sys-libs/llvm-libunwind/llvm-libunwind-8.0.1.ebuild

   1 # Copyright 1999-2020 Gentoo Authors
   2 # Distributed under the terms of the GNU General Public License v2
   3
   4 EAPI=6
   5
   6 : ${CMAKE_MAKEFILE_GENERATOR:=ninja}
   7 # (needed due to CMAKE_BUILD_TYPE != Gentoo)
   8 CMAKE_MIN_VERSION=3.7.0-r1
   9 PYTHON_COMPAT=( python{2_7,3_6} )
  10 inherit cmake-multilib llvm multiprocessing python-any-r1
  11
  12 MY_P=libunwind-${PV/_/}.src
  13 LIBCXX_P=libcxx-${PV/_/}.src
  14 LIBCXXABI_P=libcxxabi-${PV/_/}.src
  15
  16 DESCRIPTION="C++ runtime stack unwinder from LLVM"
  17 HOMEPAGE="https://github.com/llvm-mirror/libunwind"
  18 SRC_URI="https://github.com/llvm/llvm-project/releases/download/llvmorg-${PV}/${MY_P}.tar.xz
  19         test? (
  20                 https://github.com/llvm/llvm-project/releases/download/llvmorg-${PV}/${LIBCXX_P}.tar.xz
  21                 https://github.com/llvm/llvm-project/releases/download/llvmorg-${PV}/${LIBCXXABI_P}.tar.xz )"
  22
  23 LICENSE="|| ( UoI-NCSA MIT )"
  24 SLOT="0"
  25 KEYWORDS="amd64 arm arm64 x86"
  26 IUSE="debug +static-libs test"
  27 RESTRICT="!test? ( test )"
  28
  29 RDEPEND="!sys-libs/libunwind"
  30 # llvm-6 for new lit options
  31 DEPEND="
  32         >=sys-devel/llvm-6
  33         test? ( >=sys-devel/clang-3.9.0
  34                 $(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
  35
  36 S=${WORKDIR}/${MY_P}
  37
  38 # least intrusive of all
  39 CMAKE_BUILD_TYPE=RelWithDebInfo
  40
  41 python_check_deps() {
  42         has_version "dev-python/lit[${PYTHON_USEDEP}]"
  43 }
  44
  45 pkg_setup() {
  46         use test && python-any-r1_pkg_setup
  47 }
  48
  49 src_unpack() {
  50         default
  51
  52         if use test; then
  53                 mv "${LIBCXX_P}" libcxx || die
  54                 mv "${LIBCXXABI_P}" libcxxabi || die
  55         fi
  56 }
  57
  58 multilib_src_configure() {
  59         local libdir=$(get_libdir)
  60
  61         local mycmakeargs=(
  62                 -DLLVM_LIBDIR_SUFFIX=${libdir#lib}
  63                 -DLIBUNWIND_ENABLE_ASSERTIONS=$(usex debug)
  64                 -DLIBUNWIND_ENABLE_STATIC=$(usex static-libs)
  65                 -DLLVM_INCLUDE_TESTS=$(usex test)
  66
  67                 # support non-native unwinding; given it's small enough,
  68                 # enable it unconditionally
  69                 -DLIBUNWIND_ENABLE_CROSS_UNWINDING=ON
  70         )
  71         if use test; then
  72                 local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
  73                 local jobs=${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}
  74
  75                 [[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
  76
  77                 mycmakeargs+=(
  78                         -DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
  79                         -DLLVM_LIT_ARGS="-vv;-j;${jobs};--param=cxx_under_test=${clang_path}"
  80                         -DLIBUNWIND_LIBCXX_PATH="${WORKDIR}"/libcxx
  81                 )
  82         fi
  83
  84         cmake-utils_src_configure
  85 }
  86
  87 build_libcxxabi() {
  88         local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/$(get_libdir)"
  89         local CMAKE_USE_DIR=${WORKDIR}/libcxxabi
  90         local BUILD_DIR=${BUILD_DIR}/libcxxabi
  91         local mycmakeargs=(
  92                 -DLIBCXXABI_LIBDIR_SUFFIX=
  93                 -DLIBCXXABI_ENABLE_SHARED=ON
  94                 -DLIBCXXABI_ENABLE_STATIC=OFF
  95                 -DLIBCXXABI_USE_LLVM_UNWINDER=ON
  96                 -DLIBCXXABI_INCLUDE_TESTS=OFF
  97
  98                 -DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
  99                 -DLIBCXXABI_LIBUNWIND_INCLUDES="${S}"/include
 100         )
 101
 102         cmake-utils_src_configure
 103         cmake-utils_src_compile
 104 }
 105
 106 build_libcxx() {
 107         local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/libcxxabi/lib -L${BUILD_DIR}/$(get_libdir)"
 108         local CMAKE_USE_DIR=${WORKDIR}/libcxx
 109         local BUILD_DIR=${BUILD_DIR}/libcxx
 110         local mycmakeargs=(
 111                 -DLIBCXX_LIBDIR_SUFFIX=
 112                 -DLIBCXX_ENABLE_SHARED=ON
 113                 -DLIBCXX_ENABLE_STATIC=OFF
 114                 -DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
 115                 -DLIBCXXABI_USE_LLVM_UNWINDER=ON
 116                 -DLIBCXX_CXX_ABI=libcxxabi
 117                 -DLIBCXX_CXX_ABI_INCLUDE_PATHS="${WORKDIR}"/libcxxabi/include
 118                 -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
 119                 -DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
 120                 -DLIBCXX_HAS_GCC_S_LIB=OFF
 121                 -DLIBCXX_INCLUDE_TESTS=OFF
 122         )
 123
 124         cmake-utils_src_configure
 125         cmake-utils_src_compile
 126 }
 127
 128 multilib_src_test() {
 129         # build local copies of libc++ & libc++abi for testing to avoid
 130         # circular deps
 131         build_libcxxabi
 132         build_libcxx
 133         mv "${BUILD_DIR}"/libcxx*/lib/libc++* "${BUILD_DIR}/$(get_libdir)/" || die
 134
 135         cmake-utils_src_make check-unwind
 136 }
 137
 138 multilib_src_install() {
 139         cmake-utils_src_install
 140
 141         # install headers like sys-libs/libunwind
 142         doheader "${S}"/include/*.h
 143 }