unwind_arm_ehabi_stub.c revision 1.3 
1/*	$NetBSD: unwind_arm_ehabi_stub.c,v 1.3 2023/08/23 12:24:59 rin Exp $	*/
2
3/*-
4 * Copyright (c) 2013 The NetBSD Foundation, Inc.
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 *
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#ifndef __ARM_DWARF_EH__
30#include <sys/cdefs.h>
31#include <sys/types.h>
32#include "unwind.h"
33
34void _Unwind_VRS_Get(struct _Unwind_Context *, int, _Unwind_Word, int, void *);
35void _Unwind_VRS_Set(struct _Unwind_Context *, int, _Unwind_Word, int, void *);
36
37_Unwind_Word
38_Unwind_GetGR(struct _Unwind_Context *context, int regno)
39{
40	_Unwind_Word val;
41	_Unwind_VRS_Get(context, 0 /*_UVRSC_CORE*/, regno, 0 /*_UVRSD_UINT32*/,
42	    &val);
43
44	return val;
45}
46
47_Unwind_Ptr
48_Unwind_GetIP(struct _Unwind_Context *context)
49{
50	return (_Unwind_Ptr)(_Unwind_GetGR (context, 15) & ~(_Unwind_Word)1);
51}
52
53_Unwind_Ptr
54_Unwind_GetIPInfo(struct _Unwind_Context *context, int *p)
55{
56	*p = 0;
57	return _Unwind_GetIP(context);
58}
59
60void
61_Unwind_SetGR(struct _Unwind_Context *context, int reg, _Unwind_Ptr val)
62{
63	_Unwind_VRS_Set(context, 0 /*_UVRSC_CORE*/, reg, 0 /*_UVRSD_UINT32*/,
64		&val);
65}
66
67#endif /* __ARM_DWARF_EH__ */
68