Enrico Fraccaroli
302 lines
11 KiB
CMake
302 lines
11 KiB
CMake
# =============================================================================
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# Set the minimum required version of cmake.
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cmake_minimum_required(VERSION 3.1...3.22)
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# Initialize the project.
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project(kernel C ASM)
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# =============================================================================
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# Set the main file names.
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set(KERNEL_NAME kernel)
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set(BOOTLOADER_NAME kernel_bootloader)
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set(BUDDY_SYSTEM_NAME kernel_memory)
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set(BUDDY_SYSTEM_FILE ${PROJECT_SOURCE_DIR}/src/mem/libbuddysystem.a)
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# =============================================================================
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# OPTIONS
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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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# Enables cache tracing.
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option(ENABLE_CACHE_TRACE "Enables cache tracing." OFF)
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# Enables memory allocation tracing.
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option(ENABLE_ALLOC_TRACE "Enables memory allocation tracing." OFF)
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# =============================================================================
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# ASSEMBLY
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# =============================================================================
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# Enable the assembly language.
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enable_language(ASM)
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# Find the NASM compiler.
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find_program(ASM_COMPILER NAMES nasm HINTS /usr/bin/ /usr/local/bin/)
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# Mark the variable ASM_COMPILER as advanced.
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mark_as_advanced(ASM_COMPILER)
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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 "${CMAKE_ASM_FLAGS} -O3")
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endif(CMAKE_BUILD_TYPE STREQUAL "Debug")
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# =============================================================================
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# C WARNINGs
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# =============================================================================
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# Warning flags.
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set(CMAKE_C_FLAGS "${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 "${CMAKE_C_FLAGS} -std=gnu99")
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# Disable some specific warnings.
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set(CMAKE_C_FLAGS "${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 "${CMAKE_C_FLAGS} -Wno-missing-braces")
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# Set the compiler options.
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -static")
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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 "${CMAKE_C_FLAGS} -fno-builtin")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-stack-protector")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fno-pic")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fomit-frame-pointer")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
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if(CMAKE_C_COMPILER_VERSION VERSION_GREATER_EQUAL 10)
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fcommon")
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endif()
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -march=i686")
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if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ggdb")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O0")
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elseif(CMAKE_BUILD_TYPE STREQUAL "Release")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3")
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endif(CMAKE_BUILD_TYPE STREQUAL "Debug")
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# =============================================================================
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# SOURCES
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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/ps2.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/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} ${BUDDY_SYSTEM_FILE})
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endif(USE_BUDDY_SYSTEM)
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# Add the includes.
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target_include_directories(
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${KERNEL_NAME} PUBLIC
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${CMAKE_SOURCE_DIR}/mentos/inc
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${CMAKE_SOURCE_DIR}/libc/inc
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)
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# Define that this code is kernel code.
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target_compile_definitions(
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${KERNEL_NAME} PUBLIC
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__KERNEL__
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)
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# =============================================================================
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# Enables cache tracing.
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if(ENABLE_CACHE_TRACE)
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target_compile_definitions(${KERNEL_NAME} PUBLIC ENABLE_CACHE_TRACE)
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endif(ENABLE_CACHE_TRACE)
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# =============================================================================
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# Enables memory allocation tracing.
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if(ENABLE_ALLOC_TRACE)
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target_compile_definitions(${KERNEL_NAME} PUBLIC ENABLE_ALLOC_TRACE)
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endif(ENABLE_ALLOC_TRACE)
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# =============================================================================
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# Set the list of valid scheduling options.
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set(SCHEDULER_TYPES SCHEDULER_RR SCHEDULER_PRIORITY SCHEDULER_CFS SCHEDULER_EDF SCHEDULER_RM SCHEDULER_AEDF)
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# Add the scheduling option.
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set(SCHEDULER_TYPE "SCHEDULER_RR" CACHE STRING "Chose the type of scheduler: ${SCHEDULER_TYPES}")
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# List of schedulers.
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set_property(CACHE SCHEDULER_TYPE PROPERTY STRINGS ${SCHEDULER_TYPES})
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# Check which scheduler is currently active and export the related macro.
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list(FIND SCHEDULER_TYPES ${SCHEDULER_TYPE} INDEX)
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if(index EQUAL -1)
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message(FATAL_ERROR "Scheduler type ${SCHEDULER_TYPE} is not valid.")
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else()
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# Add the define stating which scheduler is currently active.
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target_compile_definitions(${KERNEL_NAME} PUBLIC ${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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endif()
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# =============================================================================
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# Set the list of valid video driver options.
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set(VIDEO_TYPES VGA_TEXT_MODE VGA_MODE_320_200_256 VGA_MODE_640_480_16 VGA_MODE_720_480_16)
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# Add the video driver option.
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set(VIDEO_TYPE "VGA_TEXT_MODE" CACHE STRING "Chose the type of video driver: ${VIDEO_TYPES}")
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# List of video tpes.
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set_property(CACHE VIDEO_TYPE PROPERTY STRINGS ${VIDEO_TYPES})
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# Check which video driver is currently active and export the related macro.
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list(FIND VIDEO_TYPES ${VIDEO_TYPE} INDEX)
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if(index EQUAL -1)
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message(FATAL_ERROR "Video type ${VIDEO_TYPE} is not valid.")
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else()
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# Add the define stating which video driver is currently active.
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target_compile_definitions(${KERNEL_NAME} PUBLIC ${VIDEO_TYPE})
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# Notify the type of video driver.
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message(STATUS "Setting vide type to ${VIDEO_TYPE}.")
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endif()
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# =============================================================================
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# Set the list of valid keyboard mappings.
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set(KEYMAP_TYPES KEYMAP_US KEYMAP_IT)
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# Add the keyboard mapping.
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set(KEYMAP_TYPE "KEYMAP_US" CACHE STRING "Chose the type of keyboard mapping: ${KEYMAP_TYPES}")
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# List of keyboard mappings.
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set_property(CACHE KEYMAP_TYPE PROPERTY STRINGS ${KEYMAP_TYPES})
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# Check which keyboard mapping is currently active and export the related macro.
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list(FIND KEYMAP_TYPES ${KEYMAP_TYPE} INDEX)
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if(index EQUAL -1)
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message(FATAL_ERROR "keyboard mapping ${KEYMAP_TYPE} is not valid.")
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else()
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# Add the define stating which keyboard mapping is currently active.
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target_compile_definitions(${KERNEL_NAME} PUBLIC USE_${KEYMAP_TYPE})
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# Notify the type of keyboard mapping.
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message(STATUS "Setting keyboard mapping to ${KEYMAP_TYPE}.")
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endif()
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# =============================================================================
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# Add bootloader library.
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add_library(
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${BOOTLOADER_NAME}
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src/boot.c
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src/boot.S
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)
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# Add the includes.
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target_include_directories(
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${BOOTLOADER_NAME} PUBLIC
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${CMAKE_SOURCE_DIR}/mentos/inc
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${CMAKE_SOURCE_DIR}/libc/inc
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)
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# Define that this code is kernel code.
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target_compile_definitions(
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${BOOTLOADER_NAME} PUBLIC
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__KERNEL__
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)
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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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