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Re: [RFC] GDB patches for hw watchpoints - revised


On Fri, 9 Dec 2005, Daniel Jacobowitz wrote:

> On Sat, Dec 10, 2005 at 12:46:36PM +0800, Wu Zhou wrote:
> > On Fri, 9 Dec 2005, Daniel Jacobowitz wrote:
> > 
> > > No, let's get it right the first time.  rwatch is extremely valuable,
> > > and it sounds like you're having to play with ABI changes to get it to
> > > work.
> > 
> > OK. I will try to make it right the first time. :-)
> > 
> > And can you elaborate on the statement that I am having to play with ABI 
> > changes to get it to work?  It seems that you must find something 
> > noticeable, right? If so, please point out. Thanks.
> 
> I was just talking about Anton's kernel patch.  If you're still
> changing the kernel to make it work, it's not quite done yet.

Sorry. I am not sure what you means by playing with ABI changes.  I had 
thought that you mean the changes in GDB's side.  But it seems that you 
are meaning the changes in kernel's side. 

And yes, Anton give me a patch to assign the faulting data address to 
siginfo.si_addr. But in my opinion, it is a small patch.  Just that I 
didn't get out the same value in gdb as that assigned to si_addr in 
kernel.  We are now believing that it might be a 32/64bit siginfo issue. 
But I don't have machine available at this time to track that down. 
(Another guy need to work with the shipped kernel.)

Regards
- Wu Zhou


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