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: head/sys/sys/sdt.h 270990 2014-09-02 23:43:06Z markj $ 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 82 #ifndef KDTRACE_HOOKS 83 84 #define SDT_PROVIDER_DEFINE(prov) 85 #define SDT_PROVIDER_DECLARE(prov) 86 #define SDT_PROBE_DEFINE(prov, mod, func, name) 87 #define SDT_PROBE_DECLARE(prov, mod, func, name) 88 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 89 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) 90 91 #define SDT_PROBE_DEFINE0(prov, mod, func, name) 92 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) 93 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) 94 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2) 95 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 96 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 97 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \ 98 arg3, arg4, arg5) 99 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, \ 100 arg3, arg4, arg5, arg6) 101 102 #define SDT_PROBE0(prov, mod, func, name) 103 #define SDT_PROBE1(prov, mod, func, name, arg0) 104 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) 105 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) 106 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 107 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 108 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) 109 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 110 arg6) 111 112 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) 113 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) 114 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 115 arg1, xarg1) 116 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 117 arg1, xarg1, arg2, xarg2) 118 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 119 arg1, xarg1, arg2, xarg2, arg3, xarg3) 120 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 121 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) 122 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 123 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) 124 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 125 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 126 xarg6) 127 128 #define DTRACE_PROBE(name) 129 #define DTRACE_PROBE1(name, type0, arg0) 130 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) 131 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) 132 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) 133 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\ 134 type4, arg4) 135 136 #else 137 138 #define SDT_PROVIDER_DEFINE(prov) \ 139 struct sdt_provider sdt_provider_##prov[1] = { \ 140 { #prov, { NULL, NULL }, 0, 0 } \ 141 }; \ 142 __link_set_add_data(sdt_providers_set, sdt_provider_##prov); 143 144 #define SDT_PROVIDER_DECLARE(prov) \ 145 extern struct sdt_provider sdt_provider_##prov[1] 146 147 #define SDT_PROBE_DEFINE(prov, mod, func, name) \ 148 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \ 149 { sizeof(struct sdt_probe), sdt_provider_##prov, \ 150 { NULL, NULL }, { NULL, NULL }, #mod, #func, #name, 0, 0, \ 151 NULL } \ 152 }; \ 153 __link_set_add_data(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name); 154 155 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 156 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] 157 158 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ 159 if (sdt_##prov##_##mod##_##func##_##name->id) \ 160 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ 161 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 162 (uintptr_t) arg3, (uintptr_t) arg4); \ 163 } while (0) 164 165 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) \ 166 static struct sdt_argtype sdta_##prov##_##mod##_##func##_##name##num[1] \ 167 = { { num, type, xtype, { NULL, NULL }, \ 168 sdt_##prov##_##mod##_##func##_##name } \ 169 }; \ 170 __link_set_add_data(sdt_argtypes_set, sdta_##prov##_##mod##_##func##_##name##num); 171 172 #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ 173 SDT_PROBE_DEFINE(prov, mod, func, name) 174 175 #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ 176 SDT_PROBE_DEFINE(prov, mod, func, name); \ 177 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) 178 179 #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ 180 SDT_PROBE_DEFINE(prov, mod, func, name); \ 181 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 182 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) 183 184 #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ 185 SDT_PROBE_DEFINE(prov, mod, func, name); \ 186 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 187 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 188 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) 189 190 #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 195 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) 196 197 #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 202 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 203 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) 204 205 #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 206 arg4, arg5) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) 214 215 #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ 216 arg4, arg5, arg6) \ 217 SDT_PROBE_DEFINE(prov, mod, func, name); \ 218 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ 219 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ 220 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ 221 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ 222 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ 223 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ 224 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) 225 226 #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ 227 SDT_PROBE_DEFINE(prov, mod, func, name) 228 229 #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ 230 SDT_PROBE_DEFINE(prov, mod, func, name); \ 231 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) 232 233 #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ 234 arg1, xarg1) \ 235 SDT_PROBE_DEFINE(prov, mod, func, name); \ 236 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 237 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) 238 239 #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ 240 arg1, xarg1, arg2, xarg2) \ 241 SDT_PROBE_DEFINE(prov, mod, func, name); \ 242 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 243 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 244 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2) 245 246 #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ 247 arg1, xarg1, arg2, xarg2, arg3, xarg3) \ 248 SDT_PROBE_DEFINE(prov, mod, func, name); \ 249 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 250 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 251 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 252 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) 253 254 #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ 255 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ 256 SDT_PROBE_DEFINE(prov, mod, func, name); \ 257 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ 258 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ 259 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ 260 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ 261 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4) 262 263 #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ 264 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) 272 273 #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ 274 arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ 275 xarg6) \ 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 SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) 284 285 #define SDT_PROBE0(prov, mod, func, name) \ 286 SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) 287 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 288 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 289 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 290 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 291 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 292 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 293 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 294 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 295 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 296 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 297 #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ 298 do { \ 299 if (sdt_##prov##_##mod##_##func##_##name->id) \ 300 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 301 uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ 302 sdt_##prov##_##mod##_##func##_##name->id, \ 303 (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ 304 (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ 305 } while (0) 306 #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ 307 arg6) \ 308 do { \ 309 if (sdt_##prov##_##mod##_##func##_##name->id) \ 310 (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ 311 uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ 312 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 (uintptr_t)arg6); \ 317 } while (0) 318 319 #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ 320 static SDT_PROBE_DEFINE(sdt, , , name); \ 321 SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); 322 #define DTRACE_PROBE_IMPL_END } while (0) 323 324 #define DTRACE_PROBE(name) \ 325 DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ 326 DTRACE_PROBE_IMPL_END 327 328 #define DTRACE_PROBE1(name, type0, arg0) \ 329 DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ 330 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 331 DTRACE_PROBE_IMPL_END 332 333 #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ 334 DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ 335 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 336 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 337 DTRACE_PROBE_IMPL_END 338 339 #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ 340 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ 341 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 342 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 343 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 344 DTRACE_PROBE_IMPL_END 345 346 #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ 347 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \ 348 SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ 349 SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ 350 SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ 351 SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ 352 DTRACE_PROBE_IMPL_END 353 354 #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ 355 type4, arg4) \ 356 DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ 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 SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ 362 DTRACE_PROBE_IMPL_END 363 364 #endif /* KDTRACE_HOOKS */ 365 366 /* 367 * This type definition must match that of dtrace_probe. It is defined this 368 * way to avoid having to rely on CDDL code. 369 */ 370 typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, 371 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 372 373 /* 374 * The 'sdt' provider will set it to dtrace_probe when it loads. 375 */ 376 extern sdt_probe_func_t sdt_probe_func; 377 378 struct sdt_probe; 379 struct sdt_provider; 380 struct linker_file; 381 382 struct sdt_argtype { 383 int ndx; /* Argument index. */ 384 const char *type; /* Argument type string. */ 385 const char *xtype; /* Translated argument type. */ 386 TAILQ_ENTRY(sdt_argtype) 387 argtype_entry; /* Argument type list entry. */ 388 struct sdt_probe *probe; /* Ptr to the probe structure. */ 389 }; 390 391 struct sdt_probe { 392 int version; /* Set to sizeof(struct sdt_probe). */ 393 struct sdt_provider *prov; /* Ptr to the provider structure. */ 394 TAILQ_ENTRY(sdt_probe) 395 probe_entry; /* SDT probe list entry. */ 396 TAILQ_HEAD(argtype_list_head, sdt_argtype) argtype_list; 397 const char *mod; 398 const char *func; 399 const char *name; 400 id_t id; /* DTrace probe ID. */ 401 int n_args; /* Number of arguments. */ 402 struct linker_file *sdtp_lf; /* Module in which we're defined. */ 403 }; 404 405 struct sdt_provider { 406 const char *name; /* Provider name. */ 407 TAILQ_ENTRY(sdt_provider) 408 prov_entry; /* SDT provider list entry. */ 409 uintptr_t id; /* DTrace provider ID. */ 410 int sdt_refs; /* Number of module references. */ 411 }; 412 413 void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, 414 uintptr_t); 415 416 SDT_PROVIDER_DECLARE(sdt); 417 418 void sdt_init(void *); 419 void sdt_exit(void); 420 421 422 #endif /* _KERNEL */ 423 424 #endif /* _SYS_SDT_H */ 425