1 2001-08-23 Roland McGrath <roland@frob.com>
3 * sysdeps/pthread/bits/libc-lock.h (__libc_cleanup_region_start): Take
4 new first argument, skip the cleanup handler if it's zero.
5 (_LIBC_LOCK_RECURSIVE_INITIALIZER): New macro.
6 (__libc_lock_define_initialized_recursive): Use it.
7 * sysdeps/pthread/bits/stdio-lock.h: File removed.
8 The sysdeps/generic file from the main tree now suffices.
10 2001-08-22 Roland McGrath <roland@frob.com>
12 * sysdeps/pthread/bits/stdio-lock.h: Include <bits/libc-lock.h>
13 instead of <pthread.h>.
14 (_IO_lock_t): Define this typedef using __libc_lock_define_recursive.
15 (_IO_lock_initializer): Add braces.
16 (_IO_lock_lock): Use __libc_lock_lock_recursive.
17 (_IO_lock_unlock): Use __libc_lock_unlock_recursive.
19 * sysdeps/pthread/bits/libc-lock.h (__libc_lock_recursive_t): New type.
20 (__libc_lock_define_initialized_recursive): Use it.
21 (__libc_lock_init_recursive): Likewise.
22 (__libc_lock_fini_recursive): Likewise.
23 (__libc_lock_lock_recursive): Likewise.
24 (__libc_lock_trylock_recursive): Likewise.
25 (__libc_lock_unlock_recursive): Likewise.
26 (__libc_lock_define_recursive): New macro.
28 2001-08-14 Jakub Jelinek <jakub@redhat.com>
30 * lockfile.c (__pthread_provide_lockfile): New variable.
31 * pthread.c (__pthread_require_lockfile): New variable.
32 * cancel.c (__pthread_require_lockfile): New variable.
34 2001-07-31 Ulrich Drepper <drepper@redhat.com>
36 * tst-context.c (threadfct): Initialize context before calling
39 * Examples/ex17.c: Make sure test thread is around long enough.
41 2001-07-26 kaz Kojima <kkojima@rr.iij4u.or.jp>
43 * sysdeps/sh/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF): Defined.
45 2001-07-24 Ulrich Drepper <drepper@redhat.com>
47 * tst-context.c (main): Print explanation before bailing out
48 because context handling is not supported.
50 2001-07-23 Ulrich Drepper <drepper@redhat.com>
52 * Makefile (tests): Add tst-context.
53 * tst-context.c: New file.
55 * sysdeps/pthread/bits/stdio-lock.h: Define
56 _IO_cleanup_region_start_noarg.
58 2001-07-23 Jakub Jelinek <jakub@redhat.com>
60 * sysdeps/alpha/pt-machine.h (FLOATING_STACKS): Define.
61 (ARCH_STACK_MAX_SIZE): Define.
62 * sysdeps/sparc/sparc32/pt-machine.h: Likewise.
63 * sysdeps/sparc/sparc64/pt-machine.h: Likewise.
65 2001-07-19 Jakub Jelinek <jakub@redhat.com>
67 * sysdeps/i386/useldt.h: Fix typo in ARCH_STACK_MAX_SIZE comment.
69 * sysdeps/ia64/pt-machine.h (FLOATING_STACKS): Define.
70 (ARCH_STACK_MAX_SIZE): Define.
71 * manager.c (pthread_allocate_stack): Handle FLOATING_STACKS with
72 NEED_SEPARATE_REGISTER_STACK.
74 2001-07-16 Andreas Schwab <schwab@suse.de>
76 * Makefile (before-compile): Don't add $(objpfx)crti.o.
77 (omit-deps): Add crti.
78 ($(objpfx)libpthread.so): Depend on $(objpfx)crti.o, but make sure
79 it is filtered out of the link command.
81 2001-07-16 Ulrich Drepper <drepper@redhat.com>
83 * pthread.c (pthread_initialize): For FLOATING_STACKS don't bother
84 to find the right value for __pthread_initial_thread_bos, it's not
85 used. If not FLOATING_STACKS first run
86 __pthread_init_max_stacksize.
88 2001-06-16 H.J. Lu <hjl@gnu.org>
90 * internals.h: Include <stackinfo.h>.
92 * attr.c: Don't include <stackinfo.h> here.
94 * manager.c: Likewise.
95 * pthread.c: Likewise.
96 * ptlongjmp.c: Likewise.
98 2001-03-23 Matthew Wilcox <willy@ldl.fc.hp.com>
100 * attr.c: Make _STACK_GROWS_UP work.
101 * internals.h: Likewise.
102 * manager.c: Likewise.
103 * pthread.c: Likewise.
105 2001-06-15 H.J. Lu <hjl@gnu.org>
107 * pthread.c (__pthread_reset_main_thread): Fix a typo.
109 2001-02-02 John S. Marvin <jsm@udlkern.fc.hp.com>
111 * semaphore.h: Use struct _pthread_fastlock as an element of
112 sem_t instead of an identical struct.
113 * rwlock.c: Remove casts.
114 * semaphore.c: Likewise.
116 2001-04-30 Alan Modra <amodra@one.net.au>
118 * sysdeps/unix/sysv/linux/hppa/pt-initfini.c: New.
120 2001-05-25 Bruce Mitchener <bruce@cubik.org>
122 * linuxthreads.texi: Spelling corrections.
124 2001-05-25 Ulrich Drepper <drepper@redhat.com>
126 * oldsemaphore.c (__old_sem_wait): Clear p_nextwaiting before
127 returning successfully.
128 Patch by Gene Cooperman <gene@ccs.neu.edu>.
130 2001-05-24 Ulrich Drepper <drepper@redhat.com>
132 * spinlock.c (__pthread_lock) [HAS_COMPARE_AND_SWAP]: Before doing any
133 serious work try once whether the lock is uncontested.
134 Remove duplicate reading of __status before loop.
135 Change suggested by Hans Boehm <hans_boehm@hp.com>.
137 * spinlock.h (__pthread_trylock): Remove need for oldstatus variable.
138 (__pthread_alt_trylock): Likewise.
140 2001-05-01 Kaz Kylheku <kaz@ashi.footprints.net>
142 Memory barrier overhaul following line by line inspection.
143 * mutex.c (pthread_once): Missing memory barriers added.
144 * pthread.c (__pthread_wait_for_restart_signal,
145 __pthread_timedsuspend_new, __pthread_restart_new): Added
146 memory barriers ``just in case'' and for documentary value.
147 * spinlock.c (__pthread_release): New inline function for releasing
148 spinlock, to complement __pthread_acquire. Includes memory
149 barrier prior to assignment to spinlock, and __asm __volatile
150 dance to prevent reordering or optimization of the spinlock access.
151 * spinlock.c (__pthread_unlock, __pthread_alt_lock,
152 __pthread_alt_timedlock, __pthread_alt_unlock,
153 __pthread_compare_and_swap): Updated to use new __pthread_release
154 instead of updating spinlock directly.
155 * spinlock.c (__pthread_lock, __pthread_unlock, wait_node_alloc,
156 wait_node_free, wait_node_dequeue, __pthread_alt_lock,
157 __pthread_alt_timedlock, __pthread_alt_unlock, __pthread_acquire):
158 Memory barrier overhaul. Lots of missing memory barriers added,
159 a couple needless ones removed.
160 * spinlock.c (__pthread_compare_and_swap): testandset optimization
161 removed, just calls __pthread_acquire, which has the new read
162 barrier in it before its testandset.
164 2001-05-20 Roland McGrath <roland@frob.com>
166 * Makeconfig: New file, variables used to be in main libc Makeconfig.
168 2001-05-09 Geoff Keating <geoffk@redhat.com>
170 * sysdeps/powerpc/pt-machine.h
171 (HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS): Define.
172 (__compare_and_swap): Remove memory barriers.
173 (__compare_and_swap_with_release_semantics): New function.
175 2001-04-24 Andreas Jaeger <aj@suse.de>
177 * wrapsyscall.c: send* and recv* return ssize_t.
179 * sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Unlock the
180 mutex instead of double locking it.
181 Reported by Pierre Artaud <partaud@sodatec.com>.
183 2001-04-23 Ulrich Drepper <drepper@redhat.com>
185 * sysdeps/pthread/getcpuclockid.c: Make function generic, test
186 using #ifdef whether the clock is available.
187 * sysdeps/unix/sysv/linux/i386/getcpuclockid.c: Removed.
189 * sysdeps/ia64/Versions: New file.
191 * sysdeps/unix/sysv/linux/ia64/pt-initfini.c (_init): We don't
192 have to call __gmon_start__ in the libpthread DSO.
193 * sysdeps/pthread/pt-initfini.c (_init): Likewise.
195 * Makefile (libpthread-routines): Add ptclock_gettime and
197 * internals.h: Don't use cpuclock-init.h definitions, use
198 hp-timing.h definitions.
199 * pthread.c: Likewise.
200 * manager.c: Likewise.
201 * ptclock_gettime.c: New file.
202 * ptclock_settime.c: New file.
203 * internals.h: Fix parameter type for __pthread_clock_gettime and
204 __pthread_clock_settime.
206 * sysdeps/i386/i586/ptclock_gettime.c: Removed.
207 * sysdeps/i386/i586/ptclock_settime.c: Removed.
208 * sysdeps/i386/i586/Makefile: Removed.
210 2001-04-22 Ulrich Drepper <drepper@redhat.com>
212 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_ASYNCH_IO.
213 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
215 2001-04-21 Andreas Jaeger <aj@suse.de>
217 * sysdeps/pthread/timer_routines.c (thread_func): Add noreturn
218 attribute, remove statements that will never be executed.
219 (thread_func): Remove mutex_unlock call since it's never executed.
220 (thread_func): Fix comment as suggested by Jakub Jelinek.
222 * manager.c (__pthread_manager): Add noreturn
224 (pthread_start_thread): Likewise, remove return statement.
225 (pthread_start_thread_event): Likewise.
226 Add noreturn attribute for pthread_handle_exit.
227 * weaks.c: Add noreturn attribute for pthread_exit.
229 * internals.h: Add __pthread_clock_gettime and
230 __pthread_clock_settime prototypes.
232 2001-04-21 Ulrich Drepper <drepper@redhat.com>
234 * internals.h: Include <cpuclock-init.h>.
235 (struct _pthread_descr_struct): Add p_cpuclock_offset field if
236 CPUCLOCK_VARDEF is defined.
237 * pthread.c (__pthread_initialize_minimal): Initialize
238 p_cpuclock_offset field for main thread if CPUCLOCK_INIT is defined.
239 * manager.c (pthread_start_thread): Set p_cpuclock_offset field
240 for new thread to current CPU clock value.
242 * sysdeps/i386/useldt.h: Extend all the macros to handle 8-byte values.
244 * sysdeps/i386/i586/Makefile: New file.
245 * sysdeps/i386/i586/Versions: New file.
246 * sysdeps/i386/i586/ptclock_gettime.c: New file.
247 * sysdeps/i386/i586/ptclock_settime.c: New file.
248 * sysdeps/i386/i686/Implies: New file.
250 2001-04-18 Jakub Jelinek <jakub@redhat.com>
252 * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: Put specs into
253 $generated, not $postclean-generated.
255 2001-04-18 Andreas Jaeger <aj@suse.de>
257 * Makefile (otherlibs): Added.
259 2001-04-18 Jakub Jelinek <jakub@redhat.com>
261 * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile: New file.
263 2001-04-16 Ulrich Drepper <drepper@redhat.com>
265 * signals.c (sigwait): NSIG is no signal number. Block all
266 signals while in signal handler for signals in SET.
267 Patch by Manfred Spraul <manfred@colorfullife.com>.
269 2001-04-12 Ulrich Drepper <drepper@redhat.com>
271 * tst-cancel.c: Disable most tests. Add new test where all
272 cleanup handlers must run.
273 * Makefile (tests): Add tst-cancel again.
275 * cancel.c (__pthread_perform_cleanup): Correct condition for
276 leaving cleanup loop early.
278 * sysdeps/i386/Makefile: Make sure gcc uses a frame pointer for
279 all the files which use CURRENT_STACK_FRAME.
280 * sysdeps/i386/pt-machine.h (CURRENT_STACK_FRAME): Define using
281 __builtin_frame_address.
282 * sysdeps/i386/i686/pt-machine.h: Likewise.
284 2001-04-11 Ulrich Drepper <drepper@redhat.com>
286 * Makefile (tests): Comment out tst-cancel for now.
288 * tst-cancel.c (main): Cleanup 4 is supposed to run. Create
289 temporary file in object directory.
290 * Makefile: Don't allow inlining when compiling tst-cancel.c.
291 Pass $(objpfx) to tst-cancel.
293 2001-04-11 David S. Miller <davem@redhat.com>
295 * sysdeps/sparc/sparc32/pt-machine.h (stack_pointer): Advance
296 up closer to user local variables so that new cleanup heuristics work.
297 * sysdeps/sparc/sparc64/pt-machine.h (stack_pointer): Likewise.
299 2001-04-11 Ulrich Drepper <drepper@redhat.com>
301 * cancel.c (_pthread_cleanup_push): Catch invalid __prev buffer
303 (_pthread_cleanup_push_defer): Likewise.
305 * tst-cancel.c (main): Fix loop printing cleanup output.
307 2001-04-10 kaz Kojima <kkojima@rr.iij4u.or.jp>
309 * sysdeps/sh/pspinlock.c (__pthread_spin_lock): Fix a reverse
311 (__pthread_spin_trylock): Likewise.
312 * sysdeps/sh/pt-machine.h (testandset): Likewise.
314 2001-04-10 Ulrich Drepper <drepper@redhat.com>
316 * join.c (pthread_exit): Move code to new function __pthread_do_exit
317 which takes an extra parameter with the current frame pointer.
318 Call new function with CURRENT_STACK_FRAME.
319 (__pthread_do_exit): New function. Call __pthread_perform_cleanup
320 with the new parameter.
321 (pthread_join): Call __pthread_do_exit instead of pthread_exit.
322 * cancel.c (__pthread_perform_cleanup): Takes extra parameter. Use
323 this parameter as the initial value the cleanup handler records are
324 compared against. No active cleanup handler record must have an
325 address lower than the previous one and the initial record must be
326 above (below on PA) the frame address passed in.
327 (pthread_setcancelstate): Call __pthread_do_exit instead of
329 (pthread_setcanceltype): Likewise.
330 (pthread_testcancel): Likewise.
331 (_pthread_cleanup_pop_restore): Likewise.
332 * condvar.c (pthread_cond_wait): Likewise.
333 (pthread_cond_timedwait_relative): Likewise.
334 * manager.c (pthread_start_thread): Likewise.
335 * oldsemaphore.c (__old_sem_wait): Likewise.
336 * pthread.c (pthread_handle_sigcancel): Likewise.
337 * semaphore.c (__new_sem_wait): Likewise.
338 (sem_timedwait): Likewise.
339 * ptlongjmp.c (pthread_cleanup_upto): Also use current stack frame
340 to limit the cleanup handlers which get run.
341 * internals.h: Add prototype for __pthread_do_exit. Adjust prototype
342 for __pthread_perform_cleanup.
344 * Makefile (tests): Add tst-cancel.
345 * tst-cancel.c: New file.
347 2001-04-08 Hans-Peter Nilsson <hp@axis.com>
349 * sysdeps/cris/pt-machine.h: New file.
350 * sysdeps/cris/pspinlock.c: New file.
352 2001-04-09 Hans-Peter Nilsson <hp@axis.com>
354 * shlib-versions: Add case for Linux on CRIS.
356 2001-03-26 Ulrich Drepper <drepper@redhat.com>
358 * attr.c (pthread_getattr_np): Correct computation of stack size
359 for machiens with register stack.
361 * Examples/ex17.c (main): Correct detection of failed mmap call.
363 2001-03-21 Jakub Jelinek <jakub@redhat.com>
365 * pthread.c (__pthread_initialize_manager): Fix a typo.
367 2001-03-21 Jakub Jelinek <jakub@redhat.com>
369 * attr.c (__pthread_attr_setstack): Fix alignment check.
370 (pthread_getattr_np): __stackaddr is top of stack, not bottom.
371 * Makefile (tests): Add ex17 test.
372 * Examples/ex17.c: New test.
374 2001-03-20 Ulrich Drepper <drepper@redhat.com>
376 * Makefile: Define -D_RPC_THREAD_SAFE_ for cancel.c.
377 * cancel.c (__pthread_perform_cleanup): Call __rpc_thread_destroy.
378 * sysdeps/pthread/bits/libc-tsd.h: Define _LIBC_TSD_KEY_VARS.
380 2001-03-18 Ulrich Drepper <drepper@redhat.com>
382 * Makefile: When generating DSO link with libc_nonshared.a.
384 2001-02-26 Jakub Jelinek <jakub@redhat.com>
386 * signals.c (pthread_sighandler): Use CALL_SIGHANDLER.
388 2001-02-23 Jakub Jelinek <jakub@redhat.com>
390 * internals.h (__pthread_init_max_stacksize): New prototype.
391 * attr.c (__pthread_attr_setstacksize): Call
392 __pthread_init_max_stacksize if not yet initialized.
393 * pthread.c (__pthread_init_max_stacksize): New function.
394 (__pthread_initialize_manager): Call it.
395 Patch by <dtc@cmucl.cons.org>.
397 2001-03-16 Ulrich Drepper <drepper@redhat.com>
399 * attr.c (pthread_getattr_np): Fix __stacksize computation for IA-64.
401 2001-03-13 Martin Schwidefsky <schwidefsky@de.ibm.com>
403 * shlib-versions: Add rule for Linux on 64 bit S/390.
404 * sysdeps/s390/s390-64/pt-machine.h: New file.
405 * sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c: New file.
407 2001-03-13 Martin Schwidefsky <schwidefsky@de.ibm.com>
409 * sysdeps/s390/pt-machine.h: Move to...
410 * sysdeps/s390/s390-32/pt-machine.h: ...here.
411 Add defines for FLOATING_STACK and ARCH_STACK_MAX_SIZE.
413 2001-03-15 Ulrich Drepper <drepper@redhat.com>
415 * Versions [libpthread] (GLIBC_2.2.3): Add pthread_getattr_np.
416 * attr.c: Implement pthread_getattr_np.
417 * sysdeps/pthread/pthread.h: Add prototype for pthread_getattr_np.
418 * internals.h (struct _pthread_descr_struct): Add p_inheritsched.
419 * manager.c (pthread_handle_create): Initialize p_inheritsched.
421 2001-03-09 Martin Schwidefsky <schwidefsky@de.ibm.com>
423 * sysdeps/unix/sysv/linux/s390/pt-initfini.c: Use 0x07 padding for
426 2001-02-20 Hans Boehm <hans_boehm@hp.com>
428 * manager.c (manager_mask): Removed static vesion. Now always local
429 to __pthread_manager().
430 (manager_mask_all): Removed completely.
431 (__pthread_manager): Remove manager_mask_all initialization.
432 (pthread_handle_create): Remove code to set and reset signal mask
433 around __clone2() calls.
435 2001-02-17 Jakub Jelinek <jakub@redhat.com>
437 * spinlock.c (__pthread_lock): Force lock->__status to be read from
438 memory on every spin.
440 2001-02-10 Andreas Jaeger <aj@suse.de>
442 * Makefile (extra-objs): New.
444 2001-02-09 Jakub Jelinek <jakub@redhat.com>
446 * sysdeps/pthread/pt-initfini.c (call_initialize_minimal): Add
447 __pthread_initialize_minimal prototype.
449 2001-02-08 kaz Kojima <kkojima@rr.iij4u.or.jp>
451 * sysdeps/unix/sysv/linux/sh/pt-initfini.c: New file.
453 2001-02-06 Martin Schwidefsky <schwidefsky@de.ibm.com>
455 * sysdeps/unix/sysv/linux/s390/pt-initfini.c: New file.
457 2001-02-06 Ulrich Drepper <drepper@redhat.com>
459 * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: First attempt to fix the
460 broken code. Patch by Jes Sorensen.
462 2001-02-06 Andreas Jaeger <aj@suse.de>
464 * sysdeps/pthread/pthread.h: Move __pthread_initialize from here
466 * internals.h: ...here.
468 2001-02-05 Jes Sorensen <jes@linuxcare.com>
470 * sysdeps/unix/sysv/linux/ia64/pt-initfini.c: New file.
472 2001-02-02 Ulrich Drepper <drepper@redhat.com>
474 * Versions: Remove __pthread_initialize_minimal.
476 2001-02-01 Ulrich Drepper <drepper@redhat.com>
478 * Makefile: Add rules to build crti.o and make it being used in
479 building libpthread.so.
480 * sysdeps/i386/Makefile: New file.
481 * sysdeps/pthread/pt-initfini.c: New file.
483 * pthread.c: Cleanups.
485 2001-01-28 Andreas Jaeger <aj@suse.de>
487 * oldsemaphore.c (__old_sem_init): Adjust for last change.
488 * sysdeps/pthread/bits/libc-lock.h: Likewise.
489 * spinlock.c: Likewise.
491 2001-01-28 Ulrich Drepper <drepper@redhat.com>
493 * sysdeps/pthread/bits/initspin.h: Make all names namespace clean.
494 * sysdeps/unix/sysv/linux/hppa/bits/initspin.h: Likewise.
495 * manager.c: Adjust for namespace cleanup in bits/initspin.h.
496 * pthread.c: Likewise.
497 * spinlock.h: Likewise.
498 * sysdeps/pthread/pthread.h: Likewise.
500 2001-01-26 Ulrich Drepper <drepper@redhat.com>
502 * sysdeps/pthread/bits/pthreadtypes.h: Define pthread_attr_t also
503 as struct __pthread_attr_s.
505 * semaphore.h (sem_t): Cleanup namespace, rename status and
508 2001-01-13 Jakub Jelinek <jakub@redhat.com>
510 * pthread.c (pthread_onexit_process): Clear
511 __pthread_manager_thread_bos after freeing it.
512 * Makefile (tests): Add ex16.
513 * Examples/ex16.c: New file.
515 2001-01-11 Jakub Jelinek <jakub@redhat.com>
517 * Makefile (CFLAGS-pthread.c): Pass -DHAVE_Z_NODELETE if ld supports
519 * pthread.c (pthread_exit_process): Rename to...
520 (pthread_onexit_process): ...this.
521 (pthread_atexit_process, pthread_atexit_retcode): New.
522 (pthread_initialize): Call __cxa_atexit instead of __cxa_on_exit
523 and only if HAVE_Z_NODELETE is not defined.
524 (__pthread_initialize_manager): Register pthread_atexit_retcode
527 2001-01-11 Ulrich Drepper <drepper@redhat.com>
529 * pthread.c (pthread_initialize): Use __cxs_on_exit not __cxa_atexit.
531 2001-01-11 Jakub Jelinek <jakub@redhat.com>
533 * Makefile (tests): Add ex15.
534 * Examples/ex15.c: New test.
536 2001-01-08 Ulrich Drepper <drepper@redhat.com>
538 * pthread.c (pthread_exit_process): Free memory allocated for
541 2000-12-31 Ulrich Drepper <drepper@redhat.com>
543 * manager.c (pthread_alloca_stack): Remove MAP_FIXED from mmap calls.
544 (pthread_free): Always unmap the stack. It's safe now that we don't
545 use MAP_FIXED to allocate stacks.
547 2000-12-31 Ulrich Drepper <drepper@redhat.com>
549 * sysdeps/powerpc/pspinlock.c: Don't include pt-machine.h here.
551 * manager.c (pthread_allocate_stack): Prepare for removal of MAP_FIXED.
553 2000-11-15 Wolfram Gloger <wg@malloc.de>
555 * manager.c (pthread_free): [!FLOATING_STACKS]: Only remap the
556 stack to PROT_NONE, don't unmap it, avoiding collisions with malloc.
558 2000-12-27 Andreas Jaeger <aj@suse.de>
560 * Examples/ex13.c: Make local functions static.
561 * ecmutex.c: Likewise.
562 * joinrace.c: Likewise.
563 * Examples/ex14.c: Likewise.
565 * Examples/ex2.c: Make local functions static; reformat.
566 * Examples/ex1.c: Likewise.
567 * Examples/ex4.c: Likewise.
568 * Examples/ex5.c: Likewise.
569 * Examples/ex7.c: Likewise.
571 * oldsemaphore.c: Add prototypes to shut up GCC.
572 * pt-machine.c: Likewise.
574 * weaks.c: Add prototype for pthread_exit.
576 * internals.h: Add some prototypes, format prototypes and add
578 Move __libc_waitpid prototype to include/sys/wait.h.
580 * rwlock.c: Include <bits/libc-lock.h> for prototypes.
582 * specific.c: Likewise.
583 * ptfork.c: Likewise.
585 * lockfile.c: Include internals.h to get prototypes.
586 * events.c: Likewise.
587 * sysdeps/alpha/pspinlock.c: Likewise.
588 * sysdeps/arm/pspinlock.c: Likewise.
589 * sysdeps/hppa/pspinlock.c: Likewise.
590 * sysdeps/i386/pspinlock.c: Likewise.
591 * sysdeps/ia64/pspinlock.c: Likewise.
592 * sysdeps/m68k/pspinlock.c: Likewise.
593 * sysdeps/mips/pspinlock.c: Likewise.
594 * sysdeps/powerpc/pspinlock.c: Likewise.
595 * sysdeps/s390/pspinlock.c: Likewise.
596 * sysdeps/sh/pspinlock.c: Likewise.
597 * sysdeps/sparc/sparc32/pspinlock.c: Likewise.
598 * sysdeps/sparc/sparc32/sparcv9/pspinlock.c: Likewise.
599 * sysdeps/sparc/sparc64/pspinlock.c: Likewise.
601 2000-12-27 Ulrich Drepper <drepper@redhat.com>
603 * attr.c (__pthread_attr_setstack): Fix setting of __stackaddr element.
604 (__pthread_attr_getstack): Return correct address.
605 Add warnings for using pthread_attr_getstackaddr and
606 pthread_attr_setstackaddr.
608 2000-12-26 Ulrich Drepper <drepper@redhat.com>
610 * Examples/ex6.c (test_thread): Make static.
611 * Examples/ex12.c (test_thread): Make static and add noreturn
614 2000-12-18 Jes Sorensen <jes@linuxcare.com>
616 * linuxthreads/sysdeps/ia64/pt-machine.h: __compare_and_swap
617 and compare_and_swap_with_release_semantics returns int not long.
619 2000-12-17 Andreas Jaeger <aj@suse.de>
621 * sysdeps/s390/pt-machine.h (testandset): Use long int as return
623 * sysdeps/arm/pt-machine.h (testandset): Likewise.
624 * sysdeps/hppa/pt-machine.h (testandset): Likewise.
625 * sysdeps/m68k/pt-machine.h (testandset): Likewise.
626 * sysdeps/sh/pt-machine.h (testandset): Likewise.
627 * sysdeps/sparc/sparc32/pt-machine.h (testandset): Likewise.
628 * sysdeps/sparc/sparc64/pt-machine.h (testandset): Likewise.
630 2000-12-17 Ulrich Drepper <drepper@redhat.com>
632 * sysdeps/i386/pt-machine.h (testandset): Adjust for prototype change.
633 * sysdeps/i386/i686/pt-machine.h (testandset): Likewise.
635 2000-12-17 Andreas Jaeger <aj@suse.de>
637 * internals.h: Add prototypes for testandset and
638 __compare_and_swap to shut up gcc warnings.
640 2000-12-06 Wolfram Gloger <wg@malloc.de>
642 * join.c (pthread_detach): Allow case where the thread has already
645 2000-12-05 Andreas Jaeger <aj@suse.de>
647 * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Don't set mips2.
648 * sysdeps/mips/pt-machine.h (testandset): Likewise.
649 (__compare_and_swap): Likewise.
650 Patches by Maciej W. Rozycki <macro@ds2.pg.gda.pl>.
652 2000-11-20 Jakub Jelinek <jakub@redhat.com>
654 * Examples/ex3.c (main): Cast int to long before casting to void *.
655 (search): Cast void * to long, not int.
656 * Examples/ex8.c (main, thread): Similarly.
657 * Examples/ex11.c (main): Similarly.
658 * Examples/ex14.c (worker, do_test): Similarly.
659 * ecmutex.c (worker, do_test): Similarly.
660 (nlocks): Cast to int.
662 2000-11-08 Bruce Mitchener <bruce@cubik.org>
664 * linuxthreads.texi: Add documentation for pthreads attributes
665 guardsize, stackaddr, stacksize, and stack. Fix typo in previous
666 patch. Document pthread_[sg]etconcurrency(). Mark
667 pthread_mutexattr_[sg]ettype() as POSIX rather than GNU.
669 2000-11-07 Ulrich Drepper <drepper@redhat.com>
671 * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_MESSAGE_PASSING):
673 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
674 Reported by Christopher Yeoh <cyeoh@linuxcare.com.au>.
676 2000-11-06 Ulrich Drepper <drepper@redhat.com>
678 * cancel.c (pthread_cancel): Always set p_canceled, even if we are
679 not doing it right now.
680 Reported by Kaz Kylheku <kaz@ashi.footprints.net>.
682 2000-10-30 Ulrich Drepper <drepper@redhat.com>
684 * Examples/ex4.c (main): Don't use exit() to avoid warning with
687 2000-10-29 Ulrich Drepper <drepper@redhat.com>
689 * attr.c (__pthread_attr_setguardsize): Don't round guardsize
690 here. Reported by Bruce Mitchener <bruce@cubik.org>.
692 * linuxthreads.texi: Changes terminology to 'type' from 'kind' when
693 discussing mutexes. (As per the Unix98 name for the API.)
694 Changes documentation for pthread_mutexattr_setkind_np() and
695 pthread_mutexattr_getkind_np() over to the Unix98 APIs for the
696 same: pthread_mutexattr_settype() and pthread_mutexattr_gettype().
697 Changes references to PTHREAD_MUTEXATTR_FAST_NP to
698 PTHREAD_MUTEXATTR_ADAPTIVE_NP.
699 Begins to introduce discussion of the ``timed'' mutex type. This
700 discussion is currently incomplete.
701 Patch by Bruce Mitchener <bruce@cubik.org>.
703 2000-10-26 Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
704 Yutaka Niibe <gniibe@chroot.org>
706 * sysdeps/sh/pt-machine.h (testandset): Since the operand of TAS.B
707 has restrictions, use register.
709 2000-10-23 Andreas Schwab <schwab@suse.de>
711 * Examples/ex14.c (TIMEOUT): Override default timeout.
713 2000-10-16 Ulrich Drepper <drepper@redhat.com>
715 * specific.c: Protect tsd array modification in thread data
716 structures by getting the thread lock in pthread_key_delete and
717 __pthread_destroy_specifics.
718 Patch by Wolfram Gloger <Wolfram.Gloger@dent.med.uni-muenchen.de>.
720 2000-10-12 Alan Modra <alan@linuxcare.com.au>
722 * sysdeps/pthread/bits/initspin.h: New file.
723 * spinlock.h: Move LOCK_INITIALIZER definition to <bits/initspin.h>.
724 (__pthread_init_lock): Initialize lock with LT_SPINLOCK_INIT.
725 (__pthread_alt_init_lock): Likewise.
726 (__pthread_alt_trylock): Release lock with LT_SPINLOCK_INIT.
728 2000-10-12 David Huggins-Daines <dhd@linuxcare.com>
730 * oldsemaphore.c (__old_sem_init): Release lock with
731 LT_SPINLOCK_INIT, not zero.
732 * spinlock.c (__pthread_unlock): Likewise.
733 (__pthread_alt_lock): Likewise.
734 (__pthread_alt_timedlock): Likewise.
735 (__pthread_alt_unlock): Likewise.
736 * sysdeps/pthread/bits/libc-lock.h: Initialize locks with
737 LT_SPINLOCK_INIT if it is non-zero. Likewise for init-once flags.
738 * sysdeps/pthread/pthread.h: Include bits/initspin.h. Use
739 LT_SPINLOCK_INIT do initialize spinlocks not 0.
741 2000-10-12 David Huggins-Daines <dhd@linuxcare.com>
743 * shlib-versions: Add version definitions for hppa-linux.
745 2000-10-12 Alan Modra <alan@linuxcare.com.au>
747 * sysdeps/hppa/pspinlock.c: New file.
748 * sysdeps/hppa/pt-machine.h: New file.
749 * sysdeps/unix/sysv/linux/hppa/bits/initspin.h: New file.
751 2000-10-05 Jakub Jelinek <jakub@redhat.com>
753 * mutex.c (__pthread_mutex_destroy): Correct test of
754 busy mutex for mutexes using alternate fastlocks.
755 Patch by dtc@cmucl.cons.org.
757 2000-09-28 Martin Schwidefsksy <schwidefsky@de.ibm.com>
759 * sysdeps/s390/pt-machine.h: Make %a0 the thread register.
761 2000-09-28 Ulrich Drepper <drepper@redhat.com>
763 * mutex.c (__pthread_mutex_unlock): For PTHREAD_MUTEX_RECURSIVE_NP
764 test for owner first.
765 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
767 * cancel.c (pthread_cancel): Don't do anything if cancelation is
770 2000-09-26 Ulrich Drepper <drepper@redhat.com>
772 * spinlock.h (__pthread_set_own_extricate_if): Optimize a bit.
773 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
775 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Remove
776 _POSIX_MONOTONIC_CLOCK.
778 * spinlock.h (__pthread_set_own_extricate_if): Add back locking
781 2000-09-20 Andreas Jaeger <aj@suse.de>
783 * pthread.c [!__ASSUME_REALTIME_SIGNALS]: Make inclusion of
784 "testrtsig.h" conditional.
786 2000-09-11 Ulrich Drepper <drepper@redhat.com>
788 * sysdeps/pthread/pthread.h: Declare pthread_attr_getstack and
789 pthread_attr_setstack.
790 * Versions [libpthread] (GLIBC_2.2): Export pthread_attr_getstack and
791 pthread_attr_setstack.
792 * attr.c (pthread_attr_getstack, pthread_attr_setstack): New functions.
794 2000-09-05 Ulrich Drepper <drepper@redhat.com>
796 * Examples/ex14.c: New file.
797 * Makefile (tests): Add ex14.
799 * mutex.c (__pthread_mutex_unlock): Correct test for already unlocked
800 mutex. Patch by dtc@cmucl.cons.org.
802 * ecmutex.c: New file.
803 * Makefile (tests): Add ecmutex.
805 2000-09-04 H.J. Lu <hjl@gnu.org>
807 * attr.c (__pthread_attr_setguardsize): Use page_roundup
808 instead of roundup to round up to the page size.
810 2000-09-03 Mark Kettenis <kettenis@gnu.org>
812 * manager.c (pthread_exited): Correctly report event as TD_REAP
813 instead of TD_DEATH. Fix comments.
815 2000-09-03 Ulrich Drepper <drepper@redhat.com>
817 * spinlock.h (testandset): Add cast to avoid warning.
818 Patch by Franz Sirl <Franz.Sirl-kernel@lauterbach.com>.
820 2000-09-02 Andreas Jaeger <aj@suse.de>
822 * sysdeps/pthread/timer_routines.c: Include stdlib.h for abort
825 2000-09-01 Ulrich Drepper <drepper@redhat.com>
827 * sysdeps/pthread/bits/stdio-lock.h (_IO_cleanup_region_start):
828 Fix typo in last patch (_mode -> _flags).
830 * sysdeps/pthread/bits/stdio-lock.h (_IO_cleanup_region_start):
831 Provide definition which respects _IO_USER_LOCK flag.
833 2000-08-30 Ulrich Drepper <drepper@redhat.com>
835 * manager.c (pthread_allocate_stack): Clear descriptor only if not
838 2000-08-25 Ulrich Drepper <drepper@redhat.com>
840 * Makefile: Add rules to build and run unload.
841 * unload.c: New file.
843 * pthread.c (pthread_exit_process): Move thread_self use inside `if'.
845 * sysdeps/pthread/pthread.h
846 (PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP): Defined.
847 (PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP: Defined.
849 2000-08-24 Andreas Jaeger <aj@suse.de>
851 * Examples/ex13.c: Include <string.h> for strerror prototype and
852 <stdlib.h> for abort prototype.
853 (pthr_cond_signal_mutex): Rewrite to silence GCC.
854 (thread_start): Remove unused variable err.
855 (main): Silence GCC warnings.
857 2000-08-22 Andreas Jaeger <aj@suse.de>
859 * Examples/ex13.c: New test by Kurt Garloff <garloff@suse.de>.
861 * Makefile (tests): Add ex13.
863 2000-08-20 Ulrich Drepper <drepper@redhat.com>
865 * semaphore.h: Add restrict where required by AGd4.
866 * sysdeps/pthread/pthread.h: Likewise.
867 * sysdeps/pthread/unix/sysv/linux/bits/sigthread.h: Likewise.
869 2000-08-15 Ulrich Drepper <drepper@redhat.com>
871 * Makefile (tests): Add ex12. Add rule to build it.
872 * Examples/ex12.c: New file.
874 2000-08-13 Ulrich Drepper <drepper@redhat.com>
876 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_SEMAPHORES
877 even though the implementation is not quite complete (but it reports
878 it). Define _POSIX_MESSAGE_PASSING to -1.
879 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
881 2000-08-12 Andreas Jaeger <aj@suse.de>
883 * sysdeps/mips/pt-machine.h (testandset): Add .set mips2 for
885 (__compare_and_swap): Likewise.
886 * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Likewise.
888 2000-08-10 Ulrich Drepper <drepper@redhat.com>
890 * pthread.c (__pthread_initial_thread): Initialize p_errnop and
891 p_h_errnop correctly and not to NULL.
893 2000-08-05 Ulrich Drepper <drepper@redhat.com>
895 * Banner: Bump version number to 0.9.
897 2000-08-04 Ulrich Drepper <drepper@redhat.com>
899 * Makefile (tests): Add tststack. Add rule to build the program.
900 * tststack.c: New file.
902 * internals.h: Declare __pthread_max_stacksize.
903 * pthread.c (__pthread_max_stacksize): New variable.
904 (__pthread_initialize_manager): Determine __pthread_initialize_manager
906 * manager.c (thread_segment): Return always NULL if FLOATING_STACKS.
907 (pthread_allocate_stack): Allow kernel to choose stack address if
908 FLOATING_STACKS. This also handles variable-sized stacks.
909 Always allocate stack and guardpage together. Use mprotect to
910 change guardpage access.
911 * sysdeps/i386/useldt.h: Define FLOATING_STACKS and
914 * attr.c (__pthread_attr_setstacksize): Also test value against
917 * manager.c (__pthread_nonstandard_stacks): Define only if
918 THREAD_SELF is not defined.
919 (pthread_allocate_stack): Always initialize gardaddr to a correct
921 (pthread_handle_create): Unmap thread with one call.
922 (pthread_free): Remove test for initial thread before removing stack.
923 Unmap stack with one call.
925 * pthread.c (__pthread_initial_thread): Initialize p_userstack to
926 1 to avoid removing the stack.
928 2000-07-27 Jes Sorensen <jes@linuxcare.com>
930 * sysdeps/ia64/pspinlock.c (__pthread_spin_lock): Add
931 load of spin lock to prime the cache before the atomic compare and
932 exchange operation (cmpxchg4). This avoids the spinning on the
933 cmpxchg4 instruction and reduces movement of the cache line back
934 and forth between the processors (explanation by Asis K. Mallick
935 from Intel). This basically makes the implementation operate the
936 same as the Linux kernel implementation.
938 * shlib-versions: Use GLIBC_2_2 for Linux/ia64.
939 * sysdeps/ia64/pspinlock.c: New file.
941 2000-08-03 Ulrich Drepper <drepper@redhat.com>
943 * pthread.c: Move definition of __pthread_set_own_extricate_if...
944 * spinlock.h: ...here. Remove locking.
945 * internals.h: Remove __pthread_set_own_extricate_if prototype.
947 * rwlock.c: Use THREAD_GETMEM And THREAD_SETMEM.
948 (rwlock_rd_extricate_func): Don't determine self, let
949 __pthread_lock do it.
950 (rwlock_wr_extricate_func): Likewise.
951 (rwlock_have_already): Optimize *pself handling a bit.
953 * mutex.c: Use __builtin_expect.
954 * pthread.c: Likewise.
956 2000-08-02 Andreas Jaeger <aj@suse.de>
958 * sysdeps/s390/pspinlock.c: New file.
959 * sysdeps/s390/pt-machine.h: New file.
960 Patches by Martin Schwidefsky <schwidefsky@de.ibm.com>.
962 2000-07-12 Maciej W. Rozycki <macro@ds2.pg.gda.pl>
964 * sysdeps/mips/pspinlock.c (__pthread_spin_lock): Implement for
966 * sysdeps/mips/pt-machine.h (testandset): Likewise.
968 2000-07-26 Andreas Jaeger <aj@suse.de>
970 * pthread.c: Initialize p_sem_avail.
972 2000-07-25 Ulrich Drepper <drepper@redhat.com>
974 * internals.h (struct __pthread_descr_struct): Add p_sem_avail.
975 * semaphore.c: Handle spurious wakeups.
977 * sysdeps/pthread/pthread.h: Add back PTHREAD_MUTX_FAST_NP as an alias
978 for PTHREAD_MUTEX_ADAPTIVE_NP for source code compatibility.
980 * pthread.c (__pthread_set_own_extricate): Use THREAD_GETMEM.
981 (__pthread_wait_for_restart): Likewise.
983 * condvar.c (pthread_cond_wait): Also check whether thread is
984 cancelable before aborting loop.
985 (pthread_cond_timedwait): Likewise.
987 * signals.c (pthread_sighandler): Remove special code to restrore
989 (pthread_sighandler_t): Likewise.
991 2000-07-25 Mark Kettenis <kettenis@gnu.org>
993 * internals.h (__RES_PTHREAD_INTERNAL): Remove define.
994 * pthread.c: Include <resolv.h>.
995 (_res): Undefine. Add extern declaration.
997 2000-07-24 Ulrich Drepper <drepper@redhat.com>
999 * pthread.c (__pthread_initial_thread): Update initializer.
1000 (__pthread_manager_thread): Likewise.
1001 (pthread_initialize): Move setrlimit call to...
1002 (__pthread_initialize_manager): ...here.
1003 (__pthread_reset_main_thread): Reset also soft limit on stack size.
1005 * condvar.c: Handle spurious wakeups. [PR libc/1749].
1006 * internals.h (struct _pthread_descr_struct): Add p_condvar_avail.
1008 2000-07-21 Ulrich Drepper <drepper@redhat.com>
1010 * spinlock.h: If IMPLEMENT_TAS_WITH_CAS is defined use
1011 __compare_and_swap to define testandset.
1012 * sysdeps/powerpc/pt-machine.h: Add volatile to asms.
1013 Define IMPLEMENT_TAS_WITH_CAS.
1015 2000-07-20 Ulrich Drepper <drepper@redhat.com>
1017 * Makefile: Pass -z nodelete to linker for libpthread.so
1018 generation if it understand this option.
1020 2000-07-18 Mark Kettenis <kettenis@gnu.org>
1022 * manager.c (pthread_handle_create): Remove initialization of
1023 new_thread->p_res._sock.
1025 2000-07-19 Kaz Kylheku <kaz@ashi.footprints.net>
1027 Bugfixes to the variant of the code for machines with no compare
1030 * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Wait
1031 node was not being properly enqueued, due to failing to update
1032 the lock->__status field.
1034 * spinlock.c (__pthread_alt_timedlock): The oldstatus variable was
1035 being set inappropriately, causing the suspend function to be called
1036 with a null self pointer and crash.
1038 2000-07-18 Ulrich Drepper <drepper@redhat.com>
1040 * spinlock.h (__pthread_alt_trylock): Fix code used if no
1041 compare&swap is available.
1043 * spinlock.h (__pthread_trylock): Use __compare_and_swap, not
1046 * pthread.c (pthread_initialize): Don't use sysconf to determine
1047 whether the machine has more than one processor.
1049 * spinlock.c (__pthread_alt_timedlock): Add back one of the
1050 removed thread_self calls.
1052 2000-07-18 Kaz Kylheku <kaz@ashi.footprints.net>
1054 * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Changed
1055 __compare_and_swap to compare_and_swap in code which assumes
1056 compare swap is available.
1058 2000-07-18 Kaz Kylheku <kaz@ashi.footprints.net>
1060 * spinlock.c (__pthread_alt_lock, __pthread_alt_timedlock): Fixed
1061 bug whereby thr field of waitnode structure would not be correctly
1062 set unless a null self pointer is passed to the functions.
1063 Eliminated redundant calls to thread_self().
1065 2000-07-18 Jakub Jelinek <jakub@redhat.com>
1067 * pthread.c (__pthread_initialize_manager): Lock
1068 __pthread_manager_thread.p_lock before calling clone.
1070 2000-05-05 H.J. Lu <hjl@gnu.org>
1072 * sysdeps/ia64/pt-machine.h (__compare_and_swap): Change it to
1073 have acquire semantics.
1074 (__compare_and_swap_with_release_semantics): New inline
1076 (HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS): New macro.
1078 2000-01-28 Hans Boehm <hboehm@exch.hpl.hp.com>
1080 * manager.c: Fix the problem with signals at startup.
1081 Change the way that thread stacks are allocated on IA64.
1082 Clean up some of the guard page allocation stuff.
1084 1999-12-19 H.J. Lu <hjl@gnu.org>
1086 * internals.h (page_roundup): New.
1087 * attr.c (__pthread_attr_setguardsize); Use page_roundup
1089 * manager.c (pthread_allocate_stack): Make sure guardaddr is
1090 page aligned with page_roundup if NEED_SEPARATE_REGISTER_STACK
1093 1999-12-17 Hans Boehm <hboehm@exch.hpl.hp.com>
1095 * manager.c (pthread_allocate_stack): Unmap the stack top
1096 if failed to map the stack bottom.
1098 (pthread_free): Fix the guard page.
1100 * pthread.c (pthread_initialize): Set rlimit correctly for
1101 NEED_SEPARATE_REGISTER_STACK.
1103 1999-12-16 H.J. Lu <hjl@gnu.org>
1105 * pthread.c (__pthread_initialize_manager): Pass
1106 __pthread_manager_thread_bos instead of
1107 __pthread_manager_thread_tos to __clone2.
1109 1999-12-16 H.J. Lu <hjl@gnu.org>
1111 * manager.c (pthread_allocate_stack): Correct the calculation
1112 of "new_thread_bottom". Remove MAP_GROWSDOWN from mmap for
1115 1999-12-13 H.J. Lu <hjl@gnu.org>
1117 * sysdeps/ia64/pt-machine.h (__compare_and_swap): Added a stop
1118 bit after setting ar.ccv.
1120 1999-12-12 H.J. Lu <hjl@gnu.org>
1122 * manager.c (pthread_allocate_stack): Make the starting
1123 address of the stack bottom page aligned. FIXME: it may
1124 need changes in other places.
1125 (pthread_handle_create): Likewise.
1127 1999-12-11 Hans Boehm <hboehm@exch.hpl.hp.com>
1129 * manager.c (pthread_allocate_stack): Handle
1130 NEED_SEPARATE_REGISTER_STACK.
1131 (pthread_handle_create): Likewise.
1132 * pthread.c (__pthread_initialize_manager): Likewise.
1134 * sysdeps/ia64/pt-machine.h: Use r13 for thread pointer.
1136 1999-12-02 H.J. Lu <hjl@gnu.org>
1138 * sysdeps/ia64/pt-machine.h: New.
1140 2000-07-13 Ulrich Drepper <drepper@redhat.com>
1142 * wrapsyscall.c: Mark non-__ protected names as weak.
1145 2000-07-12 Bruno Haible <haible@clisp.cons.org>
1147 * Examples/ex8.c: Include <sys/wait.h>, not <wait.h>.
1149 2000-07-12 Ulrich Drepper <drepper@redhat.com>
1151 * spinlock.c: Fix code for TEST_FOR_COMPARE_AND_SWAP being defined.
1152 Add tests also to new alternative spinlock implementation.
1153 * spinlock.h: Likewise.
1154 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
1156 2000-07-06 Ulrich Drepper <drepper@redhat.com>
1158 * Version: Export __sigaction.
1159 * signals.c: Define __sigaction alias. Use __libc_sigaction instead
1161 * pthread.c: Use __libc_sigaction instead of __sigaction.
1163 * condvar.c: Implement pthread_condattr_getpshared and
1164 pthread_condattr_setpshared.
1165 * mutex.c: Implement pthread_mutexattr_getpshared and
1166 pthread_mutexattr_setpshared.
1167 * Versions: Export new functions.
1168 * sysdeps/pthread/pthread.h: Add prototypes for new functions.
1170 * rwlock.c (pthread_rwlockattr_init): Use PTHREAD_PROCESS_PRIVATE.
1171 (pthread_rwlockattr_setpshared): Fail if PTHREAD_PROCESS_PRIVATE
1174 2000-07-04 Greg McGary <greg@mcgary.org>
1176 * sysdeps/pthread/bits/libc-lock.h: Remove BP_SYM from
1177 pragmas. Include bp-sym.h only if _LIBC.
1179 2000-07-04 Ulrich Drepper <drepper@redhat.com>
1181 * spinlock.c (__pthread_unlock): Properly place write barrier.
1182 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
1184 2000-07-03 Ulrich Drepper <drepper@redhat.com>
1186 * spinlock.c: Replace fast spinlocks by adaptive spinlocks which are
1187 faster on SMP systems. No more emulation of compare&swap for adaptive
1189 * spinlock.h: Likewise.
1190 * sysdeps/pthread/pthread.h: Shuffle PTHREAD_MUTEX_* values around.
1191 Replace fast with adaptive mutex.
1192 * mutex.c: Rewrite for replacement of fast by adaptive mutex.
1193 * condvar.c: Likewise.
1194 * pthread.c: Define and initialize __pthread_smp_kernel variable.
1195 * internals.h: Declare __pthread_smp_kernel.
1196 * sysdeps/pthread/bits/pthreadtypes.h: Update comment of
1197 _pthread_fastlock structure.
1198 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
1200 * pthread.c: Remove initialization to zero from global variables.
1202 2000-06-29 Jakub Jelinek <jakub@redhat.com>
1204 * shlib-versions: Make sparc64 GLIBC_2.2+ only.
1206 2000-06-28 Greg McGary <greg@mcgary.org>
1208 * weaks.c: Wrap BP_SYM () around weak extern declarations of
1209 pthread functions that have pointers in their return+arg signatures.
1211 2000-06-27 Greg McGary <greg@mcgary.org>
1213 * sysdeps/pthread/bits/libc-lock.h: Wrap BP_SYM () around weak
1214 extern declarations of pthread functions that have pointers in
1215 their return+arg signatures.
1217 2000-06-26 Ulrich Drepper <drepper@redhat.com>
1219 * Makefile (tests): Add ex11. Add rules to build it.
1220 * Examples/ex11.c: New file.
1221 * rwlock.c: Fix complete braindamaged previous try to implement
1224 * spinlock.c: Pretty print.
1226 2000-06-25 Ulrich Drepper <drepper@redhat.com>
1228 * Makefile (tests): Add ex10. Add rules to build it.
1229 * Versions [GLIBC_2.2] (libpthread): Add pthread_mutex_timedlock,
1230 pthread_rwlock_timedrdlock, and pthread_rwlock_timedwrlock.
1231 * condvar.c (pthread_cond_wait): Allow mutex of kind
1232 PTHREAD_MUTEX_TIMED_NP.
1233 (pthread_cond_timedwait_relative): Likewise.
1234 * mutex.c (__pthread_mutex_init): Default is PTHREAD_MUTEX_TIMED_NP.
1235 (__pthread_mutex_trylock): Use __pthread_alt_trylock for
1236 PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP.
1237 (__pthread_mutex_lock): Use __pthread_alt_lock for
1238 PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP.
1239 (__pthread_mutex_timedlock): New function.
1240 (__pthread_mutex_unlock): Use __pthread_alt_unlock for
1241 PTHREAD_MUTEX_ERRORCHECK_NP. Handle PTHREAD_MUTEX_TIMED_NP.
1242 (__pthread_mutexattr_init): Use PTHREAD_MUTEX_TIMED_NP.
1243 (__pthread_mutexattr_settype): Allow PTHREAD_MUTEX_TIMED_NP.
1244 * spinlock.c: Implement alternate fastlocks.
1245 * spinlock.h: Add prototypes.
1246 * Examples/ex10.c: New file.
1247 * sysdeps/pthread/pthread.h: Add prototypes for new functions.
1248 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
1250 * rwlock.c (__pthread_rwlock_rdlock): Optimize loop a bit.
1251 (__pthread_rwlock_timedrdlock): New function.
1252 (__pthread_rwlock_timedwrlock): New function.
1253 Use laternate fastlock function everywhere.
1255 2000-06-21 Andreas Jaeger <aj@suse.de>
1257 * sysdeps/pthread/timer_routines.c: Include <string.h> for memset
1260 * join.c: Include <stdlib.h> for exit prototype.
1262 2000-06-20 Ulrich Drepper <drepper@redhat.com>
1264 * sysdeps/i386/useldt.h: Include <stdlib.h>.
1266 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_BARRIERS.
1267 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
1269 * Makefile (libpthread-routines): Add barrier.
1270 (tests): Add ex9. Add rule to build ex9.
1271 * Versions: Export barrier functions.
1272 * barrier.c: New file.
1273 * Examples/ex9.c: New file.
1274 * sysdeps/pthread/pthread.h: Add barrier data types and declarations.
1275 * sysdeps/pthread/bits/pthreadtypes.h: Likewise.
1276 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
1278 2000-06-19 H.J. Lu <hjl@gnu.org>
1280 * spinlock.h (HAS_COMPARE_AND_SWAP): Defined if
1281 HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS is defined.
1282 (compare_and_swap_with_release_semantics): New. Default to
1283 compare_and_swap if HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS
1286 * spinlock.c (__pthread_unlock): Call
1287 compare_and_swap_with_release_semantics () instead of
1288 compare_and_swap ().
1290 2000-06-19 Ulrich Drepper <drepper@redhat.com>
1292 * sysdeps/pthread/timer_create.c: Use _set_errno instead of assigning
1294 * sysdeps/pthread/timer_delete.c: Likewise.
1295 * sysdeps/pthread/timer_getoverr.c: Likewise.
1296 * sysdeps/pthread/timer_gettime.c: Likewise.
1297 * sysdeps/pthread/timer_settime.c: Likewise.
1299 2000-06-13 Kaz Kylheku <kaz@ashi.footprints.net>
1301 Timer nodes are now reference counted, and can be marked
1302 as deleted. This allows for the safe release of the global mutex
1303 in the middle without losing the timer being operated on.
1305 * sysdeps/pthread/posix-timer.h (struct timer_node): The inuse
1306 member is now an enum with three values, so that an intermediate
1307 state can be represented (deleted but not free for reuse yet).
1308 New refcount member added.
1309 * sysdeps/pthread/timer_routines.c: Likewise.
1311 * sysdeps/pthread/posix-timer.h (timer_addref, timer_delref,
1312 timer_valid): New inline functions added.
1314 * sysdeps/pthread/timer_gettime.c (timer_gettime): Function
1315 restructured, recursive deadlock bug fixed.
1317 * sysdeps/pthread/timer_gettime.c (timer_gettime): Uses new
1318 timer_addref to ensure that timer won't be deleted while mutex is not
1319 held. Also uses timer_invalid to perform validation of timer handle.
1320 * sysdeps/pthread/timer_settime.c (timer_settime): Likewise.
1321 * sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Likewise.
1323 2000-06-14 Ulrich Drepper <drepper@redhat.com>
1325 * shlib-versions: Add entry for SH.
1326 Patch by Kaz Kojima <kkojima@rr.iij4u.or.jp>.
1328 2000-06-13 Kaz Kylheku <kaz@ashi.footprints.net>
1330 A few optimizations. Got rid of unnecessary wakeups of timer threads,
1331 tightened up some critical regions and micro-optimized some list
1334 * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer):
1335 Returns int value now to indicate whether timer was queued at head.
1336 * sysdeps/pthread/posix-timer.h: Likewise.
1337 * sysdeps/pthread/timer_settime.c (timer_settime): Takes advantage of
1338 new return value from __timer_thread_queue_timer to avoid waking
1339 up timer thread unnecessarily.
1341 * sysdeps/pthread/posix-timer.h (timer_id2ptr): No longer checks
1342 inuse flag, because this requires mutex to be held. Callers updated
1343 to do the check when they have the mutex.
1344 * sysdeps/pthread/timer_getoverr.c: Add check for inuse here.
1346 * sysdeps/pthread/timer_settime.c (timer_settime): Tighter critical
1347 regions: avoids making system calls while holding timer mutex, and
1348 a few computations were moved outside of the mutex as well.
1349 * sysdeps/pthread/timer_gettime.c (timer_gettime): Likewise.
1351 * sysdeps/pthread/posix-timer.h (list_unlink_ip): Function name changed
1352 to list_unlink_ip, meaning idempotent. Pointer manipulation
1353 changed to get better better code out of gcc.
1354 * sysdeps/pthread/timer_routines.c (list_unlink): Non-idempotent
1355 version of list_unlink added here.
1356 * sysdeps/pthread/timer_delete.c: Use appropriate list unlink
1357 function in all places: idempotent one for timers, non-idempotent
1358 one for thread nodes.
1359 * sysdeps/pthread/timer_settime: Likewise.
1360 * sysdeps/pthread/timer_routines.c: Likewise.
1362 2000-06-13 Ulrich Drepper <drepper@redhat.com>
1364 * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_TIMERS): Define.
1365 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
1367 * sysdeps/pthread/Makefile: Remove tests definition.
1369 2000-06-12 Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
1370 Yutaka Niibe <gniibe@chroot.org>
1372 * sysdeps/sh/pspinlock.c: New file.
1373 * sysdeps/sh/pt-machine.h: New file.
1375 2000-06-12 Ulrich Drepper <drepper@redhat.com>
1377 * Makefile (tests): Add joinrace.
1379 * Examples/ex6.c: Test return value of pthread_join.
1381 2000-06-11 Geoff Keating <geoffk@cygnus.com>
1383 * sysdeps/powerpc/pspinlock.c (__pthread_spin_lock): Implement.
1384 (__pthread_spin_trylock): Implement.
1385 (__pthread_spin_unlock): Implement.
1386 (__pthread_spin_init): Implement.
1387 (__pthread_spin_destroy): Implement.
1389 2000-06-10 Ulrich Drepper <drepper@redhat.com>
1391 * sysdeps/pthread/timer_routines.c (list_append): Little fix to
1392 really append the entry.
1394 2000-06-10 Andreas Jaeger <aj@suse.de>
1396 * lockfile.c (__fresetlockfiles): Remove unused variable fp.
1398 2000-06-10 Kaz Kylheku <kaz@ashi.footprints.net>
1400 * sysdeps/pthread/timer_create.c: Thread matching now done on
1401 clock type as well as thread attributes.
1402 There are individual global signal-delivering threads for
1403 different clock types.
1404 * sysdeps/pthread/posix-timer.h: Likewise.
1405 * sysdeps/pthread/timer_routines.c: Likewise.
1407 * sysdeps/pthread/timer_routines.c: Thread allocation and
1408 deallocation function now remembers to put thread on active
1409 list and remove from active list.
1410 Thus now the feature of binding multiple timers
1411 to a single thread actually works.
1413 2000-06-10 Ulrich Drepper <drepper@redhat.com>
1415 * pthread.c (__pthread_create_2_1): Optimize a bit.
1417 * internals.h (invalid_handle): Also test for p_terminated != 0.
1418 (nonexisting_handle): New function. Same as old invalid_handle.
1419 * join.c (pthread_join): Use nonexisting_handle instead of
1420 invalid_handle to test for acceptable thread handle.
1421 * manager.c (pthread_handle_free): Likewise.
1422 * joinrace.c: New file.
1423 Reported by Permaine Cheung <pcheung@cygnus.com>.
1425 2000-06-08 Ulrich Drepper <drepper@redhat.com>
1427 * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer):
1428 Correct handling of matching variable.
1430 * sysdeps/pthread/tst-timer.c (main): Rewrite initializers to
1433 * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer):
1434 Be prepared for empty timer list.
1436 * sysdeps/pthread/timer_create.c (timer_create): Correct names of
1437 CPUTIME clock ID. Add support for thread clocks.
1439 * sysdeps/pthread/posix-timer.h (timer_ptr2id): Operands in
1440 subtraction were switched.
1442 * sysdeps/pthread/timer_routines.c (init_module): Use
1443 THREAD_MAXNODES threads.
1445 * sysdeps/pthread/posix-timer.h (struct timer_node): Add creator_pid.
1446 * sysdeps/pthread/timer_create.c: Fill in creator_pid.
1447 * sysdeps/pthread/timer_routines.c (thread_expire_timer): Send signal
1448 with sigqueueinfo is this system call is available.
1450 * sysdeps/pthread/timer_create.c (timer_create): Allow
1451 CLOCK_CPUTIME if _POSIX_CPUTIME is defined.
1453 * sysdeps/pthread/Makefile: New file. Add rules to build timer
1455 * sysdeps/unix/sysv/linux/bits/local_lim.h: Add TIMER_MAX.
1457 2000-06-04 Kaz Kylheku <kaz@ashi.footprints.net>
1459 * sysdeps/pthread/posix-timer.h: New file.
1460 * sysdeps/pthread/timer_create.c: New file.
1461 * sysdeps/pthread/timer_delete.c: New file.
1462 * sysdeps/pthread/timer_getoverr.c: New file.
1463 * sysdeps/pthread/timer_gettime.c: New file.
1464 * sysdeps/pthread/timer_routines.c: New file.
1465 * sysdeps/pthread/timer_settime.c: New file.
1466 * sysdeps/pthread/tst-timer.c: New file.
1468 2000-06-08 Ulrich Drepper <drepper@redhat.com>
1470 * sysdeps/unix/sysv/linux/bits/local_lim.h: Remove OPEN_MAX and
1471 LINK_MAX definitions if necessary.
1473 2000-06-04 Kaz Kylheku <kaz@ashi.footprints.net>
1475 Added missing fork time handling of global libio lock.
1477 * lockfile.c (__fresetlockfiles): Now also resets the list lock,
1478 not just the individual stream locks. Rewritten to use new
1479 iterator interface provided by libio rather than accessing
1482 * lockfile.c (__flockfilelist, _funlockfilelist): New functions
1483 which lock and unlock the stream list using the new interface
1485 * internals.h: Likewise.
1487 * ptfork.c (__fork): Now calls __flockfilelist before fork,
1488 and __funlockfilelist in the parent after the fork.
1489 Child still calls __fresetlockfiles as before.
1491 * linuxthreads.texi: Now explains what happens to streams at
1492 fork time. Also whole new section on forking and thread added.
1493 Definition of pthread_atfork moved out of Miscellaneous Functions
1494 to this new section.
1496 2000-06-04 Jakub Jelinek <jakub@redhat.com>
1498 * sysdeps/sparc/sparc32/sparcv9/pspinlock.c (__pthread_spin_lock):
1499 Add missing register.
1500 * sysdeps/sparc/sparc64/pspinlock.c (__pthread_spin_lock): Likewise.
1502 2000-06-02 Jakub Jelinek <jakub@redhat.com>
1504 * sysdeps/sparc/sparc32/pspinlock.c: Implement spinlocks.
1505 * sysdeps/sparc/sparc32/sparcv9/pspinlock.c: New.
1506 * sysdeps/sparc/sparc64/pspinlock.c: Implement spinlocks.
1508 2000-05-31 Andreas Jaeger <aj@suse.de>
1510 * sysdeps/mips/pspinlock.c: Implement spinlocks.
1512 2000-05-28 Ulrich Drepper <drepper@redhat.com>
1514 * spinlock.c (__pthread_lock): Remove ASSERT.
1516 * Makefile (tests): Add ex8.
1517 * Examples/ex8.c: New file.
1519 2000-05-12 Kaz Kylheku <kaz@ashi.footprints.net>
1521 Bugfix: The pthread_atfork mechanism now takes care of its
1522 own internal mutex at fork time.
1524 * ptfork.c (__fork): Revised so that the mutex is held across
1525 the fork operation and while the handlers are called, and so that
1526 the child resets the mutex.
1528 * linuxthreads.texi: Updated pthread_atfork documentation to make
1529 it clear that fork and pthread_atfork can't be reentered from
1530 atfork handlers, that pthread_atfork and fork are mutually atomic,
1531 and that the handlers are inherited by the child process.
1533 2000-05-24 Ulrich Drepper <drepper@redhat.com>
1535 * Makefile (libpthread-routines): Add pspinlock.
1536 * cancel.c: Rename __pthread_spin_unlock back to __pthread_unlock.
1537 Use struct _pthread_fastlock instead of pthread_spinlock_t.
1538 * condvar.c: Likewise.
1539 * internals.h: Likewise.
1541 * manager.c: Likewise.
1542 * mutex.c: Likewise.
1543 * pthread.c: Likewise.
1544 * rwlock.c: Likewise.
1545 * semaphore.c: Likewise.
1546 * signals.c: Likewise.
1547 * spinlock.h: Likewise.
1548 * spinlock.c: Likewise. Remove pthread_spin_lock functions.
1549 * sysdeps/alpha/pspinlock.c: New file.
1550 * sysdeps/arm/pspinlock.c: New file.
1551 * sysdeps/i386/pspinlock.c: New file.
1552 * sysdeps/m68k/pspinlock.c: New file.
1553 * sysdeps/mips/pspinlock.c: New file.
1554 * sysdeps/powerpc/pspinlock.c: New file.
1555 * sysdeps/sparc/sparc32/pspinlock.c: New file.
1556 * sysdeps/sparc/sparc64/pspinlock.c: New file.
1557 * sysdeps/pthread/bits/pthreadtypes.h: Remove pthread_spinlock_t
1558 back to _pthread_fastlock. Define new pthread_spinlock_t.
1560 2000-05-24 Andreas Jaeger <aj@suse.de>
1562 * sysdeps/i386/i686/pt-machine.h: Only use LDT on newer kernels.
1564 2000-05-21 Jakub Jelinek <jakub@redhat.com>
1566 * manager.c (pthread_handle_create): Initialize p_res._sock to -1.
1568 2000-05-13 Jakub Jelinek <jakub@redhat.com>
1570 * internals.h (__RES_PTHREAD_INTERNAL): Define.
1572 2000-05-06 Kaz Kylheku <kaz@ashi.footprints.net>
1574 * mutex.c (pthread_once): IN_PROGRESS state of pthread_once_t
1575 object state is represented with additional bits which distinguish
1576 whether that state was set up in the current process, or
1577 in an ancestor process. If that state was set in an ancestor,
1578 it means that a fork happened while thread was executing the init
1579 function. In that case, the state is reset to NEVER.
1580 * mutex.c (__pthread_once_fork_prepare): New function.
1581 (__pthread_once_fork_child): Likewise
1582 (__pthread_once_fork_parent): Likewise
1583 (__pthread_reset_pthread_once): Removed.
1584 * ptfork.c (__fork): Call new handlers in mutex.c.
1585 * internals.h: Declarations of new mutex.c functions added.
1586 Declaration of removed function deleted.
1587 * linuxthreads.texi: Updated documentation about pthread_once
1588 to clarify what happens under cancellation and forking.
1590 2000-05-06 Kaz Kylheku <kaz@ashi.footprints.net>
1592 * internals.h: New thread manager request type, REQ_KICK.
1593 * join.c (pthread_exit): main thread now calls exit() instead
1594 of _exit() in order to proper process cleanup.
1595 * manager.c (__pthread_manager): Do not terminate manager
1596 after unblocking main thread; wait for main thread's
1597 REQ_PROCESS_EXIT request instead.
1598 Also, added REQ_KICK case to handle new request; this just does
1600 * manager.c (pthread_exited): Do not terminate manager after
1601 unblocking main thread.
1602 * manager.c (__pthread_manager_sighandler): If the main thread
1603 is waiting for all other threads to die, send a REQ_KICK into
1604 the thread manager request pipe to get it to clean out the threads
1605 and unblock the main thread as soon as possible. This fixes
1606 the 2000 millisecond hang on shutdown bug.
1607 * Examples/ex7.c: New file, tests shutdown behavior when all threads
1608 including the main one call pthread_exit(), or implicitly do so.
1609 * Makefile (tests): Add ex7.
1611 2000-05-05 Andreas Jaeger <aj@suse.de>
1613 * sysdeps/unix/sysv/linux/i386/getcpuclockid.c
1614 (pthread_getcpuclockid): Correct test for ourselves.
1616 2000-05-05 Ulrich Drepper <drepper@redhat.com>
1618 * internals.h (struct _pthread_descr_struct): Reorganization.
1619 Allocate room for 16 pointers at head of the structure for future
1620 thread-local data handling. Move p_self member in this area.
1621 * manager.c (pthread_handle_create): Adjust use of p_self.
1622 * sysdeps/i386/useldt.h (THREAD_SELF): Likewise.
1623 * pthread.c (__pthread_initial_thread): Adjust initialization.
1624 (__pthread_manager_thread): Likewise.
1626 2000-04-29 Bruno Haible <haible@clisp.cons.org>
1628 * join.c (pthread_exit): Use THREAD_GETMEM_NC instead of THREAD_GETMEM
1629 for eventmask larger than 1 word.
1631 2000-04-27 Ulrich Drepper <drepper@redhat.com>
1633 * Versions [libpthread] (GLIBC_2.2): Add __pthread_initialize_minimal.
1634 * pthread.c (__pthread_initialize_minimal): New function. Perform
1635 minimal initialization.
1636 (pthread_initialize): Remove this code here.
1637 * sysdeps/i386/i686/pt-machine.h: Include "../useldt.h" again. We
1638 are working around the problem in glibc.
1640 2000-04-25 Ulrich Drepper <drepper@redhat.com>
1642 * sysdeps/i386/i686/pt-machine.h: Do not use "../useldt.h" for
1643 now. First gcc must be fixed (more concrete: libgcc).
1645 2000-04-24 Ulrich Drepper <drepper@redhat.com>
1647 * pthread.c: Remove special treatement for interrupt handlers on x86.
1648 * manager.c (pthread_free): Use FREE_THREAD not FREE_THREAD_SELF.
1649 * sysdeps/i386/useldt.h: Use "q" constraint instead of "r" where
1651 * sysdeps/i386/i686/pt-machine.h: Include "../useldt.h".
1653 2000-04-24 Mark Kettenis <kettenis@gnu.org>
1655 * join.c (pthread_exit): Set p_terminated after reporting the
1656 termination event instead of before.
1658 2000-04-20 Jakub Jelinek <jakub@redhat.com>
1660 * sysdeps/pthread/bits/libc-lock.h: Only declare __pthread_rwlock_*
1663 2000-04-18 Andreas Jaeger <aj@suse.de>
1665 * Versions: Use ld instead of ld.so.
1667 2000-04-18 Jakub Jelinek <jakub@redhat.com>
1669 * sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h (struct sigcontext):
1670 Remove the typedef keyword.
1672 2000-04-18 Jakub Jelinek <jakub@redhat.com>
1674 * sysdeps/sparc/sparc64/pt-machine.h (MEMORY_BARRIER): Use membar,
1676 (READ_MEMORY_BARRIER): Define.
1677 * spinlock.c (__pthread_spin_unlock): Use READ_MEMORY_BARRIER, not
1679 * internals.h (READ_MEMORY_BARRIER): Define if not defined in sysdep
1682 2000-04-17 Ulrich Drepper <drepper@redhat.com>
1684 * sysdeps/unix/sysv/linux/i386/getcpuclockid.c
1685 (pthread_getcpuclockid): Don't compare thread_id with thread_self,
1686 use thread_handle().
1688 2000-04-16 Ulrich Drepper <drepper@redhat.com>
1690 * condvar.c (pthread_cond_timedwait_relative): Don't test for owner
1691 if fast mutex is used. Don't initialize `already_canceled' twice.
1692 Correctly test for return value of timedsuspend.
1694 * pthread.c: Correct long-time braino. We never set SA_SIGINFO and
1695 therefore don't need the _rt versions of the signal handlers.
1697 2000-04-15 Ulrich Drepper <drepper@redhat.com>
1699 * pthread.c (pthread_yield): New function.
1700 * sysdeps/pthread/pthread.h (pthread_yield): Add prototype.
1701 * Versions [libpthread] (GLIBC_2.2): Add pthread_yield.
1702 * internals.h: Declare __pthread_yield.
1704 * pthread.c (pthread_initialize): Avoid a bit more code if
1705 realtime signals are known to exist.
1707 * pthread.c: Is __ASSUME_REALTIME_SIGNALS then avoid generating code
1708 to dynamically detect RT signals and avoid generating compatibility
1709 functions with old kernel.
1710 * restart.h (restart) [__ASSUME_REALTIME_SIGNALS]: Use
1711 __pthread_restart_new directly.
1712 (suspend) [__ASSUME_REALTIME_SIGNALS]: Use
1713 __pthread_wait_for_restart_signal directly.
1714 (timedsuspend) [__ASSUME_REALTIME_SIGNALS]: Use
1715 __pthread_timedsuspend_new directly.
1717 2000-04-15 Ulrich Drepper <drepper@redhat.com>
1719 * condvar.c: Remove all the special code to handle cond_timedwait.
1720 Use timedsuspend instead.
1721 * internals.h: Declare __pthread_timedsuspend_old,
1722 __pthread_timedsuspend_new, and __pthread_timedsuspend.
1723 Remove declaration of __pthread_init_condvar.
1724 * pthread.c: Define __pthread_timedsuspend variable.
1725 (__pthread_timedsuspend_old): New function. Timed suspension
1726 implementation for old Linux kernels.
1727 (__pthread_timedsuspend_new): New function. Timed suspension
1728 implementation for new Linux kernels.
1729 * restart.h (timedsuspend): New function. Call appropriate
1730 suspension function through __pthread_timedsuspend.
1731 * semaphore.c (sem_timedwait): Use timedsuspend, don't duplicate
1733 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
1735 * internals.h (WRITE_MEMORY_BARRIER): Define as MEMORY_BARRIER if
1737 * spinlock.c: Use WRITE_MEMORY_BARRIER instead of MEMORY_BARRIER
1739 * sysdeps/alpha/pt-machine.h: Define WRITE_MEMORY_BARRIER.
1740 * sysdeps/sparc/sparc64/pt-machine.h: Likewise.
1742 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _POSIX_SPAWN.
1743 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
1745 2000-04-14 Andreas Jaeger <aj@suse.de>
1747 * weaks.c: Fix typo.
1749 * shlib-versions (mips.*-.*-linux.*): Support only GLIBC 2.0 and
1750 2.2 for linuxthreads.
1752 2000-04-13 Ulrich Drepper <drepper@redhat.com>
1754 * sysdeps/unix/sysv/linux/i386/getcpuclockid.c
1755 (pthread_getcpuclockid): Fix typo.
1757 2000-04-12 Ulrich Drepper <drepper@redhat.com>
1759 * Makefile (libpthread-routines): Add getcpuclockid.
1760 * Versions [libpthread] (GLIBC_2.2): Add pthread_getcpuclockid.
1761 * sysdeps/pthread/getcpuclockid.c: New file.
1762 * sysdeps/unix/sysv/linux/i386/getcpuclockid.c: New file.
1763 * sysdeps/pthread/pthread.h: Add prototype for pthread_getcpuclockid.
1765 * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_SPIN_LOCKS):
1767 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.
1769 * sysdeps/pthread/pthread.h: Add prototypes for pthread_spin_init,
1770 pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock,
1771 and pthread_spin_unlock.
1772 * sysdeps/pthread/bits/pthreadtypes.h: Change struct _pthread_fastlock
1773 into pthread_spinlock_t. Change all uses.
1774 * spinlock.c: Implement pthread_spin_lock.
1775 Rename __pthread_unlock to __pthread_spin_unlock and define weak
1776 alias for real name.
1777 Define pthread_spin_trylock, pthread_spin_init, and
1778 pthread_spin_destroy.
1779 Change all uses of _pthread_fastlock to pthread_spinlock_t.
1780 * spinlock.h: Rename __pthread_unlock to __pthread_spin_unlock.
1781 Change all uses of _pthread_fastlock to pthread_spinlock_t.
1782 * Versions [libpthread] (GLIBC_2.2): Add pthread_spin_init,
1783 pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock,
1784 and pthread_spin_unlock.
1785 * cancel.c: Use __pthread_spin_unlock instead of __pthread_unlock.
1786 Change all uses of _pthread_fastlock to pthread_spinlock_t.
1787 * condvar.c: Likewise.
1788 * internals.h: Likewise.
1790 * manager.c: Likewise.
1791 * mutex.c: Likewise.
1792 * pthread.c: Likewise.
1793 * rwlock.c: Likewise.
1794 * semaphore.c: Likewise.
1795 * signals.c: Likewise.
1797 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add various new POSIX
1799 * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: New file.
1801 2000-04-11 Ulrich Drepper <drepper@redhat.com>
1803 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add
1804 _POSIX_SHARED_MEMORY_OBJECTS.
1806 2000-04-11 Andreas Jaeger <aj@suse.de>
1808 * sysdeps/mips/pt-machine.h (MEMORY_BARRIER): Define.
1809 (__compare_and_swap): Mark as modifying memory.
1811 2000-04-11 Geoff Keating <geoffk@cygnus.com>
1813 * sysdeps/powerpc/pt-machine.h (MEMORY_BARRIER): Don't be
1815 (__compare_and_swap): Replace other 'sync' with MEMORY_BARRIER.
1816 Don't have the 'asm' __volatile__.
1818 2000-04-11 Ulrich Drepper <drepper@redhat.com>
1820 * internals.h: Define MEMORY_BARRIER as empty if not defined already.
1821 * spinlock.c (__pthread_lock): Add memory barriers.
1822 (__pthread_unlock): Likewise.
1823 * sysdeps/alpha/pt-machine.h (MEMORY_BARRIER): Define using mb
1825 (RELEASE): Not needed anymore.
1826 (__compare_and_swap): Mark asm as modifying memory.
1827 * sysdeps/powerpc/pt-machine.h (sync): Remove. Replace with definition
1829 (__compare_and_swap): Use MEMORY_BARRIER instead of sync.
1830 * sysdeps/sparc/sparc32/pt-machine.h (RELEASE): Not needed anymore.
1831 (MEMORY_BARRIER): Define using stbar.
1832 * sysdeps/sparc/sparc64/pt-machine.h (MEMORY_BARRIER): Define using
1834 (__compare_and_swap): Use MEMORY_BARRIER to ensure ordering.
1835 Patch by Xavier Leroy <Xavier.Leroy@inria.fr> based on comments by
1836 Mike Burrows <m3b@pa.dec.com>.
1838 2000-04-09 Ulrich Drepper <drepper@redhat.com>
1840 * signals.c (sigaction): Fix return value for the case SIG is one
1841 of the signals the implementation uses.
1842 Patch by Xavier.Leroy@inria.fr.
1844 2000-04-01 Andreas Jaeger <aj@suse.de>
1846 * attr.c: Use shlib-compat macros.
1847 * oldsemaphore.c: Likewise.
1848 * pthread.c: Likewise.
1849 * weaks.c: Likewise.
1851 2000-03-26 Ulrich Drepper <drepper@redhat.com>
1853 * semaphore.c (sem_timedwait): New function.
1854 Patch by Carl Mailloux <carlm@oricom.ca>.
1855 * semaphore.h: Declare sem_timedwait.
1856 * Versions [libpthread] (GLIBC_2.2): Add sem_timedwait.
1858 2000-03-26 Roland McGrath <roland@baalperazim.frob.com>
1860 * sysdeps/pthread/Makefile: File removed.
1862 2000-03-23 Ulrich Drepper <drepper@redhat.com>
1864 * mutex.c (__pthread_reset_pthread_once): Reset once_masterlock.
1865 * internals.h (__pthread_reset_pthread_once): Add prototype.
1866 * ptfork.c (__fork): Call __pthread_reset_pthread_once.
1868 * manager.c (pthread_handle_create): Store ID of new thread before
1871 2000-03-21 Ulrich Drepper <drepper@redhat.com>
1873 * attr.c: Use new macros from shlib-compat.h to define versions.
1874 * oldsemaphore.c: Likewise.
1875 * semaphore.c: Likewise.
1876 * weaks.c: Likewise.
1878 * pthread.c: Update for new SHLIB_COMPAT definition.
1880 * manager.c (__pthread_manager): Unmask debug signal.
1882 * pthread.c (pthread_initialize): Test for address of __dso_handle
1883 being NULL, not value. Use __on_exit, not on_exit.
1884 Patch by Andreas Jaeger <aj@suse.de>.
1886 * pthread.c: Use new macros from shlib-compat.h to define versions.
1888 2000-03-19 Ulrich Drepper <drepper@redhat.com>
1890 * pthread.c (pthread_initialize): Instead of on_exit use
1891 __cxa_atexit if __dso_label is available to allow unloading the
1892 libpthread shared library.
1894 2000-03-16 Ulrich Drepper <drepper@redhat.com>
1896 * condvar.c: Make tests for ownership of mutex less strict.
1898 2000-03-14 Ulrich Drepper <drepper@redhat.com>
1900 * condvar.c (pthread_cond_wait): Check whether mutex is owned by
1901 current thread and return error if not.
1902 (pthread_cond_timedwait_relative_old): Likewise.
1903 (pthread_cond_timedwait_relative_new): Likewise.
1905 * mutex.c (__pthread_once): Handle cancelled init function correctly.
1906 (pthread_once_cancelhandler): New function.
1907 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
1909 2000-03-14 Andreas Jaeger <aj@suse.de>
1911 * pthread.c (pthread_handle_sigcancel_rt): GS has been renamed to
1913 (pthread_handle_sigrestart_rt): Likewise.
1914 * signals.c (pthread_sighandler_rt): Likewise.
1916 2000-03-02 Andreas Jaeger <aj@suse.de>
1918 * sysdeps/pthread/bits/libc-lock.h: Fix typo.
1919 Reported by Sean Chen <sean.chen@turbolinux.com>.
1921 2000-02-28 Andreas Jaeger <aj@suse.de>
1923 * rwlock.c: Fix typo.
1925 2000-02-27 Ulrich Drepper <drepper@redhat.com>
1927 * rwlock.c: Define __* variants of the functions and make old names
1929 * Versions [GLIBC_2.2]: Export the __pthread_rwlock_* functions.
1930 * sysdeps/pthread/bits/libc-lock.h: Define __libc_rwlock_* macros.
1932 2000-02-25 Andreas Jaeger <aj@suse.de>
1934 * Versions: Export pread, __pread64, pread64, pwrite, __pwrite64,
1935 pwrite64, lseek64, open64, and __open64 with version 2.2.
1937 2000-02-22 Ulrich Drepper <drepper@redhat.com>
1939 * semaphore.h (SEM_FAILED): Use 0 not NULL.
1941 2000-02-14 Ulrich Drepper <drepper@redhat.com>
1943 * condvar.c (pthread_cond_timedwait_relative_old): Tight loop with
1944 nanosleep does not work either. Get absolute time inside the
1946 (pthread_cond_timedwait_relative_new): Likewise.
1947 Patch by Kaz Kylheku <kaz@ashi.footprints.net>.
1949 2000-02-13 Andreas Jaeger <aj@suse.de>
1951 * condvar.c (pthread_cond_timedwait_relative_new): Fix last patch.
1952 (pthread_cond_timedwait_relative_old): Likewise.
1954 2000-02-13 Ulrich Drepper <drepper@redhat.com>
1956 * condvar.c (pthread_cond_timedwait_relative_old): Undo last patch
1957 but keep the code around. A bug in the kernel prevent us from
1959 (pthread_cond_timedwait_relative_new): Likewise.
1960 (PR libc/1597 and libc/1598).
1962 2000-02-01 Kaz Kylheku <kaz@ashi.footprints.net>
1964 * condvar.c (pthread_cond_timedwait_relative_old): Do tight
1965 loop around nanosleep calls instead of around most of the function
1966 (pthread_cond_timedwait_relative_new): Likewise.
1967 body. Got rid of backwards goto and one local.
1969 2000-01-31 Ulrich Drepper <drepper@redhat.com>
1971 * condvar.c (pthread_cond_timedwait_relative_old): Recompute time
1972 before every nanosleep call to account for time spent in the rest
1974 (pthread_cond_timedwait_relative_new): Likewise.
1975 Patch by khendricks@ivey.uwo.ca (PR libc/1564).
1977 2000-01-29 Ulrich Drepper <drepper@redhat.com>
1979 * condvar.c (pthread_cond_timedwait_relative_old): Get remaining time
1980 from nanosleep call so that in case we restart we only wait for the
1982 (pthread_cond_timedwait_relative_new): Likewise.
1983 Patch by khendricks@ivey.uwo.ca (PR libc/1561).
1985 2000-01-18 Ulrich Drepper <drepper@cygnus.com>
1987 * manager.c (pthread_allocate_stack): Compute guard page address
1988 correctly. Patch by HJ Lu.
1990 * sysdeps/pthread/pthread.h: Define
1991 PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP.
1993 2000-01-16 Ulrich Drepper <drepper@cygnus.com>
1995 * rwlock.c (pthread_rwlock_unlock): Correct one more problem with
1996 preference handling.
1997 (pthread_rwlockattr_setkind_np): Allow
1998 PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP.
1999 Patches by Kaz Kylheku <kaz@ashi.footprints.net>.
2001 2000-01-12 Ulrich Drepper <drepper@cygnus.com>
2003 * internals.h (pthread_readlock_info): New structure.
2004 (_pthread_descr_struct): Add p_readlock_list, p_readlock_free, and
2005 p_untracked_readlock_count.
2006 * pthread.c (__pthread_initial_thread, pthread_manager_thread):
2007 Add initializers for new fields.
2008 * manager.c (pthread_free): Free read/write lock lists.
2009 * queue.h (queue_is_empty): New function.
2010 * rwlock.c: Implement requirements about when readers should get
2012 * sysdeps/pthread/pthread.h
2013 (PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP): New definition.
2014 * sysdeps/pthread/bits/pthreadtypes.h (struct _pthread_rwlock_t):
2015 Define this name as well.
2016 Patches by Kaz Kylheku <kaz@ashi.footprints.net>.
2018 2000-01-05 Ulrich Drepper <drepper@cygnus.com>
2020 * pthread.c (__pthread_initial_thread, pthread_manager_thread):
2021 Adjust initializers for struct _pthread_descr_struct change.
2022 * internals.h (struct _pthread_descr_struct): Move new elements to
2025 2000-01-03 Kaz Kylheku <kaz@ashi.footprints.net>
2027 Redesigned how cancellation unblocks a thread from internal
2028 cancellation points (sem_wait, pthread_join,
2029 pthread_cond_{wait,timedwait}).
2030 Cancellation won't eat a signal in any of these functions
2031 (*required* by POSIX and Single Unix Spec!).
2032 * condvar.c: Spontaneous wakeup on pthread_cond_timedwait won't eat a
2033 simultaneous condition variable signal (not required by POSIX
2034 or Single Unix Spec, but nice).
2035 * spinlock.c: __pthread_lock queues back any received restarts
2036 that don't belong to it instead of assuming ownership of lock
2037 upon any restart; fastlock can no longer be acquired by two threads
2039 * restart.h: Restarts queue even on kernels that don't have
2040 queued real time signals (2.0, early 2.1), thanks to atomic counter,
2041 avoiding a rare race condition in pthread_cond_timedwait.
2043 1999-12-31 Andreas Jaeger <aj@suse.de>
2045 * internals.h: Remove duplicate prototype declarations.
2047 * weaks.c: Remove __THROW from prototypes since the file is not
2048 compiled by a C++ compiler.
2049 * internals.h: Likewise.
2051 1999-12-30 Andreas Jaeger <aj@suse.de>
2053 * sysdeps/pthread/pthread.h: Move internal functions to...
2054 * sysdeps/pthread/bits/libc-lock.h: ...here.
2056 1999-12-29 Andreas Jaeger <aj@suse.de>
2058 * sysdeps/pthread/pthread.h: Fix typos, reformat comments.
2060 1999-12-28 Ulrich Drepper <drepper@cygnus.com>
2062 * sysdeps/alpha/pt-machine.h: Move stack_pointer definition to the
2065 * manager.c (__pthread_start): Add one more cast to prevent
2066 warning on 64bit machines.
2068 1999-12-21 Ulrich Drepper <drepper@cygnus.com>
2070 * manager.c (pthread_handle_create): Set p_pid of new thread
2071 before calling the callback function to report a new thread.
2073 1999-12-20 Andreas Jaeger <aj@suse.de>
2075 * pthread.c (pthread_initialize): Move getrlimit call after
2078 1999-12-18 Ulrich Drepper <drepper@cygnus.com>
2080 * Versions: Export pread, __pread64, pread64, pwrite, __pwrite64,
2081 pwrite64, lseek64, open64, and __open64.
2082 * wrapsyscall.c: Define pread, __pread64, pread64, pwrite, __pwrite64,
2083 pwrite64, lseek64, open64, and __open64.
2085 * manager.c (pthread_allocate_stack): Correct computation of
2086 new_thread_bottom. Correct handling of stack size and when the
2087 rlimit method to guard for stack growth is used.
2088 * pthread.c (pthread_initialize): Stack limit must be STACK_SIZE
2089 minus one pagesize (not two).
2091 1999-12-03 Andreas Jaeger <aj@suse.de>
2093 * Versions: Add __res_state with version GLIBC_2.2.
2095 * errno.c (__res_state): New function to return thread specific
2098 * pthread.c (pthread_initialize): Initialize p_resp.
2099 (__pthread_reset_main_thread): Also set p_resp.
2101 * manager.c (pthread_handle_create): Initialize p_resp.
2103 * internals.h: Add thread specific resolver state.
2104 Based on patches by Adam D. Bradley <artdodge@cs.bu.edu>.
2106 1999-12-01 Ulrich Drepper <drepper@cygnus.com>
2108 * sysdeps/i386/pt-machine.h: Move stack_pointer definition to the
2110 * sysdeps/i386/i686/pt-machine.h: Likewise.
2111 Patches by Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>.
2113 1999-11-23 Ulrich Drepper <drepper@cygnus.com>
2115 * manager.c (pthread_start_thread_event): Initialize p_pid already
2118 1999-11-22 Ulrich Drepper <drepper@cygnus.com>
2120 * internals.h: Add prototype for __pthread_manager_event.
2121 * manager.c (__pthread_manager_event): New function.
2122 (pthread_start_thread_event): Correct computation of self.
2123 Use INIT_THREAD_SELF.
2124 * pthread.c (__pthread_manager_thread): Initialize p_lock.
2125 (__pthread_initialize_manager): Respect event flags also for creation
2126 of the manager thread.
2128 1999-11-08 Ulrich Drepper <drepper@cygnus.com>
2130 * pthread.c (__pthread_initialize_manager): Initialize
2131 __pthread_manager_thread.p_tid.
2133 1999-11-02 Ulrich Drepper <drepper@cygnus.com>
2135 * internals.h: Declare __pthread_last_event.
2136 * manager.c: Define __pthread_last_event.
2137 (pthread_handle_create): Set __pthread_last_event.
2138 (pthread_exited): Likewise.
2139 * join.c (pthread_exit): Likewise.
2141 * Makefile (libpthread-routines): Add events.
2142 * events.c: New file.
2143 * internals.h: Protect against multiple inclusion.
2144 Include thread_dbP.h header.
2145 (struct _pthread_descr_struct): Add new fields p_report_events and
2147 Declare event reporting functions.
2148 * join.c (pthread_exit): Signal event if this is wanted.
2149 * manager.c (__pthread_threads_events): New variable.
2150 (pthread_handle_create): Take new parameters with event information.
2151 Signal TD_CREATE event if wanted.
2152 (__pthread_manager): Adjust pthread_handle_create call.
2153 (pthread_start_thread_event): New function. Block until manager is
2154 finished and then call pthread_start_thread.
2155 (pthread_exited): Signal TD_REAP event if wanted.
2157 1999-10-26 Ulrich Drepper <drepper@cygnus.com>
2159 * restart.h (suspend_with_cancellation): Rewrite as a macro.
2161 * condvar.c (pthread_cond_timedwait_relative): Don't mark as inline.
2163 1999-10-25 Andreas Jaeger <aj@suse.de>
2165 * internals.h: Remove K&R compatibility.
2166 * no-tsd.c: Likewise.
2167 * semaphore.h: Likewise.
2168 * signals.c: Likewise.
2169 * sysdeps/pthread/bits/libc-tsd.h: Likewise.
2170 * sysdeps/unix/sysv/linux/bits/sigthread.h: Likewise.
2171 * weaks.c: Likewise.
2173 1999-10-21 Xavier Leroy <Xavier.Leroy@inria.fr>
2175 * pthread.c: For i386, wrap pthread_handle_sigrestart and
2176 pthread_handle_sigcancel with functions that restore %gs from the
2177 signal context. For each signal handling function, two wrappers
2178 are required, one for a non-RT signal and one for a RT signal.
2179 * signal.c: For i386, add code to restore %gs from the signal
2180 context in pthread_sighandler and pthread_sighandler_rt.
2182 1999-10-17 Ulrich Drepper <drepper@cygnus.com>
2184 * internals.h (PTHREAD_START_ARGS_INITIALIZER): Add cast.
2186 1999-10-14 Ulrich Drepper <drepper@cygnus.com>
2188 * pthread.c (__pthread_initial_thread): Pass argument to
2189 PTHREAD_START_ARGS_INITIALIZER.
2190 (__pthread_manager_thread): Likewise.
2192 * internals.h (PTHREAD_START_ARGS_INITIALIZER): Add parameter to
2193 initialize function.
2195 * manager.c (pthread_handle_create): Remove p_startfct initialization.
2197 * internals.h (_pthread_descr_struct): We don't need p_startfct field.
2199 1999-10-12 Ulrich Drepper <drepper@cygnus.com>
2201 * internals.h: Correct return types for __libc_read and __libc_write.
2203 1999-10-09 Andreas Jaeger <aj@suse.de>
2205 * internals.h: Add __new_sem_post to get prototype in
2206 manager.c; include semaphore.h for needed types.
2208 1999-10-08 Ulrich Drepper <drepper@cygnus.com>
2210 * manager.c (__pthread_manager) [REQ_POST]: Use __new_sem_post
2211 directly instead of calling sem_post which should not be necessary
2212 but is faster and might help in some case to work around problems.
2213 Patch by khendricks@ivey.uwo.ca [libc/1382].
2215 1999-10-08 Andreas Schwab <schwab@suse.de>
2217 * sysdeps/pthread/Subdirs: New file.
2220 1999-10-07 Ulrich Drepper <drepper@cygnus.com>
2222 * Implies: New file.
2223 * internals.h (struct _pthread_descr_struct): Add p_startfct.
2224 * manager.c (pthread_handle_create): Initialize p_startfct.
2225 * pthread.c: Define __linuxthread_pthread_sizeof_descr variable.
2227 1999-09-25 Ulrich Drepper <drepper@cygnus.com>
2229 * manager.c (__linuxthreads_pthread_threads_max): New variable.
2230 * specific.c (__linuxthreads_pthread_keys_max): New variable.
2231 (__linuxthreads_pthread_key_2ndlevel_size): New variable.
2233 * condvar.c (pthread_cond_timedwait_relative): Never return with
2234 EINTR. Patch by Andreas Schwab.
2236 1999-09-19 Ulrich Drepper <drepper@cygnus.com>
2238 * signals.c (sigaction): Correct last patch. Don't select
2239 pthread_sighandler_rt based on the signal number but instead of
2240 the SA_SIGINFO flag.
2242 1999-09-23 Ulrich Drepper <drepper@cygnus.com>
2244 * specific.c: Move definitions of struct pthread_key_struct and
2245 destr_function to ...
2246 * internals.h: ...here.
2248 1999-09-18 Ulrich Drepper <drepper@cygnus.com>
2250 * pthread.c (pthread_handle_sigrestart_rt): New function. Use
2251 this instead of pthread_handle_sigrestart if the signal is an RT
2254 * signals.c: Handle passing through of sighandler arguments also
2255 for real-time signals.
2257 1999-09-03 Andreas Schwab <schwab@suse.de>
2259 * ptfork.c (__fork): Renamed from fork and use __libc_fork. Add
2261 (__vfork): New function, alias vfork.
2262 * Versions: Export __fork, vfork, and __vfork in libpthread.
2264 1999-08-23 Andreas Schwab <schwab@suse.de>
2266 * signals.c (pthread_sighandler): Add SIGCONTEXT_EXTRA_ARGS to
2267 call to signal handler.
2269 1999-08-20 Ulrich Drepper <drepper@cygnus.com>
2271 * pthread.c (__pthread_reset_main_thread): Undo last change.
2272 (__pthread_kill_other_threads_np): Reset signal handlers for the
2273 signals we used in the thread implementation here.
2275 1999-08-19 Ulrich Drepper <drepper@cygnus.com>
2277 * pthread.c (__pthread_reset_main_thread): Reset signal handlers
2278 for the signals we used in the thread implementation [PR libc/1234].
2280 * Versions: Export __pthread_kill_other_threads_np from libpthread
2283 * signals.c: Pass sigcontext through wrapper to the user function.
2285 1999-08-01 Ulrich Drepper <drepper@cygnus.com>
2287 * Versions [ld.so] (GLIBC_2.0): Export __libc_internal_tsd_get and
2288 __libc_internal_tsd_set.
2290 1999-07-29 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2292 * manager.c: Remove inclusion of <linux/tasks.h> since it's not
2295 1999-07-16 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2297 * internals.h: Align _pthread_descr_struct to 32 bytes.
2298 Reported by Tim Hockin <thockin@cobaltnet.com>, close PR
2301 1999-07-09 Ulrich Drepper <drepper@cygnus.com>
2303 * oldsemaphore.c (sem_compare_and_swap): Fix use of compare and
2306 1999-07-09 Cristian Gafton <gafton@redhat.com>
2308 * Makefile (libpthread-routines): Add oldsemaphore routine.
2309 * Versions: Add sem_destroy, sem_getvalue, sem_init, sem_post,
2310 sem_trywait, and sem_wait to GLIBC_2.1.
2311 * oldsemaphore.c: New file.
2312 * semaphore.c: Add default_symbol_versions for the changed functions.
2313 (__new_sem_init): Rename from sem_init.
2314 (__new_sem_post): Rename from sem_post.
2315 (__new_sem_wait): Rename from sem_wait.
2316 (__new_sem_trywait): Rename from sem_trywait.
2317 (__new_sem_getvalue): Rename from sem_getvalue.
2318 (__new_sem_destroy): Rename from sem_destroy.
2320 1999-06-23 Robey Pointer <robey@netscape.com>
2322 * internals.h: Added p_nextlock entry to separate queueing for a
2323 lock from queueing for a CV (sometimes a thread queues on a lock
2324 to serialize removing itself from a CV queue).
2325 * pthread.c: Added p_nextlock to initializers.
2326 * spinlock.c: Changed to use p_nextlock instead of p_nextwaiting.
2328 1999-07-09 Ulrich Drepper <drepper@cygnus.com>
2330 * manager.c (pthread_handle_create): Free mmap region after stack
2331 if clone failed. Patch by Kaz Kylheku <kaz@ashi.FootPrints.net>.
2333 1999-05-23 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2335 * man/pthread_cond_init.man: Correct example.
2336 Reported by Tomas Berndtsson <tomas@nocrew.org>.
2338 * linuxthreads.texi (Condition Variables): Likewise.
2340 1999-05-18 Jakub Jelinek <jj@ultra.linux.cz>
2342 * sysdeps/sparc/sparc64/pt-machine.h (__compare_and_swap): Use
2343 casx not cas, also successful casx returns the old value in rd
2344 and not the new value.
2346 1999-05-16 Xavier Leroy <Xavier.Leroy@inria.fr>
2348 * manager.c: If pthread_create() is given a NULL attribute
2349 and the thread manager runs with a realtime policy, set the
2350 scheduling policy of the newly created thread back to SCHED_OTHER.
2351 * manager.c: If the PTHREAD_INHERIT_SCHED attribute is given,
2352 initialize the schedpolicy field of new_thread->p_start_args
2353 to that of the calling thread.
2355 1999-04-29 Ulrich Drepper <drepper@cygnus.com>
2357 * sysdeps/sparc/sparc64/pt-machine.h (__compare_and_swap): cas
2358 instruction does not allow memory element to use offset.
2360 1999-04-28 Ulrich Drepper <drepper@cygnus.com>
2362 * manager.c (pthread_allocate_stack): Optimize initialization of new
2365 * sysdeps/pthread/bits/libc-lock.h (__libc_lock_define_initialized):
2366 Don't use initializer since it is all zeroes.
2367 (__libc_once_define): Likewise.
2369 1999-04-16 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2371 * sysdeps/arm/Implies: Removed since cmpxchg/no-cmpxchg
2372 doesn't exist anymore.
2373 * sysdeps/i386/Implies: Likewise.
2374 * sysdeps/m68k/Implies: Likewise.
2375 * sysdeps/mips/Implies: Likewise.
2376 * sysdeps/powerpc/Implies: Likewise.
2377 * sysdeps/sparc/sparc32/Implies: Likewise.
2378 * sysdeps/sparc/sparc64/Implies: Likewise.
2380 1999-04-15 Ulrich Drepper <drepper@cygnus.com>
2382 * sysdeps/alpha/bits/semaphore.h: Removed.
2383 * sysdeps/powerpc/bits/semaphore.h: Removed.
2384 * sysdeps/pthread/cmpxchg/bits/semaphore.h: Removed.
2385 * sysdeps/pthread/no-cmpxchg/bits/semaphore.h: Removed.
2386 * Makefile (headers): Remove bits/semaphore.h.
2388 * semaphore.h: Define _pthread_descr if necessary.
2389 Don't include limits.h. Define SEM_VALUE_MAX directly.
2391 (sem_t): Protect element names with leading __.
2392 Add declarations for sem_close, sem_open, and sem_unlink.
2393 * semaphore.c: Adjust all functions for new element names.
2394 Define sem_close, sem_open, and sem_unlink.
2395 * Versions (libthread): Add sem_close, sem_open, and sem_unlink for
2397 * sysdeps/pthread/bits/pthreadtypes.h: Define _pthread_descr only if
2400 1999-03-16 H.J. Lu <hjl@gnu.org>
2402 * specific.c (pthread_key_delete): Check th->p_terminated to see
2403 if the thread is running.
2405 * Versions (__libc_internal_tsd_get, __libc_internal_tsd_set):
2406 Added to GLIBC_2.0 for libc.so.
2408 1999-02-12 H.J. Lu <hjl@gnu.org>
2410 * Versions (__libc_current_sigrtmin, __libc_current_sigrtmax,
2411 __libc_allocate_rtsig): Added to GLIBC_2.1.
2413 * internals.h (DEFAULT_SIG_RESTART): Removed.
2414 (DEFAULT_SIG_CANCEL): Removed.
2416 * pthread.c (init_rtsigs, __libc_current_sigrtmin,
2417 __libc_current_sigrtmax, __libc_allocate_rtsig): New functions.
2418 (__pthread_sig_restart, __pthread_sig_cancel,
2419 __pthread_sig_debug): Initialized.
2420 (pthread_initialize): Call init_rtsigs () to initialize
2423 1999-02-03 H.J. Lu <hjl@gnu.org>
2425 * manager.c (__pthread_manager): Do block __pthread_sig_debug.
2426 Don't restart the thread which sent REQ_DEBUG.
2427 (pthread_start_thread): Check if __pthread_sig_debug > 0
2430 * pthread.c (__pthread_initialize_manager): Suspend ourself
2431 after sending __pthread_sig_debug to gdb instead of
2432 __pthread_sig_cancel.
2434 1999-01-24 H.J. Lu <hjl@gnu.org>
2436 * manager.c (__pthread_manager): Delete __pthread_sig_debug
2437 from mask if __pthread_sig_debug > 0.
2438 (pthread_handle_create): Increment __pthread_handles_num.
2440 * manager.c (pthread_handle_create): Don't pass CLONE_PTRACE to clone.
2441 * pthread.c (__pthread_initialize_manager): Likewise.
2443 * pthread.c (pthread_initialize): Use __libc_allocate_rtsig (1)
2444 instead of __libc_allocate_rtsig (2).
2445 (__pthread_initialize_manager): Send __pthread_sig_debug to gdb
2446 instead of __pthread_sig_cancel.
2447 (pthread_handle_sigdebug): Fix comments.
2449 1999-01-21 Ulrich Drepper <drepper@cygnus.com>
2451 * manager.c (pthread_allocate_stack): Set
2452 __pthread_nonstandard_stacks if user-specified stack is used.
2454 1999-01-16 Ulrich Drepper <drepper@cygnus.com>
2456 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _LFS_ASYNCHRONOUS_IO,
2457 _LFS_LARGEFILE, _LFS64_LARGEFILE, and _LFS64_STDIO from Unix98.
2459 1999-01-07 Xavier Leroy <Xavier.Leroy@inria.fr>
2461 * pthread.c: Use a third signal __pthread_sig_debug distinct
2462 from __pthread_sig_cancel to notify gdb when a thread is
2464 * manager.c: Likewise.
2465 * internals.h: Likewise.
2466 * signals.c: The implementation of sigwait(s) assumed that
2467 all signals in s have signal handlers already attached.
2468 This is not required by the standard, so make it work
2469 also if some of the signals have no handlers.
2471 1999-01-05 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2473 * linuxthreads.texi: Remove pointers from first @node. Move old
2474 @node spec inside comment.
2476 1998-12-31 Ulrich Drepper <drepper@cygnus.com>
2478 * sysdeps/pthread/bits/stdio-lock.h: Define _IO_lock_lock and
2481 1998-12-29 Ulrich Drepper <drepper@cygnus.com>
2483 * semaphore.c (sem_trywait): Don't forget to unlock the semaphore
2484 lock. Patch by Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>.
2486 1998-12-21 Ulrich Drepper <drepper@cygnus.com>
2488 * manager.c: Threads now send __pthread_sig_cancel on termination.
2489 Change clone call and signal masks.
2490 * thread.c (pthread_handle_sigrestart): Remove special code for
2492 (pthread_handle_sigcancel): In manager thread call
2493 __pthread_manager_sighandler.
2494 * sysdeps/i386/pt-machine.h (__compare_and_swap): Add memory clobber.
2495 * sysdeps/i386/i686/pt-machine.h: Likewise.
2496 Patches by Xavier Leroy.
2498 1998-12-14 Ulrich Drepper <drepper@cygnus.com>
2500 * spinlock.c (__pthread_unlock): Don't crash if called for an
2501 untaken mutex. Reported by Ruslan V. Brushkoff <rus@Snif.Te.Net.UA>.
2503 * Examples/ex6.c: Unbuffer stdout and reduce sleep time to reduce
2506 1998-12-13 Ulrich Drepper <drepper@cygnus.com>
2508 * Examples/ex3.c: Wait until all threads are started before
2509 searching for the number to avoid race condition on very fast
2512 1998-12-08 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2514 * sysdeps/pthread/pthread.h: Remove __pthread_setcanceltype
2515 declaration since it's not needed.
2517 * sysdeps/pthread/pthread.h: Move internal functions to ...
2518 * internals.h: ...here.
2520 1998-12-02 H.J. Lu <hjl@gnu.org>
2522 * pthread.c (__pthread_sig_restart): Initiliaze to 0 if
2523 SIGRTMIN is defined.
2524 (__pthread_sig_cancel): Likewise.
2526 1998-12-01 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2528 * wrapsyscall.c: Include <sys/mman.h> for msync,
2529 <stdlib.h> for system and <termios.h> for tcdrain prototype.
2530 Correct msync declaration.
2532 1998-11-29 Roland McGrath <roland@baalperazim.frob.com>
2534 * sysdeps/pthread/bits/libc-tsd.h (__libc_tsd_define, __libc_tsd_get,
2535 __libc_tsd_set): New macros for new interface.
2536 * no-tsd.c: New file, provide uninitialized defns of
2537 __libc_internal_tsd_get and __libc_internal_tsd_set.
2538 * Makefile (routines): Add no-tsd.
2540 1998-10-12 Roland McGrath <roland@baalperazim.frob.com>
2542 * internals.h: Include <bits/libc-tsd.h>, not <bits/libc-lock.h>.
2543 * sysdeps/pthread/bits/libc-lock.h (__libc_internal_tsd_get,
2544 __libc_internal_tsd_set): Move decls to ...
2545 * sysdeps/pthread/bits/libc-tsd.h: New file for __libc_internal_tsd_*
2548 * sysdeps/pthread/bits/libc-lock.h (__libc_internal_tsd_get,
2549 __libc_internal_tsd_set): Make these pointers to functions, not
2550 functions; remove #pragma weak decls for them.
2551 * specific.c (__libc_internal_tsd_get, __libc_internal_tsd_set):
2552 Define static functions and initialized pointers to them.
2554 1998-11-18 Ulrich Drepper <drepper@cygnus.com>
2556 * Makefile (CFLAGS-mutex.c): Define as -D__NO_WEAK_PTHREAD_ALIASES.
2557 (CFLAGS-specific.c): Likewise.
2558 (CFLAGS-pthread.c): Likewise.
2559 (CFLAGS-ptfork.c): Likewise.
2560 (CFLAGS-cancel.c): Likewise.
2561 * sysdeps/pthread/bits/libc-lock.h: Don't mark __pthread_* functions
2562 as weak references if __NO_WEAK_PTHREAD_ALIASES is defined.
2564 * mutex.c (pthread_mutex_init): Define as strong symbol.
2565 (pthread_mutex_destroy): Likewise.
2566 (pthread_mutex_trylock): Likewise.
2567 (pthread_mutex_lock): Likewise.
2568 (pthread_mutex_unlock): Likewise.
2569 (pthread_mutexattr_init): Likewise.
2570 (pthread_mutexattr_destroy): Likewise.
2571 (pthread_once): Likewise.
2572 * ptfork.c (pthread_atfork): Likewise.
2573 * specific.c (pthread_key_create): Likewise.
2574 (pthread_setspecific): Likewise.
2575 (pthread_getspecific): Likewise.
2577 1998-11-15 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
2579 * linuxthreads.texi: Fix punctuation after xref.
2581 1998-11-10 H.J. Lu <hjl@gnu.org>
2583 * sysdeps/unix/sysv/linux/bits/local_lim.h: Undefine NR_OPEN
2584 if it is defined in <linux/limits.h>.
2586 1998-10-29 14:28 Ulrich Drepper <drepper@cygnus.com>
2588 * spinlock.h (__pthread_trylock): Define inline.
2589 (__pthread_lock): Add extra parameter to declaration. Declare
2590 using internal_function.
2591 (__pthread_unlock): Declare using internal_function.
2592 * spinlock.c (__pthread_lock): Add new parameter. Use it instead
2593 of local variable self. Avoid recomputing self. Define using
2595 (__pthread_trylock): Remove.
2596 (__pthread_unlock): Define using internal_function.
2597 * cancel.c: Adjust for __pthread_lock interface change. Use already
2598 computed self value is possible.
2599 * condvar.c: Likewise.
2601 * manager.c: Likewise.
2602 * mutex.c: Likewise.
2603 * pthread.c: Likewise.
2604 * rwlock.c: Likewise.
2605 * semaphore.c: Likewise.
2606 * signals.c: Likewise.
2608 1998-10-27 13:46 Ulrich Drepper <drepper@cygnus.com>
2610 * sysdeps/pthread/pthread.h (struct _pthread_cleanup_buffer): Prepend
2611 __ to field names of the struct.
2612 * sysdeps/pthread/bits/pthreadtypes.h (struct _pthread_fastlock):
2614 (pthread_attr_t): Likewise.
2615 (pthread_cond_t): Likewise.
2616 (pthread_condattr_t): Likewise.
2617 (pthread_mutex_t): Likewise.
2618 (pthread_mutexattr_t): Likewise.
2619 (pthread_rwlock_t): Likewise.
2620 (pthread_rwlockattr_t): Likewise.
2621 * attr.c: Adjust for pthread.h and pthreadtypes.h change.
2622 * cancel.c: Likewise.
2623 * condvar.c: Likewise.
2624 * manager.c: Likewise.
2625 * mutex.c: Likewise.
2626 * pthread.c: Likewise.
2627 * ptlongjmp.c: Likewise.
2628 * rwlock.c: Likewise.
2629 * spinlock.c: Likewise.
2631 1998-10-09 Ulrich Drepper <drepper@cygnus.com>
2633 * sysdeps/i386/pt-machine.h (get_eflags, set_eflags): Mark these
2636 * sysdeps/i386/i686/pt-machine.h: Remove unused inline
2639 * Makefile (libpthread-routines): Add pt-machine.
2640 * pt-machine.c: New file.
2641 * sysdeps/alpha/pt-machine.h: Define PT_EI as extern inline is not
2642 yet defined. Use PT_EI in extern inline definitions.
2643 * sysdeps/arm/pt-machine.h: Likewise.
2644 * sysdeps/i386/pt-machine.h: Likewise.
2645 * sysdeps/i386/i686/pt-machine.h: Likewise.
2646 * sysdeps/m68k/pt-machine.h: Likewise.
2647 * sysdeps/mips/pt-machine.h: Likewise.
2648 * sysdeps/powerpc/pt-machine.h: Likewise.
2649 * sysdeps/sparc/sparc32/pt-machine.h: Likewise.
2650 * sysdeps/sparc/sparc64/pt-machine.h: Likewise.
2652 1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2654 * semaphore.h: Include <sys/types.h> so that _pthread_descr
2657 1998-09-15 David S. Miller <davem@pierdol.cobaltmicro.com>
2659 * sysdeps/sparc/sparc32/pt-machine.h (INIT_THREAD_SELF): Add nr
2661 * sysdeps/sparc/sparc64/pt-machine.h (INIT_THREAD_SELF): Likewise.
2663 1998-09-12 14:24 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
2665 * sysdeps/unix/sysv/linux/bits/sigthread.h: Add multiple inclusion
2668 1998-09-02 11:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
2670 * signals.c (sigaction): Check that sig is less than NSIG to avoid
2671 array index overflow.
2673 1998-09-06 10:56 Ulrich Drepper <drepper@cygnus.com>
2675 * sysdeps/pthread/semaphore.h: New file.
2677 1998-09-06 09:08 Ulrich Drepper <drepper@cygnus.com>
2679 * sysdeps/pthread/bits/libc-lock.h (enum __libc_tsd_key_t): Add
2680 _LIBC_TSD_KEY_DL_ERROR.
2682 1998-08-31 Ulrich Drepper <drepper@cygnus.com>
2684 * sysdeps/i386/i686/pt-machine.h (testandset): Add memory clobber.
2685 * sysdeps/i386/pt-machine.h: Likewise.
2686 Suggested by Roland McGrath.
2688 1998-08-28 13:58 Ulrich Drepper <drepper@cygnus.com>
2690 * internals.h: Also define THREAD_GETMEM_NC and THREAD_SETMEM_NC to
2691 access thread data with non-constant offsets.
2692 * specific.c: Use THREAD_GETMEM_NC and THREAD_SETMEM_NC where
2695 * sysdeps/i386/useldt.h: Fix typo. Add THREAD_GETMEM_NC and
2696 THREAD_SETMEM_NC definitions.
2698 * sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM_NC and
2700 * sysdeps/sparc/sparc64/pt-machine.h: Likewise.
2702 1998-08-26 15:46 Ulrich Drepper <drepper@cygnus.com>
2704 * internals.h: Define THREAD_GETMEM and THREAD_SETMEM to default if
2705 not already defined.
2706 (struct _pthread_descr_struct): Add p_self and p_nr field.
2707 * manager.c (__pthread_handles): Define second element to point
2709 (__pthread_handles_num): Initialize to 2.
2710 (__pthread_manager): Use INIT_THREAD_SELF with two arguments.
2711 (pthread_start_thread): Likewise.
2712 (pthread_handle_create): Start search for free slot at entry 2.
2713 Initialize new fields p_self and p_nr.
2714 Call __clone with CLONE_PTRACE if available.
2715 (pthread_free): Call FREE_THREAD_SELF if available.
2716 * pthread.c (__pthread_initial_thread): Initialize new fields.
2717 (__pthread_manager_thread): Likewise.
2718 (__pthread_initialize_manager): Call __clone with CLONE_PTRACE.
2720 * cancel.c: Use THREAD_GETMEM and THREAD_SETMEM to access the
2721 elements of the thread descriptor.
2722 * condvar.c: Likewise.
2723 * errno.c: Likewise.
2725 * manager.c: Likewise.
2726 * pthread.c: Likewise.
2727 * ptlongjmp.c: Likewise.
2728 * semaphore.c: Likewise.
2729 * signals.c: Likewise.
2730 * specific.c: Likewise.
2731 * spinlock.c: Likewise.
2733 * sysdeps/alpha/pt-machine.h (INIT_THREAD_SELF): Add extra parameter.
2735 * sysdeps/i386/useldt.h: New file.
2736 * sysdeps/i386/i686/pt-machine.h: Show how to use this file.
2738 * sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM and
2739 THREAD_SETMEM using __thread_self.
2740 * sysdeps/sparc/sparc64/pt-machine.h: Likewise.
2742 1998-08-24 Geoff Keating <geoffk@ozemail.com.au>
2744 * spinlock.c (__pthread_lock): Reset p_nextwaiting to NULL if it
2745 turned out that we didn't need to queue after all.
2747 1998-08-22 Geoff Keating <geoffk@ozemail.com.au>
2749 * sysdeps/powerpc/pt-machine.h: Remove testandset, it's not used
2750 and wastes space; correct types.
2752 1998-08-08 11:18 H.J. Lu <hjl@gnu.org>
2754 * signals.c (sigaction): Handle NULL argument.
2756 1998-08-04 Ulrich Drepper <drepper@cygnus.com>
2758 * sysdeps/unix/sysv/linux/bits/sigthread.h: Use __sigset_t instead
2761 1998-08-02 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
2763 * Makefile (linuxthreads-version): Extract correct number from
2766 1998-07-29 Xavier Leroy <Xavier.Leroy@inria.fr>
2768 * Banner: Bump version number to 0.8
2769 * FAQ.html: Many updates, in particular w.r.t. debugging.
2770 * manager.c: Support for non-default stacksize for
2771 LinuxThreads-allocated stacks;
2772 don't use guard pages for stacks with default size, rely on
2773 rlimit(RLIMIT_STACK) instead (it's cheaper).
2775 * cancel.c: Use __pthread_sig_cancel and __pthread_sig_restart
2776 everywhere instead of PTHREAD_SIG_CANCEL and PTHREAD_SIG_RESTART.
2777 * condvar.c: Likewise.
2778 * internals.h: Likewise.
2779 * restart.h: Likewise.
2780 * signals.c: Likewise.
2781 * pthread.c: Likewise; set rlimit(RLIMIT_STACK) as we need it.
2783 1998-07-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
2785 * weaks.c: Define pthread_mutexattr_[sg]ettype instead of
2786 __pthread_mutexattr_[sg]ettype. Add more weak aliases.
2787 * Versions: Put __pthread_mutexattr_settype under version
2788 GLIBC_2.0. Don't export __pthread_mutexattr_setkind_np and
2789 __pthread_mutexattr_gettype.
2791 1998-07-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
2793 * sysdeps/pthread/bits/libc-lock.h: Make
2794 __pthread_mutexattr_settype weak. Don't make
2795 __pthread_mutexattr_setkind_np weak.
2797 1998-07-16 10:52 Ulrich Drepper <drepper@cygnus.com>
2799 * manager.c (pthread_handle_create): Check whether sched_setscheduler
2800 call can succeed here.
2802 * mutex.c: Define __pthread_mutexattr_settype and make
2803 __pthread_mutexattr_setkind_np an alias.
2804 Likewise for __pthread_mutexattr_gettype.
2806 1998-07-15 11:00 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
2808 * attr.c (pthread_attr_setschedpolicy): Don't check whether caller
2811 1998-07-14 19:38 Ulrich Drepper <drepper@cygnus.com>
2813 * sysdeps/pthread/bits/libc-lock.h: Define __libc_cleanup_end.
2815 1998-07-11 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2817 * Examples/ex6.c: Include <unistd.h> for usleep.
2819 1998-06-13 11:04 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
2821 * Examples/ex4.c (main): Use exit, not pthread_exit.
2823 1998-07-09 13:39 Ulrich Drepper <drepper@cygnus.com>
2825 * Versions: Add __pthread_mutexattr_gettype and
2826 __pthread_mutexattr_settype.
2827 * lockfile.c: Use __pthread_mutexattr_settype instead of
2828 __pthread_mutexattr_setkind_np.
2829 * mutex.c: Define __pthread_mutexattr_gettype and
2830 __pthread_mutexattr_settype.
2832 * sysdeps/pthread/pthread.h: Declare __pthread_mutexattr_gettype and
2833 __pthread_mutexattr_settype.
2834 * sysdeps/pthread/bits/libc-lock.h (__libc_lock_init_recursive):
2835 Use __pthread_mutexattr_settype.
2837 1998-07-08 22:26 Ulrich Drepper <drepper@cygnus.com>
2839 * Versions: Add pthread_mutexattr_gettype, pthread_mutexattr_settype.
2840 * mutex.c: Define weak alias pthread_mutexattr_gettype and
2841 pthread_mutexattr_settype.
2842 * sysdeps/pthread/pthread.h: Declare these functions.
2843 Move pthread_sigmask and pthread_kill declaration in separate header.
2844 * sysdeps/unix/sysv/linux/bits/sigthread.h: New file.
2846 1998-07-07 15:20 Ulrich Drepper <drepper@cygnus.com>
2848 * Makefile: Add rules to compile and run tests.
2849 * Examples/ex1.c: Little changes to fix warnings.
2850 * Examples/ex2.c: Likewise.
2851 * Examples/ex3.c: Likewise.
2852 * Examples/ex4.c: Likewise.
2853 * Examples/ex5.c: Likewise.
2854 * Examples/ex6.c: New file.
2856 1998-07-05 11:54 Ulrich Drepper <drepper@cygnus.com>
2858 * Versions: Add pthread_attr_init to GLIBC_2.1 version in libc.
2860 1998-07-01 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2862 * attr.c: Include <string.h>.
2864 1998-06-30 11:47 Ulrich Drepper <drepper@cygnus.com>
2866 * attr.c: Include errno.h. Use memcpy to copy sched_param.
2867 * internals.h: Include limits.h.
2868 * manager.c: Use memcpy to copy sched_param.
2869 * ptfork.c: Include errno.h.
2870 * pthread.c: Likewise.
2871 * semaphore.c: Likewise.
2872 * specific.c: Likewise.
2873 * spinlock.h: Likewise.
2874 * sysdeps/pthread/pthread.h: Include only allowed headers. Move
2875 type definition to ...
2876 * sysdeps/pthread/bits/pthreadtypes.h: ...here. New file.
2878 1998-06-29 12:34 Ulrich Drepper <drepper@cygnus.com>
2880 * sysdeps/pthread/pthread.h: Use __PMT not __P for function pointers.
2882 * sysdeps/pthread/pthread.h: Define various PTHREAD_* symbols also
2883 as macros as demanded in POSIX.1, Annex C.
2885 1998-06-29 12:29 Ulrich Drepper <drepper@cygnus.com>
2887 * internals.h (struct pthread_request): For free use pthread_t
2888 instead of pthread_descr.
2889 * join.c (pthread_join): Pass thread_id, not th to manager.
2890 (pthread_detach): Likewise.
2891 * manager.c (__pthread_manager): Except thread ID in FREE_REQ case.
2892 (pthread_exited): Remove detached queue code.
2893 (pthread_handle_free): Expect thread ID parameter and use it to
2894 validate the thread decsriptor. Don't use detached queue.
2895 Patches by Xavier Leroy.
2897 1998-06-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
2899 * libpthread.map: Export accept, longjmp, sigaction, siglongjmp,
2900 _IO_flockfile, _IO_ftrylockfile, _IO_funlockfile,
2901 __pthread_atfork, __pthread_key_create, __pthread_once.
2902 * internals.h: Doc fix.
2903 * pthread.c (__pthread_initialize): Define again.
2905 1998-06-26 Ulrich Drepper <drepper@cygnus.com>
2907 * manager.c (pthread_exited): If thread is not detached put it on
2909 (pthread_handle_free): If thread is not on list with living threads
2910 search on list with detached threads.
2912 * sysdeps/pthread/pthread.h (PTHREAD_RWLOCK_INITIALIZER): Correct
2913 for new definition of pthread_rwlock_t.
2915 * spinlock.c: Correct test whether to compile
2916 __pthread_compare_and_swap or not.
2918 1998-06-25 19:27 Ulrich Drepper <drepper@cygnus.com>
2920 * attr.c: Finish user stack support. Change locking code to be safe
2921 in situations with different priorities.
2922 * cancel.c: Likewise.
2923 * condvar.c: Likewise.
2924 * internals.h: Likewise.
2926 * manager.c: Likewise.
2927 * mutex.c: Likewise.
2928 * pthread.c: Likewise.
2929 * ptlongjmp.c: Likewise.
2930 * queue.h: Likewise.
2931 * rwlock.c: Likewise.
2932 * semaphore.c: Likewise.
2933 * semaphore.h: Likewise.
2934 * signals.c: Likewise.
2935 * spinlock.c: Likewise.
2936 * spinlock.h: Likewise.
2937 * sysdeps/pthread/pthread.h: Likewise.
2938 Patches by Xavier Leroy.
2940 * sysdeps/i386/i686/pt-machine.h: New file.
2942 1998-06-25 Ulrich Drepper <drepper@cygnus.com>
2944 * sysdeps/pthread/pthread.h: Make [sg]et_stacksize and
2945 [sg]et_stackaddr prototypes always available.
2947 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define
2948 _POSIX_THREAD_ATTR_STACKSIZE and _POSIX_THREAD_ATTR_STACKADDR.
2950 1998-06-24 Ulrich Drepper <drepper@cygnus.com>
2952 * manager.c (pthread_free): Undo patch from 980430.
2953 Reported by David Wragg <dpw@doc.ic.ac.uk>.
2955 1998-06-09 15:07 Ulrich Drepper <drepper@cygnus.com>
2957 * manager.c: Define __pthread_manager_adjust_prio and use it to
2958 increase priority when needed.
2959 * internals.h: Add prototype for __pthread_manager_adjust_prio.
2960 * mutex.c: Optimize mutexes to wake up only one thread.
2961 * pthread.c: Move PID of manager for global variable in structure
2963 Patches by Xavier Leroy.
2965 1998-06-07 13:47 Ulrich Drepper <drepper@cygnus.com>
2967 * sysdeps/pthread/bits/libc-lock.h: Optimize cleanup handlers a bit.
2969 1998-06-03 Andreas Jaeger <aj@arthur.rhein-neckar.de>
2971 * attr.c: Correct typo.
2973 1998-05-01 Ulrich Drepper <drepper@cygnus.com>
2975 * manager.c (pthread_free): Unmap guard before the stack.
2976 Patch by Matthias Urlichs.
2978 1998-04-30 Ulrich Drepper <drepper@cygnus.com>
2980 * manager.c (pthread_free): Detect already free child.
2981 Patch by Xavier Leroy, reported by Matthias Urlichs.
2983 1998-04-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
2985 * Makefile (linuxthreads-version): Renamed back from
2988 1998-04-21 Ulrich Drepper <drepper@cygnus.com>
2990 * ptlongjmp.c: Add prototypes for __libc_siglongjmp and
2993 1998-04-20 14:55 Ulrich Drepper <drepper@cygnus.com>
2995 * Makefile (libpthread-routines): Add ptlongjmp and spinlock.
2996 * internals.h: Add definitions for new spinlock implementation.
2997 * ptlongjmp.c: New file.
2998 * spinlock.c: New file.
2999 * spinlock.h (acquire): Don't reschedule using __sched_yield, use
3000 new function __pthread_acquire to prevent deadlocks with thread
3001 with different priorities.
3002 Patches by Xavier Leroy <Xavier.Leroy@inria.fr>.
3004 1998-03-16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
3006 * manager.c (__pthread_manager): Reduce first argument to select
3007 to include just the needed file descriptor.
3009 1998-03-17 00:06 Ulrich Drepper <drepper@cygnus.com>
3011 * manager.c: Fix last patch which caused core dumps.
3013 * pthread.c: Correctly handle missing SIGRTMIN.
3015 1998-03-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
3017 * libpthread.map: Add __libc_internal_tsd_get and
3018 __libc_internal_tsd_set. Add missing cancelable functions. Export
3019 libc internal versions of the cancelable functions.
3021 1998-03-13 16:51 Ulrich Drepper <drepper@cygnus.com>
3023 * weaks.c: Define pthread_attr_init as GLIBC_2.0 and GLIBC_2.1.
3025 1998-03-13 00:46 Ulrich Drepper <drepper@cygnus.com>
3027 * attr.c: Implement pthread_attr_[gs]etguardsize,
3028 pthread_attr_[gs]setstackaddr, pthread_attr_[gs]etstacksize.
3029 Change pthread_attr_init to have two interfaces.
3030 * internals.h (struct _pthread_descr_struct): Add new fields for
3032 * libpthread.map: Add names in GLIBC_2.1 section.
3033 * manager.c (pthread_handle_create): Implement guardsize and
3035 (pthread_free): Likewise.
3036 * pthread.c (pthread_create): Add new interface for changed
3038 * sysdeps/pthread/pthread.h: Add prototypes for new functions.
3039 * sysdeps/unix/sysv/linux/bits/local_lim.h: Add definition of
3042 1998-03-11 00:42 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
3044 * manager.c: Enable resetting of the thread scheduling policy
3045 to SCHED_OTHER when the parent thread has a different one.
3047 1998-02-01 13:51 Ulrich Drepper <drepper@cygnus.com>
3049 * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define
3050 _POSIX_ASYNCHRONOUS_IO.
3052 * sysdeps/pthread/pthread.h: Define bits for Unix98 variants of
3054 * mutex.c: Implement new mutex types.
3056 * internals.h: Include <signal.h>.
3058 * libpthread.map: Add __erno_location and __h_errno_location.
3060 * errno.c: Return pointer to variable actually in use. This might
3061 not be the one in the thread structure.
3062 * internals.h (struct _pthread_descr_struct): Add new fields p_errnop
3064 * manager.c (__pthread_manager): Set p_errnop and p_h_errnop member
3065 of manager thread structure.
3066 (pthread_handle_create): Set p_errnop and p_h_errnop members for new
3068 * pthread.c: Adapt initializer for thread structures.
3069 (__pthread_initial_thread): Set p_errnop and p_h_errnop member.
3070 (__pthread_reset_main_thread): Reset p_errnop and p_h_errnop of
3071 current thread to global variables.
3073 1998-01-31 17:27 Ulrich Drepper <drepper@cygnus.com>
3075 * rwlock.c: New file.
3076 * Makefile (libpthread-routines): Add rwlock.
3077 * sysdeps/pthread/pthread.h: Define data structures and declare
3079 * libpthread.map: Add new functions.
3081 1997-12-18 13:50 Philip Blundell <pb@nexus.co.uk>
3083 * sysdeps/arm/pt-machine.h: New file; add ARM support.
3084 * sysdeps/arm/Implies: likewise.
3085 * README: Document it.
3087 1997-12-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
3089 * signals.c: Remove unneeded initializer for sigwaited, saving a
3092 1997-04-11 01:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
3094 * semaphore.c (sem_init): Set sem_spinlock only if available.
3096 1997-12-04 01:48 Ulrich Drepper <drepper@cygnus.com>
3098 * mutex.c: Implement PTHREAD_MUTEX_CHECKERROR.
3099 * sysdeps/pthread/pthread.h: Define PTHREAD_MUTEX_CHECKERROR.
3101 * Makefile: Update from LinuxThreads 0.7.
3102 * internals.h. Likewise.
3103 * manager.c: Likewise.
3104 * mutex.c: Likewise.
3105 * pthread.c: Likewise.
3106 * signals.c: Likewise.
3107 * specific.c: Likewise.
3108 * Examples/ex3.c: Likewise.
3110 1997-11-20 18:13 Ulrich Drepper <drepper@cygnus.com>
3112 * pthread.c (__pthread_reset_main_thread): Close pipe only if still
3115 1997-10-29 05:38 Ulrich Drepper <drepper@cygnus.com>
3117 * wrapsyscall.c: Add socket functions which are also cancelation
3120 1997-10-19 21:40 Wolfram Gloger <wg@wolfram.dent.med.uni-muenchen.de>
3122 * specific.c (__libc_internal_tsd_set, __libc_internal_tsd_get):
3123 New functions for fast thread specific data within libc.
3125 * internals.h: Add new array p_libc_specific to struct
3126 _pthread_descr_struct.
3128 * sysdeps/pthread/bits/libc-lock.h: Declare new functions.
3130 1997-10-13 05:39 Ulrich Drepper <drepper@cygnus.com>
3132 * semaphore.h: Add __BEGIN_DECLS/__END_DECLS.
3133 Reported by Ralf Corsepius <corsepiu@faw.uni-ulm.de>.
3135 1997-08-29 03:05 Ulrich Drepper <drepper@cygnus.com>
3137 * internals.h (struct _pthread_descr_struct): Add definitions for
3138 two-level specific key handling.
3139 * manager.c (pthread_handle_create): Initialize specific memory array.
3140 * specific.c: Implement two-level key handling.
3141 * weaks.c: Don't provide dummy key handling.
3142 * sysdeps/pthread/bits/libc-lock.h: Typedef __libc_lock_t (no #define).
3143 Add definition of __libc_key_t.
3144 * sysdeps/unix/sysv/linux/bits/local_lim.h: Define PTHREAD_KEYS_MAX
3146 Add definition of _POSIX_THREAD_DESTRUCTOR_ITERATIONS and
3147 PTHREAD_DESTRUCTOR_ITERATIONS.
3149 * manager.c (pthread_handle_create): Compare mmap result with
3152 * ptfork.c: Rename to __pthread_atfork and make old name a weak alias.
3153 * sysdeps/pthread/bits/pthread.h: Add prototype for __pthread_atfork.
3155 1997-08-22 19:04 Richard Henderson <rth@cygnus.com>
3157 sysdeps/sparc -> sysdeps/sparc/sparc32
3158 sysdeps/sparc64 -> sysdeps/sparc/sparc64
3160 * internals.h: Change definition of THREAD_SELF to be an expression,
3161 not a statement that did a return.
3162 * sysdeps/alpha/pt-machine.h (THREAD_SELF): Update accordingly.
3163 * sysdeps/sparc/sparc32/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF):
3164 Follow Solaris and use a "system reserved" register (%g6) to hold
3165 the thread descriptor.
3166 * sysdeps/sparc/sparc64/pt-machine.h: Likewise.
3168 1997-08-03 00:09 Ulrich Drepper <drepper@cygnus.com>
3170 * mutex.c: Correct pthread_once. Patch by Xavier Leroy.
3171 * sysdeps/pthread/pthread.h: Add prototype for __pthread_once.
3172 * sysdeps/pthread/bits/pthread.h: Add macros for __libc_once.
3174 * semaphore.c: Include spinlock.h only when needed.
3176 * specific.c (__pthread_setsepcific, __pthread_getspecific): Reject
3177 keys for entries not in use.
3179 * weaks.c: Implement key handling functions for real.
3181 1997-06-29 01:04 Richard Henderson <richard@gnu.ai.mit.edu>
3183 Initial sparc64-linux support:
3184 * sysdeps/sparc64/Implies: New file.
3185 * sysdeps/sparc64/pt-machine.h: Likewise.
3187 1997-06-29 00:48 Ulrich Drepper <drepper@cygnus.com>
3189 * semaphore.c: Include spinlock.h at correct place.
3192 1997-06-13 10:06 Richard Henderson <rth@tamu.edu>
3194 The Great Bit File Move:
3195 * sysdeps/alpha/semaphorebits.h: -> .../bits/semaphore.h.
3196 * sysdeps/powerpc/semaphorebits.h: Likewise.
3197 * sysdeps/pthread/cmpxchg/semaphorebits.h: Likewise.
3198 * sysdeps/pthread/no-cmpxchg/semaphorebits.h: Likewise.
3199 * sysdeps/pthread/libc-lock.h: -> bits/
3200 * sysdeps/pthread/stdio-lock.h: Likewise.
3201 * sysdeps/unix/sysv/linux/local_lim.h: Likewise.
3202 * sysdeps/unix/sysv/linux/posix_opt.h: Likewise.
3203 * semaphore.h: Likewise.
3204 * sysdeps/pthread/pthread.h: Likewise.
3206 * lockfile.c: <foo.h> -> <bits/foo.h>.
3207 * semaphore.h: Likewise.
3209 * Makefile: (headers): foo.h -> bits/foo.h.
3210 * sysdeps/pthread/Makefile: Likewise.
3212 1997-04-11 01:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
3214 * semaphore.c (sem_init): Set sem_spinlock only if available.
3216 * sysdeps/m68k/pt-machine.h (testandset, __compare_and_swap): Fix
3219 1997-04-09 03:00 Ulrich Drepper <drepper@cygnus.com>
3221 Update from LinuxThreads 0.6.
3223 * attr.c (pthread_attr_getdetachstate): Use __sched_get_priority_max
3224 and __sched_get_priority_min instead of names without `__'.
3226 * manager.c: Rewrite large parts to implement opaque pthread_t.
3228 * cancel.c: Adapt for opaque pthread_t type.
3229 * condvar.c: Likewise.
3230 * errno.c: Likewise.
3232 * mutex.c: Likewise.
3233 * pthread.c: Likewise.
3234 * signals.c: Likewise.
3235 * specific.c: Likewise.
3236 * restart.h: Likewise.
3237 * queue.h: Likewise.
3238 * Examples/ex3.c: Likewise.
3239 * Examples/ex4.c: Likewise.
3240 * sysdeps/pthread/pthread.h: Likewise.
3242 * pthread.c: Accumulate time for all threads in thread manager.
3244 * semaphore.c: Implement fallback implementation for architectures
3245 sometimes missing compare-exchange operations.
3247 * cancel.c (pthread_cancel): Validate handle argument.
3248 * join.c (pthread_join): Likewise.
3249 (pthread_detach): Likewise.
3250 * signals.c (pthread_kill): Likewise.
3252 * spinlock.h (acquire): Use __sched_yield not sched_yield.
3254 * queue.h (enqueue): Enqueue thread according to priority.
3256 * internals.c (struct pthread_start_args): New struct for passing
3257 args to cloning function.
3258 (struct _pthread): Rename to _pthread_descr_struct and adapt for
3261 * Examples/Makefile (clean): Pass -f option to rm.
3263 * sysdeps/i386/pt-machine.h: Add check for compare-exchange instruction
3264 and define TEST_FOR_COMPARE_AND_SWAP.
3265 * sysdeps/i386/i486/pt-machine.h: Removed.
3267 * sysdeps/unix/sysv/linux/local_lim.h (PTHREAD_THREADS_MAX): Increase
3270 1997-04-04 16:38 Ulrich Drepper <drepper@cygnus.com>
3272 * restart.h (suspend): Clear p_signal before suspending.
3273 (suspend_with_cancellation): Likewise.
3274 Patch by Xavier Leroy <Xavier.Leroy@inria.fr>.
3276 * weaks.c: Make __pthread_key_create return 1.
3277 * sysdeps/pthread/libc-lock.h: Define __libc_key_create,
3278 __libc_getspecific, __libc_setspecific, and __libc_key_t.
3279 * sysdeps/pthread/stdio-lock.h: Don't care for implementation not
3282 1997-03-19 15:13 Miguel de Icaza <miguel@nuclecu.unam.mx>
3284 * sysdeps/sparc/pt-machine (RELEASE): Fix.
3286 1997-03-01 07:55 Geoff Keating <geoffk@ozemail.com.au>
3288 * sysdeps/powerpc/Implies: Added.
3289 * sysdeps/powerpc/pt-machine.h: Added.
3290 * sysdeps/powerpc/semaphorebits.h: Added.
3292 1997-01-22 01:22 Ulrich Drepper <drepper@cygnus.com>
3294 * pthread.c (__pthread_initial_thread): Correct
3296 (__pthread_manager_thread): Likewise.
3297 Reported by Andreas Jaeger.
3299 1997-01-18 22:15 Richard Henderson <rth@tamu.edu>
3301 Since sigset_t no longer fits in a register, we can't pass in the
3302 thread's initial mask so easily. Take this opportunity to simplify
3303 the clone implementation by only accepting a single void* argument.
3305 * manager.c (__pthread_manager): Put thread vitals in the thread
3306 struct instead of as arguments through clone.
3307 (pthread_start_thread): Look for them there.
3308 * internals.h (struct _pthread): Add p_initial_fn,
3309 p_initial_fn_arg, p_initial_mask. Fix __pthread_manager proto.
3310 * pthread.c (pthread_initialize_manager): Revise clone invocation.
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