2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2007-2008 John Birrell (jb@freebsd.org)
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * This file contains BSD shims for Sun's DTrace code.
33 #ifndef _SYS_DTRACE_BSD_H
34 #define _SYS_DTRACE_BSD_H
36 /* Forward definitions: */
44 int dtrace_trap(struct trapframe *, u_int);
47 * The dtrace module handles traps that occur during a DTrace probe.
48 * This type definition is used in the trap handler to provide a
49 * hook for the dtrace module to register its handler with.
51 typedef int (*dtrace_trap_func_t)(struct trapframe *, u_int);
52 extern dtrace_trap_func_t dtrace_trap_func;
55 * A hook which removes active FBT probes before executing the double fault
56 * handler. We want to ensure that DTrace doesn't trigger another trap, which
57 * would result in a reset.
59 typedef void (*dtrace_doubletrap_func_t)(void);
60 extern dtrace_doubletrap_func_t dtrace_doubletrap_func;
62 /* Pid provider hooks */
63 typedef int (*dtrace_pid_probe_ptr_t)(struct reg *);
64 extern dtrace_pid_probe_ptr_t dtrace_pid_probe_ptr;
65 typedef int (*dtrace_return_probe_ptr_t)(struct reg *);
66 extern dtrace_return_probe_ptr_t dtrace_return_probe_ptr;
68 /* Virtual time hook function type. */
69 typedef void (*dtrace_vtime_switch_func_t)(struct thread *);
71 extern int dtrace_vtime_active;
72 extern dtrace_vtime_switch_func_t dtrace_vtime_switch_func;
74 /* The fasttrap module hooks into the fork, exit and exit. */
75 typedef void (*dtrace_fork_func_t)(struct proc *, struct proc *);
76 typedef void (*dtrace_execexit_func_t)(struct proc *);
78 /* Global variable in kern_fork.c */
79 extern dtrace_fork_func_t dtrace_fasttrap_fork;
81 /* Global variable in kern_exec.c */
82 extern dtrace_execexit_func_t dtrace_fasttrap_exec;
84 /* Global variable in kern_exit.c */
85 extern dtrace_execexit_func_t dtrace_fasttrap_exit;
87 /* The dtmalloc provider hooks into malloc. */
88 typedef void (*dtrace_malloc_probe_func_t)(u_int32_t, uintptr_t arg0,
89 uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
91 extern dtrace_malloc_probe_func_t dtrace_malloc_probe;
93 /* dtnfsclient NFSv[34] access cache provider hooks. */
94 typedef void (*dtrace_nfsclient_accesscache_flush_probe_func_t)(uint32_t,
96 extern dtrace_nfsclient_accesscache_flush_probe_func_t
97 dtrace_nfsclient_accesscache_flush_done_probe;
98 extern dtrace_nfsclient_accesscache_flush_probe_func_t
99 dtrace_nfscl_accesscache_flush_done_probe;
101 typedef void (*dtrace_nfsclient_accesscache_get_probe_func_t)(uint32_t,
102 struct vnode *, uid_t, uint32_t);
103 extern dtrace_nfsclient_accesscache_get_probe_func_t
104 dtrace_nfsclient_accesscache_get_hit_probe,
105 dtrace_nfsclient_accesscache_get_miss_probe;
106 extern dtrace_nfsclient_accesscache_get_probe_func_t
107 dtrace_nfscl_accesscache_get_hit_probe,
108 dtrace_nfscl_accesscache_get_miss_probe;
110 typedef void (*dtrace_nfsclient_accesscache_load_probe_func_t)(uint32_t,
111 struct vnode *, uid_t, uint32_t, int);
112 extern dtrace_nfsclient_accesscache_load_probe_func_t
113 dtrace_nfsclient_accesscache_load_done_probe;
114 extern dtrace_nfsclient_accesscache_load_probe_func_t
115 dtrace_nfscl_accesscache_load_done_probe;
117 /* dtnfsclient NFSv[234] attribute cache provider hooks. */
118 typedef void (*dtrace_nfsclient_attrcache_flush_probe_func_t)(uint32_t,
120 extern dtrace_nfsclient_attrcache_flush_probe_func_t
121 dtrace_nfsclient_attrcache_flush_done_probe;
122 extern dtrace_nfsclient_attrcache_flush_probe_func_t
123 dtrace_nfscl_attrcache_flush_done_probe;
125 typedef void (*dtrace_nfsclient_attrcache_get_hit_probe_func_t)(uint32_t,
126 struct vnode *, struct vattr *);
127 extern dtrace_nfsclient_attrcache_get_hit_probe_func_t
128 dtrace_nfsclient_attrcache_get_hit_probe;
129 extern dtrace_nfsclient_attrcache_get_hit_probe_func_t
130 dtrace_nfscl_attrcache_get_hit_probe;
132 typedef void (*dtrace_nfsclient_attrcache_get_miss_probe_func_t)(uint32_t,
134 extern dtrace_nfsclient_attrcache_get_miss_probe_func_t
135 dtrace_nfsclient_attrcache_get_miss_probe;
136 extern dtrace_nfsclient_attrcache_get_miss_probe_func_t
137 dtrace_nfscl_attrcache_get_miss_probe;
139 typedef void (*dtrace_nfsclient_attrcache_load_probe_func_t)(uint32_t,
140 struct vnode *, struct vattr *, int);
141 extern dtrace_nfsclient_attrcache_load_probe_func_t
142 dtrace_nfsclient_attrcache_load_done_probe;
143 extern dtrace_nfsclient_attrcache_load_probe_func_t
144 dtrace_nfscl_attrcache_load_done_probe;
146 /* dtnfsclient NFSv[234] RPC provider hooks. */
147 typedef void (*dtrace_nfsclient_nfs23_start_probe_func_t)(uint32_t,
148 struct vnode *, struct mbuf *, struct ucred *, int);
149 extern dtrace_nfsclient_nfs23_start_probe_func_t
150 dtrace_nfsclient_nfs23_start_probe;
151 extern dtrace_nfsclient_nfs23_start_probe_func_t
152 dtrace_nfscl_nfs234_start_probe;
154 typedef void (*dtrace_nfsclient_nfs23_done_probe_func_t)(uint32_t,
155 struct vnode *, struct mbuf *, struct ucred *, int, int);
156 extern dtrace_nfsclient_nfs23_done_probe_func_t
157 dtrace_nfsclient_nfs23_done_probe;
158 extern dtrace_nfsclient_nfs23_done_probe_func_t
159 dtrace_nfscl_nfs234_done_probe;
162 * Functions which allow the dtrace module to check that the kernel
163 * hooks have been compiled with sufficient space for it's private
166 size_t kdtrace_proc_size(void);
167 size_t kdtrace_thread_size(void);
170 * OpenSolaris compatible time functions returning nanoseconds.
171 * On OpenSolaris these return hrtime_t which we define as uint64_t.
173 uint64_t dtrace_gethrtime(void);
174 uint64_t dtrace_gethrestime(void);
176 #endif /* _SYS_DTRACE_BSD_H */