89 lines
2.2 KiB
CMake
89 lines
2.2 KiB
CMake
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cmake_minimum_required (VERSION 3.14)
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set(CMAKE_VERBOSE_MAKEFILE on)
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set(CMAKE_BUILD_TYPE "Release") # "Release" or "Debug"
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set(CHCORE_PLAT "raspi3")
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set(CHCORE_ARCH "aarch64")
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mark_as_advanced(CMAKE_INSTALL_PREFIX)
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if (CMAKE_BUILD_TYPE STREQUAL "Debug")
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add_definitions("-DLOG_LEVEL=2")
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else ()
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add_definitions("-DLOG_LEVEL=1")
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endif ()
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set(CROSS_COMPILE "${CHCORE_ARCH}-linux-gnu-")
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set(CMAKE_C_COMPILER "${CROSS_COMPILE}gcc")
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set(CMAKE_ASM_COMPILER "${CROSS_COMPILE}gcc")
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execute_process (
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COMMAND ${CMAKE_C_COMPILER} -print-file-name=include
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OUTPUT_STRIP_TRAILING_WHITESPACE
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OUTPUT_VARIABLE C_COMPILER_INCLUDE
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)
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set(CMAKE_C_FLAGS
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"-Wall -fPIC -nostdlib -nostartfiles -ffreestanding \
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-DCHCORE -nostdinc ")
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project (chos C ASM)
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set(BOOTLOADER_PATH "boot")
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set(KERNEL_PATH "${CMAKE_CURRENT_SOURCE_DIR}/kernel")
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set(KERNEL_ARCH_PATH "${KERNEL_PATH}")
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set(KERNEL_MM_PATH "${KERNEL_PATH}/mm")
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include_directories(".")
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include_directories("${KERNEL_PATH}")
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add_subdirectory("${KERNEL_ARCH_PATH}")
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add_subdirectory("${KERNEL_MM_PATH}")
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set(BINARY_KERNEL_IMG_PATH "CMakeFiles/kernel.img.dir")
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set(init_object
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"${BINARY_KERNEL_IMG_PATH}/${BOOTLOADER_PATH}/start.S.o
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${BINARY_KERNEL_IMG_PATH}/${BOOTLOADER_PATH}/mmu.c.o
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${BINARY_KERNEL_IMG_PATH}/${BOOTLOADER_PATH}/tools.S.o
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${BINARY_KERNEL_IMG_PATH}/${BOOTLOADER_PATH}/init_c.c.o
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${BINARY_KERNEL_IMG_PATH}/${BOOTLOADER_PATH}/uart.c.o"
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)
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set(link_script "linker.lds")
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configure_file("./scripts/linker-aarch64.lds.in" "linker.lds.S")
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set(files "")
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include("${BOOTLOADER_PATH}/config.cmake")
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add_executable(kernel.img ${files}
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$<TARGET_OBJECTS:${PROJECT_NAME}-arch>
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$<TARGET_OBJECTS:${PROJECT_NAME}-mm>
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)
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set_property(
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TARGET kernel.img
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APPEND_STRING
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PROPERTY
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LINK_FLAGS
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"-T ${CMAKE_CURRENT_BINARY_DIR}/${link_script} -e _start"
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)
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set_property(
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TARGET kernel.img
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APPEND_STRING
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PROPERTY
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DEPENDS
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"${link_script}"
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)
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add_custom_command(
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TARGET kernel.img
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PRE_LINK
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COMMAND ${CMAKE_C_COMPILER} -E -x c
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-I${CMAKE_SOURCE_DIR}/${BOOTLOADER_PATH}/include ./linker.lds.S | grep -v "^#" > linker.lds
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)
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