4 * cc -I/usr/src/sys vmobjinfo.c -o /usr/local/bin/vmobjinfo -lkvm
6 * Dump all vm_object's in the system
8 * Copyright (c) 2010 The DragonFly Project. All rights reserved.
10 * This code is derived from software contributed to The DragonFly Project
11 * by Matthew Dillon <dillon@backplane.com>
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in
21 * the documentation and/or other materials provided with the
23 * 3. Neither the name of The DragonFly Project nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific, prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
31 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
32 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
35 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
36 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
37 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #define _KERNEL_STRUCTURES
42 #include <sys/param.h>
44 #include <sys/malloc.h>
45 #include <sys/signalvar.h>
46 #include <sys/namecache.h>
47 #include <sys/mount.h>
48 #include <sys/vnode.h>
52 #include <vm/vm_page.h>
53 #include <vm/vm_kern.h>
54 #include <vm/vm_object.h>
55 #include <vm/swap_pager.h>
56 #include <vm/vnode_pager.h>
58 #include <vfs/ufs/quota.h>
59 #include <vfs/ufs/inode.h>
69 TAILQ_HEAD(object_q, vm_object);
72 { "_vm_object_list" },
76 static void scan_vmobjs(kvm_t *kd, struct object_q *obj_list);
77 static void kkread(kvm_t *kd, u_long addr, void *buf, size_t nbytes);
80 main(int ac, char **av)
82 struct object_q obj_list;
86 const char *corefile = NULL;
87 const char *sysfile = NULL;
89 while ((ch = getopt(ac, av, "M:N:")) != -1) {
98 fprintf(stderr, "%s [-M core] [-N system]\n", av[0]);
103 if ((kd = kvm_open(sysfile, corefile, NULL, O_RDONLY, "kvm:")) == NULL) {
107 if (kvm_nlist(kd, Nl) != 0) {
111 kkread(kd, Nl[0].n_value, &obj_list, sizeof(obj_list));
112 scan_vmobjs(kd, &obj_list);
117 scan_vmobjs(kvm_t *kd, struct object_q *obj_list)
119 struct vm_object *op;
120 struct vm_object obj;
122 op = TAILQ_FIRST(obj_list);
124 kkread(kd, (long)op, &obj, sizeof(obj));
126 printf("%p type=%d size=%016jx handle=%p swblocks=%d\n",
127 op, obj.type, (intmax_t)obj.size, obj.handle,
130 op = TAILQ_NEXT(&obj, object_list);
135 kkread(kvm_t *kd, u_long addr, void *buf, size_t nbytes)
137 if (kvm_read(kd, addr, buf, nbytes) != nbytes) {