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https://github.com/johndoe6345789/MetalOS.git
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87 lines
2.0 KiB
CMake
87 lines
2.0 KiB
CMake
# MetalOS Kernel CMakeLists
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# Include directories
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include_directories(include)
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# Source files
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set(KERNEL_C_SOURCES
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src/main.c
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src/gdt.c
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src/interrupts.c
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src/memory.c
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src/pci.c
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src/timer.c
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src/smp.c
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src/apic.c
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src/spinlock.c
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)
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set(KERNEL_ASM_SOURCES
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src/gdt_flush.asm
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src/interrupts_asm.asm
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src/ap_trampoline.asm
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)
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# Kernel-specific C compiler flags
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set(KERNEL_CFLAGS
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-mcmodel=large
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-O2
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)
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# Create kernel C object files
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add_library(kernel_c_objs OBJECT
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${KERNEL_C_SOURCES}
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)
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target_compile_options(kernel_c_objs PRIVATE ${KERNEL_CFLAGS})
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target_include_directories(kernel_c_objs PRIVATE include)
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# Create kernel ASM object files separately
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# We need to avoid CMake adding C flags to NASM
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foreach(asm_file ${KERNEL_ASM_SOURCES})
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get_filename_component(asm_name ${asm_file} NAME_WE)
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set(asm_obj ${CMAKE_CURRENT_BINARY_DIR}/${asm_name}.o)
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add_custom_command(
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OUTPUT ${asm_obj}
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COMMAND ${CMAKE_ASM_NASM_COMPILER}
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-f elf64
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-I ${CMAKE_CURRENT_SOURCE_DIR}/include
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-o ${asm_obj}
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${CMAKE_CURRENT_SOURCE_DIR}/${asm_file}
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DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${asm_file}
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COMMENT "Assembling ${asm_file}"
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VERBATIM
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)
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list(APPEND KERNEL_ASM_OBJS ${asm_obj})
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endforeach()
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# Custom target for ASM objects
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add_custom_target(kernel_asm_objs
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DEPENDS ${KERNEL_ASM_OBJS}
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)
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# Link kernel binary
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add_custom_command(
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OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/metalos.bin
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COMMAND ${CMAKE_LINKER}
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-nostdlib
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-T ${CMAKE_CURRENT_SOURCE_DIR}/linker.ld
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$<TARGET_OBJECTS:kernel_c_objs>
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${KERNEL_ASM_OBJS}
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-o ${CMAKE_CURRENT_BINARY_DIR}/metalos.bin
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DEPENDS kernel_c_objs kernel_asm_objs ${CMAKE_CURRENT_SOURCE_DIR}/linker.ld
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COMMENT "Linking kernel binary"
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COMMAND_EXPAND_LISTS
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)
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add_custom_target(kernel ALL
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DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/metalos.bin
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)
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# Install kernel binary
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install(FILES ${CMAKE_CURRENT_BINARY_DIR}/metalos.bin
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DESTINATION bin
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)
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