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 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <err.h> 31 #include <stdint.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <unistd.h> 35 #include <sys/types.h> 36 #include <sys/param.h> 37 #include <sys/module.h> 38 #include <sys/linker.h> 39 40 #define POINTER_WIDTH ((int)(sizeof(void *) * 2 + 2)) 41 42 static void 43 printmod(int modid) 44 { 45 struct module_stat stat; 46 47 stat.version = sizeof(struct module_stat); 48 if (modstat(modid, &stat) < 0) 49 warn("can't stat module id %d", modid); 50 else 51 printf("\t\t%2d %s\n", stat.id, stat.name); 52 } 53 54 static void printfile(int fileid, int verbose) 55 { 56 struct kld_file_stat stat; 57 int modid; 58 59 stat.version = sizeof(struct kld_file_stat); 60 if (kldstat(fileid, &stat) < 0) 61 warn("can't stat file id %d", fileid); 62 else 63 printf("%2d %4d %p %-8jx %s\n", 64 stat.id, stat.refs, stat.address, (uintmax_t)stat.size, 65 stat.name); 66 67 if (verbose) { 68 printf("\tContains modules:\n"); 69 printf("\t\tId Name\n"); 70 for (modid = kldfirstmod(fileid); modid > 0; 71 modid = modfnext(modid)) 72 printmod(modid); 73 } 74 } 75 76 static void 77 usage(void) 78 { 79 fprintf(stderr, "usage: kldstat [-v] [-i id] [-n name] [-m name]\n"); 80 exit(1); 81 } 82 83 int 84 main(int argc, char** argv) 85 { 86 int c; 87 int verbose = 0; 88 int fileid = 0; 89 char* filename = NULL; 90 char* modname = NULL; 91 char* p; 92 93 while ((c = getopt(argc, argv, "i:m:n:v")) != -1) 94 switch (c) { 95 case 'i': 96 fileid = (int)strtoul(optarg, &p, 10); 97 if (*p != '\0') 98 usage(); 99 break; 100 case 'm': 101 modname = optarg; 102 break; 103 case 'n': 104 filename = optarg; 105 break; 106 case 'v': 107 verbose = 1; 108 break; 109 default: 110 usage(); 111 } 112 argc -= optind; 113 argv += optind; 114 115 if (argc != 0) 116 usage(); 117 118 if (modname != NULL) { 119 int modid; 120 struct module_stat stat; 121 122 if ((modid = modfind(modname)) < 0) 123 err(1, "can't find module %s", modname); 124 125 stat.version = sizeof(struct module_stat); 126 if (modstat(modid, &stat) < 0) 127 warn("can't stat module id %d", modid); 128 else { 129 printf("Id Refs Name\n"); 130 printf("%3d %4d %s\n", stat.id, stat.refs, stat.name); 131 } 132 133 return 0; 134 } 135 136 if (filename != NULL) { 137 if ((fileid = kldfind(filename)) < 0) 138 err(1, "can't find file %s", filename); 139 } 140 141 printf("Id Refs Address%*c Size Name\n", POINTER_WIDTH - 7, ' '); 142 if (fileid != 0) 143 printfile(fileid, verbose); 144 else 145 for (fileid = kldnext(0); fileid > 0; fileid = kldnext(fileid)) 146 printfile(fileid, verbose); 147 148 return 0; 149 } 150