0a6a1f1d05
This brings our tree to NetBSD 7.0, as found on -current on the 10-10-2015. This updates: - LLVM to 3.6.1 - GCC to GCC 5.1 - Replace minix/commands/zdump with usr.bin/zdump - external/bsd/libelf has moved to /external/bsd/elftoolchain/ - Import ctwm - Drop sprintf from libminc Change-Id: I149836ac18e9326be9353958bab9b266efb056f0
72 lines
2.6 KiB
ArmAsm
72 lines
2.6 KiB
ArmAsm
/* $NetBSD: atomic_cas_32.S,v 1.2 2015/03/27 06:42:37 matt Exp $ */
|
|
/*-
|
|
* Copyright (c) 2014 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Matt Thomas <matt@3am-software.com>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "atomic_op_asm.h"
|
|
|
|
ENTRY_NP(_atomic_cas_32)
|
|
mv t0, a0
|
|
1: lr.w a0, 0(t0)
|
|
bne a1, a0, 2f
|
|
sc.w t1, a2, 0(t0)
|
|
bnez t1, 1b
|
|
2:
|
|
ret
|
|
END(_atomic_cas_32)
|
|
|
|
ATOMIC_OP_ALIAS(atomic_cas_32,_atomic_cas_32)
|
|
ATOMIC_OP_ALIAS(atomic_cas_uint,_atomic_cas_32)
|
|
STRONG_ALIAS(_atomic_cas_uint,_atomic_cas_32)
|
|
#ifndef _LP64
|
|
ATOMIC_OP_ALIAS(atomic_cas_ulong,_atomic_cas_32)
|
|
STRONG_ALIAS(_atomic_cas_ulong,_atomic_cas_32)
|
|
ATOMIC_OP_ALIAS(atomic_cas_ulong_ni,_atomic_cas_32)
|
|
STRONG_ALIAS(_atomic_cas_ulong_ni,_atomic_cas_32)
|
|
ATOMIC_OP_ALIAS(atomic_cas_ptr,_atomic_cas_32)
|
|
STRONG_ALIAS(_atomic_cas_ptr,_atomic_cas_32)
|
|
ATOMIC_OP_ALIAS(atomic_cas_ptr_ni,_atomic_cas_32)
|
|
STRONG_ALIAS(_atomic_cas_ptr_ni,_atomic_cas_32)
|
|
#endif
|
|
CRT_ALIAS(__sync_val_compare_and_swap_4,_atomic_cas_32)
|
|
|
|
ENTRY_NP(_atomic_bool_cas_32)
|
|
mv t0, a0
|
|
li a0, 0
|
|
1: lr.w t1, 0(t0)
|
|
bne a1, t1, 2f
|
|
sc.w t1, a2, 0(t0)
|
|
bnez t1, 1b
|
|
li a0, 1
|
|
2:
|
|
ret
|
|
END(_atomic_bool_cas_32)
|
|
|
|
ATOMIC_OP_ALIAS(atomic_bool_cas_32,_atomic_bool_cas_32)
|
|
CRT_ALIAS(__bool_val_compare_and_swap_4,_atomic_bool_cas_32)
|