Setup cmake project

cmake/kernel/CMakeLists.txt

@@ -0,0 +1,17 @@
+cmake_minimum_required(VERSION 3.14)
+
+project(kernel)
+message(STATUS "Project " ${PROJECT_NAME})
+
+include_directories(${CHURLOS_SRC_DIR})
+
+add_library(${PROJECT_NAME} STATIC ${SOURCE_FILES})
+
+# Add subdirectories
+add_subdirectory(demo)
+add_subdirectory(event)
+add_subdirectory(interrupt)
+add_subdirectory(log)
+add_subdirectory(memory)
+add_subdirectory(process)
+add_subdirectory(system)