gdb/regset.h

   1 /* Manage register sets.
   2
   3    Copyright (C) 2003, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program 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 of the License, or
  10    (at your option) any later version.
  11
  12    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef REGSET_H
  21 #define REGSET_H 1
  22
  23 struct gdbarch;
  24 struct regcache;
  25
  26 /* Data structure for the supported register notes in a core file.  */
  27 struct core_regset_section
  28 {
  29   const char *sect_name;
  30   int size;
  31 };
  32
  33 /* Data structure describing a register set.  */
  34
  35 typedef void (supply_regset_ftype) (const struct regset *, struct regcache *,
  36                                     int, const void *, size_t);
  37 typedef void (collect_regset_ftype) (const struct regset *,
  38                                      const struct regcache *,
  39                                      int, void *, size_t);
  40
  41 struct regset
  42 {
  43   /* Data pointer for private use by the methods below, presumably
  44      providing some sort of description of the register set.  */
  45   const void *descr;
  46
  47   /* Function supplying values in a register set to a register cache.  */
  48   supply_regset_ftype *supply_regset;
  49
  50   /* Function collecting values in a register set from a register cache.  */
  51   collect_regset_ftype *collect_regset;
  52
  53   /* Architecture associated with the register set.  */
  54   struct gdbarch *arch;
  55 };
  56
  57 /* Allocate a fresh 'struct regset' whose supply_regset function is
  58    SUPPLY_REGSET, and whose collect_regset function is COLLECT_REGSET.
  59    If the regset has no collect_regset function, pass NULL for
  60    COLLECT_REGSET.
  61
  62    The object returned is allocated on ARCH's obstack.  */
  63
  64 extern struct regset *regset_alloc (struct gdbarch *arch,
  65                                     supply_regset_ftype *supply_regset,
  66                                     collect_regset_ftype *collect_regset);
  67
  68 #endif /* regset.h */