[dtrace-discuss] userfunc.d --- documentation bug or what?

Michael Schuster
2007-04-17T23:33:30Z

use the ''-F'' option or the flowindent pragma - for details,
see ... oh
right, you''ve got it already ;-)

Michael

Charles Martin wrote:
> On pg 355 of the dtrace user guide, there''s a short program to
trace
> functino calls in a user program, to whit:
>
> pid$1::$2:entry
> {
>     self->trace = 1;
> }
>
> pid$1::$2:return
> /self->trace/
> {
>     self->trace = 0;
> }
>
> pid$1:::entry,
> pid$1:::return
> /self->trace/
> {
> }
>
> According to the document on page 356, this should produce nifty
> output like this:
>
> # ./userfunc.d 15032 execute
> dtrace: script ''./userfunc.d'' matched 11594 probes
>  0  -> execute
>  0    -> execute
>  0      -> Dfix
>  0      <- Dfix
>  0      -> s_strsave
>  0        -> malloc
>  0        <- malloc
>  0      <- s_strsave
>  0      -> set
>  0        -> malloc
>  0        <- malloc
>  0      <- set
>  0      -> set1
>  0        -> tglob
>  0        <- tglob
>  0      <- set1
>  0      -> setq
>  0        -> s_strcmp
>  0        <- s_strcmp
>
> ... but what it produces instead is more like:
>
> 0  39640                      tsort:entry
>  0  42589                     tsort:return
>  0  42506           load_completion:return
>  0  39552               is_dep_ready:entry
>  0  42501              is_dep_ready:return
>  0  39551                is_dep_init:entry
>  0  42500               is_dep_init:return
>  0  39587                      leave:entry
>  0  39544                   rd_event:entry
>  0  42493                  rd_event:return
>  0  39586                 fmap_setup:entry
>  0  42535                fmap_setup:return
>  0  39529              rt_bind_clear:entry
>  0  42071             _ti_bind_clear:entry
>  0  45012            _ti_bind_clear:return
>  0  42478             rt_bind_clear:return
>  0  39527            rt_mutex_unlock:entry
>  0  39858          _lwp_mutex_unlock:entry
>  0  42805         _lwp_mutex_unlock:return
>  0  42476           rt_mutex_unlock:return
>  0  39529              rt_bind_clear:entry
>  0  42071             _ti_bind_clear:entry
>  0  45012            _ti_bind_clear:return
>  0  42478             rt_bind_clear:return
>  0  42536                     leave:return
>  0  42622                  elf_bndr:return
>  0  42395                elf_rtbndr:return
>  0  42196                     _close:entry
>  0  45136                    _close:return
>  0  44389                    fclose:return
>  0  41446                     fclose:entry
>  0  41445                  _fflush_u:entry
>  0  44388                 _fflush_u:return
>  0  42196                     _close:entry
>  0  45136                    _close:return
>  0  44389                    fclose:return
> dtrace: pid 5989 has exited
>
> I''m sure I''ve seen the nifty indented output elsewhere,
but sadly I
> can''t find it.
>
> Could someone tell me (a) how to get the indented with -> style? and
> (b) where to send documentation bug reports?
>
> Thanks
>


--
Michael Schuster
Recursion, n.: see ''Recursion''