Re: [RFA] i386 segment base support

Mark Kettenis
2010-05-20T08:22:52Z

> From: Hui Zhu <teawater@gmail.com>
> Date: Thu, 20 May 2010 15:34:17 +0800
>
> Hi guys,
>
> I update the old patch that I post to support segment base value.

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.