libcxx

libcxx mirror with random patches
git clone https://git.neptards.moe/neptards/libcxx.git
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macos-backdeployment.sh (6941B)


      1 #!/usr/bin/env bash
      2 
      3 set -ue
      4 
      5 function usage() {
      6   cat <<EOM
      7 $(basename ${0}) [-h|--help] --libcxx-root <LIBCXX-ROOT> --libcxxabi-root <LIBCXXABI-ROOT> --std <STD> --arch <ARCHITECTURE> --deployment-target <TARGET> --sdk-version <SDK-VERSION> [--lit-args <ARGS...>]
      8 
      9 This script is used to continually test the back-deployment use case of libc++ and libc++abi on MacOS.
     10 
     11   --libcxx-root       Full path to the root of the libc++ repository to test.
     12   --libcxxabi-root    Full path to the root of the libc++abi repository to test.
     13   --std               Version of the C++ Standard to run the tests under (c++03, c++11, etc..).
     14   --arch              Architecture to build the tests for (32, 64).
     15   --deployment-target The deployment target to run the tests for. This should be a version number of MacOS (e.g. 10.12). All MacOS versions until and including 10.7 are supported.
     16   --sdk-version       The version of the SDK to test with. This should be a version number of MacOS (e.g. 10.12). We'll link against the libc++ dylib in that SDK, but we'll run against the one on the given deployment target.
     17   [--lit-args]        Additional arguments to pass to lit (optional). If there are multiple arguments, quote them to pass them as a single argument to this script.
     18   [--no-cleanup]      Do not cleanup the temporary directory that was used for testing at the end. This can be useful to debug failures. Make sure to clean up manually after.
     19   [-h, --help]        Print this help.
     20 EOM
     21 }
     22 
     23 while [[ $# -gt 0 ]]; do
     24   case "$1" in
     25     --libcxx-root)
     26     LIBCXX_ROOT="${2}"
     27     if [[ ! -d "${LIBCXX_ROOT}" ]]; then
     28       echo "--libcxx-root '${LIBCXX_ROOT}' is not a valid directory"
     29       usage
     30       exit 1
     31     fi
     32     shift; shift
     33     ;;
     34     --libcxxabi-root)
     35     LIBCXXABI_ROOT="${2}"
     36     if [[ ! -d "${LIBCXXABI_ROOT}" ]]; then
     37       echo "--libcxxabi-root '${LIBCXXABI_ROOT}' is not a valid directory"
     38       usage
     39       exit 1
     40     fi
     41     shift; shift
     42     ;;
     43     --std)
     44     STD="${2}"
     45     shift; shift
     46     ;;
     47     --arch)
     48     ARCH="${2}"
     49     shift; shift
     50     ;;
     51     --deployment-target)
     52     DEPLOYMENT_TARGET="${2}"
     53     shift; shift
     54     ;;
     55     --sdk-version)
     56     MACOS_SDK_VERSION="${2}"
     57     shift; shift
     58     ;;
     59     --lit-args)
     60     ADDITIONAL_LIT_ARGS="${2}"
     61     shift; shift
     62     ;;
     63     --no-cleanup)
     64     NO_CLEANUP=""
     65     shift
     66     ;;
     67     -h|--help)
     68     usage
     69     exit 0
     70     ;;
     71     *)
     72     echo "${1} is not a supported argument"
     73     usage
     74     exit 1
     75     ;;
     76   esac
     77 done
     78 
     79 if [[ -z ${LIBCXX_ROOT+x} ]]; then echo "--libcxx-root is a required parameter"; usage; exit 1; fi
     80 if [[ -z ${LIBCXXABI_ROOT+x} ]]; then echo "--libcxxabi-root is a required parameter"; usage; exit 1; fi
     81 if [[ -z ${STD+x} ]]; then echo "--std is a required parameter"; usage; exit 1; fi
     82 if [[ -z ${ARCH+x} ]]; then echo "--arch is a required parameter"; usage; exit 1; fi
     83 if [[ -z ${DEPLOYMENT_TARGET+x} ]]; then echo "--deployment-target is a required parameter"; usage; exit 1; fi
     84 if [[ -z ${MACOS_SDK_VERSION+x} ]]; then echo "--sdk-version is a required parameter"; usage; exit 1; fi
     85 if [[ -z ${ADDITIONAL_LIT_ARGS+x} ]]; then ADDITIONAL_LIT_ARGS=""; fi
     86 
     87 
     88 TEMP_DIR="$(mktemp -d)"
     89 echo "Created temporary directory ${TEMP_DIR}"
     90 function cleanup {
     91   if [[ -z ${NO_CLEANUP+x} ]]; then
     92     echo "Removing temporary directory ${TEMP_DIR}"
     93     rm -rf "${TEMP_DIR}"
     94   else
     95     echo "Temporary directory is at '${TEMP_DIR}', make sure to clean it up yourself"
     96   fi
     97 }
     98 trap cleanup EXIT
     99 
    100 
    101 LLVM_ROOT="${TEMP_DIR}/llvm"
    102 LIBCXX_BUILD_DIR="${TEMP_DIR}/libcxx-build"
    103 LIBCXX_INSTALL_DIR="${TEMP_DIR}/libcxx-install"
    104 LIBCXXABI_BUILD_DIR="${TEMP_DIR}/libcxxabi-build"
    105 LIBCXXABI_INSTALL_DIR="${TEMP_DIR}/libcxxabi-install"
    106 
    107 PREVIOUS_DYLIBS_URL="http://lab.llvm.org:8080/roots/libcxx-roots.tar.gz"
    108 LLVM_TARBALL_URL="https://github.com/llvm-mirror/llvm/archive/master.tar.gz"
    109 export CC="$(xcrun --find clang)"
    110 export CXX="$(xcrun --find clang++)"
    111 
    112 
    113 echo "@@@ Downloading LLVM tarball of master (only used for CMake configuration) @@@"
    114 mkdir "${LLVM_ROOT}"
    115 curl -L "${LLVM_TARBALL_URL}" | tar -xz --strip-components=1 -C "${LLVM_ROOT}"
    116 echo "@@@@@@"
    117 
    118 
    119 echo "@@@ Configuring architecture-related stuff @@@"
    120 if [[ "${ARCH}" == "64" ]]; then CMAKE_ARCH_STRING="x86_64"; else CMAKE_ARCH_STRING="i386"; fi
    121 if [[ "${ARCH}" == "64" ]]; then LIT_ARCH_STRING="";         else LIT_ARCH_STRING="--param=enable_32bit=true"; fi
    122 echo "@@@@@@"
    123 
    124 
    125 echo "@@@ Configuring CMake for libc++ @@@"
    126 mkdir -p "${LIBCXX_BUILD_DIR}"
    127 (cd "${LIBCXX_BUILD_DIR}" &&
    128   xcrun cmake "${LIBCXX_ROOT}" -GNinja \
    129     -DLLVM_PATH="${LLVM_ROOT}" \
    130     -DCMAKE_INSTALL_PREFIX="${LIBCXX_INSTALL_DIR}" \
    131     -DCMAKE_OSX_ARCHITECTURES="${CMAKE_ARCH_STRING}"
    132 )
    133 echo "@@@@@@"
    134 
    135 
    136 echo "@@@ Configuring CMake for libc++abi @@@"
    137 mkdir -p "${LIBCXXABI_BUILD_DIR}"
    138 (cd "${LIBCXXABI_BUILD_DIR}" &&
    139   xcrun cmake "${LIBCXXABI_ROOT}" -GNinja \
    140     -DLIBCXXABI_LIBCXX_PATH="${LIBCXX_ROOT}" \
    141     -DLLVM_PATH="${LLVM_ROOT}" \
    142     -DCMAKE_INSTALL_PREFIX="${LIBCXXABI_INSTALL_DIR}" \
    143     -DCMAKE_OSX_ARCHITECTURES="${CMAKE_ARCH_STRING}"
    144 )
    145 echo "@@@@@@"
    146 
    147 
    148 echo "@@@ Installing the latest libc++ headers @@@"
    149 ninja -C "${LIBCXX_BUILD_DIR}" install-cxx-headers
    150 echo "@@@@@@"
    151 
    152 
    153 echo "@@@ Downloading dylibs for older deployment targets @@@"
    154 # TODO: The tarball should contain libc++abi.dylib too, we shouldn't be relying on the system's
    155 # TODO: We should also link against the libc++abi.dylib that was shipped in the SDK
    156 PREVIOUS_DYLIBS_DIR="${TEMP_DIR}/libcxx-dylibs"
    157 mkdir "${PREVIOUS_DYLIBS_DIR}"
    158 curl "${PREVIOUS_DYLIBS_URL}" | tar -xz --strip-components=1 -C "${PREVIOUS_DYLIBS_DIR}"
    159 LIBCXX_ON_DEPLOYMENT_TARGET="${PREVIOUS_DYLIBS_DIR}/macOS/${DEPLOYMENT_TARGET}/libc++.dylib"
    160 LIBCXXABI_ON_DEPLOYMENT_TARGET="/usr/lib/libc++abi.dylib"
    161 LIBCXX_IN_SDK="${PREVIOUS_DYLIBS_DIR}/macOS/${MACOS_SDK_VERSION}/libc++.dylib"
    162 echo "@@@@@@"
    163 
    164 
    165 # TODO: We need to also run the tests for libc++abi.
    166 # TODO: Make sure lit will actually run against the libc++abi we specified
    167 echo "@@@ Running tests for libc++ @@@"
    168 "${LIBCXX_BUILD_DIR}/bin/llvm-lit" -sv "${LIBCXX_ROOT}/test" \
    169                                    --param=enable_experimental=false \
    170                                    --param=enable_filesystem=false \
    171                                    ${LIT_ARCH_STRING} \
    172                                    --param=cxx_under_test="${CXX}" \
    173                                    --param=cxx_headers="${LIBCXX_INSTALL_DIR}/include/c++/v1" \
    174                                    --param=std="${STD}" \
    175                                    --param=platform="macosx${DEPLOYMENT_TARGET}" \
    176                                    --param=cxx_runtime_root="$(dirname "${LIBCXX_ON_DEPLOYMENT_TARGET}")" \
    177                                    --param=abi_library_path="$(dirname "${LIBCXXABI_ON_DEPLOYMENT_TARGET}")" \
    178                                    --param=use_system_cxx_lib="$(dirname "${LIBCXX_IN_SDK}")" \
    179                                    ${ADDITIONAL_LIT_ARGS}
    180 echo "@@@@@@"