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 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 #define __sdt_used 145 146 SET_DECLARE(sdt_providers_set, struct sdt_provider); 147 SET_DECLARE(sdt_probes_set, struct sdt_probe); 148 SET_DECLARE(sdt_argtypes_set, struct sdt_argtype); 149 150 #define SDT_PROVIDER_DEFINE(prov) \ 151 struct sdt_provider sdt_provider_##prov[1] = { \ 152 { #prov, { NULL, NULL }, 0, 0 } \ 153 }; \ 154 DATA_SET(sdt_providers_set, sdt_provider_##prov); 155 156 #define SDT_PROVIDER_DECLARE(prov) \ 157 extern struct sdt_provider sdt_provider_##prov[1] 158 159 #define SDT_PROBE_DEFINE(prov, mod, func, name) \ 160 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \ 161 { sizeof(struct sdt_probe), sdt_provider_##prov, \ 162 { NULL, NULL }, { NULL, NULL }, #mod, #func, #name, 0, 0, \ 163 NULL } \ 164 }; \ 165 DATA_SET(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name); 166 167 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 168 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] 169 170 #define SDT_PROBES_ENABLED() __predict_false(sdt_probes_enabled) 171 172 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ 173 if (SDT_PROBES_ENABLED()) { \ 174 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \ 175 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ 176 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 177 (uintptr_t) arg3, (uintptr_t) arg4); \ 178 } \ 179 } while (0) 180 181 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) \ 182 static struct sdt_argtype sdta_##prov##_##mod##_##func##_##name##num[1] \ 183 = { { num, type, xtype, { NULL, NULL }, \ 184 sdt_##prov##_##mod##_##func##_##name } \ 185 }; \ 186 DATA_SET(sdt_argtypes_set, sdta_##prov##_##mod##_##func##_##name##num); 187 188 #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ 189 SDT_PROBE_DEFINE(prov, mod, func, name) 190 191 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ 192 SDT_PROBE_DEFINE(prov, mod, func, name); \ 193 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) 194 195 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ 196 SDT_PROBE_DEFINE(prov, mod, func, name); \ 197 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 198 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) 199 200 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ 201 SDT_PROBE_DEFINE(prov, mod, func, name); \ 202 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 203 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 204 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) 205 206 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 207 SDT_PROBE_DEFINE(prov, mod, func, name); \ 208 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 209 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 210 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 211 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) 212 213 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 219 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) 220 221 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 222 arg4, arg5) \ 223 SDT_PROBE_DEFINE(prov, mod, func, name); \ 224 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 225 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 226 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 227 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 228 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 229 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) 230 231 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 232 arg4, arg5, arg6) \ 233 SDT_PROBE_DEFINE(prov, mod, func, name); \ 234 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 235 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 236 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 237 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 238 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 239 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ 240 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) 241 242 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ 243 SDT_PROBE_DEFINE(prov, mod, func, name) 244 245 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ 246 SDT_PROBE_DEFINE(prov, mod, func, name); \ 247 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) 248 249 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 250 arg1, xarg1) \ 251 SDT_PROBE_DEFINE(prov, mod, func, name); \ 252 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 253 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) 254 255 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 256 arg1, xarg1, arg2, xarg2) \ 257 SDT_PROBE_DEFINE(prov, mod, func, name); \ 258 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 259 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 260 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2) 261 262 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 263 arg1, xarg1, arg2, xarg2, arg3, xarg3) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 268 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) 269 270 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 271 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ 272 SDT_PROBE_DEFINE(prov, mod, func, name); \ 273 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 274 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 275 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 276 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 277 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4) 278 279 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 280 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ 281 SDT_PROBE_DEFINE(prov, mod, func, name); \ 282 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 283 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 284 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 285 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 286 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 287 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) 288 289 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 290 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 291 xarg6) \ 292 SDT_PROBE_DEFINE(prov, mod, func, name); \ 293 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 294 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 295 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 296 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 297 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 298 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \ 299 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) 300 301 #define SDT_PROBE0(prov, mod, func, name) \ 302 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) 303 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 304 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 305 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 306 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 307 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 308 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 309 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 310 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 311 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 312 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 313 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ 314 do { \ 315 if (sdt_##prov##_##mod##_##func##_##name->id) \ 316 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 317 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ 318 sdt_##prov##_##mod##_##func##_##name->id, \ 319 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 320 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ 321 } while (0) 322 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 323 arg6) \ 324 do { \ 325 if (sdt_##prov##_##mod##_##func##_##name->id) \ 326 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 327 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ 328 sdt_probe_func)( \ 329 sdt_##prov##_##mod##_##func##_##name->id, \ 330 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 331 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \ 332 (uintptr_t)arg6); \ 333 } while (0) 334 335 #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ 336 static SDT_PROBE_DEFINE(sdt, , , name); \ 337 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); 338 #define DTRACE_PROBE_IMPL_END } while (0) 339 340 #define DTRACE_PROBE(name) \ 341 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ 342 DTRACE_PROBE_IMPL_END 343 344 #define DTRACE_PROBE1(name, type0, arg0) \ 345 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ 346 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 347 DTRACE_PROBE_IMPL_END 348 349 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ 350 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ 351 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 352 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 353 DTRACE_PROBE_IMPL_END 354 355 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ 356 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ 357 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 358 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 359 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 360 DTRACE_PROBE_IMPL_END 361 362 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ 363 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \ 364 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 365 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 366 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 367 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 368 DTRACE_PROBE_IMPL_END 369 370 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ 371 type4, arg4) \ 372 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ 373 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 374 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 375 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 376 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 377 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ 378 DTRACE_PROBE_IMPL_END 379 380 #endif /* KDTRACE_HOOKS */ 381 382 /* 383 * This type definition must match that of dtrace_probe. It is defined this 384 * way to avoid having to rely on CDDL code. 385 */ 386 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, 387 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 388 389 /* 390 * The 'sdt' provider will set it to dtrace_probe when it loads. 391 */ 392 extern sdt_probe_func_t sdt_probe_func; 393 394 struct sdt_probe; 395 struct sdt_provider; 396 struct linker_file; 397 398 struct sdt_argtype { 399 int ndx; /* Argument index. */ 400 const char *type; /* Argument type string. */ 401 const char *xtype; /* Translated argument type. */ 402 TAILQ_ENTRY(sdt_argtype) 403 argtype_entry; /* Argument type list entry. */ 404 struct sdt_probe *probe; /* Ptr to the probe structure. */ 405 }; 406 407 struct sdt_probe { 408 int version; /* Set to sizeof(struct sdt_probe). */ 409 struct sdt_provider *prov; /* Ptr to the provider structure. */ 410 TAILQ_ENTRY(sdt_probe) 411 probe_entry; /* SDT probe list entry. */ 412 TAILQ_HEAD(, sdt_argtype) argtype_list; 413 const char *mod; 414 const char *func; 415 const char *name; 416 id_t id; /* DTrace probe ID. */ 417 int n_args; /* Number of arguments. */ 418 struct linker_file *sdtp_lf; /* Module in which we're defined. */ 419 }; 420 421 struct sdt_provider { 422 char *name; /* Provider name. */ 423 TAILQ_ENTRY(sdt_provider) 424 prov_entry; /* SDT provider list entry. */ 425 uintptr_t id; /* DTrace provider ID. */ 426 int sdt_refs; /* Number of module references. */ 427 }; 428 429 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, 430 uintptr_t); 431 432 SDT_PROVIDER_DECLARE(sdt); 433 434 #endif /* _KERNEL */ 435 436 #endif /* _SYS_SDT_H */ 437