gdb/regset.h

   1 /* Manage register sets.
   2
   3    Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010
   4    Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef REGSET_H
  22 #define REGSET_H 1
  23
  24 struct gdbarch;
  25 struct regcache;
  26
  27 /* Data structure for the supported register notes in a core file.  */
  28 struct core_regset_section
  29 {
  30   const char *sect_name;
  31   int size;
  32   const char *human_name;
  33 };
  34
  35 /* Data structure describing a register set.  */
  36
  37 typedef void (supply_regset_ftype) (const struct regset *, struct regcache *,
  38                                     int, const void *, size_t);
  39 typedef void (collect_regset_ftype) (const struct regset *,
  40                                      const struct regcache *,
  41                                      int, void *, size_t);
  42
  43 struct regset
  44 {
  45   /* Data pointer for private use by the methods below, presumably
  46      providing some sort of description of the register set.  */
  47   const void *descr;
  48
  49   /* Function supplying values in a register set to a register cache.  */
  50   supply_regset_ftype *supply_regset;
  51
  52   /* Function collecting values in a register set from a register cache.  */
  53   collect_regset_ftype *collect_regset;
  54
  55   /* Architecture associated with the register set.  */
  56   struct gdbarch *arch;
  57 };
  58
  59 /* Allocate a fresh 'struct regset' whose supply_regset function is
  60    SUPPLY_REGSET, and whose collect_regset function is COLLECT_REGSET.
  61    If the regset has no collect_regset function, pass NULL for
  62    COLLECT_REGSET.
  63
  64    The object returned is allocated on ARCH's obstack.  */
  65
  66 extern struct regset *regset_alloc (struct gdbarch *arch,
  67                                     supply_regset_ftype *supply_regset,
  68                                     collect_regset_ftype *collect_regset);
  69
  70 #endif /* regset.h */