Enrico Fraccaroli
249 lines
9.0 KiB
CMake
249 lines
9.0 KiB
CMake
# =============================================================================
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# Set the minimum required version of cmake.
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cmake_minimum_required(VERSION 2.8)
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# Initialize the project.
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project(mentos C ASM)
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# =============================================================================
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# Set the main file names.
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set(KERNEL_NAME ${PROJECT_NAME}_kernel)
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set(BOOTLOADER_NAME ${PROJECT_NAME}_bootloader)
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set(BUDDY_SYSTEM_NAME ${PROJECT_NAME}_memory)
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set(BUDDY_SYSTEM_FILE ${PROJECT_SOURCE_DIR}/src/mem/libbuddysystem.a)
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# =============================================================================
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# Set the default build type to Debug.
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if(NOT CMAKE_BUILD_TYPE)
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message(STATUS "Setting build type to 'Debug' as none was specified.")
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set(CMAKE_BUILD_TYPE "Debug" CACHE STRING "Choose the type of build." FORCE)
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endif()
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# =============================================================================
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# Define that this code is kernel code.
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add_definitions(-D__KERNEL__)
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# =============================================================================
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# Add the memory option.
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option(USE_BUDDY_SYSTEM "Build using the buddysystem written by the user." OFF)
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# =============================================================================
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# Add the scheduling option.
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set(SCHEDULER_TYPE
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"SCHEDULER_RR"
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CACHE STRING "Chose the type of scheduler: SCHEDULER_RR SCHEDULER_PRIORITY SCHEDULER_CFS SCHEDULER_EDF SCHEDULER_RM SCHEDULER_AEDF")
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# List of schedulers.
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set_property(CACHE SCHEDULER_TYPE PROPERTY STRINGS SCHEDULER_RR SCHEDULER_PRIORITY SCHEDULER_CFS SCHEDULER_EDF SCHEDULER_RM)
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# Check which scheduler is currently active and export the related macro.
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if("${SCHEDULER_TYPE}" STREQUAL "SCHEDULER_RR"
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OR "${SCHEDULER_TYPE}" STREQUAL "SCHEDULER_PRIORITY"
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OR "${SCHEDULER_TYPE}" STREQUAL "SCHEDULER_CFS"
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OR "${SCHEDULER_TYPE}" STREQUAL "SCHEDULER_EDF"
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OR "${SCHEDULER_TYPE}" STREQUAL "SCHEDULER_RM"
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OR "${SCHEDULER_TYPE}" STREQUAL "SCHEDULER_AEDF")
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# Add the define stating which scheduler is currently active.
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add_definitions(-D${SCHEDULER_TYPE})
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# Notify the type of scheduler.
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message(STATUS "Setting scheduler type to ${SCHEDULER_TYPE}.")
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else()
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message(FATAL_ERROR "Scheduler type ${SCHEDULER_TYPE} is not valid.")
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endif()
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# =============================================================================
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# Add the video option.
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set(VIDEO_TYPE
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"VGA_TEXT_MODE"
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CACHE STRING "Chose the type of video: VGA_TEXT_MODE VGA_MODE_320_200_256 VGA_MODE_640_480_16 VGA_MODE_720_480_16")
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# List of video tpes.
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set_property(CACHE VIDEO_TYPE PROPERTY STRINGS VGA_TEXT_MODE VGA_MODE_320_200_256 VGA_MODE_640_480_16 VGA_MODE_720_480_16)
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# Check which VIDEO is currently active and export the related macro.
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if("${VIDEO_TYPE}" STREQUAL "VGA_TEXT_MODE"
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OR "${VIDEO_TYPE}" STREQUAL "VGA_MODE_320_200_256"
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OR "${VIDEO_TYPE}" STREQUAL "VGA_MODE_640_480_16"
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OR "${VIDEO_TYPE}" STREQUAL "VGA_MODE_720_480_16")
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add_definitions(-D${VIDEO_TYPE})
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message(STATUS "Setting video type to ${VIDEO_TYPE}.")
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else()
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message(FATAL_ERROR "Video type ${VIDEO_TYPE} is not valid.")
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endif()
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# =============================================================================
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# Warning flags.
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wpedantic")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pedantic-errors")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-function")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-variable")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unknown-pragmas")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-unused-but-set-variable")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99")
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# Set the compiler options.
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostdlib")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -nostdinc")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fomit-frame-pointer")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-builtin")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-pic")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-stack-protector")
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if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fcommon")
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endif()
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=i686")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
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if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ggdb")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0")
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add_definitions(-DDEBUG)
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elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O3")
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add_definitions(-DRELEASE)
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endif(CMAKE_BUILD_TYPE STREQUAL "Debug")
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# =============================================================================
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# Enable specific compilers for ASM.
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enable_language(ASM)
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# Find the NASM compiler.
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find_program(
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ASM_COMPILER
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NAMES nasm
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HINTS /usr/bin/ ${CMAKE_SOURCE_DIR}/third_party/nasm/bin
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)
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# Check that we have found the compiler.
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if(NOT ASM_COMPILER)
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message(FATAL_ERROR "ASM compiler not found!")
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endif(NOT ASM_COMPILER)
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# Set the asm compiler.
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set(CMAKE_ASM_COMPILER ${ASM_COMPILER})
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# Set the assembly compiler flags.
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set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -f elf")
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set(CMAKE_ASM_COMPILE_OBJECT "<CMAKE_ASM_COMPILER> <FLAGS> -o <OBJECT> <SOURCE>")
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if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -g")
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set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -O0")
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set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -F dwarf")
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elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
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set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -g")
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set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} -O3")
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endif(CMAKE_BUILD_TYPE STREQUAL "Debug")
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# =============================================================================
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# Add the includes.
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include_directories(inc ../libc/inc)
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# =============================================================================
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# Define the list of files.
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set(KERNEL_SOURCES
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src/kernel.c
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src/multiboot.c
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src/devices/pci.c
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src/devices/fpu.c
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src/drivers/ata.c
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src/drivers/rtc.c
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src/drivers/fdc.c
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src/drivers/mouse.c
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src/drivers/keyboard/keyboard.c
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src/drivers/keyboard/keymap.c
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src/fs/initrd.c
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src/fs/vfs.c
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src/fs/read_write.c
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src/fs/open.c
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src/fs/stat.c
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src/fs/readdir.c
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src/fs/procfs.c
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src/fs/ioctl.c
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src/fs/namei.c
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src/fs/ext2.c
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src/hardware/timer.c
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src/hardware/cpuid.c
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src/hardware/pic8259.c
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src/io/port_io.c
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src/io/mm_io.c
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src/io/video.c
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src/io/stdio.c
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src/io/debug.c
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src/io/proc_video.c
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src/io/proc_running.c
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src/io/proc_system.c
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src/io/vga/vga.c
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src/ipc/msg.c
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src/ipc/sem.c
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src/ipc/shm.c
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src/kernel/sys.c
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src/klib/assert.c
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src/klib/ctype.c
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src/klib/mutex.c
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src/klib/string.c
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src/klib/vsprintf.c
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src/klib/vscanf.c
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src/klib/time.c
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src/klib/libgen.c
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src/klib/strerror.c
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src/klib/math.c
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src/klib/fcvt.c
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src/klib/spinlock.c
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src/klib/rbtree.c
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src/klib/ndtree.c
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src/klib/hashmap.c
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src/klib/list.c
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src/mem/kheap.c
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src/mem/paging.c
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src/mem/slab.c
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src/mem/vmem_map.c
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src/mem/zone_allocator.c
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src/elf/elf.c
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src/descriptor_tables/gdt.c
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src/descriptor_tables/gdt.S
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src/descriptor_tables/interrupt.c
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src/descriptor_tables/exception.c
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src/descriptor_tables/interrupt.S
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src/descriptor_tables/exception.S
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src/descriptor_tables/idt.c
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src/descriptor_tables/idt.S
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src/descriptor_tables/tss.c
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src/descriptor_tables/tss.S
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src/process/scheduler_algorithm.c
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src/process/scheduler.c
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src/process/process.c
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src/process/wait.c
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src/process/user.S
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src/sys/utsname.c
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src/sys/module.c
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src/system/errno.c
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src/system/panic.c
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src/system/printk.c
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src/system/signal.c
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src/system/syscall.c
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)
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# =============================================================================
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# Add kernel library.
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if(USE_BUDDY_SYSTEM)
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# Add the library with `buddysystem.c`.
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add_library(${KERNEL_NAME} ${KERNEL_SOURCES} src/mem/buddysystem.c)
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else(USE_BUDDY_SYSTEM)
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# Add the library without `buddysystem.c`.
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add_library(${KERNEL_NAME} ${KERNEL_SOURCES})
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# Link the exercise libraries.
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target_link_libraries(${KERNEL_NAME} ${BUDDY_SYSTEM_FILE})
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endif(USE_BUDDY_SYSTEM)
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# =============================================================================
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# Add bootloader library.
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add_library(${BOOTLOADER_NAME} src/boot.c src/boot.S)
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# =============================================================================
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# Build the kernel.
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add_custom_target(
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kernel-bootloader.bin ALL
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COMMAND ${CMAKE_LINKER} -melf_i386 -static --oformat elf32-i386 --output kernel.bin --script ${CMAKE_CURRENT_SOURCE_DIR}/kernel.lds -Map kernel.map -u kmain
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$<TARGET_FILE_NAME:${KERNEL_NAME}> ${BUDDY_SYSTEM_FILE}
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COMMAND objcopy -I binary -O elf32-i386 -B i386 kernel.bin kernel.bin.o
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COMMAND ${CMAKE_LINKER} -melf_i386 -static --oformat elf32-i386 --output kernel-bootloader.bin --script ${CMAKE_CURRENT_SOURCE_DIR}/boot.lds -Map kernel-bootloader.map
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kernel.bin.o $<TARGET_FILE_NAME:${BOOTLOADER_NAME}>
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DEPENDS ${KERNEL_NAME}
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DEPENDS ${BOOTLOADER_NAME}
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)
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