[OpenIndiana-discuss] Missing dtrace probe syscall::exec:

[Ewald Ertl]

Hello Alan,

Also thanks from my side for the effort clarifying my question, and also
many thanks for all the
work you're doing.

Cheers from Austria
Ewald

On Fri, Sep 24, 2010 at 4:43 PM, Chris Ridd <chrisridd at mac.com> wrote:

>
> On 24 Sep 2010, at 15:17, Alan Coopersmith wrote:
>
> > Chris Ridd wrote:
> >> On 24 Sep 2010, at 08:23, Ewald Ertl wrote:
> >>
> >>> Hello,
> >>>
> >>> I attempted to use the execsnoop script from the DTraceToolkit but the
> exec
> >>> probe is missing.
> >>>
> >>> probe description syscall::exec:return does not match any probes
> >>>
> >>>
> >>> [ewer at solewer:~]$dtrace -l -P syscall | grep exec
> >>> 21829    syscall                                               exece
> entry
> >>> 21830    syscall                                               exece
> return
> >>>
> >>>
> >>> There is "only" the exece available.
> >>> Why is the exec dtrace probe missing_
> >>
> >> Hm you're right - this happens on 32-bit and 64-bit kernels.
> >>
> >> Could it be a deliberate change in onnv?
> >
> > Appears to be:
> >
> http://src.opensolaris.org/source/diff/onnv/onnv-gate/usr/src/uts/common/os/exec.c?r2=%252Fonnv%252Fonnv-gate%252Fusr%252Fsrc%252Futs%252Fcommon%252Fos%252Fexec.c%4011798%3A1e7f1f154004&r1=%252Fonnv%252Fonnv-gate%252Fusr%252Fsrc%252Futs%252Fcommon%252Fos%252Fexec.c%4011736%3A63a134e1f09c
> >
> > Which is part of the putback a few months ago for:
> >
> > PSARC 2009/657 delete obsolete system call traps
> > http://arc.opensolaris.org/caselog/PSARC/2009/657/
> >
> > 6906485 delete obsolete system call traps
> > http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6906485
>
> It sure looks like it, thanks for digging this out.
>
> There seems to be no updated version of the DTrace Toolkit right now
> (perhaps the author's been busy on <
> http://blogs.sun.com/brendan/entry/dtrace_book_coming_soon>), but that's
> probably what needs fixing.
>
> Cheers,
>
> Chris
>
>
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