Re: I am trying to fixes a issue with QEMU with VxWorks.

[Stefan Hajnoczi]

On Mon, Mar 09, 2020 at 11:26:07AM +0800, 罗勇刚(Yonggang Luo) wrote:
> When I am running QEMU to simulating PowerPC.
> And after running the following powerpc code:
> 00e2b5dc <intUnlock>:
> intUnlock():
>   e2b5dc: 54 63 04 20 rlwinm r3,r3,0,16,16
>   e2b5e0: 7c 80 00 a6 mfmsr r4
>   e2b5e4: 7c 83 1b 78 or r3,r4,r3
>   e2b5e8: 7c 60 01 24 mtmsr r3
>   e2b5ec: 4c 00 01 2c isync
>   e2b5f0: 4e 80 00 20 blr
> 
> The QEMU are getting stuck and can not running the following instructions,
> What I need to do to inspect which instruction are getting stuck and how to
> fix it?
> Any means to debugging that.

CCing ppc maintainers.

You could begin debugging this using QEMU's GDB stub (the -s
command-line option), TCG debug output (the -d command-line option), and
the HMP "info status" command to check that the CPU is running.

Good luck!

Stefan

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