1*0Sstevel@tonic-gate /* 2*0Sstevel@tonic-gate * CDDL HEADER START 3*0Sstevel@tonic-gate * 4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 7*0Sstevel@tonic-gate * with the License. 8*0Sstevel@tonic-gate * 9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 11*0Sstevel@tonic-gate * See the License for the specific language governing permissions 12*0Sstevel@tonic-gate * and limitations under the License. 13*0Sstevel@tonic-gate * 14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 19*0Sstevel@tonic-gate * 20*0Sstevel@tonic-gate * CDDL HEADER END 21*0Sstevel@tonic-gate */ 22*0Sstevel@tonic-gate /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* 30*0Sstevel@tonic-gate * Initialization routines for the library version of libumem. 31*0Sstevel@tonic-gate */ 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #include "umem_base.h" 34*0Sstevel@tonic-gate #include "vmem_base.h" 35*0Sstevel@tonic-gate 36*0Sstevel@tonic-gate #include <unistd.h> 37*0Sstevel@tonic-gate #include <dlfcn.h> 38*0Sstevel@tonic-gate 39*0Sstevel@tonic-gate void 40*0Sstevel@tonic-gate vmem_heap_init(void) 41*0Sstevel@tonic-gate { 42*0Sstevel@tonic-gate void *handle = dlopen("libmapmalloc.so.1", RTLD_NOLOAD); 43*0Sstevel@tonic-gate 44*0Sstevel@tonic-gate if (handle != NULL) { 45*0Sstevel@tonic-gate log_message("sbrk backend disabled\n"); 46*0Sstevel@tonic-gate vmem_backend = VMEM_BACKEND_MMAP; 47*0Sstevel@tonic-gate } 48*0Sstevel@tonic-gate 49*0Sstevel@tonic-gate if ((vmem_backend & VMEM_BACKEND_MMAP) != 0) { 50*0Sstevel@tonic-gate vmem_backend = VMEM_BACKEND_MMAP; 51*0Sstevel@tonic-gate (void) vmem_mmap_arena(NULL, NULL); 52*0Sstevel@tonic-gate } else { 53*0Sstevel@tonic-gate vmem_backend = VMEM_BACKEND_SBRK; 54*0Sstevel@tonic-gate (void) vmem_sbrk_arena(NULL, NULL); 55*0Sstevel@tonic-gate } 56*0Sstevel@tonic-gate } 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate /*ARGSUSED*/ 59*0Sstevel@tonic-gate void 60*0Sstevel@tonic-gate umem_type_init(caddr_t start, size_t len, size_t pgsize) 61*0Sstevel@tonic-gate { 62*0Sstevel@tonic-gate pagesize = _sysconf(_SC_PAGESIZE); 63*0Sstevel@tonic-gate } 64*0Sstevel@tonic-gate 65*0Sstevel@tonic-gate int 66*0Sstevel@tonic-gate umem_get_max_ncpus(void) 67*0Sstevel@tonic-gate { 68*0Sstevel@tonic-gate if (thr_main() != -1) 69*0Sstevel@tonic-gate return (2 * sysconf(_SC_NPROCESSORS_ONLN)); 70*0Sstevel@tonic-gate else 71*0Sstevel@tonic-gate return (1); 72*0Sstevel@tonic-gate } 73