1  /* Copyright (C) 2003-2023 Free Software Foundation, Inc.
       2     This file is part of the GNU C Library.
       3  
       4     The GNU C Library is free software; you can redistribute it and/or
       5     modify it under the terms of the GNU Lesser General Public License as
       6     published by the Free Software Foundation; either version 2.1 of the
       7     License, or (at your option) any later version.
       8  
       9     The GNU C Library is distributed in the hope that it will be useful,
      10     but WITHOUT ANY WARRANTY; without even the implied warranty of
      11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12     Lesser General Public License for more details.
      13  
      14     You should have received a copy of the GNU Lesser General Public
      15     License along with the GNU C Library; see the file COPYING.LIB.  If
      16     not, see <https://www.gnu.org/licenses/>.  */
      17  
      18  #include <stdio.h>
      19  #include <gnu/lib-names.h>
      20  #include <unwind-link.h>
      21  #include <sysdep.h>
      22  #include <unwind-resume.h>
      23  
      24  static struct unwind_link *
      25  link (void)
      26  {
      27    struct unwind_link *unwind_link = __libc_unwind_link_get ();
      28    if (unwind_link == NULL)
      29      __libc_fatal (LIBGCC_S_SO " must be installed for unwinding to work\n");
      30    return unwind_link;
      31  }
      32  
      33  #if !HAVE_ARCH_UNWIND_RESUME
      34  void
      35  _Unwind_Resume (struct _Unwind_Exception *exc)
      36  {
      37    UNWIND_LINK_PTR (link (), _Unwind_Resume) (exc);
      38  }
      39  #endif
      40  
      41  _Unwind_Reason_Code
      42  __gcc_personality_v0 PERSONALITY_PROTO
      43  {
      44    return UNWIND_LINK_PTR (link (), personality) PERSONALITY_ARGS;
      45  }
      46  
      47  _Unwind_Reason_Code
      48  _Unwind_ForcedUnwind (struct _Unwind_Exception *exc, _Unwind_Stop_Fn stop,
      49                        void *stop_argument)
      50  {
      51    return UNWIND_LINK_PTR (link (), _Unwind_ForcedUnwind)
      52      (exc, stop, stop_argument);
      53  }
      54  
      55  _Unwind_Word
      56  _Unwind_GetCFA (struct _Unwind_Context *context)
      57  {
      58    return UNWIND_LINK_PTR (link (), _Unwind_GetCFA) (context);
      59  }