pmap.h revision 1.14 1 /* $NetBSD: pmap.h,v 1.14 2022/08/21 07:46:52 mlelstv Exp $ */
2
3 /*
4 * Copyright (c) 2002, 2003, 2020 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Brown.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32 /*
33 * only pull in the headers once. if we attempt to pull them in
34 * again, we get namespace collisions on some structures, and we don't
35 * want to redefine some of them since it will affect the layout of
36 * the struct kbit.
37 */
38 #ifndef PMAP_HEADERS
39
40 #include <err.h>
41 #include <kvm.h>
42 #include <stddef.h>
43 #include <stdlib.h>
44
45 #include <sys/types.h>
46 #include <sys/param.h>
47 #include <sys/time.h>
48 #include <sys/vnode.h>
49 #include <sys/vnode_impl.h>
50 #define __EXPOSE_MOUNT
51 #include <sys/mount.h>
52 #include <sys/uio.h>
53 #define __NAMECACHE_PRIVATE
54 #include <sys/namei.h>
55 #include <sys/sysctl.h>
56
57 #include <uvm/uvm.h>
58 #include <uvm/uvm_device.h>
59
60 #include <ufs/ufs/inode.h>
61 #undef doff_t
62 #undef IN_ACCESS
63 #include <isofs/cd9660/iso.h>
64 #include <isofs/cd9660/cd9660_node.h>
65
66 #define PMAP_HEADERS
67 #endif /* PMAP_HEADERS */
68
69 /*
70 * if the definition of the kbit structure (and the accessor macros)
71 * is already established, don't redefine it.
72 */
73 #ifndef struct_kbit
74
75 /*
76 * stolen (and munged) from #include <uvm/uvm_object.h>
77 */
78 #define UVM_OBJ_IS_VNODE(uobj) ((uobj)->pgops == uvm_vnodeops)
79 #define UVM_OBJ_IS_AOBJ(uobj) ((uobj)->pgops == aobj_pager)
80 #define UVM_OBJ_IS_DEVICE(uobj) ((uobj)->pgops == uvm_deviceops)
81 #define UVM_OBJ_IS_UBCPAGER(uobj) ((uobj)->pgops == ubc_pager)
82
83 /*
84 * stolen from #include <uvm/uvm_amap.h>
85 */
86 #define PPREF_NONE ((int *) -1)
87
88 /* the size of the object in the kernel */
89 #define S(x) ((x)->k_size)
90 /* the address of the object in kernel, two forms */
91 #define A(x) ((x)->k_addr.k_addr_ul)
92 #define P(x) ((x)->k_addr.k_addr_p)
93 /* the data from the kernel */
94 #define D(x,d) (&((x)->k_data.d))
95
96 /* suck the data from the kernel */
97 #define _KDEREFOK(kd, addr, dst, sz) \
98 ((size_t)kvm_read((kd), (addr), (dst), (sz)) == (size_t)(sz))
99 #define _KDEREF(kd, addr, dst, sz) do { \
100 if (!_KDEREFOK((kd), (addr), (dst), (sz))) \
101 errx(1, "reading from kmem failed: %s", kvm_geterr(kd)); \
102 } while (0/*CONSTCOND*/)
103
104 /* suck the data using the structure */
105 #define KDEREFOK(kd, item) _KDEREFOK((kd), A(item), D(item, data), S(item))
106 #define KDEREF(kd, item) _KDEREF((kd), A(item), D(item, data), S(item))
107
108 struct kbit {
109 /*
110 * size of data chunk
111 */
112 size_t k_size;
113
114 /*
115 * something for printf() and something for kvm_read()
116 */
117 union {
118 void *k_addr_p;
119 u_long k_addr_ul;
120 } k_addr;
121
122 /*
123 * where we actually put the "stuff"
124 */
125 union {
126 char data[1];
127 struct vmspace vmspace;
128 struct vm_map vm_map;
129 struct vm_map_entry vm_map_entry;
130 struct vnode vnode;
131 struct uvm_object uvm_object;
132 struct mount mount;
133 struct namecache namecache;
134 struct inode inode;
135 struct iso_node iso_node;
136 struct uvm_device uvm_device;
137 struct vm_amap amap;
138 struct vm_anon anon;
139 } k_data;
140 };
141 #define struct_kbit
142 #endif /* struct_kbit */
143
144 /*
145 * this is the *actual* module interface
146 */
147
148 void process_map(kvm_t *, struct kinfo_proc2 *,
149 struct kbit *, const char *);
150 void dump_vm_map(kvm_t *, struct kinfo_proc2 *,
151 struct kbit *, struct kbit *, const char *);
152 size_t dump_vm_map_list(kvm_t *, struct kinfo_proc2 *,
153 struct kbit *, struct kbit *, struct kbit *);
154 size_t dump_vm_map_tree(kvm_t *, struct kinfo_proc2 *,
155 struct kbit *, struct kbit *, struct kbit *);
156 size_t dump_vm_map_node(kvm_t *, int lvl, struct kinfo_proc2 *,
157 struct kbit *, struct kbit *, struct vm_map_entry *);
158 size_t dump_vm_map_entry(kvm_t *, struct kinfo_proc2 *,
159 struct kbit *, struct kbit *, int);
160
161 void dump_amap(kvm_t *, struct kbit *);
162