cmake_minimum_required(VERSION 3.5)

message("--------------------------------cmake start [lib$ENV{current_project_name}] --------------------------------")

set(CURRENT_VERSION "${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}")

#通用编译选项
list(APPEND generic_compile_flags "-fPIC" "-rdynamic" "-Wno-psabi" "-Wno-unused-result" "-Wno-narrowing" "-Wno-deprecated-declarations")

#设备类型宏定义
include($ENV{PROJECT_ROOT}/build/cmake/detect_target_product.cmake)


#根据环境变量配置编译参数
if ($ENV{pd_complier_name} STREQUAL "complier_arm")
    #配置处理器
    set(CMAKE_SYSTEM_PROCESSOR arm)
else()
    #配置处理器
    set(CMAKE_SYSTEM_PROCESSOR arm64)

    # 设置 C++ 标准
    set(CMAKE_CXX_STANDARD 11)
    set(CMAKE_CXX_STANDARD_REQUIRED ON)
endif()

#配置系统名称
set(CMAKE_SYSTEM_NAME Linux)#配置编译器
message("-- Ready to set ${TARGET_PRODUCT} compile flags: $ENV{arm_compile_flags}")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} $ENV{arm_compile_flags}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} $ENV{arm_compile_flags}")

#配置sysroot路径
set(CMAKE_SYSROOT $ENV{arm_sysroot_path})
message("-- Ready to set ${TARGET_PRODUCT} sysroot path: $ENV{arm_sysroot_path}")

#根据编译器类型，声明导出库路径
set(LIB_A_PATH "$ENV{PROJECT_ROOT}/out/$ENV{TARGET_PRODUCT}/lib/lib_a")
set(LIB_SO_PATH "$ENV{PROJECT_ROOT}/out/$ENV{TARGET_PRODUCT}/lib/lib_so")

#配置输出目录
set(LIB_EXE_OUT_PATH "$ENV{PROJECT_ROOT}/out/$ENV{TARGET_PRODUCT}/bin")
message("-- Ready to set ${TARGET_PRODUCT} LIB_EXE_OUT_PATH: $ENV{LIB_EXE_OUT_PATH}")

#配置查找路径
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)

#配置C++标准版本 -- C++11
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

#指定模块/程序名称 -- 强制使用g++
project($ENV{current_project_name} LANGUAGES CXX)

#设置编译模式
set(CMAKE_BUILD_TYPE "Release")   #Debug/Release

#依赖头文件路径
include_directories(${CMAKE_SOURCE_DIR}/../../../include/public
                    ${CMAKE_SOURCE_DIR}/../../../include/interface
                    ${CMAKE_SOURCE_DIR}/../../../include/general_type
                    ${CMAKE_SOURCE_DIR}/../../../include/utility
                    ${CMAKE_SOURCE_DIR}/include
                    )

#待编译源文件
file(GLOB_RECURSE SELF_SRC ${CMAKE_SOURCE_DIR}/src/*.cpp)

#动态库输出路径
set(LIBRARY_OUTPUT_PATH ${LIB_SO_PATH})

#依赖库路径：cmake版本小于3.13,则利用link_directories
if (${CURRENT_VERSION} STRLESS "3.13")
    link_directories(${LIB_SO_PATH})
endif()

#生成动态库.so文件：link_directories需在add_library之前，否则不生效
add_library(${PROJECT_NAME} SHARED ${SELF_SRC})

#依赖库路径：cmake版本大于等于3.13，则利用target_link_directories
if (${CURRENT_VERSION} STRGREATER_EQUAL "3.13")
    target_link_directories(${PROJECT_NAME} PUBLIC ${LIB_SO_PATH})
endif()

#设置编译选项
message("-- Ready to set generic compile flags: ${generic_compile_flags}")
target_compile_options(${PROJECT_NAME} PRIVATE ${generic_compile_flags})

#如果是Release版本，删除调试符号减少文件大小
if (CMAKE_BUILD_TYPE)
    if (${CMAKE_BUILD_TYPE} STREQUAL "Release")
        set(TARGET_PATH "${LIBRARY_OUTPUT_PATH}/lib${PROJECT_NAME}.so")
        add_custom_command(TARGET ${PROJECT_NAME} POST_BUILD COMMAND $ENV{STRIP} -s ${TARGET_PATH})
    endif()
endif()

# 设置第二个输出路径，使用自定义命令复制文件
add_custom_command(
    TARGET ${PROJECT_NAME}
    POST_BUILD
    COMMAND ${CMAKE_COMMAND} -E copy $<TARGET_FILE:${PROJECT_NAME}> $ENV{BOARD_DIR}/lib
)