unwind-compat.c revision 146895 
1/* Backward compatibility unwind routines.
2   Copyright (C) 2004
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, 59 Temple Place - Suite 330, Boston, MA
29   02111-1307, USA.  */
30
31#if defined (USE_GAS_SYMVER) && defined (USE_LIBUNWIND_EXCEPTIONS)
32#include "unwind.h"
33#include "unwind-dw2-fde.h"
34#include "unwind-compat.h"
35
36extern _Unwind_Reason_Code __libunwind_Unwind_Backtrace
37  (_Unwind_Trace_Fn, void *);
38
39_Unwind_Reason_Code
40_Unwind_Backtrace (_Unwind_Trace_Fn trace, void *trace_argument)
41{
42  return __libunwind_Unwind_Backtrace (trace, trace_argument);
43}
44symver (_Unwind_Backtrace, GCC_3.3);
45
46extern void __libunwind_Unwind_DeleteException
47  (struct _Unwind_Exception *);
48
49void
50_Unwind_DeleteException (struct _Unwind_Exception *exc)
51{
52  return __libunwind_Unwind_DeleteException (exc);
53}
54symver (_Unwind_DeleteException, GCC_3.0);
55
56extern void * __libunwind_Unwind_FindEnclosingFunction (void *);
57
58void *
59_Unwind_FindEnclosingFunction (void *pc)
60{
61  return __libunwind_Unwind_FindEnclosingFunction (pc);
62}
63symver (_Unwind_FindEnclosingFunction, GCC_3.3);
64
65extern _Unwind_Reason_Code __libunwind_Unwind_ForcedUnwind
66  (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
67
68_Unwind_Reason_Code
69_Unwind_ForcedUnwind (struct _Unwind_Exception *exc,
70		      _Unwind_Stop_Fn stop, void * stop_argument)
71{
72  return __libunwind_Unwind_ForcedUnwind (exc, stop, stop_argument);
73}
74symver (_Unwind_ForcedUnwind, GCC_3.0);
75
76extern _Unwind_Word __libunwind_Unwind_GetCFA
77  (struct _Unwind_Context *);
78
79_Unwind_Word
80_Unwind_GetCFA (struct _Unwind_Context *context)
81{
82  return __libunwind_Unwind_GetCFA (context);
83}
84symver (_Unwind_GetCFA, GCC_3.3);
85
86#ifdef __ia64__
87extern _Unwind_Word __libunwind_Unwind_GetBSP
88  (struct _Unwind_Context *);
89
90_Unwind_Word
91_Unwind_GetBSP (struct _Unwind_Context * context)
92{
93  return __libunwind_Unwind_GetBSP (context);
94}
95symver (_Unwind_GetBSP, GCC_3.3.2);
96#else
97extern _Unwind_Ptr __libunwind_Unwind_GetDataRelBase
98  (struct _Unwind_Context *);
99
100_Unwind_Ptr
101_Unwind_GetDataRelBase (struct _Unwind_Context *context)
102{
103  return __libunwind_Unwind_GetDataRelBase (context);
104}
105symver (_Unwind_GetDataRelBase, GCC_3.0);
106
107extern _Unwind_Ptr __libunwind_Unwind_GetTextRelBase
108  (struct _Unwind_Context *);
109
110_Unwind_Ptr
111_Unwind_GetTextRelBase (struct _Unwind_Context *context)
112{
113  return __libunwind_Unwind_GetTextRelBase (context);
114}
115symver (_Unwind_GetTextRelBase, GCC_3.0);
116#endif
117
118extern _Unwind_Word __libunwind_Unwind_GetGR
119  (struct _Unwind_Context *, int );
120
121_Unwind_Word
122_Unwind_GetGR (struct _Unwind_Context *context, int index)
123{
124  return __libunwind_Unwind_GetGR (context, index);
125}
126symver (_Unwind_GetGR, GCC_3.0);
127
128extern _Unwind_Ptr __libunwind_Unwind_GetIP (struct _Unwind_Context *);
129
130_Unwind_Ptr
131_Unwind_GetIP (struct _Unwind_Context *context)
132{
133  return __libunwind_Unwind_GetIP (context);
134}
135symver (_Unwind_GetIP, GCC_3.0);
136
137extern void *__libunwind_Unwind_GetLanguageSpecificData
138  (struct _Unwind_Context *);
139
140void *
141_Unwind_GetLanguageSpecificData (struct _Unwind_Context *context)
142{
143  return __libunwind_Unwind_GetLanguageSpecificData (context);
144}
145symver (_Unwind_GetLanguageSpecificData, GCC_3.0);
146
147extern _Unwind_Ptr __libunwind_Unwind_GetRegionStart
148  (struct _Unwind_Context *);
149
150_Unwind_Ptr
151_Unwind_GetRegionStart (struct _Unwind_Context *context)
152{
153  return __libunwind_Unwind_GetRegionStart (context);
154}
155symver (_Unwind_GetRegionStart, GCC_3.0);
156
157extern _Unwind_Reason_Code __libunwind_Unwind_RaiseException
158  (struct _Unwind_Exception *);
159
160_Unwind_Reason_Code
161_Unwind_RaiseException(struct _Unwind_Exception *exc)
162{
163  return __libunwind_Unwind_RaiseException (exc);
164}
165symver (_Unwind_RaiseException, GCC_3.0);
166
167extern void __libunwind_Unwind_Resume (struct _Unwind_Exception *);
168
169void
170_Unwind_Resume (struct _Unwind_Exception *exc)
171{
172  __libunwind_Unwind_Resume (exc);
173}
174symver (_Unwind_Resume, GCC_3.0);
175
176extern _Unwind_Reason_Code __libunwind_Unwind_Resume_or_Rethrow
177   (struct _Unwind_Exception *);
178
179_Unwind_Reason_Code
180_Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc)
181{
182  return __libunwind_Unwind_Resume_or_Rethrow (exc);
183}
184symver (_Unwind_Resume_or_Rethrow, GCC_3.3);
185
186extern void __libunwind_Unwind_SetGR
187  (struct _Unwind_Context *, int, _Unwind_Word);
188
189void
190_Unwind_SetGR (struct _Unwind_Context *context, int index,
191	       _Unwind_Word val)
192{
193  __libunwind_Unwind_SetGR (context, index, val);
194}
195symver (_Unwind_SetGR, GCC_3.0);
196
197extern void __libunwind_Unwind_SetIP
198  (struct _Unwind_Context *, _Unwind_Ptr);
199
200void
201_Unwind_SetIP (struct _Unwind_Context *context, _Unwind_Ptr val)
202{
203  return __libunwind_Unwind_SetIP (context, val);
204}
205symver (_Unwind_SetIP, GCC_3.0);
206#endif
207