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_PROVIDER_DEFINE(_prov) \ 154 struct sdt_provider sdt_provider_##_prov[1] = { \ 155 [0] = { .name = #_prov }, \ 156 }; \ 157 DATA_SET(sdt_providers_set, sdt_provider_##_prov); 158 159 #define SDT_PROVIDER_DECLARE(prov) \ 160 extern struct sdt_provider sdt_provider_##prov[1] 161 162 #define SDT_PROBE_DEFINE(_prov, _mod, _func, _name) \ 163 struct sdt_probe sdt_##_prov##_##_mod##_##_func##_##_name[1] = {\ 164 [0] = { \ 165 .version = sizeof(struct sdt_probe), \ 166 .prov = sdt_provider_##_prov, \ 167 .mod = #_mod, \ 168 .func = #_func, \ 169 .name = #_name, \ 170 }, \ 171 }; \ 172 DATA_SET(sdt_probes_set, sdt_##_prov##_##_mod##_##_func##_##_name) 173 174 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 175 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] 176 177 #define SDT_PROBES_ENABLED() __predict_false(sdt_probes_enabled) 178 179 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ 180 if (SDT_PROBES_ENABLED()) { \ 181 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \ 182 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ 183 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 184 (uintptr_t) arg3, (uintptr_t) arg4); \ 185 } \ 186 } while (0) 187 188 #define SDT_PROBE_ARGTYPE(_prov, _mod, _func, _name, _num, _type, _xtype) \ 189 static struct sdt_argtype \ 190 sdta_##_prov##_##_mod##_##_func##_##_name##_num[1] = { \ 191 [0] = { \ 192 .ndx = _num, \ 193 .type = _type, \ 194 .xtype = _xtype, \ 195 .probe = sdt_##_prov##_##_mod##_##_func##_##_name, \ 196 }, \ 197 }; \ 198 DATA_SET(sdt_argtypes_set, \ 199 sdta_##_prov##_##_mod##_##_func##_##_name##_num); 200 201 #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ 202 SDT_PROBE_DEFINE(prov, mod, func, name) 203 204 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ 205 SDT_PROBE_DEFINE(prov, mod, func, name); \ 206 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) 207 208 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ 209 SDT_PROBE_DEFINE(prov, mod, func, name); \ 210 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 211 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) 212 213 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) 218 219 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 220 SDT_PROBE_DEFINE(prov, mod, func, name); \ 221 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 222 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 223 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 224 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) 225 226 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 227 SDT_PROBE_DEFINE(prov, mod, func, name); \ 228 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 229 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 230 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 231 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 232 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) 233 234 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 235 arg4, arg5) \ 236 SDT_PROBE_DEFINE(prov, mod, func, name); \ 237 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 238 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 239 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 240 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 241 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 242 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) 243 244 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 245 arg4, arg5, arg6) \ 246 SDT_PROBE_DEFINE(prov, mod, func, name); \ 247 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 248 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 249 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 250 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 251 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 252 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ 253 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) 254 255 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ 256 SDT_PROBE_DEFINE(prov, mod, func, name) 257 258 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ 259 SDT_PROBE_DEFINE(prov, mod, func, name); \ 260 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) 261 262 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 263 arg1, xarg1) \ 264 SDT_PROBE_DEFINE(prov, mod, func, name); \ 265 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 266 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) 267 268 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 269 arg1, xarg1, arg2, xarg2) \ 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) 274 275 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 276 arg1, xarg1, arg2, xarg2, arg3, xarg3) \ 277 SDT_PROBE_DEFINE(prov, mod, func, name); \ 278 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 279 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 280 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 281 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) 282 283 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 284 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ 285 SDT_PROBE_DEFINE(prov, mod, func, name); \ 286 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 287 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 288 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 289 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 290 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4) 291 292 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 293 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ 294 SDT_PROBE_DEFINE(prov, mod, func, name); \ 295 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 296 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 297 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 298 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 299 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 300 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) 301 302 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 303 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 304 xarg6) \ 305 SDT_PROBE_DEFINE(prov, mod, func, name); \ 306 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 307 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 308 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 309 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 310 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 311 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \ 312 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) 313 314 #define SDT_PROBE0(prov, mod, func, name) \ 315 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) 316 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 317 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 318 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 319 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 320 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 321 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 322 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 323 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 324 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 325 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 326 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ 327 do { \ 328 if (sdt_##prov##_##mod##_##func##_##name->id) \ 329 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 330 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ 331 sdt_##prov##_##mod##_##func##_##name->id, \ 332 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 333 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ 334 } while (0) 335 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 336 arg6) \ 337 do { \ 338 if (sdt_##prov##_##mod##_##func##_##name->id) \ 339 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 340 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ 341 sdt_probe_func)( \ 342 sdt_##prov##_##mod##_##func##_##name->id, \ 343 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 344 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \ 345 (uintptr_t)arg6); \ 346 } while (0) 347 348 #ifndef KDTRACE_NO_MIB_SDT 349 #define MIB_SDT_PROBE1(...) SDT_PROBE1(mib, __VA_ARGS__) 350 #define MIB_SDT_PROBE2(...) SDT_PROBE2(mib, __VA_ARGS__) 351 #else 352 #define MIB_SDT_PROBE1(...) 353 #define MIB_SDT_PROBE2(...) 354 #endif 355 356 #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ 357 static SDT_PROBE_DEFINE(sdt, , , name); \ 358 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); 359 #define DTRACE_PROBE_IMPL_END } while (0) 360 361 #define DTRACE_PROBE(name) \ 362 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ 363 DTRACE_PROBE_IMPL_END 364 365 #define DTRACE_PROBE1(name, type0, arg0) \ 366 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ 367 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 368 DTRACE_PROBE_IMPL_END 369 370 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ 371 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ 372 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 373 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 374 DTRACE_PROBE_IMPL_END 375 376 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ 377 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ 378 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 379 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 380 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 381 DTRACE_PROBE_IMPL_END 382 383 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ 384 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \ 385 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 386 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 387 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 388 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 389 DTRACE_PROBE_IMPL_END 390 391 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ 392 type4, arg4) \ 393 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ 394 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 395 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 396 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 397 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 398 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ 399 DTRACE_PROBE_IMPL_END 400 401 #endif /* KDTRACE_HOOKS */ 402 403 /* 404 * This type definition must match that of dtrace_probe. It is defined this 405 * way to avoid having to rely on CDDL code. 406 */ 407 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, 408 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 409 410 /* 411 * The 'sdt' provider will set it to dtrace_probe when it loads. 412 */ 413 extern sdt_probe_func_t sdt_probe_func; 414 415 struct sdt_probe; 416 struct sdt_provider; 417 struct linker_file; 418 419 struct sdt_argtype { 420 int ndx; /* Argument index. */ 421 const char *type; /* Argument type string. */ 422 const char *xtype; /* Translated argument type. */ 423 TAILQ_ENTRY(sdt_argtype) 424 argtype_entry; /* Argument type list entry. */ 425 struct sdt_probe *probe; /* Ptr to the probe structure. */ 426 }; 427 428 struct sdt_probe { 429 int version; /* Set to sizeof(struct sdt_probe). */ 430 struct sdt_provider *prov; /* Ptr to the provider structure. */ 431 TAILQ_ENTRY(sdt_probe) 432 probe_entry; /* SDT probe list entry. */ 433 TAILQ_HEAD(, sdt_argtype) argtype_list; 434 const char *mod; 435 const char *func; 436 const char *name; 437 id_t id; /* DTrace probe ID. */ 438 int n_args; /* Number of arguments. */ 439 struct linker_file *sdtp_lf; /* Module in which we're defined. */ 440 }; 441 442 struct sdt_provider { 443 char *name; /* Provider name. */ 444 TAILQ_ENTRY(sdt_provider) 445 prov_entry; /* SDT provider list entry. */ 446 uintptr_t id; /* DTrace provider ID. */ 447 int sdt_refs; /* Number of module references. */ 448 }; 449 450 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, 451 uintptr_t); 452 453 SDT_PROVIDER_DECLARE(sdt); 454 455 #endif /* _KERNEL */ 456 457 #endif /* _SYS_SDT_H */ 458