kldstat.c revision 113936 
1/*-
2 * Copyright (c) 1997 Doug Rabson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#ifndef lint
28static const char rcsid[] =
29  "$FreeBSD: head/sbin/kldstat/kldstat.c 113936 2003-04-23 20:33:57Z johan $";
30#endif /* not lint */
31
32#include <err.h>
33#include <stdint.h>
34#include <stdio.h>
35#include <stdlib.h>
36#include <unistd.h>
37#include <sys/types.h>
38#include <sys/param.h>
39#include <sys/module.h>
40#include <sys/linker.h>
41
42#if defined(__alpha__)
43#define	POINTER_WIDTH	18
44#else
45#define	POINTER_WIDTH	10
46#endif
47
48static void
49printmod(int modid)
50{
51    struct module_stat stat;
52
53    stat.version = sizeof(struct module_stat);
54    if (modstat(modid, &stat) < 0)
55	warn("can't stat module id %d", modid);
56    else
57	printf("\t\t%2d %s\n", stat.id, stat.name);
58}
59
60static void printfile(int fileid, int verbose)
61{
62    struct kld_file_stat stat;
63    int modid;
64
65    stat.version = sizeof(struct kld_file_stat);
66    if (kldstat(fileid, &stat) < 0)
67	warn("can't stat file id %d", fileid);
68    else
69	printf("%2d %4d %p %-8jx %s\n",
70	       stat.id, stat.refs, stat.address, (uintmax_t)stat.size,
71	       stat.name);
72
73    if (verbose) {
74	printf("\tContains modules:\n");
75	printf("\t\tId Name\n");
76	for (modid = kldfirstmod(fileid); modid > 0;
77	     modid = modfnext(modid))
78	    printmod(modid);
79    }
80}
81
82static void
83usage(void)
84{
85    fprintf(stderr, "usage: kldstat [-v] [-i id] [-n name]\n");
86    exit(1);
87}
88
89int
90main(int argc, char** argv)
91{
92    int c;
93    int verbose = 0;
94    int fileid = 0;
95    char* filename = NULL;
96
97    while ((c = getopt(argc, argv, "i:n:v")) != -1)
98	switch (c) {
99	case 'i':
100	    fileid = atoi(optarg);
101	    break;
102	case 'n':
103	    filename = optarg;
104	    break;
105	case 'v':
106	    verbose = 1;
107	    break;
108	default:
109	    usage();
110	}
111    argc -= optind;
112    argv += optind;
113
114    if (argc != 0)
115	usage();
116
117    if (filename != NULL) {
118	if ((fileid = kldfind(filename)) < 0)
119	    err(1, "can't find file %s", filename);
120    }
121
122    printf("Id Refs Address%*c Size     Name\n", POINTER_WIDTH - 7, ' ');
123    if (fileid != 0)
124	printfile(fileid, verbose);
125    else
126	for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid))
127	    printfile(fileid, verbose);
128
129    return 0;
130}
131