2 files changed, 174 insertions, 0 deletions
diff --git a/llvm-runtimes/libgcc/Manifest b/llvm-runtimes/libgcc/Manifest
index d32ea153f828..87bb4e7dcdde 100644
--- a/llvm-runtimes/libgcc/Manifest
+++ b/llvm-runtimes/libgcc/Manifest
@@ -1,5 +1,6 @@
 DIST llvm-project-19.1.7.src.tar.xz 141249332 BLAKE2B 1259ed7f9aca7b35e89d818befdee20fd8bed4d2dc2c2c6f6f56451fd43d35ac03a0a5a406e142d22b25137999dc5b17471c196f8fcf79f20a8296832d900f6d SHA512 c7d63286d662707a9cd54758c9e3aaf52794a91900c484c4a6efa62d90bc719d5e7a345e4192feeb0c9fd11c82570d64677c781e5be1d645556b6aa018e47ec8
 DIST llvm-project-19.1.7.src.tar.xz.sig 438 BLAKE2B 4015140f4ba77de45039bdbdfbaf6f30e75705123d067ea97175d91d7a5b6a75008df01d99ae7aa16aaa3b101f3f41e38d01f04158f95a261d617b3ede0254cd SHA512 195797b06ac80a742e0ccbc03a50dc06dd2e04377d783d5474e3e72c5a75203b60292b047929312a411d22b137a239943fba414a4d136a2be14cbff978eb6bda
+DIST llvm-project-1cf9f764ac41fb3492e10c78640dd50e616388db.tar.gz 230651433 BLAKE2B b71d459de99a741f9eb5809fcb44e6d9a17d3295bf11755d2b04a83fff6257eb4e5856826581c000e3b2868ff1cfb155ee18c692654f8083af04574d414c8fa2 SHA512 5b8d1e493830b7838b3ca76148dfc2e2af1cbaa660bd80958777698210c3347a1308f0725d40b10f8f12877daf99c4ba4837e4fa857a781ae912ee167369bafd
 DIST llvm-project-20.1.2.src.tar.xz 147229028 BLAKE2B 90be4c8b69d44bc3a295f3f63081f999cf35d05e9157ab104d403a5d5b6c3ff97b57a89598d2ec0413988f93a23f97f485b2216bbf0630cade754e9830246621 SHA512 c95e088e471d49c6692c8af1a7e40924467e4c269dada019c44455687c9f0e6a213b9b3ac8afa4e3d20cb3e757afc3400152e7cd06981aeebd61591cac15580d
 DIST llvm-project-20.1.2.src.tar.xz.sig 566 BLAKE2B fa4637cd41bddb0425567b17bcb0ba4800ec9a689897610febfba7f49f8218d6aff7bb8f7ecf6bb927397096ca49c0c1817b243e5ba7fc0ba51993ef532dadeb SHA512 d3f6a350ebd9884878442ea202f58328f8e85c30cfb150371e4af7fa8dc560bb421cd0f49f49e6bc95f57de6c06543633f0b2799aab9590750f440e099424e01
 DIST llvm-project-f3e6473df46fd920e09e06e57a5549eb8e3a8bd3.tar.gz 229893133 BLAKE2B 20a14a99fb55070c30b05298916875d7f7b5476bc47c72f675204adb62daf1126bc83f2e7e51867042cb0ea415f04ef32653118116d01f666a82dc888fb6e999 SHA512 f11eac15fc1d96232267d588fa1c41ebbff3367b1fccf1cfd43f3290f682b73ffa78f2336a2a155c41ef67cf4e6f43019b152996d790f03acf4b9b732a3cf4b7
@@ -10,4 +11,5 @@ EBUILD libgcc-20.1.2.ebuild 4571 BLAKE2B 96646eede20a4ea407f22eafe5e8b26632aad05
 EBUILD libgcc-21.0.0.9999.ebuild 4553 BLAKE2B 48481d0c499838276b0be90366c4ff19c0cf6f97fc2d35bf5eb4f794cd558f90cc8e9c9e1a673353626c40e266cc152c4548349b1636f6c34a0314d541d7349b SHA512 f0ba06884ab14ef4eb9d74a34665369bfcdadd246c050aef06c6a57c38d1bbae8f2b4fe35a11cb1a1711f3118cd965df9e10b77e912f92ab79c1fd071c75359f
 EBUILD libgcc-21.0.0_pre20250405.ebuild 4553 BLAKE2B 48481d0c499838276b0be90366c4ff19c0cf6f97fc2d35bf5eb4f794cd558f90cc8e9c9e1a673353626c40e266cc152c4548349b1636f6c34a0314d541d7349b SHA512 f0ba06884ab14ef4eb9d74a34665369bfcdadd246c050aef06c6a57c38d1bbae8f2b4fe35a11cb1a1711f3118cd965df9e10b77e912f92ab79c1fd071c75359f
 EBUILD libgcc-21.0.0_pre20250412.ebuild 4553 BLAKE2B 48481d0c499838276b0be90366c4ff19c0cf6f97fc2d35bf5eb4f794cd558f90cc8e9c9e1a673353626c40e266cc152c4548349b1636f6c34a0314d541d7349b SHA512 f0ba06884ab14ef4eb9d74a34665369bfcdadd246c050aef06c6a57c38d1bbae8f2b4fe35a11cb1a1711f3118cd965df9e10b77e912f92ab79c1fd071c75359f
+EBUILD libgcc-21.0.0_pre20250415.ebuild 4553 BLAKE2B 48481d0c499838276b0be90366c4ff19c0cf6f97fc2d35bf5eb4f794cd558f90cc8e9c9e1a673353626c40e266cc152c4548349b1636f6c34a0314d541d7349b SHA512 f0ba06884ab14ef4eb9d74a34665369bfcdadd246c050aef06c6a57c38d1bbae8f2b4fe35a11cb1a1711f3118cd965df9e10b77e912f92ab79c1fd071c75359f
 MISC metadata.xml 416 BLAKE2B 05a5a2fdfc857b5a522141deb8ee7f20f82773021ffc583cd869b129cf34fc809900ad90a01c049d5e108ca3fbf297208733ed0c49849b139e591afbdfa2a933 SHA512 866c5ea5585a8229eda9fdb4f6dba1453d3cff86083b51b115edc766aea7c02b4b306bd113b28cb5b3f2306951530ab0a2947681d0ffd1e6cee7b572d282f97d
diff --git a/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250415.ebuild b/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250415.ebuild
new file mode 100644
index 000000000000..2c2ae9d40376
--- /dev/null
+++ b/llvm-runtimes/libgcc/libgcc-21.0.0_pre20250415.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"
+}