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
34 void _Unwind_VRS_Get(struct _Unwind_Context *, int, _Unwind_Word, int, void *);
35 void _Unwind_VRS_Set(struct _Unwind_Context *, int, _Unwind_Word, int, void *);
36
37 _Unwind_Word
_Unwind_GetGR(struct _Unwind_Context * context,int regno)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
_Unwind_GetIP(struct _Unwind_Context * context)48 _Unwind_GetIP(struct _Unwind_Context *context)
49 {
50 return (_Unwind_Ptr)(_Unwind_GetGR (context, 15) & ~(_Unwind_Word)1);
51 }
52
53 _Unwind_Ptr
_Unwind_GetIPInfo(struct _Unwind_Context * context,int * p)54 _Unwind_GetIPInfo(struct _Unwind_Context *context, int *p)
55 {
56 *p = 0;
57 return _Unwind_GetIP(context);
58 }
59
60 void
_Unwind_SetGR(struct _Unwind_Context * context,int reg,_Unwind_Ptr val)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