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         case 'e':
 263           sym_id_add (optarg, EXCL_GRAPH);
 264           break;
 265         case 'F':
 266           sym_id_add (optarg, INCL_TIME);
 267         case 'f':
 268           sym_id_add (optarg, INCL_GRAPH);
 269           break;
 270         case 'g':
 271           sym_id_add (optarg, EXCL_FLAT);
 272           break;
 273         case 'G':
 274           sym_id_add (optarg, INCL_FLAT);
 275           break;
 276         case 'h':
 277           usage (stdout, 0);
 278         case 'i':
 279           output_style |= STYLE_GMON_INFO;
 280           user_specified |= STYLE_GMON_INFO;
 281           break;
 282         case 'I':
 283           search_list_append (&src_search_list, optarg);
 284           break;
 285         case 'J':
 286           if (optarg)
 287             {
 288               sym_id_add (optarg, EXCL_ANNO);
 289               output_style |= STYLE_ANNOTATED_SOURCE;
 290             }
 291           else
 292             {
 293               output_style &= ~STYLE_ANNOTATED_SOURCE;
 294             }
 295           user_specified |= STYLE_ANNOTATED_SOURCE;
 296           break;
 297         case 'k':
 298           sym_id_add (optarg, EXCL_ARCS);
 299           break;
 300         case 'l':
 301           line_granularity = TRUE;
 302           break;
 303         case 'L':
 304           print_path = TRUE;
 305           break;
 306         case 'm':
 307           bb_min_calls = (unsigned long) strtoul (optarg, (char **) NULL, 10);
 308           break;
 309         case 'n':
 310           sym_id_add (optarg, INCL_TIME);
 311           break;
 312         case 'N':
 313           sym_id_add (optarg, EXCL_TIME);
 314           break;
 315         case 'O':
 316           switch (optarg[0])
 317             {
 318             case 'a':
 319               file_format = FF_AUTO;
 320               break;
 321             case 'm':
 322               file_format = FF_MAGIC;
 323               break;
 324             case 'b':
 325               file_format = FF_BSD;
 326               break;
 327             case '4':
 328               file_format = FF_BSD44;
 329               break;
 330             case 'p':
 331               file_format = FF_PROF;
 332               break;
 333             default:
 334               fprintf (stderr, _("%s: unknown file format %s\n"),
 335                        optarg, whoami);
 336               done (1);
 337             }
 338           break;
 339         case 'p':
 340           if (optarg)
 341             {
 342               sym_id_add (optarg, INCL_FLAT);
 343             }
 344           output_style |= STYLE_FLAT_PROFILE;
 345           user_specified |= STYLE_FLAT_PROFILE;
 346           break;
 347         case 'P':
 348           if (optarg)
 349             {
 350               sym_id_add (optarg, EXCL_FLAT);
 351               output_style |= STYLE_FLAT_PROFILE;
 352             }
 353           else
 354             {
 355               output_style &= ~STYLE_FLAT_PROFILE;
 356             }
 357           user_specified |= STYLE_FLAT_PROFILE;
 358           break;
 359         case 'q':
 360           if (optarg)
 361             {
 362               if (strchr (optarg, '/'))
 363                 {
 364                   sym_id_add (optarg, INCL_ARCS);
 365                 }
 366               else
 367                 {
 368                   sym_id_add (optarg, INCL_GRAPH);
 369                 }
 370             }
 371           output_style |= STYLE_CALL_GRAPH;
 372           user_specified |= STYLE_CALL_GRAPH;
 373           break;
 374         case 'r':
 375           output_style |= STYLE_FUNCTION_ORDER;
 376           user_specified |= STYLE_FUNCTION_ORDER;
 377           break;
 378         case 'R':
 379           output_style |= STYLE_FILE_ORDER;
 380           user_specified |= STYLE_FILE_ORDER;
 381           function_mapping_file = optarg;
 382           break;
 383         case 'Q':
 384           if (optarg)
 385             {
 386               if (strchr (optarg, '/'))
 387                 {
 388                   sym_id_add (optarg, EXCL_ARCS);
 389                 }
 390               else
 391                 {
 392                   sym_id_add (optarg, EXCL_GRAPH);
 393                 }
 394               output_style |= STYLE_CALL_GRAPH;
 395             }
 396           else
 397             {
 398               output_style &= ~STYLE_CALL_GRAPH;
 399             }
 400           user_specified |= STYLE_CALL_GRAPH;
 401           break;
 402         case 's':
 403           output_style |= STYLE_SUMMARY_FILE;
 404           user_specified |= STYLE_SUMMARY_FILE;
 405           break;
 406         case 'S':
 407           external_symbol_table = optarg;
 408           DBG (AOUTDEBUG, printf ("external-symbol-table: %s\n", optarg));
 409           break;
 410         case 't':
 411           bb_table_length = atoi (optarg);
 412           if (bb_table_length < 0)
 413             {
 414               bb_table_length = 0;
 415             }
 416           break;
 417         case 'T':
 418           bsd_style_output = TRUE;
 419           break;
 420         case 'v':
 421           /* This output is intended to follow the GNU standards document.  */
 422           printf (_("GNU gprof %s\n"), BFD_VERSION_STRING);
 423           printf (_("Based on BSD gprof, copyright 1983 Regents of the University of California.\n"));
 424           printf (_("\
 425 This program is free software.  This program has absolutely no warranty.\n"));
 426           done (0);
 427         case 'w':
 428           output_width = atoi (optarg);
 429           if (output_width < 1)
 430             {
 431               output_width = 1;
 432             }
 433           break;
 434         case 'x':
 435           bb_annotate_all_lines = TRUE;
 436           break;
 437         case 'y':
 438           create_annotation_files = TRUE;
 439           break;
 440         case 'z':
 441           ignore_zeros = FALSE;
 442           break;
 443         case 'Z':
 444           if (optarg)
 445             {
 446               sym_id_add (optarg, EXCL_EXEC);
 447               output_style |= STYLE_EXEC_COUNTS;
 448             }
 449           else
 450             {
 451               output_style &= ~STYLE_EXEC_COUNTS;
 452             }
 453           user_specified |= STYLE_ANNOTATED_SOURCE;
 454           break;
 455         case OPTION_DEMANGLE:
 456           demangle = TRUE;
 457           if (optarg != NULL)
 458             {
 459               enum demangling_styles style;
 460
 461               style = cplus_demangle_name_to_style (optarg);
 462               if (style == unknown_demangling)
 463                 {
 464                   fprintf (stderr,
 465                            _("%s: unknown demangling style `%s'\n"),
 466                            whoami, optarg);
 467                   xexit (1);
 468                 }
 469
 470               cplus_demangle_set_style (style);
 471            }
 472           break;
 473         case OPTION_NO_DEMANGLE:
 474           demangle = FALSE;
 475           break;
 476         case OPTION_INLINE_FILE_NAMES:
 477           inline_file_names = TRUE;
 478           break;
 479         default:
 480           usage (stderr, 1);
 481         }
 482     }
 483
 484   /* Don't allow both ordering options, they modify the arc data in-place.  */
 485   if ((user_specified & STYLE_FUNCTION_ORDER)
 486       && (user_specified & STYLE_FILE_ORDER))
 487     {
 488       fprintf (stderr,_("\
 489 %s: Only one of --function-ordering and --file-ordering may be specified.\n"),
 490                whoami);
 491       done (1);
 492     }
 493
 494   /* --sum implies --line, otherwise we'd lose basic block counts in
 495        gmon.sum */
 496   if (output_style & STYLE_SUMMARY_FILE)
 497     line_granularity = 1;
 498
 499   /* append value of GPROF_PATH to source search list if set: */
 500   str = (char *) getenv ("GPROF_PATH");
 501   if (str)
 502     search_list_append (&src_search_list, str);
 503
 504   if (optind < argc)
 505     a_out_name = argv[optind++];
 506
 507   if (optind < argc)
 508     gmon_name = argv[optind++];
 509
 510   /* Turn off default functions.  */
 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   /* Read symbol table from core file.  */
 519   core_init (a_out_name);
 520
 521   /* If we should ignore direct function calls, we need to load to
 522      core's text-space.  */
 523   if (ignore_direct_calls)
 524     core_get_text_space (core_bfd);
 525
 526   /* Create symbols from core image.  */
 527   if (external_symbol_table)
 528     core_create_syms_from (external_symbol_table);
 529   else if (line_granularity)
 530     core_create_line_syms ();
 531   else
 532     core_create_function_syms ();
 533
 534   /* Translate sym specs into syms.  */
 535   sym_id_parse ();
 536
 537   if (file_format == FF_PROF)
 538     {
 539       fprintf (stderr,
 540                _("%s: sorry, file format `prof' is not yet supported\n"),
 541                whoami);
 542       done (1);
 543     }
 544   else
 545     {
 546       /* Get information about gmon.out file(s).  */
 547       do
 548         {
 549           gmon_out_read (gmon_name);
 550           if (optind < argc)
 551             gmon_name = argv[optind];
 552         }
 553       while (optind++ < argc);
 554     }
 555
 556   /* If user did not specify output style, try to guess something
 557      reasonable.  */
 558   if (output_style == 0)
 559     {
 560       if (gmon_input & (INPUT_HISTOGRAM | INPUT_CALL_GRAPH))
 561         {
 562           if (gmon_input & INPUT_HISTOGRAM)
 563             output_style |= STYLE_FLAT_PROFILE;
 564           if (gmon_input & INPUT_CALL_GRAPH)
 565             output_style |= STYLE_CALL_GRAPH;
 566         }
 567       else
 568         output_style = STYLE_EXEC_COUNTS;
 569
 570       output_style &= ~user_specified;
 571     }
 572
 573   /* Dump a gmon.sum file if requested (before any other
 574      processing!)  */
 575   if (output_style & STYLE_SUMMARY_FILE)
 576     {
 577       gmon_out_write (GMONSUM);
 578     }
 579
 580   if (gmon_input & INPUT_HISTOGRAM)
 581     {
 582       hist_assign_samples ();
 583     }
 584
 585   if (gmon_input & INPUT_CALL_GRAPH)
 586     {
 587       cg = cg_assemble ();
 588     }
 589
 590   /* Do some simple sanity checks.  */
 591   if ((output_style & STYLE_FLAT_PROFILE)
 592       && !(gmon_input & INPUT_HISTOGRAM))
 593     {
 594       fprintf (stderr, _("%s: gmon.out file is missing histogram\n"), whoami);
 595       done (1);
 596     }
 597
 598   if ((output_style & STYLE_CALL_GRAPH) && !(gmon_input & INPUT_CALL_GRAPH))
 599     {
 600       fprintf (stderr,
 601                _("%s: gmon.out file is missing call-graph data\n"), whoami);
 602       done (1);
 603     }
 604
 605   /* Output whatever user whishes to see.  */
 606   if (cg && (output_style & STYLE_CALL_GRAPH) && bsd_style_output)
 607     {
 608       /* Print the dynamic profile.  */
 609       cg_print (cg);
 610     }
 611
 612   if (output_style & STYLE_FLAT_PROFILE)
 613     {
 614       /* Print the flat profile.  */
 615       hist_print ();
 616     }
 617
 618   if (cg && (output_style & STYLE_CALL_GRAPH))
 619     {
 620       if (!bsd_style_output)
 621         {
 622           /* Print the dynamic profile.  */
 623           cg_print (cg);
 624         }
 625       cg_print_index ();
 626     }
 627
 628   if (output_style & STYLE_EXEC_COUNTS)
 629     print_exec_counts ();
 630
 631   if (output_style & STYLE_ANNOTATED_SOURCE)
 632     print_annotated_source ();
 633
 634   if (output_style & STYLE_FUNCTION_ORDER)
 635     cg_print_function_ordering ();
 636
 637   if (output_style & STYLE_FILE_ORDER)
 638     cg_print_file_ordering ();
 639
 640   return 0;
 641 }
 642
 643 void
 644 done (int status)
 645 {
 646   exit (status);
 647 }