Re: Patch to the way BFD reads overlaid ELF sections

[Alan Modra <amodra at bigpond dot net dot au>]

On Fri, May 03, 2002 at 03:58:14PM +0100, Richard Sandiford wrote:
> OK, I can see it makes sense when a section belongs to a segment with
> non-zero file size.  I'm just not sure what it means when the segment
> file size is zero.

Neither am I.  :)

> After the patch we'd only consider segments 2 and 3 to match
> offset-wise.  We still need the VMA check to distinguish
> between them.

I still don't like removing the p_memsz test, even though I can't
immediately think of a case where removing it would cause a
problem.

One way of solving the problem you found with zero file size overlay
sections, would be to keep track of section assignments to segments
via another elf_tdata structure, and not reassign to the same place.
Whether it's worth doing is debatable..

-- 
Alan Modra
IBM OzLabs - Linux Technology Centre