usr/src/lib/libtnfprobe/sparc_locks.s

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 #pragma ident   "%Z%%M% %I%     %E% SMI"
  23 /*
  24  *      Copyright (c) 1994, by Sun Microsytems, Inc.
  25  */
  26
  27 #include <sys/asm_linkage.h>
  28
  29         .file           __FILE__
  30 /*
  31  * int tnfw_b_get_lock(tnf_byte_lock_t *);
  32  */
  33         ENTRY(tnfw_b_get_lock)
  34         ldstub  [%o0], %o1
  35         jmpl    %o7+8, %g0
  36         mov     %o1, %o0
  37         SET_SIZE(tnfw_b_get_lock)
  38
  39 /*
  40  * void tnfw_b_clear_lock(tnf_byte_lock_t *);
  41  */
  42         ENTRY(tnfw_b_clear_lock)
  43         jmpl    %o7+8, %g0
  44         stb     %g0, [%o0]
  45         SET_SIZE(tnfw_b_clear_lock)
  46
  47 /*
  48  * u_long tnfw_b_atomic_swap(u_long *, u_long);
  49  */
  50         ENTRY(tnfw_b_atomic_swap)
  51         swap    [%o0], %o1
  52         jmpl    %o7+8, %g0
  53         mov     %o1, %o0
  54         SET_SIZE(tnfw_b_atomic_swap)