Commit | Line | Data |
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ef368dac NC |
1 | /* hist.c - Histogram related operations. |
2 | ||
1355568a | 3 | Copyright 2000, 2001, 2002 Free Software Foundation, Inc. |
ef368dac NC |
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 "libiberty.h" |
23 | #include "gprof.h" | |
6d9c411a AM |
24 | #include "search_list.h" |
25 | #include "source.h" | |
26 | #include "symtab.h" | |
252b5132 RH |
27 | #include "corefile.h" |
28 | #include "gmon_io.h" | |
29 | #include "gmon_out.h" | |
30 | #include "hist.h" | |
252b5132 RH |
31 | #include "sym_ids.h" |
32 | #include "utils.h" | |
33 | ||
34 | #define UNITS_TO_CODE (offset_to_code / sizeof(UNIT)) | |
35 | ||
3e8f6abf BE |
36 | static void scale_and_align_entries (void); |
37 | static void print_header (int); | |
38 | static void print_line (Sym *, double); | |
39 | static int cmp_time (const PTR, const PTR); | |
252b5132 | 40 | |
ef368dac | 41 | /* Declarations of automatically generated functions to output blurbs. */ |
3e8f6abf | 42 | extern void flat_blurb (FILE * fp); |
252b5132 | 43 | |
ef368dac NC |
44 | bfd_vma s_lowpc; /* Lowest address in .text. */ |
45 | bfd_vma s_highpc = 0; /* Highest address in .text. */ | |
46 | bfd_vma lowpc, highpc; /* Same, but expressed in UNITs. */ | |
47 | int hist_num_bins = 0; /* Number of histogram samples. */ | |
48 | int *hist_sample = 0; /* Histogram samples (shorts in the file!). */ | |
252b5132 | 49 | double hist_scale; |
0eee5820 | 50 | char hist_dimension[16] = "seconds"; |
252b5132 RH |
51 | char hist_dimension_abbrev = 's'; |
52 | ||
0eee5820 | 53 | static double accum_time; /* Accumulated time so far for print_line(). */ |
ef368dac NC |
54 | static double total_time; /* Total time for all routines. */ |
55 | ||
56 | /* Table of SI prefixes for powers of 10 (used to automatically | |
57 | scale some of the values in the flat profile). */ | |
252b5132 RH |
58 | const struct |
59 | { | |
60 | char prefix; | |
61 | double scale; | |
62 | } | |
63 | SItab[] = | |
64 | { | |
0eee5820 AM |
65 | { 'T', 1e-12 }, /* tera */ |
66 | { 'G', 1e-09 }, /* giga */ | |
67 | { 'M', 1e-06 }, /* mega */ | |
68 | { 'K', 1e-03 }, /* kilo */ | |
69 | { ' ', 1e-00 }, | |
70 | { 'm', 1e+03 }, /* milli */ | |
71 | { 'u', 1e+06 }, /* micro */ | |
72 | { 'n', 1e+09 }, /* nano */ | |
73 | { 'p', 1e+12 }, /* pico */ | |
74 | { 'f', 1e+15 }, /* femto */ | |
75 | { 'a', 1e+18 } /* ato */ | |
252b5132 RH |
76 | }; |
77 | ||
ef368dac NC |
78 | |
79 | /* Read the histogram from file IFP. FILENAME is the name of IFP and | |
80 | is provided for formatting error messages only. */ | |
81 | ||
252b5132 | 82 | void |
3e8f6abf | 83 | hist_read_rec (FILE * ifp, const char *filename) |
252b5132 | 84 | { |
252b5132 RH |
85 | bfd_vma n_lowpc, n_highpc; |
86 | int i, ncnt, profrate; | |
87 | UNIT count; | |
88 | ||
0eee5820 AM |
89 | if (gmon_io_read_vma (ifp, &n_lowpc) |
90 | || gmon_io_read_vma (ifp, &n_highpc) | |
91 | || gmon_io_read_32 (ifp, &ncnt) | |
92 | || gmon_io_read_32 (ifp, &profrate) | |
93 | || gmon_io_read (ifp, hist_dimension, 15) | |
94 | || gmon_io_read (ifp, &hist_dimension_abbrev, 1)) | |
252b5132 RH |
95 | { |
96 | fprintf (stderr, _("%s: %s: unexpected end of file\n"), | |
97 | whoami, filename); | |
0eee5820 | 98 | |
252b5132 RH |
99 | done (1); |
100 | } | |
101 | ||
252b5132 RH |
102 | if (!s_highpc) |
103 | { | |
ef368dac | 104 | /* This is the first histogram record. */ |
252b5132 RH |
105 | s_lowpc = n_lowpc; |
106 | s_highpc = n_highpc; | |
107 | lowpc = (bfd_vma) n_lowpc / sizeof (UNIT); | |
108 | highpc = (bfd_vma) n_highpc / sizeof (UNIT); | |
109 | hist_num_bins = ncnt; | |
110 | hz = profrate; | |
111 | } | |
112 | ||
113 | DBG (SAMPLEDEBUG, | |
114 | printf ("[hist_read_rec] n_lowpc 0x%lx n_highpc 0x%lx ncnt %d\n", | |
fdcf7d43 | 115 | (unsigned long) n_lowpc, (unsigned long) n_highpc, ncnt); |
252b5132 | 116 | printf ("[hist_read_rec] s_lowpc 0x%lx s_highpc 0x%lx nsamples %d\n", |
fdcf7d43 ILT |
117 | (unsigned long) s_lowpc, (unsigned long) s_highpc, |
118 | hist_num_bins); | |
252b5132 | 119 | printf ("[hist_read_rec] lowpc 0x%lx highpc 0x%lx\n", |
fdcf7d43 | 120 | (unsigned long) lowpc, (unsigned long) highpc)); |
252b5132 RH |
121 | |
122 | if (n_lowpc != s_lowpc || n_highpc != s_highpc | |
123 | || ncnt != hist_num_bins || hz != profrate) | |
124 | { | |
125 | fprintf (stderr, _("%s: `%s' is incompatible with first gmon file\n"), | |
126 | whoami, filename); | |
127 | done (1); | |
128 | } | |
129 | ||
130 | if (!hist_sample) | |
131 | { | |
132 | hist_sample = (int *) xmalloc (hist_num_bins * sizeof (hist_sample[0])); | |
133 | memset (hist_sample, 0, hist_num_bins * sizeof (hist_sample[0])); | |
134 | } | |
135 | ||
136 | for (i = 0; i < hist_num_bins; ++i) | |
137 | { | |
138 | if (fread (&count[0], sizeof (count), 1, ifp) != 1) | |
139 | { | |
140 | fprintf (stderr, | |
0eee5820 | 141 | _("%s: %s: unexpected EOF after reading %d of %d samples\n"), |
252b5132 RH |
142 | whoami, filename, i, hist_num_bins); |
143 | done (1); | |
144 | } | |
145 | hist_sample[i] += bfd_get_16 (core_bfd, (bfd_byte *) & count[0]); | |
0eee5820 AM |
146 | DBG (SAMPLEDEBUG, |
147 | printf ("[hist_read_rec] 0x%lx: %u\n", | |
148 | (unsigned long) (n_lowpc + i * (n_highpc - n_lowpc) / ncnt), | |
149 | hist_sample[i])); | |
252b5132 RH |
150 | } |
151 | } | |
152 | ||
153 | ||
ef368dac NC |
154 | /* Write execution histogram to file OFP. FILENAME is the name |
155 | of OFP and is provided for formatting error-messages only. */ | |
156 | ||
252b5132 | 157 | void |
3e8f6abf | 158 | hist_write_hist (FILE * ofp, const char *filename) |
252b5132 | 159 | { |
252b5132 RH |
160 | UNIT count; |
161 | int i; | |
162 | ||
ef368dac | 163 | /* Write header. */ |
252b5132 | 164 | |
0eee5820 AM |
165 | if (gmon_io_write_8 (ofp, GMON_TAG_TIME_HIST) |
166 | || gmon_io_write_vma (ofp, s_lowpc) | |
167 | || gmon_io_write_vma (ofp, s_highpc) | |
168 | || gmon_io_write_32 (ofp, hist_num_bins) | |
169 | || gmon_io_write_32 (ofp, hz) | |
170 | || gmon_io_write (ofp, hist_dimension, 15) | |
171 | || gmon_io_write (ofp, &hist_dimension_abbrev, 1)) | |
252b5132 RH |
172 | { |
173 | perror (filename); | |
174 | done (1); | |
175 | } | |
176 | ||
177 | for (i = 0; i < hist_num_bins; ++i) | |
178 | { | |
1355568a | 179 | bfd_put_16 (core_bfd, (bfd_vma) hist_sample[i], (bfd_byte *) &count[0]); |
0eee5820 | 180 | |
252b5132 RH |
181 | if (fwrite (&count[0], sizeof (count), 1, ofp) != 1) |
182 | { | |
183 | perror (filename); | |
184 | done (1); | |
185 | } | |
186 | } | |
187 | } | |
188 | ||
189 | ||
ef368dac NC |
190 | /* Calculate scaled entry point addresses (to save time in |
191 | hist_assign_samples), and, on architectures that have procedure | |
192 | entry masks at the start of a function, possibly push the scaled | |
193 | entry points over the procedure entry mask, if it turns out that | |
194 | the entry point is in one bin and the code for a routine is in the | |
195 | next bin. */ | |
196 | ||
252b5132 RH |
197 | static void |
198 | scale_and_align_entries () | |
199 | { | |
200 | Sym *sym; | |
201 | bfd_vma bin_of_entry; | |
202 | bfd_vma bin_of_code; | |
203 | ||
204 | for (sym = symtab.base; sym < symtab.limit; sym++) | |
205 | { | |
206 | sym->hist.scaled_addr = sym->addr / sizeof (UNIT); | |
207 | bin_of_entry = (sym->hist.scaled_addr - lowpc) / hist_scale; | |
0eee5820 AM |
208 | bin_of_code = ((sym->hist.scaled_addr + UNITS_TO_CODE - lowpc) |
209 | / hist_scale); | |
252b5132 RH |
210 | if (bin_of_entry < bin_of_code) |
211 | { | |
212 | DBG (SAMPLEDEBUG, | |
213 | printf ("[scale_and_align_entries] pushing 0x%lx to 0x%lx\n", | |
fdcf7d43 ILT |
214 | (unsigned long) sym->hist.scaled_addr, |
215 | (unsigned long) (sym->hist.scaled_addr | |
216 | + UNITS_TO_CODE))); | |
252b5132 RH |
217 | sym->hist.scaled_addr += UNITS_TO_CODE; |
218 | } | |
219 | } | |
220 | } | |
221 | ||
222 | ||
ef368dac | 223 | /* Assign samples to the symbol to which they belong. |
0eee5820 | 224 | |
ef368dac NC |
225 | Histogram bin I covers some address range [BIN_LOWPC,BIN_HIGH_PC) |
226 | which may overlap one more symbol address ranges. If a symbol | |
227 | overlaps with the bin's address range by O percent, then O percent | |
228 | of the bin's count is credited to that symbol. | |
0eee5820 | 229 | |
ef368dac NC |
230 | There are three cases as to where BIN_LOW_PC and BIN_HIGH_PC can be |
231 | with respect to the symbol's address range [SYM_LOW_PC, | |
232 | SYM_HIGH_PC) as shown in the following diagram. OVERLAP computes | |
233 | the distance (in UNITs) between the arrows, the fraction of the | |
234 | sample that is to be credited to the symbol which starts at | |
235 | SYM_LOW_PC. | |
0eee5820 AM |
236 | |
237 | sym_low_pc sym_high_pc | |
238 | | | | |
239 | v v | |
240 | ||
241 | +-----------------------------------------------+ | |
242 | | | | |
243 | | ->| |<- ->| |<- ->| |<- | | |
244 | | | | | | | | |
245 | +---------+ +---------+ +---------+ | |
246 | ||
247 | ^ ^ ^ ^ ^ ^ | |
248 | | | | | | | | |
ef368dac | 249 | bin_low_pc bin_high_pc bin_low_pc bin_high_pc bin_low_pc bin_high_pc |
0eee5820 | 250 | |
ef368dac NC |
251 | For the VAX we assert that samples will never fall in the first two |
252 | bytes of any routine, since that is the entry mask, thus we call | |
253 | scale_and_align_entries() to adjust the entry points if the entry | |
254 | mask falls in one bin but the code for the routine doesn't start | |
255 | until the next bin. In conjunction with the alignment of routine | |
256 | addresses, this should allow us to have only one sample for every | |
257 | four bytes of text space and never have any overlap (the two end | |
258 | cases, above). */ | |
259 | ||
252b5132 | 260 | void |
1355568a | 261 | hist_assign_samples () |
252b5132 RH |
262 | { |
263 | bfd_vma bin_low_pc, bin_high_pc; | |
264 | bfd_vma sym_low_pc, sym_high_pc; | |
265 | bfd_vma overlap, addr; | |
266 | int bin_count, i; | |
267 | unsigned int j; | |
268 | double time, credit; | |
269 | ||
ef368dac | 270 | /* Read samples and assign to symbols. */ |
252b5132 RH |
271 | hist_scale = highpc - lowpc; |
272 | hist_scale /= hist_num_bins; | |
273 | scale_and_align_entries (); | |
274 | ||
ef368dac | 275 | /* Iterate over all sample bins. */ |
252b5132 RH |
276 | for (i = 0, j = 1; i < hist_num_bins; ++i) |
277 | { | |
278 | bin_count = hist_sample[i]; | |
ef368dac NC |
279 | if (! bin_count) |
280 | continue; | |
281 | ||
252b5132 RH |
282 | bin_low_pc = lowpc + (bfd_vma) (hist_scale * i); |
283 | bin_high_pc = lowpc + (bfd_vma) (hist_scale * (i + 1)); | |
284 | time = bin_count; | |
0eee5820 | 285 | |
252b5132 RH |
286 | DBG (SAMPLEDEBUG, |
287 | printf ( | |
288 | "[assign_samples] bin_low_pc=0x%lx, bin_high_pc=0x%lx, bin_count=%d\n", | |
fdcf7d43 ILT |
289 | (unsigned long) (sizeof (UNIT) * bin_low_pc), |
290 | (unsigned long) (sizeof (UNIT) * bin_high_pc), | |
252b5132 RH |
291 | bin_count)); |
292 | total_time += time; | |
293 | ||
ef368dac | 294 | /* Credit all symbols that are covered by bin I. */ |
252b5132 RH |
295 | for (j = j - 1; j < symtab.len; ++j) |
296 | { | |
297 | sym_low_pc = symtab.base[j].hist.scaled_addr; | |
298 | sym_high_pc = symtab.base[j + 1].hist.scaled_addr; | |
0eee5820 | 299 | |
ef368dac NC |
300 | /* If high end of bin is below entry address, |
301 | go for next bin. */ | |
252b5132 | 302 | if (bin_high_pc < sym_low_pc) |
ef368dac NC |
303 | break; |
304 | ||
305 | /* If low end of bin is above high end of symbol, | |
306 | go for next symbol. */ | |
252b5132 | 307 | if (bin_low_pc >= sym_high_pc) |
ef368dac NC |
308 | continue; |
309 | ||
252b5132 RH |
310 | overlap = |
311 | MIN (bin_high_pc, sym_high_pc) - MAX (bin_low_pc, sym_low_pc); | |
312 | if (overlap > 0) | |
313 | { | |
314 | DBG (SAMPLEDEBUG, | |
315 | printf ( | |
0eee5820 AM |
316 | "[assign_samples] [0x%lx,0x%lx) %s gets %f ticks %ld overlap\n", |
317 | (unsigned long) symtab.base[j].addr, | |
318 | (unsigned long) (sizeof (UNIT) * sym_high_pc), | |
319 | symtab.base[j].name, overlap * time / hist_scale, | |
320 | (long) overlap)); | |
321 | ||
252b5132 RH |
322 | addr = symtab.base[j].addr; |
323 | credit = overlap * time / hist_scale; | |
0eee5820 | 324 | |
ef368dac | 325 | /* Credit symbol if it appears in INCL_FLAT or that |
0eee5820 AM |
326 | table is empty and it does not appear it in |
327 | EXCL_FLAT. */ | |
252b5132 RH |
328 | if (sym_lookup (&syms[INCL_FLAT], addr) |
329 | || (syms[INCL_FLAT].len == 0 | |
330 | && !sym_lookup (&syms[EXCL_FLAT], addr))) | |
331 | { | |
332 | symtab.base[j].hist.time += credit; | |
333 | } | |
334 | else | |
335 | { | |
336 | total_time -= credit; | |
337 | } | |
338 | } | |
339 | } | |
340 | } | |
0eee5820 | 341 | |
252b5132 RH |
342 | DBG (SAMPLEDEBUG, printf ("[assign_samples] total_time %f\n", |
343 | total_time)); | |
344 | } | |
345 | ||
346 | ||
ef368dac NC |
347 | /* Print header for flag histogram profile. */ |
348 | ||
252b5132 | 349 | static void |
3e8f6abf | 350 | print_header (int prefix) |
252b5132 RH |
351 | { |
352 | char unit[64]; | |
353 | ||
354 | sprintf (unit, _("%c%c/call"), prefix, hist_dimension_abbrev); | |
355 | ||
356 | if (bsd_style_output) | |
357 | { | |
358 | printf (_("\ngranularity: each sample hit covers %ld byte(s)"), | |
359 | (long) hist_scale * sizeof (UNIT)); | |
360 | if (total_time > 0.0) | |
361 | { | |
362 | printf (_(" for %.2f%% of %.2f %s\n\n"), | |
363 | 100.0 / total_time, total_time / hz, hist_dimension); | |
364 | } | |
365 | } | |
366 | else | |
367 | { | |
368 | printf (_("\nEach sample counts as %g %s.\n"), 1.0 / hz, hist_dimension); | |
369 | } | |
370 | ||
371 | if (total_time <= 0.0) | |
372 | { | |
373 | printf (_(" no time accumulated\n\n")); | |
0eee5820 | 374 | |
ef368dac | 375 | /* This doesn't hurt since all the numerators will be zero. */ |
252b5132 RH |
376 | total_time = 1.0; |
377 | } | |
378 | ||
379 | printf ("%5.5s %10.10s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", | |
0eee5820 AM |
380 | "% ", _("cumulative"), _("self "), "", _("self "), _("total "), |
381 | ""); | |
252b5132 RH |
382 | printf ("%5.5s %9.9s %8.8s %8.8s %8.8s %8.8s %-8.8s\n", |
383 | _("time"), hist_dimension, hist_dimension, _("calls"), unit, unit, | |
384 | _("name")); | |
385 | } | |
386 | ||
387 | ||
388 | static void | |
3e8f6abf | 389 | print_line (Sym *sym, double scale) |
252b5132 RH |
390 | { |
391 | if (ignore_zeros && sym->ncalls == 0 && sym->hist.time == 0) | |
ef368dac | 392 | return; |
252b5132 RH |
393 | |
394 | accum_time += sym->hist.time; | |
0eee5820 | 395 | |
252b5132 | 396 | if (bsd_style_output) |
ef368dac NC |
397 | printf ("%5.1f %10.2f %8.2f", |
398 | total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, | |
399 | accum_time / hz, sym->hist.time / hz); | |
252b5132 | 400 | else |
ef368dac NC |
401 | printf ("%6.2f %9.2f %8.2f", |
402 | total_time > 0.0 ? 100 * sym->hist.time / total_time : 0.0, | |
403 | accum_time / hz, sym->hist.time / hz); | |
0eee5820 | 404 | |
252b5132 | 405 | if (sym->ncalls != 0) |
ef368dac NC |
406 | printf (" %8lu %8.2f %8.2f ", |
407 | sym->ncalls, scale * sym->hist.time / hz / sym->ncalls, | |
408 | scale * (sym->hist.time + sym->cg.child_time) / hz / sym->ncalls); | |
252b5132 | 409 | else |
ef368dac | 410 | printf (" %8.8s %8.8s %8.8s ", "", "", ""); |
0eee5820 | 411 | |
252b5132 | 412 | if (bsd_style_output) |
ef368dac | 413 | print_name (sym); |
252b5132 | 414 | else |
ef368dac NC |
415 | print_name_only (sym); |
416 | ||
252b5132 RH |
417 | printf ("\n"); |
418 | } | |
419 | ||
420 | ||
ef368dac NC |
421 | /* Compare LP and RP. The primary comparison key is execution time, |
422 | the secondary is number of invocation, and the tertiary is the | |
423 | lexicographic order of the function names. */ | |
424 | ||
252b5132 | 425 | static int |
3e8f6abf | 426 | cmp_time (const PTR lp, const PTR rp) |
252b5132 RH |
427 | { |
428 | const Sym *left = *(const Sym **) lp; | |
429 | const Sym *right = *(const Sym **) rp; | |
430 | double time_diff; | |
431 | ||
432 | time_diff = right->hist.time - left->hist.time; | |
0eee5820 | 433 | |
252b5132 | 434 | if (time_diff > 0.0) |
ef368dac | 435 | return 1; |
0eee5820 | 436 | |
252b5132 | 437 | if (time_diff < 0.0) |
ef368dac | 438 | return -1; |
252b5132 RH |
439 | |
440 | if (right->ncalls > left->ncalls) | |
ef368dac NC |
441 | return 1; |
442 | ||
252b5132 | 443 | if (right->ncalls < left->ncalls) |
ef368dac | 444 | return -1; |
252b5132 RH |
445 | |
446 | return strcmp (left->name, right->name); | |
447 | } | |
448 | ||
449 | ||
ef368dac NC |
450 | /* Print the flat histogram profile. */ |
451 | ||
252b5132 | 452 | void |
1355568a | 453 | hist_print () |
252b5132 RH |
454 | { |
455 | Sym **time_sorted_syms, *top_dog, *sym; | |
456 | unsigned int index; | |
be5523fb | 457 | unsigned log_scale; |
252b5132 RH |
458 | double top_time, time; |
459 | bfd_vma addr; | |
460 | ||
461 | if (first_output) | |
b34976b6 | 462 | first_output = FALSE; |
252b5132 | 463 | else |
ef368dac | 464 | printf ("\f\n"); |
252b5132 RH |
465 | |
466 | accum_time = 0.0; | |
0eee5820 | 467 | |
252b5132 RH |
468 | if (bsd_style_output) |
469 | { | |
470 | if (print_descriptions) | |
471 | { | |
472 | printf (_("\n\n\nflat profile:\n")); | |
473 | flat_blurb (stdout); | |
474 | } | |
475 | } | |
476 | else | |
477 | { | |
478 | printf (_("Flat profile:\n")); | |
479 | } | |
0eee5820 | 480 | |
ef368dac NC |
481 | /* Sort the symbol table by time (call-count and name as secondary |
482 | and tertiary keys). */ | |
252b5132 | 483 | time_sorted_syms = (Sym **) xmalloc (symtab.len * sizeof (Sym *)); |
0eee5820 | 484 | |
252b5132 | 485 | for (index = 0; index < symtab.len; ++index) |
ef368dac NC |
486 | time_sorted_syms[index] = &symtab.base[index]; |
487 | ||
252b5132 RH |
488 | qsort (time_sorted_syms, symtab.len, sizeof (Sym *), cmp_time); |
489 | ||
490 | if (bsd_style_output) | |
491 | { | |
ef368dac | 492 | log_scale = 5; /* Milli-seconds is BSD-default. */ |
252b5132 RH |
493 | } |
494 | else | |
495 | { | |
ef368dac NC |
496 | /* Search for symbol with highest per-call |
497 | execution time and scale accordingly. */ | |
252b5132 RH |
498 | log_scale = 0; |
499 | top_dog = 0; | |
500 | top_time = 0.0; | |
0eee5820 | 501 | |
252b5132 RH |
502 | for (index = 0; index < symtab.len; ++index) |
503 | { | |
504 | sym = time_sorted_syms[index]; | |
0eee5820 | 505 | |
252b5132 RH |
506 | if (sym->ncalls != 0) |
507 | { | |
508 | time = (sym->hist.time + sym->cg.child_time) / sym->ncalls; | |
0eee5820 | 509 | |
252b5132 RH |
510 | if (time > top_time) |
511 | { | |
512 | top_dog = sym; | |
513 | top_time = time; | |
514 | } | |
515 | } | |
516 | } | |
0eee5820 | 517 | |
252b5132 RH |
518 | if (top_dog && top_dog->ncalls != 0 && top_time > 0.0) |
519 | { | |
520 | top_time /= hz; | |
0eee5820 | 521 | |
be5523fb | 522 | for (log_scale = 0; log_scale < ARRAY_SIZE (SItab); log_scale ++) |
252b5132 | 523 | { |
be5523fb FCE |
524 | double scaled_value = SItab[log_scale].scale * top_time; |
525 | ||
526 | if (scaled_value >= 1.0 && scaled_value < 1000.0) | |
527 | break; | |
252b5132 RH |
528 | } |
529 | } | |
530 | } | |
531 | ||
ef368dac NC |
532 | /* For now, the dimension is always seconds. In the future, we |
533 | may also want to support other (pseudo-)dimensions (such as | |
534 | I-cache misses etc.). */ | |
252b5132 | 535 | print_header (SItab[log_scale].prefix); |
0eee5820 | 536 | |
252b5132 RH |
537 | for (index = 0; index < symtab.len; ++index) |
538 | { | |
539 | addr = time_sorted_syms[index]->addr; | |
0eee5820 | 540 | |
ef368dac | 541 | /* Print symbol if its in INCL_FLAT table or that table |
0eee5820 | 542 | is empty and the symbol is not in EXCL_FLAT. */ |
252b5132 RH |
543 | if (sym_lookup (&syms[INCL_FLAT], addr) |
544 | || (syms[INCL_FLAT].len == 0 | |
545 | && !sym_lookup (&syms[EXCL_FLAT], addr))) | |
ef368dac | 546 | print_line (time_sorted_syms[index], SItab[log_scale].scale); |
252b5132 | 547 | } |
0eee5820 | 548 | |
252b5132 RH |
549 | free (time_sorted_syms); |
550 | ||
551 | if (print_descriptions && !bsd_style_output) | |
ef368dac | 552 | flat_blurb (stdout); |
252b5132 | 553 | } |