2 files changed, 174 insertions, 0 deletions
diff --git a/llvm-runtimes/libgcc/Manifest b/llvm-runtimes/libgcc/Manifest
index 06ecfc04b937..ef1a1e704c40 100644
--- a/llvm-runtimes/libgcc/Manifest
+++ b/llvm-runtimes/libgcc/Manifest
@@ -3,9 +3,11 @@ DIST llvm-project-19.1.7.src.tar.xz.sig 438 BLAKE2B 4015140f4ba77de45039bdbdfbaf
 DIST llvm-project-20.1.0.src.tar.xz 147206476 BLAKE2B 8e8bd8aa995a84d17ac7d634098a6b72a47c30f1752029b620f4541a2de4039edf09117286094ae7bc59c4e84374dcffb8e5ee6ef5feaf4ea7ddb58dd04ea803 SHA512 c90fbc43c40e148357912adc40d799a79cce3d3a929136c137421f6342ed7338659e651f1dedfa8e10b94b9f2897e25b2962e17709add02857f89f10615a2397
 DIST llvm-project-20.1.0.src.tar.xz.sig 566 BLAKE2B 98979ce89f3fe6e95eef6096066cf855245a585608e7d1fddb5bbb2c73077f3ee28204260e18d7e45e3051daae3639520c39bc3d0dc51524873ac213e2511456 SHA512 68da1c2a13aaa48a67bbb9e716f9f030cf372edc651bca2861453378a6a9172a207ff59e29b175001f042888bf1f9c118fbf938f757e1f4c966943baa7e2696a
 DIST llvm-project-7e8a06cfa4a2951b8ee77e19e34926e6e535b4d1.tar.gz 228792296 BLAKE2B cd9357bdca9342770820f9fadfbd0b129a83324847f18e2ebac1fed8df4afb101aba2dc19d90264ae1e2d5692e34149ca24ef82a4973e7aeddb157268bb411b6 SHA512 9821a34a559e1db596940d76ce9388360baea43c1a9de814f567bfcf1428a0c6e3ced61b1e07537058454785d9c3aa3f443cbcf742a01fb40dd20b476a906442
+DIST llvm-project-cb7298f66d62a3548fcf3bd230304067ecf30d17.tar.gz 229200711 BLAKE2B 1910569812e7423cf566b0dec67269404ba8db8232ab293bc603a88914f2b756e3088bf2133c0fca612cc58d39691c7b813b3c5839a7ac9a3d177fe6bde766c6 SHA512 07c3f6ce34e7d32c5ebce1d2efb77e6a1dde49f9eedf7191733a20bdcb6ffd0c03f8fc8de85fd00bd9465b209f140639a68a367d2218c028bfa6e06067cc3e14
 EBUILD libgcc-19.1.7-r1.ebuild 4571 BLAKE2B 96646eede20a4ea407f22eafe5e8b26632aad0563293466ffcbdd5752a396fd667dfb200356e221d296681cd22ccf3cc263d275e28122b48338e206875ab161e SHA512 8392e31e1f3bb813b6a2565bd4d695139ff246be10163a7a451b364e1892d2026a25d42a717129b6488589882548d37dce809b340ebbbe7d47cc8404c7a34564
 EBUILD libgcc-19.1.7.ebuild 4045 BLAKE2B 0652485ecb35eb096883accd91d8ac571fdc06d32833d979b078139710357a9a8f2fdca2f39277691e116a8da0abeeed554418f403e865cb99387556e3de393a SHA512 d1de13cbc904e156f1e6f50c2afab045d92cc0fc99f943a935f161c9f6a0fc47811b322ec71858866e6767d0a634025cbd81519c34aa78bb5f72737b3790364e
 EBUILD libgcc-20.1.0.ebuild 4571 BLAKE2B 96646eede20a4ea407f22eafe5e8b26632aad0563293466ffcbdd5752a396fd667dfb200356e221d296681cd22ccf3cc263d275e28122b48338e206875ab161e SHA512 8392e31e1f3bb813b6a2565bd4d695139ff246be10163a7a451b364e1892d2026a25d42a717129b6488589882548d37dce809b340ebbbe7d47cc8404c7a34564
 EBUILD libgcc-21.0.0.9999.ebuild 4553 BLAKE2B 48481d0c499838276b0be90366c4ff19c0cf6f97fc2d35bf5eb4f794cd558f90cc8e9c9e1a673353626c40e266cc152c4548349b1636f6c34a0314d541d7349b SHA512 f0ba06884ab14ef4eb9d74a34665369bfcdadd246c050aef06c6a57c38d1bbae8f2b4fe35a11cb1a1711f3118cd965df9e10b77e912f92ab79c1fd071c75359f
 EBUILD libgcc-21.0.0_pre20250301.ebuild 4553 BLAKE2B 48481d0c499838276b0be90366c4ff19c0cf6f97fc2d35bf5eb4f794cd558f90cc8e9c9e1a673353626c40e266cc152c4548349b1636f6c34a0314d541d7349b SHA512 f0ba06884ab14ef4eb9d74a34665369bfcdadd246c050aef06c6a57c38d1bbae8f2b4fe35a11cb1a1711f3118cd965df9e10b77e912f92ab79c1fd071c75359f
+EBUILD libgcc-21.0.0_pre20250311.ebuild 4553 BLAKE2B 48481d0c499838276b0be90366c4ff19c0cf6f97fc2d35bf5eb4f794cd558f90cc8e9c9e1a673353626c40e266cc152c4548349b1636f6c34a0314d541d7349b SHA512 f0ba06884ab14ef4eb9d74a34665369bfcdadd246c050aef06c6a57c38d1bbae8f2b4fe35a11cb1a1711f3118cd965df9e10b77e912f92ab79c1fd071c75359f
 MISC metadata.xml 416 BLAKE2B 05a5a2fdfc857b5a522141deb8ee7f20f82773021ffc583cd869b129cf34fc809900ad90a01c049d5e108ca3fbf297208733ed0c49849b139e591afbdfa2a933 SHA512 866c5ea5585a8229eda9fdb4f6dba1453d3cff86083b51b115edc766aea7c02b4b306bd113b28cb5b3f2306951530ab0a2947681d0ffd1e6cee7b572d282f97d
diff --git a/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250311.ebuild b/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250311.ebuild
new file mode 100644
index 000000000000..2c2ae9d40376
--- /dev/null
+++ b/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250311.ebuild
@@ -0,0 +1,172 @@
+# Copyright 1999-2025 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, compatible with libgcc_s"
+HOMEPAGE="https://llvm.org/"
+
+LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
+SLOT="0"
+IUSE="debug test"
+
+DEPEND="
+	~llvm-runtimes/libunwind-${PV}[static-libs]
+"
+RDEPEND="
+	${DEPEND}
+	!sys-devel/gcc
+"
+BDEPEND="
+	llvm-core/clang:${LLVM_MAJOR}
+	test? (
+		$(python_gen_any_dep ">=dev-python/lit-15[\${PYTHON_USEDEP}]")
+		=llvm-core/clang-${LLVM_VERSION}*:${LLVM_MAJOR}
+	)
+	!test? (
+		${PYTHON_DEPS}
+	)
+"
+
+LLVM_COMPONENTS=( compiler-rt cmake llvm/cmake llvm-libgcc )
+LLVM_TEST_COMPONENTS=( llvm/include/llvm/TargetParser )
+llvm.org_set_globals
+
+python_check_deps() {
+	use test || return 0
+	python_has_version ">=dev-python/lit-15[${PYTHON_USEDEP}]"
+}
+
+pkg_setup() {
+	if target_is_not_host || tc-is-cross-compiler ; then
+		# strips vars like CFLAGS="-march=x86_64-v3" for non-x86 architectures
+		CHOST=${CTARGET} strip-unsupported-flags
+		# overrides host docs otherwise
+		DOCS=()
+	fi
+	python-any-r1_pkg_setup
+}
+
+src_configure() {
+	# We need to build a separate copy of compiler-rt, because we need to disable the
+	# COMPILER_RT_BUILTINS_HIDE_SYMBOLS option - compatibility with libgcc requires
+	# visibility of all symbols.
+
+	llvm_prepend_path "${LLVM_MAJOR}"
+
+	# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
+	use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
+
+	export CC=${CTARGET}-clang CXX=${CTARGET}-clang++
+	strip-unsupported-flags
+
+	local mycmakeargs=(
+		-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${LLVM_MAJOR}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
+		-DCOMPILER_RT_BUILD_CRT=OFF
+		-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
+
+		-DCOMPILER_RT_BUILTINS_HIDE_SYMBOLS=OFF
+
+		-DPython3_EXECUTABLE="${PYTHON}"
+	)
+
+	# disable building non-native runtimes since we don't do multilib
+	if use amd64; then
+		mycmakeargs+=(
+			-DCAN_TARGET_i386=OFF
+		)
+	fi
+
+	if use test; then
+		mycmakeargs+=(
+			-DLLVM_EXTERNAL_LIT="${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/${LLVM_MAJOR}/bin/clang++"
+		)
+	fi
+
+	cmake_src_configure
+}
+
+# Usage: deps
+gen_ldscript() {
+	local output_format
+	output_format=$($(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 ( $@ )
+END_LDSCRIPT
+}
+
+src_compile() {
+	cmake_src_compile
+
+	local rtlib=$(
+		"${CC}" -rtlib=compiler-rt -resource-dir="${BUILD_DIR}" \
+			-print-libgcc-file-name || die
+	)
+
+	# Use the llvm-libgcc's version script to produce libgcc.{a,so}, which
+	# combines compiler-rt and libunwind into a libgcc replacement.
+	#
+	# What we do here is similar to what upstream does[0], with the following
+	# differences:
+	#
+	# * We build the local copy of compiler-rt manually, to have a full control
+	#   over CMake options.
+	# * Upstream links the locally built copy of libunwind statically. We link the
+	#   system-wide libunwind dynamically.
+	#
+	# [0] https://github.com/llvm/llvm-project/blob/llvmorg-19.1.7/llvm-libgcc/CMakeLists.txt#L102-L120
+	"${CC}" -E -xc \
+		"${WORKDIR}/llvm-libgcc/gcc_s.ver.in" \
+		-o gcc_s.ver || die
+	"${CC}" -nostdlib \
+		${LDFLAGS} \
+		-Wl,--version-script,gcc_s.ver \
+		-Wl,--undefined-version \
+		-Wl,--whole-archive \
+		"${rtlib}" \
+		-Wl,-soname,libgcc_s.so.1.0 \
+		-lc -lunwind -shared \
+		-o libgcc_s.so.1.0 || die
+	# Generate libgcc_s.so ldscript for inclusion of libunwind as a
+	# dependency so that `clang -lgcc_s` works out of the box.
+	gen_ldscript libgcc_s.so.1.0 libunwind.so.1.0 > libgcc_s.so || die
+	cp "${rtlib}" libgcc.a || die
+}
+
+src_test() {
+	# respect TMPDIR!
+	local -x LIT_PRESERVES_TMP=1
+
+	cmake_build check-builtins
+}
+
+src_install() {
+	local libdir=$(get_libdir)
+	dolib.so libgcc_s.so.1.0 libgcc_s.so
+	dolib.a libgcc.a
+	dosym libgcc_s.so.1.0 "/usr/${libdir}/libgcc_s.so.1"
+	dosym libunwind.a "/usr/${libdir}/libgcc_eh.a"
+}