contrib/gdb-6.2.1/gdb/regset.h

   1 /* Manage register sets.
   2
   3    Copyright 2003, 2004 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 2 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, write to the Free Software
  19    Foundation, Inc., 59 Temple Place - Suite 330,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #ifndef REGSET_H
  23 #define REGSET_H 1
  24
  25 struct gdbarch;
  26 struct regcache;
  27
  28 /* Data structure describing a register set.  */
  29
  30 typedef void (supply_regset_ftype) (const struct regset *, struct regcache *,
  31                                     int, const void *, size_t);
  32 typedef void (collect_regset_ftype) (const struct regset *,
  33                                      const struct regcache *,
  34                                      int, void *, size_t);
  35
  36 struct regset
  37 {
  38   /* Data pointer for private use by the methods below, presumably
  39      providing some sort of description of the register set.  */
  40   const void *descr;
  41
  42   /* Function supplying values in a register set to a register cache.  */
  43   supply_regset_ftype *supply_regset;
  44
  45   /* Function collecting values in a register set from a register cache.  */
  46   collect_regset_ftype *collect_regset;
  47
  48   /* Architecture associated with the register set.  */
  49   struct gdbarch *arch;
  50 };
  51
  52 /* Allocate a fresh 'struct regset' whose supply_regset function is
  53    SUPPLY_REGSET, and whose collect_regset function is COLLECT_REGSET.
  54    If the regset has no collect_regset function, pass NULL for
  55    COLLECT_REGSET.
  56
  57    The object returned is allocated on ARCH's obstack.  */
  58
  59 extern struct regset *regset_alloc (struct gdbarch *arch,
  60                                     supply_regset_ftype *supply_regset,
  61                                     collect_regset_ftype *collect_regset);
  62
  63 #endif /* regset.h */