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glibc/linuxthreads/ChangeLog
Andreas Jaeger 6154bf4170 2000-01-06 Andreas Jaeger <aj@suse.de> 
* pthread.c: Correct last patch: Remove extra initializers.
2000-01-06 09:37:15 +00:00

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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.rhein-neckar.de>
* sysdeps/pthread/pthread.h: Remove __pthread_setcanceltype
declaration since it's not needed.
* sysdeps/pthread/pthread.h: Move internal functions to ...
* internals.h: ...here.
1998-12-02 H.J. Lu <hjl@gnu.org>
* pthread.c (__pthread_sig_restart): Initiliaze to 0 if
SIGRTMIN is defined.
(__pthread_sig_cancel): Likewise.
1998-12-01 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* wrapsyscall.c: Include <sys/mman.h> for msync,
<stdlib.h> for system and <termios.h> for tcdrain prototype.
Correct msync declaration.
1998-11-29 Roland McGrath <roland@baalperazim.frob.com>
* sysdeps/pthread/bits/libc-tsd.h (__libc_tsd_define, __libc_tsd_get,
__libc_tsd_set): New macros for new interface.
* no-tsd.c: New file, provide uninitialized defns of
__libc_internal_tsd_get and __libc_internal_tsd_set.
* Makefile (routines): Add no-tsd.
1998-10-12 Roland McGrath <roland@baalperazim.frob.com>
* internals.h: Include <bits/libc-tsd.h>, not <bits/libc-lock.h>.
* sysdeps/pthread/bits/libc-lock.h (__libc_internal_tsd_get,
__libc_internal_tsd_set): Move decls to ...
* sysdeps/pthread/bits/libc-tsd.h: New file for __libc_internal_tsd_*
declarations.
* sysdeps/pthread/bits/libc-lock.h (__libc_internal_tsd_get,
__libc_internal_tsd_set): Make these pointers to functions, not
functions; remove #pragma weak decls for them.
* specific.c (__libc_internal_tsd_get, __libc_internal_tsd_set):
Define static functions and initialized pointers to them.
1998-11-18 Ulrich Drepper <drepper@cygnus.com>
* Makefile (CFLAGS-mutex.c): Define as -D__NO_WEAK_PTHREAD_ALIASES.
(CFLAGS-specific.c): Likewise.
(CFLAGS-pthread.c): Likewise.
(CFLAGS-ptfork.c): Likewise.
(CFLAGS-cancel.c): Likewise.
* sysdeps/pthread/bits/libc-lock.h: Don't mark __pthread_* functions
as weak references if __NO_WEAK_PTHREAD_ALIASES is defined.
* mutex.c (pthread_mutex_init): Define as strong symbol.
(pthread_mutex_destroy): Likewise.
(pthread_mutex_trylock): Likewise.
(pthread_mutex_lock): Likewise.
(pthread_mutex_unlock): Likewise.
(pthread_mutexattr_init): Likewise.
(pthread_mutexattr_destroy): Likewise.
(pthread_once): Likewise.
* ptfork.c (pthread_atfork): Likewise.
* specific.c (pthread_key_create): Likewise.
(pthread_setspecific): Likewise.
(pthread_getspecific): Likewise.
1998-11-15 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
* linuxthreads.texi: Fix punctuation after xref.
1998-11-10 H.J. Lu <hjl@gnu.org>
* sysdeps/unix/sysv/linux/bits/local_lim.h: Undefine NR_OPEN
if it is defined in <linux/limits.h>.
1998-10-29 14:28 Ulrich Drepper <drepper@cygnus.com>
* spinlock.h (__pthread_trylock): Define inline.
(__pthread_lock): Add extra parameter to declaration. Declare
using internal_function.
(__pthread_unlock): Declare using internal_function.
* spinlock.c (__pthread_lock): Add new parameter. Use it instead
of local variable self. Avoid recomputing self. Define using
internal_function.
(__pthread_trylock): Remove.
(__pthread_unlock): Define using internal_function.
* cancel.c: Adjust for __pthread_lock interface change. Use already
computed self value is possible.
* condvar.c: Likewise.
* join.c: Likewise.
* manager.c: Likewise.
* mutex.c: Likewise.
* pthread.c: Likewise.
* rwlock.c: Likewise.
* semaphore.c: Likewise.
* signals.c: Likewise.
1998-10-27 13:46 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/pthread/pthread.h (struct _pthread_cleanup_buffer): Prepend
__ to field names of the struct.
* sysdeps/pthread/bits/pthreadtypes.h (struct _pthread_fastlock):
Likewise.
(pthread_attr_t): Likewise.
(pthread_cond_t): Likewise.
(pthread_condattr_t): Likewise.
(pthread_mutex_t): Likewise.
(pthread_mutexattr_t): Likewise.
(pthread_rwlock_t): Likewise.
(pthread_rwlockattr_t): Likewise.
* attr.c: Adjust for pthread.h and pthreadtypes.h change.
* cancel.c: Likewise.
* condvar.c: Likewise.
* manager.c: Likewise.
* mutex.c: Likewise.
* pthread.c: Likewise.
* ptlongjmp.c: Likewise.
* rwlock.c: Likewise.
* spinlock.c: Likewise.
1998-10-09 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/i386/pt-machine.h (get_eflags, set_eflags): Mark these
also with PT_EI.
* sysdeps/i386/i686/pt-machine.h: Remove unused inline
definitions.
* Makefile (libpthread-routines): Add pt-machine.
* pt-machine.c: New file.
* sysdeps/alpha/pt-machine.h: Define PT_EI as extern inline is not
yet defined. Use PT_EI in extern inline definitions.
* sysdeps/arm/pt-machine.h: Likewise.
* sysdeps/i386/pt-machine.h: Likewise.
* sysdeps/i386/i686/pt-machine.h: Likewise.
* sysdeps/m68k/pt-machine.h: Likewise.
* sysdeps/mips/pt-machine.h: Likewise.
* sysdeps/powerpc/pt-machine.h: Likewise.
* sysdeps/sparc/sparc32/pt-machine.h: Likewise.
* sysdeps/sparc/sparc64/pt-machine.h: Likewise.
1998-10-02 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* semaphore.h: Include <sys/types.h> so that _pthread_descr
is declared.
1998-09-15 David S. Miller <davem@pierdol.cobaltmicro.com>
* sysdeps/sparc/sparc32/pt-machine.h (INIT_THREAD_SELF): Add nr
argument.
* sysdeps/sparc/sparc64/pt-machine.h (INIT_THREAD_SELF): Likewise.
1998-09-12 14:24 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
* linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h: Add
multiple inclusion guard.
1998-09-02 11:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* signals.c (sigaction): Check that sig is less than NSIG to avoid
array index overflow.
1998-09-06 10:56 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/pthread/semaphore.h: New file.
1998-09-06 09:08 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/pthread/bits/libc-lock.h (enum __libc_tsd_key_t): Add
_LIBC_TSD_KEY_DL_ERROR.
1998-08-31 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/i386/i686/pt-machine.h (testandset): Add memory clobber.
* sysdeps/i386/pt-machine.h: Likewise.
Suggested by Roland McGrath.
1998-08-28 13:58 Ulrich Drepper <drepper@cygnus.com>
* internals.h: Also define THREAD_GETMEM_NC and THREAD_SETMEM_NC to
access thread data with non-constant offsets.
* specific.c: Use THREAD_GETMEM_NC and THREAD_SETMEM_NC where
necessary.
* sysdeps/i386/useldt.h: Fix typo. Add THREAD_GETMEM_NC and
THREAD_SETMEM_NC definitions.
* sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM_NC and
THREAD_SETMEM_NC.
* sysdeps/sparc/sparc64/pt-machine.h: Likewise.
1998-08-26 15:46 Ulrich Drepper <drepper@cygnus.com>
* internals.h: Define THREAD_GETMEM and THREAD_SETMEM to default if
not already defined.
(struct _pthread_descr_struct): Add p_self and p_nr field.
* manager.c (__pthread_handles): Define second element to point
to manager thread.
(__pthread_handles_num): Initialize to 2.
(__pthread_manager): Use INIT_THREAD_SELF with two arguments.
(pthread_start_thread): Likewise.
(pthread_handle_create): Start search for free slot at entry 2.
Initialize new fields p_self and p_nr.
Call __clone with CLONE_PTRACE if available.
(pthread_free): Call FREE_THREAD_SELF if available.
* pthread.c (__pthread_initial_thread): Initialize new fields.
(__pthread_manager_thread): Likewise.
(__pthread_initialize_manager): Call __clone with CLONE_PTRACE.
* cancel.c: Use THREAD_GETMEM and THREAD_SETMEM to access the
elements of the thread descriptor.
* condvar.c: Likewise.
* errno.c: Likewise.
* join.c: Likewise.
* manager.c: Likewise.
* pthread.c: Likewise.
* ptlongjmp.c: Likewise.
* semaphore.c: Likewise.
* signals.c: Likewise.
* specific.c: Likewise.
* spinlock.c: Likewise.
* sysdeps/alpha/pt-machine.h (INIT_THREAD_SELF): Add extra parameter.
* sysdeps/i386/useldt.h: New file.
* sysdeps/i386/i686/pt-machine.h: Show how to use this file.
* sysdeps/sparc/sparc32/pt-machine.h: Define THREAD_GETMEM and
THREAD_SETMEM using __thread_self.
* sysdeps/sparc/sparc64/pt-machine.h: Likewise.
1998-08-24 Geoff Keating <geoffk@ozemail.com.au>
* spinlock.c (__pthread_lock): Reset p_nextwaiting to NULL if it
turned out that we didn't need to queue after all.
1998-08-22 Geoff Keating <geoffk@ozemail.com.au>
* sysdeps/powerpc/pt-machine.h: Remove testandset, it's not used
and wastes space; correct types.
1998-08-08 11:18 H.J. Lu <hjl@gnu.org>
* signals.c (sigaction): Handle NULL argument.
1998-08-04 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/bits/sigthread.h: Use __sigset_t instead
of sigset_t.
1998-08-02 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makefile (linuxthreads-version): Extract correct number from
Banner.
1998-07-29 Xavier Leroy <Xavier.Leroy@inria.fr>
* Banner: Bump version number to 0.8
* FAQ.html: Many updates, in particular w.r.t. debugging.
* manager.c: Support for non-default stacksize for
LinuxThreads-allocated stacks;
don't use guard pages for stacks with default size, rely on
rlimit(RLIMIT_STACK) instead (it's cheaper).
* attr.c: Likewise.
* cancel.c: Use __pthread_sig_cancel and __pthread_sig_restart
everywhere instead of PTHREAD_SIG_CANCEL and PTHREAD_SIG_RESTART.
* condvar.c: Likewise.
* internals.h: Likewise.
* restart.h: Likewise.
* signals.c: Likewise.
* pthread.c: Likewise; set rlimit(RLIMIT_STACK) as we need it.
1998-07-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* weaks.c: Define pthread_mutexattr_[sg]ettype instead of
__pthread_mutexattr_[sg]ettype. Add more weak aliases.
* Versions: Put __pthread_mutexattr_settype under version
GLIBC_2.0. Don't export __pthread_mutexattr_setkind_np and
__pthread_mutexattr_gettype.
1998-07-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* sysdeps/pthread/bits/libc-lock.h: Make
__pthread_mutexattr_settype weak. Don't make
__pthread_mutexattr_setkind_np weak.
1998-07-16 10:52 Ulrich Drepper <drepper@cygnus.com>
* manager.c (pthread_handle_create): Check whether sched_setscheduler
call can succeed here.
* mutex.c: Define __pthread_mutexattr_settype and make
__pthread_mutexattr_setkind_np an alias.
Likewise for __pthread_mutexattr_gettype.
1998-07-15 11:00 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
* attr.c (pthread_attr_setschedpolicy): Don't check whether caller
is root.
1998-07-14 19:38 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/pthread/bits/libc-lock.h: Define __libc_cleanup_end.
1998-07-11 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* Examples/ex6.c: Include <unistd.h> for usleep.
1998-06-13 11:04 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Examples/ex4.c (main): Use exit, not pthread_exit.
1998-07-09 13:39 Ulrich Drepper <drepper@cygnus.com>
* Versions: Add __pthread_mutexattr_gettype and
__pthread_mutexattr_settype.
* lockfile.c: Use __pthread_mutexattr_settype instead of
__pthread_mutexattr_setkind_np.
* mutex.c: Define __pthread_mutexattr_gettype and
__pthread_mutexattr_settype.
* weak.c: Likewise.
* sysdeps/pthread/pthread.h: Declare __pthread_mutexattr_gettype and
__pthread_mutexattr_settype.
* sysdeps/pthread/bits/libc-lock.h (__libc_lock_init_recursive):
Use __pthread_mutexattr_settype.
1998-07-08 22:26 Ulrich Drepper <drepper@cygnus.com>
* Versions: Add pthread_mutexattr_gettype, pthread_mutexattr_settype.
* mutex.c: Define weak alias pthread_mutexattr_gettype and
pthread_mutexattr_settype.
* sysdeps/pthread/pthread.h: Declare these functions.
Move pthread_sigmask and pthread_kill declaration in separate header.
* sysdeps/unix/sysv/linux/bits/sigthread.h: New file.
1998-07-07 15:20 Ulrich Drepper <drepper@cygnus.com>
* Makefile: Add rules to compile and run tests.
* Examples/ex1.c: Little changes to fix warnings.
* Examples/ex2.c: Likewise.
* Examples/ex3.c: Likewise.
* Examples/ex4.c: Likewise.
* Examples/ex5.c: Likewise.
* Examples/ex6.c: New file.
1998-07-05 11:54 Ulrich Drepper <drepper@cygnus.com>
* Versions: Add pthread_attr_init to GLIBC_2.1 version in libc.
1998-07-01 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* attr.c: Include <string.h>.
1998-06-30 11:47 Ulrich Drepper <drepper@cygnus.com>
* attr.c: Include errno.h. Use memcpy to copy sched_param.
* internals.h: Include limits.h.
* manager.c: Use memcpy to copy sched_param.
* ptfork.c: Include errno.h.
* pthread.c: Likewise.
* semaphore.c: Likewise.
* specific.c: Likewise.
* spinlock.h: Likewise.
* sysdeps/pthread/pthread.h: Include only allowed headers. Move
type definition to ...
* sysdeps/pthread/bits/pthreadtypes.h: ...here. New file.
1998-06-29 12:34 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/pthread/pthread.h: Use __PMT not __P for function pointers.
* sysdeps/pthread/pthread.h: Define various PTHREAD_* symbols also
as macros as demanded in POSIX.1, Annex C.
1998-06-29 12:29 Ulrich Drepper <drepper@cygnus.com>
* internals.h (struct pthread_request): For free use pthread_t
instead of pthread_descr.
* join.c (pthread_join): Pass thread_id, not th to manager.
(pthread_detach): Likewise.
* manager.c (__pthread_manager): Except thread ID in FREE_REQ case.
(pthread_exited): Remove detached queue code.
(pthread_handle_free): Expect thread ID parameter and use it to
validate the thread decsriptor. Don't use detached queue.
Patches by Xavier Leroy.
1998-06-27 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libpthread.map: Export accept, longjmp, sigaction, siglongjmp,
_IO_flockfile, _IO_ftrylockfile, _IO_funlockfile,
__pthread_atfork, __pthread_key_create, __pthread_once.
* internals.h: Doc fix.
* pthread.c (__pthread_initialize): Define again.
1998-06-26 Ulrich Drepper <drepper@cygnus.com>
* manager.c (pthread_exited): If thread is not detached put it on
special list.
(pthread_handle_free): If thread is not on list with living threads
search on list with detached threads.
* sysdeps/pthread/pthread.h (PTHREAD_RWLOCK_INITIALIZER): Correct
for new definition of pthread_rwlock_t.
* spinlock.c: Correct test whether to compile
__pthread_compare_and_swap or not.
1998-06-25 19:27 Ulrich Drepper <drepper@cygnus.com>
* attr.c: Finish user stack support. Change locking code to be safe
in situations with different priorities.
* cancel.c: Likewise.
* condvar.c: Likewise.
* internals.h: Likewise.
* join.c: Likewise.
* manager.c: Likewise.
* mutex.c: Likewise.
* pthread.c: Likewise.
* ptlongjmp.c: Likewise.
* queue.h: Likewise.
* rwlock.c: Likewise.
* semaphore.c: Likewise.
* semaphore.h: Likewise.
* signals.c: Likewise.
* spinlock.c: Likewise.
* spinlock.h: Likewise.
* sysdeps/pthread/pthread.h: Likewise.
Patches by Xavier Leroy.
* sysdeps/i386/i686/pt-machine.h: New file.
1998-06-25 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/pthread/pthread.h: Make [sg]et_stacksize and
[sg]et_stackaddr prototypes always available.
* sysdeps/unix/sysv/linux/bits/posix_opt.h: Define
_POSIX_THREAD_ATTR_STACKSIZE and _POSIX_THREAD_ATTR_STACKADDR.
1998-06-24 Ulrich Drepper <drepper@cygnus.com>
* manager.c (pthread_free): Undo patch from 980430.
Reported by David Wragg <dpw@doc.ic.ac.uk>.
1998-06-09 15:07 Ulrich Drepper <drepper@cygnus.com>
* manager.c: Define __pthread_manager_adjust_prio and use it to
increase priority when needed.
* internals.h: Add prototype for __pthread_manager_adjust_prio.
* mutex.c: Optimize mutexes to wake up only one thread.
* pthread.c: Move PID of manager for global variable in structure
element.
Patches by Xavier Leroy.
1998-06-07 13:47 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/pthread/bits/libc-lock.h: Optimize cleanup handlers a bit.
1998-06-03 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* attr.c: Correct typo.
1998-05-01 Ulrich Drepper <drepper@cygnus.com>
* manager.c (pthread_free): Unmap guard before the stack.
Patch by Matthias Urlichs.
1998-04-30 Ulrich Drepper <drepper@cygnus.com>
* manager.c (pthread_free): Detect already free child.
Patch by Xavier Leroy, reported by Matthias Urlichs.
1998-04-23 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makefile (linuxthreads-version): Renamed back from
libpthread-version.
1998-04-21 Ulrich Drepper <drepper@cygnus.com>
* ptlongjmp.c: Add prototypes for __libc_siglongjmp and
__libc_longjmp.
1998-04-20 14:55 Ulrich Drepper <drepper@cygnus.com>
* Makefile (libpthread-routines): Add ptlongjmp and spinlock.
* internals.h: Add definitions for new spinlock implementation.
* ptlongjmp.c: New file.
* spinlock.c: New file.
* spinlock.h (acquire): Don't reschedule using __sched_yield, use
new function __pthread_acquire to prevent deadlocks with thread
with different priorities.
Patches by Xavier Leroy <Xavier.Leroy@inria.fr>.
1998-03-16 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* manager.c (__pthread_manager): Reduce first argument to select
to include just the needed file descriptor.
1998-03-17 00:06 Ulrich Drepper <drepper@cygnus.com>
* manager.c: Fix last patch which caused core dumps.
* pthread.c: Correctly handle missing SIGRTMIN.
1998-03-15 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* libpthread.map: Add __libc_internal_tsd_get and
__libc_internal_tsd_set. Add missing cancelable functions. Export
libc internal versions of the cancelable functions.
1998-03-13 16:51 Ulrich Drepper <drepper@cygnus.com>
* weaks.c: Define pthread_attr_init as GLIBC_2.0 and GLIBC_2.1.
1998-03-13 00:46 Ulrich Drepper <drepper@cygnus.com>
* attr.c: Implement pthread_attr_[gs]etguardsize,
pthread_attr_[gs]setstackaddr, pthread_attr_[gs]etstacksize.
Change pthread_attr_init to have two interfaces.
* internals.h (struct _pthread_descr_struct): Add new fields for
above functions.
* libpthread.map: Add names in GLIBC_2.1 section.
* manager.c (pthread_handle_create): Implement guardsize and
user stack.
(pthread_free): Likewise.
* pthread.c (pthread_create): Add new interface for changed
pthread_attr_t.
* sysdeps/pthread/pthread.h: Add prototypes for new functions.
* sysdeps/unix/sysv/linux/bits/local_lim.h: Add definition of
PTHREAD_STACK_MIN.
1998-03-11 00:42 Wolfram Gloger <wmglo@dent.med.uni-muenchen.de>
* manager.c: Enable resetting of the thread scheduling policy
to SCHED_OTHER when the parent thread has a different one.
1998-02-01 13:51 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/unix/sysv/linux/bits/posix_opt.h: Define
_POSIX_ASYNCHRONOUS_IO.
* sysdeps/pthread/pthread.h: Define bits for Unix98 variants of
mutexes.
* mutex.c: Implement new mutex types.
* internals.h: Include <signal.h>.
* libpthread.map: Add __erno_location and __h_errno_location.
* errno.c: Return pointer to variable actually in use. This might
not be the one in the thread structure.
* internals.h (struct _pthread_descr_struct): Add new fields p_errnop
and p_h_errnop.
* manager.c (__pthread_manager): Set p_errnop and p_h_errnop member
of manager thread structure.
(pthread_handle_create): Set p_errnop and p_h_errnop members for new
thread.
* pthread.c: Adapt initializer for thread structures.
(__pthread_initial_thread): Set p_errnop and p_h_errnop member.
(__pthread_reset_main_thread): Reset p_errnop and p_h_errnop of
current thread to global variables.
1998-01-31 17:27 Ulrich Drepper <drepper@cygnus.com>
* rwlock.c: New file.
* Makefile (libpthread-routines): Add rwlock.
* sysdeps/pthread/pthread.h: Define data structures and declare
functions.
* libpthread.map: Add new functions.
1997-12-18 13:50 Philip Blundell <pb@nexus.co.uk>
* sysdeps/arm/pt-machine.h: New file; add ARM support.
* sysdeps/arm/Implies: likewise.
* README: Document it.
1997-12-13 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* signals.c: Remove unneeded initializer for sigwaited, saving a
warning.
1997-04-11 01:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* semaphore.c (sem_init): Set sem_spinlock only if available.
1997-12-04 01:48 Ulrich Drepper <drepper@cygnus.com>
* mutex.c: Implement PTHREAD_MUTEX_CHECKERROR.
* sysdeps/pthread/pthread.h: Define PTHREAD_MUTEX_CHECKERROR.
* Makefile: Update from LinuxThreads 0.7.
* internals.h. Likewise.
* manager.c: Likewise.
* mutex.c: Likewise.
* pthread.c: Likewise.
* signals.c: Likewise.
* specific.c: Likewise.
* Examples/ex3.c: Likewise.
1997-11-20 18:13 Ulrich Drepper <drepper@cygnus.com>
* pthread.c (__pthread_reset_main_thread): Close pipe only if still
open.
1997-10-29 05:38 Ulrich Drepper <drepper@cygnus.com>
* wrapsyscall.c: Add socket functions which are also cancelation
points.
1997-10-19 21:40 Wolfram Gloger <wg@wolfram.dent.med.uni-muenchen.de>
* specific.c (__libc_internal_tsd_set, __libc_internal_tsd_get):
New functions for fast thread specific data within libc.
* internals.h: Add new array p_libc_specific to struct
_pthread_descr_struct.
* sysdeps/pthread/bits/libc-lock.h: Declare new functions.
1997-10-13 05:39 Ulrich Drepper <drepper@cygnus.com>
* semaphore.h: Add __BEGIN_DECLS/__END_DECLS.
Reported by Ralf Corsepius <corsepiu@faw.uni-ulm.de>.
1997-08-29 03:05 Ulrich Drepper <drepper@cygnus.com>
* internals.h (struct _pthread_descr_struct): Add definitions for
two-level specific key handling.
* manager.c (pthread_handle_create): Initialize specific memory array.
* specific.c: Implement two-level key handling.
* weaks.c: Don't provide dummy key handling.
* sysdeps/pthread/bits/libc-lock.h: Typedef __libc_lock_t (no #define).
Add definition of __libc_key_t.
* sysdeps/unix/sysv/linux/bits/local_lim.h: Define PTHREAD_KEYS_MAX
as 1024.
Add definition of _POSIX_THREAD_DESTRUCTOR_ITERATIONS and
PTHREAD_DESTRUCTOR_ITERATIONS.
* manager.c (pthread_handle_create): Compare mmap result with
MAP_FAILED.
* ptfork.c: Rename to __pthread_atfork and make old name a weak alias.
* sysdeps/pthread/bits/pthread.h: Add prototype for __pthread_atfork.
1997-08-22 19:04 Richard Henderson <rth@cygnus.com>
sysdeps/sparc -> sysdeps/sparc/sparc32
sysdeps/sparc64 -> sysdeps/sparc/sparc64
* internals.h: Change definition of THREAD_SELF to be an expression,
not a statement that did a return.
* sysdeps/alpha/pt-machine.h (THREAD_SELF): Update accordingly.
* sysdeps/sparc/sparc32/pt-machine.h (THREAD_SELF, INIT_THREAD_SELF):
Follow Solaris and use a "system reserved" register (%g6) to hold
the thread descriptor.
* sysdeps/sparc/sparc64/pt-machine.h: Likewise.
1997-08-03 00:09 Ulrich Drepper <drepper@cygnus.com>
* mutex.c: Correct pthread_once. Patch by Xavier Leroy.
* sysdeps/pthread/pthread.h: Add prototype for __pthread_once.
* sysdeps/pthread/bits/pthread.h: Add macros for __libc_once.
* semaphore.c: Include spinlock.h only when needed.
* specific.c (__pthread_setsepcific, __pthread_getspecific): Reject
keys for entries not in use.
* weaks.c: Implement key handling functions for real.
1997-06-29 01:04 Richard Henderson <richard@gnu.ai.mit.edu>
Initial sparc64-linux support:
* linuxthreads/sysdeps/sparc64/Implies: New file.
* linuxthreads/sysdeps/sparc64/pt-machine.h: Likewise.
1997-06-29 00:48 Ulrich Drepper <drepper@cygnus.com>
* semaphore.c: Include spinlock.h at correct place.
Patch by HJ Lu.
1997-06-13 10:06 Richard Henderson <rth@tamu.edu>
The Great Bit File Move:
* sysdeps/alpha/semaphorebits.h: -> .../bits/semaphore.h.
* sysdeps/powerpc/semaphorebits.h: Likewise.
* sysdeps/pthread/cmpxchg/semaphorebits.h: Likewise.
* sysdeps/pthread/no-cmpxchg/semaphorebits.h: Likewise.
* sysdeps/pthread/libc-lock.h: -> bits/
* sysdeps/pthread/stdio-lock.h: Likewise.
* sysdeps/unix/sysv/linux/local_lim.h: Likewise.
* sysdeps/unix/sysv/linux/posix_opt.h: Likewise.
* semaphore.h: Likewise.
* sysdeps/pthread/pthread.h: Likewise.
* lockfile.c: <foo.h> -> <bits/foo.h>.
* semaphore.h: Likewise.
* Makefile: (headers): foo.h -> bits/foo.h.
* sysdeps/pthread/Makefile: Likewise.
1997-04-11 01:18 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* semaphore.c (sem_init): Set sem_spinlock only if available.
* sysdeps/m68k/pt-machine.h (testandset, __compare_and_swap): Fix
asm constraints.
1997-04-09 03:00 Ulrich Drepper <drepper@cygnus.com>
Update from LinuxThreads 0.6.
* attr.c (pthread_attr_getdetachstate): Use __sched_get_priority_max
and __sched_get_priority_min instead of names without `__'.
* manager.c: Rewrite large parts to implement opaque pthread_t.
* cancel.c: Adapt for opaque pthread_t type.
* condvar.c: Likewise.
* errno.c: Likewise.
* join.c: Likewise.
* mutex.c: Likewise.
* pthread.c: Likewise.
* signals.c: Likewise.
* specific.c: Likewise.
* restart.h: Likewise.
* queue.h: Likewise.
* Examples/ex3.c: Likewise.
* Examples/ex4.c: Likewise.
* sysdeps/pthread/pthread.h: Likewise.
* pthread.c: Accumulate time for all threads in thread manager.
* semaphore.c: Implement fallback implementation for architectures
sometimes missing compare-exchange operations.
* cancel.c (pthread_cancel): Validate handle argument.
* join.c (pthread_join): Likewise.
(pthread_detach): Likewise.
* signals.c (pthread_kill): Likewise.
* spinlock.h (acquire): Use __sched_yield not sched_yield.
* queue.h (enqueue): Enqueue thread according to priority.
* internals.c (struct pthread_start_args): New struct for passing
args to cloning function.
(struct _pthread): Rename to _pthread_descr_struct and adapt for
opaque pthread_t.
* Examples/Makefile (clean): Pass -f option to rm.
* sysdeps/i386/pt-machine.h: Add check for compare-exchange instruction
and define TEST_FOR_COMPARE_AND_SWAP.
* sysdeps/i386/i486/pt-machine.h: Removed.
* sysdeps/unix/sysv/linux/local_lim.h (PTHREAD_THREADS_MAX): Increase
to 1024.
1997-04-04 16:38 Ulrich Drepper <drepper@cygnus.com>
* restart.h (suspend): Clear p_signal before suspending.
(suspend_with_cancellation): Likewise.
Patch by Xavier Leroy <Xavier.Leroy@inria.fr>.
* weaks.c: Make __pthread_key_create return 1.
* sysdeps/pthread/libc-lock.h: Define __libc_key_create,
__libc_getspecific, __libc_setspecific, and __libc_key_t.
* sysdeps/pthread/stdio-lock.h: Don't care for implementation not
using libio.
1997-03-19 15:13 Miguel de Icaza <miguel@nuclecu.unam.mx>
* sysdeps/sparc/pt-machine (RELEASE): Fix.
1997-03-01 07:55 Geoff Keating <geoffk@ozemail.com.au>
* sysdeps/powerpc/Implies: Added.
* sysdeps/powerpc/pt-machine.h: Added.
* sysdeps/powerpc/semaphorebits.h: Added.
1997-01-22 01:22 Ulrich Drepper <drepper@cygnus.com>
* linuxtheads/pthread.c (__pthread_initial_thread): Correct
initializer.
(__pthread_manager_thread): Likewise.
Reported by Andreas Jaeger.
1997-01-18 22:15 Richard Henderson <rth@tamu.edu>
Since sigset_t no longer fits in a register, we can't pass in the
thread's initial mask so easily. Take this opportunity to simplify
the clone implementation by only accepting a single void* argument.
* linuxthreads/manager.c (__pthread_manager): Put thread vitals
in the thread struct instead of as arguments through clone.
(pthread_start_thread): Look for them there.
* linuxthreads/internals.h (struct _pthread): Add p_initial_fn,
p_initial_fn_arg, p_initial_mask. Fix __pthread_manager proto.
* linuxthreads/pthread.c (pthread_initialize_manager): Revise
clone invocation.
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