206 lines
8.0 KiB
CMake
206 lines
8.0 KiB
CMake
# =============================================================================
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# 顶层平台检测变量
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# 这些变量可在整个项目中使用，用于条件编译和依赖选择
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# =============================================================================
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# 桌面平台检测
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set(MIRAI_DESKTOP_PLATFORM OFF)
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if(WIN32 OR (UNIX AND NOT ANDROID AND NOT IOS))
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set(MIRAI_DESKTOP_PLATFORM ON)
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endif()
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# 移动平台检测
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set(MIRAI_MOBILE_PLATFORM OFF)
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if(ANDROID OR IOS)
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set(MIRAI_MOBILE_PLATFORM ON)
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endif()
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# 各平台标志
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set(MIRAI_PLATFORM_WINDOWS OFF)
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set(MIRAI_PLATFORM_LINUX OFF)
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set(MIRAI_PLATFORM_MACOS OFF)
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set(MIRAI_PLATFORM_ANDROID OFF)
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set(MIRAI_PLATFORM_IOS OFF)
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if(WIN32)
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set(MIRAI_PLATFORM_WINDOWS ON)
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elseif(ANDROID)
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set(MIRAI_PLATFORM_ANDROID ON)
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elseif(IOS)
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set(MIRAI_PLATFORM_IOS ON)
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elseif(APPLE)
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set(MIRAI_PLATFORM_MACOS ON)
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elseif(UNIX)
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set(MIRAI_PLATFORM_LINUX ON)
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endif()
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# =============================================================================
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# 平台定义函数（为目标添加详细的平台宏）
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# =============================================================================
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# 定义一个函数，为指定的目标添加操作系统和架构相关的预处理器定义
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function(add_os_definitions target)
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# 检查 target 参数是否提供
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if(NOT target)
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message(FATAL_ERROR "函数 add_os_definitions 需要一个 target 参数。")
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return()
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endif()
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# --- 阶段 1: 确定宏的值 ---
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# 初始化所有平台、架构和特性宏的值为 0
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set(mirai_def_windows 0)
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set(mirai_def_macos 0)
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set(mirai_def_linux 0)
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set(mirai_def_freebsd 0)
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set(mirai_def_ios 0)
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set(mirai_def_android 0)
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set(mirai_def_cygwin 0)
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set(mirai_def_unix 0)
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set(mirai_def_posix 0)
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set(mirai_def_mobile 0)
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set(mirai_def_arch_64bit 0)
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set(mirai_def_arch_32bit 0)
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set(mirai_def_x86 0)
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set(mirai_def_arm 0)
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set(mirai_def_riscv 0)
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set(mirai_def_apple 0) # 用于 iOS 和 macOS 的通用定义
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set(mirai_def_debug 0) # 当前是否处于调试模式
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if (CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(mirai_def_debug 1)
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endif ()
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# -- 操作系统检测与赋值 --
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# 注意检测顺序：优先检测更具体的平台
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if(CYGWIN)
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# Cygwin 环境比较特殊，它在 Windows 上模拟 Unix
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set(mirai_def_windows 1) # 基础是 Windows
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set(mirai_def_cygwin 1) # 明确是 Cygwin
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set(mirai_def_unix 1) # 提供 Unix API
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set(mirai_def_posix 1) # 提供 POSIX API
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# message(STATUS "检测到 **Cygwin** 环境 (运行于 Windows)")
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elseif(WIN32)
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# 非 Cygwin 的 Windows 环境 (MSVC, MinGW, etc.)
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set(mirai_def_windows 1)
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# message(STATUS "检测到 **Windows** 操作系统 (非 Cygwin)")
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elseif(ANDROID)
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# Android 平台 (通常需要特定工具链设置 ANDROID 变量)
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set(mirai_def_android 1)
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set(mirai_def_unix 1) # Android NDK 基于 Unix
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set(mirai_def_posix 1) # NDK 提供 POSIX API
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set(mirai_def_mobile 1) # 移动平台
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# message(STATUS "检测到 **Android** 操作系统")
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elseif(IOS)
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# iOS 平台 (通常需要特定工具链设置 IOS 变量)
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# 需要在 APPLE 之前判断，因为 iOS 下 APPLE 也为 TRUE
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set(mirai_def_ios 1)
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set(mirai_def_unix 1) # iOS (Darwin) 基于 Unix
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set(mirai_def_posix 1) # 提供 POSIX API
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set(mirai_def_mobile 1) # 移动平台
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set(mirai_def_apple 1) # iOS 是 Apple 生态的一部分
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# message(STATUS "检测到 **iOS** 操作系统")
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elseif(APPLE)
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# 此时排除了 iOS，确定是 macOS
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set(mirai_def_macos 1)
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set(mirai_def_unix 1) # macOS (Darwin) 基于 Unix
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set(mirai_def_posix 1) # 提供 POSIX API
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set(mirai_def_apple 1) # macOS 是 Apple 生态的一部分
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message(STATUS "检测到 **macOS** 操作系统")
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elseif(UNIX)
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# 此时排除了 Apple, Android, Cygwin 的其他 Unix-like 系统
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set(mirai_def_unix 1)
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set(mirai_def_posix 1)
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if(CMAKE_SYSTEM_NAME MATCHES "Linux")
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set(mirai_def_linux 1)
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# message(STATUS "检测到 **Linux** 操作系统")
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elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
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set(mirai_def_freebsd 1)
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# message(STATUS "检测到 **FreeBSD** 操作系统")
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else()
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message(WARNING "检测到未知的 类Unix 操作系统: ${CMAKE_SYSTEM_NAME}")
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endif()
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else()
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message(WARNING "检测到未知的操作系统: ${CMAKE_SYSTEM_NAME}")
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endif()
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# -- 架构检测与赋值 --
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(mirai_def_arch_64bit 1)
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set(mirai_def_arch_32bit 0) # 明确设置为 0
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# message(STATUS "检测到 **64-bit** 架构")
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elseif(CMAKE_SIZEOF_VOID_P EQUAL 4)
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set(mirai_def_arch_64bit 0) # 明确设置为 0
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set(mirai_def_arch_32bit 1)
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# message(STATUS "检测到 **32-bit** 架构")
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else()
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# 对于未知或未定义的指针大小，两者都保持 0
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message(WARNING "无法明确检测到 32-bit 或 64-bit 架构 (CMAKE_SIZEOF_VOID_P = ${CMAKE_SIZEOF_VOID_P})。将两者都设置为 0。")
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endif()
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# 检测特定架构类型
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "x86|i386|i486|i586|i686|i786|x86_64|AMD64")
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set(mirai_def_x86 1)
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# message(STATUS "检测到 **x86/x64** 架构")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|aarch64|ARM64")
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set(mirai_def_arm 1)
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# message(STATUS "检测到 **ARM** 架构")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "riscv|riscv64|riscv32")
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set(mirai_def_riscv 1)
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# message(STATUS "检测到 **RISC-V** 架构")
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endif()
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# --- 阶段 2: 组装定义列表 ---
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set(definitions_list "") # 初始化空列表
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# 添加平台定义
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list(APPEND definitions_list "MIRAI_PLATFORM_WINDOWS=${mirai_def_windows}")
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list(APPEND definitions_list "MIRAI_PLATFORM_MACOS=${mirai_def_macos}")
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list(APPEND definitions_list "MIRAI_PLATFORM_LINUX=${mirai_def_linux}")
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list(APPEND definitions_list "MIRAI_PLATFORM_FREEBSD=${mirai_def_freebsd}")
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list(APPEND definitions_list "MIRAI_PLATFORM_IOS=${mirai_def_ios}")
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list(APPEND definitions_list "MIRAI_PLATFORM_ANDROID=${mirai_def_android}")
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list(APPEND definitions_list "MIRAI_PLATFORM_CYGWIN=${mirai_def_cygwin}")
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list(APPEND definitions_list "MIRAI_PLATFORM_APPLE=${mirai_def_apple}") # 用于 iOS 和 macOS 的通用定义
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# 添加架构定义
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list(APPEND definitions_list "MIRAI_PLATFORM_ARCH_64BIT=${mirai_def_arch_64bit}")
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list(APPEND definitions_list "MIRAI_PLATFORM_ARCH_32BIT=${mirai_def_arch_32bit}")
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# 添加特性定义
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list(APPEND definitions_list "MIRAI_PLATFORM_UNIX=${mirai_def_unix}")
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list(APPEND definitions_list "MIRAI_PLATFORM_POSIX=${mirai_def_posix}")
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list(APPEND definitions_list "MIRAI_PLATFORM_IS_MOBILE=${mirai_def_mobile}")
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list(APPEND definitions_list "MIRAI_DEBUG=${mirai_def_debug}") # 当前是否处于调试模式
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list(APPEND definitions_list "MIRAI_PLATFORM_X86=${mirai_def_x86}")
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list(APPEND definitions_list "MIRAI_PLATFORM_ARM=${mirai_def_arm}")
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list(APPEND definitions_list "MIRAI_PLATFORM_RISCV=${mirai_def_riscv}")
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# --- 阶段 3: 应用所有定义 ---
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# **关键：使用一次调用将所有定义添加到目标**
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if(definitions_list) # 确保列表非空
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get_target_property(target_type ${target} TYPE)
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if(target_type STREQUAL "INTERFACE_LIBRARY")
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target_compile_definitions(${target} INTERFACE ${definitions_list})
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else()
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target_compile_definitions(${target} PUBLIC ${definitions_list})
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endif()
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endif()
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# 函数作用域结束时，mirai_def_* 变量会自动销毁，无需显式 unset
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endfunction()
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# --- 使用示例 ---
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# project(MyProject)
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# add_executable(my_app main.c)
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#
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# # 调用函数为 my_app 添加平台定义
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# add_os_definitions(my_app)
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#
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# # 你也可以为库调用
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# # add_library(my_lib STATIC my_lib.c)
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# # add_os_definitions(my_lib)
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