Konstantin Belousov 55a1911ef2 The getcontext() from the __fillcontextx() call in the ... check_deferred_signal() returns twice, since handle_signal() emulates the return from the normal signal handler by sigreturn(2)ing the passed context. Second return is performed on the destroyed stack frame, because __fillcontextx() has already returned. This causes undefined and bad behaviour, usually the victim thread gets SIGSEGV. Avoid nested frame and the need to return from it by doing direct call to getcontext() in the check_deferred_signal() and using a new private libc helper __fillcontextx2() to complement the context with the extended CPU state if the deferred signal is still present. The __fillcontextx() is now unused, but is kept to allow older libthr.so to be used with the new libc. Mark __fillcontextx() as returning twice [1]. Reported by: pgj Pointy hat to: kib Discussed with: dim Tested by: pgj, dim Suggested by: jilles [1] MFC after: 1 week		2013-05-28 04:54:16 +00:00
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Makefile.inc	Introduce a non-portable function pthread_getthreadid_np(3) to retrieve	2011-02-07 21:26:46 +00:00
thr_affinity.c	Don't compare thread pointers again.	2010-09-13 11:58:42 +00:00
thr_attr.c	Use sysctl kern.sched.cpusetsize to retrieve size of kernel cpuset.	2010-11-02 02:13:13 +00:00
thr_autoinit.c
thr_barrier.c	When destroying a barrier, waiting all threads exit the barrier,	2012-03-16 04:35:52 +00:00
thr_barrierattr.c
thr_cancel.c	To support stack unwinding for cancellation points, add -fexceptions flag	2010-09-25 01:57:47 +00:00
thr_clean.c	Only access unwind_disabled when _PTHREAD_FORCED_UNWIND is defined.	2010-09-25 09:43:24 +00:00
thr_concurrency.c
thr_cond.c	Do defered mutex wakeup once.	2012-08-12 00:56:56 +00:00
thr_condattr.c
thr_create.c	Implement the __pthread_map_stacks_exec() for libthr.	2011-01-09 12:38:40 +00:00
thr_detach.c	Convert thread list lock from mutex to rwlock.	2010-09-13 07:03:01 +00:00
thr_equal.c
thr_event.c
thr_exit.c	change code to use unwind.h.	2010-09-30 12:59:56 +00:00
thr_fork.c	Eliminate redundant code, _thr_spinlock_init() has already been called	2012-08-23 05:15:15 +00:00
thr_getcpuclockid.c	Implement syscall clock_getcpuclockid2, so we can get a clock id	2012-08-17 02:26:31 +00:00
thr_getprio.c
thr_getschedparam.c	Don't forget to initialize return value.	2012-07-20 05:47:12 +00:00
thr_getthreadid_np.c	Introduce a non-portable function pthread_getthreadid_np(3) to retrieve	2011-02-07 21:26:46 +00:00
thr_info.c	Simplify code by replacing _thr_ref_add() with _thr_find_thread().	2012-07-20 03:37:19 +00:00
thr_init.c	libthr: Always use the threaded rtld lock implementation.	2013-01-18 23:08:40 +00:00
thr_join.c	Fix typo.	2010-09-19 08:55:36 +00:00
thr_kern.c	libthr: Always use the threaded rtld lock implementation.	2013-01-18 23:08:40 +00:00
thr_kill.c	Convert thread list lock from mutex to rwlock.	2010-09-13 07:03:01 +00:00
thr_list.c	Make code more stable by checking NULL pointers.	2012-02-11 04:12:12 +00:00
thr_main_np.c
thr_multi_np.c
thr_mutex.c	MFp4:	2012-08-11 23:17:02 +00:00
thr_mutexattr.c
thr_once.c	r179417 introduced a bug into pthread_once(). Previously pthread_once()	2011-04-20 14:19:34 +00:00
thr_printf.c
thr_private.h	libthr: Remove _thr_rtld_fini(), unused since r245630.	2013-04-12 19:47:32 +00:00
thr_pspinlock.c
thr_resume_np.c	In suspend_common(), don't wait for a thread which is in creation, because	2012-08-27 03:09:39 +00:00
thr_rtld.c	libthr: Remove _thr_rtld_fini(), unused since r245630.	2013-04-12 19:47:32 +00:00
thr_rwlock.c	Follow changes made in revision 232144, pass absolute timeout to kernel,	2012-02-27 13:38:52 +00:00
thr_rwlockattr.c	Revert revision 214007, I realized that MySQL wants to resolve	2010-10-20 02:34:02 +00:00
thr_self.c
thr_sem.c
thr_setprio.c	Don't assign same value.	2012-07-20 03:22:17 +00:00
thr_setschedparam.c	Don't assign same value.	2012-07-20 03:22:17 +00:00
thr_sig.c	The getcontext() from the __fillcontextx() call in the	2013-05-28 04:54:16 +00:00
thr_single_np.c
thr_sleepq.c	Create a common function lookup() to search a chan, this eliminates	2012-05-10 09:30:37 +00:00
thr_spec.c	Return one-based key so that user can check if the key is ever allocated	2013-05-16 03:01:04 +00:00
thr_spinlock.c
thr_stack.c	For the process that already loaded libthr but still not initialized	2011-01-10 16:10:25 +00:00
thr_suspend_np.c	In suspend_common(), don't wait for a thread which is in creation, because	2012-08-27 03:09:39 +00:00
thr_switch_np.c
thr_symbols.c
thr_syscalls.c	Add accept4() system call.	2013-05-01 20:10:21 +00:00
thr_umtx.c	Use clockid parameter instead of hard-coded CLOCK_REALTIME.	2012-03-19 00:07:10 +00:00
thr_umtx.h	libthr: Fix a parameter name in an internal header file.	2013-04-27 14:21:36 +00:00
thr_yield.c