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* sysdeps/unix/sysv/linux/m68k/fchownat.c: Include string.h.
* sysdeps/sparc/sparc32/dl-machine.h (LD_SO_PRELOAD): Remove unused define. * sysdeps/sparc/sparc32/bits/atomic.h: Include stdint.h, add {,u}atomic*_t typedefs. (__sparc32_atomic_do_lock): Add __volatile and memory clobber. (__sparc32_atomic_do_unlock): Add memory barrier. (__sparc32_atomic_do_lock24, __sparc32_atomic_do_unlock24): Define. [!SHARED] (__v9_compare_and_exchange_val_32_acq): Define. (__v7_compare_and_exchange_val_acq, __v7_compare_and_exchange_bool_acq, __v7_exchange_acq, __v7_exchange_and_add, __v7_exchange_24_rel, __v7_compare_and_exchange_val_24_acq, __atomic_is_v9, atomic_exchange_acq, atomic_compare_and_exchange_val_24_acq, atomic_exchange_24_rel): Define. [SHARED] (atomic_exchange_and_add): Define. [!SHARED] (__ATOMIC_HWCAP_SPARC_V9): Define. [!SHARED] (_dl_hwcap): New weak decl. * sysdeps/sparc/sparc32/sparcv9/bits/atomic.h (atomic_exchange_24_rel, atomic_compare_and_exchange_val_24_acq): Define. * sysdeps/sparc/sparc64/bits/atomic.h (atomic_exchange_24_rel, atomic_compare_and_exchange_val_24_acq): Define.
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Ulrich Drepper
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Jan 4, 2006
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131 changes: 131 additions & 0 deletions
131
nptl/sysdeps/unix/sysv/linux/sparc/sparc32/lowlevellock.c
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/* low level locking for pthread library. SPARC version. | ||
Copyright (C) 2003, 2006 Free Software Foundation, Inc. | ||
This file is part of the GNU C Library. | ||
Contributed by Paul Mackerras <paulus@au.ibm.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. */ | ||
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#include <errno.h> | ||
#include <sysdep.h> | ||
#include <lowlevellock.h> | ||
#include <sys/time.h> | ||
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void | ||
__lll_lock_wait (int *futex) | ||
{ | ||
do | ||
{ | ||
int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); | ||
if (oldval != 0) | ||
lll_futex_wait (futex, 2); | ||
} | ||
while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); | ||
} | ||
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int | ||
__lll_timedlock_wait (int *futex, const struct timespec *abstime) | ||
{ | ||
/* Reject invalid timeouts. */ | ||
if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) | ||
return EINVAL; | ||
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do | ||
{ | ||
struct timeval tv; | ||
struct timespec rt; | ||
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/* Get the current time. */ | ||
(void) __gettimeofday (&tv, NULL); | ||
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/* Compute relative timeout. */ | ||
rt.tv_sec = abstime->tv_sec - tv.tv_sec; | ||
rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; | ||
if (rt.tv_nsec < 0) | ||
{ | ||
rt.tv_nsec += 1000000000; | ||
--rt.tv_sec; | ||
} | ||
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/* Already timed out? */ | ||
if (rt.tv_sec < 0) | ||
return ETIMEDOUT; | ||
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/* Wait. */ | ||
int oldval = atomic_compare_and_exchange_val_24_acq (futex, 2, 1); | ||
if (oldval != 0) | ||
lll_futex_timed_wait (futex, 2, &rt); | ||
} | ||
while (atomic_compare_and_exchange_val_24_acq (futex, 2, 0) != 0); | ||
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return 0; | ||
} | ||
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/* These don't get included in libc.so */ | ||
#ifdef IS_IN_libpthread | ||
int | ||
lll_unlock_wake_cb (int *futex) | ||
{ | ||
int val = atomic_exchange_24_rel (futex, 0); | ||
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if (__builtin_expect (val > 1, 0)) | ||
lll_futex_wake (futex, 1); | ||
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return 0; | ||
} | ||
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int | ||
__lll_timedwait_tid (int *tidp, const struct timespec *abstime) | ||
{ | ||
int tid; | ||
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if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) | ||
return EINVAL; | ||
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/* Repeat until thread terminated. */ | ||
while ((tid = *tidp) != 0) | ||
{ | ||
struct timeval tv; | ||
struct timespec rt; | ||
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/* Get the current time. */ | ||
(void) __gettimeofday (&tv, NULL); | ||
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/* Compute relative timeout. */ | ||
rt.tv_sec = abstime->tv_sec - tv.tv_sec; | ||
rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; | ||
if (rt.tv_nsec < 0) | ||
{ | ||
rt.tv_nsec += 1000000000; | ||
--rt.tv_sec; | ||
} | ||
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/* Already timed out? */ | ||
if (rt.tv_sec < 0) | ||
return ETIMEDOUT; | ||
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/* Wait until thread terminates. */ | ||
if (lll_futex_timed_wait (tidp, tid, &rt) == -ETIMEDOUT) | ||
return ETIMEDOUT; | ||
} | ||
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return 0; | ||
} | ||
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#endif |
62 changes: 62 additions & 0 deletions
62
nptl/sysdeps/unix/sysv/linux/sparc/sparc32/pthread_barrier_init.c
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/* Copyright (C) 2002, 2006 Free Software Foundation, Inc. | ||
This file is part of the GNU C Library. | ||
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. | ||
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. */ | ||
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#include <errno.h> | ||
#include "pthreadP.h" | ||
#include <lowlevellock.h> | ||
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struct sparc_pthread_barrier | ||
{ | ||
struct pthread_barrier b; | ||
unsigned char left_lock; | ||
unsigned char pshared; | ||
}; | ||
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int | ||
pthread_barrier_init (barrier, attr, count) | ||
pthread_barrier_t *barrier; | ||
const pthread_barrierattr_t *attr; | ||
unsigned int count; | ||
{ | ||
struct sparc_pthread_barrier *ibarrier; | ||
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if (__builtin_expect (count == 0, 0)) | ||
return EINVAL; | ||
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struct pthread_barrierattr *iattr = (struct pthread_barrierattr *) attr; | ||
if (iattr != NULL) | ||
{ | ||
if (iattr->pshared != PTHREAD_PROCESS_PRIVATE | ||
&& __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0)) | ||
/* Invalid attribute. */ | ||
return EINVAL; | ||
} | ||
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ibarrier = (struct sparc_pthread_barrier *) barrier; | ||
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/* Initialize the individual fields. */ | ||
ibarrier->b.lock = LLL_LOCK_INITIALIZER; | ||
ibarrier->b.left = count; | ||
ibarrier->b.init_count = count; | ||
ibarrier->b.curr_event = 0; | ||
ibarrier->left_lock = 0; | ||
ibarrier->pshared = (iattr && iattr->pshared == PTHREAD_PROCESS_SHARED); | ||
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return 0; | ||
} |
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