usr/src/cmd/sgs/rtld/amd64/caller.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 2005 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Return the pc of the calling routine.
  27  */
  28 #pragma ident   "%Z%%M% %I%     %E% SMI"
  29
  30 #if     defined(lint)
  31
  32 #include        <sys/types.h>
  33
  34 caddr_t
  35 caller()
  36 {
  37         return (0);
  38 }
  39
  40 #else
  41
  42 #include        <sys/asm_linkage.h>
  43
  44         .file   "caller.s"
  45
  46         ENTRY(caller)
  47         movq    8(%rbp),%rax
  48         ret
  49         SET_SIZE(caller)
  50 #endif