src/target/register.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
   6  *   oyvind.harboe@zylin.com                                               *
   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 2 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, write to the                         *
  20  *   Free Software Foundation, Inc.,                                       *
  21  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  22  ***************************************************************************/
  23
  24 #ifndef REGISTER_H
  25 #define REGISTER_H
  26
  27 struct target;
  28
  29 enum reg_type {
  30         REG_TYPE_INT,
  31         REG_TYPE_INT8,
  32         REG_TYPE_INT16,
  33         REG_TYPE_INT32,
  34         REG_TYPE_INT64,
  35         REG_TYPE_INT128,
  36         REG_TYPE_UINT8,
  37         REG_TYPE_UINT16,
  38         REG_TYPE_UINT32,
  39         REG_TYPE_UINT64,
  40         REG_TYPE_UINT128,
  41         REG_TYPE_CODE_PTR,
  42         REG_TYPE_DATA_PTR,
  43         REG_TYPE_FLOAT,
  44         REG_TYPE_IEEE_SINGLE,
  45         REG_TYPE_IEEE_DOUBLE,
  46         REG_TYPE_ARCH_DEFINED,
  47 };
  48
  49 struct reg_feature {
  50         const char *name;
  51 };
  52
  53 struct reg_data_type_vector {
  54         struct reg_data_type *type;
  55         uint32_t count;
  56 };
  57
  58 struct reg_data_type_union_field {
  59         const char *name;
  60         struct reg_data_type *type;
  61         struct reg_data_type_union_field *next;
  62 };
  63
  64 struct reg_data_type_union {
  65         struct reg_data_type_union_field *fields;
  66 };
  67
  68 struct reg_data_type_bitfield {
  69         uint32_t start;
  70         uint32_t end;
  71 };
  72
  73 struct reg_data_type_struct_field {
  74         const char *name;
  75         bool use_bitfields;
  76         union {
  77                 struct reg_data_type_bitfield *bitfield;
  78                 struct reg_data_type *type;
  79         };
  80         struct reg_data_type_struct_field *next;
  81 };
  82
  83 struct reg_data_type_struct {
  84         uint32_t size;
  85         struct reg_data_type_struct_field *fields;
  86 };
  87
  88 struct reg_data_type_flags_field {
  89         const char *name;
  90         struct reg_data_type_bitfield *bitfield;
  91         struct reg_data_type_flags_field *next;
  92 };
  93
  94 struct reg_data_type_flags {
  95         uint32_t size;
  96         struct reg_data_type_flags_field *fields;
  97 };
  98
  99 enum reg_data_type_class {
 100         REG_TYPE_CLASS_VECTOR,
 101         REG_TYPE_CLASS_UNION,
 102         REG_TYPE_CLASS_STRUCT,
 103         REG_TYPE_CLASS_FLAGS,
 104 };
 105
 106 struct reg_data_type {
 107         enum reg_type type;
 108         const char *id;
 109         enum reg_data_type_class type_class;
 110         union {
 111                 struct reg_data_type_vector *reg_type_vector;
 112                 struct reg_data_type_union *reg_type_union;
 113                 struct reg_data_type_struct *reg_type_struct;
 114                 struct reg_data_type_flags *reg_type_flags;
 115         };
 116 };
 117
 118 struct reg {
 119         const char *name;
 120         uint32_t number;
 121         struct reg_feature *feature;
 122         bool caller_save;
 123         void *value;
 124         bool dirty;
 125         bool valid;
 126         bool exist;
 127         uint32_t size;
 128         struct reg_data_type *reg_data_type;
 129         const char *group;
 130         void *arch_info;
 131         const struct reg_arch_type *type;
 132 };
 133
 134 struct reg_cache {
 135         const char *name;
 136         struct reg_cache *next;
 137         struct reg *reg_list;
 138         unsigned num_regs;
 139 };
 140
 141 struct reg_arch_type {
 142         int (*get)(struct reg *reg);
 143         int (*set)(struct reg *reg, uint8_t *buf);
 144 };
 145
 146 struct reg *register_get_by_name(struct reg_cache *first,
 147                 const char *name, bool search_all);
 148 struct reg_cache **register_get_last_cache_p(struct reg_cache **first);
 149 void register_cache_invalidate(struct reg_cache *cache);
 150
 151 void register_init_dummy(struct reg *reg);
 152
 153 #endif /* REGISTER_H */