dtrace showed matched probes but nothing in output on FreeBSD 9.1-RELEASE

[George Neville-Neil]

On Nov 1, 2013, at 23:56 , John Luk <john.37 at gmail.com> wrote:

> Hi all,
> I'm a newbie in dtrace, and I following this tutorial from Oracle:
> http://docs.oracle.com/cd/E19205-01/820-4221/ to learn dtrace. In the
> example of test.c and ufunc.d, I expected output like this:
> 
> % dtrace -s ufunc.d -c ./a.out a.out
> 
>    dtrace: script 'ufunc.d' matched 5 probes
>    dtrace: pid 27210 has exited
> 
>    inet_makeaddr            1
>    foo1                     1
>    foo                      1
>    main                     1
>    __fsr                    1
> 
> 
> But I got this instead:
> 
> # dtrace -s ufunc.d  -c ./a.out a.out
> dtrace: script 'ufunc.d' matched 5 probes
> dtrace: pid 86498 has exited
> 
> #
> 
> My system info:
> root at home:/home/spin6lock/test # dtrace -V
> dtrace: Sun D 1.7
> root at home:/home/spin6lock/test # uname -a
> FreeBSD 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Mon Oct 28 20:52:03 CST
> 2013     root at xiangling:/usr/obj/usr/src/sys/DTRACE  amd64
> 
> Any clues? Thanks in advanced.
> 

How did you compile the progam to a.out?

Best,
George


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