On Tue, Oct 2, 2012 at 8:56 PM, John Pye <713...@bugs.launchpad.net> wrote: > I had a look at the 0.8.3 version that's currently in Ubuntu 12.04, but > it didn't work for me with my program that uses shared libraries. > > But the latest 0.8.4 version *does* work fine. Let's upgrade! >
It's not that simple. The problem with libbfd is due to a bug in the Ubuntu packaging of binutils. The binutils package provides a libbfd shared library whose DSO name contains the binutils version number; this is bizarre and in my experience unique to this one library in this one package on this one distribution. For example gnb@enki 582> ls -l /usr/lib/libX11*.so* lrwxrwxrwx 1 root root 15 2009-07-12 03:53 /usr/lib/libX11.so -> libX11.so.6.2.0 lrwxrwxrwx 1 root root 15 2009-06-18 18:45 /usr/lib/libX11.so.6 -> libX11.so.6.2.0 -rw-r--r-- 1 root root 971436 2009-02-03 03:41 /usr/lib/libX11.so.6.2.0 gnb@enki 583> ls -l /usr/lib/libbfd*.so* -rw-r--r-- 1 root root 948232 2009-02-11 03:13 /usr/lib/libbfd-2.19.1.so lrwxrwxrwx 1 root root 16 2010-01-21 16:18 /usr/lib/libbfd.so -> libbfd-2.19.1.so The upshot is that everything works fine just after the ggcov package has been built, but after the next time binutils is upgraded the ggcov executable can no longer start. Upgrading to ggcov 0.8.4 will appear to fix the problem, but only because the package has been freshly compiled against the current binutils. Actually the problem will re-appear when binutils is upgraded again. The true solution is to link against libbfd in a way which survives binutils being upgraded. To achieve that I would recommend upgrading to the ggcov 0.8.4 release plus these two commits: http://ggcov.git.sourceforge.net/git/gitweb.cgi?p=ggcov/ggcov;a=commitdiff;h=aa80fb7f94d40225e18932674d911b126bea1234 http://ggcov.git.sourceforge.net/git/gitweb.cgi?p=ggcov/ggcov;a=commitdiff;h=d44654466b8b2967e9f659d01545cde757d53dd4 and John will want this commit too http://ggcov.git.sourceforge.net/git/gitweb.cgi?p=ggcov/ggcov;a=commitdiff;h=a3d89646b37deae1d30e74ff38a285e762fce831 and you will want a deb packaging equivalent of http://ggcov.git.sourceforge.net/git/gitweb.cgi?p=ggcov/ggcov;a=commitdiff;h=1b10d86e1d5e7646383b7a17adb99b7198e53942 -- Greg. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/713811 Title: ggcov can't open exisiting shared libs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ggcov/+bug/713811/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
