2 * Copyright (c) 2007-2008 John Birrell (jb@freebsd.org)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
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.
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
28 * This file contains BSD shims for Sun's DTrace code.
31 #ifndef _SYS_DTRACE_BSD_H
32 #define _SYS_DTRACE_BSD_H
34 /* Forward definitions: */
45 * Cyclic clock function type definition used to hook the cyclic
46 * subsystem into the appropriate timer interrupt.
48 typedef void (*cyclic_clock_func_t)(struct trapframe *);
49 extern cyclic_clock_func_t cyclic_clock_func;
51 void clocksource_cyc_set(const struct bintime *t);
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.
58 typedef int (*dtrace_trap_func_t)(struct trapframe *, u_int);
60 int dtrace_trap(struct trapframe *, u_int);
62 extern dtrace_trap_func_t dtrace_trap_func;
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);
68 /* Global variables in trap.c */
69 extern dtrace_invop_func_t dtrace_invop_func;
70 extern dtrace_doubletrap_func_t dtrace_doubletrap_func;
72 /* Pid provider hooks */
73 typedef int (*dtrace_pid_probe_ptr_t)(struct reg *);
74 extern dtrace_pid_probe_ptr_t dtrace_pid_probe_ptr;
75 typedef int (*dtrace_return_probe_ptr_t)(struct reg *);
76 extern dtrace_return_probe_ptr_t dtrace_return_probe_ptr;
78 /* Virtual time hook function type. */
79 typedef void (*dtrace_vtime_switch_func_t)(struct thread *);
81 extern int dtrace_vtime_active;
82 extern dtrace_vtime_switch_func_t dtrace_vtime_switch_func;
84 /* The fasttrap module hooks into the fork, exit and exit. */
85 typedef void (*dtrace_fork_func_t)(struct proc *, struct proc *);
86 typedef void (*dtrace_execexit_func_t)(struct proc *);
88 /* Global variable in kern_fork.c */
89 extern dtrace_fork_func_t dtrace_fasttrap_fork;
91 /* Global variable in kern_exec.c */
92 extern dtrace_execexit_func_t dtrace_fasttrap_exec;
94 /* Global variable in kern_exit.c */
95 extern dtrace_execexit_func_t dtrace_fasttrap_exit;
97 /* The dtmalloc provider hooks into malloc. */
98 typedef void (*dtrace_malloc_probe_func_t)(u_int32_t, uintptr_t arg0,
99 uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
101 extern dtrace_malloc_probe_func_t dtrace_malloc_probe;
103 /* dtnfsclient NFSv[34] access cache provider hooks. */
104 typedef void (*dtrace_nfsclient_accesscache_flush_probe_func_t)(uint32_t,
106 extern dtrace_nfsclient_accesscache_flush_probe_func_t
107 dtrace_nfsclient_accesscache_flush_done_probe;
108 extern dtrace_nfsclient_accesscache_flush_probe_func_t
109 dtrace_nfscl_accesscache_flush_done_probe;
111 typedef void (*dtrace_nfsclient_accesscache_get_probe_func_t)(uint32_t,
112 struct vnode *, uid_t, uint32_t);
113 extern dtrace_nfsclient_accesscache_get_probe_func_t
114 dtrace_nfsclient_accesscache_get_hit_probe,
115 dtrace_nfsclient_accesscache_get_miss_probe;
116 extern dtrace_nfsclient_accesscache_get_probe_func_t
117 dtrace_nfscl_accesscache_get_hit_probe,
118 dtrace_nfscl_accesscache_get_miss_probe;
120 typedef void (*dtrace_nfsclient_accesscache_load_probe_func_t)(uint32_t,
121 struct vnode *, uid_t, uint32_t, int);
122 extern dtrace_nfsclient_accesscache_load_probe_func_t
123 dtrace_nfsclient_accesscache_load_done_probe;
124 extern dtrace_nfsclient_accesscache_load_probe_func_t
125 dtrace_nfscl_accesscache_load_done_probe;
127 /* dtnfsclient NFSv[234] attribute cache provider hooks. */
128 typedef void (*dtrace_nfsclient_attrcache_flush_probe_func_t)(uint32_t,
130 extern dtrace_nfsclient_attrcache_flush_probe_func_t
131 dtrace_nfsclient_attrcache_flush_done_probe;
132 extern dtrace_nfsclient_attrcache_flush_probe_func_t
133 dtrace_nfscl_attrcache_flush_done_probe;
135 typedef void (*dtrace_nfsclient_attrcache_get_hit_probe_func_t)(uint32_t,
136 struct vnode *, struct vattr *);
137 extern dtrace_nfsclient_attrcache_get_hit_probe_func_t
138 dtrace_nfsclient_attrcache_get_hit_probe;
139 extern dtrace_nfsclient_attrcache_get_hit_probe_func_t
140 dtrace_nfscl_attrcache_get_hit_probe;
142 typedef void (*dtrace_nfsclient_attrcache_get_miss_probe_func_t)(uint32_t,
144 extern dtrace_nfsclient_attrcache_get_miss_probe_func_t
145 dtrace_nfsclient_attrcache_get_miss_probe;
146 extern dtrace_nfsclient_attrcache_get_miss_probe_func_t
147 dtrace_nfscl_attrcache_get_miss_probe;
149 typedef void (*dtrace_nfsclient_attrcache_load_probe_func_t)(uint32_t,
150 struct vnode *, struct vattr *, int);
151 extern dtrace_nfsclient_attrcache_load_probe_func_t
152 dtrace_nfsclient_attrcache_load_done_probe;
153 extern dtrace_nfsclient_attrcache_load_probe_func_t
154 dtrace_nfscl_attrcache_load_done_probe;
156 /* dtnfsclient NFSv[234] RPC provider hooks. */
157 typedef void (*dtrace_nfsclient_nfs23_start_probe_func_t)(uint32_t,
158 struct vnode *, struct mbuf *, struct ucred *, int);
159 extern dtrace_nfsclient_nfs23_start_probe_func_t
160 dtrace_nfsclient_nfs23_start_probe;
161 extern dtrace_nfsclient_nfs23_start_probe_func_t
162 dtrace_nfscl_nfs234_start_probe;
164 typedef void (*dtrace_nfsclient_nfs23_done_probe_func_t)(uint32_t,
165 struct vnode *, struct mbuf *, struct ucred *, int, int);
166 extern dtrace_nfsclient_nfs23_done_probe_func_t
167 dtrace_nfsclient_nfs23_done_probe;
168 extern dtrace_nfsclient_nfs23_done_probe_func_t
169 dtrace_nfscl_nfs234_done_probe;
171 /* IO Provider hooks, really hook into devstat */
172 typedef void (*dtrace_io_start_probe_func_t)(uint32_t, struct bio *,
174 extern dtrace_io_start_probe_func_t dtrace_io_start_probe;
176 typedef void (*dtrace_io_done_probe_func_t)(uint32_t, struct bio *,
178 extern dtrace_io_done_probe_func_t dtrace_io_done_probe;
180 typedef void (*dtrace_io_wait_start_probe_func_t)(uint32_t, uintptr_t *,
182 extern dtrace_io_wait_start_probe_func_t dtrace_io_wait_start_probe;
184 typedef void (*dtrace_io_wait_done_probe_func_t)(uint32_t, uintptr_t *,
186 extern dtrace_io_wait_done_probe_func_t dtrace_io_wait_done_probe;
189 * Functions which allow the dtrace module to check that the kernel
190 * hooks have been compiled with sufficient space for it's private
193 size_t kdtrace_proc_size(void);
194 size_t kdtrace_thread_size(void);
197 * OpenSolaris compatible time functions returning nanoseconds.
198 * On OpenSolaris these return hrtime_t which we define as uint64_t.
200 uint64_t dtrace_gethrtime(void);
201 uint64_t dtrace_gethrestime(void);
203 #endif /* _SYS_DTRACE_BSD_H */