Re: Debug logging with ell

[Stotland, Inga <inga.stotland@intel.com>]

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Hi Ossama, Denis,
   A. 
On Tue, 2018-04-24 at 14:35 -0700, Othman, Ossama wrote:
> Hi Denis,
> 
> On Tue, Apr 24, 2018 at 1:30 PM, Denis Kenzior <denkenz@gmail.com>
> wrote:>
> > > Quick question: can I use l_debug() when I am dynamically linking
> > > with
> > > installed ell library (i.e., the one created with make install
> > > and
> > > linked as -lell)?
> > > Calling l_debug() generates no output, l_info() works just fine.
> > > 
> > 
> > I suspect you're the first to try this, so doesn't surprise me that
> > it
> > doesn't work.  I imagine the current setup fails because the shared
> > library
> > has its own section and the executable has its own.
> > 
> > Probably can be solved with some macro magic, but will require a
> > bit of
> > surgery inside ell...
> 
> This used to work for me, but prior to today the last time I tried
> enabling debug logging code was probably a couple of months ago.
> 

Most likely to do with memory sections. One additional piece of info in
case it's helpful:
The section denoted by __start___debug[] and __stop___debug[] appears
to be shorter by size of one struct l_debug_desc when linking with
-lell (compared when compiled with internal lib). 

Inga

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