https://github.com/cmst0us/aarch64-android28-swift
Swift toolchain for aarch64 android-28
https://github.com/cmst0us/aarch64-android28-swift
android ndk swift swift-toolchain
Last synced: about 2 months ago
JSON representation
Swift toolchain for aarch64 android-28
- Host: GitHub
- URL: https://github.com/cmst0us/aarch64-android28-swift
- Owner: CmST0us
- License: mit
- Created: 2024-06-24T09:00:59.000Z (11 months ago)
- Default Branch: main
- Last Pushed: 2024-07-18T06:18:35.000Z (10 months ago)
- Last Synced: 2025-02-04T17:52:10.287Z (4 months ago)
- Topics: android, ndk, swift, swift-toolchain
- Language: Shell
- Homepage:
- Size: 19.5 KB
- Stars: 2
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# 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
1. Firstly you need to install official swift version `5.10.1`, download it from https://swift.org
2. Decompression file `swift-5.10.1-runtime-aarch64-unknown-linux-android28.tar.gz` into `/Library/Developer/Runtimes/aarch64-unknown-linux-android28`:
```bash
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
```
1. Generate destination json file:
```bash
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:
```
1. Copy generated destination json file:
```bash
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/ /data/local/tmp
# Then run in your android device
adb shell
cd /data/local/tmp
LD_LIBRARY_PATH=. ./
```
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]()
```bash
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.
```bash
mkdir workspace
cd workspace
export WORKSPACE_SWIFT_AARCH64_ANDROID=`pwd`
```
### Download NDK Toolchain
Be careful to the version of ndk, we need `26d`
```bash
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.
```bash
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
```bash
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`
```bash
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`
```bash
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
```bash
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
```bash
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 .
$NINJA_EXEC -C . install
```
#### Dynamic
```bash
WORKSPACE_SWIFT_ANDROID=$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`
```bash
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`
```bash
cd $WORKSPACE_SWIFT_AARCH64_ANDROID/libiconv-libicu-android
git apply /patch/to/repo/aarch64-android28-swift/Patch/libiconv-libicu-android.patch
```
```bash
PATH=$PATH:$WORKSPACE_SWIFT_AARCH64_ANDROID/android-ndk-r26d SHARED_ICU=1 ./build.sh
```
#### Build curl
```bash
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
```bash
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=${INSTALL_PATH} \
-DCMAKE_BUILD_TYPE=Release \
-DLIBXML2_WITH_PYTHON=OFF \
-DLIBXML2_WITH_ICONV=OFF \
-DLIBXML2_WITH_TESTS=OFF \
-DLIBXML2_WITH_PROGRAMS=OFF \
-DBUILD_SHARED_LIBS=OFF \
../
cmake --build .
cmake --install .
```
#### Build Foundation
##### Dynamic
```bash
WORKSPACE_SWIFT_ANDROID=$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 ${INSTALL_DIR_PATH}/usr/lib/swift/android/libFoundation.so
```
##### Static
```bash
WORKSPACE_SWIFT_ANDROID=$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
```bash
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!`