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92 lines
2.0 KiB
C
92 lines
2.0 KiB
C
/* Hardware memory allocator.
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Copyright (C) 1998-2017 Free Software Foundation, Inc.
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Contributed by Cygnus Support.
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This file is part of GDB, the GNU debugger.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "hw-main.h"
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#include "hw-base.h"
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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struct hw_alloc_data
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{
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void *alloc;
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struct hw_alloc_data *next;
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};
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void
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create_hw_alloc_data (struct hw *me)
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{
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/* NULL */
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}
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void
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delete_hw_alloc_data (struct hw *me)
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{
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while (me->alloc_of_hw != NULL)
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{
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hw_free (me, me->alloc_of_hw->alloc);
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}
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}
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void *
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hw_zalloc (struct hw *me, unsigned long size)
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{
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struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data);
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memory->alloc = zalloc (size);
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memory->next = me->alloc_of_hw;
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me->alloc_of_hw = memory;
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return memory->alloc;
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}
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void *
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hw_malloc (struct hw *me, unsigned long size)
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{
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struct hw_alloc_data *memory = ZALLOC (struct hw_alloc_data);
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memory->alloc = zalloc (size);
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memory->next = me->alloc_of_hw;
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me->alloc_of_hw = memory;
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return memory->alloc;
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}
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void
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hw_free (struct hw *me,
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void *alloc)
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{
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struct hw_alloc_data **memory;
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for (memory = &me->alloc_of_hw;
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*memory != NULL;
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memory = &(*memory)->next)
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{
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if ((*memory)->alloc == alloc)
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{
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struct hw_alloc_data *die = (*memory);
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(*memory) = die->next;
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free (die->alloc);
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free (die);
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return;
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}
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}
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hw_abort (me, "free of memory not belonging to a device");
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}
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