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* Decrease reference count if we won't use the thread, this avoids memoryDavid Xu2004-10-211-0/+4
| | | | | | | leak under some cases. Notes: svn path=/head/; revision=136735
* if system scope thread didn't set timeout, don't call clock_gettime syscallDavid Xu2004-10-081-8/+9
| | | | | | | | | before and after sleeping. Reviewed by: deischen Notes: svn path=/head/; revision=136286
* Use PTHREAD_SCOPE_SYSTEM to decide what should be done.David Xu2004-10-071-3/+2
| | | | Notes: svn path=/head/; revision=136227
* Follow kernel change, restore signal mask correctly by using a commandDavid Xu2004-10-071-21/+17
| | | | | | | of kse_thr_interrupt. Notes: svn path=/head/; revision=136223
* Allocate red zone and stack space together and then split red zone fromDavid Xu2004-10-061-7/+17
| | | | | | | | allocated space, orignal code left red zone unallocated, but those space can be allocated by user code, and result was providing no protection. Notes: svn path=/head/; revision=136190
* Add a wrapper for execve(). The exec'd process must be started withDaniel Eischen2004-09-262-0/+69
| | | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=135809
* _tcb_ctor takes two args.Olivier Houchard2004-09-242-2/+2
| | | | Notes: svn path=/head/; revision=135735
* Make sure we don't call _thr_start_sig_daemon() when SYSTEM_SCOPE_ONLY is ↵Suleiman Souhlal2004-09-241-2/+3
| | | | | | | | | defined. This makes libpthread usable on powerpc. Approved by: grehan (mentor), deischen Notes: svn path=/head/; revision=135714
* Add missing brackets. It was committed from wrong tree.David Xu2004-08-261-1/+1
| | | | Notes: svn path=/head/; revision=134326
* gcc -O2 cleanup. tested for a long time.David Xu2004-08-252-4/+4
| | | | | | | Reviewed by: deischen Notes: svn path=/head/; revision=134319
* Pull debug symbols in for statically linked binary.David Xu2004-08-211-0/+4
| | | | | | | Reviewed by: desichen Notes: svn path=/head/; revision=134115
* Fix compile, s/tp_dtv/tp_tdv/g.David Xu2004-08-163-3/+3
| | | | Notes: svn path=/head/; revision=133857
* Bring PPC up to date with latest TLS changes.Peter Grehan2004-08-162-3/+3
| | | | Notes: svn path=/head/; revision=133806
* 1. Add macro DTV_OFFSET to calculate dtv offset in tcb.David Xu2004-08-168-0/+10
| | | | | | | 2. Export symbols needed by debugger. Notes: svn path=/head/; revision=133801
* Add a file to collection all symbols will be needed by debugger.David Xu2004-08-161-0/+60
| | | | Notes: svn path=/head/; revision=133800
* Add TLS support for i386 and amd64.Doug Rabson2004-08-159-32/+41
| | | | Notes: svn path=/head/; revision=133756
* As long as we have a knob to force system scope threads, why not haveDaniel Eischen2004-08-124-8/+13
| | | | | | | | | | | | | | | | 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 Notes: svn path=/head/; revision=133563
* Check debugger suspending flag for system scope thread.David Xu2004-08-081-3/+7
| | | | | | | Reviewed by: deischen Notes: svn path=/head/; revision=133344
* Add a way to force 1:1 mode for libpthread. To do this, defineDaniel Eischen2004-08-075-42/+41
| | | | | | | | | | | | | | LIBPTHREAD_SYSTEM_SCOPE in the environment. You can still force libpthread to be built in strictly 1:1 by adding -DSYSTEM_SCOPE_ONLY to CFLAGS. This is kept for archs that don't yet support M:N mode. Requested by: rwatson Reviewed by: davidxu Notes: svn path=/head/; revision=133269
* s/TMDF_DONOTRUNUSER/TMDF_SUSPEND/gDavid Xu2004-08-033-4/+4
| | | | | | | Dicussed with: deischen Notes: svn path=/head/; revision=133047
* Save context in kernel fashion, so it can be restored byDavid Xu2004-07-311-2/+5
| | | | | | | kse_switchin syscall. Notes: svn path=/head/; revision=132928
* Remove unused field.David Xu2004-07-311-1/+0
| | | | Notes: svn path=/head/; revision=132927
* Macro optimize, this increases context switch speed about 2% on myDavid Xu2004-07-311-2/+2
| | | | | | | athlon64 machine. Notes: svn path=/head/; revision=132913
* PPC MD bits for KSE. Runs test cases OK. Crippled to 1:1 mode forPeter Grehan2004-07-198-0/+820
| | | | | | | the time being. Notes: svn path=/head/; revision=132400
* Don't include lock.h and pthread_md.h when we're being included byMarcel Moolenaar2004-07-181-0/+2
| | | | | | | libthread_db. Both headers are included seperately. Notes: svn path=/head/; revision=132333
* Copy lwp id to thread mailbox.David Xu2004-07-141-0/+1
| | | | Notes: svn path=/head/; revision=132128
* Call kse_switchin to switch context when being debugged.David Xu2004-07-134-24/+69
| | | | Notes: svn path=/head/; revision=132125
* Remove unused symbols.David Xu2004-07-131-14/+0
| | | | Notes: svn path=/head/; revision=132124
* Let debugger check signal, make SIGINFO works.David Xu2004-07-131-12/+25
| | | | Notes: svn path=/head/; revision=132122
* If _libkse_debug is not zero, activate thread mode.David Xu2004-07-131-0/+6
| | | | Notes: svn path=/head/; revision=132121
* Add code to support thread debugging.David Xu2004-07-135-44/+146
| | | | | | | | | | | | | | | | | | 1. Add global varible _libkse_debug, debugger uses the varible to identify libpthread. when the varible is written to non-zero by debugger, libpthread will take some special action at context switch time, it will check TMDF_DOTRUNUSER flags, if a thread has the flags set by debugger, it won't be scheduled, when a thread leaves KSE critical region, thread checks the flag, if it was set, the thread relinquish CPU. 2. Add pq_first_debug to select a thread allowd to run by debugger. 3. Some names prefixed with _thr are renamed to _thread prefix. which is allowed to run by debugger. Notes: svn path=/head/; revision=132120
* kse_switchin ABI was changed in kernel.David Xu2004-07-121-3/+2
| | | | Notes: svn path=/head/; revision=132021
* Check pending signals, if there is signal will be unblocked byDavid Xu2004-06-124-22/+25
| | | | | | | | | | | | | | | | | | | | | sigsuspend, thread shouldn't wait, in old code, it may be ignored. When a signal handler is invoked in sigsuspend, thread gets two different signal masks, one is in thread structure, sigprocmask() can retrieve it, another is in ucontext which is a third parameter of signal handler, the former is the result of sigsuspend mask ORed with sigaction's sa_mask and current signal, the later is the mask in thread structure before sigsuspend is called. After signal handler is called, the mask in ucontext should be copied into thread structure, and becomes CURRENT signal mask, then sigsuspend returns to user code. Reviewed by: deischen Tested by: Sean McNeil <sean@mcneil.com> Notes: svn path=/head/; revision=130374
* Avoid clobbering the red zone when running on the new context's stack inTim J. Robbins2004-06-071-0/+5
| | | | | | | _amd64_restore_context(). Notes: svn path=/head/; revision=130206
* Arm bits for libpthread. It has no chances to work and should be consideredOlivier Houchard2004-05-145-0/+471
| | | | | | | as stubs. Notes: svn path=/head/; revision=129206
* After forking and initializing the library to single-threadedDaniel Eischen2004-04-081-2/+3
| | | | | | | | | | | | | mode (where the forked thread is the one and only thread and is marked as system scope), set the system scope flag before initializing the signal mask. This prevents trying to use internal locks that haven't yet been initialized. Reported by: Dan Nelson <dnelson at allantgroup.com> Reviewed by: davidxu Notes: svn path=/head/; revision=128041
* Fix a POSIX conformance bug. POSIX says sigwait should return error numberDavid Xu2004-03-171-3/+3
| | | | | | | in return value not in errno. Notes: svn path=/head/; revision=127102
* Fixed a misspelling of 0 as NULL.Bruce Evans2004-03-141-1/+1
| | | | Notes: svn path=/head/; revision=126952
* style cleanup: Remove duplicate $FreeBSD$ tags.Colin Percival2004-02-101-2/+0
| | | | | | | | | | | These files had tags after the copyright notice, inside the comment block (incorrect, removed), and outside the comment block (correct). Approved by: rwatson (mentor) Notes: svn path=/head/; revision=125668
* Add cancellation point to sem_wait() and sem_timedwait() for psharedDaniel Eischen2004-02-061-10/+18
| | | | | | | | | | | semaphores. Also add cancellation cleanup handlers to keep semaphores in a consistent state. Submitted in part by: davidxu Reviewed by: davidxu Notes: svn path=/head/; revision=125522
* libkse was renamed to libpthread.David Xu2004-02-051-1/+1
| | | | Notes: svn path=/head/; revision=125468
* Provide a userland version of non-pshared semaphores and add cancellationDaniel Eischen2004-02-032-168/+152
| | | | | | | points to sem_wait() and sem_timedwait(). Also make sem_post signal-safe. Notes: svn path=/head/; revision=125373
* Now that libpthread is the default threading library, remove theMarcel Moolenaar2004-01-311-12/+0
| | | | | | | | compatibility link from libc_r to libpthread (previously a link from libc_r to libkse). Notes: svn path=/head/; revision=125258
* Change libkse back to libpthread and make it the defaultDaniel Eischen2004-01-301-0/+4
| | | | | | | | | | | | | | thread library for i386, amd64, and ia64. For alpha and sparc64 the library is not changed and remains libkse, and links are installed so that libpthread -> libc_r. The gcc -pthread option will be changed in a separate commit so that it links to -lpthread instead of -lc_r. Approved by: re@ Notes: svn path=/head/; revision=125230
* Return EPERM if mutex owner is not current thread but it tries toDavid Xu2004-01-171-18/+3
| | | | | | | | | unlock the mutex, old code confuses some programs when it returns EINVAL. Noticed by: bland Notes: svn path=/head/; revision=124606
* Add a simple work-around for deadlocking on recursive read locksDaniel Eischen2004-01-083-48/+86
| | | | | | | | | | | | | on a rwlock while there are writers waiting. We normally favor writers but when a reader already has at least one other read lock, we favor the reader. We don't track all the rwlocks owned by a thread, nor all the threads that own a rwlock -- we just keep a count of all the read locks owned by a thread. PR: 24641 Notes: svn path=/head/; revision=124252
* Kernel now supports per-thread sigaltstack, follow the change toDavid Xu2004-01-031-6/+1
| | | | | | | enable sigaltstack for scope system thread. Notes: svn path=/head/; revision=124095
* Return error code in errno, not in return value.David Xu2004-01-021-3/+6
| | | | Notes: svn path=/head/; revision=124056
* Fix a typo.David Xu2004-01-021-1/+1
| | | | Notes: svn path=/head/; revision=124055
* Forgot to commit this file for last commit. :(David Xu2003-12-291-0/+4
| | | | Notes: svn path=/head/; revision=123975
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