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Re: Very slow link times on debug versions of C++ program on x86_64. Includes oprofile of ld...


On Wed, Jun 20, 2007 at 09:58:42AM -0400, Talbot, George wrote:
> Thanks for your quick reply.
> 
> I'll see if I can come up with a testcase.
> 
> Based upon my examination of oprofile results, I can say that ld is
> _not_ spending all of its time in I/O, like the previous message
> suggests.  Looking at the oprofile results, it's spending it's time
> matching wildcards, though of what I'm not exactly sure.
> 
> What exactly does the "wild_section"/"match_simple_wild" stuff do in
> there?  I'm not sure that I fully understand it.  It appears to be
> matching section names, yes?  That seems kinda weird--does a GCC debug
> compile have a lot more sections in the .o file?

Have you tried building a HEAD checkout or snapshot?  If not, I highly
recommend it.  I think this has been fixed already.

-- 
Daniel Jacobowitz
CodeSourcery


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