1/* Backward compatibility unwind routines.
2   Copyright (C) 2004, 2005, 2006
3   Free Software Foundation, Inc.
4
5   This file is part of GCC.
6
7   GCC is free software; you can redistribute it and/or modify it
8   under the terms of the GNU General Public License as published by
9   the Free Software Foundation; either version 2, or (at your option)
10   any later version.
11
12   In addition to the permissions in the GNU General Public License, the
13   Free Software Foundation gives you unlimited permission to link the
14   compiled version of this file into combinations with other programs,
15   and to distribute those combinations without any restriction coming
16   from the use of this file.  (The General Public License restrictions
17   do apply in other respects; for example, they cover modification of
18   the file, and distribution when not linked into a combined
19   executable.)
20
21   GCC is distributed in the hope that it will be useful, but WITHOUT
22   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
23   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
24   License for more details.
25
26   You should have received a copy of the GNU General Public License
27   along with GCC; see the file COPYING.  If not, write to the Free
28   Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
29   02110-1301, USA.  */
30
31#if defined (USE_GAS_SYMVER) && defined (USE_LIBUNWIND_EXCEPTIONS)
32#include "tconfig.h"
33#include "tsystem.h"
34#include "unwind.h"
35#include "unwind-dw2-fde.h"
36#include "unwind-compat.h"
37
38extern _Unwind_Reason_Code __libunwind_Unwind_Backtrace
39  (_Unwind_Trace_Fn, void *);
40
41_Unwind_Reason_Code
42_Unwind_Backtrace (_Unwind_Trace_Fn trace, void *trace_argument)
43{
44  return __libunwind_Unwind_Backtrace (trace, trace_argument);
45}
46symver (_Unwind_Backtrace, GCC_3.3);
47
48extern void __libunwind_Unwind_DeleteException
49  (struct _Unwind_Exception *);
50
51void
52_Unwind_DeleteException (struct _Unwind_Exception *exc)
53{
54  return __libunwind_Unwind_DeleteException (exc);
55}
56symver (_Unwind_DeleteException, GCC_3.0);
57
58extern void * __libunwind_Unwind_FindEnclosingFunction (void *);
59
60void *
61_Unwind_FindEnclosingFunction (void *pc)
62{
63  return __libunwind_Unwind_FindEnclosingFunction (pc);
64}
65symver (_Unwind_FindEnclosingFunction, GCC_3.3);
66
67extern _Unwind_Reason_Code __libunwind_Unwind_ForcedUnwind
68  (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
69
70_Unwind_Reason_Code
71_Unwind_ForcedUnwind (struct _Unwind_Exception *exc,
72		      _Unwind_Stop_Fn stop, void * stop_argument)
73{
74  return __libunwind_Unwind_ForcedUnwind (exc, stop, stop_argument);
75}
76symver (_Unwind_ForcedUnwind, GCC_3.0);
77
78extern _Unwind_Word __libunwind_Unwind_GetCFA
79  (struct _Unwind_Context *);
80
81_Unwind_Word
82_Unwind_GetCFA (struct _Unwind_Context *context)
83{
84  return __libunwind_Unwind_GetCFA (context);
85}
86symver (_Unwind_GetCFA, GCC_3.3);
87
88#ifdef __ia64__
89extern _Unwind_Word __libunwind_Unwind_GetBSP
90  (struct _Unwind_Context *);
91
92_Unwind_Word
93_Unwind_GetBSP (struct _Unwind_Context * context)
94{
95  return __libunwind_Unwind_GetBSP (context);
96}
97symver (_Unwind_GetBSP, GCC_3.3.2);
98#else
99extern _Unwind_Ptr __libunwind_Unwind_GetDataRelBase
100  (struct _Unwind_Context *);
101
102_Unwind_Ptr
103_Unwind_GetDataRelBase (struct _Unwind_Context *context)
104{
105  return __libunwind_Unwind_GetDataRelBase (context);
106}
107symver (_Unwind_GetDataRelBase, GCC_3.0);
108
109extern _Unwind_Ptr __libunwind_Unwind_GetTextRelBase
110  (struct _Unwind_Context *);
111
112_Unwind_Ptr
113_Unwind_GetTextRelBase (struct _Unwind_Context *context)
114{
115  return __libunwind_Unwind_GetTextRelBase (context);
116}
117symver (_Unwind_GetTextRelBase, GCC_3.0);
118#endif
119
120extern _Unwind_Word __libunwind_Unwind_GetGR
121  (struct _Unwind_Context *, int );
122
123_Unwind_Word
124_Unwind_GetGR (struct _Unwind_Context *context, int index)
125{
126  return __libunwind_Unwind_GetGR (context, index);
127}
128symver (_Unwind_GetGR, GCC_3.0);
129
130extern _Unwind_Ptr __libunwind_Unwind_GetIP (struct _Unwind_Context *);
131
132_Unwind_Ptr
133_Unwind_GetIP (struct _Unwind_Context *context)
134{
135  return __libunwind_Unwind_GetIP (context);
136}
137symver (_Unwind_GetIP, GCC_3.0);
138
139_Unwind_Ptr
140_Unwind_GetIPInfo (struct _Unwind_Context *context, int *ip_before_insn)
141{
142  *ip_before_insn = 0;
143  return __libunwind_Unwind_GetIP (context);
144}
145
146extern void *__libunwind_Unwind_GetLanguageSpecificData
147  (struct _Unwind_Context *);
148
149void *
150_Unwind_GetLanguageSpecificData (struct _Unwind_Context *context)
151{
152  return __libunwind_Unwind_GetLanguageSpecificData (context);
153}
154symver (_Unwind_GetLanguageSpecificData, GCC_3.0);
155
156extern _Unwind_Ptr __libunwind_Unwind_GetRegionStart
157  (struct _Unwind_Context *);
158
159_Unwind_Ptr
160_Unwind_GetRegionStart (struct _Unwind_Context *context)
161{
162  return __libunwind_Unwind_GetRegionStart (context);
163}
164symver (_Unwind_GetRegionStart, GCC_3.0);
165
166extern _Unwind_Reason_Code __libunwind_Unwind_RaiseException
167  (struct _Unwind_Exception *);
168
169_Unwind_Reason_Code
170_Unwind_RaiseException(struct _Unwind_Exception *exc)
171{
172  return __libunwind_Unwind_RaiseException (exc);
173}
174symver (_Unwind_RaiseException, GCC_3.0);
175
176extern void __libunwind_Unwind_Resume (struct _Unwind_Exception *);
177
178void
179_Unwind_Resume (struct _Unwind_Exception *exc)
180{
181  __libunwind_Unwind_Resume (exc);
182}
183symver (_Unwind_Resume, GCC_3.0);
184
185extern _Unwind_Reason_Code __libunwind_Unwind_Resume_or_Rethrow
186   (struct _Unwind_Exception *);
187
188_Unwind_Reason_Code
189_Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc)
190{
191  return __libunwind_Unwind_Resume_or_Rethrow (exc);
192}
193symver (_Unwind_Resume_or_Rethrow, GCC_3.3);
194
195extern void __libunwind_Unwind_SetGR
196  (struct _Unwind_Context *, int, _Unwind_Word);
197
198void
199_Unwind_SetGR (struct _Unwind_Context *context, int index,
200	       _Unwind_Word val)
201{
202  __libunwind_Unwind_SetGR (context, index, val);
203}
204symver (_Unwind_SetGR, GCC_3.0);
205
206extern void __libunwind_Unwind_SetIP
207  (struct _Unwind_Context *, _Unwind_Ptr);
208
209void
210_Unwind_SetIP (struct _Unwind_Context *context, _Unwind_Ptr val)
211{
212  return __libunwind_Unwind_SetIP (context, val);
213}
214symver (_Unwind_SetIP, GCC_3.0);
215#endif
216