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[binutils.git] / gprof / gprof.c
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1 /*
2 * Copyright (c) 1983, 1993, 1998, 2001, 2002
3 * The Regents of the University of California. All rights reserved.
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.
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.
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"
47 static void usage PARAMS ((FILE *, int)) ATTRIBUTE_NORETURN;
48 int main PARAMS ((int, char **));
50 const char *whoami;
51 const char *function_mapping_file;
52 const char *a_out_name = A_OUTNAME;
53 long hz = HZ_WRONG;
56 * Default options values:
58 int debug_level = 0;
59 int output_style = 0;
60 int output_width = 80;
61 boolean bsd_style_output = false;
62 boolean demangle = true;
63 boolean discard_underscores = true;
64 boolean ignore_direct_calls = false;
65 boolean ignore_static_funcs = false;
66 boolean ignore_zeros = true;
67 boolean line_granularity = false;
68 boolean print_descriptions = true;
69 boolean print_path = false;
70 boolean ignore_non_functions = false;
71 File_Format file_format = FF_AUTO;
73 boolean first_output = true;
75 char copyright[] =
76 "@(#) Copyright (c) 1983 Regents of the University of California.\n\
77 All rights reserved.\n";
79 static char *gmon_name = GMONNAME; /* profile filename */
81 bfd *abfd;
84 * Functions that get excluded by default:
86 static char *default_excluded_list[] =
88 "_gprof_mcount", "mcount", "_mcount", "__mcount", "__mcount_internal",
89 "__mcleanup",
90 "<locore>", "<hicore>",
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. */
97 #define OPTION_DEMANGLE (150)
98 #define OPTION_NO_DEMANGLE (OPTION_DEMANGLE + 1)
100 static struct option long_options[] =
102 {"line", no_argument, 0, 'l'},
103 {"no-static", no_argument, 0, 'a'},
104 {"ignore-non-functions", no_argument, 0, 'D'},
106 /* output styles: */
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'},
121 /* various options to affect output: */
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'},
137 * These are for backwards-compatibility only. Their functionality
138 * is provided by the output style options already:
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'},
146 /* miscellaneous: */
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}
158 static void
159 usage (stream, status)
160 FILE *stream;
161 int status;
163 fprintf (stream, _("\
164 Usage: %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);
185 main (argc, argv)
186 int argc;
187 char **argv;
189 char **sp, *str;
190 Sym **cg = 0;
191 int ch, user_specified = 0;
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);
202 whoami = argv[0];
203 xmalloc_set_program_name (whoami);
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)
210 switch (ch)
212 case 'a':
213 ignore_static_funcs = true;
214 break;
215 case 'A':
216 if (optarg)
218 sym_id_add (optarg, INCL_ANNO);
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)
236 sym_id_add (optarg, INCL_EXEC);
238 output_style |= STYLE_EXEC_COUNTS;
239 user_specified |= STYLE_EXEC_COUNTS;
240 break;
241 case 'd':
242 if (optarg)
244 debug_level |= atoi (optarg);
245 debug_level |= ANYDEBUG;
247 else
249 debug_level = ~0;
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)
287 sym_id_add (optarg, EXCL_ANNO);
288 output_style |= STYLE_ANNOTATED_SOURCE;
290 else
292 output_style &= ~STYLE_ANNOTATED_SOURCE;
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])
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);
337 break;
338 case 'p':
339 if (optarg)
341 sym_id_add (optarg, INCL_FLAT);
343 output_style |= STYLE_FLAT_PROFILE;
344 user_specified |= STYLE_FLAT_PROFILE;
345 break;
346 case 'P':
347 if (optarg)
349 sym_id_add (optarg, EXCL_FLAT);
350 output_style |= STYLE_FLAT_PROFILE;
352 else
354 output_style &= ~STYLE_FLAT_PROFILE;
356 user_specified |= STYLE_FLAT_PROFILE;
357 break;
358 case 'q':
359 if (optarg)
361 if (strchr (optarg, '/'))
363 sym_id_add (optarg, INCL_ARCS);
365 else
367 sym_id_add (optarg, INCL_GRAPH);
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)
385 if (strchr (optarg, '/'))
387 sym_id_add (optarg, EXCL_ARCS);
389 else
391 sym_id_add (optarg, EXCL_GRAPH);
393 output_style |= STYLE_CALL_GRAPH;
395 else
397 output_style &= ~STYLE_CALL_GRAPH;
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)
409 bb_table_length = 0;
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 (_("\
420 This 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)
426 output_width = 1;
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)
441 sym_id_add (optarg, EXCL_EXEC);
442 output_style |= STYLE_EXEC_COUNTS;
444 else
446 output_style &= ~STYLE_EXEC_COUNTS;
448 user_specified |= STYLE_ANNOTATED_SOURCE;
449 break;
450 case OPTION_DEMANGLE:
451 demangle = true;
452 if (optarg != NULL)
454 enum demangling_styles style;
456 style = cplus_demangle_name_to_style (optarg);
457 if (style == unknown_demangling)
459 fprintf (stderr,
460 _("%s: unknown demangling style `%s'\n"),
461 whoami, optarg);
462 xexit (1);
465 cplus_demangle_set_style (style);
467 break;
468 case OPTION_NO_DEMANGLE:
469 demangle = false;
470 break;
471 default:
472 usage (stderr, 1);
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))
480 fprintf (stderr,_("\
481 %s: Only one of --function-ordering and --file-ordering may be specified.\n"),
482 whoami);
483 done (1);
486 /* --sum implies --line, otherwise we'd lose b-b counts in gmon.sum */
487 if (output_style & STYLE_SUMMARY_FILE)
489 line_granularity = 1;
492 /* append value of GPROF_PATH to source search list if set: */
493 str = (char *) getenv ("GPROF_PATH");
494 if (str)
496 search_list_append (&src_search_list, str);
499 if (optind < argc)
501 a_out_name = argv[optind++];
503 if (optind < argc)
505 gmon_name = argv[optind++];
509 * Turn off default functions:
511 for (sp = &default_excluded_list[0]; *sp; sp++)
513 sym_id_add (*sp, EXCL_TIME);
514 sym_id_add (*sp, EXCL_GRAPH);
515 sym_id_add (*sp, EXCL_FLAT);
519 * For line-by-line profiling, also want to keep those
520 * functions off the flat profile:
522 if (line_granularity)
524 for (sp = &default_excluded_list[0]; *sp; sp++)
526 sym_id_add (*sp, EXCL_FLAT);
531 * Read symbol table from core file:
533 core_init (a_out_name);
536 * If we should ignore direct function calls, we need to load
537 * to core's text-space:
539 if (ignore_direct_calls)
541 core_get_text_space (core_bfd);
545 * Create symbols from core image:
547 if (line_granularity)
549 core_create_line_syms (core_bfd);
551 else
553 core_create_function_syms (core_bfd);
557 * Translate sym specs into syms:
559 sym_id_parse ();
561 if (file_format == FF_PROF)
563 #ifdef PROF_SUPPORT_IMPLEMENTED
565 * Get information about mon.out file(s):
569 mon_out_read (gmon_name);
570 if (optind < argc)
572 gmon_name = argv[optind];
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
583 else
586 * Get information about gmon.out file(s):
590 gmon_out_read (gmon_name);
591 if (optind < argc)
593 gmon_name = argv[optind];
596 while (optind++ < argc);
600 * If user did not specify output style, try to guess something
601 * reasonable:
603 if (output_style == 0)
605 if (gmon_input & (INPUT_HISTOGRAM | INPUT_CALL_GRAPH))
607 output_style = STYLE_FLAT_PROFILE | STYLE_CALL_GRAPH;
609 else
611 output_style = STYLE_EXEC_COUNTS;
613 output_style &= ~user_specified;
617 * Dump a gmon.sum file if requested (before any other processing!):
619 if (output_style & STYLE_SUMMARY_FILE)
621 gmon_out_write (GMONSUM);
624 if (gmon_input & INPUT_HISTOGRAM)
626 hist_assign_samples ();
629 if (gmon_input & INPUT_CALL_GRAPH)
631 cg = cg_assemble ();
634 /* do some simple sanity checks: */
636 if ((output_style & STYLE_FLAT_PROFILE)
637 && !(gmon_input & INPUT_HISTOGRAM))
639 fprintf (stderr, _("%s: gmon.out file is missing histogram\n"), whoami);
640 done (1);
643 if ((output_style & STYLE_CALL_GRAPH) && !(gmon_input & INPUT_CALL_GRAPH))
645 fprintf (stderr,
646 _("%s: gmon.out file is missing call-graph data\n"), whoami);
647 done (1);
650 /* output whatever user whishes to see: */
652 if (cg && (output_style & STYLE_CALL_GRAPH) && bsd_style_output)
654 cg_print (cg); /* print the dynamic profile */
657 if (output_style & STYLE_FLAT_PROFILE)
659 hist_print (); /* print the flat profile */
662 if (cg && (output_style & STYLE_CALL_GRAPH))
664 if (!bsd_style_output)
666 cg_print (cg); /* print the dynamic profile */
668 cg_print_index ();
671 if (output_style & STYLE_EXEC_COUNTS)
673 print_exec_counts ();
676 if (output_style & STYLE_ANNOTATED_SOURCE)
678 print_annotated_source ();
680 if (output_style & STYLE_FUNCTION_ORDER)
682 cg_print_function_ordering ();
684 if (output_style & STYLE_FILE_ORDER)
686 cg_print_file_ordering ();
688 return 0;
691 void
692 done (status)
693 int status;
695 exit (status);