Karina
64 lines
2.2 KiB
CMake
64 lines
2.2 KiB
CMake
cmake_minimum_required(VERSION 3.20)
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project(termOS LANGUAGES C ASM)
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
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set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
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set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
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set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
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add_subdirectory(bootloader)
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add_subdirectory(kernel)
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find_program(MCOPY_EXE mcopy)
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find_program(MKFS_EXE mkfs.fat)
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find_program(CPIO_EXE cpio)
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find_program(QEMU_EXE qemu-system-x86_64)
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set(OVMF_PATH "/usr/share/edk2/ovmf/OVMF_CODE.fd" CACHE FILEPATH "Path to OVMF bios")
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if(MCOPY_EXE AND MKFS_EXE AND CPIO_EXE)
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set(IMG_FILE "${CMAKE_BINARY_DIR}/termOS.img")
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set(INITRAMFS_SRC_DIR "${CMAKE_SOURCE_DIR}/initramfs")
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set(INITRAMFS_CPIO_FILE "${CMAKE_BINARY_DIR}/initramfs.cpio")
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file(GLOB_RECURSE INIT_FILES "${INITRAMFS_SRC_DIR}/*")
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add_custom_command(
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OUTPUT ${INITRAMFS_CPIO_FILE}
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COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_BINARY_DIR}
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COMMAND sh -c "find . -mindepth 1 ! -name '*.cpio' -print0 | ${CPIO_EXE} --null -ov -H newc > \"${INITRAMFS_CPIO_FILE}\""
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WORKING_DIRECTORY ${INITRAMFS_SRC_DIR}
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DEPENDS ${INIT_FILES}
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VERBATIM
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COMMENT "Packing initramfs to cpio..."
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)
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add_custom_command(
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OUTPUT ${IMG_FILE}
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COMMAND dd if=/dev/zero of=${IMG_FILE} bs=1M count=64 status=none
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COMMAND ${MKFS_EXE} -F 32 ${IMG_FILE}
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COMMAND mmd -i ${IMG_FILE} ::/EFI ::/EFI/BOOT
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COMMAND ${MCOPY_EXE} -i ${IMG_FILE} $<TARGET_FILE:BOOTX64> ::/EFI/BOOT/BOOTX64.EFI
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COMMAND ${MCOPY_EXE} -i ${IMG_FILE} ${CMAKE_BINARY_DIR}/bin/kernel.bin ::/kernel.bin
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COMMAND ${MCOPY_EXE} -i ${IMG_FILE} ${INITRAMFS_CPIO_FILE} ::/initramfs.cpio
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DEPENDS BOOTX64 kernel ${INITRAMFS_CPIO_FILE}
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VERBATIM
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COMMENT "Generating bootable image: ${IMG_FILE}"
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)
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add_custom_target(image ALL DEPENDS ${IMG_FILE})
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endif()
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if(QEMU_EXE)
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add_custom_target(run
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COMMAND ${QEMU_EXE}
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-enable-kvm
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-bios ${OVMF_PATH}
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-drive file=${IMG_FILE},format=raw
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-vga std
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-net none
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-serial stdio
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-m 512M
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-s
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DEPENDS image
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)
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endif() |