dmake: do not set MAKEFLAGS=k
[unleashed/tickless.git] / usr / src / lib / libumem / common / init_lib.c
blobdd5500a13ccd2f5f14c4e04cc5692e06954b505f
1 /*
2 * CDDL HEADER START
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
19 * CDDL HEADER END
23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
27 #pragma ident "%Z%%M% %I% %E% SMI"
30 * Initialization routines for the library version of libumem.
33 #include "umem_base.h"
34 #include "vmem_base.h"
35 #include <unistd.h>
36 #include <dlfcn.h>
38 void
39 vmem_heap_init(void)
41 void *handle = dlopen("libmapmalloc.so.1", RTLD_NOLOAD);
43 if (handle != NULL) {
44 log_message("sbrk backend disabled\n");
45 vmem_backend = VMEM_BACKEND_MMAP;
48 if ((vmem_backend & VMEM_BACKEND_MMAP) != 0) {
49 vmem_backend = VMEM_BACKEND_MMAP;
50 (void) vmem_mmap_arena(NULL, NULL);
51 } else {
52 vmem_backend = VMEM_BACKEND_SBRK;
53 (void) vmem_sbrk_arena(NULL, NULL);
57 /*ARGSUSED*/
58 void
59 umem_type_init(caddr_t start, size_t len, size_t pgsize)
61 pagesize = _sysconf(_SC_PAGESIZE);
64 int
65 umem_get_max_ncpus(void)
67 if (thr_main() != -1)
68 return (2 * sysconf(_SC_NPROCESSORS_ONLN));
69 else
70 return (1);