Performance problem of dlopen

[Jakub Jelinek]

On Thu, Oct 24, 2002 at 06:48:15AM -0700, H. J. Lu wrote:
> On Thu, Oct 24, 2002 at 02:36:18PM +0200, Jakub Jelinek wrote:
> > There is one thing which ld.so can do better (it is even implemented
> > in ld.so, but disabled for now because e.g. librt.so depends
> > on the old behaviour) - ATM if symbol lookup encounters a weak symbol,
> 
> I kept hearing librt.so dpend on it. Do we have a testcase in glibc
> for this?

Actually, with current librt.so containing:
GROUP ( /lib/libpthread.so.0  /lib/librt.so.1 )
it shouldn't be a problem for newly compiled programs. Programs with just
DT_NEEDED librt.so.1
DT_NEEDED libc.so.6
are screwed up, because for symbol lookups the order will be librt.so.1,
libc.so.6, libpthread.so.0.

	Jakub