kobj_crt.s revision 7290a1fdd0de982c704efec11c37cdbf4de3868f
5084e753b79a753c8b532c06eb3ad1d025e8e472Mark J. Nelson/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* exit routine from linker/loader to kernel
*/
#include <sys/asm_linkage.h>
#include <sys/reboot.h>
#include <sys/trap.h>
/*
* exitto is called from main() and does 1 things
* It then jumps directly to the just-loaded standalone.
* There is NO RETURN from exitto(). ????
*/
#if defined(lint)
/* ARGSUSED */
void
exitto(caddr_t entrypoint)
{}
#else /* lint */
.data
save_esp2:
.long 0
ENTRY(exitto)
push %ebp / save stack
mov %esp,%ebp
pushal / protect secondary boot
movl %esp, %eax
movl %eax, save_esp2
movl boothowto, %eax
andl $RB_DEBUGENTER, %eax
jz 1f
/* enter the debugger */
int $T_DBGENTR
1:
/holds address of array of pointers to functions
movl $romp, %eax
movl (%eax), %ecx
/holds address of bootops structure
movl $ops, %eax
movl (%eax), %ebx
movl 8(%ebp), %eax
call *%eax
movl save_esp2, %eax
movl %eax, %esp
popal
pop %ebp / restore frame pointer
ret
SET_SIZE(exitto)
#endif