Mode conditional CDL

[Gary Thomas]

I've found another thing I'd like to do with CDL that is cumbersome.
We have the RedBoot "model" string HAL_PLATFORM_BOARD.  When there
is a package which supports more than one board type, I'd like to
have this reflect the model chosen.  Sadly, I've not figured out
how to do this in the define_proc at the top of the package.  I
ended up adding something like this:

Index: hal/powerpc/rattler/current/cdl/hal_powerpc_rattler.cdl
===================================================================
RCS file: /misc/cvsfiles/ecos/packages/hal/powerpc/rattler/current/cdl/hal_powerpc_rattler.cdl,v
retrieving revision 1.2
diff -u -5 -p -r1.2 hal_powerpc_rattler.cdl
--- hal/powerpc/rattler/current/cdl/hal_powerpc_rattler.cdl     28 Aug 2003 15:55:54 -0000      1.2
+++ hal/powerpc/rattler/current/cdl/hal_powerpc_rattler.cdl     22 Oct 2003 21:00:22 -0000
@@ -138,10 +138,14 @@ cdl_package CYGPKG_HAL_POWERPC_RATTLER {
         flavor           bool
         default_value    0
         description      "
           The Rattler comes in two variants - one with PCI
            and another without."
+        define_proc {
+            puts $::cdl_header "#undef  HAL_PLATFORM_BOARD"
+            puts $::cdl_header "#define HAL_PLATFORM_BOARD  \"Rattler-PCI\""
+        }
     }
 
     # Real-time clock/counter specifics
     cdl_component CYGNUM_HAL_RTC_CONSTANTS {
         display       "Real-time clock constants."

I also couldn't put C style #ifdefs to handle this because the CDL
option which it depends on is not defined (has not yet been emitted
in the platform.h file) until later on.

If there's a better way to handle this, I'd be happy to hear about
it.  I'd also like to figure a way to do things like define a string
which is the board clock speed, etc.  Ideas?

Thanks

-- 
Gary Thomas <gary@mlbassoc.com>
MLB Associates