[BACK]Return to atomic_cas.S CVS log [TXT][DIR] Up to [cvs.NetBSD.org] / src / common / lib / libc / arch / powerpc / atomic

Annotation of src/common/lib/libc/arch/powerpc/atomic/atomic_cas.S, Revision 1.2.4.3

1.2.4.3 ! matt        1: /*     atomic_cas.S,v 1.2.4.2 2008/01/09 01:21:00 matt Exp     */
1.2.4.2   matt        2:
                      3: /*-
1.2.4.3 ! matt        4:  * Copyright (c) 2007, 2008 The NetBSD Foundation, Inc.
1.2.4.2   matt        5:  * All rights reserved.
                      6:  *
                      7:  * This code is derived from software contributed to The NetBSD Foundation
                      8:  * by Jason R. Thorpe.
                      9:  *
                     10:  * Redistribution and use in source and binary forms, with or without
                     11:  * modification, are permitted provided that the following conditions
                     12:  * are met:
                     13:  * 1. Redistributions of source code must retain the above copyright
                     14:  *    notice, this list of conditions and the following disclaimer.
                     15:  * 2. Redistributions in binary form must reproduce the above copyright
                     16:  *    notice, this list of conditions and the following disclaimer in the
                     17:  *    documentation and/or other materials provided with the distribution.
                     18:  * 3. All advertising materials mentioning features or use of this software
                     19:  *    must display the following acknowledgement:
                     20:  *     This product includes software developed by the NetBSD
                     21:  *     Foundation, Inc. and its contributors.
                     22:  * 4. Neither the name of The NetBSD Foundation nor the names of its
                     23:  *    contributors may be used to endorse or promote products derived
                     24:  *    from this software without specific prior written permission.
                     25:  *
                     26:  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     27:  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     28:  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
                     29:  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
                     30:  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
                     31:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
                     32:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
                     33:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
                     34:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
                     35:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
                     36:  * POSSIBILITY OF SUCH DAMAGE.
                     37:  */
                     38:
                     39: #include "atomic_op_asm.h"
                     40:
                     41:        .text
                     42:
                     43: ENTRY_NOPROFILE(_atomic_cas_32)
1.2.4.3 ! matt       44: 1:     lwarx   %r10,0,%r3
        !            45:        cmpw    %r10,%r4
1.2.4.2   matt       46:        bne-    2f
1.2.4.3 ! matt       47:        stwcx.  %r5,0,%r3
1.2.4.2   matt       48:        bne-    1b
1.2.4.3 ! matt       49: 2:     mr      %r3,%r10
1.2.4.2   matt       50:        blr
1.2.4.3 ! matt       51:
1.2.4.2   matt       52: ATOMIC_OP_ALIAS(atomic_cas_32,_atomic_cas_32)
                     53: ATOMIC_OP_ALIAS(atomic_cas_uint,_atomic_cas_32)
                     54: STRONG_ALIAS(_atomic_cas_uint,_atomic_cas_32)
                     55: #if !defined(_LP64)
                     56: ATOMIC_OP_ALIAS(atomic_cas_ulong,_atomic_cas_32)
                     57: STRONG_ALIAS(_atomic_cas_ulong,_atomic_cas_32)
                     58: ATOMIC_OP_ALIAS(atomic_cas_ptr,_atomic_cas_32)
                     59: STRONG_ALIAS(_atomic_cas_ptr,_atomic_cas_32)
                     60: #endif
1.2.4.3 ! matt       61:
        !            62: ATOMIC_OP_ALIAS(atomic_cas_32_ni,_atomic_cas_32)
        !            63: STRONG_ALIAS(_atomic_cas_32_ni,_atomic_cas_32)
        !            64: ATOMIC_OP_ALIAS(atomic_cas_uint_ni,_atomic_cas_32)
        !            65: STRONG_ALIAS(_atomic_cas_uint_ni,_atomic_cas_32)
        !            66: #if !defined(_LP64)
        !            67: ATOMIC_OP_ALIAS(atomic_cas_ulong_ni,_atomic_cas_32)
        !            68: STRONG_ALIAS(_atomic_cas_ulong_ni,_atomic_cas_32)
        !            69: ATOMIC_OP_ALIAS(atomic_cas_ptr_ni,_atomic_cas_32)
        !            70: STRONG_ALIAS(_atomic_cas_ptr_ni,_atomic_cas_32)
        !            71: #endif

CVSweb <webmaster@jp.NetBSD.org>