1 /* The common simulator framework for GDB, the GNU Debugger.
3 Copyright 2002-2015 Free Software Foundation, Inc.
5 Contributed by Andrew Cagney and Red Hat.
7 This file is part of GDB.
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.
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.
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/>. */
27 struct hw_handle_mapping
31 struct hw_instance *ihandle;
32 struct hw_handle_mapping *next;
39 struct hw_handle_mapping *mappings;
43 create_hw_handle_data (struct hw *hw)
45 if (hw_parent (hw) == NULL)
47 hw->handles_of_hw = HW_ZALLOC (hw, struct hw_handle_data);
51 hw->handles_of_hw = hw_root (hw)->handles_of_hw;
56 delete_hw_handle_data (struct hw *hw)
65 hw_handle_init (struct hw *hw)
67 struct hw_handle_mapping *current_map = db->mappings;
68 if (current_map != NULL)
70 db->nr_mappings = db->mappings->external;
71 /* verify that the mappings that were not removed are in
72 sequence down to nr 1 */
73 while (current_map->next != NULL)
75 if (current_map->external != current_map->next->external + 1)
76 error ("hw_handle: hw_handle database possibly corrupt");
77 current_map = current_map->next;
79 ASSERT (current_map->next == NULL);
80 if (current_map->external != 1)
81 error ("hw_handle: hw_handle database possibly corrupt");
92 hw_handle_ihandle2 (struct hw *hw,
95 struct hw_handle_data *db = hw->handles_of_hw;
96 struct hw_handle_mapping *current_map = db->mappings;
97 while (current_map != NULL)
99 if (current_map->external == external)
100 return current_map->ihandle;
101 current_map = current_map->next;
108 hw_handle_phandle2 (struct hw *hw,
111 struct hw_handle_data *db = hw->handles_of_hw;
112 struct hw_handle_mapping *current_map = db->mappings;
113 while (current_map != NULL)
115 if (current_map->external == external)
116 return current_map->phandle;
117 current_map = current_map->next;
124 hw_handle_2ihandle (struct hw *hw,
125 struct hw_instance *internal)
127 struct hw_handle_data *db = hw->handles_of_hw;
128 struct hw_handle_mapping *current_map = db->mappings;
129 while (current_map != NULL)
131 if (current_map->ihandle == internal)
132 return current_map->external;
133 current_map = current_map->next;
140 hw_handle_2phandle (struct hw *hw,
143 struct hw_handle_data *db = hw->handles_of_hw;
144 struct hw_handle_mapping *current_map = db->mappings;
145 while (current_map != NULL)
147 if (current_map->phandle == internal)
148 return current_map->external;
149 current_map = current_map->next;
156 hw_handle_add_ihandle (struct hw *hw,
157 struct hw_instance *internal)
159 struct hw_handle_data *db = hw->handles_of_hw;
160 if (hw_handle_2ihandle (hw, internal) != 0)
162 hw_abort (hw, "attempting to add an ihandle already in the data base");
166 /* insert at the front making things in decending order */
167 struct hw_handle_mapping *new_map = ZALLOC (struct hw_handle_mapping);
168 new_map->next = db->mappings;
169 new_map->ihandle = internal;
170 db->nr_mappings += 1;
171 new_map->external = db->nr_mappings;
172 db->mappings = new_map;
178 hw_handle_add_phandle (struct hw *hw,
181 struct hw_handle_data *db = hw->handles_of_hw;
182 if (hw_handle_2phandle (hw, internal) != 0)
184 hw_abort (hw, "attempting to add a phandle already in the data base");
188 /* insert at the front making things in decending order */
189 struct hw_handle_mapping *new_map = ZALLOC (struct hw_handle_mapping);
190 new_map->next = db->mappings;
191 new_map->phandle = internal;
192 db->nr_mappings += 1;
193 new_map->external = db->nr_mappings;
194 db->mappings = new_map;
200 hw_handle_remove_ihandle (struct hw *hw,
201 struct hw_instance *internal)
203 struct hw_handle_data *db = hw->handles_of_hw;
204 struct hw_handle_mapping **current_map = &db->mappings;
205 while (*current_map != NULL)
207 if ((*current_map)->ihandle == internal)
209 struct hw_handle_mapping *delete = *current_map;
210 *current_map = delete->next;
214 current_map = &(*current_map)->next;
216 hw_abort (hw, "attempt to remove nonexistant ihandle");
221 hw_handle_remove_phandle (struct hw *hw,
224 struct hw_handle_data *db = hw->handles_of_hw;
225 struct hw_handle_mapping **current_map = &db->mappings;
226 while (*current_map != NULL)
228 if ((*current_map)->phandle == internal)
230 struct hw_handle_mapping *delete = *current_map;
231 *current_map = delete->next;
235 current_map = &(*current_map)->next;
237 hw_abort (hw, "attempt to remove nonexistant phandle");