lib: add libmsg* ipc protocol libraries

lib/libmsg/CMakeLists.txt

@@ -0,0 +1,21 @@
+file(GLOB sources
+	${CMAKE_CURRENT_SOURCE_DIR}/*.c)
+file(GLOB headers
+	${CMAKE_CURRENT_SOURCE_DIR}/include/rosetta/msg.h
+	${CMAKE_CURRENT_SOURCE_DIR}/*.h)
+
+set(public_include_dirs
+	${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+rosetta_add_library(
+	NAME libmsg STATIC
+	PUBLIC_INCLUDE_DIRS ${public_include_dirs}
+	SOURCES ${sources}
+	HEADERS ${headers})
+
+sysroot_add_library(
+	NAME libmsg
+	HEADER_DIR /usr/include
+	LIB_DIR /usr/lib)
+
+target_link_libraries(libmsg libmango)

lib/libmsg/include/rosetta/msg.h

@@ -0,0 +1,15 @@
+#ifndef ROSETTA_MSG_H_
+#define ROSETTA_MSG_H_
+
+#define ROSETTA_MSG_MAGIC 0x9AB07D10U
+
+#include <stdint.h>
+
+struct rosetta_msg {
+	uint32_t msg_magic;
+	uint32_t msg_protocol;
+	uint16_t msg_id;
+	uint16_t msg_reserved;
+};
+
+#endif

lib/libmsg/msg.c

@@ -0,0 +1,3 @@
+void msg_tmp(void)
+{
+}