gdb/ia64-libunwind-tdep.h

   1 /* Frame unwinder for ia64 frames with libunwind frame information.
   2
   3    Copyright (C) 2003-2023 Free Software Foundation, Inc.
   4
   5    Contributed by Jeff Johnston.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22 #ifndef IA64_LIBUNWIND_TDEP_H
  23 #define IA64_LIBUNWIND_TDEP_H 1
  24
  25 class frame_info_ptr;
  26 struct frame_id;
  27 struct regcache;
  28 struct gdbarch;
  29 struct frame_unwind;
  30
  31 /* IA-64 is the only target that currently uses libunwind.  If some
  32    other target wants to use it, we will need to do some abstracting
  33    in order to make it possible to have more than one
  34    ia64-libunwind-tdep instance.  Including "libunwind.h" is wrong as
  35    that ends up including the libunwind-$(arch).h for the host gdb is
  36    running on.  */
  37 #include "libunwind-ia64.h"
  38
  39 #include "gdbarch.h"
  40
  41 struct libunwind_descr
  42 {
  43   int (*gdb2uw) (int) = nullptr;
  44   int (*uw2gdb) (int) = nullptr;
  45   int (*is_fpreg) (int) = nullptr;
  46   void *accessors = nullptr;
  47   void *special_accessors = nullptr;
  48 };
  49
  50 int libunwind_frame_sniffer (const struct frame_unwind *self,
  51                              frame_info_ptr this_frame,
  52                              void **this_cache);
  53
  54 int libunwind_sigtramp_frame_sniffer (const struct frame_unwind *self,
  55                                       frame_info_ptr this_frame,
  56                                       void **this_cache);
  57
  58 void libunwind_frame_set_descr (struct gdbarch *arch,
  59                                 struct libunwind_descr *descr);
  60
  61 void libunwind_frame_this_id (frame_info_ptr this_frame, void **this_cache,
  62                               struct frame_id *this_id);
  63 struct value *libunwind_frame_prev_register (frame_info_ptr this_frame,
  64                                              void **this_cache, int regnum);
  65 void libunwind_frame_dealloc_cache (frame_info_ptr self, void *cache);
  66
  67 int libunwind_is_initialized (void);
  68
  69 int libunwind_search_unwind_table (void *as, long ip, void *di,
  70                                    void *pi, int need_unwind_info, void *args);
  71
  72 unw_word_t libunwind_find_dyn_list (unw_addr_space_t, unw_dyn_info_t *,
  73                                     void *);
  74
  75 int libunwind_get_reg_special (struct gdbarch *gdbarch,
  76                                readable_regcache *regcache,
  77                                int regnum, void *buf);
  78
  79 #endif /* IA64_LIBUNWIND_TDEP_H */