openssl_build.sh

#!/bin/bash -e

################################################################################
#   Copyright 2021 217heidai@gmail.com
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#
#       http://www.apache.org/licenses/LICENSE-2.0
#
#   Unless required by applicable law or agreed to in writing, software
#   distributed under the License is distributed on an "AS IS" BASIS,
#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#   See the License for the specific language governing permissions and
#   limitations under the License.
################################################################################

WORK_PATH=$(cd "$(dirname "$0")";pwd)

ANDROID_TARGET_API=$1
ANDROID_TARGET_ABI=$2
OPENSSL_VERSION=$3
ANDROID_NDK_VERSION=$4
ANDROID_NDK_PATH=${WORK_PATH}/android-ndk-${ANDROID_NDK_VERSION}
OPENSSL_SOURCES_PATH=${WORK_PATH}/openssl-${OPENSSL_VERSION}
OUTPUT_PATH=${WORK_PATH}/openssl_${OPENSSL_VERSION}_${ANDROID_TARGET_ABI}
export CXXFLAGS="-fPIC"
export CPPFLAGS="-DANDROID -fPIC"

OPENSSL_TMP_FOLDER=/tmp/openssl_${ANDROID_TARGET_ABI}
mkdir -p ${OPENSSL_TMP_FOLDER}
cp -r ${OPENSSL_SOURCES_PATH}/* ${OPENSSL_TMP_FOLDER}

function build_library {
    mkdir -p ${OUTPUT_PATH}
    make && make install
    rm -rf ${OPENSSL_TMP_FOLDER}
    rm -rf ${OUTPUT_PATH}/bin
    rm -rf ${OUTPUT_PATH}/share
    rm -rf ${OUTPUT_PATH}/ssl
    rm -rf ${OUTPUT_PATH}/lib/cmake
    rm -rf ${OUTPUT_PATH}/lib/engines*
    rm -rf ${OUTPUT_PATH}/lib/pkgconfig
    rm -rf ${OUTPUT_PATH}/lib/ossl-modules
    echo "Build completed! Check output libraries in ${OUTPUT_PATH}"
}

if [ "$ANDROID_TARGET_ABI" == "armeabi-v7a" ]
then
    export ANDROID_NDK_ROOT=${ANDROID_NDK_PATH}
    PATH=$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/linux-x86_64/bin:$ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin:$ANDROID_NDK_ROOT/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin:$PATH
    cd ${OPENSSL_TMP_FOLDER}
    ./Configure android-arm -D__ANDROID_API__=${ANDROID_TARGET_API} -static no-asm no-shared no-tests --prefix=${OUTPUT_PATH}
    build_library

elif [ "$ANDROID_TARGET_ABI" == "arm64-v8a" ]
then
    export ANDROID_NDK_ROOT=${ANDROID_NDK_PATH}
    PATH=$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/linux-x86_64/bin:$ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin:$ANDROID_NDK_ROOT/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin:$PATH
    cd ${OPENSSL_TMP_FOLDER}
    ./Configure android-arm64 -D__ANDROID_API__=${ANDROID_TARGET_API} -static no-asm no-shared no-tests --prefix=${OUTPUT_PATH}
    build_library

elif [ "$ANDROID_TARGET_ABI" == "x86" ]
then
    export ANDROID_NDK_ROOT=${ANDROID_NDK_PATH}
    PATH=$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/linux-x86_64/bin:$ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin:$ANDROID_NDK_ROOT/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin:$PATH
    cd ${OPENSSL_TMP_FOLDER}
    ./Configure android-x86 -D__ANDROID_API__=${ANDROID_TARGET_API} -static no-asm no-shared no-tests --prefix=${OUTPUT_PATH}
    build_library

elif [ "$ANDROID_TARGET_ABI" == "x86_64" ]
then
    export ANDROID_NDK_ROOT=${ANDROID_NDK_PATH}
    PATH=$ANDROID_NDK_ROOT/toolchains/llvm/prebuilt/linux-x86_64/bin:$ANDROID_NDK_ROOT/toolchains/arm-linux-androideabi-4.9/prebuilt/linux-x86_64/bin:$ANDROID_NDK_ROOT/toolchains/aarch64-linux-android-4.9/prebuilt/linux-x86_64/bin:$PATH
    cd ${OPENSSL_TMP_FOLDER}
    ./Configure android-x86_64 -D__ANDROID_API__=${ANDROID_TARGET_API} -static no-asm no-shared no-tests --prefix=${OUTPUT_PATH}
    build_library

else
    echo "Unsupported target ABI: $ANDROID_TARGET_ABI"
    exit 1
fi