| 1 | /* |
| 2 | * Histogram related operations. |
| 3 | */ |
| 4 | #include <stdio.h> |
| 5 | #include "libiberty.h" |
| 6 | #include "gprof.h" |
| 7 | #include "core.h" |
| 8 | #include "gmon_io.h" |
| 9 | #include "gmon_out.h" |
| 10 | #include "hist.h" |
| 11 | #include "symtab.h" |
| 12 | #include "sym_ids.h" |
| 13 | #include "utils.h" |
| 14 | |
| 15 | /* declarations of automatically generated functions to output blurbs: */ |
| 16 | extern void flat_blurb PARAMS ((FILE * fp)); |
| 17 | |
| 18 | bfd_vma s_lowpc; /* lowest address in .text */ |
| 19 | bfd_vma s_highpc = 0; /* highest address in .text */ |
| 20 | bfd_vma lowpc, highpc; /* same, but expressed in UNITs */ |
| 21 | int hist_num_bins = 0; /* number of histogram samples */ |
| 22 | int *hist_sample = 0; /* histogram samples (shorts in the file!) */ |
| 23 | double hist_scale; |
| 24 | char hist_dimension[sizeof (((struct gmon_hist_hdr *) 0)->dimen) + 1] = |
| 25 | "seconds"; |
| 26 | char hist_dimension_abbrev = 's'; |
| 27 | |
| 28 | static double accum_time; /* accumulated time so far for print_line() */ |
| 29 | static double total_time; /* total time for all routines */ |
| 30 | /* |
| 31 | * Table of SI prefixes for powers of 10 (used to automatically |
| 32 | * scale some of the values in the flat profile). |
| 33 | */ |
| 34 | const struct |
| 35 | { |
| 36 | char prefix; |
| 37 | double scale; |
| 38 | } |
| 39 | SItab[] = |
| 40 | { |
| 41 | { |
| 42 | 'T', 1e-12 |
| 43 | } |
| 44 | , /* tera */ |
| 45 | { |
| 46 | 'G', 1e-09 |
| 47 | } |
| 48 | , /* giga */ |
| 49 | { |
| 50 | 'M', 1e-06 |
| 51 | } |
| 52 | , /* mega */ |
| 53 | { |
| 54 | 'K', 1e-03 |
| 55 | } |
| 56 | , /* kilo */ |
| 57 | { |
| 58 | ' ', 1e-00 |
| 59 | } |
| 60 | , |
| 61 | { |
| 62 | 'm', 1e+03 |
| 63 | } |
| 64 | , /* milli */ |
| 65 | { |
| 66 | 'u', 1e+06 |
| 67 | } |
| 68 | , /* micro */ |
| 69 | { |
| 70 | 'n', 1e+09 |
| 71 | } |
| 72 | , /* nano */ |
| 73 | { |
| 74 | 'p', 1e+12 |
| 75 | } |
| 76 | , /* pico */ |
| 77 | { |
| 78 | 'f', 1e+15 |
| 79 | } |
| 80 | , /* femto */ |
| 81 | { |
| 82 | 'a', 1e+18 |
| 83 | } |
| 84 | , /* ato */ |
| 85 | }; |
| 86 | |
| 87 | /* |
| 88 | * Read the histogram from file IFP. FILENAME is the name of IFP and |
| 89 | * is provided for formatting error messages only. |
| 90 | */ |
| 91 | void |
| 92 | DEFUN (hist_read_rec, (ifp, filename), FILE * ifp AND const char *filename) |
| 93 | { |
| 94 | struct gmon_hist_hdr hdr; |
| 95 | bfd_vma n_lowpc, n_highpc; |
| 96 | int i, ncnt, profrate; |
| 97 | UNIT count; |
| 98 | |
| 99 | if (fread (&hdr, sizeof (hdr), 1, ifp) != 1) |
| 100 | { |
| 101 | fprintf (stderr, "%s: %s: unexpected end of file\n", |
| 102 | whoami, filename); |
| 103 | done (1); |
| 104 | } |
| 105 | |
| 106 | n_lowpc = (bfd_vma) get_vma (core_bfd, (bfd_byte *) hdr.low_pc); |
| 107 | n_highpc = (bfd_vma) get_vma (core_bfd, (bfd_byte *) hdr.high_pc); |
| 108 | ncnt = bfd_get_32 (core_bfd, (bfd_byte *) hdr.hist_size); |
| 109 | profrate = bfd_get_32 (core_bfd, (bfd_byte *) hdr.prof_rate); |
| 110 | strncpy (hist_dimension, hdr.dimen, sizeof (hdr.dimen)); |
| 111 | hist_dimension[sizeof (hdr.dimen)] = '\0'; |
| 112 | hist_dimension_abbrev = hdr.dimen_abbrev; |
| 113 | |
| 114 | if (!s_highpc) |
| 115 | { |
| 116 | |
| 117 | /* this is the first histogram record: */ |
| 118 | |
| 119 | s_lowpc = n_lowpc; |
| 120 | s_highpc = n_highpc; |
| 121 | lowpc = (bfd_vma) n_lowpc / sizeof (UNIT); |
| 122 | highpc = (bfd_vma) n_highpc / sizeof (UNIT); |
| 123 | hist_num_bins = ncnt; |
| 124 | hz = profrate; |
| 125 | } |
| 126 | |
| 127 | DBG (SAMPLEDEBUG, |
| 128 | printf ("[hist_read_rec] n_lowpc 0x%lx n_highpc 0x%lx ncnt %d\n", |
| 129 | n_lowpc, n_highpc, ncnt); |
| 130 | printf ("[hist_read_rec] s_lowpc 0x%lx s_highpc 0x%lx nsamples %d\n", |
| 131 | s_lowpc, s_highpc, hist_num_bins); |
| 132 | printf ("[hist_read_rec] lowpc 0x%lx highpc 0x%lx\n", |
| 133 | lowpc, highpc)); |
| 134 | |
| 135 | if (n_lowpc != s_lowpc || n_highpc != s_highpc |
| 136 | || ncnt != hist_num_bins || hz != profrate) |
| 137 | { |
| 138 | fprintf (stderr, "%s: `%s' is incompatible with first gmon file\n", |
| 139 | whoami, filename); |
| 140 | done (1); |
| 141 | } |
| 142 | |
| 143 | if (!hist_sample) |
| 144 | { |
| 145 | hist_sample = (int *) xmalloc (hist_num_bins * sizeof (hist_sample[0])); |
| 146 | memset (hist_sample, 0, hist_num_bins * sizeof (hist_sample[0])); |
| 147 | } |
| 148 | |
| 149 | for (i = 0; i < hist_num_bins; ++i) |
| 150 | { |
| 151 | if (fread (&count[0], sizeof (count), 1, ifp) != 1) |
| 152 | { |
| 153 | fprintf (stderr, |
| 154 | "%s: %s: unexpected EOF after reading %d of %d samples\n", |
| 155 | whoami, filename, i, hist_num_bins); |
| 156 | done (1); |
| 157 | } |
| 158 | hist_sample[i] += bfd_get_16 (core_bfd, (bfd_byte *) & count[0]); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | |
| 163 | /* |
| 164 | * Write execution histogram to file OFP. FILENAME is the name |
| 165 | * of OFP and is provided for formatting error-messages only. |
| 166 | */ |
| 167 | void |
| 168 | DEFUN (hist_write_hist, (ofp, filename), FILE * ofp AND const char *filename) |
| 169 | { |
| 170 | struct gmon_hist_hdr hdr; |
| 171 | unsigned char tag; |
| 172 | UNIT count; |
| 173 | int i; |
| 174 | |
| 175 | /* write header: */ |
| 176 | |
| 177 | tag = GMON_TAG_TIME_HIST; |
| 178 | put_vma (core_bfd, s_lowpc, (bfd_byte *) hdr.low_pc); |
| 179 | put_vma (core_bfd, s_highpc, (bfd_byte *) hdr.high_pc); |
| 180 | bfd_put_32 (core_bfd, hist_num_bins, (bfd_byte *) hdr.hist_size); |
| 181 | bfd_put_32 (core_bfd, hz, (bfd_byte *) hdr.prof_rate); |
| 182 | strncpy (hdr.dimen, hist_dimension, sizeof (hdr.dimen)); |
| 183 | hdr.dimen_abbrev = hist_dimension_abbrev; |
| 184 | |
| 185 | if (fwrite (&tag, sizeof (tag), 1, ofp) != 1 |
| 186 | || fwrite (&hdr, sizeof (hdr), 1, ofp) != 1) |
| 187 | { |
| 188 | perror (filename); |
| 189 | done (1); |
| 190 | } |
| 191 | |
| 192 | for (i = 0; i < hist_num_bins; ++i) |
| 193 | { |
| 194 | bfd_put_16 (core_bfd, hist_sample[i], (bfd_byte *) & count[0]); |
| 195 | if (fwrite (&count[0], sizeof (count), 1, ofp) != 1) |
| 196 | { |
| 197 | perror (filename); |
| 198 | done (1); |
| 199 | } |
| 200 | } |
| 201 | } |
| 202 | |
| 203 | |
| 204 | /* |
| 205 | * Calculate scaled entry point addresses (to save time in |
| 206 | * hist_assign_samples), and, on architectures that have procedure |
| 207 | * entry masks at the start of a function, possibly push the scaled |
| 208 | * entry points over the procedure entry mask, if it turns out that |
| 209 | * the entry point is in one bin and the code for a routine is in the |
| 210 | * next bin. |
| 211 | */ |
| 212 | static void |
| 213 | DEFUN_VOID (scale_and_align_entries) |
| 214 | { |
| 215 | Sym *sym; |
| 216 | #if OFFSET_TO_CODE > 0 |
| 217 | bfd_vma bin_of_entry; |
| 218 | bfd_vma bin_of_code; |
| 219 | #endif |
| 220 | |
| 221 | for (sym = symtab.base; sym < symtab.limit; sym++) |
| 222 | { |
| 223 | sym->hist.scaled_addr = sym->addr / sizeof (UNIT); |
| 224 | #if OFFSET_TO_CODE > 0 |
| 225 | bin_of_entry = (sym->hist.scaled_addr - lowpc) / hist_scale; |
| 226 | bin_of_code = (sym->hist.scaled_addr + UNITS_TO_CODE - lowpc) / hist_scale; |
| 227 | if (bin_of_entry < bin_of_code) |
| 228 | { |
| 229 | DBG (SAMPLEDEBUG, |
| 230 | printf ("[scale_and_align_entries] pushing 0x%lx to 0x%lx\n", |
| 231 | sym->hist.scaled_addr, sym->aligned_addr + UNITS_TO_CODE)); |
| 232 | sym->aligned_addr += UNITS_TO_CODE; |
| 233 | } |
| 234 | #endif /* OFFSET_TO_CODE > 0 */ |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | |
| 239 | /* |
| 240 | * Assign samples to the symbol to which they belong. |
| 241 | * |
| 242 | * Histogram bin I covers some address range [BIN_LOWPC,BIN_HIGH_PC) |
| 243 | * which may overlap one more symbol address ranges. If a symbol |
| 244 | * overlaps with the bin's address range by O percent, then O percent |
| 245 | * of the bin's count is credited to that symbol. |
| 246 | * |
| 247 | * There are three cases as to where BIN_LOW_PC and BIN_HIGH_PC can be |
| 248 | * with respect to the symbol's address range [SYM_LOW_PC, |
| 249 | * SYM_HIGH_PC) as shown in the following diagram. OVERLAP computes |
| 250 | * the distance (in UNITs) between the arrows, the fraction of the |
| 251 | * sample that is to be credited to the symbol which starts at |
| 252 | * SYM_LOW_PC. |
| 253 | * |
| 254 | * sym_low_pc sym_high_pc |
| 255 | * | | |
| 256 | * v v |
| 257 | * |
| 258 | * +-----------------------------------------------+ |
| 259 | * | | |
| 260 | * | ->| |<- ->| |<- ->| |<- | |
| 261 | * | | | | | | |
| 262 | * +---------+ +---------+ +---------+ |
| 263 | * |
| 264 | * ^ ^ ^ ^ ^ ^ |
| 265 | * | | | | | | |
| 266 | * bin_low_pc bin_high_pc bin_low_pc bin_high_pc bin_low_pc bin_high_pc |
| 267 | * |
| 268 | * For the VAX we assert that samples will never fall in the first two |
| 269 | * bytes of any routine, since that is the entry mask, thus we call |
| 270 | * scale_and_align_entries() to adjust the entry points if the entry |
| 271 | * mask falls in one bin but the code for the routine doesn't start |
| 272 | * until the next bin. In conjunction with the alignment of routine |
| 273 | * addresses, this should allow us to have only one sample for every |
| 274 | * four bytes of text space and never have any overlap (the two end |
| 275 | * cases, above). |
| 276 | */ |
| 277 | void |
| 278 | DEFUN_VOID (hist_assign_samples) |
| 279 | { |
| 280 | bfd_vma bin_low_pc, bin_high_pc; |
| 281 | bfd_vma sym_low_pc, sym_high_pc; |
| 282 | bfd_vma overlap, addr; |
| 283 | int bin_count, i, j; |
| 284 | double time, credit; |
| 285 | |
| 286 | /* read samples and assign to symbols: */ |
| 287 | hist_scale = highpc - lowpc; |
| 288 | hist_scale /= hist_num_bins; |
| 289 | scale_and_align_entries (); |
| 290 | |
| 291 | /* iterate over all sample bins: */ |
| 292 | |
| 293 | for (i = 0, j = 1; i < hist_num_bins; ++i) |
| 294 | { |
| 295 | bin_count = hist_sample[i]; |
| 296 | if (!bin_count) |
| 297 | { |
| 298 | continue; |
| 299 | } |
| 300 | bin_low_pc = lowpc + (bfd_vma) (hist_scale * i); |
| 301 | bin_high_pc = lowpc + (bfd_vma) (hist_scale * (i + 1)); |
| 302 | time = bin_count; |
| 303 | DBG (SAMPLEDEBUG, |
| 304 | printf ( |
| 305 | "[assign_samples] bin_low_pc=0x%lx, bin_high_pc=0x%lx, bin_count=%d\n", |
| 306 | sizeof (UNIT) * bin_low_pc, sizeof (UNIT) * bin_high_pc, |
| 307 | bin_count)); |
| 308 | total_time += time; |
| 309 | |
| 310 | /* credit all symbols that are covered by bin I: */ |
| 311 | |
| 312 | for (j = j - 1; j < symtab.len; ++j) |
| 313 | { |
| 314 | sym_low_pc = symtab.base[j].hist.scaled_addr; |
| 315 | sym_high_pc = symtab.base[j + 1].hist.scaled_addr; |
| 316 | /* |
| 317 | * If high end of bin is below entry address, go for next |
| 318 | * bin: |
| 319 | */ |
| 320 | if (bin_high_pc < sym_low_pc) |
| 321 | { |
| 322 | break; |
| 323 | } |
| 324 | /* |
| 325 | * If low end of bin is above high end of symbol, go for |
| 326 | * next symbol. |
| 327 | */ |
| 328 | if (bin_low_pc >= sym_high_pc) |
| 329 | { |
| 330 | continue; |
| 331 | } |
| 332 | overlap = |
| 333 | MIN (bin_high_pc, sym_high_pc) - MAX (bin_low_pc, sym_low_pc); |
| 334 | if (overlap > 0) |
| 335 | { |
| 336 | DBG (SAMPLEDEBUG, |
| 337 | printf ( |
| 338 | "[assign_samples] [0x%lx,0x%lx) %s gets %f ticks %ld overlap\n", |
| 339 | symtab.base[j].addr, sizeof (UNIT) * sym_high_pc, |
| 340 | symtab.base[j].name, overlap * time / hist_scale, |
| 341 | overlap)); |
| 342 | addr = symtab.base[j].addr; |
| 343 | credit = overlap * time / hist_scale; |
| 344 | /* |
| 345 | * Credit symbol if it appears in INCL_FLAT or that |
| 346 | * table is empty and it does not appear it in |
| 347 | * EXCL_FLAT. |
| 348 | */ |
| 349 | if (sym_lookup (&syms[INCL_FLAT], addr) |
| 350 | || (syms[INCL_FLAT].len == 0 |
| 351 | && !sym_lookup (&syms[EXCL_FLAT], addr))) |
| 352 | { |
| 353 | symtab.base[j].hist.time += credit; |
| 354 | } |
| 355 | else |
| 356 | { |
| 357 | total_time -= credit; |
| 358 | } |
| 359 | } |
| 360 | } |
| 361 | } |
| 362 | DBG (SAMPLEDEBUG, printf ("[assign_samples] total_time %f\n", |
| 363 | total_time)); |
| 364 | } |
| 365 | |
| 366 | |
| 367 | /* |
| 368 | * Print header for flag histogram profile: |
| 369 | */ |
| 370 | static void |
| 371 | DEFUN (print_header, (prefix), const char prefix) |
| 372 | { |
| 373 | char unit[64]; |
| 374 | |
| 375 | sprintf (unit, "%c%c/call", prefix, hist_dimension_abbrev); |
| 376 | |
| 377 | if (bsd_style_output) |
| 378 | { |
| 379 | printf ("\ngranularity: each sample hit covers %ld byte(s)", |
| 380 | (long) hist_scale * sizeof (UNIT)); |
| 381 | if (total_time > 0.0) |
| 382 | { |
| 383 | printf (" for %.2f%% of %.2f %s\n\n", |
| 384 | 100.0 / total_time, total_time / hz, hist_dimension); |
| 385 | } |
| 386 | } |
| 387 | else |
| 388 | { |
| 389 | printf ("\nEach sample counts as %g %s.\n", 1.0 / hz, hist_dimension); |
| 390 | } |
| 391 | |
| 392 | if (total_time <= 0.0) |
| 393 | { |
| 394 | printf (" no time accumulated\n\n"); |
| 395 | /* this doesn't hurt since all the numerators will be zero: */ |
| 396 | total_time = 1.0; |
| 397 | } |
| 398 | |
| 399 | printf ("%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", |
| 400 | "% ", "cumulative", "self ", "", "self ", "total ", ""); |
| 401 | printf ("%5.5s %9.9s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", |
| 402 | "time", hist_dimension, hist_dimension, "calls", unit, unit, |
| 403 | "name"); |
| 404 | } |
| 405 | |
| 406 | |
| 407 | static void |
| 408 | DEFUN (print_line, (sym, scale), Sym * sym AND double scale) |
| 409 | { |
| 410 | if (ignore_zeros && sym->ncalls == 0 && sym->hist.time == 0) |
| 411 | { |
| 412 | return; |
| 413 | } |
| 414 | |
| 415 | accum_time += sym->hist.time; |
| 416 | if (bsd_style_output) |
| 417 | { |
| 418 | printf ("%5.1f %10.2f %8.2f", |
| 419 | total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, |
| 420 | accum_time / hz, sym->hist.time / hz); |
| 421 | } |
| 422 | else |
| 423 | { |
| 424 | printf ("%6.2f %9.2f %8.2f", |
| 425 | total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, |
| 426 | accum_time / hz, sym->hist.time / hz); |
| 427 | } |
| 428 | if (sym->ncalls) |
| 429 | { |
| 430 | printf (" %8d %8.2f %8.2f ", |
| 431 | sym->ncalls, scale * sym->hist.time / hz / sym->ncalls, |
| 432 | scale * (sym->hist.time + sym->cg.child_time) / hz / sym->ncalls); |
| 433 | } |
| 434 | else |
| 435 | { |
| 436 | printf (" %8.8s %8.8s %8.8s ", "", "", ""); |
| 437 | } |
| 438 | if (bsd_style_output) |
| 439 | { |
| 440 | print_name (sym); |
| 441 | } |
| 442 | else |
| 443 | { |
| 444 | print_name_only (sym); |
| 445 | } |
| 446 | printf ("\n"); |
| 447 | } |
| 448 | |
| 449 | |
| 450 | /* |
| 451 | * Compare LP and RP. The primary comparison key is execution time, |
| 452 | * the secondary is number of invocation, and the tertiary is the |
| 453 | * lexicographic order of the function names. |
| 454 | */ |
| 455 | static int |
| 456 | DEFUN (cmp_time, (lp, rp), const PTR lp AND const PTR rp) |
| 457 | { |
| 458 | const Sym *left = *(const Sym **) lp; |
| 459 | const Sym *right = *(const Sym **) rp; |
| 460 | double time_diff; |
| 461 | long call_diff; |
| 462 | |
| 463 | time_diff = right->hist.time - left->hist.time; |
| 464 | if (time_diff > 0.0) |
| 465 | { |
| 466 | return 1; |
| 467 | } |
| 468 | if (time_diff < 0.0) |
| 469 | { |
| 470 | return -1; |
| 471 | } |
| 472 | |
| 473 | call_diff = right->ncalls - left->ncalls; |
| 474 | if (call_diff > 0) |
| 475 | { |
| 476 | return 1; |
| 477 | } |
| 478 | if (call_diff < 0) |
| 479 | { |
| 480 | return -1; |
| 481 | } |
| 482 | |
| 483 | return strcmp (left->name, right->name); |
| 484 | } |
| 485 | |
| 486 | |
| 487 | /* |
| 488 | * Print the flat histogram profile. |
| 489 | */ |
| 490 | void |
| 491 | DEFUN_VOID (hist_print) |
| 492 | { |
| 493 | Sym **time_sorted_syms, *top_dog, *sym; |
| 494 | int index, log_scale; |
| 495 | double top_time, time; |
| 496 | bfd_vma addr; |
| 497 | |
| 498 | if (first_output) |
| 499 | { |
| 500 | first_output = FALSE; |
| 501 | } |
| 502 | else |
| 503 | { |
| 504 | printf ("\f\n"); |
| 505 | } |
| 506 | |
| 507 | accum_time = 0.0; |
| 508 | if (bsd_style_output) |
| 509 | { |
| 510 | if (print_descriptions) |
| 511 | { |
| 512 | printf ("\n\n\nflat profile:\n"); |
| 513 | flat_blurb (stdout); |
| 514 | } |
| 515 | } |
| 516 | else |
| 517 | { |
| 518 | printf ("Flat profile:\n"); |
| 519 | } |
| 520 | /* |
| 521 | * Sort the symbol table by time (call-count and name as secondary |
| 522 | * and tertiary keys): |
| 523 | */ |
| 524 | time_sorted_syms = (Sym **) xmalloc (symtab.len * sizeof (Sym *)); |
| 525 | for (index = 0; index < symtab.len; ++index) |
| 526 | { |
| 527 | time_sorted_syms[index] = &symtab.base[index]; |
| 528 | } |
| 529 | qsort (time_sorted_syms, symtab.len, sizeof (Sym *), cmp_time); |
| 530 | |
| 531 | if (bsd_style_output) |
| 532 | { |
| 533 | log_scale = 5; /* milli-seconds is BSD-default */ |
| 534 | } |
| 535 | else |
| 536 | { |
| 537 | /* |
| 538 | * Search for symbol with highest per-call execution time and |
| 539 | * scale accordingly: |
| 540 | */ |
| 541 | log_scale = 0; |
| 542 | top_dog = 0; |
| 543 | top_time = 0.0; |
| 544 | for (index = 0; index < symtab.len; ++index) |
| 545 | { |
| 546 | sym = time_sorted_syms[index]; |
| 547 | if (sym->ncalls) |
| 548 | { |
| 549 | time = (sym->hist.time + sym->cg.child_time) / sym->ncalls; |
| 550 | if (time > top_time) |
| 551 | { |
| 552 | top_dog = sym; |
| 553 | top_time = time; |
| 554 | } |
| 555 | } |
| 556 | } |
| 557 | if (top_dog && top_dog->ncalls && top_time > 0.0) |
| 558 | { |
| 559 | top_time /= hz; |
| 560 | while (SItab[log_scale].scale * top_time < 1000.0 |
| 561 | && log_scale < sizeof (SItab) / sizeof (SItab[0]) - 1) |
| 562 | { |
| 563 | ++log_scale; |
| 564 | } |
| 565 | } |
| 566 | } |
| 567 | |
| 568 | /* |
| 569 | * For now, the dimension is always seconds. In the future, we |
| 570 | * may also want to support other (pseudo-)dimensions (such as |
| 571 | * I-cache misses etc.). |
| 572 | */ |
| 573 | print_header (SItab[log_scale].prefix); |
| 574 | for (index = 0; index < symtab.len; ++index) |
| 575 | { |
| 576 | addr = time_sorted_syms[index]->addr; |
| 577 | /* |
| 578 | * Print symbol if its in INCL_FLAT table or that table |
| 579 | * is empty and the symbol is not in EXCL_FLAT. |
| 580 | */ |
| 581 | if (sym_lookup (&syms[INCL_FLAT], addr) |
| 582 | || (syms[INCL_FLAT].len == 0 |
| 583 | && !sym_lookup (&syms[EXCL_FLAT], addr))) |
| 584 | { |
| 585 | print_line (time_sorted_syms[index], SItab[log_scale].scale); |
| 586 | } |
| 587 | } |
| 588 | free (time_sorted_syms); |
| 589 | |
| 590 | if (print_descriptions && !bsd_style_output) |
| 591 | { |
| 592 | flat_blurb (stdout); |
| 593 | } |
| 594 | } |