/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Initialization routines for the library version of libumem.
*/
#include "umem_base.h"
#include "vmem_base.h"
#include <unistd.h>
#include <dlfcn.h>
void
vmem_heap_init(void)
{
void *handle = dlopen("libmapmalloc.so.1", RTLD_NOLOAD);
if (handle != NULL) {
log_message("sbrk backend disabled\n");
vmem_backend = VMEM_BACKEND_MMAP;
}
if ((vmem_backend & VMEM_BACKEND_MMAP) != 0) {
vmem_backend = VMEM_BACKEND_MMAP;
(void) vmem_mmap_arena(NULL, NULL);
} else {
vmem_backend = VMEM_BACKEND_SBRK;
(void) vmem_sbrk_arena(NULL, NULL);
}
}
/*ARGSUSED*/
void
umem_type_init(caddr_t start, size_t len, size_t pgsize)
{
pagesize = _sysconf(_SC_PAGESIZE);
}
int
umem_get_max_ncpus(void)
{
if (thr_main() != -1)
return (2 * sysconf(_SC_NPROCESSORS_ONLN));
else
return (1);
}