aarch64-unknown-linux-android28 Toolchain

Swift Toolchian for aarch64-unknown-linux-android28

Current support Swift version

5.10.1

How to install in macOS host

Firstly you need to install official swift version 5.10.1, download it from https://swift.org
Decompression file swift-5.10.1-runtime-aarch64-unknown-linux-android28.tar.gz into /Library/Developer/Runtimes/aarch64-unknown-linux-android28:

mkdir -p /Library/Developer/Runtimes/aarch64-unknown-linux-android28
tar xf swift-5.10.1-runtime-aarch64-unknown-linux-android28.tar.gz -C /Library/Developer/Runtimes/swift-5.10.1-runtime-aarch64-unknown-linux-android28

Generate destination json file:

cd Destinations
./generate_darwin.sh
# Enter runtime sdk install path: Library/Developer/Runtimes/swift-5.10.1-runtime-aarch64-unknown-linux-android28
# Enter the Swift compiler (swiftc) path: /path/to/offical/swift-5.10.1/swiftc
# Enter Enter the NDK(26d) installation path:

Copy generated destination json file:

mkdir -p /Library/Developer/Destinations
cp Destination/aarch64-android28-static.json /Library/Developer/Destinations
cp Destination/aarch64-android28.json /Library/Developer/Destinations

How to test in android target

You need to upload runtime libraries into you aarch64 android device.

adb push /Library/Developer/Runtimes/swift-5.10.1-runtime-aarch64-unknown-linux-android28/usr/lib/swift/android/*.so /data/local/tmp

# Then you can build an test executable app using:
swift build --destination /Library/Developer/Destinations/aarch64-android28.json
adb push .build/debug/<YourApp> /data/local/tmp

# Then run in your android device
adb shell
cd /data/local/tmp
LD_LIBRARY_PATH=. ./<YourApp>

Also, you can build static. With static building, you not need to copy android swift runtime so.

How to build App

Create an example project

swift package init --type executable
swift build --destination /Library/Developer/Destinations/aarch64-android28.json

Build Static

swift package init --type executable
swift build --destination /Library/Developer/Destinations/aarch64-android28-static.json --static-swift-stdlib

After building success, you can upload binary to you target device, and run it.

How to build swift for aarch64-unknown-linux-android28

Dependence

Build system: Ubuntu 22.04

Install packages for compile

Reference: https://github.com/apple/swift-docker/blob/main/swift-ci/master/ubuntu/22.04/Dockerfile

apt-get -y update && apt-get -y install \
  build-essential       \
  cmake                 \
  git                   \
  icu-devtools          \
  libcurl4-openssl-dev  \
  libedit-dev           \
  libicu-dev            \
  libncurses5-dev       \
  libpython3-dev        \
  libsqlite3-dev        \
  libxml2-dev           \
  ninja-build           \
  pkg-config            \
  python2               \
  python-six            \
  python2-dev           \
  python3-six           \
  python3-distutils     \
  python3-pkg-resources \
  python3-psutil        \
  rsync                 \
  swig                  \
  systemtap-sdt-dev     \
  tzdata                \
  uuid-dev              \
  zip

Prepare compile workspace

Create an empty folder, which is used as our compile workspace.

mkdir workspace
cd workspace
export WORKSPACE_SWIFT_AARCH64_ANDROID=`pwd`

Download NDK Toolchain

Be careful to the version of ndk, we need 26d

cd $WORKSPACE_SWIFT_AARCH64_ANDROID
wget https://dl.google.com/android/repository/android-ndk-r26d-linux.zip
unzip android-ndk-r26d-linux.zip

Download the same version of swift toolchain

For example, if we are compiling swift-5.10.1, we need to download offical version of swift-5.10.1.

cd $WORKSPACE_SWIFT_AARCH64_ANDROID
wget https://download.swift.org/swift-5.10.1-release/ubuntu2204/swift-5.10.1-RELEASE/swift-5.10.1-RELEASE-ubuntu22.04.tar.gz
tar xzf swift-5.10.1-RELEASE-ubuntu22.04.tar.gz

Download swift source code

cd $WORKSPACE_SWIFT_AARCH64_ANDROID
mkdir swift-project
cd swift-project
git clone https://github.com/apple/swift.git swift
cd swift
utils/update-checkout --clone --tag swift-5.10.1-RELEASE

Patch source code

Apply patch

using patch Patch/swift.patch

cd $WORKSPACE_SWIFT_AARCH64_ANDROID/swift-project/swift
git apply /patch/to/repo/aarch64-android28-swift/Patch/swift.patch

using patch Patch/swift-corelibs-foundation.patch

cd $WORKSPACE_SWIFT_AARCH64_ANDROID/swift-project/swift-corelibs-foundation.path
git apply /patch/to/repo/aarch64-android28-swift/Patch/swift-corelibs-foundation.path

Start build

Build Swift

cd $WORKSPACE_SWIFT_AARCH64_ANDROID/swift-project/swift
export NDK_PATH=$WORKSPACE_SWIFT_AARCH64_ANDROID/android-ndk-r26d
export SWIFT_PATH=$WORKSPACE_SWIFT_AARCH64_ANDROID/swift-5.10.1-RELEASE-ubuntu22.04/usr/bin
export INSTALL_PATH=$WORKSPACE_SWIFT_AARCH64_ANDROID/install
export PATH=$PATH:$SWIFT_PATH

utils/build-script --preset buildbot_linux_crosscompile_android,tools=RA,stdlib=RD,build,aarch64 \
	ndk_path=$NDK_PATH \
	toolchain_path=$SWIFT_PATH \
	install_destdir=$INSTALL_PATH \
	installable_package=$INSTALL_PATH/../aarch64-unknown-linux-android28-runtime.tar.gz

TODO: If build error you need to copy ndk libclang-rt.so info swift-linux-x86_64/lib/linux

Build libdispatch

Static

WORKSPACE_SWIFT_ANDROID=$WORKSPACE_SWIFT_AARCH64_ANDROID
NDK_PATH=$WORKSPACE_SWIFT_ANDROID/android-ndk-r26d
ABI="arm64-v8a"
INSTALL_DIR_PATH=$WORKSPACE_SWIFT_ANDROID/install
SWIFT_NATIVE_TOOLCHAIN_PATH=$WORKSPACE_SWIFT_ANDROID/swift-5.10.1-RELEASE-ubuntu22.04/usr/bin/
SWIFT_SOURCE_ROOT=$WORKSPACE_SWIFT_ANDROID/swift-project/
SWIFT_BUILD_PRODUCT_PATH=${SWIFT_SOURCE_ROOT}/build/buildbot_linux
NINJA_EXEC=$SWIFT_BUILD_PRODUCT_PATH/ninja-build/ninja

rm -rf $SWIFT_BUILD_PRODUCT_PATH/libdispatch-android-aarch64
mkdir -p $SWIFT_BUILD_PRODUCT_PATH/libdispatch-android-aarch64
cd $SWIFT_BUILD_PRODUCT_PATH/libdispatch-android-aarch64

cmake -G Ninja \
    -DCMAKE_TOOLCHAIN_FILE=$NDK_PATH/build/cmake/android.toolchain.cmake \
    -DANDROID_ABI=$ABI \
    -DANDROID_NDK=$NDK_PATH \
    -DANDROID_PLATFORM=android-28 \
    \
    -DCMAKE_MAKE_PROGRAM=$NINJA_EXEC \
    -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR_PATH}/usr \
    -DCMAKE_BUILD_TYPE=Release \
    -DBUILD_SHARED_LIBS=OFF \
    -DENABLE_SWIFT=ON \
    -DCMAKE_Swift_COMPILER="${SWIFT_NATIVE_TOOLCHAIN_PATH}/swiftc" \
    -DCMAKE_Swift_FLAGS="-target aarch64-unknown-linux-android28 -tools-directory ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/ -sdk ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/sysroot -resource-dir $SWIFT_BUILD_PRODUCT_PATH/swift-linux-x86_64/lib/swift" \
    ../../../swift-corelibs-libdispatch

$NINJA_EXEC -C .
$NINJA_EXEC -C . install

Dynamic

WORKSPACE_SWIFT_ANDROID=$WORKSPACE_SWIFT_AARCH64_ANDROID
NDK_PATH=$WORKSPACE_SWIFT_ANDROID/android-ndk-r26d
ABI="arm64-v8a"
INSTALL_DIR_PATH=$WORKSPACE_SWIFT_ANDROID/install
SWIFT_NATIVE_TOOLCHAIN_PATH=$WORKSPACE_SWIFT_ANDROID/swift-5.10.1-RELEASE-ubuntu22.04/usr/bin/
SWIFT_SOURCE_ROOT=$WORKSPACE_SWIFT_ANDROID/swift-project/
SWIFT_BUILD_PRODUCT_PATH=${SWIFT_SOURCE_ROOT}/build/buildbot_linux
NINJA_EXEC=$SWIFT_BUILD_PRODUCT_PATH/ninja-build/ninja

rm -rf $SWIFT_BUILD_PRODUCT_PATH/libdispatch-android-aarch64
mkdir -p $SWIFT_BUILD_PRODUCT_PATH/libdispatch-android-aarch64
cd $SWIFT_BUILD_PRODUCT_PATH/libdispatch-android-aarch64

cmake -G Ninja \
    -DCMAKE_TOOLCHAIN_FILE=$NDK_PATH/build/cmake/android.toolchain.cmake \
    -DANDROID_ABI=$ABI \
    -DANDROID_NDK=$NDK_PATH \
    -DANDROID_PLATFORM=android-28 \
    \
    -DCMAKE_MAKE_PROGRAM=$NINJA_EXEC \
    -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR_PATH}/usr \
    -DCMAKE_BUILD_TYPE=Release \
    -DBUILD_SHARED_LIBS=ON \
    -DENABLE_SWIFT=ON \
    -DCMAKE_Swift_COMPILER="${SWIFT_NATIVE_TOOLCHAIN_PATH}/swiftc" \
    -DCMAKE_Swift_FLAGS="-target aarch64-unknown-linux-android28 -tools-directory ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/ -sdk ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/sysroot -resource-dir $SWIFT_BUILD_PRODUCT_PATH/swift-linux-x86_64/lib/swift" \
    ../../../swift-corelibs-libdispatch

$NINJA_EXEC -C .
$NINJA_EXEC -C . install

Build Foundation

Build icu

Download android libiconv from github: https://github.com/pelya/libiconv-libicu-android.git

cd $WORKSPACE_SWIFT_AARCH64_ANDROID
git clone https://github.com/pelya/libiconv-libicu-android.git
cd libiconv-libicu-android

Apply patch Patch/libiconv-libicu-android.patch

cd $WORKSPACE_SWIFT_AARCH64_ANDROID/libiconv-libicu-android
git apply /patch/to/repo/aarch64-android28-swift/Patch/libiconv-libicu-android.patch

PATH=$PATH:$WORKSPACE_SWIFT_AARCH64_ANDROID/android-ndk-r26d SHARED_ICU=1 ./build.sh

Build curl

cd $WORKSPACE_SWIFT_AARCH64_ANDROID
git clone https://github.com/ibaoger/libcurl-android.git
cd libcurl-android
export NDK_ROOT=$WORKSPACE_SWIFT_AARCH64_ANDROID/android-ndk-r26d
./build_for_android.sh

Build xml

cd $WORKSPACE_SWIFT_AARCH64_ANDROID
git clone https://mirrors.tuna.tsinghua.edu.cn/git/AOSP/platform/external/libxml2
cd libxml2
NDK_PATH=$WORKSPACE_SWIFT_AARCH64_ANDROID/android-ndk-r26d
ABI=arm64-v8a
INSTALL_PATH=$WORKSPACE_SWIFT_AARCH64_ANDROID/libxml2/out/$ABI
rm -rf $ABI
mkdir $ABI
cd $ABI
cmake -G Ninja -DCMAKE_TOOLCHAIN_FILE=$NDK_PATH/build/cmake/android.toolchain.cmake \
    -DANDROID_ABI=$ABI \
    -DANDROID_NDK=$NDK_PATH \
    -DANDROID_PLATFORM=android-28 \
    -DCMAKE_INSTALL_PREFIX=${INSTALL_PATH} \
    -DCMAKE_BUILD_TYPE=Release \
    -DLIBXML2_WITH_PYTHON=OFF \
    -DLIBXML2_WITH_ICONV=OFF \
    -DLIBXML2_WITH_TESTS=OFF \
    -DLIBXML2_WITH_PROGRAMS=OFF \
    -DBUILD_SHARED_LIBS=ON \
    ../

cmake --build .
cmake --install .

cd ..
rm -rf $ABI
mkdir $ABI
cd $ABI
cmake -G Ninja -DCMAKE_TOOLCHAIN_FILE=$NDK_PATH/build/cmake/android.toolchain.cmake \
    -DANDROID_ABI=$ABI \
    -DANDROID_NDK=$NDK_PATH \
    -DANDROID_PLATFORM=android-28 \
    -DCMAKE_INSTALL_PREFIX=${INSTALL_PATH} \
    -DCMAKE_BUILD_TYPE=Release \
    -DLIBXML2_WITH_PYTHON=OFF \
    -DLIBXML2_WITH_ICONV=OFF \
    -DLIBXML2_WITH_TESTS=OFF \
    -DLIBXML2_WITH_PROGRAMS=OFF \
    -DBUILD_SHARED_LIBS=OFF \
    ../

cmake --build .
cmake --install .

Build Foundation

Dynamic

WORKSPACE_SWIFT_ANDROID=$WORKSPACE_SWIFT_AARCH64_ANDROID
NDK_PATH=$WORKSPACE_SWIFT_ANDROID/android-ndk-r26d
ABI=arm64-v8a
INSTALL_DIR_PATH=$WORKSPACE_SWIFT_ANDROID/install
SWIFT_NATIVE_TOOLCHAIN_PATH=$WORKSPACE_SWIFT_ANDROID/swift-5.10.1-RELEASE-ubuntu22.04/usr/bin/
SWIFT_SOURCE_ROOT=$WORKSPACE_SWIFT_ANDROID/swift-project/
SWIFT_BUILD_PRODUCT_PATH=${SWIFT_SOURCE_ROOT}/build/buildbot_linux
NINJA_EXEC=$SWIFT_BUILD_PRODUCT_PATH/ninja-build/ninja
LIBICONV_BUILD_PATH=$WORKSPACE_SWIFT_ANDROID/libiconv-libicu-android/$ABI
ICU_ROOT=${SWIFT_BUILD_PRODUCT_PATH}/libicu-android-arm64/tmp_install
ICU_LIBDIR=${SWIFT_BUILD_PRODUCT_PATH}/libicu-android-arm64/lib
LIBCURL_BUILD_PATH=$WORKSPACE_SWIFT_ANDROID/libcurl-android/jni/build/curl/$ABI
LIBCURL_ROOT=${SWIFT_BUILD_PRODUCT_PATH}/libcurl-android-arm64/tmp_install
LIBCURL_LIBDIR=${SWIFT_BUILD_PRODUCT_PATH}/libcurl-android-arm64/lib
LIBXML2_BUILD_PATH=$WORKSPACE_SWIFT_ANDROID/libxml2/out/$ABI
LIBXML2_ROOT=${SWIFT_BUILD_PRODUCT_PATH}/libxml2-android-arm64/tmp_install
LIBXML2_LIBDIR=${SWIFT_BUILD_PRODUCT_PATH}/libxml2-android-arm64/lib

rm -rf ${SWIFT_BUILD_PRODUCT_PATH}/libicu-android-arm64
mkdir -p ${ICU_ROOT}/include
mkdir -p ${ICU_LIBDIR}

# libiconv
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicudata.so` ${ICU_LIBDIR}/libicudataswift.so
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicuuc.so` ${ICU_LIBDIR}/libicuucswift.so
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicui18n.so` ${ICU_LIBDIR}/libicui18nswift.so

cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicudata.a` ${ICU_LIBDIR}/libicudataswift.a
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicuuc.a` ${ICU_LIBDIR}/libicuucswift.a
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicui18n.a` ${ICU_LIBDIR}/libicui18nswift.a

cp -rf ${LIBICONV_BUILD_PATH}/include/unicode ${ICU_ROOT}/include


# libcurl
rm -rf ${SWIFT_BUILD_PRODUCT_PATH}/libcurl-android-arm64
mkdir -p ${LIBCURL_ROOT}/include
mkdir -p ${LIBCURL_LIBDIR}

cp -rf `readlink -e ${LIBCURL_BUILD_PATH}/lib/libcurl.so` ${LIBCURL_LIBDIR}/libcurlswift.so
cp -rf `readlink -e ${LIBCURL_BUILD_PATH}/lib/libcurl.a` ${LIBCURL_LIBDIR}/libcurlswift.a
cp -rf $LIBCURL_BUILD_PATH/include/curl $LIBCURL_ROOT/include

# libxml
rm -rf ${SWIFT_BUILD_PRODUCT_PATH}/libxml2-android-arm64
mkdir -p ${LIBXML2_ROOT}/include
mkdir -p ${LIBXML2_LIBDIR}

cp -rf `readlink -e ${LIBXML2_BUILD_PATH}/lib/libxml2.so` ${LIBXML2_LIBDIR}/libxml2swift.so
cp -rf `readlink -e ${LIBXML2_BUILD_PATH}/lib/libxml2.a` ${LIBXML2_LIBDIR}/libxml2swift.a
cp -rf $LIBXML2_BUILD_PATH/include/libxml2 $LIBXML2_ROOT/include

rm -rf $SWIFT_BUILD_PRODUCT_PATH/foundation-android-aarch64
mkdir -p $SWIFT_BUILD_PRODUCT_PATH/foundation-android-aarch64
cd $SWIFT_BUILD_PRODUCT_PATH/foundation-android-aarch64
cmake -G Ninja \
    -DCMAKE_TOOLCHAIN_FILE=$NDK_PATH/build/cmake/android.toolchain.cmake \
    -DANDROID_ABI=$ABI \
    -DANDROID_NDK=$NDK_PATH \
    -DANDROID_PLATFORM=android-28 \
    \
    -DCMAKE_MAKE_PROGRAM=$NINJA_EXEC \
    -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR_PATH}/usr \
    -DCMAKE_BUILD_TYPE=Release \
    -DBUILD_SHARED_LIBS=ON \
    -Ddispatch_DIR=${SWIFT_BUILD_PRODUCT_PATH}/libdispatch-android-arm64/cmake/modules \
    \
    -DICU_ROOT:PATH=${ICU_ROOT} \
    -DICU_INCLUDE_DIR:PATH=${ICU_ROOT}/include \
    -DICU_DATA_LIBRARIES:FILEPATH=${ICU_LIBDIR}/libicudataswift.so \
    -DICU_DATA_LIBRARY:FILEPATH=${ICU_LIBDIR}/libicudataswift.so \
    -DICU_DATA_LIBRARY_DEBUG:FILEPATH=${ICU_LIBDIR}/libicudataswift.so \
    -DICU_DATA_LIBRARY_RELEASE:FILEPATH=${ICU_LIBDIR}/libicudataswift.so \
    -DICU_UC_LIBRARIES:FILEPATH=${ICU_LIBDIR}/libicuucswift.so \
    -DICU_UC_LIBRARY:FILEPATH=${ICU_LIBDIR}/libicuucswift.so \
    -DICU_UC_LIBRARY_DEBUG:FILEPATH=${ICU_LIBDIR}/libicuucswift.so \
    -DICU_UC_LIBRARY_RELEASE:FILEPATH=${ICU_LIBDIR}/libicuucswift.so \
    -DICU_I18N_LIBRARIES:FILEPATH=${ICU_LIBDIR}/libicui18nswift.so \
    -DICU_I18N_LIBRARY:FILEPATH=${ICU_LIBDIR}/libicui18nswift.so \
    -DICU_I18N_LIBRARY_DEBUG:FILEPATH=${ICU_LIBDIR}/libicui18nswift.so \
    -DICU_I18N_LIBRARY_RELEASE:FILEPATH=${ICU_LIBDIR}/libicui18nswift.so \
    \
    -DCURL_LIBRARY=${LIBCURL_LIBDIR}/libcurlswift.a \
    -DCURL_INCLUDE_DIR=${LIBCURL_ROOT}/include \
    \
    -DLIBXML2_LIBRARY=${LIBXML2_LIBDIR}/libxml2swift.a \
    -DLIBXML2_INCLUDE_DIR=${LIBXML2_ROOT}/include/libxml2 \
    -DLIBXML2_DEFINITIONS="-DLIBXML_STATIC" \
    \
    -DCMAKE_HAVE_LIBC_PTHREAD=YES \
    -DCMAKE_Swift_COMPILER="${SWIFT_NATIVE_TOOLCHAIN_PATH}/swiftc" \
    -DCMAKE_Swift_FLAGS="-target aarch64-unknown-linux-android28 -tools-directory ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/ -sdk ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/sysroot -resource-dir $SWIFT_BUILD_PRODUCT_PATH/swift-linux-x86_64/lib/swift" \
    ../../../swift-corelibs-foundation

$NINJA_EXEC -C .
$NINJA_EXEC -C . install

echo "change icu so path"
patchelf --replace-needed libicudata.so libicudataswift.so ${ICU_LIBDIR}/libicuucswift.so
patchelf --replace-needed libicudata.so libicudataswift.so ${ICU_LIBDIR}/libicui18nswift.so
patchelf --replace-needed libicuuc.so libicuucswift.so ${ICU_LIBDIR}/libicui18nswift.so
patchelf --replace-needed ${ICU_LIBDIR}/libicuucswift.so libicuucswift.so /root/workspace/install/usr/lib/swift/android/libFoundation.so
patchelf --replace-needed ${ICU_LIBDIR}/libicudataswift.so libicudataswift.so /root/workspace/install/usr/lib/swift/android/libFoundation.so
patchelf --replace-needed ${ICU_LIBDIR}/libicui18nswift.so libicui18nswift.so ${INSTALL_DIR_PATH}/usr/lib/swift/android/libFoundation.so

Static

WORKSPACE_SWIFT_ANDROID=$WORKSPACE_SWIFT_AARCH64_ANDROID
NDK_PATH=$WORKSPACE_SWIFT_ANDROID/android-ndk-r26d
ABI=arm64-v8a
INSTALL_DIR_PATH=$WORKSPACE_SWIFT_ANDROID/install
SWIFT_NATIVE_TOOLCHAIN_PATH=$WORKSPACE_SWIFT_ANDROID/swift-5.10.1-RELEASE-ubuntu22.04/usr/bin/
SWIFT_SOURCE_ROOT=$WORKSPACE_SWIFT_ANDROID/swift-project/
SWIFT_BUILD_PRODUCT_PATH=${SWIFT_SOURCE_ROOT}/build/buildbot_linux
NINJA_EXEC=$SWIFT_BUILD_PRODUCT_PATH/ninja-build/ninja
LIBICONV_BUILD_PATH=$WORKSPACE_SWIFT_ANDROID/libiconv-libicu-android/$ABI
ICU_ROOT=${SWIFT_BUILD_PRODUCT_PATH}/libicu-android-arm64/tmp_install
ICU_LIBDIR=${SWIFT_BUILD_PRODUCT_PATH}/libicu-android-arm64/lib
LIBCURL_BUILD_PATH=$WORKSPACE_SWIFT_ANDROID/libcurl-android/jni/build/curl/$ABI
LIBCURL_ROOT=${SWIFT_BUILD_PRODUCT_PATH}/libcurl-android-arm64/tmp_install
LIBCURL_LIBDIR=${SWIFT_BUILD_PRODUCT_PATH}/libcurl-android-arm64/lib
LIBXML2_BUILD_PATH=$WORKSPACE_SWIFT_ANDROID/libxml2/out/$ABI
LIBXML2_ROOT=${SWIFT_BUILD_PRODUCT_PATH}/libxml2-android-arm64/tmp_install
LIBXML2_LIBDIR=${SWIFT_BUILD_PRODUCT_PATH}/libxml2-android-arm64/lib

rm -rf ${SWIFT_BUILD_PRODUCT_PATH}/libicu-android-arm64
mkdir -p ${ICU_ROOT}/include
mkdir -p ${ICU_LIBDIR}

# libiconv
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicudata.so` ${ICU_LIBDIR}/libicudataswift.so
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicuuc.so` ${ICU_LIBDIR}/libicuucswift.so
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicui18n.so` ${ICU_LIBDIR}/libicui18nswift.so

cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicudata.a` ${ICU_LIBDIR}/libicudataswift.a
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicuuc.a` ${ICU_LIBDIR}/libicuucswift.a
cp -rf `readlink -e ${LIBICONV_BUILD_PATH}/lib/libicui18n.a` ${ICU_LIBDIR}/libicui18nswift.a

cp -rf ${LIBICONV_BUILD_PATH}/include/unicode ${ICU_ROOT}/include


# libcurl
rm -rf ${SWIFT_BUILD_PRODUCT_PATH}/libcurl-android-arm64
mkdir -p ${LIBCURL_ROOT}/include
mkdir -p ${LIBCURL_LIBDIR}

cp -rf `readlink -e ${LIBCURL_BUILD_PATH}/lib/libcurl.so` ${LIBCURL_LIBDIR}/libcurlswift.so
cp -rf `readlink -e ${LIBCURL_BUILD_PATH}/lib/libcurl.a` ${LIBCURL_LIBDIR}/libcurlswift.a
cp -rf $LIBCURL_BUILD_PATH/include/curl $LIBCURL_ROOT/include

# libxml
rm -rf ${SWIFT_BUILD_PRODUCT_PATH}/libxml2-android-arm64
mkdir -p ${LIBXML2_ROOT}/include
mkdir -p ${LIBXML2_LIBDIR}

cp -rf `readlink -e ${LIBXML2_BUILD_PATH}/lib/libxml2.so` ${LIBXML2_LIBDIR}/libxml2swift.so
cp -rf `readlink -e ${LIBXML2_BUILD_PATH}/lib/libxml2.a` ${LIBXML2_LIBDIR}/libxml2swift.a
cp -rf $LIBXML2_BUILD_PATH/include/libxml2 $LIBXML2_ROOT/include

rm -rf $SWIFT_BUILD_PRODUCT_PATH/foundation-android-aarch64
mkdir -p $SWIFT_BUILD_PRODUCT_PATH/foundation-android-aarch64
cd $SWIFT_BUILD_PRODUCT_PATH/foundation-android-aarch64
cmake -G Ninja \
    -DCMAKE_TOOLCHAIN_FILE=$NDK_PATH/build/cmake/android.toolchain.cmake \
    -DANDROID_ABI=$ABI \
    -DANDROID_NDK=$NDK_PATH \
    -DANDROID_PLATFORM=android-28 \
    \
    -DCMAKE_MAKE_PROGRAM=$NINJA_EXEC \
    -DCMAKE_INSTALL_PREFIX=${INSTALL_DIR_PATH}/usr \
    -DCMAKE_BUILD_TYPE=Release \
    -DBUILD_SHARED_LIBS=OFF \
    -Ddispatch_DIR=${SWIFT_BUILD_PRODUCT_PATH}/libdispatch-android-arm64/cmake/modules \
    \
    -DICU_ROOT:PATH=${ICU_ROOT} \
    -DICU_INCLUDE_DIR:PATH=${ICU_ROOT}/include \
    -DICU_DATA_LIBRARIES:FILEPATH=${ICU_LIBDIR}/libicudataswift.a \
    -DICU_DATA_LIBRARY:FILEPATH=${ICU_LIBDIR}/libicudataswift.a \
    -DICU_DATA_LIBRARY_DEBUG:FILEPATH=${ICU_LIBDIR}/libicudataswift.a \
    -DICU_DATA_LIBRARY_RELEASE:FILEPATH=${ICU_LIBDIR}/libicudataswift.a \
    -DICU_UC_LIBRARIES:FILEPATH=${ICU_LIBDIR}/libicuucswift.a \
    -DICU_UC_LIBRARY:FILEPATH=${ICU_LIBDIR}/libicuucswift.a \
    -DICU_UC_LIBRARY_DEBUG:FILEPATH=${ICU_LIBDIR}/libicuucswift.a \
    -DICU_UC_LIBRARY_RELEASE:FILEPATH=${ICU_LIBDIR}/libicuucswift.a \
    -DICU_I18N_LIBRARIES:FILEPATH=${ICU_LIBDIR}/libicui18nswift.a \
    -DICU_I18N_LIBRARY:FILEPATH=${ICU_LIBDIR}/libicui18nswift.a \
    -DICU_I18N_LIBRARY_DEBUG:FILEPATH=${ICU_LIBDIR}/libicui18nswift.a \
    -DICU_I18N_LIBRARY_RELEASE:FILEPATH=${ICU_LIBDIR}/libicui18nswift.a \
    \
    -DCURL_LIBRARY=${LIBCURL_LIBDIR}/libcurlswift.a \
    -DCURL_INCLUDE_DIR=${LIBCURL_ROOT}/include \
    \
    -DLIBXML2_LIBRARY=${LIBXML2_LIBDIR}/libxml2swift.a \
    -DLIBXML2_INCLUDE_DIR=${LIBXML2_ROOT}/include/libxml2 \
    -DLIBXML2_DEFINITIONS="-DLIBXML_STATIC" \
    \
    -DCMAKE_HAVE_LIBC_PTHREAD=YES \
    -DCMAKE_Swift_COMPILER="${SWIFT_NATIVE_TOOLCHAIN_PATH}/swiftc" \
    -DCMAKE_Swift_FLAGS="-target aarch64-unknown-linux-android28 -tools-directory ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/bin/ -sdk ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/sysroot -resource-dir $SWIFT_BUILD_PRODUCT_PATH/swift-linux-x86_64/lib/swift" \
    ../../../swift-corelibs-foundation

$NINJA_EXEC -C .
$NINJA_EXEC -C . install

Copy Dependency

NDK_PATH=$$WORKSPACE_SWIFT_AARCH64_ANDROID/android-ndk-r26d
cp -rf ${ICU_LIBDIR}/libicu*.so ${INSTALL_DIR_PATH}/usr/lib/swift/android/
cp -rf ${ICU_LIBDIR}/libicu*.a ${INSTALL_DIR_PATH}/usr/lib/swift_static/android/
cp -rf ${LIBCURL_LIBDIR}/libcurl*.so ${INSTALL_DIR_PATH}/usr/lib/swift/android/
cp -rf ${LIBCURL_LIBDIR}/libcurl*.a ${INSTALL_DIR_PATH}/usr/lib/swift_static/android/
cp -rf ${LIBXML2_LIBDIR}/libxml2*.so ${INSTALL_DIR_PATH}/usr/lib/swift/android/
cp -rf ${LIBXML2_LIBDIR}/libxml2*.a ${INSTALL_DIR_PATH}/usr/lib/swift_static/android/
cp -rf ${NDK_PATH}/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/aarch64-linux-android/libc++_shared.so ${INSTALL_DIR_PATH}/usr/lib/swift/android/

After building success, you can found sdk at $WORKSPACE_SWIFT_AARCH64_ANDROID/install

Have fun and play with Swift everywhere!

Name		Name	Last commit message	Last commit date
Latest commit History 6 Commits
Destinations		Destinations
Patch		Patch
.gitattributes		.gitattributes
.gitignore		.gitignore
LICENSE		LICENSE
README.md		README.md
aarch64-unknown-linux-android28-runtime.tar.gz		aarch64-unknown-linux-android28-runtime.tar.gz

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aarch64-unknown-linux-android28 Toolchain

Current support Swift version

How to install in macOS host

How to test in android target

How to build App

How to build swift for aarch64-unknown-linux-android28

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Install packages for compile

Prepare compile workspace

Download NDK Toolchain

Download the same version of swift toolchain

Download swift source code

Patch source code

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Start build

Build Swift

Build libdispatch

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CmST0us/aarch64-android28-swift

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aarch64-unknown-linux-android28 Toolchain

Current support Swift version

How to install in macOS host

How to test in android target

How to build App

How to build swift for aarch64-unknown-linux-android28

Dependence

Install packages for compile

Prepare compile workspace

Download NDK Toolchain

Download the same version of swift toolchain

Download swift source code

Patch source code

Apply patch

Start build

Build Swift

Build libdispatch

Static

Dynamic

Build Foundation

Build icu

Build curl

Build xml

Build Foundation

Dynamic

Static

Copy Dependency

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