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2013-12-29Revert "Allow applications to set the default stack size"Richard Braun
This reverts commit 536420a581f9f822cdef0fc460b5176a840f49e5. Now that threadvars have been replaced with TLS, this hack is no longer needed.
2013-12-26Implement thread destructionRichard Braun
This change makes libpthread release almost every resource allocated for a thread, including the kernel thread, its send right, its reply port and its stack. This improves resource usage after peaks of activity during which servers can create hundreds or even thousands of threads. To achieve this, the library relies on the recently added thread_terminate_release one-way GNU Mach RPC, which allows threads to release their last resources along with terminating in a single operation. The pthread_exit function unconditionally releases all the resources it can, including other kernel objects (namely the port used for blocking and waking up) and signal states. When releasing the pthread structure, a reference counter is used so that joinable threads remain available. Once the reference counter drops to 0, the pthread structure can be recycled. Thread local storage (TLS) is also recycled since it needs to remain allocated while terminating the thread, as it is there that the reply port is stored. TLS could be released too, after grabbing the reply port name, but it is difficult to make sure no RPC involving a reply port is used afterwards, so the simpler solution of recycling TLS was chosen. * Makefile (libpthread-routines): Replace pt-thread-halt with pt-thread-terminate. * pthread/pt-alloc.c (initialize_pthread): Set reference counter and unconditionally initialize new threads completely. (__pthread_alloc): Remove call to __pthread_thread_halt, update calls to initialize_pthread. * pthread/pt-create.c (__pthread_create_internal): Don't attempt to reuse stacks, handle reference counter, update failure handling. * pthread/pt-dealloc.c: Include bits/pt-atomic.h. (__pthread_dealloc): Make pthread structure available for reuse when reference counter reaches 0. * pthread/pt-detach.c (pthread_detach): Assume the target thread takes care of its own resources and, as a result, simply unreference its pthread struct. * pthread/pt-exit.c (__pthread_exit): Release resources and terminate. * pthread/pt-internal.h (struct __pthread): New `nr_refs' member. (__pthread_alloc): Update description. (__pthread_dealloc): Likewise. (__pthread_thread_dealloc): Likewise. (__pthread_thread_terminate): New declaration. * pthread/pt-join.c (pthread_join): Assume the target thread takes care of its own resources and, as a result, simply unreference its pthread struct. * sysdeps/mach/hurd/pt-sigstate-destroy.c (__pthread_sigstate_destroy): Call _hurd_sigstate_delete. * sysdeps/mach/hurd/pt-sigstate-init.c (__pthread_sigstate_init): Call _hurd_thread_sigstate and _hurd_sigstate_set_global_rcv when appropriate. * sysdeps/mach/hurd/pt-sysdep.c (__pthread_create_internal): Prevent the library from releasing the stack of the main thread. * sysdeps/mach/hurd/pt-sysdep.h (PTHREAD_SYSDEP_MEMBERS): Remove `have_kernel_resources' from the list of sysdep members. * sysdeps/mach/pt-thread-alloc.c (__pthread_thread_alloc): Update thread allocation. * sysdeps/mach/pt-thread-dealloc.c (__pthread_thread_dealloc): Update description. * sysdeps/mach/pt-thread-halt.c: Remove file. * sysdeps/mach/pt-thread-start.c (__pthread_thread_start): Fix the conditions under which a thread should actually be started. * sysdeps/mach/pt-thread-terminate.c: New file.
2013-10-20Drop threadvars entirelySamuel Thibault
2013-10-20Use function parameter instead of global variableSamuel Thibault
* sysdeps/mach/pt-stack-alloc.c(__pthread_stack_alloc): Use `stacksize` parameter instead of `__pthread_stacksize` global variable.
2013-09-21Add pthread_atfork supportSamuel Thibault
* Versions (libc): Add __register_atfork with GLIBC_PRIVATE version. * forward.c: Include <errno.h> (atfork): New structure. (atfork_lock): New mutex. (fork_handlers, fork_last_handler): New variables. (atfork_pthread_prepare, atfork_pthread_parent, atfork_pthread_child): New atfork hooks (__register_atfork): New function. * sysdeps/generic/pt-atfork.c (pthread_atfork): Call __register_atfork.
2013-02-15Add pthread_hurd_cond_timedwait_npRichard Braun
This new Hurd-specific function is meant to allow Hurd servers to wait for events during a bounded period of time. * Makefile (libpthread-routines): Add pt-hurd-cond-timedwait. * Versions: Include pthread_hurd_cond_timedwait_np in version GLIBC_2.17 of libpthread. * sysdeps/mach/hurd/bits/pthread-np.h (pthread_hurd_cond_timedwait_np): New declaration. * sysdeps/mach/hurd/pt-hurd-cond-timedwait.c: New file that provides __pthread_hurd_cond_timedwait_internal and __pthread_hurd_cond_timedwait_np. * sysdeps/mach/hurd/pt-hurd-cond-wait.c (__pthread_hurd_cond_wait_np): Rewrite as a call to __pthread_hurd_cond_timedwait_internal with no timeout.
2013-02-04Fix pthread timeout handling and cancellation issuesRichard Braun
This patch solves two issues. The first one is cancellation handling when a cancellation request is sent before reaching a cancellation point (namely, pthread_cond_{timed,}wait). Cancellation is implemented by pushing an appropriate cleanup handler and switching to PTHREAD_CANCEL_ASYNCHRONOUS type. The main problem is that it doesn't handle pending requests, only a cancellation that occurs while blocking. Other problems occur when trying to correctly handle a timeout and a cancellation request through the cleanup routine. The other issue is correctly handling timeouts. This problem was already well known, as explained by the following comment : "FIXME: What do we do if we get a wakeup message before we disconnect ourself? It may remain until the next time we block." In addition, the prevp thread member is inconsistently used. It is sometimes accessed while protected by the appropriate queue lock to determine whether a thread is still queued, while at times, threads are unqueued without holding a lock, as in pthread_cond_broadcast : /* We can safely walk the list of waiting threads without holding the lock since it is now decoupled from the condition. */ __pthread_dequeuing_iterate (wakeup, wakeup) __pthread_wakeup (wakeup); This is the root cause that triggers some assertion failures. The solution brought by this patch is to consistently use the prevp link to determine if both a thread has been unqueued and if a wakeup message has been sent (both are needed to wake up a thread). A thread unblocked because of a timeout can now accurately determine if it needs to drain its message queue. A direct improvement is that the message queue size can be limited to one message, and wakeups are guaranteed to be non-blocking, which allows safely calling __pthread_wakeup from critical sections. As it now affects the cleanup cancellation routine of __pthread_cond_timedwait_internal, cancellation is reworked as well. Cancellation type is forced to PTHREAD_CANCEL_DEFERRED during the call, and actually checked on both entry and return. A hook is set by the blocking thread so that the waker doesn't need to know about the call implementation. Cancellation members are now protected with a mutex for truely safe access. * pthread/pt-alloc.c (initialize_pthread): Initialize the new `cancel_lock', `cancel_hook' and `cancel_hook_args' fields. * pthread/pt-cancel.c (pthread_cancel): Rework cancellation handling. * pthread/pt-internal.h (struct __pthread): Add `cancel_lock', `cancel_hook' and `cancel_hook_args' fields. (__pthread_dequeue): Assert thread->prevp isn't NULL. * pthread/pt-join.c (pthread_join): Describe how the cancellation point is implemented. * pthread/pt-setcancelstate.c (__pthread_setcancelstate): Lock the given thread cancellation lock when switching state. * pthread/pt-setcanceltype.c (__pthread_setcanceltype): Likewise for cancellation type. * pthread/pt-testcancel.c (pthread_testcancel): Likewise for pending cancellations. * sysdeps/generic/pt-cond-brdcast.c (__pthread_cond_broadcast): Dequeue and wake up threads with condition locked. * sysdeps/generic/pt-cond-signal.c (cond_signal): Remove function, move implementation to ... (__pthread_cond_signal): ... this function. Remove unused `unblocked' variable. * sysdeps/generic/pt-cond-timedwait.c (struct cancel_ctx): New structure. (cancel_hook): New static function. (__pthread_cond_timedwait_internal): Fix cancellation and timeout handling. * sysdeps/generic/pt-mutex-timedlock.c (__pthread_mutex_timedlock_internal): Fix timeout handling. * sysdeps/generic/pt-rwlock-timedrdlock.c (__pthread_rwlock_timedrdlock_internal): Likewise. * sysdeps/generic/pt-rwlock-timedwrlock.c (__pthread_rwlock_timedwrlock_internal): Likewise. * sysdeps/generic/pt-rwlock-unlock.c (pthread_rwlock_unlock): Dequeue and wake up threads with rwlock internal lock held. * sysdeps/generic/sem-timedwait.c (__sem_timedwait_internal): Fix timeout handling. * sysdeps/mach/hurd/pt-docancel.c (__pthread_do_cancel): Unlock the given thread cancellation lock. * sysdeps/mach/pt-thread-alloc.c (create_wakeupmsg): Limit the message queue size of the wakeup port to 1. * sysdeps/mach/pt-wakeup.c (__pthread_wakeup): Call __mach_msg in a non-blocking way.
2013-01-25New Makefile snippet for the "pthread" sysdepPino Toscano
Hook the libpthread version when compiling glibc's confstr.c, so that confstr can show it. * sysdeps/pthread/Makefile: New file.
2013-01-25Require the "pthread" sysdepPino Toscano
This allows the use of glibc sysdeps that use pthread-based implementations. * sysdeps/mach/hurd/Implies: Add pthread.
2012-11-25Allow applications to set the default stack sizeRichard Braun
This change is a temporary hack intended for the Hurd servers. Once Hurd threadvars are replaced with TLS, this commit should be reverted. * pthread/pt-internal.h (__pthread_default_attr): Remove const qualifier. * sysdeps/generic/pt-attr.c (__pthread_default_attr): Likewise. * sysdeps/mach/hurd/pt-sysdep.c (__pthread_stack_default_size): New variable. (init_routine): Set __pthread_default_attr.stacksize if __pthread_stack_default_size exists.
2012-11-25Add Hurd-specific condition wait functionRichard Braun
* Makefile (libpthread-routines): Add pt-hurd-cond-wait. * Versions (libc): Add pthread_hurd_cond_wait_np. (libpthread): Likewise. * sysdeps/mach/hurd/bits/pthread-np.h: New file. * sysdeps/mach/hurd/pt-hurd-cond-wait.c: Likewise.
2012-08-07Rename ia32 sysdep directories to i386.Thomas Schwinge
* sysdeps/i386/Implies: Remove file. * sysdeps/mach/hurd/i386/Implies: Likewise. * sysdeps/ia32/bits/memory.h: Rename to sysdeps/i386/bits/memory.h. * sysdeps/ia32/bits/pt-atomic.h: Rename to sysdeps/i386/bits/pt-atomic.h. * sysdeps/ia32/bits/spin-lock-inline.h: Rename to sysdeps/i386/bits/spin-lock-inline.h. * sysdeps/ia32/bits/spin-lock.h: Rename to sysdeps/i386/bits/spin-lock.h. * sysdeps/ia32/machine-sp.h: Rename to sysdeps/i386/machine-sp.h. * sysdeps/ia32/pt-machdep.h: Rename to sysdeps/i386/pt-machdep.h. * sysdeps/mach/hurd/ia32/pt-machdep.c: Rename to sysdeps/mach/hurd/i386/pt-machdep.c. * sysdeps/mach/hurd/ia32/pt-setup.c: Rename to sysdeps/mach/hurd/i386/pt-setup.c. * Makefile (SYSDEP_PATH): Adapt to that.
2012-08-07Remove PowerPC port.Thomas Schwinge
* sysdeps/powerpc/bits/machine-lock.h: Remove file. * sysdeps/powerpc/bits/memory.h: Likewise. * sysdeps/powerpc/bits/spin-lock.h: Likewise. * sysdeps/powerpc/machine-sp.h: Likewise. * sysdeps/powerpc/pt-machdep.h: Likewise. * TODO: Update.
2012-08-07Remove L4 port.Thomas Schwinge
* Makefile.am: Remove file. * headers.m4: Likewise. * sysdeps/l4/bits/pthread-np.h: Likewise. * sysdeps/l4/hurd/bits/pthread-np.h: Likewise. * sysdeps/l4/hurd/ia32/pt-machdep.c: Likewise. * sysdeps/l4/hurd/ia32/pt-setup.c: Likewise. * sysdeps/l4/hurd/ia32/signal-dispatch-lowlevel.c: Likewise. * sysdeps/l4/hurd/powerpc/pt-machdep.c: Likewise. * sysdeps/l4/hurd/powerpc/pt-setup.c: Likewise. * sysdeps/l4/hurd/pt-block.c: Likewise. * sysdeps/l4/hurd/pt-kill.c: Likewise. * sysdeps/l4/hurd/pt-setactivity-np.c: Likewise. * sysdeps/l4/hurd/pt-sigstate-destroy.c: Likewise. * sysdeps/l4/hurd/pt-sigstate-init.c: Likewise. * sysdeps/l4/hurd/pt-sigstate.c: Likewise. * sysdeps/l4/hurd/pt-startup.c: Likewise. * sysdeps/l4/hurd/pt-sysdep.c: Likewise. * sysdeps/l4/hurd/pt-sysdep.h: Likewise. * sysdeps/l4/hurd/pt-thread-alloc.c: Likewise. * sysdeps/l4/hurd/pt-thread-halt.c: Likewise. * sysdeps/l4/hurd/pt-thread-start.c: Likewise. * sysdeps/l4/hurd/pt-wakeup.c: Likewise. * sysdeps/l4/hurd/sig-sysdep.h: Likewise. * sysdeps/l4/hurd/sigprocmask.c: Likewise. * sysdeps/l4/pt-block.c: Likewise. * sysdeps/l4/pt-docancel.c: Likewise. * sysdeps/l4/pt-pool-np.c: Likewise. * sysdeps/l4/pt-spin.c: Likewise. * sysdeps/l4/pt-stack-alloc.c: Likewise. * sysdeps/l4/pt-thread-alloc.c: Likewise. * sysdeps/l4/pt-thread-dealloc.c: Likewise. * sysdeps/l4/pt-thread-halt.c: Likewise. * sysdeps/l4/pt-thread-start.c: Likewise. * sysdeps/l4/pt-timedblock.c: Likewise. * sysdeps/l4/pt-wakeup.c: Likewise. * TODO: Update. * signal/README: Likewise.
2012-07-08Default to a little guardsizeSamuel Thibault
Later rounded up to a page. * sysdeps/generic/pt-attr.c (__pthread_default_attr) [!PAGESIZE]: Set guardsize field to 1.
2012-04-27Store self in __thread variable instead of threadvarSamuel Thibault
* sysdeps/mach/hurd/pt-sysdep.h (_HURD_THREADVAR_THREAD): Remove macro. (___pthread_self): Declare new __thread variable. (_pthread_self): Take self pointer from ___pthread_self instead of threadvar. * sysdeps/mach/hurd/pt-sysdep.c (___pthread_self): Define new __thread variable. (init_routine): Set ___pthread_self to initial thread structure. * pthread/pt-internal.h (__pthread_setup): Add `self' parameter to `entry_point' parameter. * pthread/pt-create.c (entry_point): Add `self' parameter. Store it in ___pthread_self. * sysdeps/l4/hurd/ia32/pt-setup.c (stack_setup): Add `self parameter to `entry_point' parameter. Pass it the `thread' parameter. (__pthread_setup): Likewise. * sysdeps/l4/hurd/powerpc/pt-setup.c (struct start_info): Add `self' field. (first_entry_1): Pass `self' parameter. (stack_setup): Add `self' parameter to `entry_point' parameter, pass it the `thread' parameter. (__pthread_setup): Likewise. * sysdeps/mach/hurd/ia32/pt-setup.c (stack_setup): Pass `thread' parameter to the start routine. (stack_setup): Add `self' parameter to `entry_point' paramter.
2012-04-23Rename __pthread_initialize into __pthread_initSamuel Thibault
The former conflicts with usage in glibc. * pthread/pt-initialize.c (__pthread_initialize): Rename into __pthread_init. * pthread/pt-internal.h (__pthread_initialize): Likewise. * sysdeps/l4/hurd/pt-sysdep.c (init_routine): Likewise. * sysdeps/mach/hurd/pt-sysdep.c (init_routine): Likewise.
2012-04-22Merge branch 'master' of git.savannah.gnu.org:/srv/git/hurd/libpthreadSamuel Thibault
2012-04-22Install bits/pthreadtypes.hSamuel Thibault
And make it expose only types, not the rest of the pthread API. * Makefile (headers): Add bits/pthreadtypes.h. * sysdeps/generic/bits/pthreadtypes.h: Include <pthread/pthreadtypes.h> instead of <pthread.h>
2012-04-22pthread_condattr_setclock: allow a monotonic clock, if presentPino Toscano
If CLOCK_MONOTONIC is requested, check (only once) for the availability of a monotonic clock using `clock_getres'. If it is not, reject CLOCK_MONOTONIC with EINVAL (as before). * sysdeps/generic/pt-condattr-setclock.c (pthread_condattr_setclock): Check for monotonic clock if requested.
2012-04-22__pthread_timedblock: switch to clock_gettimePino Toscano
Use `clock_gettime' with the provided clock instead of `gettimeofday', linking to rt. * sysdeps/mach/pt-timedblock.c (__pthread_timedblock): Switch to `clock_gettime'. * Makefile [!IN_GLIBC] (LDLIBS): Link to rt. [IN_GLIBC] ($(objpfx)libpthread.so): Likewise. * Makefile.am (libpthread_a_LDADD): Likewise.
2012-04-22__pthread_timedblock: add an argument for the clock idPino Toscano
To make `__pthread_timedblock' properly measure time using the right clock, add a new argument representing the clock to use. * pthread/pt-internal.h (__pthread_timedblock): New argument CLOCK_ID. * sysdeps/l4/pt-timedblock.c (__pthread_timedblock): Likewise. * sysdeps/mach/pt-timedblock.c (__pthread_timedblock): Likewise. * sysdeps/generic/pt-cond-timedwait.c (__pthread_cond_timedwait_internal): Pass the clock of the `pthread_cond' to `__pthread_timedblock'. * sysdeps/generic/pt-mutex-timedlock.c (__pthread_mutex_timedlock_internal): Pass CLOCK_REALTIME to `__pthread_timedblock'. * sysdeps/generic/pt-rwlock-timedrdlock.c (__pthread_rwlock_timedrdlock_internal): Likewise. * sysdeps/generic/pt-rwlock-timedwrlock.c (__pthread_rwlock_timedwrlock_internal): Likewise. * sysdeps/generic/sem-timedwait.c (__sem_timedwait_internal): Likewise.
2012-04-21Add glibc build supportSamuel Thibault
* Makeconfig, Versions, configure.in, forward.c, libc_pthread_init.c, pthread/pthread-functions.h, shlib-versions, sysdeps/i386/Implies, sysdeps/mach/hurd/Implies, sysdeps/mach/hurd/i386/Implies: New files. * Makefile: Add glibc rules, enabled when IN_GLIBC is defined to yes, when $(..) is defined. * pthread/pt-initialize.c [IS_IN_libpthread] (pthread_functions): New variable. [IS_IN_libpthread] (__pthread_initialize): Call __libc_pthread_init.
2012-04-21Rename bits/atomic.h to bits/pt-atomic.hSamuel Thibault
This avoids a conflict with glibc-provided bits/atomic.h * sysdeps/ia32/bits/atomic.h: Rename to... * sysdeps/ia32/bits/pt-atomic.h: ... this. * pthread/pt-create.c: Include <bits/pt-atomic.h> instead of <bits/atomic.h> * pthread/pt-exit.c: Likewise. * pthread/pt-internal.h: Likewise.
2012-04-21Rename pthread functions to be used for forwardingSamuel Thibault
Libc will need to be able to call them, so they need to have a different name. * pthread/pt-exit.c (pthread_exit): Rename with __ prefix and add strong alias. * pthread/pt-self.c (pthread_self): Likewise. * pthread/pt-setcancelstate.c (pthread_setcancelstate): Likewise * pthread/pt-setcanceltype.c (pthread_setcanceltype): Likewise * sysdeps/generic/pt-attr-destroy.c (pthread_attr_destroy): Likewise * sysdeps/generic/pt-attr-getdetachstate.c (pthread_attr_getdetachstate): Likewise * sysdeps/generic/pt-attr-getinheritsched.c (pthread_attr_getinheritsched): Likewise * sysdeps/generic/pt-attr-getschedparam.c (pthread_attr_getschedparam): Likewise * sysdeps/generic/pt-attr-getschedpolicy.c (pthread_attr_getschedpolicy): Likewise * sysdeps/generic/pt-attr-getscope.c (pthread_attr_getscope): Likewise * sysdeps/generic/pt-attr-init.c (pthread_attr_init): Likewise * sysdeps/generic/pt-attr-setdetachstate.c (pthread_attr_setdetachstate): Likewise * sysdeps/generic/pt-attr-setinheritsched.c (pthread_attr_setinheritsched): Likewise * sysdeps/generic/pt-attr-setschedparam.c (pthread_attr_setschedparam): Likewise * sysdeps/generic/pt-attr-setschedpolicy.c (pthread_attr_setschedpolicy): Likewise * sysdeps/generic/pt-attr-setscope.c (pthread_attr_setscope): Likewise * sysdeps/generic/pt-cond-brdcast.c (pthread_cond_broadcast): Likewise * sysdeps/generic/pt-cond-destroy.c (pthread_cond_destroy): Likewise * sysdeps/generic/pt-cond-init.c (pthread_cond_init): Likewise * sysdeps/generic/pt-cond-signal.c (pthread_cond_signal): Likewise * sysdeps/generic/pt-cond-timedwait.c (pthread_cond_timedwait): Likewise * sysdeps/generic/pt-cond-wait.c (pthread_cond_wait): Likewise * sysdeps/generic/pt-condattr-destroy.c (pthread_condattr_destroy): Likewise * sysdeps/generic/pt-condattr-init.c (pthread_condattr_init): Likewise * sysdeps/generic/pt-equal.c (pthread_equal): Likewise * sysdeps/generic/pt-getschedparam.c (pthread_getschedparam): Likewise * sysdeps/generic/pt-setschedparam.c (pthread_setschedparam): Likewise
2011-11-06Merge branch 'master' of git.savannah.gnu.org:/srv/git/hurd/libpthreadSamuel Thibault
2011-11-06pthread_getspecific, pthread_setspecific: check the key validityPino Toscano
When getting a TSD, handle gracefully the case of an invalid key. When setting a TSD, check for the validity of the key as recommended (although not required) by POSIX. This also avoids potentially filling the `thread_specifics' hash of threads with TSD of invalid keys. Add two simple checks in test-7.c for the two situations above. * sysdeps/hurd/pt-getspecific.c (pthread_getspecific): Check the validity of the specified key. * sysdeps/hurd/pt-setspecific.c (pthread_setspecific): Likewise. * tests/test-7.c (main): Add two assertions.
2011-11-06Merge branch '__pthread_destroy_specific-PTHREAD_KEY_INVALID'Thomas Schwinge
Conflicts: tests/Makefile
2011-11-05Correct logic for PTHREAD_KEY_INVALID slots.Thomas Schwinge
* sysdeps/hurd/pt-destroy-specific.c (__pthread_destroy_specific): Correct logic for PTHREAD_KEY_INVALID slots. * tests/test-__pthread_destroy_specific-skip.c: New file. * tests/Makefile (CHECK_SRC): Add test-__pthread_destroy_specific-skip.c.
2011-11-05Remove all the values when deleting a keyPino Toscano
When deleting a key using `pthread_key_delete', delete all the values associated to that key in all the threads available. Otherwise, the key reuse in `pthread_key_create' can cause new keys to have thread specific data of the previously used key with the same index. Add a test for this case, which creates and deletes pairs of keys checking that they have a NULL thread specific data after creation. * sysdeps/hurd/pt-key-delete.c (pthread_key_delete): Remove all the values of the key in all the threads. * tests/Makefile (CHECK_SRC): Add test-17.c. * tests/test-17.c: New file.
2011-10-20Merge branch 'tls'Thomas Schwinge
Conflicts: ChangeLog Makefile pthread/pt-exit.c pthread/pt-internal.h sysdeps/mach/hurd/ia32/pt-setup.c sysdeps/mach/hurd/pt-docancel.c sysdeps/mach/hurd/pt-sysdep.h
2011-10-20 TLS support for libpthread, Mach/Hurd (x86).Samuel Thibault
* Makefile (CFLAGS): Define ENABLE_TLS. * pthread/pt-create.c (__pthread_create_internal) [ENABLE_TLS]: Call into glibc to allocate static TLS block. * pthread/pt-exit.c (pthread_exit) [ENABLE_TLS]: Call into glibc to deallocate static TLS block. * pthread/pt-internal.h [ENABLE_TLS] (tcbhead_t): New structure; as in glibc. (__pthread) [ENABLE_TLS]: Add TCB member. [ENABLE_TLS] (_dl_allocate_tls, _dl_deallocate_tls): Declare; from glibc. * sysdeps/mach/hurd/pt-sysdep.h (__thread_set_pcsp): Rename to __thread_set_pcsptp. Add SET_TP and TP parameters. Change all callers. * sysdeps/mach/hurd/i386/pt-machdep.c (__thread_set_pcsptp): Imlement TLS support. * sysdeps/mach/hurd/i386/pt-setup.c (__pthread_setup): Likewise.
2011-09-07Tiny build and GCC warning fixes.Thomas Schwinge
* pthread/cthreads-compat.c: #include <stddef.h> for NULL. * pthread/pt-exit.c (pthread_exit): Remove stray need_dealloc variable. * sysdeps/generic/pt-attr-getschedparam.c: #include <string.h> for memcpy. * sysdeps/mach/hurd/ia32/pt-setup.c (stack_setup): Apply some more typecasting. * tests/test-1.c: #include <assert.h>. * tests/test-6.c: Likewise. * tests/test-7.c: Likewise. * tests/test-16.c (handler): Take parameters for sa_handler, not sa_sigaction.
2011-08-23Use __clockid_t instead of clockid_tSamuel Thibault
Using clockid_t just for pthread types makes us pull <time.h>, which defines time(), which may conflict with applications. * include/pthread/pthread.h (pthread_condattr_getclock, pthread_condattr_setclock, pthread_getcpuclockid): Use __clockid_t instead of clockid_t. * include/pthread/pthreadtypes.h: Include <bits/types.h>, instead of <time.h> and defining clockid_t ourself when not defined by time.h. * sysdeps/generic/bits/condition-attr.h: Include <bits/types.h> instead of <time.h>. (__pthread_condattr): Use __clockid_t instead of clockid_t.
2010-09-03Fix __sched_param / sched_param conversionSamuel Thibault
* sysdeps/generic/pt-attr-getschedparam.c (pthread_attr_getschedparam): memcpy from `attr->schedparam' to `param' to convert from __sched_param to sched_param. * sysdeps/generic/pt-attr-setschedparam.c (pthread_attr_setschedparam): memcpy from `param' to `attr->schedparam' to convert from sched_param to __sched_param.
2010-09-02Use __sched_param instead of sched_paramSamuel Thibault
to avoid exposing inclusion of <sched.h> and exposure of sched_param from <sys/types.h> * sysdeps/generic/bits/thread-attr.h: Define __need_schedparam and include <bits/sched.h> instead of including <sched.h> (__pthread_attr): Use `__sched_param' instead of `sched_param'.
2010-09-01Prevent pthread.h from exposing assert()Samuel Thibault
* sysdeps/generic/bits/cancelation.h: Do not include <assert.h> (__pthread_cleanup_pop): Do not call `assert'.
2009-10-18Fix pthread_kill(thread, 0)Samuel Thibault
* sysdeps/hurd/pt-kill.c (pthread_kill): Return immediately after checks without calling _hurd_raise_signal if sig is 0.
2009-10-13Fix pthread_cleanup_push old-gcc-style initializerSamuel Thibault
sysdeps/generic/bits/cancelation.h (__pthread_cleanup_push): For better portability to various compilation flags, use standard initializer for struct __pthread_cancelation_handler __handler instead of old-gcc-style.
2009-08-23Fix pthread_mutex_t static initializersSamuel Thibault
Fix pthread_mutex_t static initializers by not leaving references to __pthread_recursive_mutexattr. * include/pthread/pthread.h.orig (PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP): New macro. * sysdeps/generic/pt-mutex-destroy.c (_pthread_mutex_destroy): Compare mutex->attr with __PTHREAD_ERRORCHECK_MUTEXATTR and __PTHREAD_RECURSIVE_MUTEXATTR instead of __pthread_recursive_mutexattr. * sysdeps/generic/pt-mutex-init.c (_pthread_mutex_init): Likewise. * sysdeps/generic/pt-mutex-timedlock.c (__pthread_mutex_timedlock_internal): Likewise. * sysdeps/generic/pt-mutex-transfer-np.c (__pthread_mutex_transfer_np): Likewise. * sysdeps/generic/pt-mutex-trylock.c (__pthread_mutex_trylock): Likewise. * sysdeps/generic/pt-mutex-unlock.c (__pthread_mutex_unlock): Likewise. * sysdeps/generic/pt-mutexattr.c (__pthread_errorcheck_mutexattr): New const. * sysdeps/generic/bits/mutex-attr.h (__pthread_errorcheck_mutexattr): Declare const. * sysdeps/generic/bits/mutex.h (__PTHREAD_ERRORCHECK_MUTEXATTR, __PTHREAD_ERRORCHECK_MUTEX_INITIALIZER, __PTHREAD_RECURSIVE_MUTEXATTR): New macros. (__PTHREAD_RECURSIVE_MUTEX_INITIALIZER): Use __PTHREAD_RECURSIVE_MUTEXATTR macro instead of &__pthread_recursive_mutexattr.
2009-08-23Fix assertion failure in pthread_mutex_trylockSamuel Thibault
* sysdeps/generic/pt-mutex-trylock.c [!ALWAYS_TRACK_MUTEX_OWNER] (__pthread_mutex_trylock): Disable owner tracking.
2009-04-082009-01-10 Samuel Thibault <samuel.thibault@ens-lyon.org>Samuel Thibault
* sysdeps/i386/bits/spin-lock.h (__SPIN_LOCK_INITIALIZER): Rename macro to... (__PTHREAD_SPIN_LOCK_INITIALIZER): ... this. * sysdeps/mach/bits/spin-lock.h (__SPIN_LOCK_INITIALIZER): Rename macro to... (__PTHREAD_SPIN_LOCK_INITIALIZER): ... this. * include/pthread/pthread.h (PTHREAD_SPINLOCK_INITIALIZER): Use __PTHREAD_SPIN_LOCK_INITIALIZER instead of __SPIN_LOCK_INITIALIZER. * sysdeps/generic/bits/condition.h (__PTHREAD_COND_INITIALIZER): Likewise. * sysdeps/generic/bits/mutex.h (__PTHREAD_MUTEX_INITIALIZER, __PTHREAD_RECURSIVE_MUTEX_INITIALIZER): Likewise. * sysdeps/generic/bits/once.h (__PTHREAD_ONCE_INIT): Likewise. * sysdeps/generic/bits/rwlock.h (__PTHREAD_RWLOCK_INITIALIZER): Likewise. * sysdeps/generic/bits/semaphore.h (__SEMAPHORE_INITIALIZER): Likewise. * sysdeps/i386/bits/spin-lock-inline.h (__pthread_spin_init): Likewise. * sysdeps/i386/mach/spin-lock-inline.h (__pthread_spin_init): Likewise.
2009-04-082008-12-21 Samuel Thibault <samuel.thibault@ens-lyon.org>Samuel Thibault
* sysdeps/mach/pt-timedblock.c (__pthread_timedblock): Fix timeout computation from abstime and now.
2009-04-082008-10-02 Neal H. Walfield <neal@gnu.org>Neal H. Walfield
* sysdeps/generic/pt-mutex-timedlock.c (__pthread_mutex_timedlock_internal) [! ALWAYS_TRACK_MUTEX_OWNER]: Don't update MUTEX->OWNER or assert MUTEX->OWNER for normal mutexes. * sysdeps/generic/pt-mutex-unlock.c (__pthread_mutex_unlock) [! ALWAYS_TRACK_MUTEX_OWNER]: Don't update MUTEX->OWNER or assert MUTEX->OWNER for normal mutexes. * sysdeps/generic/pt-mutex-transfer-np.c (__pthread_mutex_transfer_np) [! ALWAYS_TRACK_MUTEX_OWNER]: Don't update MUTEX->OWNER for normal mutexes.
2009-04-082008-08-26 Neal H. Walfield <neal@gnu.org>Neal H. Walfield
* sysdeps/mach/pt-thread-alloc.c (__pthread_thread_alloc): Set THREAD->HAVE_KERNEL_RESOURCES to 1, not true. Reported by Flávio Cruz <Flávio Cruz>.
2009-04-072008-08-16 Neal H. Walfield <neal@gnu.org>Neal H. Walfield
* pthread/pt-alloc.c: Don't include <bits/atomic.h>. (__pthread_free_threads): Change to a struct __pthread *. (__pthread_free_threads_lock): New variable. (__pthread_alloc): When looking for a TCB to reuse, iterate over __pthread_free_threads taking the first for which the STATE field is PTHREAD_TERMINATED. When reusing a TCB, first call __pthread_thread_halt on it. * pthread/pt-dealloc.c: Don't include <bits/atomic.h>. (__pthread_free_threads): Change to a struct __pthread *. (__pthread_free_threads_lock): New declaration. (__pthread_dealloc): Enqueue PTHREAD on __PTHREAD_FREE_THREADS. Set PTHREAD->STATE to PTHREAD_TERMINATED after everything else. * pthread/pt-join.c (pthread_join): Call __pthread_thread_halt before destroying the thread. When destroying the thread, call __pthread_thread_dealloc on it. * pthread/pt-detach.c (pthread_detach): If destroying the thread, call __pthread_thread_halt before deallocating the stack. In this case, also call __pthread_thread_dealloc on the tcb. * pthread/pt-exit.c (pthread_exit): Call __pthread_dealloc only if the thread is detached and then as the last thing we do before calling __pthread_thread_halt. * pthread/pt-internal.h (__pthread_thread_halt): Remove argument NEED_DEALLOC. Update users. * sysdeps/mach/pt-thread-halt.c (__pthread_thread_halt): Remove argument need_dealloc. * sysdeps/mach/hurd/pt-sysdep.h (PTHREAD_SYSDEP_MEMBERS): Add field have_kernel_resources. * sysdeps/mach/hurd/pt-thread-alloc.c (__pthread_thread_alloc): If THREAD->HAVE_KERNEL_RESOURCES is true, just return. After allocating the resources, set THREAD->HAVE_KERNEL_RESOURCES to true.
2009-04-072008-08-12 Neal H. Walfield <neal@gnu.org>Neal H. Walfield
Merge changes from hurd-l4 fork. * Makefile (SRCS): Add pt-startup.c and pt-mutex-transfer-np.c. (sysdeps_headers): Add pthread-np.h. 2008-08-12 Neal H. Walfield <neal@gnu.org> * sysdeps/generic/bits/pthread-np.h: New file. 2008-08-12 Neal H. Walfield <neal@gnu.org> * sysdeps/generic/pt-startup.c: New file. 2008-08-12 Neal H. Walfield <neal@gnu.org> * sysdeps/generic/bits/mutex.h (__PTHREAD_RECURSIVE_MUTEX_INITIALIZER): Define. (__PTHREAD_MUTEX_RECURSIVE_INITIALIZER): Don't define. * include/pthread/pthread.h (PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) [__USE_GNU]: Define. (PTHREAD_MUTEX_RECURSIVE_INITIALIZER_NP): Don't define. 2008-08-12 Neal H. Walfield <neal@gnu.org> * include/pthread/pthread.h: Include <sys/cdefs.h>. (__extern_inline): If not defined, define appropriately. 2008-06-01 Neal H. Walfield <neal@gnu.org> * include/pthread/pthread.h (PTHREAD_MUTEX_RECURSIVE_INITIALIZER_NP): New definition. * sysdeps/generic/bits/mutex.h (__PTHREAD_MUTEX_RECURSIVE_INITIALIZER): New definition. * sysdeps/generic/bits/mutex-attr.h (__pthread_recursive_mutexattr): New definition. * sysdeps/generic/pt-mutexattr.c (__pthread_recursive_mutexattr): New declaration. * sysdeps/generic/pt-mutex-init.c (_pthread_mutex_init): If ATTR is &__PTHREAD_RECURSIVE_MUTEXATTR, don't allocate a copy, just save in MUTEX->ATTR. * sysdeps/generic/pt-mutex-destroy.c (_pthread_mutex_destroy): If MUTEX->ATTR is &__PTHREAD_RECURSIVE_MUTEXATTR, don't free it. 2008-05-29 Thomas Schwinge <tschwinge@gnu.org> * sysdeps/generic/sem-timedwait.c: Don't include <error.h>. 2008-05-21 Neal H. Walfield <neal@gnu.org> * include/pthread/pthread.h: Include <bits/pthread-np.h>. 2008-03-01 Neal H. Walfield <neal@gnu.org> * sysdeps/generic/pt-mutex-transfer-np.c: New file. * pthread/pt-self.c (pthread_self): Assert that SELF is not NULL. 2007-12-23 Neal H. Walfield <neal@gnu.org> * pthread/pt-join.c (pthread_join): Cast argument to pthread_cleanup_push to avoid warning. 2007-11-23 Neal H. Walfield <neal@gnu.org> * pthread/pt-internal.h (__pthread_startup): Add declaration. * pthread/pt-create.c (entry_point): Call __pthread_startup.
2009-04-072008-08-12 Neal H. Walfield <neal@gnu.org>Neal H. Walfield
* sysdeps/generic/bits/pthread-np.h: New file.
2009-04-072006-03-04 Samuel Thibault <samuel.thibault@ens-lyon.org>Neal H. Walfield
* sysdeps/ia32/machine-sp.h (thread_stack_pointer): Optimize esp read.
2009-04-072008-08-12 Neal H. Walfield <neal@gnu.org>Neal H. Walfield
* sysdeps/generic/pt-startup.c (__pthread_startup): New file.
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