sys-libs/llvm-libunwind: Add 20.0.0_pre20241004 snapshot

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

2 files changed, 129 insertions, 0 deletions

diff --git a/sys-libs/llvm-libunwind/Manifest b/sys-libs/llvm-libunwind/Manifest
index a3185550d2bd..a212350e4e75 100644
--- a/sys-libs/llvm-libunwind/Manifest
+++ b/sys-libs/llvm-libunwind/Manifest
@@ -11,4 +11,5 @@ DIST llvm-project-19.1.0.src.tar.xz.sig 438 BLAKE2B b044fcc6f331e75f9340e390ef8a
 DIST llvm-project-19.1.1.src.tar.xz 141244648 BLAKE2B 7c9250f99c8e5ae2097e89269ebf5bfdfb0fba8f67ab934377d24030c985013fe5475d0c9bd6d60a679e169772ad1723bc6e44ff9e4c7aed5627b9f1f1a2477a SHA512 84adab40ffb9ec236dbf203d86c08a0c2c651f98278a9d0936490c7901159eb26eabd3db9316013886b549426d4acb43b75d866f7dc670ab299bf93ba35b1891
 DIST llvm-project-19.1.1.src.tar.xz.sig 438 BLAKE2B 6967194abf6939291abc716f862a46ea7c5e195b98eebc26928a57dbd5034f82a8ecb5b7cc1b7c2428168309308b19df1c7db828703e80d3f7bf578e3542874d SHA512 07bb7bffb2b035417d702ca47be9d5759250f1a2cd57606855027d458ceb972a293b45d3d93bcda195588986acbb5eace60524f4aecdc0da7aeb3a8414c37c31
 DIST llvm-project-41f1b467a29d2ca4e35df37c3aa79a0a8c04bc4f.tar.gz 218633363 BLAKE2B 9367923a4257e0ce01cf443eca790a567c6d9224126ebff15849c829f04dbac39aee60de1f28eab71ee4143341105c46466e1983e0f2a1a478e75fd5363a8d02 SHA512 eca094df135f184e2c3a42a3984ac353b7a8286446da80f042aef8047761f5f5cc6eeccb9bff6056ff0ddd1babe31a468e279b028b9618364f88ae9f26053c22
+DIST llvm-project-b837c9e289dab93c7f8a06876e3f70b6864f40ab.tar.gz 219631219 BLAKE2B d8a5d7de537ad91e94fc85dc0f624eba92f31cab2a345706250a66ad424fff151d5b86c430d993a35fd938095774411080cee4cab47a8258af348743dc145b56 SHA512 fe23f72b73553e3755af335a2a2a2225eafdcf2ed93191c9f4ac7bcf7b5b5391f73c2dccbb082279e0c7389a8f12b889a8d061389785cf9219ca861a8d4b41cc
 DIST llvm-project-cde7b30268a85a3e7900a31534a97e7eb4de9236.tar.gz 219048549 BLAKE2B 53bdfea814b2cdf60bfdd27f6135b9f9d5156bdc78d22a361214399c5101b6fafaaefb9109377c1d977c67ebcb1feed69d6aaee0f2e38881480d68ac8be9b3d9 SHA512 0def6da5c2443753f37ba40a893b41dd5c7676b7be57102a5a6e820fe4fe235cad1da9a1c0eff1abc4c4ed5cc188522cae23afeddeee1876ea8ffde5c4f33b9f
diff --git a/sys-libs/llvm-libunwind/llvm-libunwind-20.0.0_pre20241004.ebuild b/sys-libs/llvm-libunwind/llvm-libunwind-20.0.0_pre20241004.ebuild
new file mode 100644
index 000000000000..e4c76c15ebc8
--- /dev/null
+++ b/sys-libs/llvm-libunwind/llvm-libunwind-20.0.0_pre20241004.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
+}