gprof/gprof.c

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