Hello,
I have been busy writing libraries and programs for L4Re and recently had to
think about the size of the payloads I have been deploying. It appears that in
the build system, one can use MODE=shared to build dynamically-linked
programs, and there is a shared version of the hello example in the examples
package.
However, I don't see any recipe for doing this for other programs. My
impression is that the dynamic linker must have all the required libraries
deployed as modules, and so I wrote a script to generate a list of such
modules using readelf. In addition, it appears that libl4sys-direct.so is
required (which readelf does not detect).
Adding these modules to my conf/modules.list should yield success, but within
my constrained debugging environment, I only see that "shared" programs fail
to start. I really need to see if they start but then experience some
initialisation problem, or whether they actually crash but Mag keeps their
viewports around.
Are there any other things that I need to consider when building and deploying
such programs? I searched for guidance on this topic and only found the
following:
http://os.inf.tu-dresden.de/pipermail/l4-hackers/2014/007094.htmlhttp://os.inf.tu-dresden.de/pipermail/l4-hackers/2016/007830.html
Both of these discussion threads only provide some details and are obviously
not tutorials.
Thanks for any clues you might be able to provide!
Paul
P.S. I guess I could also see if the CI20 produces useful console-level
details, perhaps indicating an architecture-related problem. Usually, however,
the problem is caused by some simple mistake I have made, so I suspect that
there is merely some detail I have forgotten.
