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- /* Copyright (C) 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
- 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. */
- #define _ERRNO_H 1
- #include <bits/errno.h>
- #include <sysdep.h>
- .text
- .align 4
- ENTRY (pthread_spin_trylock)
- mov r1, #1
- swp r2, r1, [r0]
- teq r2, #0
- moveq r0, #0
- movne r0, #EBUSY
- PSEUDO_RET_NOERRNO
- END (pthread_spin_trylock)
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