Re: PATCH: Add xmlRegisters= to qsupported query

[Eli Zaretskii <eliz at gnu dot org>]

> Date: Mon, 29 Mar 2010 07:13:28 -0700
> From: "H.J. Lu" <hjl.tools@gmail.com>
> Cc: gdb-patches@sourceware.org
> 
> >> +target description. ?If the stub sees @samp{xmlRegisters=} with
> >> +target specfic strings separated by comma, it can send @value{GDBN}
> > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?^^^^^^^^
> > "by a comma". ?Also, what do you mean by "it can send", why "can"?
> 
> I will add `a'.
> 
> > Doesn't it always send the XML description?
> 
> Before XML was enabled on x86, we sent
> 
> "@<target>\
> <architecture>i386</architecture>\
> <osabi>GNU/Linux</osabi>\
> </target>"
> 
> It isn't the "real" XML target description since it doesn't describe anything.

So how about this text instead:

 If the stub sees @samp{xmlRegisters=} with target specific strings
 separated by a comma, it will send either an XML target description
 or an XML stub that states only the architecture and the OSABI.

> >> + ?/* Tell remote stub that we support XML target description. ?*/
> >> + ?register_remote_support_xml ("x86");
> >
> > A possibly dumb question: what effect will this change in i386-tdep.c
> > have on i386 targets that don't support remote debugging? ?How about
> 
> Did you mean remote.o wasn't linked in? Can that happen?

I don't know.  The question is, will register_remote_support_xml be
always available fro an i386 target?

Thanks.