RE: ucontext.h

>-----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.=20

Thanks,
Kevin