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3d6c6501 SEF |
1 | /* |
2 | * Copyright (c) 1983 Regents of the University of California. | |
3 | * All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms are permitted | |
6 | * provided that: (1) source distributions retain this entire copyright | |
7 | * notice and comment, and (2) distributions including binaries display | |
8 | * the following acknowledgement: ``This product includes software | |
9 | * developed by the University of California, Berkeley and its contributors'' | |
10 | * in the documentation or other materials provided with the distribution | |
11 | * and in all advertising materials mentioning features or use of this | |
12 | * software. Neither the name of the University nor the names of its | |
13 | * contributors may be used to endorse or promote products derived | |
14 | * from this software without specific prior written permission. | |
15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
16 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
17 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
18 | */ | |
19 | ||
20 | #ifndef lint | |
21 | char copyright[] = | |
22 | "@(#) Copyright (c) 1983 Regents of the University of California.\n\ | |
23 | All rights reserved.\n"; | |
24 | #endif /* not lint */ | |
25 | ||
26 | #ifndef lint | |
27 | static char sccsid[] = "@(#)gprof.c 5.6 (Berkeley) 6/1/90"; | |
28 | #endif /* not lint */ | |
29 | ||
30 | #include "gprof.h" | |
31 | ||
77c9b2c3 SEF |
32 | bfd *abfd; |
33 | ||
3d6c6501 SEF |
34 | char *whoami = "gprof"; |
35 | ||
36 | /* | |
37 | * things which get -E excluded by default. | |
38 | */ | |
39 | char *defaultEs[] = { "mcount" , "__mcleanup" , 0 }; | |
40 | ||
dc1d1ca5 PB |
41 | int discard_underscores = 1; /* Should we discard initial underscores? */ |
42 | int bsd_style_output = 0; /* As opposed to FSF style output */ | |
43 | ||
3d6c6501 SEF |
44 | main(argc, argv) |
45 | int argc; | |
46 | char **argv; | |
47 | { | |
48 | char **sp; | |
49 | nltype **timesortnlp; | |
50 | ||
51 | --argc; | |
52 | argv++; | |
53 | debug = 0; | |
54 | bflag = TRUE; | |
55 | while ( *argv != 0 && **argv == '-' ) { | |
56 | (*argv)++; | |
57 | switch ( **argv ) { | |
58 | case 'a': | |
59 | aflag = TRUE; | |
60 | break; | |
61 | case 'b': | |
62 | bflag = FALSE; | |
63 | break; | |
64 | case 'c': | |
65 | cflag = TRUE; | |
66 | break; | |
67 | case 'd': | |
68 | dflag = TRUE; | |
69 | (*argv)++; | |
70 | debug |= atoi( *argv ); | |
71 | debug |= ANYDEBUG; | |
72 | # ifdef DEBUG | |
73 | printf("[main] debug = %d\n", debug); | |
74 | # else not DEBUG | |
75 | printf("%s: -d ignored\n", whoami); | |
76 | # endif DEBUG | |
77 | break; | |
78 | case 'E': | |
79 | ++argv; | |
80 | addlist( Elist , *argv ); | |
81 | Eflag = TRUE; | |
82 | addlist( elist , *argv ); | |
83 | eflag = TRUE; | |
84 | break; | |
85 | case 'e': | |
86 | addlist( elist , *++argv ); | |
87 | eflag = TRUE; | |
88 | break; | |
89 | case 'F': | |
90 | ++argv; | |
91 | addlist( Flist , *argv ); | |
92 | Fflag = TRUE; | |
93 | addlist( flist , *argv ); | |
94 | fflag = TRUE; | |
95 | break; | |
96 | case 'f': | |
97 | addlist( flist , *++argv ); | |
98 | fflag = TRUE; | |
99 | break; | |
100 | case 'k': | |
101 | addlist( kfromlist , *++argv ); | |
102 | addlist( ktolist , *++argv ); | |
103 | kflag = TRUE; | |
104 | break; | |
105 | case 's': | |
106 | sflag = TRUE; | |
107 | break; | |
dc1d1ca5 PB |
108 | case 'T': /* "Traditional" output format */ |
109 | bsd_style_output = 1; | |
110 | break; | |
3d6c6501 SEF |
111 | case 'z': |
112 | zflag = TRUE; | |
113 | break; | |
804c13bd | 114 | default: |
9d651373 | 115 | fprintf (stderr, "usage: gprof [-a] [-b] [-c] [-d[num]] \ |
804c13bd SEF |
116 | [-E function-name] [-e function-name] \ |
117 | [-F function-name] [-f function-name] \ | |
118 | [-k from to] [-s] [-T] [-z] [image-file] \ | |
6699a555 | 119 | [profile file(s)]\n"); |
804c13bd | 120 | exit (1); |
3d6c6501 SEF |
121 | } |
122 | argv++; | |
123 | } | |
124 | if ( *argv != 0 ) { | |
125 | a_outname = *argv; | |
126 | argv++; | |
127 | } else { | |
128 | a_outname = A_OUTNAME; | |
129 | } | |
130 | if ( *argv != 0 ) { | |
131 | gmonname = *argv; | |
132 | argv++; | |
133 | } else { | |
134 | gmonname = GMONNAME; | |
135 | } | |
136 | /* | |
137 | * turn off default functions | |
138 | */ | |
139 | for ( sp = &defaultEs[0] ; *sp ; sp++ ) { | |
140 | Eflag = TRUE; | |
141 | addlist( Elist , *sp ); | |
142 | eflag = TRUE; | |
143 | addlist( elist , *sp ); | |
144 | } | |
145 | /* | |
146 | * how many ticks per second? | |
147 | * if we can't tell, report time in ticks. | |
148 | */ | |
149 | hz = hertz(); | |
150 | if (hz == 0) { | |
151 | hz = 1; | |
152 | fprintf(stderr, "time is in ticks, not seconds\n"); | |
153 | } | |
154 | /* | |
155 | * get information about a.out file. | |
156 | */ | |
157 | getnfile(); | |
158 | /* | |
159 | * get information about mon.out file(s). | |
160 | */ | |
161 | do { | |
162 | getpfile( gmonname ); | |
163 | if ( *argv != 0 ) { | |
164 | gmonname = *argv; | |
165 | } | |
166 | } while ( *argv++ != 0 ); | |
167 | /* | |
168 | * dump out a gmon.sum file if requested | |
169 | */ | |
170 | if ( sflag ) { | |
171 | dumpsum( GMONSUM ); | |
172 | } | |
173 | /* | |
174 | * assign samples to procedures | |
175 | */ | |
176 | asgnsamples(); | |
177 | /* | |
178 | * assemble the dynamic profile | |
179 | */ | |
180 | timesortnlp = doarcs(); | |
dc1d1ca5 PB |
181 | |
182 | if (bsd_style_output) { | |
183 | printgprof( timesortnlp ); /* print the dynamic profile */ | |
184 | printprof(); /* print the flat profile */ | |
185 | } else { | |
186 | printprof(); /* print the flat profile */ | |
187 | printgprof( timesortnlp ); /* print the dynamic profile */ | |
188 | } | |
3d6c6501 SEF |
189 | /* |
190 | * print the index | |
191 | */ | |
192 | printindex(); | |
193 | done(); | |
194 | } | |
195 | ||
196 | /* | |
197 | * Set up string and symbol tables from a.out. | |
198 | * and optionally the text space. | |
199 | * On return symbol table is sorted by value. | |
200 | */ | |
201 | getnfile() | |
202 | { | |
811e3c6a | 203 | int valcmp(); |
3d6c6501 | 204 | |
811e3c6a | 205 | abfd = bfd_openr (a_outname, NULL); |
3d6c6501 | 206 | |
811e3c6a SEF |
207 | if (abfd == NULL) { |
208 | perror (a_outname); | |
209 | done(); | |
210 | } | |
211 | ||
212 | if (!bfd_check_format (abfd, bfd_object)) { | |
213 | fprintf (stderr, "%s: %s: bad format\n", whoami, a_outname); | |
214 | done(); | |
215 | } | |
216 | ||
217 | /* getstrtab(nfile); */ | |
218 | getsymtab(abfd); | |
219 | gettextspace( abfd ); | |
220 | qsort(nl, nname, sizeof(nltype), valcmp); | |
221 | ||
222 | # ifdef DEBUG | |
223 | if ( debug & AOUTDEBUG ) { | |
224 | register int j; | |
225 | ||
226 | for (j = 0; j < nname; j++){ | |
227 | printf("[getnfile] 0X%08x\t%s\n", nl[j].value, nl[j].name); | |
228 | } | |
229 | } | |
3d6c6501 SEF |
230 | # endif DEBUG |
231 | } | |
232 | ||
77c9b2c3 SEF |
233 | /* |
234 | * Read in symbol table | |
235 | */ | |
811e3c6a SEF |
236 | getsymtab(abfd) |
237 | bfd *abfd; | |
3d6c6501 SEF |
238 | { |
239 | register long i; | |
240 | int askfor; | |
811e3c6a SEF |
241 | int nosyms; |
242 | asymbol **syms; | |
243 | i = get_symtab_upper_bound (abfd); /* This will probably give us more | |
244 | * than we need, but that's ok. | |
245 | */ | |
dc1d1ca5 | 246 | syms = (asymbol**)xmalloc (i); |
811e3c6a | 247 | nosyms = bfd_canonicalize_symtab (abfd, syms); |
3d6c6501 | 248 | |
3d6c6501 | 249 | nname = 0; |
811e3c6a SEF |
250 | for (i = 0; i < nosyms; i++) { |
251 | if (!funcsymbol (syms[i])) | |
252 | continue; | |
253 | nname++; | |
3d6c6501 | 254 | } |
811e3c6a | 255 | |
3d6c6501 | 256 | if (nname == 0) { |
811e3c6a SEF |
257 | fprintf(stderr, "%s: %s: no symbols\n", whoami , a_outname ); |
258 | done(); | |
3d6c6501 SEF |
259 | } |
260 | askfor = nname + 1; | |
261 | nl = (nltype *) calloc( askfor , sizeof(nltype) ); | |
262 | if (nl == 0) { | |
263 | fprintf(stderr, "%s: No room for %d bytes of symbol table\n", | |
264 | whoami, askfor * sizeof(nltype) ); | |
265 | done(); | |
266 | } | |
267 | ||
268 | /* pass2 - read symbols */ | |
3d6c6501 SEF |
269 | npe = nl; |
270 | nname = 0; | |
811e3c6a SEF |
271 | for (i = 0; i < nosyms; i++) { |
272 | if (!funcsymbol (syms[i])) { | |
3d6c6501 | 273 | # ifdef DEBUG |
811e3c6a SEF |
274 | if ( debug & AOUTDEBUG ) { |
275 | printf( "[getsymtab] rejecting: 0x%x %s\n" , | |
276 | syms[i]->value, syms[i]->name); | |
3d6c6501 | 277 | } |
811e3c6a SEF |
278 | # endif DEBUG |
279 | continue; | |
280 | } | |
dc1d1ca5 | 281 | /* Symbol offsets are always section-relative. */ |
811e3c6a SEF |
282 | npe->value = syms[i]->value + syms[i]->section->vma; |
283 | npe->name = syms[i]->name; | |
dc1d1ca5 PB |
284 | |
285 | /* If we see "main" without an initial '_', we assume | |
286 | names are *not* prefixed by '_'. */ | |
287 | if (npe->name[0] == 'm' && discard_underscores | |
288 | && strcmp(npe->name, "main") == 0) | |
289 | discard_underscores = 0; | |
290 | ||
3d6c6501 | 291 | # ifdef DEBUG |
811e3c6a SEF |
292 | if ( debug & AOUTDEBUG ) { |
293 | printf( "[getsymtab] %d %s 0x%08x\n" , | |
294 | nname , npe -> name , npe -> value ); | |
295 | } | |
3d6c6501 | 296 | # endif DEBUG |
811e3c6a SEF |
297 | npe++; |
298 | nname++; | |
3d6c6501 SEF |
299 | } |
300 | npe->value = -1; | |
301 | } | |
302 | ||
811e3c6a SEF |
303 | /* |
304 | * read in the text space of an a.out file | |
305 | */ | |
306 | gettextspace( abfd ) | |
307 | bfd *abfd; | |
3d6c6501 | 308 | { |
811e3c6a | 309 | asection *texsec; |
3d6c6501 | 310 | |
811e3c6a SEF |
311 | if ( cflag == 0 ) { |
312 | return; | |
313 | } | |
314 | ||
315 | texsec = bfd_get_section_by_name (abfd, ".text"); | |
316 | if (texsec == NULL) { | |
317 | return; | |
318 | } | |
319 | ||
a11d7ba3 | 320 | textspace = (u_char *) malloc( texsec->_cooked_size ); |
811e3c6a SEF |
321 | |
322 | if ( textspace == 0 ) { | |
323 | fprintf( stderr , "%s: ran out room for %d bytes of text space: " , | |
a11d7ba3 | 324 | whoami , texsec->_cooked_size); |
811e3c6a SEF |
325 | fprintf( stderr , "can't do -c\n" ); |
326 | return; | |
327 | } | |
328 | bfd_get_section_contents (abfd, texsec, textspace, texsec->filepos, | |
a11d7ba3 | 329 | texsec->_cooked_size); |
3d6c6501 | 330 | } |
811e3c6a SEF |
331 | /* |
332 | * information from a gmon.out file is in two parts: | |
333 | * an array of sampling hits within pc ranges, | |
334 | * and the arcs. | |
335 | */ | |
3d6c6501 SEF |
336 | getpfile(filename) |
337 | char *filename; | |
338 | { | |
339 | FILE *pfile; | |
340 | FILE *openpfile(); | |
341 | struct rawarc arc; | |
73fbbeea | 342 | struct veryrawarc rawarc; |
3d6c6501 SEF |
343 | |
344 | pfile = openpfile(filename); | |
345 | readsamples(pfile); | |
346 | /* | |
347 | * the rest of the file consists of | |
348 | * a bunch of <from,self,count> tuples. | |
349 | */ | |
73fbbeea SC |
350 | while ( fread( &rawarc , sizeof rawarc , 1 , pfile ) == 1 ) { |
351 | arc.raw_frompc = bfd_get_32 (abfd, (bfd_byte *) rawarc.raw_frompc); | |
352 | arc.raw_selfpc = bfd_get_32 (abfd, (bfd_byte *) rawarc.raw_selfpc); | |
353 | arc.raw_count = bfd_get_32 (abfd, (bfd_byte *) rawarc.raw_count); | |
3d6c6501 SEF |
354 | # ifdef DEBUG |
355 | if ( debug & SAMPLEDEBUG ) { | |
356 | printf( "[getpfile] frompc 0x%x selfpc 0x%x count %d\n" , | |
357 | arc.raw_frompc , arc.raw_selfpc , arc.raw_count ); | |
358 | } | |
359 | # endif DEBUG | |
360 | /* | |
361 | * add this arc | |
362 | */ | |
363 | tally( &arc ); | |
364 | } | |
365 | fclose(pfile); | |
366 | } | |
367 | ||
368 | FILE * | |
369 | openpfile(filename) | |
370 | char *filename; | |
371 | { | |
372 | struct hdr tmp; | |
73fbbeea | 373 | struct rawhdr raw; |
3d6c6501 SEF |
374 | FILE *pfile; |
375 | ||
376 | if((pfile = fopen(filename, "r")) == NULL) { | |
377 | perror(filename); | |
378 | done(); | |
379 | } | |
73fbbeea SC |
380 | if (sizeof(struct rawhdr) != fread(&raw, 1, sizeof(struct rawhdr), pfile)) |
381 | { | |
382 | fprintf(stderr, "%s: file too short to be a gmon file\n", filename); | |
383 | done(); | |
384 | } | |
385 | tmp.lowpc = (UNIT *)bfd_get_32 (abfd, (bfd_byte *) &raw.lowpc[0]); | |
386 | tmp.highpc = (UNIT *)bfd_get_32 (abfd, (bfd_byte *) &raw.highpc[0]); | |
387 | tmp.ncnt = bfd_get_32 (abfd, (bfd_byte *) &raw.ncnt[0]); | |
77c9b2c3 | 388 | |
3d6c6501 SEF |
389 | if ( s_highpc != 0 && ( tmp.lowpc != h.lowpc || |
390 | tmp.highpc != h.highpc || tmp.ncnt != h.ncnt ) ) { | |
391 | fprintf(stderr, "%s: incompatible with first gmon file\n", filename); | |
392 | done(); | |
393 | } | |
394 | h = tmp; | |
395 | s_lowpc = (unsigned long) h.lowpc; | |
396 | s_highpc = (unsigned long) h.highpc; | |
397 | lowpc = (unsigned long)h.lowpc / sizeof(UNIT); | |
398 | highpc = (unsigned long)h.highpc / sizeof(UNIT); | |
73fbbeea | 399 | sampbytes = h.ncnt - sizeof(struct rawhdr); |
3d6c6501 SEF |
400 | nsamples = sampbytes / sizeof (UNIT); |
401 | # ifdef DEBUG | |
402 | if ( debug & SAMPLEDEBUG ) { | |
403 | printf( "[openpfile] hdr.lowpc 0x%x hdr.highpc 0x%x hdr.ncnt %d\n", | |
404 | h.lowpc , h.highpc , h.ncnt ); | |
405 | printf( "[openpfile] s_lowpc 0x%x s_highpc 0x%x\n" , | |
406 | s_lowpc , s_highpc ); | |
407 | printf( "[openpfile] lowpc 0x%x highpc 0x%x\n" , | |
408 | lowpc , highpc ); | |
409 | printf( "[openpfile] sampbytes %d nsamples %d\n" , | |
410 | sampbytes , nsamples ); | |
411 | } | |
412 | # endif DEBUG | |
413 | return(pfile); | |
414 | } | |
415 | ||
416 | tally( rawp ) | |
417 | struct rawarc *rawp; | |
418 | { | |
419 | nltype *parentp; | |
420 | nltype *childp; | |
421 | ||
422 | parentp = nllookup( rawp -> raw_frompc ); | |
423 | childp = nllookup( rawp -> raw_selfpc ); | |
424 | if ( kflag | |
425 | && onlist( kfromlist , parentp -> name ) | |
426 | && onlist( ktolist , childp -> name ) ) { | |
427 | return; | |
428 | } | |
429 | childp -> ncall += rawp -> raw_count; | |
430 | # ifdef DEBUG | |
431 | if ( debug & TALLYDEBUG ) { | |
432 | printf( "[tally] arc from %s to %s traversed %d times\n" , | |
433 | parentp -> name , childp -> name , rawp -> raw_count ); | |
434 | } | |
435 | # endif DEBUG | |
436 | addarc( parentp , childp , rawp -> raw_count ); | |
437 | } | |
438 | ||
439 | /* | |
440 | * dump out the gmon.sum file | |
441 | */ | |
442 | dumpsum( sumfile ) | |
443 | char *sumfile; | |
444 | { | |
445 | register nltype *nlp; | |
446 | register arctype *arcp; | |
447 | struct rawarc arc; | |
448 | FILE *sfile; | |
449 | ||
450 | if ( ( sfile = fopen ( sumfile , "w" ) ) == NULL ) { | |
451 | perror( sumfile ); | |
452 | done(); | |
453 | } | |
454 | /* | |
455 | * dump the header; use the last header read in | |
456 | */ | |
457 | if ( fwrite( &h , sizeof h , 1 , sfile ) != 1 ) { | |
458 | perror( sumfile ); | |
459 | done(); | |
460 | } | |
461 | /* | |
462 | * dump the samples | |
463 | */ | |
464 | if (fwrite(samples, sizeof (UNIT), nsamples, sfile) != nsamples) { | |
465 | perror( sumfile ); | |
466 | done(); | |
467 | } | |
468 | /* | |
469 | * dump the normalized raw arc information | |
470 | */ | |
471 | for ( nlp = nl ; nlp < npe ; nlp++ ) { | |
472 | for ( arcp = nlp -> children ; arcp ; arcp = arcp -> arc_childlist ) { | |
473 | arc.raw_frompc = arcp -> arc_parentp -> value; | |
474 | arc.raw_selfpc = arcp -> arc_childp -> value; | |
475 | arc.raw_count = arcp -> arc_count; | |
476 | if ( fwrite ( &arc , sizeof arc , 1 , sfile ) != 1 ) { | |
477 | perror( sumfile ); | |
478 | done(); | |
479 | } | |
480 | # ifdef DEBUG | |
481 | if ( debug & SAMPLEDEBUG ) { | |
482 | printf( "[dumpsum] frompc 0x%x selfpc 0x%x count %d\n" , | |
483 | arc.raw_frompc , arc.raw_selfpc , arc.raw_count ); | |
484 | } | |
485 | # endif DEBUG | |
486 | } | |
487 | } | |
488 | fclose( sfile ); | |
489 | } | |
490 | ||
491 | valcmp(p1, p2) | |
492 | nltype *p1, *p2; | |
493 | { | |
494 | if ( p1 -> value < p2 -> value ) { | |
495 | return LESSTHAN; | |
496 | } | |
497 | if ( p1 -> value > p2 -> value ) { | |
498 | return GREATERTHAN; | |
499 | } | |
500 | return EQUALTO; | |
501 | } | |
502 | ||
503 | readsamples(pfile) | |
504 | FILE *pfile; | |
505 | { | |
73fbbeea SC |
506 | register i; |
507 | ||
3d6c6501 | 508 | |
73fbbeea SC |
509 | if (samples == 0) { |
510 | samples = (int *) calloc (nsamples, sizeof(int)); | |
3d6c6501 | 511 | if (samples == 0) { |
73fbbeea SC |
512 | fprintf( stderr , "%s: No room for %d sample pc's\n", |
513 | whoami , nsamples); | |
514 | done(); | |
3d6c6501 | 515 | } |
73fbbeea SC |
516 | } |
517 | for (i = 0; i < nsamples; i++) { | |
518 | UNIT raw; | |
519 | int value; | |
520 | ||
521 | fread(raw, sizeof (raw), 1, pfile); | |
522 | value = bfd_get_16 (abfd, (bfd_byte *) raw); | |
523 | if (feof(pfile)) | |
524 | break; | |
525 | samples[i] += value; | |
526 | } | |
527 | if (i != nsamples) { | |
528 | fprintf(stderr, | |
3d6c6501 | 529 | "%s: unexpected EOF after reading %d/%d samples\n", |
73fbbeea SC |
530 | whoami , --i , nsamples ); |
531 | done(); | |
532 | } | |
3d6c6501 SEF |
533 | } |
534 | ||
535 | /* | |
536 | * Assign samples to the procedures to which they belong. | |
537 | * | |
538 | * There are three cases as to where pcl and pch can be | |
539 | * with respect to the routine entry addresses svalue0 and svalue1 | |
540 | * as shown in the following diagram. overlap computes the | |
541 | * distance between the arrows, the fraction of the sample | |
542 | * that is to be credited to the routine which starts at svalue0. | |
543 | * | |
544 | * svalue0 svalue1 | |
545 | * | | | |
546 | * v v | |
547 | * | |
548 | * +-----------------------------------------------+ | |
549 | * | | | |
550 | * | ->| |<- ->| |<- ->| |<- | | |
551 | * | | | | | | | |
552 | * +---------+ +---------+ +---------+ | |
553 | * | |
554 | * ^ ^ ^ ^ ^ ^ | |
555 | * | | | | | | | |
556 | * pcl pch pcl pch pcl pch | |
557 | * | |
558 | * For the vax we assert that samples will never fall in the first | |
559 | * two bytes of any routine, since that is the entry mask, | |
560 | * thus we give call alignentries() to adjust the entry points if | |
561 | * the entry mask falls in one bucket but the code for the routine | |
562 | * doesn't start until the next bucket. In conjunction with the | |
563 | * alignment of routine addresses, this should allow us to have | |
564 | * only one sample for every four bytes of text space and never | |
565 | * have any overlap (the two end cases, above). | |
566 | */ | |
567 | asgnsamples() | |
568 | { | |
569 | register int j; | |
73fbbeea | 570 | int ccnt; |
3d6c6501 SEF |
571 | double time; |
572 | unsigned long pcl, pch; | |
573 | register int i; | |
574 | unsigned long overlap; | |
575 | unsigned long svalue0, svalue1; | |
576 | ||
577 | /* read samples and assign to namelist symbols */ | |
578 | scale = highpc - lowpc; | |
579 | scale /= nsamples; | |
580 | alignentries(); | |
581 | for (i = 0, j = 1; i < nsamples; i++) { | |
582 | ccnt = samples[i]; | |
583 | if (ccnt == 0) | |
584 | continue; | |
585 | pcl = lowpc + scale * i; | |
586 | pch = lowpc + scale * (i + 1); | |
587 | time = ccnt; | |
588 | # ifdef DEBUG | |
589 | if ( debug & SAMPLEDEBUG ) { | |
590 | printf( "[asgnsamples] pcl 0x%x pch 0x%x ccnt %d\n" , | |
591 | pcl , pch , ccnt ); | |
592 | } | |
593 | # endif DEBUG | |
594 | totime += time; | |
595 | for (j = j - 1; j < nname; j++) { | |
596 | svalue0 = nl[j].svalue; | |
597 | svalue1 = nl[j+1].svalue; | |
598 | /* | |
599 | * if high end of tick is below entry address, | |
600 | * go for next tick. | |
601 | */ | |
602 | if (pch < svalue0) | |
603 | break; | |
604 | /* | |
605 | * if low end of tick into next routine, | |
606 | * go for next routine. | |
607 | */ | |
608 | if (pcl >= svalue1) | |
609 | continue; | |
610 | overlap = min(pch, svalue1) - max(pcl, svalue0); | |
611 | if (overlap > 0) { | |
612 | # ifdef DEBUG | |
613 | if (debug & SAMPLEDEBUG) { | |
614 | printf("[asgnsamples] (0x%x->0x%x-0x%x) %s gets %f ticks %d overlap\n", | |
615 | nl[j].value/sizeof(UNIT), svalue0, svalue1, | |
616 | nl[j].name, | |
617 | overlap * time / scale, overlap); | |
618 | } | |
619 | # endif DEBUG | |
620 | nl[j].time += overlap * time / scale; | |
621 | } | |
622 | } | |
623 | } | |
624 | # ifdef DEBUG | |
625 | if (debug & SAMPLEDEBUG) { | |
626 | printf("[asgnsamples] totime %f\n", totime); | |
627 | } | |
628 | # endif DEBUG | |
629 | } | |
630 | ||
631 | ||
632 | unsigned long | |
633 | min(a, b) | |
634 | unsigned long a,b; | |
635 | { | |
636 | if (a<b) | |
637 | return(a); | |
638 | return(b); | |
639 | } | |
640 | ||
641 | unsigned long | |
642 | max(a, b) | |
643 | unsigned long a,b; | |
644 | { | |
645 | if (a>b) | |
646 | return(a); | |
647 | return(b); | |
648 | } | |
649 | ||
650 | /* | |
651 | * calculate scaled entry point addresses (to save time in asgnsamples), | |
652 | * and possibly push the scaled entry points over the entry mask, | |
653 | * if it turns out that the entry point is in one bucket and the code | |
654 | * for a routine is in the next bucket. | |
655 | */ | |
656 | alignentries() | |
657 | { | |
658 | register struct nl *nlp; | |
659 | unsigned long bucket_of_entry; | |
660 | unsigned long bucket_of_code; | |
661 | ||
662 | for (nlp = nl; nlp < npe; nlp++) { | |
663 | nlp -> svalue = nlp -> value / sizeof(UNIT); | |
664 | bucket_of_entry = (nlp->svalue - lowpc) / scale; | |
665 | bucket_of_code = (nlp->svalue + UNITS_TO_CODE - lowpc) / scale; | |
666 | if (bucket_of_entry < bucket_of_code) { | |
667 | # ifdef DEBUG | |
668 | if (debug & SAMPLEDEBUG) { | |
669 | printf("[alignentries] pushing svalue 0x%x to 0x%x\n", | |
670 | nlp->svalue, nlp->svalue + UNITS_TO_CODE); | |
671 | } | |
672 | # endif DEBUG | |
673 | nlp->svalue += UNITS_TO_CODE; | |
674 | } | |
675 | } | |
676 | } | |
677 | ||
678 | bool | |
811e3c6a SEF |
679 | funcsymbol( symp ) |
680 | asymbol *symp; | |
3d6c6501 | 681 | { |
811e3c6a SEF |
682 | extern char *strtab; /* string table from a.out */ |
683 | extern int aflag; /* if static functions aren't desired */ | |
028fe636 | 684 | CONST char *name; |
77c9b2c3 SEF |
685 | int i; |
686 | ||
811e3c6a SEF |
687 | /* |
688 | * must be a text symbol, | |
689 | * and static text symbols don't qualify if aflag set. | |
690 | */ | |
691 | ||
77c9b2c3 | 692 | |
811e3c6a SEF |
693 | if (!symp->section) |
694 | return FALSE; | |
695 | ||
33023c9c | 696 | if (aflag && (symp->flags&BSF_LOCAL)) { |
77c9b2c3 | 697 | #if defined(DEBUG) |
811e3c6a SEF |
698 | fprintf (stderr, "%s(%d): %s: not a function\n", __FILE__, __LINE__, symp->name); |
699 | #endif | |
700 | return FALSE; | |
701 | } | |
811e3c6a SEF |
702 | /* |
703 | * can't have any `funny' characters in name, | |
704 | * where `funny' includes `.', .o file names | |
705 | * and `$', pascal labels. | |
706 | */ | |
5f630bb0 SEF |
707 | if (!symp->name) |
708 | return FALSE; | |
709 | ||
811e3c6a SEF |
710 | for (name = symp->name; *name; name++) { |
711 | if ( *name == '.' || *name == '$' ) { | |
712 | return FALSE; | |
713 | } | |
714 | } | |
77c9b2c3 SEF |
715 | |
716 | i = bfd_decode_symclass (symp); | |
717 | #if defined(DEBUG) && 0 | |
718 | if (i != 'T' && i != 't') | |
719 | fprintf (stderr, "%s(%d): %s is of class %c\n", __FILE__, __LINE__, symp->name, i); | |
720 | #endif | |
721 | ||
722 | return (i == 'T' || i == 't'); | |
3d6c6501 SEF |
723 | } |
724 | ||
725 | done() | |
726 | { | |
727 | ||
728 | exit(0); | |
729 | } |