diff options
Diffstat (limited to 'libpthread/linuxthreads')
64 files changed, 12674 insertions, 0 deletions
diff --git a/libpthread/linuxthreads/ChangeLog b/libpthread/linuxthreads/ChangeLog new file mode 100644 index 000000000..0025b87c0 --- /dev/null +++ b/libpthread/linuxthreads/ChangeLog @@ -0,0 +1,1257 @@ +2000-02-22 Ulrich Drepper <drepper@redhat.com> + + * semaphore.h (SEM_FAILED): Use 0 not NULL. + +2000-02-14 Ulrich Drepper <drepper@redhat.com> + + * condvar.c (pthread_cond_timedwait_relative_old): Tight loop with + nanosleep does not work either. Get absolute time inside the + loop. + (pthread_cond_timedwait_relative_new): Likewise. + Patch by Kaz Kylheku <kaz@ashi.footprints.net>. + +2000-02-13 Ulrich Drepper <drepper@redhat.com> + + * condvar.c (pthread_cond_timedwait_relative_old): Undo last patch + but keep the code around. A bug in the kernel prevent us from + using the code. + (pthread_cond_timedwait_relative_new): Likewise. + (PR libc/1597 and libc/1598). + +2000-02-01 Kaz Kylheku <kaz@ashi.footprints.net> + + * condvar.c (pthread_cond_timedwait_relative_old): Do tight + loop around nanosleep calls instead of around most of the function + (pthread_cond_timedwait_relative_new): Likewise. + body. Got rid of backwards goto and one local. + +2000-01-31 Ulrich Drepper <drepper@redhat.com> + + * condvar.c (pthread_cond_timedwait_relative_old): Recompute time + before every nanosleep call to account for time spent in the rest + of the function. + (pthread_cond_timedwait_relative_new): Likewise. + Patch by khendricks@ivey.uwo.ca (PR libc/1564). + +2000-01-29 Ulrich Drepper <drepper@redhat.com> + + * condvar.c (pthread_cond_timedwait_relative_old): Get remaining time + from nanosleep call so that in case we restart we only wait for the + remaining time. + (pthread_cond_timedwait_relative_new): Likewise. + Patch by khendricks@ivey.uwo.ca (PR libc/1561). + +2000-01-18 Ulrich Drepper <drepper@cygnus.com> + + * manager.c (pthread_allocate_stack): Compute guard page address + correctly. Patch by HJ Lu. + +2000-01-12 Ulrich Drepper <drepper@cygnus.com> + + * internals.h (pthread_readlock_info): New structure. + (_pthread_descr_struct): Add p_readlock_list, p_readlock_free, and + p_untracked_readlock_count. + * pthread.c (__pthread_initial_thread, pthread_manager_thread): + Add initializers for new fields. + * manager.c (pthread_free): Free read/write lock lists. + * queue.h (queue_is_empty): New function. + * rwlock.c: Implement requirements about when readers should get + locks assigned. + * sysdeps/pthread/pthread.h + (PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP): New definition. + * sysdeps/pthread/bits/pthreadtypes.h (struct _pthread_rwlock_t): + Define this name as well. + Patches by Kaz Kylheku <kaz@ashi.footprints.net>. + +2000-01-06 Andreas Jaeger <aj@suse.de> + + * pthread.c: Remove extra initializer. + +2000-01-05 Ulrich Drepper <drepper@cygnus.com> + + * pthread.c (__pthread_initial_thread, pthread_manager_thread): + Adjust initializers for struct _pthread_descr_struct change. + * internals.h (struct _pthread_descr_struct): Move new elements to + the end. + +2000-01-03 Kaz Kylheku <kaz@ashi.footprints.net> + + Redesigned how cancellation unblocks a thread from internal + cancellation points (sem_wait, pthread_join, + pthread_cond_{wait,timedwait}). + Cancellation won't eat a signal in any of these functions + (*required* by POSIX and Single Unix Spec!). + * condvar.c: Spontaneous wakeup on pthread_cond_timedwait won't eat a + simultaneous condition variable signal (not required by POSIX + or Single Unix Spec, but nice). + * spinlock.c: __pthread_lock queues back any received restarts + that don't belong to it instead of assuming ownership of lock + upon any restart; fastlock can no longer be acquired by two threads + simultaneously. + * restart.h: Restarts queue even on kernels that don't have + queued real time signals (2.0, early 2.1), thanks to atomic counter, + avoiding a rare race condition in pthread_cond_timedwait. + +1999-12-28 Ulrich Drepper <drepper@cygnus.com> + + * sysdeps/alpha/pt-machine.h: Move stack_pointer definition to the + beginning. + + * manager.c (__pthread_start): Add one more cast to assignment of + arg to prevent warning on 64bit machines. + +1999-12-21 Ulrich Drepper <drepper@cygnus.com> + + * manager.c (pthread_handle_create): Set p_pid of new thread + before calling the callback function to report a new thread. + +1999-12-20 Andreas Jaeger <aj@suse.de> + + * pthread.c (pthread_initialize): Move getrlimit call after + setting of errno. + +1999-12-01 Ulrich Drepper <drepper@cygnus.com> + + * sysdeps/i386/pt-machine.h: Move stack_pointer definition to the + beginning. + * sysdeps/i386/i686/pt-machine.h: Likewise. + Patches by Alan Modra <alan@SPRI.Levels.UniSA.Edu.Au>. + +1999-11-23 Ulrich Drepper <drepper@cygnus.com> + + * manager.c (pthread_start_thread_event): Initialize p_pid already + here. + +1999-11-22 Ulrich Drepper <drepper@cygnus.com> + + * internals.h: Add prototype for __pthread_manager_event. + * manager.c (__pthread_manager_event): New function. + (pthread_start_thread_event): Correct computation of self. + Use INIT_THREAD_SELF. + * pthread.c (__pthread_manager_thread): Initialize p_lock. + (__pthread_initialize_manager): Respect event flags also for creation + of the manager thread. + +1999-11-08 Ulrich Drepper <drepper@cygnus.com> + + * pthread.c (__pthread_initialize_manager): Initialize + __pthread_manager_thread.p_tid. + +1999-11-02 Ulrich Drepper <drepper@cygnus.com> + + * internals.h: Declare __pthread_last_event. + * manager.c: Define __pthread_last_event. + (pthread_handle_create): Set __pthread_last_event. + (pthread_exited): Likewise. + * join.c (pthread_exit): Likewise. + + * Makefile (libpthread-routines): Add events. + * events.c: New file. + * internals.h: Protect against multiple inclusion. + Include thread_dbP.h header. + (struct _pthread_descr_struct): Add new fields p_report_events and + p_eventbuf. + Declare event reporting functions. + * join.c (pthread_exit): Signal event if this is wanted. + * manager.c (__pthread_threads_events): New variable. + (pthread_handle_create): Take new parameters with event information. + Signal TD_CREATE event if wanted. + (__pthread_manager): Adjust pthread_handle_create call. + (pthread_start_thread_event): New function. Block until manager is + finished and then call pthread_start_thread. + (pthread_exited): Signal TD_REAP event if wanted. + +1999-10-26 Ulrich Drepper <drepper@cygnus.com> + + * restart.h (suspend_with_cancellation): Rewrite as a macro. + + * condvar.c (pthread_cond_timedwait_relative): Don't mark as inline. + +1999-10-21 Xavier Leroy <Xavier.Leroy@inria.fr> + + * linuxthreads/pthread.c: For i386, wrap pthread_handle_sigrestart + and pthread_handle_sigcancel with functions that restore + %gs from the signal context. For each signal handling function, + two wrappers are required, one for a non-RT signal and one for + a RT signal. + * linuxthreads/signal.c: For i386, add code to restore %gs + from the signal context in pthread_sighandler and + pthread_sighandler_rt. + +1999-10-09 Andreas Jaeger <aj@suse.de> + + * internals.h: Add __new_sem_post to get prototype in + manager.c; include semaphore.h for needed types. + +1999-10-08 Ulrich Drepper <drepper@cygnus.com> + + * manager.c (__pthread_manager) [REQ_POST]: Use __new_sem_post + directly instead of calling sem_post which should not be necessary + but is faster and might help in some case to work around problems. + +1999-09-25 Ulrich Drepper <drepper@cygnus.com> + + * condvar.c (pthread_cond_timedwait_relative): Never return with + EINTR. Patch by Andreas Schwab. + +1999-09-19 Ulrich Drepper <drepper@cygnus.com> + + * signals.c (sigaction): Correct last patch. Don't select + pthread_sighandler_rt based on the signal number but instead of + the SA_SIGINFO flag. + +1999-09-23 Ulrich Drepper <drepper@cygnus.com> + + * specific.c: Move definitions of struct pthread_key_struct and + destr_function to ... + * internals.h: ...here. + +1999-09-03 Andreas Schwab <schwab@suse.de> + + * ptfork.c (__fork): Renamed from fork and use __libc_fork. Add + fork as weak alias. + (__vfork): New function, alias vfork. + * Versions: Export __fork, vfork, and __vfork in libpthread. + +1999-08-23 Andreas Schwab <schwab@suse.de> + + * signals.c (pthread_sighandler): Add SIGCONTEXT_EXTRA_ARGS to + call to signal handler. + +1999-08-20 Ulrich Drepper <drepper@cygnus.com> + + * pthread.c (__pthread_reset_main_thread): Undo last change. + (__pthread_kill_other_threads_np): Reset signal handlers for the + signals we used in the thread implementation here. + +1999-08-19 Ulrich Drepper <drepper@cygnus.com> + + * pthread.c (__pthread_reset_main_thread): Reset signal handlers + for the signals we used in the thread implementation [PR libc/1234]. + + * Versions: Export __pthread_kill_other_threads_np from libpthread + for GLIBC_2.1.2. + + * signals.c: Pass sigcontext through wrapper to the user function. + +1999-08-01 Ulrich Drepper <drepper@cygnus.com> + + * Versions [ld.so] (GLIBC_2.0): Export __libc_internal_tsd_get and + __libc_internal_tsd_set. + +1999-07-29 Andreas Jaeger <aj@arthur.rhein-neckar.de> + + * manager.c: Remove inclusion of <linux/tasks.h> since it's not + needed anymore. + +1999-07-16 Andreas Jaeger <aj@arthur.rhein-neckar.de> + + * internals.h: Align _pthread_descr_struct to 32 bytes. + Reported by Tim Hockin <thockin@cobaltnet.com>, close PR libc/1206. + +1999-07-09 Ulrich Drepper <drepper@cygnus.com> + + * manager.c (pthread_handle_create): Free mmap region after stack + if clone failed. Patch by Kaz Kylheku <kaz@ashi.FootPrints.net>. + +1999-07-09 Cristian Gafton <gafton@redhat.com> + + * Makefile (libpthread-routines): Add oldsemaphore routine. + * Versions: Add sem_destroy, sem_getvalue, sem_init, sem_post, + sem_trywait, and sem_wait to GLIBC_2.1. + * oldsemaphore.c: New file. + * semaphore.c: Add default_symbol_versions for the changed functions. + (__new_sem_init): Rename from sem_init. + (__new_sem_post): Rename from sem_post. + (__new_sem_wait): Rename from sem_wait. + (__new_sem_trywait): Rename from sem_trywait. + (__new_sem_getvalue): Rename from sem_getvalue. + (__new_sem_destroy): Rename from sem_destroy. + +1999-06-23 Robey Pointer <robey@netscape.com> + + * internals.h: Added p_nextlock entry to separate queueing for a + lock from queueing for a CV (sometimes a thread queues on a lock + to serialize removing itself from a CV queue). + * pthread.c: Added p_nextlock to initializers. + * spinlock.c: Changed to use p_nextlock instead of p_nextwaiting. + +1999-05-23 Andreas Jaeger <aj@arthur.rhein-neckar.de> + + * man/pthread_cond_init.man: Correct example. + Reported by Tomas Berndtsson <tomas@nocrew.org>. + + * linuxthreads.texi (Condition Variables): Likewise. + +1999-05-18 Jakub Jelinek <jj@ultra.linux.cz> + + * sysdeps/sparc/sparc64/pt-machine.h (__compare_and_swap): Use + casx not cas, also successful casx returns the old value in rd + and not the new value. + +1999-05-16 Xavier Leroy <Xavier.Leroy@inria.fr> + + * manager.c: If pthread_create() is given a NULL attribute + and the thread manager runs with a realtime policy, set the + scheduling policy of the newly created thread back to SCHED_OTHER. + * manager.c: If the PTHREAD_INHERIT_SCHED attribute is given, + initialize the schedpolicy field of new_thread->p_start_args + to that of the calling thread. + +1999-04-29 Ulrich Drepper <drepper@cygnus.com> + + * sysdeps/sparc/sparc64/pt-machine.h (__compare_and_swap): cas + instruction does not allow memory element to use offset. + +1999-04-28 Ulrich Drepper <drepper@cygnus.com> + + * manager.c (pthread_allocate_stack): Optimize initialization of new + thread descriptor. + + * sysdeps/pthread/bits/libc-lock.h (__libc_lock_define_initialized): + Don't use initializer since it is all zeroes. + (__libc_once_define): Likewise. + +1999-04-16 Andreas Jaeger <aj@arthur.rhein-neckar.de> + + * sysdeps/arm/Implies: Removed since cmpxchg/no-cmpxchg + doesn't exist anymore. + * sysdeps/i386/Implies: Likewise. + * sysdeps/m68k/Implies: Likewise. + * sysdeps/mips/Implies: Likewise. + * sysdeps/powerpc/Implies: Likewise. + * sysdeps/sparc/sparc32/Implies: Likewise. + * sysdeps/sparc/sparc64/Implies: Likewise. + +1999-04-15 Ulrich Drepper <drepper@cygnus.com> + + * sysdeps/alpha/bits/semaphore.h: Removed. + * sysdeps/powerpc/bits/semaphore.h: Removed. + * sysdeps/pthread/cmpxchg/bits/semaphore.h: Removed. + * sysdeps/pthread/no-cmpxchg/bits/semaphore.h: Removed. + * Makefile (headers): Remove bits/semaphore.h. + + * semaphore.h: Define _pthread_descr if necessary. + Don't include limits.h. Define SEM_VALUE_MAX directly. + Define SEM_FAILED. + (sem_t): Protect element names with leading __. + Add declarations for sem_close, sem_open, and sem_unlink. + * semaphore.c: Adjust all functions for new element names. + Define sem_close, sem_open, and sem_unlink. + * Versions (libthread): Add sem_close, sem_open, and sem_unlink for + GLIBC_2.1.1. + * sysdeps/pthread/bits/pthreadtypes.h: Define _pthread_descr only if + necessary. + +1999-03-16 H.J. Lu <hjl@gnu.org> + + * specific.c (pthread_key_delete): Check th->p_terminated to see + if the thread is running. + + * Versions (__libc_internal_tsd_get, __libc_internal_tsd_set): + Added to GLIBC_2.0 for libc.so. + +1999-02-12 H.J. Lu <hjl@gnu.org> + + * Versions (__libc_current_sigrtmin, __libc_current_sigrtmax, + __libc_allocate_rtsig): Added to GLIBC_2.1. + + * internals.h (DEFAULT_SIG_RESTART): Removed. + (DEFAULT_SIG_CANCEL): Removed. + + * pthread.c (init_rtsigs, __libc_current_sigrtmin, + __libc_current_sigrtmax, __libc_allocate_rtsig): New functions. + (__pthread_sig_restart, __pthread_sig_cancel, + __pthread_sig_debug): Initialized. + (pthread_initialize): Call init_rtsigs () to initialize + real-time signals. + +1999-02-03 H.J. Lu <hjl@gnu.org> + + * manager.c (__pthread_manager): Do block __pthread_sig_debug. + Don't restart the thread which sent REQ_DEBUG. + (pthread_start_thread): Check if __pthread_sig_debug > 0 + before debugging. + + * pthread.c (__pthread_initialize_manager): Suspend ourself + after sending __pthread_sig_debug to gdb instead of + __pthread_sig_cancel. + +1999-01-24 H.J. Lu <hjl@gnu.org> + + * manager.c (__pthread_manager): Delete __pthread_sig_debug + from mask if __pthread_sig_debug > 0. + (pthread_handle_create): Increment __pthread_handles_num. + + * manager.c (pthread_handle_create): Don't pass CLONE_PTRACE to clone. + * pthread.c (__pthread_initialize_manager): Likewise. + + * pthread.c (pthread_initialize): Use __libc_allocate_rtsig (1) + instead of __libc_allocate_rtsig (2). + (__pthread_initialize_manager): Send __pthread_sig_debug to gdb + instead of __pthread_sig_cancel. + (pthread_handle_sigdebug): Fix comments. + +1999-01-21 Ulrich Drepper <drepper@cygnus.com> + + * manager.c (pthread_allocate_stack): Set + __pthread_nonstandard_stacks if user-specified stack is used. + +1999-01-16 Ulrich Drepper <drepper@cygnus.com> + + * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _LFS_ASYNCHRONOUS_IO, + _LFS_LARGEFILE, _LFS64_LARGEFILE, and _LFS64_STDIO from Unix98. + +1999-01-07 Xavier Leroy <Xavier.Leroy@inria.fr> + + * pthread.c: Use a third signal __pthread_sig_debug distinct + from __pthread_sig_cancel to notify gdb when a thread is + created + * manager.c: Likewise. + * internals.h: Likewise. + * signals.c: The implementation of sigwait(s) assumed that + all signals in s have signal handlers already attached. + This is not required by the standard, so make it work + also if some of the signals have no handlers. + +1999-01-05 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> + + * linuxthreads.texi: Remove pointers from first @node. Move old + @node spec inside comment. + +1998-12-31 Ulrich Drepper <drepper@cygnus.com> + + * sysdeps/pthread/bits/stdio-lock.h: Define _IO_lock_lock and + _IO_lock_unlock. + +1998-12-29 Ulrich Drepper <drepper@cygnus.com> + + * semaphore.c (sem_trywait): Don't forget to unlock the semaphore + lock. Patch by Bernd Schmidt <crux@pool.informatik.rwth-aachen.de>. + +1998-12-21 Ulrich Drepper <drepper@cygnus.com> + + * manager.c: Threads now send __pthread_sig_cancel on termination. + Change clone call and signal masks. + * thread.c (pthread_handle_sigrestart): Remove special code for + manager. + (pthread_handle_sigcancel): In manager thread call + __pthread_manager_sighandler. + * sysdeps/i386/pt-machine.h (__compare_and_swap): Add memory clobber. + * sysdeps/i386/i686/pt-machine.h: Likewise. + Patches by Xavier Leroy. + +1998-12-14 Ulrich Drepper <drepper@cygnus.com> + + * spinlock.c (__pthread_unlock): Don't crash if called for an + untaken mutex. Reported by Ruslan V. Brushkoff <rus@Snif.Te.Net.UA>. + + * Examples/ex6.c: Unbuffer stdout and reduce sleep time to reduce + overall runtime. + +1998-12-13 Ulrich Drepper <drepper@cygnus.com> + + * Examples/ex3.c: Wait until all threads are started before + searching for the number to avoid race condition on very fast + systems. + +1998-12-08 Andreas Jaeger <aj@arthur.rh |