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Re: Long link times and elf_bfd_discard_stabs


On Mon, Oct 27, 2003 at 06:41:26PM -0500, Jamie Guinan wrote:
> 
> Hi,
> 
> I'm working on a project using mostly C++ which taking a very long
> time to link, using mips-elf-ld from binutils-2.13.
> 
> My host platform is Linux 2.4.22, so I was able to use oprofile,
> and easily find what's taking so much time:
> 
> vma      samples  %           symbol name
> 08087384 21440225 81.8378     _bfd_elf32_reloc_symbol_deleted_p
> 080503ec 3260410  12.4451     print_one_symbol
> 080642d8 412356    1.5740     bfd_hash_traverse
> 0804e914 190403    0.7268     lang_output_section_find
> 
> The "deleting discardable stabs" patch was added almost 2 years ago,
> 
>   http://sources.redhat.com/ml/binutils/2001-11/msg00305.html
> 
> My questions:
> 
> It looks like it is just trying to mop up unused debugging symbols, is
> that right?  
> 
> Are they harmless if I leave them in there?  

It may upset GDB.  Or it may not, I'm not really sure.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer


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