Rich Felker 8e43b5613e synchronize shared library dtor exec against concurrent loads/ctors ... previously, going way back, there was simply no synchronization here. a call to exit concurrent with ctor execution from dlopen could cause a dtor to execute concurrently with its corresponding ctor, or could cause dtors for newly-constructed libraries to be skipped. introduce a shutting_down state that blocks further ctor execution, producing the quiescence the dtor execution loop needs to ensure any kind of consistency, and that blocks further calls to dlopen so that a call into dlopen from a dtor cannot deadlock. better approaches to some of this may be possible, but the changes here at least make things safe.		2019-03-03 12:06:44 -05:00
..
dlstart.c	define and use internal macros for hidden visibility, weak refs	2018-09-05 14:05:14 -04:00
dynlink.c	synchronize shared library dtor exec against concurrent loads/ctors	2019-03-03 12:06:44 -05:00