1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 * Statically Defined Tracing (SDT) definitions. 28 * 29 */ 30 31 #ifndef _SYS_SDT_H 32 #define _SYS_SDT_H 33 34 #ifndef _KERNEL 35 36 #define _DTRACE_VERSION 1 37 38 #define DTRACE_PROBE(prov, name) { \ 39 extern void __dtrace_##prov##___##name(void); \ 40 __dtrace_##prov##___##name(); \ 41 } 42 43 #define DTRACE_PROBE1(prov, name, arg1) { \ 44 extern void __dtrace_##prov##___##name(unsigned long); \ 45 __dtrace_##prov##___##name((unsigned long)arg1); \ 46 } 47 48 #define DTRACE_PROBE2(prov, name, arg1, arg2) { \ 49 extern void __dtrace_##prov##___##name(unsigned long, \ 50 unsigned long); \ 51 __dtrace_##prov##___##name((unsigned long)arg1, \ 52 (unsigned long)arg2); \ 53 } 54 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); \ 60 } 61 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); \ 68 } 69 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); \ 76 } 77 78 #else /* _KERNEL */ 79 80 #include <sys/cdefs.h> 81 #include <sys/linker_set.h> 82 83 extern volatile bool sdt_probes_enabled; 84 85 #ifndef KDTRACE_HOOKS 86 87 #define __sdt_used __unused 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 MIB_SDT_PROBE1(...) 119 #define MIB_SDT_PROBE2(...) 120 121 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) 122 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) 123 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 124 arg1, xarg1) 125 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 126 arg1, xarg1, arg2, xarg2) 127 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 128 arg1, xarg1, arg2, xarg2, arg3, xarg3) 129 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 130 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) 131 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 132 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) 133 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 134 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 135 xarg6) 136 137 #define DTRACE_PROBE(name) 138 #define DTRACE_PROBE1(name, type0, arg0) 139 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) 140 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) 141 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) 142 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\ 143 type4, arg4) 144 145 #else 146 147 #define __sdt_used 148 149 SET_DECLARE(sdt_providers_set, struct sdt_provider); 150 SET_DECLARE(sdt_probes_set, struct sdt_probe); 151 SET_DECLARE(sdt_argtypes_set, struct sdt_argtype); 152 153 #define _SDT_PROBE_NAME(prov, mod, func, name) \ 154 sdt_##prov##_##mod##_##func##_##name 155 #define _SDT_PROVIDER_NAME(prov) \ 156 sdt_provider_##prov 157 158 #define SDT_PROVIDER_DEFINE(_prov) \ 159 struct sdt_provider _SDT_PROVIDER_NAME(_prov)[1] = { \ 160 [0] = { .name = #_prov }, \ 161 }; \ 162 DATA_SET(sdt_providers_set, _SDT_PROVIDER_NAME(_prov)) 163 164 #define SDT_PROVIDER_DECLARE(prov) \ 165 extern struct sdt_provider _SDT_PROVIDER_NAME(prov)[1] 166 167 #define SDT_PROBE_DEFINE(_prov, _mod, _func, _name) \ 168 struct sdt_probe _SDT_PROBE_NAME(_prov, _mod, _func, _name)[1] = { \ 169 [0] = { \ 170 .version = sizeof(struct sdt_probe), \ 171 .prov = _SDT_PROVIDER_NAME(_prov), \ 172 .mod = #_mod, \ 173 .func = #_func, \ 174 .name = #_name, \ 175 }, \ 176 }; \ 177 DATA_SET(sdt_probes_set, _SDT_PROBE_NAME(_prov, _mod, _func, _name)) 178 179 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 180 extern struct sdt_probe _SDT_PROBE_NAME(prov, mod, func, name)[1] 181 182 #define SDT_PROBES_ENABLED() __predict_false(sdt_probes_enabled) 183 184 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ 185 if (SDT_PROBES_ENABLED()) { \ 186 if (__predict_false(_SDT_PROBE_NAME(prov, mod, func, name)->id)) \ 187 (*sdt_probe_func)(_SDT_PROBE_NAME(prov, mod, func, name)->id, \ 188 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 189 (uintptr_t) arg3, (uintptr_t) arg4); \ 190 } \ 191 } while (0) 192 193 #define SDT_PROBE_ARGTYPE(_prov, _mod, _func, _name, _num, _type, _xtype) \ 194 static struct sdt_argtype \ 195 sdta_##_prov##_##_mod##_##_func##_##_name##_num[1] = { \ 196 [0] = { \ 197 .ndx = _num, \ 198 .type = _type, \ 199 .xtype = _xtype, \ 200 .probe = _SDT_PROBE_NAME(_prov, _mod, _func, _name), \ 201 }, \ 202 }; \ 203 DATA_SET(sdt_argtypes_set, \ 204 sdta_##_prov##_##_mod##_##_func##_##_name##_num); 205 206 #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ 207 SDT_PROBE_DEFINE(prov, mod, func, name) 208 209 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ 210 SDT_PROBE_DEFINE(prov, mod, func, name); \ 211 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) 212 213 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ 214 SDT_PROBE_DEFINE(prov, mod, func, name); \ 215 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 216 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) 217 218 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ 219 SDT_PROBE_DEFINE(prov, mod, func, name); \ 220 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 221 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 222 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) 223 224 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 225 SDT_PROBE_DEFINE(prov, mod, func, name); \ 226 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 227 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 228 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 229 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) 230 231 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 232 SDT_PROBE_DEFINE(prov, mod, func, name); \ 233 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 234 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 235 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 236 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 237 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) 238 239 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 240 arg4, arg5) \ 241 SDT_PROBE_DEFINE(prov, mod, func, name); \ 242 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 243 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 244 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 245 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 246 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 247 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) 248 249 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 250 arg4, arg5, arg6) \ 251 SDT_PROBE_DEFINE(prov, mod, func, name); \ 252 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 253 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 254 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 255 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 256 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 257 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ 258 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) 259 260 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ 261 SDT_PROBE_DEFINE(prov, mod, func, name) 262 263 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ 264 SDT_PROBE_DEFINE(prov, mod, func, name); \ 265 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) 266 267 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 268 arg1, xarg1) \ 269 SDT_PROBE_DEFINE(prov, mod, func, name); \ 270 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 271 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) 272 273 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 274 arg1, xarg1, arg2, xarg2) \ 275 SDT_PROBE_DEFINE(prov, mod, func, name); \ 276 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 277 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 278 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2) 279 280 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 281 arg1, xarg1, arg2, xarg2, arg3, xarg3) \ 282 SDT_PROBE_DEFINE(prov, mod, func, name); \ 283 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 284 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 285 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 286 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) 287 288 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 289 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ 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) 296 297 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 298 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ 299 SDT_PROBE_DEFINE(prov, mod, func, name); \ 300 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 301 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 302 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 303 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 304 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 305 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) 306 307 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 308 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 309 xarg6) \ 310 SDT_PROBE_DEFINE(prov, mod, func, name); \ 311 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 312 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 313 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 314 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 315 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 316 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \ 317 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) 318 319 #define SDT_PROBE0(prov, mod, func, name) \ 320 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) 321 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 322 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 323 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 324 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 325 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 326 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 327 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 328 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 329 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 330 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 331 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ 332 do { \ 333 if (_SDT_PROBE_NAME(prov, mod, func, name)->id) \ 334 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 335 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ 336 _SDT_PROBE_NAME(prov, mod, func, name)->id, \ 337 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 338 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ 339 } while (0) 340 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 341 arg6) \ 342 do { \ 343 if (_SDT_PROBE_NAME(prov, mod, func, name)->id) \ 344 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 345 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ 346 sdt_probe_func)( \ 347 _SDT_PROBE_NAME(prov, mod, func, name)->id, \ 348 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 349 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \ 350 (uintptr_t)arg6); \ 351 } while (0) 352 353 #ifndef KDTRACE_NO_MIB_SDT 354 #define MIB_SDT_PROBE1(...) SDT_PROBE1(mib, __VA_ARGS__) 355 #define MIB_SDT_PROBE2(...) SDT_PROBE2(mib, __VA_ARGS__) 356 #else 357 #define MIB_SDT_PROBE1(...) 358 #define MIB_SDT_PROBE2(...) 359 #endif 360 361 #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ 362 static SDT_PROBE_DEFINE(sdt, , , name); \ 363 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); 364 #define DTRACE_PROBE_IMPL_END } while (0) 365 366 #define DTRACE_PROBE(name) \ 367 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ 368 DTRACE_PROBE_IMPL_END 369 370 #define DTRACE_PROBE1(name, type0, arg0) \ 371 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ 372 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 373 DTRACE_PROBE_IMPL_END 374 375 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ 376 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ 377 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 378 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 379 DTRACE_PROBE_IMPL_END 380 381 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ 382 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ 383 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 384 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 385 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 386 DTRACE_PROBE_IMPL_END 387 388 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ 389 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \ 390 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 391 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 392 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 393 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 394 DTRACE_PROBE_IMPL_END 395 396 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ 397 type4, arg4) \ 398 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ 399 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 400 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 401 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 402 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 403 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ 404 DTRACE_PROBE_IMPL_END 405 406 #endif /* KDTRACE_HOOKS */ 407 408 /* 409 * This type definition must match that of dtrace_probe. It is defined this 410 * way to avoid having to rely on CDDL code. 411 */ 412 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, 413 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 414 415 /* 416 * The 'sdt' provider will set it to dtrace_probe when it loads. 417 */ 418 extern sdt_probe_func_t sdt_probe_func; 419 420 struct sdt_probe; 421 struct sdt_provider; 422 struct linker_file; 423 424 struct sdt_argtype { 425 int ndx; /* Argument index. */ 426 const char *type; /* Argument type string. */ 427 const char *xtype; /* Translated argument type. */ 428 TAILQ_ENTRY(sdt_argtype) 429 argtype_entry; /* Argument type list entry. */ 430 struct sdt_probe *probe; /* Ptr to the probe structure. */ 431 }; 432 433 struct sdt_probe { 434 int version; /* Set to sizeof(struct sdt_probe). */ 435 struct sdt_provider *prov; /* Ptr to the provider structure. */ 436 TAILQ_ENTRY(sdt_probe) 437 probe_entry; /* SDT probe list entry. */ 438 TAILQ_HEAD(, sdt_argtype) argtype_list; 439 const char *mod; 440 const char *func; 441 const char *name; 442 id_t id; /* DTrace probe ID. */ 443 int n_args; /* Number of arguments. */ 444 struct linker_file *sdtp_lf; /* Module in which we're defined. */ 445 }; 446 447 struct sdt_provider { 448 char *name; /* Provider name. */ 449 TAILQ_ENTRY(sdt_provider) 450 prov_entry; /* SDT provider list entry. */ 451 uintptr_t id; /* DTrace provider ID. */ 452 int sdt_refs; /* Number of module references. */ 453 }; 454 455 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, 456 uintptr_t); 457 458 SDT_PROVIDER_DECLARE(sdt); 459 460 #endif /* _KERNEL */ 461 462 #endif /* _SYS_SDT_H */ 463