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 /*
  23  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 #ident  "%Z%%M% %I%     %E% SMI"
  28 
  29 #include <sys/asm_linkage.h>
  30 
  31 #if defined(lint)
  32 
  33 void
  34 _start(void)
  35 {
  36 }
  37 
  38 #else   /* lint */
  39 
  40         /*
  41          * C language startup routine for the lx brand shared library.
  42          */
  43         ENTRY_NP(_start)
  44         pushl   $0                      / Build a stack frame. retpc = NULL
  45         pushl   $0                      / fp = NULL
  46         movl    %esp, %ebp              / first stack frame
  47 
  48         /*
  49          * Calculate the location of the envp array by adding the size of
  50          * the argv array to the start of the argv array.
  51          */
  52         movl    8(%ebp), %eax           / argc in %eax
  53         leal    16(%ebp,%eax,4), %edx   / envp in %edx
  54         andl    $-16, %esp
  55         pushl   %edx                    / push envp
  56         leal    12(%ebp),%edx           / compute &argv[0]
  57         pushl   %edx                    / push argv
  58         pushl   %eax                    / push argc
  59         call    lx_init
  60         /*
  61          * lx_init will never return.
  62          */
  63         SET_SIZE(_start)
  64 
  65 #endif  /* lint */