[glibc.git] / linuxthreads / ChangeLog

2000-06-21  Andreas Jaeger  <aj@suse.de>

        * sysdeps/pthread/timer_routines.c: Include <stdlib.h> for memset
        prototype.

        * join.c: Include <stdlib.h> for exit prototype.

2000-06-20  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/i386/useldt.h: Include <stdlib.h>.

        * sysdeps/unix/sysv/linux/bits/posix_opt.h: Define _POSIX_BARRIERS.
        * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.

        * Makefile (libpthread-routines): Add barrier.
        (tests): Add ex9.  Add rule to build ex9.
        * Versions: Export barrier functions.
        * barrier.c: New file.
        * Examples/ex9.c: New file.
        * sysdeps/pthread/pthread.h: Add barrier data types and declarations.
        * sysdeps/pthread/bits/pthreadtypes.h: Likewise.
        Patch by Kaz Kylheku <kaz@ashi.footprints.net>.

2000-06-19  H.J. Lu  <hjl@gnu.org>

        * spinlock.h (HAS_COMPARE_AND_SWAP): Defined if
        HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS is defined.
        (compare_and_swap_with_release_semantics): New. Default to
        compare_and_swap if HAS_COMPARE_AND_SWAP_WITH_RELEASE_SEMANTICS
        is not defined.

        * spinlock.c (__pthread_unlock): Call
        compare_and_swap_with_release_semantics () instead of
        compare_and_swap ().

2000-06-19  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/pthread/timer_create.c: Use _set_errno instead of assigning
        to errno directly.
        * sysdeps/pthread/timer_delete.c: Likewise.
        * sysdeps/pthread/timer_getoverr.c: Likewise.
        * sysdeps/pthread/timer_gettime.c: Likewise.
        * sysdeps/pthread/timer_settime.c: Likewise.

2000-06-13  Kaz Kylheku  <kaz@ashi.footprints.net>

        Timer nodes are now reference counted, and can be marked
        as deleted. This allows for the safe release of the global mutex
        in the middle without losing the timer being operated on.

        * sysdeps/pthread/posix-timer.h (struct timer_node):  The inuse
        member is now an enum with three values, so that an intermediate
        state can be represented (deleted but not free for reuse yet).
        New refcount member added.
        * sysdeps/pthread/timer_routines.c: Likewise.

        * sysdeps/pthread/posix-timer.h (timer_addref, timer_delref,
        timer_valid): New inline functions added.

        * sysdeps/pthread/timer_gettime.c (timer_gettime): Function
        restructured, recursive deadlock bug fixed.

        * sysdeps/pthread/timer_gettime.c (timer_gettime): Uses new
        timer_addref to ensure that timer won't be deleted while mutex is not
        held. Also uses timer_invalid to perform validation of timer handle.
        * sysdeps/pthread/timer_settime.c (timer_settime): Likewise.
        * sysdeps/pthread/timer_getoverr.c (timer_getoverrun): Likewise.

2000-06-14  Ulrich Drepper  <drepper@redhat.com>

        * shlib-versions: Add entry for SH.
        Patch by Kaz Kojima <kkojima@rr.iij4u.or.jp>.

2000-06-13  Kaz Kylheku  <kaz@ashi.footprints.net>

        A few optimizations.  Got rid of unnecessary wakeups of timer threads,
        tightened up some critical regions and micro-optimized some list
        manipulation code.

        * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer):
        Returns int value now to indicate whether timer was queued at head.
        * sysdeps/pthread/posix-timer.h: Likewise.
        * sysdeps/pthread/timer_settime.c (timer_settime): Takes advantage of
        new return value from __timer_thread_queue_timer to avoid waking
        up timer thread unnecessarily.

        * sysdeps/pthread/posix-timer.h (timer_id2ptr): No longer checks
        inuse flag, because this requires mutex to be held.  Callers updated
        to do the check when they have the mutex.
        * sysdeps/pthread/timer_getoverr.c: Add check for inuse here.

        * sysdeps/pthread/timer_settime.c (timer_settime): Tighter critical
        regions: avoids making system calls while holding timer mutex, and
        a few computations were moved outside of the mutex as well.
        * sysdeps/pthread/timer_gettime.c (timer_gettime): Likewise.

        * sysdeps/pthread/posix-timer.h (list_unlink_ip): Function name changed
        to list_unlink_ip, meaning idempotent.  Pointer manipulation
        changed to get better better code out of gcc.
        * sysdeps/pthread/timer_routines.c (list_unlink): Non-idempotent
        version of list_unlink added here.
        * sysdeps/pthread/timer_delete.c: Use appropriate list unlink
        function in all places: idempotent one for timers, non-idempotent
        one for thread nodes.
        * sysdeps/pthread/timer_settime: Likewise.
        * sysdeps/pthread/timer_routines.c: Likewise.

2000-06-13  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_TIMERS): Define.
        * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.

        * sysdeps/pthread/Makefile: Remove tests definition.

2000-06-12  Kazumoto Kojima  <kkojima@rr.iij4u.or.jp>
            Yutaka Niibe  <gniibe@chroot.org>

        * sysdeps/sh/pspinlock.c: New file.
        * sysdeps/sh/pt-machine.h: New file.

2000-06-12  Ulrich Drepper  <drepper@redhat.com>

        * Makefile (tests): Add joinrace.

        * Examples/ex6.c: Test return value of pthread_join.

2000-06-11  Geoff Keating  <geoffk@cygnus.com>

        * sysdeps/powerpc/pspinlock.c (__pthread_spin_lock): Implement.
        (__pthread_spin_trylock): Implement.
        (__pthread_spin_unlock): Implement.
        (__pthread_spin_init): Implement.
        (__pthread_spin_destroy): Implement.

2000-06-10  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/pthread/timer_routines.c (list_append): Little fix to
        really append the entry.

2000-06-10  Andreas Jaeger  <aj@suse.de>

        * lockfile.c (__fresetlockfiles): Remove unused variable fp.

2000-06-10  Kaz Kylheku  <kaz@ashi.footprints.net>

        * sysdeps/pthread/timer_create.c: Thread matching now done on
        clock type as well as thread attributes.
        There are individual global signal-delivering threads for
        different clock types.
        * sysdeps/pthread/posix-timer.h: Likewise.
        * sysdeps/pthread/timer_routines.c: Likewise.

        * sysdeps/pthread/timer_routines.c: Thread allocation and
        deallocation function now remembers to put thread on active
        list and remove from active list.
        Thus now the feature of binding multiple timers
        to a single thread actually works.

2000-06-10  Ulrich Drepper  <drepper@redhat.com>

        * pthread.c (__pthread_create_2_1): Optimize a bit.

        * internals.h (invalid_handle): Also test for p_terminated != 0.
        (nonexisting_handle): New function.  Same as old invalid_handle.
        * join.c (pthread_join): Use nonexisting_handle instead of
        invalid_handle to test for acceptable thread handle.
        * manager.c (pthread_handle_free): Likewise.
        * joinrace.c: New file.
        Reported by Permaine Cheung <pcheung@cygnus.com>.

2000-06-08  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer):
        Correct handling of matching variable.

        * sysdeps/pthread/tst-timer.c (main): Rewrite initializers to
        avoid warnings.

        * sysdeps/pthread/timer_routines.c (__timer_thread_queue_timer):
        Be prepared for empty timer list.

        * sysdeps/pthread/timer_create.c (timer_create): Correct names of
        CPUTIME clock ID.  Add support for thread clocks.

        * sysdeps/pthread/posix-timer.h (timer_ptr2id): Operands in
        subtraction were switched.

        * sysdeps/pthread/timer_routines.c (init_module): Use
        THREAD_MAXNODES threads.

        * sysdeps/pthread/posix-timer.h (struct timer_node): Add creator_pid.
        * sysdeps/pthread/timer_create.c: Fill in creator_pid.
        * sysdeps/pthread/timer_routines.c (thread_expire_timer): Send signal
        with sigqueueinfo is this system call is available.

        * sysdeps/pthread/timer_create.c (timer_create): Allow
        CLOCK_CPUTIME if _POSIX_CPUTIME is defined.

        * sysdeps/pthread/Makefile: New file.  Add rules to build timer
        functionality.
        * sysdeps/unix/sysv/linux/bits/local_lim.h: Add TIMER_MAX.

2000-06-04  Kaz Kylheku  <kaz@ashi.footprints.net>

        * sysdeps/pthread/posix-timer.h: New file.
        * sysdeps/pthread/timer_create.c: New file.
        * sysdeps/pthread/timer_delete.c: New file.
        * sysdeps/pthread/timer_getoverr.c: New file.
        * sysdeps/pthread/timer_gettime.c: New file.
        * sysdeps/pthread/timer_routines.c: New file.
        * sysdeps/pthread/timer_settime.c: New file.
        * sysdeps/pthread/tst-timer.c: New file.

2000-06-08  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/unix/sysv/linux/bits/local_lim.h: Remove OPEN_MAX and
        LINK_MAX definitions if necessary.

2000-06-04  Kaz Kylheku  <kaz@ashi.footprints.net>

        Added missing fork time handling of global libio lock.

        * lockfile.c (__fresetlockfiles): Now also resets the list lock,
        not just the individual stream locks. Rewritten to use new
        iterator interface provided by libio rather than accessing
        global variable.

        * lockfile.c (__flockfilelist, _funlockfilelist): New functions
        which lock and unlock the stream list using the new interface
        provied by libio.
        * internals.h: Likewise.

        * ptfork.c (__fork): Now calls __flockfilelist before fork,
        and __funlockfilelist in the parent after the fork.
        Child still calls __fresetlockfiles as before.

        * linuxthreads.texi: Now explains what happens to streams at
        fork time. Also whole new section on forking and thread added.
        Definition of pthread_atfork moved out of Miscellaneous Functions
        to this new section.

2000-06-04  Jakub Jelinek  <jakub@redhat.com>

        * sysdeps/sparc/sparc32/sparcv9/pspinlock.c (__pthread_spin_lock):
        Add missing register.
        * sysdeps/sparc/sparc64/pspinlock.c (__pthread_spin_lock): Likewise.

2000-06-02  Jakub Jelinek  <jakub@redhat.com>

        * sysdeps/sparc/sparc32/pspinlock.c: Implement spinlocks.
        * sysdeps/sparc/sparc32/sparcv9/pspinlock.c: New.
        * sysdeps/sparc/sparc64/pspinlock.c: Implement spinlocks.

2000-05-31  Andreas Jaeger  <aj@suse.de>

        * sysdeps/mips/pspinlock.c: Implement spinlocks.

2000-05-28  Ulrich Drepper  <drepper@redhat.com>

        * spinlock.c (__pthread_lock): Remove ASSERT.

        * Makefile (tests): Add ex8.
        * Examples/ex8.c: New file.

2000-05-12  Kaz Kylheku  <kaz@ashi.footprints.net>

        Bugfix: The pthread_atfork mechanism now takes care of its
        own internal mutex at fork time.

        * ptfork.c (__fork): Revised so that the mutex is held across
        the fork operation and while the handlers are called, and so that
        the child resets the mutex.

        * linuxthreads.texi: Updated pthread_atfork documentation to make
        it clear that fork and pthread_atfork can't be reentered from
        atfork handlers, that pthread_atfork and fork are mutually atomic,
        and that the handlers are inherited by the child process.

2000-05-24  Ulrich Drepper  <drepper@redhat.com>

        * Makefile (libpthread-routines): Add pspinlock.
        * cancel.c: Rename __pthread_spin_unlock back to __pthread_unlock.
        Use struct _pthread_fastlock instead of pthread_spinlock_t.
        * condvar.c: Likewise.
        * internals.h: Likewise.
        * join.c: Likewise.
        * manager.c: Likewise.
        * mutex.c: Likewise.
        * pthread.c: Likewise.
        * rwlock.c: Likewise.
        * semaphore.c: Likewise.
        * signals.c: Likewise.
        * spinlock.h: Likewise.
        * spinlock.c: Likewise.  Remove pthread_spin_lock functions.
        * sysdeps/alpha/pspinlock.c: New file.
        * sysdeps/arm/pspinlock.c: New file.
        * sysdeps/i386/pspinlock.c: New file.
        * sysdeps/m68k/pspinlock.c: New file.
        * sysdeps/mips/pspinlock.c: New file.
        * sysdeps/powerpc/pspinlock.c: New file.
        * sysdeps/sparc/sparc32/pspinlock.c: New file.
        * sysdeps/sparc/sparc64/pspinlock.c: New file.
        * sysdeps/pthread/bits/pthreadtypes.h: Remove pthread_spinlock_t
        back to _pthread_fastlock.  Define new pthread_spinlock_t.

2000-05-24  Andreas Jaeger  <aj@suse.de>

        * sysdeps/i386/i686/pt-machine.h: Only use LDT on newer kernels.

2000-05-21  Jakub Jelinek  <jakub@redhat.com>

        * manager.c (pthread_handle_create): Initialize p_res._sock to -1.

2000-05-13  Jakub Jelinek  <jakub@redhat.com>

        * internals.h (__RES_PTHREAD_INTERNAL): Define.

2000-05-06  Kaz Kylheku  <kaz@ashi.footprints.net>

        * mutex.c (pthread_once): IN_PROGRESS state of pthread_once_t
        object state is represented with additional bits which distinguish
        whether that state was set up in the current process, or
        in an ancestor process. If that state was set in an ancestor,
        it means that a fork happened while thread was executing the init
        function. In that case, the state is reset to NEVER.
        * mutex.c (__pthread_once_fork_prepare): New function.
        (__pthread_once_fork_child): Likewise
        (__pthread_once_fork_parent): Likewise
        (__pthread_reset_pthread_once): Removed.
        * ptfork.c (__fork): Call new handlers in mutex.c.
        * internals.h: Declarations of new mutex.c functions added.
        Declaration of removed function deleted.
        * linuxthreads.texi: Updated documentation about pthread_once
        to clarify what happens under cancellation and forking.

2000-05-06  Kaz Kylheku  <kaz@ashi.footprints.net>

        * internals.h: New thread manager request type, REQ_KICK.
        * join.c (pthread_exit): main thread now calls exit() instead
        of _exit() in order to proper process cleanup.
        * manager.c (__pthread_manager): Do not terminate manager
        after unblocking main thread; wait for main thread's
        REQ_PROCESS_EXIT request instead.
        Also, added REQ_KICK case to handle new request; this just does
        nothing.
        * manager.c (pthread_exited): Do not terminate manager after
        unblocking main thread.
        * manager.c (__pthread_manager_sighandler): If the main thread
        is waiting for all other threads to die, send a REQ_KICK into
        the thread manager request pipe to get it to clean out the threads
        and unblock the main thread as soon as possible. This fixes
        the 2000 millisecond hang on shutdown bug.
        * Examples/ex7.c: New file, tests shutdown behavior when all threads
        including the main one call pthread_exit(), or implicitly do so.
        * Makefile (tests): Add ex7.

2000-05-05  Andreas Jaeger  <aj@suse.de>

        * sysdeps/unix/sysv/linux/i386/getcpuclockid.c
        (pthread_getcpuclockid): Correct test for ourselves.

2000-05-05  Ulrich Drepper  <drepper@redhat.com>

        * internals.h (struct _pthread_descr_struct): Reorganization.
        Allocate room for 16 pointers at head of the structure for future
        thread-local data handling.  Move p_self member in this area.
        * manager.c (pthread_handle_create): Adjust use of p_self.
        * sysdeps/i386/useldt.h (THREAD_SELF): Likewise.
        * pthread.c (__pthread_initial_thread): Adjust initialization.
        (__pthread_manager_thread): Likewise.

2000-04-29  Bruno Haible  <haible@clisp.cons.org>

        * join.c (pthread_exit): Use THREAD_GETMEM_NC instead of THREAD_GETMEM
        for eventmask larger than 1 word.

2000-04-27  Ulrich Drepper  <drepper@redhat.com>

        * Versions [libpthread] (GLIBC_2.2): Add __pthread_initialize_minimal.
        * pthread.c (__pthread_initialize_minimal): New function.  Perform
        minimal initialization.
        (pthread_initialize): Remove this code here.
        * sysdeps/i386/i686/pt-machine.h: Include "../useldt.h" again.  We
        are working around the problem in glibc.

2000-04-25  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/i386/i686/pt-machine.h: Do not use "../useldt.h" for
        now.  First gcc must be fixed (more concrete: libgcc).

2000-04-24  Ulrich Drepper  <drepper@redhat.com>

        * pthread.c: Remove special treatement for interrupt handlers on x86.
        * manager.c (pthread_free): Use FREE_THREAD not FREE_THREAD_SELF.
        * sysdeps/i386/useldt.h: Use "q" constraint instead of "r" where
        necessary.
        * sysdeps/i386/i686/pt-machine.h: Include "../useldt.h".

2000-04-24  Mark Kettenis  <kettenis@gnu.org>

        * join.c (pthread_exit): Set p_terminated after reporting the
        termination event instead of before.

2000-04-20  Jakub Jelinek  <jakub@redhat.com>

        * sysdeps/pthread/bits/libc-lock.h: Only declare __pthread_rwlock_*
        if __USE_UNIX98.

2000-04-18  Andreas Jaeger  <aj@suse.de>

        * Versions: Use ld instead of ld.so.

2000-04-18  Jakub Jelinek  <jakub@redhat.com>

        * sysdeps/unix/sysv/linux/sparc/bits/sigcontext.h (struct sigcontext):
        Remove the typedef keyword.

2000-04-18  Jakub Jelinek  <jakub@redhat.com>

        * sysdeps/sparc/sparc64/pt-machine.h (MEMORY_BARRIER): Use membar,
        not stbar.
        (READ_MEMORY_BARRIER): Define.
        * spinlock.c (__pthread_spin_unlock): Use READ_MEMORY_BARRIER, not
        MEMORY_BARRIER.
        * internals.h (READ_MEMORY_BARRIER): Define if not defined in sysdep
        headers.

2000-04-17  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/unix/sysv/linux/i386/getcpuclockid.c
        (pthread_getcpuclockid): Don't compare thread_id with thread_self,
        use thread_handle().

2000-04-16  Ulrich Drepper  <drepper@redhat.com>

        * condvar.c (pthread_cond_timedwait_relative): Don't test for owner
        if fast mutex is used.  Don't initialize `already_canceled' twice.
        Correctly test for return value of timedsuspend.

        * pthread.c: Correct long-time braino.  We never set SA_SIGINFO and
        therefore don't need the _rt versions of the signal handlers.

2000-04-15  Ulrich Drepper  <drepper@redhat.com>

        * pthread.c (pthread_yield): New function.
        * sysdeps/pthread/pthread.h (pthread_yield): Add prototype.
        * Versions [libpthread] (GLIBC_2.2): Add pthread_yield.
        * internals.h: Declare __pthread_yield.

        * pthread.c (pthread_initialize): Avoid a bit more code if
        realtime signals are known to exist.

        * pthread.c: Is __ASSUME_REALTIME_SIGNALS then avoid generating code
        to dynamically detect RT signals and avoid generating compatibility
        functions with old kernel.
        * restart.h (restart) [__ASSUME_REALTIME_SIGNALS]: Use
        __pthread_restart_new directly.
        (suspend) [__ASSUME_REALTIME_SIGNALS]: Use
        __pthread_wait_for_restart_signal directly.
        (timedsuspend) [__ASSUME_REALTIME_SIGNALS]: Use
        __pthread_timedsuspend_new directly.

2000-04-15  Ulrich Drepper  <drepper@redhat.com>

        * condvar.c: Remove all the special code to handle cond_timedwait.
        Use timedsuspend instead.
        * internals.h: Declare __pthread_timedsuspend_old,
        __pthread_timedsuspend_new, and __pthread_timedsuspend.
        Remove declaration of __pthread_init_condvar.
        * pthread.c: Define __pthread_timedsuspend variable.
        (__pthread_timedsuspend_old): New function.  Timed suspension
        implementation for old Linux kernels.
        (__pthread_timedsuspend_new): New function.  Timed suspension
        implementation for new Linux kernels.
        * restart.h (timedsuspend): New function.  Call appropriate
        suspension function through __pthread_timedsuspend.
        * semaphore.c (sem_timedwait): Use timedsuspend, don't duplicate
        the code.
        Patch by Kaz Kylheku <kaz@ashi.footprints.net>.

        * internals.h (WRITE_MEMORY_BARRIER): Define as MEMORY_BARRIER if
        undefined.
        * spinlock.c: Use WRITE_MEMORY_BARRIER instead of MEMORY_BARRIER
        where possible.
        * sysdeps/alpha/pt-machine.h: Define WRITE_MEMORY_BARRIER.
        * sysdeps/sparc/sparc64/pt-machine.h: Likewise.

        * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add _POSIX_SPAWN.
        * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.

2000-04-14  Andreas Jaeger  <aj@suse.de>

        * weaks.c: Fix typo.

        * shlib-versions (mips.*-.*-linux.*): Support only GLIBC 2.0 and
        2.2 for linuxthreads.

2000-04-13  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/unix/sysv/linux/i386/getcpuclockid.c
        (pthread_getcpuclockid): Fix typo.

2000-04-12  Ulrich Drepper  <drepper@redhat.com>

        * Makefile (libpthread-routines): Add getcpuclockid.
        * Versions [libpthread] (GLIBC_2.2): Add pthread_getcpuclockid.
        * sysdeps/pthread/getcpuclockid.c: New file.
        * sysdeps/unix/sysv/linux/i386/getcpuclockid.c: New file.
        * sysdeps/pthread/pthread.h: Add prototype for pthread_getcpuclockid.

        * sysdeps/unix/sysv/linux/bits/posix_opt.h (_POSIX_SPIN_LOCKS):
        Defined.
        * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: Likewise.

        * sysdeps/pthread/pthread.h: Add prototypes for pthread_spin_init,
        pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock,
        and pthread_spin_unlock.
        * sysdeps/pthread/bits/pthreadtypes.h: Change struct _pthread_fastlock
        into pthread_spinlock_t.  Change all uses.
        * spinlock.c: Implement pthread_spin_lock.
        Rename __pthread_unlock to __pthread_spin_unlock and define weak
        alias for real name.
        Define pthread_spin_trylock, pthread_spin_init, and
        pthread_spin_destroy.
        Change all uses of _pthread_fastlock to pthread_spinlock_t.
        * spinlock.h: Rename __pthread_unlock to __pthread_spin_unlock.
        Change all uses of _pthread_fastlock to pthread_spinlock_t.
        * Versions [libpthread] (GLIBC_2.2): Add pthread_spin_init,
        pthread_spin_destroy, pthread_spin_lock, pthread_spin_trylock,
        and pthread_spin_unlock.
        * cancel.c: Use __pthread_spin_unlock instead of __pthread_unlock.
        Change all uses of _pthread_fastlock to pthread_spinlock_t.
        * condvar.c: Likewise.
        * internals.h: Likewise.
        * join.c: Likewise.
        * manager.c: Likewise.
        * mutex.c: Likewise.
        * pthread.c: Likewise.
        * rwlock.c: Likewise.
        * semaphore.c: Likewise.
        * signals.c: Likewise.

        * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add various new POSIX
        macros.
        * sysdeps/unix/sysv/linux/i386/bits/posix_opt.h: New file.

2000-04-11  Ulrich Drepper  <drepper@redhat.com>

        * sysdeps/unix/sysv/linux/bits/posix_opt.h: Add
        _POSIX_SHARED_MEMORY_OBJECTS.

2000-04-11  Andreas Jaeger  <aj@suse.de>

        * sysdeps/mips/pt-machine.h (MEMORY_BARRIER): Define.
        (__compare_and_swap): Mark as modifying memory.

2000-04-11  Geoff Keating  <geoffk@cygnus.com>

        * sysdeps/powerpc/pt-machine.h (MEMORY_BARRIER): Don't be
        __volatile__.
        (__compare_and_swap): Replace other 'sync' with MEMORY_BARRIER.
        Don't have the 'asm' __volatile__.

2000-04-11  Ulrich Drepper  <drepper@redhat.com>

        * internals.h: Define MEMORY_BARRIER as empty if not defined already.
        * spinlock.c (__pthread_lock): Add memory barriers.
        (__pthread_unlock): Likewise.
        * sysdeps/alpha/pt-machine.h (MEMORY_BARRIER): Define using mb
        instruction.
        (RELEASE): Not needed anymore.
        (__compare_and_swap): Mark asm as modifying memory.
        * sysdeps/powerpc/pt-machine.h (sync): Remove.  Replace with definition
        of MEMORY_BARRIER.
        (__compare_and_swap): Use MEMORY_BARRIER instead of sync.
        * sysdeps/sparc/sparc32/pt-machine.h (RELEASE): Not needed anymore.
        (MEMORY_BARRIER): Define using stbar.
        * sysdeps/sparc/sparc64/pt-machine.h (MEMORY_BARRIER): Define using
        stbar.
        (__compare_and_swap): Use MEMORY_BARRIER to ensure ordering.
        Patch by Xavier Leroy <Xavier.Leroy@inria.fr> based on comments by
        Mike Burrows <m3b@pa.dec.com>.

2000-04-09  Ulrich Drepper  <drepper@redhat.com>

        * signals.c (sigaction): Fix return value for the case SIG is one
        of the signals the implementation uses.
        Patch by Xavier.Leroy@inria.fr.

2000-04-01  Andreas Jaeger  <aj@suse.de>

        * attr.c: Use shlib-compat macros.
        * oldsemaphore.c: Likewise.
        * pthread.c: Likewise.
        * weaks.c: Likewise.

2000-03-26  Ulrich Drepper  <drepper@redhat.com>

        * semaphore.c (sem_timedwait): New function.
        Patch by Carl Mailloux <carlm@oricom.ca>.
        * semaphore.h: Declare sem_timedwait.
        * Versions [libpthread] (GLIBC_2.2): Add sem_timedwait.

2000-03-26  Roland McGrath  <roland@baalperazim.frob.com>

        * sysdeps/pthread/Makefile: File removed.

2000-03-23  Ulrich Drepper  <drepper@redhat.com>

        * mutex.c (__pthread_reset_pthread_once): Reset once_masterlock.
        * internals.h (__pthread_reset_pthread_once): Add prototype.
        * ptfork.c (__fork): Call __pthread_reset_pthread_once.

        * manager.c (pthread_handle_create): Store ID of new thread before
        clone call.

2000-03-21  Ulrich Drepper  <drepper@redhat.com>

        * attr.c: Use new macros from shlib-compat.h to define versions.
        * oldsemaphore.c: Likewise.
        * semaphore.c: Likewise.
        * weaks.c: Likewise.

        * pthread.c: Update for new SHLIB_COMPAT definition.

        * manager.c (__pthread_manager): Unmask debug signal.

        * pthread.c (pthread_initialize): Test for address of __dso_handle
        being NULL, not value.  Use __on_exit, not on_exit.
        Patch by Andreas Jaeger <aj@suse.de>.

        * pthread.c: Use new macros from shlib-compat.h to define versions.

2000-03-19  Ulrich Drepper  <drepper@redhat.com>

        * pthread.c (pthread_initialize): Instead of on_exit use
        __cxa_atexit if __dso_label is available to allow unloading the
        libpthread shared library.

2000-03-16  Ulrich Drepper  <drepper@redhat.com>

        * condvar.c: Make tests for ownership of mutex less strict.

2000-03-14  Ulrich Drepper  <drepper@redhat.com>

        * condvar.c (pthread_cond_wait): Check whether mutex is owned by
        current thread and return error if not.
        (pthread_cond_timedwait_relative_old): Likewise.
        (pthread_cond_timedwait_relative_new): Likewise.

        * mutex.c (__pthread_once): Handle cancelled init function correctly.
        (pthread_once_cancelhandler): New function.
        Patch by Kaz Kylheku <kaz@ashi.footprints.net>.

2000-03-14  Andreas Jaeger  <aj@suse.de>

        * pthread.c (pthread_handle_sigcancel_rt): GS has been renamed to
        REG_GS.
        (pthread_handle_sigrestart_rt): Likewise.
        * signals.c (pthread_sighandler_rt): Likewise.

2000-03-02  Andreas Jaeger  <aj@suse.de>

        * sysdeps/pthread/bits/libc-lock.h: Fix typo.
        Reported by Sean Chen <sean.chen@turbolinux.com>.

2000-02-28  Andreas Jaeger  <aj@suse.de>

        * rwlock.c: Fix typo.

2000-02-27  Ulrich Drepper  <drepper@redhat.com>

        * rwlock.c: Define __* variants of the functions and make old names
        aliases.
        * Versions [GLIBC_2.2]: Export the __pthread_rwlock_* functions.
        * sysdeps/pthread/bits/libc-lock.h: Define __libc_rwlock_* macros.

2000-02-25  Andreas Jaeger  <aj@suse.de>

        * Versions: Export pread, __pread64, pread64, pwrite, __pwrite64,
        pwrite64, lseek64, open64, and __open64 with version 2.2.

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  Andreas Jaeger  <aj@suse.de>

        * condvar.c (pthread_cond_timedwait_relative_new): Fix last patch.
        (pthread_cond_timedwait_relative_old): Likewise.

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.

        * sysdeps/pthread/pthread.h: Define
        PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP.

2000-01-16  Ulrich Drepper  <drepper@cygnus.com>

        * rwlock.c (pthread_rwlock_unlock): Correct one more problem with
        preference handling.
        (pthread_rwlockattr_setkind_np): Allow
        PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP.
        Patches by Kaz Kylheku <kaz@ashi.footprints.net>.

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>.

2000-01-05  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.

1999-12-31  Andreas Jaeger  <aj@suse.de>

        * internals.h: Remove duplicate prototype declarations.

        * weaks.c: Remove __THROW from prototypes since the file is not
        compiled by a C++ compiler.
        * internals.h: Likewise.

1999-12-30  Andreas Jaeger  <aj@suse.de>

        * sysdeps/pthread/pthread.h: Move internal functions to...
        * sysdeps/pthread/bits/libc-lock.h: ...here.

1999-12-29  Andreas Jaeger  <aj@suse.de>

        * sysdeps/pthread/pthread.h: Fix typos, reformat comments.

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 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.

1999-12-18  Ulrich Drepper  <drepper@cygnus.com>

        * Versions: Export pread, __pread64, pread64, pwrite, __pwrite64,
        pwrite64, lseek64, open64, and __open64.
        * wrapsyscall.c: Define pread, __pread64, pread64, pwrite, __pwrite64,
        pwrite64, lseek64, open64, and __open64.

        * manager.c (pthread_allocate_stack): Correct computation of
        new_thread_bottom.  Correct handling of stack size and when the
        rlimit method to guard for stack growth is used.
        * pthread.c (pthread_initialize): Stack limit must be STACK_SIZE
        minus one pagesize (not two).

1999-12-03  Andreas Jaeger  <aj@suse.de>

        * Versions: Add __res_state with version GLIBC_2.2.

        * errno.c (__res_state): New function to return thread specific
        resolver state.

        * pthread.c (pthread_initialize): Initialize p_resp.
        (__pthread_reset_main_thread): Also set p_resp.

        * manager.c (pthread_handle_create): Initialize p_resp.

        * internals.h: Add thread specific resolver state.
        Based on patches by Adam D. Bradley <artdodge@cs.bu.edu>.

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.

1999-10-25  Andreas Jaeger  <aj@suse.de>

        * internals.h: Remove K&R compatibility.
        * no-tsd.c: Likewise.
        * semaphore.h: Likewise.
        * signals.c: Likewise.
        * sysdeps/pthread/bits/libc-tsd.h: Likewise.
        * sysdeps/unix/sysv/linux/bits/sigthread.h: Likewise.
        * weaks.c: Likewise.

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.

1999-10-17  Ulrich Drepper  <drepper@cygnus.com>

        * internals.h (PTHREAD_START_ARGS_INITIALIZER): Add cast.

1999-10-14  Ulrich Drepper  <drepper@cygnus.com>

        * pthread.c (__pthread_initial_thread): Pass argument to
        PTHREAD_START_ARGS_INITIALIZER.
        (__pthread_manager_thread): Likewise.

        * internals.h (PTHREAD_START_ARGS_INITIALIZER): Add parameter to
        initialize function.

        * manager.c (pthread_handle_create): Remove p_startfct initialization.

        * internals.h (_pthread_descr_struct): We don't need p_startfct field.

1999-10-12  Ulrich Drepper  <drepper@cygnus.com>

        * internals.h: Correct return types for __libc_read and __libc_write.

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.
        Patch by khendricks@ivey.uwo.ca [libc/1382].

1999-10-08  Andreas Schwab  <schwab@suse.de>

        * sysdeps/pthread/Subdirs: New file.
        * Implies: Removed.

1999-10-07  Ulrich Drepper  <drepper@cygnus.com>

        * Implies: New file.
        * internals.h (struct _pthread_descr_struct): Add p_startfct.
        * manager.c (pthread_handle_create): Initialize p_startfct.
        * pthread.c: Define __linuxthread_pthread_sizeof_descr variable.

1999-09-25  Ulrich Drepper  <drepper@cygnus.com>

        * manager.c (__linuxthreads_pthread_threads_max): New variable.
        * specific.c (__linuxthreads_pthread_keys_max): New variable.
        (__linuxthreads_pthread_key_2ndlevel_size): New variable.

        * 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.

1999-09-18  Ulrich Drepper  <drepper@cygnus.com>

        * pthread.c (pthread_handle_sigrestart_rt): New function.  Use
        this instead of pthread_handle_sigrestart if the signal is an RT
        signal.

        * signals.c: Handle passing through of sighandler arguments also
        for real-time signals.

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>

        * oldsemaphore.c (sem_compare_and_swap): Fix use of compare and
        swap function.

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.

1999-07-09  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>.

1999-05-23  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.