66 lines
2.8 KiB
CMake
66 lines
2.8 KiB
CMake
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set(CMAKE_SYSTEM_NAME Generic)
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set(CMAKE_SYSTEM_PROCESSOR arm)
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set(CMAKE_C_COMPILER_ID Clang)
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set(CMAKE_CXX_COMPILER_ID Clang)
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# Some default llvm settings
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set(TOOLCHAIN_PREFIX starm-)
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set(CMAKE_C_COMPILER ${TOOLCHAIN_PREFIX}clang)
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set(CMAKE_ASM_COMPILER ${CMAKE_C_COMPILER})
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set(CMAKE_CXX_COMPILER ${TOOLCHAIN_PREFIX}clang++)
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set(CMAKE_LINKER ${TOOLCHAIN_PREFIX}clang)
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set(CMAKE_OBJCOPY ${TOOLCHAIN_PREFIX}objcopy)
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set(CMAKE_SIZE ${TOOLCHAIN_PREFIX}size)
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set(CMAKE_EXECUTABLE_SUFFIX_ASM ".elf")
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set(CMAKE_EXECUTABLE_SUFFIX_C ".elf")
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set(CMAKE_EXECUTABLE_SUFFIX_CXX ".elf")
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set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
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# STARM_TOOLCHAIN_CONFIG allows you to choose the toolchain configuration.
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# Possible values are:
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# "STARM_HYBRID" : Hybrid configuration using starm-clang Assemler and Compiler and GNU Linker
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# "STARM_NEWLIB" : starm-clang toolchain with NEWLIB C library
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# "STARM_PICOLIBC" : starm-clang toolchain with PICOLIBC C library
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set(STARM_TOOLCHAIN_CONFIG "STARM_HYBRID")
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if(STARM_TOOLCHAIN_CONFIG STREQUAL "STARM_HYBRID")
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set(TOOLCHAIN_MULTILIBS "--multi-lib-config=\"$ENV{CLANG_GCC_CMSIS_COMPILER}/multilib.gnu_tools_for_stm32.yaml\" --gcc-toolchain=\"$ENV{GCC_TOOLCHAIN_ROOT}/..\"")
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elseif (STARM_TOOLCHAIN_CONFIG STREQUAL "STARM_NEWLIB")
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set(TOOLCHAIN_MULTILIBS "--config=newlib.cfg")
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endif()
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# MCU specific flags
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set(TARGET_FLAGS "-mcpu=cortex-m3 ${TOOLCHAIN_MULTILIBS}")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${TARGET_FLAGS}")
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set(CMAKE_ASM_FLAGS "${CMAKE_C_FLAGS} -x assembler-with-cpp -MP")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -fdata-sections -ffunction-sections")
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set(CMAKE_C_FLAGS_DEBUG "-O0 -g3")
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set(CMAKE_C_FLAGS_RELEASE "-Os -g0")
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set(CMAKE_CXX_FLAGS_DEBUG "-O0 -g3")
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set(CMAKE_CXX_FLAGS_RELEASE "-Os -g0")
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set(CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS} -fno-rtti -fno-exceptions -fno-threadsafe-statics")
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set(CMAKE_EXE_LINKER_FLAGS "${TARGET_FLAGS}")
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if (STARM_TOOLCHAIN_CONFIG STREQUAL "STARM_HYBRID")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} --gcc-specs=nano.specs")
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set(TOOLCHAIN_LINK_LIBRARIES "m")
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elseif(STARM_TOOLCHAIN_CONFIG STREQUAL "STARM_NEWLIB")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lcrt0-nosys")
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elseif(STARM_TOOLCHAIN_CONFIG STREQUAL "STARM_PICOLIBC")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lcrt0-hosted")
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endif()
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -T \"${CMAKE_SOURCE_DIR}/STM32F103XX_FLASH.ld\"")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-Map=${CMAKE_PROJECT_NAME}.map -Wl,--gc-sections")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -z noexecstack")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--print-memory-usage ")
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