1 /* Hardware memory allocator. 2 Copyright (C) 1998, 2007, 2008, 2009, 2010, 2011 3 Free Software Foundation, Inc. 4 Contributed by Cygnus Support. 5 6 This file is part of GDB, the GNU debugger. 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 22 #include "hw-main.h" 23 #include "hw-base.h" 24 25 26 #ifdef HAVE_STDLIB_H 27 #include <stdlib.h> 28 #endif 29 30 struct hw_alloc_data 31 { 32 void *alloc; 33 struct hw_alloc_data *next; 34 }; 35 36 void 37 create_hw_alloc_data (struct hw *me) 38 { 39 /* NULL */ 40 } 41 42 void 43 delete_hw_alloc_data (struct hw *me) 44 { 45 while (me->alloc_of_hw != NULL) 46 { 47 hw_free (me, me->alloc_of_hw->alloc); 48 } 49 } 50 51 52 53 void * 54 hw_zalloc (struct hw *me, unsigned long size) 55 { 56 struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data); 57 memory->alloc = zalloc (size); 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->next = me->alloc_of_hw; 69 me->alloc_of_hw = memory; 70 return memory->alloc; 71 } 72 73 void 74 hw_free (struct hw *me, 75 void *alloc) 76 { 77 struct hw_alloc_data **memory; 78 for (memory = &me->alloc_of_hw; 79 *memory != NULL; 80 memory = &(*memory)->next) 81 { 82 if ((*memory)->alloc == alloc) 83 { 84 struct hw_alloc_data *die = (*memory); 85 (*memory) = die->next; 86 free (die->alloc); 87 free (die); 88 return; 89 } 90 } 91 hw_abort (me, "free of memory not belonging to a device"); 92 } 93