1/*        $NetBSD: compat___sigtramp2.S,v 1.3 2011/01/29 22:58:47 matt Exp $    */
2
3/*
4 * Copyright (c) 2002 Anders Magnusson, (ragge@NetBSD.org).
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 3. The name of the author may not be used to endorse or promote products
16 *    derived from this software without specific prior written permission
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/*
31 * Signal trampoline; registers when called:
32 *        sp, pc, psl - obvious
33 *        ap - points to argument list, see machdep.c:sendsig()
34 *        fp - address of signal handler
35 */
36
37#include "SYS.h"
38
39#ifdef SYSLIBC_SCCS
40RCSID("$NetBSD: compat___sigtramp2.S,v 1.3 2011/01/29 22:58:47 matt Exp $")
41#endif
42
43          .text
44          _ALIGN_TEXT
45
46          .globl    _C_LABEL(__sigtramp_sigcontext_2)
47_C_LABEL(__sigtramp_sigcontext_2):
48          nop; nop;
49          pushr $(R0|R1|R2|R3|R4|R5)    # save scratch registers
50          callg (%ap),(%fp)             # use global arg list
51          popr $(R0|R1|R2|R3|R4|R5)     # restore regs
52          movab 8(%ap),%ap              # arg is pointer to sigctx
53          SYSTRAP(compat_16___sigreturn14) # exit from here
54          halt                                    # illegal insn
55END(__sigtramp_sigcontext_2)
56