2 * Copyright 2006-2008 John Birrell <jb@FreeBSD.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * Statically Defined Tracing (SDT) definitions.
36 #define _DTRACE_VERSION 1
38 #define DTRACE_PROBE(prov, name) { \
39 extern void __dtrace_##prov##___##name(void); \
40 __dtrace_##prov##___##name(); \
43 #define DTRACE_PROBE1(prov, name, arg1) { \
44 extern void __dtrace_##prov##___##name(unsigned long); \
45 __dtrace_##prov##___##name((unsigned long)arg1); \
48 #define DTRACE_PROBE2(prov, name, arg1, arg2) { \
49 extern void __dtrace_##prov##___##name(unsigned long, \
51 __dtrace_##prov##___##name((unsigned long)arg1, \
52 (unsigned long)arg2); \
55 #define DTRACE_PROBE3(prov, name, arg1, arg2, arg3) { \
56 extern void __dtrace_##prov##___##name(unsigned long, \
57 unsigned long, unsigned long); \
58 __dtrace_##prov##___##name((unsigned long)arg1, \
59 (unsigned long)arg2, (unsigned long)arg3); \
62 #define DTRACE_PROBE4(prov, name, arg1, arg2, arg3, arg4) { \
63 extern void __dtrace_##prov##___##name(unsigned long, \
64 unsigned long, unsigned long, unsigned long); \
65 __dtrace_##prov##___##name((unsigned long)arg1, \
66 (unsigned long)arg2, (unsigned long)arg3, \
67 (unsigned long)arg4); \
70 #define DTRACE_PROBE5(prov, name, arg1, arg2, arg3, arg4, arg5) { \
71 extern void __dtrace_##prov##___##name(unsigned long, \
72 unsigned long, unsigned long, unsigned long, unsigned long);\
73 __dtrace_##prov##___##name((unsigned long)arg1, \
74 (unsigned long)arg2, (unsigned long)arg3, \
75 (unsigned long)arg4, (unsigned long)arg5); \
80 #include <sys/cdefs.h>
81 #include <sys/linker_set.h>
85 #define SDT_PROVIDER_DEFINE(prov)
86 #define SDT_PROVIDER_DECLARE(prov)
87 #define SDT_PROBE_DEFINE(prov, mod, func, name, sname)
88 #define SDT_PROBE_DECLARE(prov, mod, func, name)
89 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
90 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type)
92 #define SDT_PROBE_DEFINE0(prov, mod, func, name, sname)
93 #define SDT_PROBE_DEFINE1(prov, mod, func, name, sname, arg0)
94 #define SDT_PROBE_DEFINE2(prov, mod, func, name, sname, arg0, arg1)
95 #define SDT_PROBE_DEFINE3(prov, mod, func, name, sname, arg0, arg1, arg2)
96 #define SDT_PROBE_DEFINE4(prov, mod, func, name, sname, arg0, arg1, arg2, arg3)
97 #define SDT_PROBE_DEFINE5(prov, mod, func, name, sname, arg0, arg1, arg2, arg3, arg4)
98 #define SDT_PROBE_DEFINE6(prov, mod, func, name, snamp, arg0, arg1, arg2, \
100 #define SDT_PROBE_DEFINE7(prov, mod, func, name, snamp, arg0, arg1, arg2, \
101 arg3, arg4, arg5, arg6)
103 #define SDT_PROBE0(prov, mod, func, name)
104 #define SDT_PROBE1(prov, mod, func, name, arg0)
105 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1)
106 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2)
107 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3)
108 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
109 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5)
110 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \
115 SET_DECLARE(sdt_providers_set, struct sdt_provider);
116 SET_DECLARE(sdt_probes_set, struct sdt_probe);
117 SET_DECLARE(sdt_argtypes_set, struct sdt_argtype);
119 #define SDT_PROVIDER_DEFINE(prov) \
120 struct sdt_provider sdt_provider_##prov[1] = { \
121 { #prov, { NULL, NULL }, { NULL, NULL }, 0, 0 } \
123 DATA_SET(sdt_providers_set, sdt_provider_##prov);
125 #define SDT_PROVIDER_DECLARE(prov) \
126 extern struct sdt_provider sdt_provider_##prov[1]
128 #define SDT_PROBE_DEFINE(prov, mod, func, name, sname) \
129 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \
130 { sizeof(struct sdt_probe), sdt_provider_##prov, \
131 { NULL, NULL }, { NULL, NULL }, #mod, #func, #sname, 0, 0, \
134 DATA_SET(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name);
136 #define SDT_PROBE_DECLARE(prov, mod, func, name) \
137 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1]
139 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
140 if (sdt_##prov##_##mod##_##func##_##name->id) \
141 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \
142 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \
143 (uintptr_t) arg3, (uintptr_t) arg4)
145 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type) \
146 struct sdt_argtype sdt_##prov##_##mod##_##func##_##name##num[1] \
147 = { { num, type, { NULL, NULL }, \
148 sdt_##prov##_##mod##_##func##_##name } \
150 DATA_SET(sdt_argtypes_set, sdt_##prov##_##mod##_##func##_##name##num);
152 #define SDT_PROBE_DEFINE0(prov, mod, func, name, sname) \
153 SDT_PROBE_DEFINE(prov, mod, func, name, sname)
155 #define SDT_PROBE_DEFINE1(prov, mod, func, name, sname, arg0) \
156 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \
157 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0)
159 #define SDT_PROBE_DEFINE2(prov, mod, func, name, sname, arg0, arg1) \
160 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \
161 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \
162 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1)
164 #define SDT_PROBE_DEFINE3(prov, mod, func, name, sname, arg0, arg1, arg2)\
165 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \
166 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \
167 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1); \
168 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2)
170 #define SDT_PROBE_DEFINE4(prov, mod, func, name, sname, arg0, arg1, arg2, arg3) \
171 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \
172 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \
173 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1); \
174 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2); \
175 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3)
177 #define SDT_PROBE_DEFINE5(prov, mod, func, name, sname, arg0, arg1, arg2, arg3, arg4) \
178 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \
179 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \
180 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1); \
181 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2); \
182 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3); \
183 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4)
185 #define SDT_PROBE_DEFINE6(prov, mod, func, name, sname, arg0, arg1, arg2, arg3,\
187 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \
188 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \
189 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1); \
190 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2); \
191 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3); \
192 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4); \
193 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5);
195 #define SDT_PROBE_DEFINE7(prov, mod, func, name, sname, arg0, arg1, arg2, arg3,\
197 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \
198 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \
199 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1); \
200 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2); \
201 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3); \
202 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4); \
203 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5); \
204 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6);
206 #define SDT_PROBE0(prov, mod, func, name) \
207 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0)
208 #define SDT_PROBE1(prov, mod, func, name, arg0) \
209 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0)
210 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \
211 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0)
212 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \
213 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0)
214 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \
215 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0)
216 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
217 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
218 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \
220 if (sdt_##prov##_##mod##_##func##_##name->id) \
221 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \
222 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \
223 sdt_##prov##_##mod##_##func##_##name->id, \
224 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \
225 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\
227 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \
230 if (sdt_##prov##_##mod##_##func##_##name->id) \
231 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \
232 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \
234 sdt_##prov##_##mod##_##func##_##name->id, \
235 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \
236 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \
240 #endif /* KDTRACE_HOOKS */
243 * This type definition must match that of dtrace_probe. It is defined this
244 * way to avoid having to rely on CDDL code.
246 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1,
247 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
250 * The 'sdt' provider will set it to dtrace_probe when it loads.
252 extern sdt_probe_func_t sdt_probe_func;
259 int ndx; /* Argument index. */
260 const char *type; /* Argument type string. */
261 TAILQ_ENTRY(sdt_argtype)
262 argtype_entry; /* Argument type list entry. */
264 *probe; /* Ptr to the probe structure. */
268 int version; /* Set to sizeof(struct sdt_probe). */
269 struct sdt_provider *prov; /* Ptr to the provider structure. */
270 TAILQ_ENTRY(sdt_probe)
271 probe_entry; /* SDT probe list entry. */
272 TAILQ_HEAD(argtype_list_head, sdt_argtype) argtype_list;
276 id_t id; /* DTrace probe ID. */
277 int n_args; /* Number of arguments. */
278 struct linker_file *sdtp_lf; /* Module in which we're defined. */
281 struct sdt_provider {
282 char *name; /* Provider name. */
283 TAILQ_ENTRY(sdt_provider)
284 prov_entry; /* SDT provider list entry. */
285 TAILQ_HEAD(probe_list_head, sdt_probe) probe_list;
286 uintptr_t id; /* DTrace provider ID. */
287 int sdt_refs; /* Number of module references. */
290 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t,
295 #endif /* _SYS_SDT_H */