dlclose and TLS

[Ulrich Drepper]

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I've checked in some code to fix dlclose of modules with static TLS for
TLS_TCB_AT_TP platforms.  The existing code was completely broken but I
thnk it should more or less work for TLS_DTV_AT_TP platforms.  I left it
completely alone for now.  Hopefully somebody will look at it a bit
closer.  The new tests should test the code somewhat.  Just holes aren't
tested.

- -- 
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Ulrich Drepper \    ,-----------------'   \ Mountain View, CA 94041 USA
Red Hat         `--' drepper at redhat.com `---------------------------
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