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      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 2006 Sun Microsystems, Inc.  All rights reserved.
     24  * Use is subject to license terms.
     25  */
     26 
     27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     28 
     29 #include <stdio.h>
     30 #include <stdlib.h>
     31 #include <string.h>
     32 #include <fcntl.h>
     33 #include <errno.h>
     34 #include <unistd.h>
     35 #include <signal.h>
     36 #include <strings.h>
     37 #include <limits.h>
     38 #include <sys/mman.h>
     39 #include <sys/pset.h>
     40 #include <sys/varargs.h>
     41 #include <sys/trapstat.h>
     42 #include <sys/wait.h>
     43 #include <stddef.h>
     44 #include <termio.h>
     45 
     46 #define	TSTAT_DEVICE	"/dev/trapstat"
     47 #define	TSTAT_COMMAND	"trapstat"
     48 #define	TSTAT_DELTA(data, old, member) g_absolute ? (data)->member : \
     49 	(uint64_t)(0.5 + (g_interval / (double)((data)->tdata_snapts - \
     50 	(old)->tdata_snapts)) * (double)((data)->member - (old)->member))
     51 
     52 #define	TSTAT_PRINT_MISSDATA(diff, time) \
     53 	(void) printf(" %9lld %4.1f", (diff), (time));
     54 
     55 #define	TSTAT_PAGESIZE_MODIFIERS	" kmgtp"
     56 #define	TSTAT_PAGESIZE_STRLEN		10
     57 #define	TSTAT_MAX_RATE			5000
     58 #define	TSTAT_COLUMN_OFFS	26
     59 #define	TSTAT_COLUMNS_PER_CPU	9
     60 
     61 static tstat_data_t *g_data[2];
     62 static tstat_data_t *g_ndata, *g_odata;
     63 static processorid_t g_max_cpus;
     64 static int8_t *g_selected;
     65 static timer_t g_tid;
     66 static int g_interval = NANOSEC;
     67 static int g_peffect = 1;
     68 static int g_absolute = 0;
     69 static sigset_t g_oset;
     70 
     71 static psetid_t g_pset = PS_NONE;
     72 static processorid_t *g_pset_cpus;
     73 static uint_t g_pset_ncpus;
     74 
     75 static int g_cpus_per_line = (80 - TSTAT_COLUMN_OFFS) / TSTAT_COLUMNS_PER_CPU;
     76 static int g_winch;
     77 
     78 static int g_pgsizes;
     79 static size_t *g_pgsize;
     80 static char **g_pgnames;
     81 static size_t g_datasize;
     82 
     83 static int g_gen;
     84 static int g_fd;
     85 static uint8_t g_active[TSTAT_NENT];
     86 
     87 static hrtime_t g_start;
     88 
     89 static int g_exec_errno;
     90 static int g_child_exited;
     91 static int g_child_status;
     92 
     93 static void (*g_process)(void *, uint64_t, double);
     94 static void *g_arg;
     95 
     96 typedef struct tstat_sum {
     97 	uint64_t	tsum_diff;
     98 	double		tsum_time;
     99 } tstat_sum_t;
    100 
    101 #define	TSTAT_ENT_USED			0
    102 #define	TSTAT_ENT_RESERVED		1
    103 #define	TSTAT_ENT_UNUSED		2
    104 #define	TSTAT_ENT_CONTINUED		3
    105 
    106 typedef struct tstat_ent {
    107 	char *tent_name;
    108 	char *tent_descr;
    109 	int tent_type;
    110 } tstat_ent_t;
    111 
    112 static tstat_ent_t g_traps[] = {
    113 #ifndef	sun4v
    114 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    115 	{ "power-on", 		"power on reset" },
    116 	{ "watchdog", 		"watchdog reset" },
    117 	{ "xir", 		"externally initiated reset" },
    118 	{ "sir", 		"software initiated reset" },
    119 	{ "red", 		"RED state exception" },
    120 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    121 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    122 	{ "immu-xcp", 		"instruction access exception" },
    123 	{ "immu-miss", 		"instruction access MMU miss" },
    124 	{ "immu-err", 		"instruction access error" },
    125 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    126 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    127 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    128 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    129 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    130 	{ "ill-inst", 		"illegal instruction" },
    131 	{ "priv-inst", 		"privileged opcode" },
    132 	{ "unimp-ldd", 		"unimplemented LDD" },
    133 	{ "unimp-std", 		"unimplemented STD" },
    134 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    135 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    136 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    137 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    138 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    139 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    140 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    141 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    142 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    143 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    144 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    145 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    146 	{ "fp-disabled", 	"fp disabled" },
    147 	{ "fp-ieee754", 	"fp exception ieee754" },
    148 	{ "fp-xcp-other", 	"fp exception other" },
    149 	{ "tag-oflow", 		"tag overflow" },
    150 	{ "cleanwin", 		"clean window" },
    151 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    152 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    153 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    154 	{ "div-zero", 		"division by zero" },
    155 	{ "internal-err", 	"internal processor error" },
    156 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    157 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    158 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    159 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    160 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    161 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    162 	{ "dmmu-xcp", 		"data access exception" },
    163 	{ "dmmu-miss", 		"data access MMU miss" },
    164 	{ "dmmu-err", 		"data access error" },
    165 	{ "dmmu-prot", 		"data access protection" },
    166 	{ "unalign", 		"mem address not aligned" },
    167 	{ "lddf-unalign", 	"LDDF mem address not aligned" },
    168 	{ "stdf-unalign", 	"STDF mem address not aligned" },
    169 	{ "priv-act", 		"privileged action" },
    170 	{ "ldqf-unalign",	"LDQF mem address not aligned" },
    171 	{ "stqf-unalign", 	"STQF mem address not aligned" },
    172 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    173 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    174 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    175 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    176 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    177 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    178 	{ "async-d-err", 	"async data error" },
    179 	{ "level-1", 		"interrupt level 1" },
    180 	{ "level-2", 		"interrupt level 2" },
    181 	{ "level-3", 		"interrupt level 3" },
    182 	{ "level-4", 		"interrupt level 4" },
    183 	{ "level-5", 		"interrupt level 5" },
    184 	{ "level-6", 		"interrupt level 6" },
    185 	{ "level-7", 		"interrupt level 7" },
    186 	{ "level-8", 		"interrupt level 8" },
    187 	{ "level-9", 		"interrupt level 9" },
    188 	{ "level-10", 		"interrupt level 10" },
    189 	{ "level-11", 		"interrupt level 11" },
    190 	{ "level-12", 		"interrupt level 12" },
    191 	{ "level-13", 		"interrupt level 13" },
    192 	{ "level-14", 		"interrupt level 14" },
    193 	{ "level-15", 		"interrupt level 15" },
    194 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    195 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    196 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    197 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    198 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    199 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    200 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    201 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    202 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    203 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    204 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    205 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    206 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    207 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    208 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    209 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    210 	{ "int-vec", 		"interrupt vector" },
    211 	{ "pa-watch", 		"PA watchpoint" },
    212 	{ "va-watch", 		"VA watchpoint" },
    213 	{ "ecc-err", 		"corrected ECC error" },
    214 	{ "itlb-miss", 		"instruction access MMU miss" },
    215 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    216 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    217 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    218 	{ "dtlb-miss", 		"data access MMU miss" },
    219 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    220 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    221 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    222 	{ "dtlb-prot", 		"data access protection" },
    223 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    224 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    225 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    226 	{ "fast-ecc",		"fast ECC error" },
    227 	{ "dcache-parity",	"D-cache parity error" },
    228 	{ "icache-parity",	"I-cache parity error" },
    229 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    230 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    231 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    232 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    233 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    234 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    235 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    236 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    237 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    238 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    239 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    240 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    241 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    242 #else /* sun4v */
    243 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    244 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    245 	{ "watchdog", 		"watchdog reset" },
    246 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    247 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    248 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    249 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    250 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    251 	{ "immu-xcp", 		"instruction access exception" },
    252 	{ "immu-miss", 		"instruction access MMU miss" },
    253 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    254 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    255 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    256 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    257 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    258 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    259 	{ "ill-inst", 		"illegal instruction" },
    260 	{ "priv-inst", 		"privileged opcode" },
    261 	{ "unimp-ldd", 		"unimplemented LDD" },
    262 	{ "unimp-std", 		"unimplemented STD" },
    263 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    264 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    265 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    266 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    267 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    268 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    269 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    270 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    271 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    272 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    273 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    274 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    275 	{ "fp-disabled", 	"fp disabled" },
    276 	{ "fp-ieee754", 	"fp exception ieee754" },
    277 	{ "fp-xcp-other", 	"fp exception other" },
    278 	{ "tag-oflow", 		"tag overflow" },
    279 	{ "cleanwin", 		"clean window" },
    280 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    281 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    282 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    283 	{ "div-zero", 		"division by zero" },
    284 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    285 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    286 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    287 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    288 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    289 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    290 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    291 	{ "dmmu-xcp", 		"data access exception" },
    292 	{ "dmmu-miss", 		"data access MMU miss" },
    293 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    294 	{ "dmmu-prot", 		"data access protection" },
    295 	{ "unalign", 		"mem address not aligned" },
    296 	{ "lddf-unalign", 	"LDDF mem address not aligned" },
    297 	{ "stdf-unalign", 	"STDF mem address not aligned" },
    298 	{ "priv-act", 		"privileged action" },
    299 	{ "ldqf-unalign",	"LDQF mem address not aligned" },
    300 	{ "stqf-unalign", 	"STQF mem address not aligned" },
    301 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    302 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    303 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    304 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    305 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    306 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    307 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    308 	{ "level-1", 		"interrupt level 1" },
    309 	{ "level-2", 		"interrupt level 2" },
    310 	{ "level-3", 		"interrupt level 3" },
    311 	{ "level-4", 		"interrupt level 4" },
    312 	{ "level-5", 		"interrupt level 5" },
    313 	{ "level-6", 		"interrupt level 6" },
    314 	{ "level-7", 		"interrupt level 7" },
    315 	{ "level-8", 		"interrupt level 8" },
    316 	{ "level-9", 		"interrupt level 9" },
    317 	{ "level-10", 		"interrupt level 10" },
    318 	{ "level-11", 		"interrupt level 11" },
    319 	{ "level-12", 		"interrupt level 12" },
    320 	{ "level-13", 		"interrupt level 13" },
    321 	{ "level-14", 		"interrupt level 14" },
    322 	{ "level-15", 		"interrupt level 15" },
    323 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    324 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    325 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    326 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    327 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    328 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    329 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    330 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    331 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    332 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    333 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    334 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    335 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    336 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    337 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    338 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    339 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    340 	{ "pa-watch", 		"PA watchpoint" },
    341 	{ "va-watch", 		"VA watchpoint" },
    342 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    343 	{ "itlb-miss", 		"instruction access MMU miss" },
    344 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    345 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    346 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    347 	{ "dtlb-miss", 		"data access MMU miss" },
    348 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    349 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    350 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    351 	{ "dtlb-prot", 		"data access protection" },
    352 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    353 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    354 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    355 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    356 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    357 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    358 	{ "ctl-xfer",		"control transfer" },
    359 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    360 	{ "instr-brkpt",	"instruction breakpoint" },
    361 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    362 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    363 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    364 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    365 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    366 	{ "hw-changed", 	"hardware changed" },
    367 	{ "cpu_mondo", 		"cpu mondo trap" },
    368 	{ "dev_mondo", 		"device mondo trap" },
    369 	{ "res-err", 		"resumable error" },
    370 	{ "nonres-err",		"non-resumable error" },
    371 #endif /* sun4v */
    372 	{ "spill-0-normal", 	"spill 0 normal" },
    373 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    374 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    375 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    376 	{ "spill-user-32", 	"spill user window, 32-bit" },
    377 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    378 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    379 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    380 	{ "spill-user-64", 	"spill user window, 64-bit" },
    381 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    382 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    383 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    384 	{ "spill-user-32-cln", 	"spill, clean user window, 32-bit" },
    385 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    386 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    387 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    388 	{ "spill-user-64-cln", 	"spill, clean user window, 64-bit" },
    389 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    390 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    391 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    392 	{ "spill-kern-32", 	"spill kernel window, 32-bit" },
    393 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    394 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    395 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    396 	{ "spill-kern-64", 	"spill kernel window, 64-bit" },
    397 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    398 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    399 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    400 	{ "spill-mixed", 	"spill window, mixed 32-bit/64-bit" },
    401 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    402 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    403 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    404 	{ "spill-0-other", 	"spill 0 other" },
    405 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    406 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    407 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    408 	{ "spill-asuser-32", 	"spill user window as kernel, 32-bit" },
    409 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    410 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    411 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    412 	{ "spill-asuser-64", 	"spill user window as kernel, 64-bit" },
    413 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    414 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    415 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    416 	{ "spill-asuser-32-cln", "spill, clean user window as kernel, 32-bit" },
    417 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    418 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    419 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    420 	{ "spill-asuser-64-cln", "spill, clean user window as kernel, 64-bit" },
    421 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    422 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    423 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    424 	{ "spill-5-other", 	"spill 5 other" },
    425 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    426 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    427 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    428 	{ "spill-6-other", 	"spill 6 other" },
    429 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    430 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    431 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    432 	{ "spill-7-other", 	"spill 7 other" },
    433 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    434 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    435 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    436 	{ "fill-0-normal", 	"fill 0 normal" },
    437 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    438 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    439 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    440 	{ "fill-user-32", 	"fill user window, 32-bit" },
    441 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    442 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    443 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    444 	{ "fill-user-64", 	"fill user window, 64-bit" },
    445 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    446 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    447 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    448 	{ "fill-user-32-cln", 	"fill user window, 32-bit" },
    449 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    450 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    451 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    452 	{ "fill-user-64-cln", 	"fill user window, 64-bit" },
    453 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    454 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    455 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    456 	{ "fill-kern-32", 	"fill kernel window, 32-bit" },
    457 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    458 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    459 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    460 	{ "fill-kern-64", 	"fill kernel window, 64-bit" },
    461 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    462 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    463 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    464 	{ "fill-mixed", 	"fill window, mixed 32-bit/64-bit" },
    465 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    466 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    467 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    468 	{ "fill-0-other", 	"fill 0 other" },
    469 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    470 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    471 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    472 	{ "fill-asuser-32", 	"fill user window as kernel, 32-bit" },
    473 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    474 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    475 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    476 	{ "fill-asuser-64", 	"fill user window as kernel, 64-bit" },
    477 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    478 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    479 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    480 	{ "fill-asuser-32-cln", "fill user window as kernel, 32-bit" },
    481 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    482 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    483 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    484 	{ "fill-asuser-64-cln",	"fill user window as kernel, 64-bit" },
    485 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    486 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    487 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    488 	{ "fill-5-other", 	"fill 5 other" },
    489 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    490 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    491 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    492 	{ "fill-6-other", 	"fill 6 other" },
    493 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    494 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    495 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    496 	{ "fill-7-other", 	"fill 7 other" },
    497 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    498 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    499 	{ NULL, NULL,		TSTAT_ENT_CONTINUED },
    500 	{ "syscall-4x", 	"old system call" },
    501 	{ "usr-brkpt", 		"user breakpoint" },
    502 	{ "usr-div-zero", 	"user divide by zero" },
    503 	{ "flush-wins", 	"flush windows" },
    504 	{ "clean-wins", 	"clean windows" },
    505 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    506 	{ "fix-align", 		"fix unaligned references" },
    507 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    508 	{ "syscall-32", 	"ILP32 system call" },
    509 	{ "set-t0-addr", 	"set trap0 address" },
    510 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    511 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    512 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    513 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    514 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    515 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    516 	{ "trap-inst-16", 	"trap instruction 16", },
    517 	{ "trap-inst-17", 	"trap instruction 17", },
    518 	{ "trap-inst-18", 	"trap instruction 18", },
    519 	{ "trap-inst-19", 	"trap instruction 19", },
    520 	{ "trap-inst-20", 	"trap instruction 20", },
    521 	{ "trap-inst-21", 	"trap instruction 21", },
    522 	{ "trap-inst-22", 	"trap instruction 22", },
    523 	{ "trap-inst-23", 	"trap instruction 23", },
    524 	{ "trap-inst-24", 	"trap instruction 24", },
    525 	{ "trap-inst-25", 	"trap instruction 25", },
    526 	{ "trap-inst-26", 	"trap instruction 26", },
    527 	{ "trap-inst-27", 	"trap instruction 27", },
    528 	{ "trap-inst-28", 	"trap instruction 28", },
    529 	{ "trap-inst-29", 	"trap instruction 29", },
    530 	{ "trap-inst-30", 	"trap instruction 30", },
    531 	{ "trap-inst-31", 	"trap instruction 31", },
    532 	{ "get-cc", 		"get condition codes" },
    533 	{ "set-cc", 		"set condition codes" },
    534 	{ "get-psr", 		"get psr" },
    535 	{ "set-psr", 		"set psr (some fields)" },
    536 	{ "getts", 		"get timestamp" },
    537 	{ "gethrvtime", 	"get lwp virtual time" },
    538 	{ "self-xcall", 	"self xcall" },
    539 	{ "gethrtime", 		"get hrestime" },
    540 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    541 	{ "getlgrp",		"get lgrpid" },
    542 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    543 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    544 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    545 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    546 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    547 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    548 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    549 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    550 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    551 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    552 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    553 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    554 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    555 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    556 	{ "dtrace-pid",		"DTrace pid provider" },
    557 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    558 	{ "dtrace-return",	"DTrace pid provider return" },
    559 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    560 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    561 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    562 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    563 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    564 	{ "syscall-64", 	"LP64 system call" },
    565 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    566 	{ "tt-freeze", 		"freeze traptrace" },
    567 	{ "tt-unfreeze", 	"unfreeze traptrace" },
    568 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    569 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    570 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    571 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    572 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    573 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    574 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    575 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    576 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    577 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    578 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    579 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    580 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    581 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    582 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    583 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    584 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    585 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    586 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    587 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    588 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    589 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    590 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    591 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    592 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    593 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    594 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    595 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    596 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    597 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    598 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    599 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    600 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    601 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    602 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    603 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    604 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    605 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    606 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    607 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    608 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    609 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    610 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    611 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    612 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    613 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    614 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    615 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    616 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    617 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    618 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    619 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    620 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    621 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    622 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    623 	{ NULL, NULL,		TSTAT_ENT_UNUSED },
    624 	{ "ptl1-panic", 	"test ptl1-panic" },
    625 	{ "kmdb-enter", 	"kmdb enter (L1-A)" },
    626 	{ "kmdb-brkpt", 	"kmdb breakpoint" },
    627 	{ "obp-brkpt", 		"obp breakpoint" },
    628 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    629 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    630 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    631 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    632 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    633 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    634 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    635 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    636 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    637 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    638 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    639 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    640 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    641 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    642 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    643 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    644 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    645 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    646 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    647 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    648 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    649 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    650 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    651 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    652 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    653 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    654 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    655 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    656 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    657 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    658 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    659 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    660 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    661 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    662 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    663 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    664 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    665 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    666 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    667 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    668 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    669 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    670 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    671 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    672 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    673 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    674 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    675 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    676 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    677 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    678 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    679 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    680 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    681 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    682 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    683 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    684 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    685 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    686 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    687 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    688 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    689 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    690 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    691 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    692 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    693 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    694 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    695 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    696 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    697 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    698 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    699 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    700 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    701 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    702 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    703 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    704 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    705 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    706 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    707 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    708 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    709 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    710 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    711 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    712 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    713 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    714 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    715 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    716 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    717 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    718 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    719 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    720 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    721 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    722 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    723 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    724 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    725 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    726 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    727 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    728 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    729 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    730 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    731 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    732 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    733 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    734 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    735 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    736 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    737 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    738 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    739 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    740 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    741 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    742 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    743 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    744 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    745 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    746 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    747 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    748 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    749 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    750 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    751 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    752 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    753 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    754 	{ NULL, NULL,		TSTAT_ENT_RESERVED },
    755 	{ NULL, NULL,		TSTAT_ENT_RESERVED }
    756 };
    757 
    758 static void
    759 usage(void)
    760 {
    761 	(void) fprintf(stderr,
    762 	    "\nusage:  trapstat [ -t | -T | -e entrylist ]\n"
    763 	    "   [ -C psrset | -c cpulist ]\n"
    764 	    "   [ -P ] [ -a ] [ -r rate ] [[ interval [ count ] ] | "
    765 	    "command [ args ] ]\n\n"
    766 	    "Trap selection options:\n\n"
    767 	    " -t             TLB statistics\n"
    768 	    " -T             TLB statistics, with pagesize information\n"
    769 	    " -e entrylist   Enable statistics only for entries specified "
    770 	    "by entrylist\n\n"
    771 	    "CPU selection options:\n\n"
    772 	    " -c cpulist     Enable statistics only for specified CPU list\n"
    773 	    " -C psrset      Enable statistics only for specified processor "
    774 	    "set\n\n"
    775 	    "Other options:\n\n"
    776 	    " -a             Display trap values as accumulating values "
    777 	    "instead of rates\n"
    778 	    " -l             List trap table entries and exit\n"
    779 	    " -P             Display output in parsable format\n"
    780 	    " -r hz          Set sampling rate to be hz samples "
    781 	    "per second\n\n");
    782 
    783 	exit(EXIT_FAILURE);
    784 }
    785 
    786 static void
    787 fatal(char *fmt, ...)
    788 {
    789 	va_list ap;
    790 	int error = errno;
    791 
    792 	va_start(ap, fmt);
    793 
    794 	(void) fprintf(stderr, TSTAT_COMMAND ": ");
    795 	(void) vfprintf(stderr, fmt, ap);
    796 
    797 	if (fmt[strlen(fmt) - 1] != '\n')
    798 		(void) fprintf(stderr, ": %s\n", strerror(error));
    799 
    800 	exit(EXIT_FAILURE);
    801 }
    802 
    803 static void
    804 set_width(void)
    805 {
    806 	struct winsize win;
    807 
    808 	if (!isatty(fileno(stdout)))
    809 		return;
    810 
    811 	if (ioctl(fileno(stdout), TIOCGWINSZ, &win) == -1)
    812 		return;
    813 
    814 	if (win.ws_col == 0) {
    815 		/*
    816 		 * If TIOCGWINSZ returned 0 for the columns, just return --
    817 		 * thereby using the default value of g_cpus_per_line.  (This
    818 		 * happens, e.g., when running over a tip line.)
    819 		 */
    820 		return;
    821 	}
    822 
    823 	g_cpus_per_line = (win.ws_col - TSTAT_COLUMN_OFFS) /
    824 	    TSTAT_COLUMNS_PER_CPU;
    825 
    826 	if (g_cpus_per_line < 1)
    827 		g_cpus_per_line = 1;
    828 }
    829 
    830 static void
    831 intr(int signo)
    832 {
    833 	int error = errno;
    834 
    835 	switch (signo) {
    836 	case SIGWINCH:
    837 		g_winch = 1;
    838 		set_width();
    839 		break;
    840 
    841 	case SIGCHLD:
    842 		g_child_exited = 1;
    843 
    844 		while (wait(&g_child_status) == -1 && errno == EINTR)
    845 			continue;
    846 		break;
    847 
    848 	default:
    849 		break;
    850 	}
    851 
    852 	errno = error;
    853 }
    854 
    855 static void
    856 setup(void)
    857 {
    858 	struct sigaction act;
    859 	struct sigevent ev;
    860 	sigset_t set;
    861 	int i;
    862 
    863 	for (i = 0; i < TSTAT_NENT; i++) {
    864 		if (g_traps[i].tent_type == TSTAT_ENT_RESERVED)
    865 			g_traps[i].tent_name = "reserved";
    866 
    867 		if (g_traps[i].tent_type == TSTAT_ENT_UNUSED)
    868 			g_traps[i].tent_name = "unused";
    869 	}
    870 
    871 	g_max_cpus = (processorid_t)sysconf(_SC_CPUID_MAX) + 1;
    872 
    873 	if ((g_selected = malloc(sizeof (int8_t) * g_max_cpus)) == NULL)
    874 		fatal("could not allocate g_selected");
    875 
    876 	bzero(g_selected, sizeof (int8_t) * g_max_cpus);
    877 
    878 	g_pset_cpus = malloc(sizeof (processorid_t) * g_max_cpus);
    879 	if (g_pset_cpus == NULL)
    880 		fatal("could not allocate g_pset_cpus");
    881 
    882 	bzero(g_pset_cpus, sizeof (processorid_t) * g_max_cpus);
    883 
    884 	if ((g_pgsizes = getpagesizes(NULL, 0)) == -1)
    885 		fatal("getpagesizes()");
    886 
    887 	if ((g_pgsize = malloc(sizeof (size_t) * g_pgsizes)) == NULL)
    888 		fatal("could not allocate g_pgsize array");
    889 
    890 	if (getpagesizes(g_pgsize, g_pgsizes) == -1)
    891 		fatal("getpagesizes(%d)", g_pgsizes);
    892 
    893 	if ((g_pgnames = malloc(sizeof (char *) * g_pgsizes)) == NULL)
    894 		fatal("could not allocate g_pgnames");
    895 
    896 	for (i = 0; i < g_pgsizes; i++) {
    897 		size_t j, mul;
    898 		size_t sz = g_pgsize[i];
    899 
    900 		if ((g_pgnames[i] = malloc(TSTAT_PAGESIZE_STRLEN)) == NULL)
    901 			fatal("could not allocate g_pgnames[%d]", i);
    902 
    903 		for (j = 0, mul = 10; (1 << mul) <= sz; j++, mul += 10)
    904 			continue;
    905 
    906 		(void) snprintf(g_pgnames[i], TSTAT_PAGESIZE_STRLEN,
    907 		    "%d%c", sz >> (mul - 10), " kmgtpe"[j]);
    908 	}
    909 
    910 	g_datasize =
    911 	    sizeof (tstat_data_t) + (g_pgsizes - 1) * sizeof (tstat_pgszdata_t);
    912 
    913 	if ((g_data[0] = malloc(g_datasize * g_max_cpus)) == NULL)
    914 		fatal("could not allocate data buffer 0");
    915 
    916 	if ((g_data[1] = malloc(g_datasize * g_max_cpus)) == NULL)
    917 		fatal("could not allocate data buffer 1");
    918 
    919 	(void) sigemptyset(&act.sa_mask);
    920 	act.sa_flags = 0;
    921 	act.sa_handler = intr;
    922 	(void) sigaction(SIGUSR1, &act, NULL);
    923 	(void) sigaction(SIGCHLD, &act, NULL);
    924 
    925 	(void) sigaddset(&act.sa_mask, SIGCHLD);
    926 	(void) sigaddset(&act.sa_mask, SIGUSR1);
    927 	(void) sigaction(SIGWINCH, &act, NULL);
    928 	set_width();
    929 
    930 	(void) sigemptyset(&set);
    931 	(void) sigaddset(&set, SIGCHLD);
    932 	(void) sigaddset(&set, SIGUSR1);
    933 	(void) sigaddset(&set, SIGWINCH);
    934 	(void) sigprocmask(SIG_BLOCK, &set, &g_oset);
    935 
    936 	ev.sigev_notify = SIGEV_SIGNAL;
    937 	ev.sigev_signo = SIGUSR1;
    938 
    939 	if (timer_create(CLOCK_HIGHRES, &ev, &g_tid) == -1)
    940 		fatal("cannot create CLOCK_HIGHRES timer");
    941 }
    942 
    943 static void
    944 set_interval(hrtime_t nsec)
    945 {
    946 	struct itimerspec ts;
    947 
    948 	/*
    949 	 * If the interval is less than one second, we'll report the
    950 	 * numbers in terms of rate-per-interval.  If the interval is
    951 	 * greater than one second, we'll report numbers in terms of
    952 	 * rate-per-second.
    953 	 */
    954 	g_interval = nsec < NANOSEC ? nsec : NANOSEC;
    955 
    956 	ts.it_value.tv_sec = nsec / NANOSEC;
    957 	ts.it_value.tv_nsec = nsec % NANOSEC;
    958 	ts.it_interval.tv_sec = nsec / NANOSEC;
    959 	ts.it_interval.tv_nsec = nsec % NANOSEC;
    960 
    961 	if (timer_settime(g_tid, TIMER_RELTIME, &ts, NULL) == -1)
    962 		fatal("cannot set time on CLOCK_HIGHRES timer");
    963 }
    964 
    965 static void
    966 print_entries(FILE *stream, int parsable)
    967 {
    968 	int entno;
    969 
    970 	if (!parsable) {
    971 		(void) fprintf(stream, "  %3s %3s | %-20s | %s\n", "hex",
    972 		    "dec", "entry name", "description");
    973 
    974 		(void) fprintf(stream, "----------+----------------------"
    975 		    "+-----------------------\n");
    976 	}
    977 
    978 	for (entno = 0; entno < TSTAT_NENT; entno++) {
    979 		if (g_traps[entno].tent_type != TSTAT_ENT_USED)
    980 			continue;
    981 
    982 		(void) fprintf(stream, "0x%03x %3d %s%-20s %s%s\n",
    983 		    entno, entno,
    984 		    parsable ? "" : "| ", g_traps[entno].tent_name,
    985 		    parsable ? "" : "| ", g_traps[entno].tent_descr);
    986 	}
    987 }
    988 
    989 static void
    990 select_entry(char *entry)
    991 {
    992 	ulong_t entno;
    993 	char *end;
    994 
    995 	/*
    996 	 * The entry may be specified as a number (e.g., "0x68", "104") or
    997 	 * as a name ("dtlb-miss").
    998 	 */
    999 	entno = strtoul(entry, &end, 0);
   1000 
   1001 	if (*end == '\0') {
   1002 		if (entno >= TSTAT_NENT)
   1003 			goto bad_entry;
   1004 	} else {
   1005 		for (entno = 0; entno < TSTAT_NENT; entno++) {
   1006 			if (g_traps[entno].tent_type != TSTAT_ENT_USED)
   1007 				continue;
   1008 
   1009 			if (strcmp(entry, g_traps[entno].tent_name) == 0)
   1010 				break;
   1011 		}
   1012 
   1013 		if (entno == TSTAT_NENT)
   1014 			goto bad_entry;
   1015 	}
   1016 
   1017 	if (ioctl(g_fd, TSTATIOC_ENTRY, entno) == -1)
   1018 		fatal("TSTATIOC_ENTRY failed for entry 0x%x", entno);
   1019 
   1020 	g_active[entno] = 1;
   1021 	return;
   1022 
   1023 bad_entry:
   1024 	(void) fprintf(stderr, TSTAT_COMMAND ": invalid entry '%s'", entry);
   1025 	(void) fprintf(stderr, "; valid entries:\n\n");
   1026 	print_entries(stderr, 0);
   1027 	exit(EXIT_FAILURE);
   1028 }
   1029 
   1030 static void
   1031 select_cpu(processorid_t cpu)
   1032 {
   1033 	if (g_pset != PS_NONE)
   1034 		fatal("cannot specify both a processor set and a processor\n");
   1035 
   1036 	if (cpu < 0 || cpu >= g_max_cpus)
   1037 		fatal("cpu %d out of range\n", cpu);
   1038 
   1039 	if (p_online(cpu, P_STATUS) == -1) {
   1040 		if (errno != EINVAL)
   1041 			fatal("could not get status for cpu %d", cpu);
   1042 		fatal("cpu %d not present\n", cpu);
   1043 	}
   1044 
   1045 	g_selected[cpu] = 1;
   1046 }
   1047 
   1048 static void
   1049 select_cpus(processorid_t low, processorid_t high)
   1050 {
   1051 	if (g_pset != PS_NONE)
   1052 		fatal("cannot specify both a processor set and processors\n");
   1053 
   1054 	if (low < 0 || low >= g_max_cpus)
   1055 		fatal("invalid cpu '%d'\n", low);
   1056 
   1057 	if (high < 0 || high >= g_max_cpus)
   1058 		fatal("invalid cpu '%d'\n", high);
   1059 
   1060 	if (low >= high)
   1061 		fatal("invalid range '%d' to '%d'\n", low, high);
   1062 
   1063 	do {
   1064 		if (p_online(low, P_STATUS) != -1)
   1065 			g_selected[low] = 1;
   1066 	} while (++low <= high);
   1067 }
   1068 
   1069 static void
   1070 select_pset(psetid_t pset)
   1071 {
   1072 	processorid_t i;
   1073 
   1074 	if (pset < 0)
   1075 		fatal("processor set %d is out of range\n", pset);
   1076 
   1077 	/*
   1078 	 * Only one processor set can be specified.
   1079 	 */
   1080 	if (g_pset != PS_NONE)
   1081 		fatal("at most one processor set may be specified\n");
   1082 
   1083 	/*
   1084 	 * One cannot select processors _and_ a processor set.
   1085 	 */
   1086 	for (i = 0; i < g_max_cpus; i++)
   1087 		if (g_selected[i])
   1088 			break;
   1089 
   1090 	if (i != g_max_cpus)
   1091 		fatal("cannot specify both a processor and a processor set\n");
   1092 
   1093 	g_pset = pset;
   1094 	g_pset_ncpus = g_max_cpus;
   1095 
   1096 	if (pset_info(g_pset, NULL, &g_pset_ncpus, g_pset_cpus) == -1)
   1097 		fatal("invalid processor set: %d\n", g_pset);
   1098 
   1099 	if (g_pset_ncpus == 0)
   1100 		fatal("processor set %d empty\n", g_pset);
   1101 
   1102 	if (ioctl(g_fd, TSTATIOC_NOCPU) == -1)
   1103 		fatal("TSTATIOC_NOCPU failed");
   1104 
   1105 	for (i = 0; i < g_pset_ncpus; i++)
   1106 		g_selected[g_pset_cpus[i]] = 1;
   1107 }
   1108 
   1109 static void
   1110 check_pset(void)
   1111 {
   1112 	uint_t ncpus = g_max_cpus;
   1113 	processorid_t i;
   1114 
   1115 	if (g_pset == PS_NONE)
   1116 		return;
   1117 
   1118 	if (pset_info(g_pset, NULL, &ncpus, g_pset_cpus) == -1) {
   1119 		if (errno == EINVAL)
   1120 			fatal("processor set %d destroyed\n", g_pset);
   1121 
   1122 		fatal("couldn't get info for processor set %d", g_pset);
   1123 	}
   1124 
   1125 	if (ncpus == 0)
   1126 		fatal("processor set %d empty\n", g_pset);
   1127 
   1128 	if (ncpus == g_pset_ncpus) {
   1129 		for (i = 0; i < g_pset_ncpus; i++) {
   1130 			if (!g_selected[g_pset_cpus[i]])
   1131 				break;
   1132 		}
   1133 
   1134 		/*
   1135 		 * If the number of CPUs hasn't changed, and every CPU
   1136 		 * in the processor set is also selected, we know that the
   1137 		 * processor set itself hasn't changed.
   1138 		 */
   1139 		if (i == g_pset_ncpus)
   1140 			return;
   1141 	}
   1142 
   1143 	/*
   1144 	 * If we're here, we have a new processor set.  First, we need
   1145 	 * to zero out the selection array.
   1146 	 */
   1147 	bzero(g_selected, sizeof (int8_t) * g_max_cpus);
   1148 
   1149 	g_pset_ncpus = ncpus;
   1150 
   1151 	if (ioctl(g_fd, TSTATIOC_STOP) == -1)
   1152 		fatal("TSTATIOC_STOP failed");
   1153 
   1154 	if (ioctl(g_fd, TSTATIOC_NOCPU) == -1)
   1155 		fatal("TSATIOC_NOCPU failed");
   1156 
   1157 	for (i = 0; i < g_pset_ncpus; i++) {
   1158 		g_selected[g_pset_cpus[i]] = 1;
   1159 		if (ioctl(g_fd, TSTATIOC_CPU, g_pset_cpus[i]) == -1)
   1160 			fatal("TSTATIOC_CPU failed for cpu %d", i);
   1161 	}
   1162 
   1163 	/*
   1164 	 * Now that we have selected the CPUs, we're going to reenable
   1165 	 * trapstat, and reread the data for the current generation.
   1166 	 */
   1167 	if (ioctl(g_fd, TSTATIOC_GO) == -1)
   1168 		fatal("TSTATIOC_GO failed");
   1169 
   1170 	if (ioctl(g_fd, TSTATIOC_READ, g_data[g_gen]) == -1)
   1171 		fatal("TSTATIOC_READ failed");
   1172 }
   1173 
   1174 static void
   1175 missdata(tstat_missdata_t *miss, tstat_missdata_t *omiss)
   1176 {
   1177 	hrtime_t ts = g_ndata->tdata_snapts - g_odata->tdata_snapts;
   1178 	hrtime_t tick = g_ndata->tdata_snaptick - g_odata->tdata_snaptick;
   1179 	uint64_t raw = miss->tmiss_count - omiss->tmiss_count;
   1180 	uint64_t diff = g_absolute ? miss->tmiss_count :
   1181 	    (uint64_t)(0.5 + g_interval /
   1182 	    (double)ts * (double)(miss->tmiss_count - omiss->tmiss_count));
   1183 	hrtime_t peffect = raw * g_ndata->tdata_peffect * g_peffect, time;
   1184 	double p;
   1185 
   1186 	/*
   1187 	 * Now we need to account for the trapstat probe effect.  Take
   1188 	 * the amount of time spent in the handler, and add the
   1189 	 * amount of time known to be due to the trapstat probe effect.
   1190 	 */
   1191 	time = miss->tmiss_time - omiss->tmiss_time + peffect;
   1192 
   1193 	if (time >= tick) {
   1194 		/*
   1195 		 * This really shouldn't happen unless our calculation of
   1196 		 * the probe effect was vastly incorrect.  In any case,
   1197 		 * print 99.9 for the time instead of printing negative
   1198 		 * values...
   1199 		 */
   1200 		time = tick / 1000 * 999;
   1201 	}
   1202 
   1203 	p = (double)time / (double)tick * (double)100.0;
   1204 
   1205 	(*g_process)(g_arg, diff, p);
   1206 }
   1207 
   1208 static void
   1209 tlbdata(tstat_tlbdata_t *tlb, tstat_tlbdata_t *otlb)
   1210 {
   1211 	missdata(&tlb->ttlb_tlb, &otlb->ttlb_tlb);
   1212 	missdata(&tlb->ttlb_tsb, &otlb->ttlb_tsb);
   1213 }
   1214 
   1215 static void
   1216 print_missdata(double *ttl, uint64_t diff, double p)
   1217 {
   1218 	TSTAT_PRINT_MISSDATA(diff, p);
   1219 
   1220 	if (ttl != NULL)
   1221 		*ttl += p;
   1222 }
   1223 
   1224 static void
   1225 print_modepgsz(char *prefix, tstat_modedata_t *data, tstat_modedata_t *odata)
   1226 {
   1227 	int ps;
   1228 	size_t incr = sizeof (tstat_pgszdata_t);
   1229 
   1230 	for (ps = 0; ps < g_pgsizes; ps++) {
   1231 		double ttl = 0.0;
   1232 
   1233 		g_process = (void(*)(void *, uint64_t, double))print_missdata;
   1234 		g_arg = &ttl;
   1235 
   1236 		(void) printf("%s %4s|", prefix, g_pgnames[ps]);
   1237 		tlbdata(&data->tmode_itlb, &odata->tmode_itlb);
   1238 		(void) printf(" |");
   1239 		tlbdata(&data->tmode_dtlb, &odata->tmode_dtlb);
   1240 
   1241 		(void) printf(" |%4.1f\n", ttl);
   1242 
   1243 		data = (tstat_modedata_t *)((uintptr_t)data + incr);
   1244 		odata = (tstat_modedata_t *)((uintptr_t)odata + incr);
   1245 	}
   1246 }
   1247 
   1248 static void
   1249 parsable_modepgsz(char *prefix, tstat_modedata_t *data, tstat_modedata_t *odata)
   1250 {
   1251 	int ps;
   1252 	size_t incr = sizeof (tstat_pgszdata_t);
   1253 
   1254 	g_process = (void(*)(void *, uint64_t, double))print_missdata;
   1255 	g_arg = NULL;
   1256 
   1257 	for (ps = 0; ps < g_pgsizes; ps++) {
   1258 		(void) printf("%s %7d", prefix, g_pgsize[ps]);
   1259 		tlbdata(&data->tmode_itlb, &odata->tmode_itlb);
   1260 		tlbdata(&data->tmode_dtlb, &odata->tmode_dtlb);
   1261 		(void) printf("\n");
   1262 
   1263 		data = (tstat_modedata_t *)((uintptr_t)data + incr);
   1264 		odata = (tstat_modedata_t *)((uintptr_t)odata + incr);
   1265 	}
   1266 }
   1267 
   1268 static void
   1269 sum_missdata(void *sump, uint64_t diff, double p)
   1270 {
   1271 	tstat_sum_t *sum = *((tstat_sum_t **)sump);
   1272 
   1273 	sum->tsum_diff += diff;
   1274 	sum->tsum_time += p;
   1275 
   1276 	(*(tstat_sum_t **)sump)++;
   1277 }
   1278 
   1279 static void
   1280 sum_modedata(tstat_modedata_t *data, tstat_modedata_t *odata, tstat_sum_t *sum)
   1281 {
   1282 	int ps, incr = sizeof (tstat_pgszdata_t);
   1283 	tstat_sum_t *sump;
   1284 
   1285 	for (ps = 0; ps < g_pgsizes; ps++) {
   1286 		sump = sum;
   1287 
   1288 		g_process = sum_missdata;
   1289 		g_arg = &sump;
   1290 
   1291 		tlbdata(&data->tmode_itlb, &odata->tmode_itlb);
   1292 		tlbdata(&data->tmode_dtlb, &odata->tmode_dtlb);
   1293 
   1294 		data = (tstat_modedata_t *)((uintptr_t)data + incr);
   1295 		odata = (tstat_modedata_t *)((uintptr_t)odata + incr);
   1296 	}
   1297 }
   1298 
   1299 static void
   1300 print_sum(tstat_sum_t *sum, int divisor)
   1301 {
   1302 	int i;
   1303 	double ttl = 0.0;
   1304 
   1305 	for (i = 0; i < 4; i++) {
   1306 		if (i == 2)
   1307 			(void) printf(" |");
   1308 
   1309 		sum[i].tsum_time /= divisor;
   1310 
   1311 		TSTAT_PRINT_MISSDATA(sum[i].tsum_diff, sum[i].tsum_time);
   1312 		ttl += sum[i].tsum_time;
   1313 	}
   1314 
   1315 	(void) printf(" |%4.1f\n", ttl);
   1316 }
   1317 
   1318 static void
   1319 print_tlbpgsz(tstat_data_t *data, tstat_data_t *odata)
   1320 {
   1321 	int i, cpu, ncpus = 0;
   1322 	char pre[12];
   1323 	tstat_sum_t sum[4];
   1324 
   1325 	(void) printf("cpu m size| %9s %4s %9s %4s | %9s %4s %9s %4s |%4s\n"
   1326 	    "----------+-------------------------------+-----------------------"
   1327 	    "--------+----\n", "itlb-miss", "%tim", "itsb-miss", "%tim",
   1328 	    "dtlb-miss", "%tim", "dtsb-miss", "%tim", "%tim");
   1329 
   1330 	bzero(sum, sizeof (sum));
   1331 
   1332 	for (i = 0; i < g_max_cpus; i++) {
   1333 		tstat_pgszdata_t *pgsz = data->tdata_pgsz;
   1334 		tstat_pgszdata_t *opgsz = odata->tdata_pgsz;
   1335 
   1336 		if ((cpu = data->tdata_cpuid) == -1)
   1337 			break;
   1338 
   1339 		if (i != 0)
   1340 			(void) printf("----------+-----------------------------"
   1341 			    "--+-------------------------------+----\n");
   1342 
   1343 		g_ndata = data;
   1344 		g_odata = odata;
   1345 
   1346 		(void) sprintf(pre, "%3d u", cpu);
   1347 		print_modepgsz(pre, &pgsz->tpgsz_user, &opgsz->tpgsz_user);
   1348 		sum_modedata(&pgsz->tpgsz_user, &opgsz->tpgsz_user, sum);
   1349 
   1350 		(void) printf("- - - - - + - - - - - - - - - - - - - -"
   1351 		    " - + - - - - - - - - - - - - - - - + - -\n");
   1352 
   1353 		(void) sprintf(pre, "%3d k", cpu);
   1354 		print_modepgsz(pre, &pgsz->tpgsz_kernel, &opgsz->tpgsz_kernel);
   1355 		sum_modedata(&pgsz->tpgsz_kernel, &opgsz->tpgsz_kernel, sum);
   1356 
   1357 		data = (tstat_data_t *)((uintptr_t)data + g_datasize);
   1358 		odata = (tstat_data_t *)((uintptr_t)odata + g_datasize);
   1359 		ncpus++;
   1360 	}
   1361 
   1362 	(void) printf("==========+===============================+========="
   1363 	    "======================+====\n");
   1364 	(void) printf("      ttl |");
   1365 	print_sum(sum, ncpus);
   1366 	(void) printf("\n");
   1367 }
   1368 
   1369 static void
   1370 parsable_tlbpgsz(tstat_data_t *data, tstat_data_t *odata)
   1371 {
   1372 	int i, cpu;
   1373 	char pre[30];
   1374 
   1375 	for (i = 0; i < g_max_cpus; i++) {
   1376 		tstat_pgszdata_t *pgsz = data->tdata_pgsz;
   1377 		tstat_pgszdata_t *opgsz = odata->tdata_pgsz;
   1378 
   1379 		if ((cpu = data->tdata_cpuid) == -1)
   1380 			break;
   1381 
   1382 		g_ndata = data;
   1383 		g_odata = odata;
   1384 
   1385 		(void) sprintf(pre, "%lld %3d u",
   1386 		    data->tdata_snapts - g_start, cpu);
   1387 		parsable_modepgsz(pre, &pgsz->tpgsz_user, &opgsz->tpgsz_user);
   1388 
   1389 		pre[strlen(pre) - 1] = 'k';
   1390 		parsable_modepgsz(pre, &pgsz->tpgsz_kernel,
   1391 		    &opgsz->tpgsz_kernel);
   1392 
   1393 		data = (tstat_data_t *)((uintptr_t)data + g_datasize);
   1394 		odata = (tstat_data_t *)((uintptr_t)odata + g_datasize);
   1395 	}
   1396 }
   1397 
   1398 static void
   1399 print_modedata(tstat_modedata_t *data, tstat_modedata_t *odata, int parsable)
   1400 {
   1401 	int ps, i;
   1402 	size_t incr = sizeof (tstat_pgszdata_t);
   1403 	tstat_sum_t sum[4], *sump = sum;
   1404 	double ttl = 0.0;
   1405 
   1406 	bzero(sum, sizeof (sum));
   1407 	g_process = sum_missdata;
   1408 	g_arg = &sump;
   1409 
   1410 	for (ps = 0; ps < g_pgsizes; ps++) {
   1411 		tlbdata(&data->tmode_itlb, &odata->tmode_itlb);
   1412 		tlbdata(&data->tmode_dtlb, &odata->tmode_dtlb);
   1413 
   1414 		data = (tstat_modedata_t *)((uintptr_t)data + incr);
   1415 		odata = (tstat_modedata_t *)((uintptr_t)odata + incr);
   1416 		sump = sum;
   1417 	}
   1418 
   1419 	for (i = 0; i < 4; i++) {
   1420 		if (i == 2 && !parsable)
   1421 			(void) printf(" |");
   1422 
   1423 		TSTAT_PRINT_MISSDATA(sum[i].tsum_diff, sum[i].tsum_time);
   1424 		ttl += sum[i].tsum_time;
   1425 	}
   1426 
   1427 	if (parsable) {
   1428 		(void) printf("\n");
   1429 		return;
   1430 	}
   1431 
   1432 	(void) printf(" |%4.1f\n", ttl);
   1433 }
   1434 
   1435 static void
   1436 print_tlb(tstat_data_t *data, tstat_data_t *odata)
   1437 {
   1438 	int i, cpu, ncpus = 0;
   1439 	tstat_sum_t sum[4];
   1440 
   1441 	(void) printf("cpu m| %9s %4s %9s %4s | %9s %4s %9s %4s |%4s\n"
   1442 	    "-----+-------------------------------+-----------------------"
   1443 	    "--------+----\n", "itlb-miss", "%tim", "itsb-miss", "%tim",
   1444 	    "dtlb-miss", "%tim", "dtsb-miss", "%tim", "%tim");
   1445 
   1446 	bzero(sum, sizeof (sum));
   1447 
   1448 	for (i = 0; i < g_max_cpus; i++) {
   1449 		tstat_pgszdata_t *pgsz = data->tdata_pgsz;
   1450 		tstat_pgszdata_t *opgsz = odata->tdata_pgsz;
   1451 
   1452 		if ((cpu = data->tdata_cpuid) == -1)
   1453 			break;
   1454 
   1455 		if (i != 0)
   1456 			(void) printf("-----+-------------------------------+-"
   1457 			    "------------------------------+----\n");
   1458 
   1459 		g_ndata = data;
   1460 		g_odata = odata;
   1461 
   1462 		(void) printf("%3d u|", cpu);
   1463 		print_modedata(&pgsz->tpgsz_user, &opgsz->tpgsz_user, 0);
   1464 		sum_modedata(&pgsz->tpgsz_user, &opgsz->tpgsz_user, sum);
   1465 
   1466 		(void) printf("%3d k|", cpu);
   1467 		print_modedata(&pgsz->tpgsz_kernel, &opgsz->tpgsz_kernel, 0);
   1468 		sum_modedata(&pgsz->tpgsz_kernel, &opgsz->tpgsz_kernel, sum);
   1469 
   1470 		data = (tstat_data_t *)((uintptr_t)data + g_datasize);
   1471 		odata = (tstat_data_t *)((uintptr_t)odata + g_datasize);
   1472 		ncpus++;
   1473 	}
   1474 
   1475 	(void) printf("=====+===============================+========="
   1476 	    "======================+====\n");
   1477 
   1478 	(void) printf(" ttl |");
   1479 	print_sum(sum, ncpus);
   1480 	(void) printf("\n");
   1481 }
   1482 
   1483 static void
   1484 parsable_tlb(tstat_data_t *data, tstat_data_t *odata)
   1485 {
   1486 	int i, cpu;
   1487 
   1488 	for (i = 0; i < g_max_cpus; i++) {
   1489 		tstat_pgszdata_t *pgsz = data->tdata_pgsz;
   1490 		tstat_pgszdata_t *opgsz = odata->tdata_pgsz;
   1491 
   1492 		if ((cpu = data->tdata_cpuid) == -1)
   1493 			break;
   1494 
   1495 		g_ndata = data;
   1496 		g_odata = odata;
   1497 
   1498 		(void) printf("%lld %3d u ", data->tdata_snapts - g_start, cpu);
   1499 		print_modedata(&pgsz->tpgsz_user, &opgsz->tpgsz_user, 1);
   1500 		(void) printf("%lld %3d k ", data->tdata_snapts - g_start, cpu);
   1501 		print_modedata(&pgsz->tpgsz_kernel, &opgsz->tpgsz_kernel, 1);
   1502 
   1503 		data = (tstat_data_t *)((uintptr_t)data + g_datasize);
   1504 		odata = (tstat_data_t *)((uintptr_t)odata + g_datasize);
   1505 	}
   1506 }
   1507 
   1508 static void
   1509 print_stats(tstat_data_t *data, tstat_data_t *odata)
   1510 {
   1511 	int i, j, k, done;
   1512 	processorid_t id;
   1513 	tstat_data_t *base = data;
   1514 
   1515 	/*
   1516 	 * First, blast through all of the data updating our array
   1517 	 * of active traps.  We keep an array of active traps to prevent
   1518 	 * printing lines for traps that are never seen -- while still printing
   1519 	 * lines for traps that have been seen only once on some CPU.
   1520 	 */
   1521 	for (i = 0; i < g_max_cpus; i++) {
   1522 		if (data[i].tdata_cpuid == -1)
   1523 			break;
   1524 
   1525 		for (j = 0; j < TSTAT_NENT; j++) {
   1526 			if (!data[i].tdata_traps[j] || g_active[j])
   1527 				continue;
   1528 
   1529 			g_active[j] = 1;
   1530 		}
   1531 	}
   1532 
   1533 	data = base;
   1534 
   1535 	for (done = 0; !done; data += g_cpus_per_line) {
   1536 		for (i = 0; i < g_cpus_per_line; i++) {
   1537 			if (&data[i] - base >= g_max_cpus)
   1538 				break;
   1539 
   1540 			if ((id = data[i].tdata_cpuid) == -1)
   1541 				break;
   1542 
   1543 			if (i == 0)
   1544 				(void) printf("vct name                |");
   1545 
   1546 			(void) printf("   %scpu%d", id >= 100 ? "" :
   1547 			    id >= 10 ? " " : "  ", id);
   1548 		}
   1549 
   1550 		if (i == 0)
   1551 			break;
   1552 
   1553 		if (i != g_cpus_per_line)
   1554 			done = 1;
   1555 
   1556 		(void) printf("\n------------------------+");
   1557 
   1558 		for (j = 0; j < i; j++)
   1559 			(void) printf("---------");
   1560 		(void) printf("\n");
   1561 
   1562 		for (j = 0; j < TSTAT_NENT; j++) {
   1563 			if (!g_active[j])
   1564 				continue;
   1565 
   1566 			(void) printf("%3x %-20s|", j, g_traps[j].tent_name);
   1567 			for (k = 0; k < i; k++) {
   1568 				(void) printf(" %8lld", TSTAT_DELTA(&data[k],
   1569 				    &odata[data - base + k], tdata_traps[j]));
   1570 			}
   1571 			(void) printf("\n");
   1572 		}
   1573 		(void) printf("\n");
   1574 	}
   1575 }
   1576 
   1577 static void
   1578 parsable_stats(tstat_data_t *data, tstat_data_t *odata)
   1579 {
   1580 	tstat_data_t *base;
   1581 	int i;
   1582 
   1583 	for (base = data; data - base < g_max_cpus; data++, odata++) {
   1584 		if (data->tdata_cpuid == -1)
   1585 			break;
   1586 
   1587 		for (i = 0; i < TSTAT_NENT; i++) {
   1588 			if (!data->tdata_traps[i] && !g_active[i])
   1589 				continue;
   1590 
   1591 			(void) printf("%lld %d %x %s ",
   1592 			    data->tdata_snapts - g_start, data->tdata_cpuid, i,
   1593 			    g_traps[i].tent_name);
   1594 
   1595 			(void) printf("%lld\n", TSTAT_DELTA(data, odata,
   1596 			    tdata_traps[i]));
   1597 		}
   1598 	}
   1599 }
   1600 
   1601 static void
   1602 check_data(tstat_data_t *data, tstat_data_t *odata)
   1603 {
   1604 	tstat_data_t *ndata;
   1605 	int i;
   1606 
   1607 	if (data->tdata_cpuid == -1) {
   1608 		/*
   1609 		 * The last CPU we were watching must have been DR'd out
   1610 		 * of the system.  Print a vaguely useful message and exit.
   1611 		 */
   1612 		fatal("all initially selected CPUs have been unconfigured\n");
   1613 	}
   1614 
   1615 	/*
   1616 	 * If a CPU is DR'd out of the system, we'll stop receiving data
   1617 	 * for it.  CPUs are never added, however (that is, if a CPU is
   1618 	 * DR'd into the system, we won't automatically start receiving
   1619 	 * data for it).  We check for this by making sure that all of
   1620 	 * the CPUs present in the old data are present in the new data.
   1621 	 * If we find one missing in the new data, we correct the old data
   1622 	 * by removing the old CPU.  This assures that delta are printed
   1623 	 * correctly.
   1624 	 */
   1625 	for (i = 0; i < g_max_cpus; i++) {
   1626 		if (odata->tdata_cpuid == -1)
   1627 			return;
   1628 
   1629 		if (data->tdata_cpuid != odata->tdata_cpuid)
   1630 			break;
   1631 
   1632 		data = (tstat_data_t *)((uintptr_t)data + g_datasize);
   1633 		odata = (tstat_data_t *)((uintptr_t)odata + g_datasize);
   1634 	}
   1635 
   1636 	if (i == g_max_cpus)
   1637 		return;
   1638 
   1639 	/*
   1640 	 * If we're here, we know that the odata is a CPU which has been
   1641 	 * DR'd out.  We'll now smoosh it out of the old data.
   1642 	 */
   1643 	for (odata->tdata_cpuid = -1; i < g_max_cpus - 1; i++) {
   1644 		ndata = (tstat_data_t *)((uintptr_t)odata + g_datasize);
   1645 		bcopy(ndata, odata, g_datasize);
   1646 		ndata->tdata_cpuid = -1;
   1647 	}
   1648 
   1649 	/*
   1650 	 * There may be other CPUs DR'd out; tail-call recurse.
   1651 	 */
   1652 	check_data(data, odata);
   1653 }
   1654 
   1655 int
   1656 main(int argc, char **argv)
   1657 {
   1658 	processorid_t id;
   1659 	char c, *end;
   1660 	ulong_t indefinite;
   1661 	long count = 0, rate = 0;
   1662 	int list = 0, parsable = 0;
   1663 	void (*print)(tstat_data_t *, tstat_data_t *);
   1664 	sigset_t set;
   1665 
   1666 	struct {
   1667 		char opt;
   1668 		void (*print)(tstat_data_t *, tstat_data_t *);
   1669 		void (*parsable)(tstat_data_t *, tstat_data_t *);
   1670 		int repeat;
   1671 	} tab[] = {
   1672 		{ '\0',	print_stats,	parsable_stats,		0 },
   1673 		{ 'e',	print_stats,	parsable_stats,		1 },
   1674 		{ 't',	print_tlb,	parsable_tlb,		0 },
   1675 		{ 'T',	print_tlbpgsz,	parsable_tlbpgsz,	0 },
   1676 		{ -1,	NULL,		NULL,			0 }
   1677 	}, *tabent = NULL, *iter;
   1678 
   1679 	uintptr_t offs = (uintptr_t)&tab->print - (uintptr_t)tab;
   1680 
   1681 	/*
   1682 	 * If argv[0] is non-NULL, set argv[0] to keep any getopt(3C) output
   1683 	 * consistent with other error output.
   1684 	 */
   1685 	if (argv[0] != NULL)
   1686 		argv[0] = TSTAT_COMMAND;
   1687 
   1688 	if ((g_fd = open(TSTAT_DEVICE, O_RDWR)) == -1)
   1689 		fatal("couldn't open " TSTAT_DEVICE);
   1690 
   1691 	setup();
   1692 
   1693 	while ((c = getopt(argc, argv, "alnNtTc:C:r:e:P")) != EOF) {
   1694 		/*
   1695 		 * First, check to see if this option changes our printing
   1696 		 * function.
   1697 		 */
   1698 		for (iter = tab; iter->opt >= 0; iter++) {
   1699 			if (c != iter->opt)
   1700 				continue;
   1701 
   1702 			if (tabent != NULL) {
   1703 				if (tabent == iter) {
   1704 					if (tabent->repeat) {
   1705 						/*
   1706 						 * This option is allowed to
   1707 						 * have repeats; break out.
   1708 						 */
   1709 						break;
   1710 					}
   1711 
   1712 					fatal("expected -%c at most once\n", c);
   1713 				}
   1714 
   1715 				fatal("only one of -%c, -%c expected\n",
   1716 				    tabent->opt, c);
   1717 			}
   1718 
   1719 			tabent = iter;
   1720 			break;
   1721 		}
   1722 
   1723 		switch (c) {
   1724 		case 'a':
   1725 			g_absolute = 1;
   1726 			break;
   1727 
   1728 		case 'e': {
   1729 			char *s = strtok(optarg, ",");
   1730 
   1731 			while (s != NULL) {
   1732 				select_entry(s);
   1733 				s = strtok(NULL, ",");
   1734 			}
   1735 
   1736 			break;
   1737 		}
   1738 
   1739 		case 'l':
   1740 			list = 1;
   1741 			break;
   1742 
   1743 		case 'n':
   1744 			/*
   1745 			 * This undocumented option prevents trapstat from
   1746 			 * actually switching the %tba to point to the
   1747 			 * interposing trap table.  It's very useful when
   1748 			 * debugging trapstat bugs:  one can specify "-n"
   1749 			 * and then examine the would-be interposing trap
   1750 			 * table without running the risk of RED stating.
   1751 			 */
   1752 			if (ioctl(g_fd, TSTATIOC_NOGO) == -1)
   1753 				fatal("TSTATIOC_NOGO");
   1754 			break;
   1755 
   1756 		case 'N':
   1757 			/*
   1758 			 * This undocumented option forces trapstat to ignore
   1759 			 * its determined probe effect.  This may be useful
   1760 			 * if it is believed that the probe effect has been
   1761 			 * grossly overestimated.
   1762 			 */
   1763 			g_peffect = 0;
   1764 			break;
   1765 
   1766 		case 't':
   1767 		case 'T':
   1768 			/*
   1769 			 * When running with TLB statistics, we want to
   1770 			 * minimize probe effect by running with all other
   1771 			 * entries explicitly disabled.
   1772 			 */
   1773 			if (ioctl(g_fd, TSTATIOC_NOENTRY) == -1)
   1774 				fatal("TSTATIOC_NOENTRY");
   1775 
   1776 			if (ioctl(g_fd, TSTATIOC_TLBDATA) == -1)
   1777 				fatal("TSTATIOC_TLBDATA");
   1778 			break;
   1779 
   1780 		case 'c': {
   1781 			/*
   1782 			 * We allow CPUs to be specified as an optionally
   1783 			 * comma separated list of either CPU IDs or ranges
   1784 			 * of CPU IDs.
   1785 			 */
   1786 			char *s = strtok(optarg, ",");
   1787 
   1788 			while (s != NULL) {
   1789 				id = strtoul(s, &end, 0);
   1790 
   1791 				if (id == ULONG_MAX && errno == ERANGE) {
   1792 					*end = '\0';
   1793 					fatal("invalid cpu '%s'\n", s);
   1794 				}
   1795 
   1796 				if (*(s = end) != '\0') {
   1797 					processorid_t p;
   1798 
   1799 					if (*s != '-')
   1800 						fatal("invalid cpu '%s'\n", s);
   1801 					p = strtoul(++s, &end, 0);
   1802 
   1803 					if (*end != '\0' ||
   1804 					    (p == ULONG_MAX && errno == ERANGE))
   1805 						fatal("invalid cpu '%s'\n", s);
   1806 
   1807 					select_cpus(id, p);
   1808 				} else {
   1809 					select_cpu(id);
   1810 				}
   1811 
   1812 				s = strtok(NULL, ",");
   1813 			}
   1814 
   1815 			break;
   1816 		}
   1817 
   1818 		case 'C': {
   1819 			psetid_t pset = strtoul(optarg, &end, 0);
   1820 
   1821 			if (*end != '\0' ||
   1822 			    (pset == ULONG_MAX && errno == ERANGE))
   1823 				fatal("invalid processor set '%s'\n", optarg);
   1824 
   1825 			select_pset(pset);
   1826 			break;
   1827 		}
   1828 
   1829 		case 'r': {
   1830 			rate = strtol(optarg, &end, 0);
   1831 
   1832 			if (*end != '\0' ||
   1833 			    (rate == LONG_MAX && errno == ERANGE))
   1834 				fatal("invalid rate '%s'\n", optarg);
   1835 
   1836 			if (rate <= 0)
   1837 				fatal("rate must be greater than zero\n");
   1838 
   1839 			if (rate > TSTAT_MAX_RATE)
   1840 				fatal("rate may not exceed %d\n",
   1841 				    TSTAT_MAX_RATE);
   1842 
   1843 			set_interval(NANOSEC / rate);
   1844 			break;
   1845 		}
   1846 
   1847 		case 'P':
   1848 			offs = (uintptr_t)&tab->parsable - (uintptr_t)tab;
   1849 			parsable = 1;
   1850 			break;
   1851 
   1852 		default:
   1853 			usage();
   1854 		}
   1855 	}
   1856 
   1857 	if (list) {
   1858 		print_entries(stdout, parsable);
   1859 		exit(EXIT_SUCCESS);
   1860 	}
   1861 
   1862 	if (optind != argc) {
   1863 
   1864 		int interval = strtol(argv[optind], &end, 0);
   1865 
   1866 		if (*end != '\0') {
   1867 			/*
   1868 			 * That wasn't a valid number.  It must be that we're
   1869 			 * to execute this command.
   1870 			 */
   1871 			switch (vfork()) {
   1872 			case 0:
   1873 				(void) close(g_fd);
   1874 				(void) sigprocmask(SIG_SETMASK, &g_oset, NULL);
   1875 				(void) execvp(argv[optind], &argv[optind]);
   1876 
   1877 				/*
   1878 				 * No luck.  Set errno.
   1879 				 */
   1880 				g_exec_errno = errno;
   1881 				_exit(EXIT_FAILURE);
   1882 				/*NOTREACHED*/
   1883 			case -1:
   1884 				fatal("cannot fork");
   1885 				/*NOTREACHED*/
   1886 			default:
   1887 				break;
   1888 			}
   1889 		} else {
   1890 			if (interval <= 0)
   1891 				fatal("interval must be greater than zero.\n");
   1892 
   1893 			if (interval == LONG_MAX && errno == ERANGE)
   1894 				fatal("invalid interval '%s'\n", argv[optind]);
   1895 
   1896 			set_interval(NANOSEC * (hrtime_t)interval);
   1897 
   1898 			if (++optind != argc) {
   1899 				char *s = argv[optind];
   1900 
   1901 				count = strtol(s, &end, 0);
   1902 
   1903 				if (*end != '\0' || count <= 0 ||
   1904 				    (count == LONG_MAX && errno == ERANGE))
   1905 					fatal("invalid count '%s'\n", s);
   1906 			}
   1907 		}
   1908 	} else {
   1909 		if (!rate)
   1910 			set_interval(NANOSEC);
   1911 	}
   1912 
   1913 	if (tabent == NULL)
   1914 		tabent = tab;
   1915 
   1916 	print = *(void(**)(tstat_data_t *, tstat_data_t *))
   1917 	    ((uintptr_t)tabent + offs);
   1918 
   1919 	for (id = 0; id < g_max_cpus; id++) {
   1920 		if (!g_selected[id])
   1921 			continue;
   1922 
   1923 		if (ioctl(g_fd, TSTATIOC_CPU, id) == -1)
   1924 			fatal("TSTATIOC_CPU failed for cpu %d", id);
   1925 	}
   1926 
   1927 	g_start = gethrtime();
   1928 
   1929 	if (ioctl(g_fd, TSTATIOC_GO) == -1)
   1930 		fatal("TSTATIOC_GO failed");
   1931 
   1932 	if (ioctl(g_fd, TSTATIOC_READ, g_data[g_gen ^ 1]) == -1)
   1933 		fatal("initial TSTATIOC_READ failed");
   1934 
   1935 	(void) sigemptyset(&set);
   1936 
   1937 	for (indefinite = (count == 0); indefinite || count; count--) {
   1938 
   1939 		(void) sigsuspend(&set);
   1940 
   1941 		if (g_winch) {
   1942 			g_winch = 0;
   1943 			continue;
   1944 		}
   1945 
   1946 		if (g_child_exited && g_exec_errno != 0) {
   1947 			errno = g_exec_errno;
   1948 			fatal("could not execute %s", argv[optind]);
   1949 		}
   1950 
   1951 		if (ioctl(g_fd, TSTATIOC_READ, g_data[g_gen]) == -1)
   1952 			fatal("TSTATIOC_READ failed");
   1953 
   1954 		/*
   1955 		 * Before we blithely print the data, we need to
   1956 		 * make sure that we haven't lost a CPU.
   1957 		 */
   1958 		check_data(g_data[g_gen], g_data[g_gen ^ 1]);
   1959 		(*print)(g_data[g_gen], g_data[g_gen ^ 1]);
   1960 		(void) fflush(stdout);
   1961 
   1962 		if (g_child_exited) {
   1963 			if (WIFEXITED(g_child_status)) {
   1964 				if (WEXITSTATUS(g_child_status) == 0)
   1965 					break;
   1966 
   1967 				(void) fprintf(stderr, TSTAT_COMMAND ": "
   1968 				    "warning: %s exited with code %d\n",
   1969 				    argv[optind], WEXITSTATUS(g_child_status));
   1970 			} else {
   1971 				(void) fprintf(stderr, TSTAT_COMMAND ": "
   1972 				    "warning: %s died on signal %d\n",
   1973 				    argv[optind], WTERMSIG(g_child_status));
   1974 			}
   1975 			break;
   1976 		}
   1977 
   1978 		check_pset();
   1979 
   1980 		g_gen ^= 1;
   1981 	}
   1982 
   1983 	return (0);
   1984 }
   1985