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xen-devel
[Xen-devel] Re: [patch 12/26] Xen-paravirt_ops: Fix patch site clobbers
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To: |
Zachary Amsden <zach@xxxxxxxxxx> |
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Subject: |
[Xen-devel] Re: [patch 12/26] Xen-paravirt_ops: Fix patch site clobbers to include return register |
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From: |
Jeremy Fitzhardinge <jeremy@xxxxxxxx> |
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Date: |
Thu, 01 Mar 2007 16:58:56 -0800 |
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Cc: |
xen-devel@xxxxxxxxxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxx, Rusty Russell <rusty@xxxxxxxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, Chris Wright <chrisw@xxxxxxxxxxxx>, Andi Kleen <ak@xxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> |
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Thu, 01 Mar 2007 16:58:07 -0800 |
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Zachary Amsden wrote:
>>
>> Things like what? Do you mean the %[foo] asm parameter syntax? I think
>> those versions are no longer supported - Arjan posted a patch a few days
>> ago to convert a pile of asms to this form. Or do you mean something
>> else?
>>
>
> I meant having an output in the clobber list,
There's no output in the clobber list, just "memory" and "cc". The
paravirt_clobber() is the stuff which gets put in the .parainstructions
section which tells the patcher what registers are expected to be
modified at that callsite (including both temp and output registers).
J
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