It's used to implement pthread_attr_getstack to get the main thread stack base but not sure if anything interesting uses that. CopperheadOS calls it in libc init to save the main thread stack base for use in the dynamic object size checks (fast path for data on current stack).
-
-
Now that debuggerd is gone it doesn't really matter anymore beyond forbidding self-ptrace which isn't very important.
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.