how to generate executable file

[zcy618]

hi all:
I meet one strange issue, I write one demo code with cpp and aarch64 asm, my cmakelists.txt is as below:
cmake_minimum_required(VERSION 3.6)

set(CMAKE_SYSTEM_NAME Android)
set(CMAKE_SYSTEM_VERSION 21) # API level
set(CMAKE_ANDROID_ARCH_ABI arm64-v8a)
set(CMAKE_ANDROID_NDK /home/chenyuz/android-ndk)
set(CMAKE_ANDROID_STL_TYPE gnustl_static)

PROJECT(test_hello LANGUAGES C CXX ASM VERSION 0.1)

find_package(Threads)

INCLUDE_DIRECTORIES(
inc
)

AUX_SOURCE_DIRECTORY(src Source)

list(APPEND Source src/rsCpuIntrinsics_advsimd_Resize.S)

add_executable(${PROJECT_NAME} ${Source})

target_link_libraries(${PROJECT_NAME} ${CMAKE_THREAD_LIBS_INIT})

TARGET_LINK_LIBRARIES(${PROJECT_NAME} m)
TARGET_LINK_LIBRARIES(${PROJECT_NAME} log)
TARGET_LINK_LIBRARIES(${PROJECT_NAME} c)

Then I run:
chenyuz@chenyuz-youdao:~/Youdao/Aarch64_unittest/build$ cmake -DCMAKE_TOOLCHAIN_FILE=/home/chenyuz/android-ndk/build/cmake/android.toolchain.cmake -DCMAKE_BUILD_TYPE=Release -DANDROID_ABI=arm64-v8a .. -- The ASM compiler identification is Clang -- Found assembler: /home/chenyuz/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- Check for working C compiler: /home/chenyuz/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- Check for working C compiler: /home/chenyuz/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: /home/chenyuz/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -- Check for working CXX compiler: /home/chenyuz/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Configuring done -- Generating done -- Build files have been written to: /home/chenyuz/Youdao/Aarch64_unittest/build chenyuz@chenyuz-youdao:~/Youdao/Aarch64_unittest/build$ make Scanning dependencies of target test_hello [ 50%] Building CXX object CMakeFiles/test_hello.dir/jni/test-asm.cpp.o [100%] Linking CXX executable test_hello [100%] Built target test_hello chenyuz@chenyuz-youdao:~/Youdao/Aarch64_unittest/build$ file test_hello test_hello: ELF 64-bit LSB shared object, ARM aarch64, version 1 (SYSV), dynamically linked (uses shared libs), BuildID[sha1]=e12c6117eba88c1c844d719d6707a5ef48d233de, not stripped chenyuz@chenyuz-youdao:~/Youdao/Aarch64_unittest/build$

as you see, it is generated as shared object, not executable file. I already use add_executable() function, so I am really wonderring how to generate one executable file, it already tormented some days, I really need your help!

Thanks in advanced!