Adam,
You could do this reasonably easily in two ways. A) Like you said
modify the m5term program to send a script in. The problem with this
is the simulation wouldn't be deterministic unless you waited for an
m5term connection before continuing the simulation (this could be
easily done however).
B) the readfile option is implemented using what we term an m5
instruction. These are instructions that are encoded in the reserved
instruction space in the Alpha ISA. The startup script on the image
executes this readfile instruction with an argument register pointing
to a buffer in the simulated memory space and the simulator copies
the text in the readfile option into the simulated systems buffer.
The startup script then executes this. Depending on what exactly
you're trying to do, you could have a program running on the image
that does this readfile call later after you restore from a
checkpoint (perhaps by adding an additional instruction that returns
true immediately after restoring from a checkpoint and once read
returns 0.
Hope this helps,
Ali
On Apr 26, 2006, at 9:33 PM, Adam Kaplan wrote:
Hello all,
I was wondering if anyone has been successful in creating some kind of
batch-file of Linux/M5 commands and sending these to the full-system
shell (possibly via the m5term program). I don't believe I can use
a .rcS
file for this specific set of commands, as I want to run them after
restarting simulation from a checkpoint. (In this case, the
checkpoint
was taken well after system-boot.)
A quick examination of the m5term source does not indicate any sort
of batch input option. Is there any other way to do this
(and if not, would it be too difficult for me to hack it into the
m5term?)
Thanks!
Adam
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