47 lines
1.7 KiB
CMake
47 lines
1.7 KiB
CMake
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cmake_minimum_required(VERSION 3.10)
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project(razzle C ASM)
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# Check architecture is passed and is supported
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set(ALLOWED_ARCHS "i386")
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if(NOT DEFINED ARCH)
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message(FATAL_ERROR "Architecture not set s not defined. Supported architectures are: ${ALLOWED_ARCHS}")
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endif()
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list(FIND ALLOWED_ARCHS "${ARCH}" ARCH_INDEX)
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if(ARCH_INDEX EQUAL -1)
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message(FATAL_ERROR "Unsupported architecture: ${ARCH}. Supported architectures are: ${ALLOWED_ARCHS}.")
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endif()
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message(STATUS "Building RAZZLE for ${ARCH}.")
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set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
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set(CMAKE_C_STANDARD 99)
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set(CMAKE_C_FLAGS "-ffreestanding -g -Wall -Wextra -mgeneral-regs-only -DARCH_I386")
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set(CMAKE_ASM_FLAGS "-g")
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set(LINKER_SCRIPT ${CMAKE_SOURCE_DIR}/linker.ld)
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# Common source files
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FILE(GLOB SOURCES kernel/kernel.c)
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# Architecture Specific Files
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if (ARCH STREQUAL "i386")
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set(CMAKE_C_COMPILER i386-elf-gcc)
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set(CMAKE_ASM_COMPILER i386-elf-as)
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set(LD i386-elf-gcc)
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FILE(GLOB ASM_SOURCES arch/i386/*.s)
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SET(ARCH_FLAG "-DARCH_I386")
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endif()
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add_executable(kernel.elf ${SOURCES} ${ASM_SOURCES})
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set_target_properties(kernel.elf PROPERTIES LINK_FLAGS "-T ${LINKER_SCRIPT} -ffreestanding -O2 -nostdlib -lgcc -g ${ARCH_FLAG}")
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add_custom_command(OUTPUT os.iso
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COMMAND cp kernel.elf ../iso/boot/kernel.elf
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COMMAND genisoimage -R -b boot/grub/stage2_eltorito -no-emul-boot -boot-load-size 4 -A os -input-charset utf8 -quiet -boot-info-table -o os.iso ../iso
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DEPENDS kernel.elf
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COMMENT "Generating OS ISO"
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)
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# Run & Debug targets
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add_custom_target(run COMMAND qemu-system-i386 -boot d -cdrom os.iso -m 512 -machine type=pc-i440fx-3.1 -monitor stdio DEPENDS os.iso)
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add_custom_target(debug COMMAND ./debug.sh DEPENDS os.iso)
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