Commit | Line | Data |
---|---|---|
ef368dac NC |
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 | |
252b5132 RH |
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 | ||
ef368dac | 37 | /* Declarations of automatically generated functions to output blurbs. */ |
252b5132 RH |
38 | extern void flat_blurb PARAMS ((FILE * fp)); |
39 | ||
ef368dac NC |
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!). */ | |
252b5132 RH |
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 | ||
ef368dac NC |
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). */ | |
252b5132 RH |
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 | ||
ef368dac NC |
108 | |
109 | /* Read the histogram from file IFP. FILENAME is the name of IFP and | |
110 | is provided for formatting error messages only. */ | |
111 | ||
252b5132 RH |
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 | { | |
ef368dac | 137 | /* This is the first histogram record. */ |
252b5132 RH |
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", | |
fdcf7d43 | 148 | (unsigned long) n_lowpc, (unsigned long) n_highpc, ncnt); |
252b5132 | 149 | printf ("[hist_read_rec] s_lowpc 0x%lx s_highpc 0x%lx nsamples %d\n", |
fdcf7d43 ILT |
150 | (unsigned long) s_lowpc, (unsigned long) s_highpc, |
151 | hist_num_bins); | |
252b5132 | 152 | printf ("[hist_read_rec] lowpc 0x%lx highpc 0x%lx\n", |
fdcf7d43 | 153 | (unsigned long) lowpc, (unsigned long) highpc)); |
252b5132 RH |
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 | ||
ef368dac NC |
183 | /* Write execution histogram to file OFP. FILENAME is the name |
184 | of OFP and is provided for formatting error-messages only. */ | |
185 | ||
252b5132 RH |
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 | ||
ef368dac | 194 | /* Write header. */ |
252b5132 RH |
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]); | |
ef368dac | 214 | |
252b5132 RH |
215 | if (fwrite (&count[0], sizeof (count), 1, ofp) != 1) |
216 | { | |
217 | perror (filename); | |
218 | done (1); | |
219 | } | |
220 | } | |
221 | } | |
222 | ||
223 | ||
ef368dac NC |
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 | ||
252b5132 RH |
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", | |
fdcf7d43 ILT |
247 | (unsigned long) sym->hist.scaled_addr, |
248 | (unsigned long) (sym->hist.scaled_addr | |
249 | + UNITS_TO_CODE))); | |
252b5132 RH |
250 | sym->hist.scaled_addr += UNITS_TO_CODE; |
251 | } | |
252 | } | |
253 | } | |
254 | ||
255 | ||
ef368dac NC |
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 | ||
252b5132 RH |
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 | ||
ef368dac | 303 | /* Read samples and assign to symbols. */ |
252b5132 RH |
304 | hist_scale = highpc - lowpc; |
305 | hist_scale /= hist_num_bins; | |
306 | scale_and_align_entries (); | |
307 | ||
ef368dac | 308 | /* Iterate over all sample bins. */ |
252b5132 RH |
309 | for (i = 0, j = 1; i < hist_num_bins; ++i) |
310 | { | |
311 | bin_count = hist_sample[i]; | |
ef368dac NC |
312 | if (! bin_count) |
313 | continue; | |
314 | ||
252b5132 RH |
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; | |
ef368dac | 318 | |
252b5132 RH |
319 | DBG (SAMPLEDEBUG, |
320 | printf ( | |
321 | "[assign_samples] bin_low_pc=0x%lx, bin_high_pc=0x%lx, bin_count=%d\n", | |
fdcf7d43 ILT |
322 | (unsigned long) (sizeof (UNIT) * bin_low_pc), |
323 | (unsigned long) (sizeof (UNIT) * bin_high_pc), | |
252b5132 RH |
324 | bin_count)); |
325 | total_time += time; | |
326 | ||
ef368dac | 327 | /* Credit all symbols that are covered by bin I. */ |
252b5132 RH |
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; | |
ef368dac NC |
332 | |
333 | /* If high end of bin is below entry address, | |
334 | go for next bin. */ | |
252b5132 | 335 | if (bin_high_pc < sym_low_pc) |
ef368dac NC |
336 | break; |
337 | ||
338 | /* If low end of bin is above high end of symbol, | |
339 | go for next symbol. */ | |
252b5132 | 340 | if (bin_low_pc >= sym_high_pc) |
ef368dac NC |
341 | continue; |
342 | ||
252b5132 RH |
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", | |
fdcf7d43 ILT |
350 | (unsigned long) symtab.base[j].addr, |
351 | (unsigned long) (sizeof (UNIT) * sym_high_pc), | |
252b5132 | 352 | symtab.base[j].name, overlap * time / hist_scale, |
fdcf7d43 | 353 | (long) overlap)); |
ef368dac | 354 | |
252b5132 RH |
355 | addr = symtab.base[j].addr; |
356 | credit = overlap * time / hist_scale; | |
ef368dac NC |
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. */ | |
252b5132 RH |
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 | } | |
ef368dac | 374 | |
252b5132 RH |
375 | DBG (SAMPLEDEBUG, printf ("[assign_samples] total_time %f\n", |
376 | total_time)); | |
377 | } | |
378 | ||
379 | ||
ef368dac NC |
380 | /* Print header for flag histogram profile. */ |
381 | ||
252b5132 RH |
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")); | |
ef368dac NC |
407 | |
408 | /* This doesn't hurt since all the numerators will be zero. */ | |
252b5132 RH |
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) | |
ef368dac | 424 | return; |
252b5132 RH |
425 | |
426 | accum_time += sym->hist.time; | |
ef368dac | 427 | |
252b5132 | 428 | if (bsd_style_output) |
ef368dac NC |
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); | |
252b5132 | 432 | else |
ef368dac NC |
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 | ||
252b5132 | 437 | if (sym->ncalls != 0) |
ef368dac NC |
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); | |
252b5132 | 441 | else |
ef368dac NC |
442 | printf (" %8.8s %8.8s %8.8s ", "", "", ""); |
443 | ||
252b5132 | 444 | if (bsd_style_output) |
ef368dac | 445 | print_name (sym); |
252b5132 | 446 | else |
ef368dac NC |
447 | print_name_only (sym); |
448 | ||
252b5132 RH |
449 | printf ("\n"); |
450 | } | |
451 | ||
452 | ||
ef368dac NC |
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 | ||
252b5132 RH |
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; | |
ef368dac | 465 | |
252b5132 | 466 | if (time_diff > 0.0) |
ef368dac NC |
467 | return 1; |
468 | ||
252b5132 | 469 | if (time_diff < 0.0) |
ef368dac | 470 | return -1; |
252b5132 RH |
471 | |
472 | if (right->ncalls > left->ncalls) | |
ef368dac NC |
473 | return 1; |
474 | ||
252b5132 | 475 | if (right->ncalls < left->ncalls) |
ef368dac | 476 | return -1; |
252b5132 RH |
477 | |
478 | return strcmp (left->name, right->name); | |
479 | } | |
480 | ||
481 | ||
ef368dac NC |
482 | /* Print the flat histogram profile. */ |
483 | ||
252b5132 RH |
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) | |
ef368dac | 494 | first_output = FALSE; |
252b5132 | 495 | else |
ef368dac | 496 | printf ("\f\n"); |
252b5132 RH |
497 | |
498 | accum_time = 0.0; | |
ef368dac | 499 | |
252b5132 RH |
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 | } | |
ef368dac NC |
512 | |
513 | /* Sort the symbol table by time (call-count and name as secondary | |
514 | and tertiary keys). */ | |
252b5132 | 515 | time_sorted_syms = (Sym **) xmalloc (symtab.len * sizeof (Sym *)); |
ef368dac | 516 | |
252b5132 | 517 | for (index = 0; index < symtab.len; ++index) |
ef368dac NC |
518 | time_sorted_syms[index] = &symtab.base[index]; |
519 | ||
252b5132 RH |
520 | qsort (time_sorted_syms, symtab.len, sizeof (Sym *), cmp_time); |
521 | ||
522 | if (bsd_style_output) | |
523 | { | |
ef368dac | 524 | log_scale = 5; /* Milli-seconds is BSD-default. */ |
252b5132 RH |
525 | } |
526 | else | |
527 | { | |
ef368dac NC |
528 | /* Search for symbol with highest per-call |
529 | execution time and scale accordingly. */ | |
252b5132 RH |
530 | log_scale = 0; |
531 | top_dog = 0; | |
532 | top_time = 0.0; | |
ef368dac | 533 | |
252b5132 RH |
534 | for (index = 0; index < symtab.len; ++index) |
535 | { | |
536 | sym = time_sorted_syms[index]; | |
ef368dac | 537 | |
252b5132 RH |
538 | if (sym->ncalls != 0) |
539 | { | |
540 | time = (sym->hist.time + sym->cg.child_time) / sym->ncalls; | |
ef368dac | 541 | |
252b5132 RH |
542 | if (time > top_time) |
543 | { | |
544 | top_dog = sym; | |
545 | top_time = time; | |
546 | } | |
547 | } | |
548 | } | |
ef368dac | 549 | |
252b5132 RH |
550 | if (top_dog && top_dog->ncalls != 0 && top_time > 0.0) |
551 | { | |
552 | top_time /= hz; | |
ef368dac | 553 | |
252b5132 RH |
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 | ||
ef368dac NC |
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.). */ | |
252b5132 | 566 | print_header (SItab[log_scale].prefix); |
ef368dac | 567 | |
252b5132 RH |
568 | for (index = 0; index < symtab.len; ++index) |
569 | { | |
570 | addr = time_sorted_syms[index]->addr; | |
ef368dac NC |
571 | |
572 | /* Print symbol if its in INCL_FLAT table or that table | |
573 | is empty and the symbol is not in EXCL_FLAT. */ | |
252b5132 RH |
574 | if (sym_lookup (&syms[INCL_FLAT], addr) |
575 | || (syms[INCL_FLAT].len == 0 | |
576 | && !sym_lookup (&syms[EXCL_FLAT], addr))) | |
ef368dac | 577 | print_line (time_sorted_syms[index], SItab[log_scale].scale); |
252b5132 | 578 | } |
ef368dac | 579 | |
252b5132 RH |
580 | free (time_sorted_syms); |
581 | ||
582 | if (print_descriptions && !bsd_style_output) | |
ef368dac | 583 | flat_blurb (stdout); |
252b5132 | 584 | } |