2019-01-01 00:11:28 +00:00
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/* Copyright (C) 2002-2019 Free Software Foundation, Inc.
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Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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2012-02-09 23:18:22 +00:00
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
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2008-12-12 18:46:28 +00:00
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#include <assert.h>
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Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
#include <errno.h>
|
2005-12-27 01:04:06 +00:00
|
|
|
#include <stdlib.h>
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
#include "pthreadP.h"
|
|
|
|
#include <lowlevellock.h>
|
2012-05-25 20:35:08 +00:00
|
|
|
#include <stap-probe.h>
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
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2012-12-22 09:03:04 +00:00
|
|
|
#ifndef lll_unlock_elision
|
2015-09-03 18:40:11 +00:00
|
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|
#define lll_unlock_elision(a,b,c) ({ lll_unlock (a,c); 0; })
|
2012-12-22 09:03:04 +00:00
|
|
|
#endif
|
|
|
|
|
2008-12-12 18:46:28 +00:00
|
|
|
static int
|
|
|
|
__pthread_mutex_unlock_full (pthread_mutex_t *mutex, int decr)
|
|
|
|
__attribute_noinline__;
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
|
|
|
|
int
|
2017-08-31 15:50:26 +00:00
|
|
|
attribute_hidden
|
2015-10-20 11:54:09 +00:00
|
|
|
__pthread_mutex_unlock_usercnt (pthread_mutex_t *mutex, int decr)
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
{
|
2018-10-17 10:23:04 +00:00
|
|
|
/* See concurrency notes regarding mutex type which is loaded from __kind
|
|
|
|
in struct __pthread_mutex_s in sysdeps/nptl/bits/thread-shared-types.h. */
|
2012-12-22 09:03:04 +00:00
|
|
|
int type = PTHREAD_MUTEX_TYPE_ELISION (mutex);
|
2019-02-25 13:19:19 +00:00
|
|
|
if (__builtin_expect (type
|
|
|
|
& ~(PTHREAD_MUTEX_KIND_MASK_NP
|
|
|
|
|PTHREAD_MUTEX_ELISION_FLAGS_NP), 0))
|
2008-12-12 18:46:28 +00:00
|
|
|
return __pthread_mutex_unlock_full (mutex, decr);
|
2005-12-27 01:04:06 +00:00
|
|
|
|
2008-12-12 18:46:28 +00:00
|
|
|
if (__builtin_expect (type, PTHREAD_MUTEX_TIMED_NP)
|
|
|
|
== PTHREAD_MUTEX_TIMED_NP)
|
|
|
|
{
|
|
|
|
/* Always reset the owner field. */
|
|
|
|
normal:
|
|
|
|
mutex->__data.__owner = 0;
|
|
|
|
if (decr)
|
|
|
|
/* One less user. */
|
|
|
|
--mutex->__data.__nusers;
|
|
|
|
|
|
|
|
/* Unlock. */
|
|
|
|
lll_unlock (mutex->__data.__lock, PTHREAD_MUTEX_PSHARED (mutex));
|
2012-05-25 20:35:08 +00:00
|
|
|
|
|
|
|
LIBC_PROBE (mutex_release, 1, mutex);
|
|
|
|
|
2008-12-12 18:46:28 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2014-02-10 13:45:42 +00:00
|
|
|
else if (__glibc_likely (type == PTHREAD_MUTEX_TIMED_ELISION_NP))
|
2012-12-22 09:03:04 +00:00
|
|
|
{
|
|
|
|
/* Don't reset the owner/users fields for elision. */
|
2015-09-03 18:40:11 +00:00
|
|
|
return lll_unlock_elision (mutex->__data.__lock, mutex->__data.__elision,
|
2012-12-22 09:03:04 +00:00
|
|
|
PTHREAD_MUTEX_PSHARED (mutex));
|
|
|
|
}
|
|
|
|
else if (__builtin_expect (PTHREAD_MUTEX_TYPE (mutex)
|
|
|
|
== PTHREAD_MUTEX_RECURSIVE_NP, 1))
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
{
|
|
|
|
/* Recursive mutex. */
|
2003-06-22 23:55:27 +00:00
|
|
|
if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid))
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
return EPERM;
|
|
|
|
|
|
|
|
if (--mutex->__data.__count != 0)
|
|
|
|
/* We still hold the mutex. */
|
|
|
|
return 0;
|
2006-02-15 17:20:33 +00:00
|
|
|
goto normal;
|
2008-12-12 18:46:28 +00:00
|
|
|
}
|
2012-12-22 09:03:04 +00:00
|
|
|
else if (__builtin_expect (PTHREAD_MUTEX_TYPE (mutex)
|
|
|
|
== PTHREAD_MUTEX_ADAPTIVE_NP, 1))
|
2008-12-12 18:46:28 +00:00
|
|
|
goto normal;
|
|
|
|
else
|
|
|
|
{
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
/* Error checking mutex. */
|
2008-12-12 18:46:28 +00:00
|
|
|
assert (type == PTHREAD_MUTEX_ERRORCHECK_NP);
|
2003-06-22 23:55:27 +00:00
|
|
|
if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid)
|
* sysdeps/unix/sysv/linux/powerpc/sem_post.c (__new_sem_post):
Use __asm __volatile (__lll_acq_instr ::: "memory") instead of
atomic_full_barrier.
2007-07-31 Jakub Jelinek <jakub@redhat.com>
* allocatestack.c (stack_cache_lock): Change type to int.
(get_cached_stack, allocate_stack, __deallocate_stack,
__make_stacks_executable, __find_thread_by_id, __nptl_setxid,
__pthread_init_static_tls, __wait_lookup_done): Add LLL_PRIVATE
as second argument to lll_lock and lll_unlock macros on
stack_cache_lock.
* pthread_create.c (__find_in_stack_list): Likewise.
(start_thread): Similarly with pd->lock. Use lll_robust_dead
macro instead of lll_robust_mutex_dead, pass LLL_SHARED to it
as second argument.
* descr.h (struct pthread): Change lock and setxid_futex field
type to int.
* old_pthread_cond_broadcast.c (__pthread_cond_broadcast_2_0): Use
LLL_LOCK_INITIALIZER instead of LLL_MUTEX_LOCK_INITIALIZER.
* old_pthread_cond_signal.c (__pthread_cond_signal_2_0): Likewise.
* old_pthread_cond_timedwait.c (__pthread_cond_timedwait_2_0):
Likewise.
* old_pthread_cond_wait.c (__pthread_cond_wait_2_0): Likewise.
* pthread_cond_init.c (__pthread_cond_init): Likewise.
* pthreadP.h (__attr_list_lock): Change type to int.
* pthread_attr_init.c (__attr_list_lock): Likewise.
* pthread_barrier_destroy.c (pthread_barrier_destroy): Pass
ibarrier->private ^ FUTEX_PRIVATE_FLAG as second argument to
lll_{,un}lock.
* pthread_barrier_wait.c (pthread_barrier_wait): Likewise and
also for lll_futex_{wake,wait}.
* pthread_barrier_init.c (pthread_barrier_init): Make iattr
a pointer to const.
* pthread_cond_broadcast.c (__pthread_cond_broadcast): Pass
LLL_SHARED as second argument to lll_{,un}lock.
* pthread_cond_destroy.c (__pthread_cond_destroy): Likewise.
* pthread_cond_signal.c (__pthread_cond_singal): Likewise.
* pthread_cond_timedwait.c (__pthread_cond_timedwait): Likewise.
* pthread_cond_wait.c (__condvar_cleanup, __pthread_cond_wait):
Likewise.
* pthread_getattr_np.c (pthread_getattr_np): Add LLL_PRIVATE
as second argument to lll_{,un}lock macros on pd->lock.
* pthread_getschedparam.c (__pthread_getschedparam): Likewise.
* pthread_setschedparam.c (__pthread_setschedparam): Likewise.
* pthread_setschedprio.c (pthread_setschedprio): Likewise.
* tpp.c (__pthread_tpp_change_priority, __pthread_current_priority):
Likewise.
* sysdeps/pthread/createthread.c (do_clone, create_thread):
Likewise.
* pthread_once.c (once_lock): Change type to int.
(__pthread_once): Pass LLL_PRIVATE as second argument to
lll_{,un}lock macros on once_lock.
* pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock): Use
lll_{,un}lock macros instead of lll_mutex_{,un}lock, pass
rwlock->__data.__shared as second argument to them and similarly
for lll_futex_w*.
* pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock):
Likewise.
* pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock):
Likewise.
* pthread_rwlock_tryrdlock.c (__pthread_rwlock_tryrdlock): Likewise.
* pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock): Likewise.
* pthread_rwlock_unlock.c (__pthread_rwlock_unlock): Likewise.
* pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Likewise.
* sem_close.c (sem_close): Pass LLL_PRIVATE as second argument
to lll_{,un}lock macros on __sem_mappings_lock.
* sem_open.c (check_add_mapping): Likewise.
(__sem_mappings_lock): Change type to int.
* semaphoreP.h (__sem_mappings_lock): Likewise.
* pthread_mutex_lock.c (LLL_MUTEX_LOCK, LLL_MUTEX_TRYLOCK,
LLL_ROBUST_MUTEX_LOCK): Use lll_{,try,robust_}lock macros
instead of lll_*mutex_*, pass LLL_SHARED as last
argument.
(__pthread_mutex_lock): Use lll_unlock instead of lll_mutex_unlock,
pass LLL_SHARED as last argument.
* sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c (LLL_MUTEX_LOCK,
LLL_MUTEX_TRYLOCK, LLL_ROBUST_MUTEX_LOCK): Use
lll_{cond_,cond_try,robust_cond}lock macros instead of lll_*mutex_*,
pass LLL_SHARED as last argument.
* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Use
lll_{timed,try,robust_timed,un}lock instead of lll_*mutex*, pass
LLL_SHARED as last argument.
* pthread_mutex_trylock.c (__pthread_mutex_trylock): Similarly.
* pthread_mutex_unlock.c (__pthread_mutex_unlock_usercnt):
Similarly.
* sysdeps/pthread/bits/libc-lock.h (__libc_lock_lock,
__libc_lock_lock_recursive, __libc_lock_unlock,
__libc_lock_unlock_recursive): Pass LLL_PRIVATE as second
argument to lll_{,un}lock.
* sysdeps/pthread/bits/stdio-lock.h (_IO_lock_lock,
_IO_lock_unlock): Likewise.
* sysdeps/unix/sysv/linux/fork.c (__libc_fork): Don't use
compound literal.
* sysdeps/unix/sysv/linux/unregister-atfork.c (__unregister_atfork):
Pass LLL_PRIVATE as second argument to lll_{,un}lock macros on
__fork_lock.
* sysdeps/unix/sysv/linux/register-atfork.c (__register_atfork,
free_mem): Likewise.
(__fork_lock): Change type to int.
* sysdeps/unix/sysv/linux/fork.h (__fork_lock): Likewise.
* sysdeps/unix/sysv/linux/sem_post.c (__new_sem_post): Pass
isem->private ^ FUTEX_PRIVATE_FLAG as second argument to
lll_futex_wake.
* sysdeps/unix/sysv/linux/sem_timedwait.c (sem_timedwait): Likewise.
* sysdeps/unix/sysv/linux/sem_wait.c (__new_sem_wait): Likewise.
* sysdeps/unix/sysv/linux/lowlevellock.c (__lll_lock_wait_private):
New function.
(__lll_lock_wait, __lll_timedlock_wait): Add private argument and
pass it through to lll_futex_*wait, only compile in when
IS_IN_libpthread.
* sysdeps/unix/sysv/linux/lowlevelrobustlock.c
(__lll_robust_lock_wait, __lll_robust_timedlock_wait): Add private
argument and pass it through to lll_futex_*wait.
* sysdeps/unix/sysv/linux/alpha/lowlevellock.h: Renamed all
lll_mutex_* resp. lll_robust_mutex_* macros to lll_* resp.
lll_robust_*. Renamed all __lll_mutex_* resp. __lll_robust_mutex_*
inline functions to __lll_* resp. __lll_robust_*.
(LLL_MUTEX_LOCK_INITIALIZER): Remove.
(lll_mutex_dead): Add private argument.
(__lll_lock_wait_private): New prototype.
(__lll_lock_wait, __lll_robust_lock_wait, __lll_lock_timedwait,
__lll_robust_lock_timedwait): Add private argument to prototypes.
(__lll_lock): Add private argument, if it is constant LLL_PRIVATE,
call __lll_lock_wait_private, otherwise pass private to
__lll_lock_wait.
(__lll_robust_lock, __lll_cond_lock, __lll_timedlock,
__lll_robust_timedlock): Add private argument, pass it to
__lll_*wait functions.
(__lll_unlock): Add private argument, if it is constant LLL_PRIVATE,
call __lll_unlock_wake_private, otherwise pass private to
__lll_unlock_wake.
(__lll_robust_unlock): Add private argument, pass it to
__lll_robust_unlock_wake.
(lll_lock, lll_robust_lock, lll_cond_lock, lll_timedlock,
lll_robust_timedlock, lll_unlock, lll_robust_unlock): Add private
argument, pass it through to __lll_* inline function.
(__lll_mutex_unlock_force, lll_mutex_unlock_force): Remove.
(lll_lock_t): Remove.
(__lll_cond_wait, __lll_cond_timedwait, __lll_cond_wake,
__lll_cond_broadcast, lll_cond_wait, lll_cond_timedwait,
lll_cond_wake, lll_cond_broadcast): Remove.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Allow including
the header from assembler. Renamed all lll_mutex_* resp.
lll_robust_mutex_* macros to lll_* resp. lll_robust_*.
(LOCK, FUTEX_CMP_REQUEUE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(LLL_MUTEX_LOCK_INITIALIZER, LLL_MUTEX_LOCK_INITIALIZER_LOCKED,
LLL_MUTEX_LOCK_INITIALIZER_WAITERS): Remove.
(__lll_mutex_lock_wait, __lll_mutex_timedlock_wait,
__lll_mutex_unlock_wake, __lll_lock_wait, __lll_unlock_wake):
Remove prototype.
(__lll_trylock_asm, __lll_lock_asm_start, __lll_unlock_asm): Define.
(lll_robust_trylock, lll_cond_trylock): Use LLL_LOCK_INITIALIZER*
rather than LLL_MUTEX_LOCK_INITIALIZER* macros.
(lll_trylock): Likewise, use __lll_trylock_asm, pass
MULTIPLE_THREADS_OFFSET as another asm operand.
(lll_lock): Add private argument, use __lll_lock_asm_start, pass
MULTIPLE_THREADS_OFFSET as last asm operand, call
__lll_lock_wait_private if private is constant LLL_PRIVATE,
otherwise pass private as another argument to __lll_lock_wait.
(lll_robust_lock, lll_cond_lock, lll_robust_cond_lock,
lll_timedlock, lll_robust_timedlock): Add private argument, pass
private as another argument to __lll_*lock_wait call.
(lll_unlock): Add private argument, use __lll_unlock_asm, pass
MULTIPLE_THREADS_OFFSET as another asm operand, call
__lll_unlock_wake_private if private is constant LLL_PRIVATE,
otherwise pass private as another argument to __lll_unlock_wake.
(lll_robust_unlock): Add private argument, pass private as another
argument to __lll_unlock_wake.
(lll_robust_dead): Add private argument, use __lll_private_flag
macro.
(lll_islocked): Use LLL_LOCK_INITIALIZER instead of
LLL_MUTEX_LOCK_INITIALIZER.
(lll_lock_t): Remove.
(LLL_LOCK_INITIALIZER_WAITERS): Define.
(__lll_cond_wait, __lll_cond_timedwait, __lll_cond_wake,
__lll_cond_broadcast, lll_cond_wait, lll_cond_timedwait,
lll_cond_wake, lll_cond_broadcast): Remove.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Revert
2007-05-2{3,9} changes.
* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_PRIVATE_FUTEX_WAIT): Define.
(LOAD_FUTEX_WAIT): Rewritten.
(LOCK, SYS_gettimeofday, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't
define.
(__lll_lock_wait_private, __lll_unlock_wake_private): New functions.
(__lll_mutex_lock_wait): Rename to ...
(__lll_lock_wait): ... this. Take futex addr from %edx instead of
%ecx, %ecx is now private argument. Don't compile in for libc.so.
(__lll_mutex_timedlock_wait): Rename to ...
(__lll_timedlock_wait): ... this. Use __NR_gettimeofday. %esi
contains private argument. Don't compile in for libc.so.
(__lll_mutex_unlock_wake): Rename to ...
(__lll_unlock_wake): ... this. %ecx contains private argument.
Don't compile in for libc.so.
(__lll_timedwait_tid): Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_FUTEX_WAIT): Define.
(LOCK, SYS_gettimeofday, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't
define.
(__lll_robust_mutex_lock_wait): Rename to ...
(__lll_robust_lock_wait): ... this. Futex addr is now in %edx
argument, %ecx argument contains private. Use LOAD_FUTEX_WAIT
macro.
(__lll_robust_mutex_timedlock_wait): Rename to ...
(__lll_robust_timedlock_wait): ... this. Use __NR_gettimeofday.
%esi argument contains private, use LOAD_FUTEX_WAIT macro.
* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Include
lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(pthread_barrier_wait): Rename __lll_mutex_* to __lll_*, pass
PRIVATE(%ebx) ^ LLL_SHARED as private argument in %ecx to
__lll_lock_wait and __lll_unlock_wake, pass MUTEX(%ebx) address
to __lll_lock_wait in %edx.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE,
FUTEX_CMP_REQUEUE, EINVAL, LOCK): Don't define.
(__pthread_cond_broadcast): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, EINVAL, LOCK): Don't define.
(__pthread_cond_signal): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_cond_timedwait): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_wait, __condvar_w_cleanup): Rename __lll_mutex_*
to __lll_*, pass cond_lock address in %edx rather than %ecx to
__lll_lock_wait, pass LLL_SHARED in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_rdlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebx) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebx) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebp) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebp) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebp) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebp) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_unlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%edi) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%edi) in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebx) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebx) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG): Don't
define.
* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Include lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAKE): Don't define.
* sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, SYS_gettimeofday, FUTEX_WAIT): Don't define.
(sem_timedwait): Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S: Include
lowlevellock.h.
(LOCK): Don't define.
* sysdeps/unix/sysv/linux/i386/i486/sem_wait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/powerpc/sem_post.c: Wake only when there
are waiters.
* sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S: Revert
2007-05-2{3,9} changes.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_PRIVATE_FUTEX_WAIT): Define.
(LOAD_FUTEX_WAIT): Rewritten.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't define.
(__lll_lock_wait_private, __lll_unlock_wake_private): New functions.
(__lll_mutex_lock_wait): Rename to ...
(__lll_lock_wait): ... this. %esi is now private argument.
Don't compile in for libc.so.
(__lll_mutex_timedlock_wait): Rename to ...
(__lll_timedlock_wait): ... this. %esi contains private argument.
Don't compile in for libc.so.
(__lll_mutex_unlock_wake): Rename to ...
(__lll_unlock_wake): ... this. %esi contains private argument.
Don't compile in for libc.so.
* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_FUTEX_WAIT): Define.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't define.
(__lll_robust_mutex_lock_wait): Rename to ...
(__lll_robust_lock_wait): ... this. %esi argument contains private.
Use LOAD_FUTEX_WAIT macro.
(__lll_robust_mutex_timedlock_wait): Rename to ...
(__lll_robust_timedlock_wait): ... this. %esi argument contains
private, use LOAD_FUTEX_WAIT macro.
* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Include
lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(pthread_barrier_wait): Rename __lll_mutex_* to __lll_*, pass
PRIVATE(%rdi) ^ LLL_SHARED as private argument in %esi to
__lll_lock_wait and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE,
FUTEX_CMP_REQUEUE, EINVAL, LOCK): Don't define.
(__pthread_cond_broadcast): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, EINVAL, LOCK): Don't define.
(__pthread_cond_signal): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_timedwait): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_wait, __condvar_cleanup): Rename __lll_mutex_*
to __lll_*, pass LLL_SHARED in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_rdlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_unlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_once.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG): Don't
define.
* sysdeps/unix/sysv/linux/x86_64/sem_post.S: Include lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAKE): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: Include
lowlevellock.h.
(LOCK): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/sparc/internaltypes.h: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_destroy.c: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_init.c: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_wait.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
(__lll_lock_wait_private): New function.
(__lll_lock_wait, __lll_timedlock_wait): Add private argument, pass
it to lll_futex_*wait. Don't compile in for libc.so.
* sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_init.c:
Remove.
* sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c
(struct sparc_pthread_barrier): Remove.
(pthread_barrier_wait): Use union sparc_pthread_barrier instead of
struct sparc_pthread_barrier. Pass
ibarrier->s.pshared ? LLL_SHARED : LLL_PRIVATE to lll_{,un}lock
and lll_futex_wait macros.
* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_init.c:
Remove.
* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c:
Include sparc pthread_barrier_wait.c instead of generic one.
2007-08-01 04:47:26 +00:00
|
|
|
|| ! lll_islocked (mutex->__data.__lock))
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
return EPERM;
|
2008-12-12 18:46:28 +00:00
|
|
|
goto normal;
|
|
|
|
}
|
|
|
|
}
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
|
2006-02-15 17:20:33 +00:00
|
|
|
|
2008-12-12 18:46:28 +00:00
|
|
|
static int
|
|
|
|
__pthread_mutex_unlock_full (pthread_mutex_t *mutex, int decr)
|
|
|
|
{
|
|
|
|
int newowner = 0;
|
robust mutexes: Fix broken x86 assembly by removing it
lll_robust_unlock on i386 and x86_64 first sets the futex word to
FUTEX_WAITERS|0 before calling __lll_unlock_wake, which will set the
futex word to 0. If the thread is killed between these steps, then the
futex word will be FUTEX_WAITERS|0, and the kernel (at least current
upstream) will not set it to FUTEX_OWNER_DIED|FUTEX_WAITERS because 0 is
not equal to the TID of the crashed thread.
The lll_robust_lock assembly code on i386 and x86_64 is not prepared to
deal with this case because the fastpath tries to only CAS 0 to TID and
not FUTEX_WAITERS|0 to TID; the slowpath simply waits until it can CAS 0
to TID or the futex_word has the FUTEX_OWNER_DIED bit set.
This issue is fixed by removing the custom x86 assembly code and using
the generic C code instead. However, instead of adding more duplicate
code to the custom x86 lowlevellock.h, the code of the lll_robust* functions
is inlined into the single call sites that exist for each of these functions
in the pthread_mutex_* functions. The robust mutex paths in the latter
have been slightly reorganized to make them simpler.
This patch is meant to be easy to backport, so C11-style atomics are not
used.
[BZ #20985]
* nptl/Makefile: Adapt.
* nptl/pthread_mutex_cond_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove.
(LLL_ROBUST_MUTEX_LOCK_MODIFIER): New.
* nptl/pthread_mutex_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove.
(LLL_ROBUST_MUTEX_LOCK_MODIFIER): New.
(__pthread_mutex_lock_full): Inline lll_robust* functions and adapt.
* nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Inline
lll_robust* functions and adapt.
* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock_full): Likewise.
* sysdeps/nptl/lowlevellock.h (__lll_robust_lock_wait,
__lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait,
__lll_robust_timedlock, __lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h (lll_robust_lock,
lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (lll_robust_lock,
lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (__lll_robust_lock_wait,
__lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait,
__lll_robust_timedlock, __lll_robust_unlock): Remove.
* nptl/lowlevelrobustlock.c: Remove file.
* nptl/lowlevelrobustlock.sym: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevelrobustlock.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Likewise.
2016-12-22 09:20:43 +00:00
|
|
|
int private;
|
2005-12-23 23:49:41 +00:00
|
|
|
|
2008-12-12 18:46:28 +00:00
|
|
|
switch (PTHREAD_MUTEX_TYPE (mutex))
|
|
|
|
{
|
2006-03-28 04:25:17 +00:00
|
|
|
case PTHREAD_MUTEX_ROBUST_RECURSIVE_NP:
|
2005-12-27 01:04:06 +00:00
|
|
|
/* Recursive mutex. */
|
2006-02-15 17:20:33 +00:00
|
|
|
if ((mutex->__data.__lock & FUTEX_TID_MASK)
|
2006-03-28 04:25:17 +00:00
|
|
|
== THREAD_GETMEM (THREAD_SELF, tid)
|
|
|
|
&& __builtin_expect (mutex->__data.__owner
|
|
|
|
== PTHREAD_MUTEX_INCONSISTENT, 0))
|
2005-12-27 01:04:06 +00:00
|
|
|
{
|
|
|
|
if (--mutex->__data.__count != 0)
|
|
|
|
/* We still hold the mutex. */
|
|
|
|
return ENOTRECOVERABLE;
|
|
|
|
|
|
|
|
goto notrecoverable;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid))
|
|
|
|
return EPERM;
|
|
|
|
|
|
|
|
if (--mutex->__data.__count != 0)
|
|
|
|
/* We still hold the mutex. */
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
goto robust;
|
|
|
|
|
2006-03-28 04:25:17 +00:00
|
|
|
case PTHREAD_MUTEX_ROBUST_ERRORCHECK_NP:
|
|
|
|
case PTHREAD_MUTEX_ROBUST_NORMAL_NP:
|
|
|
|
case PTHREAD_MUTEX_ROBUST_ADAPTIVE_NP:
|
2006-02-15 17:20:33 +00:00
|
|
|
if ((mutex->__data.__lock & FUTEX_TID_MASK)
|
|
|
|
!= THREAD_GETMEM (THREAD_SELF, tid)
|
* sysdeps/unix/sysv/linux/powerpc/sem_post.c (__new_sem_post):
Use __asm __volatile (__lll_acq_instr ::: "memory") instead of
atomic_full_barrier.
2007-07-31 Jakub Jelinek <jakub@redhat.com>
* allocatestack.c (stack_cache_lock): Change type to int.
(get_cached_stack, allocate_stack, __deallocate_stack,
__make_stacks_executable, __find_thread_by_id, __nptl_setxid,
__pthread_init_static_tls, __wait_lookup_done): Add LLL_PRIVATE
as second argument to lll_lock and lll_unlock macros on
stack_cache_lock.
* pthread_create.c (__find_in_stack_list): Likewise.
(start_thread): Similarly with pd->lock. Use lll_robust_dead
macro instead of lll_robust_mutex_dead, pass LLL_SHARED to it
as second argument.
* descr.h (struct pthread): Change lock and setxid_futex field
type to int.
* old_pthread_cond_broadcast.c (__pthread_cond_broadcast_2_0): Use
LLL_LOCK_INITIALIZER instead of LLL_MUTEX_LOCK_INITIALIZER.
* old_pthread_cond_signal.c (__pthread_cond_signal_2_0): Likewise.
* old_pthread_cond_timedwait.c (__pthread_cond_timedwait_2_0):
Likewise.
* old_pthread_cond_wait.c (__pthread_cond_wait_2_0): Likewise.
* pthread_cond_init.c (__pthread_cond_init): Likewise.
* pthreadP.h (__attr_list_lock): Change type to int.
* pthread_attr_init.c (__attr_list_lock): Likewise.
* pthread_barrier_destroy.c (pthread_barrier_destroy): Pass
ibarrier->private ^ FUTEX_PRIVATE_FLAG as second argument to
lll_{,un}lock.
* pthread_barrier_wait.c (pthread_barrier_wait): Likewise and
also for lll_futex_{wake,wait}.
* pthread_barrier_init.c (pthread_barrier_init): Make iattr
a pointer to const.
* pthread_cond_broadcast.c (__pthread_cond_broadcast): Pass
LLL_SHARED as second argument to lll_{,un}lock.
* pthread_cond_destroy.c (__pthread_cond_destroy): Likewise.
* pthread_cond_signal.c (__pthread_cond_singal): Likewise.
* pthread_cond_timedwait.c (__pthread_cond_timedwait): Likewise.
* pthread_cond_wait.c (__condvar_cleanup, __pthread_cond_wait):
Likewise.
* pthread_getattr_np.c (pthread_getattr_np): Add LLL_PRIVATE
as second argument to lll_{,un}lock macros on pd->lock.
* pthread_getschedparam.c (__pthread_getschedparam): Likewise.
* pthread_setschedparam.c (__pthread_setschedparam): Likewise.
* pthread_setschedprio.c (pthread_setschedprio): Likewise.
* tpp.c (__pthread_tpp_change_priority, __pthread_current_priority):
Likewise.
* sysdeps/pthread/createthread.c (do_clone, create_thread):
Likewise.
* pthread_once.c (once_lock): Change type to int.
(__pthread_once): Pass LLL_PRIVATE as second argument to
lll_{,un}lock macros on once_lock.
* pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock): Use
lll_{,un}lock macros instead of lll_mutex_{,un}lock, pass
rwlock->__data.__shared as second argument to them and similarly
for lll_futex_w*.
* pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock):
Likewise.
* pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock):
Likewise.
* pthread_rwlock_tryrdlock.c (__pthread_rwlock_tryrdlock): Likewise.
* pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock): Likewise.
* pthread_rwlock_unlock.c (__pthread_rwlock_unlock): Likewise.
* pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Likewise.
* sem_close.c (sem_close): Pass LLL_PRIVATE as second argument
to lll_{,un}lock macros on __sem_mappings_lock.
* sem_open.c (check_add_mapping): Likewise.
(__sem_mappings_lock): Change type to int.
* semaphoreP.h (__sem_mappings_lock): Likewise.
* pthread_mutex_lock.c (LLL_MUTEX_LOCK, LLL_MUTEX_TRYLOCK,
LLL_ROBUST_MUTEX_LOCK): Use lll_{,try,robust_}lock macros
instead of lll_*mutex_*, pass LLL_SHARED as last
argument.
(__pthread_mutex_lock): Use lll_unlock instead of lll_mutex_unlock,
pass LLL_SHARED as last argument.
* sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c (LLL_MUTEX_LOCK,
LLL_MUTEX_TRYLOCK, LLL_ROBUST_MUTEX_LOCK): Use
lll_{cond_,cond_try,robust_cond}lock macros instead of lll_*mutex_*,
pass LLL_SHARED as last argument.
* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Use
lll_{timed,try,robust_timed,un}lock instead of lll_*mutex*, pass
LLL_SHARED as last argument.
* pthread_mutex_trylock.c (__pthread_mutex_trylock): Similarly.
* pthread_mutex_unlock.c (__pthread_mutex_unlock_usercnt):
Similarly.
* sysdeps/pthread/bits/libc-lock.h (__libc_lock_lock,
__libc_lock_lock_recursive, __libc_lock_unlock,
__libc_lock_unlock_recursive): Pass LLL_PRIVATE as second
argument to lll_{,un}lock.
* sysdeps/pthread/bits/stdio-lock.h (_IO_lock_lock,
_IO_lock_unlock): Likewise.
* sysdeps/unix/sysv/linux/fork.c (__libc_fork): Don't use
compound literal.
* sysdeps/unix/sysv/linux/unregister-atfork.c (__unregister_atfork):
Pass LLL_PRIVATE as second argument to lll_{,un}lock macros on
__fork_lock.
* sysdeps/unix/sysv/linux/register-atfork.c (__register_atfork,
free_mem): Likewise.
(__fork_lock): Change type to int.
* sysdeps/unix/sysv/linux/fork.h (__fork_lock): Likewise.
* sysdeps/unix/sysv/linux/sem_post.c (__new_sem_post): Pass
isem->private ^ FUTEX_PRIVATE_FLAG as second argument to
lll_futex_wake.
* sysdeps/unix/sysv/linux/sem_timedwait.c (sem_timedwait): Likewise.
* sysdeps/unix/sysv/linux/sem_wait.c (__new_sem_wait): Likewise.
* sysdeps/unix/sysv/linux/lowlevellock.c (__lll_lock_wait_private):
New function.
(__lll_lock_wait, __lll_timedlock_wait): Add private argument and
pass it through to lll_futex_*wait, only compile in when
IS_IN_libpthread.
* sysdeps/unix/sysv/linux/lowlevelrobustlock.c
(__lll_robust_lock_wait, __lll_robust_timedlock_wait): Add private
argument and pass it through to lll_futex_*wait.
* sysdeps/unix/sysv/linux/alpha/lowlevellock.h: Renamed all
lll_mutex_* resp. lll_robust_mutex_* macros to lll_* resp.
lll_robust_*. Renamed all __lll_mutex_* resp. __lll_robust_mutex_*
inline functions to __lll_* resp. __lll_robust_*.
(LLL_MUTEX_LOCK_INITIALIZER): Remove.
(lll_mutex_dead): Add private argument.
(__lll_lock_wait_private): New prototype.
(__lll_lock_wait, __lll_robust_lock_wait, __lll_lock_timedwait,
__lll_robust_lock_timedwait): Add private argument to prototypes.
(__lll_lock): Add private argument, if it is constant LLL_PRIVATE,
call __lll_lock_wait_private, otherwise pass private to
__lll_lock_wait.
(__lll_robust_lock, __lll_cond_lock, __lll_timedlock,
__lll_robust_timedlock): Add private argument, pass it to
__lll_*wait functions.
(__lll_unlock): Add private argument, if it is constant LLL_PRIVATE,
call __lll_unlock_wake_private, otherwise pass private to
__lll_unlock_wake.
(__lll_robust_unlock): Add private argument, pass it to
__lll_robust_unlock_wake.
(lll_lock, lll_robust_lock, lll_cond_lock, lll_timedlock,
lll_robust_timedlock, lll_unlock, lll_robust_unlock): Add private
argument, pass it through to __lll_* inline function.
(__lll_mutex_unlock_force, lll_mutex_unlock_force): Remove.
(lll_lock_t): Remove.
(__lll_cond_wait, __lll_cond_timedwait, __lll_cond_wake,
__lll_cond_broadcast, lll_cond_wait, lll_cond_timedwait,
lll_cond_wake, lll_cond_broadcast): Remove.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Allow including
the header from assembler. Renamed all lll_mutex_* resp.
lll_robust_mutex_* macros to lll_* resp. lll_robust_*.
(LOCK, FUTEX_CMP_REQUEUE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(LLL_MUTEX_LOCK_INITIALIZER, LLL_MUTEX_LOCK_INITIALIZER_LOCKED,
LLL_MUTEX_LOCK_INITIALIZER_WAITERS): Remove.
(__lll_mutex_lock_wait, __lll_mutex_timedlock_wait,
__lll_mutex_unlock_wake, __lll_lock_wait, __lll_unlock_wake):
Remove prototype.
(__lll_trylock_asm, __lll_lock_asm_start, __lll_unlock_asm): Define.
(lll_robust_trylock, lll_cond_trylock): Use LLL_LOCK_INITIALIZER*
rather than LLL_MUTEX_LOCK_INITIALIZER* macros.
(lll_trylock): Likewise, use __lll_trylock_asm, pass
MULTIPLE_THREADS_OFFSET as another asm operand.
(lll_lock): Add private argument, use __lll_lock_asm_start, pass
MULTIPLE_THREADS_OFFSET as last asm operand, call
__lll_lock_wait_private if private is constant LLL_PRIVATE,
otherwise pass private as another argument to __lll_lock_wait.
(lll_robust_lock, lll_cond_lock, lll_robust_cond_lock,
lll_timedlock, lll_robust_timedlock): Add private argument, pass
private as another argument to __lll_*lock_wait call.
(lll_unlock): Add private argument, use __lll_unlock_asm, pass
MULTIPLE_THREADS_OFFSET as another asm operand, call
__lll_unlock_wake_private if private is constant LLL_PRIVATE,
otherwise pass private as another argument to __lll_unlock_wake.
(lll_robust_unlock): Add private argument, pass private as another
argument to __lll_unlock_wake.
(lll_robust_dead): Add private argument, use __lll_private_flag
macro.
(lll_islocked): Use LLL_LOCK_INITIALIZER instead of
LLL_MUTEX_LOCK_INITIALIZER.
(lll_lock_t): Remove.
(LLL_LOCK_INITIALIZER_WAITERS): Define.
(__lll_cond_wait, __lll_cond_timedwait, __lll_cond_wake,
__lll_cond_broadcast, lll_cond_wait, lll_cond_timedwait,
lll_cond_wake, lll_cond_broadcast): Remove.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Revert
2007-05-2{3,9} changes.
* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_PRIVATE_FUTEX_WAIT): Define.
(LOAD_FUTEX_WAIT): Rewritten.
(LOCK, SYS_gettimeofday, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't
define.
(__lll_lock_wait_private, __lll_unlock_wake_private): New functions.
(__lll_mutex_lock_wait): Rename to ...
(__lll_lock_wait): ... this. Take futex addr from %edx instead of
%ecx, %ecx is now private argument. Don't compile in for libc.so.
(__lll_mutex_timedlock_wait): Rename to ...
(__lll_timedlock_wait): ... this. Use __NR_gettimeofday. %esi
contains private argument. Don't compile in for libc.so.
(__lll_mutex_unlock_wake): Rename to ...
(__lll_unlock_wake): ... this. %ecx contains private argument.
Don't compile in for libc.so.
(__lll_timedwait_tid): Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_FUTEX_WAIT): Define.
(LOCK, SYS_gettimeofday, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't
define.
(__lll_robust_mutex_lock_wait): Rename to ...
(__lll_robust_lock_wait): ... this. Futex addr is now in %edx
argument, %ecx argument contains private. Use LOAD_FUTEX_WAIT
macro.
(__lll_robust_mutex_timedlock_wait): Rename to ...
(__lll_robust_timedlock_wait): ... this. Use __NR_gettimeofday.
%esi argument contains private, use LOAD_FUTEX_WAIT macro.
* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Include
lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(pthread_barrier_wait): Rename __lll_mutex_* to __lll_*, pass
PRIVATE(%ebx) ^ LLL_SHARED as private argument in %ecx to
__lll_lock_wait and __lll_unlock_wake, pass MUTEX(%ebx) address
to __lll_lock_wait in %edx.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE,
FUTEX_CMP_REQUEUE, EINVAL, LOCK): Don't define.
(__pthread_cond_broadcast): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, EINVAL, LOCK): Don't define.
(__pthread_cond_signal): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_cond_timedwait): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_wait, __condvar_w_cleanup): Rename __lll_mutex_*
to __lll_*, pass cond_lock address in %edx rather than %ecx to
__lll_lock_wait, pass LLL_SHARED in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_rdlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebx) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebx) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebp) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebp) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebp) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebp) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_unlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%edi) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%edi) in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebx) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebx) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG): Don't
define.
* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Include lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAKE): Don't define.
* sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, SYS_gettimeofday, FUTEX_WAIT): Don't define.
(sem_timedwait): Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S: Include
lowlevellock.h.
(LOCK): Don't define.
* sysdeps/unix/sysv/linux/i386/i486/sem_wait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/powerpc/sem_post.c: Wake only when there
are waiters.
* sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S: Revert
2007-05-2{3,9} changes.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_PRIVATE_FUTEX_WAIT): Define.
(LOAD_FUTEX_WAIT): Rewritten.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't define.
(__lll_lock_wait_private, __lll_unlock_wake_private): New functions.
(__lll_mutex_lock_wait): Rename to ...
(__lll_lock_wait): ... this. %esi is now private argument.
Don't compile in for libc.so.
(__lll_mutex_timedlock_wait): Rename to ...
(__lll_timedlock_wait): ... this. %esi contains private argument.
Don't compile in for libc.so.
(__lll_mutex_unlock_wake): Rename to ...
(__lll_unlock_wake): ... this. %esi contains private argument.
Don't compile in for libc.so.
* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_FUTEX_WAIT): Define.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't define.
(__lll_robust_mutex_lock_wait): Rename to ...
(__lll_robust_lock_wait): ... this. %esi argument contains private.
Use LOAD_FUTEX_WAIT macro.
(__lll_robust_mutex_timedlock_wait): Rename to ...
(__lll_robust_timedlock_wait): ... this. %esi argument contains
private, use LOAD_FUTEX_WAIT macro.
* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Include
lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(pthread_barrier_wait): Rename __lll_mutex_* to __lll_*, pass
PRIVATE(%rdi) ^ LLL_SHARED as private argument in %esi to
__lll_lock_wait and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE,
FUTEX_CMP_REQUEUE, EINVAL, LOCK): Don't define.
(__pthread_cond_broadcast): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, EINVAL, LOCK): Don't define.
(__pthread_cond_signal): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_timedwait): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_wait, __condvar_cleanup): Rename __lll_mutex_*
to __lll_*, pass LLL_SHARED in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_rdlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_unlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_once.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG): Don't
define.
* sysdeps/unix/sysv/linux/x86_64/sem_post.S: Include lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAKE): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: Include
lowlevellock.h.
(LOCK): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/sparc/internaltypes.h: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_destroy.c: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_init.c: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_wait.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
(__lll_lock_wait_private): New function.
(__lll_lock_wait, __lll_timedlock_wait): Add private argument, pass
it to lll_futex_*wait. Don't compile in for libc.so.
* sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_init.c:
Remove.
* sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c
(struct sparc_pthread_barrier): Remove.
(pthread_barrier_wait): Use union sparc_pthread_barrier instead of
struct sparc_pthread_barrier. Pass
ibarrier->s.pshared ? LLL_SHARED : LLL_PRIVATE to lll_{,un}lock
and lll_futex_wait macros.
* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_init.c:
Remove.
* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c:
Include sparc pthread_barrier_wait.c instead of generic one.
2007-08-01 04:47:26 +00:00
|
|
|
|| ! lll_islocked (mutex->__data.__lock))
|
2005-12-27 01:04:06 +00:00
|
|
|
return EPERM;
|
|
|
|
|
|
|
|
/* If the previous owner died and the caller did not succeed in
|
|
|
|
making the state consistent, mark the mutex as unrecoverable
|
|
|
|
and make all waiters. */
|
|
|
|
if (__builtin_expect (mutex->__data.__owner
|
2006-02-15 17:20:33 +00:00
|
|
|
== PTHREAD_MUTEX_INCONSISTENT, 0))
|
2005-12-27 01:04:06 +00:00
|
|
|
notrecoverable:
|
|
|
|
newowner = PTHREAD_MUTEX_NOTRECOVERABLE;
|
|
|
|
|
|
|
|
robust:
|
|
|
|
/* Remove mutex from the list. */
|
2006-03-28 04:25:17 +00:00
|
|
|
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending,
|
|
|
|
&mutex->__data.__list.__next);
|
2016-12-23 23:40:46 +00:00
|
|
|
/* We must set op_pending before we dequeue the mutex. Also see
|
|
|
|
comments at ENQUEUE_MUTEX. */
|
|
|
|
__asm ("" ::: "memory");
|
2005-12-27 01:04:06 +00:00
|
|
|
DEQUEUE_MUTEX (mutex);
|
2006-02-15 17:20:33 +00:00
|
|
|
|
|
|
|
mutex->__data.__owner = newowner;
|
|
|
|
if (decr)
|
|
|
|
/* One less user. */
|
|
|
|
--mutex->__data.__nusers;
|
|
|
|
|
robust mutexes: Fix broken x86 assembly by removing it
lll_robust_unlock on i386 and x86_64 first sets the futex word to
FUTEX_WAITERS|0 before calling __lll_unlock_wake, which will set the
futex word to 0. If the thread is killed between these steps, then the
futex word will be FUTEX_WAITERS|0, and the kernel (at least current
upstream) will not set it to FUTEX_OWNER_DIED|FUTEX_WAITERS because 0 is
not equal to the TID of the crashed thread.
The lll_robust_lock assembly code on i386 and x86_64 is not prepared to
deal with this case because the fastpath tries to only CAS 0 to TID and
not FUTEX_WAITERS|0 to TID; the slowpath simply waits until it can CAS 0
to TID or the futex_word has the FUTEX_OWNER_DIED bit set.
This issue is fixed by removing the custom x86 assembly code and using
the generic C code instead. However, instead of adding more duplicate
code to the custom x86 lowlevellock.h, the code of the lll_robust* functions
is inlined into the single call sites that exist for each of these functions
in the pthread_mutex_* functions. The robust mutex paths in the latter
have been slightly reorganized to make them simpler.
This patch is meant to be easy to backport, so C11-style atomics are not
used.
[BZ #20985]
* nptl/Makefile: Adapt.
* nptl/pthread_mutex_cond_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove.
(LLL_ROBUST_MUTEX_LOCK_MODIFIER): New.
* nptl/pthread_mutex_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove.
(LLL_ROBUST_MUTEX_LOCK_MODIFIER): New.
(__pthread_mutex_lock_full): Inline lll_robust* functions and adapt.
* nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Inline
lll_robust* functions and adapt.
* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock_full): Likewise.
* sysdeps/nptl/lowlevellock.h (__lll_robust_lock_wait,
__lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait,
__lll_robust_timedlock, __lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h (lll_robust_lock,
lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (lll_robust_lock,
lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (__lll_robust_lock_wait,
__lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait,
__lll_robust_timedlock, __lll_robust_unlock): Remove.
* nptl/lowlevelrobustlock.c: Remove file.
* nptl/lowlevelrobustlock.sym: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevelrobustlock.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Likewise.
2016-12-22 09:20:43 +00:00
|
|
|
/* Unlock by setting the lock to 0 (not acquired); if the lock had
|
|
|
|
FUTEX_WAITERS set previously, then wake any waiters.
|
|
|
|
The unlock operation must be the last access to the mutex to not
|
|
|
|
violate the mutex destruction requirements (see __lll_unlock). */
|
|
|
|
private = PTHREAD_ROBUST_MUTEX_PSHARED (mutex);
|
|
|
|
if (__glibc_unlikely ((atomic_exchange_rel (&mutex->__data.__lock, 0)
|
|
|
|
& FUTEX_WAITERS) != 0))
|
|
|
|
lll_futex_wake (&mutex->__data.__lock, 1, private);
|
2006-03-28 04:25:17 +00:00
|
|
|
|
2016-12-23 23:40:46 +00:00
|
|
|
/* We must clear op_pending after we release the mutex.
|
|
|
|
FIXME However, this violates the mutex destruction requirements
|
|
|
|
because another thread could acquire the mutex, destroy it, and
|
|
|
|
reuse the memory for something else; then, if this thread crashes,
|
|
|
|
and the memory happens to have a value equal to the TID, the kernel
|
|
|
|
will believe it is still related to the mutex (which has been
|
|
|
|
destroyed already) and will modify some other random object. */
|
|
|
|
__asm ("" ::: "memory");
|
2006-03-28 04:25:17 +00:00
|
|
|
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
|
2005-12-27 01:04:06 +00:00
|
|
|
break;
|
|
|
|
|
2014-10-17 21:30:16 +00:00
|
|
|
/* The PI support requires the Linux futex system call. If that's not
|
|
|
|
available, pthread_mutex_init should never have allowed the type to
|
|
|
|
be set. So it will get the default case for an invalid type. */
|
|
|
|
#ifdef __NR_futex
|
2006-07-29 04:42:09 +00:00
|
|
|
case PTHREAD_MUTEX_PI_RECURSIVE_NP:
|
|
|
|
/* Recursive mutex. */
|
|
|
|
if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid))
|
|
|
|
return EPERM;
|
|
|
|
|
|
|
|
if (--mutex->__data.__count != 0)
|
|
|
|
/* We still hold the mutex. */
|
|
|
|
return 0;
|
2009-07-28 16:40:39 +00:00
|
|
|
goto continue_pi_non_robust;
|
2006-07-29 04:42:09 +00:00
|
|
|
|
|
|
|
case PTHREAD_MUTEX_PI_ROBUST_RECURSIVE_NP:
|
|
|
|
/* Recursive mutex. */
|
|
|
|
if ((mutex->__data.__lock & FUTEX_TID_MASK)
|
|
|
|
== THREAD_GETMEM (THREAD_SELF, tid)
|
|
|
|
&& __builtin_expect (mutex->__data.__owner
|
|
|
|
== PTHREAD_MUTEX_INCONSISTENT, 0))
|
|
|
|
{
|
|
|
|
if (--mutex->__data.__count != 0)
|
|
|
|
/* We still hold the mutex. */
|
|
|
|
return ENOTRECOVERABLE;
|
|
|
|
|
|
|
|
goto pi_notrecoverable;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid))
|
|
|
|
return EPERM;
|
|
|
|
|
|
|
|
if (--mutex->__data.__count != 0)
|
|
|
|
/* We still hold the mutex. */
|
|
|
|
return 0;
|
|
|
|
|
2009-07-28 16:40:39 +00:00
|
|
|
goto continue_pi_robust;
|
2006-07-29 04:42:09 +00:00
|
|
|
|
|
|
|
case PTHREAD_MUTEX_PI_ERRORCHECK_NP:
|
|
|
|
case PTHREAD_MUTEX_PI_NORMAL_NP:
|
|
|
|
case PTHREAD_MUTEX_PI_ADAPTIVE_NP:
|
|
|
|
case PTHREAD_MUTEX_PI_ROBUST_ERRORCHECK_NP:
|
|
|
|
case PTHREAD_MUTEX_PI_ROBUST_NORMAL_NP:
|
|
|
|
case PTHREAD_MUTEX_PI_ROBUST_ADAPTIVE_NP:
|
|
|
|
if ((mutex->__data.__lock & FUTEX_TID_MASK)
|
|
|
|
!= THREAD_GETMEM (THREAD_SELF, tid)
|
* sysdeps/unix/sysv/linux/powerpc/sem_post.c (__new_sem_post):
Use __asm __volatile (__lll_acq_instr ::: "memory") instead of
atomic_full_barrier.
2007-07-31 Jakub Jelinek <jakub@redhat.com>
* allocatestack.c (stack_cache_lock): Change type to int.
(get_cached_stack, allocate_stack, __deallocate_stack,
__make_stacks_executable, __find_thread_by_id, __nptl_setxid,
__pthread_init_static_tls, __wait_lookup_done): Add LLL_PRIVATE
as second argument to lll_lock and lll_unlock macros on
stack_cache_lock.
* pthread_create.c (__find_in_stack_list): Likewise.
(start_thread): Similarly with pd->lock. Use lll_robust_dead
macro instead of lll_robust_mutex_dead, pass LLL_SHARED to it
as second argument.
* descr.h (struct pthread): Change lock and setxid_futex field
type to int.
* old_pthread_cond_broadcast.c (__pthread_cond_broadcast_2_0): Use
LLL_LOCK_INITIALIZER instead of LLL_MUTEX_LOCK_INITIALIZER.
* old_pthread_cond_signal.c (__pthread_cond_signal_2_0): Likewise.
* old_pthread_cond_timedwait.c (__pthread_cond_timedwait_2_0):
Likewise.
* old_pthread_cond_wait.c (__pthread_cond_wait_2_0): Likewise.
* pthread_cond_init.c (__pthread_cond_init): Likewise.
* pthreadP.h (__attr_list_lock): Change type to int.
* pthread_attr_init.c (__attr_list_lock): Likewise.
* pthread_barrier_destroy.c (pthread_barrier_destroy): Pass
ibarrier->private ^ FUTEX_PRIVATE_FLAG as second argument to
lll_{,un}lock.
* pthread_barrier_wait.c (pthread_barrier_wait): Likewise and
also for lll_futex_{wake,wait}.
* pthread_barrier_init.c (pthread_barrier_init): Make iattr
a pointer to const.
* pthread_cond_broadcast.c (__pthread_cond_broadcast): Pass
LLL_SHARED as second argument to lll_{,un}lock.
* pthread_cond_destroy.c (__pthread_cond_destroy): Likewise.
* pthread_cond_signal.c (__pthread_cond_singal): Likewise.
* pthread_cond_timedwait.c (__pthread_cond_timedwait): Likewise.
* pthread_cond_wait.c (__condvar_cleanup, __pthread_cond_wait):
Likewise.
* pthread_getattr_np.c (pthread_getattr_np): Add LLL_PRIVATE
as second argument to lll_{,un}lock macros on pd->lock.
* pthread_getschedparam.c (__pthread_getschedparam): Likewise.
* pthread_setschedparam.c (__pthread_setschedparam): Likewise.
* pthread_setschedprio.c (pthread_setschedprio): Likewise.
* tpp.c (__pthread_tpp_change_priority, __pthread_current_priority):
Likewise.
* sysdeps/pthread/createthread.c (do_clone, create_thread):
Likewise.
* pthread_once.c (once_lock): Change type to int.
(__pthread_once): Pass LLL_PRIVATE as second argument to
lll_{,un}lock macros on once_lock.
* pthread_rwlock_rdlock.c (__pthread_rwlock_rdlock): Use
lll_{,un}lock macros instead of lll_mutex_{,un}lock, pass
rwlock->__data.__shared as second argument to them and similarly
for lll_futex_w*.
* pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock):
Likewise.
* pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock):
Likewise.
* pthread_rwlock_tryrdlock.c (__pthread_rwlock_tryrdlock): Likewise.
* pthread_rwlock_trywrlock.c (__pthread_rwlock_trywrlock): Likewise.
* pthread_rwlock_unlock.c (__pthread_rwlock_unlock): Likewise.
* pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Likewise.
* sem_close.c (sem_close): Pass LLL_PRIVATE as second argument
to lll_{,un}lock macros on __sem_mappings_lock.
* sem_open.c (check_add_mapping): Likewise.
(__sem_mappings_lock): Change type to int.
* semaphoreP.h (__sem_mappings_lock): Likewise.
* pthread_mutex_lock.c (LLL_MUTEX_LOCK, LLL_MUTEX_TRYLOCK,
LLL_ROBUST_MUTEX_LOCK): Use lll_{,try,robust_}lock macros
instead of lll_*mutex_*, pass LLL_SHARED as last
argument.
(__pthread_mutex_lock): Use lll_unlock instead of lll_mutex_unlock,
pass LLL_SHARED as last argument.
* sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c (LLL_MUTEX_LOCK,
LLL_MUTEX_TRYLOCK, LLL_ROBUST_MUTEX_LOCK): Use
lll_{cond_,cond_try,robust_cond}lock macros instead of lll_*mutex_*,
pass LLL_SHARED as last argument.
* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Use
lll_{timed,try,robust_timed,un}lock instead of lll_*mutex*, pass
LLL_SHARED as last argument.
* pthread_mutex_trylock.c (__pthread_mutex_trylock): Similarly.
* pthread_mutex_unlock.c (__pthread_mutex_unlock_usercnt):
Similarly.
* sysdeps/pthread/bits/libc-lock.h (__libc_lock_lock,
__libc_lock_lock_recursive, __libc_lock_unlock,
__libc_lock_unlock_recursive): Pass LLL_PRIVATE as second
argument to lll_{,un}lock.
* sysdeps/pthread/bits/stdio-lock.h (_IO_lock_lock,
_IO_lock_unlock): Likewise.
* sysdeps/unix/sysv/linux/fork.c (__libc_fork): Don't use
compound literal.
* sysdeps/unix/sysv/linux/unregister-atfork.c (__unregister_atfork):
Pass LLL_PRIVATE as second argument to lll_{,un}lock macros on
__fork_lock.
* sysdeps/unix/sysv/linux/register-atfork.c (__register_atfork,
free_mem): Likewise.
(__fork_lock): Change type to int.
* sysdeps/unix/sysv/linux/fork.h (__fork_lock): Likewise.
* sysdeps/unix/sysv/linux/sem_post.c (__new_sem_post): Pass
isem->private ^ FUTEX_PRIVATE_FLAG as second argument to
lll_futex_wake.
* sysdeps/unix/sysv/linux/sem_timedwait.c (sem_timedwait): Likewise.
* sysdeps/unix/sysv/linux/sem_wait.c (__new_sem_wait): Likewise.
* sysdeps/unix/sysv/linux/lowlevellock.c (__lll_lock_wait_private):
New function.
(__lll_lock_wait, __lll_timedlock_wait): Add private argument and
pass it through to lll_futex_*wait, only compile in when
IS_IN_libpthread.
* sysdeps/unix/sysv/linux/lowlevelrobustlock.c
(__lll_robust_lock_wait, __lll_robust_timedlock_wait): Add private
argument and pass it through to lll_futex_*wait.
* sysdeps/unix/sysv/linux/alpha/lowlevellock.h: Renamed all
lll_mutex_* resp. lll_robust_mutex_* macros to lll_* resp.
lll_robust_*. Renamed all __lll_mutex_* resp. __lll_robust_mutex_*
inline functions to __lll_* resp. __lll_robust_*.
(LLL_MUTEX_LOCK_INITIALIZER): Remove.
(lll_mutex_dead): Add private argument.
(__lll_lock_wait_private): New prototype.
(__lll_lock_wait, __lll_robust_lock_wait, __lll_lock_timedwait,
__lll_robust_lock_timedwait): Add private argument to prototypes.
(__lll_lock): Add private argument, if it is constant LLL_PRIVATE,
call __lll_lock_wait_private, otherwise pass private to
__lll_lock_wait.
(__lll_robust_lock, __lll_cond_lock, __lll_timedlock,
__lll_robust_timedlock): Add private argument, pass it to
__lll_*wait functions.
(__lll_unlock): Add private argument, if it is constant LLL_PRIVATE,
call __lll_unlock_wake_private, otherwise pass private to
__lll_unlock_wake.
(__lll_robust_unlock): Add private argument, pass it to
__lll_robust_unlock_wake.
(lll_lock, lll_robust_lock, lll_cond_lock, lll_timedlock,
lll_robust_timedlock, lll_unlock, lll_robust_unlock): Add private
argument, pass it through to __lll_* inline function.
(__lll_mutex_unlock_force, lll_mutex_unlock_force): Remove.
(lll_lock_t): Remove.
(__lll_cond_wait, __lll_cond_timedwait, __lll_cond_wake,
__lll_cond_broadcast, lll_cond_wait, lll_cond_timedwait,
lll_cond_wake, lll_cond_broadcast): Remove.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Allow including
the header from assembler. Renamed all lll_mutex_* resp.
lll_robust_mutex_* macros to lll_* resp. lll_robust_*.
(LOCK, FUTEX_CMP_REQUEUE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE): Define.
(LLL_MUTEX_LOCK_INITIALIZER, LLL_MUTEX_LOCK_INITIALIZER_LOCKED,
LLL_MUTEX_LOCK_INITIALIZER_WAITERS): Remove.
(__lll_mutex_lock_wait, __lll_mutex_timedlock_wait,
__lll_mutex_unlock_wake, __lll_lock_wait, __lll_unlock_wake):
Remove prototype.
(__lll_trylock_asm, __lll_lock_asm_start, __lll_unlock_asm): Define.
(lll_robust_trylock, lll_cond_trylock): Use LLL_LOCK_INITIALIZER*
rather than LLL_MUTEX_LOCK_INITIALIZER* macros.
(lll_trylock): Likewise, use __lll_trylock_asm, pass
MULTIPLE_THREADS_OFFSET as another asm operand.
(lll_lock): Add private argument, use __lll_lock_asm_start, pass
MULTIPLE_THREADS_OFFSET as last asm operand, call
__lll_lock_wait_private if private is constant LLL_PRIVATE,
otherwise pass private as another argument to __lll_lock_wait.
(lll_robust_lock, lll_cond_lock, lll_robust_cond_lock,
lll_timedlock, lll_robust_timedlock): Add private argument, pass
private as another argument to __lll_*lock_wait call.
(lll_unlock): Add private argument, use __lll_unlock_asm, pass
MULTIPLE_THREADS_OFFSET as another asm operand, call
__lll_unlock_wake_private if private is constant LLL_PRIVATE,
otherwise pass private as another argument to __lll_unlock_wake.
(lll_robust_unlock): Add private argument, pass private as another
argument to __lll_unlock_wake.
(lll_robust_dead): Add private argument, use __lll_private_flag
macro.
(lll_islocked): Use LLL_LOCK_INITIALIZER instead of
LLL_MUTEX_LOCK_INITIALIZER.
(lll_lock_t): Remove.
(LLL_LOCK_INITIALIZER_WAITERS): Define.
(__lll_cond_wait, __lll_cond_timedwait, __lll_cond_wake,
__lll_cond_broadcast, lll_cond_wait, lll_cond_timedwait,
lll_cond_wake, lll_cond_broadcast): Remove.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/libc-lowlevellock.S: Revert
2007-05-2{3,9} changes.
* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_PRIVATE_FUTEX_WAIT): Define.
(LOAD_FUTEX_WAIT): Rewritten.
(LOCK, SYS_gettimeofday, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't
define.
(__lll_lock_wait_private, __lll_unlock_wake_private): New functions.
(__lll_mutex_lock_wait): Rename to ...
(__lll_lock_wait): ... this. Take futex addr from %edx instead of
%ecx, %ecx is now private argument. Don't compile in for libc.so.
(__lll_mutex_timedlock_wait): Rename to ...
(__lll_timedlock_wait): ... this. Use __NR_gettimeofday. %esi
contains private argument. Don't compile in for libc.so.
(__lll_mutex_unlock_wake): Rename to ...
(__lll_unlock_wake): ... this. %ecx contains private argument.
Don't compile in for libc.so.
(__lll_timedwait_tid): Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelrobustlock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_FUTEX_WAIT): Define.
(LOCK, SYS_gettimeofday, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't
define.
(__lll_robust_mutex_lock_wait): Rename to ...
(__lll_robust_lock_wait): ... this. Futex addr is now in %edx
argument, %ecx argument contains private. Use LOAD_FUTEX_WAIT
macro.
(__lll_robust_mutex_timedlock_wait): Rename to ...
(__lll_robust_timedlock_wait): ... this. Use __NR_gettimeofday.
%esi argument contains private, use LOAD_FUTEX_WAIT macro.
* sysdeps/unix/sysv/linux/i386/i486/pthread_barrier_wait.S: Include
lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(pthread_barrier_wait): Rename __lll_mutex_* to __lll_*, pass
PRIVATE(%ebx) ^ LLL_SHARED as private argument in %ecx to
__lll_lock_wait and __lll_unlock_wake, pass MUTEX(%ebx) address
to __lll_lock_wait in %edx.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_broadcast.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE,
FUTEX_CMP_REQUEUE, EINVAL, LOCK): Don't define.
(__pthread_cond_broadcast): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_signal.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, EINVAL, LOCK): Don't define.
(__pthread_cond_signal): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_timedwait.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_cond_timedwait): Rename __lll_mutex_* to __lll_*, pass
cond_lock address in %edx rather than %ecx to __lll_lock_wait,
pass LLL_SHARED in %ecx to both __lll_lock_wait and
__lll_unlock_wake. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_cond_wait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_wait, __condvar_w_cleanup): Rename __lll_mutex_*
to __lll_*, pass cond_lock address in %edx rather than %ecx to
__lll_lock_wait, pass LLL_SHARED in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_rdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_rdlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebx) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebx) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedrdlock.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebp) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebp) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_timedwrlock.S:
Include lowlevellock.h.
(SYS_futex, SYS_gettimeofday, FUTEX_WAIT, FUTEX_WAKE, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebp) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebp) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register. Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_unlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_unlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%edi) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%edi) in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/i386/i486/pthread_rwlock_wrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*, pass
MUTEX(%ebx) address in %edx rather than %ecx to
__lll_lock_wait, pass PSHARED(%ebx) in %ecx to both __lll_lock_wait
and __lll_unlock_wake. Move return value from %ecx to %edx
register.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG): Don't
define.
* sysdeps/unix/sysv/linux/i386/i486/sem_post.S: Include lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAKE): Don't define.
* sysdeps/unix/sysv/linux/i386/i486/sem_timedwait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, SYS_gettimeofday, FUTEX_WAIT): Don't define.
(sem_timedwait): Use __NR_gettimeofday.
* sysdeps/unix/sysv/linux/i386/i486/sem_trywait.S: Include
lowlevellock.h.
(LOCK): Don't define.
* sysdeps/unix/sysv/linux/i386/i486/sem_wait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/powerpc/sem_post.c: Wake only when there
are waiters.
* sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S: Revert
2007-05-2{3,9} changes.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_PRIVATE_FUTEX_WAIT): Define.
(LOAD_FUTEX_WAIT): Rewritten.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't define.
(__lll_lock_wait_private, __lll_unlock_wake_private): New functions.
(__lll_mutex_lock_wait): Rename to ...
(__lll_lock_wait): ... this. %esi is now private argument.
Don't compile in for libc.so.
(__lll_mutex_timedlock_wait): Rename to ...
(__lll_timedlock_wait): ... this. %esi contains private argument.
Don't compile in for libc.so.
(__lll_mutex_unlock_wake): Rename to ...
(__lll_unlock_wake): ... this. %esi contains private argument.
Don't compile in for libc.so.
* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Include
kernel-features.h and lowlevellock.h.
(LOAD_FUTEX_WAIT): Define.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE): Don't define.
(__lll_robust_mutex_lock_wait): Rename to ...
(__lll_robust_lock_wait): ... this. %esi argument contains private.
Use LOAD_FUTEX_WAIT macro.
(__lll_robust_mutex_timedlock_wait): Rename to ...
(__lll_robust_timedlock_wait): ... this. %esi argument contains
private, use LOAD_FUTEX_WAIT macro.
* sysdeps/unix/sysv/linux/x86_64/pthread_barrier_wait.S: Include
lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(pthread_barrier_wait): Rename __lll_mutex_* to __lll_*, pass
PRIVATE(%rdi) ^ LLL_SHARED as private argument in %esi to
__lll_lock_wait and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_REQUEUE,
FUTEX_CMP_REQUEUE, EINVAL, LOCK): Don't define.
(__pthread_cond_broadcast): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S:
Include lowlevellock.h and pthread-errnos.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_WAKE_OP,
FUTEX_OP_CLEAR_WAKE_IF_GT_ONE, EINVAL, LOCK): Don't define.
(__pthread_cond_signal): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_timedwait): Rename __lll_mutex_* to __lll_*,
pass LLL_SHARED in %esi to both __lll_lock_wait and
__lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, LOCK): Don't define.
(__pthread_cond_wait, __condvar_cleanup): Rename __lll_mutex_*
to __lll_*, pass LLL_SHARED in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_rdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_rdlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedrdlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_timedwrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_unlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_unlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %esi to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_rwlock_wrlock.S:
Include lowlevellock.h.
(SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG, LOCK):
Don't define.
(__pthread_rwlock_wrlock): Rename __lll_mutex_* to __lll_*,
pass PSHARED(%rdi) in %ecx to both __lll_lock_wait
and __lll_unlock_wake.
* sysdeps/unix/sysv/linux/x86_64/pthread_once.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT, FUTEX_WAKE, FUTEX_PRIVATE_FLAG): Don't
define.
* sysdeps/unix/sysv/linux/x86_64/sem_post.S: Include lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAKE): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_timedwait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_trywait.S: Include
lowlevellock.h.
(LOCK): Don't define.
* sysdeps/unix/sysv/linux/x86_64/sem_wait.S: Include
lowlevellock.h.
(LOCK, SYS_futex, FUTEX_WAIT): Don't define.
* sysdeps/unix/sysv/linux/sparc/internaltypes.h: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_destroy.c: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_init.c: New file.
* sysdeps/unix/sysv/linux/sparc/pthread_barrier_wait.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
(__lll_lock_wait_private): New function.
(__lll_lock_wait, __lll_timedlock_wait): Add private argument, pass
it to lll_futex_*wait. Don't compile in for libc.so.
* sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_init.c:
Remove.
* sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_wait.c
(struct sparc_pthread_barrier): Remove.
(pthread_barrier_wait): Use union sparc_pthread_barrier instead of
struct sparc_pthread_barrier. Pass
ibarrier->s.pshared ? LLL_SHARED : LLL_PRIVATE to lll_{,un}lock
and lll_futex_wait macros.
* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_init.c:
Remove.
* sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/pthread_barrier_wait.c:
Include sparc pthread_barrier_wait.c instead of generic one.
2007-08-01 04:47:26 +00:00
|
|
|
|| ! lll_islocked (mutex->__data.__lock))
|
2006-07-29 04:42:09 +00:00
|
|
|
return EPERM;
|
|
|
|
|
|
|
|
/* If the previous owner died and the caller did not succeed in
|
|
|
|
making the state consistent, mark the mutex as unrecoverable
|
|
|
|
and make all waiters. */
|
2018-10-17 10:23:04 +00:00
|
|
|
/* See concurrency notes regarding __kind in struct __pthread_mutex_s
|
|
|
|
in sysdeps/nptl/bits/thread-shared-types.h. */
|
|
|
|
if ((atomic_load_relaxed (&(mutex->__data.__kind))
|
|
|
|
& PTHREAD_MUTEX_ROBUST_NORMAL_NP) != 0
|
2006-07-29 04:42:09 +00:00
|
|
|
&& __builtin_expect (mutex->__data.__owner
|
|
|
|
== PTHREAD_MUTEX_INCONSISTENT, 0))
|
|
|
|
pi_notrecoverable:
|
|
|
|
newowner = PTHREAD_MUTEX_NOTRECOVERABLE;
|
|
|
|
|
2018-10-17 10:23:04 +00:00
|
|
|
/* See concurrency notes regarding __kind in struct __pthread_mutex_s
|
|
|
|
in sysdeps/nptl/bits/thread-shared-types.h. */
|
|
|
|
if ((atomic_load_relaxed (&(mutex->__data.__kind))
|
|
|
|
& PTHREAD_MUTEX_ROBUST_NORMAL_NP) != 0)
|
2006-07-29 04:42:09 +00:00
|
|
|
{
|
2009-07-28 16:40:39 +00:00
|
|
|
continue_pi_robust:
|
2006-07-29 04:42:09 +00:00
|
|
|
/* Remove mutex from the list.
|
|
|
|
Note: robust PI futexes are signaled by setting bit 0. */
|
|
|
|
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending,
|
|
|
|
(void *) (((uintptr_t) &mutex->__data.__list.__next)
|
|
|
|
| 1));
|
2016-12-23 23:40:46 +00:00
|
|
|
/* We must set op_pending before we dequeue the mutex. Also see
|
|
|
|
comments at ENQUEUE_MUTEX. */
|
|
|
|
__asm ("" ::: "memory");
|
2006-07-29 04:42:09 +00:00
|
|
|
DEQUEUE_MUTEX (mutex);
|
|
|
|
}
|
|
|
|
|
2009-07-28 16:40:39 +00:00
|
|
|
continue_pi_non_robust:
|
2006-07-29 04:42:09 +00:00
|
|
|
mutex->__data.__owner = newowner;
|
|
|
|
if (decr)
|
|
|
|
/* One less user. */
|
|
|
|
--mutex->__data.__nusers;
|
|
|
|
|
2015-07-14 19:58:34 +00:00
|
|
|
/* Unlock. Load all necessary mutex data before releasing the mutex
|
|
|
|
to not violate the mutex destruction requirements (see
|
|
|
|
lll_unlock). */
|
2018-10-17 10:23:04 +00:00
|
|
|
/* See concurrency notes regarding __kind in struct __pthread_mutex_s
|
|
|
|
in sysdeps/nptl/bits/thread-shared-types.h. */
|
|
|
|
int robust = atomic_load_relaxed (&(mutex->__data.__kind))
|
|
|
|
& PTHREAD_MUTEX_ROBUST_NORMAL_NP;
|
robust mutexes: Fix broken x86 assembly by removing it
lll_robust_unlock on i386 and x86_64 first sets the futex word to
FUTEX_WAITERS|0 before calling __lll_unlock_wake, which will set the
futex word to 0. If the thread is killed between these steps, then the
futex word will be FUTEX_WAITERS|0, and the kernel (at least current
upstream) will not set it to FUTEX_OWNER_DIED|FUTEX_WAITERS because 0 is
not equal to the TID of the crashed thread.
The lll_robust_lock assembly code on i386 and x86_64 is not prepared to
deal with this case because the fastpath tries to only CAS 0 to TID and
not FUTEX_WAITERS|0 to TID; the slowpath simply waits until it can CAS 0
to TID or the futex_word has the FUTEX_OWNER_DIED bit set.
This issue is fixed by removing the custom x86 assembly code and using
the generic C code instead. However, instead of adding more duplicate
code to the custom x86 lowlevellock.h, the code of the lll_robust* functions
is inlined into the single call sites that exist for each of these functions
in the pthread_mutex_* functions. The robust mutex paths in the latter
have been slightly reorganized to make them simpler.
This patch is meant to be easy to backport, so C11-style atomics are not
used.
[BZ #20985]
* nptl/Makefile: Adapt.
* nptl/pthread_mutex_cond_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove.
(LLL_ROBUST_MUTEX_LOCK_MODIFIER): New.
* nptl/pthread_mutex_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove.
(LLL_ROBUST_MUTEX_LOCK_MODIFIER): New.
(__pthread_mutex_lock_full): Inline lll_robust* functions and adapt.
* nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Inline
lll_robust* functions and adapt.
* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock_full): Likewise.
* sysdeps/nptl/lowlevellock.h (__lll_robust_lock_wait,
__lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait,
__lll_robust_timedlock, __lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h (lll_robust_lock,
lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (lll_robust_lock,
lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (__lll_robust_lock_wait,
__lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait,
__lll_robust_timedlock, __lll_robust_unlock): Remove.
* nptl/lowlevelrobustlock.c: Remove file.
* nptl/lowlevelrobustlock.sym: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevelrobustlock.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Likewise.
2016-12-22 09:20:43 +00:00
|
|
|
private = (robust
|
|
|
|
? PTHREAD_ROBUST_MUTEX_PSHARED (mutex)
|
|
|
|
: PTHREAD_MUTEX_PSHARED (mutex));
|
2016-06-14 13:12:00 +00:00
|
|
|
/* Unlock the mutex using a CAS unless there are futex waiters or our
|
|
|
|
TID is not the value of __lock anymore, in which case we let the
|
|
|
|
kernel take care of the situation. Use release MO in the CAS to
|
|
|
|
synchronize with acquire MO in lock acquisitions. */
|
|
|
|
int l = atomic_load_relaxed (&mutex->__data.__lock);
|
|
|
|
do
|
2006-07-29 04:42:09 +00:00
|
|
|
{
|
2016-06-14 13:12:00 +00:00
|
|
|
if (((l & FUTEX_WAITERS) != 0)
|
|
|
|
|| (l != THREAD_GETMEM (THREAD_SELF, tid)))
|
|
|
|
{
|
|
|
|
INTERNAL_SYSCALL_DECL (__err);
|
|
|
|
INTERNAL_SYSCALL (futex, __err, 2, &mutex->__data.__lock,
|
|
|
|
__lll_private_flag (FUTEX_UNLOCK_PI, private));
|
|
|
|
break;
|
|
|
|
}
|
2006-07-29 04:42:09 +00:00
|
|
|
}
|
2016-06-14 13:12:00 +00:00
|
|
|
while (!atomic_compare_exchange_weak_release (&mutex->__data.__lock,
|
|
|
|
&l, 0));
|
2006-07-29 04:42:09 +00:00
|
|
|
|
2016-12-23 23:40:46 +00:00
|
|
|
/* This happens after the kernel releases the mutex but violates the
|
|
|
|
mutex destruction requirements; see comments in the code handling
|
|
|
|
PTHREAD_MUTEX_ROBUST_NORMAL_NP. */
|
2006-07-29 04:42:09 +00:00
|
|
|
THREAD_SETMEM (THREAD_SELF, robust_head.list_op_pending, NULL);
|
|
|
|
break;
|
2014-10-17 21:30:16 +00:00
|
|
|
#endif /* __NR_futex. */
|
2006-07-29 04:42:09 +00:00
|
|
|
|
2006-08-14 23:11:18 +00:00
|
|
|
case PTHREAD_MUTEX_PP_RECURSIVE_NP:
|
|
|
|
/* Recursive mutex. */
|
|
|
|
if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid))
|
|
|
|
return EPERM;
|
|
|
|
|
|
|
|
if (--mutex->__data.__count != 0)
|
|
|
|
/* We still hold the mutex. */
|
|
|
|
return 0;
|
|
|
|
goto pp;
|
|
|
|
|
|
|
|
case PTHREAD_MUTEX_PP_ERRORCHECK_NP:
|
|
|
|
/* Error checking mutex. */
|
|
|
|
if (mutex->__data.__owner != THREAD_GETMEM (THREAD_SELF, tid)
|
|
|
|
|| (mutex->__data.__lock & ~ PTHREAD_MUTEX_PRIO_CEILING_MASK) == 0)
|
|
|
|
return EPERM;
|
|
|
|
/* FALLTHROUGH */
|
|
|
|
|
|
|
|
case PTHREAD_MUTEX_PP_NORMAL_NP:
|
|
|
|
case PTHREAD_MUTEX_PP_ADAPTIVE_NP:
|
|
|
|
/* Always reset the owner field. */
|
|
|
|
pp:
|
|
|
|
mutex->__data.__owner = 0;
|
|
|
|
|
|
|
|
if (decr)
|
|
|
|
/* One less user. */
|
|
|
|
--mutex->__data.__nusers;
|
|
|
|
|
2016-06-14 13:12:00 +00:00
|
|
|
/* Unlock. Use release MO in the CAS to synchronize with acquire MO in
|
|
|
|
lock acquisitions. */
|
|
|
|
int newval;
|
|
|
|
int oldval = atomic_load_relaxed (&mutex->__data.__lock);
|
2006-08-14 23:11:18 +00:00
|
|
|
do
|
|
|
|
{
|
|
|
|
newval = oldval & PTHREAD_MUTEX_PRIO_CEILING_MASK;
|
|
|
|
}
|
2016-06-14 13:12:00 +00:00
|
|
|
while (!atomic_compare_exchange_weak_release (&mutex->__data.__lock,
|
|
|
|
&oldval, newval));
|
2006-08-14 23:11:18 +00:00
|
|
|
|
|
|
|
if ((oldval & ~PTHREAD_MUTEX_PRIO_CEILING_MASK) > 1)
|
2007-06-08 02:50:59 +00:00
|
|
|
lll_futex_wake (&mutex->__data.__lock, 1,
|
* pthreadP.h (PTHREAD_ROBUST_MUTEX_PSHARED): Define.
* pthread_mutex_lock.c: Use it instead of PTHREAD_MUTEX_PSHARED when
dealing with robust mutexes.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pthread_mutex_unlock.c: Likewise.
* sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c: Likewise.
2007-08-06 Jakub Jelinek <jakub@redhat.com>
* pthreadP.h (PTHREAD_MUTEX_PSHARED_BIT): Define.
(PTHREAD_MUTEX_TYPE): Mask __kind with 127.
(PTHREAD_MUTEX_PSHARED): Define.
* pthread_mutex_init.c (__pthread_mutex_init): Set
PTHREAD_MUTEX_PSHARED_BIT for pshared or robust
mutexes.
* pthread_mutex_lock.c (LLL_MUTEX_LOCK): Take mutex as argument
instead of its __data.__lock field, pass PTHREAD_MUTEX_PSHARED
as second argument to lll_lock.
(LLL_MUTEX_TRYLOCK): Take mutex as argument
instead of its __data.__lock field.
(LLL_ROBUST_MUTEX_LOCK): Take mutex as argument instead of its
__data.__lock field, pass PTHREAD_MUTEX_PSHARED as second argument
to lll_robust_lock.
(__pthread_mutex_lock): Update LLL_MUTEX_LOCK, LLL_MUTEX_TRYLOCK,
LLL_ROBUST_MUTEX_LOCK users, use PTHREAD_MUTEX_TYPE (mutex)
instead of mutex->__data.__kind directly, pass
PTHREAD_MUTEX_PSHARED (mutex) to lll_unlock and lll_futex_wait.
* pthread_mutex_trylock.c (__pthread_mutex_trylock): Use
PTHREAD_MUTEX_TYPE (mutex) instead of mutex->__data.__kind
directly, pass PTHREAD_MUTEX_PSHARED (mutex) to lll_unlock.
(pthread_mutex_timedlock): Pass PTHREAD_MUTEX_PSHARED (mutex)
to lll_timedlock, lll_robust_timedlock, lll_unlock and
lll_futex_timed_wait. Use PTHREAD_MUTEX_TYPE (mutex) instead
of mutex->__data.__kind directly.
* pthread_mutex_timedlock.c (pthread_mutex_timedlock): Pass
PTHREAD_MUTEX_PSHARED (mutex) to lll_timedlock,
lll_robust_timedlock, lll_unlock and lll_futex_timed_wait. Use
PTHREAD_MUTEX_TYPE (mutex) instead of mutex->__data.__kind directly.
* pthread_mutex_unlock.c (__pthread_mutex_unlock_usercnt): Pass
PTHREAD_MUTEX_PSHARED (mutex) to lll_unlock, lll_robust_unlock
and lll_futex_wake.
* pthread_mutex_setprioceiling.c (pthread_mutex_setprioceiling): Pass
PTHREAD_MUTEX_PSHARED (mutex) to lll_futex_wait and lll_futex_wake.
Use PTHREAD_MUTEX_TYPE (mutex) instead of mutex->__data.__kind
directly.
* sysdeps/unix/sysv/linux/pthread_mutex_cond_lock.c (LLL_MUTEX_LOCK):
Take mutex as argument instead of its __data.__lock field, pass
PTHREAD_MUTEX_PSHARED as second argument to lll_cond_lock.
(LLL_MUTEX_TRYLOCK): Take mutex as argument instead of its
__data.__lock field.
(LLL_ROBUST_MUTEX_LOCK): Take mutex as argument instead of its
__data.__lock field, pass PTHREAD_MUTEX_PSHARED as second argument
to lll_robust_cond_lock.
* pthread_cond_broadcast.c (__pthread_cond_broadcast): Add pshared
variable, pass it to lll_lock, lll_unlock, lll_futex_requeue and
lll_futex_wake. Don't use lll_futex_requeue if dependent mutex
has PTHREAD_MUTEX_PSHARED_BIT bit set in its __data.__kind.
* pthread_cond_destroy.c (__pthread_cond_destroy): Add pshared
variable, pass it to lll_lock, lll_unlock, lll_futex_wake and
lll_futex_wait.
* pthread_cond_signal.c (__pthread_cond_signal): Add pshared
variable, pass it to lll_lock, lll_unlock, lll_futex_wake_unlock and
lll_futex_wake.
* pthread_cond_timedwait.c (__pthread_cond_wait): Add
pshared variable, pass it to lll_lock, lll_unlock,
lll_futex_timedwait and lll_futex_wake.
* pthread_cond_wait.c (__condvar_cleanup, __pthread_cond_wait): Add
pshared variable, pass it to lll_lock, lll_unlock, lll_futex_wait
and lll_futex_wake.
* sysdeps/unix/sysv/linux/alpha/lowlevellock.h (lll_futex_requeue,
lll_futex_wake_unlock): Add private argument, use __lll_private_flag
macro.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h (lll_futex_requeue,
lll_futex_wake_unlock): Likewise.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h (lll_futex_requeue):
Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (lll_futex_requeue,
lll_futex_wake_unlock): Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (lll_futex_requeue):
Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h (lll_futex_requeue,
lll_futex_wake_unlock): Likewise.
(lll_futex_wake): Fix a typo.
* sysdeps/unix/sysv/linux/pthread-pi-defines.sym (PS_BIT): Add.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_broadcast.S
(__pthread_cond_broadcast): Pass LLL_PRIVATE to lll_* and or
FUTEX_PRIVATE_FLAG into SYS_futex op if cv is process private.
Don't use FUTEX_CMP_REQUEUE if dep_mutex is not process private.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_signal.S
(__pthread_cond_signal): Pass LLL_PRIVATE to lll_* and or
FUTEX_PRIVATE_FLAG into SYS_futex op if cv is process private.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
(__pthread_cond_timedwait): Likewise.
* sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:
(__condvar_cleanup, __pthread_cond_wait): Likewise.
2007-08-11 18:50:51 +00:00
|
|
|
PTHREAD_MUTEX_PSHARED (mutex));
|
2006-08-14 23:11:18 +00:00
|
|
|
|
|
|
|
int oldprio = newval >> PTHREAD_MUTEX_PRIO_CEILING_SHIFT;
|
2012-05-25 20:35:08 +00:00
|
|
|
|
|
|
|
LIBC_PROBE (mutex_release, 1, mutex);
|
|
|
|
|
2006-08-14 23:11:18 +00:00
|
|
|
return __pthread_tpp_change_priority (oldprio, -1);
|
|
|
|
|
2005-12-23 23:49:41 +00:00
|
|
|
default:
|
|
|
|
/* Correct code cannot set any other type. */
|
|
|
|
return EINVAL;
|
2004-12-22 20:10:10 +00:00
|
|
|
}
|
2007-07-12 18:26:36 +00:00
|
|
|
|
2012-05-25 20:35:08 +00:00
|
|
|
LIBC_PROBE (mutex_release, 1, mutex);
|
Initial revision
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (queue_stack): Don't remove stack from list here.
Do it in the caller. Correct condition to prematurely terminate
loop to free stacks.
(__deallocate_stack): Remove stack from list here.
2002-11-26 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-stack1.
* tst-stack1.c: New file.
* allocatestack.c (allocate_stack): Initialize the TCB on a user
provided stack.
* pthread_attr_getstack.c: Return bottom of the thread area.
2002-11-25 Ulrich Drepper <drepper@redhat.com>
* Makefile (libpthread-routines): Add pt-allocrtsig and
pthread_kill_other_threads.
* pt-allocrtsig.c: New file.
* pthread_kill_other_threads.c: New file.
* sysdeps/unix/sysv/linux/allocrtsig.c: Add additional aliases for
all three functions.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Remove
allocrtsig.
* sysdeps/unix/sysv/linux/Versions (libc:GLIBC_PRIVATE): Export
__libc_current_sigrtmin_private, __libc_current_sigrtmax_private,
and __libc_allocate_rtsig_private.
* Versions (libpthread): Export pthread_kill_other_threads_np,
__libc_current_sigrtmin, and __libc_current_sigrtmax.
2002-11-24 Ulrich Drepper <drepper@redhat.com>
* allocatestack.c (allocate_stack): stackaddr in attribute points to
the end of the stack. Adjust computations.
When mprotect call fails dequeue stack and free it.
* pthread_attr_setstack.c: Store top of the stack in stackaddr
attribute.
* pthread_getattr_np.c: Likewise.
* descr.h (IS_DETACHED): Add some more parenthesis to prevent
surprises.
2002-11-23 Ulrich Drepper <drepper@redhat.com>
* sysdeps/pthread/pthread.h (pthread_self): __THROW must come before
attribute definitions. Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-11-22 Ulrich Drepper <drepper@redhat.com>
* pthread_getspecific.c: Optimize access to first 2nd-level array.
* pthread_setspecific.c: Likewise.
2002-11-21 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/createthread.c: Remove CLONE_ flags
definitions. Get them from the official place.
* sysdeps/unix/sysv/linux/i386/fork.c: Likewise.
* sysdeps/unix/sysv/linux/i386/createthread.c: Update CLONE_* flags.
Use new CLONE_ flags in clone() calls.
* sysdeps/unix/sysv/linux/fork.c: Use ARCH_FORK to actually fork.
* sysdeps/unix/sysv/linux/i386/fork.c: New file.
* Versions: Add pthread_* functions for libc.
* forward.c: New file.
* sysdeps/pthread/Makefile (libpthread-sysdeps_routines): Add
errno-loc.
* herrno.c: New file.
* res.c: New file.
* Makefile (libpthread-routines): Remove sem_post, sem_wait,
sem_trywait, and sem_timedwait. Add herrno and res.
* sem_init.c: Don't initialize lock and waiters members.
* sem_open.c: Likewise.
* sem_post.c: Removed.
* sem_wait.c: Removed.
* sem_trywait.c: Removed.
* sem_timedwait.c: Removed.
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Complete rewrite.
Includes full implementations of sem_post, sem_wait, sem_trywait,
and sem_timedwait.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Adjust
for new implementation.
* sysdeps/unix/sysv/linux/internaltypes.h (struct sem): Remove lock
and waiters fields.
* tst-sem3.c: Improve error message.
* tst-signal3.c: Likewise.
* init.c (__pthread_initialize_minimal): Use set_tid_address syscall
to tell the kernel about the termination futex and to initialize tid
member. Don't initialize main_thread.
* descr.h (struct pthread): Remove main_thread member.
* cancelllation.c (__do_cancel): Remove code handling main thread.
The main thread is not special anymore.
* allocatestack.c (__reclaim_stacks): Mark stacks as unused. Add
size of the stacks to stack_cache_actsize.
* pt-readv.c: Add missing "defined".
* pt-sigwait.c: Likewise.
* pt-writev.c: Likewise.
2002-11-09 Ulrich Drepper <drepper@redhat.com>
* Versions: Export __connect from libpthread.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* Makefile (libpthread-routines): Add pt-raise.
* sysdeps/unix/sysv/linux/raise.c: New file.
* sysdeps/unix/sysv/linux/pt-raise.c: New file.
* sysdeps/generic/pt-raise.c: New file.
* pthread_cond_init.c: Initialize all data elements of the condvar
structure. Patch by Luca Barbieri <ldb@ldb.ods.org>.
* pthread_attr_init.c: Actually implement 2.0 compatibility version.
* pthread_create.c: Likewise.
* Makefile (tests): Add tst-key1, tst-key2, tst-key3.
* tst-key1.c: New file.
* tst-key2.c: New file.
* tst-key3.c: New file.
* Versions: Export pthread_detach for version GLIBC_2.0.
Reported by Saurabh Desai <sdesai@austin.ibm.com>.
2002-11-08 Ulrich Drepper <drepper@redhat.com>
* pthread_key_create.c: Terminate search after an unused key was found.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
* sysdeps/unix/sysv/linux/i386/pthread_once.S: Return zero.
Patch by Luca Barbieri <ldb@ldb.ods.org>.
2002-10-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/i486/lowlevelsem.S: Use slow generic
dynamic lookup for errno in PIC.
* allocatestack.c (get_cached_stack): Rearrange code slightly to
release the stack lock as soon as possible.
Call _dl_allocate_tls_init for TCB from the cache to re-initialize
the static TLS block.
(allocate_stack): Call _dl_allocate_tls_init for user-provided stack.
* cancellation.c: Renamed from cancelation.c.
* Makefile: Adjust accordingly.
* pthreadP.h (CANCELLATION_P): Renamed from CANCELATION_P.
* cleanup_defer.c: Use CANCELLATION_P.
* pthread_testcancel.c: Likewise.
* descr.h: Fix spelling in comments.
* init.c: Likewise.
* pthread_getattr_np.c: Likewise.
* pthread_getschedparam.c: Likewise.
* pthread_setschedparam.c: Likewise.
* Versions: Likewise.
* pt-pselect.c: New file.
* Makefile (libpthread-routines): Add pt-pselect.
* Versions: Add pselect.
* tst-cancel4.c: New file.
* Makefile (tests): Add tst-cancel4.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* pthread_mutex_lock.c: Always record lock ownership.
* pthread_mutex_timedlock.c: Likewise.
* pthread_mutex_trylock.c: Likewise.
* pt-readv.c: New file.
* pt-writev.c: New file.
* pt-creat.c: New file.
* pt-msgrcv.c: New file.
* pt-msgsnd.c: New file.
* pt-poll.c: New file.
* pt-select.c: New file.
* pt-sigpause.c: New file.
* pt-sigsuspend.c: New file.
* pt-sigwait.c: New file.
* pt-sigwaitinfo.c: New file.
* pt-waitid.c: New file.
* Makefile (libpthread-routines): Add pt-readv, pt-writev, pt-creat,
pt-msgrcv, pt-msgsnd, pt-poll, pt-select, pt-sigpause, pt-sigsuspend,
pt-sigwait, pt-sigwaitinfo, and pt-waitid.
* Versions: Add all the new functions.
* tst-exit1.c: New file.
* Makefile (tests): Add tst-exit1.
* sem_timedwait.c: Minor optimization for more optimal fastpath.
2002-10-08 Ulrich Drepper <drepper@redhat.com>
* pt-fcntl.c: Only enable asynchronous cancellation for F_SETLKW.
* pthread_join.c: Enable asynchronous cancellation around lll_wait_tid
call. pthread_join is an official cancellation point.
* pthread_timedjoin.c: Likewise.
* pthread_cond_wait.c: Revert order in which internal lock are dropped
and the condvar's mutex are retrieved.
* pthread_cond_timedwait.c: Likewise.
Reported by dice@saros.East.Sun.COM.
2002-10-07 Ulrich Drepper <drepper@redhat.com>
* pthreadP.h: Cut out all type definitions and move them...
* sysdeps/unix/sysv/linux/internaltypes.h: ...here. New file.
* pthreadP.h: Include <internaltypes.h>.
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h (lll_sem_post): Little
performance tweaks.
* sem_trywait.c: Shuffle #includes around to get right order.
* sem_timedwait.c: Likewise.
* sem_post.c: Likewise.
* sem_wait.c: Likewise.
* nptl 0.3 released.
* Makefile (tests): Add tst-signal3.
* tst-signal3.c: New file.
2002-10-05 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/i386/lowlevelsem.h: Tell the compiler that
the asms modify the sem object.
(__lll_sem_timedwait): Now takes struct sem* as first parameter.
* sysdeps/unix/sysv/linux/i386/bits/semaphore.h (sem_t): Don't expose
the actual members.
* pthreadP.h (struct sem): New type. Actual semaphore type.
* semaphoreP.h: Include pthreadP.h.
* sem_getvalue.c: Adjust to sem_t change.
* sem_init.c: Likewise.
* sem_open.c: Likewise.
* sem_post.c: Likewise.
* sem_timedwait.c: Likewise.
* sem_trywait.c: Likewise.
* sem_wait.c: Likewise.
2002-10-04 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Add tst-basic2, tst-exec1, tst-exec3, tst-exec3.
* tst-basic2.c: New file.
* tst-exec1.c: New file.
* tst-exec2.c: New file.
* tst-exec3.c: New file.
* tst-fork1.c: Remove extra */.
* nptl 0.2 released. The API for IA-32 is complete.
2002-11-26 22:50:54 +00:00
|
|
|
return 0;
|
|
|
|
}
|
2003-06-22 23:55:27 +00:00
|
|
|
|
|
|
|
|
|
|
|
int
|
2015-10-20 11:54:09 +00:00
|
|
|
__pthread_mutex_unlock (pthread_mutex_t *mutex)
|
2003-06-22 23:55:27 +00:00
|
|
|
{
|
2003-09-20 07:41:51 +00:00
|
|
|
return __pthread_mutex_unlock_usercnt (mutex, 1);
|
2003-06-22 23:55:27 +00:00
|
|
|
}
|
Clean pthread functions namespaces for C11 threads
This patch adds internal definition (through {libc_}hidden_{proto,def}) and
also change some strong to weak alias for symbols that might be used by C11
threads implementations.
The patchset should not change libc/libpthread functional, although object
changes are expected (since now internal symbols are used instead) and final
exported symbols through GLIBC_PRIVATE is also expanded (to cover libpthread
usage of __mmap{64}, __munmap, __mprotect).
Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu,
arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu,
microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu,
powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu,
tile{pro,gx}-linux-gnu, and x86_64-linux-gnu).
* include/sched.h (__sched_get_priority_max): Add libc hidden proto.
(__sched_get_prioriry_min): Likewise.
* include/sys/mman.h (__mmap): Likewise.
(__mmap64): Likewise.
(__munmap): Likewise.
(__mprotect): Likewise.
* include/termios.h (__tcsetattr): Likewise.
* include/time.h (__nanosleep): Use hidden_proto instead of
libc_hidden_proto.
* posix/nanosleep.c (__nanosleep): Likewise.
* misc/Versions (libc): Export __mmap, __munmap, __mprotect,
__sched_get_priority_min, and __sched_get_priority_max under
GLIBC_PRIVATE.
* nptl/allocatestack.c (__free_stacks): Use internal definition for
libc symbols.
(change_stack_perm): Likewise.
(allocate_stack): Likewise.
* sysdeps/posix/gethostname.c: Likewise.
* nptl/tpp.c (__init_sched_fifo_prio): Likewise.
* sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise.
* sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise.
* nptl/pthreadP.h (__pthread_mutex_timedlock): Add definition.
(__pthread_key_delete): Likewise.
(__pthread_detach): Likewise.
(__pthread_cancel): Likewise.
(__pthread_mutex_trylock): Likewise.
(__pthread_mutexattr_init): Likewise.
(__pthread_mutexattr_settype): Likewise.
* nptl/pthread_cancel.c (pthread_cancel): Change to internal name and
create alias for exported one.
* nptl/pthread_join.c (pthread_join): Likewise.
* nptl/pthread_detach.c (pthread_detach): Likewise.
* nptl/pthread_key_delete.c (pthread_key_delete): Likewise.
* nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise.
* nptl/pthread_create.c: Change static requirements for pthread
symbols.
* nptl/pthread_equal.c (__pthread_equal): Change strong alias to weak
for internal definition.
* nptl/pthread_exit.c (__pthread_exit): Likewise.
* nptl/pthread_getspecific.c (__pthread_getspecific): Likewise.
* nptl/pthread_key_create.c (__pthread_key_create): Likewise.
* nptl/pthread_mutex_destroy.c (__pthread_mutex_destroy): Likewise.
* nptl/pthread_mutex_init.c (__pthread_mutex_init): Likewise.
* nptl/pthread_mutex_lock.c (__pthread_mutex_lock): Likewise.
* nptl/pthread_mutex_trylock.c (__pthread_mutex_trylock): Likewise.
* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock): Likewise.
* nptl/pthread_mutexattr_init.c (__pthread_mutexattr_init): Likwise.
* nptl/pthread_mutexattr_settype.c (__pthread_mutexattr_settype):
Likewise.
* nptl/pthread_self.c (__pthread_self): Likewise.
* nptl/pthread_setspecific.c (__pthread_setspecific): Likewise.
* sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise.
* misc/mmap.c (__mmap): Add internal symbol definition.
* misc/mmap.c (__mmap64): Likewise.
* sysdeps/unix/sysv/linux/mmap.c (__mmap): Likewise.
* sysdeps/unix/sysv/linux/mmap64.c (__mmap): Likewise.
(__mmap64): Likewise.
* sysdeps/unix/sysv/linux/i386/Versions (libc) [GLIBC_PRIVATE):
Add __uname.
2016-12-02 18:32:28 +00:00
|
|
|
weak_alias (__pthread_mutex_unlock, pthread_mutex_unlock)
|
2012-05-26 20:16:19 +00:00
|
|
|
hidden_def (__pthread_mutex_unlock)
|