[Qemu-devel] Determine simulated pc during an exception

[Qemu-devel] Determine simulated pc during an exception

[eady]

In the QEMU internals docs under exception support the following is 
stated... "The simulated program counter is found by retranslating the 
corresponding basic block and by looking where the host program counter 
was at the exception point."

Can anyone point me to the place in the code where the simulated program 
counter is determined after an exception?

Thanks

Re: [Qemu-devel] Determine simulated pc during an exception

[Paul Brook]

> Can anyone point me to the place in the code where the simulated program
> counter is determined after an exception?

cpu_restore_state

Paul

Re: [Qemu-devel] Determine simulated pc during an exception

[eady]

Thanks Paul for the reply, I don't see how this function is called 
though by the exception handler. The way I understand it is that an 
exception is raised via raise_interrupt(exception_index, 0, 0, 0); in 
helper.c which in turn calls raise_interrupt() that sends the control 
flow back to the main execution loop via a longjmp and then 
do_interrupt() is called from there.  Where am I not making the connection?

Thanks,
Nuri

Paul Brook wrote:
>> Can anyone point me to the place in the code where the simulated program
>> counter is determined after an exception?
>>     
>
> cpu_restore_state
>
> Paul
>
>
>