1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #include <ctype.h>
30 #include <string.h>
31 #include <sys/param.h>
32 #include <stdlib.h>
33 #include "gprof.h"
34 
35 void print_demangled_name(int, nltype *);
36 void striped_name(char *, nltype **);
37 
38 extern long hz;
39 
40 /*
41  * Symbols that must never be printed, no matter what.
42  */
43 char *splsym[] = {
44 	PRF_ETEXT,
45 	PRF_EXTSYM,
46 	PRF_MEMTERM,
47 	NULL
48 };
49 
50 static bool is_special_sym(nltype *nlp);
51 
52 char *
53 demangled_name(nltype *selfp)
54 {
55 	char *name;
56 	if (!Cflag)
57 		return (selfp->name);
58 
59 	name = (char *)sgs_demangle(selfp->name);
60 	return (name);
61 }
62 
63 void
64 printprof(void)
65 {
66 	nltype	*np;
67 	nltype	**sortednlp;
68 	int	i, index;
69 	int 	print_count = number_funcs_toprint;
70 	bool	print_flag = TRUE;
71 	mod_info_t	*mi;
72 
73 	actime = 0.0;
74 	(void) printf("\f\n");
75 	flatprofheader();
76 
77 	/*
78 	 *	Sort the symbol table in by time
79 	 */
80 	sortednlp = (nltype **) calloc(total_names, sizeof (nltype *));
81 	if (sortednlp == (nltype **) 0) {
82 		(void) fprintf(stderr,
83 		    "[printprof] ran out of memory for time sorting\n");
84 	}
85 
86 	index = 0;
87 	for (mi = &modules; mi; mi = mi->next) {
88 		for (i = 0; i < mi->nname; i++)
89 			sortednlp[index++] = &(mi->nl[i]);
90 	}
91 
92 	qsort(sortednlp, total_names, sizeof (nltype *), timecmp);
93 
94 	for (index = 0; (index < total_names) && print_flag; index += 1) {
95 		np = sortednlp[index];
96 		flatprofline(np);
97 		if (nflag) {
98 			if (--print_count == 0)
99 				print_flag = FALSE;
100 		}
101 	}
102 	actime = 0.0;
103 	free(sortednlp);
104 }
105 
106 int
107 timecmp(const void *arg1, const void *arg2)
108 {
109 	nltype **npp1 = (nltype **)arg1;
110 	nltype **npp2 = (nltype **)arg2;
111 	double	timediff;
112 	long	calldiff;
113 
114 	timediff = (*npp2)->time - (*npp1)->time;
115 
116 	if (timediff > 0.0)
117 		return (1);
118 
119 	if (timediff < 0.0)
120 		return (-1);
121 
122 	calldiff = (*npp2)->ncall - (*npp1)->ncall;
123 
124 	if (calldiff > 0)
125 		return (1);
126 
127 	if (calldiff < 0)
128 		return (-1);
129 
130 	return (strcmp((*npp1)->name, (*npp2)->name));
131 }
132 
133 /*
134  *	header for flatprofline
135  */
136 void
137 flatprofheader()
138 {
139 
140 	if (bflag)
141 		printblurb(FLAT_BLURB);
142 
143 	if (old_style) {
144 		(void) printf(
145 		    "\ngranularity: each sample hit covers %d byte(s)",
146 		    (long)scale * sizeof (UNIT));
147 		if (totime > 0.0) {
148 			(void) printf(" for %.2f%% of %.2f seconds\n\n",
149 			    100.0/totime, totime / hz);
150 		} else {
151 			(void) printf(" no time accumulated\n\n");
152 			/*
153 			 * this doesn't hurt since all the numerators will
154 			 * be zero.
155 			 */
156 			totime = 1.0;
157 		}
158 	}
159 
160 	(void) printf("%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s %-8.8s\n",
161 	    "% ", "cumulative", "self ", "", "self ", "total ", "");
162 	(void) printf("%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s %-8.8s\n",
163 	    "time", "seconds ", "seconds", "calls",
164 	    "ms/call", "ms/call", "name");
165 }
166 
167 void
168 flatprofline(nltype *np)
169 {
170 	if (zflag == 0 && np->ncall == 0 && np->time == 0)
171 		return;
172 
173 	/*
174 	 * Do not print certain special symbols, like PRF_EXTSYM, etc.
175 	 * even if zflag was on.
176 	 */
177 	if (is_special_sym(np))
178 		return;
179 
180 	actime += np->time;
181 
182 	(void) printf("%5.1f %10.2f %8.2f",
183 	    100 * np->time / totime, actime / hz, np->time / hz);
184 
185 	if (np->ncall != 0) {
186 		(void) printf(" %8lld %8.2f %8.2f  ", np->ncall,
187 		    1000 * np->time / hz / np->ncall,
188 		    1000 * (np->time + np->childtime) / hz / np->ncall);
189 	} else {
190 		if (!Cflag)
191 			(void) printf(" %8.8s %8.8s %8.8s ", "", "", "");
192 		else
193 			(void) printf(" %8.8s %8.8s %8.8s  ", "", "", "");
194 	}
195 
196 	printname(np);
197 
198 	if (Cflag)
199 		print_demangled_name(55, np);
200 
201 	(void) printf("\n");
202 }
203 
204 void
205 gprofheader()
206 {
207 
208 	if (bflag)
209 		printblurb(CALLG_BLURB);
210 
211 	if (old_style) {
212 
213 		(void) printf(
214 		    "\ngranularity: each sample hit covers %d byte(s)",
215 		    (long)scale * sizeof (UNIT));
216 
217 		if (printtime > 0.0) {
218 			(void) printf(" for %.2f%% of %.2f seconds\n\n",
219 			    100.0/printtime, printtime / hz);
220 		} else {
221 			(void) printf(" no time propagated\n\n");
222 			/*
223 			 * this doesn't hurt, since all the numerators
224 			 * will be 0.0
225 			 */
226 			printtime = 1.0;
227 		}
228 	} else {
229 		(void) printf(
230 		    "\ngranularity: each pc-hit is considered 1 tick");
231 		if (hz != 1) {
232 			(void) printf(" (@ %4.3f seconds per tick)",
233 			    (double)1.0 / hz);
234 		}
235 		(void) puts("\n\n");
236 	}
237 
238 	(void) printf("%6.6s %5.5s %7.7s %11.11s %7.7s/%-7.7s     %-8.8s\n",
239 	    "", "", "", "", "called", "total", "parents");
240 	(void) printf("%-6.6s %5.5s %7.7s %11.11s %7.7s+%-7.7s %-8.8s\t%5.5s\n",
241 	    "index", "%time", "self", "descendents",
242 	    "called", "self", "name", "index");
243 	(void) printf("%6.6s %5.5s %7.7s %11.11s %7.7s/%-7.7s     %-8.8s\n",
244 	    "", "", "", "", "called", "total", "children");
245 	(void) printf("\n");
246 }
247 
248 void
249 gprofline(nltype *np)
250 {
251 	char	kirkbuffer[BUFSIZ];
252 
253 	(void) sprintf(kirkbuffer, "[%d]", np->index);
254 	(void) printf("%-6.6s %5.1f %7.2f %11.2f", kirkbuffer,
255 	    100 * (np->propself + np->propchild) / printtime,
256 	    np->propself / hz, np->propchild / hz);
257 
258 	if ((np->ncall + np->selfcalls) != 0) {
259 		(void) printf(" %7lld", np->ncall);
260 
261 		if (np->selfcalls != 0)
262 			(void) printf("+%-7lld ", np->selfcalls);
263 		else
264 			(void) printf(" %7.7s ", "");
265 	} else {
266 		(void) printf(" %7.7s %7.7s ", "", "");
267 	}
268 
269 	printname(np);
270 
271 	if (Cflag)
272 		print_demangled_name(50, np);
273 
274 	(void) printf("\n");
275 }
276 
277 static bool
278 is_special_sym(nltype *nlp)
279 {
280 	int	i;
281 
282 	if (nlp->name == NULL)
283 		return (FALSE);
284 
285 	for (i = 0;  splsym[i]; i++)
286 		if (strcmp(splsym[i], nlp->name) == 0)
287 			return (TRUE);
288 
289 	return (FALSE);
290 }
291 
292 void
293 printgprof(nltype **timesortnlp)
294 {
295 	int	index;
296 	nltype	*parentp;
297 	int 	print_count = number_funcs_toprint;
298 	bool	count_flag = TRUE;
299 
300 	/*
301 	 * Print out the structured profiling list
302 	 */
303 	gprofheader();
304 
305 	for (index = 0; index < total_names + ncycle && count_flag; index++) {
306 		parentp = timesortnlp[index];
307 		if (zflag == 0 && parentp->ncall == 0 &&
308 		    parentp->selfcalls == 0 && parentp->propself == 0 &&
309 		    parentp -> propchild == 0)
310 			continue;
311 
312 		if (!parentp->printflag)
313 			continue;
314 
315 		/*
316 		 * Do not print certain special symbols, like PRF_EXTSYM, etc.
317 		 * even if zflag was on.
318 		 */
319 		if (is_special_sym(parentp))
320 			continue;
321 
322 		if (parentp->name == 0 && parentp->cycleno != 0) {
323 			/*
324 			 *	cycle header
325 			 */
326 			printcycle(parentp);
327 			printmembers(parentp);
328 		} else {
329 			printparents(parentp);
330 			gprofline(parentp);
331 			printchildren(parentp);
332 		}
333 
334 		(void) printf("\n");
335 		(void) printf(
336 		    "-----------------------------------------------\n");
337 		(void) printf("\n");
338 
339 		if (nflag) {
340 			--print_count;
341 			if (print_count == 0)
342 				count_flag = FALSE;
343 		}
344 	}
345 	free(timesortnlp);
346 }
347 
348 /*
349  *	sort by decreasing propagated time
350  *	if times are equal, but one is a cycle header,
351  *		say that's first (e.g. less, i.e. -1).
352  *	if one's name doesn't have an underscore and the other does,
353  *		say the one is first.
354  *	all else being equal, sort by names.
355  */
356 int
357 totalcmp(const void *arg1, const void *arg2)
358 {
359 	nltype **npp1 = (nltype **)arg1;
360 	nltype **npp2 = (nltype **)arg2;
361 	nltype	*np1 = *npp1;
362 	nltype	*np2 = *npp2;
363 	double	diff;
364 
365 	diff = (np1->propself + np1->propchild) -
366 	    (np2->propself + np2->propchild);
367 
368 	if (diff < 0.0)
369 		return (1);
370 	if (diff > 0.0)
371 		return (-1);
372 	if (np1->name == 0 && np1->cycleno != 0)
373 		return (-1);
374 	if (np2->name == 0 && np2->cycleno != 0)
375 		return (1);
376 	if (np1->name == 0)
377 		return (-1);
378 	if (np2->name == 0)
379 		return (1);
380 
381 	if (*(np1->name) != '_' && *(np2->name) == '_')
382 		return (-1);
383 	if (*(np1->name) == '_' && *(np2->name) != '_')
384 		return (1);
385 	if (np1->ncall > np2->ncall)
386 		return (-1);
387 	if (np1->ncall < np2->ncall)
388 		return (1);
389 	return (strcmp(np1->name, np2->name));
390 }
391 
392 void
393 printparents(nltype *childp)
394 {
395 	nltype	*parentp;
396 	arctype	*arcp;
397 	nltype	*cycleheadp;
398 
399 	if (childp->cyclehead != 0)
400 		cycleheadp = childp -> cyclehead;
401 	else
402 		cycleheadp = childp;
403 
404 	if (childp->parents == 0) {
405 		(void) printf("%6.6s %5.5s %7.7s %11.11s %7.7s %7.7s"
406 		    "     <spontaneous>\n", "", "", "", "", "", "");
407 		return;
408 	}
409 
410 	sortparents(childp);
411 
412 	for (arcp = childp->parents; arcp; arcp = arcp->arc_parentlist) {
413 		parentp = arcp -> arc_parentp;
414 		if (childp == parentp || (childp->cycleno != 0 &&
415 		    parentp->cycleno == childp->cycleno)) {
416 			/*
417 			 *	selfcall or call among siblings
418 			 */
419 			(void) printf(
420 			    "%6.6s %5.5s %7.7s %11.11s %7lld %7.7s     ",
421 			    "", "", "", "", arcp->arc_count, "");
422 			printname(parentp);
423 
424 			if (Cflag)
425 				print_demangled_name(54, parentp);
426 
427 			(void) printf("\n");
428 		} else {
429 			/*
430 			 *	regular parent of child
431 			 */
432 			(void) printf(
433 			    "%6.6s %5.5s %7.2f %11.2f %7lld/%-7lld     ", "",
434 			    "", arcp->arc_time / hz, arcp->arc_childtime / hz,
435 			    arcp->arc_count, cycleheadp->ncall);
436 			printname(parentp);
437 
438 			if (Cflag)
439 				print_demangled_name(54, parentp);
440 
441 			(void) printf("\n");
442 		}
443 	}
444 }
445 
446 void
447 printchildren(nltype *parentp)
448 {
449 	nltype	*childp;
450 	arctype	*arcp;
451 
452 	sortchildren(parentp);
453 
454 	for (arcp = parentp->children; arcp; arcp = arcp->arc_childlist) {
455 		childp = arcp->arc_childp;
456 		if (childp == parentp || (childp->cycleno != 0 &&
457 		    childp->cycleno == parentp->cycleno)) {
458 			/*
459 			 * self call or call to sibling
460 			 */
461 			(void) printf(
462 			    "%6.6s %5.5s %7.7s %11.11s %7lld %7.7s     ",
463 			    "", "", "", "", arcp->arc_count, "");
464 			printname(childp);
465 
466 			if (Cflag)
467 				print_demangled_name(54, childp);
468 
469 			(void) printf("\n");
470 		} else {
471 			/*
472 			 *	regular child of parent
473 			 */
474 			if (childp->cyclehead)
475 				(void) printf("%6.6s %5.5s %7.2f %11.2f "
476 				    "%7lld/%-7lld     ", "", "",
477 				    arcp->arc_time / hz,
478 				    arcp->arc_childtime / hz, arcp->arc_count,
479 				    childp->cyclehead->ncall);
480 			else
481 				(void) printf("%6.6s %5.5s %7.2f %11.2f "
482 				    "%7lld %7.7s    ",
483 				    "", "", arcp->arc_time / hz,
484 				    arcp->arc_childtime / hz, arcp->arc_count,
485 				    "");
486 
487 			printname(childp);
488 
489 			if (Cflag)
490 				print_demangled_name(54, childp);
491 
492 			(void) printf("\n");
493 		}
494 	}
495 }
496 
497 void
498 printname(nltype *selfp)
499 {
500 	char  *c;
501 	c = demangled_name(selfp);
502 
503 	if (selfp->name != 0) {
504 		if (!Cflag)
505 			(void) printf("%s", selfp->name);
506 		else
507 			(void) printf("%s", c);
508 
509 #ifdef DEBUG
510 		if (debug & DFNDEBUG)
511 			(void) printf("{%d} ", selfp->toporder);
512 
513 		if (debug & PROPDEBUG)
514 			(void) printf("%5.2f%% ", selfp->propfraction);
515 #endif /* DEBUG */
516 	}
517 
518 	if (selfp->cycleno != 0)
519 		(void) printf("\t<cycle %d>", selfp->cycleno);
520 
521 	if (selfp->index != 0) {
522 		if (selfp->printflag)
523 			(void) printf(" [%d]", selfp->index);
524 		else
525 			(void) printf(" (%d)", selfp->index);
526 	}
527 }
528 
529 void
530 print_demangled_name(int n, nltype *selfp)
531 {
532 	char *c;
533 	int i;
534 
535 	c = selfp->name;
536 
537 	if (strcmp(c, demangled_name(selfp)) == 0)
538 		return;
539 	else {
540 		(void) printf("\n");
541 		for (i = 1; i < n; i++)
542 			(void) printf(" ");
543 		(void) printf("[%s]", selfp->name);
544 	}
545 }
546 
547 void
548 sortchildren(nltype *parentp)
549 {
550 	arctype	*arcp;
551 	arctype	*detachedp;
552 	arctype	sorted;
553 	arctype	*prevp;
554 
555 	/*
556 	 *	unlink children from parent,
557 	 *	then insertion sort back on to sorted's children.
558 	 *	    *arcp	the arc you have detached and are inserting.
559 	 *	    *detachedp	the rest of the arcs to be sorted.
560 	 *	    sorted	arc list onto which you insertion sort.
561 	 *	    *prevp	arc before the arc you are comparing.
562 	 */
563 	sorted.arc_childlist = 0;
564 
565 	/* LINTED: warning: assignment operator */
566 	for ((arcp = parentp->children) && (detachedp = arcp->arc_childlist);
567 	    arcp;
568 	    /* LINTED: warning: assignment operator */
569 	    (arcp = detachedp) && (detachedp = detachedp->arc_childlist)) {
570 		/*
571 		 *	consider *arcp as disconnected
572 		 *	insert it into sorted
573 		 */
574 		for (prevp = &sorted; prevp->arc_childlist;
575 		    prevp = prevp->arc_childlist) {
576 			if (arccmp(arcp, prevp->arc_childlist) != LESSTHAN)
577 				break;
578 		}
579 
580 		arcp->arc_childlist = prevp->arc_childlist;
581 		prevp->arc_childlist = arcp;
582 	}
583 
584 	/*
585 	 *	reattach sorted children to parent
586 	 */
587 	parentp->children = sorted.arc_childlist;
588 }
589 
590 void
591 sortparents(nltype *childp)
592 {
593 	arctype	*arcp;
594 	arctype	*detachedp;
595 	arctype	sorted;
596 	arctype	*prevp;
597 
598 	/*
599 	 *	unlink parents from child,
600 	 *	then insertion sort back on to sorted's parents.
601 	 *	    *arcp	the arc you have detached and are inserting.
602 	 *	    *detachedp	the rest of the arcs to be sorted.
603 	 *	    sorted	arc list onto which you insertion sort.
604 	 *	    *prevp	arc before the arc you are comparing.
605 	 */
606 	sorted.arc_parentlist = 0;
607 
608 	/* LINTED: warning: assignment operator */
609 	for ((arcp = childp->parents) && (detachedp = arcp->arc_parentlist);
610 	    arcp;
611 	    /* LINTED: warning: assignment operator */
612 	    (arcp = detachedp) && (detachedp = detachedp->arc_parentlist)) {
613 		/*
614 		 *	consider *arcp as disconnected
615 		 *	insert it into sorted
616 		 */
617 		for (prevp = &sorted; prevp->arc_parentlist;
618 		    prevp = prevp->arc_parentlist) {
619 			if (arccmp(arcp, prevp->arc_parentlist) != GREATERTHAN)
620 				break;
621 		}
622 		arcp->arc_parentlist = prevp->arc_parentlist;
623 		prevp->arc_parentlist = arcp;
624 	}
625 
626 	/*
627 	 *	reattach sorted arcs to child
628 	 */
629 	childp->parents = sorted.arc_parentlist;
630 }
631 
632 void
633 printcycle(nltype *cyclep)
634 {
635 	char	kirkbuffer[BUFSIZ];
636 
637 	(void) sprintf(kirkbuffer, "[%d]", cyclep->index);
638 	(void) printf("%-6.6s %5.1f %7.2f %11.2f %7lld", kirkbuffer,
639 	    100 * (cyclep->propself + cyclep->propchild) / printtime,
640 	    cyclep -> propself / hz, cyclep -> propchild / hz,
641 	    cyclep -> ncall);
642 
643 	if (cyclep->selfcalls != 0)
644 		(void) printf("+%-7lld", cyclep->selfcalls);
645 	else
646 		(void) printf(" %7.7s", "");
647 
648 	(void) printf(" <cycle %d as a whole>\t[%d]\n", cyclep->cycleno,
649 	    cyclep->index);
650 }
651 
652 /*
653  *	print the members of a cycle
654  */
655 void
656 printmembers(nltype *cyclep)
657 {
658 	nltype	*memberp;
659 
660 	sortmembers(cyclep);
661 
662 	for (memberp = cyclep->cnext; memberp; memberp = memberp->cnext) {
663 		(void) printf("%6.6s %5.5s %7.2f %11.2f %7lld", "", "",
664 		    memberp->propself / hz, memberp->propchild / hz,
665 		    memberp->ncall);
666 
667 		if (memberp->selfcalls != 0)
668 			(void) printf("+%-7lld", memberp->selfcalls);
669 		else
670 			(void) printf(" %7.7s", "");
671 
672 		(void) printf("     ");
673 		printname(memberp);
674 		if (Cflag)
675 			print_demangled_name(54, memberp);
676 		(void) printf("\n");
677 	}
678 }
679 
680 /*
681  * sort members of a cycle
682  */
683 void
684 sortmembers(nltype *cyclep)
685 {
686 	nltype	*todo;
687 	nltype	*doing;
688 	nltype	*prev;
689 
690 	/*
691 	 *	detach cycle members from cyclehead,
692 	 *	and insertion sort them back on.
693 	 */
694 	todo = cyclep->cnext;
695 	cyclep->cnext = 0;
696 
697 	/* LINTED: warning: assignment operator */
698 	for ((doing = todo) && (todo = doing->cnext);
699 	    doing;
700 	    /* LINTED: warning: assignment operator */
701 	    (doing = todo) && (todo = doing->cnext)) {
702 		for (prev = cyclep; prev->cnext; prev = prev->cnext) {
703 			if (membercmp(doing, prev->cnext) == GREATERTHAN)
704 				break;
705 		}
706 		doing->cnext = prev->cnext;
707 		prev->cnext = doing;
708 	}
709 }
710 
711 /*
712  *	major sort is on propself + propchild,
713  *	next is sort on ncalls + selfcalls.
714  */
715 int
716 membercmp(nltype *this, nltype *that)
717 {
718 	double	thistime = this->propself + this->propchild;
719 	double	thattime = that->propself + that->propchild;
720 	actype	thiscalls = this->ncall + this->selfcalls;
721 	actype	thatcalls = that->ncall + that->selfcalls;
722 
723 	if (thistime > thattime)
724 		return (GREATERTHAN);
725 
726 	if (thistime < thattime)
727 		return (LESSTHAN);
728 
729 	if (thiscalls > thatcalls)
730 		return (GREATERTHAN);
731 
732 	if (thiscalls < thatcalls)
733 		return (LESSTHAN);
734 
735 	return (EQUALTO);
736 }
737 
738 /*
739  *	compare two arcs to/from the same child/parent.
740  *	- if one arc is a self arc, it's least.
741  *	- if one arc is within a cycle, it's less than.
742  *	- if both arcs are within a cycle, compare arc counts.
743  *	- if neither arc is within a cycle, compare with
744  *		arc_time + arc_childtime as major key
745  *		arc count as minor key
746  */
747 int
748 arccmp(arctype *thisp, arctype *thatp)
749 {
750 	nltype	*thisparentp = thisp->arc_parentp;
751 	nltype	*thischildp = thisp->arc_childp;
752 	nltype	*thatparentp = thatp->arc_parentp;
753 	nltype	*thatchildp = thatp->arc_childp;
754 	double	thistime;
755 	double	thattime;
756 
757 #ifdef DEBUG
758 	if (debug & TIMEDEBUG) {
759 		(void) printf("[arccmp] ");
760 		printname(thisparentp);
761 		(void) printf(" calls ");
762 		printname(thischildp);
763 		(void) printf(" %f + %f %lld/%lld\n", thisp->arc_time,
764 		    thisp->arc_childtime, thisp->arc_count,
765 		    thischildp->ncall);
766 		(void) printf("[arccmp] ");
767 		printname(thatparentp);
768 		(void) printf(" calls ");
769 		printname(thatchildp);
770 		(void) printf(" %f + %f %lld/%lld\n", thatp->arc_time,
771 		    thatp->arc_childtime, thatp->arc_count,
772 		    thatchildp->ncall);
773 		(void) printf("\n");
774 	}
775 #endif /* DEBUG */
776 
777 	if (thisparentp == thischildp) {
778 		/*
779 		 * this is a self call
780 		 */
781 		return (LESSTHAN);
782 	}
783 
784 	if (thatparentp == thatchildp) {
785 		/*
786 		 * that is a self call
787 		 */
788 		return (GREATERTHAN);
789 	}
790 
791 	if (thisparentp->cycleno != 0 && thischildp->cycleno != 0 &&
792 	    thisparentp->cycleno == thischildp->cycleno) {
793 		/*
794 		 * this is a call within a cycle
795 		 */
796 		if (thatparentp->cycleno != 0 && thatchildp->cycleno != 0 &&
797 		    thatparentp->cycleno == thatchildp->cycleno) {
798 			/*
799 			 * that is a call within the cycle, too
800 			 */
801 			if (thisp->arc_count < thatp->arc_count)
802 				return (LESSTHAN);
803 
804 			if (thisp->arc_count > thatp->arc_count)
805 				return (GREATERTHAN);
806 
807 			return (EQUALTO);
808 		} else {
809 			/*
810 			 * that isn't a call within the cycle
811 			 */
812 			return (LESSTHAN);
813 		}
814 	} else {
815 		/*
816 		 * this isn't a call within a cycle
817 		 */
818 		if (thatparentp->cycleno != 0 && thatchildp->cycleno != 0 &&
819 		    thatparentp->cycleno == thatchildp->cycleno) {
820 			/*
821 			 * that is a call within a cycle
822 			 */
823 			return (GREATERTHAN);
824 		} else {
825 			/*
826 			 * neither is a call within a cycle
827 			 */
828 			thistime = thisp->arc_time + thisp->arc_childtime;
829 			thattime = thatp->arc_time + thatp->arc_childtime;
830 
831 			if (thistime < thattime)
832 				return (LESSTHAN);
833 
834 			if (thistime > thattime)
835 				return (GREATERTHAN);
836 
837 			if (thisp->arc_count < thatp->arc_count)
838 				return (LESSTHAN);
839 
840 			if (thisp->arc_count > thatp->arc_count)
841 				return (GREATERTHAN);
842 
843 			return (EQUALTO);
844 		}
845 	}
846 }
847 
848 void
849 printblurb(char *blurbname)
850 {
851 	FILE	*blurbfile;
852 	int	input;
853 
854 	blurbfile = fopen(blurbname, "r");
855 	if (blurbfile == NULL) {
856 		perror(blurbname);
857 		return;
858 	}
859 
860 	while ((input = getc(blurbfile)) != EOF)
861 		(void) putchar(input);
862 
863 	(void) fclose(blurbfile);
864 }
865 
866 char *s1, *s2;
867 
868 static int
869 namecmp(const void *arg1, const void *arg2)
870 {
871 	nltype **npp1 = (nltype **)arg1;
872 	nltype **npp2 = (nltype **)arg2;
873 
874 	if (!Cflag)
875 		return (strcmp((*npp1)->name, (*npp2)->name));
876 	else {
877 		striped_name(s1, npp1);
878 		striped_name(s2, npp2);
879 		return (strcmp(s1, s2));
880 	}
881 }
882 
883 void
884 striped_name(char *s, nltype **npp)
885 {
886 	char *d, *c;
887 
888 	c = (char *)s;
889 	d = demangled_name(*npp);
890 
891 	while ((*d != '(') && (*d != '\0')) {
892 		if (*d != ':')
893 			*c++ = *d++;
894 		else
895 			d++;
896 	}
897 	*c = '\0';
898 }
899 
900 /*
901  * Checks if the current symbol name is the same as its neighbour and
902  * returns TRUE if it is.
903  */
904 static bool
905 does_clash(nltype **nlp, int ndx, int nnames)
906 {
907 	/*
908 	 * same as previous (if there's one) ?
909 	 */
910 	if (ndx && (strcmp(nlp[ndx]->name, nlp[ndx-1]->name) == 0))
911 		return (TRUE);
912 
913 	/*
914 	 * same as next (if there's one) ?
915 	 */
916 	if ((ndx < (nnames - 1)) &&
917 	    (strcmp(nlp[ndx]->name, nlp[ndx+1]->name) == 0)) {
918 		return (TRUE);
919 	}
920 
921 	return (FALSE);
922 }
923 
924 void
925 printmodules()
926 {
927 	mod_info_t	*mi;
928 
929 	(void) printf("\f\nObject modules\n\n");
930 	for (mi = &modules; mi; mi = mi->next)
931 		(void) printf(" %d: %s\n", mi->id, mi->name);
932 }
933 
934 #define	IDFMT(id)	((id) < 10 ? 1 : 2)
935 #define	NMFMT(id)	((id) < 10 ? 17 : 16)
936 
937 void
938 printindex()
939 {
940 	nltype	**namesortnlp;
941 	nltype	*nlp;
942 	int	index, nnames, todo, i, j;
943 	char	peterbuffer[BUFSIZ];
944 	mod_info_t	*mi;
945 
946 	/*
947 	 *	Now, sort regular function name alphabetically
948 	 *	to create an index.
949 	 */
950 	namesortnlp = calloc(total_names + ncycle, sizeof (nltype *));
951 
952 	if (namesortnlp == NULL)
953 		(void) fprintf(stderr, "%s: ran out of memory for sorting\n",
954 		    whoami);
955 
956 	nnames = 0;
957 	for (mi = &modules; mi; mi = mi->next) {
958 		for (index = 0; index < mi->nname; index++) {
959 			if (zflag == 0 && (mi->nl[index]).ncall == 0 &&
960 			    (mi->nl[index]).time == 0) {
961 				continue;
962 			}
963 
964 			/*
965 			 * Do not print certain special symbols, like
966 			 * PRF_EXTSYM, etc. even if zflag was on.
967 			 */
968 			if (is_special_sym(&(mi->nl[index])))
969 				continue;
970 
971 			namesortnlp[nnames++] = &(mi->nl[index]);
972 		}
973 	}
974 
975 	if (Cflag) {
976 		s1 = malloc(500 * sizeof (char));
977 		s2 = malloc(500 * sizeof (char));
978 	}
979 
980 	qsort(namesortnlp, nnames, sizeof (nltype *), namecmp);
981 
982 	for (index = 1, todo = nnames; index <= ncycle; index++)
983 		namesortnlp[todo++] = &cyclenl[index];
984 
985 	(void) printf("\f\nIndex by function name\n\n");
986 
987 	if (!Cflag)
988 		index = (todo + 2) / 3;
989 	else
990 		index = todo;
991 
992 	for (i = 0; i < index; i++) {
993 		if (!Cflag) {
994 			for (j = i; j < todo; j += index) {
995 				nlp = namesortnlp[j];
996 
997 				if (nlp->printflag) {
998 					(void) sprintf(peterbuffer,
999 					    "[%d]", nlp->index);
1000 				} else {
1001 					(void) sprintf(peterbuffer,
1002 					    "(%d)", nlp->index);
1003 				}
1004 
1005 				if (j < nnames) {
1006 					if (does_clash(namesortnlp,
1007 					    j, nnames)) {
1008 						(void) printf(
1009 						    "%6.6s %*d:%-*.*s",
1010 						    peterbuffer,
1011 						    IDFMT(nlp->module->id),
1012 						    nlp->module->id,
1013 						    NMFMT(nlp->module->id),
1014 						    NMFMT(nlp->module->id),
1015 						    nlp->name);
1016 					} else {
1017 					(void) printf("%6.6s %-19.19s",
1018 					    peterbuffer, nlp->name);
1019 					}
1020 				} else {
1021 					(void) printf("%6.6s ", peterbuffer);
1022 					(void) sprintf(peterbuffer,
1023 					    "<cycle %d>", nlp->cycleno);
1024 					(void) printf("%-19.19s", peterbuffer);
1025 				}
1026 			}
1027 		} else {
1028 			nlp = namesortnlp[i];
1029 
1030 			if (nlp->printflag)
1031 				(void) sprintf(peterbuffer, "[%d]", nlp->index);
1032 			else
1033 				(void) sprintf(peterbuffer, "(%d)", nlp->index);
1034 
1035 			if (i < nnames) {
1036 				char *d = demangled_name(nlp);
1037 
1038 				if (does_clash(namesortnlp, i, nnames)) {
1039 					(void) printf("%6.6s %d:%s\n",
1040 					    peterbuffer, nlp->module->id, d);
1041 				} else
1042 					(void) printf("%6.6s %s\n", peterbuffer,
1043 					    d);
1044 
1045 				if (d != nlp->name)
1046 					(void) printf("%6.6s   [%s]", "",
1047 					    nlp->name);
1048 			} else {
1049 				(void) printf("%6.6s ", peterbuffer);
1050 				(void) sprintf(peterbuffer, "<cycle %d>",
1051 				    nlp->cycleno);
1052 				(void) printf("%-33.33s", peterbuffer);
1053 			}
1054 		}
1055 		(void) printf("\n");
1056 	}
1057 	free(namesortnlp);
1058 }
1059