diff options
Diffstat (limited to 'sysdeps')
-rw-r--r-- | sysdeps/generic/pt-mutex-unlock.c | 7 | ||||
-rw-r--r-- | sysdeps/hurd/pt-setspecific.c | 5 | ||||
-rw-r--r-- | sysdeps/ia32/bits/atomic.h | 66 | ||||
-rw-r--r-- | sysdeps/posix/pt-spin.c | 2 |
4 files changed, 70 insertions, 10 deletions
diff --git a/sysdeps/generic/pt-mutex-unlock.c b/sysdeps/generic/pt-mutex-unlock.c index d2a42570..492dfcb5 100644 --- a/sysdeps/generic/pt-mutex-unlock.c +++ b/sysdeps/generic/pt-mutex-unlock.c @@ -37,12 +37,7 @@ __pthread_mutex_unlock (pthread_mutex_t *mutex) if (_pthread_self ()) { assert (mutex->owner); - assertx (mutex->owner == _pthread_self (), - "%p(%x) != %p(%x)", - mutex->owner, - ((struct __pthread *) mutex->owner)->threadid, - _pthread_self (), - _pthread_self ()->threadid); + assert (mutex->owner == _pthread_self ()); mutex->owner = NULL; } #endif diff --git a/sysdeps/hurd/pt-setspecific.c b/sysdeps/hurd/pt-setspecific.c index d2d1157c..89ca4d7f 100644 --- a/sysdeps/hurd/pt-setspecific.c +++ b/sysdeps/hurd/pt-setspecific.c @@ -1,5 +1,5 @@ /* pthread_setspecific. Generic version. - Copyright (C) 2002, 2008 Free Software Foundation, Inc. + Copyright (C) 2002 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -30,8 +30,7 @@ pthread_setspecific (pthread_key_t key, const void *value) if (! self->thread_specifics) { - err = hurd_ihash_create (&self->thread_specifics, false, - HURD_IHASH_NO_LOCP); + err = hurd_ihash_create (&self->thread_specifics, HURD_IHASH_NO_LOCP); if (err) return ENOMEM; } diff --git a/sysdeps/ia32/bits/atomic.h b/sysdeps/ia32/bits/atomic.h new file mode 100644 index 00000000..0dfc1f60 --- /dev/null +++ b/sysdeps/ia32/bits/atomic.h @@ -0,0 +1,66 @@ +/* Atomic operations. i386 version. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _BITS_ATOMIC_H +#define _BITS_ATOMIC_H 1 + +typedef __volatile int __atomic_t; + +static inline void +__atomic_inc (__atomic_t *__var) +{ + __asm__ __volatile ("lock; incl %0" : "=m" (*__var) : "m" (*__var)); +} + +static inline void +__atomic_dec (__atomic_t *__var) +{ + __asm__ __volatile ("lock; decl %0" : "=m" (*__var) : "m" (*__var)); +} + +static inline int +__atomic_dec_and_test (__atomic_t *__var) +{ + unsigned char __ret; + + __asm__ __volatile ("lock; decl %0; sete %1" + : "=m" (*__var), "=qm" (__ret) : "m" (*__var)); + return __ret != 0; +} + +/* We assume that an __atomicptr_t is only used for pointers to + word-aligned objects, and use the lowest bit for a simple lock. */ +typedef __volatile int * __atomicptr_t; + +/* Actually we don't implement that yet, and assume that we run on + something that has the i486 instruction set. */ +static inline int +__atomicptr_compare_and_swap (__atomicptr_t *__ptr, void *__oldval, + void * __newval) +{ + char __ret; + int __dummy; + + __asm__ __volatile ("lock; cmpxchgl %3, %1; sete %0" + : "=q" (__ret), "=m" (*__ptr), "=a" (__dummy) + : "r" (__newval), "m" (*__ptr), "a" (__oldval)); + return __ret; +} + +#endif diff --git a/sysdeps/posix/pt-spin.c b/sysdeps/posix/pt-spin.c index 26793b08..cb809c64 100644 --- a/sysdeps/posix/pt-spin.c +++ b/sysdeps/posix/pt-spin.c @@ -1,5 +1,5 @@ /* Spin locks. - Copyright (C) 2000, 2005 Free Software Foundation, Inc. + Copyright (C) 2000, 2004, 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or |