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.
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.
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]
23 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
28 * Copyright (c) 2011, Joyent, Inc. All rights reserved.
34 #include <sys/dtrace.h>
48 * DTrace Dynamic Tracing Software: Library Interfaces
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.
58 #define DTRACE_VERSION 3 /* library ABI interface version */
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;
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 */
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 *);
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 *);
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);
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 *);
89 extern void dtrace_update(dtrace_hdl_t *);
90 extern int dtrace_ctlfd(dtrace_hdl_t *);
93 * DTrace Program Interface
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.
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 */
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 */
125 extern dtrace_prog_t *dtrace_program_strcompile(dtrace_hdl_t *,
126 const char *, dtrace_probespec_t, uint_t, int, char *const []);
128 extern dtrace_prog_t *dtrace_program_fcompile(dtrace_hdl_t *,
129 FILE *, uint_t, int, char *const []);
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 *);
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 */
140 extern int dtrace_program_link(dtrace_hdl_t *, dtrace_prog_t *,
141 uint_t, const char *, int, char *const []);
143 extern int dtrace_program_header(dtrace_hdl_t *, FILE *, const char *);
145 extern void *dtrace_dof_create(dtrace_hdl_t *, dtrace_prog_t *, uint_t);
146 extern void dtrace_dof_destroy(dtrace_hdl_t *, void *);
148 extern void *dtrace_getopt_dof(dtrace_hdl_t *);
149 extern void *dtrace_geterr_dof(dtrace_hdl_t *);
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 */
163 typedef int dtrace_stmt_f(dtrace_hdl_t *, dtrace_prog_t *,
164 dtrace_stmtdesc_t *, void *);
166 extern dtrace_stmtdesc_t *dtrace_stmt_create(dtrace_hdl_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 *);
177 * DTrace Data Consumption Interface
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 */
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;
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 *);
205 extern int dtrace_consume(dtrace_hdl_t *, FILE *,
206 dtrace_consume_probe_f *, dtrace_consume_rec_f *, void *);
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 */
214 extern int dtrace_status(dtrace_hdl_t *);
217 * DTrace Formatted Output Interfaces
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.
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);
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);
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);
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);
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);
249 * DTrace Work Interface
252 DTRACE_WORKSTATUS_ERROR = -1,
253 DTRACE_WORKSTATUS_OKAY,
254 DTRACE_WORKSTATUS_DONE
255 } dtrace_workstatus_t;
257 extern dtrace_workstatus_t dtrace_work(dtrace_hdl_t *, FILE *,
258 dtrace_consume_probe_f *, dtrace_consume_rec_f *, void *);
261 * DTrace Handler Interface
263 #define DTRACE_HANDLE_ABORT -1 /* abort current operation */
264 #define DTRACE_HANDLE_OK 0 /* handled okay; continue */
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 */
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 *);
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 */
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 */
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 *);
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 *);
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 */
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 */
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 *);
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;
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 *);
340 * DTrace Aggregate Interface
343 #define DTRACE_A_PERCPU 0x0001
344 #define DTRACE_A_KEEPDELTA 0x0002
345 #define DTRACE_A_ANONYMOUS 0x0004
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 */
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 */
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 **,
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 *);
379 extern int dtrace_aggregate_walk(dtrace_hdl_t *, dtrace_aggregate_f *, void *);
381 extern int dtrace_aggregate_walk_joined(dtrace_hdl_t *,
382 dtrace_aggvarid_t *, int, dtrace_aggregate_walk_joined_f *, void *);
384 extern int dtrace_aggregate_walk_sorted(dtrace_hdl_t *,
385 dtrace_aggregate_f *, void *);
387 extern int dtrace_aggregate_walk_keysorted(dtrace_hdl_t *,
388 dtrace_aggregate_f *, void *);
390 extern int dtrace_aggregate_walk_valsorted(dtrace_hdl_t *,
391 dtrace_aggregate_f *, void *);
393 extern int dtrace_aggregate_walk_keyvarsorted(dtrace_hdl_t *,
394 dtrace_aggregate_f *, void *);
396 extern int dtrace_aggregate_walk_valvarsorted(dtrace_hdl_t *,
397 dtrace_aggregate_f *, void *);
399 extern int dtrace_aggregate_walk_keyrevsorted(dtrace_hdl_t *,
400 dtrace_aggregate_f *, void *);
402 extern int dtrace_aggregate_walk_valrevsorted(dtrace_hdl_t *,
403 dtrace_aggregate_f *, void *);
405 extern int dtrace_aggregate_walk_keyvarrevsorted(dtrace_hdl_t *,
406 dtrace_aggregate_f *, void *);
408 extern int dtrace_aggregate_walk_valvarrevsorted(dtrace_hdl_t *,
409 dtrace_aggregate_f *, void *);
411 #define DTRACE_AGD_PRINTED 0x1 /* aggregation printed in program */
414 * DTrace Process Control Interface
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.
421 extern struct ps_prochandle *dtrace_proc_create(dtrace_hdl_t *,
422 const char *, char *const *, proc_child_func *, void *);
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 *);
429 * DTrace Object, Symbol, and Type Interfaces
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.
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 */
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 */
461 #define DTRACE_OBJ_F_KERNEL 0x1 /* object is a kernel module */
462 #define DTRACE_OBJ_F_PRIMARY 0x2 /* object is a primary module */
464 typedef int dtrace_obj_f(dtrace_hdl_t *, const dtrace_objinfo_t *, void *);
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 *);
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 */
475 extern int dtrace_lookup_by_name(dtrace_hdl_t *, const char *, const char *,
476 GElf_Sym *, dtrace_syminfo_t *);
478 extern int dtrace_lookup_by_addr(dtrace_hdl_t *, GElf_Addr addr,
479 GElf_Sym *, dtrace_syminfo_t *);
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 */
487 extern int dtrace_lookup_by_type(dtrace_hdl_t *, const char *, const char *,
488 dtrace_typeinfo_t *);
490 extern int dtrace_symbol_type(dtrace_hdl_t *, const GElf_Sym *,
491 const dtrace_syminfo_t *, dtrace_typeinfo_t *);
493 extern int dtrace_type_strcompile(dtrace_hdl_t *,
494 const char *, dtrace_typeinfo_t *);
496 extern int dtrace_type_fcompile(dtrace_hdl_t *,
497 FILE *, dtrace_typeinfo_t *);
500 * DTrace Probe Interface
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).
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;
513 typedef int dtrace_probe_f(dtrace_hdl_t *, const dtrace_probedesc_t *, void *);
515 extern int dtrace_probe_iter(dtrace_hdl_t *,
516 const dtrace_probedesc_t *pdp, dtrace_probe_f *, void *);
518 extern int dtrace_probe_info(dtrace_hdl_t *,
519 const dtrace_probedesc_t *, dtrace_probeinfo_t *);
522 * DTrace Vector Interface
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.
529 struct dtrace_vector {
531 int (*dtv_ioctl)(void *, int, void *);
533 int (*dtv_ioctl)(void *, u_long, void *);
535 int (*dtv_lookup_by_addr)(void *, GElf_Addr, GElf_Sym *,
537 int (*dtv_status)(void *, processorid_t);
538 long (*dtv_sysconf)(void *, int);
542 * DTrace Utility Functions
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.
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);
552 extern int dtrace_xstr2desc(dtrace_hdl_t *, dtrace_probespec_t,
553 const char *, int, char *const [], dtrace_probedesc_t *);
555 extern int dtrace_str2desc(dtrace_hdl_t *, dtrace_probespec_t,
556 const char *, dtrace_probedesc_t *);
558 extern int dtrace_id2desc(dtrace_hdl_t *, dtrace_id_t, dtrace_probedesc_t *);
560 #define DTRACE_DESC2STR_MAX 1024 /* min buf size for dtrace_desc2str() */
562 extern char *dtrace_desc2str(const dtrace_probedesc_t *, char *, size_t);
564 #define DTRACE_ATTR2STR_MAX 64 /* min buf size for dtrace_attr2str() */
566 extern char *dtrace_attr2str(dtrace_attribute_t, char *, size_t);
567 extern int dtrace_str2attr(const char *, dtrace_attribute_t *);
569 extern const char *dtrace_stability_name(dtrace_stability_t);
570 extern const char *dtrace_class_name(dtrace_class_t);
572 extern int dtrace_provider_modules(dtrace_hdl_t *, const char **, int);
574 extern const char *const _dtrace_version;
575 extern int _dtrace_debug;
582 #define _SC_CPUID_MAX _SC_NPROCESSORS_CONF
583 #define _SC_NPROCESSORS_MAX _SC_NPROCESSORS_CONF
586 #endif /* _DTRACE_H */