On Saturday, July 24, 2010 12:12:03 am Tom Tromey wrote:
> >>>>> "Tom" == Tom Tromey <tromey@redhat.com> writes:
> Tom> Here is what I am testing.
> 
> Here is the variant I am checking it.  It seems to work with all
> combinations of .debug_types, .gdb_index, and -readnow.
> 
> Let me know if you hit any more problems.

Hi Tom,

It seems old GCCs do not recognize that the types_list_elements and types_list 
variables of dwarf2read.c:dwarf2_initialize_objfile are accessed under the 
same condition as they are initialized. GCC 4.1.2 (RHEL5) issues the following 
warning:
<snip>
src/gdb/dwarf2read.c: In function ‘dwarf2_initialize_objfile’:
src/gdb/dwarf2read.c:1839: warning: ‘types_list_elements’ may be used 
uninitialized in this function
src/gdb/dwarf2read.c:1838: warning: ‘types_list’ may be used uninitialized in 
this function
</snip>

The attached patch initializes the two variables to prevent the warnings.
OK to apply?

Regards
-ken