[RFA/RFC] Add dump and load command to process record and replay

[Michael Snyder]

Hui Zhu wrote:
> Hi,
> 
> This patch add command record dump and record load to make prec can
> dump execution log to a file and load it later.  And load can work
> with core file.
> 
> And I include "mem_entry_not_accessible"(not_replay) patch to this
> patch because when replay with core file, some address in lib cannot
> be read and write.

Augh!  No -- please, this is lumping too much together.
Smaller, more discrete patches are much easier to review.

1) You already have a patch thread for the memory-not-accessible
change -- let's finish that idea there, not lump it in here.

2) I think the idea of saving and restoring the recording
to a file is GREAT -- but can you please give us a patch
that adds that, by itself.

3) I don't really understand how core files fit into this,
but I'd love to discuss that idea in a separate patch thread.
It really adds a lot of complexity to this patch, which it seems
to me could be much simpler and easier to review if it added
only one thing at a time.