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
129 lines
3.7 KiB
ArmAsm
129 lines
3.7 KiB
ArmAsm
/* $NetBSD: atomic_add.S,v 1.10 2014/06/23 21:53:45 joerg Exp $ */
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/*-
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* Copyright (c) 2007 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Jason R. Thorpe.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "atomic_op_asm.h"
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.text
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.align 2
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ENTRY(_atomic_add_32)
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movl 4(%sp), %a0
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movl 8(%sp), %d0
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addl %d0, (%a0)
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rts
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END(_atomic_add_32)
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ATOMIC_OP_ALIAS(atomic_add_32,_atomic_add_32)
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ATOMIC_OP_ALIAS(atomic_add_int,_atomic_add_32)
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STRONG_ALIAS(_atomic_add_int,_atomic_add_32)
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ATOMIC_OP_ALIAS(atomic_add_long,_atomic_add_32)
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STRONG_ALIAS(_atomic_add_long,_atomic_add_32)
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ATOMIC_OP_ALIAS(atomic_add_ptr,_atomic_add_32)
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STRONG_ALIAS(_atomic_add_ptr,_atomic_add_32)
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ENTRY(_atomic_add_32_nv)
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movl 4(%sp), %a0
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1: movl (%a0), %d0
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movl %d0, %d1
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addl 8(%sp), %d0
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casl %d1, %d0, (%a0)
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bne 1b
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movl %d0, %a0 /* pointers return also in %a0 */
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rts
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END(_atomic_add_32_nv)
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ATOMIC_OP_ALIAS(atomic_add_32_nv,_atomic_add_32_nv)
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ATOMIC_OP_ALIAS(atomic_add_int_nv,_atomic_add_32_nv)
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STRONG_ALIAS(_atomic_add_int_nv,_atomic_add_32_nv)
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ATOMIC_OP_ALIAS(atomic_add_long_nv,_atomic_add_32_nv)
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STRONG_ALIAS(_atomic_add_long_nv,_atomic_add_32_nv)
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ATOMIC_OP_ALIAS(atomic_add_ptr_nv,_atomic_add_32_nv)
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STRONG_ALIAS(_atomic_add_ptr_nv,_atomic_add_32_nv)
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CRT_ALIAS(__sync_add_and_fetch_4,_atomic_add_32_nv)
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ENTRY(__sync_fetch_and_add_4)
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movl 4(%sp), %a0
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1: movl (%a0), %d0
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movl %d0, %d1
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addl 8(%sp), %d1
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casl %d0, %d1, (%a0)
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bne 1b
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movl %d0, %a0 /* pointers return also in %a0 */
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rts
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END(__sync_fetch_and_add_4)
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ENTRY(_atomic_add_16_nv)
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movl 4(%sp), %a0
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1: movw (%a0), %d0
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movw %d0, %d1
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addw 8(%sp), %d0
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casw %d1, %d0, (%a0)
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bne 1b
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rts
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END(_atomic_add_16_nv)
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CRT_ALIAS(__sync_add_and_fetch_2,_atomic_add_16_nv)
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ENTRY(__sync_fetch_and_add_2)
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movl 4(%sp), %a0
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1: movw (%a0), %d0
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movw %d0, %d1
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addw 8(%sp), %d1
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casw %d0, %d1, (%a0)
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bne 1b
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rts
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END(__sync_fetch_and_add_2)
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ENTRY(_atomic_add_8_nv)
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movl 4(%sp), %a0
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1: movb (%a0), %d0
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movb %d0, %d1
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addb 8(%sp), %d0
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casb %d1, %d0, (%a0)
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bne 1b
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rts
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END(_atomic_add_8_nv)
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CRT_ALIAS(__sync_add_and_fetch_1,_atomic_add_8_nv)
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ENTRY(__sync_fetch_and_add_1)
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movl 4(%sp), %a0
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1: movb (%a0), %d0
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movb %d0, %d1
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addb 8(%sp), %d1
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casb %d0, %d1, (%a0)
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bne 1b
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rts
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END(__sync_fetch_and_add_1)
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CRT_ALIAS(__atomic_fetch_add_1,__sync_fetch_and_add_1)
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CRT_ALIAS(__atomic_fetch_add_2,__sync_fetch_and_add_2)
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CRT_ALIAS(__atomic_fetch_add_4,__sync_fetch_and_add_4)
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