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- /* 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, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- .text
- .align 4
- .globl pthread_spin_lock
- .ent pthread_spin_lock
- pthread_spin_lock:
- .frame $sp, 0, $26, 0
- .prologue 0
- 0: ldl_l $1, 0($16)
- lda $2, 1
- lda $0, 0
- bne $1, 1f
- stl_c $2, 0($16)
- beq $2, 1f
- mb
- ret
- 1: ldl $1, 0($16)
- bne $1, 1b
- unop
- br 0b
- .end pthread_spin_lock
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