prog: add system management service

programs/systemd/CMakeLists.txt

@@ -0,0 +1,10 @@
+file(GLOB sources *.c)
+add_executable(systemd ${sources})
+target_link_libraries(systemd libc libc-rt liblaunch libmango)
+
+sysroot_add_program(
+	NAME systemd
+	BIN_DIR /usr/bin)
+bsp_add_program(
+	NAME systemd
+	BIN_DIR /usr/bin)

programs/systemd/main.c

@@ -0,0 +1,4 @@
+int main(void)
+{
+	return 0;
+}