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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-6.8/] [sim/] [common/] [hw-alloc.c] - Rev 856
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/* Hardware memory allocator. Copyright (C) 1998, 2007, 2008 Free Software Foundation, Inc. Contributed by Cygnus Support. This file is part of GDB, the GNU debugger. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "hw-main.h" #include "hw-base.h" #ifdef HAVE_STDLIB_H #include <stdlib.h> #endif struct hw_alloc_data { void *alloc; int zalloc_p; struct hw_alloc_data *next; }; void create_hw_alloc_data (struct hw *me) { /* NULL */ } void delete_hw_alloc_data (struct hw *me) { while (me->alloc_of_hw != NULL) { hw_free (me, me->alloc_of_hw->alloc); } } void * hw_zalloc (struct hw *me, unsigned long size) { struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data); memory->alloc = zalloc (size); memory->zalloc_p = 1; memory->next = me->alloc_of_hw; me->alloc_of_hw = memory; return memory->alloc; } void * hw_malloc (struct hw *me, unsigned long size) { struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data); memory->alloc = zalloc (size); memory->zalloc_p = 0; memory->next = me->alloc_of_hw; me->alloc_of_hw = memory; return memory->alloc; } void hw_free (struct hw *me, void *alloc) { struct hw_alloc_data **memory; for (memory = &me->alloc_of_hw; *memory != NULL; memory = &(*memory)->next) { if ((*memory)->alloc == alloc) { struct hw_alloc_data *die = (*memory); (*memory) = die->next; if (die->zalloc_p) zfree (die->alloc); else free (die->alloc); zfree (die); return; } } hw_abort (me, "free of memory not belonging to a device"); }
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