source: trunk/binutils/gprof/gprof.c@ 2630

Last change on this file since 2630 was 610, checked in by bird, 22 years ago

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Line 
1/*
2 * Copyright (c) 1983, 1993, 1998, 2001, 2002
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include "libiberty.h"
31#include "gprof.h"
32#include "search_list.h"
33#include "source.h"
34#include "symtab.h"
35#include "basic_blocks.h"
36#include "call_graph.h"
37#include "cg_arcs.h"
38#include "cg_print.h"
39#include "corefile.h"
40#include "gmon_io.h"
41#include "hertz.h"
42#include "hist.h"
43#include "sym_ids.h"
44#include "demangle.h"
45#include "getopt.h"
46
47static void usage PARAMS ((FILE *, int)) ATTRIBUTE_NORETURN;
48int main PARAMS ((int, char **));
49
50const char *whoami;
51const char *function_mapping_file;
52const char *a_out_name = A_OUTNAME;
53long hz = HZ_WRONG;
54
55/*
56 * Default options values:
57 */
58int debug_level = 0;
59int output_style = 0;
60int output_width = 80;
61bfd_boolean bsd_style_output = FALSE;
62bfd_boolean demangle = TRUE;
63bfd_boolean discard_underscores = TRUE;
64bfd_boolean ignore_direct_calls = FALSE;
65bfd_boolean ignore_static_funcs = FALSE;
66bfd_boolean ignore_zeros = TRUE;
67bfd_boolean line_granularity = FALSE;
68bfd_boolean print_descriptions = TRUE;
69bfd_boolean print_path = FALSE;
70bfd_boolean ignore_non_functions = FALSE;
71File_Format file_format = FF_AUTO;
72
73bfd_boolean first_output = TRUE;
74
75char copyright[] =
76 "@(#) Copyright (c) 1983 Regents of the University of California.\n\
77 All rights reserved.\n";
78
79static char *gmon_name = GMONNAME; /* profile filename */
80
81bfd *abfd;
82
83/*
84 * Functions that get excluded by default:
85 */
86static char *default_excluded_list[] =
87{
88 "_gprof_mcount", "mcount", "_mcount", "__mcount", "__mcount_internal",
89 "__mcleanup",
90 "<locore>", "<hicore>",
91 0
92};
93
94/* Codes used for the long options with no short synonyms. 150 isn't
95 special; it's just an arbitrary non-ASCII char value. */
96
97#define OPTION_DEMANGLE (150)
98#define OPTION_NO_DEMANGLE (OPTION_DEMANGLE + 1)
99
100static struct option long_options[] =
101{
102 {"line", no_argument, 0, 'l'},
103 {"no-static", no_argument, 0, 'a'},
104 {"ignore-non-functions", no_argument, 0, 'D'},
105
106 /* output styles: */
107
108 {"annotated-source", optional_argument, 0, 'A'},
109 {"no-annotated-source", optional_argument, 0, 'J'},
110 {"flat-profile", optional_argument, 0, 'p'},
111 {"no-flat-profile", optional_argument, 0, 'P'},
112 {"graph", optional_argument, 0, 'q'},
113 {"no-graph", optional_argument, 0, 'Q'},
114 {"exec-counts", optional_argument, 0, 'C'},
115 {"no-exec-counts", optional_argument, 0, 'Z'},
116 {"function-ordering", no_argument, 0, 'r'},
117 {"file-ordering", required_argument, 0, 'R'},
118 {"file-info", no_argument, 0, 'i'},
119 {"sum", no_argument, 0, 's'},
120
121 /* various options to affect output: */
122
123 {"all-lines", no_argument, 0, 'x'},
124 {"demangle", optional_argument, 0, OPTION_DEMANGLE},
125 {"no-demangle", no_argument, 0, OPTION_NO_DEMANGLE},
126 {"directory-path", required_argument, 0, 'I'},
127 {"display-unused-functions", no_argument, 0, 'z'},
128 {"min-count", required_argument, 0, 'm'},
129 {"print-path", no_argument, 0, 'L'},
130 {"separate-files", no_argument, 0, 'y'},
131 {"static-call-graph", no_argument, 0, 'c'},
132 {"table-length", required_argument, 0, 't'},
133 {"time", required_argument, 0, 'n'},
134 {"no-time", required_argument, 0, 'N'},
135 {"width", required_argument, 0, 'w'},
136 /*
137 * These are for backwards-compatibility only. Their functionality
138 * is provided by the output style options already:
139 */
140 {"", required_argument, 0, 'e'},
141 {"", required_argument, 0, 'E'},
142 {"", required_argument, 0, 'f'},
143 {"", required_argument, 0, 'F'},
144 {"", required_argument, 0, 'k'},
145
146 /* miscellaneous: */
147
148 {"brief", no_argument, 0, 'b'},
149 {"debug", optional_argument, 0, 'd'},
150 {"help", no_argument, 0, 'h'},
151 {"file-format", required_argument, 0, 'O'},
152 {"traditional", no_argument, 0, 'T'},
153 {"version", no_argument, 0, 'v'},
154 {0, no_argument, 0, 0}
155};
156
157
158static void
159usage (stream, status)
160 FILE *stream;
161 int status;
162{
163 fprintf (stream, _("\
164Usage: %s [-[abcDhilLsTvwxyz]] [-[ACeEfFJnNOpPqQZ][name]] [-I dirs]\n\
165 [-d[num]] [-k from/to] [-m min-count] [-t table-length]\n\
166 [--[no-]annotated-source[=name]] [--[no-]exec-counts[=name]]\n\
167 [--[no-]flat-profile[=name]] [--[no-]graph[=name]]\n\
168 [--[no-]time=name] [--all-lines] [--brief] [--debug[=level]]\n\
169 [--function-ordering] [--file-ordering]\n\
170 [--directory-path=dirs] [--display-unused-functions]\n\
171 [--file-format=name] [--file-info] [--help] [--line] [--min-count=n]\n\
172 [--no-static] [--print-path] [--separate-files]\n\
173 [--static-call-graph] [--sum] [--table-length=len] [--traditional]\n\
174 [--version] [--width=n] [--ignore-non-functions]\n\
175 [--demangle[=STYLE]] [--no-demangle]\n\
176 [image-file] [profile-file...]\n"),
177 whoami);
178 if (status == 0)
179 fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
180 done (status);
181}
182
183
184int
185main (argc, argv)
186 int argc;
187 char **argv;
188{
189 char **sp, *str;
190 Sym **cg = 0;
191 int ch, user_specified = 0;
192
193#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
194 setlocale (LC_MESSAGES, "");
195#endif
196#if defined (HAVE_SETLOCALE)
197 setlocale (LC_CTYPE, "");
198#endif
199 bindtextdomain (PACKAGE, LOCALEDIR);
200 textdomain (PACKAGE);
201
202 whoami = argv[0];
203 xmalloc_set_program_name (whoami);
204
205 while ((ch = getopt_long (argc, argv,
206 "aA::bBcCd::De:E:f:F:hiI:J::k:lLm:n::N::O:p::P::q::Q::st:Tvw:xyzZ::",
207 long_options, 0))
208 != EOF)
209 {
210 switch (ch)
211 {
212 case 'a':
213 ignore_static_funcs = TRUE;
214 break;
215 case 'A':
216 if (optarg)
217 {
218 sym_id_add (optarg, INCL_ANNO);
219 }
220 output_style |= STYLE_ANNOTATED_SOURCE;
221 user_specified |= STYLE_ANNOTATED_SOURCE;
222 break;
223 case 'b':
224 print_descriptions = FALSE;
225 break;
226 case 'B':
227 output_style |= STYLE_CALL_GRAPH;
228 user_specified |= STYLE_CALL_GRAPH;
229 break;
230 case 'c':
231 ignore_direct_calls = TRUE;
232 break;
233 case 'C':
234 if (optarg)
235 {
236 sym_id_add (optarg, INCL_EXEC);
237 }
238 output_style |= STYLE_EXEC_COUNTS;
239 user_specified |= STYLE_EXEC_COUNTS;
240 break;
241 case 'd':
242 if (optarg)
243 {
244 debug_level |= atoi (optarg);
245 debug_level |= ANYDEBUG;
246 }
247 else
248 {
249 debug_level = ~0;
250 }
251 DBG (ANYDEBUG, printf ("[main] debug-level=0x%x\n", debug_level));
252#ifndef DEBUG
253 printf (_("%s: debugging not supported; -d ignored\n"), whoami);
254#endif /* DEBUG */
255 break;
256 case 'D':
257 ignore_non_functions = TRUE;
258 break;
259 case 'E':
260 sym_id_add (optarg, EXCL_TIME);
261 case 'e':
262 sym_id_add (optarg, EXCL_GRAPH);
263 break;
264 case 'F':
265 sym_id_add (optarg, INCL_TIME);
266 case 'f':
267 sym_id_add (optarg, INCL_GRAPH);
268 break;
269 case 'g':
270 sym_id_add (optarg, EXCL_FLAT);
271 break;
272 case 'G':
273 sym_id_add (optarg, INCL_FLAT);
274 break;
275 case 'h':
276 usage (stdout, 0);
277 case 'i':
278 output_style |= STYLE_GMON_INFO;
279 user_specified |= STYLE_GMON_INFO;
280 break;
281 case 'I':
282 search_list_append (&src_search_list, optarg);
283 break;
284 case 'J':
285 if (optarg)
286 {
287 sym_id_add (optarg, EXCL_ANNO);
288 output_style |= STYLE_ANNOTATED_SOURCE;
289 }
290 else
291 {
292 output_style &= ~STYLE_ANNOTATED_SOURCE;
293 }
294 user_specified |= STYLE_ANNOTATED_SOURCE;
295 break;
296 case 'k':
297 sym_id_add (optarg, EXCL_ARCS);
298 break;
299 case 'l':
300 line_granularity = TRUE;
301 break;
302 case 'L':
303 print_path = TRUE;
304 break;
305 case 'm':
306 bb_min_calls = (unsigned long) strtoul (optarg, (char **) NULL, 10);
307 break;
308 case 'n':
309 sym_id_add (optarg, INCL_TIME);
310 break;
311 case 'N':
312 sym_id_add (optarg, EXCL_TIME);
313 break;
314 case 'O':
315 switch (optarg[0])
316 {
317 case 'a':
318 file_format = FF_AUTO;
319 break;
320 case 'm':
321 file_format = FF_MAGIC;
322 break;
323 case 'b':
324 file_format = FF_BSD;
325 break;
326 case '4':
327 file_format = FF_BSD44;
328 break;
329 case 'p':
330 file_format = FF_PROF;
331 break;
332 default:
333 fprintf (stderr, _("%s: unknown file format %s\n"),
334 optarg, whoami);
335 done (1);
336 }
337 break;
338 case 'p':
339 if (optarg)
340 {
341 sym_id_add (optarg, INCL_FLAT);
342 }
343 output_style |= STYLE_FLAT_PROFILE;
344 user_specified |= STYLE_FLAT_PROFILE;
345 break;
346 case 'P':
347 if (optarg)
348 {
349 sym_id_add (optarg, EXCL_FLAT);
350 output_style |= STYLE_FLAT_PROFILE;
351 }
352 else
353 {
354 output_style &= ~STYLE_FLAT_PROFILE;
355 }
356 user_specified |= STYLE_FLAT_PROFILE;
357 break;
358 case 'q':
359 if (optarg)
360 {
361 if (strchr (optarg, '/'))
362 {
363 sym_id_add (optarg, INCL_ARCS);
364 }
365 else
366 {
367 sym_id_add (optarg, INCL_GRAPH);
368 }
369 }
370 output_style |= STYLE_CALL_GRAPH;
371 user_specified |= STYLE_CALL_GRAPH;
372 break;
373 case 'r':
374 output_style |= STYLE_FUNCTION_ORDER;
375 user_specified |= STYLE_FUNCTION_ORDER;
376 break;
377 case 'R':
378 output_style |= STYLE_FILE_ORDER;
379 user_specified |= STYLE_FILE_ORDER;
380 function_mapping_file = optarg;
381 break;
382 case 'Q':
383 if (optarg)
384 {
385 if (strchr (optarg, '/'))
386 {
387 sym_id_add (optarg, EXCL_ARCS);
388 }
389 else
390 {
391 sym_id_add (optarg, EXCL_GRAPH);
392 }
393 output_style |= STYLE_CALL_GRAPH;
394 }
395 else
396 {
397 output_style &= ~STYLE_CALL_GRAPH;
398 }
399 user_specified |= STYLE_CALL_GRAPH;
400 break;
401 case 's':
402 output_style |= STYLE_SUMMARY_FILE;
403 user_specified |= STYLE_SUMMARY_FILE;
404 break;
405 case 't':
406 bb_table_length = atoi (optarg);
407 if (bb_table_length < 0)
408 {
409 bb_table_length = 0;
410 }
411 break;
412 case 'T':
413 bsd_style_output = TRUE;
414 break;
415 case 'v':
416 /* This output is intended to follow the GNU standards document. */
417 printf (_("GNU gprof %s\n"), VERSION);
418 printf (_("Based on BSD gprof, copyright 1983 Regents of the University of California.\n"));
419 printf (_("\
420This program is free software. This program has absolutely no warranty.\n"));
421 done (0);
422 case 'w':
423 output_width = atoi (optarg);
424 if (output_width < 1)
425 {
426 output_width = 1;
427 }
428 break;
429 case 'x':
430 bb_annotate_all_lines = TRUE;
431 break;
432 case 'y':
433 create_annotation_files = TRUE;
434 break;
435 case 'z':
436 ignore_zeros = FALSE;
437 break;
438 case 'Z':
439 if (optarg)
440 {
441 sym_id_add (optarg, EXCL_EXEC);
442 output_style |= STYLE_EXEC_COUNTS;
443 }
444 else
445 {
446 output_style &= ~STYLE_EXEC_COUNTS;
447 }
448 user_specified |= STYLE_ANNOTATED_SOURCE;
449 break;
450 case OPTION_DEMANGLE:
451 demangle = TRUE;
452 if (optarg != NULL)
453 {
454 enum demangling_styles style;
455
456 style = cplus_demangle_name_to_style (optarg);
457 if (style == unknown_demangling)
458 {
459 fprintf (stderr,
460 _("%s: unknown demangling style `%s'\n"),
461 whoami, optarg);
462 xexit (1);
463 }
464
465 cplus_demangle_set_style (style);
466 }
467 break;
468 case OPTION_NO_DEMANGLE:
469 demangle = FALSE;
470 break;
471 default:
472 usage (stderr, 1);
473 }
474 }
475
476 /* Don't allow both ordering options, they modify the arc data in-place. */
477 if ((user_specified & STYLE_FUNCTION_ORDER)
478 && (user_specified & STYLE_FILE_ORDER))
479 {
480 fprintf (stderr,_("\
481%s: Only one of --function-ordering and --file-ordering may be specified.\n"),
482 whoami);
483 done (1);
484 }
485
486 /* --sum implies --line, otherwise we'd lose b-b counts in gmon.sum */
487 if (output_style & STYLE_SUMMARY_FILE)
488 {
489 line_granularity = 1;
490 }
491
492 /* append value of GPROF_PATH to source search list if set: */
493 str = (char *) getenv ("GPROF_PATH");
494 if (str)
495 {
496 search_list_append (&src_search_list, str);
497 }
498
499 if (optind < argc)
500 {
501 a_out_name = argv[optind++];
502 }
503 if (optind < argc)
504 {
505 gmon_name = argv[optind++];
506 }
507
508 /*
509 * Turn off default functions:
510 */
511 for (sp = &default_excluded_list[0]; *sp; sp++)
512 {
513 sym_id_add (*sp, EXCL_TIME);
514 sym_id_add (*sp, EXCL_GRAPH);
515 sym_id_add (*sp, EXCL_FLAT);
516 }
517
518 /*
519 * For line-by-line profiling, also want to keep those
520 * functions off the flat profile:
521 */
522 if (line_granularity)
523 {
524 for (sp = &default_excluded_list[0]; *sp; sp++)
525 {
526 sym_id_add (*sp, EXCL_FLAT);
527 }
528 }
529
530 /*
531 * Read symbol table from core file:
532 */
533 core_init (a_out_name);
534
535 /*
536 * If we should ignore direct function calls, we need to load
537 * to core's text-space:
538 */
539 if (ignore_direct_calls)
540 {
541 core_get_text_space (core_bfd);
542 }
543
544 /*
545 * Create symbols from core image:
546 */
547 if (line_granularity)
548 {
549 core_create_line_syms (core_bfd);
550 }
551 else
552 {
553 core_create_function_syms (core_bfd);
554 }
555
556 /*
557 * Translate sym specs into syms:
558 */
559 sym_id_parse ();
560
561 if (file_format == FF_PROF)
562 {
563#ifdef PROF_SUPPORT_IMPLEMENTED
564 /*
565 * Get information about mon.out file(s):
566 */
567 do
568 {
569 mon_out_read (gmon_name);
570 if (optind < argc)
571 {
572 gmon_name = argv[optind];
573 }
574 }
575 while (optind++ < argc);
576#else
577 fprintf (stderr,
578 _("%s: sorry, file format `prof' is not yet supported\n"),
579 whoami);
580 done (1);
581#endif
582 }
583 else
584 {
585 /*
586 * Get information about gmon.out file(s):
587 */
588 do
589 {
590 gmon_out_read (gmon_name);
591 if (optind < argc)
592 {
593 gmon_name = argv[optind];
594 }
595 }
596 while (optind++ < argc);
597 }
598
599 /*
600 * If user did not specify output style, try to guess something
601 * reasonable:
602 */
603 if (output_style == 0)
604 {
605 if (gmon_input & (INPUT_HISTOGRAM | INPUT_CALL_GRAPH))
606 {
607 output_style = STYLE_FLAT_PROFILE | STYLE_CALL_GRAPH;
608 }
609 else
610 {
611 output_style = STYLE_EXEC_COUNTS;
612 }
613 output_style &= ~user_specified;
614 }
615
616 /*
617 * Dump a gmon.sum file if requested (before any other processing!):
618 */
619 if (output_style & STYLE_SUMMARY_FILE)
620 {
621 gmon_out_write (GMONSUM);
622 }
623
624 if (gmon_input & INPUT_HISTOGRAM)
625 {
626 hist_assign_samples ();
627 }
628
629 if (gmon_input & INPUT_CALL_GRAPH)
630 {
631 cg = cg_assemble ();
632 }
633
634 /* do some simple sanity checks: */
635
636 if ((output_style & STYLE_FLAT_PROFILE)
637 && !(gmon_input & INPUT_HISTOGRAM))
638 {
639 fprintf (stderr, _("%s: gmon.out file is missing histogram\n"), whoami);
640 done (1);
641 }
642
643 if ((output_style & STYLE_CALL_GRAPH) && !(gmon_input & INPUT_CALL_GRAPH))
644 {
645 fprintf (stderr,
646 _("%s: gmon.out file is missing call-graph data\n"), whoami);
647 done (1);
648 }
649
650 /* output whatever user whishes to see: */
651
652 if (cg && (output_style & STYLE_CALL_GRAPH) && bsd_style_output)
653 {
654 cg_print (cg); /* print the dynamic profile */
655 }
656
657 if (output_style & STYLE_FLAT_PROFILE)
658 {
659 hist_print (); /* print the flat profile */
660 }
661
662 if (cg && (output_style & STYLE_CALL_GRAPH))
663 {
664 if (!bsd_style_output)
665 {
666 cg_print (cg); /* print the dynamic profile */
667 }
668 cg_print_index ();
669 }
670
671 if (output_style & STYLE_EXEC_COUNTS)
672 {
673 print_exec_counts ();
674 }
675
676 if (output_style & STYLE_ANNOTATED_SOURCE)
677 {
678 print_annotated_source ();
679 }
680 if (output_style & STYLE_FUNCTION_ORDER)
681 {
682 cg_print_function_ordering ();
683 }
684 if (output_style & STYLE_FILE_ORDER)
685 {
686 cg_print_file_ordering ();
687 }
688 return 0;
689}
690
691void
692done (status)
693 int status;
694{
695 exit (status);
696}
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