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 * $FreeBSD$ 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_used __unused 90 91 #define SDT_PROVIDER_DEFINE(prov) 92 #define SDT_PROVIDER_DECLARE(prov) 93 #define SDT_PROBE_DEFINE(prov, mod, func, name) 94 #define SDT_PROBE_DECLARE(prov, mod, func, name) 95 #define SDT_PROBES_ENABLED() 0 96 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 97 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) 98 99 #define SDT_PROBE_DEFINE0(prov, mod, func, name) 100 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) 101 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) 102 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2) 103 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 104 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 105 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \ 106 arg3, arg4, arg5) 107 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, \ 108 arg3, arg4, arg5, arg6) 109 110 #define SDT_PROBE0(prov, mod, func, name) 111 #define SDT_PROBE1(prov, mod, func, name, arg0) 112 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) 113 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) 114 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 115 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 116 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) 117 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 118 arg6) 119 120 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) 121 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) 122 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 123 arg1, xarg1) 124 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 125 arg1, xarg1, arg2, xarg2) 126 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 127 arg1, xarg1, arg2, xarg2, arg3, xarg3) 128 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 129 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) 130 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 131 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) 132 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 133 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 134 xarg6) 135 136 #define DTRACE_PROBE(name) 137 #define DTRACE_PROBE1(name, type0, arg0) 138 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) 139 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) 140 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) 141 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\ 142 type4, arg4) 143 144 #else 145 146 #define __sdt_used 147 148 SET_DECLARE(sdt_providers_set, struct sdt_provider); 149 SET_DECLARE(sdt_probes_set, struct sdt_probe); 150 SET_DECLARE(sdt_argtypes_set, struct sdt_argtype); 151 152 #define SDT_PROVIDER_DEFINE(prov) \ 153 struct sdt_provider sdt_provider_##prov[1] = { \ 154 { #prov, { NULL, NULL }, 0, 0 } \ 155 }; \ 156 DATA_SET(sdt_providers_set, sdt_provider_##prov); 157 158 #define SDT_PROVIDER_DECLARE(prov) \ 159 extern struct sdt_provider sdt_provider_##prov[1] 160 161 #define SDT_PROBE_DEFINE(prov, mod, func, name) \ 162 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \ 163 { sizeof(struct sdt_probe), sdt_provider_##prov, \ 164 { NULL, NULL }, { NULL, NULL }, #mod, #func, #name, 0, 0, \ 165 NULL } \ 166 }; \ 167 DATA_SET(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name); 168 169 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 170 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] 171 172 #define SDT_PROBES_ENABLED() __predict_false(sdt_probes_enabled) 173 174 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ 175 if (SDT_PROBES_ENABLED()) { \ 176 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \ 177 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ 178 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 179 (uintptr_t) arg3, (uintptr_t) arg4); \ 180 } \ 181 } while (0) 182 183 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) \ 184 static struct sdt_argtype sdta_##prov##_##mod##_##func##_##name##num[1] \ 185 = { { num, type, xtype, { NULL, NULL }, \ 186 sdt_##prov##_##mod##_##func##_##name } \ 187 }; \ 188 DATA_SET(sdt_argtypes_set, sdta_##prov##_##mod##_##func##_##name##num); 189 190 #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ 191 SDT_PROBE_DEFINE(prov, mod, func, name) 192 193 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ 194 SDT_PROBE_DEFINE(prov, mod, func, name); \ 195 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) 196 197 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ 198 SDT_PROBE_DEFINE(prov, mod, func, name); \ 199 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 200 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) 201 202 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ 203 SDT_PROBE_DEFINE(prov, mod, func, name); \ 204 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 205 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 206 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) 207 208 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 213 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) 214 215 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 216 SDT_PROBE_DEFINE(prov, mod, func, name); \ 217 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 218 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 219 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 220 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 221 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) 222 223 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 224 arg4, arg5) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 231 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) 232 233 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 234 arg4, arg5, arg6) \ 235 SDT_PROBE_DEFINE(prov, mod, func, name); \ 236 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 237 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 238 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 239 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 240 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 241 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ 242 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) 243 244 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ 245 SDT_PROBE_DEFINE(prov, mod, func, name) 246 247 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ 248 SDT_PROBE_DEFINE(prov, mod, func, name); \ 249 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) 250 251 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 252 arg1, xarg1) \ 253 SDT_PROBE_DEFINE(prov, mod, func, name); \ 254 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 255 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) 256 257 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 258 arg1, xarg1, arg2, xarg2) \ 259 SDT_PROBE_DEFINE(prov, mod, func, name); \ 260 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 261 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 262 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2) 263 264 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 265 arg1, xarg1, arg2, xarg2, arg3, xarg3) \ 266 SDT_PROBE_DEFINE(prov, mod, func, name); \ 267 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 268 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 269 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 270 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) 271 272 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 273 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ 274 SDT_PROBE_DEFINE(prov, mod, func, name); \ 275 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 276 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 277 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 278 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 279 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4) 280 281 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 282 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ 283 SDT_PROBE_DEFINE(prov, mod, func, name); \ 284 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 285 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 286 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 287 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 288 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 289 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) 290 291 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 292 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 293 xarg6) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) 302 303 #define SDT_PROBE0(prov, mod, func, name) \ 304 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) 305 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 306 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 307 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 308 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 309 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 310 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 311 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 312 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 313 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 314 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 315 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ 316 do { \ 317 if (sdt_##prov##_##mod##_##func##_##name->id) \ 318 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 319 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ 320 sdt_##prov##_##mod##_##func##_##name->id, \ 321 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 322 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ 323 } while (0) 324 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 325 arg6) \ 326 do { \ 327 if (sdt_##prov##_##mod##_##func##_##name->id) \ 328 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 329 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ 330 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 (uintptr_t)arg6); \ 335 } while (0) 336 337 #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ 338 static SDT_PROBE_DEFINE(sdt, , , name); \ 339 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); 340 #define DTRACE_PROBE_IMPL_END } while (0) 341 342 #define DTRACE_PROBE(name) \ 343 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ 344 DTRACE_PROBE_IMPL_END 345 346 #define DTRACE_PROBE1(name, type0, arg0) \ 347 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ 348 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 349 DTRACE_PROBE_IMPL_END 350 351 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ 352 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ 353 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 354 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 355 DTRACE_PROBE_IMPL_END 356 357 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ 358 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ 359 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 360 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 361 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 362 DTRACE_PROBE_IMPL_END 363 364 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ 365 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \ 366 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 367 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 368 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 369 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 370 DTRACE_PROBE_IMPL_END 371 372 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ 373 type4, arg4) \ 374 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ 375 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 376 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 377 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 378 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 379 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ 380 DTRACE_PROBE_IMPL_END 381 382 #endif /* KDTRACE_HOOKS */ 383 384 /* 385 * This type definition must match that of dtrace_probe. It is defined this 386 * way to avoid having to rely on CDDL code. 387 */ 388 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, 389 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 390 391 /* 392 * The 'sdt' provider will set it to dtrace_probe when it loads. 393 */ 394 extern sdt_probe_func_t sdt_probe_func; 395 396 struct sdt_probe; 397 struct sdt_provider; 398 struct linker_file; 399 400 struct sdt_argtype { 401 int ndx; /* Argument index. */ 402 const char *type; /* Argument type string. */ 403 const char *xtype; /* Translated argument type. */ 404 TAILQ_ENTRY(sdt_argtype) 405 argtype_entry; /* Argument type list entry. */ 406 struct sdt_probe *probe; /* Ptr to the probe structure. */ 407 }; 408 409 struct sdt_probe { 410 int version; /* Set to sizeof(struct sdt_probe). */ 411 struct sdt_provider *prov; /* Ptr to the provider structure. */ 412 TAILQ_ENTRY(sdt_probe) 413 probe_entry; /* SDT probe list entry. */ 414 TAILQ_HEAD(, sdt_argtype) argtype_list; 415 const char *mod; 416 const char *func; 417 const char *name; 418 id_t id; /* DTrace probe ID. */ 419 int n_args; /* Number of arguments. */ 420 struct linker_file *sdtp_lf; /* Module in which we're defined. */ 421 }; 422 423 struct sdt_provider { 424 char *name; /* Provider name. */ 425 TAILQ_ENTRY(sdt_provider) 426 prov_entry; /* SDT provider list entry. */ 427 uintptr_t id; /* DTrace provider ID. */ 428 int sdt_refs; /* Number of module references. */ 429 }; 430 431 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, 432 uintptr_t); 433 434 SDT_PROVIDER_DECLARE(sdt); 435 436 #endif /* _KERNEL */ 437 438 #endif /* _SYS_SDT_H */ 439