2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A
2N/A/*
2N/A * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A#pragma ident "%Z%%M% %I% %E% SMI"
2N/A
2N/A/*
2N/A * Initialization routines for the library version of libumem.
2N/A */
2N/A
2N/A#include "umem_base.h"
2N/A#include "vmem_base.h"
2N/A#include <unistd.h>
2N/A#include <dlfcn.h>
2N/A
2N/Avoid
2N/Avmem_heap_init(void)
2N/A{
2N/A void *handle = dlopen("libmapmalloc.so.1", RTLD_NOLOAD);
2N/A
2N/A if (handle != NULL) {
2N/A log_message("sbrk backend disabled\n");
2N/A vmem_backend = VMEM_BACKEND_MMAP;
2N/A }
2N/A
2N/A if ((vmem_backend & VMEM_BACKEND_MMAP) != 0) {
2N/A vmem_backend = VMEM_BACKEND_MMAP;
2N/A (void) vmem_mmap_arena(NULL, NULL);
2N/A } else {
2N/A vmem_backend = VMEM_BACKEND_SBRK;
2N/A (void) vmem_sbrk_arena(NULL, NULL);
2N/A }
2N/A}
2N/A
2N/A/*ARGSUSED*/
2N/Avoid
2N/Aumem_type_init(caddr_t start, size_t len, size_t pgsize)
2N/A{
2N/A pagesize = _sysconf(_SC_PAGESIZE);
2N/A}
2N/A
2N/Aint
2N/Aumem_get_max_ncpus(void)
2N/A{
2N/A if (thr_main() != -1)
2N/A return (2 * sysconf(_SC_NPROCESSORS_ONLN));
2N/A else
2N/A return (1);
2N/A}