Commit | Line | Data |
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c906108c | 1 | /* Hardware memory allocator. |
9b254dd1 | 2 | Copyright (C) 1998, 2007, 2008 Free Software Foundation, Inc. |
c906108c SS |
3 | Contributed by Cygnus Support. |
4 | ||
5 | This file is part of GDB, the GNU debugger. | |
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 | |
4744ac1b JB |
9 | the Free Software Foundation; either version 3 of the License, or |
10 | (at your option) any later version. | |
c906108c SS |
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 | ||
4744ac1b JB |
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/>. */ | |
c906108c SS |
19 | |
20 | ||
21 | #include "hw-main.h" | |
22 | #include "hw-base.h" | |
23 | ||
24 | ||
25 | #ifdef HAVE_STDLIB_H | |
26 | #include <stdlib.h> | |
27 | #endif | |
28 | ||
29 | struct hw_alloc_data { | |
30 | void *alloc; | |
31 | int zalloc_p; | |
32 | struct hw_alloc_data *next; | |
33 | }; | |
34 | ||
35 | void | |
36 | create_hw_alloc_data (struct hw *me) | |
37 | { | |
38 | /* NULL */ | |
39 | } | |
40 | ||
41 | void | |
42 | delete_hw_alloc_data (struct hw *me) | |
43 | { | |
c906108c SS |
44 | while (me->alloc_of_hw != NULL) |
45 | { | |
46 | hw_free (me, me->alloc_of_hw->alloc); | |
47 | } | |
48 | } | |
49 | ||
50 | ||
51 | ||
52 | void * | |
53 | hw_zalloc (struct hw *me, unsigned long size) | |
54 | { | |
55 | struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data); | |
56 | memory->alloc = zalloc (size); | |
57 | memory->zalloc_p = 1; | |
58 | memory->next = me->alloc_of_hw; | |
59 | me->alloc_of_hw = memory; | |
60 | return memory->alloc; | |
61 | } | |
62 | ||
63 | void * | |
64 | hw_malloc (struct hw *me, unsigned long size) | |
65 | { | |
66 | struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data); | |
67 | memory->alloc = zalloc (size); | |
68 | memory->zalloc_p = 0; | |
69 | memory->next = me->alloc_of_hw; | |
70 | me->alloc_of_hw = memory; | |
71 | return memory->alloc; | |
72 | } | |
73 | ||
74 | void | |
75 | hw_free (struct hw *me, | |
76 | void *alloc) | |
77 | { | |
78 | struct hw_alloc_data **memory; | |
79 | for (memory = &me->alloc_of_hw; | |
80 | *memory != NULL; | |
81 | memory = &(*memory)->next) | |
82 | { | |
83 | if ((*memory)->alloc == alloc) | |
84 | { | |
85 | struct hw_alloc_data *die = (*memory); | |
86 | (*memory) = die->next; | |
87 | if (die->zalloc_p) | |
88 | zfree (die->alloc); | |
89 | else | |
90 | free (die->alloc); | |
91 | zfree (die); | |
92 | return; | |
93 | } | |
94 | } | |
95 | hw_abort (me, "free of memory not belonging to a device"); | |
96 | } |