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) 2023 by Domagoj Stolfa. All rights reserved.
29 * Copyright (c) 2014, 2016 by Delphix. All rights reserved.
30 * Copyright (c) 2013, Joyent, Inc. All rights reserved.
36 #include <sys/dtrace.h>
50 * DTrace Dynamic Tracing Software: Library Interfaces
52 * Note: The contents of this file are private to the implementation of the
53 * Solaris system and DTrace subsystem and are subject to change at any time
54 * without notice. Applications and drivers using these interfaces will fail
55 * to run on future releases. These interfaces should not be used for any
56 * purpose except those expressly outlined in dtrace(7D) and libdtrace(3LIB).
57 * Please refer to the "Solaris Dynamic Tracing Guide" for more information.
60 #define DTRACE_VERSION 3 /* library ABI interface version */
64 typedef struct dtrace_hdl dtrace_hdl_t;
65 typedef struct dtrace_prog dtrace_prog_t;
66 typedef struct dtrace_vector dtrace_vector_t;
67 typedef struct dtrace_aggdata dtrace_aggdata_t;
69 #define DTRACE_O_NODEV 0x01 /* do not open dtrace(7D) device */
70 #define DTRACE_O_NOSYS 0x02 /* do not load /system/object modules */
71 #define DTRACE_O_LP64 0x04 /* force D compiler to be LP64 */
72 #define DTRACE_O_ILP32 0x08 /* force D compiler to be ILP32 */
73 #define DTRACE_O_MASK 0x0f /* mask of valid flags to dtrace_open */
75 extern dtrace_hdl_t *dtrace_open(int, int, int *);
76 extern dtrace_hdl_t *dtrace_vopen(int, int, int *,
77 const dtrace_vector_t *, void *);
79 extern int dtrace_go(dtrace_hdl_t *);
80 extern int dtrace_stop(dtrace_hdl_t *);
81 extern void dtrace_sleep(dtrace_hdl_t *);
82 extern void dtrace_close(dtrace_hdl_t *);
84 extern int dtrace_errno(dtrace_hdl_t *);
85 extern const char *dtrace_errmsg(dtrace_hdl_t *, int);
86 extern const char *dtrace_faultstr(dtrace_hdl_t *, int);
87 extern const char *dtrace_subrstr(dtrace_hdl_t *, int);
89 extern int dtrace_setopt(dtrace_hdl_t *, const char *, const char *);
90 extern int dtrace_getopt(dtrace_hdl_t *, const char *, dtrace_optval_t *);
92 extern void dtrace_update(dtrace_hdl_t *);
93 extern int dtrace_ctlfd(dtrace_hdl_t *);
96 * DTrace Program Interface
98 * DTrace programs can be created by compiling ASCII text files containing
99 * D programs or by compiling in-memory C strings that specify a D program.
100 * Once created, callers can examine the list of program statements and
101 * enable the probes and actions described by these statements.
104 typedef struct dtrace_proginfo {
105 dtrace_attribute_t dpi_descattr; /* minimum probedesc attributes */
106 dtrace_attribute_t dpi_stmtattr; /* minimum statement attributes */
107 uint_t dpi_aggregates; /* number of aggregates specified in program */
108 uint_t dpi_recgens; /* number of record generating probes in prog */
109 uint_t dpi_matches; /* number of probes matched by program */
110 uint_t dpi_speculations; /* number of speculations specified in prog */
113 #define DTRACE_C_DIFV 0x0001 /* DIF verbose mode: show each compiled DIFO */
114 #define DTRACE_C_EMPTY 0x0002 /* Permit compilation of empty D source files */
115 #define DTRACE_C_ZDEFS 0x0004 /* Permit probe defs that match zero probes */
116 #define DTRACE_C_EATTR 0x0008 /* Error if program attributes less than min */
117 #define DTRACE_C_CPP 0x0010 /* Preprocess input file with cpp(1) utility */
118 #define DTRACE_C_KNODEF 0x0020 /* Permit unresolved kernel symbols in DIFO */
119 #define DTRACE_C_UNODEF 0x0040 /* Permit unresolved user symbols in DIFO */
120 #define DTRACE_C_PSPEC 0x0080 /* Interpret ambiguous specifiers as probes */
121 #define DTRACE_C_ETAGS 0x0100 /* Prefix error messages with error tags */
122 #define DTRACE_C_ARGREF 0x0200 /* Do not require all macro args to be used */
123 #define DTRACE_C_SUGAR 0x0400 /* Dump D script post-dt_sugar */
124 #define DTRACE_C_DEFARG 0x0800 /* Use 0/"" as value for unspecified args */
125 #define DTRACE_C_NOLIBS 0x1000 /* Do not process D system libraries */
126 #define DTRACE_C_CTL 0x2000 /* Only process control directives */
127 #define DTRACE_C_MASK 0x3fff /* mask of all valid flags to dtrace_*compile */
129 extern dtrace_prog_t *dtrace_program_strcompile(dtrace_hdl_t *,
130 const char *, dtrace_probespec_t, uint_t, int, char *const []);
132 extern dtrace_prog_t *dtrace_program_fcompile(dtrace_hdl_t *,
133 FILE *, uint_t, int, char *const []);
135 extern int dtrace_program_exec(dtrace_hdl_t *, dtrace_prog_t *,
136 dtrace_proginfo_t *);
137 extern void dtrace_program_info(dtrace_hdl_t *, dtrace_prog_t *,
138 dtrace_proginfo_t *);
140 #define DTRACE_D_STRIP 0x01 /* strip non-loadable sections from program */
141 #define DTRACE_D_PROBES 0x02 /* include provider and probe definitions */
142 #define DTRACE_D_MASK 0x03 /* mask of valid flags to dtrace_dof_create */
144 extern int dtrace_program_link(dtrace_hdl_t *, dtrace_prog_t *,
145 uint_t, const char *, int, char *const []);
147 extern int dtrace_program_header(dtrace_hdl_t *, FILE *, const char *);
149 extern void *dtrace_dof_create(dtrace_hdl_t *, dtrace_prog_t *, uint_t);
150 extern void dtrace_dof_destroy(dtrace_hdl_t *, void *);
152 extern void *dtrace_getopt_dof(dtrace_hdl_t *);
153 extern void *dtrace_geterr_dof(dtrace_hdl_t *);
155 typedef struct dtrace_stmtdesc {
156 dtrace_ecbdesc_t *dtsd_ecbdesc; /* ECB description */
157 dtrace_actdesc_t *dtsd_action; /* action list */
158 dtrace_actdesc_t *dtsd_action_last; /* last action in action list */
159 void *dtsd_aggdata; /* aggregation data */
160 void *dtsd_fmtdata; /* type-specific output data */
161 void *dtsd_strdata; /* type-specific string data */
162 void (*dtsd_callback)(void); /* callback function for EPID */
163 void *dtsd_data; /* callback data pointer */
164 dtrace_attribute_t dtsd_descattr; /* probedesc attributes */
165 dtrace_attribute_t dtsd_stmtattr; /* statement attributes */
168 typedef int dtrace_stmt_f(dtrace_hdl_t *, dtrace_prog_t *,
169 dtrace_stmtdesc_t *, void *);
171 extern dtrace_stmtdesc_t *dtrace_stmt_create(dtrace_hdl_t *,
173 extern dtrace_actdesc_t *dtrace_stmt_action(dtrace_hdl_t *,
174 dtrace_stmtdesc_t *);
175 extern int dtrace_stmt_add(dtrace_hdl_t *, dtrace_prog_t *,
176 dtrace_stmtdesc_t *);
177 extern int dtrace_stmt_iter(dtrace_hdl_t *, dtrace_prog_t *,
178 dtrace_stmt_f *, void *);
179 extern void dtrace_stmt_destroy(dtrace_hdl_t *, dtrace_stmtdesc_t *);
182 * DTrace Data Consumption Interface
190 #define DTRACE_CONSUME_ERROR -1 /* error while processing */
191 #define DTRACE_CONSUME_THIS 0 /* consume this probe/record */
192 #define DTRACE_CONSUME_NEXT 1 /* advance to next probe/rec */
193 #define DTRACE_CONSUME_ABORT 2 /* abort consumption */
195 typedef struct dtrace_probedata {
196 dtrace_hdl_t *dtpda_handle; /* handle to DTrace library */
197 dtrace_eprobedesc_t *dtpda_edesc; /* enabled probe description */
198 dtrace_probedesc_t *dtpda_pdesc; /* probe description */
199 processorid_t dtpda_cpu; /* CPU for data */
200 caddr_t dtpda_data; /* pointer to raw data */
201 dtrace_flowkind_t dtpda_flow; /* flow kind */
202 const char *dtpda_prefix; /* recommended flow prefix */
203 int dtpda_indent; /* recommended flow indent */
204 uint64_t dtpda_timestamp; /* hrtime of snapshot */
205 } dtrace_probedata_t;
207 typedef int dtrace_consume_probe_f(const dtrace_probedata_t *, void *);
208 typedef int dtrace_consume_rec_f(const dtrace_probedata_t *,
209 const dtrace_recdesc_t *, void *);
211 extern int dtrace_consume(dtrace_hdl_t *, FILE *,
212 dtrace_consume_probe_f *, dtrace_consume_rec_f *, void *);
214 #define DTRACE_STATUS_NONE 0 /* no status; not yet time */
215 #define DTRACE_STATUS_OKAY 1 /* status okay */
216 #define DTRACE_STATUS_EXITED 2 /* exit() was called; tracing stopped */
217 #define DTRACE_STATUS_FILLED 3 /* fill buffer filled; tracing stoped */
218 #define DTRACE_STATUS_STOPPED 4 /* tracing already stopped */
220 extern int dtrace_status(dtrace_hdl_t *);
223 * DTrace Formatted Output Interfaces
225 * To format output associated with a given dtrace_stmtdesc, the caller can
226 * invoke one of the following functions, passing the opaque dtsd_fmtdata and a
227 * list of record descriptions. These functions return either -1 to indicate
228 * an error, or a positive integer indicating the number of records consumed.
229 * For anonymous enablings, the consumer can use the dtrd_format member of
230 * the record description to obtain a format description. The dtfd_string
231 * member of the format description may be passed to dtrace_print{fa}_create()
232 * to create the opaque format data.
234 extern void *dtrace_printf_create(dtrace_hdl_t *, const char *);
235 extern void *dtrace_printa_create(dtrace_hdl_t *, const char *);
236 extern size_t dtrace_printf_format(dtrace_hdl_t *, void *, char *, size_t);
238 extern int dtrace_sprintf(dtrace_hdl_t *, FILE *, void *,
239 const dtrace_recdesc_t *, uint_t,
240 const void *, size_t);
242 extern int dtrace_fprintf(dtrace_hdl_t *, FILE *, void *,
243 const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t,
244 const void *, size_t);
246 extern int dtrace_fprinta(dtrace_hdl_t *, FILE *, void *,
247 const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t,
248 const void *, size_t);
250 extern int dtrace_system(dtrace_hdl_t *, FILE *, void *,
251 const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t,
252 const void *, size_t);
254 extern int dtrace_freopen(dtrace_hdl_t *, FILE *, void *,
255 const dtrace_probedata_t *, const dtrace_recdesc_t *, uint_t,
256 const void *, size_t);
259 * Type-specific output printing
261 * The print() action will associate a string data record that is actually the
262 * fully-qualified type name of the data traced by the DIFEXPR action. This is
263 * stored in the same 'format' record from the kernel, but we know by virtue of
264 * the fact that the action is still DIFEXPR that it is actually a reference to
267 extern int dtrace_print(dtrace_hdl_t *, FILE *, const char *,
269 extern int dtrace_format_print(dtrace_hdl_t *, FILE *, const char *,
273 * DTrace Work Interface
276 DTRACE_WORKSTATUS_ERROR = -1,
277 DTRACE_WORKSTATUS_OKAY,
278 DTRACE_WORKSTATUS_DONE
279 } dtrace_workstatus_t;
281 extern dtrace_workstatus_t dtrace_work(dtrace_hdl_t *, FILE *,
282 dtrace_consume_probe_f *, dtrace_consume_rec_f *, void *);
285 * DTrace Handler Interface
287 #define DTRACE_HANDLE_ABORT -1 /* abort current operation */
288 #define DTRACE_HANDLE_OK 0 /* handled okay; continue */
290 typedef struct dtrace_errdata {
291 dtrace_hdl_t *dteda_handle; /* handle to DTrace library */
292 dtrace_eprobedesc_t *dteda_edesc; /* enabled probe inducing err */
293 dtrace_probedesc_t *dteda_pdesc; /* probe inducing error */
294 processorid_t dteda_cpu; /* CPU of error */
295 int dteda_action; /* action inducing error */
296 int dteda_offset; /* offset in DIFO of error */
297 int dteda_fault; /* specific fault */
298 uint64_t dteda_addr; /* address of fault, if any */
299 const char *dteda_msg; /* preconstructed message */
302 typedef int dtrace_handle_err_f(const dtrace_errdata_t *, void *);
303 extern int dtrace_handle_err(dtrace_hdl_t *, dtrace_handle_err_f *, void *);
306 DTRACEDROP_PRINCIPAL, /* drop to principal buffer */
307 DTRACEDROP_AGGREGATION, /* drop to aggregation buffer */
308 DTRACEDROP_DYNAMIC, /* dynamic drop */
309 DTRACEDROP_DYNRINSE, /* dyn drop due to rinsing */
310 DTRACEDROP_DYNDIRTY, /* dyn drop due to dirty */
311 DTRACEDROP_SPEC, /* speculative drop */
312 DTRACEDROP_SPECBUSY, /* spec drop due to busy */
313 DTRACEDROP_SPECUNAVAIL, /* spec drop due to unavail */
314 DTRACEDROP_STKSTROVERFLOW, /* stack string tab overflow */
315 DTRACEDROP_DBLERROR /* error in ERROR probe */
318 typedef struct dtrace_dropdata {
319 dtrace_hdl_t *dtdda_handle; /* handle to DTrace library */
320 processorid_t dtdda_cpu; /* CPU, if any */
321 dtrace_dropkind_t dtdda_kind; /* kind of drop */
322 uint64_t dtdda_drops; /* number of drops */
323 uint64_t dtdda_total; /* total drops */
324 const char *dtdda_msg; /* preconstructed message */
327 typedef int dtrace_handle_drop_f(const dtrace_dropdata_t *, void *);
328 extern int dtrace_handle_drop(dtrace_hdl_t *, dtrace_handle_drop_f *, void *);
330 typedef void dtrace_handle_proc_f(struct ps_prochandle *, const char *, void *);
331 extern int dtrace_handle_proc(dtrace_hdl_t *, dtrace_handle_proc_f *, void *);
333 #define DTRACE_BUFDATA_AGGKEY 0x0001 /* aggregation key */
334 #define DTRACE_BUFDATA_AGGVAL 0x0002 /* aggregation value */
335 #define DTRACE_BUFDATA_AGGFORMAT 0x0004 /* aggregation format data */
336 #define DTRACE_BUFDATA_AGGLAST 0x0008 /* last for this key/val */
338 typedef struct dtrace_bufdata {
339 dtrace_hdl_t *dtbda_handle; /* handle to DTrace library */
340 const char *dtbda_buffered; /* buffered output */
341 dtrace_probedata_t *dtbda_probe; /* probe data */
342 const dtrace_recdesc_t *dtbda_recdesc; /* record description */
343 const dtrace_aggdata_t *dtbda_aggdata; /* aggregation data, if agg. */
344 uint32_t dtbda_flags; /* flags; see above */
347 typedef int dtrace_handle_buffered_f(const dtrace_bufdata_t *, void *);
348 extern int dtrace_handle_buffered(dtrace_hdl_t *,
349 dtrace_handle_buffered_f *, void *);
351 typedef struct dtrace_setoptdata {
352 dtrace_hdl_t *dtsda_handle; /* handle to DTrace library */
353 const dtrace_probedata_t *dtsda_probe; /* probe data */
354 const char *dtsda_option; /* option that was set */
355 dtrace_optval_t dtsda_oldval; /* old value */
356 dtrace_optval_t dtsda_newval; /* new value */
357 } dtrace_setoptdata_t;
359 typedef int dtrace_handle_setopt_f(const dtrace_setoptdata_t *, void *);
360 extern int dtrace_handle_setopt(dtrace_hdl_t *,
361 dtrace_handle_setopt_f *, void *);
364 * DTrace Aggregate Interface
367 #define DTRACE_A_PERCPU 0x0001
368 #define DTRACE_A_KEEPDELTA 0x0002
369 #define DTRACE_A_ANONYMOUS 0x0004
370 #define DTRACE_A_TOTAL 0x0008
371 #define DTRACE_A_MINMAXBIN 0x0010
372 #define DTRACE_A_HASNEGATIVES 0x0020
373 #define DTRACE_A_HASPOSITIVES 0x0040
375 #define DTRACE_AGGZOOM_MAX 0.95 /* height of max bar */
377 #define DTRACE_AGGWALK_ERROR -1 /* error while processing */
378 #define DTRACE_AGGWALK_NEXT 0 /* proceed to next element */
379 #define DTRACE_AGGWALK_ABORT 1 /* abort aggregation walk */
380 #define DTRACE_AGGWALK_CLEAR 2 /* clear this element */
381 #define DTRACE_AGGWALK_NORMALIZE 3 /* normalize this element */
382 #define DTRACE_AGGWALK_DENORMALIZE 4 /* denormalize this element */
383 #define DTRACE_AGGWALK_REMOVE 5 /* remove this element */
385 struct dtrace_aggdata {
386 dtrace_hdl_t *dtada_handle; /* handle to DTrace library */
387 dtrace_aggdesc_t *dtada_desc; /* aggregation description */
388 dtrace_eprobedesc_t *dtada_edesc; /* enabled probe description */
389 dtrace_probedesc_t *dtada_pdesc; /* probe description */
390 caddr_t dtada_data; /* pointer to raw data */
391 uint64_t dtada_normal; /* the normal -- 1 for denorm */
392 size_t dtada_size; /* total size of the data */
393 caddr_t dtada_delta; /* delta data, if available */
394 caddr_t *dtada_percpu; /* per CPU data, if avail */
395 caddr_t *dtada_percpu_delta; /* per CPU delta, if avail */
396 int64_t dtada_total; /* per agg total, if avail */
397 uint16_t dtada_minbin; /* minimum bin, if avail */
398 uint16_t dtada_maxbin; /* maximum bin, if avail */
399 uint32_t dtada_flags; /* flags */
402 typedef int dtrace_aggregate_f(const dtrace_aggdata_t *, void *);
403 typedef int dtrace_aggregate_walk_f(dtrace_hdl_t *,
404 dtrace_aggregate_f *, void *);
405 typedef int dtrace_aggregate_walk_joined_f(const dtrace_aggdata_t **,
408 extern void dtrace_aggregate_clear(dtrace_hdl_t *);
409 extern int dtrace_aggregate_snap(dtrace_hdl_t *);
410 extern int dtrace_aggregate_print(dtrace_hdl_t *, FILE *,
411 dtrace_aggregate_walk_f *);
413 extern int dtrace_aggregate_walk(dtrace_hdl_t *, dtrace_aggregate_f *, void *);
415 extern int dtrace_aggregate_walk_joined(dtrace_hdl_t *,
416 dtrace_aggvarid_t *, int, dtrace_aggregate_walk_joined_f *, void *);
418 extern int dtrace_aggregate_walk_sorted(dtrace_hdl_t *,
419 dtrace_aggregate_f *, void *);
421 extern int dtrace_aggregate_walk_keysorted(dtrace_hdl_t *,
422 dtrace_aggregate_f *, void *);
424 extern int dtrace_aggregate_walk_valsorted(dtrace_hdl_t *,
425 dtrace_aggregate_f *, void *);
427 extern int dtrace_aggregate_walk_keyvarsorted(dtrace_hdl_t *,
428 dtrace_aggregate_f *, void *);
430 extern int dtrace_aggregate_walk_valvarsorted(dtrace_hdl_t *,
431 dtrace_aggregate_f *, void *);
433 extern int dtrace_aggregate_walk_keyrevsorted(dtrace_hdl_t *,
434 dtrace_aggregate_f *, void *);
436 extern int dtrace_aggregate_walk_valrevsorted(dtrace_hdl_t *,
437 dtrace_aggregate_f *, void *);
439 extern int dtrace_aggregate_walk_keyvarrevsorted(dtrace_hdl_t *,
440 dtrace_aggregate_f *, void *);
442 extern int dtrace_aggregate_walk_valvarrevsorted(dtrace_hdl_t *,
443 dtrace_aggregate_f *, void *);
445 #define DTRACE_AGD_PRINTED 0x1 /* aggregation printed in program */
448 * DTrace Process Control Interface
450 * Library clients who wish to have libdtrace create or grab processes for
451 * monitoring of their symbol table changes may use these interfaces to
452 * request that libdtrace obtain control of the process using libproc.
455 extern struct ps_prochandle *dtrace_proc_create(dtrace_hdl_t *,
456 const char *, char *const *, proc_child_func *, void *);
458 extern struct ps_prochandle *dtrace_proc_grab(dtrace_hdl_t *, pid_t, int);
459 extern void dtrace_proc_release(dtrace_hdl_t *, struct ps_prochandle *);
460 extern void dtrace_proc_continue(dtrace_hdl_t *, struct ps_prochandle *);
463 * DTrace Object, Symbol, and Type Interfaces
465 * Library clients can use libdtrace to perform symbol and C type information
466 * lookups by symbol name, symbol address, or C type name, or to lookup meta-
467 * information cached for each of the program objects in use by DTrace. The
468 * resulting struct contain pointers to arbitrary-length strings, including
469 * object, symbol, and type names, that are persistent until the next call to
470 * dtrace_update(). Once dtrace_update() is called, any cached values must
471 * be flushed and not used subsequently by the client program.
474 #define DTRACE_OBJ_EXEC ((const char *)0L) /* primary executable file */
475 #define DTRACE_OBJ_RTLD ((const char *)1L) /* run-time link-editor */
476 #define DTRACE_OBJ_CDEFS ((const char *)2L) /* C include definitions */
477 #define DTRACE_OBJ_DDEFS ((const char *)3L) /* D program definitions */
478 #define DTRACE_OBJ_EVERY ((const char *)-1L) /* all known objects */
479 #define DTRACE_OBJ_KMODS ((const char *)-2L) /* all kernel objects */
480 #define DTRACE_OBJ_UMODS ((const char *)-3L) /* all user objects */
482 typedef struct dtrace_objinfo {
483 const char *dto_name; /* object file scope name */
484 const char *dto_file; /* object file path (if any) */
485 int dto_id; /* object file id (if any) */
486 uint_t dto_flags; /* object flags (see below) */
487 GElf_Addr dto_text_va; /* address of text section */
488 GElf_Xword dto_text_size; /* size of text section */
489 GElf_Addr dto_data_va; /* address of data section */
490 GElf_Xword dto_data_size; /* size of data section */
491 GElf_Addr dto_bss_va; /* address of BSS */
492 GElf_Xword dto_bss_size; /* size of BSS */
495 #define DTRACE_OBJ_F_KERNEL 0x1 /* object is a kernel module */
496 #define DTRACE_OBJ_F_PRIMARY 0x2 /* object is a primary module */
498 typedef int dtrace_obj_f(dtrace_hdl_t *, const dtrace_objinfo_t *, void *);
500 extern int dtrace_object_iter(dtrace_hdl_t *, dtrace_obj_f *, void *);
501 extern int dtrace_object_info(dtrace_hdl_t *, const char *, dtrace_objinfo_t *);
503 typedef struct dtrace_syminfo {
504 const char *dts_object; /* object name */
505 const char *dts_name; /* symbol name */
506 ulong_t dts_id; /* symbol id */
509 extern int dtrace_lookup_by_name(dtrace_hdl_t *, const char *, const char *,
510 GElf_Sym *, dtrace_syminfo_t *);
512 extern int dtrace_lookup_by_addr(dtrace_hdl_t *, GElf_Addr addr,
513 GElf_Sym *, dtrace_syminfo_t *);
515 typedef struct dtrace_typeinfo {
516 const char *dtt_object; /* object containing type */
517 ctf_file_t *dtt_ctfp; /* CTF container handle */
518 ctf_id_t dtt_type; /* CTF type identifier */
519 uint_t dtt_flags; /* Misc. flags */
522 #define DTT_FL_USER 0x1 /* user type */
524 extern int dtrace_lookup_by_type(dtrace_hdl_t *, const char *, const char *,
525 dtrace_typeinfo_t *);
527 extern int dtrace_symbol_type(dtrace_hdl_t *, const GElf_Sym *,
528 const dtrace_syminfo_t *, dtrace_typeinfo_t *);
530 extern int dtrace_type_strcompile(dtrace_hdl_t *,
531 const char *, dtrace_typeinfo_t *);
533 extern int dtrace_type_fcompile(dtrace_hdl_t *,
534 FILE *, dtrace_typeinfo_t *);
536 extern struct dt_node *dt_compile_sugar(dtrace_hdl_t *,
541 * DTrace Probe Interface
543 * Library clients can use these functions to iterate over the set of available
544 * probe definitions and inquire as to their attributes. The probe iteration
545 * interfaces report probes that are declared as well as those from dtrace(7D).
547 typedef struct dtrace_probeinfo {
548 dtrace_attribute_t dtp_attr; /* name attributes */
549 dtrace_attribute_t dtp_arga; /* arg attributes */
550 const dtrace_typeinfo_t *dtp_argv; /* arg types */
551 int dtp_argc; /* arg count */
552 } dtrace_probeinfo_t;
554 typedef int dtrace_probe_f(dtrace_hdl_t *, const dtrace_probedesc_t *, void *);
556 extern int dtrace_probe_iter(dtrace_hdl_t *,
557 const dtrace_probedesc_t *pdp, dtrace_probe_f *, void *);
559 extern int dtrace_probe_info(dtrace_hdl_t *,
560 const dtrace_probedesc_t *, dtrace_probeinfo_t *);
563 * DTrace Vector Interface
565 * The DTrace library normally speaks directly to dtrace(7D). However,
566 * this communication may be vectored elsewhere. Consumers who wish to
567 * perform a vectored open must fill in the vector, and use the dtrace_vopen()
568 * entry point to obtain a library handle.
570 struct dtrace_vector {
572 int (*dtv_ioctl)(void *, int, void *);
574 int (*dtv_ioctl)(void *, u_long, void *);
576 int (*dtv_lookup_by_addr)(void *, GElf_Addr, GElf_Sym *,
578 int (*dtv_status)(void *, processorid_t);
579 long (*dtv_sysconf)(void *, int);
583 * DTrace Utility Functions
585 * Library clients can use these functions to convert addresses strings, to
586 * convert between string and integer probe descriptions and the
587 * dtrace_probedesc_t representation, and to perform similar conversions on
588 * stability attributes.
590 extern int dtrace_addr2str(dtrace_hdl_t *, uint64_t, char *, int);
591 extern int dtrace_uaddr2str(dtrace_hdl_t *, pid_t, uint64_t, char *, int);
593 extern int dtrace_xstr2desc(dtrace_hdl_t *, dtrace_probespec_t,
594 const char *, int, char *const [], dtrace_probedesc_t *);
596 extern int dtrace_str2desc(dtrace_hdl_t *, dtrace_probespec_t,
597 const char *, dtrace_probedesc_t *);
599 extern int dtrace_id2desc(dtrace_hdl_t *, dtrace_id_t, dtrace_probedesc_t *);
601 #define DTRACE_DESC2STR_MAX 1024 /* min buf size for dtrace_desc2str() */
603 extern char *dtrace_desc2str(const dtrace_probedesc_t *, char *, size_t);
605 #define DTRACE_ATTR2STR_MAX 64 /* min buf size for dtrace_attr2str() */
607 extern char *dtrace_attr2str(dtrace_attribute_t, char *, size_t);
608 extern int dtrace_str2attr(const char *, dtrace_attribute_t *);
610 extern const char *dtrace_stability_name(dtrace_stability_t);
611 extern const char *dtrace_class_name(dtrace_class_t);
613 extern int dtrace_provider_modules(dtrace_hdl_t *, const char **, int);
615 extern const char *const _dtrace_version;
616 extern int _dtrace_debug;
623 #define _SC_CPUID_MAX _SC_NPROCESSORS_CONF
624 #define _SC_NPROCESSORS_MAX _SC_NPROCESSORS_CONF
628 * Values for the dt_oformat property.
630 #define DTRACE_OFORMAT_TEXT 0
631 #define DTRACE_OFORMAT_STRUCTURED 1
633 extern int dtrace_oformat_configure(dtrace_hdl_t *);
634 extern int dtrace_oformat(dtrace_hdl_t *);
635 extern void dtrace_set_outfp(const FILE *);
636 extern void dtrace_oformat_setup(dtrace_hdl_t *);
637 extern void dtrace_oformat_teardown(dtrace_hdl_t *);
638 extern void dtrace_oformat_probe(dtrace_hdl_t *, const dtrace_probedata_t *,
639 processorid_t, dtrace_probedesc_t *);
641 #endif /* _DTRACE_H */