顶层CMakeLists.txt

cmake_minimum_required (VERSION 3.5)

# 配置 交叉编译 放置在 project() 命令之前

# /opt/fslc-wayland/2.5.2/sysroots/aarch64-fslc-linux/usr/bin/make: error
# while loading shared libraries: libdl.so.2: cannot open shared object file:
# No such file or directory
# 解决：export LD_LIBRARY_PATH=<交叉编译链里面的libdl.so.2的路径>

set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR arm)

# 设置交叉编译工具链
set (CMAKE_SYSROOT /opt/fslc-wayland/2.5.2/sysroots/aarch64-fslc-linux)
set (COMPILE_PREFIX /opt/fslc-wayland/2.5.2/sysroots/x86_64-fslcsdk-linux/usr/bin/aarch64-fslc-linux/aarch64-fslc-linux-)
set (CMAKE_C_COMPILER ${COMPILE_PREFIX}gcc)
set (CMAKE_CXX_COMPILER ${COMPILE_PREFIX}g++)

# 设置一个变量
set (LIBS_DIR ${CMAKE_SOURCE_DIR}/libs)

project (ttm_hsm)

# 添加编译子目录
add_subdirectory (./libs/ttm_hsm_api/)
add_subdirectory (./src/)

子目录CMakeLists.txt（编译共享库）

cmake_minimum_required (VERSION 3.5)

project (ttm_hsm_api_lib)

include_directories (${LIBS_DIR}/m2000/include)

# 自动查找指定目录的源文件
aux_source_directory (. SRC_LIST)

# set (SRC_LIST ./ttm_hsm_api.c)

add_library (ttm_hsm_api_shared SHARED ${SRC_LIST})

set_target_properties (ttm_hsm_api_shared PROPERTIES OUTPUT_NAME "ttm_hsm_api")

set (LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR})

message (STATUS "LIBS_DIR: ${LIBS_DIR}")
message (STATUS "LIBRARY_OUTPUT_PATH: ${LIBRARY_OUTPUT_PATH}")
message (STATUS "SRC_LIST: ${SRC_LIST}")

子目录CMakeLists.txt（编译可执行文件）

cmake_minimum_required (VERSION 3.5)

project (ttm_hsm_demo)

set (SRC_LIST ./demo/main.c)
set (SRC_LIST_1 ./demo2/main.c)

include_directories (
	${LIBS_DIR}/m2000/include
	${LIBS_DIR}/ttm_hsm_api
)

# find_library 在cmake时检查库是否存在
# find_library (LIB_M2000 m2000api HINTS ${LIBS_DIR}/m2000/lib)
# find_library (LIB_TTM_HSM_API ttm_hsm_api HINTS ${LIBS_DIR}/ttm_hsm_api)

link_directories (${LIBS_DIR}/m2000/lib)
link_directories (${LIBS_DIR}/ttm_hsm_api)

add_executable (demo1 ${SRC_LIST})
add_executable (demo2 ${SRC_LIST_1})

set (EXECUTABLE_OUTPUT_PATH ${CMAKE_SOURCE_DIR}/bin)

target_link_libraries (
	demo1 
	ttm_hsm_api
	m2000api
	pthread
)

target_link_libraries (
	demo2 
	m2000api
)