Folks,
I am looking into some legacy code that is called from a third-party
library.  The function being called has this signature:

AStringClass PlatformSpecificImplClass::formatMessage(unsigned int code,
va_list* argList)

The problem is that on x86 platforms, |argList| seems to point to a valid
4-byte unicode string "(null)", but on PPC, this string appears to be
garbled.  I say "appears to be" because I can't actually tell, since in
Xcode I have no visibility into |argList|.  Is there a way I can examine the
contents of this pointer?  I know the expected format of the memory, but I
don't know how to access it in gdb (or Xcode).  I am using Xcode 2.5, all
this code is built on a 10.5 box using g++.

Thanks!
- Dave.S
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