obp_srt0.s revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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 (c) 1986-1994, by Sun Microsystems, Inc.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* simple standalone startup code
*/
#include <sys/asm_linkage.h>
#if defined(lint)
#include "cbootblk.h"
/*ARGSUSED*/
void
start(void *romp)
{}
#else /* lint */
ENTRY(start)
.global end
.global edata
.global main
!
! OBP gives us control right here ..
!
! On entry, %o0 contains the romp.
!
sethi %hi(start), %o1 ! Top of stack
or %o1, %lo(start), %o1
save %o1, -SA(MINFRAME), %sp
!
! zero the bss
!
sethi %hi(edata), %o0 ! Beginning of bss
or %o0, %lo(edata), %o0
sethi %hi(end), %o2 ! End of the whole wad
or %o2, %lo(end), %o2
call bzero
sub %o2, %o0, %o1 ! end - edata = size of bss
call main
mov %i0, %o0 ! romvec pointer
call exit
mov 0, %o0
ret ! ret to prom
restore
SET_SIZE(start)
#endif /* lint */