1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright 2006-2008 John Birrell <[email protected]> 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_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 94 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) 95 96 #define SDT_PROBE_DEFINE0(prov, mod, func, name) 97 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) 98 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) 99 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2) 100 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 101 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 102 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \ 103 arg3, arg4, arg5) 104 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, \ 105 arg3, arg4, arg5, arg6) 106 107 #define SDT_PROBE0(prov, mod, func, name) 108 #define SDT_PROBE1(prov, mod, func, name, arg0) 109 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) 110 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) 111 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 112 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 113 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) 114 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 115 arg6) 116 117 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) 118 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) 119 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 120 arg1, xarg1) 121 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 122 arg1, xarg1, arg2, xarg2) 123 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 124 arg1, xarg1, arg2, xarg2, arg3, xarg3) 125 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 126 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) 127 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 128 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) 129 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 130 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 131 xarg6) 132 133 #define DTRACE_PROBE(name) 134 #define DTRACE_PROBE1(name, type0, arg0) 135 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) 136 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) 137 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) 138 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\ 139 type4, arg4) 140 141 #else 142 143 SET_DECLARE(sdt_providers_set, struct sdt_provider); 144 SET_DECLARE(sdt_probes_set, struct sdt_probe); 145 SET_DECLARE(sdt_argtypes_set, struct sdt_argtype); 146 147 #define SDT_PROVIDER_DEFINE(prov) \ 148 struct sdt_provider sdt_provider_##prov[1] = { \ 149 { #prov, { NULL, NULL }, 0, 0 } \ 150 }; \ 151 DATA_SET(sdt_providers_set, sdt_provider_##prov); 152 153 #define SDT_PROVIDER_DECLARE(prov) \ 154 extern struct sdt_provider sdt_provider_##prov[1] 155 156 #define SDT_PROBE_DEFINE(prov, mod, func, name) \ 157 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \ 158 { sizeof(struct sdt_probe), sdt_provider_##prov, \ 159 { NULL, NULL }, { NULL, NULL }, #mod, #func, #name, 0, 0, \ 160 NULL } \ 161 }; \ 162 DATA_SET(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name); 163 164 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 165 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] 166 167 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ 168 if (__predict_false(sdt_probes_enabled)) { \ 169 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \ 170 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ 171 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 172 (uintptr_t) arg3, (uintptr_t) arg4); \ 173 } \ 174 } while (0) 175 176 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) \ 177 static struct sdt_argtype sdta_##prov##_##mod##_##func##_##name##num[1] \ 178 = { { num, type, xtype, { NULL, NULL }, \ 179 sdt_##prov##_##mod##_##func##_##name } \ 180 }; \ 181 DATA_SET(sdt_argtypes_set, sdta_##prov##_##mod##_##func##_##name##num); 182 183 #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ 184 SDT_PROBE_DEFINE(prov, mod, func, name) 185 186 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ 187 SDT_PROBE_DEFINE(prov, mod, func, name); \ 188 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) 189 190 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ 191 SDT_PROBE_DEFINE(prov, mod, func, name); \ 192 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 193 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) 194 195 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) 200 201 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 202 SDT_PROBE_DEFINE(prov, mod, func, name); \ 203 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 204 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 205 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 206 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) 207 208 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) 215 216 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 217 arg4, arg5) \ 218 SDT_PROBE_DEFINE(prov, mod, func, name); \ 219 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 220 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 221 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 222 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 223 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 224 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) 225 226 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 227 arg4, arg5, arg6) \ 228 SDT_PROBE_DEFINE(prov, mod, func, name); \ 229 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 230 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 231 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 232 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 233 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 234 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ 235 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) 236 237 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ 238 SDT_PROBE_DEFINE(prov, mod, func, name) 239 240 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ 241 SDT_PROBE_DEFINE(prov, mod, func, name); \ 242 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) 243 244 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 245 arg1, xarg1) \ 246 SDT_PROBE_DEFINE(prov, mod, func, name); \ 247 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 248 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) 249 250 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 251 arg1, xarg1, arg2, xarg2) \ 252 SDT_PROBE_DEFINE(prov, mod, func, name); \ 253 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 254 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 255 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2) 256 257 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 258 arg1, xarg1, arg2, xarg2, arg3, xarg3) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) 264 265 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 266 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ 267 SDT_PROBE_DEFINE(prov, mod, func, name); \ 268 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 269 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 270 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 271 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 272 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4) 273 274 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 275 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ 276 SDT_PROBE_DEFINE(prov, mod, func, name); \ 277 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 278 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 279 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 280 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 281 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 282 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) 283 284 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 285 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 286 xarg6) \ 287 SDT_PROBE_DEFINE(prov, mod, func, name); \ 288 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 289 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 290 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 291 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 292 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ 293 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \ 294 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) 295 296 #define SDT_PROBE0(prov, mod, func, name) \ 297 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) 298 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 299 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 300 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 301 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 302 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 303 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 304 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 305 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 306 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 307 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 308 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ 309 do { \ 310 if (sdt_##prov##_##mod##_##func##_##name->id) \ 311 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 312 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ 313 sdt_##prov##_##mod##_##func##_##name->id, \ 314 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 315 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ 316 } while (0) 317 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 318 arg6) \ 319 do { \ 320 if (sdt_##prov##_##mod##_##func##_##name->id) \ 321 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 322 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ 323 sdt_probe_func)( \ 324 sdt_##prov##_##mod##_##func##_##name->id, \ 325 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 326 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \ 327 (uintptr_t)arg6); \ 328 } while (0) 329 330 #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ 331 static SDT_PROBE_DEFINE(sdt, , , name); \ 332 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); 333 #define DTRACE_PROBE_IMPL_END } while (0) 334 335 #define DTRACE_PROBE(name) \ 336 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ 337 DTRACE_PROBE_IMPL_END 338 339 #define DTRACE_PROBE1(name, type0, arg0) \ 340 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ 341 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 342 DTRACE_PROBE_IMPL_END 343 344 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ 345 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ 346 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 347 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 348 DTRACE_PROBE_IMPL_END 349 350 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ 351 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ 352 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 353 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 354 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 355 DTRACE_PROBE_IMPL_END 356 357 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ 358 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 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 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 363 DTRACE_PROBE_IMPL_END 364 365 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ 366 type4, arg4) \ 367 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ 368 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 369 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 370 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 371 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 372 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ 373 DTRACE_PROBE_IMPL_END 374 375 #endif /* KDTRACE_HOOKS */ 376 377 /* 378 * This type definition must match that of dtrace_probe. It is defined this 379 * way to avoid having to rely on CDDL code. 380 */ 381 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, 382 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 383 384 /* 385 * The 'sdt' provider will set it to dtrace_probe when it loads. 386 */ 387 extern sdt_probe_func_t sdt_probe_func; 388 389 struct sdt_probe; 390 struct sdt_provider; 391 struct linker_file; 392 393 struct sdt_argtype { 394 int ndx; /* Argument index. */ 395 const char *type; /* Argument type string. */ 396 const char *xtype; /* Translated argument type. */ 397 TAILQ_ENTRY(sdt_argtype) 398 argtype_entry; /* Argument type list entry. */ 399 struct sdt_probe *probe; /* Ptr to the probe structure. */ 400 }; 401 402 struct sdt_probe { 403 int version; /* Set to sizeof(struct sdt_probe). */ 404 struct sdt_provider *prov; /* Ptr to the provider structure. */ 405 TAILQ_ENTRY(sdt_probe) 406 probe_entry; /* SDT probe list entry. */ 407 TAILQ_HEAD(, sdt_argtype) argtype_list; 408 const char *mod; 409 const char *func; 410 const char *name; 411 id_t id; /* DTrace probe ID. */ 412 int n_args; /* Number of arguments. */ 413 struct linker_file *sdtp_lf; /* Module in which we're defined. */ 414 }; 415 416 struct sdt_provider { 417 char *name; /* Provider name. */ 418 TAILQ_ENTRY(sdt_provider) 419 prov_entry; /* SDT provider list entry. */ 420 uintptr_t id; /* DTrace provider ID. */ 421 int sdt_refs; /* Number of module references. */ 422 }; 423 424 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, 425 uintptr_t); 426 427 SDT_PROVIDER_DECLARE(sdt); 428 429 #endif /* _KERNEL */ 430 431 #endif /* _SYS_SDT_H */ 432