On Sat, Jun 14, 2014 at 03:12:36PM -0700, Steve Kargl wrote:
> On Sat, Jun 14, 2014 at 03:01:20PM -0700, Peter Wemm wrote:
> > On Saturday 14 June 2014 14:44:39 Steve Kargl wrote:
> > > On Sat, Jun 14, 2014 at 01:19:33PM -0700, Steve Kargl wrote:
> > > > Long story short.  I have laptop that is normally limited in
> > > > available diskspace, so I do not install profiled libraries.
> > > > I however have the need for running some code under the profiler
> > > > (assuming clang can generate proper profiling).  I do the
> > > > following,
> > > 
> > > Is it possible to using profiling on FreeBSD-current?  After installing
> > > libc_p.a, I try to build math/lapack.  It dies with
> > > 
> > > /usr/local/bin/ld: //usr/lib/libc_p.a(sbrk.po): undefined reference to
> > > symbol '_end' //lib/libc.so.7: error adding symbols: DSO missing from
> > > command line collect2: error: ld returned 1 exit status
> > > *** Error code 1
> > 
> > collect2? I think you've got something odd going on there..
> > 
> 
> Maybe.  math/lapack is built with gfortran, which is from
> lang/gcc47 on my system.  lang/gcc47 is probably picking 
> up the installed devel/binutils.  This would explain the
> /usr/local/bin/ld instead of our /usr/bin/ld.   libc_p.a is
> built with clang, so I'm probably running into yet-another
> clang vs gcc problem.
> 

Where is the symbol _end suppose to come from?

Script started on Sat Jun 14 15:26:08 2014
laptop-kargl:kargl[201] foreach i (/usr/lib/*.a)
foreach? echo $i
foreach? nm $i | grep 'U _end'
foreach? nm $i | grep 'T _end'
foreach? end
/usr/lib/libc.a
         U _end
         U _endnetdnsent
         U _endnethtent
         U _endhostdnsent
         U _endhosthtent
00000050 T _endnethtent
00000ac0 T _endnetdnsent
00000050 T _endhosthtent
00001220 T _endhostdnsent
/usr/lib/libc_p.a
         U _end
         U _endnetdnsent
         U _endnethtent
         U _endhostdnsent
         U _endhosthtent
00000050 T _endnethtent
00000b00 T _endnetdnsent
00000050 T _endhosthtent
000012e0 T _endhostdnsent
/usr/lib/libc_pic.a
         U _endhostdnsent
         U _endhosthtent
         U _endnetdnsent
         U _endnethtent
         U _end
00001470 T _endhostdnsent
00000060 T _endhosthtent
00000ba0 T _endnetdnsent
00000060 T _endnethtent
Script done on Sat Jun 14 15:27:01 2014

-- 
Steve
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