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  1. /* Backward compatibility unwind routines.
  2.    Copyright (C) 2004-2015 Free Software Foundation, Inc.
  3.  
  4.    This file is part of GCC.
  5.  
  6.    GCC is free software; you can redistribute it and/or modify it
  7.    under the terms of the GNU General Public License as published by
  8.    the Free Software Foundation; either version 3, or (at your option)
  9.    any later version.
  10.  
  11.    GCC is distributed in the hope that it will be useful, but WITHOUT
  12.    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13.    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14.    License for more details.
  15.  
  16.    Under Section 7 of GPL version 3, you are granted additional
  17.    permissions described in the GCC Runtime Library Exception, version
  18.    3.1, as published by the Free Software Foundation.
  19.  
  20.    You should have received a copy of the GNU General Public License and
  21.    a copy of the GCC Runtime Library Exception along with this program;
  22.    see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  23.    <http://www.gnu.org/licenses/>.  */
  24.  
  25. #if defined (USE_GAS_SYMVER) && defined (USE_LIBUNWIND_EXCEPTIONS)
  26. #include "tconfig.h"
  27. #include "tsystem.h"
  28. #include "unwind.h"
  29. #include "unwind-dw2-fde.h"
  30. #include "unwind-compat.h"
  31.  
  32. extern _Unwind_Reason_Code __libunwind_Unwind_Backtrace
  33.   (_Unwind_Trace_Fn, void *);
  34.  
  35. _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
  36. _Unwind_Backtrace (_Unwind_Trace_Fn trace, void *trace_argument)
  37. {
  38.   return __libunwind_Unwind_Backtrace (trace, trace_argument);
  39. }
  40. symver (_Unwind_Backtrace, GCC_3.3);
  41.  
  42. extern void __libunwind_Unwind_DeleteException
  43.   (struct _Unwind_Exception *);
  44.  
  45. void
  46. _Unwind_DeleteException (struct _Unwind_Exception *exc)
  47. {
  48.   return __libunwind_Unwind_DeleteException (exc);
  49. }
  50. symver (_Unwind_DeleteException, GCC_3.0);
  51.  
  52. extern void * __libunwind_Unwind_FindEnclosingFunction (void *);
  53.  
  54. void *
  55. _Unwind_FindEnclosingFunction (void *pc)
  56. {
  57.   return __libunwind_Unwind_FindEnclosingFunction (pc);
  58. }
  59. symver (_Unwind_FindEnclosingFunction, GCC_3.3);
  60.  
  61. extern _Unwind_Reason_Code __libunwind_Unwind_ForcedUnwind
  62.   (struct _Unwind_Exception *, _Unwind_Stop_Fn, void *);
  63.  
  64. _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
  65. _Unwind_ForcedUnwind (struct _Unwind_Exception *exc,
  66.                       _Unwind_Stop_Fn stop, void * stop_argument)
  67. {
  68.   return __libunwind_Unwind_ForcedUnwind (exc, stop, stop_argument);
  69. }
  70. symver (_Unwind_ForcedUnwind, GCC_3.0);
  71.  
  72. extern _Unwind_Word __libunwind_Unwind_GetCFA
  73.   (struct _Unwind_Context *);
  74.  
  75. _Unwind_Word
  76. _Unwind_GetCFA (struct _Unwind_Context *context)
  77. {
  78.   return __libunwind_Unwind_GetCFA (context);
  79. }
  80. symver (_Unwind_GetCFA, GCC_3.3);
  81.  
  82. #ifdef __ia64__
  83. extern _Unwind_Word __libunwind_Unwind_GetBSP
  84.   (struct _Unwind_Context *);
  85.  
  86. _Unwind_Word
  87. _Unwind_GetBSP (struct _Unwind_Context * context)
  88. {
  89.   return __libunwind_Unwind_GetBSP (context);
  90. }
  91. symver (_Unwind_GetBSP, GCC_3.3.2);
  92. #else
  93. extern _Unwind_Ptr __libunwind_Unwind_GetDataRelBase
  94.   (struct _Unwind_Context *);
  95.  
  96. _Unwind_Ptr
  97. _Unwind_GetDataRelBase (struct _Unwind_Context *context)
  98. {
  99.   return __libunwind_Unwind_GetDataRelBase (context);
  100. }
  101. symver (_Unwind_GetDataRelBase, GCC_3.0);
  102.  
  103. extern _Unwind_Ptr __libunwind_Unwind_GetTextRelBase
  104.   (struct _Unwind_Context *);
  105.  
  106. _Unwind_Ptr
  107. _Unwind_GetTextRelBase (struct _Unwind_Context *context)
  108. {
  109.   return __libunwind_Unwind_GetTextRelBase (context);
  110. }
  111. symver (_Unwind_GetTextRelBase, GCC_3.0);
  112. #endif
  113.  
  114. extern _Unwind_Word __libunwind_Unwind_GetGR
  115.   (struct _Unwind_Context *, int );
  116.  
  117. _Unwind_Word
  118. _Unwind_GetGR (struct _Unwind_Context *context, int index)
  119. {
  120.   return __libunwind_Unwind_GetGR (context, index);
  121. }
  122. symver (_Unwind_GetGR, GCC_3.0);
  123.  
  124. extern _Unwind_Ptr __libunwind_Unwind_GetIP (struct _Unwind_Context *);
  125.  
  126. _Unwind_Ptr
  127. _Unwind_GetIP (struct _Unwind_Context *context)
  128. {
  129.   return __libunwind_Unwind_GetIP (context);
  130. }
  131. symver (_Unwind_GetIP, GCC_3.0);
  132.  
  133. _Unwind_Ptr
  134. _Unwind_GetIPInfo (struct _Unwind_Context *context, int *ip_before_insn)
  135. {
  136.   *ip_before_insn = 0;
  137.   return __libunwind_Unwind_GetIP (context);
  138. }
  139.  
  140. extern void *__libunwind_Unwind_GetLanguageSpecificData
  141.   (struct _Unwind_Context *);
  142.  
  143. void *
  144. _Unwind_GetLanguageSpecificData (struct _Unwind_Context *context)
  145. {
  146.   return __libunwind_Unwind_GetLanguageSpecificData (context);
  147. }
  148. symver (_Unwind_GetLanguageSpecificData, GCC_3.0);
  149.  
  150. extern _Unwind_Ptr __libunwind_Unwind_GetRegionStart
  151.   (struct _Unwind_Context *);
  152.  
  153. _Unwind_Ptr
  154. _Unwind_GetRegionStart (struct _Unwind_Context *context)
  155. {
  156.   return __libunwind_Unwind_GetRegionStart (context);
  157. }
  158. symver (_Unwind_GetRegionStart, GCC_3.0);
  159.  
  160. extern _Unwind_Reason_Code __libunwind_Unwind_RaiseException
  161.   (struct _Unwind_Exception *);
  162.  
  163. _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
  164. _Unwind_RaiseException(struct _Unwind_Exception *exc)
  165. {
  166.   return __libunwind_Unwind_RaiseException (exc);
  167. }
  168. symver (_Unwind_RaiseException, GCC_3.0);
  169.  
  170. extern void __libunwind_Unwind_Resume (struct _Unwind_Exception *);
  171.  
  172. void LIBGCC2_UNWIND_ATTRIBUTE
  173. _Unwind_Resume (struct _Unwind_Exception *exc)
  174. {
  175.   __libunwind_Unwind_Resume (exc);
  176. }
  177. symver (_Unwind_Resume, GCC_3.0);
  178.  
  179. extern _Unwind_Reason_Code __libunwind_Unwind_Resume_or_Rethrow
  180.    (struct _Unwind_Exception *);
  181.  
  182. _Unwind_Reason_Code LIBGCC2_UNWIND_ATTRIBUTE
  183. _Unwind_Resume_or_Rethrow (struct _Unwind_Exception *exc)
  184. {
  185.   return __libunwind_Unwind_Resume_or_Rethrow (exc);
  186. }
  187. symver (_Unwind_Resume_or_Rethrow, GCC_3.3);
  188.  
  189. extern void __libunwind_Unwind_SetGR
  190.   (struct _Unwind_Context *, int, _Unwind_Word);
  191.  
  192. void
  193. _Unwind_SetGR (struct _Unwind_Context *context, int index,
  194.                _Unwind_Word val)
  195. {
  196.   __libunwind_Unwind_SetGR (context, index, val);
  197. }
  198. symver (_Unwind_SetGR, GCC_3.0);
  199.  
  200. extern void __libunwind_Unwind_SetIP
  201.   (struct _Unwind_Context *, _Unwind_Ptr);
  202.  
  203. void
  204. _Unwind_SetIP (struct _Unwind_Context *context, _Unwind_Ptr val)
  205. {
  206.   return __libunwind_Unwind_SetIP (context, val);
  207. }
  208. symver (_Unwind_SetIP, GCC_3.0);
  209. #endif
  210.