+++ b/sys-libs/libcxx/Manifest
@@ -9,10 +9,12 @@ DIST llvm-project-17.0.6.src.tar.xz 127838860 BLAKE2B d6ede1a9fda8756995c3e06541
 DIST llvm-project-17.0.6.src.tar.xz.sig 438 BLAKE2B 186e75b6a0fbfe1e85408589c149e1800fcc47d685b74e4260018e05cd08bc793d1d1197c9c50e177eea941a3d0c65cb0c583ce6dae449099b920adf8a508ef7 SHA512 f78c55053a6450625f3e95f52c305110b4468a9854fec75831b65b8d6ceee3c9206ab9e63c4b5fda8be9bd344f72cfbdaae0520ed240abd505e08ebeaa25d340
 DIST llvm-project-18.1.8.src.tar.xz 132067260 BLAKE2B a950492f1dbfb874dff63b1ffef86468169ba2f211a9733ec2d4cf30040f7f277ef00f048bb44dee9f97d7d762f0f241f19e5a2a7b0b49217d3821ddfc8c354f SHA512 25eeee9984c8b4d0fbc240df90f33cbb000d3b0414baff5c8982beafcc5e59e7ef18f6f85d95b3a5f60cb3d4cd4f877c80487b5768bc21bc833f107698ad93db
 DIST llvm-project-18.1.8.src.tar.xz.sig 566 BLAKE2B 6ab0efc5b38d4483f4e32e8b85774b2edd5d88fdf29f23b88eb0b5130a7a7f0e80549612b025f927e92de4a08ff7c292cff224dbda91a5d598244e98f7ad0fbd SHA512 ddfd1e8a06756759af6cbe488c82a6d6a62ba91f3e8a0eb4cece561321824f5d165b08ed91010588790b76e19790931d2651b24dba8567e3b151d3cb43bec25b
+DIST llvm-project-1bad7024561bc64ed4bfda0772b16376b475eba5.tar.gz 216657623 BLAKE2B 99c48a95c427e8fae5568e5f59ab9bec8b2d8bec0c5d3cf453c261a738fe1c295b34e2e10e6b08d2b02cae43e3b0cd4c8eb025d19a83ee51f47a49afadd56d3f SHA512 08fc904122ab346edbfc3903cafae4f50ba57e146b2d821a568f8378c0f3ab4d413e07c5df2bf061374f9db4634b5f6b27f204fc4f2f68984303ceec9c963c0c
 EBUILD libcxx-15.0.7-r1.ebuild 5283 BLAKE2B 4380fc5b851054a5ec226ee4c92a2b79511d73ac9b3f8bccc977211601eca36113fc0ae605854da53898507021f24a8b319197605c556244d84253bede7b84f4 SHA512 0a5859269422e794deb43ed960651a1dea830af28b5e395f32e28de8e67a1f399507340230af1c84248853f554e751709a60a9a78aeb0eb42804cb41907dbfce
 EBUILD libcxx-16.0.6.ebuild 5300 BLAKE2B 4714e22ad2fdcb07c62ead4cfa47fb4734e45dc055700b63a0f24cd6e93dde960c638fa16f55f4c04c6130fc2a7fa5729814c4aee12e9953f603ea5ccb706cc1 SHA512 3eab779107b5c737d971abe29b7bd9f44a73570957bd7d54d6aaa98ec78a6045d7d69272d611f7f09c60e1aa30bbad46b4bd1358b0b2c69e5bc686ab21444857
 EBUILD libcxx-17.0.6.ebuild 5280 BLAKE2B a882313471af07942a0772efa642800ba85545227f7dfe281cd7fcdc686ecda82692d273550b28cca2de47b1b9fda87717c98c52ffafdf1155d5269a3733f48a SHA512 d9a2932d7b9e26dea0e62dfd3aeac08ad0206a242d3d42d83e55b93cc767195a67bc0eb3da38cb8d51930175f94bac6496184d6d4be516014e0208c3f852d427
 EBUILD libcxx-18.1.8.ebuild 5447 BLAKE2B 262f4dd0ccb046dcdf7f6970350381a9a48530f7db546f1b6cef5493b5e2a657a403bb0b5fda0d2d100420c6f8f1bac82f635efa8ad6c70d4476ad101c35eb13 SHA512 74ddb2227a2c8cd3d106861dc8155720f757011933835a36b8a5c133de68db80c14d93ad0cd8c3fa62232ce1e0871889b6db15c4bd53d2c1ea34762d93addc0c
 EBUILD libcxx-19.0.0.9999.ebuild 5101 BLAKE2B 4fb27fae1b4b3230de9b645416cba17ceb584260faf4c640d743b482cf333116ee00138ce206a62fbdb2811cd6e59dba2d8463949a17545a74f50837c274f355 SHA512 b88b738fad3d0f2aba6736ef9361250165a25a9f6011c8a8f61f035475d84f7bc8d9f3da95ab549d3eebeee338301dd734eed3c85365015134765ef003daa341
 EBUILD libcxx-19.0.0_pre20240706.ebuild 5101 BLAKE2B 4fb27fae1b4b3230de9b645416cba17ceb584260faf4c640d743b482cf333116ee00138ce206a62fbdb2811cd6e59dba2d8463949a17545a74f50837c274f355 SHA512 b88b738fad3d0f2aba6736ef9361250165a25a9f6011c8a8f61f035475d84f7bc8d9f3da95ab549d3eebeee338301dd734eed3c85365015134765ef003daa341
+EBUILD libcxx-19.0.0_pre20240712.ebuild 5101 BLAKE2B 4fb27fae1b4b3230de9b645416cba17ceb584260faf4c640d743b482cf333116ee00138ce206a62fbdb2811cd6e59dba2d8463949a17545a74f50837c274f355 SHA512 b88b738fad3d0f2aba6736ef9361250165a25a9f6011c8a8f61f035475d84f7bc8d9f3da95ab549d3eebeee338301dd734eed3c85365015134765ef003daa341
 MISC metadata.xml 598 BLAKE2B b7a60449e0d8e4e7605ec203dfaa45b17a265b024e21a3bcfe05a3aeb6c3d19a1d2a218cb1f9ac9ed52296f0d6e723fed251f364341fb70cbd91b747962db580 SHA512 a23f912efff52c4687767023da826ace8c6e5dcd5e69ece86aabbea99da89e48ba81cdc292f03193e2e8a05743e62ebf4d4735d038e0cc4b42714fa277569335
diff --git a/sys-libs/libcxx/libcxx-19.0.0_pre20240712.ebuild b/sys-libs/libcxx/libcxx-19.0.0_pre20240712.ebuild
new file mode 100644
index 000000000000..a0d07e1507f4
--- /dev/null
+++ b/sys-libs/libcxx/libcxx-19.0.0_pre20240712.ebuild
@@ -0,0 +1,201 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+inherit cmake-multilib flag-o-matic llvm.org llvm-utils python-any-r1
+inherit 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"
+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-debug/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() {
+	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() {
+	llvm_prepend_path "${LLVM_MAJOR}"
+
+	# note: we need to do this before multilib kicks in since it will
+	# alter the CHOST
+	local cxxabi cxxabi_incs
+	if use libcxxabi; then
+		cxxabi=system-libcxxabi
+		cxxabi_incs="${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_INSTALL_MODULES=ON
+		-DLIBCXX_USE_COMPILER_RT=${use_compiler_rt}
+		# this is broken with standalone builds, and also meaningless
+		-DLIBCXXABI_USE_LLVM_UNWINDER=OFF
+	)
+
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
+			-DLLVM_LIT_ARGS="$(get_lit_flags)"
+			-DPython3_EXECUTABLE="${PYTHON}"
+		)
+	fi
+	cmake_src_configure
+}
+
+multilib_src_compile() {
+	cmake_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 c6dc94452a26..2ab62f0431c1 100644
--- a/sys-libs/libcxxabi/Manifest
+++ b/sys-libs/libcxxabi/Manifest
@@ -7,10 +7,12 @@ DIST llvm-project-17.0.6.src.tar.xz 127838860 BLAKE2B d6ede1a9fda8756995c3e06541
 DIST llvm-project-17.0.6.src.tar.xz.sig 438 BLAKE2B 186e75b6a0fbfe1e85408589c149e1800fcc47d685b74e4260018e05cd08bc793d1d1197c9c50e177eea941a3d0c65cb0c583ce6dae449099b920adf8a508ef7 SHA512 f78c55053a6450625f3e95f52c305110b4468a9854fec75831b65b8d6ceee3c9206ab9e63c4b5fda8be9bd344f72cfbdaae0520ed240abd505e08ebeaa25d340
 DIST llvm-project-18.1.8.src.tar.xz 132067260 BLAKE2B a950492f1dbfb874dff63b1ffef86468169ba2f211a9733ec2d4cf30040f7f277ef00f048bb44dee9f97d7d762f0f241f19e5a2a7b0b49217d3821ddfc8c354f SHA512 25eeee9984c8b4d0fbc240df90f33cbb000d3b0414baff5c8982beafcc5e59e7ef18f6f85d95b3a5f60cb3d4cd4f877c80487b5768bc21bc833f107698ad93db
 DIST llvm-project-18.1.8.src.tar.xz.sig 566 BLAKE2B 6ab0efc5b38d4483f4e32e8b85774b2edd5d88fdf29f23b88eb0b5130a7a7f0e80549612b025f927e92de4a08ff7c292cff224dbda91a5d598244e98f7ad0fbd SHA512 ddfd1e8a06756759af6cbe488c82a6d6a62ba91f3e8a0eb4cece561321824f5d165b08ed91010588790b76e19790931d2651b24dba8567e3b151d3cb43bec25b
+DIST llvm-project-1bad7024561bc64ed4bfda0772b16376b475eba5.tar.gz 216657623 BLAKE2B 99c48a95c427e8fae5568e5f59ab9bec8b2d8bec0c5d3cf453c261a738fe1c295b34e2e10e6b08d2b02cae43e3b0cd4c8eb025d19a83ee51f47a49afadd56d3f SHA512 08fc904122ab346edbfc3903cafae4f50ba57e146b2d821a568f8378c0f3ab4d413e07c5df2bf061374f9db4634b5f6b27f204fc4f2f68984303ceec9c963c0c
 EBUILD libcxxabi-15.0.7.ebuild 2911 BLAKE2B 5f2004d2f68fe4eddb0b22be82d28fcca7954d0e3ad9a5510744adc4d0dfd7a1ab9fd928404adcd3eeecc58703f51117d0a80e5895b53e0ae7b71621ad5a435c SHA512 5b8e2c6abdec785649aa41b7f05ab86ecab30ff0631d6078c9b1052b406c320c5847b8f16ffa6d9e62ba4a6bca5959b18770810924d6e6da264fb08d6ff738d0
 EBUILD libcxxabi-16.0.6.ebuild 2932 BLAKE2B 837ab88ee88d5497b8bddb9f001d4b4ddd44ed982ef47114c965174135ed136abd0e3a6f3848a4aba53d0ca3748c54674cb28de8d46fda3bb7a90f326d41c7c6 SHA512 e4ebf7f35d2cad3bf3ba02754c85fee1cd1c4e52887770698ebaa3ef2fe66873f468677d307ea2d6956c2f6d3ac9b61943461193a5315f1e8a2846f2463b0581
 EBUILD libcxxabi-17.0.6.ebuild 2932 BLAKE2B 837ab88ee88d5497b8bddb9f001d4b4ddd44ed982ef47114c965174135ed136abd0e3a6f3848a4aba53d0ca3748c54674cb28de8d46fda3bb7a90f326d41c7c6 SHA512 e4ebf7f35d2cad3bf3ba02754c85fee1cd1c4e52887770698ebaa3ef2fe66873f468677d307ea2d6956c2f6d3ac9b61943461193a5315f1e8a2846f2463b0581
 EBUILD libcxxabi-18.1.8.ebuild 2764 BLAKE2B 1d716983ec2cf1f3ad73b9a3947feb5deddd91750495d7fe5eb9d3ecea9545c7dd4bde00a348272e92aec46845286f9a844077ece2b91a80222bae44c22a514b SHA512 7d94d2fe04acbbc8651c1b7588f9b94603de10aaefc949aaa408d7e7f8d53ccca9b411a2a7f3af7edc2a4f05008977dddd039c7ac1cf17968ba59c7484b3bb68
 EBUILD libcxxabi-19.0.0.9999.ebuild 2684 BLAKE2B db3cdfc7962bc9b9a40f6783b813bb64a26a2d9cff7bcab99fb2b8ff6221789a8799c077837492280b543cd32bf6853638e0a9b3f07b36d0f9683e7b41601c8b SHA512 b0eb6cbd9ff0ccb5f08fefeb7c00e2eb08574137a0f38b52e4df9ea462b2c1c521d4fa8628f407bcbb26aedb77406b4eabbe1ef9c7939fed2b9be5fc0ce1ca34
 EBUILD libcxxabi-19.0.0_pre20240706.ebuild 2684 BLAKE2B db3cdfc7962bc9b9a40f6783b813bb64a26a2d9cff7bcab99fb2b8ff6221789a8799c077837492280b543cd32bf6853638e0a9b3f07b36d0f9683e7b41601c8b SHA512 b0eb6cbd9ff0ccb5f08fefeb7c00e2eb08574137a0f38b52e4df9ea462b2c1c521d4fa8628f407bcbb26aedb77406b4eabbe1ef9c7939fed2b9be5fc0ce1ca34
+EBUILD libcxxabi-19.0.0_pre20240712.ebuild 2684 BLAKE2B db3cdfc7962bc9b9a40f6783b813bb64a26a2d9cff7bcab99fb2b8ff6221789a8799c077837492280b543cd32bf6853638e0a9b3f07b36d0f9683e7b41601c8b SHA512 b0eb6cbd9ff0ccb5f08fefeb7c00e2eb08574137a0f38b52e4df9ea462b2c1c521d4fa8628f407bcbb26aedb77406b4eabbe1ef9c7939fed2b9be5fc0ce1ca34
 MISC metadata.xml 438 BLAKE2B 0a830a06a53a6cdaf138ad7620fe366fae05c1c1451267d6a58caf7da5ce8f5a26d302fab53b9460920074ab5a65991d3bd24fde087809e8dc12188dd94c7676 SHA512 d53e13c497569636fb453a159c5ca5ddfabf8e5debd5f92e5149c52d54c876753842ab73293d6d08e2d9b279363b4f0c743eed3a5027a61246c6b60496be8e87
diff --git a/sys-libs/libcxxabi/libcxxabi-19.0.0_pre20240712.ebuild b/sys-libs/libcxxabi/libcxxabi-19.0.0_pre20240712.ebuild
new file mode 100644
index 000000000000..903f8e866cb6
--- /dev/null
+++ b/sys-libs/libcxxabi/libcxxabi-19.0.0_pre20240712.ebuild
@@ -0,0 +1,110 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+inherit cmake-multilib flag-o-matic llvm.org llvm-utils python-any-r1
+inherit 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"
+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[${PYTHON_USEDEP}]"
+}
+
+multilib_src_configure() {
+	llvm_prepend_path "${LLVM_MAJOR}"
+
+	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="${EPREFIX}"/usr/include
+		# this is broken with standalone builds, and also meaningless
+		-DLIBCXXABI_USE_LLVM_UNWINDER=OFF
+
+		-DLIBCXX_LIBDIR_SUFFIX=
+		-DLIBCXX_ENABLE_SHARED=ON
+		-DLIBCXX_ENABLE_STATIC=OFF
+		-DLIBCXX_CXX_ABI=libcxxabi
+		-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
+		-DLIBCXX_HAS_MUSL_LIBC=$(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 fad908a4f8b2..df3285e1cc61 100644
--- a/sys-libs/libomp/Manifest
+++ b/sys-libs/libomp/Manifest
@@ -8,10 +8,12 @@ DIST llvm-project-17.0.6.src.tar.xz 127838860 BLAKE2B d6ede1a9fda8756995c3e06541
 DIST llvm-project-17.0.6.src.tar.xz.sig 438 BLAKE2B 186e75b6a0fbfe1e85408589c149e1800fcc47d685b74e4260018e05cd08bc793d1d1197c9c50e177eea941a3d0c65cb0c583ce6dae449099b920adf8a508ef7 SHA512 f78c55053a6450625f3e95f52c305110b4468a9854fec75831b65b8d6ceee3c9206ab9e63c4b5fda8be9bd344f72cfbdaae0520ed240abd505e08ebeaa25d340
 DIST llvm-project-18.1.8.src.tar.xz 132067260 BLAKE2B a950492f1dbfb874dff63b1ffef86468169ba2f211a9733ec2d4cf30040f7f277ef00f048bb44dee9f97d7d762f0f241f19e5a2a7b0b49217d3821ddfc8c354f SHA512 25eeee9984c8b4d0fbc240df90f33cbb000d3b0414baff5c8982beafcc5e59e7ef18f6f85d95b3a5f60cb3d4cd4f877c80487b5768bc21bc833f107698ad93db
 DIST llvm-project-18.1.8.src.tar.xz.sig 566 BLAKE2B 6ab0efc5b38d4483f4e32e8b85774b2edd5d88fdf29f23b88eb0b5130a7a7f0e80549612b025f927e92de4a08ff7c292cff224dbda91a5d598244e98f7ad0fbd SHA512 ddfd1e8a06756759af6cbe488c82a6d6a62ba91f3e8a0eb4cece561321824f5d165b08ed91010588790b76e19790931d2651b24dba8567e3b151d3cb43bec25b
+DIST llvm-project-1bad7024561bc64ed4bfda0772b16376b475eba5.tar.gz 216657623 BLAKE2B 99c48a95c427e8fae5568e5f59ab9bec8b2d8bec0c5d3cf453c261a738fe1c295b34e2e10e6b08d2b02cae43e3b0cd4c8eb025d19a83ee51f47a49afadd56d3f SHA512 08fc904122ab346edbfc3903cafae4f50ba57e146b2d821a568f8378c0f3ab4d413e07c5df2bf061374f9db4634b5f6b27f204fc4f2f68984303ceec9c963c0c
 EBUILD libomp-15.0.7-r6.ebuild 3470 BLAKE2B 9f76ca5b080ccf01617d7dcbfe3eb424c525adbcf72f2b5f09dc7bead1e28df1a0ffdf5ef47bcc7f8cac130f1d22e804e29938cda6df0ee58359ac5ff88aea86 SHA512 1a0a4b10f9a67634ea265e6df3c3f9993ed5ee3818eba2cbb6b65d8f5c3a0d2d266134f3e276985e87eca18b47a44d6de61e4c9c3496fd36c6c338dcf79b9850
 EBUILD libomp-16.0.6.ebuild 3984 BLAKE2B 8302d2776c0d8c50dcc7cac2dde8523f1abdf391d48594fdd26ebe17a089efdfee93825bdec07569878d06873b571e469411f108564df6c7eb50dc425615c255 SHA512 714da170fba4b62f3267e2530a82c583d299e8dc6c6f4037417c216c1239cc0fadc1aebf823608df37a932a7722144e67a148b58079e50560450b94c93f3e415
 EBUILD libomp-17.0.6.ebuild 4052 BLAKE2B 8a05a46719120eac5495417fb6ea54b7a6a3d93aa7cc0917ca9e8f3cb2238f23348ecaefebd4c2064eac4adfbd4ef7f86b70c051cbcc009692ec790159d8883d SHA512 80b48f5a3af351ee14296aa76ba28b964eb85d84a1827af8acd35076895342a5dd743362c988e042c57f11dc9e8bbca1a9003a6752562758249062e460c73247
 EBUILD libomp-18.1.8.ebuild 4287 BLAKE2B 65c6e04062bbf04d9655f226a97ecb10af4f2496295a770112059ab5ad3c74738e356c93a531abf20a171e8c89e8d8fdbcbdf6f8d15d6da5bfabce0147e1cbd3 SHA512 6abaa6531de18562248222d6393f48f88bde950a84051747a66b9c2f9c907315e403b050437d7263f227d564ca550f54db5ae5605a738fb8cd63bc2557814137
 EBUILD libomp-19.0.0.9999.ebuild 2163 BLAKE2B 522f4f9099cf7ca69f3bd2d93f1bfa0f80fd1937d8147b0464d3bcb143b161cf5b17b8e2fc80a981188a1962a3dc1396979dd726028f546ccb10b56265405415 SHA512 5ae5744e3addc95f790c15e1d89d3da4080ea0216518ece8097ac21a71432892d920722618ea3589f7bf4f70c505b5be37fa9b8c49683fd2307988b4425e7bea
 EBUILD libomp-19.0.0_pre20240706.ebuild 2163 BLAKE2B 522f4f9099cf7ca69f3bd2d93f1bfa0f80fd1937d8147b0464d3bcb143b161cf5b17b8e2fc80a981188a1962a3dc1396979dd726028f546ccb10b56265405415 SHA512 5ae5744e3addc95f790c15e1d89d3da4080ea0216518ece8097ac21a71432892d920722618ea3589f7bf4f70c505b5be37fa9b8c49683fd2307988b4425e7bea
+EBUILD libomp-19.0.0_pre20240712.ebuild 2163 BLAKE2B 522f4f9099cf7ca69f3bd2d93f1bfa0f80fd1937d8147b0464d3bcb143b161cf5b17b8e2fc80a981188a1962a3dc1396979dd726028f546ccb10b56265405415 SHA512 5ae5744e3addc95f790c15e1d89d3da4080ea0216518ece8097ac21a71432892d920722618ea3589f7bf4f70c505b5be37fa9b8c49683fd2307988b4425e7bea
 MISC metadata.xml 883 BLAKE2B 127e896b82a49633a6866b33ca776ebe2dd149a5d04da4484a53186f219a85db0ab9d826bc1cc61d4df9fa54c9bcc546be070a0b28985174925fd947aa09cca2 SHA512 dc32cae01401feb93eede6506b3955c766ff19b44976fcc67277559b23ac151993377daeed9ba83b2dd71dbdeea330cd1208dcb0c9c5f56be270883b31f9b15f
diff --git a/sys-libs/libomp/libomp-19.0.0_pre20240712.ebuild b/sys-libs/libomp/libomp-19.0.0_pre20240712.ebuild
new file mode 100644
index 000000000000..32b91b3699c4
--- /dev/null
+++ b/sys-libs/libomp/libomp-19.0.0_pre20240712.ebuild
@@ -0,0 +1,88 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+inherit flag-o-matic cmake-multilib linux-info llvm.org python-single-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}"
+IUSE="+debug gdb-plugin hwloc ompt test"
+REQUIRED_USE="
+	gdb-plugin? ( ${PYTHON_REQUIRED_USE} )
+"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+	gdb-plugin? ( ${PYTHON_DEPS} )
+	hwloc? ( >=sys-apps/hwloc-2.5:0=[${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
+	test? (
+		${PYTHON_DEPS}
+		$(python_gen_cond_dep '
+			dev-python/lit[${PYTHON_USEDEP}]
+		')
+		sys-devel/clang
+	)
+"
+
+LLVM_COMPONENTS=( openmp cmake llvm/include )
+llvm.org_set_globals
+
+pkg_setup() {
+	if use gdb-plugin || use test; then
+		python-single-r1_pkg_setup
+	fi
+}
+
+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_OMPD_GDB_SUPPORT=$(multilib_native_usex gdb-plugin)
+		-DLIBOMP_OMPT_SUPPORT=$(usex ompt)
+
+		# do not install libgomp.so & libiomp5.so aliases
+		-DLIBOMP_INSTALL_ALIASES=OFF
+		# disable unnecessary hack copying stuff back to srcdir
+		-DLIBOMP_COPY_EXPORTS=OFF
+	)
+
+	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++")"
+	)
+	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 6ae0f2797e7d..883e8b74c546 100644
--- a/sys-libs/llvm-libunwind/Manifest
+++ b/sys-libs/llvm-libunwind/Manifest
@@ -7,10 +7,12 @@ DIST llvm-project-17.0.6.src.tar.xz 127838860 BLAKE2B d6ede1a9fda8756995c3e06541
 DIST llvm-project-17.0.6.src.tar.xz.sig 438 BLAKE2B 186e75b6a0fbfe1e85408589c149e1800fcc47d685b74e4260018e05cd08bc793d1d1197c9c50e177eea941a3d0c65cb0c583ce6dae449099b920adf8a508ef7 SHA512 f78c55053a6450625f3e95f52c305110b4468a9854fec75831b65b8d6ceee3c9206ab9e63c4b5fda8be9bd344f72cfbdaae0520ed240abd505e08ebeaa25d340
 DIST llvm-project-18.1.8.src.tar.xz 132067260 BLAKE2B a950492f1dbfb874dff63b1ffef86468169ba2f211a9733ec2d4cf30040f7f277ef00f048bb44dee9f97d7d762f0f241f19e5a2a7b0b49217d3821ddfc8c354f SHA512 25eeee9984c8b4d0fbc240df90f33cbb000d3b0414baff5c8982beafcc5e59e7ef18f6f85d95b3a5f60cb3d4cd4f877c80487b5768bc21bc833f107698ad93db
 DIST llvm-project-18.1.8.src.tar.xz.sig 566 BLAKE2B 6ab0efc5b38d4483f4e32e8b85774b2edd5d88fdf29f23b88eb0b5130a7a7f0e80549612b025f927e92de4a08ff7c292cff224dbda91a5d598244e98f7ad0fbd SHA512 ddfd1e8a06756759af6cbe488c82a6d6a62ba91f3e8a0eb4cece561321824f5d165b08ed91010588790b76e19790931d2651b24dba8567e3b151d3cb43bec25b
+DIST llvm-project-1bad7024561bc64ed4bfda0772b16376b475eba5.tar.gz 216657623 BLAKE2B 99c48a95c427e8fae5568e5f59ab9bec8b2d8bec0c5d3cf453c261a738fe1c295b34e2e10e6b08d2b02cae43e3b0cd4c8eb025d19a83ee51f47a49afadd56d3f SHA512 08fc904122ab346edbfc3903cafae4f50ba57e146b2d821a568f8378c0f3ab4d413e07c5df2bf061374f9db4634b5f6b27f204fc4f2f68984303ceec9c963c0c
 EBUILD llvm-libunwind-15.0.7.ebuild 3032 BLAKE2B 9b47e894db1a764f3eca3135f4caba68261953f4433af017b7bb53181e345ad26c570733f997022c53c9ef49a0a3b823188d92cfcc16a2113825d767b1ffab2a SHA512 0b68480fb2a8e5a351574e81fbcff824cd324754ed40378f06fec12fedbba94a921043d72db6ecc37f8b0680b7f518bbbd8d63f69ce8d84f86ca522653d293fb
 EBUILD llvm-libunwind-16.0.6-r1.ebuild 3440 BLAKE2B eafe21a3de172043ca0039ba27c80c64d32b02cc86bdb5a6d108ded35770e0352216337cbf24ee4fde43b699a68a85c8145be2d17510d525452bfd5a02674998 SHA512 164fdc1c62405e02c035af7997b8522b51f5b9337d2bb66d7fc9b1f45df74ec70d31b26dc5324c59792d32c543fe18abf74ed3b07a64c131e3c1bb4f9f733c5d
 EBUILD llvm-libunwind-17.0.6.ebuild 3440 BLAKE2B eafe21a3de172043ca0039ba27c80c64d32b02cc86bdb5a6d108ded35770e0352216337cbf24ee4fde43b699a68a85c8145be2d17510d525452bfd5a02674998 SHA512 164fdc1c62405e02c035af7997b8522b51f5b9337d2bb66d7fc9b1f45df74ec70d31b26dc5324c59792d32c543fe18abf74ed3b07a64c131e3c1bb4f9f733c5d
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 EBUILD llvm-libunwind-19.0.0.9999.ebuild 3316 BLAKE2B bd35bebb24f85df1df172da2753279735077353c2a2b06df35700ad58b32fecdb29f6045be9d3c51316e764bda2a75295fb879fd635da71747ad0ab11dc5649d SHA512 8211878d4fde53625702b27cce8bf7a09cf97238c52e1078f6895b58675f76c78aa60f8a886a2f25d0cf71becdcefd94e8666b9c8915fecbe5b47accdc9b988a
 EBUILD llvm-libunwind-19.0.0_pre20240706.ebuild 3316 BLAKE2B bd35bebb24f85df1df172da2753279735077353c2a2b06df35700ad58b32fecdb29f6045be9d3c51316e764bda2a75295fb879fd635da71747ad0ab11dc5649d SHA512 8211878d4fde53625702b27cce8bf7a09cf97238c52e1078f6895b58675f76c78aa60f8a886a2f25d0cf71becdcefd94e8666b9c8915fecbe5b47accdc9b988a
+EBUILD llvm-libunwind-19.0.0_pre20240712.ebuild 3316 BLAKE2B bd35bebb24f85df1df172da2753279735077353c2a2b06df35700ad58b32fecdb29f6045be9d3c51316e764bda2a75295fb879fd635da71747ad0ab11dc5649d SHA512 8211878d4fde53625702b27cce8bf7a09cf97238c52e1078f6895b58675f76c78aa60f8a886a2f25d0cf71becdcefd94e8666b9c8915fecbe5b47accdc9b988a
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diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-19.0.0_pre20240712.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-19.0.0_pre20240712.ebuild
new file mode 100644
index 000000000000..e4c76c15ebc8
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-19.0.0_pre20240712.ebuild
@@ -0,0 +1,128 @@
+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{10..13} )
+inherit cmake-multilib flag-o-matic llvm.org llvm-utils python-any-r1
+inherit 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"
+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[${PYTHON_USEDEP}]"
+}
+
+multilib_src_configure() {
+	llvm_prepend_path "${LLVM_MAJOR}"
+
+	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
+	[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+	# Respect upstream build type assumptions (bug #910436) where they do:
+	# -DLIBUNWIND_ENABLE_ASSERTIONS=ON =>
+	#       -DCMAKE_BUILD_TYPE=DEBUG  => -UNDEBUG
+	#       -DCMAKE_BUILD_TYPE!=debug => -DNDEBUG
+	# -DLIBUNWIND_ENABLE_ASSERTIONS=OFF =>
+	#       -UNDEBUG
+	# See also https://github.com/llvm/llvm-project/issues/86#issuecomment-1649668826.
+	use debug || append-cppflags -DNDEBUG
+
+	local mycmakeargs=(
+		-DCMAKE_CXX_COMPILER_TARGET="${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
+}