/* * 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 "c_synonyms.h" #include "umem_base.h" #include "vmem_base.h" #include #include 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); }