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111
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1 /* Backward compatibility unwind routines.
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2 Copyright (C) 2004-2017 Free Software Foundation, Inc.
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3
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4 This file is part of GCC.
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5
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6 GCC is free software; you can redistribute it and/or modify it
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7 under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 3, or (at your option)
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9 any later version.
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10
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11 GCC is distributed in the hope that it will be useful, but WITHOUT
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12 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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14 License for more details.
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15
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16 Under Section 7 of GPL version 3, you are granted additional
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17 permissions described in the GCC Runtime Library Exception, version
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18 3.1, as published by the Free Software Foundation.
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19
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20 You should have received a copy of the GNU General Public License and
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21 a copy of the GCC Runtime Library Exception along with this program;
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22 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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23 <http://www.gnu.org/licenses/>. */
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24
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25 #if defined (USE_GAS_SYMVER) && defined (USE_LIBUNWIND_EXCEPTIONS)
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26 #include "tconfig.h"
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27 #include "tsystem.h"
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28 #include "unwind.h"
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29 #include "unwind-dw2-fde.h"
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30 #include "unwind-compat.h"
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31
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32 extern _Unwind_Reason_Code __libunwind_Unwind_Backtrace
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33 (_Unwind_Trace_Fn, void *);
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34
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35 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
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36 _Unwind_Backtrace (_Unwind_Trace_Fn trace, void *trace_argument)
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37 {
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38 return __libunwind_Unwind_Backtrace (trace, trace_argument);
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39 }
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40 symver (_Unwind_Backtrace, GCC_3.3);
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41
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42 extern void __libunwind_Unwind_DeleteException
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43 (struct _Unwind_Exception *);
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44
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45 void
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46 _Unwind_DeleteException (struct _Unwind_Exception *exc)
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47 {
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48 return __libunwind_Unwind_DeleteException (exc);
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49 }
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50 symver (_Unwind_DeleteException, GCC_3.0);
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51
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52 extern void * __libunwind_Unwind_FindEnclosingFunction (void *);
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53
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54 void *
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55 _Unwind_FindEnclosingFunction (void *pc)
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56 {
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57 return __libunwind_Unwind_FindEnclosingFunction (pc);
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58 }
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59 symver (_Unwind_FindEnclosingFunction, GCC_3.3);
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60
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61 extern _Unwind_Reason_Code __libunwind_Unwind_ForcedUnwind
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62 (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
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63
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64 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
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65 _Unwind_ForcedUnwind (struct _Unwind_Exception *exc,
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66 _Unwind_Stop_Fn stop, void * stop_argument)
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67 {
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68 return __libunwind_Unwind_ForcedUnwind (exc, stop, stop_argument);
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69 }
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70 symver (_Unwind_ForcedUnwind, GCC_3.0);
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71
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72 extern _Unwind_Word __libunwind_Unwind_GetCFA
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73 (struct _Unwind_Context *);
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74
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75 _Unwind_Word
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76 _Unwind_GetCFA (struct _Unwind_Context *context)
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77 {
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78 return __libunwind_Unwind_GetCFA (context);
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79 }
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80 symver (_Unwind_GetCFA, GCC_3.3);
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81
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82 #ifdef __ia64__
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83 extern _Unwind_Word __libunwind_Unwind_GetBSP
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84 (struct _Unwind_Context *);
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85
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86 _Unwind_Word
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87 _Unwind_GetBSP (struct _Unwind_Context * context)
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88 {
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89 return __libunwind_Unwind_GetBSP (context);
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90 }
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91 symver (_Unwind_GetBSP, GCC_3.3.2);
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92 #else
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93 extern _Unwind_Ptr __libunwind_Unwind_GetDataRelBase
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94 (struct _Unwind_Context *);
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95
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96 _Unwind_Ptr
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97 _Unwind_GetDataRelBase (struct _Unwind_Context *context)
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98 {
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99 return __libunwind_Unwind_GetDataRelBase (context);
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100 }
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101 symver (_Unwind_GetDataRelBase, GCC_3.0);
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102
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103 extern _Unwind_Ptr __libunwind_Unwind_GetTextRelBase
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104 (struct _Unwind_Context *);
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105
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106 _Unwind_Ptr
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107 _Unwind_GetTextRelBase (struct _Unwind_Context *context)
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108 {
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109 return __libunwind_Unwind_GetTextRelBase (context);
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110 }
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111 symver (_Unwind_GetTextRelBase, GCC_3.0);
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112 #endif
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113
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114 extern _Unwind_Word __libunwind_Unwind_GetGR
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115 (struct _Unwind_Context *, int );
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116
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117 _Unwind_Word
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118 _Unwind_GetGR (struct _Unwind_Context *context, int index)
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119 {
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120 return __libunwind_Unwind_GetGR (context, index);
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121 }
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122 symver (_Unwind_GetGR, GCC_3.0);
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123
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124 extern _Unwind_Ptr __libunwind_Unwind_GetIP (struct _Unwind_Context *);
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125
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126 _Unwind_Ptr
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127 _Unwind_GetIP (struct _Unwind_Context *context)
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128 {
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129 return __libunwind_Unwind_GetIP (context);
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130 }
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131 symver (_Unwind_GetIP, GCC_3.0);
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132
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133 _Unwind_Ptr
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134 _Unwind_GetIPInfo (struct _Unwind_Context *context, int *ip_before_insn)
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135 {
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136 *ip_before_insn = 0;
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137 return __libunwind_Unwind_GetIP (context);
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138 }
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139
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140 extern void *__libunwind_Unwind_GetLanguageSpecificData
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141 (struct _Unwind_Context *);
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142
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143 void *
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144 _Unwind_GetLanguageSpecificData (struct _Unwind_Context *context)
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145 {
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146 return __libunwind_Unwind_GetLanguageSpecificData (context);
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147 }
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148 symver (_Unwind_GetLanguageSpecificData, GCC_3.0);
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149
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150 extern _Unwind_Ptr __libunwind_Unwind_GetRegionStart
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151 (struct _Unwind_Context *);
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152
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153 _Unwind_Ptr
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154 _Unwind_GetRegionStart (struct _Unwind_Context *context)
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155 {
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156 return __libunwind_Unwind_GetRegionStart (context);
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157 }
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158 symver (_Unwind_GetRegionStart, GCC_3.0);
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159
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160 extern _Unwind_Reason_Code __libunwind_Unwind_RaiseException
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161 (struct _Unwind_Exception *);
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162
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163 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
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164 _Unwind_RaiseException(struct _Unwind_Exception *exc)
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165 {
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166 return __libunwind_Unwind_RaiseException (exc);
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167 }
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168 symver (_Unwind_RaiseException, GCC_3.0);
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169
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170 extern void __libunwind_Unwind_Resume (struct _Unwind_Exception *);
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171
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172 void LIBGCC2_UNWIND_ATTRIBUTE
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173 _Unwind_Resume (struct _Unwind_Exception *exc)
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174 {
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175 __libunwind_Unwind_Resume (exc);
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176 }
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177 symver (_Unwind_Resume, GCC_3.0);
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178
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179 extern _Unwind_Reason_Code __libunwind_Unwind_Resume_or_Rethrow
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180 (struct _Unwind_Exception *);
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181
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182 _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
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183 _Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc)
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184 {
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185 return __libunwind_Unwind_Resume_or_Rethrow (exc);
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186 }
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187 symver (_Unwind_Resume_or_Rethrow, GCC_3.3);
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188
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189 extern void __libunwind_Unwind_SetGR
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190 (struct _Unwind_Context *, int, _Unwind_Word);
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191
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192 void
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193 _Unwind_SetGR (struct _Unwind_Context *context, int index,
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194 _Unwind_Word val)
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195 {
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196 __libunwind_Unwind_SetGR (context, index, val);
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197 }
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198 symver (_Unwind_SetGR, GCC_3.0);
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199
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200 extern void __libunwind_Unwind_SetIP
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201 (struct _Unwind_Context *, _Unwind_Ptr);
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202
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203 void
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204 _Unwind_SetIP (struct _Unwind_Context *context, _Unwind_Ptr val)
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205 {
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206 return __libunwind_Unwind_SetIP (context, val);
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207 }
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208 symver (_Unwind_SetIP, GCC_3.0);
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209 #endif
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