usr/src/lib/libumem/sparc/asm_subr.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 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 #include <sys/asm_linkage.h>
  30
  31 #if defined(lint)
  32
  33 void *
  34 getfp(void)
  35 {
  36         return (NULL);
  37 }
  38
  39 void
  40 flush_windows(void)
  41 {
  42
  43 }
  44
  45 #ifndef UMEM_STANDALONE
  46 void
  47 _breakpoint(void)
  48 {
  49         return;
  50 }
  51 #endif
  52
  53 #else   /* lint */
  54
  55         ENTRY(getfp)
  56         retl
  57         mov     %fp, %o0
  58         SET_SIZE(getfp)
  59
  60 #ifdef UMEM_STANDALONE
  61 #ifdef __sparcv9
  62
  63         /*
  64          * The caller doesn't need the top window to be flushed, so this
  65          * is sufficient.
  66          */
  67         ENTRY(flush_windows)
  68         retl
  69         flushw
  70         SET_SIZE(flush_windows)
  71
  72 #else   /* !__sparcv9 */
  73 #error  "This file does not provide a pre-v9 standalone flush_windows"
  74 #endif  /* __sparcv9 */
  75
  76 #else   /* !UMEM_STANDALONE */
  77
  78         ENTRY(flush_windows)
  79         retl
  80         ta      0x3
  81         SET_SIZE(flush_windows)
  82
  83 #endif  /* UMEM_STANDALONE */
  84
  85 #ifndef UMEM_STANDALONE
  86         ENTRY(_breakpoint)
  87         retl
  88         ta      0x1
  89         SET_SIZE(_breakpoint)
  90 #endif
  91
  92 #endif  /* lint */