banan-os/kernel/CMakeLists.txt

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cmake_minimum_required(VERSION 3.26)
project(kernel CXX ASM)
if("${BANAN_ARCH}" STREQUAL "x86_64")
set(ELF_FORMAT elf64-x86-64)
elseif("${BANAN_ARCH}" STREQUAL "i386")
set(ELF_FORMAT elf32-i386)
endif()
set(KERNEL_SOURCES
font/prefs.psf.o
kernel/ACPI.cpp
kernel/APIC.cpp
kernel/CPUID.cpp
kernel/Debug.cpp
kernel/Device/Device.cpp
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kernel/Device/NullDevice.cpp
kernel/Errors.cpp
kernel/Font.cpp
kernel/FS/DevFS/FileSystem.cpp
kernel/FS/Ext2.cpp
kernel/FS/Inode.cpp
kernel/FS/Pipe.cpp
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kernel/FS/RamFS/FileSystem.cpp
kernel/FS/RamFS/Inode.cpp
kernel/FS/VirtualFileSystem.cpp
kernel/Input/PS2Controller.cpp
kernel/Input/PS2Keyboard.cpp
kernel/Input/PS2Keymap.cpp
kernel/InterruptController.cpp
kernel/kernel.cpp
kernel/Memory/FixedWidthAllocator.cpp
kernel/Memory/GeneralAllocator.cpp
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kernel/Memory/Heap.cpp
kernel/Memory/kmalloc.cpp
kernel/Memory/PhysicalRange.cpp
kernel/Memory/VirtualRange.cpp
kernel/OpenFileDescriptorSet.cpp
kernel/Panic.cpp
kernel/PCI.cpp
kernel/PIC.cpp
kernel/Process.cpp
kernel/Scheduler.cpp
kernel/Semaphore.cpp
kernel/Serial.cpp
kernel/SpinLock.cpp
kernel/SSP.cpp
kernel/Storage/ATABus.cpp
kernel/Storage/ATAController.cpp
kernel/Storage/ATADevice.cpp
kernel/Storage/DiskCache.cpp
kernel/Storage/StorageDevice.cpp
kernel/Syscall.cpp
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kernel/Syscall.S
kernel/Terminal/TTY.cpp
kernel/Terminal/VesaTerminalDriver.cpp
kernel/Thread.cpp
kernel/Timer/PIT.cpp
kernel/Timer/RTC.cpp
kernel/Timer/Timer.cpp
icxxabi.cpp
)
#set(ENABLE_KERNEL_UBSAN True)
if(ENABLE_KERNEL_UBSAN)
set(KERNEL_SOURCES ${KERNEL_SOURCES} ubsan.cpp)
endif()
if("${BANAN_ARCH}" STREQUAL "x86_64")
set(KERNEL_SOURCES
${KERNEL_SOURCES}
arch/x86_64/boot.S
arch/x86_64/GDT.cpp
arch/x86_64/IDT.cpp
arch/x86_64/interrupts.S
arch/x86_64/PageTable.cpp
arch/x86_64/Signal.S
arch/x86_64/Thread.S
)
elseif("${BANAN_ARCH}" STREQUAL "i386")
set(KERNEL_SOURCES
${KERNEL_SOURCES}
arch/i386/boot.S
arch/i386/GDT.cpp
arch/i386/IDT.cpp
arch/i386/MMU.cpp
arch/i386/SpinLock.S
arch/i386/Thread.S
)
else()
message(FATAL_ERROR "unsupported architecure ${BANAN_ARCH}")
endif()
set(BAN_SOURCES
../BAN/BAN/New.cpp
../BAN/BAN/String.cpp
../BAN/BAN/StringView.cpp
../BAN/BAN/Time.cpp
)
set(LIBC_SOURCES
../libc/ctype.cpp
../libc/string.cpp
)
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set(LIBELF_SOURCES
../LibELF/LibELF/ELF.cpp
)
set(KERNEL_SOURCES
${KERNEL_SOURCES}
${BAN_SOURCES}
${LIBC_SOURCES}
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${LIBELF_SOURCES}
)
add_executable(kernel ${KERNEL_SOURCES})
add_dependencies(kernel headers)
target_compile_definitions(kernel PUBLIC __is_kernel)
target_compile_definitions(kernel PUBLIC __arch=${BANAN_ARCH})
target_compile_options(kernel PUBLIC -O2 -g)
target_compile_options(kernel PUBLIC -Wno-literal-suffix)
target_compile_options(kernel PUBLIC -fno-rtti -fno-exceptions)
target_compile_options(kernel PUBLIC -fmacro-prefix-map=${CMAKE_CURRENT_SOURCE_DIR}=.)
target_compile_options(kernel PUBLIC -fstack-protector -ffreestanding -Wall -Wextra -Werror=return-type -Wstack-usage=1024 -fno-omit-frame-pointer -mgeneral-regs-only)
if(ENABLE_KERNEL_UBSAN)
target_compile_options(kernel PUBLIC -fsanitize=undefined)
endif()
if("${BANAN_ARCH}" STREQUAL "x86_64")
target_compile_options(kernel PUBLIC -mcmodel=kernel -mno-red-zone -mno-mmx)
target_link_options(kernel PUBLIC LINKER:-z,max-page-size=4096)
target_link_options(kernel PUBLIC LINKER:-T,${CMAKE_CURRENT_SOURCE_DIR}/arch/x86_64/linker.ld)
elseif("${BANAN_ARCH}" STREQUAL "i386")
target_link_options(kernel PUBLIC LINKER:-T,${CMAKE_CURRENT_SOURCE_DIR}/arch/i386/linker.ld)
endif()
target_link_options(kernel PUBLIC -ffreestanding -nostdlib)
add_custom_target(crt0
COMMAND ${CMAKE_CXX_COMPILER} -c ${CMAKE_CURRENT_SOURCE_DIR}/arch/${BANAN_ARCH}/crt0.S -o ${BANAN_LIB}/crt0.o
DEPENDS headers
)
add_custom_target(kernel-headers
COMMAND ${CMAKE_COMMAND} -E copy_directory_if_different ${CMAKE_CURRENT_SOURCE_DIR}/include ${BANAN_INCLUDE}
DEPENDS sysroot
)
add_custom_target(kernel-install
COMMAND cp ${CMAKE_CURRENT_BINARY_DIR}/kernel ${BANAN_BOOT}/banan-os.kernel
DEPENDS kernel
)
execute_process(COMMAND ${CMAKE_CXX_COMPILER} -print-file-name=crtbegin.o OUTPUT_VARIABLE CRTBEGIN OUTPUT_STRIP_TRAILING_WHITESPACE)
execute_process(COMMAND ${CMAKE_CXX_COMPILER} -print-file-name=crtend.o OUTPUT_VARIABLE CRTEND OUTPUT_STRIP_TRAILING_WHITESPACE)
add_custom_command(
TARGET kernel PRE_LINK
COMMAND ${CMAKE_CXX_COMPILER} -MD -c ${CMAKE_CURRENT_SOURCE_DIR}/arch/${BANAN_ARCH}/crti.S ${COMPILE_OPTIONS}
COMMAND ${CMAKE_CXX_COMPILER} -MD -c ${CMAKE_CURRENT_SOURCE_DIR}/arch/${BANAN_ARCH}/crtn.S ${COMPILE_OPTIONS}
COMMAND cp ${CRTBEGIN} .
COMMAND cp ${CRTEND} .
)
add_custom_command(
TARGET kernel POST_BUILD
COMMAND x86_64-banan_os-strip ${CMAKE_CURRENT_BINARY_DIR}/kernel
)
add_custom_command(
OUTPUT font/prefs.psf.o
COMMAND cd ${CMAKE_CURRENT_SOURCE_DIR} && objcopy -O ${ELF_FORMAT} -B i386 -I binary font/prefs.psf ${CMAKE_CURRENT_BINARY_DIR}/font/prefs.psf.o
)
set(CMAKE_CXX_LINK_EXECUTABLE "${CMAKE_CXX_COMPILER} <CMAKE_CXX_LINK_FLAGS> <FLAGS> <LINK_FLAGS> -o <TARGET> ${CMAKE_CURRENT_BINARY_DIR}/crti.o ${CMAKE_CURRENT_BINARY_DIR}/crtbegin.o <OBJECTS> ${CMAKE_CURRENT_BINARY_DIR}/crtend.o ${CMAKE_CURRENT_BINARY_DIR}/crtn.o -lgcc ")