gcc/unwind-compat.c

   1 /* Backward compatibility unwind routines.
   2    Copyright (C) 2004, 2005, 2006, 2009
   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 3, or (at your option)
  10    any later version.
  11
  12    GCC is distributed in the hope that it will be useful, but WITHOUT
  13    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  14    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  15    License for more details.
  16
  17    Under Section 7 of GPL version 3, you are granted additional
  18    permissions described in the GCC Runtime Library Exception, version
  19    3.1, as published by the Free Software Foundation.
  20
  21    You should have received a copy of the GNU General Public License and
  22    a copy of the GCC Runtime Library Exception along with this program;
  23    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  24    <http://www.gnu.org/licenses/>.  */
  25
  26 #if defined (USE_GAS_SYMVER) && defined (USE_LIBUNWIND_EXCEPTIONS)
  27 #include "tconfig.h"
  28 #include "tsystem.h"
  29 #include "unwind.h"
  30 #include "unwind-dw2-fde.h"
  31 #include "unwind-compat.h"
  32
  33 extern _Unwind_Reason_Code __libunwind_Unwind_Backtrace
  34   (_Unwind_Trace_Fn, void *);
  35
  36 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
  37 _Unwind_Backtrace (_Unwind_Trace_Fn trace, void *trace_argument)
  38 {
  39   return __libunwind_Unwind_Backtrace (trace, trace_argument);
  40 }
  41 symver (_Unwind_Backtrace, GCC_3.3);
  42
  43 extern void __libunwind_Unwind_DeleteException
  44   (struct _Unwind_Exception *);
  45
  46 void
  47 _Unwind_DeleteException (struct _Unwind_Exception *exc)
  48 {
  49   return __libunwind_Unwind_DeleteException (exc);
  50 }
  51 symver (_Unwind_DeleteException, GCC_3.0);
  52
  53 extern void * __libunwind_Unwind_FindEnclosingFunction (void *);
  54
  55 void *
  56 _Unwind_FindEnclosingFunction (void *pc)
  57 {
  58   return __libunwind_Unwind_FindEnclosingFunction (pc);
  59 }
  60 symver (_Unwind_FindEnclosingFunction, GCC_3.3);
  61
  62 extern _Unwind_Reason_Code __libunwind_Unwind_ForcedUnwind
  63   (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
  64
  65 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
  66 _Unwind_ForcedUnwind (struct _Unwind_Exception *exc,
  67                       _Unwind_Stop_Fn stop, void * stop_argument)
  68 {
  69   return __libunwind_Unwind_ForcedUnwind (exc, stop, stop_argument);
  70 }
  71 symver (_Unwind_ForcedUnwind, GCC_3.0);
  72
  73 extern _Unwind_Word __libunwind_Unwind_GetCFA
  74   (struct _Unwind_Context *);
  75
  76 _Unwind_Word
  77 _Unwind_GetCFA (struct _Unwind_Context *context)
  78 {
  79   return __libunwind_Unwind_GetCFA (context);
  80 }
  81 symver (_Unwind_GetCFA, GCC_3.3);
  82
  83 #ifdef __ia64__
  84 extern _Unwind_Word __libunwind_Unwind_GetBSP
  85   (struct _Unwind_Context *);
  86
  87 _Unwind_Word
  88 _Unwind_GetBSP (struct _Unwind_Context * context)
  89 {
  90   return __libunwind_Unwind_GetBSP (context);
  91 }
  92 symver (_Unwind_GetBSP, GCC_3.3.2);
  93 #else
  94 extern _Unwind_Ptr __libunwind_Unwind_GetDataRelBase
  95   (struct _Unwind_Context *);
  96
  97 _Unwind_Ptr
  98 _Unwind_GetDataRelBase (struct _Unwind_Context *context)
  99 {
 100   return __libunwind_Unwind_GetDataRelBase (context);
 101 }
 102 symver (_Unwind_GetDataRelBase, GCC_3.0);
 103
 104 extern _Unwind_Ptr __libunwind_Unwind_GetTextRelBase
 105   (struct _Unwind_Context *);
 106
 107 _Unwind_Ptr
 108 _Unwind_GetTextRelBase (struct _Unwind_Context *context)
 109 {
 110   return __libunwind_Unwind_GetTextRelBase (context);
 111 }
 112 symver (_Unwind_GetTextRelBase, GCC_3.0);
 113 #endif
 114
 115 extern _Unwind_Word __libunwind_Unwind_GetGR
 116   (struct _Unwind_Context *, int );
 117
 118 _Unwind_Word
 119 _Unwind_GetGR (struct _Unwind_Context *context, int index)
 120 {
 121   return __libunwind_Unwind_GetGR (context, index);
 122 }
 123 symver (_Unwind_GetGR, GCC_3.0);
 124
 125 extern _Unwind_Ptr __libunwind_Unwind_GetIP (struct _Unwind_Context *);
 126
 127 _Unwind_Ptr
 128 _Unwind_GetIP (struct _Unwind_Context *context)
 129 {
 130   return __libunwind_Unwind_GetIP (context);
 131 }
 132 symver (_Unwind_GetIP, GCC_3.0);
 133
 134 _Unwind_Ptr
 135 _Unwind_GetIPInfo (struct _Unwind_Context *context, int *ip_before_insn)
 136 {
 137   *ip_before_insn = 0;
 138   return __libunwind_Unwind_GetIP (context);
 139 }
 140
 141 extern void *__libunwind_Unwind_GetLanguageSpecificData
 142   (struct _Unwind_Context *);
 143
 144 void *
 145 _Unwind_GetLanguageSpecificData (struct _Unwind_Context *context)
 146 {
 147   return __libunwind_Unwind_GetLanguageSpecificData (context);
 148 }
 149 symver (_Unwind_GetLanguageSpecificData, GCC_3.0);
 150
 151 extern _Unwind_Ptr __libunwind_Unwind_GetRegionStart
 152   (struct _Unwind_Context *);
 153
 154 _Unwind_Ptr
 155 _Unwind_GetRegionStart (struct _Unwind_Context *context)
 156 {
 157   return __libunwind_Unwind_GetRegionStart (context);
 158 }
 159 symver (_Unwind_GetRegionStart, GCC_3.0);
 160
 161 extern _Unwind_Reason_Code __libunwind_Unwind_RaiseException
 162   (struct _Unwind_Exception *);
 163
 164 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
 165 _Unwind_RaiseException(struct _Unwind_Exception *exc)
 166 {
 167   return __libunwind_Unwind_RaiseException (exc);
 168 }
 169 symver (_Unwind_RaiseException, GCC_3.0);
 170
 171 extern void __libunwind_Unwind_Resume (struct _Unwind_Exception *);
 172
 173 void LIBGCC2_UNWIND_ATTRIBUTE
 174 _Unwind_Resume (struct _Unwind_Exception *exc)
 175 {
 176   __libunwind_Unwind_Resume (exc);
 177 }
 178 symver (_Unwind_Resume, GCC_3.0);
 179
 180 extern _Unwind_Reason_Code __libunwind_Unwind_Resume_or_Rethrow
 181    (struct _Unwind_Exception *);
 182
 183 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
 184 _Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc)
 185 {
 186   return __libunwind_Unwind_Resume_or_Rethrow (exc);
 187 }
 188 symver (_Unwind_Resume_or_Rethrow, GCC_3.3);
 189
 190 extern void __libunwind_Unwind_SetGR
 191   (struct _Unwind_Context *, int, _Unwind_Word);
 192
 193 void
 194 _Unwind_SetGR (struct _Unwind_Context *context, int index,
 195                _Unwind_Word val)
 196 {
 197   __libunwind_Unwind_SetGR (context, index, val);
 198 }
 199 symver (_Unwind_SetGR, GCC_3.0);
 200
 201 extern void __libunwind_Unwind_SetIP
 202   (struct _Unwind_Context *, _Unwind_Ptr);
 203
 204 void
 205 _Unwind_SetIP (struct _Unwind_Context *context, _Unwind_Ptr val)
 206 {
 207   return __libunwind_Unwind_SetIP (context, val);
 208 }
 209 symver (_Unwind_SetIP, GCC_3.0);
 210 #endif