80 lines
2.4 KiB
CMake
80 lines
2.4 KiB
CMake
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# find the compilers for C, CPP, assembly
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find_program(CMAKE_C_COMPILER ${CROSS_COMPILE}armclang PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_CXX_COMPILER ${CROSS_COMPILE}armclang PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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find_program(CMAKE_ASM_COMPILER ${CROSS_COMPILE}armclang PATH ${TOOLCHAIN_HOME} NO_DEFAULT_PATH)
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# The CMAKE_REQUIRED_FLAGS variable is used by check_c_compiler_flag()
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# (and other commands which end up calling check_c_source_compiles())
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# to add additional compiler flags used during checking. These flags
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# are unused during "real" builds of Zephyr source files linked into
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# the final executable.
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#
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include(${ZEPHYR_BASE}/cmake/gcc-m-cpu.cmake)
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set(CMAKE_SYSTEM_PROCESSOR ${GCC_M_CPU})
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list(APPEND TOOLCHAIN_C_FLAGS
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-fshort-enums
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)
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if(CONFIG_ARM64)
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list(APPEND TOOLCHAIN_C_FLAGS -mcpu=${GCC_M_CPU})
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list(APPEND TOOLCHAIN_C_FLAGS -mabi=lp64)
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list(APPEND TOOLCHAIN_LD_FLAGS -mabi=lp64)
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else()
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list(APPEND TOOLCHAIN_C_FLAGS -mcpu=${GCC_M_CPU})
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if(CONFIG_COMPILER_ISA_THUMB2)
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list(APPEND TOOLCHAIN_C_FLAGS -mthumb)
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endif()
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list(APPEND TOOLCHAIN_C_FLAGS -mabi=aapcs)
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# Defines a mapping from GCC_M_CPU to FPU
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if(CONFIG_CPU_HAS_FPU_DOUBLE_PRECISION)
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set(PRECISION_TOKEN)
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else()
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set(PRECISION_TOKEN sp-)
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endif()
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set(FPU_FOR_cortex-m4 fpv4-${PRECISION_TOKEN}d16)
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set(FPU_FOR_cortex-m7 fpv5-${PRECISION_TOKEN}d16)
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set(FPU_FOR_cortex-m33 fpv5-${PRECISION_TOKEN}d16)
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if(CONFIG_FPU)
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list(APPEND TOOLCHAIN_C_FLAGS -mfpu=${FPU_FOR_${GCC_M_CPU}})
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if (CONFIG_FP_SOFTABI)
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list(APPEND TOOLCHAIN_C_FLAGS -mfloat-abi=softfp)
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elseif(CONFIG_FP_HARDABI)
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list(APPEND TOOLCHAIN_C_FLAGS -mfloat-abi=hard)
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endif()
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endif()
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endif()
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foreach(file_name include/stddef.h)
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execute_process(
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COMMAND ${CMAKE_C_COMPILER} --print-file-name=${file_name}
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OUTPUT_VARIABLE _OUTPUT
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)
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get_filename_component(_OUTPUT "${_OUTPUT}" DIRECTORY)
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string(REGEX REPLACE "\n" "" _OUTPUT ${_OUTPUT})
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list(APPEND NOSTDINC ${_OUTPUT})
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endforeach()
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foreach(isystem_include_dir ${NOSTDINC})
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list(APPEND isystem_include_flags -isystem ${isystem_include_dir})
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endforeach()
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set(CMAKE_REQUIRED_FLAGS -nostartfiles -nostdlib ${isystem_include_flags})
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string(REPLACE ";" " " CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS}")
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# Load toolchain_cc-family macros
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macro(toolchain_cc_nostdinc)
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if(NOT "${ARCH}" STREQUAL "posix")
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zephyr_compile_options( -nostdinc)
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endif()
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endmacro()
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