d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
137,935 Commits 4 Branches 49 Tags
Commit Graph

366 Commits

Author SHA1 Message Date
David Xu
04a57d2c83 Resolve __error()'s PLT early so that it needs not to be resolved again, 
otherwise rwlock is recursivly called when signal happens and the __error
was never resolved before.
 2008-03-21 02:31:55 +00:00
Ruslan Ermilov
a1292a02d3 pthread_mutexattr_destroy() was accidentally broken in last revision, 
unbreak it.  We should really start compiling this with warnings.
 2008-03-20 11:47:08 +00:00
David Xu
8c38215f50 Preserve application code's errno in rtld locking code, it attemps to keep 
any case safe.
 2008-03-20 09:35:44 +00:00
David Xu
48ebe2ebc4 Make pthread_mutexattr_settype to return error number directly and 
conformant to POSIX specification.

Bug reported by: modelnine at modelnine dt org
 2008-03-20 08:27:14 +00:00
David Xu
c8a4eae56f don't reduce new thread's refcount if current thread can not set cpuset 
for it, since the new thread will reduce it by itself.
 2008-03-19 09:33:07 +00:00
David Xu
519e8d87bb - Trim trailing spaces. 
- Use a different sigmask variable name to avoid confusing.
 2008-03-19 08:13:04 +00:00
David Xu
86a06c6000 if passed thread pointer is equal to current thread, pass -1 to kernel 
to speed up searching.
 2008-03-19 06:38:21 +00:00
David Xu
2ea1f90a18 - Copy signal mask out before THR_UNLOCK(), because THR_UNLOCK() may call 
_thr_suspend_check() which messes sigmask saved in thread structure.
- Don't suspend a thread has force_exit set.
- In pthread_exit(), if there is a suspension flag set, wake up waiting-
  thread after setting PS_DEAD, this causes waiting-thread to break loop
  in suspend_common().
 2008-03-18 02:06:51 +00:00
David Xu
a9a11568ff Actually delete SIGCANCEL mask for suspended thread, so the signal will not 
be masked when it is resumed.
 2008-03-16 03:22:38 +00:00
David Xu
150b71918c If a thread is cancelled, it may have already consumed a umtx_wake, 
check waiter and semphore counter to see if we may wake up next thread.
 2008-03-11 03:26:47 +00:00
David Xu
8a18c0d3c8 Fix a bug when calculating remnant size. 2008-03-06 03:24:03 +00:00
David Xu
697b4b49be Don't report death event to debugger if it is a forced exit. 2008-03-06 02:07:18 +00:00
David Xu
70e79fbb0d Restore code setting new thread's scheduler parameters, I was thinking 
that there might be starvations, but because we have already locked the
thread, the cpuset settings will always be done before the new thread
does real-world work.
 2008-03-06 01:59:08 +00:00
David Xu
1cb51125aa Increase and decrease in_sigcancel_handler accordingly to avoid possible 
error caused by nested SIGCANCEL stack, it is a bit complex.
 2008-03-05 07:04:55 +00:00
David Xu
54dff16b26 Use cpuset defined in pthread_attr for newly created thread, for now, 
we set scheduling parameters and cpu binding fully in userland, and
because default scheduling policy is SCHED_RR (time-sharing), we set
default sched_inherit to PTHREAD_SCHED_INHERIT, this saves a system
call.
 2008-03-05 07:01:20 +00:00
David Xu
07bbb16640 Add more cpu affinity function's symbols. 2008-03-05 06:56:35 +00:00
David Xu
21845eb98d Check actual size of cpuset kernel is using and define underscore version 
of API.
 2008-03-05 06:55:48 +00:00
David Xu
76a9679f8e If a new thread is created, it inherits current thread's signal masks, 
however if current thread is executing cancellation handler, signal
SIGCANCEL may have already been blocked, this is unexpected, unblock the
signal in new thread if this happens.

MFC after: 1 week
 2008-03-04 04:28:59 +00:00
David Xu
54c9b47c2b Include cpuset.h, unbreak compiling. 2008-03-04 03:45:11 +00:00
David Xu
a759db946a implement pthread_attr_getaffinity_np and pthread_attr_setaffinity_np. 2008-03-04 03:03:24 +00:00
David Xu
57030e1071 Implement functions pthread_getaffinity_np and pthread_setaffinity_np to 
get and set thread's cpu affinity mask.
 2008-03-03 09:16:29 +00:00
Dag-Erling Smørgrav
096ba44775 _pthread_mutex_isowned_np(): use a more reliable method; the current code 
will work in simple cases, but may fail in more complicated ones.

Reviewed by:	davidxu
 2008-02-14 12:37:58 +00:00
David E. O'Brien
a2c4cd4549 style.Makefile(5) 2008-02-13 05:25:43 +00:00
David E. O'Brien
6cc9986927 style(9) 2008-02-13 05:12:05 +00:00
Dag-Erling Smørgrav
47252f4e65 Yet another pointy hat: when I zapped FBSDprivate_1.1, I forgot to move 
its contents to FBSDprivate_1.0.
 2008-02-06 20:45:46 +00:00
Dag-Erling Smørgrav
d29b081fee Remove unnecessary prototype. 2008-02-06 20:43:19 +00:00
Dag-Erling Smørgrav
a9b9744ff8 Convert pthread.map to the format expected by version_gen.awk, and modify 
the Makefile accordingly; libthr now explicitly uses libc's Versions.def.

MFC after:	2 weeks
 2008-02-06 20:25:00 +00:00
Dag-Erling Smørgrav
facfc98226 Remove incorrectly added FBSDprivate_1.1 namespace, and move symbols which 
are new in FreeBSD 8 to the appropriate namespace.
 2008-02-06 20:20:29 +00:00
Dag-Erling Smørgrav
1cbdac2668 Per discussion on -threads, rename _islocked_np() to _isowned_np(). 2008-02-06 19:34:31 +00:00
Dag-Erling Smørgrav
fcd61d9141 After careful consideration (and a brief discussion with attilio@), change 
the semantics of pthread_mutex_islocked_np() to return true if and only if
the mutex is held by the current thread.

Obviously, change the regression test to match.

MFC after:	2 weeks
 2008-02-04 12:35:23 +00:00
Dag-Erling Smørgrav
5fd410a787 Add pthread_mutex_islocked_np(), a cheap way to verify that a mutex is 
locked.  This is intended primarily to support the userland equivalent
of the various *_ASSERT_LOCKED() macros we have in the kernel.

MFC after:	2 weeks
 2008-02-03 22:38:10 +00:00
David Xu
8d0a4dab61 SYSTEM_SCOPE_ONLY flag is no longer needed, it is the only mode libthr 
supports.
 2008-01-18 04:29:36 +00:00
David Xu
0c921dadbb sem_post() requires to return -1 on error. 2008-01-07 02:26:29 +00:00
David Xu
9ba01c866b call underscore version of pthread_cleanup_pop instead. 2007-12-20 04:40:12 +00:00
David Xu
06c8eb55ce Remove vfork() overloading, it is no longer needed. 2007-12-20 04:32:28 +00:00
David Xu
c5f411515c Add function prototypes. 2007-12-17 02:53:11 +00:00
David Xu
093fcf1694 1. Add function pthread_mutex_setspinloops_np to turn a mutex's spin 
loop count.
2. Add function pthread_mutex_setyieldloops_np to turn a mutex's yield
   loop count.
3. Make environment variables PTHREAD_SPINLOOPS and PTHREAD_YIELDLOOPS
   to be only used for turnning PTHREAD_MUTEX_ADAPTIVE_NP mutex.
 2007-12-14 06:25:57 +00:00
David Xu
6a663207e7 Enclose all code for macro ENQUEUE_MUTEX in do while statement, and 
add missing brackets.

MFC: after 1 day
 2007-12-11 08:00:58 +00:00
Jason Evans
b6b7fd3e2a Fix pointer dereferencing problems in _pthread_mutex_init_calloc_cb() that 
were obscured by pseudo-opaque pthreads API pointer casting.
 2007-11-28 00:16:24 +00:00
Jason Evans
e1636e1f97 Add _pthread_mutex_init_calloc_cb() to libthr and libkse, so that malloc(3) 
(part of libc) can use pthreads mutexes without causing infinite recursion
during initialization.
 2007-11-27 03:16:44 +00:00
David Xu
da4410f25f Simplify code, fix a thread cancellation bug in sem_wait and sem_timedwait. 2007-11-23 05:42:52 +00:00
David Xu
4877aaebc1 Reuse nwaiter member field to record number of waiters, in sem_post(), 
this should reduce the chance having to do a syscall when there is no
waiter in the semaphore.
 2007-11-21 06:01:02 +00:00
David Xu
73ba600faa Remove warning level and aliasing restrictions. 2007-11-21 05:29:57 +00:00
David Xu
9e1ddd5fa0 Convert ceiling type to unsigned integer before comparing, fix compiler 
warnings.
 2007-11-21 05:25:27 +00:00
David Xu
922d56f9de Add some function prototypes. 2007-11-21 05:23:54 +00:00
David Xu
6fdfcacb4a Remove umtx_t definition, use type long directly, add wrapper function 
_thr_umtx_wait_uint() for umtx operation UMTX_OP_WAIT_UINT, use the
function in semaphore operations, this fixed compiler warnings.
 2007-11-21 05:21:58 +00:00
John Birrell
0aad0f2282 These are the things that the tinderbox has problems with because it 
doesn't use the default CFLAGS which contain -fno-strict-aliasing.

Until the code is cleaned up, just add -fno-strict-aliasing to the
CFLAGS of these for the tinderboxes' sake, allowing the rest of the
tree to have -Werror enabled again.
 2007-11-20 02:07:30 +00:00
Marius Strobl
9a2706abcc In _pthread_key_create() ensure that libthr is initialized. This 
fixes a NULL-dereference of curthread when libstdc+ initializes
the exception handling globals on archs we can't use GNU TLS due
to lack of support in binutils 2.15 (i.e. arm and sparc64), yet,
thus making threaded C++ programs compiled with GCC 4.2.1 work
again on these archs.

Reviewed by:	davidxu
MFC after:	3 days
 2007-11-06 21:50:43 +00:00
David Xu
56b45d9067 Avoid doing adaptive spinning for priority protected mutex, current 
implementation always does lock in kernel.
 2007-10-31 01:50:48 +00:00
David Xu
55f18e070f Don't do adaptive spinning if it is running on UP kernel. 2007-10-31 01:44:50 +00:00