On Mon, Aug 03, 2020 at 03:11:09PM +0200, Mark Wielaard wrote:
> On Thu, Jul 30, 2020 at 04:21:17PM +0100, Nick Clifton via Binutils wrote:
> > Plus, and this is very minor, version 4 DWARF line number tables are 
> > actually bigger than version 3 tables, because of the addition of the
> > Maximum Ops Per Instruction field in the table header.
> 
> This is most likely compensated by the fact that for DWARF4 we loose a
> relocation in the CU DIE header for DW_AT_high_pc. We could save a few
> bytes if we would be able to express the difference between low_pc and
> high_pc as uleb128 (maybe we can simply use emit_leb128_expr?).

This seems to work as intended and is indeed a lot shorter (before
this patch we always used either data4 (32bits) or data8 (64bits).

Cheers,

Mark