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Commit Graph

672 Commits

Author SHA1 Message Date
Stefan Farfeleder
7e4cbc3a50 Include needed headers that were obtained through <pthread.h>. Sort headers
while here.
2005-09-01 15:21:23 +00:00
Daniel Eischen
f98418eb29 Allocate a thread's tcb last so it is easier to handle failures to
malloc() siginfo.

PR:	85468
2005-08-30 12:42:00 +00:00
Daniel Eischen
f12a8f9703 Handle failure to malloc() part of the thread structure.
PR:	83457
2005-08-29 13:49:18 +00:00
Daniel Eischen
c7c5df6fdb Don't attempt to initialize the rtld lock if it can't be malloc()'d.
PR:	83452
2005-08-29 13:47:42 +00:00
Stefan Farfeleder
ad7c49168f - Prefix MUTEX_TYPE_MAX with PTHREAD_ to avoid namespace pollution.
- Remove the macros MUTEX_TYPE_FAST and MUTEX_TYPE_COUNTING_FAST.

OK'ed by:	deischen
2005-08-19 21:31:42 +00:00
Daniel Eischen
2ce2892eaf Add usleep to the map files.
Noticed by:	davidxu
2005-08-03 01:54:52 +00:00
Daniel Eischen
7f2461f315 Add a cancellation point for usleep(). 2005-08-03 00:48:13 +00:00
Daniel Eischen
e059b9ce6c Remove an unused variable. 2005-07-29 21:49:47 +00:00
Daniel Eischen
ca7d07fa00 Catch up with the atomic_FOO_ptr() changes and silence a few warnings. 2005-07-29 21:06:09 +00:00
Ken Smith
a84020c2b9 Bump the shared library version number of all libraries that have not
been bumped since RELENG_5.

Reviewed by:	ru
Approved by:	re (not needed for commit check but in principle...)
2005-07-22 17:19:05 +00:00
Peter Wemm
3b4399f6a7 Clean out the leftovers from the i386_set_gsbase() TLS conversion.
Like on libthr, there is an i386_set_gsbase() stub implementation here
to avoid libc.so.5 issues.  This should likely be a weak symbol and I
expect this will be fixed soon.

Approved by:	re
2005-06-29 23:15:36 +00:00
David Xu
86a07ac068 Fix off-by-one nanosecond in macro TIMESPEC_ADD.
Reviewed by: deischen
Approved by: re (dwhite)
MFC after  : 4 days
2005-06-22 22:35:49 +00:00
John Baldwin
884f050a62 Add a missing END() to quiet a warning. 2005-05-31 19:58:23 +00:00
Peter Wemm
1ec622fdd6 Remove the special _amd64_set_gsbase() code for #ifdef COMPAT_32BIT, now
that the amd64 kernel implements i386_get/set_gsbase().  All the rest of
the ldt backwards compat code should go away soon.
2005-04-26 20:41:48 +00:00
Peter Wemm
72a79166ea Use the i386_set_gsbase() syscall if it is implemented in the kernel.
This is a little hairy here because the allocation and usage of this
functionality is split into two places in libpthread.
2005-04-14 00:13:20 +00:00
Olivier Houchard
e0d6cac076 Use the new atomic_cmpset_32(). 2005-04-07 22:06:05 +00:00
David Xu
ab7f22e264 Eliminate plt relocation for kse_switchin. 2005-03-21 23:10:35 +00:00
Xin LI
12927a8513 Change the spin lock logic to a reasonable one. We should spin when
the lock is held by other thread, but not when nobody owns it.  According
to deischen@, this part of code will never be hit in our threads
library, since it does not use locks without wait/wakeup functions.

Spotted by:	mingyanguo via ChinaUnix.net forum
Reviewed by:	deischen
2005-02-27 17:45:55 +00:00
Olivier Houchard
788d6eeca0 Bring in a more healthy version of the libpthread for arm, which uses
ARM_TP_ADDRESS.
2005-02-26 19:06:49 +00:00
Daniel Eischen
0e963ec574 Somewhere along the line, tick accumulation for SA threads was
changed to use the statclock.  Make sure we calculate the value
of a tick correctly in userland.

Noticed by:	Kazuaki Oda <kaakun at highway dot ne dot jp>
2005-02-18 16:07:05 +00:00
Daniel Eischen
888ab0185e Set the default guardsize and stacksize in the default thread
attribute when the library is initialized.
2005-02-15 15:02:11 +00:00
Daniel Eischen
36a1ac2c2e Increase the default stacksizes:
32-bit		64-bit
main thread	  2MB		  4MB
other threads	  1MB		  2MB
2005-02-13 18:38:06 +00:00
Daniel Eischen
de2faa4a12 Don't panic when sigsuspend is interrupted by a cancellation.
PR:	75273
2004-12-19 23:23:43 +00:00
Daniel Eischen
843d4004b3 Use a generic way to back threads out of wait queues when handling
signals instead of having more intricate knowledge of thread state
within signal handling.

Simplify signal code because of above (by David Xu).

Use macros for libpthread usage of pthread_cleanup_push() and
pthread_cleanup_pop().  This removes some instances of malloc()
and free() from the semaphore and pthread_once() implementations.

When single threaded and forking(), make sure that the current
thread's signal mask is inherited by the forked thread.

Use private mutexes for libc and libpthread.  Signals are
deferred while threads hold private mutexes.  This fix also
breaks www/linuxpluginwrapper; a patch that fixes it is at
http://people.freebsd.org/~deischen/kse/linuxpluginwrapper.diff

Fix race condition in condition variables where handling a
signal (pthread_kill() or kill()) may not see a wakeup
(pthread_cond_signal() or pthread_cond_broadcast()).

In collaboration with:	davidxu
2004-12-18 18:07:37 +00:00
Peter Wemm
9e6d5a03d4 i386_set_ldt() is not available when running 32 bit binaries on amd64
kernels.  Use the recently exposed direct-set routines instead.  This is
only activated for when we compile i386 support libraries on amd64.
2004-11-06 03:35:51 +00:00
Peter Wemm
2cdea9a39f Cosmetic tweaks to reduce diffs to the i386 counterpart. 2004-11-06 03:33:19 +00:00
Olivier Houchard
b341b08336 Partial support of KSE for arm. 2004-11-05 23:49:21 +00:00
David Xu
4dd715ced2 Save cancelflags in signal frame, this fixes a problem that
a thread in pthread_cond_wait handled a signal can no longer
be canceled.

Reviewed by: deischen
2004-11-01 10:49:34 +00:00
Brian Feldman
64926afd50 Make pthread_mutex_trylock(3) return EBUSY on failure, as all software
packages expect and seems to be most correct according to the slightly-
ambiguous standards.

MFC after:		1 month
Corroborated by:	POSIX <http://tinyurl.com/4uvub>
Reviewed by: 		silence on threads@
2004-10-31 05:03:50 +00:00
Ruslan Ermilov
a35d88931c For variables that are only checked with defined(), don't provide
any fake value.
2004-10-24 15:33:08 +00:00
David Xu
fca6ccde6e Check unhandled signals before thread marks itself as DEAD,
this reduces chances of signal losting problem found by
Peter Holm <peter@holm.cc>
2004-10-23 23:37:54 +00:00
David Xu
b4f9f84b96 1. Move thread list flags into new separate member, and atomically
put DEAD thread on GC list, this closes a race between pthread_join
   and thr_cleanup.
2. Introduce a mutex to protect tcb initialization, tls allocation and
   deallocation code in rtld seems no lock protection or it is broken,
   under stress testing, memory is corrupted.

Reviewed by: deischen
patch partly provided by: deischen
2004-10-23 23:28:36 +00:00
David Xu
39454d368f Decrease reference count if we won't use the thread, this avoids memory
leak under some cases.
2004-10-21 03:42:24 +00:00
David Xu
42c7735ce5 if system scope thread didn't set timeout, don't call clock_gettime syscall
before and after sleeping.

Reviewed by: deischen
2004-10-08 22:57:30 +00:00
David Xu
2dad2d6bfc Use PTHREAD_SCOPE_SYSTEM to decide what should be done. 2004-10-07 14:23:15 +00:00
David Xu
e897f51327 Follow kernel change, restore signal mask correctly by using a command
of kse_thr_interrupt.
2004-10-07 13:52:18 +00:00
David Xu
de97eeddd3 Allocate red zone and stack space together and then split red zone from
allocated space, orignal code left red zone unallocated, but those space
can be allocated by user code, and result was providing no protection.
2004-10-06 08:11:07 +00:00
Daniel Eischen
862e463a75 Add a wrapper for execve(). The exec'd process must be started with
the signal mask and pending signals of the calling thread.  These
are stored in userland in libpthread.

There is a small race condition in this patch which could cause
problems if a signal arrives after setting the (kernel) signal
mask and before exec'ing.  The thread's set of pending signals
also are not yet installed in the exec'd process.  Both of these
will be corrected with the addition of a special syscall.

Reported & Tested by:	Joost Bekkers <joost at jodocus dot org>
Reviewed by:	julian, davidxu
2004-09-26 06:50:15 +00:00
Olivier Houchard
99feca3bae _tcb_ctor takes two args. 2004-09-24 13:02:30 +00:00
Suleiman Souhlal
eea4bca56b Make sure we don't call _thr_start_sig_daemon() when SYSTEM_SCOPE_ONLY is defined. This makes libpthread usable on powerpc.
Approved by:	grehan (mentor), deischen
2004-09-24 06:36:31 +00:00
David Xu
1db81dc074 Add missing brackets. It was committed from wrong tree. 2004-08-26 02:41:01 +00:00
David Xu
28f5d1b766 gcc -O2 cleanup. tested for a long time.
Reviewed by: deischen
2004-08-25 23:42:40 +00:00
David Xu
0dabb2c8a0 Pull debug symbols in for statically linked binary.
Reviewed by: desichen
2004-08-21 11:49:19 +00:00
David Xu
f914e34db6 Fix compile, s/tp_dtv/tp_tdv/g. 2004-08-16 14:07:38 +00:00
Peter Grehan
391d4a3856 Bring PPC up to date with latest TLS changes. 2004-08-16 05:41:39 +00:00
David Xu
a002d437ea 1. Add macro DTV_OFFSET to calculate dtv offset in tcb.
2. Export symbols needed by debugger.
2004-08-16 03:27:29 +00:00
David Xu
497c17e0ae Add a file to collection all symbols will be needed by debugger. 2004-08-16 03:25:07 +00:00
Doug Rabson
99c8d0836d Add TLS support for i386 and amd64. 2004-08-15 16:28:05 +00:00
Daniel Eischen
b9de27c005 As long as we have a knob to force system scope threads, why not have
a knob to force process scope threads.  If the environment variable
LIBPTHREAD_PROCESS_SCOPE is set, force all threads to be process
scope threads regardless of how the application creates them.  If
LIBPTHREAD_SYSTEM_SCOPE is set (forcing system scope threads), it
overrides LIBPTHREAD_PROCESS_SCOPE.

        $ # To force system scope threads
        $ LIBPTHREAD_SYSTEM_SCOPE=anything threaded_app
        $ # To force process scope threads
        $ LIBPTHREAD_PROCESS_SCOPE=anything threaded_app
2004-08-12 12:12:12 +00:00
David Xu
78f687539a Check debugger suspending flag for system scope thread.
Reviewed by: deischen
2004-08-08 22:42:11 +00:00