kldstat.c revision 62327
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 62327 2000-07-01 07:57:28Z ps $"; 30#endif /* not lint */ 31 32#include <err.h> 33#include <stdio.h> 34#include <stdlib.h> 35#include <unistd.h> 36#include <sys/types.h> 37#include <sys/param.h> 38#include <sys/module.h> 39#include <sys/linker.h> 40 41#if defined(__alpha__) 42#define POINTER_WIDTH 18 43#else 44#define POINTER_WIDTH 10 45#endif 46 47static void 48printmod(int modid) 49{ 50 struct module_stat stat; 51 52 stat.version = sizeof(struct module_stat); 53 if (modstat(modid, &stat) < 0) 54 warn("can't stat module id %d", modid); 55 else 56 printf("\t\t%2d %s\n", stat.id, stat.name); 57} 58 59static void printfile(int fileid, int verbose) 60{ 61 struct kld_file_stat stat; 62 int modid; 63 64 stat.version = sizeof(struct kld_file_stat); 65 if (kldstat(fileid, &stat) < 0) 66 warn("can't stat file id %d", fileid); 67 else 68 printf("%2d %4d %p %-8x %s\n", 69 stat.id, stat.refs, stat.address, stat.size, stat.name); 70 71 if (verbose) { 72 printf("\tContains modules:\n"); 73 printf("\t\tId Name\n"); 74 for (modid = kldfirstmod(fileid); modid > 0; 75 modid = modfnext(modid)) 76 printmod(modid); 77 } 78} 79 80static void 81usage(void) 82{ 83 fprintf(stderr, "usage: kldstat [-v] [-i id] [-n name]\n"); 84 exit(1); 85} 86 87int 88main(int argc, char** argv) 89{ 90 int c; 91 int verbose = 0; 92 int fileid = 0; 93 char* filename = 0; 94 95 while ((c = getopt(argc, argv, "i:n:v")) != -1) 96 switch (c) { 97 case 'i': 98 fileid = atoi(optarg); 99 break; 100 case 'n': 101 filename = optarg; 102 break; 103 case 'v': 104 verbose = 1; 105 break; 106 default: 107 usage(); 108 } 109 argc -= optind; 110 argv += optind; 111 112 if (argc != 0) 113 usage(); 114 115 if (filename) { 116 if ((fileid = kldfind(filename)) < 0) 117 err(1, "can't find file %s", filename); 118 } 119 120 printf("Id Refs Address%*c Size Name\n", POINTER_WIDTH - 7, ' '); 121 if (fileid) 122 printfile(fileid, verbose); 123 else 124 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) 125 printfile(fileid, verbose); 126 127 return 0; 128} 129