1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * Copyright (c) 2011, Joyent, Inc. All rights reserved. 29 */ 30 31 #ifndef _DTRACE_H 32 #define _DTRACE_H 33 34 #include <sys/dtrace.h> 35 #include <stdarg.h> 36 #include <stdio.h> 37 #include <gelf.h> 38 #include <libproc.h> 39 #if !defined(sun) 40 #include <rtld_db.h> 41 #endif 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 /* 48 * DTrace Dynamic Tracing Software: Library Interfaces 49 * 50 * Note: The contents of this file are private to the implementation of the 51 * Solaris system and DTrace subsystem and are subject to change at any time 52 * without notice. Applications and drivers using these interfaces will fail 53 * to run on future releases. These interfaces should not be used for any 54 * purpose except those expressly outlined in dtrace(7D) and libdtrace(3LIB). 55 * Please refer to the "Solaris Dynamic Tracing Guide" for more information. 56 */ 57 58 #define DTRACE_VERSION 3 /* library ABI interface version */ 59 60 struct ps_prochandle; 61 typedef struct dtrace_hdl dtrace_hdl_t; 62 typedef struct dtrace_prog dtrace_prog_t; 63 typedef struct dtrace_vector dtrace_vector_t; 64 typedef struct dtrace_aggdata dtrace_aggdata_t; 65 66 #define DTRACE_O_NODEV 0x01 /* do not open dtrace(7D) device */ 67 #define DTRACE_O_NOSYS 0x02 /* do not load /system/object modules */ 68 #define DTRACE_O_LP64 0x04 /* force D compiler to be LP64 */ 69 #define DTRACE_O_ILP32 0x08 /* force D compiler to be ILP32 */ 70 #define DTRACE_O_MASK 0x0f /* mask of valid flags to dtrace_open */ 71 72 extern dtrace_hdl_t *dtrace_open(int, int, int *); 73 extern dtrace_hdl_t *dtrace_vopen(int, int, int *, 74 const dtrace_vector_t *, void *); 75 76 extern int dtrace_go(dtrace_hdl_t *); 77 extern int dtrace_stop(dtrace_hdl_t *); 78 extern void dtrace_sleep(dtrace_hdl_t *); 79 extern void dtrace_close(dtrace_hdl_t *); 80 81 extern int dtrace_errno(dtrace_hdl_t *); 82 extern const char *dtrace_errmsg(dtrace_hdl_t *, int); 83 extern const char *dtrace_faultstr(dtrace_hdl_t *, int); 84 extern const char *dtrace_subrstr(dtrace_hdl_t *, int); 85 86 extern int dtrace_setopt(dtrace_hdl_t *, const char *, const char *); 87 extern int dtrace_getopt(dtrace_hdl_t *, const char *, dtrace_optval_t *); 88 89 extern void dtrace_update(dtrace_hdl_t *); 90 extern int dtrace_ctlfd(dtrace_hdl_t *); 91 92 /* 93 * DTrace Program Interface 94 * 95 * DTrace programs can be created by compiling ASCII text files containing 96 * D programs or by compiling in-memory C strings that specify a D program. 97 * Once created, callers can examine the list of program statements and 98 * enable the probes and actions described by these statements. 99 */ 100 101 typedef struct dtrace_proginfo { 102 dtrace_attribute_t dpi_descattr; /* minimum probedesc attributes */ 103 dtrace_attribute_t dpi_stmtattr; /* minimum statement attributes */ 104 uint_t dpi_aggregates; /* number of aggregates specified in program */ 105 uint_t dpi_recgens; /* number of record generating probes in prog */ 106 uint_t dpi_matches; /* number of probes matched by program */ 107 uint_t dpi_speculations; /* number of speculations specified in prog */ 108 } dtrace_proginfo_t; 109 110 #define DTRACE_C_DIFV 0x0001 /* DIF verbose mode: show each compiled DIFO */ 111 #define DTRACE_C_EMPTY 0x0002 /* Permit compilation of empty D source files */ 112 #define DTRACE_C_ZDEFS 0x0004 /* Permit probe defs that match zero probes */ 113 #define DTRACE_C_EATTR 0x0008 /* Error if program attributes less than min */ 114 #define DTRACE_C_CPP 0x0010 /* Preprocess input file with cpp(1) utility */ 115 #define DTRACE_C_KNODEF 0x0020 /* Permit unresolved kernel symbols in DIFO */ 116 #define DTRACE_C_UNODEF 0x0040 /* Permit unresolved user symbols in DIFO */ 117 #define DTRACE_C_PSPEC 0x0080 /* Intepret ambiguous specifiers as probes */ 118 #define DTRACE_C_ETAGS 0x0100 /* Prefix error messages with error tags */ 119 #define DTRACE_C_ARGREF 0x0200 /* Do not require all macro args to be used */ 120 #define DTRACE_C_DEFARG 0x0800 /* Use 0/"" as value for unspecified args */ 121 #define DTRACE_C_NOLIBS 0x1000 /* Do not process D system libraries */ 122 #define DTRACE_C_CTL 0x2000 /* Only process control directives */ 123 #define DTRACE_C_MASK 0x3bff /* mask of all valid flags to dtrace_*compile */ 124 125 extern dtrace_prog_t *dtrace_program_strcompile(dtrace_hdl_t *, 126 const char *, dtrace_probespec_t, uint_t, int, char *const []); 127 128 extern dtrace_prog_t *dtrace_program_fcompile(dtrace_hdl_t *, 129 FILE *, uint_t, int, char *const []); 130 131 extern int dtrace_program_exec(dtrace_hdl_t *, dtrace_prog_t *, 132 dtrace_proginfo_t *); 133 extern void dtrace_program_info(dtrace_hdl_t *, dtrace_prog_t *, 134 dtrace_proginfo_t *); 135 136 #define DTRACE_D_STRIP 0x01 /* strip non-loadable sections from program */ 137 #define DTRACE_D_PROBES 0x02 /* include provider and probe definitions */ 138 #define DTRACE_D_MASK 0x03 /* mask of valid flags to dtrace_dof_create */ 139 140 extern int dtrace_program_link(dtrace_hdl_t *, dtrace_prog_t *, 141 uint_t, const char *, int, char *const []); 142 143 extern int dtrace_program_header(dtrace_hdl_t *, FILE *, const char *); 144 145 extern void *dtrace_dof_create(dtrace_hdl_t *, dtrace_prog_t *, uint_t); 146 extern void dtrace_dof_destroy(dtrace_hdl_t *, void *); 147 148 extern void *dtrace_getopt_dof(dtrace_hdl_t *); 149 extern void *dtrace_geterr_dof(dtrace_hdl_t *); 150 151 typedef struct dtrace_stmtdesc { 152 dtrace_ecbdesc_t *dtsd_ecbdesc; /* ECB description */ 153 dtrace_actdesc_t *dtsd_action; /* action list */ 154 dtrace_actdesc_t *dtsd_action_last; /* last action in action list */ 155 void *dtsd_aggdata; /* aggregation data */ 156 void *dtsd_fmtdata; /* type-specific output data */ 157 void (*dtsd_callback)(void); /* callback function for EPID */ 158 void *dtsd_data; /* callback data pointer */ 159 dtrace_attribute_t dtsd_descattr; /* probedesc attributes */ 160 dtrace_attribute_t dtsd_stmtattr; /* statement attributes */ 161 } dtrace_stmtdesc_t; 162 163 typedef int dtrace_stmt_f(dtrace_hdl_t *, dtrace_prog_t *, 164 dtrace_stmtdesc_t *, void *); 165 166 extern dtrace_stmtdesc_t *dtrace_stmt_create(dtrace_hdl_t *, 167 dtrace_ecbdesc_t *); 168 extern dtrace_actdesc_t *dtrace_stmt_action(dtrace_hdl_t *, 169 dtrace_stmtdesc_t *); 170 extern int dtrace_stmt_add(dtrace_hdl_t *, dtrace_prog_t *, 171 dtrace_stmtdesc_t *); 172 extern int dtrace_stmt_iter(dtrace_hdl_t *, dtrace_prog_t *, 173 dtrace_stmt_f *, void *); 174 extern void dtrace_stmt_destroy(dtrace_hdl_t *, dtrace_stmtdesc_t *); 175 176 /* 177 * DTrace Data Consumption Interface 178 */ 179 typedef enum { 180 DTRACEFLOW_ENTRY, 181 DTRACEFLOW_RETURN, 182 DTRACEFLOW_NONE 183 } dtrace_flowkind_t; 184 185 #define DTRACE_CONSUME_ERROR -1 /* error while processing */ 186 #define DTRACE_CONSUME_THIS 0 /* consume this probe/record */ 187 #define DTRACE_CONSUME_NEXT 1 /* advance to next probe/rec */ 188 #define DTRACE_CONSUME_ABORT 2 /* abort consumption */ 189 190 typedef struct dtrace_probedata { 191 dtrace_hdl_t *dtpda_handle; /* handle to DTrace library */ 192 dtrace_eprobedesc_t *dtpda_edesc; /* enabled probe description */ 193 dtrace_probedesc_t *dtpda_pdesc; /* probe description */ 194 processorid_t dtpda_cpu; /* CPU for data */ 195 caddr_t dtpda_data; /* pointer to raw data */ 196 dtrace_flowkind_t dtpda_flow; /* flow kind */ 197 const char *dtpda_prefix; /* recommended flow prefix */ 198 int dtpda_indent; /* recommended flow indent */ 199 } dtrace_probedata_t; 200 201 typedef int dtrace_consume_probe_f(const dtrace_probedata_t *, void *); 202 typedef int dtrace_consume_rec_f(const dtrace_probedata_t *, 203 const dtrace_recdesc_t *, void *); 204 205 extern int dtrace_consume(dtrace_hdl_t *, FILE *, 206 dtrace_consume_probe_f *, dtrace_consume_rec_f *, void *); 207 208 #define DTRACE_STATUS_NONE 0 /* no status; not yet time */ 209 #define DTRACE_STATUS_OKAY 1 /* status okay */ 210 #define DTRACE_STATUS_EXITED 2 /* exit() was called; tracing stopped */ 211 #define DTRACE_STATUS_FILLED 3 /* fill buffer filled; tracing stoped */ 212 #define DTRACE_STATUS_STOPPED 4 /* tracing already stopped */ 213 214 extern int dtrace_status(dtrace_hdl_t *); 215 216 /* 217 * DTrace Formatted Output Interfaces 218 * 219 * To format output associated with a given dtrace_stmtdesc, the caller can 220 * invoke one of the following functions, passing the opaque dtsd_fmtdata and a 221 * list of record descriptions. These functions return either -1 to indicate 222 * an error, or a positive integer indicating the number of records consumed. 223 * For anonymous enablings, the consumer can use the dtrd_format member of 224 * the record description to obtain a format description. The dtfd_string 225 * member of the format description may be passed to dtrace_print{fa}_create() 226 * to create the opaque format data. 227 */ 228 extern void *dtrace_printf_create(dtrace_hdl_t *, const char *); 229 extern void *dtrace_printa_create(dtrace_hdl_t *, const char *); 230 extern size_t dtrace_printf_format(dtrace_hdl_t *, void *, char *, size_t); 231 232 extern int dtrace_fprintf(dtrace_hdl_t *, FILE *, void *, 233 const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t, 234 const void *, size_t); 235 236 extern int dtrace_fprinta(dtrace_hdl_t *, FILE *, void *, 237 const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t, 238 const void *, size_t); 239 240 extern int dtrace_system(dtrace_hdl_t *, FILE *, void *, 241 const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t, 242 const void *, size_t); 243 244 extern int dtrace_freopen(dtrace_hdl_t *, FILE *, void *, 245 const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t, 246 const void *, size_t); 247 248 /* 249 * DTrace Work Interface 250 */ 251 typedef enum { 252 DTRACE_WORKSTATUS_ERROR = -1, 253 DTRACE_WORKSTATUS_OKAY, 254 DTRACE_WORKSTATUS_DONE 255 } dtrace_workstatus_t; 256 257 extern dtrace_workstatus_t dtrace_work(dtrace_hdl_t *, FILE *, 258 dtrace_consume_probe_f *, dtrace_consume_rec_f *, void *); 259 260 /* 261 * DTrace Handler Interface 262 */ 263 #define DTRACE_HANDLE_ABORT -1 /* abort current operation */ 264 #define DTRACE_HANDLE_OK 0 /* handled okay; continue */ 265 266 typedef struct dtrace_errdata { 267 dtrace_hdl_t *dteda_handle; /* handle to DTrace library */ 268 dtrace_eprobedesc_t *dteda_edesc; /* enabled probe inducing err */ 269 dtrace_probedesc_t *dteda_pdesc; /* probe inducing error */ 270 processorid_t dteda_cpu; /* CPU of error */ 271 int dteda_action; /* action inducing error */ 272 int dteda_offset; /* offset in DIFO of error */ 273 int dteda_fault; /* specific fault */ 274 uint64_t dteda_addr; /* address of fault, if any */ 275 const char *dteda_msg; /* preconstructed message */ 276 } dtrace_errdata_t; 277 278 typedef int dtrace_handle_err_f(const dtrace_errdata_t *, void *); 279 extern int dtrace_handle_err(dtrace_hdl_t *, dtrace_handle_err_f *, void *); 280 281 typedef enum { 282 DTRACEDROP_PRINCIPAL, /* drop to principal buffer */ 283 DTRACEDROP_AGGREGATION, /* drop to aggregation buffer */ 284 DTRACEDROP_DYNAMIC, /* dynamic drop */ 285 DTRACEDROP_DYNRINSE, /* dyn drop due to rinsing */ 286 DTRACEDROP_DYNDIRTY, /* dyn drop due to dirty */ 287 DTRACEDROP_SPEC, /* speculative drop */ 288 DTRACEDROP_SPECBUSY, /* spec drop due to busy */ 289 DTRACEDROP_SPECUNAVAIL, /* spec drop due to unavail */ 290 DTRACEDROP_STKSTROVERFLOW, /* stack string tab overflow */ 291 DTRACEDROP_DBLERROR /* error in ERROR probe */ 292 } dtrace_dropkind_t; 293 294 typedef struct dtrace_dropdata { 295 dtrace_hdl_t *dtdda_handle; /* handle to DTrace library */ 296 processorid_t dtdda_cpu; /* CPU, if any */ 297 dtrace_dropkind_t dtdda_kind; /* kind of drop */ 298 uint64_t dtdda_drops; /* number of drops */ 299 uint64_t dtdda_total; /* total drops */ 300 const char *dtdda_msg; /* preconstructed message */ 301 } dtrace_dropdata_t; 302 303 typedef int dtrace_handle_drop_f(const dtrace_dropdata_t *, void *); 304 extern int dtrace_handle_drop(dtrace_hdl_t *, dtrace_handle_drop_f *, void *); 305 306 typedef void dtrace_handle_proc_f(struct ps_prochandle *, const char *, void *); 307 extern int dtrace_handle_proc(dtrace_hdl_t *, dtrace_handle_proc_f *, void *); 308 309 #define DTRACE_BUFDATA_AGGKEY 0x0001 /* aggregation key */ 310 #define DTRACE_BUFDATA_AGGVAL 0x0002 /* aggregation value */ 311 #define DTRACE_BUFDATA_AGGFORMAT 0x0004 /* aggregation format data */ 312 #define DTRACE_BUFDATA_AGGLAST 0x0008 /* last for this key/val */ 313 314 typedef struct dtrace_bufdata { 315 dtrace_hdl_t *dtbda_handle; /* handle to DTrace library */ 316 const char *dtbda_buffered; /* buffered output */ 317 dtrace_probedata_t *dtbda_probe; /* probe data */ 318 const dtrace_recdesc_t *dtbda_recdesc; /* record description */ 319 const dtrace_aggdata_t *dtbda_aggdata; /* aggregation data, if agg. */ 320 uint32_t dtbda_flags; /* flags; see above */ 321 } dtrace_bufdata_t; 322 323 typedef int dtrace_handle_buffered_f(const dtrace_bufdata_t *, void *); 324 extern int dtrace_handle_buffered(dtrace_hdl_t *, 325 dtrace_handle_buffered_f *, void *); 326 327 typedef struct dtrace_setoptdata { 328 dtrace_hdl_t *dtsda_handle; /* handle to DTrace library */ 329 const dtrace_probedata_t *dtsda_probe; /* probe data */ 330 const char *dtsda_option; /* option that was set */ 331 dtrace_optval_t dtsda_oldval; /* old value */ 332 dtrace_optval_t dtsda_newval; /* new value */ 333 } dtrace_setoptdata_t; 334 335 typedef int dtrace_handle_setopt_f(const dtrace_setoptdata_t *, void *); 336 extern int dtrace_handle_setopt(dtrace_hdl_t *, 337 dtrace_handle_setopt_f *, void *); 338 339 /* 340 * DTrace Aggregate Interface 341 */ 342 343 #define DTRACE_A_PERCPU 0x0001 344 #define DTRACE_A_KEEPDELTA 0x0002 345 #define DTRACE_A_ANONYMOUS 0x0004 346 347 #define DTRACE_AGGWALK_ERROR -1 /* error while processing */ 348 #define DTRACE_AGGWALK_NEXT 0 /* proceed to next element */ 349 #define DTRACE_AGGWALK_ABORT 1 /* abort aggregation walk */ 350 #define DTRACE_AGGWALK_CLEAR 2 /* clear this element */ 351 #define DTRACE_AGGWALK_NORMALIZE 3 /* normalize this element */ 352 #define DTRACE_AGGWALK_DENORMALIZE 4 /* denormalize this element */ 353 #define DTRACE_AGGWALK_REMOVE 5 /* remove this element */ 354 355 struct dtrace_aggdata { 356 dtrace_hdl_t *dtada_handle; /* handle to DTrace library */ 357 dtrace_aggdesc_t *dtada_desc; /* aggregation description */ 358 dtrace_eprobedesc_t *dtada_edesc; /* enabled probe description */ 359 dtrace_probedesc_t *dtada_pdesc; /* probe description */ 360 caddr_t dtada_data; /* pointer to raw data */ 361 uint64_t dtada_normal; /* the normal -- 1 for denorm */ 362 size_t dtada_size; /* total size of the data */ 363 caddr_t dtada_delta; /* delta data, if available */ 364 caddr_t *dtada_percpu; /* per CPU data, if avail */ 365 caddr_t *dtada_percpu_delta; /* per CPU delta, if avail */ 366 }; 367 368 typedef int dtrace_aggregate_f(const dtrace_aggdata_t *, void *); 369 typedef int dtrace_aggregate_walk_f(dtrace_hdl_t *, 370 dtrace_aggregate_f *, void *); 371 typedef int dtrace_aggregate_walk_joined_f(const dtrace_aggdata_t **, 372 const int, void *); 373 374 extern void dtrace_aggregate_clear(dtrace_hdl_t *); 375 extern int dtrace_aggregate_snap(dtrace_hdl_t *); 376 extern int dtrace_aggregate_print(dtrace_hdl_t *, FILE *, 377 dtrace_aggregate_walk_f *); 378 379 extern int dtrace_aggregate_walk(dtrace_hdl_t *, dtrace_aggregate_f *, void *); 380 381 extern int dtrace_aggregate_walk_joined(dtrace_hdl_t *, 382 dtrace_aggvarid_t *, int, dtrace_aggregate_walk_joined_f *, void *); 383 384 extern int dtrace_aggregate_walk_sorted(dtrace_hdl_t *, 385 dtrace_aggregate_f *, void *); 386 387 extern int dtrace_aggregate_walk_keysorted(dtrace_hdl_t *, 388 dtrace_aggregate_f *, void *); 389 390 extern int dtrace_aggregate_walk_valsorted(dtrace_hdl_t *, 391 dtrace_aggregate_f *, void *); 392 393 extern int dtrace_aggregate_walk_keyvarsorted(dtrace_hdl_t *, 394 dtrace_aggregate_f *, void *); 395 396 extern int dtrace_aggregate_walk_valvarsorted(dtrace_hdl_t *, 397 dtrace_aggregate_f *, void *); 398 399 extern int dtrace_aggregate_walk_keyrevsorted(dtrace_hdl_t *, 400 dtrace_aggregate_f *, void *); 401 402 extern int dtrace_aggregate_walk_valrevsorted(dtrace_hdl_t *, 403 dtrace_aggregate_f *, void *); 404 405 extern int dtrace_aggregate_walk_keyvarrevsorted(dtrace_hdl_t *, 406 dtrace_aggregate_f *, void *); 407 408 extern int dtrace_aggregate_walk_valvarrevsorted(dtrace_hdl_t *, 409 dtrace_aggregate_f *, void *); 410 411 #define DTRACE_AGD_PRINTED 0x1 /* aggregation printed in program */ 412 413 /* 414 * DTrace Process Control Interface 415 * 416 * Library clients who wish to have libdtrace create or grab processes for 417 * monitoring of their symbol table changes may use these interfaces to 418 * request that libdtrace obtain control of the process using libproc. 419 */ 420 421 extern struct ps_prochandle *dtrace_proc_create(dtrace_hdl_t *, 422 const char *, char *const *, proc_child_func *, void *); 423 424 extern struct ps_prochandle *dtrace_proc_grab(dtrace_hdl_t *, pid_t, int); 425 extern void dtrace_proc_release(dtrace_hdl_t *, struct ps_prochandle *); 426 extern void dtrace_proc_continue(dtrace_hdl_t *, struct ps_prochandle *); 427 428 /* 429 * DTrace Object, Symbol, and Type Interfaces 430 * 431 * Library clients can use libdtrace to perform symbol and C type information 432 * lookups by symbol name, symbol address, or C type name, or to lookup meta- 433 * information cached for each of the program objects in use by DTrace. The 434 * resulting struct contain pointers to arbitrary-length strings, including 435 * object, symbol, and type names, that are persistent until the next call to 436 * dtrace_update(). Once dtrace_update() is called, any cached values must 437 * be flushed and not used subsequently by the client program. 438 */ 439 440 #define DTRACE_OBJ_EXEC ((const char *)0L) /* primary executable file */ 441 #define DTRACE_OBJ_RTLD ((const char *)1L) /* run-time link-editor */ 442 #define DTRACE_OBJ_CDEFS ((const char *)2L) /* C include definitions */ 443 #define DTRACE_OBJ_DDEFS ((const char *)3L) /* D program definitions */ 444 #define DTRACE_OBJ_EVERY ((const char *)-1L) /* all known objects */ 445 #define DTRACE_OBJ_KMODS ((const char *)-2L) /* all kernel objects */ 446 #define DTRACE_OBJ_UMODS ((const char *)-3L) /* all user objects */ 447 448 typedef struct dtrace_objinfo { 449 const char *dto_name; /* object file scope name */ 450 const char *dto_file; /* object file path (if any) */ 451 int dto_id; /* object file id (if any) */ 452 uint_t dto_flags; /* object flags (see below) */ 453 GElf_Addr dto_text_va; /* address of text section */ 454 GElf_Xword dto_text_size; /* size of text section */ 455 GElf_Addr dto_data_va; /* address of data section */ 456 GElf_Xword dto_data_size; /* size of data section */ 457 GElf_Addr dto_bss_va; /* address of BSS */ 458 GElf_Xword dto_bss_size; /* size of BSS */ 459 } dtrace_objinfo_t; 460 461 #define DTRACE_OBJ_F_KERNEL 0x1 /* object is a kernel module */ 462 #define DTRACE_OBJ_F_PRIMARY 0x2 /* object is a primary module */ 463 464 typedef int dtrace_obj_f(dtrace_hdl_t *, const dtrace_objinfo_t *, void *); 465 466 extern int dtrace_object_iter(dtrace_hdl_t *, dtrace_obj_f *, void *); 467 extern int dtrace_object_info(dtrace_hdl_t *, const char *, dtrace_objinfo_t *); 468 469 typedef struct dtrace_syminfo { 470 const char *dts_object; /* object name */ 471 const char *dts_name; /* symbol name */ 472 ulong_t dts_id; /* symbol id */ 473 } dtrace_syminfo_t; 474 475 extern int dtrace_lookup_by_name(dtrace_hdl_t *, const char *, const char *, 476 GElf_Sym *, dtrace_syminfo_t *); 477 478 extern int dtrace_lookup_by_addr(dtrace_hdl_t *, GElf_Addr addr, 479 GElf_Sym *, dtrace_syminfo_t *); 480 481 typedef struct dtrace_typeinfo { 482 const char *dtt_object; /* object containing type */ 483 ctf_file_t *dtt_ctfp; /* CTF container handle */ 484 ctf_id_t dtt_type; /* CTF type identifier */ 485 } dtrace_typeinfo_t; 486 487 extern int dtrace_lookup_by_type(dtrace_hdl_t *, const char *, const char *, 488 dtrace_typeinfo_t *); 489 490 extern int dtrace_symbol_type(dtrace_hdl_t *, const GElf_Sym *, 491 const dtrace_syminfo_t *, dtrace_typeinfo_t *); 492 493 extern int dtrace_type_strcompile(dtrace_hdl_t *, 494 const char *, dtrace_typeinfo_t *); 495 496 extern int dtrace_type_fcompile(dtrace_hdl_t *, 497 FILE *, dtrace_typeinfo_t *); 498 499 /* 500 * DTrace Probe Interface 501 * 502 * Library clients can use these functions to iterate over the set of available 503 * probe definitions and inquire as to their attributes. The probe iteration 504 * interfaces report probes that are declared as well as those from dtrace(7D). 505 */ 506 typedef struct dtrace_probeinfo { 507 dtrace_attribute_t dtp_attr; /* name attributes */ 508 dtrace_attribute_t dtp_arga; /* arg attributes */ 509 const dtrace_typeinfo_t *dtp_argv; /* arg types */ 510 int dtp_argc; /* arg count */ 511 } dtrace_probeinfo_t; 512 513 typedef int dtrace_probe_f(dtrace_hdl_t *, const dtrace_probedesc_t *, void *); 514 515 extern int dtrace_probe_iter(dtrace_hdl_t *, 516 const dtrace_probedesc_t *pdp, dtrace_probe_f *, void *); 517 518 extern int dtrace_probe_info(dtrace_hdl_t *, 519 const dtrace_probedesc_t *, dtrace_probeinfo_t *); 520 521 /* 522 * DTrace Vector Interface 523 * 524 * The DTrace library normally speaks directly to dtrace(7D). However, 525 * this communication may be vectored elsewhere. Consumers who wish to 526 * perform a vectored open must fill in the vector, and use the dtrace_vopen() 527 * entry point to obtain a library handle. 528 */ 529 struct dtrace_vector { 530 #if defined(sun) 531 int (*dtv_ioctl)(void *, int, void *); 532 #else 533 int (*dtv_ioctl)(void *, u_long, void *); 534 #endif 535 int (*dtv_lookup_by_addr)(void *, GElf_Addr, GElf_Sym *, 536 dtrace_syminfo_t *); 537 int (*dtv_status)(void *, processorid_t); 538 long (*dtv_sysconf)(void *, int); 539 }; 540 541 /* 542 * DTrace Utility Functions 543 * 544 * Library clients can use these functions to convert addresses strings, to 545 * convert between string and integer probe descriptions and the 546 * dtrace_probedesc_t representation, and to perform similar conversions on 547 * stability attributes. 548 */ 549 extern int dtrace_addr2str(dtrace_hdl_t *, uint64_t, char *, int); 550 extern int dtrace_uaddr2str(dtrace_hdl_t *, pid_t, uint64_t, char *, int); 551 552 extern int dtrace_xstr2desc(dtrace_hdl_t *, dtrace_probespec_t, 553 const char *, int, char *const [], dtrace_probedesc_t *); 554 555 extern int dtrace_str2desc(dtrace_hdl_t *, dtrace_probespec_t, 556 const char *, dtrace_probedesc_t *); 557 558 extern int dtrace_id2desc(dtrace_hdl_t *, dtrace_id_t, dtrace_probedesc_t *); 559 560 #define DTRACE_DESC2STR_MAX 1024 /* min buf size for dtrace_desc2str() */ 561 562 extern char *dtrace_desc2str(const dtrace_probedesc_t *, char *, size_t); 563 564 #define DTRACE_ATTR2STR_MAX 64 /* min buf size for dtrace_attr2str() */ 565 566 extern char *dtrace_attr2str(dtrace_attribute_t, char *, size_t); 567 extern int dtrace_str2attr(const char *, dtrace_attribute_t *); 568 569 extern const char *dtrace_stability_name(dtrace_stability_t); 570 extern const char *dtrace_class_name(dtrace_class_t); 571 572 extern int dtrace_provider_modules(dtrace_hdl_t *, const char **, int); 573 574 extern const char *const _dtrace_version; 575 extern int _dtrace_debug; 576 577 #ifdef __cplusplus 578 } 579 #endif 580 581 #if !defined(sun) 582 #define _SC_CPUID_MAX _SC_NPROCESSORS_CONF 583 #define _SC_NPROCESSORS_MAX _SC_NPROCESSORS_CONF 584 #endif 585 586 #endif /* _DTRACE_H */ 587