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: */
42 * Cyclic clock function type definition used to hook the cyclic
43 * subsystem into the appropriate timer interrupt.
45 typedef void (*cyclic_clock_func_t)(struct trapframe *);
48 * These external variables are actually machine-dependent, so
49 * they might not actually exist.
51 * Defining them here avoids a proliferation of header files.
53 extern cyclic_clock_func_t lapic_cyclic_clock_func[];
56 * The dtrace module handles traps that occur during a DTrace probe.
57 * This type definition is used in the trap handler to provide a
58 * hook for the dtrace module to register it's handler with.
60 typedef int (*dtrace_trap_func_t)(struct trapframe *, u_int);
62 int dtrace_trap(struct trapframe *, u_int);
64 extern dtrace_trap_func_t dtrace_trap_func;
66 /* Used by the machine dependent trap() code. */
67 typedef int (*dtrace_invop_func_t)(uintptr_t, uintptr_t *, uintptr_t);
68 typedef void (*dtrace_doubletrap_func_t)(void);
70 /* Global variables in trap.c */
71 extern dtrace_invop_func_t dtrace_invop_func;
72 extern dtrace_doubletrap_func_t dtrace_doubletrap_func;
74 /* Virtual time hook function type. */
75 typedef void (*dtrace_vtime_switch_func_t)(struct thread *);
77 extern int dtrace_vtime_active;
78 extern dtrace_vtime_switch_func_t dtrace_vtime_switch_func;
80 /* The fasttrap module hooks into the fork, exit and exit. */
81 typedef void (*dtrace_fork_func_t)(struct proc *, struct proc *);
82 typedef void (*dtrace_execexit_func_t)(struct proc *);
84 /* Global variable in kern_fork.c */
85 extern dtrace_fork_func_t dtrace_fasttrap_fork;
87 /* Global variable in kern_exec.c */
88 extern dtrace_execexit_func_t dtrace_fasttrap_exec;
90 /* Global variable in kern_exit.c */
91 extern dtrace_execexit_func_t dtrace_fasttrap_exit;
93 /* The dtmalloc provider hooks into malloc. */
94 typedef void (*dtrace_malloc_probe_func_t)(u_int32_t, uintptr_t arg0,
95 uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
97 extern dtrace_malloc_probe_func_t dtrace_malloc_probe;
99 /* dtnfsclient NFSv3 access cache provider hooks. */
100 typedef void (*dtrace_nfsclient_accesscache_flush_probe_func_t)(uint32_t,
102 extern dtrace_nfsclient_accesscache_flush_probe_func_t
103 dtrace_nfsclient_accesscache_flush_done_probe;
105 typedef void (*dtrace_nfsclient_accesscache_get_probe_func_t)(uint32_t,
106 struct vnode *, uid_t, uint32_t);
107 extern dtrace_nfsclient_accesscache_get_probe_func_t
108 dtrace_nfsclient_accesscache_get_hit_probe,
109 dtrace_nfsclient_accesscache_get_miss_probe;
111 typedef void (*dtrace_nfsclient_accesscache_load_probe_func_t)(uint32_t,
112 struct vnode *, uid_t, uint32_t, int);
113 extern dtrace_nfsclient_accesscache_load_probe_func_t
114 dtrace_nfsclient_accesscache_load_done_probe;
116 /* dtnfsclient NFSv[23] attribute cache provider hooks. */
117 typedef void (*dtrace_nfsclient_attrcache_flush_probe_func_t)(uint32_t,
119 extern dtrace_nfsclient_attrcache_flush_probe_func_t
120 dtrace_nfsclient_attrcache_flush_done_probe;
122 typedef void (*dtrace_nfsclient_attrcache_get_hit_probe_func_t)(uint32_t,
123 struct vnode *, struct vattr *);
124 extern dtrace_nfsclient_attrcache_get_hit_probe_func_t
125 dtrace_nfsclient_attrcache_get_hit_probe;
127 typedef void (*dtrace_nfsclient_attrcache_get_miss_probe_func_t)(uint32_t,
129 extern dtrace_nfsclient_attrcache_get_miss_probe_func_t
130 dtrace_nfsclient_attrcache_get_miss_probe;
132 typedef void (*dtrace_nfsclient_attrcache_load_probe_func_t)(uint32_t,
133 struct vnode *, struct vattr *, int);
134 extern dtrace_nfsclient_attrcache_load_probe_func_t
135 dtrace_nfsclient_attrcache_load_done_probe;
137 /* dtnfsclient NFSv[23] RPC provider hooks. */
138 typedef void (*dtrace_nfsclient_nfs23_start_probe_func_t)(uint32_t,
139 struct vnode *, struct mbuf *, struct ucred *, int);
140 extern dtrace_nfsclient_nfs23_start_probe_func_t
141 dtrace_nfsclient_nfs23_start_probe;
143 typedef void (*dtrace_nfsclient_nfs23_done_probe_func_t)(uint32_t,
144 struct vnode *, struct mbuf *, struct ucred *, int, int);
145 extern dtrace_nfsclient_nfs23_done_probe_func_t
146 dtrace_nfsclient_nfs23_done_probe;
149 * Functions which allow the dtrace module to check that the kernel
150 * hooks have been compiled with sufficient space for it's private
153 size_t kdtrace_proc_size(void);
154 size_t kdtrace_thread_size(void);
157 * OpenSolaris compatible time functions returning nanoseconds.
158 * On OpenSolaris these return hrtime_t which we define as uint64_t.
160 uint64_t dtrace_gethrtime(void);
161 uint64_t dtrace_gethrestime(void);
163 #endif /* _SYS_DTRACE_BSD_H */