Re: [PATCH] Accept DWARF 3-format debug info

[Jim Blandy <jimb@codesourcery.com>]

Julian Brown <julian@codesourcery.com> writes:
> This is part of a series of patches from a CodeSourcery branch which
> enable the output of ARM's RVCT 2.2 compiler to be debugged with gdb.
>
> ARMCC's support for DWARF 3 is superior to its DWARF 2 support, and
> GDB apparently supports much of DWARF 3 already. This patch allows
> DWARF 3 format debug info to be accepted by gdb.
>
> (Some things are notably missing from the DWARF 3 support -- one thing
> I've noticed so far is lack of support for DW_TAG_partial_unit, but
> RVDS 2.2 doesn't seem to need that. A couple of other minor things
> will be addressed in followup patches.)

I think this patch is right.  It's true that GDB doesn't support all
of DWARF 3, but GDB's general philosophy is to garner as much
information as it can, and punt the rest, which works well with
DWARF's philosophy.  So GDB shouldn't just punt entire compilation
units because they're marked as DWARF 3.

First, please add yourself to the Write After Approval list in
gdb/MAINTAINERS, with an appropriate ChangeLog entry.

Then, go ahead and put in the patch as a separate commit.

Thanks!