Re: [RFA] i386 segment base support

Daniel Jacobowitz
2010-05-20T12:54:59Z

On Thu, May 20, 2010 at 10:19:54AM +0200, Mark Kettenis wrote:
> Sorry, but we still need to discuss what programming model you intend
> to support before I will consider looking at diffs.
>
> Currently, on i386, GDB supports a fully flat 32-bit model, with one
> small exception on platforms that support thread-local-storage. In
> that model you can assume that all the segment bases are 0 except for
> %gs. If that's all that people are interested in, I don't think we
> should bother with segment bases for %cs, %ds, %es, %fs and %ss.
>
> If people want to support fully segmented memory in GDB, then what you
> propose is probably not enough, at least not for 32-bit mode.

This position confuses me. Isn't "very limited support for segmented
memory" better than "no support for segmented memory"?

--
Daniel Jacobowitz
CodeSourcery