Re: [hjl@lucon.org: Re: your patch to remove unused sections]

["H. J. Lu" <hjl@lucon.org>]

On Tue, Apr 12, 2005 at 12:13:56AM +0930, Alan Modra wrote:
> On Mon, Apr 11, 2005 at 07:09:30AM -0700, H. J. Lu wrote:
> > Hi Alan,
> > 
> > Have you looked at this patch?
> 
> Yes, I was going to ask for a revision, but wanted to check whether my
> idea was feasible before asking you to make a change, which would remove
> the following loop:
> 
> > +	  /* .bss and similar sections won't have the linker_mark
> > +	     field set.  We have to check if its output section is
> > +	     included in output_bfd.  */
> > +	  for (sec = output_bfd->sections; sec != NULL; sec = sec->next)
> > +	    if (sec == sym->section->output_section)
> > +	      break;
> 
> I haven't had time to check, but here's the idea anyway:  After removing
> an unused output section s with bfd_section_list_remove (output_bfd, s),
> clear s->next.  Then
> 
>   if (sym->section->output_section->next == NULL
>       && *output_bfd->section_tail != sym->section->output_section)
>     {
>       /* The section has been removed.  */
>     }
> 

I will give it a try.


H.J.