lib: add libc and micro libc

lib/libc/CMakeLists.txt

@@ -0,0 +1,36 @@
+set(source_dirs string stdio)
+foreach (dir ${source_dirs})
+	file(GLOB dir_sources ${CMAKE_CURRENT_SOURCE_DIR}/${dir}/*.c)
+	file(GLOB dir_headers ${CMAKE_CURRENT_SOURCE_DIR}/${dir}/*.h)
+
+	set(sources ${sources} ${dir_sources})
+	set(headers ${headers} ${dir_headers})
+endforeach (dir)
+
+file(GLOB runtime_sources
+	${CMAKE_CURRENT_SOURCE_DIR}/runtime/${CMAKE_SYSTEM_PROCESSOR}/*.s)
+set_property(SOURCE ${runtime_sources} PROPERTY LANGUAGE C)
+
+set(public_include_dirs
+	${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+rosetta_add_library(SHARED
+	NAME libc
+	PUBLIC_INCLUDE_DIRS ${public_include_dirs}
+	SOURCES ${sources}
+	HEADERS ${headers})
+
+rosetta_add_object_library(
+	NAME libc-rt STATIC
+	SOURCES ${runtime_sources})
+
+sysroot_add_library(
+	NAME libc
+	HEADER_DIR /usr/include
+	LIB_DIR /usr/lib)
+sysroot_add_object_library(
+	NAME libc-rt
+	LIB_DIR /usr/lib)
+bsp_add_library(
+	NAME libc
+	LIB_DIR /usr/lib)