e4cc638a8d
This commit adds GDT initialization with proper code/data segments and reloads CS. It also adds the initial IDT structure and loads an empty IDT. Build configuration updated to disable SSE/MMX to prevent compiler generation of unsupported instructions in early boot.
41 lines
1.5 KiB
CMake
41 lines
1.5 KiB
CMake
cmake_minimum_required(VERSION 3.16)
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project(ClaudeOS C ASM)
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set(CMAKE_C_STANDARD 99)
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# We are building a kernel, so we don't want standard libraries
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffreestanding -m32 -fno-pie -fno-pic -fno-builtin -fno-stack-protector -mno-sse -mno-mmx -g -O2 -Wall -Wextra")
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set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -m32 -fno-pie -fno-pic")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -m32 -nostdlib -no-pie")
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# Define build output directory
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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(src)
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# Create output directories
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file(MAKE_DIRECTORY ${CMAKE_SOURCE_DIR}/release)
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file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/isodir/boot/grub)
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# Create grub.cfg for ISO
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file(WRITE ${CMAKE_BINARY_DIR}/isodir/boot/grub/grub.cfg "set timeout=0\nset default=0\nsearch --set=root --file /boot/kernel.bin\nmenuentry \"ClaudeOS\" { multiboot /boot/kernel.bin }")
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# ISO Generation
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add_custom_target(iso ALL
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COMMAND ${CMAKE_COMMAND} -E copy ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/kernel ${CMAKE_BINARY_DIR}/isodir/boot/kernel.bin
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COMMAND grub-mkrescue -o ${CMAKE_SOURCE_DIR}/release/claude-os.iso ${CMAKE_BINARY_DIR}/isodir
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DEPENDS kernel
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COMMENT "Generating bootable ISO image"
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)
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# Test target
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add_custom_target(test_images
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COMMAND sh ${CMAKE_SOURCE_DIR}/test_images.sh
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DEPENDS iso
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COMMENT "Testing generated images in QEMU"
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
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)
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