syscalls: start implementing some basic syscalls

src/tasking/exec_from_file.c

@@ -68,7 +68,7 @@ void exec_from_file(const char* filename)
 
     uint8_t* file;
 
-    int result = read_file("/ebalo/testfile", &file);
+    int result = read_file("/ebalo/aaa", &file);
     debug_log("result: %X\n", result);
     debug_log("buffer: %s\n", file);