| 1 | /* Hardware memory allocator. |
| 2 | Copyright (C) 1998-2020 Free Software Foundation, Inc. |
| 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 |
| 9 | the Free Software Foundation; either version 3 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, see <http://www.gnu.org/licenses/>. */ |
| 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 | { |
| 31 | void *alloc; |
| 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 | { |
| 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->next = me->alloc_of_hw; |
| 58 | me->alloc_of_hw = memory; |
| 59 | return memory->alloc; |
| 60 | } |
| 61 | |
| 62 | void * |
| 63 | hw_malloc (struct hw *me, unsigned long size) |
| 64 | { |
| 65 | struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data); |
| 66 | memory->alloc = zalloc (size); |
| 67 | memory->next = me->alloc_of_hw; |
| 68 | me->alloc_of_hw = memory; |
| 69 | return memory->alloc; |
| 70 | } |
| 71 | |
| 72 | void |
| 73 | hw_free (struct hw *me, |
| 74 | void *alloc) |
| 75 | { |
| 76 | struct hw_alloc_data **memory; |
| 77 | for (memory = &me->alloc_of_hw; |
| 78 | *memory != NULL; |
| 79 | memory = &(*memory)->next) |
| 80 | { |
| 81 | if ((*memory)->alloc == alloc) |
| 82 | { |
| 83 | struct hw_alloc_data *die = (*memory); |
| 84 | (*memory) = die->next; |
| 85 | free (die->alloc); |
| 86 | free (die); |
| 87 | return; |
| 88 | } |
| 89 | } |
| 90 | hw_abort (me, "free of memory not belonging to a device"); |
| 91 | } |