sysdeps/i386/unwind-arch.h

   1 /* Dynamic loading of the libgcc unwinder.  i386 customization.
   2    Copyright (C) 2021-2022 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _ARCH_UNWIND_LINK_H
  20 #define _ARCH_UNWIND_LINK_H
  21
  22 #define UNWIND_LINK_GETIP 1
  23 #define UNWIND_LINK_FRAME_STATE_FOR 1
  24 #define UNWIND_LINK_FRAME_ADJUSTMENT 0
  25 #define UNWIND_LINK_EXTRA_FIELDS \
  26   __typeof (_Unwind_GetGR) *ptr__Unwind_GetGR;
  27 #define UNWIND_LINK_EXTRA_INIT_SHARED                       \
  28   local.ptr__Unwind_GetGR                                   \
  29     = __libc_dlsym (local_libgcc_handle, "_Unwind_GetGR");  \
  30   assert (local.ptr__Unwind_GetGR != NULL);
  31 #ifdef PTR_MANGLE
  32 # define UNWIND_LINK_EXTRA_INIT                 \
  33   UNWIND_LINK_EXTRA_INIT_SHARED                 \
  34   PTR_MANGLE (local.ptr__Unwind_GetGR);
  35 #else
  36 # define UNWIND_LINK_EXTRA_INIT UNWIND_LINK_EXTRA_INIT_SHARED
  37 #endif
  38
  39 #endif /* _ARCH_UNWIND_LINK_H */