diff options
Diffstat (limited to 'llvm-runtimes/libunwind/libunwind-21.1.7.ebuild')
| -rw-r--r-- | llvm-runtimes/libunwind/libunwind-21.1.7.ebuild | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/llvm-runtimes/libunwind/libunwind-21.1.7.ebuild b/llvm-runtimes/libunwind/libunwind-21.1.7.ebuild new file mode 100644 index 000000000000..dfc694046f38 --- /dev/null +++ b/llvm-runtimes/libunwind/libunwind-21.1.7.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 +} |