Eric Blake wrote:
> On Solaris 8, uc_stack is (IMHO properly) pointing to the primary stack,
> even though the handler is executing on the alternate stack.
That's accidental, IMO.
The only documented use of uc_stack in POSIX:2001 is in the description of
'makecontext', as an input parameter. Its
Eric Blake byu.net> writes:
> >
> > On the other hand, POSIX states for sigaction() that the handler's "third
> > argument can be cast to a pointer to an object of type ucontext_t to refer
to
> > the receiving thread’s context that was interrupted when the signal was
> > delivered."
> |
> |>
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According to Eric Blake on 6/6/2008 6:25 AM:
| According to Bruno Haible on 6/6/2008 5:29 AM:
| | The type of the third argument, according to POSIX, is 'void *ucp'.
| Why does
| | it have to be cast? Why is it not directly 'ucontext_t *ucp' (since,
|
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According to Bruno Haible on 6/6/2008 5:29 AM:
| The type of the third argument, according to POSIX, is 'void *ucp'. Why does
| it have to be cast? Why is it not directly 'ucontext_t *ucp' (since, as you
| say, ucontext_t will be defined in )?
I thin
Eric Blake wrote:
> On the other hand, POSIX states for sigaction() that the handler's "third
> argument can be cast to a pointer to an object of type ucontext_t to refer to
> the receiving thread’s context that was interrupted when the signal was
> delivered."
The type of the third argument, ac
Bruno Haible clisp.org> writes:
>
> Eric Blake wrote:
> > user_context->uc_stack.ss_sp contains the location
> > of the currently running (alternate) stack, not the stack where the fault
> > occurred. ... find out where the _original_ stack ended
I'm not sure if it is a bug or intentional t
Eric Blake wrote:
> user_context->uc_stack.ss_sp contains the location
> of the currently running (alternate) stack, not the stack where the fault
> occurred. ... find out where the _original_ stack ended
> ...
> I haven't looked at how libsigsegv handles this situation
libsigsegv has a soluti
