mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 23:30:07 +00:00
b33e61633a
allocate space even for the trailing '/'. Reported by John Reiser <jreiser@BitWagon.com>. * sysdeps/unix/sysv/linux/ia64/sysdep.h (LOAD_ARGS_6, ASM_ARGS_6, ASM_CLOBBERS_6): Define. (ASM_CLOBBERS_5): Use ASM_CLOBBERS_6. * sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Reorder arguments to match IA-32 order. * sysdeps/unix/sysv/linux/i386/clone.S: Fix comment.
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/* Copyright (C) 2003 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. */
|
|
|
|
#include "pthreadP.h"
|
|
|
|
int
|
|
pthread_spin_lock (lock)
|
|
pthread_spinlock_t *lock;
|
|
{
|
|
int *p = (int *) lock;
|
|
|
|
while (__builtin_expect (__sync_val_compare_and_swap_si (p, 0, 1), 0))
|
|
{
|
|
/* Spin without using the atomic instruction. */
|
|
do
|
|
__asm __volatile ("" : : : "memory");
|
|
while (*p);
|
|
}
|
|
return 0;
|
|
}
|