FreeBSD/Linux Kernel Cross Reference
sys/sys/dtrace_bsd.h
1 /*-
2 * Copyright (c) 2007-2008 John Birrell (jb@freebsd.org)
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 * $FreeBSD: releng/9.2/sys/sys/dtrace_bsd.h 243989 2012-12-07 19:06:40Z gnn $
27 *
28 * This file contains BSD shims for Sun's DTrace code.
29 */
30
31 #ifndef _SYS_DTRACE_BSD_H
32 #define _SYS_DTRACE_BSD_H
33
34 /* Forward definitions: */
35 struct mbuf;
36 struct trapframe;
37 struct thread;
38 struct vattr;
39 struct vnode;
40 struct reg;
41 struct devstat;
42 struct bio;
43
44 /*
45 * Cyclic clock function type definition used to hook the cyclic
46 * subsystem into the appropriate timer interrupt.
47 */
48 typedef void (*cyclic_clock_func_t)(struct trapframe *);
49 extern cyclic_clock_func_t cyclic_clock_func;
50
51 void clocksource_cyc_set(const struct bintime *t);
52
53 /*
54 * The dtrace module handles traps that occur during a DTrace probe.
55 * This type definition is used in the trap handler to provide a
56 * hook for the dtrace module to register it's handler with.
57 */
58 typedef int (*dtrace_trap_func_t)(struct trapframe *, u_int);
59
60 int dtrace_trap(struct trapframe *, u_int);
61
62 extern dtrace_trap_func_t dtrace_trap_func;
63
64 /* Used by the machine dependent trap() code. */
65 typedef int (*dtrace_invop_func_t)(uintptr_t, uintptr_t *, uintptr_t);
66 typedef void (*dtrace_doubletrap_func_t)(void);
67
68 /* Global variables in trap.c */
69 extern dtrace_invop_func_t dtrace_invop_func;
70 extern dtrace_doubletrap_func_t dtrace_doubletrap_func;
71
72 /* Pid provider hooks */
73 typedef int (*dtrace_fasttrap_probe_ptr_t)(struct reg *);
74 extern dtrace_fasttrap_probe_ptr_t dtrace_fasttrap_probe_ptr;
75 typedef int (*dtrace_pid_probe_ptr_t)(struct reg *);
76 extern dtrace_pid_probe_ptr_t dtrace_pid_probe_ptr;
77 typedef int (*dtrace_return_probe_ptr_t)(struct reg *);
78 extern dtrace_return_probe_ptr_t dtrace_return_probe_ptr;
79
80 /* Virtual time hook function type. */
81 typedef void (*dtrace_vtime_switch_func_t)(struct thread *);
82
83 extern int dtrace_vtime_active;
84 extern dtrace_vtime_switch_func_t dtrace_vtime_switch_func;
85
86 /* The fasttrap module hooks into the fork, exit and exit. */
87 typedef void (*dtrace_fork_func_t)(struct proc *, struct proc *);
88 typedef void (*dtrace_execexit_func_t)(struct proc *);
89
90 /* Global variable in kern_fork.c */
91 extern dtrace_fork_func_t dtrace_fasttrap_fork;
92
93 /* Global variable in kern_exec.c */
94 extern dtrace_execexit_func_t dtrace_fasttrap_exec;
95
96 /* Global variable in kern_exit.c */
97 extern dtrace_execexit_func_t dtrace_fasttrap_exit;
98
99 /* The dtmalloc provider hooks into malloc. */
100 typedef void (*dtrace_malloc_probe_func_t)(u_int32_t, uintptr_t arg0,
101 uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
102
103 extern dtrace_malloc_probe_func_t dtrace_malloc_probe;
104
105 /* dtnfsclient NFSv[34] access cache provider hooks. */
106 typedef void (*dtrace_nfsclient_accesscache_flush_probe_func_t)(uint32_t,
107 struct vnode *);
108 extern dtrace_nfsclient_accesscache_flush_probe_func_t
109 dtrace_nfsclient_accesscache_flush_done_probe;
110 extern dtrace_nfsclient_accesscache_flush_probe_func_t
111 dtrace_nfscl_accesscache_flush_done_probe;
112
113 typedef void (*dtrace_nfsclient_accesscache_get_probe_func_t)(uint32_t,
114 struct vnode *, uid_t, uint32_t);
115 extern dtrace_nfsclient_accesscache_get_probe_func_t
116 dtrace_nfsclient_accesscache_get_hit_probe,
117 dtrace_nfsclient_accesscache_get_miss_probe;
118 extern dtrace_nfsclient_accesscache_get_probe_func_t
119 dtrace_nfscl_accesscache_get_hit_probe,
120 dtrace_nfscl_accesscache_get_miss_probe;
121
122 typedef void (*dtrace_nfsclient_accesscache_load_probe_func_t)(uint32_t,
123 struct vnode *, uid_t, uint32_t, int);
124 extern dtrace_nfsclient_accesscache_load_probe_func_t
125 dtrace_nfsclient_accesscache_load_done_probe;
126 extern dtrace_nfsclient_accesscache_load_probe_func_t
127 dtrace_nfscl_accesscache_load_done_probe;
128
129 /* dtnfsclient NFSv[234] attribute cache provider hooks. */
130 typedef void (*dtrace_nfsclient_attrcache_flush_probe_func_t)(uint32_t,
131 struct vnode *);
132 extern dtrace_nfsclient_attrcache_flush_probe_func_t
133 dtrace_nfsclient_attrcache_flush_done_probe;
134 extern dtrace_nfsclient_attrcache_flush_probe_func_t
135 dtrace_nfscl_attrcache_flush_done_probe;
136
137 typedef void (*dtrace_nfsclient_attrcache_get_hit_probe_func_t)(uint32_t,
138 struct vnode *, struct vattr *);
139 extern dtrace_nfsclient_attrcache_get_hit_probe_func_t
140 dtrace_nfsclient_attrcache_get_hit_probe;
141 extern dtrace_nfsclient_attrcache_get_hit_probe_func_t
142 dtrace_nfscl_attrcache_get_hit_probe;
143
144 typedef void (*dtrace_nfsclient_attrcache_get_miss_probe_func_t)(uint32_t,
145 struct vnode *);
146 extern dtrace_nfsclient_attrcache_get_miss_probe_func_t
147 dtrace_nfsclient_attrcache_get_miss_probe;
148 extern dtrace_nfsclient_attrcache_get_miss_probe_func_t
149 dtrace_nfscl_attrcache_get_miss_probe;
150
151 typedef void (*dtrace_nfsclient_attrcache_load_probe_func_t)(uint32_t,
152 struct vnode *, struct vattr *, int);
153 extern dtrace_nfsclient_attrcache_load_probe_func_t
154 dtrace_nfsclient_attrcache_load_done_probe;
155 extern dtrace_nfsclient_attrcache_load_probe_func_t
156 dtrace_nfscl_attrcache_load_done_probe;
157
158 /* dtnfsclient NFSv[234] RPC provider hooks. */
159 typedef void (*dtrace_nfsclient_nfs23_start_probe_func_t)(uint32_t,
160 struct vnode *, struct mbuf *, struct ucred *, int);
161 extern dtrace_nfsclient_nfs23_start_probe_func_t
162 dtrace_nfsclient_nfs23_start_probe;
163 extern dtrace_nfsclient_nfs23_start_probe_func_t
164 dtrace_nfscl_nfs234_start_probe;
165
166 typedef void (*dtrace_nfsclient_nfs23_done_probe_func_t)(uint32_t,
167 struct vnode *, struct mbuf *, struct ucred *, int, int);
168 extern dtrace_nfsclient_nfs23_done_probe_func_t
169 dtrace_nfsclient_nfs23_done_probe;
170 extern dtrace_nfsclient_nfs23_done_probe_func_t
171 dtrace_nfscl_nfs234_done_probe;
172
173 /* IO Provider hooks, really hook into devstat */
174 typedef void (*dtrace_io_start_probe_func_t)(uint32_t, struct bio *,
175 struct devstat *);
176 extern dtrace_io_start_probe_func_t dtrace_io_start_probe;
177
178 typedef void (*dtrace_io_done_probe_func_t)(uint32_t, struct bio *,
179 struct devstat *);
180 extern dtrace_io_done_probe_func_t dtrace_io_done_probe;
181
182 typedef void (*dtrace_io_wait_start_probe_func_t)(uint32_t, uintptr_t *,
183 struct devstat *);
184 extern dtrace_io_wait_start_probe_func_t dtrace_io_wait_start_probe;
185
186 typedef void (*dtrace_io_wait_done_probe_func_t)(uint32_t, uintptr_t *,
187 struct devstat *);
188 extern dtrace_io_wait_done_probe_func_t dtrace_io_wait_done_probe;
189
190 /*
191 * Functions which allow the dtrace module to check that the kernel
192 * hooks have been compiled with sufficient space for it's private
193 * structures.
194 */
195 size_t kdtrace_proc_size(void);
196 size_t kdtrace_thread_size(void);
197
198 /*
199 * OpenSolaris compatible time functions returning nanoseconds.
200 * On OpenSolaris these return hrtime_t which we define as uint64_t.
201 */
202 uint64_t dtrace_gethrtime(void);
203 uint64_t dtrace_gethrestime(void);
204
205 #endif /* _SYS_DTRACE_BSD_H */
Cache object: 97860a639089fac5656d82124e9778a0
|