Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/sys/sdt.h
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1 /*- 2 * Copyright 2006-2008 John Birrell <jb@FreeBSD.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD: releng/11.1/sys/sys/sdt.h 315389 2017-03-16 07:20:32Z mjg $ 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 #ifndef KDTRACE_HOOKS 84 85 #define SDT_PROVIDER_DEFINE(prov) 86 #define SDT_PROVIDER_DECLARE(prov) 87 #define SDT_PROBE_DEFINE(prov, mod, func, name) 88 #define SDT_PROBE_DECLARE(prov, mod, func, name) 89 #define SDT_PROBE_ENABLED(prov, mod, func, name) 0 90 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 91 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) 92 93 #define SDT_PROBE_DEFINE0(prov, mod, func, name) 94 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) 95 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) 96 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2) 97 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 98 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 99 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \ 100 arg3, arg4, arg5) 101 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, \ 102 arg3, arg4, arg5, arg6) 103 104 #define SDT_PROBE0(prov, mod, func, name) 105 #define SDT_PROBE1(prov, mod, func, name, arg0) 106 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) 107 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) 108 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 109 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 110 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) 111 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 112 arg6) 113 114 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) 115 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) 116 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 117 arg1, xarg1) 118 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 119 arg1, xarg1, arg2, xarg2) 120 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 121 arg1, xarg1, arg2, xarg2, arg3, xarg3) 122 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 123 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) 124 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 125 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) 126 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 127 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 128 xarg6) 129 130 #define DTRACE_PROBE(name) 131 #define DTRACE_PROBE1(name, type0, arg0) 132 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) 133 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) 134 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) 135 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\ 136 type4, arg4) 137 138 #else 139 140 SET_DECLARE(sdt_providers_set, struct sdt_provider); 141 SET_DECLARE(sdt_probes_set, struct sdt_probe); 142 SET_DECLARE(sdt_argtypes_set, struct sdt_argtype); 143 144 #define SDT_PROVIDER_DEFINE(prov) \ 145 struct sdt_provider sdt_provider_##prov[1] = { \ 146 { #prov, { NULL, NULL }, 0, 0 } \ 147 }; \ 148 DATA_SET(sdt_providers_set, sdt_provider_##prov); 149 150 #define SDT_PROVIDER_DECLARE(prov) \ 151 extern struct sdt_provider sdt_provider_##prov[1] 152 153 #define SDT_PROBE_DEFINE(prov, mod, func, name) \ 154 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \ 155 { sizeof(struct sdt_probe), sdt_provider_##prov, \ 156 { NULL, NULL }, { NULL, NULL }, #mod, #func, #name, 0, 0, \ 157 NULL } \ 158 }; \ 159 DATA_SET(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name); 160 161 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 162 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] 163 164 #define SDT_PROBE_ENABLED(prov, mod, func, name) \ 165 __predict_false((sdt_##prov##_##mod##_##func##_##name->id)) 166 167 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ 168 if (__predict_false(sdt_##prov##_##mod##_##func##_##name->id)) \ 169 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ 170 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 171 (uintptr_t) arg3, (uintptr_t) arg4); \ 172 } while (0) 173 174 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) \ 175 static struct sdt_argtype sdta_##prov##_##mod##_##func##_##name##num[1] \ 176 = { { num, type, xtype, { NULL, NULL }, \ 177 sdt_##prov##_##mod##_##func##_##name } \ 178 }; \ 179 DATA_SET(sdt_argtypes_set, sdta_##prov##_##mod##_##func##_##name##num); 180 181 #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ 182 SDT_PROBE_DEFINE(prov, mod, func, name) 183 184 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ 185 SDT_PROBE_DEFINE(prov, mod, func, name); \ 186 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) 187 188 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ 189 SDT_PROBE_DEFINE(prov, mod, func, name); \ 190 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 191 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) 192 193 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ 194 SDT_PROBE_DEFINE(prov, mod, func, name); \ 195 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 196 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 197 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) 198 199 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 200 SDT_PROBE_DEFINE(prov, mod, func, name); \ 201 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 202 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 203 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 204 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) 205 206 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) 213 214 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 215 arg4, arg5) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) 223 224 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 225 arg4, arg5, arg6) \ 226 SDT_PROBE_DEFINE(prov, mod, func, name); \ 227 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 228 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 229 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 230 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 231 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 232 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ 233 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) 234 235 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ 236 SDT_PROBE_DEFINE(prov, mod, func, name) 237 238 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ 239 SDT_PROBE_DEFINE(prov, mod, func, name); \ 240 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) 241 242 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 243 arg1, xarg1) \ 244 SDT_PROBE_DEFINE(prov, mod, func, name); \ 245 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 246 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) 247 248 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 249 arg1, xarg1, arg2, xarg2) \ 250 SDT_PROBE_DEFINE(prov, mod, func, name); \ 251 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 252 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 253 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2) 254 255 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 256 arg1, xarg1, arg2, xarg2, arg3, xarg3) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) 262 263 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 264 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ 265 SDT_PROBE_DEFINE(prov, mod, func, name); \ 266 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 267 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 268 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 269 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 270 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4) 271 272 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 273 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) 281 282 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 283 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 284 xarg6) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \ 292 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) 293 294 #define SDT_PROBE0(prov, mod, func, name) \ 295 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) 296 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 297 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 298 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 299 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 300 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 301 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 302 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 303 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 304 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 305 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 306 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ 307 do { \ 308 if (sdt_##prov##_##mod##_##func##_##name->id) \ 309 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 310 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ 311 sdt_##prov##_##mod##_##func##_##name->id, \ 312 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 313 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ 314 } while (0) 315 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 316 arg6) \ 317 do { \ 318 if (sdt_##prov##_##mod##_##func##_##name->id) \ 319 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 320 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ 321 sdt_probe_func)( \ 322 sdt_##prov##_##mod##_##func##_##name->id, \ 323 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 324 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \ 325 (uintptr_t)arg6); \ 326 } while (0) 327 328 #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ 329 static SDT_PROBE_DEFINE(sdt, , , name); \ 330 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); 331 #define DTRACE_PROBE_IMPL_END } while (0) 332 333 #define DTRACE_PROBE(name) \ 334 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ 335 DTRACE_PROBE_IMPL_END 336 337 #define DTRACE_PROBE1(name, type0, arg0) \ 338 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ 339 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 340 DTRACE_PROBE_IMPL_END 341 342 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ 343 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ 344 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 345 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 346 DTRACE_PROBE_IMPL_END 347 348 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ 349 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ 350 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 351 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 352 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 353 DTRACE_PROBE_IMPL_END 354 355 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ 356 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 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 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 361 DTRACE_PROBE_IMPL_END 362 363 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ 364 type4, arg4) \ 365 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ 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 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ 371 DTRACE_PROBE_IMPL_END 372 373 #endif /* KDTRACE_HOOKS */ 374 375 /* 376 * This type definition must match that of dtrace_probe. It is defined this 377 * way to avoid having to rely on CDDL code. 378 */ 379 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, 380 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 381 382 /* 383 * The 'sdt' provider will set it to dtrace_probe when it loads. 384 */ 385 extern sdt_probe_func_t sdt_probe_func; 386 387 struct sdt_probe; 388 struct sdt_provider; 389 struct linker_file; 390 391 struct sdt_argtype { 392 int ndx; /* Argument index. */ 393 const char *type; /* Argument type string. */ 394 const char *xtype; /* Translated argument type. */ 395 TAILQ_ENTRY(sdt_argtype) 396 argtype_entry; /* Argument type list entry. */ 397 struct sdt_probe *probe; /* Ptr to the probe structure. */ 398 }; 399 400 struct sdt_probe { 401 int version; /* Set to sizeof(struct sdt_probe). */ 402 struct sdt_provider *prov; /* Ptr to the provider structure. */ 403 TAILQ_ENTRY(sdt_probe) 404 probe_entry; /* SDT probe list entry. */ 405 TAILQ_HEAD(, sdt_argtype) argtype_list; 406 const char *mod; 407 const char *func; 408 const char *name; 409 id_t id; /* DTrace probe ID. */ 410 int n_args; /* Number of arguments. */ 411 struct linker_file *sdtp_lf; /* Module in which we're defined. */ 412 }; 413 414 struct sdt_provider { 415 char *name; /* Provider name. */ 416 TAILQ_ENTRY(sdt_provider) 417 prov_entry; /* SDT provider list entry. */ 418 uintptr_t id; /* DTrace provider ID. */ 419 int sdt_refs; /* Number of module references. */ 420 }; 421 422 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, 423 uintptr_t); 424 425 SDT_PROVIDER_DECLARE(sdt); 426 427 #endif /* _KERNEL */ 428 429 #endif /* _SYS_SDT_H */
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