sysdeps/generic/framestate.c

   1 /* __frame_state_for unwinder helper function wrapper.
   2    Copyright (C) 2001-2022 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 #include <stdlib.h>
  20 #define STATIC static
  21 #define __frame_state_for fallback_frame_state_for
  22 #include <unwind-dw2.c>
  23 #undef __frame_state_for
  24 #include <gnu/lib-names.h>
  25
  26 #include <unwind-link.h>
  27
  28 typedef struct frame_state * (*framesf)(void *pc, struct frame_state *);
  29 struct frame_state *__frame_state_for (void *pc,
  30                                        struct frame_state *frame_state);
  31
  32 struct frame_state *
  33 __frame_state_for (void *pc, struct frame_state *frame_state)
  34 {
  35   struct unwind_link *unwind_link = __libc_unwind_link_get ();
  36   if (unwind_link != NULL)
  37     return UNWIND_LINK_PTR (unwind_link, __frame_state_for) (pc, frame_state);
  38   else
  39     {
  40 #ifndef __USING_SJLJ_EXCEPTIONS__
  41       return fallback_frame_state_for (pc, frame_state);
  42 #else
  43       abort ();
  44 #endif
  45     }
  46 }