| 123456789101112131415161718192021222324252627282930313233343536373839404142434445 |
- /* Copyright (C) 2003 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Richard Henderson <rth@twiddle.net>, 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, see
- <http://www.gnu.org/licenses/>. */
- #define _ERRNO_H 1
- #include <bits/errno.h>
- .text
- .align 4
- .globl pthread_spin_trylock
- .ent pthread_spin_trylock
- pthread_spin_trylock:
- .frame $sp, 0, $26, 0
- .prologue 0
- 0: ldl_l $1, 0($16)
- lda $2, 1
- lda $0, EBUSY
- bne $1, 1f
- stl_c $2, 0($16)
- beq $2, 2f
- mb
- lda $0, 0
- 1: ret
- 2: br 0b
- .end pthread_spin_trylock
|
