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Re: [Qemu-devel] How does TCG gen host code for a TB?
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From: |
Sergey Fedorov |
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Subject: |
Re: [Qemu-devel] How does TCG gen host code for a TB? |
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Date: |
Fri, 11 Dec 2015 17:20:17 +0300 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 |
On 11.12.2015 06:43, Valerón JC wrote:
> I want to trace a bug in tcg, which for me, at some point, generate
> infinite loop TB chains, that's unexpected. and I've found the final
> TB(head, since they're chaining) which run in an infinite loop, and I
> know a very weird trick to 'disable' this bug, so I would like to
> track the tcg-ops for the TB, hope that I can figure what's wrong.
Hi,
You may find it useful to enable logging of TCG ops generated with '-d
op', as well as input and output assembly with '-d in_asm,out_asm'. '-D
<filename>' could be useful to output log to a file. Here are references
to documentation: http://qemu.weilnetz.de/qemu-doc.html#index-_002dd and
http://qemu.weilnetz.de/qemu-doc.html#index-_002dD.
Best,
Sergey