commit:     a0ba16ac18a3aa7cd270d3bca4c1fe8601825cf7
Author:     Michał Górny <mgorny <AT> gentoo <DOT> org>
AuthorDate: Tue Oct 21 10:56:29 2025 +0000
Commit:     Michał Górny <mgorny <AT> gentoo <DOT> org>
CommitDate: Tue Oct 21 18:41:45 2025 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=a0ba16ac

llvm-runtimes/libunwind: Add 21.1.4

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

 llvm-runtimes/libunwind/Manifest                |   2 +
 llvm-runtimes/libunwind/libunwind-21.1.4.ebuild | 194 ++++++++++++++++++++++++
 2 files changed, 196 insertions(+)

diff --git a/llvm-runtimes/libunwind/Manifest b/llvm-runtimes/libunwind/Manifest
index 0a27b50f01b5..006c05ea3c64 100644
--- a/llvm-runtimes/libunwind/Manifest
+++ b/llvm-runtimes/libunwind/Manifest
@@ -14,6 +14,8 @@ DIST llvm-project-21.1.2.src.tar.xz 158926856 BLAKE2B 
1b5684586297ad637c6da09768
 DIST llvm-project-21.1.2.src.tar.xz.sig 566 BLAKE2B 
6209caf851c681e6f63ed1bd9589ac139c104d6ee21f463aacda472e30a847c32f3bd74a04208af05bb6203d8fa31bdc0028c0e72736a3037940e75eda615415
 SHA512 
dd8aa57451752a9207c276117a4b8a86f41263ea3ccc4fa198cd40d6fec79acd0ba126c4b84a1acbb52bbb2bce029fbc336deac8131be94747dd04e4a0f69331
 DIST llvm-project-21.1.3.src.tar.xz 158943752 BLAKE2B 
ad9ee083584cb72fea3722feb518f6c933c3a34ba91b1ca8b724f461aa744475a783512dd6f0ab60d533c73b37e42b32a06f905d4869f770a68180649656df44
 SHA512 
d3058e7c18ada2a6a6192c7e75970406520e0d2ba390dba3b89e99f05959198fd2976d38c200f8e6af37fb569d866b6367bf6e0e249fe4b340dfab74499e5723
 DIST llvm-project-21.1.3.src.tar.xz.sig 119 BLAKE2B 
675873fb6ce9a6b682d0ecdc5ec6ca8691d7f8f6bc72e6039a90c21f99d753a4b595f06676f9b5c1a23ebce872320cc67bd1687e8324f163ecbc4f22032bdf52
 SHA512 
d218a4071451e32a77890dd2e7de7a3b8a310ca85c7e6d90b88d85bad128979cf6866c9d772b880b50da2ec117832e77ba162049478c1deb7b0299cae008151a
+DIST llvm-project-21.1.4.src.tar.xz 158939036 BLAKE2B 
b87eff4e3cb881d86aafcfdb46d85344ad6ae92d5c1e72c05282f375b4b11844756d0e6b4d0da5e522a348170a5da9842917737e272b758d8dde7e1fb2bee135
 SHA512 
a8c0883abe7c5a3e55ca7ed0fd974fae4351184a0b0df18295a982ca8ddb0f8d167353564204ed00f0cd9a1d8baef7074c0b39a99e0b5c52ced6bbee73dde3da
+DIST llvm-project-21.1.4.src.tar.xz.sig 119 BLAKE2B 
c74a56448ad3e325234fcbe7d62ea888831e1e7696afb5aa5a185ea76a0880abe2d755f9e69a07760bbf9380534c3bb96c920ed6359ffd0f5f51c962d1494dcf
 SHA512 
4812c2e3861aa3b726d842c3ca259b19ef1aa531fed9f6f47099483de91de2b2a165f40d243f6f40f2eea749741d5f8b7090f394399c56db02053f308921077a
 DIST llvm-project-6a0e5b2fd7c340a872ae1e011cfb9de0d188feba.tar.gz 249848364 
BLAKE2B 
5d8eadfd43e1a131d7c061968c7d306b0537c0983c9366973d5b8d1bab4b384d1319604e12f097e235e077aefcd8b9c8395c3e16b53612f9f06fb11ba358aad6
 SHA512 
d931218ca1dafab09525f862f4b993cb6dde2f8738092e84b87542318d05c81fd41499098833f8629501c19f4fa741a35fc6447631f1c8830b2bb0b2cb64cc43
 DIST llvm-project-89ed5255b9ee88119e409a6d986eb1ad0e8f08e3.tar.gz 248431210 
BLAKE2B 
b98dfe5ae46190a5a2460c965f0ec51d2f65a9d1d14f82afa19a10f00a2c29520c52309ee66d71efed6361aa675abcc9bd1b5e61e1c3b1aa9bac4984050c2bc2
 SHA512 
f860f529f4eb67f4a5875d9931accae2f48b88486dd6715a2ca2add7d5aa1541a30e323612394162e65597054d61a879a9ba94e4dbf417c3fb5f8ff069c2d924
 DIST llvm-project-b1e29ec3b73b9dd06656c7e30ace597ff72cde70.tar.gz 248630276 
BLAKE2B 
ea1532ba05661de37f3d6bac6643f2f3000710f4c4b8c508c9b980da64964e60cd46d0b8e18d666b75089f8ad8e2f653ac6098b4054ce8adf7cb0c36220cdf29
 SHA512 
36471abffd9202c637aa89c53072f0f286beffad2d3908ad50bb4c395a1be0c8138ddcbd67e0c764f59842bcc6c6c31f04a14986c7145c369217a156885ac506

diff --git a/llvm-runtimes/libunwind/libunwind-21.1.4.ebuild 
b/llvm-runtimes/libunwind/libunwind-21.1.4.ebuild
new file mode 100644
index 000000000000..dfc694046f38
--- /dev/null
+++ b/llvm-runtimes/libunwind/libunwind-21.1.4.ebuild
@@ -0,0 +1,194 @@
+# 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-multilib crossdev flag-o-matic llvm.org llvm-utils
+inherit python-any-r1 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"
+KEYWORDS="~amd64 ~arm ~arm64 ~loong ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86 
~arm64-macos ~x64-macos"
+IUSE="+clang debug static-libs test"
+REQUIRED_USE="test? ( clang )"
+RESTRICT="!test? ( test )"
+
+RDEPEND="
+       !sys-libs/libunwind
+"
+DEPEND="
+       llvm-core/llvm:${LLVM_MAJOR}
+"
+BDEPEND="
+       clang? (
+               llvm-core/clang:${LLVM_MAJOR}
+               llvm-core/clang-linker-config:${LLVM_MAJOR}
+               llvm-runtimes/clang-rtlib-config:${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=( libc libcxxabi llvm/utils/llvm-lit )
+llvm.org_set_globals
+
+python_check_deps() {
+       use test || return 0
+       python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
+}
+
+test_compiler() {
+       target_is_not_host && return
+       local compiler=${1}
+       shift
+       ${compiler} ${CFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c - \
+               <<<'int main() { return 0; }' &>/dev/null
+}
+
+multilib_src_configure() {
+       if use clang; then
+               llvm_prepend_path -b "${LLVM_MAJOR}"
+       fi
+
+       local libdir=$(get_libdir)
+
+       # https://github.com/llvm/llvm-project/issues/56825
+       # also separately bug #863917
+       filter-lto
+
+       # Workaround for bgo #961153.
+       # TODO: Fix the multilib.eclass, so it sets CTARGET properly.
+       if ! is_crosspkg; then
+               export CTARGET=${CHOST}
+       fi
+
+       if use clang; then
+               local -x CC=${CTARGET}-clang-${LLVM_MAJOR}
+               local -x CXX=${CTARGET}-clang++-${LLVM_MAJOR}
+               strip-unsupported-flags
+
+               # The full clang configuration might not be ready yet. Use the 
partial
+               # configuration files that are guaranteed to exist even during 
initial
+               # installations and upgrades.
+               local flags=(
+                       
--config="${ESYSROOT}"/etc/clang/"${LLVM_MAJOR}"/gentoo-{rtlib,linker}.cfg
+               )
+               local -x CFLAGS="${CFLAGS} ${flags[@]}"
+               local -x CXXFLAGS="${CXXFLAGS} ${flags[@]}"
+               local -x LDFLAGS="${LDFLAGS} ${flags[@]}"
+       fi
+
+       # Check whether C compiler runtime is available.
+       if ! test_compiler "$(tc-getCC)"; then
+               local nolib_flags=( -nodefaultlibs -lc )
+               if test_compiler "$(tc-getCC)" "${nolib_flags[@]}"; then
+                       local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
+                       ewarn "${CC} seems to lack runtime, trying with 
${nolib_flags[*]}"
+               elif test_compiler "$(tc-getCC)" "${nolib_flags[@]}" 
-nostartfiles; then
+                       # Avoiding -nostartfiles earlier on for bug #862540,
+                       # and set available entry symbol for bug #862798.
+                       nolib_flags+=( -nostartfiles -e main )
+                       local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
+                       ewarn "${CC} seems to lack runtime, trying with 
${nolib_flags[*]}"
+               fi
+       fi
+       # Check whether C++ standard library is available,
+       local nostdlib_flags=( -nostdlib++ )
+       if ! test_compiler "$(tc-getCXX)" &&
+               test_compiler "$(tc-getCXX)" "${nostdlib_flags[@]}"
+       then
+               local -x LDFLAGS="${LDFLAGS} ${nostdlib_flags[*]}"
+               ewarn "${CXX} seems to lack runtime, trying with 
${nostdlib_flags[*]}"
+       fi
+
+       # link to compiler-rt
+       # https://github.com/gentoo/gentoo/pull/21516
+       local use_compiler_rt=OFF
+       [[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
+
+       # Respect upstream build type assumptions (bug #910436) where they do:
+       # -DLIBUNWIND_ENABLE_ASSERTIONS=ON =>
+       #       -DCMAKE_BUILD_TYPE=DEBUG  => -UNDEBUG
+       #       -DCMAKE_BUILD_TYPE!=debug => -DNDEBUG
+       # -DLIBUNWIND_ENABLE_ASSERTIONS=OFF =>
+       #       -UNDEBUG
+       # See also 
https://github.com/llvm/llvm-project/issues/86#issuecomment-1649668826.
+       use debug || append-cppflags -DNDEBUG
+
+       local mycmakeargs=(
+               -DLLVM_ROOT="${ESYSROOT}/usr/lib/llvm/${LLVM_MAJOR}"
+
+               -DCMAKE_C_COMPILER_TARGET="${CTARGET}"
+               -DCMAKE_CXX_COMPILER_TARGET="${CTARGET}"
+               -DPython3_EXECUTABLE="${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
+
+               # cross-unwinding increases unwinding footprint (to account
+               # for the worst case) and causes some breakage on AArch64
+               # https://github.com/llvm/llvm-project/issues/152549
+               -DLIBUNWIND_ENABLE_CROSS_UNWINDING=OFF
+
+               # avoid dependency on libgcc_s if compiler-rt is used
+               -DLIBUNWIND_USE_COMPILER_RT=${use_compiler_rt}
+       )
+       if is_crosspkg; then
+               mycmakeargs+=(
+                       # Without this, the compiler will compile a test program
+                       # and fail due to no builtins.
+                       -DCMAKE_C_COMPILER_WORKS=1
+                       -DCMAKE_CXX_COMPILER_WORKS=1
+                       # Install inside the cross sysroot.
+                       -DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/${CTARGET}/usr"
+               )
+       fi
+       if use test; then
+               mycmakeargs+=(
+                       -DLLVM_ENABLE_RUNTIMES="libunwind;libcxxabi;libcxx"
+                       -DLLVM_EXTERNAL_LIT="${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=$(llvm_cmake_use_musl)
+                       -DLIBCXX_HAS_GCC_S_LIB=OFF
+                       -DLIBCXX_INCLUDE_TESTS=OFF
+                       -DLIBCXX_INCLUDE_BENCHMARKS=OFF
+               )
+       fi
+
+       cmake_src_configure
+}
+
+multilib_src_test() {
+       local -x LIT_PRESERVES_TMP=1
+       cmake_build check-unwind
+}
+
+multilib_src_install() {
+       DESTDIR=${D} cmake_build install-unwind
+}

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