| 1 | /* hist.c - Histogram related operations. |
| 2 | |
| 3 | Copyright (C) 2000 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GNU Binutils. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 20 | 02111-1307, USA. */ |
| 21 | \f |
| 22 | #include <stdio.h> |
| 23 | #include "libiberty.h" |
| 24 | #include "gprof.h" |
| 25 | #include "corefile.h" |
| 26 | #include "gmon_io.h" |
| 27 | #include "gmon_out.h" |
| 28 | #include "hist.h" |
| 29 | #include "symtab.h" |
| 30 | #include "sym_ids.h" |
| 31 | #include "utils.h" |
| 32 | |
| 33 | #define UNITS_TO_CODE (offset_to_code / sizeof(UNIT)) |
| 34 | |
| 35 | static void scale_and_align_entries PARAMS ((void)); |
| 36 | |
| 37 | /* Declarations of automatically generated functions to output blurbs. */ |
| 38 | extern void flat_blurb PARAMS ((FILE * fp)); |
| 39 | |
| 40 | bfd_vma s_lowpc; /* Lowest address in .text. */ |
| 41 | bfd_vma s_highpc = 0; /* Highest address in .text. */ |
| 42 | bfd_vma lowpc, highpc; /* Same, but expressed in UNITs. */ |
| 43 | int hist_num_bins = 0; /* Number of histogram samples. */ |
| 44 | int *hist_sample = 0; /* Histogram samples (shorts in the file!). */ |
| 45 | double hist_scale; |
| 46 | char hist_dimension[sizeof (((struct gmon_hist_hdr *) 0)->dimen) + 1] = |
| 47 | "seconds"; |
| 48 | char hist_dimension_abbrev = 's'; |
| 49 | |
| 50 | static double accum_time; /* Accumulated time so far for print_line(). */ |
| 51 | static double total_time; /* Total time for all routines. */ |
| 52 | |
| 53 | /* Table of SI prefixes for powers of 10 (used to automatically |
| 54 | scale some of the values in the flat profile). */ |
| 55 | const struct |
| 56 | { |
| 57 | char prefix; |
| 58 | double scale; |
| 59 | } |
| 60 | SItab[] = |
| 61 | { |
| 62 | { |
| 63 | 'T', 1e-12 |
| 64 | } |
| 65 | , /* tera */ |
| 66 | { |
| 67 | 'G', 1e-09 |
| 68 | } |
| 69 | , /* giga */ |
| 70 | { |
| 71 | 'M', 1e-06 |
| 72 | } |
| 73 | , /* mega */ |
| 74 | { |
| 75 | 'K', 1e-03 |
| 76 | } |
| 77 | , /* kilo */ |
| 78 | { |
| 79 | ' ', 1e-00 |
| 80 | } |
| 81 | , |
| 82 | { |
| 83 | 'm', 1e+03 |
| 84 | } |
| 85 | , /* milli */ |
| 86 | { |
| 87 | 'u', 1e+06 |
| 88 | } |
| 89 | , /* micro */ |
| 90 | { |
| 91 | 'n', 1e+09 |
| 92 | } |
| 93 | , /* nano */ |
| 94 | { |
| 95 | 'p', 1e+12 |
| 96 | } |
| 97 | , /* pico */ |
| 98 | { |
| 99 | 'f', 1e+15 |
| 100 | } |
| 101 | , /* femto */ |
| 102 | { |
| 103 | 'a', 1e+18 |
| 104 | } |
| 105 | , /* ato */ |
| 106 | }; |
| 107 | |
| 108 | |
| 109 | /* Read the histogram from file IFP. FILENAME is the name of IFP and |
| 110 | is provided for formatting error messages only. */ |
| 111 | |
| 112 | void |
| 113 | DEFUN (hist_read_rec, (ifp, filename), FILE * ifp AND const char *filename) |
| 114 | { |
| 115 | struct gmon_hist_hdr hdr; |
| 116 | bfd_vma n_lowpc, n_highpc; |
| 117 | int i, ncnt, profrate; |
| 118 | UNIT count; |
| 119 | |
| 120 | if (fread (&hdr, sizeof (hdr), 1, ifp) != 1) |
| 121 | { |
| 122 | fprintf (stderr, _("%s: %s: unexpected end of file\n"), |
| 123 | whoami, filename); |
| 124 | done (1); |
| 125 | } |
| 126 | |
| 127 | n_lowpc = (bfd_vma) get_vma (core_bfd, (bfd_byte *) hdr.low_pc); |
| 128 | n_highpc = (bfd_vma) get_vma (core_bfd, (bfd_byte *) hdr.high_pc); |
| 129 | ncnt = bfd_get_32 (core_bfd, (bfd_byte *) hdr.hist_size); |
| 130 | profrate = bfd_get_32 (core_bfd, (bfd_byte *) hdr.prof_rate); |
| 131 | strncpy (hist_dimension, hdr.dimen, sizeof (hdr.dimen)); |
| 132 | hist_dimension[sizeof (hdr.dimen)] = '\0'; |
| 133 | hist_dimension_abbrev = hdr.dimen_abbrev; |
| 134 | |
| 135 | if (!s_highpc) |
| 136 | { |
| 137 | /* This is the first histogram record. */ |
| 138 | s_lowpc = n_lowpc; |
| 139 | s_highpc = n_highpc; |
| 140 | lowpc = (bfd_vma) n_lowpc / sizeof (UNIT); |
| 141 | highpc = (bfd_vma) n_highpc / sizeof (UNIT); |
| 142 | hist_num_bins = ncnt; |
| 143 | hz = profrate; |
| 144 | } |
| 145 | |
| 146 | DBG (SAMPLEDEBUG, |
| 147 | printf ("[hist_read_rec] n_lowpc 0x%lx n_highpc 0x%lx ncnt %d\n", |
| 148 | (unsigned long) n_lowpc, (unsigned long) n_highpc, ncnt); |
| 149 | printf ("[hist_read_rec] s_lowpc 0x%lx s_highpc 0x%lx nsamples %d\n", |
| 150 | (unsigned long) s_lowpc, (unsigned long) s_highpc, |
| 151 | hist_num_bins); |
| 152 | printf ("[hist_read_rec] lowpc 0x%lx highpc 0x%lx\n", |
| 153 | (unsigned long) lowpc, (unsigned long) highpc)); |
| 154 | |
| 155 | if (n_lowpc != s_lowpc || n_highpc != s_highpc |
| 156 | || ncnt != hist_num_bins || hz != profrate) |
| 157 | { |
| 158 | fprintf (stderr, _("%s: `%s' is incompatible with first gmon file\n"), |
| 159 | whoami, filename); |
| 160 | done (1); |
| 161 | } |
| 162 | |
| 163 | if (!hist_sample) |
| 164 | { |
| 165 | hist_sample = (int *) xmalloc (hist_num_bins * sizeof (hist_sample[0])); |
| 166 | memset (hist_sample, 0, hist_num_bins * sizeof (hist_sample[0])); |
| 167 | } |
| 168 | |
| 169 | for (i = 0; i < hist_num_bins; ++i) |
| 170 | { |
| 171 | if (fread (&count[0], sizeof (count), 1, ifp) != 1) |
| 172 | { |
| 173 | fprintf (stderr, |
| 174 | _("%s: %s: unexpected EOF after reading %d of %d samples\n"), |
| 175 | whoami, filename, i, hist_num_bins); |
| 176 | done (1); |
| 177 | } |
| 178 | hist_sample[i] += bfd_get_16 (core_bfd, (bfd_byte *) & count[0]); |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | |
| 183 | /* Write execution histogram to file OFP. FILENAME is the name |
| 184 | of OFP and is provided for formatting error-messages only. */ |
| 185 | |
| 186 | void |
| 187 | DEFUN (hist_write_hist, (ofp, filename), FILE * ofp AND const char *filename) |
| 188 | { |
| 189 | struct gmon_hist_hdr hdr; |
| 190 | unsigned char tag; |
| 191 | UNIT count; |
| 192 | int i; |
| 193 | |
| 194 | /* Write header. */ |
| 195 | |
| 196 | tag = GMON_TAG_TIME_HIST; |
| 197 | put_vma (core_bfd, s_lowpc, (bfd_byte *) hdr.low_pc); |
| 198 | put_vma (core_bfd, s_highpc, (bfd_byte *) hdr.high_pc); |
| 199 | bfd_put_32 (core_bfd, hist_num_bins, (bfd_byte *) hdr.hist_size); |
| 200 | bfd_put_32 (core_bfd, hz, (bfd_byte *) hdr.prof_rate); |
| 201 | strncpy (hdr.dimen, hist_dimension, sizeof (hdr.dimen)); |
| 202 | hdr.dimen_abbrev = hist_dimension_abbrev; |
| 203 | |
| 204 | if (fwrite (&tag, sizeof (tag), 1, ofp) != 1 |
| 205 | || fwrite (&hdr, sizeof (hdr), 1, ofp) != 1) |
| 206 | { |
| 207 | perror (filename); |
| 208 | done (1); |
| 209 | } |
| 210 | |
| 211 | for (i = 0; i < hist_num_bins; ++i) |
| 212 | { |
| 213 | bfd_put_16 (core_bfd, hist_sample[i], (bfd_byte *) & count[0]); |
| 214 | |
| 215 | if (fwrite (&count[0], sizeof (count), 1, ofp) != 1) |
| 216 | { |
| 217 | perror (filename); |
| 218 | done (1); |
| 219 | } |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | |
| 224 | /* Calculate scaled entry point addresses (to save time in |
| 225 | hist_assign_samples), and, on architectures that have procedure |
| 226 | entry masks at the start of a function, possibly push the scaled |
| 227 | entry points over the procedure entry mask, if it turns out that |
| 228 | the entry point is in one bin and the code for a routine is in the |
| 229 | next bin. */ |
| 230 | |
| 231 | static void |
| 232 | scale_and_align_entries () |
| 233 | { |
| 234 | Sym *sym; |
| 235 | bfd_vma bin_of_entry; |
| 236 | bfd_vma bin_of_code; |
| 237 | |
| 238 | for (sym = symtab.base; sym < symtab.limit; sym++) |
| 239 | { |
| 240 | sym->hist.scaled_addr = sym->addr / sizeof (UNIT); |
| 241 | bin_of_entry = (sym->hist.scaled_addr - lowpc) / hist_scale; |
| 242 | bin_of_code = (sym->hist.scaled_addr + UNITS_TO_CODE - lowpc) / hist_scale; |
| 243 | if (bin_of_entry < bin_of_code) |
| 244 | { |
| 245 | DBG (SAMPLEDEBUG, |
| 246 | printf ("[scale_and_align_entries] pushing 0x%lx to 0x%lx\n", |
| 247 | (unsigned long) sym->hist.scaled_addr, |
| 248 | (unsigned long) (sym->hist.scaled_addr |
| 249 | + UNITS_TO_CODE))); |
| 250 | sym->hist.scaled_addr += UNITS_TO_CODE; |
| 251 | } |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | |
| 256 | /* Assign samples to the symbol to which they belong. |
| 257 | |
| 258 | Histogram bin I covers some address range [BIN_LOWPC,BIN_HIGH_PC) |
| 259 | which may overlap one more symbol address ranges. If a symbol |
| 260 | overlaps with the bin's address range by O percent, then O percent |
| 261 | of the bin's count is credited to that symbol. |
| 262 | |
| 263 | There are three cases as to where BIN_LOW_PC and BIN_HIGH_PC can be |
| 264 | with respect to the symbol's address range [SYM_LOW_PC, |
| 265 | SYM_HIGH_PC) as shown in the following diagram. OVERLAP computes |
| 266 | the distance (in UNITs) between the arrows, the fraction of the |
| 267 | sample that is to be credited to the symbol which starts at |
| 268 | SYM_LOW_PC. |
| 269 | |
| 270 | sym_low_pc sym_high_pc |
| 271 | | | |
| 272 | v v |
| 273 | |
| 274 | +-----------------------------------------------+ |
| 275 | | | |
| 276 | | ->| |<- ->| |<- ->| |<- | |
| 277 | | | | | | | |
| 278 | +---------+ +---------+ +---------+ |
| 279 | |
| 280 | ^ ^ ^ ^ ^ ^ |
| 281 | | | | | | | |
| 282 | bin_low_pc bin_high_pc bin_low_pc bin_high_pc bin_low_pc bin_high_pc |
| 283 | |
| 284 | For the VAX we assert that samples will never fall in the first two |
| 285 | bytes of any routine, since that is the entry mask, thus we call |
| 286 | scale_and_align_entries() to adjust the entry points if the entry |
| 287 | mask falls in one bin but the code for the routine doesn't start |
| 288 | until the next bin. In conjunction with the alignment of routine |
| 289 | addresses, this should allow us to have only one sample for every |
| 290 | four bytes of text space and never have any overlap (the two end |
| 291 | cases, above). */ |
| 292 | |
| 293 | void |
| 294 | DEFUN_VOID (hist_assign_samples) |
| 295 | { |
| 296 | bfd_vma bin_low_pc, bin_high_pc; |
| 297 | bfd_vma sym_low_pc, sym_high_pc; |
| 298 | bfd_vma overlap, addr; |
| 299 | int bin_count, i; |
| 300 | unsigned int j; |
| 301 | double time, credit; |
| 302 | |
| 303 | /* Read samples and assign to symbols. */ |
| 304 | hist_scale = highpc - lowpc; |
| 305 | hist_scale /= hist_num_bins; |
| 306 | scale_and_align_entries (); |
| 307 | |
| 308 | /* Iterate over all sample bins. */ |
| 309 | for (i = 0, j = 1; i < hist_num_bins; ++i) |
| 310 | { |
| 311 | bin_count = hist_sample[i]; |
| 312 | if (! bin_count) |
| 313 | continue; |
| 314 | |
| 315 | bin_low_pc = lowpc + (bfd_vma) (hist_scale * i); |
| 316 | bin_high_pc = lowpc + (bfd_vma) (hist_scale * (i + 1)); |
| 317 | time = bin_count; |
| 318 | |
| 319 | DBG (SAMPLEDEBUG, |
| 320 | printf ( |
| 321 | "[assign_samples] bin_low_pc=0x%lx, bin_high_pc=0x%lx, bin_count=%d\n", |
| 322 | (unsigned long) (sizeof (UNIT) * bin_low_pc), |
| 323 | (unsigned long) (sizeof (UNIT) * bin_high_pc), |
| 324 | bin_count)); |
| 325 | total_time += time; |
| 326 | |
| 327 | /* Credit all symbols that are covered by bin I. */ |
| 328 | for (j = j - 1; j < symtab.len; ++j) |
| 329 | { |
| 330 | sym_low_pc = symtab.base[j].hist.scaled_addr; |
| 331 | sym_high_pc = symtab.base[j + 1].hist.scaled_addr; |
| 332 | |
| 333 | /* If high end of bin is below entry address, |
| 334 | go for next bin. */ |
| 335 | if (bin_high_pc < sym_low_pc) |
| 336 | break; |
| 337 | |
| 338 | /* If low end of bin is above high end of symbol, |
| 339 | go for next symbol. */ |
| 340 | if (bin_low_pc >= sym_high_pc) |
| 341 | continue; |
| 342 | |
| 343 | overlap = |
| 344 | MIN (bin_high_pc, sym_high_pc) - MAX (bin_low_pc, sym_low_pc); |
| 345 | if (overlap > 0) |
| 346 | { |
| 347 | DBG (SAMPLEDEBUG, |
| 348 | printf ( |
| 349 | "[assign_samples] [0x%lx,0x%lx) %s gets %f ticks %ld overlap\n", |
| 350 | (unsigned long) symtab.base[j].addr, |
| 351 | (unsigned long) (sizeof (UNIT) * sym_high_pc), |
| 352 | symtab.base[j].name, overlap * time / hist_scale, |
| 353 | (long) overlap)); |
| 354 | |
| 355 | addr = symtab.base[j].addr; |
| 356 | credit = overlap * time / hist_scale; |
| 357 | |
| 358 | /* Credit symbol if it appears in INCL_FLAT or that |
| 359 | table is empty and it does not appear it in |
| 360 | EXCL_FLAT. */ |
| 361 | if (sym_lookup (&syms[INCL_FLAT], addr) |
| 362 | || (syms[INCL_FLAT].len == 0 |
| 363 | && !sym_lookup (&syms[EXCL_FLAT], addr))) |
| 364 | { |
| 365 | symtab.base[j].hist.time += credit; |
| 366 | } |
| 367 | else |
| 368 | { |
| 369 | total_time -= credit; |
| 370 | } |
| 371 | } |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | DBG (SAMPLEDEBUG, printf ("[assign_samples] total_time %f\n", |
| 376 | total_time)); |
| 377 | } |
| 378 | |
| 379 | |
| 380 | /* Print header for flag histogram profile. */ |
| 381 | |
| 382 | static void |
| 383 | DEFUN (print_header, (prefix), const char prefix) |
| 384 | { |
| 385 | char unit[64]; |
| 386 | |
| 387 | sprintf (unit, _("%c%c/call"), prefix, hist_dimension_abbrev); |
| 388 | |
| 389 | if (bsd_style_output) |
| 390 | { |
| 391 | printf (_("\ngranularity: each sample hit covers %ld byte(s)"), |
| 392 | (long) hist_scale * sizeof (UNIT)); |
| 393 | if (total_time > 0.0) |
| 394 | { |
| 395 | printf (_(" for %.2f%% of %.2f %s\n\n"), |
| 396 | 100.0 / total_time, total_time / hz, hist_dimension); |
| 397 | } |
| 398 | } |
| 399 | else |
| 400 | { |
| 401 | printf (_("\nEach sample counts as %g %s.\n"), 1.0 / hz, hist_dimension); |
| 402 | } |
| 403 | |
| 404 | if (total_time <= 0.0) |
| 405 | { |
| 406 | printf (_(" no time accumulated\n\n")); |
| 407 | |
| 408 | /* This doesn't hurt since all the numerators will be zero. */ |
| 409 | total_time = 1.0; |
| 410 | } |
| 411 | |
| 412 | printf ("%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", |
| 413 | "% ", _("cumulative"), _("self "), "", _("self "), _("total "), ""); |
| 414 | printf ("%5.5s %9.9s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", |
| 415 | _("time"), hist_dimension, hist_dimension, _("calls"), unit, unit, |
| 416 | _("name")); |
| 417 | } |
| 418 | |
| 419 | |
| 420 | static void |
| 421 | DEFUN (print_line, (sym, scale), Sym * sym AND double scale) |
| 422 | { |
| 423 | if (ignore_zeros && sym->ncalls == 0 && sym->hist.time == 0) |
| 424 | return; |
| 425 | |
| 426 | accum_time += sym->hist.time; |
| 427 | |
| 428 | if (bsd_style_output) |
| 429 | printf ("%5.1f %10.2f %8.2f", |
| 430 | total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, |
| 431 | accum_time / hz, sym->hist.time / hz); |
| 432 | else |
| 433 | printf ("%6.2f %9.2f %8.2f", |
| 434 | total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, |
| 435 | accum_time / hz, sym->hist.time / hz); |
| 436 | |
| 437 | if (sym->ncalls != 0) |
| 438 | printf (" %8lu %8.2f %8.2f ", |
| 439 | sym->ncalls, scale * sym->hist.time / hz / sym->ncalls, |
| 440 | scale * (sym->hist.time + sym->cg.child_time) / hz / sym->ncalls); |
| 441 | else |
| 442 | printf (" %8.8s %8.8s %8.8s ", "", "", ""); |
| 443 | |
| 444 | if (bsd_style_output) |
| 445 | print_name (sym); |
| 446 | else |
| 447 | print_name_only (sym); |
| 448 | |
| 449 | printf ("\n"); |
| 450 | } |
| 451 | |
| 452 | |
| 453 | /* Compare LP and RP. The primary comparison key is execution time, |
| 454 | the secondary is number of invocation, and the tertiary is the |
| 455 | lexicographic order of the function names. */ |
| 456 | |
| 457 | static int |
| 458 | DEFUN (cmp_time, (lp, rp), const PTR lp AND const PTR rp) |
| 459 | { |
| 460 | const Sym *left = *(const Sym **) lp; |
| 461 | const Sym *right = *(const Sym **) rp; |
| 462 | double time_diff; |
| 463 | |
| 464 | time_diff = right->hist.time - left->hist.time; |
| 465 | |
| 466 | if (time_diff > 0.0) |
| 467 | return 1; |
| 468 | |
| 469 | if (time_diff < 0.0) |
| 470 | return -1; |
| 471 | |
| 472 | if (right->ncalls > left->ncalls) |
| 473 | return 1; |
| 474 | |
| 475 | if (right->ncalls < left->ncalls) |
| 476 | return -1; |
| 477 | |
| 478 | return strcmp (left->name, right->name); |
| 479 | } |
| 480 | |
| 481 | |
| 482 | /* Print the flat histogram profile. */ |
| 483 | |
| 484 | void |
| 485 | DEFUN_VOID (hist_print) |
| 486 | { |
| 487 | Sym **time_sorted_syms, *top_dog, *sym; |
| 488 | unsigned int index; |
| 489 | int log_scale; |
| 490 | double top_time, time; |
| 491 | bfd_vma addr; |
| 492 | |
| 493 | if (first_output) |
| 494 | first_output = FALSE; |
| 495 | else |
| 496 | printf ("\f\n"); |
| 497 | |
| 498 | accum_time = 0.0; |
| 499 | |
| 500 | if (bsd_style_output) |
| 501 | { |
| 502 | if (print_descriptions) |
| 503 | { |
| 504 | printf (_("\n\n\nflat profile:\n")); |
| 505 | flat_blurb (stdout); |
| 506 | } |
| 507 | } |
| 508 | else |
| 509 | { |
| 510 | printf (_("Flat profile:\n")); |
| 511 | } |
| 512 | |
| 513 | /* Sort the symbol table by time (call-count and name as secondary |
| 514 | and tertiary keys). */ |
| 515 | time_sorted_syms = (Sym **) xmalloc (symtab.len * sizeof (Sym *)); |
| 516 | |
| 517 | for (index = 0; index < symtab.len; ++index) |
| 518 | time_sorted_syms[index] = &symtab.base[index]; |
| 519 | |
| 520 | qsort (time_sorted_syms, symtab.len, sizeof (Sym *), cmp_time); |
| 521 | |
| 522 | if (bsd_style_output) |
| 523 | { |
| 524 | log_scale = 5; /* Milli-seconds is BSD-default. */ |
| 525 | } |
| 526 | else |
| 527 | { |
| 528 | /* Search for symbol with highest per-call |
| 529 | execution time and scale accordingly. */ |
| 530 | log_scale = 0; |
| 531 | top_dog = 0; |
| 532 | top_time = 0.0; |
| 533 | |
| 534 | for (index = 0; index < symtab.len; ++index) |
| 535 | { |
| 536 | sym = time_sorted_syms[index]; |
| 537 | |
| 538 | if (sym->ncalls != 0) |
| 539 | { |
| 540 | time = (sym->hist.time + sym->cg.child_time) / sym->ncalls; |
| 541 | |
| 542 | if (time > top_time) |
| 543 | { |
| 544 | top_dog = sym; |
| 545 | top_time = time; |
| 546 | } |
| 547 | } |
| 548 | } |
| 549 | |
| 550 | if (top_dog && top_dog->ncalls != 0 && top_time > 0.0) |
| 551 | { |
| 552 | top_time /= hz; |
| 553 | |
| 554 | while (SItab[log_scale].scale * top_time < 1000.0 |
| 555 | && ((size_t) log_scale |
| 556 | < sizeof (SItab) / sizeof (SItab[0]) - 1)) |
| 557 | { |
| 558 | ++log_scale; |
| 559 | } |
| 560 | } |
| 561 | } |
| 562 | |
| 563 | /* For now, the dimension is always seconds. In the future, we |
| 564 | may also want to support other (pseudo-)dimensions (such as |
| 565 | I-cache misses etc.). */ |
| 566 | print_header (SItab[log_scale].prefix); |
| 567 | |
| 568 | for (index = 0; index < symtab.len; ++index) |
| 569 | { |
| 570 | addr = time_sorted_syms[index]->addr; |
| 571 | |
| 572 | /* Print symbol if its in INCL_FLAT table or that table |
| 573 | is empty and the symbol is not in EXCL_FLAT. */ |
| 574 | if (sym_lookup (&syms[INCL_FLAT], addr) |
| 575 | || (syms[INCL_FLAT].len == 0 |
| 576 | && !sym_lookup (&syms[EXCL_FLAT], addr))) |
| 577 | print_line (time_sorted_syms[index], SItab[log_scale].scale); |
| 578 | } |
| 579 | |
| 580 | free (time_sorted_syms); |
| 581 | |
| 582 | if (print_descriptions && !bsd_style_output) |
| 583 | flat_blurb (stdout); |
| 584 | } |