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Diffstat (limited to 'libpthread/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h')
-rw-r--r-- | libpthread/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h b/libpthread/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h deleted file mode 100644 index e13358ffe..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/ia64/lowlevellock.h +++ /dev/null @@ -1,204 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, write to the Free - Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA - 02111-1307 USA. */ - -#ifndef _LOWLEVELLOCK_H -#define _LOWLEVELLOCK_H 1 - -#include <time.h> -#include <sys/param.h> -#include <bits/pthreadtypes.h> -#include <ia64intrin.h> -#include <atomic.h> - -#define __NR_futex 1230 -#define FUTEX_WAIT 0 -#define FUTEX_WAKE 1 -#define FUTEX_REQUEUE 3 -#define FUTEX_CMP_REQUEUE 4 - -/* Delay in spinlock loop. */ -#define BUSY_WAIT_NOP asm ("hint @pause") - -/* Initializer for compatibility lock. */ -#define LLL_MUTEX_LOCK_INITIALIZER (0) - -#define lll_futex_wait(futex, val) lll_futex_timed_wait (futex, val, 0) - -#define lll_futex_timed_wait(ftx, val, timespec) \ -({ \ - DO_INLINE_SYSCALL(futex, 4, (long) (ftx), FUTEX_WAIT, (int) (val), \ - (long) (timespec)); \ - _r10 == -1 ? -_retval : _retval; \ -}) - -#define lll_futex_wake(ftx, nr) \ -({ \ - DO_INLINE_SYSCALL(futex, 3, (long) (ftx), FUTEX_WAKE, (int) (nr)); \ - _r10 == -1 ? -_retval : _retval; \ -}) - -/* Returns non-zero if error happened, zero if success. */ -#define lll_futex_requeue(ftx, nr_wake, nr_move, mutex, val) \ -({ \ - DO_INLINE_SYSCALL(futex, 6, (long) (ftx), FUTEX_CMP_REQUEUE, \ - (int) (nr_wake), (int) (nr_move), (long) (mutex), \ - (int) val); \ - _r10 == -1; \ -}) - - -#define __lll_mutex_trylock(futex) \ - (atomic_compare_and_exchange_val_acq (futex, 1, 0) != 0) -#define lll_mutex_trylock(futex) __lll_mutex_trylock (&(futex)) - - -#define __lll_mutex_cond_trylock(futex) \ - (atomic_compare_and_exchange_val_acq (futex, 2, 0) != 0) -#define lll_mutex_cond_trylock(futex) __lll_mutex_cond_trylock (&(futex)) - - -extern void __lll_lock_wait (int *futex) attribute_hidden; - - -#define __lll_mutex_lock(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - if (atomic_compare_and_exchange_bool_acq (__futex, 1, 0) != 0) \ - __lll_lock_wait (__futex); \ - })) -#define lll_mutex_lock(futex) __lll_mutex_lock (&(futex)) - - -#define __lll_mutex_cond_lock(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - if (atomic_compare_and_exchange_bool_acq (__futex, 2, 0) != 0) \ - __lll_lock_wait (__futex); \ - })) -#define lll_mutex_cond_lock(futex) __lll_mutex_cond_lock (&(futex)) - - -extern int __lll_timedlock_wait (int *futex, const struct timespec *) - attribute_hidden; - - -#define __lll_mutex_timedlock(futex, abstime) \ - ({ \ - int *__futex = (futex); \ - int __val = 0; \ - \ - if (atomic_compare_and_exchange_bool_acq (__futex, 1, 0) != 0) \ - __val = __lll_timedlock_wait (__futex, abstime); \ - __val; \ - }) -#define lll_mutex_timedlock(futex, abstime) \ - __lll_mutex_timedlock (&(futex), abstime) - - -#define __lll_mutex_unlock(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - int __val = atomic_exchange_rel (__futex, 0); \ - \ - if (__builtin_expect (__val > 1, 0)) \ - lll_futex_wake (__futex, 1); \ - })) -#define lll_mutex_unlock(futex) \ - __lll_mutex_unlock(&(futex)) - - -#define __lll_mutex_unlock_force(futex) \ - ((void) ({ \ - int *__futex = (futex); \ - (void) atomic_exchange_rel (__futex, 0); \ - lll_futex_wake (__futex, 1); \ - })) -#define lll_mutex_unlock_force(futex) \ - __lll_mutex_unlock_force(&(futex)) - - -#define lll_mutex_islocked(futex) \ - (futex != 0) - - -/* We have a separate internal lock implementation which is not tied - to binary compatibility. We can use the lll_mutex_*. */ - -/* Type for lock object. */ -typedef int lll_lock_t; - -extern int lll_unlock_wake_cb (int *__futex) attribute_hidden; - -/* Initializers for lock. */ -#define LLL_LOCK_INITIALIZER (0) -#define LLL_LOCK_INITIALIZER_LOCKED (1) - -#define lll_trylock(futex) lll_mutex_trylock (futex) -#define lll_lock(futex) lll_mutex_lock (futex) -#define lll_unlock(futex) lll_mutex_unlock (futex) -#define lll_islocked(futex) lll_mutex_islocked (futex) - - -/* The kernel notifies a process with uses CLONE_CLEARTID via futex - wakeup when the clone terminates. The memory location contains the - thread ID while the clone is running and is reset to zero - afterwards. */ -#define lll_wait_tid(tid) \ - do \ - { \ - __typeof (tid) __tid; \ - while ((__tid = (tid)) != 0) \ - lll_futex_wait (&(tid), __tid); \ - } \ - while (0) - -extern int __lll_timedwait_tid (int *, const struct timespec *) - attribute_hidden; - -#define lll_timedwait_tid(tid, abstime) \ - ({ \ - int __res = 0; \ - if ((tid) != 0) \ - __res = __lll_timedwait_tid (&(tid), (abstime)); \ - __res; \ - }) - - -/* Conditional variable handling. */ - -extern void __lll_cond_wait (pthread_cond_t *cond) - attribute_hidden; -extern int __lll_cond_timedwait (pthread_cond_t *cond, - const struct timespec *abstime) - attribute_hidden; -extern void __lll_cond_wake (pthread_cond_t *cond) - attribute_hidden; -extern void __lll_cond_broadcast (pthread_cond_t *cond) - attribute_hidden; - -#define lll_cond_wait(cond) \ - __lll_cond_wait (cond) -#define lll_cond_timedwait(cond, abstime) \ - __lll_cond_timedwait (cond, abstime) -#define lll_cond_wake(cond) \ - __lll_cond_wake (cond) -#define lll_cond_broadcast(cond) \ - __lll_cond_broadcast (cond) - -#endif /* lowlevellock.h */ |