libgcc/config/ia64/unwind-ia64.h

   1 /* Copyright (C) 1999, 2000, 2001, 2007, 2009 Free Software Foundation, Inc.
   2    Contributed by Andrew MacLeod  <amacleod@cygnus.com>
   3                   Andrew Haley  <aph@cygnus.com>
   4
   5    This file is part of GCC.
   6
   7    GCC is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3, or (at your option)
  10    any later version.
  11
  12    GCC is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with GCC; see the file COPYING3.  If not see
  19    <http://www.gnu.org/licenses/>.  */
  20
  21 struct unw_table_entry
  22 {
  23   unsigned long start_offset;
  24   unsigned long end_offset;
  25   unsigned long info_offset;
  26 };
  27
  28 /* Accessors to fields of an unwind info block header.  In this common file to
  29    be visible from all the units involved in a target implementation.  */
  30
  31 #ifndef __USING_SJLJ_EXCEPTIONS__
  32 #define UNW_VER(x)              ((x) >> 48)
  33 #define UNW_FLAG_MASK           0x0000ffff00000000
  34 #define UNW_FLAG_OSMASK         0x0000f00000000000
  35 #define UNW_FLAG_EHANDLER(x)    ((x) & 0x0000000100000000L)
  36 #define UNW_FLAG_UHANDLER(x)    ((x) & 0x0000000200000000L)
  37 #define UNW_LENGTH(x)           ((x) & 0x00000000ffffffffL)
  38 #endif
  39
  40 extern struct unw_table_entry *
  41 _Unwind_FindTableEntry (void *pc, unsigned long *segment_base,
  42                         unsigned long *gp, struct unw_table_entry *ent)
  43                         __attribute__ ((__visibility__ ("hidden")));