Re: RFA: New port: ia64-hp-openvms - the stub

[Tristan Gingold <gingold@adacore.com>]

On Feb 22, 2012, at 8:52 PM, Pedro Alves wrote:

> On 02/21/2012 04:30 PM, Tristan Gingold wrote:
>> 
>> On Feb 14, 2012, at 7:08 PM, Pedro Alves wrote:
> 
>>> I couldn't really tell, but you may want to consider looking into xml target
>>> descriptions.  At least reporting a description with the openvms osabi would
>>> be good.
>> 
>> I plan to fix the register issue soon, just be patient !
> 
> I am.  :-)  A description with at least the osabi is good so that gdb
> knows the target's osabi even if the user doesn't supply an executable.

Ok, shouldn't be hard to do.  Just to implement qXfer:features:read, IIUC.

>>>> +#if 1
>>>> +      /* What a mess.  Gdb and linux expects bsp to point after the current
>>>> +         register frame.  Adjust.  */
>>> 
>>> What does this mean?  Are we committing to a hack that will make our
>>> lives hard when we want to fix it?
>> 
>> I have updated the comment.  Currently, ia64-tdep.c follows the Linux convention, and we don't want to change that.  So the BSP has to be adjusted.
> 
> Why don't we want to change it?

I think it's too late.  That would be a change in gdbserver and other stubs, so it would break compatibility.  The adjustment in the VMS stubs isn't that complex.

> It'd be good if the basics of using the stub were documented in
> the manual.

Sure, I will work on that.

> In any case, this is okay.

Thank you for reviewing,
Tristan.