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Greetings, This patch is an update to previous patch by Anoop: https://sourceware.org/ml/libc-alpha/2008-09/msg00013.html See discussion in the above message. Changes from the previous patch: I extended the lifetime of the lock from __new_exitfn to its callers, since they *also* modify global state. Tested: "make check" on Linux/x86_64. Also ran the test from https://sourceware.org/bugzilla/show_bug.cgi?id=14333#c5 a few hundred times. 2017-07-10 Paul Pluzhnikov <ppluzhnikov@google.com> Anoop V Chakkalakkal <anoop.vijayan@in.ibm.com> [BZ #14333] * stdlib/cxa_atexit.c (__internal_atexit): Use __exit_funcs_lock. (__new_exitfn): Fail registration when we finished at_exit processing. * stdlib/on_exit.c (__on_exit): Likewise. * stdlib/exit.c (__exit_funcs_done): New variable. (__run_exit_handlers): Use __exit_funcs_lock. * stdlib/exit.h (__exit_funcs_lock, __exit_funcs_done): New declarations. -- Paul Pluzhnikov
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