现在我的toolchain.cmake
看起来像这样:
CMAKE_FORCE_C_COMPILER(arm-none-eabi-gcc GNU)
CMAKE_FORCE_CXX_COMPILER(arm-none-eabi-gcc GNU)
SET(CMAKE_ASM_COMPILER arm-none-eabi-as)
SET(CMAKE_OBJCOPY arm-none-eabi-objcopy CACHE INTERNAL "objcopy" FORCE)
SET(CMAKE_OBJDUMP arm-none-eabi-objdump CACHE INTERNAL "objdump" FORCE)
# Compiler Flags
SET(MCU_FLAGS "-mcpu=cortex-m3 -mthumb")
SET(CMAKE_BUILD_FLAGS "-O2 -g -mfpu=vfp -mfloat-abi=soft -Wa,-meabi=5 -ffunction-sections -fno-common -pedantic -Wall -Wextra -Wno-missing-field-initializers")
SET(CMAKE_C_FLAGS "${MCU_FLAGS} ${CMAKE_BUILD_FLAGS}" CACHE INTERNAL "c compiler flags")
SET(CMAKE_CXX_FLAGS ${CMAKE_C_FLAGS} CACHE INTERNAL "cxx compiler flags")
SET(CMAKE_ASM_FLAGS "-g -mcpu=cortex-m3 -mthumb -mfpu=vfp -mfloat-abi=soft -meabi=5 -warn" CACHE INTERNAL "asm compiler flags")
SET(CMAKE_EXE_LINKER_FLAGS "-mcpu=cortex-m3 -mthumb -Wall -Wextra -Wno-missing-field-initializers -g -nostartfiles -Wl,-T1.ld,-M=1.map,--gc-sections" CACHE INTERNAL "exe link flags")
问题在于CMake将编译器标志额外传递给链接器!有没有办法将这两个分开?
另一件事是,如果我使用另一个编译器工具链(如Fujitsu Softtune),如何明确告诉CMake采用链接器而不是编译器来链接对象?
谢谢。
所以我最终解决了它。对于所有遇到同样问题的人,我将CMakelists更改如下:
add_executable(${PROJECT_NAME} ${PROJECT_SOURCES})
SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES LINKER_LANGUAGE C CXX ASM)
SET_TARGET_PROPERTIES(${PROJECT_NAME} PROPERTIES LINK_FLAGS "${LD_FLAGS_STR} -m ${PROJECT_NAME}.map")
set(CMAKE_C_LINK_EXECUTABLE "FLNK907S.EXE -o <TARGET> <LINK_FLAGS> <OBJECTS>")
它很好地运行着...
其中${LD_FLAGS_STR}
只是我的链接器标志列表(自己的变量),而LNK907S.EXE
是我正在使用的链接器的名称(Fujitsu)。