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Re: [Libunwind-devel] PowerPC64 Support finished


From: Andrew Cagney
Subject: Re: [Libunwind-devel] PowerPC64 Support finished
Date: Tue, 24 Jul 2007 09:45:19 -0400
User-agent: Thunderbird 1.5.0.12 (X11/20070530)

David Mosberger-Tang wrote:
Jose,

On 7/12/07, Jose Flavio Aguilar Paulino <address@hidden> wrote:

- I have to create a new kind of registers VREGS, because PowerPC has
vector registers (Special ones 128bits longs only for special
instructions) and the libunwind has General Use Registers and Flating
Pointer Registers. So I had to create a dummy register array in x86.

Isn't a vector register the same size as a "long double"?  If so, do
you really need to add the *vregs() interface?  I think you could just
use the *fpregs() interface instead.

This needs to work cross-platform; can you assume that a _host's_ <<long double>> is a 128-bit type?

Andrew





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