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[Xen-devel] [PATCH] Mini-os get_current() fixup

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] [PATCH] Mini-os get_current() fixup
From: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>
Date: Mon, 15 Oct 2007 17:23:32 +0100
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Hi,

I'm currently playing with mini-os, and noticed bogus code:

0x00019301 <do_page_fault+81>:  mov    $0x1,%ecx
0x00019306 <do_page_fault+86>:  mov    $0xffffe000,%eax
0x0001930b <do_page_fault+91>:  mov    %ecx,0x32980
0x00019311 <do_page_fault+97>:  and    %esp,%edx
0x00019313 <do_page_fault+99>:  mov    (%edx),%ecx
0x00019315 <do_page_fault+101>: mov    (%ecx),%eax

Which is supposed to approximately correspond to get_current(). It
happens that %edx is never set to 0xfffff000. The attached patch fixes
that.

Samuel

Attachment: patch
Description: Text document

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