/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1994, by Sun Microsytems, Inc.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Function to allocate memory in target process (used by combinations).
*/
#ifndef DEBUG
#define NDEBUG 1
#endif
#include <assert.h>
#include "tnfctl_int.h"
#include "prb_internals.h"
#include "dbg.h"
/*
* _tnfctl_targmem_alloc() - allocates memory in the target process.
*/
tnfctl_errcode_t
_tnfctl_targmem_alloc(tnfctl_handle_t *hndl, size_t size, uintptr_t *addr_p)
{
int miscstat;
tnf_memseg_t memseg;
assert(hndl->memseg_p != NULL);
*addr_p = NULL;
/* read the memseg block from the target process */
miscstat = hndl->p_read(hndl->proc_p, hndl->memseg_p, &memseg,
sizeof (memseg));
if (miscstat)
return (TNFCTL_ERR_INTERNAL);
/* if there is memory left, allocate it */
if ((memseg.min_p + memseg.i_reqsz) <= (memseg.max_p - size)) {
memseg.max_p -= size;
miscstat = hndl->p_write(hndl->proc_p, hndl->memseg_p,
&memseg, sizeof (memseg));
if (miscstat)
return (TNFCTL_ERR_INTERNAL);
*addr_p = (uintptr_t) memseg.max_p;
DBG_TNF_PROBE_2(_tnfctl_targmem_alloc_1, "libtnfctl",
"sunw%verbosity 3",
tnf_long, size_allocated, size,
tnf_opaque, at_location, *addr_p);
return (TNFCTL_ERR_NONE);
} else {
return (TNFCTL_ERR_INTERNAL);
}
}