llvm-runtimes/libgcc: Add 22.0.0_pre20250910 snapshot

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

2 files changed, 174 insertions, 0 deletions

diff --git a/llvm-runtimes/libgcc/Manifest b/llvm-runtimes/libgcc/Manifest
index 3413db208e4a..5bb4fa956e53 100644
--- a/llvm-runtimes/libgcc/Manifest
+++ b/llvm-runtimes/libgcc/Manifest
@@ -5,3 +5,4 @@ DIST llvm-project-20.1.8.src.tar.xz.sig 566 BLAKE2B 85beedfcff1195a974fab2c667b9
 DIST llvm-project-21.1.0.src.tar.xz 158971856 BLAKE2B ac8c3cc8d2c986abcaa523acc872b01311ec118a738654f9cc53a1d5fdba70ba10cfe829e23f3913557e460403ed6a2df81cb5e9a435c8e1ce08e7ead3511bf0 SHA512 1487dcdc041dd6cdcffa6cc95a565e18a9fce2a73215671e366a9601cecce6c8bf70065df5564de5998d1841c3d8d829a9fbd2cad72e3aab4db279e8885ff446
 DIST llvm-project-21.1.0.src.tar.xz.sig 438 BLAKE2B c5731350bc7454867da18887628c0e87bf404589097034c7ddfffbeec277b900bd1fa49daabd41d4f8800a8ab76105bf7e910a99dd970819ab987373d4ed4ed9 SHA512 c3cd0a759e22a24f4307d8747b7986f966f4fa3c413092efc73ccca252476f1b59878dc65b444884515bcce3d3bfab902f585cc1d08e2aeb55aa8e588128aeb6
 DIST llvm-project-645dd324d1b7d028745c2a4045b69e745df2ae6a.tar.gz 247443586 BLAKE2B dd3229c32768e42fd2f311638f1e63f5503fabee3fa414bc3300313b36bbfa062d90900319e4fdbbafae17947537fba699fe5940e1b6553a2d9a716c0ce7b59c SHA512 659dc22e2fd1fd0bced13f941127797dc7703b8d810eeb7a0fc51cf55c274e69e2d6660867c191d5d90615ddee3a1faff7f7cd357ff2eb88d715762be50098c3
+DIST llvm-project-f059d2bac034acca39ad60a1b13aaec6afa0a3d6.tar.gz 248627883 BLAKE2B e1603ba38fcf70e7f3794a30a42057d0052a422bd0aaf423c65d1fd8f9ec7d3981cd651f309dc3ab5c28183291241732373b9bdb75fc2a11fc8d9f238388b8c3 SHA512 63a1627a8b3cc8f240cefe2066d7e306cab5091317f97dd808b9ad887d4e6eb2d21af3f79bccfdb9387f5f7a5ed0b772013b0261a647c8d50ffaa55914362dfb
diff --git a/llvm-runtimes/libgcc/libgcc-22.0.0_pre20250910.ebuild b/llvm-runtimes/libgcc/libgcc-22.0.0_pre20250910.ebuild
new file mode 100644
index 000000000000..093c756cc032
--- /dev/null
+++ b/llvm-runtimes/libgcc/libgcc-22.0.0_pre20250910.ebuild
@@ -0,0 +1,173 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+PYTHON_COMPAT=( python3_{11..14} )
+
+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=${CTARGET} strip-unsupported-flags
+		# overrides host docs otherwise
+		DOCS=()
+	fi
+	python-any-r1_pkg_setup
+}
+
+src_configure() {
+	# We need to build a separate copy of compiler-rt, because we need to disable the
+	# COMPILER_RT_BUILTINS_HIDE_SYMBOLS option - compatibility with libgcc requires
+	# visibility of all symbols.
+
+	llvm_prepend_path -b "${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/${LLVM_MAJOR}"
+		-DLLVM_ROOT="${ESYSROOT}/usr/lib/llvm/${LLVM_MAJOR}"
+
+		-DCOMPILER_RT_INCLUDE_TESTS=$(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"
+}