Which files specifically does it depend on? Rather than removing the
things that have dependencies, you might want to stub out the parser
generated files. Even though there could be a lot of .isa files, I
think only decoder.hh, decoder.cc, and *_exec.cc are generated, and
those just rely on there being a decode function with an appropriate
signature. There's also a file that describes the max number of
source/destination operands, and in your case it should be safe to
just set those to 1 (or 0, but there may be some gotchas with 0). I
haven't ever considered in depth the implications of a non isa_parser
supported CPU model so I may be oversimplifying.
Generally speaking, I think rather than try to remove the parts of M5
that ask your code to do things you can't do or that might not make
sense, you should attempt to do them, or stub them out and make them
panic if/when they're used. That would be very important if you wanted
to fold back into the main code base since I don't think we're
prepared to delete the simple CPU.
Gabe
Quoting Rathijit Sen <[email protected]>:
Hi,
We are trying to integrate Bochs x86 functional model into M5.
In order to achieve that we are trying to have our own cpu model
that does not use isa_parser generated files. In doing so, we had to
remove other CPU models like AtomicSimpleCPU, TimingSimpleCPU etc,
as they depend upon isa_parser generated files (and thus breaks
compilation). But we found out that src/cpu/base.cc (which is the
file for BaseCPU) also has dependencies on isa_parser generated
files. If we take off BaseCPU files from compilation, then many
other files like sim/pseudo_inst.cc etc are complaining as they have
dependencies on BaseCPU files.
We are a bit confused now. Can you please let us know on whether we
should try to remove BaseCPU?
Thanks
Arka
Rathijit
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