dtrace discuss - Sep 2008 - USDT probes in both static library and application

Hi All,
I''ve got a problem when I have USDT probes in a static library and in 
the application code outside of the library.

I build the static library containing some USDT probes, glomming 
everything together (ld -r) before creating the .a file to preserve the 
probe symbols. This all works fine.
I build an application which also has some USDT probes.

When I build the application which links to the static library, the USDT 
probes from the static library no longer show up with dtrace -l, but the 
application''s USDT probes are there.
If I build the same application without running dtrace -G on the 
application''s object files, the USDT probes from the static library are
available.

Is there a way that I can have USDT probes from both the static library 
and the application at the same time?

Regards,
Chris Dumoulin

Hey Chris,

I''m not aware of any work around, but this is a known issue and
something
that we''d like to address. Sorry I can''t be more helpful.

Adam

On Tue, Sep 16, 2008 at 03:04:42PM -0400, Christopher Dumoulin
wrote:
> Hi All,
> I''ve got a problem when I have USDT probes in a static library and
in
> the application code outside of the library.
> 
> I build the static library containing some USDT probes, glomming 
> everything together (ld -r) before creating the .a file to preserve the 
> probe symbols. This all works fine.
> I build an application which also has some USDT probes.
> 
> When I build the application which links to the static library, the USDT 
> probes from the static library no longer show up with dtrace -l, but the 
> application''s USDT probes are there.
> If I build the same application without running dtrace -G on the 
> application''s object files, the USDT probes from the static
library are
> available.
> 
> Is there a way that I can have USDT probes from both the static library 
> and the application at the same time?
> 
> Regards,
> Chris Dumoulin
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss at opensolaris.org
-- 
Adam Leventhal, Fishworks                     http://blogs.sun.com/ahl

Adam,

I''d follow up to see if there is any progress on this issue:
a static library and an application cannot currently provide USDT probes
simultaneously?

thanks,
jenny

   Luojia(Jenny) Chen              
   Software Engineer                 
   ISV Engineering      
   v-mail:(510) 550-2394                                  
   SUN Microsystems

----- Original Message -----
From: Adam Leventhal <ahl at eng.sun.com>
Date: Wednesday, September 17, 2008 7:17 pm
Subject: Re: [dtrace-discuss] USDT probes in both static library	and	application
To: Christopher Dumoulin <dumoulin at oanda.com>
Cc: dtrace-discuss at opensolaris.org

> Hey Chris,
> 
> I''m not aware of any work around, but this is a known issue and
something
> that we''d like to address. Sorry I can''t be more helpful.
> 
> Adam
> 
> On Tue, Sep 16, 2008 at 03:04:42PM -0400, Christopher Dumoulin wrote:
> > Hi All,
> > I''ve got a problem when I have USDT probes in a static
library and
> in 
> > the application code outside of the library.
> > 
> > I build the static library containing some USDT probes, glomming 
> > everything together (ld -r) before creating the .a file to preserve 
> the 
> > probe symbols. This all works fine.
> > I build an application which also has some USDT probes.
> > 
> > When I build the application which links to the static library, the 
> USDT 
> > probes from the static library no longer show up with dtrace -l, but 
> the 
> > application''s USDT probes are there.
> > If I build the same application without running dtrace -G on the 
> > application''s object files, the USDT probes from the static
library
> are 
> > available.
> > 
> > Is there a way that I can have USDT probes from both the static 
> library 
> > and the application at the same time?
> > 
> > Regards,
> > Chris Dumoulin
> > _______________________________________________
> > dtrace-discuss mailing list
> > dtrace-discuss at opensolaris.org
> 
> -- 
> Adam Leventhal, Fishworks                     http://blogs.sun.com/ahl
> _______________________________________________
> dtrace-discuss mailing list
> dtrace-discuss at opensolaris.org

> I''d follow up to see if there is any progress on this issue:
> a static library and an application cannot currently provide USDT  
> probes simultaneously?
There is no progress on this issue. I suggest you find the relevant  
bug and add a call record.

Adam

--
Adam Leventhal, Fishworks                        http://blogs.sun.com/ahl