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Commit | Line | Data |
---|---|---|
07800601 | 1 | /* |
bf9e1876 IM |
2 | * builtin-top.c |
3 | * | |
4 | * Builtin top command: Display a continuously updated profile of | |
5 | * any workload, CPU or specific PID. | |
6 | * | |
7 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> | |
ab81f3fd | 8 | * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> |
bf9e1876 IM |
9 | * |
10 | * Improvements and fixes by: | |
11 | * | |
12 | * Arjan van de Ven <arjan@linux.intel.com> | |
13 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
14 | * Wu Fengguang <fengguang.wu@intel.com> | |
15 | * Mike Galbraith <efault@gmx.de> | |
16 | * Paul Mackerras <paulus@samba.org> | |
17 | * | |
18 | * Released under the GPL v2. (and only v2, not any later version) | |
07800601 | 19 | */ |
bf9e1876 | 20 | #include "builtin.h" |
07800601 | 21 | |
1a482f38 | 22 | #include "perf.h" |
bf9e1876 | 23 | |
36532461 | 24 | #include "util/annotate.h" |
c0443df1 | 25 | #include "util/cache.h" |
8fc0321f | 26 | #include "util/color.h" |
361c99a6 | 27 | #include "util/evlist.h" |
69aad6f1 | 28 | #include "util/evsel.h" |
b0a7d1a0 | 29 | #include "util/machine.h" |
b3165f41 ACM |
30 | #include "util/session.h" |
31 | #include "util/symbol.h" | |
439d473b | 32 | #include "util/thread.h" |
fd78260b | 33 | #include "util/thread_map.h" |
8c3e10eb | 34 | #include "util/top.h" |
148be2c1 | 35 | #include "util/util.h" |
43cbcd8a | 36 | #include <linux/rbtree.h> |
b456bae0 IM |
37 | #include "util/parse-options.h" |
38 | #include "util/parse-events.h" | |
a12b51c4 | 39 | #include "util/cpumap.h" |
69aad6f1 | 40 | #include "util/xyarray.h" |
ab81f3fd | 41 | #include "util/sort.h" |
6b118e92 | 42 | #include "util/intlist.h" |
a18b027e | 43 | #include "util/parse-branch-options.h" |
0d3942db | 44 | #include "arch/common.h" |
07800601 | 45 | |
8f28827a FW |
46 | #include "util/debug.h" |
47 | ||
07800601 | 48 | #include <assert.h> |
31d68e7b | 49 | #include <elf.h> |
07800601 | 50 | #include <fcntl.h> |
0e9b20b8 | 51 | |
07800601 | 52 | #include <stdio.h> |
923c42c1 MG |
53 | #include <termios.h> |
54 | #include <unistd.h> | |
9486aa38 | 55 | #include <inttypes.h> |
0e9b20b8 | 56 | |
07800601 | 57 | #include <errno.h> |
07800601 IM |
58 | #include <time.h> |
59 | #include <sched.h> | |
07800601 IM |
60 | |
61 | #include <sys/syscall.h> | |
62 | #include <sys/ioctl.h> | |
a8fa4960 | 63 | #include <poll.h> |
07800601 IM |
64 | #include <sys/prctl.h> |
65 | #include <sys/wait.h> | |
66 | #include <sys/uio.h> | |
31d68e7b | 67 | #include <sys/utsname.h> |
07800601 IM |
68 | #include <sys/mman.h> |
69 | ||
07800601 IM |
70 | #include <linux/types.h> |
71 | ||
11859e82 ACM |
72 | static volatile int done; |
73 | ||
933cbb1c NK |
74 | #define HEADER_LINE_NR 5 |
75 | ||
1758af10 | 76 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 77 | { |
933cbb1c | 78 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
79 | } |
80 | ||
1d037ca1 IT |
81 | static void perf_top__sig_winch(int sig __maybe_unused, |
82 | siginfo_t *info __maybe_unused, void *arg) | |
3b6ed988 | 83 | { |
1758af10 ACM |
84 | struct perf_top *top = arg; |
85 | ||
86 | get_term_dimensions(&top->winsize); | |
87 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
88 | } |
89 | ||
1758af10 | 90 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 MG |
91 | { |
92 | struct symbol *sym; | |
ce6f4fab | 93 | struct annotation *notes; |
439d473b | 94 | struct map *map; |
36532461 | 95 | int err = -1; |
923c42c1 | 96 | |
ab81f3fd | 97 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
98 | return -1; |
99 | ||
ab81f3fd ACM |
100 | sym = he->ms.sym; |
101 | map = he->ms.map; | |
b0a9ab62 ACM |
102 | |
103 | /* | |
104 | * We can't annotate with just /proc/kallsyms | |
105 | */ | |
bbb7f846 AH |
106 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
107 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
108 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
109 | "path\n", sym->name); | |
110 | sleep(1); | |
b0a9ab62 | 111 | return -1; |
b269876c ACM |
112 | } |
113 | ||
ce6f4fab ACM |
114 | notes = symbol__annotation(sym); |
115 | if (notes->src != NULL) { | |
116 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
117 | goto out_assign; |
118 | } | |
923c42c1 | 119 | |
ce6f4fab | 120 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 121 | |
d04b35f8 | 122 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 123 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
124 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
125 | sym->name); | |
ce6f4fab | 126 | sleep(1); |
c97cf422 | 127 | return err; |
923c42c1 | 128 | } |
36532461 | 129 | |
ab81f3fd | 130 | err = symbol__annotate(sym, map, 0); |
36532461 | 131 | if (err == 0) { |
923c42c1 | 132 | out_assign: |
1758af10 | 133 | top->sym_filter_entry = he; |
36532461 | 134 | } |
c97cf422 | 135 | |
ce6f4fab | 136 | pthread_mutex_unlock(¬es->lock); |
36532461 | 137 | return err; |
923c42c1 MG |
138 | } |
139 | ||
ab81f3fd | 140 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 141 | { |
ab81f3fd | 142 | struct symbol *sym = he->ms.sym; |
36532461 | 143 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
144 | } |
145 | ||
31d68e7b ACM |
146 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
147 | { | |
148 | struct utsname uts; | |
149 | int err = uname(&uts); | |
150 | ||
151 | ui__warning("Out of bounds address found:\n\n" | |
152 | "Addr: %" PRIx64 "\n" | |
153 | "DSO: %s %c\n" | |
154 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
155 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
156 | "Arch: %s\n" | |
157 | "Kernel: %s\n" | |
158 | "Tools: %s\n\n" | |
159 | "Not all samples will be on the annotation output.\n\n" | |
160 | "Please report to linux-kernel@vger.kernel.org\n", | |
161 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
162 | map->start, map->end, sym->start, sym->end, | |
163 | sym->binding == STB_GLOBAL ? 'g' : | |
164 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
165 | err ? "[unknown]" : uts.machine, | |
166 | err ? "[unknown]" : uts.release, perf_version_string); | |
167 | if (use_browser <= 0) | |
168 | sleep(5); | |
48000a1a | 169 | |
31d68e7b ACM |
170 | map->erange_warned = true; |
171 | } | |
172 | ||
1758af10 ACM |
173 | static void perf_top__record_precise_ip(struct perf_top *top, |
174 | struct hist_entry *he, | |
175 | int counter, u64 ip) | |
923c42c1 | 176 | { |
ce6f4fab ACM |
177 | struct annotation *notes; |
178 | struct symbol *sym; | |
48c65bda | 179 | int err = 0; |
ce6f4fab | 180 | |
ab81f3fd | 181 | if (he == NULL || he->ms.sym == NULL || |
1758af10 ACM |
182 | ((top->sym_filter_entry == NULL || |
183 | top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) | |
923c42c1 MG |
184 | return; |
185 | ||
ab81f3fd | 186 | sym = he->ms.sym; |
ce6f4fab ACM |
187 | notes = symbol__annotation(sym); |
188 | ||
189 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
190 | return; |
191 | ||
ab81f3fd | 192 | ip = he->ms.map->map_ip(he->ms.map, ip); |
48c65bda NK |
193 | |
194 | if (ui__has_annotation()) | |
195 | err = hist_entry__inc_addr_samples(he, counter, ip); | |
c7ad21af | 196 | |
ce6f4fab | 197 | pthread_mutex_unlock(¬es->lock); |
31d68e7b | 198 | |
7c50391f NK |
199 | /* |
200 | * This function is now called with he->hists->lock held. | |
201 | * Release it before going to sleep. | |
202 | */ | |
203 | pthread_mutex_unlock(&he->hists->lock); | |
204 | ||
31d68e7b ACM |
205 | if (err == -ERANGE && !he->ms.map->erange_warned) |
206 | ui__warn_map_erange(he->ms.map, sym, ip); | |
b66d8c0c ACM |
207 | else if (err == -ENOMEM) { |
208 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
209 | sym->name); | |
210 | sleep(1); | |
211 | } | |
7c50391f NK |
212 | |
213 | pthread_mutex_lock(&he->hists->lock); | |
923c42c1 MG |
214 | } |
215 | ||
1758af10 | 216 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 217 | { |
1758af10 | 218 | struct hist_entry *he = top->sym_filter_entry; |
ce6f4fab | 219 | struct annotation *notes; |
923c42c1 | 220 | struct symbol *symbol; |
36532461 | 221 | int more; |
923c42c1 | 222 | |
ab81f3fd | 223 | if (!he) |
923c42c1 MG |
224 | return; |
225 | ||
ab81f3fd | 226 | symbol = he->ms.sym; |
ce6f4fab ACM |
227 | notes = symbol__annotation(symbol); |
228 | ||
229 | pthread_mutex_lock(¬es->lock); | |
230 | ||
231 | if (notes->src == NULL) | |
232 | goto out_unlock; | |
923c42c1 | 233 | |
7289f83c | 234 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 235 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 236 | |
db8fd07a | 237 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 | 238 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
5d484f99 ACM |
239 | |
240 | if (top->evlist->enabled) { | |
241 | if (top->zero) | |
242 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
243 | else | |
244 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
245 | } | |
36532461 | 246 | if (more != 0) |
923c42c1 | 247 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
248 | out_unlock: |
249 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 250 | } |
07800601 | 251 | |
1758af10 | 252 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 253 | { |
8c3e10eb ACM |
254 | char bf[160]; |
255 | int printed = 0; | |
1758af10 | 256 | const int win_width = top->winsize.ws_col - 1; |
4ea062ed | 257 | struct hists *hists = evsel__hists(top->sym_evsel); |
d94b9430 | 258 | |
0f5486b5 | 259 | puts(CONSOLE_CLEAR); |
07800601 | 260 | |
1758af10 | 261 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 262 | printf("%s\n", bf); |
07800601 | 263 | |
1758af10 | 264 | perf_top__reset_sample_counters(top); |
07800601 | 265 | |
1a105f74 | 266 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 267 | |
4ea062ed ACM |
268 | if (hists->stats.nr_lost_warned != |
269 | hists->stats.nr_events[PERF_RECORD_LOST]) { | |
270 | hists->stats.nr_lost_warned = | |
271 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
272 | color_fprintf(stdout, PERF_COLOR_RED, |
273 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 274 | hists->stats.nr_lost_warned); |
ab81f3fd | 275 | ++printed; |
93fc64f1 ACM |
276 | } |
277 | ||
1758af10 ACM |
278 | if (top->sym_filter_entry) { |
279 | perf_top__show_details(top); | |
923c42c1 MG |
280 | return; |
281 | } | |
282 | ||
5d484f99 ACM |
283 | if (top->evlist->enabled) { |
284 | if (top->zero) { | |
285 | hists__delete_entries(hists); | |
286 | } else { | |
287 | hists__decay_entries(hists, top->hide_user_symbols, | |
288 | top->hide_kernel_symbols); | |
289 | } | |
701937bd NK |
290 | } |
291 | ||
4ea062ed | 292 | hists__collapse_resort(hists, NULL); |
740b97f9 | 293 | hists__output_resort(hists, NULL); |
701937bd | 294 | |
4ea062ed | 295 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 296 | putchar('\n'); |
4ea062ed | 297 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
fa5df943 | 298 | top->min_percent, stdout); |
07800601 IM |
299 | } |
300 | ||
923c42c1 MG |
301 | static void prompt_integer(int *target, const char *msg) |
302 | { | |
303 | char *buf = malloc(0), *p; | |
304 | size_t dummy = 0; | |
305 | int tmp; | |
306 | ||
307 | fprintf(stdout, "\n%s: ", msg); | |
308 | if (getline(&buf, &dummy, stdin) < 0) | |
309 | return; | |
310 | ||
311 | p = strchr(buf, '\n'); | |
312 | if (p) | |
313 | *p = 0; | |
314 | ||
315 | p = buf; | |
316 | while(*p) { | |
317 | if (!isdigit(*p)) | |
318 | goto out_free; | |
319 | p++; | |
320 | } | |
321 | tmp = strtoul(buf, NULL, 10); | |
322 | *target = tmp; | |
323 | out_free: | |
324 | free(buf); | |
325 | } | |
326 | ||
327 | static void prompt_percent(int *target, const char *msg) | |
328 | { | |
329 | int tmp = 0; | |
330 | ||
331 | prompt_integer(&tmp, msg); | |
332 | if (tmp >= 0 && tmp <= 100) | |
333 | *target = tmp; | |
334 | } | |
335 | ||
1758af10 | 336 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
337 | { |
338 | char *buf = malloc(0), *p; | |
1758af10 | 339 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 340 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 341 | struct rb_node *next; |
923c42c1 MG |
342 | size_t dummy = 0; |
343 | ||
344 | /* zero counters of active symbol */ | |
345 | if (syme) { | |
923c42c1 | 346 | __zero_source_counters(syme); |
1758af10 | 347 | top->sym_filter_entry = NULL; |
923c42c1 MG |
348 | } |
349 | ||
350 | fprintf(stdout, "\n%s: ", msg); | |
351 | if (getline(&buf, &dummy, stdin) < 0) | |
352 | goto out_free; | |
353 | ||
354 | p = strchr(buf, '\n'); | |
355 | if (p) | |
356 | *p = 0; | |
357 | ||
4ea062ed | 358 | next = rb_first(&hists->entries); |
ab81f3fd ACM |
359 | while (next) { |
360 | n = rb_entry(next, struct hist_entry, rb_node); | |
361 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
362 | found = n; | |
923c42c1 MG |
363 | break; |
364 | } | |
ab81f3fd | 365 | next = rb_next(&n->rb_node); |
923c42c1 MG |
366 | } |
367 | ||
368 | if (!found) { | |
66aeb6d5 | 369 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 370 | sleep(1); |
923c42c1 | 371 | } else |
1758af10 | 372 | perf_top__parse_source(top, found); |
923c42c1 MG |
373 | |
374 | out_free: | |
375 | free(buf); | |
376 | } | |
377 | ||
1758af10 | 378 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 379 | { |
091bd2e9 MG |
380 | char *name = NULL; |
381 | ||
1758af10 ACM |
382 | if (top->sym_filter_entry) { |
383 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
384 | name = sym->name; |
385 | } | |
386 | ||
387 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
388 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
389 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 390 | |
1758af10 | 391 | if (top->evlist->nr_entries > 1) |
7289f83c | 392 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 393 | |
1758af10 | 394 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 395 | |
1758af10 | 396 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
397 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
398 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 399 | |
8ffcda17 | 400 | fprintf(stdout, |
1a72cfa6 | 401 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 402 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
403 | fprintf(stdout, |
404 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
405 | top->hide_user_symbols ? "yes" : "no"); |
406 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
407 | fprintf(stdout, "\t[qQ] quit.\n"); |
408 | } | |
409 | ||
1758af10 | 410 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
411 | { |
412 | switch (c) { | |
413 | case 'd': | |
414 | case 'e': | |
415 | case 'f': | |
416 | case 'z': | |
417 | case 'q': | |
418 | case 'Q': | |
8ffcda17 ACM |
419 | case 'K': |
420 | case 'U': | |
6cff0e8d KS |
421 | case 'F': |
422 | case 's': | |
423 | case 'S': | |
091bd2e9 MG |
424 | return 1; |
425 | case 'E': | |
1758af10 | 426 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
427 | default: |
428 | break; | |
091bd2e9 MG |
429 | } |
430 | ||
431 | return 0; | |
923c42c1 MG |
432 | } |
433 | ||
11859e82 | 434 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 435 | { |
11859e82 ACM |
436 | bool ret = true; |
437 | ||
1758af10 | 438 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 439 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 440 | struct termios save; |
091bd2e9 | 441 | |
1758af10 | 442 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
443 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
444 | fflush(stdout); | |
445 | ||
3969cc09 | 446 | set_term_quiet_input(&save); |
091bd2e9 MG |
447 | |
448 | poll(&stdin_poll, 1, -1); | |
449 | c = getc(stdin); | |
450 | ||
451 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 452 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 453 | return ret; |
091bd2e9 MG |
454 | } |
455 | ||
923c42c1 MG |
456 | switch (c) { |
457 | case 'd': | |
1758af10 ACM |
458 | prompt_integer(&top->delay_secs, "Enter display delay"); |
459 | if (top->delay_secs < 1) | |
460 | top->delay_secs = 1; | |
923c42c1 MG |
461 | break; |
462 | case 'e': | |
1758af10 ACM |
463 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
464 | if (top->print_entries == 0) { | |
465 | struct sigaction act = { | |
466 | .sa_sigaction = perf_top__sig_winch, | |
467 | .sa_flags = SA_SIGINFO, | |
468 | }; | |
469 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
470 | sigaction(SIGWINCH, &act, NULL); | |
509605db | 471 | } else { |
3b6ed988 | 472 | signal(SIGWINCH, SIG_DFL); |
509605db | 473 | } |
923c42c1 MG |
474 | break; |
475 | case 'E': | |
1758af10 | 476 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
477 | /* Select 0 as the default event: */ |
478 | int counter = 0; | |
479 | ||
923c42c1 | 480 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 481 | |
0050f7aa | 482 | evlist__for_each(top->evlist, top->sym_evsel) |
7289f83c | 483 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 484 | |
ec52d976 | 485 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 486 | |
1758af10 | 487 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 488 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 489 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 490 | sleep(1); |
69aad6f1 | 491 | break; |
923c42c1 | 492 | } |
0050f7aa | 493 | evlist__for_each(top->evlist, top->sym_evsel) |
1758af10 | 494 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 495 | break; |
ec52d976 | 496 | } else |
0c21f736 | 497 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
498 | break; |
499 | case 'f': | |
1758af10 | 500 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
501 | break; |
502 | case 'F': | |
1758af10 ACM |
503 | prompt_percent(&top->sym_pcnt_filter, |
504 | "Enter details display event filter (percent)"); | |
923c42c1 | 505 | break; |
8ffcda17 | 506 | case 'K': |
1758af10 | 507 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 508 | break; |
923c42c1 MG |
509 | case 'q': |
510 | case 'Q': | |
511 | printf("exiting.\n"); | |
1758af10 ACM |
512 | if (top->dump_symtab) |
513 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
514 | ret = false; |
515 | break; | |
923c42c1 | 516 | case 's': |
1758af10 | 517 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
518 | break; |
519 | case 'S': | |
1758af10 | 520 | if (!top->sym_filter_entry) |
923c42c1 MG |
521 | break; |
522 | else { | |
1758af10 | 523 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 524 | |
1758af10 | 525 | top->sym_filter_entry = NULL; |
923c42c1 | 526 | __zero_source_counters(syme); |
923c42c1 MG |
527 | } |
528 | break; | |
8ffcda17 | 529 | case 'U': |
1758af10 | 530 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 531 | break; |
923c42c1 | 532 | case 'z': |
1758af10 | 533 | top->zero = !top->zero; |
923c42c1 | 534 | break; |
83a0944f IM |
535 | default: |
536 | break; | |
923c42c1 | 537 | } |
11859e82 ACM |
538 | |
539 | return ret; | |
923c42c1 MG |
540 | } |
541 | ||
ab81f3fd ACM |
542 | static void perf_top__sort_new_samples(void *arg) |
543 | { | |
544 | struct perf_top *t = arg; | |
4ea062ed ACM |
545 | struct hists *hists; |
546 | ||
ab81f3fd ACM |
547 | perf_top__reset_sample_counters(t); |
548 | ||
549 | if (t->evlist->selected != NULL) | |
550 | t->sym_evsel = t->evlist->selected; | |
551 | ||
4ea062ed ACM |
552 | hists = evsel__hists(t->sym_evsel); |
553 | ||
5d484f99 ACM |
554 | if (t->evlist->enabled) { |
555 | if (t->zero) { | |
556 | hists__delete_entries(hists); | |
557 | } else { | |
558 | hists__decay_entries(hists, t->hide_user_symbols, | |
559 | t->hide_kernel_symbols); | |
560 | } | |
701937bd NK |
561 | } |
562 | ||
4ea062ed | 563 | hists__collapse_resort(hists, NULL); |
740b97f9 | 564 | hists__output_resort(hists, NULL); |
ab81f3fd ACM |
565 | } |
566 | ||
1758af10 | 567 | static void *display_thread_tui(void *arg) |
c0443df1 | 568 | { |
0d37aa34 | 569 | struct perf_evsel *pos; |
1758af10 | 570 | struct perf_top *top = arg; |
ab81f3fd | 571 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
572 | struct hist_browser_timer hbt = { |
573 | .timer = perf_top__sort_new_samples, | |
574 | .arg = top, | |
575 | .refresh = top->delay_secs, | |
576 | }; | |
ab81f3fd | 577 | |
1758af10 | 578 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
579 | |
580 | /* | |
581 | * Initialize the uid_filter_str, in the future the TUI will allow | |
582 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
583 | * via --uid. | |
584 | */ | |
4ea062ed ACM |
585 | evlist__for_each(top->evlist, pos) { |
586 | struct hists *hists = evsel__hists(pos); | |
587 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
588 | } | |
0d37aa34 | 589 | |
13d1e536 NK |
590 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
591 | top->min_percent, | |
592 | &top->session->header.env); | |
ab81f3fd | 593 | |
11859e82 | 594 | done = 1; |
c0443df1 ACM |
595 | return NULL; |
596 | } | |
597 | ||
4a1a9971 JO |
598 | static void display_sig(int sig __maybe_unused) |
599 | { | |
600 | done = 1; | |
601 | } | |
602 | ||
603 | static void display_setup_sig(void) | |
604 | { | |
09f4d78a ACM |
605 | signal(SIGSEGV, sighandler_dump_stack); |
606 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
607 | signal(SIGINT, display_sig); |
608 | signal(SIGQUIT, display_sig); | |
609 | signal(SIGTERM, display_sig); | |
610 | } | |
611 | ||
1758af10 | 612 | static void *display_thread(void *arg) |
07800601 | 613 | { |
0f5486b5 | 614 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 615 | struct termios save; |
1758af10 | 616 | struct perf_top *top = arg; |
923c42c1 MG |
617 | int delay_msecs, c; |
618 | ||
4a1a9971 | 619 | display_setup_sig(); |
3af6e338 | 620 | pthread__unblock_sigwinch(); |
923c42c1 | 621 | repeat: |
1758af10 | 622 | delay_msecs = top->delay_secs * 1000; |
9398c484 | 623 | set_term_quiet_input(&save); |
923c42c1 MG |
624 | /* trash return*/ |
625 | getc(stdin); | |
07800601 | 626 | |
11859e82 | 627 | while (!done) { |
1758af10 | 628 | perf_top__print_sym_table(top); |
3af6e338 ACM |
629 | /* |
630 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
631 | * refresh screen in both cases. | |
632 | */ | |
633 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
634 | case 0: | |
635 | continue; | |
636 | case -1: | |
637 | if (errno == EINTR) | |
638 | continue; | |
639 | /* Fall trhu */ | |
640 | default: | |
11859e82 ACM |
641 | c = getc(stdin); |
642 | tcsetattr(0, TCSAFLUSH, &save); | |
643 | ||
644 | if (perf_top__handle_keypress(top, c)) | |
645 | goto repeat; | |
646 | done = 1; | |
3af6e338 ACM |
647 | } |
648 | } | |
07800601 | 649 | |
4a1a9971 | 650 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
651 | return NULL; |
652 | } | |
653 | ||
e7110b9f | 654 | static int symbol_filter(struct map *map, struct symbol *sym) |
07800601 | 655 | { |
de04687f ACM |
656 | const char *name = sym->name; |
657 | ||
e7110b9f ACM |
658 | if (!map->dso->kernel) |
659 | return 0; | |
3a3393ef AB |
660 | /* |
661 | * ppc64 uses function descriptors and appends a '.' to the | |
662 | * start of every instruction address. Remove it. | |
663 | */ | |
664 | if (name[0] == '.') | |
665 | name++; | |
666 | ||
de04687f ACM |
667 | if (!strcmp(name, "_text") || |
668 | !strcmp(name, "_etext") || | |
669 | !strcmp(name, "_sinittext") || | |
670 | !strncmp("init_module", name, 11) || | |
671 | !strncmp("cleanup_module", name, 14) || | |
672 | strstr(name, "_text_start") || | |
673 | strstr(name, "_text_end")) | |
07800601 | 674 | return 1; |
07800601 | 675 | |
82d1deb0 DA |
676 | if (symbol__is_idle(sym)) |
677 | sym->ignore = true; | |
07800601 | 678 | |
07800601 IM |
679 | return 0; |
680 | } | |
681 | ||
7c50391f NK |
682 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
683 | struct addr_location *al, bool single, | |
684 | void *arg) | |
685 | { | |
686 | struct perf_top *top = arg; | |
687 | struct hist_entry *he = iter->he; | |
688 | struct perf_evsel *evsel = iter->evsel; | |
689 | ||
690 | if (sort__has_sym && single) { | |
691 | u64 ip = al->addr; | |
692 | ||
693 | if (al->map) | |
694 | ip = al->map->unmap_ip(al->map, ip); | |
695 | ||
696 | perf_top__record_precise_ip(top, he, evsel->idx, ip); | |
697 | } | |
698 | ||
a18b027e AK |
699 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
700 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
701 | return 0; |
702 | } | |
703 | ||
1758af10 ACM |
704 | static void perf_event__process_sample(struct perf_tool *tool, |
705 | const union perf_event *event, | |
7b27509f | 706 | struct perf_evsel *evsel, |
8115d60c | 707 | struct perf_sample *sample, |
743eb868 | 708 | struct machine *machine) |
07800601 | 709 | { |
1758af10 | 710 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 711 | struct addr_location al; |
19d4ac3c | 712 | int err; |
5b2bb75a | 713 | |
23346f21 | 714 | if (!machine && perf_guest) { |
6b118e92 DA |
715 | static struct intlist *seen; |
716 | ||
717 | if (!seen) | |
ffe0fb76 | 718 | seen = intlist__new(NULL); |
6b118e92 | 719 | |
ef89325f | 720 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 721 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
722 | sample->pid); |
723 | intlist__add(seen, sample->pid); | |
6b118e92 | 724 | } |
a1645ce1 ZY |
725 | return; |
726 | } | |
727 | ||
0c095715 | 728 | if (!machine) { |
11859e82 | 729 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 730 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
731 | return; |
732 | } | |
733 | ||
8115d60c | 734 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 735 | top->exact_samples++; |
1676b8a0 | 736 | |
33db4568 | 737 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) |
1ed091c4 | 738 | return; |
07800601 | 739 | |
1758af10 | 740 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
741 | symbol_conf.kptr_restrict && |
742 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
743 | ui__warning( | |
744 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
745 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
746 | "Kernel%s samples will not be resolved.\n", | |
c6718350 | 747 | al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? |
5f6f5580 ACM |
748 | " modules" : ""); |
749 | if (use_browser <= 0) | |
750 | sleep(5); | |
1758af10 | 751 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
752 | } |
753 | ||
72b8fa17 | 754 | if (al.sym == NULL) { |
e4a338d0 | 755 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
756 | /* |
757 | * As we do lazy loading of symtabs we only will know if the | |
758 | * specified vmlinux file is invalid when we actually have a | |
759 | * hit in kernel space and then try to load it. So if we get | |
760 | * here and there are _no_ symbols in the DSO backing the | |
761 | * kernel map, bail out. | |
762 | * | |
763 | * We may never get here, for instance, if we use -K/ | |
764 | * --hide-kernel-symbols, even if the user specifies an | |
765 | * invalid --vmlinux ;-) | |
766 | */ | |
1758af10 | 767 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 768 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 769 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 | 770 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
771 | char serr[256]; |
772 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
773 | ui__warning("The %s file can't be used: %s\n%s", | |
774 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
775 | } else { |
776 | ui__warning("A vmlinux file was not found.\n%s", | |
777 | msg); | |
778 | } | |
779 | ||
780 | if (use_browser <= 0) | |
781 | sleep(5); | |
1758af10 | 782 | top->vmlinux_warned = true; |
72b8fa17 | 783 | } |
6cff0e8d KS |
784 | } |
785 | ||
ab81f3fd | 786 | if (al.sym == NULL || !al.sym->ignore) { |
4ea062ed | 787 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 788 | struct hist_entry_iter iter = { |
063bd936 NK |
789 | .evsel = evsel, |
790 | .sample = sample, | |
791 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 792 | }; |
70db7533 | 793 | |
7c50391f NK |
794 | if (symbol_conf.cumulate_callchain) |
795 | iter.ops = &hist_iter_cumulative; | |
796 | else | |
797 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 798 | |
4ea062ed | 799 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 800 | |
063bd936 | 801 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
802 | if (err < 0) |
803 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 804 | |
4ea062ed | 805 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 806 | } |
ab81f3fd | 807 | |
b91fc39f | 808 | addr_location__put(&al); |
07800601 IM |
809 | } |
810 | ||
1758af10 | 811 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 812 | { |
8d50e5b4 | 813 | struct perf_sample sample; |
7b27509f | 814 | struct perf_evsel *evsel; |
1758af10 | 815 | struct perf_session *session = top->session; |
8115d60c | 816 | union perf_event *event; |
743eb868 ACM |
817 | struct machine *machine; |
818 | u8 origin; | |
5538beca | 819 | int ret; |
07800601 | 820 | |
1758af10 | 821 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 822 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
823 | if (ret) { |
824 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 825 | goto next_event; |
5538beca | 826 | } |
04391deb | 827 | |
1758af10 | 828 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
829 | assert(evsel != NULL); |
830 | ||
743eb868 ACM |
831 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
832 | ||
5b2bb75a | 833 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 834 | ++top->samples; |
743eb868 ACM |
835 | |
836 | switch (origin) { | |
837 | case PERF_RECORD_MISC_USER: | |
1758af10 ACM |
838 | ++top->us_samples; |
839 | if (top->hide_user_symbols) | |
8e50d384 | 840 | goto next_event; |
34ba5122 | 841 | machine = &session->machines.host; |
743eb868 ACM |
842 | break; |
843 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
844 | ++top->kernel_samples; |
845 | if (top->hide_kernel_symbols) | |
8e50d384 | 846 | goto next_event; |
34ba5122 | 847 | machine = &session->machines.host; |
743eb868 ACM |
848 | break; |
849 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 850 | ++top->guest_kernel_samples; |
ef89325f AH |
851 | machine = perf_session__find_machine(session, |
852 | sample.pid); | |
743eb868 ACM |
853 | break; |
854 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 855 | ++top->guest_us_samples; |
743eb868 ACM |
856 | /* |
857 | * TODO: we don't process guest user from host side | |
858 | * except simple counting. | |
859 | */ | |
860 | /* Fall thru */ | |
861 | default: | |
8e50d384 | 862 | goto next_event; |
743eb868 ACM |
863 | } |
864 | ||
865 | ||
1758af10 ACM |
866 | if (event->header.type == PERF_RECORD_SAMPLE) { |
867 | perf_event__process_sample(&top->tool, event, evsel, | |
868 | &sample, machine); | |
869 | } else if (event->header.type < PERF_RECORD_MAX) { | |
4ea062ed | 870 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); |
162f0bef | 871 | machine__process_event(machine, event, &sample); |
7b27509f | 872 | } else |
75be989a | 873 | ++session->evlist->stats.nr_unknown_events; |
8e50d384 ZZ |
874 | next_event: |
875 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 876 | } |
07800601 IM |
877 | } |
878 | ||
1758af10 | 879 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 880 | { |
70db7533 ACM |
881 | int i; |
882 | ||
1758af10 ACM |
883 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
884 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
885 | } |
886 | ||
11859e82 | 887 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 888 | { |
56e52e85 | 889 | char msg[512]; |
6a4bb04c | 890 | struct perf_evsel *counter; |
1758af10 | 891 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 892 | struct record_opts *opts = &top->record_opts; |
727ab04e | 893 | |
2376c67a | 894 | perf_evlist__config(evlist, opts); |
7e4ff9e3 | 895 | |
0050f7aa | 896 | evlist__for_each(evlist, counter) { |
72cb7013 | 897 | try_again: |
1758af10 | 898 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 899 | top->evlist->threads) < 0) { |
56e52e85 | 900 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
d6d901c2 | 901 | if (verbose) |
c0a54341 | 902 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
903 | goto try_again; |
904 | } | |
c286c419 | 905 | |
56e52e85 ACM |
906 | perf_evsel__open_strerror(counter, &opts->target, |
907 | errno, msg, sizeof(msg)); | |
908 | ui__error("%s\n", msg); | |
c286c419 | 909 | goto out_err; |
d6d901c2 | 910 | } |
716c69fe | 911 | } |
70db7533 | 912 | |
2376c67a | 913 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 914 | ui__error("Failed to mmap with %d (%s)\n", |
809adea6 | 915 | errno, strerror_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
916 | goto out_err; |
917 | } | |
918 | ||
11859e82 | 919 | return 0; |
c286c419 ACM |
920 | |
921 | out_err: | |
11859e82 | 922 | return -1; |
716c69fe IM |
923 | } |
924 | ||
8f0f684b | 925 | static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) |
19d4ac3c | 926 | { |
8f0f684b | 927 | if (!sort__has_sym) { |
19d4ac3c | 928 | if (symbol_conf.use_callchain) { |
3780f488 | 929 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
930 | return -EINVAL; |
931 | } | |
2376c67a | 932 | } else if (callchain_param.mode != CHAIN_NONE) { |
19d4ac3c | 933 | if (callchain_register_param(&callchain_param) < 0) { |
3780f488 | 934 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
935 | return -EINVAL; |
936 | } | |
937 | } | |
938 | ||
939 | return 0; | |
940 | } | |
941 | ||
1758af10 | 942 | static int __cmd_top(struct perf_top *top) |
716c69fe | 943 | { |
b4006796 | 944 | struct record_opts *opts = &top->record_opts; |
716c69fe | 945 | pthread_t thread; |
19d4ac3c | 946 | int ret; |
f5fc1412 | 947 | |
6a4d98d7 | 948 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 949 | if (top->session == NULL) |
52e02834 | 950 | return -1; |
07800601 | 951 | |
36035f78 AH |
952 | machines__set_symbol_filter(&top->session->machines, symbol_filter); |
953 | ||
0d3942db | 954 | if (!objdump_path) { |
eebd0bfc | 955 | ret = perf_env__lookup_objdump(&top->session->header.env); |
0d3942db SB |
956 | if (ret) |
957 | goto out_delete; | |
958 | } | |
959 | ||
1758af10 | 960 | ret = perf_top__setup_sample_type(top); |
19d4ac3c ACM |
961 | if (ret) |
962 | goto out_delete; | |
963 | ||
a33fbd56 | 964 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
9d9cad76 | 965 | top->evlist->threads, false, opts->proc_map_timeout); |
11859e82 ACM |
966 | ret = perf_top__start_counters(top); |
967 | if (ret) | |
968 | goto out_delete; | |
969 | ||
1758af10 | 970 | top->session->evlist = top->evlist; |
7b56cce2 | 971 | perf_session__set_id_hdr_size(top->session); |
07800601 | 972 | |
2376c67a ACM |
973 | /* |
974 | * When perf is starting the traced process, all the events (apart from | |
975 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
976 | * prematurely enabling them. | |
977 | * | |
978 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
979 | * so leave the check here. | |
980 | */ | |
602ad878 | 981 | if (!target__none(&opts->target)) |
2376c67a ACM |
982 | perf_evlist__enable(top->evlist); |
983 | ||
2f01190a | 984 | /* Wait for a minimal set of events before starting the snapshot */ |
f66a889d | 985 | perf_evlist__poll(top->evlist, 100); |
2f01190a | 986 | |
1758af10 | 987 | perf_top__mmap_read(top); |
2f01190a | 988 | |
11859e82 | 989 | ret = -1; |
c0443df1 | 990 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 991 | display_thread), top)) { |
3780f488 | 992 | ui__error("Could not create display thread.\n"); |
11859e82 | 993 | goto out_delete; |
07800601 IM |
994 | } |
995 | ||
1758af10 | 996 | if (top->realtime_prio) { |
07800601 IM |
997 | struct sched_param param; |
998 | ||
1758af10 | 999 | param.sched_priority = top->realtime_prio; |
07800601 | 1000 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 1001 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 1002 | goto out_join; |
07800601 IM |
1003 | } |
1004 | } | |
1005 | ||
11859e82 | 1006 | while (!done) { |
1758af10 | 1007 | u64 hits = top->samples; |
07800601 | 1008 | |
1758af10 | 1009 | perf_top__mmap_read(top); |
07800601 | 1010 | |
1758af10 | 1011 | if (hits == top->samples) |
f66a889d | 1012 | ret = perf_evlist__poll(top->evlist, 100); |
07800601 IM |
1013 | } |
1014 | ||
11859e82 | 1015 | ret = 0; |
ae256fa2 JO |
1016 | out_join: |
1017 | pthread_join(thread, NULL); | |
19d4ac3c | 1018 | out_delete: |
1758af10 ACM |
1019 | perf_session__delete(top->session); |
1020 | top->session = NULL; | |
19d4ac3c | 1021 | |
11859e82 | 1022 | return ret; |
19d4ac3c ACM |
1023 | } |
1024 | ||
1025 | static int | |
ae779a63 | 1026 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1027 | { |
19d4ac3c | 1028 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1029 | return record_callchain_opt(opt, arg, unset); |
1030 | } | |
19d4ac3c | 1031 | |
ae779a63 JO |
1032 | static int |
1033 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1034 | { | |
1035 | symbol_conf.use_callchain = true; | |
2376c67a | 1036 | return record_parse_callchain_opt(opt, arg, unset); |
07800601 | 1037 | } |
b456bae0 | 1038 | |
eb853e80 JO |
1039 | static int perf_top_config(const char *var, const char *value, void *cb) |
1040 | { | |
eb853e80 | 1041 | if (!strcmp(var, "top.call-graph")) |
5a2e5e85 | 1042 | var = "call-graph.record-mode"; /* fall-through */ |
104ac991 NK |
1043 | if (!strcmp(var, "top.children")) { |
1044 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1045 | return 0; | |
1046 | } | |
eb853e80 JO |
1047 | |
1048 | return perf_default_config(var, value, cb); | |
1049 | } | |
1050 | ||
fa5df943 NK |
1051 | static int |
1052 | parse_percent_limit(const struct option *opt, const char *arg, | |
1053 | int unset __maybe_unused) | |
1054 | { | |
1055 | struct perf_top *top = opt->value; | |
1056 | ||
1057 | top->min_percent = strtof(arg, NULL); | |
1058 | return 0; | |
1059 | } | |
1060 | ||
1d037ca1 | 1061 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1758af10 | 1062 | { |
16ad2ffb | 1063 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1064 | struct perf_top top = { |
1065 | .count_filter = 5, | |
1066 | .delay_secs = 2, | |
2376c67a ACM |
1067 | .record_opts = { |
1068 | .mmap_pages = UINT_MAX, | |
1069 | .user_freq = UINT_MAX, | |
1070 | .user_interval = ULLONG_MAX, | |
1071 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1072 | .target = { |
2376c67a ACM |
1073 | .uses_mmap = true, |
1074 | }, | |
9d9cad76 | 1075 | .proc_map_timeout = 500, |
d1cb9fce | 1076 | }, |
5dbb6e81 | 1077 | .max_stack = PERF_MAX_STACK_DEPTH, |
2376c67a | 1078 | .sym_pcnt_filter = 5, |
1758af10 | 1079 | }; |
b4006796 | 1080 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1081 | struct target *target = &opts->target; |
1758af10 | 1082 | const struct option options[] = { |
8c3e10eb | 1083 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1084 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1085 | parse_events_option), |
2376c67a ACM |
1086 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1087 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1088 | "profile events on existing process id"), |
2376c67a | 1089 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1090 | "profile events on existing thread id"), |
2376c67a | 1091 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1092 | "system-wide collection from all CPUs"), |
2376c67a | 1093 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1094 | "list of cpus to monitor"), |
b32d133a ACM |
1095 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1096 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1097 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1098 | "don't load vmlinux even if found"), | |
8c3e10eb | 1099 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1100 | "hide kernel symbols"), |
994a1f78 JO |
1101 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1102 | "number of mmap data pages", | |
1103 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1104 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1105 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1106 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1107 | "number of seconds to delay between refreshes"), |
1758af10 | 1108 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1109 | "dump the symbol table used for profiling"), |
8c3e10eb | 1110 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1111 | "only display functions with more events than this"), |
bf80669e | 1112 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1113 | "put the counters into a counter group"), |
2376c67a ACM |
1114 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1115 | "child tasks do not inherit counters"), | |
1758af10 | 1116 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1117 | "symbol to annotate"), |
2376c67a ACM |
1118 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1119 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1120 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1121 | "display this many functions"), |
8c3e10eb | 1122 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1123 | "hide user symbols"), |
1758af10 ACM |
1124 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1125 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1126 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1127 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1128 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1129 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1130 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1131 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1132 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1133 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1134 | "Show a column with the number of samples"), | |
bf80669e | 1135 | OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, |
ae779a63 JO |
1136 | NULL, "enables call-graph recording", |
1137 | &callchain_opt), | |
1138 | OPT_CALLBACK(0, "call-graph", &top.record_opts, | |
1139 | "mode[,dump_size]", record_callchain_help, | |
1140 | &parse_callchain_opt), | |
1432ec34 NK |
1141 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1142 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1143 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1144 | "Set the maximum stack depth when parsing the callchain. " | |
1145 | "Default: " __stringify(PERF_MAX_STACK_DEPTH)), | |
b21484f1 GP |
1146 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1147 | "ignore callees of these functions in call graphs", | |
1148 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1149 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1150 | "Show a column with the sum of periods"), | |
1151 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1152 | "only consider symbols in these dsos"), | |
1153 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1154 | "only consider symbols in these comms"), | |
1155 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1156 | "only consider these symbols"), | |
64c6f0c7 ACM |
1157 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1158 | "Interleave source code with assembly code (default)"), | |
1159 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1160 | "Display raw encoding of assembly instructions (default)"), | |
763122ad AK |
1161 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1162 | "Enable kernel symbol demangling"), | |
0d3942db SB |
1163 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1164 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1165 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1166 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1167 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1168 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1169 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1170 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1171 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1172 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1173 | "width[,width...]", | |
1174 | "don't try to adjust column width, use these fixed values"), | |
9d9cad76 KL |
1175 | OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, |
1176 | "per thread proc mmap processing timeout in ms"), | |
a18b027e AK |
1177 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1178 | "branch any", "sample any taken branches", | |
1179 | parse_branch_stack), | |
1180 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1181 | "branch filter mask", "branch stack filter modes", | |
1182 | parse_branch_stack), | |
b456bae0 | 1183 | OPT_END() |
1758af10 | 1184 | }; |
be772842 ACM |
1185 | const char * const top_usage[] = { |
1186 | "perf top [<options>]", | |
1187 | NULL | |
1188 | }; | |
a635fc51 ACM |
1189 | int status = hists__init(); |
1190 | ||
1191 | if (status < 0) | |
1192 | return status; | |
b456bae0 | 1193 | |
334fe7a3 | 1194 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1195 | if (top.evlist == NULL) |
361c99a6 ACM |
1196 | return -ENOMEM; |
1197 | ||
eb853e80 JO |
1198 | perf_config(perf_top_config, &top); |
1199 | ||
b456bae0 IM |
1200 | argc = parse_options(argc, argv, options, top_usage, 0); |
1201 | if (argc) | |
1202 | usage_with_options(top_usage, options); | |
1203 | ||
512ae1bd | 1204 | sort__mode = SORT_MODE__TOP; |
6fe8c26d NK |
1205 | /* display thread wants entries to be collapsed in a different tree */ |
1206 | sort__need_collapse = 1; | |
ab81f3fd | 1207 | |
d37a92dc | 1208 | if (setup_sorting() < 0) { |
6fe8c26d NK |
1209 | if (sort_order) |
1210 | parse_options_usage(top_usage, options, "s", 1); | |
1211 | if (field_order) | |
1212 | parse_options_usage(sort_order ? NULL : top_usage, | |
1213 | options, "fields", 0); | |
d37a92dc NK |
1214 | goto out_delete_evlist; |
1215 | } | |
ab81f3fd | 1216 | |
1758af10 | 1217 | if (top.use_stdio) |
c0443df1 | 1218 | use_browser = 0; |
1758af10 | 1219 | else if (top.use_tui) |
c0443df1 ACM |
1220 | use_browser = 1; |
1221 | ||
1222 | setup_browser(false); | |
1223 | ||
602ad878 | 1224 | status = target__validate(target); |
16ad2ffb | 1225 | if (status) { |
602ad878 | 1226 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1227 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1228 | } |
1229 | ||
602ad878 | 1230 | status = target__parse_uid(target); |
16ad2ffb NK |
1231 | if (status) { |
1232 | int saved_errno = errno; | |
4bd0f2d2 | 1233 | |
602ad878 | 1234 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1235 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1236 | |
1237 | status = -saved_errno; | |
0d37aa34 | 1238 | goto out_delete_evlist; |
16ad2ffb | 1239 | } |
0d37aa34 | 1240 | |
602ad878 | 1241 | if (target__none(target)) |
2376c67a | 1242 | target->system_wide = true; |
10b47d54 | 1243 | |
2376c67a | 1244 | if (perf_evlist__create_maps(top.evlist, target) < 0) |
7e2ed097 ACM |
1245 | usage_with_options(top_usage, options); |
1246 | ||
8c3e10eb ACM |
1247 | if (!top.evlist->nr_entries && |
1248 | perf_evlist__add_default(top.evlist) < 0) { | |
3780f488 | 1249 | ui__error("Not enough memory for event selector list\n"); |
03ad9747 | 1250 | goto out_delete_evlist; |
69aad6f1 | 1251 | } |
5a8e5a30 | 1252 | |
d04b35f8 ACM |
1253 | symbol_conf.nr_events = top.evlist->nr_entries; |
1254 | ||
8c3e10eb ACM |
1255 | if (top.delay_secs < 1) |
1256 | top.delay_secs = 1; | |
2f335a02 | 1257 | |
b4006796 | 1258 | if (record_opts__config(opts)) { |
2376c67a | 1259 | status = -EINVAL; |
03ad9747 | 1260 | goto out_delete_evlist; |
69aad6f1 ACM |
1261 | } |
1262 | ||
0c21f736 | 1263 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1264 | |
1432ec34 NK |
1265 | if (!symbol_conf.use_callchain) { |
1266 | symbol_conf.cumulate_callchain = false; | |
1267 | perf_hpp__cancel_cumulate(); | |
1268 | } | |
1269 | ||
ab81f3fd | 1270 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1271 | |
1272 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
0a7e6d1b | 1273 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1274 | return -1; |
1275 | ||
08e71542 | 1276 | sort__setup_elide(stdout); |
ab81f3fd | 1277 | |
1758af10 | 1278 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1279 | if (top.print_entries == 0) { |
1758af10 ACM |
1280 | struct sigaction act = { |
1281 | .sa_sigaction = perf_top__sig_winch, | |
1282 | .sa_flags = SA_SIGINFO, | |
1283 | }; | |
1284 | perf_top__update_print_entries(&top); | |
1285 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1286 | } |
1287 | ||
1758af10 | 1288 | status = __cmd_top(&top); |
806fb630 | 1289 | |
0d37aa34 | 1290 | out_delete_evlist: |
8c3e10eb | 1291 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1292 | |
1293 | return status; | |
b456bae0 | 1294 | } |