xref: /freebsd/cddl/contrib/opensolaris/lib/libctf/common/ctf_subr.c (revision 5ae59dec60e3815b621ae87f74a377cf3449ca55)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <ctf_impl.h>
30 #include <sys/mman.h>
31 #include <stdarg.h>
32 
33 void *
34 ctf_data_alloc(size_t size)
35 {
36 	return (mmap(NULL, size, PROT_READ | PROT_WRITE,
37 	    MAP_PRIVATE | MAP_ANON, -1, 0));
38 }
39 
40 void
41 ctf_data_free(void *buf, size_t size)
42 {
43 	(void) munmap(buf, size);
44 }
45 
46 void
47 ctf_data_protect(void *buf, size_t size)
48 {
49 	(void) mprotect(buf, size, PROT_READ);
50 }
51 
52 void *
53 ctf_alloc(size_t size)
54 {
55 	return (malloc(size));
56 }
57 
58 /*ARGSUSED*/
59 void
60 ctf_free(void *buf, __unused size_t size)
61 {
62 	free(buf);
63 }
64 
65 const char *
66 ctf_strerror(int err)
67 {
68 	return ((const char *) strerror(err));
69 }
70 
71 /*PRINTFLIKE1*/
72 void
73 ctf_dprintf(const char *format, ...)
74 {
75 	if (_libctf_debug) {
76 		va_list alist;
77 
78 		va_start(alist, format);
79 		(void) fputs("libctf DEBUG: ", stderr);
80 		(void) vfprintf(stderr, format, alist);
81 		va_end(alist);
82 	}
83 }
84