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 (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25 
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27 
  28 /*
  29  * exit routine from linker/loader to kernel
  30  */
  31 
  32 #include <sys/asm_linkage.h>
  33 #include <sys/reboot.h>
  34 
  35 /*
  36  *  exitto is called from main() and does 1 things
  37  *      It then jumps directly to the just-loaded standalone.
  38  *      There is NO RETURN from exitto().
  39  */
  40 
  41 #if defined(lint)
  42 
  43 /* ARGSUSED */
  44 void
  45 exitto(caddr_t entrypoint)
  46 {}
  47 
  48 #else   /* lint */
  49 
  50 
  51         ENTRY(exitto)
  52 
  53         /preserve destination in temporary register %r11
  54         movq    %rdi, %r11
  55 
  56         /holds address of array of pointers to functions
  57         / $arg1
  58         movq    $romp, %rax
  59         movq    (%rax), %rdi
  60 
  61         /holds address of bootops structure
  62         / $arg2
  63         movq    $ops, %rax
  64         movq    (%rax), %rdx
  65 
  66         / Call destination
  67         call   *%r11
  68 
  69         SET_SIZE(exitto)
  70 
  71 #endif
  72