The gdb x86 function prologue parser

[Eli Zaretskii]

> Date: Fri, 10 Jun 2005 13:28:38 -0700
> From: Michael Snyder <msnyder@redhat.com>
> CC: Jason Molenda <jmolenda@apple.com>, gdb-patches@sources.redhat.com,
>         kettenis@jive.nl
> 
> Prologue parsing is a black art, on its way to becoming a
> lost art thanks to our increasing dependance on dwarf cfi.

There are still quite a few platforms that cannot rely on CFI.  Not to
mention that currently there are many situations where I can't get a
decent backtrace even with DWARF CFI.

> It would be great if Jason could preserve some of what he's
> having to relearn/reinvent -- but it wouldn't be fair of us
> to require this of him.

I didn't require, I said I'd appreciate if he did that.

Someone must remind people from time to time to try documenting the
internals.  Otherwise gdbint.texinfo will never get better.