53 lines
1.7 KiB
CMake
53 lines
1.7 KiB
CMake
cmake_minimum_required(VERSION 3.21)
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include(CheckLinkerFlag)
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project(mnrs-bsp LANGUAGES ASM C)
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option(NO_INIT "use an empty init routine" OFF)
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set(LINKER_SCRIPT "${CMAKE_CURRENT_SOURCE_DIR}/env/${BOARD}/link.lds"
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CACHE FILEPATH "Linker script to use for BSP linking")
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get_filename_component(LINKER_SCRIPT_DIR "${LINKER_SCRIPT}" DIRECTORY)
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set(BSP_STARTUP "${CMAKE_CURRENT_SOURCE_DIR}/env/start.S"
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CACHE FILEPATH "Path to the BSP startup assembly file")
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set(BSP_TRAP_HANDLER "${CMAKE_CURRENT_SOURCE_DIR}/env/entry.S"
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CACHE FILEPATH "Assembly file implementing trap handler")
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if(NOT DEFINED BOARD)
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message(FATAL_ERROR "No Board selected")
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endif()
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add_compile_definitions("BOARD_${BOARD}")
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set(TESTBENCHES "rtl" "TGCP")
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list(FIND TESTBENCHES ${BOARD} _index)
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if(NOT _index EQUAL -1)
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set(BOARD "testbench/${BOARD}")
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endif()
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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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add_library(startup STATIC ${BSP_STARTUP} ${BSP_TRAP_HANDLER})
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target_include_directories(startup PUBLIC env include)
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add_subdirectory(libwrap)
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add_library(runtime STATIC env/${BOARD}/init.c)
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target_include_directories(runtime PUBLIC env/${BOARD} env include)
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if(NO_INIT)
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target_compile_definitions(runtime PRIVATE NO_INIT)
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endif()
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check_linker_flag(C "LINKER:--no-warn-rwx-segments" HAS_NO_WARN_RWX_SEGMENTS)
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if(HAS_NO_WARN_RWX_SEGMENTS)
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target_link_options(runtime INTERFACE LINKER:--no-warn-rwx-segments)
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endif()
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target_link_options(runtime INTERFACE LINKER: -nostartfiles -T ${LINKER_SCRIPT} -L${LINKER_SCRIPT_DIR})
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if(SEMIHOSTING)
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target_sources(runtime INTERFACE env/semihosting.c env/trap.c)
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endif()
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add_library(bsp INTERFACE)
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target_link_libraries(bsp INTERFACE startup runtime wrap)
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