diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/hppa')
| -rw-r--r-- | sysdeps/unix/sysv/linux/hppa/internaltypes.h | 40 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/hppa/pthread_cond_timedwait.c | 41 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c | 13 |
3 files changed, 36 insertions, 58 deletions
diff --git a/sysdeps/unix/sysv/linux/hppa/internaltypes.h b/sysdeps/unix/sysv/linux/hppa/internaltypes.h index 651ce2ee45..d6496579da 100644 --- a/sysdeps/unix/sysv/linux/hppa/internaltypes.h +++ b/sysdeps/unix/sysv/linux/hppa/internaltypes.h @@ -46,32 +46,38 @@ fails because __initializer is zero, and the structure will be used as is correctly. */ #define cond_compat_clear(var) \ -({ \ - int tmp = 0; \ - var->__data.__lock = 0; \ - var->__data.__futex = 0; \ - var->__data.__mutex = NULL; \ - /* Clear __initializer last, to indicate initialization is done. */ \ - __asm__ __volatile__ ("stw,ma %1,0(%0)" \ - : : "r" (&var->__data.__initializer), "r" (tmp) : "memory"); \ +({ \ + int tmp = 0; \ + var->__data.__wseq = 0; \ + var->__data.__signals_sent = 0; \ + var->__data.__confirmed = 0; \ + var->__data.__generation = 0; \ + var->__data.__mutex = NULL; \ + var->__data.__quiescence_waiters = 0; \ + var->__data.__clockid = 0; \ + /* Clear __initializer last, to indicate initialization is done. */ \ + /* This synchronizes-with the acquire load below. */ \ + atomic_store_release (&var->__data.__initializer, 0); \ }) #define cond_compat_check_and_clear(var) \ ({ \ - int ret; \ - volatile int *value = &var->__data.__initializer; \ - if ((ret = atomic_compare_and_exchange_val_acq(value, 2, 1))) \ + int v; \ + int *value = &var->__data.__initializer; \ + /* This synchronizes-with the release store above. */ \ + while ((v = atomic_load_acquire (value)) != 0) \ { \ - if (ret == 1) \ + if (v == 1 \ + /* Relaxed MO is fine; it only matters who's first. */ \ + && atomic_compare_exchange_acquire_weak_relaxed (value, 1, 2)) \ { \ - /* Initialize structure. */ \ + /* We're first; initialize structure. */ \ cond_compat_clear (var); \ + break; \ } \ else \ - { \ - /* Yield until structure is initialized. */ \ - while (*value == 2) sched_yield (); \ - } \ + /* Yield before we re-check initialization status. */ \ + sched_yield (); \ } \ }) diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_timedwait.c b/sysdeps/unix/sysv/linux/hppa/pthread_cond_timedwait.c deleted file mode 100644 index ec6fd23f58..0000000000 --- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_timedwait.c +++ /dev/null @@ -1,41 +0,0 @@ -/* Copyright (C) 2009-2016 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Carlos O'Donell <carlos@codesourcery.com>, 2009. - - 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, see - <http://www.gnu.org/licenses/>. */ - -#ifndef INCLUDED_SELF -# define INCLUDED_SELF -# include <pthread_cond_timedwait.c> -#else -# include <pthread.h> -# include <pthreadP.h> -# include <internaltypes.h> -# include <shlib-compat.h> -int -__pthread_cond_timedwait (pthread_cond_t *cond, pthread_mutex_t *mutex, - const struct timespec *abstime) -{ - cond_compat_check_and_clear (cond); - return __pthread_cond_timedwait_internal (cond, mutex, abstime); -} -versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, - GLIBC_2_3_2); -# undef versioned_symbol -# define versioned_symbol(lib, local, symbol, version) -# undef __pthread_cond_timedwait -# define __pthread_cond_timedwait __pthread_cond_timedwait_internal -# include_next <pthread_cond_timedwait.c> -#endif diff --git a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c b/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c index 8f028317c6..0611f7d25f 100644 --- a/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c +++ b/sysdeps/unix/sysv/linux/hppa/pthread_cond_wait.c @@ -32,9 +32,22 @@ __pthread_cond_wait (pthread_cond_t *cond, pthread_mutex_t *mutex) } versioned_symbol (libpthread, __pthread_cond_wait, pthread_cond_wait, GLIBC_2_3_2); +int +__pthread_cond_timedwait (cond, mutex, abstime) + pthread_cond_t *cond; + pthread_mutex_t *mutex; + const struct timespec *abstime; +{ + cond_compat_check_and_clear (cond); + return __pthread_cond_timedwait_internal (cond, mutex, abstime); +} +versioned_symbol (libpthread, __pthread_cond_timedwait, pthread_cond_timedwait, + GLIBC_2_3_2); # undef versioned_symbol # define versioned_symbol(lib, local, symbol, version) # undef __pthread_cond_wait # define __pthread_cond_wait __pthread_cond_wait_internal +# undef __pthread_cond_timedwait +# define __pthread_cond_timedwait __pthread_cond_timedwait_internal # include_next <pthread_cond_wait.c> #endif |