Re: hppa and sigaction

[Carlos O'Donell <carlos@baldric.uwo.ca>]

On Sat, May 14, 2005 at 11:48:46PM +0200, Wesley W. Terpstra wrote:
> On Sat, May 14, 2005 at 02:46:23PM -0400, Carlos O'Donell wrote:
> > The void* is ucontext_t.
> > To get at sc_ioaq you must look in ucontext_t->uc_mcontext->sc_iaoq.
> 
> This is what I've been doing, but it's always zero...
> 
> static void catcher (int sig, siginfo_t* sip, void* mystery) {
>         ucontext_t* ucp = (ucontext_t*)mystery;
>         printf("ping: %x\n", ucp->uc_mcontext.sc_iaoq[0]);
> }
> 
> Repeatedly prints "ping: 0" with each profiler tick.
> 
> > If you are using an older 64-bit kernel all this information may be
> > wrong, and require a kernel update.
> 
> Linux paer 2.4.26-64-smp #1 SMP Tue Aug 24 21:59:09 CEST 2004 parisc64 unknown
> 
> Is this "too old"?

Yes.
You need > 2.6.2 for this bug to be fixed on 64-bit kernels.
Do you need to run a 64-bit smp kernel?

c.