99 lines
2.2 KiB
C
99 lines
2.2 KiB
C
/* Hardware memory allocator.
|
|
Copyright (C) 1998 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 2, 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, write to the Free Software Foundation, Inc.,
|
|
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
|
|
#include "sim-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)
|
|
{
|
|
if (me->alloc_of_hw != NULL)
|
|
hw_abort (me, "hw-alloc botch");
|
|
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");
|
|
}
|