_ELFUTILS_PREREQ dependency

Roland McGrath roland at redhat.com
Mon Aug 10 21:23:22 UTC 2009


> On 08/09/2009 03:42 PM, Roland McGrath wrote:
> > I've done it in commit ebfb648.  Please verify that when linking against
> > the new libdw.so your references now get bound to ELFUTILS_0.143 definitions
> > for the functions changed in commit de69d52.
> 
> Looks good -- I now see:
> 
> $ nm ./stap | grep dwarf_decl_
>                  U dwarf_decl_file@@ELFUTILS_0.143
>                  U dwarf_decl_line@@ELFUTILS_0.143

Cool.  What I've done for these is just two symbol versions for the same
entry points.  Old binaries that call the old symbol version will get the
new dwarf_attr_integrate behavior too.  But new binaries can rely on it
when compiled against >= 0.143, and their dependencies will make sure they
require libraries with the new behavior.


Thanks,
Roland


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