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CMakeLists.txt
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CMakeLists.txt
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cmake_minimum_required(VERSION 3.11...3.19)
project(simplekernel)
include(cmake/HelpingFunctions.cmake)
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/CMake)
# Only do these if this is the main project, and not if it is included through
# add_subdirectory
if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
# Optionally set things like CMAKE_CXX_STANDARD,
# CMAKE_POSITION_INDEPENDENT_CODE here
# Let's ensure -std=c++xx instead of -std=g++xx
set(CMAKE_CXX_EXTENSIONS OFF)
# Let's nicely support folders in IDE's
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
# Testing only available if this is the main app. Note this needs to be done
# in the main CMakeLists since it calls enable_testing, which must be in the
# main CMakeLists.
# include(CTest)
# Docs only available if this is the main app
find_package(Doxygen)
if(Doxygen_FOUND)
add_subdirectory(docs)
else()
message(STATUS "Doxygen not found, not building docs")
endif()
endif()
set(CMAKE_C_FLAGS "-m32 -nostdlib -nostdinc -fno-builtin -fno-stack-protector -nostartfiles -nodefaultlibs -Wall -Wextra -Werror -c")
set(CMAKE_ASM_NASM_OBJECT_FORMAT "elf")
# setting current dir for easy use
set(CRT_DIR ${CMAKE_CURRENT_LIST_DIR})
# setting link.ld
set(CMAKE_LINKER_FILE "${CRT_DIR}/smkrnl/arch/i386/linker.ld")
set(CMAKE_LINKER_FLAGS " -T ${CMAKE_LINKER_FILE} -melf_i386")
# setting the kernel files
add_subdirectory(smkrnl)
add_subdirectory(smkrnl/arch/i386)
target_link_libraries(kernel_file_object KERNEL_ASM_OBJECTS)