Take a look at gcore. That will let you checkpoint memory mappings and
registers. The dragonfly implementation also keeps track of the sbrk
value and open file handles which you will need to handle separately.
Restoring the mappings and register state should be straightforward.
I'm not sure at how
I found that checkpointing and restart of a process is available for
DragonFlyBSD.
I need this feature for FreeBSD. How can I checkpoint simple programs in
FreeBSD such that they can be restored and run from the checkpointed state?
For example, can someone tell me the steps so that I can checkpoint
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