xref: /illumos-gate/usr/src/cmd/stat/kstat/kstat.c (revision 5918f984c877663f045498a174106df2e489ab55)
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 (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
24  * Copyright (c) 2013 David Hoeppner. All rights reserved.
25  * Copyright 2013 Nexenta Systems, Inc.  All rights reserved.
26  */
27 
28 /*
29  * Display kernel statistics
30  *
31  * This is a reimplementation of the perl kstat command originally found
32  * under usr/src/cmd/kstat/kstat.pl
33  *
34  * Incompatibilities:
35  *	- perl regular expressions replaced with extended REs bracketed by '/'
36  *
37  * Flags added:
38  *	-C	similar to the -p option but value is separated by a colon
39  *	-h	display help
40  *	-j	json format
41  */
42 
43 #include <assert.h>
44 #include <ctype.h>
45 #include <errno.h>
46 #include <kstat.h>
47 #include <langinfo.h>
48 #include <libgen.h>
49 #include <limits.h>
50 #include <locale.h>
51 #include <signal.h>
52 #include <stddef.h>
53 #include <stdio.h>
54 #include <stdlib.h>
55 #include <string.h>
56 #include <strings.h>
57 #include <time.h>
58 #include <unistd.h>
59 #include <sys/list.h>
60 #include <sys/time.h>
61 #include <sys/types.h>
62 
63 #include "kstat.h"
64 #include "statcommon.h"
65 
66 char	*cmdname = "kstat";	/* Name of this command */
67 int	caught_cont = 0;	/* Have caught a SIGCONT */
68 
69 static uint_t	g_timestamp_fmt = NODATE;
70 
71 /* Helper flag - header was printed already? */
72 static boolean_t g_headerflg;
73 
74 /* Saved command line options */
75 static boolean_t g_cflg = B_FALSE;
76 static boolean_t g_jflg = B_FALSE;
77 static boolean_t g_lflg = B_FALSE;
78 static boolean_t g_pflg = B_FALSE;
79 static boolean_t g_qflg = B_FALSE;
80 static ks_pattern_t	g_ks_class = {"*", 0};
81 
82 /* Return zero if a selector did match */
83 static int	g_matched = 1;
84 
85 /* Sorted list of kstat instances */
86 static list_t	instances_list;
87 static list_t	selector_list;
88 
89 int
90 main(int argc, char **argv)
91 {
92 	ks_selector_t	*nselector;
93 	ks_selector_t	*uselector;
94 	kstat_ctl_t	*kc;
95 	hrtime_t	start_n;
96 	hrtime_t	period_n;
97 	boolean_t	errflg = B_FALSE;
98 	boolean_t	nselflg = B_FALSE;
99 	boolean_t	uselflg = B_FALSE;
100 	char		*q;
101 	int		count = 1;
102 	int		infinite_cycles = 0;
103 	int		interval = 0;
104 	int		n = 0;
105 	int		c, m, tmp;
106 
107 	(void) setlocale(LC_ALL, "");
108 #if !defined(TEXT_DOMAIN)		/* Should be defined by cc -D */
109 #define	TEXT_DOMAIN "SYS_TEST"		/* Use this only if it wasn't */
110 #endif
111 	(void) textdomain(TEXT_DOMAIN);
112 
113 	/*
114 	 * Create the selector list and a dummy default selector to match
115 	 * everything. While we process the cmdline options we will add
116 	 * selectors to this list.
117 	 */
118 	list_create(&selector_list, sizeof (ks_selector_t),
119 	    offsetof(ks_selector_t, ks_next));
120 
121 	nselector = new_selector();
122 
123 	/*
124 	 * Parse named command line arguments.
125 	 */
126 	while ((c = getopt(argc, argv, "h?CqjlpT:m:i:n:s:c:")) != EOF)
127 		switch (c) {
128 		case 'h':
129 		case '?':
130 			usage();
131 			exit(0);
132 			break;
133 		case 'C':
134 			g_pflg = g_cflg = B_TRUE;
135 			break;
136 		case 'q':
137 			g_qflg = B_TRUE;
138 			break;
139 		case 'j':
140 			g_jflg = B_TRUE;
141 			break;
142 		case 'l':
143 			g_pflg = g_lflg = B_TRUE;
144 			break;
145 		case 'p':
146 			g_pflg = B_TRUE;
147 			break;
148 		case 'T':
149 			switch (*optarg) {
150 			case 'd':
151 				g_timestamp_fmt = DDATE;
152 				break;
153 			case 'u':
154 				g_timestamp_fmt = UDATE;
155 				break;
156 			default:
157 				errflg = B_TRUE;
158 			}
159 			break;
160 		case 'm':
161 			nselflg = B_TRUE;
162 			nselector->ks_module.pstr =
163 			    (char *)ks_safe_strdup(optarg);
164 			break;
165 		case 'i':
166 			nselflg = B_TRUE;
167 			nselector->ks_instance.pstr =
168 			    (char *)ks_safe_strdup(optarg);
169 			break;
170 		case 'n':
171 			nselflg = B_TRUE;
172 			nselector->ks_name.pstr =
173 			    (char *)ks_safe_strdup(optarg);
174 			break;
175 		case 's':
176 			nselflg = B_TRUE;
177 			nselector->ks_statistic.pstr =
178 			    (char *)ks_safe_strdup(optarg);
179 			break;
180 		case 'c':
181 			g_ks_class.pstr =
182 			    (char *)ks_safe_strdup(optarg);
183 			break;
184 		default:
185 			errflg = B_TRUE;
186 			break;
187 		}
188 
189 	if (g_qflg && (g_jflg || g_pflg)) {
190 		(void) fprintf(stderr, gettext(
191 		    "-q and -lpj are mutually exclusive\n"));
192 		errflg = B_TRUE;
193 	}
194 
195 	if (errflg) {
196 		usage();
197 		exit(2);
198 	}
199 
200 	argc -= optind;
201 	argv += optind;
202 
203 	/*
204 	 * Consume the rest of the command line. Parsing the
205 	 * unnamed command line arguments.
206 	 */
207 	while (argc--) {
208 		errno = 0;
209 		tmp = strtoul(*argv, &q, 10);
210 		if (tmp == ULONG_MAX && errno == ERANGE) {
211 			if (n == 0) {
212 				(void) fprintf(stderr, gettext(
213 				    "Interval is too large\n"));
214 			} else if (n == 1) {
215 				(void) fprintf(stderr, gettext(
216 				    "Count is too large\n"));
217 			}
218 			usage();
219 			exit(2);
220 		}
221 
222 		if (errno != 0 || *q != '\0') {
223 			m = 0;
224 			uselector = new_selector();
225 			while ((q = (char *)strsep(argv, ":")) != NULL) {
226 				m++;
227 				if (m > 4) {
228 					free(uselector);
229 					usage();
230 					exit(2);
231 				}
232 
233 				if (*q != '\0') {
234 					switch (m) {
235 					case 1:
236 						uselector->ks_module.pstr =
237 						    (char *)ks_safe_strdup(q);
238 						break;
239 					case 2:
240 						uselector->ks_instance.pstr =
241 						    (char *)ks_safe_strdup(q);
242 						break;
243 					case 3:
244 						uselector->ks_name.pstr =
245 						    (char *)ks_safe_strdup(q);
246 						break;
247 					case 4:
248 						uselector->ks_statistic.pstr =
249 						    (char *)ks_safe_strdup(q);
250 						break;
251 					default:
252 						assert(B_FALSE);
253 					}
254 				}
255 			}
256 
257 			uselflg = B_TRUE;
258 			list_insert_tail(&selector_list, uselector);
259 		} else {
260 			if (tmp < 1) {
261 				if (n == 0) {
262 					(void) fprintf(stderr, gettext(
263 					    "Interval must be an "
264 					    "integer >= 1"));
265 				} else if (n == 1) {
266 					(void) fprintf(stderr, gettext(
267 					    "Count must be an integer >= 1"));
268 				}
269 				usage();
270 				exit(2);
271 			} else {
272 				if (n == 0) {
273 					interval = tmp;
274 					count = -1;
275 				} else if (n == 1) {
276 					count = tmp;
277 				} else {
278 					usage();
279 					exit(2);
280 				}
281 			}
282 			n++;
283 		}
284 		argv++;
285 	}
286 
287 	/*
288 	 * Check if we founded a named selector on the cmdline.
289 	 */
290 	if (uselflg) {
291 		if (nselflg) {
292 			(void) fprintf(stderr, gettext(
293 			    "[module[:instance[:name[:statistic]]]] and "
294 			    "-m -i -n -s are mutually exclusive"));
295 			usage();
296 			exit(2);
297 		} else {
298 			free(nselector);
299 		}
300 	} else {
301 		list_insert_tail(&selector_list, nselector);
302 	}
303 
304 	assert(!list_is_empty(&selector_list));
305 
306 	list_create(&instances_list, sizeof (ks_instance_t),
307 	    offsetof(ks_instance_t, ks_next));
308 
309 	while ((kc = kstat_open()) == NULL) {
310 		if (errno == EAGAIN) {
311 			(void) poll(NULL, 0, 200);
312 		} else {
313 			perror("kstat_open");
314 			exit(3);
315 		}
316 	}
317 
318 	if (count > 1) {
319 		if (signal(SIGCONT, cont_handler) == SIG_ERR) {
320 			(void) fprintf(stderr, gettext(
321 			    "signal failed"));
322 			exit(3);
323 		}
324 	}
325 
326 	period_n = (hrtime_t)interval * NANOSEC;
327 	start_n = gethrtime();
328 
329 	while (count == -1 || count-- > 0) {
330 		ks_instances_read(kc);
331 		ks_instances_print();
332 
333 		if (interval && count) {
334 			ks_sleep_until(&start_n, period_n, infinite_cycles,
335 			    &caught_cont);
336 			(void) kstat_chain_update(kc);
337 			(void) putchar('\n');
338 		}
339 	}
340 
341 	(void) kstat_close(kc);
342 
343 	return (g_matched);
344 }
345 
346 /*
347  * Print usage.
348  */
349 static void
350 usage(void)
351 {
352 	(void) fprintf(stderr, gettext(
353 	    "Usage:\n"
354 	    "kstat [ -Cjlpq ] [ -T d|u ] [ -c class ]\n"
355 	    "      [ -m module ] [ -i instance ] [ -n name ] [ -s statistic ]\n"
356 	    "      [ interval [ count ] ]\n"
357 	    "kstat [ -Cjlpq ] [ -T d|u ] [ -c class ]\n"
358 	    "      [ module[:instance[:name[:statistic]]] ... ]\n"
359 	    "      [ interval [ count ] ]\n"));
360 }
361 
362 /*
363  * Sort compare function.
364  */
365 static int
366 compare_instances(ks_instance_t *l_arg, ks_instance_t *r_arg)
367 {
368 	int	rval;
369 
370 	rval = strcasecmp(l_arg->ks_module, r_arg->ks_module);
371 	if (rval == 0) {
372 		if (l_arg->ks_instance == r_arg->ks_instance) {
373 			return (strcasecmp(l_arg->ks_name, r_arg->ks_name));
374 		} else if (l_arg->ks_instance < r_arg->ks_instance) {
375 			return (-1);
376 		} else {
377 			return (1);
378 		}
379 	} else {
380 		return (rval);
381 	}
382 }
383 
384 static char *
385 ks_safe_strdup(char *str)
386 {
387 	char	*ret;
388 
389 	if (str == NULL) {
390 		return (NULL);
391 	}
392 
393 	while ((ret = strdup(str)) == NULL) {
394 		if (errno == EAGAIN) {
395 			(void) poll(NULL, 0, 200);
396 		} else {
397 			perror("strdup");
398 			exit(3);
399 		}
400 	}
401 
402 	return (ret);
403 }
404 
405 static void
406 ks_sleep_until(hrtime_t *wakeup, hrtime_t interval, int forever,
407     int *caught_cont)
408 {
409 	hrtime_t	now, pause, pause_left;
410 	struct timespec	pause_tv;
411 	int		status;
412 
413 	now = gethrtime();
414 	pause = *wakeup + interval - now;
415 
416 	if (pause <= 0 || pause < (interval / 4)) {
417 		if (forever || *caught_cont) {
418 			*wakeup = now + interval;
419 			pause = interval;
420 		} else {
421 			pause = interval / 2;
422 			*wakeup += interval;
423 		}
424 	} else {
425 		*wakeup += interval;
426 	}
427 
428 	if (pause < 1000) {
429 		return;
430 	}
431 
432 	pause_left = pause;
433 	do {
434 		pause_tv.tv_sec = pause_left / NANOSEC;
435 		pause_tv.tv_nsec = pause_left % NANOSEC;
436 		status = nanosleep(&pause_tv, (struct timespec *)NULL);
437 		if (status < 0) {
438 			if (errno == EINTR) {
439 				now = gethrtime();
440 				pause_left = *wakeup - now;
441 				if (pause_left < 1000) {
442 					return;
443 				}
444 			} else {
445 				perror("nanosleep");
446 				exit(3);
447 			}
448 		}
449 	} while (status != 0);
450 }
451 
452 /*
453  * Inserts an instance in the per selector list.
454  */
455 static void
456 nvpair_insert(ks_instance_t *ksi, char *name, ks_value_t *value,
457     uchar_t data_type)
458 {
459 	ks_nvpair_t	*instance;
460 	ks_nvpair_t	*tmp;
461 
462 	instance = (ks_nvpair_t *)malloc(sizeof (ks_nvpair_t));
463 	if (instance == NULL) {
464 		perror("malloc");
465 		exit(3);
466 	}
467 
468 	(void) strlcpy(instance->name, name, KSTAT_STRLEN);
469 	(void) memcpy(&instance->value, value, sizeof (ks_value_t));
470 	instance->data_type = data_type;
471 
472 	tmp = list_head(&ksi->ks_nvlist);
473 	while (tmp != NULL && strcasecmp(instance->name, tmp->name) > 0)
474 		tmp = list_next(&ksi->ks_nvlist, tmp);
475 
476 	list_insert_before(&ksi->ks_nvlist, tmp, instance);
477 }
478 
479 /*
480  * Allocates a new all-matching selector.
481  */
482 static ks_selector_t *
483 new_selector(void)
484 {
485 	ks_selector_t	*selector;
486 
487 	selector = (ks_selector_t *)malloc(sizeof (ks_selector_t));
488 	if (selector == NULL) {
489 		perror("malloc");
490 		exit(3);
491 	}
492 
493 	list_link_init(&selector->ks_next);
494 
495 	selector->ks_module.pstr = "*";
496 	selector->ks_instance.pstr = "*";
497 	selector->ks_name.pstr = "*";
498 	selector->ks_statistic.pstr = "*";
499 
500 	return (selector);
501 }
502 
503 /*
504  * This function was taken from the perl kstat module code - please
505  * see for further comments there.
506  */
507 static kstat_raw_reader_t
508 lookup_raw_kstat_fn(char *module, char *name)
509 {
510 	char		key[KSTAT_STRLEN * 2];
511 	register char 	*f, *t;
512 	int		n = 0;
513 
514 	for (f = module, t = key; *f != '\0'; f++, t++) {
515 		while (*f != '\0' && isdigit(*f))
516 			f++;
517 		*t = *f;
518 	}
519 	*t++ = ':';
520 
521 	for (f = name; *f != '\0'; f++, t++) {
522 		while (*f != '\0' && isdigit(*f))
523 			f++;
524 		*t = *f;
525 	}
526 	*t = '\0';
527 
528 	while (ks_raw_lookup[n].fn != NULL) {
529 		if (strncmp(ks_raw_lookup[n].name, key, strlen(key)) == 0)
530 			return (ks_raw_lookup[n].fn);
531 		n++;
532 	}
533 
534 	return (0);
535 }
536 
537 /*
538  * Match a string against a shell glob or extended regular expression.
539  */
540 static boolean_t
541 ks_match(const char *str, ks_pattern_t *pattern)
542 {
543 	int	regcode;
544 	char	*regstr;
545 	char	*errbuf;
546 	size_t	bufsz;
547 
548 	if (pattern->pstr != NULL && gmatch(pattern->pstr, "/*/") != 0) {
549 		/* All regex patterns are strdup'd copies */
550 		regstr = pattern->pstr + 1;
551 		*(strrchr(regstr, '/')) = '\0';
552 
553 		regcode = regcomp(&pattern->preg, regstr,
554 		    REG_EXTENDED | REG_NOSUB);
555 		if (regcode != 0) {
556 			bufsz = regerror(regcode, NULL, NULL, 0);
557 			if (bufsz != 0) {
558 				errbuf = malloc(bufsz);
559 				if (errbuf == NULL) {
560 					perror("malloc");
561 					exit(3);
562 				}
563 				(void) regerror(regcode, NULL, errbuf, bufsz);
564 				(void) fprintf(stderr, "kstat: %s\n", errbuf);
565 			}
566 			usage();
567 			exit(2);
568 		}
569 
570 		pattern->pstr = NULL;
571 	}
572 
573 	if (pattern->pstr == NULL) {
574 		return (regexec(&pattern->preg, str, 0, NULL, 0) == 0);
575 	}
576 
577 	return ((gmatch(str, pattern->pstr) != 0));
578 }
579 
580 /*
581  * Iterate over all kernel statistics and save matches.
582  */
583 static void
584 ks_instances_read(kstat_ctl_t *kc)
585 {
586 	kstat_raw_reader_t save_raw = NULL;
587 	kid_t		id;
588 	ks_selector_t	*selector;
589 	ks_instance_t	*ksi;
590 	ks_instance_t	*tmp;
591 	kstat_t		*kp;
592 	boolean_t	skip;
593 
594 	for (kp = kc->kc_chain; kp != NULL; kp = kp->ks_next) {
595 		/* Don't bother storing the kstat headers */
596 		if (strncmp(kp->ks_name, "kstat_", 6) == 0) {
597 			continue;
598 		}
599 
600 		/* Don't bother storing raw stats we don't understand */
601 		if (kp->ks_type == KSTAT_TYPE_RAW) {
602 			save_raw = lookup_raw_kstat_fn(kp->ks_module,
603 			    kp->ks_name);
604 			if (save_raw == NULL) {
605 #ifdef REPORT_UNKNOWN
606 				(void) fprintf(stderr,
607 				    "Unknown kstat type %s:%d:%s - "
608 				    "%d of size %d\n", kp->ks_module,
609 				    kp->ks_instance, kp->ks_name,
610 				    kp->ks_ndata, kp->ks_data_size);
611 #endif
612 				continue;
613 			}
614 		}
615 
616 		/*
617 		 * Iterate over the list of selectors and skip
618 		 * instances we dont want. We filter for statistics
619 		 * later, as we dont know them yet.
620 		 */
621 		skip = B_TRUE;
622 		selector = list_head(&selector_list);
623 		while (selector != NULL) {
624 			if (ks_match(kp->ks_module, &selector->ks_module) ||
625 			    ks_match(kp->ks_name, &selector->ks_name)) {
626 				skip = B_FALSE;
627 				break;
628 			}
629 			selector = list_next(&selector_list, selector);
630 		}
631 
632 		if (skip) {
633 			continue;
634 		}
635 
636 		/*
637 		 * Allocate a new instance and fill in the values
638 		 * we know so far.
639 		 */
640 		ksi = (ks_instance_t *)malloc(sizeof (ks_instance_t));
641 		if (ksi == NULL) {
642 			perror("malloc");
643 			exit(3);
644 		}
645 
646 		list_link_init(&ksi->ks_next);
647 
648 		(void) strlcpy(ksi->ks_module, kp->ks_module, KSTAT_STRLEN);
649 		(void) strlcpy(ksi->ks_name, kp->ks_name, KSTAT_STRLEN);
650 		(void) strlcpy(ksi->ks_class, kp->ks_class, KSTAT_STRLEN);
651 
652 		ksi->ks_instance = kp->ks_instance;
653 		ksi->ks_snaptime = kp->ks_snaptime;
654 		ksi->ks_type = kp->ks_type;
655 
656 		list_create(&ksi->ks_nvlist, sizeof (ks_nvpair_t),
657 		    offsetof(ks_nvpair_t, nv_next));
658 
659 		SAVE_HRTIME_X(ksi, "crtime", kp->ks_crtime);
660 		SAVE_HRTIME_X(ksi, "snaptime", kp->ks_snaptime);
661 		if (g_pflg) {
662 			SAVE_STRING_X(ksi, "class", kp->ks_class);
663 		}
664 
665 		/* Insert this instance into a sorted list */
666 		tmp = list_head(&instances_list);
667 		while (tmp != NULL && compare_instances(ksi, tmp) > 0)
668 			tmp = list_next(&instances_list, tmp);
669 
670 		list_insert_before(&instances_list, tmp, ksi);
671 
672 		/* Read the actual statistics */
673 		id = kstat_read(kc, kp, NULL);
674 		if (id == -1) {
675 #ifdef REPORT_UNKNOWN
676 			perror("kstat_read");
677 #endif
678 			continue;
679 		}
680 
681 		switch (kp->ks_type) {
682 		case KSTAT_TYPE_RAW:
683 			save_raw(kp, ksi);
684 			break;
685 		case KSTAT_TYPE_NAMED:
686 			save_named(kp, ksi);
687 			break;
688 		case KSTAT_TYPE_INTR:
689 			save_intr(kp, ksi);
690 			break;
691 		case KSTAT_TYPE_IO:
692 			save_io(kp, ksi);
693 			break;
694 		case KSTAT_TYPE_TIMER:
695 			save_timer(kp, ksi);
696 			break;
697 		default:
698 			assert(B_FALSE); /* Invalid type */
699 			break;
700 		}
701 	}
702 }
703 
704 /*
705  * Print the value of a name-value pair.
706  */
707 static void
708 ks_value_print(ks_nvpair_t *nvpair)
709 {
710 	switch (nvpair->data_type) {
711 	case KSTAT_DATA_CHAR:
712 		(void) fprintf(stdout, "%s", nvpair->value.c);
713 		break;
714 	case KSTAT_DATA_INT32:
715 		(void) fprintf(stdout, "%d", nvpair->value.i32);
716 		break;
717 	case KSTAT_DATA_UINT32:
718 		(void) fprintf(stdout, "%u", nvpair->value.ui32);
719 		break;
720 	case KSTAT_DATA_INT64:
721 		(void) fprintf(stdout, "%lld", nvpair->value.i64);
722 		break;
723 	case KSTAT_DATA_UINT64:
724 		(void) fprintf(stdout, "%llu", nvpair->value.ui64);
725 		break;
726 	case KSTAT_DATA_STRING:
727 		(void) fprintf(stdout, "%s", KSTAT_NAMED_STR_PTR(nvpair));
728 		break;
729 	case KSTAT_DATA_HRTIME:
730 		if (nvpair->value.ui64 == 0)
731 			(void) fprintf(stdout, "0");
732 		else
733 			(void) fprintf(stdout, "%.9f",
734 			    nvpair->value.ui64 / 1000000000.0);
735 		break;
736 	default:
737 		assert(B_FALSE);
738 	}
739 }
740 
741 /*
742  * Print a single instance.
743  */
744 static void
745 ks_instance_print(ks_instance_t *ksi, ks_nvpair_t *nvpair)
746 {
747 	if (g_headerflg) {
748 		if (!g_pflg) {
749 			(void) fprintf(stdout, DFLT_FMT,
750 			    ksi->ks_module, ksi->ks_instance,
751 			    ksi->ks_name, ksi->ks_class);
752 		}
753 		g_headerflg = B_FALSE;
754 	}
755 
756 	if (g_pflg) {
757 		(void) fprintf(stdout, KS_PFMT,
758 		    ksi->ks_module, ksi->ks_instance,
759 		    ksi->ks_name, nvpair->name);
760 		if (!g_lflg) {
761 			(void) putchar(g_cflg ? ':': '\t');
762 			ks_value_print(nvpair);
763 		}
764 	} else {
765 		(void) fprintf(stdout, KS_DFMT, nvpair->name);
766 		ks_value_print(nvpair);
767 	}
768 
769 	(void) putchar('\n');
770 }
771 
772 /*
773  * Print a single instance in JSON format.
774  */
775 static void
776 ks_instance_print_json(ks_instance_t *ksi, ks_nvpair_t *nvpair)
777 {
778 	if (g_headerflg) {
779 		(void) fprintf(stdout, JSON_FMT,
780 		    ksi->ks_module, ksi->ks_instance,
781 		    ksi->ks_name, ksi->ks_class,
782 		    ksi->ks_type);
783 
784 		if (ksi->ks_snaptime == 0)
785 			(void) fprintf(stdout, "\t\"snaptime\": 0,\n");
786 		else
787 			(void) fprintf(stdout, "\t\"snaptime\": %.9f,\n",
788 			    ksi->ks_snaptime / 1000000000.0);
789 
790 		(void) fprintf(stdout, "\t\"data\": {\n");
791 
792 		g_headerflg = B_FALSE;
793 	}
794 
795 	(void) fprintf(stdout, KS_JFMT, nvpair->name);
796 	if (nvpair->data_type == KSTAT_DATA_STRING) {
797 		(void) putchar('\"');
798 		ks_value_print(nvpair);
799 		(void) putchar('\"');
800 	} else {
801 		ks_value_print(nvpair);
802 	}
803 	if (nvpair != list_tail(&ksi->ks_nvlist))
804 		(void) putchar(',');
805 
806 	(void) putchar('\n');
807 }
808 
809 /*
810  * Print all instances.
811  */
812 static void
813 ks_instances_print(void)
814 {
815 	ks_selector_t	*selector;
816 	ks_instance_t	*ksi, *ktmp;
817 	ks_nvpair_t	*nvpair, *ntmp;
818 	void		(*ks_print_fn)(ks_instance_t *, ks_nvpair_t *);
819 	char		*ks_number;
820 
821 	if (g_timestamp_fmt != NODATE)
822 		print_timestamp(g_timestamp_fmt);
823 
824 	if (g_jflg) {
825 		ks_print_fn = &ks_instance_print_json;
826 		(void) putchar('[');
827 	} else {
828 		ks_print_fn = &ks_instance_print;
829 	}
830 
831 	/* Iterate over each selector */
832 	selector = list_head(&selector_list);
833 	while (selector != NULL) {
834 
835 		/* Iterate over each instance */
836 		for (ksi = list_head(&instances_list); ksi != NULL;
837 		    ksi = list_next(&instances_list, ksi)) {
838 
839 			(void) asprintf(&ks_number, "%d", ksi->ks_instance);
840 			if (!(ks_match(ksi->ks_module, &selector->ks_module) &&
841 			    ks_match(ksi->ks_name, &selector->ks_name) &&
842 			    ks_match(ks_number, &selector->ks_instance) &&
843 			    ks_match(ksi->ks_class, &g_ks_class))) {
844 				free(ks_number);
845 				continue;
846 			}
847 
848 			free(ks_number);
849 
850 			/* Finally iterate over each statistic */
851 			g_headerflg = B_TRUE;
852 			for (nvpair = list_head(&ksi->ks_nvlist);
853 			    nvpair != NULL;
854 			    nvpair = list_next(&ksi->ks_nvlist, nvpair)) {
855 				if (!ks_match(nvpair->name,
856 				    &selector->ks_statistic))
857 					continue;
858 
859 				g_matched = 0;
860 				if (!g_qflg)
861 					(*ks_print_fn)(ksi, nvpair);
862 			}
863 
864 			if (!g_headerflg) {
865 				if (g_jflg) {
866 					(void) fprintf(stdout, "\t}\n}");
867 					if (ksi != list_tail(&instances_list))
868 						(void) putchar(',');
869 				} else if (!g_pflg) {
870 					(void) putchar('\n');
871 				}
872 			}
873 		}
874 
875 		selector = list_next(&selector_list, selector);
876 	}
877 
878 	if (g_jflg)
879 		(void) fprintf(stdout, "]\n");
880 
881 	(void) fflush(stdout);
882 
883 	/* Free the instances list */
884 	ksi = list_head(&instances_list);
885 	while (ksi != NULL) {
886 		nvpair = list_head(&ksi->ks_nvlist);
887 		while (nvpair != NULL) {
888 			ntmp = nvpair;
889 			nvpair = list_next(&ksi->ks_nvlist, nvpair);
890 			list_remove(&ksi->ks_nvlist, ntmp);
891 			if (ntmp->data_type == KSTAT_DATA_STRING)
892 				free(ntmp->value.str.addr.ptr);
893 			free(ntmp);
894 		}
895 
896 		ktmp = ksi;
897 		ksi = list_next(&instances_list, ksi);
898 		list_remove(&instances_list, ktmp);
899 		list_destroy(&ktmp->ks_nvlist);
900 		free(ktmp);
901 	}
902 }
903 
904 static void
905 save_cpu_stat(kstat_t *kp, ks_instance_t *ksi)
906 {
907 	cpu_stat_t	*stat;
908 	cpu_sysinfo_t	*sysinfo;
909 	cpu_syswait_t	*syswait;
910 	cpu_vminfo_t	*vminfo;
911 
912 	stat = (cpu_stat_t *)(kp->ks_data);
913 	sysinfo = &stat->cpu_sysinfo;
914 	syswait = &stat->cpu_syswait;
915 	vminfo  = &stat->cpu_vminfo;
916 
917 	SAVE_UINT32_X(ksi, "idle", sysinfo->cpu[CPU_IDLE]);
918 	SAVE_UINT32_X(ksi, "user", sysinfo->cpu[CPU_USER]);
919 	SAVE_UINT32_X(ksi, "kernel", sysinfo->cpu[CPU_KERNEL]);
920 	SAVE_UINT32_X(ksi, "wait", sysinfo->cpu[CPU_WAIT]);
921 	SAVE_UINT32_X(ksi, "wait_io", sysinfo->wait[W_IO]);
922 	SAVE_UINT32_X(ksi, "wait_swap", sysinfo->wait[W_SWAP]);
923 	SAVE_UINT32_X(ksi, "wait_pio", sysinfo->wait[W_PIO]);
924 	SAVE_UINT32(ksi, sysinfo, bread);
925 	SAVE_UINT32(ksi, sysinfo, bwrite);
926 	SAVE_UINT32(ksi, sysinfo, lread);
927 	SAVE_UINT32(ksi, sysinfo, lwrite);
928 	SAVE_UINT32(ksi, sysinfo, phread);
929 	SAVE_UINT32(ksi, sysinfo, phwrite);
930 	SAVE_UINT32(ksi, sysinfo, pswitch);
931 	SAVE_UINT32(ksi, sysinfo, trap);
932 	SAVE_UINT32(ksi, sysinfo, intr);
933 	SAVE_UINT32(ksi, sysinfo, syscall);
934 	SAVE_UINT32(ksi, sysinfo, sysread);
935 	SAVE_UINT32(ksi, sysinfo, syswrite);
936 	SAVE_UINT32(ksi, sysinfo, sysfork);
937 	SAVE_UINT32(ksi, sysinfo, sysvfork);
938 	SAVE_UINT32(ksi, sysinfo, sysexec);
939 	SAVE_UINT32(ksi, sysinfo, readch);
940 	SAVE_UINT32(ksi, sysinfo, writech);
941 	SAVE_UINT32(ksi, sysinfo, rcvint);
942 	SAVE_UINT32(ksi, sysinfo, xmtint);
943 	SAVE_UINT32(ksi, sysinfo, mdmint);
944 	SAVE_UINT32(ksi, sysinfo, rawch);
945 	SAVE_UINT32(ksi, sysinfo, canch);
946 	SAVE_UINT32(ksi, sysinfo, outch);
947 	SAVE_UINT32(ksi, sysinfo, msg);
948 	SAVE_UINT32(ksi, sysinfo, sema);
949 	SAVE_UINT32(ksi, sysinfo, namei);
950 	SAVE_UINT32(ksi, sysinfo, ufsiget);
951 	SAVE_UINT32(ksi, sysinfo, ufsdirblk);
952 	SAVE_UINT32(ksi, sysinfo, ufsipage);
953 	SAVE_UINT32(ksi, sysinfo, ufsinopage);
954 	SAVE_UINT32(ksi, sysinfo, inodeovf);
955 	SAVE_UINT32(ksi, sysinfo, fileovf);
956 	SAVE_UINT32(ksi, sysinfo, procovf);
957 	SAVE_UINT32(ksi, sysinfo, intrthread);
958 	SAVE_UINT32(ksi, sysinfo, intrblk);
959 	SAVE_UINT32(ksi, sysinfo, idlethread);
960 	SAVE_UINT32(ksi, sysinfo, inv_swtch);
961 	SAVE_UINT32(ksi, sysinfo, nthreads);
962 	SAVE_UINT32(ksi, sysinfo, cpumigrate);
963 	SAVE_UINT32(ksi, sysinfo, xcalls);
964 	SAVE_UINT32(ksi, sysinfo, mutex_adenters);
965 	SAVE_UINT32(ksi, sysinfo, rw_rdfails);
966 	SAVE_UINT32(ksi, sysinfo, rw_wrfails);
967 	SAVE_UINT32(ksi, sysinfo, modload);
968 	SAVE_UINT32(ksi, sysinfo, modunload);
969 	SAVE_UINT32(ksi, sysinfo, bawrite);
970 #ifdef	STATISTICS	/* see header file */
971 	SAVE_UINT32(ksi, sysinfo, rw_enters);
972 	SAVE_UINT32(ksi, sysinfo, win_uo_cnt);
973 	SAVE_UINT32(ksi, sysinfo, win_uu_cnt);
974 	SAVE_UINT32(ksi, sysinfo, win_so_cnt);
975 	SAVE_UINT32(ksi, sysinfo, win_su_cnt);
976 	SAVE_UINT32(ksi, sysinfo, win_suo_cnt);
977 #endif
978 
979 	SAVE_INT32(ksi, syswait, iowait);
980 	SAVE_INT32(ksi, syswait, swap);
981 	SAVE_INT32(ksi, syswait, physio);
982 
983 	SAVE_UINT32(ksi, vminfo, pgrec);
984 	SAVE_UINT32(ksi, vminfo, pgfrec);
985 	SAVE_UINT32(ksi, vminfo, pgin);
986 	SAVE_UINT32(ksi, vminfo, pgpgin);
987 	SAVE_UINT32(ksi, vminfo, pgout);
988 	SAVE_UINT32(ksi, vminfo, pgpgout);
989 	SAVE_UINT32(ksi, vminfo, swapin);
990 	SAVE_UINT32(ksi, vminfo, pgswapin);
991 	SAVE_UINT32(ksi, vminfo, swapout);
992 	SAVE_UINT32(ksi, vminfo, pgswapout);
993 	SAVE_UINT32(ksi, vminfo, zfod);
994 	SAVE_UINT32(ksi, vminfo, dfree);
995 	SAVE_UINT32(ksi, vminfo, scan);
996 	SAVE_UINT32(ksi, vminfo, rev);
997 	SAVE_UINT32(ksi, vminfo, hat_fault);
998 	SAVE_UINT32(ksi, vminfo, as_fault);
999 	SAVE_UINT32(ksi, vminfo, maj_fault);
1000 	SAVE_UINT32(ksi, vminfo, cow_fault);
1001 	SAVE_UINT32(ksi, vminfo, prot_fault);
1002 	SAVE_UINT32(ksi, vminfo, softlock);
1003 	SAVE_UINT32(ksi, vminfo, kernel_asflt);
1004 	SAVE_UINT32(ksi, vminfo, pgrrun);
1005 	SAVE_UINT32(ksi, vminfo, execpgin);
1006 	SAVE_UINT32(ksi, vminfo, execpgout);
1007 	SAVE_UINT32(ksi, vminfo, execfree);
1008 	SAVE_UINT32(ksi, vminfo, anonpgin);
1009 	SAVE_UINT32(ksi, vminfo, anonpgout);
1010 	SAVE_UINT32(ksi, vminfo, anonfree);
1011 	SAVE_UINT32(ksi, vminfo, fspgin);
1012 	SAVE_UINT32(ksi, vminfo, fspgout);
1013 	SAVE_UINT32(ksi, vminfo, fsfree);
1014 }
1015 
1016 static void
1017 save_var(kstat_t *kp, ks_instance_t *ksi)
1018 {
1019 	struct var	*var = (struct var *)(kp->ks_data);
1020 
1021 	assert(kp->ks_data_size == sizeof (struct var));
1022 
1023 	SAVE_INT32(ksi, var, v_buf);
1024 	SAVE_INT32(ksi, var, v_call);
1025 	SAVE_INT32(ksi, var, v_proc);
1026 	SAVE_INT32(ksi, var, v_maxupttl);
1027 	SAVE_INT32(ksi, var, v_nglobpris);
1028 	SAVE_INT32(ksi, var, v_maxsyspri);
1029 	SAVE_INT32(ksi, var, v_clist);
1030 	SAVE_INT32(ksi, var, v_maxup);
1031 	SAVE_INT32(ksi, var, v_hbuf);
1032 	SAVE_INT32(ksi, var, v_hmask);
1033 	SAVE_INT32(ksi, var, v_pbuf);
1034 	SAVE_INT32(ksi, var, v_sptmap);
1035 	SAVE_INT32(ksi, var, v_maxpmem);
1036 	SAVE_INT32(ksi, var, v_autoup);
1037 	SAVE_INT32(ksi, var, v_bufhwm);
1038 }
1039 
1040 static void
1041 save_ncstats(kstat_t *kp, ks_instance_t *ksi)
1042 {
1043 	struct ncstats	*ncstats = (struct ncstats *)(kp->ks_data);
1044 
1045 	assert(kp->ks_data_size == sizeof (struct ncstats));
1046 
1047 	SAVE_INT32(ksi, ncstats, hits);
1048 	SAVE_INT32(ksi, ncstats, misses);
1049 	SAVE_INT32(ksi, ncstats, enters);
1050 	SAVE_INT32(ksi, ncstats, dbl_enters);
1051 	SAVE_INT32(ksi, ncstats, long_enter);
1052 	SAVE_INT32(ksi, ncstats, long_look);
1053 	SAVE_INT32(ksi, ncstats, move_to_front);
1054 	SAVE_INT32(ksi, ncstats, purges);
1055 }
1056 
1057 static void
1058 save_sysinfo(kstat_t *kp, ks_instance_t *ksi)
1059 {
1060 	sysinfo_t	*sysinfo = (sysinfo_t *)(kp->ks_data);
1061 
1062 	assert(kp->ks_data_size == sizeof (sysinfo_t));
1063 
1064 	SAVE_UINT32(ksi, sysinfo, updates);
1065 	SAVE_UINT32(ksi, sysinfo, runque);
1066 	SAVE_UINT32(ksi, sysinfo, runocc);
1067 	SAVE_UINT32(ksi, sysinfo, swpque);
1068 	SAVE_UINT32(ksi, sysinfo, swpocc);
1069 	SAVE_UINT32(ksi, sysinfo, waiting);
1070 }
1071 
1072 static void
1073 save_vminfo(kstat_t *kp, ks_instance_t *ksi)
1074 {
1075 	vminfo_t	*vminfo = (vminfo_t *)(kp->ks_data);
1076 
1077 	assert(kp->ks_data_size == sizeof (vminfo_t));
1078 
1079 	SAVE_UINT64(ksi, vminfo, freemem);
1080 	SAVE_UINT64(ksi, vminfo, swap_resv);
1081 	SAVE_UINT64(ksi, vminfo, swap_alloc);
1082 	SAVE_UINT64(ksi, vminfo, swap_avail);
1083 	SAVE_UINT64(ksi, vminfo, swap_free);
1084 	SAVE_UINT64(ksi, vminfo, updates);
1085 }
1086 
1087 static void
1088 save_nfs(kstat_t *kp, ks_instance_t *ksi)
1089 {
1090 	struct mntinfo_kstat *mntinfo = (struct mntinfo_kstat *)(kp->ks_data);
1091 
1092 	assert(kp->ks_data_size == sizeof (struct mntinfo_kstat));
1093 
1094 	SAVE_STRING(ksi, mntinfo, mik_proto);
1095 	SAVE_UINT32(ksi, mntinfo, mik_vers);
1096 	SAVE_UINT32(ksi, mntinfo, mik_flags);
1097 	SAVE_UINT32(ksi, mntinfo, mik_secmod);
1098 	SAVE_UINT32(ksi, mntinfo, mik_curread);
1099 	SAVE_UINT32(ksi, mntinfo, mik_curwrite);
1100 	SAVE_INT32(ksi, mntinfo, mik_timeo);
1101 	SAVE_INT32(ksi, mntinfo, mik_retrans);
1102 	SAVE_UINT32(ksi, mntinfo, mik_acregmin);
1103 	SAVE_UINT32(ksi, mntinfo, mik_acregmax);
1104 	SAVE_UINT32(ksi, mntinfo, mik_acdirmin);
1105 	SAVE_UINT32(ksi, mntinfo, mik_acdirmax);
1106 	SAVE_UINT32_X(ksi, "lookup_srtt", mntinfo->mik_timers[0].srtt);
1107 	SAVE_UINT32_X(ksi, "lookup_deviate", mntinfo->mik_timers[0].deviate);
1108 	SAVE_UINT32_X(ksi, "lookup_rtxcur", mntinfo->mik_timers[0].rtxcur);
1109 	SAVE_UINT32_X(ksi, "read_srtt", mntinfo->mik_timers[1].srtt);
1110 	SAVE_UINT32_X(ksi, "read_deviate", mntinfo->mik_timers[1].deviate);
1111 	SAVE_UINT32_X(ksi, "read_rtxcur", mntinfo->mik_timers[1].rtxcur);
1112 	SAVE_UINT32_X(ksi, "write_srtt", mntinfo->mik_timers[2].srtt);
1113 	SAVE_UINT32_X(ksi, "write_deviate", mntinfo->mik_timers[2].deviate);
1114 	SAVE_UINT32_X(ksi, "write_rtxcur", mntinfo->mik_timers[2].rtxcur);
1115 	SAVE_UINT32(ksi, mntinfo, mik_noresponse);
1116 	SAVE_UINT32(ksi, mntinfo, mik_failover);
1117 	SAVE_UINT32(ksi, mntinfo, mik_remap);
1118 	SAVE_STRING(ksi, mntinfo, mik_curserver);
1119 }
1120 
1121 #ifdef __sparc
1122 static void
1123 save_sfmmu_global_stat(kstat_t *kp, ks_instance_t *ksi)
1124 {
1125 	struct sfmmu_global_stat *sfmmug =
1126 	    (struct sfmmu_global_stat *)(kp->ks_data);
1127 
1128 	assert(kp->ks_data_size == sizeof (struct sfmmu_global_stat));
1129 
1130 	SAVE_INT32(ksi, sfmmug, sf_tsb_exceptions);
1131 	SAVE_INT32(ksi, sfmmug, sf_tsb_raise_exception);
1132 	SAVE_INT32(ksi, sfmmug, sf_pagefaults);
1133 	SAVE_INT32(ksi, sfmmug, sf_uhash_searches);
1134 	SAVE_INT32(ksi, sfmmug, sf_uhash_links);
1135 	SAVE_INT32(ksi, sfmmug, sf_khash_searches);
1136 	SAVE_INT32(ksi, sfmmug, sf_khash_links);
1137 	SAVE_INT32(ksi, sfmmug, sf_swapout);
1138 	SAVE_INT32(ksi, sfmmug, sf_tsb_alloc);
1139 	SAVE_INT32(ksi, sfmmug, sf_tsb_allocfail);
1140 	SAVE_INT32(ksi, sfmmug, sf_tsb_sectsb_create);
1141 	SAVE_INT32(ksi, sfmmug, sf_scd_1sttsb_alloc);
1142 	SAVE_INT32(ksi, sfmmug, sf_scd_2ndtsb_alloc);
1143 	SAVE_INT32(ksi, sfmmug, sf_scd_1sttsb_allocfail);
1144 	SAVE_INT32(ksi, sfmmug, sf_scd_2ndtsb_allocfail);
1145 	SAVE_INT32(ksi, sfmmug, sf_tteload8k);
1146 	SAVE_INT32(ksi, sfmmug, sf_tteload64k);
1147 	SAVE_INT32(ksi, sfmmug, sf_tteload512k);
1148 	SAVE_INT32(ksi, sfmmug, sf_tteload4m);
1149 	SAVE_INT32(ksi, sfmmug, sf_tteload32m);
1150 	SAVE_INT32(ksi, sfmmug, sf_tteload256m);
1151 	SAVE_INT32(ksi, sfmmug, sf_tsb_load8k);
1152 	SAVE_INT32(ksi, sfmmug, sf_tsb_load4m);
1153 	SAVE_INT32(ksi, sfmmug, sf_hblk_hit);
1154 	SAVE_INT32(ksi, sfmmug, sf_hblk8_ncreate);
1155 	SAVE_INT32(ksi, sfmmug, sf_hblk8_nalloc);
1156 	SAVE_INT32(ksi, sfmmug, sf_hblk1_ncreate);
1157 	SAVE_INT32(ksi, sfmmug, sf_hblk1_nalloc);
1158 	SAVE_INT32(ksi, sfmmug, sf_hblk_slab_cnt);
1159 	SAVE_INT32(ksi, sfmmug, sf_hblk_reserve_cnt);
1160 	SAVE_INT32(ksi, sfmmug, sf_hblk_recurse_cnt);
1161 	SAVE_INT32(ksi, sfmmug, sf_hblk_reserve_hit);
1162 	SAVE_INT32(ksi, sfmmug, sf_get_free_success);
1163 	SAVE_INT32(ksi, sfmmug, sf_get_free_throttle);
1164 	SAVE_INT32(ksi, sfmmug, sf_get_free_fail);
1165 	SAVE_INT32(ksi, sfmmug, sf_put_free_success);
1166 	SAVE_INT32(ksi, sfmmug, sf_put_free_fail);
1167 	SAVE_INT32(ksi, sfmmug, sf_pgcolor_conflict);
1168 	SAVE_INT32(ksi, sfmmug, sf_uncache_conflict);
1169 	SAVE_INT32(ksi, sfmmug, sf_unload_conflict);
1170 	SAVE_INT32(ksi, sfmmug, sf_ism_uncache);
1171 	SAVE_INT32(ksi, sfmmug, sf_ism_recache);
1172 	SAVE_INT32(ksi, sfmmug, sf_recache);
1173 	SAVE_INT32(ksi, sfmmug, sf_steal_count);
1174 	SAVE_INT32(ksi, sfmmug, sf_pagesync);
1175 	SAVE_INT32(ksi, sfmmug, sf_clrwrt);
1176 	SAVE_INT32(ksi, sfmmug, sf_pagesync_invalid);
1177 	SAVE_INT32(ksi, sfmmug, sf_kernel_xcalls);
1178 	SAVE_INT32(ksi, sfmmug, sf_user_xcalls);
1179 	SAVE_INT32(ksi, sfmmug, sf_tsb_grow);
1180 	SAVE_INT32(ksi, sfmmug, sf_tsb_shrink);
1181 	SAVE_INT32(ksi, sfmmug, sf_tsb_resize_failures);
1182 	SAVE_INT32(ksi, sfmmug, sf_tsb_reloc);
1183 	SAVE_INT32(ksi, sfmmug, sf_user_vtop);
1184 	SAVE_INT32(ksi, sfmmug, sf_ctx_inv);
1185 	SAVE_INT32(ksi, sfmmug, sf_tlb_reprog_pgsz);
1186 	SAVE_INT32(ksi, sfmmug, sf_region_remap_demap);
1187 	SAVE_INT32(ksi, sfmmug, sf_create_scd);
1188 	SAVE_INT32(ksi, sfmmug, sf_join_scd);
1189 	SAVE_INT32(ksi, sfmmug, sf_leave_scd);
1190 	SAVE_INT32(ksi, sfmmug, sf_destroy_scd);
1191 }
1192 #endif
1193 
1194 #ifdef __sparc
1195 static void
1196 save_sfmmu_tsbsize_stat(kstat_t *kp, ks_instance_t *ksi)
1197 {
1198 	struct sfmmu_tsbsize_stat *sfmmut;
1199 
1200 	assert(kp->ks_data_size == sizeof (struct sfmmu_tsbsize_stat));
1201 	sfmmut = (struct sfmmu_tsbsize_stat *)(kp->ks_data);
1202 
1203 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_8k);
1204 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_16k);
1205 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_32k);
1206 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_64k);
1207 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_128k);
1208 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_256k);
1209 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_512k);
1210 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_1m);
1211 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_2m);
1212 	SAVE_INT32(ksi, sfmmut, sf_tsbsz_4m);
1213 }
1214 #endif
1215 
1216 #ifdef __sparc
1217 static void
1218 save_simmstat(kstat_t *kp, ks_instance_t *ksi)
1219 {
1220 	uchar_t	*simmstat;
1221 	char	*simm_buf;
1222 	char	*list = NULL;
1223 	int	i;
1224 
1225 	assert(kp->ks_data_size == sizeof (uchar_t) * SIMM_COUNT);
1226 
1227 	for (i = 0, simmstat = (uchar_t *)(kp->ks_data); i < SIMM_COUNT - 1;
1228 	    i++, simmstat++) {
1229 		if (list == NULL) {
1230 			(void) asprintf(&simm_buf, "%d,", *simmstat);
1231 		} else {
1232 			(void) asprintf(&simm_buf, "%s%d,", list, *simmstat);
1233 			free(list);
1234 		}
1235 		list = simm_buf;
1236 	}
1237 
1238 	(void) asprintf(&simm_buf, "%s%d", list, *simmstat);
1239 	SAVE_STRING_X(ksi, "status", simm_buf);
1240 	free(list);
1241 	free(simm_buf);
1242 }
1243 #endif
1244 
1245 #ifdef __sparc
1246 /*
1247  * Helper function for save_temperature().
1248  */
1249 static char *
1250 short_array_to_string(short *shortp, int len)
1251 {
1252 	char	*list = NULL;
1253 	char	*list_buf;
1254 
1255 	for (; len > 1; len--, shortp++) {
1256 		if (list == NULL) {
1257 			(void) asprintf(&list_buf, "%hd,", *shortp);
1258 		} else {
1259 			(void) asprintf(&list_buf, "%s%hd,", list, *shortp);
1260 			free(list);
1261 		}
1262 		list = list_buf;
1263 	}
1264 
1265 	(void) asprintf(&list_buf, "%s%hd", list, *shortp);
1266 	free(list);
1267 	return (list_buf);
1268 }
1269 
1270 static void
1271 save_temperature(kstat_t *kp, ks_instance_t *ksi)
1272 {
1273 	struct temp_stats *temps = (struct temp_stats *)(kp->ks_data);
1274 	char	*buf;
1275 
1276 	assert(kp->ks_data_size == sizeof (struct temp_stats));
1277 
1278 	SAVE_UINT32(ksi, temps, index);
1279 
1280 	buf = short_array_to_string(temps->l1, L1_SZ);
1281 	SAVE_STRING_X(ksi, "l1", buf);
1282 	free(buf);
1283 
1284 	buf = short_array_to_string(temps->l2, L2_SZ);
1285 	SAVE_STRING_X(ksi, "l2", buf);
1286 	free(buf);
1287 
1288 	buf = short_array_to_string(temps->l3, L3_SZ);
1289 	SAVE_STRING_X(ksi, "l3", buf);
1290 	free(buf);
1291 
1292 	buf = short_array_to_string(temps->l4, L4_SZ);
1293 	SAVE_STRING_X(ksi, "l4", buf);
1294 	free(buf);
1295 
1296 	buf = short_array_to_string(temps->l5, L5_SZ);
1297 	SAVE_STRING_X(ksi, "l5", buf);
1298 	free(buf);
1299 
1300 	SAVE_INT32(ksi, temps, max);
1301 	SAVE_INT32(ksi, temps, min);
1302 	SAVE_INT32(ksi, temps, state);
1303 	SAVE_INT32(ksi, temps, temp_cnt);
1304 	SAVE_INT32(ksi, temps, shutdown_cnt);
1305 	SAVE_INT32(ksi, temps, version);
1306 	SAVE_INT32(ksi, temps, trend);
1307 	SAVE_INT32(ksi, temps, override);
1308 }
1309 #endif
1310 
1311 #ifdef __sparc
1312 static void
1313 save_temp_over(kstat_t *kp, ks_instance_t *ksi)
1314 {
1315 	short	*sh = (short *)(kp->ks_data);
1316 	char	*value;
1317 
1318 	assert(kp->ks_data_size == sizeof (short));
1319 
1320 	(void) asprintf(&value, "%hu", *sh);
1321 	SAVE_STRING_X(ksi, "override", value);
1322 	free(value);
1323 }
1324 #endif
1325 
1326 #ifdef __sparc
1327 static void
1328 save_ps_shadow(kstat_t *kp, ks_instance_t *ksi)
1329 {
1330 	uchar_t	*uchar = (uchar_t *)(kp->ks_data);
1331 
1332 	assert(kp->ks_data_size == SYS_PS_COUNT);
1333 
1334 	SAVE_CHAR_X(ksi, "core_0", *uchar++);
1335 	SAVE_CHAR_X(ksi, "core_1", *uchar++);
1336 	SAVE_CHAR_X(ksi, "core_2", *uchar++);
1337 	SAVE_CHAR_X(ksi, "core_3", *uchar++);
1338 	SAVE_CHAR_X(ksi, "core_4", *uchar++);
1339 	SAVE_CHAR_X(ksi, "core_5", *uchar++);
1340 	SAVE_CHAR_X(ksi, "core_6", *uchar++);
1341 	SAVE_CHAR_X(ksi, "core_7", *uchar++);
1342 	SAVE_CHAR_X(ksi, "pps_0", *uchar++);
1343 	SAVE_CHAR_X(ksi, "clk_33", *uchar++);
1344 	SAVE_CHAR_X(ksi, "clk_50", *uchar++);
1345 	SAVE_CHAR_X(ksi, "v5_p", *uchar++);
1346 	SAVE_CHAR_X(ksi, "v12_p", *uchar++);
1347 	SAVE_CHAR_X(ksi, "v5_aux", *uchar++);
1348 	SAVE_CHAR_X(ksi, "v5_p_pch", *uchar++);
1349 	SAVE_CHAR_X(ksi, "v12_p_pch", *uchar++);
1350 	SAVE_CHAR_X(ksi, "v3_pch", *uchar++);
1351 	SAVE_CHAR_X(ksi, "v5_pch", *uchar++);
1352 	SAVE_CHAR_X(ksi, "p_fan", *uchar++);
1353 }
1354 #endif
1355 
1356 #ifdef __sparc
1357 static void
1358 save_fault_list(kstat_t *kp, ks_instance_t *ksi)
1359 {
1360 	struct ft_list *fault;
1361 	char	name[KSTAT_STRLEN + 7];
1362 	int	i;
1363 
1364 	for (i = 1, fault = (struct ft_list *)(kp->ks_data);
1365 	    i <= 999999 && i <= kp->ks_data_size / sizeof (struct ft_list);
1366 	    i++, fault++) {
1367 		(void) snprintf(name, sizeof (name), "unit_%d", i);
1368 		SAVE_INT32_X(ksi, name, fault->unit);
1369 		(void) snprintf(name, sizeof (name), "type_%d", i);
1370 		SAVE_INT32_X(ksi, name, fault->type);
1371 		(void) snprintf(name, sizeof (name), "fclass_%d", i);
1372 		SAVE_INT32_X(ksi, name, fault->fclass);
1373 		(void) snprintf(name, sizeof (name), "create_time_%d", i);
1374 		SAVE_HRTIME_X(ksi, name, fault->create_time);
1375 		(void) snprintf(name, sizeof (name), "msg_%d", i);
1376 		SAVE_STRING_X(ksi, name, fault->msg);
1377 	}
1378 }
1379 #endif
1380 
1381 static void
1382 save_named(kstat_t *kp, ks_instance_t *ksi)
1383 {
1384 	kstat_named_t *knp;
1385 	int	n;
1386 
1387 	for (n = kp->ks_ndata, knp = KSTAT_NAMED_PTR(kp); n > 0; n--, knp++) {
1388 		switch (knp->data_type) {
1389 		case KSTAT_DATA_CHAR:
1390 			nvpair_insert(ksi, knp->name,
1391 			    (ks_value_t *)&knp->value, KSTAT_DATA_CHAR);
1392 			break;
1393 		case KSTAT_DATA_INT32:
1394 			nvpair_insert(ksi, knp->name,
1395 			    (ks_value_t *)&knp->value, KSTAT_DATA_INT32);
1396 			break;
1397 		case KSTAT_DATA_UINT32:
1398 			nvpair_insert(ksi, knp->name,
1399 			    (ks_value_t *)&knp->value, KSTAT_DATA_UINT32);
1400 			break;
1401 		case KSTAT_DATA_INT64:
1402 			nvpair_insert(ksi, knp->name,
1403 			    (ks_value_t *)&knp->value, KSTAT_DATA_INT64);
1404 			break;
1405 		case KSTAT_DATA_UINT64:
1406 			nvpair_insert(ksi, knp->name,
1407 			    (ks_value_t *)&knp->value, KSTAT_DATA_UINT64);
1408 			break;
1409 		case KSTAT_DATA_STRING:
1410 			SAVE_STRING_X(ksi, knp->name, KSTAT_NAMED_STR_PTR(knp));
1411 			break;
1412 		default:
1413 			assert(B_FALSE); /* Invalid data type */
1414 			break;
1415 		}
1416 	}
1417 }
1418 
1419 static void
1420 save_intr(kstat_t *kp, ks_instance_t *ksi)
1421 {
1422 	kstat_intr_t *intr = KSTAT_INTR_PTR(kp);
1423 	char	*intr_names[] = {"hard", "soft", "watchdog", "spurious",
1424 	    "multiple_service"};
1425 	int	n;
1426 
1427 	for (n = 0; n < KSTAT_NUM_INTRS; n++)
1428 		SAVE_UINT32_X(ksi, intr_names[n], intr->intrs[n]);
1429 }
1430 
1431 static void
1432 save_io(kstat_t *kp, ks_instance_t *ksi)
1433 {
1434 	kstat_io_t	*ksio = KSTAT_IO_PTR(kp);
1435 
1436 	SAVE_UINT64(ksi, ksio, nread);
1437 	SAVE_UINT64(ksi, ksio, nwritten);
1438 	SAVE_UINT32(ksi, ksio, reads);
1439 	SAVE_UINT32(ksi, ksio, writes);
1440 	SAVE_HRTIME(ksi, ksio, wtime);
1441 	SAVE_HRTIME(ksi, ksio, wlentime);
1442 	SAVE_HRTIME(ksi, ksio, wlastupdate);
1443 	SAVE_HRTIME(ksi, ksio, rtime);
1444 	SAVE_HRTIME(ksi, ksio, rlentime);
1445 	SAVE_HRTIME(ksi, ksio, rlastupdate);
1446 	SAVE_UINT32(ksi, ksio, wcnt);
1447 	SAVE_UINT32(ksi, ksio, rcnt);
1448 }
1449 
1450 static void
1451 save_timer(kstat_t *kp, ks_instance_t *ksi)
1452 {
1453 	kstat_timer_t	*ktimer = KSTAT_TIMER_PTR(kp);
1454 
1455 	SAVE_STRING(ksi, ktimer, name);
1456 	SAVE_UINT64(ksi, ktimer, num_events);
1457 	SAVE_HRTIME(ksi, ktimer, elapsed_time);
1458 	SAVE_HRTIME(ksi, ktimer, min_time);
1459 	SAVE_HRTIME(ksi, ktimer, max_time);
1460 	SAVE_HRTIME(ksi, ktimer, start_time);
1461 	SAVE_HRTIME(ksi, ktimer, stop_time);
1462 }
1463