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freebsd-dev/lib/libthr/thread
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Peter Wemm 70ba1e8fc1 When libthr and rtld start up, there are a number of magic spells cast 
in order to get the symbol binding state "just so".  This is to allow
locking to be activated and not run into recursion problems later.

However, one of the magic bits involves an explicit call to _umtx_op()
to force symbol resolution.  It does a wakeup operation on a fake,
uninitialized (ie: random contents) umtx.  Since libthr isn't active, this
is harmless.  Nothing can match the random wakeup.

However, valgrind finds this and is not amused.  Normally I'd just
write a suppression record for it, but the idea of passing random
args to syscalls (on purpose) just doesn't feel right.
2008-12-07 02:32:49 +00:00
..
Makefile.inc Add POSIX pthread API pthread_getcpuclockid() to get a thread's cpu 2008-03-22 09:59:20 +00:00
thr_affinity.c Avoid various shadowed variables. libthr is now almost WARNS=4 clean except 2008-04-23 21:06:51 +00:00
thr_atfork.c Replace internal usage of struct umtx with umutex which can supports 2006-09-06 04:04:10 +00:00
thr_attr.c Avoid various shadowed variables. libthr is now almost WARNS=4 clean except 2008-04-23 21:06:51 +00:00
thr_autoinit.c
thr_barrier.c _thr_ucond_wait drops lock, we should pick it up again. 2006-12-05 23:46:11 +00:00
thr_barrierattr.c WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
thr_cancel.c Tweak _thr_cancel_leave_defer a bit to fix a possible race. 2006-12-05 05:01:57 +00:00
thr_clean.c Make pthread_cleanup_push() and pthread_cleanup_pop() as a pair of macros, 2008-06-09 01:14:10 +00:00
thr_concurrency.c WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
thr_cond.c Remove unused functions. 2008-04-02 08:33:42 +00:00
thr_condattr.c In function pthread_condattr_getpshared, store result correctly. 2008-08-01 01:21:49 +00:00
thr_create.c Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save 2008-04-29 03:58:18 +00:00
thr_detach.c WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
thr_equal.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
thr_event.c Allow psaddr_t to be widened by using thr_pread_{int,long,ptr}, 2008-09-14 16:07:21 +00:00
thr_exit.c Move call to _malloc_thread_cleanup() so that if this is the last thread, 2008-09-09 17:14:32 +00:00
thr_fork.c Provide custom simple allocator for rtld locks in libthr. The allocator 2008-12-02 11:58:31 +00:00
thr_getcpuclockid.c Add POSIX pthread API pthread_getcpuclockid() to get a thread's cpu 2008-03-22 09:59:20 +00:00
thr_getprio.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
thr_getschedparam.c use rtprio_thread system call to get or set thread priority. 2006-09-21 04:21:30 +00:00
thr_info.c If a thread who's name is being set is not the current thread, use macros 2007-04-05 07:20:31 +00:00
thr_init.c - Reduce function call overhead for uncontended case. 2008-05-29 07:57:33 +00:00
thr_join.c If a thread was detached, return EINVAL instead, the error code 2006-11-28 11:05:31 +00:00
thr_kern.c use rtprio_thread system call to get or set thread priority. 2006-09-21 04:21:30 +00:00
thr_kill.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
thr_list.c Eliminate atomic operations in thread cancellation functions, it should 2006-11-24 09:57:38 +00:00
thr_main_np.c WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
thr_multi_np.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
thr_mutex.c Add two commands to _umtx_op system call to allow a simple mutex to be 2008-06-24 07:32:12 +00:00
thr_mutexattr.c pthread_mutexattr_destroy() was accidentally broken in last revision, 2008-03-20 11:47:08 +00:00
thr_once.c Eliminate global mutex by using pthread_once's state field as 2008-05-30 00:02:59 +00:00
thr_printf.c Import my recent 1:1 threading working. some features improved includes: 2005-04-02 01:20:00 +00:00
thr_private.h Make pthread_cleanup_push() and pthread_cleanup_pop() as a pair of macros, 2008-06-09 01:14:10 +00:00
thr_pspinlock.c Reverse the logic of UP and SMP. 2007-10-16 07:36:02 +00:00
thr_resume_np.c Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save 2008-04-29 03:58:18 +00:00
thr_rtld.c When libthr and rtld start up, there are a number of magic spells cast 2008-12-07 02:32:49 +00:00
thr_rwlock.c don't include pthread_np.h, it is not used. 2008-04-14 08:08:40 +00:00
thr_rwlockattr.c WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
thr_self.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
thr_sem.c Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save 2008-04-29 03:58:18 +00:00
thr_setprio.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
thr_setschedparam.c use rtprio_thread system call to get or set thread priority. 2006-09-21 04:21:30 +00:00
thr_sig.c Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save 2008-04-29 03:58:18 +00:00
thr_single_np.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
thr_spec.c In _pthread_key_create() ensure that libthr is initialized. This 2007-11-06 21:50:43 +00:00
thr_spinlock.c Avoid various shadowed variables. libthr is now almost WARNS=4 clean except 2008-04-23 21:06:51 +00:00
thr_stack.c WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
thr_suspend_np.c Use UMTX_OP_WAIT_UINT_PRIVATE and UMTX_OP_WAKE_PRIVATE to save 2008-04-29 03:58:18 +00:00
thr_switch_np.c WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
thr_symbols.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00
thr_syscalls.c Call the fcntl compatiblity wrapper from the thread library fcntl wrappers 2008-05-30 14:47:42 +00:00
thr_umtx.c Add two commands to _umtx_op system call to allow a simple mutex to be 2008-06-24 07:32:12 +00:00
thr_umtx.h Add two commands to _umtx_op system call to allow a simple mutex to be 2008-06-24 07:32:12 +00:00
thr_yield.c Remove 3rd clause, renumber, ok per email 2007-01-12 07:26:21 +00:00