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[libc++/abi] Add scripts for building libc++ and libc++abi on Apple p…
…latforms These scripts allow creating dylibs that are very close to the dylibs shipped on Apple platforms.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| #!/usr/bin/env bash | ||
| #===----------------------------------------------------------------------===## | ||
| # | ||
| # Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| # See https://llvm.org/LICENSE.txt for license information. | ||
| # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| # | ||
| #===----------------------------------------------------------------------===## | ||
|
|
||
| set -e | ||
|
|
||
| PROGNAME="$(basename "${0}")" | ||
| function usage() { | ||
| cat <<EOF | ||
| Usage: | ||
| ${PROGNAME} [-h|--help] --llvm-root <DIR> --build-dir <DIR> --install-dir <DIR> --symbols-dir <DIR> --sdk <SDK> --architectures <architectures...> --version <X.Y.Z> --cache <PATH> | ||
| --llvm-root Full path to the root of the LLVM monorepo. Only the libcxx | ||
| and libcxxabi directories are required. | ||
| --build-dir Directory to use for building. This will contain intermediate | ||
| build products. | ||
| --install-dir Directory to install the library to. | ||
| --symbols-dir Directory to install the .dSYM bundle to. | ||
| --sdk SDK used for building the library. This represents the target | ||
| platform that the library will run on. You can get a list of | ||
| SDKs with \`xcodebuild -showsdks\`. | ||
| --architectures A whitespace separated list of architectures to build for. | ||
| The library will be built for each architecture independently, | ||
| and a universal binary containing all architectures will be | ||
| created from that. | ||
| --version The version of the library to encode in the dylib. | ||
| --cache The CMake cache to use to control how the library gets built. | ||
| EOF | ||
| } | ||
|
|
||
| while [[ $# -gt 0 ]]; do | ||
| case ${1} in | ||
| -h|--help) | ||
| usage | ||
| exit 0 | ||
| ;; | ||
| --llvm-root) | ||
| llvm_root="${2}" | ||
| shift; shift | ||
| ;; | ||
| --build-dir) | ||
| build_dir="${2}" | ||
| shift; shift | ||
| ;; | ||
| --symbols-dir) | ||
| symbols_dir="${2}" | ||
| shift; shift | ||
| ;; | ||
| --install-dir) | ||
| install_dir="${2}" | ||
| shift; shift | ||
| ;; | ||
| --sdk) | ||
| sdk="${2}" | ||
| shift; shift | ||
| ;; | ||
| --architectures) | ||
| architectures="" | ||
| shift | ||
| while [[ $# -gt 0 ]]; do | ||
| if [[ "${1}" == "-"* ]]; then | ||
| break | ||
| fi | ||
| architectures+=" ${1}" | ||
| shift | ||
| done | ||
| ;; | ||
| --version) | ||
| version="${2}" | ||
| shift; shift | ||
| ;; | ||
| --cache) | ||
| cache="${2}" | ||
| shift; shift | ||
| ;; | ||
| *) | ||
| echo "Unknown argument '${1}'" | ||
| exit 1 | ||
| ;; | ||
| esac | ||
| done | ||
|
|
||
| for arg in llvm_root build_dir symbols_dir install_dir sdk architectures version cache; do | ||
| if [ -z ${!arg+x} ]; then | ||
| echo "Missing required argument '--${arg//_/-}'" | ||
| exit 1 | ||
| elif [ "${!arg}" == "" ]; then | ||
| echo "Argument to --${arg//_/-} must not be empty" | ||
| exit 1 | ||
| fi | ||
| done | ||
|
|
||
| install_name_dir="/usr/lib" | ||
| dylib_name="libc++.1.dylib" | ||
| make_symlink="yes" | ||
|
|
||
| function step() { | ||
| separator="$(printf "%0.s-" $(seq 1 ${#1}))" | ||
| echo | ||
| echo "${separator}" | ||
| echo "${1}" | ||
| echo "${separator}" | ||
| } | ||
|
|
||
| for arch in ${architectures}; do | ||
| step "Building libc++.dylib for architecture ${arch}" | ||
| mkdir -p "${build_dir}/${arch}" | ||
| (cd "${build_dir}/${arch}" && | ||
| xcrun --sdk "${sdk}" cmake "${llvm_root}/libcxx" \ | ||
| -GNinja \ | ||
| -DCMAKE_MAKE_PROGRAM="$(xcrun --sdk "${sdk}" --find ninja)" \ | ||
| -C "${cache}" \ | ||
| -DCMAKE_INSTALL_PREFIX="${build_dir}/${arch}-install" \ | ||
| -DCMAKE_INSTALL_NAME_DIR="${install_name_dir}" \ | ||
| -DCMAKE_OSX_ARCHITECTURES="${arch}" \ | ||
| -DLIBCXX_INCLUDE_BENCHMARKS=OFF \ | ||
| -DLIBCXX_INCLUDE_TESTS=OFF | ||
| ) | ||
|
|
||
| xcrun --sdk "${sdk}" cmake --build "${build_dir}/${arch}" --target install-cxx -- -v | ||
| done | ||
|
|
||
| step "Creating a universal dylib from the dylibs for all architectures" | ||
| input_dylibs=$(for arch in ${architectures}; do | ||
| echo "${build_dir}/${arch}-install/lib/${dylib_name}" | ||
| done) | ||
| xcrun --sdk "${sdk}" lipo -create ${input_dylibs} -output "${build_dir}/${dylib_name}" | ||
|
|
||
| step "Installing the (stripped) universal dylib to ${install_dir}/usr/lib" | ||
| mkdir -p "${install_dir}/usr/lib" | ||
| cp "${build_dir}/${dylib_name}" "${install_dir}/usr/lib/${dylib_name}" | ||
| xcrun --sdk "${sdk}" strip -S "${install_dir}/usr/lib/${dylib_name}" | ||
| if [[ "${make_symlink}" == "yes" ]]; then | ||
| (cd "${install_dir}/usr/lib" && ln -s "${dylib_name}" libc++.dylib) | ||
| fi | ||
|
|
||
| step "Installing the unstripped dylib and the dSYM bundle to ${symbols_dir}" | ||
| xcrun --sdk "${sdk}" dsymutil "${build_dir}/${dylib_name}" -o "${symbols_dir}/${dylib_name}.dSYM" | ||
| cp "${build_dir}/${dylib_name}" "${symbols_dir}/${dylib_name}" | ||
|
|
||
| # | ||
| # Install the headers by copying the headers from one of the built architectures | ||
| # into the install directory. Headers from all architectures should be the same. | ||
| # | ||
| any_arch=$(echo ${architectures} | cut -d ' ' -f 1) | ||
| mkdir -p "${install_dir}/usr/include" | ||
| ditto "${build_dir}/${any_arch}-install/include" "${install_dir}/usr/include" |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,172 @@ | ||
| #!/usr/bin/env bash | ||
| #===----------------------------------------------------------------------===## | ||
| # | ||
| # Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
| # See https://llvm.org/LICENSE.txt for license information. | ||
| # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
| # | ||
| #===----------------------------------------------------------------------===## | ||
|
|
||
| set -e | ||
|
|
||
| PROGNAME="$(basename "${0}")" | ||
| function usage() { | ||
| cat <<EOF | ||
| Usage: | ||
| ${PROGNAME} [-h|--help] --llvm-root <DIR> --build-dir <DIR> --install-dir <DIR> --symbols-dir <DIR> --sdk <SDK> --architectures <architectures...> --version <X.Y.Z> --cache <PATH> | ||
| --llvm-root Full path to the root of the LLVM monorepo. Only the libcxx | ||
| and libcxxabi directories are required. | ||
| --build-dir Directory to use for building. This will contain intermediate | ||
| build products. | ||
| --install-dir Directory to install the library to. | ||
| --symbols-dir Directory to install the .dSYM bundle to. | ||
| --sdk SDK used for building the library. This represents the target | ||
| platform that the library will run on. You can get a list of | ||
| SDKs with \`xcodebuild -showsdks\`. | ||
| --architectures A whitespace separated list of architectures to build for. | ||
| The library will be built for each architecture independently, | ||
| and a universal binary containing all architectures will be | ||
| created from that. | ||
| --version The version of the library to encode in the dylib. | ||
| --cache The CMake cache to use to control how the library gets built. | ||
| EOF | ||
| } | ||
|
|
||
| while [[ $# -gt 0 ]]; do | ||
| case ${1} in | ||
| -h|--help) | ||
| usage | ||
| exit 0 | ||
| ;; | ||
| --llvm-root) | ||
| llvm_root="${2}" | ||
| shift; shift | ||
| ;; | ||
| --build-dir) | ||
| build_dir="${2}" | ||
| shift; shift | ||
| ;; | ||
| --symbols-dir) | ||
| symbols_dir="${2}" | ||
| shift; shift | ||
| ;; | ||
| --install-dir) | ||
| install_dir="${2}" | ||
| shift; shift | ||
| ;; | ||
| --sdk) | ||
| sdk="${2}" | ||
| shift; shift | ||
| ;; | ||
| --architectures) | ||
| architectures="" | ||
| shift | ||
| while [[ $# -gt 0 ]]; do | ||
| if [[ "${1}" == "-"* ]]; then | ||
| break | ||
| fi | ||
| architectures+=" ${1}" | ||
| shift | ||
| done | ||
| ;; | ||
| --version) | ||
| version="${2}" | ||
| shift; shift | ||
| ;; | ||
| --cache) | ||
| cache="${2}" | ||
| shift; shift | ||
| ;; | ||
| *) | ||
| echo "Unknown argument '${1}'" | ||
| exit 1 | ||
| ;; | ||
| esac | ||
| done | ||
|
|
||
| for arg in llvm_root build_dir symbols_dir install_dir sdk architectures version cache; do | ||
| if [ -z ${!arg+x} ]; then | ||
| echo "Missing required argument '--${arg//_/-}'" | ||
| exit 1 | ||
| elif [ "${!arg}" == "" ]; then | ||
| echo "Argument to --${arg//_/-} must not be empty" | ||
| exit 1 | ||
| fi | ||
| done | ||
|
|
||
| function step() { | ||
| separator="$(printf "%0.s-" $(seq 1 ${#1}))" | ||
| echo | ||
| echo "${separator}" | ||
| echo "${1}" | ||
| echo "${separator}" | ||
| } | ||
|
|
||
| install_name_dir="/usr/lib" | ||
| headers_prefix="${install_dir}" | ||
|
|
||
| for arch in ${architectures}; do | ||
| step "Building libc++abi.dylib for architecture ${arch}" | ||
| mkdir -p "${build_dir}/${arch}" | ||
| (cd "${build_dir}/${arch}" && | ||
| xcrun --sdk "${sdk}" cmake "${llvm_root}/libcxxabi" \ | ||
| -GNinja \ | ||
| -DCMAKE_MAKE_PROGRAM="$(xcrun --sdk "${sdk}" --find ninja)" \ | ||
| -C "${cache}" \ | ||
| -DCMAKE_INSTALL_PREFIX="${build_dir}/${arch}-install" \ | ||
| -DCMAKE_INSTALL_NAME_DIR="${install_name_dir}" \ | ||
| -DCMAKE_OSX_ARCHITECTURES="${arch}" \ | ||
| -DLIBCXXABI_LIBRARY_VERSION="${version}" \ | ||
| -DLIBCXXABI_LIBCXX_INCLUDES="$(xcrun --sdk "${sdk}" c++ -print-resource-dir)/../../../include/c++/v1" | ||
| ) | ||
|
|
||
| xcrun --sdk "${sdk}" cmake --build "${build_dir}/${arch}" --target install-cxxabi -- -v | ||
| done | ||
|
|
||
| all_dylibs=$(for arch in ${architectures}; do | ||
| echo "${build_dir}/${arch}-install/lib/libc++abi.dylib" | ||
| done) | ||
|
|
||
| all_archives=$(for arch in ${architectures}; do | ||
| echo "${build_dir}/${arch}-install/lib/libc++abi.a" | ||
| done) | ||
|
|
||
| step "Creating a universal dylib from the dylibs for each architecture at ${install_dir}/usr/lib" | ||
| xcrun --sdk "${sdk}" lipo -create ${all_dylibs} -output "${build_dir}/libc++abi.dylib" | ||
|
|
||
| step "Installing the (stripped) universal dylib to ${install_dir}/usr/lib" | ||
| mkdir -p "${install_dir}/usr/lib" | ||
| cp "${build_dir}/libc++abi.dylib" "${install_dir}/usr/lib/libc++abi.dylib" | ||
| xcrun --sdk "${sdk}" strip -S "${install_dir}/usr/lib/libc++abi.dylib" | ||
|
|
||
| step "Installing the unstripped dylib and the dSYM bundle to ${symbols_dir}" | ||
| xcrun --sdk "${sdk}" dsymutil "${build_dir}/libc++abi.dylib" -o "${symbols_dir}/libc++abi.dylib.dSYM" | ||
| cp "${build_dir}/libc++abi.dylib" "${symbols_dir}/libc++abi.dylib" | ||
|
|
||
| step "Creating a universal static archive from the static archives for each architecture" | ||
| mkdir -p "${install_dir}/usr/local/lib/libcxx" | ||
| xcrun --sdk "${sdk}" libtool -static ${all_archives} -o "${install_dir}/usr/local/lib/libcxx/libc++abi-static.a" | ||
|
|
||
| # | ||
| # Install the headers by copying the headers from the source directory into | ||
| # the install directory. | ||
| # TODO: In the future, we should install the headers through CMake. | ||
| # | ||
| step "Installing the libc++abi headers to ${headers_prefix}/usr/include" | ||
| mkdir -p "${headers_prefix}/usr/include" | ||
| ditto "${llvm_root}/libcxxabi/include" "${headers_prefix}/usr/include" | ||
| if [[ $EUID -eq 0 ]]; then # Only chown if we're running as root | ||
| chown -R root:wheel "${headers_prefix}/usr/include" | ||
| fi | ||
|
|
||
| step "Installing the libc++abi license" | ||
| mkdir -p "${headers_prefix}/usr/local/OpenSourceLicenses" | ||
| cp "${llvm_root}/libcxxabi/LICENSE.TXT" "${headers_prefix}/usr/local/OpenSourceLicenses/libcxxabi.txt" |