embedded linux, application state freeze, relaunch

Question

We have an embedded application, now it requires its state to be saved and reloaded. Just like in PC games, where you save it before you have to go out and breath some fresh air

Answer 1

You want application checkpointing, so perhaps the Berkley Lab Checkpoint Restart library might help you.

You could perhaps use the mmap(2) system call, if you are sure all the data has fixed addresses, etc...

To know about your current memory segments and mappings, read (from your application) the /proc/self/maps file. There is also /proc/self/smaps etc. Learn more about proc(5), ie /proc/