2025-01-06 20:19:52 +01:00
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# Look for GCC in path
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# https://xpack.github.io/riscv-none-embed-gcc/
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FIND_FILE( RISCV_XPACK_GCC_COMPILER_EXE "riscv-none-embed-gcc.exe" PATHS ENV INCLUDE)
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FIND_FILE( RISCV_XPACK_GCC_COMPILER "riscv-none-embed-gcc" PATHS ENV INCLUDE)
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# New versions of xpack
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FIND_FILE( RISCV_XPACK_NEW_GCC_COMPILER_EXE "riscv-none-elf-gcc.exe" PATHS ENV INCLUDE)
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FIND_FILE( RISCV_XPACK_NEW_GCC_COMPILER "riscv-none-elf-gcc" PATHS ENV INCLUDE)
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# Look for RISC-V github GCC
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# https://github.com/riscv/riscv-gnu-toolchain
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FIND_FILE( RISCV_XPACK_GCC_COMPILER_EXT "riscv64-unknown-elf-gcc.exe" PATHS ENV INCLUDE)
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FIND_FILE( RISCV_XPACK_GCC_COMPILER "riscv64-unknown-elf-gcc" PATHS ENV INCLUDE)
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# Select which is found
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if (EXISTS ${RISCV_XPACK_NEW_GCC_COMPILER})
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set( RISCV_GCC_COMPILER ${RISCV_XPACK_NEW_GCC_COMPILER})
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elseif (EXISTS ${RISCV_XPACK_GCC_NEW_COMPILER_EXE})
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set( RISCV_GCC_COMPILER ${RISCV_XPACK_NEW_GCC_COMPILER_EXE})
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elseif (EXISTS ${RISCV_XPACK_GCC_COMPILER})
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set( RISCV_GCC_COMPILER ${RISCV_XPACK_GCC_COMPILER})
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elseif (EXISTS ${RISCV_XPACK_GCC_COMPILER_EXE})
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set( RISCV_GCC_COMPILER ${RISCV_XPACK_GCC_COMPILER_EXE})
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elseif (EXISTS ${RISCV_GITHUB_GCC_COMPILER})
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set( RISCV_GCC_COMPILER ${RISCV_GITHUB_GCC_COMPILER})
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elseif (EXISTS ${RISCV_GITHUB_GCC_COMPILER_EXE})
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set( RISCV_GCC_COMPILER ${RISCV_GITHUB_GCC_COMPILER_EXE})
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else()
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message(FATAL_ERROR "RISC-V GCC not found. ${RISCV_GITHUB_GCC_COMPILER} ${RISCV_XPACK_GCC_COMPILER} ${RISCV_GITHUB_GCC_COMPILER_EXE} ${RISCV_XPACK_GCC_COMPILER_EXE}")
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endif()
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get_filename_component(RISCV_TOOLCHAIN_BIN_PATH ${RISCV_GCC_COMPILER} DIRECTORY)
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get_filename_component(RISCV_TOOLCHAIN_BIN_GCC ${RISCV_GCC_COMPILER} NAME_WE)
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get_filename_component(RISCV_TOOLCHAIN_BIN_EXT ${RISCV_GCC_COMPILER} EXT)
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STRING(REGEX REPLACE "\-gcc" "-" CROSS_COMPILE ${RISCV_TOOLCHAIN_BIN_GCC})
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# The Generic system name is used for embedded targets (targets without OS)
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set(CMAKE_SYSTEM_NAME Generic )
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set(CMAKE_EXECUTABLE_SUFFIX_C ".elf")
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2025-01-07 11:01:22 +01:00
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set(RISCV_ARCH rv32imc_zicsr_zifencei )
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2025-01-06 20:19:52 +01:00
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set(RISCV_ABI ilp32)
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set(CMAKE_ASM_COMPILER {CROSS_COMPILE}gcc )
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set(CMAKE_AR ${CROSS_COMPILE}ar)
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set(CMAKE_ASM_COMPILER ${CROSS_COMPILE}gcc)
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set(CMAKE_C_COMPILER ${CROSS_COMPILE}gcc)
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set(CMAKE_CXX_COMPILER ${CROSS_COMPILE}g++)
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set( CMAKE_OBJCOPY ${RISCV_TOOLCHAIN_BIN_PATH}/${CROSS_COMPILE}objcopy
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CACHE FILEPATH "The toolchain objcopy command " FORCE )
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set( CMAKE_OBJDUMP ${RISCV_TOOLCHAIN_BIN_PATH}/${CROSS_COMPILE}objdump
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CACHE FILEPATH "The toolchain objdump command " FORCE )
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set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=${RISCV_ARCH} -mabi=${RISCV_ABI}" )
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set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )
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set( CMAKE_CXX_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )
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set( CMAKE_ASM_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "" )
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