Hi, I've realised though I'm not sure this may work as intended. Do the > checkpoints gem5 generates include a memory dump of instructions loaded > from a binary as well as stack/heap working data too? I'm intending for all > instructions to be loaded out of the binary I pass on checkpoint restore, > rather than out of the checkpoint. Is anybody able to confirm for me > whether or not this is actually the case?
I doubt that restoring will work the way you intend to. Based on my understanding, the checkpoint contains a dump of the physical memory and the architectural state and the simulation will restore from exactly the same state/memory image. That means the simulation will resume with the old program loaded into the memory. -Ayaz On Wed, Jun 14, 2023 at 4:09 AM muke101 via gem5-users <gem5-users@gem5.org> wrote: > I'm generating checkpoints from spec for a research project. I have a use > case where I'm introducing novel instructions but they only have OoO core > semantics rather than program semantics, and any binary I modify to include > them has the exact same addresses for functions, basic blocks etc as an > unmodified binary. > > My method to generate checkpoints has been to run a binary without novel > instructions natively to generate simpoints, generate the checkpoints with > gem5 passing the unmodified binaries, then restore the checkpoints passing > the modified binaries that have the novel instructions. > > I've realised though I'm not sure this may work as intended. Do the > checkpoints gem5 generates include a memory dump of instructions loaded > from a binary as well as stack/heap working data too? I'm intending for all > instructions to be loaded out of the binary I pass on checkpoint restore, > rather than out of the checkpoint. Is anybody able to confirm for me > whether or not this is actually the case? > > Thanks. > > > Sent from Proton Mail mobile > > > _______________________________________________ > gem5-users mailing list -- gem5-users@gem5.org > To unsubscribe send an email to gem5-users-le...@gem5.org >
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