171 lines
5.3 KiB
CMake
171 lines
5.3 KiB
CMake
cmake_minimum_required(VERSION 3.12)
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# Set default RISC-V toolchain if not specified
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if(NOT DEFINED RISCV_TOOLCHAIN_PATH)
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set(RISCV_TOOLCHAIN_PATH "/opt/shared/cross-toolchains/gcc13/CentOS/riscv64-unknown-elf/bin" CACHE STRING "Path to RISC-V toolchain")
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endif()
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# Allow override of compiler executables
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if(NOT DEFINED RISCV_GCC)
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set(RISCV_GCC "/opt/shared/cross-toolchains/gcc13/CentOS/riscv64-unknown-elf/bin/riscv64-unknown-elf-gcc" CACHE STRING "RISC-V GCC compiler")
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endif()
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if(NOT DEFINED RISCV_GXX)
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set(RISCV_GXX "${RISCV_TOOLCHAIN_PATH}/riscv64-unknown-elf-g++" CACHE STRING "RISC-V G++ compiler")
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endif()
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if(NOT DEFINED RISCV_OBJCOPY)
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set(RISCV_OBJCOPY "${RISCV_TOOLCHAIN_PATH}/riscv64-unknown-elf-objcopy" CACHE STRING "RISC-V objcopy")
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endif()
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if(NOT DEFINED RISCV_OBJDUMP)
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set(RISCV_OBJDUMP "${RISCV_TOOLCHAIN_PATH}/riscv64-unknown-elf-objdump" CACHE STRING "RISC-V objdump")
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endif()
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# Set the compilers
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set(CMAKE_C_COMPILER ${RISCV_GCC})
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set(CMAKE_CXX_COMPILER ${RISCV_GXX})
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project(Firmware)
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# Define supported configurations
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set(SUPPORTED_BOARDS iss)
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set(SUPPORTED_ISAS "rv32i;rv32im;rv32imc;rv64i;rv64im;rv64imc;imc")
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set(SUPPORTED_ABIS "ilp32;ilp32f;lp64;lp64f")
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# Build target options
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option(BUILD_HELLO_WORLD "Build hello-world example" ON)
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option(BUILD_DHRYSTONE "Build dhrystone benchmark" OFF)
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option(BUILD_COREMARK "Build coremark benchmark" OFF)
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option(BUILD_ALL "Build all targets" OFF)
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# If BUILD_ALL is ON, enable all targets
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if(BUILD_ALL)
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set(BUILD_HELLO_WORLD ON)
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set(BUILD_DHRYSTONE ON)
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set(BUILD_COREMARK ON)
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endif()
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# Set default values and validate configurations
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if(NOT DEFINED BOARD)
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set(BOARD iss CACHE STRING "Target board")
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endif()
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if(NOT DEFINED ISA)
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set(ISA imc CACHE STRING "Target ISA")
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endif()
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if(NOT DEFINED RISCV_ABI)
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if(ISA MATCHES "^rv64")
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set(RISCV_ABI "lp64" CACHE STRING "RISC-V ABI")
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else()
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set(RISCV_ABI "ilp32" CACHE STRING "RISC-V ABI")
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endif()
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endif()
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# Validate configurations
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if(NOT BOARD IN_LIST SUPPORTED_BOARDS)
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message(FATAL_ERROR "Invalid BOARD specified. Supported boards: ${SUPPORTED_BOARDS}")
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endif()
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if(NOT ISA IN_LIST SUPPORTED_ISAS)
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message(FATAL_ERROR "Invalid ISA specified. Supported ISAs: ${SUPPORTED_ISAS}")
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endif()
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if(NOT RISCV_ABI IN_LIST SUPPORTED_ABIS)
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message(FATAL_ERROR "Invalid ABI specified. Supported ABIs: ${SUPPORTED_ABIS}")
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endif()
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# Set RISC-V architecture based on ISA
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if(ISA MATCHES "^rv")
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set(RISCV_ARCH ${ISA})
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else()
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# Default to rv32 for backward compatibility
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set(RISCV_ARCH "rv32${ISA}")
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endif()
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# Set BSP base directory
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set(BSP_BASE "${CMAKE_CURRENT_SOURCE_DIR}/bare-metal-bsp")
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# Global compile definitions
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add_compile_definitions(BOARD_${BOARD})
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# RISC-V specific compiler flags
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#set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=${RISCV_ARCH}_zicsr_zifencei -mabi=${RISCV_ABI}")
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#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=${RISCV_ARCH}_zicsr_zifencei -mabi=${RISCV_ABI}")
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# Optional: Enable semihosting support
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option(SEMIHOSTING "Enable semihosting support" OFF)
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if(SEMIHOSTING)
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add_compile_definitions(SEMIHOSTING)
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endif()
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#create interface library for propagating compile options
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add_library(global_compile_options INTERFACE)
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# Compile options
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target_compile_options(global_compile_options INTERFACE
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-march=${RISCV_ARCH}_zicsr_zifencei
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-mabi=${RISCV_ABI}
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-mcmodel=medany
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-O2
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-g
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# -ffunction-sections
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# -fdata-sections
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)
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message(STATUS "Building firmware with configuration:")
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message(STATUS " Board: ${BOARD}")
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message(STATUS " ISA: ${ISA} (Architecture: ${RISCV_ARCH})")
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message(STATUS " ABI: ${RISCV_ABI}")
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message(STATUS " Semihosting: ${SEMIHOSTING}")
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message(STATUS " Toolchain:")
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message(STATUS " Path: ${RISCV_TOOLCHAIN_PATH}")
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message(STATUS " C Compiler: ${CMAKE_C_COMPILER}")
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message(STATUS " C++ Compiler: ${CMAKE_CXX_COMPILER}")
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message(STATUS "Targets to build:")
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message(STATUS " hello-world: ${BUILD_HELLO_WORLD}")
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message(STATUS " dhrystone: ${BUILD_DHRYSTONE}")
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message(STATUS " coremark: ${BUILD_COREMARK}")
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add_subdirectory(bare-metal-bsp)
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# Add subdirectories based on build options
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if(BUILD_HELLO_WORLD)
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add_subdirectory(hello-world)
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endif()
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if(BUILD_DHRYSTONE)
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add_subdirectory(benchmarks/dhrystone)
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endif()
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if(BUILD_COREMARK)
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add_subdirectory(benchmarks/coremark)
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endif()
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# Create an all-inclusive target only if BUILD_ALL is ON
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if(BUILD_ALL)
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add_custom_target(fw-common ALL
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DEPENDS
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hello-world
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dhrystone
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coremark
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)
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endif()
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# Print build instructions
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message(STATUS "")
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message(STATUS "Build instructions:")
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message(STATUS " Build all targets: cmake -DBUILD_ALL=ON ..")
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message(STATUS " Build specific target: cmake -DBUILD_HELLO_WORLD=ON -DBUILD_DHRYSTONE=OFF -DBUILD_COREMARK=OFF ..")
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message(STATUS " Configure board: cmake -DBOARD=iss ..")
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message(STATUS " Configure ISA: cmake -DISA=rv32imc ..")
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message(STATUS " Configure ABI: cmake -DRISCV_ABI=ilp32 ..")
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message(STATUS " Enable semihosting: cmake -DSEMIHOSTING=ON ..")
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message(STATUS " Set toolchain path: cmake -DRISCV_TOOLCHAIN_PATH=/path/to/toolchain ..")
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message(STATUS " Set specific compiler: cmake -DRISCV_GCC=/path/to/riscv-gcc -DRISCV_GXX=/path/to/riscv-g++ ..")
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