CMakeLists.txt

[gbowne1]

cmake_minimum_required(VERSION 3.13.4)
project(ClassicOS
VERSION 0.0.1
DESCRIPTION "An x86 Operating System for your pleasure and enjoyment"
HOMEPAGE_URL "https://github.com/gbowne1/ClassicOS"
LANGUAGES C)

	set(IS_OS_WINDOWS FALSE)
	set(IS_OS_LINUX FALSE)
	set(IS_OS_MAC FALSE)

	if (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Windows")
		set(IS_OS_WINDOWS TRUE)
		message("Building for the Windows operating system.")
	elseif (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Linux")
		set(IS_OS_LINUX TRUE)
		message("Building for the Linux operating system.")
	elseif (${CMAKE_HOST_SYSTEM_NAME} STREQUAL "Darwin")
		set(IS_OS_MAC TRUE)
		message("Building for the Mac operating system.")
	endif ()

Source files

set(BOOT_SOURCE_FILES
src/boot/boot.asm
src/boot/linker.ld
)

set(GRUB_SOURCE_FILES
src/boot/grub/grub.cfg
src/boot/grub/menu.lst
)

set(DRIVERS_SOURCE_FILES
src/drivers/audio/audio.c
src/drivers/audio/audio.h
src/drivers/bus/eisa.c
src/drivers/bus/eisa.h
src/drivers/bus/isa.c
src/drivers/bus/isa.h
src/drivers/bus/mca.c
src/drivers/bus/mca.h
src/drivers/bus/pci.c
src/drivers/bus/pci.h
src/drivers/bus/vesa.c
src/drivers/bus/vesa.h
src/drivers/display/display.c
src/drivers/display/display.h
src/drivers/io/io.c
src/drivers/io/io.h
src/drivers/keyboard/keyboard.c
src/drivers/keyboard/keyboard.h
src/drivers/screen/screen.c
src/drivers/screen/screen.h
src/drivers/tty/tty.c
src/drivers/tty/tty.h
)
set(KERNEL_SOURCE_FILES
src/kernel/arch/x86/include/memory.h
src/kernel/arch/x86/include/types.h
src/kernel/arch/x86/include/types.h
src/kernel/arch/x86/memory/memory.c
src/kernel/arch/x86/gdt.c
src/kernel/arch/x86/gdt.c
src/kernel/arch/x86/idt.c
src/kernel/arch/x86/idt.h
src/kernel/arch/x86/isr.c
src/kernel/arch/x86/isr.h
src/kernel/kernel.c
src/kernel/kernel.h
src/kernel/linker.ld
src/kernel/print.c
)

add_executable(ClassicOS
${BOOT_SOURCE_FILES}
${GRUB_SOURCE_FILES}
${DRIVERS_SOURCE_FILES}
${KERNEL_SOURCE_FILES}
)

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

if(WIN32)

Define build steps for Windows

elseif(LINUX)

Define build steps for other platforms

elseif(UNIX)

endif()

if (IS_OS_LINUX)
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -f elf")
set(CMAKE_C_COMPILER gcc)
set(CMAKE_LINKER ld)
set(CMAKE_EXE_LINKER_FLAGS "-g -s")
set(CMAKE_LINK_FLAGS "${CMAKE_LINK_FLAGS} -e kernel_main")
set(CMAKE_CXX_FLAGS "-g -Wall")
set(CMAKE_C_FLAGS "-g -Wall -m32")
set(CMAKE_C_FLAGS_DEBUG "-g")
set(CMAKE_GDB_COMMAND gdb)
set(CMAKE_CXX_FLAGS_DEBUG "-g -O0")
set_target_properties(ClassicOS PROPERTIES LINK_FLAGS "-T ${CMAKE_CURRENT_SOURCE_DIR}/linker.ld")
elseif (IS_OS_WINDOWS)
set(CMAKE_ASM_NASM_FLAGS "${CMAKE_ASM_NASM_FLAGS} -f win32")
endif ()

Enable testing

enable_testing()

target_link_libraries(ClassicOS PRIVATE)

set(CMAKE_C_COMPILER /usr/bin/gcc)
set(CMAKE_LINKER /usr/bin/ld)
set(CMAKE_EXE_LINKER_FLAGS "-g -s")

set(CMAKE_LINK_FLAGS) usage is deprecated, use CMAKE_EXE_LINKER_FLAGS).

set(CMAKE_LINK_FLAGS "${CMAKE_LINK_FLAGS} -e kernel_main")
set(CMAKE_CXX_FLAGS "-g Wall ")
set(CMAKE_C_FLAGS "-g -Wall")
set(CMAKE_C_FLAGS_DEBUG "-g -Wall")
set(CMAKE_BUILD_TYPE Debug)
set(CMAKE_GDB_COMMAND "/usr/bin/gdb")
set(CMAKE_CXX_FLAGS_DEBUG "-g -O0")
set(CMAKE_CXX_COMPILER g++)
set(CMAKE_ASM_COMPILER /usr/bin/nasm)
set(CMAKE_ASM_NASM_FLAGS "-f elf32 -g -F dwarf")
set(CMAKE_ASM_FLAGS "-m32 -g")
set(CMAKE_ASM_NASM_OBJECT_FORMAT bin)
set(CMAKE_HOST_SYSTEM_PROCESSOR x86_64)
set(CMAKE_SYSTEM_PROCESSOR i386)
set(CMAKE_SYSTEM_NAME None)
set(CMAKE_ASM_NASM_COMPILER user/bin/nasm)
set(CMAKE_C_STANDARD 17)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src)
set(CMAKE_BINARY_DIR ${CMAKE_CURRENT_SOURCE_DIR}/build)
set_target_properties(ClassicOS PROPERTIES LINK_FLAGS "-T ${CMAKE_CURRENT_SOURCE_DIR}/linker.ld")