gprof/gmon_io.c

   1 /* gmon_io.c - Input and output from/to gmon.out files.
   2
   3    Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
   4    Free Software Foundation, Inc.
   5
   6    This file is part of GNU Binutils.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
  21    02110-1301, USA.  */
  22 \f
  23 #include "gprof.h"
  24 #include "binary-io.h"
  25 #include "search_list.h"
  26 #include "source.h"
  27 #include "symtab.h"
  28 #include "cg_arcs.h"
  29 #include "basic_blocks.h"
  30 #include "corefile.h"
  31 #include "call_graph.h"
  32 #include "gmon_io.h"
  33 #include "gmon_out.h"
  34 #include "gmon.h"               /* Fetch header for old format.  */
  35 #include "hertz.h"
  36 #include "hist.h"
  37 #include "libiberty.h"
  38
  39 enum gmon_ptr_size {
  40   ptr_32bit,
  41   ptr_64bit
  42 };
  43
  44 enum gmon_ptr_signedness {
  45   ptr_signed,
  46   ptr_unsigned
  47 };
  48
  49 static enum gmon_ptr_size gmon_get_ptr_size (void);
  50 static enum gmon_ptr_signedness gmon_get_ptr_signedness (void);
  51
  52 #ifdef BFD_HOST_U_64_BIT
  53 static int gmon_io_read_64 (FILE *, BFD_HOST_U_64_BIT *);
  54 static int gmon_io_write_64 (FILE *, BFD_HOST_U_64_BIT);
  55 #endif
  56 static int gmon_read_raw_arc
  57   (FILE *, bfd_vma *, bfd_vma *, unsigned long *);
  58 static int gmon_write_raw_arc
  59   (FILE *, bfd_vma, bfd_vma, unsigned long);
  60
  61 int gmon_input = 0;
  62 int gmon_file_version = 0;      /* 0 == old (non-versioned) file format.  */
  63
  64 static enum gmon_ptr_size
  65 gmon_get_ptr_size ()
  66 {
  67   int size;
  68
  69   /* Pick best size for pointers.  Start with the ELF size, and if not
  70      elf go with the architecture's address size.  */
  71   size = bfd_get_arch_size (core_bfd);
  72   if (size == -1)
  73     size = bfd_arch_bits_per_address (core_bfd);
  74
  75   switch (size)
  76     {
  77     case 32:
  78       return ptr_32bit;
  79
  80     case 64:
  81       return ptr_64bit;
  82
  83     default:
  84       fprintf (stderr, _("%s: address size has unexpected value of %u\n"),
  85                whoami, size);
  86       done (1);
  87     }
  88 }
  89
  90 static enum gmon_ptr_signedness
  91 gmon_get_ptr_signedness ()
  92 {
  93   int sext;
  94
  95   /* Figure out whether to sign extend.  If BFD doesn't know, assume no.  */
  96   sext = bfd_get_sign_extend_vma (core_bfd);
  97   if (sext == -1)
  98     return ptr_unsigned;
  99   return (sext ? ptr_signed : ptr_unsigned);
 100 }
 101
 102 int
 103 gmon_io_read_32 (FILE *ifp, unsigned int *valp)
 104 {
 105   char buf[4];
 106
 107   if (fread (buf, 1, 4, ifp) != 4)
 108     return 1;
 109   *valp = bfd_get_32 (core_bfd, buf);
 110   return 0;
 111 }
 112
 113 #ifdef BFD_HOST_U_64_BIT
 114 static int
 115 gmon_io_read_64 (FILE *ifp, BFD_HOST_U_64_BIT *valp)
 116 {
 117   char buf[8];
 118
 119   if (fread (buf, 1, 8, ifp) != 8)
 120     return 1;
 121   *valp = bfd_get_64 (core_bfd, buf);
 122   return 0;
 123 }
 124 #endif
 125
 126 int
 127 gmon_io_read_vma (FILE *ifp, bfd_vma *valp)
 128 {
 129   unsigned int val32;
 130 #ifdef BFD_HOST_U_64_BIT
 131   BFD_HOST_U_64_BIT val64;
 132 #endif
 133
 134   switch (gmon_get_ptr_size ())
 135     {
 136     case ptr_32bit:
 137       if (gmon_io_read_32 (ifp, &val32))
 138         return 1;
 139       if (gmon_get_ptr_signedness () == ptr_signed)
 140         *valp = (int) val32;
 141       else
 142         *valp = val32;
 143       break;
 144
 145 #ifdef BFD_HOST_U_64_BIT
 146     case ptr_64bit:
 147       if (gmon_io_read_64 (ifp, &val64))
 148         return 1;
 149 #ifdef BFD_HOST_64_BIT
 150       if (gmon_get_ptr_signedness () == ptr_signed)
 151         *valp = (BFD_HOST_64_BIT) val64;
 152       else
 153 #endif
 154         *valp = val64;
 155       break;
 156 #endif
 157     }
 158   return 0;
 159 }
 160
 161 int
 162 gmon_io_read (FILE *ifp, char *buf, size_t n)
 163 {
 164   if (fread (buf, 1, n, ifp) != n)
 165     return 1;
 166   return 0;
 167 }
 168
 169 int
 170 gmon_io_write_32 (FILE *ofp, unsigned int val)
 171 {
 172   char buf[4];
 173
 174   bfd_put_32 (core_bfd, (bfd_vma) val, buf);
 175   if (fwrite (buf, 1, 4, ofp) != 4)
 176     return 1;
 177   return 0;
 178 }
 179
 180 #ifdef BFD_HOST_U_64_BIT
 181 static int
 182 gmon_io_write_64 (FILE *ofp, BFD_HOST_U_64_BIT val)
 183 {
 184   char buf[8];
 185
 186   bfd_put_64 (core_bfd, (bfd_vma) val, buf);
 187   if (fwrite (buf, 1, 8, ofp) != 8)
 188     return 1;
 189   return 0;
 190 }
 191 #endif
 192
 193 int
 194 gmon_io_write_vma (FILE *ofp, bfd_vma val)
 195 {
 196
 197   switch (gmon_get_ptr_size ())
 198     {
 199     case ptr_32bit:
 200       if (gmon_io_write_32 (ofp, (unsigned int) val))
 201         return 1;
 202       break;
 203
 204 #ifdef BFD_HOST_U_64_BIT
 205     case ptr_64bit:
 206       if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) val))
 207         return 1;
 208       break;
 209 #endif
 210     }
 211   return 0;
 212 }
 213
 214 int
 215 gmon_io_write_8 (FILE *ofp, unsigned int val)
 216 {
 217   char buf[1];
 218
 219   bfd_put_8 (core_bfd, val, buf);
 220   if (fwrite (buf, 1, 1, ofp) != 1)
 221     return 1;
 222   return 0;
 223 }
 224
 225 int
 226 gmon_io_write (FILE *ofp, char *buf, size_t n)
 227 {
 228   if (fwrite (buf, 1, n, ofp) != n)
 229     return 1;
 230   return 0;
 231 }
 232
 233 static int
 234 gmon_read_raw_arc (FILE *ifp, bfd_vma *fpc, bfd_vma *spc, unsigned long *cnt)
 235 {
 236 #ifdef BFD_HOST_U_64_BIT
 237   BFD_HOST_U_64_BIT cnt64;
 238 #endif
 239   unsigned int cnt32;
 240
 241   if (gmon_io_read_vma (ifp, fpc)
 242       || gmon_io_read_vma (ifp, spc))
 243     return 1;
 244
 245   switch (gmon_get_ptr_size ())
 246     {
 247     case ptr_32bit:
 248       if (gmon_io_read_32 (ifp, &cnt32))
 249         return 1;
 250       *cnt = cnt32;
 251       break;
 252
 253 #ifdef BFD_HOST_U_64_BIT
 254     case ptr_64bit:
 255       if (gmon_io_read_64 (ifp, &cnt64))
 256         return 1;
 257       *cnt = cnt64;
 258       break;
 259 #endif
 260
 261     default:
 262       return 1;
 263     }
 264   return 0;
 265 }
 266
 267 static int
 268 gmon_write_raw_arc (FILE *ofp, bfd_vma fpc, bfd_vma spc, unsigned long cnt)
 269 {
 270
 271   if (gmon_io_write_vma (ofp, fpc)
 272       || gmon_io_write_vma (ofp, spc))
 273     return 1;
 274
 275   switch (gmon_get_ptr_size ())
 276     {
 277     case ptr_32bit:
 278       if (gmon_io_write_32 (ofp, (unsigned int) cnt))
 279         return 1;
 280       break;
 281
 282 #ifdef BFD_HOST_U_64_BIT
 283     case ptr_64bit:
 284       if (gmon_io_write_64 (ofp, (BFD_HOST_U_64_BIT) cnt))
 285         return 1;
 286       break;
 287 #endif
 288     }
 289   return 0;
 290 }
 291
 292 void
 293 gmon_out_read (const char *filename)
 294 {
 295   FILE *ifp;
 296   struct gmon_hdr ghdr;
 297   unsigned char tag;
 298   int nhist = 0, narcs = 0, nbbs = 0;
 299
 300   /* Open gmon.out file.  */
 301   if (strcmp (filename, "-") == 0)
 302     {
 303       ifp = stdin;
 304       SET_BINARY (fileno (stdin));
 305     }
 306   else
 307     {
 308       ifp = fopen (filename, FOPEN_RB);
 309
 310       if (!ifp)
 311         {
 312           perror (filename);
 313           done (1);
 314         }
 315     }
 316
 317   if (fread (&ghdr, sizeof (struct gmon_hdr), 1, ifp) != 1)
 318     {
 319       fprintf (stderr, _("%s: file too short to be a gmon file\n"),
 320                filename);
 321       done (1);
 322     }
 323
 324   if ((file_format == FF_MAGIC)
 325       || (file_format == FF_AUTO && !strncmp (&ghdr.cookie[0], GMON_MAGIC, 4)))
 326     {
 327       if (file_format == FF_MAGIC && strncmp (&ghdr.cookie[0], GMON_MAGIC, 4))
 328         {
 329           fprintf (stderr, _("%s: file `%s' has bad magic cookie\n"),
 330                    whoami, filename);
 331           done (1);
 332         }
 333
 334       /* Right magic, so it's probably really a new gmon.out file.  */
 335       gmon_file_version = bfd_get_32 (core_bfd, (bfd_byte *) ghdr.version);
 336
 337       if (gmon_file_version != GMON_VERSION && gmon_file_version != 0)
 338         {
 339           fprintf (stderr,
 340                    _("%s: file `%s' has unsupported version %d\n"),
 341                    whoami, filename, gmon_file_version);
 342           done (1);
 343         }
 344
 345       /* Read in all the records.  */
 346       while (fread (&tag, sizeof (tag), 1, ifp) == 1)
 347         {
 348           switch (tag)
 349             {
 350             case GMON_TAG_TIME_HIST:
 351               ++nhist;
 352               gmon_input |= INPUT_HISTOGRAM;
 353               hist_read_rec (ifp, filename);
 354               break;
 355
 356             case GMON_TAG_CG_ARC:
 357               ++narcs;
 358               gmon_input |= INPUT_CALL_GRAPH;
 359               cg_read_rec (ifp, filename);
 360               break;
 361
 362             case GMON_TAG_BB_COUNT:
 363               ++nbbs;
 364               gmon_input |= INPUT_BB_COUNTS;
 365               bb_read_rec (ifp, filename);
 366               break;
 367
 368             default:
 369               fprintf (stderr,
 370                        _("%s: %s: found bad tag %d (file corrupted?)\n"),
 371                        whoami, filename, tag);
 372               done (1);
 373             }
 374         }
 375     }
 376   else if (file_format == FF_AUTO
 377            || file_format == FF_BSD
 378            || file_format == FF_BSD44)
 379     {
 380       struct hdr
 381       {
 382         bfd_vma low_pc;
 383         bfd_vma high_pc;
 384         unsigned int ncnt;
 385       };
 386       unsigned int i;
 387       int samp_bytes, header_size = 0;
 388       unsigned long count;
 389       bfd_vma from_pc, self_pc;
 390       UNIT raw_bin_count;
 391       struct hdr tmp;
 392       unsigned int version;
 393       unsigned int hist_num_bins;
 394
 395       /* Information from a gmon.out file is in two parts: an array of
 396          sampling hits within pc ranges, and the arcs.  */
 397       gmon_input = INPUT_HISTOGRAM | INPUT_CALL_GRAPH;
 398
 399       /* This fseek() ought to work even on stdin as long as it's
 400          not an interactive device (heck, is there anybody who would
 401          want to type in a gmon.out at the terminal?).  */
 402       if (fseek (ifp, 0, SEEK_SET) < 0)
 403         {
 404           perror (filename);
 405           done (1);
 406         }
 407
 408       /* The beginning of the old BSD header and the 4.4BSD header
 409          are the same: lowpc, highpc, ncnt  */
 410       if (gmon_io_read_vma (ifp, &tmp.low_pc)
 411           || gmon_io_read_vma (ifp, &tmp.high_pc)
 412           || gmon_io_read_32 (ifp, &tmp.ncnt))
 413         {
 414  bad_gmon_file:
 415           fprintf (stderr, _("%s: file too short to be a gmon file\n"),
 416                    filename);
 417           done (1);
 418         }
 419
 420       /* Check to see if this a 4.4BSD-style header.  */
 421       if (gmon_io_read_32 (ifp, &version))
 422         goto bad_gmon_file;
 423
 424       if (version == GMONVERSION)
 425         {
 426           unsigned int profrate;
 427
 428           /* 4.4BSD format header.  */
 429           if (gmon_io_read_32 (ifp, &profrate))
 430             goto bad_gmon_file;
 431
 432           if (!histograms)
 433             hz = profrate;
 434           else if (hz != (int) profrate)
 435             {
 436               fprintf (stderr,
 437                        _("%s: profiling rate incompatible with first gmon file\n"),
 438                        filename);
 439               done (1);
 440             }
 441
 442           switch (gmon_get_ptr_size ())
 443             {
 444             case ptr_32bit:
 445               header_size = GMON_HDRSIZE_BSD44_32;
 446               break;
 447
 448             case ptr_64bit:
 449               header_size = GMON_HDRSIZE_BSD44_64;
 450               break;
 451             }
 452         }
 453       else
 454         {
 455           /* Old style BSD format.  */
 456           if (file_format == FF_BSD44)
 457             {
 458               fprintf (stderr, _("%s: file `%s' has bad magic cookie\n"),
 459                        whoami, filename);
 460               done (1);
 461             }
 462
 463           switch (gmon_get_ptr_size ())
 464             {
 465             case ptr_32bit:
 466               header_size = GMON_HDRSIZE_OLDBSD_32;
 467               break;
 468
 469             case ptr_64bit:
 470               header_size = GMON_HDRSIZE_OLDBSD_64;
 471               break;
 472             }
 473         }
 474
 475       /* Position the file to after the header.  */
 476       if (fseek (ifp, header_size, SEEK_SET) < 0)
 477         {
 478           perror (filename);
 479           done (1);
 480         }
 481
 482       samp_bytes = tmp.ncnt - header_size;
 483       hist_num_bins = samp_bytes / sizeof (UNIT);
 484       if (histograms && (tmp.low_pc != histograms->lowpc
 485                          || tmp.high_pc != histograms->highpc
 486                          || (hist_num_bins != histograms->num_bins)))
 487         {
 488           fprintf (stderr, _("%s: incompatible with first gmon file\n"),
 489                    filename);
 490           done (1);
 491         }
 492
 493       if (!histograms)
 494         {
 495           num_histograms = 1;
 496           histograms = (struct histogram *) xmalloc (sizeof (struct histogram));
 497           histograms->lowpc = tmp.low_pc;
 498           histograms->highpc = tmp.high_pc;
 499           histograms->num_bins = hist_num_bins;
 500           hist_scale = (double)((tmp.high_pc - tmp.low_pc) / sizeof (UNIT))
 501             / hist_num_bins;
 502           histograms->sample = (int *) xmalloc (hist_num_bins * sizeof (int));
 503           memset (histograms->sample, 0,
 504                   hist_num_bins * sizeof (int));
 505         }
 506
 507       DBG (SAMPLEDEBUG,
 508            printf ("[gmon_out_read] lowpc 0x%lx highpc 0x%lx ncnt %d\n",
 509                    (unsigned long) tmp.low_pc, (unsigned long) tmp.high_pc,
 510                    tmp.ncnt);
 511            printf ("[gmon_out_read] samp_bytes %d hist_num_bins %d\n",
 512                    samp_bytes, hist_num_bins));
 513
 514       /* Make sure that we have sensible values.  */
 515       if (samp_bytes < 0 || histograms->lowpc > histograms->highpc)
 516         {
 517           fprintf (stderr,
 518             _("%s: file '%s' does not appear to be in gmon.out format\n"),
 519             whoami, filename);
 520           done (1);
 521         }
 522
 523       if (hist_num_bins)
 524         ++nhist;
 525
 526       for (i = 0; i < hist_num_bins; ++i)
 527         {
 528           if (fread (raw_bin_count, sizeof (raw_bin_count), 1, ifp) != 1)
 529             {
 530               fprintf (stderr,
 531                        _("%s: unexpected EOF after reading %d/%d bins\n"),
 532                        whoami, --i, hist_num_bins);
 533               done (1);
 534             }
 535
 536           histograms->sample[i]
 537             += bfd_get_16 (core_bfd, (bfd_byte *) raw_bin_count);
 538         }
 539
 540       /* The rest of the file consists of a bunch of
 541          <from,self,count> tuples.  */
 542       while (gmon_read_raw_arc (ifp, &from_pc, &self_pc, &count) == 0)
 543         {
 544           ++narcs;
 545
 546           DBG (SAMPLEDEBUG,
 547              printf ("[gmon_out_read] frompc 0x%lx selfpc 0x%lx count %lu\n",
 548                      (unsigned long) from_pc, (unsigned long) self_pc, count));
 549
 550           /* Add this arc.  */
 551           cg_tally (from_pc, self_pc, count);
 552         }
 553
 554       if (hz == HZ_WRONG)
 555         {
 556           /* How many ticks per second?  If we can't tell, report
 557              time in ticks.  */
 558           hz = hertz ();
 559
 560           if (hz == HZ_WRONG)
 561             {
 562               hz = 1;
 563               fprintf (stderr, _("time is in ticks, not seconds\n"));
 564             }
 565         }
 566     }
 567   else
 568     {
 569       fprintf (stderr, _("%s: don't know how to deal with file format %d\n"),
 570                whoami, file_format);
 571       done (1);
 572     }
 573
 574   if (ifp != stdin)
 575     fclose (ifp);
 576
 577   if (output_style & STYLE_GMON_INFO)
 578     {
 579       printf (_("File `%s' (version %d) contains:\n"),
 580               filename, gmon_file_version);
 581       printf (nhist == 1 ?
 582               _("\t%d histogram record\n") :
 583               _("\t%d histogram records\n"), nhist);
 584       printf (narcs == 1 ?
 585               _("\t%d call-graph record\n") :
 586               _("\t%d call-graph records\n"), narcs);
 587       printf (nbbs == 1 ?
 588               _("\t%d basic-block count record\n") :
 589               _("\t%d basic-block count records\n"), nbbs);
 590       first_output = FALSE;
 591     }
 592 }
 593
 594
 595 void
 596 gmon_out_write (const char *filename)
 597 {
 598   FILE *ofp;
 599   struct gmon_hdr ghdr;
 600
 601   ofp = fopen (filename, FOPEN_WB);
 602   if (!ofp)
 603     {
 604       perror (filename);
 605       done (1);
 606     }
 607
 608   if (file_format == FF_AUTO || file_format == FF_MAGIC)
 609     {
 610       /* Write gmon header.  */
 611
 612       memcpy (&ghdr.cookie[0], GMON_MAGIC, 4);
 613       bfd_put_32 (core_bfd, (bfd_vma) GMON_VERSION, (bfd_byte *) ghdr.version);
 614
 615       if (fwrite (&ghdr, sizeof (ghdr), 1, ofp) != 1)
 616         {
 617           perror (filename);
 618           done (1);
 619         }
 620
 621       /* Write execution time histogram if we have one.  */
 622       if (gmon_input & INPUT_HISTOGRAM)
 623         hist_write_hist (ofp, filename);
 624
 625       /* Write call graph arcs if we have any.  */
 626       if (gmon_input & INPUT_CALL_GRAPH)
 627         cg_write_arcs (ofp, filename);
 628
 629       /* Write basic-block info if we have it.  */
 630       if (gmon_input & INPUT_BB_COUNTS)
 631         bb_write_blocks (ofp, filename);
 632     }
 633   else if (file_format == FF_BSD || file_format == FF_BSD44)
 634     {
 635       UNIT raw_bin_count;
 636       unsigned int i, hdrsize;
 637       unsigned padsize;
 638       char pad[3*4];
 639       Arc *arc;
 640       Sym *sym;
 641
 642       memset (pad, 0, sizeof (pad));
 643
 644       hdrsize = 0;
 645       /* Decide how large the header will be.  Use the 4.4BSD format
 646          header if explicitly specified, or if the profiling rate is
 647          non-standard.  Otherwise, use the old BSD format.  */
 648       if (file_format == FF_BSD44
 649           || hz != hertz())
 650         {
 651           padsize = 3*4;
 652           switch (gmon_get_ptr_size ())
 653             {
 654             case ptr_32bit:
 655               hdrsize = GMON_HDRSIZE_BSD44_32;
 656               break;
 657
 658             case ptr_64bit:
 659               hdrsize = GMON_HDRSIZE_BSD44_64;
 660               break;
 661             }
 662         }
 663       else
 664         {
 665           padsize = 0;
 666           switch (gmon_get_ptr_size ())
 667             {
 668             case ptr_32bit:
 669               hdrsize = GMON_HDRSIZE_OLDBSD_32;
 670               break;
 671
 672             case ptr_64bit:
 673               hdrsize = GMON_HDRSIZE_OLDBSD_64;
 674               /* FIXME: Checking host compiler defines here means that we can't
 675                  use a cross gprof alpha OSF.  */
 676 #if defined(__alpha__) && defined (__osf__)
 677               padsize = 4;
 678 #endif
 679               break;
 680             }
 681         }
 682
 683       /* Write the parts of the headers that are common to both the
 684          old BSD and 4.4BSD formats.  */
 685       if (gmon_io_write_vma (ofp, histograms->lowpc)
 686           || gmon_io_write_vma (ofp, histograms->highpc)
 687           || gmon_io_write_32 (ofp, histograms->num_bins
 688                                * sizeof (UNIT) + hdrsize))
 689         {
 690           perror (filename);
 691           done (1);
 692         }
 693
 694       /* Write out the 4.4BSD header bits, if that's what we're using.  */
 695       if (file_format == FF_BSD44
 696           || hz != hertz())
 697         {
 698           if (gmon_io_write_32 (ofp, GMONVERSION)
 699               || gmon_io_write_32 (ofp, (unsigned int) hz))
 700             {
 701               perror (filename);
 702               done (1);
 703             }
 704         }
 705
 706       /* Now write out any necessary padding after the meaningful
 707          header bits.  */
 708       if (padsize != 0
 709           && fwrite (pad, 1, padsize, ofp) != padsize)
 710         {
 711           perror (filename);
 712           done (1);
 713         }
 714
 715       /* Dump the samples.  */
 716       for (i = 0; i < histograms->num_bins; ++i)
 717         {
 718           bfd_put_16 (core_bfd, (bfd_vma) histograms->sample[i],
 719                       (bfd_byte *) &raw_bin_count[0]);
 720           if (fwrite (&raw_bin_count[0], sizeof (raw_bin_count), 1, ofp) != 1)
 721             {
 722               perror (filename);
 723               done (1);
 724             }
 725         }
 726
 727       /* Dump the normalized raw arc information.  */
 728       for (sym = symtab.base; sym < symtab.limit; ++sym)
 729         {
 730           for (arc = sym->cg.children; arc; arc = arc->next_child)
 731             {
 732               if (gmon_write_raw_arc (ofp, arc->parent->addr,
 733                                       arc->child->addr, arc->count))
 734                 {
 735                   perror (filename);
 736                   done (1);
 737                 }
 738               DBG (SAMPLEDEBUG,
 739                    printf ("[dumpsum] frompc 0x%lx selfpc 0x%lx count %lu\n",
 740                            (unsigned long) arc->parent->addr,
 741                            (unsigned long) arc->child->addr, arc->count));
 742             }
 743         }
 744
 745       fclose (ofp);
 746     }
 747   else
 748     {
 749       fprintf (stderr, _("%s: don't know how to deal with file format %d\n"),
 750                whoami, file_format);
 751       done (1);
 752     }
 753 }