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124 lines
3.0 KiB
124 lines
3.0 KiB
# Copyright 1999-2023 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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PYTHON_COMPAT=( python3_{9..11} )
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inherit cmake-multilib flag-o-matic llvm llvm.org python-any-r1 \
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toolchain-funcs
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DESCRIPTION="C++ runtime stack unwinder from LLVM"
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HOMEPAGE="https://llvm.org/docs/ExceptionHandling.html"
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LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
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SLOT="0"
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KEYWORDS="amd64 arm arm64 ~ppc ppc64 ~riscv sparc x86 ~x64-macos"
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IUSE="+clang debug static-libs test"
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REQUIRED_USE="test? ( clang )"
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RESTRICT="!test? ( test )"
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RDEPEND="
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!sys-libs/libunwind
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"
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DEPEND="
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sys-devel/llvm:${LLVM_MAJOR}
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"
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BDEPEND="
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clang? (
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sys-devel/clang:${LLVM_MAJOR}
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)
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!test? (
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${PYTHON_DEPS}
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)
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test? (
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$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]')
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)
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"
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LLVM_COMPONENTS=( runtimes libunwind libcxx llvm/cmake cmake )
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LLVM_TEST_COMPONENTS=( libcxxabi llvm/utils/llvm-lit )
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llvm.org_set_globals
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python_check_deps() {
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use test || return 0
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python_has_version "dev-python/lit[${PYTHON_USEDEP}]"
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}
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pkg_setup() {
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LLVM_MAX_SLOT=${LLVM_MAJOR} llvm_pkg_setup
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python-any-r1_pkg_setup
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}
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multilib_src_configure() {
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local libdir=$(get_libdir)
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# https://github.com/llvm/llvm-project/issues/56825
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# also separately bug #863917
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filter-lto
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if use clang; then
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local -x CC=${CHOST}-clang
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local -x CXX=${CHOST}-clang++
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strip-unsupported-flags
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fi
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# link to compiler-rt
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# https://github.com/gentoo/gentoo/pull/21516
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local use_compiler_rt=OFF
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[[ $(tc-get-c-rtlib) == compiler-rt ]] && use_compiler_rt=ON
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local mycmakeargs=(
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-DCMAKE_CXX_COMPILER_TARGET="${CHOST}"
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-DPython3_EXECUTABLE="${PYTHON}"
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-DLLVM_ENABLE_RUNTIMES="libunwind"
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-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
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-DLLVM_INCLUDE_TESTS=OFF
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-DLIBUNWIND_ENABLE_ASSERTIONS=$(usex debug)
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-DLIBUNWIND_ENABLE_STATIC=$(usex static-libs)
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-DLIBUNWIND_INCLUDE_TESTS=$(usex test)
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-DLIBUNWIND_INSTALL_HEADERS=ON
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# support non-native unwinding; given it's small enough,
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# enable it unconditionally
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-DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
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# avoid dependency on libgcc_s if compiler-rt is used
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-DLIBUNWIND_USE_COMPILER_RT=${use_compiler_rt}
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)
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if use test; then
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mycmakeargs+=(
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-DLLVM_ENABLE_RUNTIMES="libunwind;libcxxabi;libcxx"
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-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
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-DLLVM_LIT_ARGS="$(get_lit_flags)"
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-DLIBUNWIND_LIBCXX_PATH="${WORKDIR}/libcxx"
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-DLIBCXXABI_LIBDIR_SUFFIX=
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-DLIBCXXABI_ENABLE_SHARED=OFF
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-DLIBCXXABI_ENABLE_STATIC=ON
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-DLIBCXXABI_USE_LLVM_UNWINDER=ON
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-DLIBCXXABI_INCLUDE_TESTS=OFF
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-DLIBCXX_LIBDIR_SUFFIX=
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-DLIBCXX_ENABLE_SHARED=OFF
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-DLIBCXX_ENABLE_STATIC=ON
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-DLIBCXX_CXX_ABI=libcxxabi
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-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
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-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
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-DLIBCXX_HAS_GCC_S_LIB=OFF
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-DLIBCXX_INCLUDE_TESTS=OFF
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-DLIBCXX_INCLUDE_BENCHMARKS=OFF
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)
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fi
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cmake_src_configure
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}
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multilib_src_test() {
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local -x LIT_PRESERVES_TMP=1
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cmake_build check-unwind
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}
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multilib_src_install() {
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DESTDIR=${D} cmake_build install-unwind
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}
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