2011/3/24 Timo Teräs : > On 03/24/2011 12:27 AM, Mike Frysinger wrote: >> mmm my understanding was that each thread got its own chunk of TLS >> area at thread creation time, and after that the ldso only existed >> when the thread needed to know the address of its TLS. what port are >> you talking about exactly ? > > But if after startup, someone does dlopen(libfoo.so) and libfoo defines > global TLS variables, those variables need to be allocated from the > global TLS tables. I believe that's mostly done in _dl_add_to_slotinfo.
duh, i really should have seen that > So. As immediate bandage aid, we probably need to add rwlock (or just > regular mutex) to dlopen (rw)/dlsym (ro)/dlclose (rw). That should at > least prevent crashes. But yes, more fine grained locking (or even RCU) > would be preferable. i think a patch to that effect with a note in the TODO of making it suck less would be fine -mike _______________________________________________ uClibc mailing list [email protected] http://lists.busybox.net/mailman/listinfo/uclibc
