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1 /* Backward compatibility unwind routines.
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2 Copyright (C) 2004, 2005, 2006, 2009
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3 Free Software Foundation, Inc.
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4
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5 This file is part of GCC.
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6
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7 GCC is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by
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9 the Free Software Foundation; either version 3, or (at your option)
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10 any later version.
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11
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12 GCC is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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15 License for more details.
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16
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17 Under Section 7 of GPL version 3, you are granted additional
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18 permissions described in the GCC Runtime Library Exception, version
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19 3.1, as published by the Free Software Foundation.
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20
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21 You should have received a copy of the GNU General Public License and
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22 a copy of the GCC Runtime Library Exception along with this program;
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23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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24 <http://www.gnu.org/licenses/>. */
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25
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26 #if defined (USE_GAS_SYMVER) && defined (USE_LIBUNWIND_EXCEPTIONS)
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27 #include "tconfig.h"
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28 #include "tsystem.h"
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29 #include "unwind.h"
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30 #include "unwind-dw2-fde.h"
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31 #include "unwind-compat.h"
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32
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33 extern _Unwind_Reason_Code __libunwind_Unwind_Backtrace
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34 (_Unwind_Trace_Fn, void *);
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35
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36 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
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37 _Unwind_Backtrace (_Unwind_Trace_Fn trace, void *trace_argument)
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38 {
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39 return __libunwind_Unwind_Backtrace (trace, trace_argument);
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40 }
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41 symver (_Unwind_Backtrace, GCC_3.3);
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42
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43 extern void __libunwind_Unwind_DeleteException
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44 (struct _Unwind_Exception *);
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45
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46 void
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47 _Unwind_DeleteException (struct _Unwind_Exception *exc)
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48 {
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49 return __libunwind_Unwind_DeleteException (exc);
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50 }
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51 symver (_Unwind_DeleteException, GCC_3.0);
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52
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53 extern void * __libunwind_Unwind_FindEnclosingFunction (void *);
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54
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55 void *
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56 _Unwind_FindEnclosingFunction (void *pc)
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57 {
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58 return __libunwind_Unwind_FindEnclosingFunction (pc);
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59 }
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60 symver (_Unwind_FindEnclosingFunction, GCC_3.3);
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61
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62 extern _Unwind_Reason_Code __libunwind_Unwind_ForcedUnwind
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63 (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
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64
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65 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
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66 _Unwind_ForcedUnwind (struct _Unwind_Exception *exc,
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67 _Unwind_Stop_Fn stop, void * stop_argument)
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68 {
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69 return __libunwind_Unwind_ForcedUnwind (exc, stop, stop_argument);
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70 }
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71 symver (_Unwind_ForcedUnwind, GCC_3.0);
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72
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73 extern _Unwind_Word __libunwind_Unwind_GetCFA
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74 (struct _Unwind_Context *);
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75
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76 _Unwind_Word
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77 _Unwind_GetCFA (struct _Unwind_Context *context)
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78 {
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79 return __libunwind_Unwind_GetCFA (context);
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80 }
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81 symver (_Unwind_GetCFA, GCC_3.3);
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82
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83 #ifdef __ia64__
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84 extern _Unwind_Word __libunwind_Unwind_GetBSP
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85 (struct _Unwind_Context *);
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86
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87 _Unwind_Word
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88 _Unwind_GetBSP (struct _Unwind_Context * context)
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89 {
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90 return __libunwind_Unwind_GetBSP (context);
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91 }
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92 symver (_Unwind_GetBSP, GCC_3.3.2);
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93 #else
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94 extern _Unwind_Ptr __libunwind_Unwind_GetDataRelBase
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95 (struct _Unwind_Context *);
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96
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97 _Unwind_Ptr
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98 _Unwind_GetDataRelBase (struct _Unwind_Context *context)
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99 {
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100 return __libunwind_Unwind_GetDataRelBase (context);
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101 }
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102 symver (_Unwind_GetDataRelBase, GCC_3.0);
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103
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104 extern _Unwind_Ptr __libunwind_Unwind_GetTextRelBase
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105 (struct _Unwind_Context *);
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106
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107 _Unwind_Ptr
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108 _Unwind_GetTextRelBase (struct _Unwind_Context *context)
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109 {
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110 return __libunwind_Unwind_GetTextRelBase (context);
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111 }
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112 symver (_Unwind_GetTextRelBase, GCC_3.0);
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113 #endif
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114
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115 extern _Unwind_Word __libunwind_Unwind_GetGR
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116 (struct _Unwind_Context *, int );
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117
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118 _Unwind_Word
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119 _Unwind_GetGR (struct _Unwind_Context *context, int index)
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120 {
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121 return __libunwind_Unwind_GetGR (context, index);
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122 }
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123 symver (_Unwind_GetGR, GCC_3.0);
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124
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125 extern _Unwind_Ptr __libunwind_Unwind_GetIP (struct _Unwind_Context *);
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126
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127 _Unwind_Ptr
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128 _Unwind_GetIP (struct _Unwind_Context *context)
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129 {
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130 return __libunwind_Unwind_GetIP (context);
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131 }
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132 symver (_Unwind_GetIP, GCC_3.0);
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133
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134 _Unwind_Ptr
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135 _Unwind_GetIPInfo (struct _Unwind_Context *context, int *ip_before_insn)
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136 {
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137 *ip_before_insn = 0;
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138 return __libunwind_Unwind_GetIP (context);
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139 }
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140
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141 extern void *__libunwind_Unwind_GetLanguageSpecificData
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142 (struct _Unwind_Context *);
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143
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144 void *
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145 _Unwind_GetLanguageSpecificData (struct _Unwind_Context *context)
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146 {
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147 return __libunwind_Unwind_GetLanguageSpecificData (context);
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148 }
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149 symver (_Unwind_GetLanguageSpecificData, GCC_3.0);
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150
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151 extern _Unwind_Ptr __libunwind_Unwind_GetRegionStart
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152 (struct _Unwind_Context *);
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153
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154 _Unwind_Ptr
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155 _Unwind_GetRegionStart (struct _Unwind_Context *context)
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156 {
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157 return __libunwind_Unwind_GetRegionStart (context);
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158 }
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159 symver (_Unwind_GetRegionStart, GCC_3.0);
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160
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161 extern _Unwind_Reason_Code __libunwind_Unwind_RaiseException
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162 (struct _Unwind_Exception *);
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163
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164 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
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165 _Unwind_RaiseException(struct _Unwind_Exception *exc)
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166 {
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167 return __libunwind_Unwind_RaiseException (exc);
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168 }
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169 symver (_Unwind_RaiseException, GCC_3.0);
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170
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171 extern void __libunwind_Unwind_Resume (struct _Unwind_Exception *);
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172
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173 void LIBGCC2_UNWIND_ATTRIBUTE
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174 _Unwind_Resume (struct _Unwind_Exception *exc)
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175 {
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176 __libunwind_Unwind_Resume (exc);
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177 }
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178 symver (_Unwind_Resume, GCC_3.0);
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179
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180 extern _Unwind_Reason_Code __libunwind_Unwind_Resume_or_Rethrow
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181 (struct _Unwind_Exception *);
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182
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183 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
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184 _Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc)
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185 {
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186 return __libunwind_Unwind_Resume_or_Rethrow (exc);
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187 }
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188 symver (_Unwind_Resume_or_Rethrow, GCC_3.3);
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189
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190 extern void __libunwind_Unwind_SetGR
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191 (struct _Unwind_Context *, int, _Unwind_Word);
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192
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193 void
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194 _Unwind_SetGR (struct _Unwind_Context *context, int index,
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195 _Unwind_Word val)
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196 {
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197 __libunwind_Unwind_SetGR (context, index, val);
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198 }
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199 symver (_Unwind_SetGR, GCC_3.0);
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200
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201 extern void __libunwind_Unwind_SetIP
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202 (struct _Unwind_Context *, _Unwind_Ptr);
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203
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204 void
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205 _Unwind_SetIP (struct _Unwind_Context *context, _Unwind_Ptr val)
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206 {
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207 return __libunwind_Unwind_SetIP (context, val);
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208 }
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209 symver (_Unwind_SetIP, GCC_3.0);
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210 #endif
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