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

[H. J. Lu]

On Wed, Jun 20, 2007 at 09:19:39AM -0400, Talbot, George wrote:
> Hi all,
> 
> I've recently upgraded my machine here to an x86_64 box running Fedora
> Core 6 (7 came out a week after I installed doh!).  I have a largish C++
> program that I compile in both a release (-O3 -DNDEBUG) and debug (-O0
> -ggdb3) versions that uses a lot of templates and stuff.  Linking the
> release one is pretty quick...on the order of 10-20 seconds or so.
> However linking the debug version takes many minutes, and the CPU is
> pegged during the link.
> 

It may be related to

http://sourceware.org/ml/binutils/2007-06/msg00064.html

Please open a bug repprt at

http://www.sourceware.org/bugzilla/

with a testcase to reproduce it. If the testcase is too big, you
can make it available via ftp/http.

Thanks.

H.J.