target sim question

[Andrew Cagney]

> How may I use this instruction? , actually I tried to execute "target sim" on 
> gdb's prompt, but I get the message :
> 
> (gdb) target sim
> Error: Undefined target command: "sim".  Try "help target".

It would appear that your target doesn't have a built-in simulator.

> What should I do?  I need to know how to use a simulator, than I want to 
> define my own simulator for a new processor. Any idea? 

You'll need to implement a library that exports the interface described 
in include/gdb/remote-sim.h.  See the sim/* directory for examples.

Andrew



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