1 /* $OpenBSD: process.sh.S,v 1.5 2006/11/17 20:54:47 deraadt Exp $ */
4 * Copyright (c) 2006 Theo de Raadt
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
25 * POSSIBILITY OF SUCH DAMAGE.
32 #include <machine/asm.h>
35 # savecontext(f, area1, newsp)
36 # int (*f)(); struct savearea *area1; char *newsp;
42 mov.l .L_PRE_Block, r0 /* PRE_Block = 1 */
46 /* sp == r15 - automatically handled */
56 #if defined(__SH4__) && !defined(__SH4_NOFPU__)
57 /* float point registers */
64 mov.l sp,@r5 /* store top of stack */
68 mov r6,sp /* swap to new sp */
69 mov sp, r14 /* frame pointer */
75 .L_PRE_Block: .long _C_LABEL(PRE_Block)
76 SET_ENTRY_SIZE(savecontext)
79 * returnto(struct savearea *r4)
84 #if defined(__SH4__) && !defined(__SH4_NOFPU__)
85 /* float point registers */
100 /* sp == r15 - automatically handled */
102 mov.l .L_PRE_Block2, r0 /* PRE_Block = 0 */
110 .L_PRE_Block2: .long _C_LABEL(PRE_Block)
111 SET_ENTRY_SIZE(returnto)