Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/sys/sdt.h
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright 2006-2008 John Birrell <jb@FreeBSD.org> 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 * 29 * Statically Defined Tracing (SDT) definitions. 30 * 31 */ 32 33 #ifndef _SYS_SDT_H 34 #define _SYS_SDT_H 35 36 #ifndef _KERNEL 37 38 #define _DTRACE_VERSION 1 39 40 #define DTRACE_PROBE(prov, name) { \ 41 extern void __dtrace_##prov##___##name(void); \ 42 __dtrace_##prov##___##name(); \ 43 } 44 45 #define DTRACE_PROBE1(prov, name, arg1) { \ 46 extern void __dtrace_##prov##___##name(unsigned long); \ 47 __dtrace_##prov##___##name((unsigned long)arg1); \ 48 } 49 50 #define DTRACE_PROBE2(prov, name, arg1, arg2) { \ 51 extern void __dtrace_##prov##___##name(unsigned long, \ 52 unsigned long); \ 53 __dtrace_##prov##___##name((unsigned long)arg1, \ 54 (unsigned long)arg2); \ 55 } 56 57 #define DTRACE_PROBE3(prov, name, arg1, arg2, arg3) { \ 58 extern void __dtrace_##prov##___##name(unsigned long, \ 59 unsigned long, unsigned long); \ 60 __dtrace_##prov##___##name((unsigned long)arg1, \ 61 (unsigned long)arg2, (unsigned long)arg3); \ 62 } 63 64 #define DTRACE_PROBE4(prov, name, arg1, arg2, arg3, arg4) { \ 65 extern void __dtrace_##prov##___##name(unsigned long, \ 66 unsigned long, unsigned long, unsigned long); \ 67 __dtrace_##prov##___##name((unsigned long)arg1, \ 68 (unsigned long)arg2, (unsigned long)arg3, \ 69 (unsigned long)arg4); \ 70 } 71 72 #define DTRACE_PROBE5(prov, name, arg1, arg2, arg3, arg4, arg5) { \ 73 extern void __dtrace_##prov##___##name(unsigned long, \ 74 unsigned long, unsigned long, unsigned long, unsigned long);\ 75 __dtrace_##prov##___##name((unsigned long)arg1, \ 76 (unsigned long)arg2, (unsigned long)arg3, \ 77 (unsigned long)arg4, (unsigned long)arg5); \ 78 } 79 80 #else /* _KERNEL */ 81 82 #include <sys/cdefs.h> 83 #include <sys/linker_set.h> 84 85 extern volatile bool sdt_probes_enabled; 86 87 #ifndef KDTRACE_HOOKS 88 89 #define SDT_PROVIDER_DEFINE(prov) 90 #define SDT_PROVIDER_DECLARE(prov) 91 #define SDT_PROBE_DEFINE(prov, mod, func, name) 92 #define SDT_PROBE_DECLARE(prov, mod, func, name) 93 #define SDT_PROBES_ENABLED() 0 94 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 95 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) 96 97 #define SDT_PROBE_DEFINE0(prov, mod, func, name) 98 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) 99 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) 100 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2) 101 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 102 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 103 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \ 104 arg3, arg4, arg5) 105 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, \ 106 arg3, arg4, arg5, arg6) 107 108 #define SDT_PROBE0(prov, mod, func, name) 109 #define SDT_PROBE1(prov, mod, func, name, arg0) 110 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) 111 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) 112 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 113 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 114 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) 115 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 116 arg6) 117 118 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) 119 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) 120 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 121 arg1, xarg1) 122 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 123 arg1, xarg1, arg2, xarg2) 124 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 125 arg1, xarg1, arg2, xarg2, arg3, xarg3) 126 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 127 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) 128 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 129 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) 130 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 131 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 132 xarg6) 133 134 #define DTRACE_PROBE(name) 135 #define DTRACE_PROBE1(name, type0, arg0) 136 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) 137 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) 138 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) 139 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\ 140 type4, arg4) 141 142 #else 143 144 SET_DECLARE(sdt_providers_set, struct sdt_provider); 145 SET_DECLARE(sdt_probes_set, struct sdt_probe); 146 SET_DECLARE(sdt_argtypes_set, struct sdt_argtype); 147 148 #define SDT_PROVIDER_DEFINE(prov) \ 149 struct sdt_provider sdt_provider_##prov[1] = { \ 150 { #prov, { NULL, NULL }, 0, 0 } \ 151 }; \ 152 DATA_SET(sdt_providers_set, sdt_provider_##prov); 153 154 #define SDT_PROVIDER_DECLARE(prov) \ 155 extern struct sdt_provider sdt_provider_##prov[1] 156 157 #define SDT_PROBE_DEFINE(prov, mod, func, name) \ 158 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \ 159 { sizeof(struct sdt_probe), sdt_provider_##prov, \ 160 { NULL, NULL }, { NULL, NULL }, #mod, #func, #name, 0, 0, \ 161 NULL } \ 162 }; \ 163 DATA_SET(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name); 164 165 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 166 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] 167 168 #define SDT_PROBES_ENABLED() __predict_false(sdt_probes_enabled) 169 170 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ 171 if (SDT_PROBES_ENABLED()) { \ 172 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \ 173 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ 174 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 175 (uintptr_t) arg3, (uintptr_t) arg4); \ 176 } \ 177 } while (0) 178 179 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) \ 180 static struct sdt_argtype sdta_##prov##_##mod##_##func##_##name##num[1] \ 181 = { { num, type, xtype, { NULL, NULL }, \ 182 sdt_##prov##_##mod##_##func##_##name } \ 183 }; \ 184 DATA_SET(sdt_argtypes_set, sdta_##prov##_##mod##_##func##_##name##num); 185 186 #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ 187 SDT_PROBE_DEFINE(prov, mod, func, name) 188 189 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ 190 SDT_PROBE_DEFINE(prov, mod, func, name); \ 191 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) 192 193 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ 194 SDT_PROBE_DEFINE(prov, mod, func, name); \ 195 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 196 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) 197 198 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ 199 SDT_PROBE_DEFINE(prov, mod, func, name); \ 200 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 201 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 202 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) 203 204 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 205 SDT_PROBE_DEFINE(prov, mod, func, name); \ 206 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 207 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 208 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 209 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) 210 211 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 212 SDT_PROBE_DEFINE(prov, mod, func, name); \ 213 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 214 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 215 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 216 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 217 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) 218 219 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 220 arg4, arg5) \ 221 SDT_PROBE_DEFINE(prov, mod, func, name); \ 222 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 223 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 224 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 225 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 226 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 227 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) 228 229 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 230 arg4, arg5, arg6) \ 231 SDT_PROBE_DEFINE(prov, mod, func, name); \ 232 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 233 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 234 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 235 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 236 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 237 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ 238 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) 239 240 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ 241 SDT_PROBE_DEFINE(prov, mod, func, name) 242 243 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ 244 SDT_PROBE_DEFINE(prov, mod, func, name); \ 245 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) 246 247 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 248 arg1, xarg1) \ 249 SDT_PROBE_DEFINE(prov, mod, func, name); \ 250 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 251 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) 252 253 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 254 arg1, xarg1, arg2, xarg2) \ 255 SDT_PROBE_DEFINE(prov, mod, func, name); \ 256 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 257 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 258 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2) 259 260 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 261 arg1, xarg1, arg2, xarg2, arg3, xarg3) \ 262 SDT_PROBE_DEFINE(prov, mod, func, name); \ 263 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 264 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 265 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 266 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) 267 268 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 269 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ 270 SDT_PROBE_DEFINE(prov, mod, func, name); \ 271 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 272 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 273 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 274 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 275 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4) 276 277 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 278 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ 279 SDT_PROBE_DEFINE(prov, mod, func, name); \ 280 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 281 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 282 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 283 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 284 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 285 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) 286 287 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 288 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 289 xarg6) \ 290 SDT_PROBE_DEFINE(prov, mod, func, name); \ 291 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 292 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 293 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 294 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 295 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 296 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \ 297 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) 298 299 #define SDT_PROBE0(prov, mod, func, name) \ 300 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) 301 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 302 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 303 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 304 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 305 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 306 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 307 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 308 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 309 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 310 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 311 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ 312 do { \ 313 if (sdt_##prov##_##mod##_##func##_##name->id) \ 314 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 315 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ 316 sdt_##prov##_##mod##_##func##_##name->id, \ 317 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 318 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ 319 } while (0) 320 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 321 arg6) \ 322 do { \ 323 if (sdt_##prov##_##mod##_##func##_##name->id) \ 324 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 325 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ 326 sdt_probe_func)( \ 327 sdt_##prov##_##mod##_##func##_##name->id, \ 328 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 329 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \ 330 (uintptr_t)arg6); \ 331 } while (0) 332 333 #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ 334 static SDT_PROBE_DEFINE(sdt, , , name); \ 335 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); 336 #define DTRACE_PROBE_IMPL_END } while (0) 337 338 #define DTRACE_PROBE(name) \ 339 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ 340 DTRACE_PROBE_IMPL_END 341 342 #define DTRACE_PROBE1(name, type0, arg0) \ 343 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ 344 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 345 DTRACE_PROBE_IMPL_END 346 347 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ 348 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ 349 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 350 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 351 DTRACE_PROBE_IMPL_END 352 353 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ 354 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ 355 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 356 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 357 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 358 DTRACE_PROBE_IMPL_END 359 360 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ 361 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \ 362 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 363 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 364 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 365 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 366 DTRACE_PROBE_IMPL_END 367 368 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ 369 type4, arg4) \ 370 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ 371 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 372 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 373 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 374 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 375 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ 376 DTRACE_PROBE_IMPL_END 377 378 #endif /* KDTRACE_HOOKS */ 379 380 /* 381 * This type definition must match that of dtrace_probe. It is defined this 382 * way to avoid having to rely on CDDL code. 383 */ 384 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, 385 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 386 387 /* 388 * The 'sdt' provider will set it to dtrace_probe when it loads. 389 */ 390 extern sdt_probe_func_t sdt_probe_func; 391 392 struct sdt_probe; 393 struct sdt_provider; 394 struct linker_file; 395 396 struct sdt_argtype { 397 int ndx; /* Argument index. */ 398 const char *type; /* Argument type string. */ 399 const char *xtype; /* Translated argument type. */ 400 TAILQ_ENTRY(sdt_argtype) 401 argtype_entry; /* Argument type list entry. */ 402 struct sdt_probe *probe; /* Ptr to the probe structure. */ 403 }; 404 405 struct sdt_probe { 406 int version; /* Set to sizeof(struct sdt_probe). */ 407 struct sdt_provider *prov; /* Ptr to the provider structure. */ 408 TAILQ_ENTRY(sdt_probe) 409 probe_entry; /* SDT probe list entry. */ 410 TAILQ_HEAD(, sdt_argtype) argtype_list; 411 const char *mod; 412 const char *func; 413 const char *name; 414 id_t id; /* DTrace probe ID. */ 415 int n_args; /* Number of arguments. */ 416 struct linker_file *sdtp_lf; /* Module in which we're defined. */ 417 }; 418 419 struct sdt_provider { 420 char *name; /* Provider name. */ 421 TAILQ_ENTRY(sdt_provider) 422 prov_entry; /* SDT provider list entry. */ 423 uintptr_t id; /* DTrace provider ID. */ 424 int sdt_refs; /* Number of module references. */ 425 }; 426 427 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, 428 uintptr_t); 429 430 SDT_PROVIDER_DECLARE(sdt); 431 432 #endif /* _KERNEL */ 433 434 #endif /* _SYS_SDT_H */
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