Re: [RFA] dwarf2_physname

[Michael Eager <eager@eagercon.com>]

Keith Seitz wrote:
> 
> To start, I would like to submit a patch which is the beginnings of 
> removing GDB's use of the DWARF2 quasi-attribute 
> DW_AT_MIPS_linkage_name. Instead of using this attribute, GDB will start 
> generating physical names itself.

Does this mean that (eventually) the DW_AT_MIPS_linkage_name attribute
will not be needed by GDB?

Coincidentally, the Dwarf Committee just approved adding DW_AT_linkage_name
to DWARF Version 4.  The semantics are substantially the same as 
DW_AT_MIPS_linkage_name.
(http://www.dwarfstd.org/ShowIssue.php?issue=090715.1&type=closed3)
The semantics are substantially the same as DW_AT_MIPS_linkage_name.

There was a significant amount of discussion about whether this was
really needed.  There were a couple examples where it might provide
information which was not otherwise available or where it compensated
for linkers which didn't support weak externs.

-- 
Michael Eager	 eager@eagercon.com
1960 Park Blvd., Palo Alto, CA 94306  650-325-8077