Re: Conditional CDL

[amit dot goel at st dot com]

______________________________ Reply Separator _________________________________
Subject: Conditional CDL
Author:  gary (gary at mlbassoc dot com) at internet
Date:    3/24/2003 5:56 PM


I want to add a new platform which is just a tiny bit different 
from an existing one.  The problem I'm facing is that (this is 
in the PowerPC HAL) we use CDL interfaces to indicate some 
properties about platforms to the various variant and architectural 
layers.  In this case, the two platforms expose different interfaces, 
but that's really the only difference.
     
Concrete info:
  platform A:
    implements property_X
    implements property_Y
     
  platform B:
    implements property_Z
    implements property_Y
     
The only way I know to do this would be to have a phony cdl_component 
which has mututally exclusive cdl_options nested within.  I don't
see any way to make the "implements" statement conditional (at the 
statement level, only at the component/option level).
     
Similarly, there are the set of "define proc" statements which 
pass information to RedBoot (like the platform name).  I'd like 
these to be conditional as well.
     
Any good ideas on how I can do this (cleanly)?
     
-- 
------------------------------------------------------------ 
Gary Thomas                 |
MLB Associates              |  Consulting for the 
+1 (970) 229-1963           |    Embedded world 
http://www.mlbassoc.com/    |
email: <gary at mlbassoc dot com>  |
gpg: http://www.chez-thomas.org/gary/gpg_key.asc 
------------------------------------------------------------