gc sections and .eh_frame

[Jonathan Larmour]

Alan Modra wrote:
> On Fri, Jun 10, 2005 at 01:54:36PM +0200, Eric Botcazou wrote:
> 
>>>Great, thanks. I guess looping over the input BFDs would be better.
>>
>>Right, I think it's the best approach.  Not very pretty but it works for me.
>>
>>
>>	* elflink.c (bfd_elf_gc_sections): Mark again the sections rooted
>>	at .eh_frame if the EH tables are not in .gcc_except_table.* sections.
> 
> 
> Won't that mark all the function text sections too?

Only if there aren't any .gcc_except_table* sections surely? In which case 
that's no worse than previous behaviour.

Anyway, unfortunately the patch doesn't quite work. There are multiple 
input .eh_frame sections, and only the most recently seen one will get its 
dependencies marked.

While it would be good to reuse the loop, I think we're going to have to 
do a separate loop to search for .gcc_except_table*. I'll rework the patch.

Jifl
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