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[Qemu-devel] Re: [PATCH 0/2] simplify global register save/restore


From: Paolo Bonzini
Subject: [Qemu-devel] Re: [PATCH 0/2] simplify global register save/restore
Date: Sat, 13 Feb 2010 21:26:42 +0100
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.7) Gecko/20100120 Fedora/3.0.1-1.fc12 Lightning/1.0b2pre Thunderbird/3.0.1

On 02/13/2010 06:58 PM, Blue Swirl wrote:
V9 ABI gives more registers to application use.

Except that glibc uses those---in theory, as I see it, it should be compiled with fixed g2 and g3 to leave them to the application. I get it now.

It may be possible to make the workaround a big less ugly (I'm thinking of avoiding #undef/#define by using assembly). I made a patch (see attachment, just FYI), maybe sometime I'll try it using self-virtualized qemu.

Paolo

Attachment: sparc
Description: Text document


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