RE: ucontext.h

Thanks Tian ,
  For giving me the correct direction ..I am on my way
almost to finish that .

Pramod 

--- "Tian, Kevin" <[email protected]> wrote:

> >-----Original Message-----
> >From: [email protected]
> [mailto:[email protected]] On
> >Behalf Of pramod sharma
> >Sent: Wednesday, October 06, 2004 2:56 PM
> >For the intel x86 , running on Linux,
> >the struct ucontext *ucp ;
> >ucp->uc_mcontext.gregs[ERR]" field can be used to
> find
> >out whether READ or WRITE caused the page fault.
> This
> >field simply means that we get the interrupted
> >instruction from ucontext (saved user context) and
> >check whether it is read or write.
> >
> >but for IA -64 , there is no structure defined like
> >this .......is this not supported for IA64 .
> >
> >
> >How can I acheive this in IA64 ?
> >
> >Any pointers in this direction will be helpful.
> >
> >Regards
> >Pramod
> 
> Hi, Pramod,
> 	Checking siginfo should be enough to retrieve
> necessary info
> about fault (Si_code and si_errno). Like SEGV_ACCERR
> for si_code stands
> for invalid permissions for destination, including
> both read and write
> operations. Furthermore, ISR is kept in siginfo for
> SIGSEGV, etc, which
> describes complete faulting info, like r/w/x. You
> can refer to manuals
> for ISR details. 
> 
> Thanks,
> Kevin
> 
> _______________________________________________
> ia64-list mailing list
> [email protected]
> https://www.redhat.com/mailman/listinfo/ia64-list
> 


__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com