On 7/24/07, Andrew Cagney <[EMAIL PROTECTED]> wrote:
David Mosberger-Tang wrote:
> Jose,
>
> On 7/12/07, Jose Flavio Aguilar Paulino <[EMAIL PROTECTED]> 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?
Eh? If "long double" doesn't match the host's format, you're screwed
anyhow. That's why I'd suggest to declare fpreg_t based on
"unw_word_t" or something like that, like we do on ia64, for example.
--david
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