Semaphores macro error

[Leon Pollak]

On Wednesday 11 April 2007, D. Peter Siddons wrote:
> Isn't this message issued by gdb itself? i.e. by the host, not the
> target? As a result of the 'printf "%s", "No waiting threads"' command?
> Pete.
Yes, it looks so. But I do not understand how it can cause such an error.

>
> Leon Pollak wrote:
> > On Wednesday 11 April 2007, you wrote:
> >> You can try the ugly hack of commenting out lines or printing until you
> >> figure out what
> >> is blowing up.  I have no other idea how to debug these scripts.  That's
> >> how I did it when I wrote them.
> >
> > Joel, I do not see any sense in the results I have. Please, can you help
> > to interpreter them?
> >
> > I added prints as following (mine are with "=X=\n":
> >
> > define rtems_helper_score_threadq
> >   set $tq = $arg0
> >   set $THREAD_QUEUE_DISCIPLINE_FIFO     = 0
> >   set $THREAD_QUEUE_DISCIPLINE_PRIORITY = 1
> >
> >   if $tq->discipline == $THREAD_QUEUE_DISCIPLINE_FIFO
> >     printf "  FIFO - "
> >     set $limit = 1
> >   end
> >
> >   if $tq->discipline == $THREAD_QUEUE_DISCIPLINE_PRIORITY
> >     printf "  PRIO - "
> >     set $limit = 3
> >   end
> >
> >   # now walk them
> >   set $count = 0
> >   set $pri_index = 0
> >   set $queues = &$tq->Queues
> > printf "=2=\n"
> >   while $pri_index < $limit
> >     set $chain = &$queues.Priority[$pri_index]
> >     set $ptail = &$chain->permanent_null
> > printf "=3=\n"
> >     set $next = $chain->first
> >     while $next != $ptail
> > printf "=4=\n"
> >       set $t = (Thread_Control_struct *)$next
> >       printf "0x%08x@%d ", $t->Object.id, $t->current_priority
> >       set $next = $next->next
> >       set $count = $count + 1
> >     end
> > printf "=5=\n"
> >     set $pri_index = $pri_index + 1
> >   end
> > printf "=6=\n"
> >   if $count == 0
> > printf "=7=\n"
> >     printf "%s", "No waiting threads"
> >   end
> > printf "=8=\n"
> > end
> > # Internal Helper Do Not Document
> >
> > ========================================================================
> >
> >
> > And the result was:
> > =====================================================================
> >  # | Name |    ID    | Information
> > ---+------+----------+-----------------------------------------------
> >  1 | LBIO | 1a010001 |   Mutex ###
> > INHT UNL=1=
> >   PRIO - =2=
> > =3=
> > =5=
> > =3=
> > =5=
> > =3=
> > =5=
> > =6=
> > =7=
> > No memory available to program: call to malloc failed
> >
> >
> > I do not understand this.



-- 
Dr.Leon M.Pollak
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