gcc/unwind-compat.c

   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
  38 extern _Unwind_Reason_Code __libunwind_Unwind_Backtrace
  39   (_Unwind_Trace_Fn, void *);
  40
  41 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
  42 _Unwind_Backtrace (_Unwind_Trace_Fn trace, void *trace_argument)
  43 {
  44   return __libunwind_Unwind_Backtrace (trace, trace_argument);
  45 }
  46 symver (_Unwind_Backtrace, GCC_3.3);
  47
  48 extern void __libunwind_Unwind_DeleteException
  49   (struct _Unwind_Exception *);
  50
  51 void
  52 _Unwind_DeleteException (struct _Unwind_Exception *exc)
  53 {
  54   return __libunwind_Unwind_DeleteException (exc);
  55 }
  56 symver (_Unwind_DeleteException, GCC_3.0);
  57
  58 extern void * __libunwind_Unwind_FindEnclosingFunction (void *);
  59
  60 void *
  61 _Unwind_FindEnclosingFunction (void *pc)
  62 {
  63   return __libunwind_Unwind_FindEnclosingFunction (pc);
  64 }
  65 symver (_Unwind_FindEnclosingFunction, GCC_3.3);
  66
  67 extern _Unwind_Reason_Code __libunwind_Unwind_ForcedUnwind
  68   (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
  69
  70 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
  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 }
  76 symver (_Unwind_ForcedUnwind, GCC_3.0);
  77
  78 extern _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 }
  86 symver (_Unwind_GetCFA, GCC_3.3);
  87
  88 #ifdef __ia64__
  89 extern _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 }
  97 symver (_Unwind_GetBSP, GCC_3.3.2);
  98 #else
  99 extern _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 }
 107 symver (_Unwind_GetDataRelBase, GCC_3.0);
 108
 109 extern _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 }
 117 symver (_Unwind_GetTextRelBase, GCC_3.0);
 118 #endif
 119
 120 extern _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 }
 128 symver (_Unwind_GetGR, GCC_3.0);
 129
 130 extern _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 }
 137 symver (_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
 146 extern void *__libunwind_Unwind_GetLanguageSpecificData
 147   (struct _Unwind_Context *);
 148
 149 void *
 150 _Unwind_GetLanguageSpecificData (struct _Unwind_Context *context)
 151 {
 152   return __libunwind_Unwind_GetLanguageSpecificData (context);
 153 }
 154 symver (_Unwind_GetLanguageSpecificData, GCC_3.0);
 155
 156 extern _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 }
 164 symver (_Unwind_GetRegionStart, GCC_3.0);
 165
 166 extern _Unwind_Reason_Code __libunwind_Unwind_RaiseException
 167   (struct _Unwind_Exception *);
 168
 169 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
 170 _Unwind_RaiseException(struct _Unwind_Exception *exc)
 171 {
 172   return __libunwind_Unwind_RaiseException (exc);
 173 }
 174 symver (_Unwind_RaiseException, GCC_3.0);
 175
 176 extern void __libunwind_Unwind_Resume (struct _Unwind_Exception *);
 177
 178 void LIBGCC2_UNWIND_ATTRIBUTE
 179 _Unwind_Resume (struct _Unwind_Exception *exc)
 180 {
 181   __libunwind_Unwind_Resume (exc);
 182 }
 183 symver (_Unwind_Resume, GCC_3.0);
 184
 185 extern _Unwind_Reason_Code __libunwind_Unwind_Resume_or_Rethrow
 186    (struct _Unwind_Exception *);
 187
 188 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
 189 _Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc)
 190 {
 191   return __libunwind_Unwind_Resume_or_Rethrow (exc);
 192 }
 193 symver (_Unwind_Resume_or_Rethrow, GCC_3.3);
 194
 195 extern void __libunwind_Unwind_SetGR
 196   (struct _Unwind_Context *, int, _Unwind_Word);
 197
 198 void
 199 _Unwind_SetGR (struct _Unwind_Context *context, int index,
 200                _Unwind_Word val)
 201 {
 202   __libunwind_Unwind_SetGR (context, index, val);
 203 }
 204 symver (_Unwind_SetGR, GCC_3.0);
 205
 206 extern void __libunwind_Unwind_SetIP
 207   (struct _Unwind_Context *, _Unwind_Ptr);
 208
 209 void
 210 _Unwind_SetIP (struct _Unwind_Context *context, _Unwind_Ptr val)
 211 {
 212   return __libunwind_Unwind_SetIP (context, val);
 213 }
 214 symver (_Unwind_SetIP, GCC_3.0);
 215 #endif