gdp / README-developers.md @ master
% Developing The Global Dataplane
This file describes things that someone working on developing the GDP should know. It is (extremely) incomplete.
See the files
before you read this file.
If you are working with the Berkeley GDP group, it is essential that you get a login on https://gdp.cs.berkeley.edu so you have access to the news, forums, and wiki. We welcome account requests from bona fide researchers. If you are a spammer, well, find someplace else to spread your poison.
Setting Debug Flags
You can turn on debugging output using a command line flag,
=level". The pattern specifies
which flags should be set and level specifies how much
should be printed; zero indicates no output, and more output
is added as the values increase.
By convention level is no greater than 127, and values 100 and above may modify the base behavior of the program (i.e., do more than just printing information).
Each debug flag has a hierarchical name with (by convention)
"." as the separator, for example, "
gdp.proto" to indicate
the protocol processing of the GDP. The "what(1)" program on
a binary will show you which debug flags are available
including a short description. (The
what program isn't available
on Linux; it can be simulated using
strings | grep '@(#)').
To enable debugging for all patterns, use "
just "level", for example "
*=18" or "