Re: PATCH to dwarf2read.c:decode_locdesc

[Daniel Jacobowitz <drow@mvista.com>]

On Thu, Jan 10, 2002 at 12:26:33PM +0000, Jason Merrill wrote:
> I noticed that even with Daniel's recent C++ improvements (thanks!), vbase
> handling was still broken with dwarf2 because dwarf2read.c still didn't
> grok the complex location expression gcc now emits.  As it happens, by a
> fluke simply adding support for the missing opcodes causes decode_locdesc
> to produce the answer gdb wants.  The dwarf2 output expects the stack to
> start with the address of the object and produce the address of the base,
> whereas in the current gdb the stack starts with 0 and produces the
> negation of whatever constant is provided, which matches the stabs output.
> 
> Of course, gdb tries to complain about the derefs twice in the process, but
> is currently muffled.
> 
> So, it's not a complete solution, but it's entirely correct and fixes
> gdb.c++/inherit.exp.
> 
> OK to commit?

[I can't approve but] thanks!  This has been stewing on my TODO list
while I fixed other things in the type code.

-- 
Daniel Jacobowitz                           Carnegie Mellon University
MontaVista Software                         Debian GNU/Linux Developer