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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> |
4b6ab94e | 37 | #include <subcmd/parse-options.h> |
b456bae0 | 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 | ||
531d2410 | 70 | #include <linux/stringify.h> |
07800601 IM |
71 | #include <linux/types.h> |
72 | ||
11859e82 ACM |
73 | static volatile int done; |
74 | ||
933cbb1c NK |
75 | #define HEADER_LINE_NR 5 |
76 | ||
1758af10 | 77 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 78 | { |
933cbb1c | 79 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
80 | } |
81 | ||
1d037ca1 IT |
82 | static void perf_top__sig_winch(int sig __maybe_unused, |
83 | siginfo_t *info __maybe_unused, void *arg) | |
3b6ed988 | 84 | { |
1758af10 ACM |
85 | struct perf_top *top = arg; |
86 | ||
87 | get_term_dimensions(&top->winsize); | |
88 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
89 | } |
90 | ||
1758af10 | 91 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 MG |
92 | { |
93 | struct symbol *sym; | |
ce6f4fab | 94 | struct annotation *notes; |
439d473b | 95 | struct map *map; |
36532461 | 96 | int err = -1; |
923c42c1 | 97 | |
ab81f3fd | 98 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
99 | return -1; |
100 | ||
ab81f3fd ACM |
101 | sym = he->ms.sym; |
102 | map = he->ms.map; | |
b0a9ab62 ACM |
103 | |
104 | /* | |
105 | * We can't annotate with just /proc/kallsyms | |
106 | */ | |
bbb7f846 AH |
107 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
108 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
109 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
110 | "path\n", sym->name); | |
111 | sleep(1); | |
b0a9ab62 | 112 | return -1; |
b269876c ACM |
113 | } |
114 | ||
ce6f4fab ACM |
115 | notes = symbol__annotation(sym); |
116 | if (notes->src != NULL) { | |
117 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
118 | goto out_assign; |
119 | } | |
923c42c1 | 120 | |
ce6f4fab | 121 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 122 | |
d04b35f8 | 123 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 124 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
125 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
126 | sym->name); | |
ce6f4fab | 127 | sleep(1); |
c97cf422 | 128 | return err; |
923c42c1 | 129 | } |
36532461 | 130 | |
ab81f3fd | 131 | err = symbol__annotate(sym, map, 0); |
36532461 | 132 | if (err == 0) { |
923c42c1 | 133 | out_assign: |
1758af10 | 134 | top->sym_filter_entry = he; |
36532461 | 135 | } |
c97cf422 | 136 | |
ce6f4fab | 137 | pthread_mutex_unlock(¬es->lock); |
36532461 | 138 | return err; |
923c42c1 MG |
139 | } |
140 | ||
ab81f3fd | 141 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 142 | { |
ab81f3fd | 143 | struct symbol *sym = he->ms.sym; |
36532461 | 144 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
145 | } |
146 | ||
31d68e7b ACM |
147 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
148 | { | |
149 | struct utsname uts; | |
150 | int err = uname(&uts); | |
151 | ||
152 | ui__warning("Out of bounds address found:\n\n" | |
153 | "Addr: %" PRIx64 "\n" | |
154 | "DSO: %s %c\n" | |
155 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
156 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
157 | "Arch: %s\n" | |
158 | "Kernel: %s\n" | |
159 | "Tools: %s\n\n" | |
160 | "Not all samples will be on the annotation output.\n\n" | |
161 | "Please report to linux-kernel@vger.kernel.org\n", | |
162 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
163 | map->start, map->end, sym->start, sym->end, | |
164 | sym->binding == STB_GLOBAL ? 'g' : | |
165 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
166 | err ? "[unknown]" : uts.machine, | |
167 | err ? "[unknown]" : uts.release, perf_version_string); | |
168 | if (use_browser <= 0) | |
169 | sleep(5); | |
48000a1a | 170 | |
31d68e7b ACM |
171 | map->erange_warned = true; |
172 | } | |
173 | ||
1758af10 ACM |
174 | static void perf_top__record_precise_ip(struct perf_top *top, |
175 | struct hist_entry *he, | |
176 | int counter, u64 ip) | |
923c42c1 | 177 | { |
ce6f4fab | 178 | struct annotation *notes; |
beefb8d0 | 179 | struct symbol *sym = he->ms.sym; |
48c65bda | 180 | int err = 0; |
ce6f4fab | 181 | |
beefb8d0 NK |
182 | if (sym == NULL || (use_browser == 0 && |
183 | (top->sym_filter_entry == NULL || | |
184 | top->sym_filter_entry->ms.sym != sym))) | |
923c42c1 MG |
185 | return; |
186 | ||
ce6f4fab ACM |
187 | notes = symbol__annotation(sym); |
188 | ||
189 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
190 | return; |
191 | ||
448f13b2 | 192 | err = hist_entry__inc_addr_samples(he, counter, ip); |
c7ad21af | 193 | |
ce6f4fab | 194 | pthread_mutex_unlock(¬es->lock); |
31d68e7b | 195 | |
151ee834 NK |
196 | if (unlikely(err)) { |
197 | /* | |
198 | * This function is now called with he->hists->lock held. | |
199 | * Release it before going to sleep. | |
200 | */ | |
201 | pthread_mutex_unlock(&he->hists->lock); | |
202 | ||
203 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
204 | ui__warn_map_erange(he->ms.map, sym, ip); | |
205 | else if (err == -ENOMEM) { | |
206 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
207 | sym->name); | |
208 | sleep(1); | |
209 | } | |
210 | ||
211 | pthread_mutex_lock(&he->hists->lock); | |
b66d8c0c | 212 | } |
923c42c1 MG |
213 | } |
214 | ||
1758af10 | 215 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 216 | { |
1758af10 | 217 | struct hist_entry *he = top->sym_filter_entry; |
ce6f4fab | 218 | struct annotation *notes; |
923c42c1 | 219 | struct symbol *symbol; |
36532461 | 220 | int more; |
923c42c1 | 221 | |
ab81f3fd | 222 | if (!he) |
923c42c1 MG |
223 | return; |
224 | ||
ab81f3fd | 225 | symbol = he->ms.sym; |
ce6f4fab ACM |
226 | notes = symbol__annotation(symbol); |
227 | ||
228 | pthread_mutex_lock(¬es->lock); | |
229 | ||
230 | if (notes->src == NULL) | |
231 | goto out_unlock; | |
923c42c1 | 232 | |
7289f83c | 233 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 234 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 235 | |
db8fd07a | 236 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 | 237 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
5d484f99 ACM |
238 | |
239 | if (top->evlist->enabled) { | |
240 | if (top->zero) | |
241 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
242 | else | |
243 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
244 | } | |
36532461 | 245 | if (more != 0) |
923c42c1 | 246 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
247 | out_unlock: |
248 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 249 | } |
07800601 | 250 | |
1758af10 | 251 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 252 | { |
8c3e10eb ACM |
253 | char bf[160]; |
254 | int printed = 0; | |
1758af10 | 255 | const int win_width = top->winsize.ws_col - 1; |
452ce03b JO |
256 | struct perf_evsel *evsel = top->sym_evsel; |
257 | struct hists *hists = evsel__hists(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); |
452ce03b | 293 | perf_evsel__output_resort(evsel, 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; | |
452ce03b | 545 | struct perf_evsel *evsel = t->sym_evsel; |
4ea062ed ACM |
546 | struct hists *hists; |
547 | ||
ab81f3fd ACM |
548 | perf_top__reset_sample_counters(t); |
549 | ||
550 | if (t->evlist->selected != NULL) | |
551 | t->sym_evsel = t->evlist->selected; | |
552 | ||
452ce03b | 553 | hists = evsel__hists(evsel); |
4ea062ed | 554 | |
5d484f99 ACM |
555 | if (t->evlist->enabled) { |
556 | if (t->zero) { | |
557 | hists__delete_entries(hists); | |
558 | } else { | |
559 | hists__decay_entries(hists, t->hide_user_symbols, | |
560 | t->hide_kernel_symbols); | |
561 | } | |
701937bd NK |
562 | } |
563 | ||
4ea062ed | 564 | hists__collapse_resort(hists, NULL); |
452ce03b | 565 | perf_evsel__output_resort(evsel, NULL); |
ab81f3fd ACM |
566 | } |
567 | ||
1758af10 | 568 | static void *display_thread_tui(void *arg) |
c0443df1 | 569 | { |
0d37aa34 | 570 | struct perf_evsel *pos; |
1758af10 | 571 | struct perf_top *top = arg; |
ab81f3fd | 572 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
573 | struct hist_browser_timer hbt = { |
574 | .timer = perf_top__sort_new_samples, | |
575 | .arg = top, | |
576 | .refresh = top->delay_secs, | |
577 | }; | |
ab81f3fd | 578 | |
1758af10 | 579 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
580 | |
581 | /* | |
582 | * Initialize the uid_filter_str, in the future the TUI will allow | |
583 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
584 | * via --uid. | |
585 | */ | |
4ea062ed ACM |
586 | evlist__for_each(top->evlist, pos) { |
587 | struct hists *hists = evsel__hists(pos); | |
588 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
589 | } | |
0d37aa34 | 590 | |
13d1e536 NK |
591 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
592 | top->min_percent, | |
593 | &top->session->header.env); | |
ab81f3fd | 594 | |
11859e82 | 595 | done = 1; |
c0443df1 ACM |
596 | return NULL; |
597 | } | |
598 | ||
4a1a9971 JO |
599 | static void display_sig(int sig __maybe_unused) |
600 | { | |
601 | done = 1; | |
602 | } | |
603 | ||
604 | static void display_setup_sig(void) | |
605 | { | |
09f4d78a ACM |
606 | signal(SIGSEGV, sighandler_dump_stack); |
607 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
608 | signal(SIGINT, display_sig); |
609 | signal(SIGQUIT, display_sig); | |
610 | signal(SIGTERM, display_sig); | |
611 | } | |
612 | ||
1758af10 | 613 | static void *display_thread(void *arg) |
07800601 | 614 | { |
0f5486b5 | 615 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 616 | struct termios save; |
1758af10 | 617 | struct perf_top *top = arg; |
923c42c1 MG |
618 | int delay_msecs, c; |
619 | ||
4a1a9971 | 620 | display_setup_sig(); |
3af6e338 | 621 | pthread__unblock_sigwinch(); |
923c42c1 | 622 | repeat: |
1758af10 | 623 | delay_msecs = top->delay_secs * 1000; |
9398c484 | 624 | set_term_quiet_input(&save); |
923c42c1 MG |
625 | /* trash return*/ |
626 | getc(stdin); | |
07800601 | 627 | |
11859e82 | 628 | while (!done) { |
1758af10 | 629 | perf_top__print_sym_table(top); |
3af6e338 ACM |
630 | /* |
631 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
632 | * refresh screen in both cases. | |
633 | */ | |
634 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
635 | case 0: | |
636 | continue; | |
637 | case -1: | |
638 | if (errno == EINTR) | |
639 | continue; | |
640 | /* Fall trhu */ | |
641 | default: | |
11859e82 ACM |
642 | c = getc(stdin); |
643 | tcsetattr(0, TCSAFLUSH, &save); | |
644 | ||
645 | if (perf_top__handle_keypress(top, c)) | |
646 | goto repeat; | |
647 | done = 1; | |
3af6e338 ACM |
648 | } |
649 | } | |
07800601 | 650 | |
4a1a9971 | 651 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
652 | return NULL; |
653 | } | |
654 | ||
e7110b9f | 655 | static int symbol_filter(struct map *map, struct symbol *sym) |
07800601 | 656 | { |
de04687f ACM |
657 | const char *name = sym->name; |
658 | ||
cfc5acd4 | 659 | if (!__map__is_kernel(map)) |
e7110b9f | 660 | return 0; |
3a3393ef AB |
661 | /* |
662 | * ppc64 uses function descriptors and appends a '.' to the | |
663 | * start of every instruction address. Remove it. | |
664 | */ | |
665 | if (name[0] == '.') | |
666 | name++; | |
667 | ||
de04687f ACM |
668 | if (!strcmp(name, "_text") || |
669 | !strcmp(name, "_etext") || | |
670 | !strcmp(name, "_sinittext") || | |
671 | !strncmp("init_module", name, 11) || | |
672 | !strncmp("cleanup_module", name, 14) || | |
673 | strstr(name, "_text_start") || | |
674 | strstr(name, "_text_end")) | |
07800601 | 675 | return 1; |
07800601 | 676 | |
82d1deb0 DA |
677 | if (symbol__is_idle(sym)) |
678 | sym->ignore = true; | |
07800601 | 679 | |
07800601 IM |
680 | return 0; |
681 | } | |
682 | ||
7c50391f NK |
683 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
684 | struct addr_location *al, bool single, | |
685 | void *arg) | |
686 | { | |
687 | struct perf_top *top = arg; | |
688 | struct hist_entry *he = iter->he; | |
689 | struct perf_evsel *evsel = iter->evsel; | |
690 | ||
2e0453af | 691 | if (perf_hpp_list.sym && single) |
64226bcf | 692 | perf_top__record_precise_ip(top, he, evsel->idx, al->addr); |
7c50391f | 693 | |
a18b027e AK |
694 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
695 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
696 | return 0; |
697 | } | |
698 | ||
1758af10 ACM |
699 | static void perf_event__process_sample(struct perf_tool *tool, |
700 | const union perf_event *event, | |
7b27509f | 701 | struct perf_evsel *evsel, |
8115d60c | 702 | struct perf_sample *sample, |
743eb868 | 703 | struct machine *machine) |
07800601 | 704 | { |
1758af10 | 705 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 706 | struct addr_location al; |
19d4ac3c | 707 | int err; |
5b2bb75a | 708 | |
23346f21 | 709 | if (!machine && perf_guest) { |
6b118e92 DA |
710 | static struct intlist *seen; |
711 | ||
712 | if (!seen) | |
ffe0fb76 | 713 | seen = intlist__new(NULL); |
6b118e92 | 714 | |
ef89325f | 715 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 716 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
717 | sample->pid); |
718 | intlist__add(seen, sample->pid); | |
6b118e92 | 719 | } |
a1645ce1 ZY |
720 | return; |
721 | } | |
722 | ||
0c095715 | 723 | if (!machine) { |
11859e82 | 724 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 725 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
726 | return; |
727 | } | |
728 | ||
8115d60c | 729 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 730 | top->exact_samples++; |
1676b8a0 | 731 | |
bb3eb566 | 732 | if (machine__resolve(machine, &al, sample) < 0) |
1ed091c4 | 733 | return; |
07800601 | 734 | |
1758af10 | 735 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
736 | symbol_conf.kptr_restrict && |
737 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
738 | ui__warning( | |
739 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
740 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
741 | "Kernel%s samples will not be resolved.\n", | |
c6718350 | 742 | al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? |
5f6f5580 ACM |
743 | " modules" : ""); |
744 | if (use_browser <= 0) | |
745 | sleep(5); | |
1758af10 | 746 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
747 | } |
748 | ||
72b8fa17 | 749 | if (al.sym == NULL) { |
e4a338d0 | 750 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
751 | /* |
752 | * As we do lazy loading of symtabs we only will know if the | |
753 | * specified vmlinux file is invalid when we actually have a | |
754 | * hit in kernel space and then try to load it. So if we get | |
755 | * here and there are _no_ symbols in the DSO backing the | |
756 | * kernel map, bail out. | |
757 | * | |
758 | * We may never get here, for instance, if we use -K/ | |
759 | * --hide-kernel-symbols, even if the user specifies an | |
760 | * invalid --vmlinux ;-) | |
761 | */ | |
1758af10 | 762 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 763 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 764 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 | 765 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
766 | char serr[256]; |
767 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
768 | ui__warning("The %s file can't be used: %s\n%s", | |
769 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
770 | } else { |
771 | ui__warning("A vmlinux file was not found.\n%s", | |
772 | msg); | |
773 | } | |
774 | ||
775 | if (use_browser <= 0) | |
776 | sleep(5); | |
1758af10 | 777 | top->vmlinux_warned = true; |
72b8fa17 | 778 | } |
6cff0e8d KS |
779 | } |
780 | ||
ab81f3fd | 781 | if (al.sym == NULL || !al.sym->ignore) { |
4ea062ed | 782 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 783 | struct hist_entry_iter iter = { |
063bd936 NK |
784 | .evsel = evsel, |
785 | .sample = sample, | |
786 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 787 | }; |
70db7533 | 788 | |
7c50391f NK |
789 | if (symbol_conf.cumulate_callchain) |
790 | iter.ops = &hist_iter_cumulative; | |
791 | else | |
792 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 793 | |
4ea062ed | 794 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 795 | |
063bd936 | 796 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
797 | if (err < 0) |
798 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 799 | |
4ea062ed | 800 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 801 | } |
ab81f3fd | 802 | |
b91fc39f | 803 | addr_location__put(&al); |
07800601 IM |
804 | } |
805 | ||
1758af10 | 806 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 807 | { |
8d50e5b4 | 808 | struct perf_sample sample; |
7b27509f | 809 | struct perf_evsel *evsel; |
1758af10 | 810 | struct perf_session *session = top->session; |
8115d60c | 811 | union perf_event *event; |
743eb868 | 812 | struct machine *machine; |
5538beca | 813 | int ret; |
07800601 | 814 | |
1758af10 | 815 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 816 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
817 | if (ret) { |
818 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 819 | goto next_event; |
5538beca | 820 | } |
04391deb | 821 | |
1758af10 | 822 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
823 | assert(evsel != NULL); |
824 | ||
5b2bb75a | 825 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 826 | ++top->samples; |
743eb868 | 827 | |
473398a2 | 828 | switch (sample.cpumode) { |
743eb868 | 829 | case PERF_RECORD_MISC_USER: |
1758af10 ACM |
830 | ++top->us_samples; |
831 | if (top->hide_user_symbols) | |
8e50d384 | 832 | goto next_event; |
34ba5122 | 833 | machine = &session->machines.host; |
743eb868 ACM |
834 | break; |
835 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
836 | ++top->kernel_samples; |
837 | if (top->hide_kernel_symbols) | |
8e50d384 | 838 | goto next_event; |
34ba5122 | 839 | machine = &session->machines.host; |
743eb868 ACM |
840 | break; |
841 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 842 | ++top->guest_kernel_samples; |
ef89325f AH |
843 | machine = perf_session__find_machine(session, |
844 | sample.pid); | |
743eb868 ACM |
845 | break; |
846 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 847 | ++top->guest_us_samples; |
743eb868 ACM |
848 | /* |
849 | * TODO: we don't process guest user from host side | |
850 | * except simple counting. | |
851 | */ | |
8e50d384 | 852 | goto next_event; |
4b37af59 NK |
853 | default: |
854 | if (event->header.type == PERF_RECORD_SAMPLE) | |
855 | goto next_event; | |
856 | machine = &session->machines.host; | |
857 | break; | |
743eb868 ACM |
858 | } |
859 | ||
860 | ||
1758af10 ACM |
861 | if (event->header.type == PERF_RECORD_SAMPLE) { |
862 | perf_event__process_sample(&top->tool, event, evsel, | |
863 | &sample, machine); | |
864 | } else if (event->header.type < PERF_RECORD_MAX) { | |
4ea062ed | 865 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); |
162f0bef | 866 | machine__process_event(machine, event, &sample); |
7b27509f | 867 | } else |
75be989a | 868 | ++session->evlist->stats.nr_unknown_events; |
8e50d384 ZZ |
869 | next_event: |
870 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 871 | } |
07800601 IM |
872 | } |
873 | ||
1758af10 | 874 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 875 | { |
70db7533 ACM |
876 | int i; |
877 | ||
1758af10 ACM |
878 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
879 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
880 | } |
881 | ||
11859e82 | 882 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 883 | { |
56e52e85 | 884 | char msg[512]; |
6a4bb04c | 885 | struct perf_evsel *counter; |
1758af10 | 886 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 887 | struct record_opts *opts = &top->record_opts; |
727ab04e | 888 | |
e68ae9cf | 889 | perf_evlist__config(evlist, opts, &callchain_param); |
7e4ff9e3 | 890 | |
0050f7aa | 891 | evlist__for_each(evlist, counter) { |
72cb7013 | 892 | try_again: |
1758af10 | 893 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 894 | top->evlist->threads) < 0) { |
56e52e85 | 895 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
d6d901c2 | 896 | if (verbose) |
c0a54341 | 897 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
898 | goto try_again; |
899 | } | |
c286c419 | 900 | |
56e52e85 ACM |
901 | perf_evsel__open_strerror(counter, &opts->target, |
902 | errno, msg, sizeof(msg)); | |
903 | ui__error("%s\n", msg); | |
c286c419 | 904 | goto out_err; |
d6d901c2 | 905 | } |
716c69fe | 906 | } |
70db7533 | 907 | |
2376c67a | 908 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 909 | ui__error("Failed to mmap with %d (%s)\n", |
809adea6 | 910 | errno, strerror_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
911 | goto out_err; |
912 | } | |
913 | ||
11859e82 | 914 | return 0; |
c286c419 ACM |
915 | |
916 | out_err: | |
11859e82 | 917 | return -1; |
716c69fe IM |
918 | } |
919 | ||
e3815264 | 920 | static int callchain_param__setup_sample_type(struct callchain_param *callchain) |
19d4ac3c | 921 | { |
2e0453af | 922 | if (!perf_hpp_list.sym) { |
e3815264 | 923 | if (callchain->enabled) { |
3780f488 | 924 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
925 | return -EINVAL; |
926 | } | |
e3815264 ACM |
927 | } else if (callchain->mode != CHAIN_NONE) { |
928 | if (callchain_register_param(callchain) < 0) { | |
3780f488 | 929 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
930 | return -EINVAL; |
931 | } | |
932 | } | |
933 | ||
934 | return 0; | |
935 | } | |
936 | ||
1758af10 | 937 | static int __cmd_top(struct perf_top *top) |
716c69fe | 938 | { |
b4006796 | 939 | struct record_opts *opts = &top->record_opts; |
716c69fe | 940 | pthread_t thread; |
19d4ac3c | 941 | int ret; |
f5fc1412 | 942 | |
6a4d98d7 | 943 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 944 | if (top->session == NULL) |
52e02834 | 945 | return -1; |
07800601 | 946 | |
36035f78 AH |
947 | machines__set_symbol_filter(&top->session->machines, symbol_filter); |
948 | ||
0d3942db | 949 | if (!objdump_path) { |
eebd0bfc | 950 | ret = perf_env__lookup_objdump(&top->session->header.env); |
0d3942db SB |
951 | if (ret) |
952 | goto out_delete; | |
953 | } | |
954 | ||
e3815264 | 955 | ret = callchain_param__setup_sample_type(&callchain_param); |
19d4ac3c ACM |
956 | if (ret) |
957 | goto out_delete; | |
958 | ||
9d8b172f | 959 | if (perf_session__register_idle_thread(top->session) < 0) |
c53d138d NK |
960 | goto out_delete; |
961 | ||
a33fbd56 | 962 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
9d9cad76 | 963 | top->evlist->threads, false, opts->proc_map_timeout); |
2e7ea3ab KL |
964 | |
965 | if (sort__has_socket) { | |
966 | ret = perf_env__read_cpu_topology_map(&perf_env); | |
967 | if (ret < 0) | |
968 | goto out_err_cpu_topo; | |
969 | } | |
970 | ||
11859e82 ACM |
971 | ret = perf_top__start_counters(top); |
972 | if (ret) | |
973 | goto out_delete; | |
974 | ||
1758af10 | 975 | top->session->evlist = top->evlist; |
7b56cce2 | 976 | perf_session__set_id_hdr_size(top->session); |
07800601 | 977 | |
2376c67a ACM |
978 | /* |
979 | * When perf is starting the traced process, all the events (apart from | |
980 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
981 | * prematurely enabling them. | |
982 | * | |
983 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
984 | * so leave the check here. | |
985 | */ | |
602ad878 | 986 | if (!target__none(&opts->target)) |
2376c67a ACM |
987 | perf_evlist__enable(top->evlist); |
988 | ||
2f01190a | 989 | /* Wait for a minimal set of events before starting the snapshot */ |
f66a889d | 990 | perf_evlist__poll(top->evlist, 100); |
2f01190a | 991 | |
1758af10 | 992 | perf_top__mmap_read(top); |
2f01190a | 993 | |
11859e82 | 994 | ret = -1; |
c0443df1 | 995 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 996 | display_thread), top)) { |
3780f488 | 997 | ui__error("Could not create display thread.\n"); |
11859e82 | 998 | goto out_delete; |
07800601 IM |
999 | } |
1000 | ||
1758af10 | 1001 | if (top->realtime_prio) { |
07800601 IM |
1002 | struct sched_param param; |
1003 | ||
1758af10 | 1004 | param.sched_priority = top->realtime_prio; |
07800601 | 1005 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 1006 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 1007 | goto out_join; |
07800601 IM |
1008 | } |
1009 | } | |
1010 | ||
11859e82 | 1011 | while (!done) { |
1758af10 | 1012 | u64 hits = top->samples; |
07800601 | 1013 | |
1758af10 | 1014 | perf_top__mmap_read(top); |
07800601 | 1015 | |
1758af10 | 1016 | if (hits == top->samples) |
f66a889d | 1017 | ret = perf_evlist__poll(top->evlist, 100); |
07800601 IM |
1018 | } |
1019 | ||
11859e82 | 1020 | ret = 0; |
ae256fa2 JO |
1021 | out_join: |
1022 | pthread_join(thread, NULL); | |
19d4ac3c | 1023 | out_delete: |
1758af10 ACM |
1024 | perf_session__delete(top->session); |
1025 | top->session = NULL; | |
19d4ac3c | 1026 | |
11859e82 | 1027 | return ret; |
2e7ea3ab KL |
1028 | |
1029 | out_err_cpu_topo: { | |
1030 | char errbuf[BUFSIZ]; | |
1031 | const char *err = strerror_r(-ret, errbuf, sizeof(errbuf)); | |
1032 | ||
1033 | ui__error("Could not read the CPU topology map: %s\n", err); | |
1034 | goto out_delete; | |
1035 | } | |
19d4ac3c ACM |
1036 | } |
1037 | ||
1038 | static int | |
ae779a63 | 1039 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1040 | { |
19d4ac3c | 1041 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1042 | return record_callchain_opt(opt, arg, unset); |
1043 | } | |
19d4ac3c | 1044 | |
ae779a63 JO |
1045 | static int |
1046 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1047 | { | |
2ddd5c04 | 1048 | struct callchain_param *callchain = opt->value; |
a2c10d39 | 1049 | |
2ddd5c04 ACM |
1050 | callchain->enabled = !unset; |
1051 | callchain->record_mode = CALLCHAIN_FP; | |
a2c10d39 NK |
1052 | |
1053 | /* | |
1054 | * --no-call-graph | |
1055 | */ | |
1056 | if (unset) { | |
1057 | symbol_conf.use_callchain = false; | |
2ddd5c04 | 1058 | callchain->record_mode = CALLCHAIN_NONE; |
a2c10d39 NK |
1059 | return 0; |
1060 | } | |
1061 | ||
1062 | return parse_callchain_top_opt(arg); | |
07800601 | 1063 | } |
b456bae0 | 1064 | |
b8cbb349 | 1065 | static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) |
eb853e80 | 1066 | { |
eb853e80 | 1067 | if (!strcmp(var, "top.call-graph")) |
5a2e5e85 | 1068 | var = "call-graph.record-mode"; /* fall-through */ |
104ac991 NK |
1069 | if (!strcmp(var, "top.children")) { |
1070 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1071 | return 0; | |
1072 | } | |
eb853e80 | 1073 | |
b8cbb349 | 1074 | return 0; |
eb853e80 JO |
1075 | } |
1076 | ||
fa5df943 NK |
1077 | static int |
1078 | parse_percent_limit(const struct option *opt, const char *arg, | |
1079 | int unset __maybe_unused) | |
1080 | { | |
1081 | struct perf_top *top = opt->value; | |
1082 | ||
1083 | top->min_percent = strtof(arg, NULL); | |
1084 | return 0; | |
1085 | } | |
1086 | ||
76a26549 NK |
1087 | const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP |
1088 | "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; | |
a2c10d39 | 1089 | |
1d037ca1 | 1090 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1758af10 | 1091 | { |
16ad2ffb | 1092 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1093 | struct perf_top top = { |
1094 | .count_filter = 5, | |
1095 | .delay_secs = 2, | |
2376c67a ACM |
1096 | .record_opts = { |
1097 | .mmap_pages = UINT_MAX, | |
1098 | .user_freq = UINT_MAX, | |
1099 | .user_interval = ULLONG_MAX, | |
1100 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1101 | .target = { |
2376c67a ACM |
1102 | .uses_mmap = true, |
1103 | }, | |
9d9cad76 | 1104 | .proc_map_timeout = 500, |
d1cb9fce | 1105 | }, |
4cb93446 | 1106 | .max_stack = sysctl_perf_event_max_stack, |
2376c67a | 1107 | .sym_pcnt_filter = 5, |
1758af10 | 1108 | }; |
b4006796 | 1109 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1110 | struct target *target = &opts->target; |
1758af10 | 1111 | const struct option options[] = { |
8c3e10eb | 1112 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1113 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1114 | parse_events_option), |
2376c67a ACM |
1115 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1116 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1117 | "profile events on existing process id"), |
2376c67a | 1118 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1119 | "profile events on existing thread id"), |
2376c67a | 1120 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1121 | "system-wide collection from all CPUs"), |
2376c67a | 1122 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1123 | "list of cpus to monitor"), |
b32d133a ACM |
1124 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1125 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1126 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1127 | "don't load vmlinux even if found"), | |
8c3e10eb | 1128 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1129 | "hide kernel symbols"), |
994a1f78 JO |
1130 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1131 | "number of mmap data pages", | |
1132 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1133 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1134 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1135 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1136 | "number of seconds to delay between refreshes"), |
1758af10 | 1137 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1138 | "dump the symbol table used for profiling"), |
8c3e10eb | 1139 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1140 | "only display functions with more events than this"), |
bf80669e | 1141 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1142 | "put the counters into a counter group"), |
2376c67a ACM |
1143 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1144 | "child tasks do not inherit counters"), | |
1758af10 | 1145 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1146 | "symbol to annotate"), |
2376c67a ACM |
1147 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1148 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1149 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1150 | "display this many functions"), |
8c3e10eb | 1151 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1152 | "hide user symbols"), |
1758af10 ACM |
1153 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1154 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1155 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1156 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1157 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1158 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1159 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1160 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1161 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1162 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1163 | "Show a column with the number of samples"), | |
2ddd5c04 | 1164 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
a2c10d39 | 1165 | NULL, "enables call-graph recording and display", |
ae779a63 | 1166 | &callchain_opt), |
2ddd5c04 | 1167 | OPT_CALLBACK(0, "call-graph", &callchain_param, |
76a26549 | 1168 | "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", |
a2c10d39 | 1169 | top_callchain_help, &parse_callchain_opt), |
1432ec34 NK |
1170 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1171 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1172 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1173 | "Set the maximum stack depth when parsing the callchain. " | |
4cb93446 | 1174 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
b21484f1 GP |
1175 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1176 | "ignore callees of these functions in call graphs", | |
1177 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1178 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1179 | "Show a column with the sum of periods"), | |
1180 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1181 | "only consider symbols in these dsos"), | |
1182 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1183 | "only consider symbols in these comms"), | |
1184 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1185 | "only consider these symbols"), | |
64c6f0c7 ACM |
1186 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1187 | "Interleave source code with assembly code (default)"), | |
1188 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1189 | "Display raw encoding of assembly instructions (default)"), | |
763122ad AK |
1190 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1191 | "Enable kernel symbol demangling"), | |
0d3942db SB |
1192 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1193 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1194 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1195 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1196 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1197 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1198 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1199 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1200 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1201 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1202 | "width[,width...]", | |
1203 | "don't try to adjust column width, use these fixed values"), | |
9d9cad76 KL |
1204 | OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, |
1205 | "per thread proc mmap processing timeout in ms"), | |
a18b027e AK |
1206 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1207 | "branch any", "sample any taken branches", | |
1208 | parse_branch_stack), | |
1209 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1210 | "branch filter mask", "branch stack filter modes", | |
1211 | parse_branch_stack), | |
053a3989 NK |
1212 | OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
1213 | "Show raw trace event output (do not use print fmt or plugins)"), | |
c92fcfde NK |
1214 | OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
1215 | "Show entries in a hierarchy"), | |
b456bae0 | 1216 | OPT_END() |
1758af10 | 1217 | }; |
be772842 ACM |
1218 | const char * const top_usage[] = { |
1219 | "perf top [<options>]", | |
1220 | NULL | |
1221 | }; | |
a635fc51 ACM |
1222 | int status = hists__init(); |
1223 | ||
1224 | if (status < 0) | |
1225 | return status; | |
b456bae0 | 1226 | |
334fe7a3 | 1227 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1228 | if (top.evlist == NULL) |
361c99a6 ACM |
1229 | return -ENOMEM; |
1230 | ||
eb853e80 JO |
1231 | perf_config(perf_top_config, &top); |
1232 | ||
b456bae0 IM |
1233 | argc = parse_options(argc, argv, options, top_usage, 0); |
1234 | if (argc) | |
1235 | usage_with_options(top_usage, options); | |
1236 | ||
54f8f403 NK |
1237 | if (!top.evlist->nr_entries && |
1238 | perf_evlist__add_default(top.evlist) < 0) { | |
1239 | pr_err("Not enough memory for event selector list\n"); | |
1240 | goto out_delete_evlist; | |
1241 | } | |
1242 | ||
c92fcfde NK |
1243 | if (symbol_conf.report_hierarchy) { |
1244 | /* disable incompatible options */ | |
1245 | symbol_conf.event_group = false; | |
1246 | symbol_conf.cumulate_callchain = false; | |
1247 | ||
1248 | if (field_order) { | |
1249 | pr_err("Error: --hierarchy and --fields options cannot be used together\n"); | |
1250 | parse_options_usage(top_usage, options, "fields", 0); | |
1251 | parse_options_usage(NULL, options, "hierarchy", 0); | |
1252 | goto out_delete_evlist; | |
1253 | } | |
1254 | } | |
1255 | ||
512ae1bd | 1256 | sort__mode = SORT_MODE__TOP; |
6fe8c26d | 1257 | /* display thread wants entries to be collapsed in a different tree */ |
52225036 | 1258 | perf_hpp_list.need_collapse = 1; |
ab81f3fd | 1259 | |
3ee60c3b ACM |
1260 | if (top.use_stdio) |
1261 | use_browser = 0; | |
1262 | else if (top.use_tui) | |
1263 | use_browser = 1; | |
1264 | ||
1265 | setup_browser(false); | |
1266 | ||
40184c46 | 1267 | if (setup_sorting(top.evlist) < 0) { |
6fe8c26d NK |
1268 | if (sort_order) |
1269 | parse_options_usage(top_usage, options, "s", 1); | |
1270 | if (field_order) | |
1271 | parse_options_usage(sort_order ? NULL : top_usage, | |
1272 | options, "fields", 0); | |
d37a92dc NK |
1273 | goto out_delete_evlist; |
1274 | } | |
ab81f3fd | 1275 | |
602ad878 | 1276 | status = target__validate(target); |
16ad2ffb | 1277 | if (status) { |
602ad878 | 1278 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1279 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1280 | } |
1281 | ||
602ad878 | 1282 | status = target__parse_uid(target); |
16ad2ffb NK |
1283 | if (status) { |
1284 | int saved_errno = errno; | |
4bd0f2d2 | 1285 | |
602ad878 | 1286 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1287 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1288 | |
1289 | status = -saved_errno; | |
0d37aa34 | 1290 | goto out_delete_evlist; |
16ad2ffb | 1291 | } |
0d37aa34 | 1292 | |
602ad878 | 1293 | if (target__none(target)) |
2376c67a | 1294 | target->system_wide = true; |
10b47d54 | 1295 | |
f8a5c0b2 ACM |
1296 | if (perf_evlist__create_maps(top.evlist, target) < 0) { |
1297 | ui__error("Couldn't create thread/CPU maps: %s\n", | |
1298 | errno == ENOENT ? "No such process" : strerror_r(errno, errbuf, sizeof(errbuf))); | |
1299 | goto out_delete_evlist; | |
69aad6f1 | 1300 | } |
5a8e5a30 | 1301 | |
d04b35f8 ACM |
1302 | symbol_conf.nr_events = top.evlist->nr_entries; |
1303 | ||
8c3e10eb ACM |
1304 | if (top.delay_secs < 1) |
1305 | top.delay_secs = 1; | |
2f335a02 | 1306 | |
b4006796 | 1307 | if (record_opts__config(opts)) { |
2376c67a | 1308 | status = -EINVAL; |
03ad9747 | 1309 | goto out_delete_evlist; |
69aad6f1 ACM |
1310 | } |
1311 | ||
0c21f736 | 1312 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1313 | |
e3815264 | 1314 | if (!callchain_param.enabled) { |
1432ec34 NK |
1315 | symbol_conf.cumulate_callchain = false; |
1316 | perf_hpp__cancel_cumulate(); | |
1317 | } | |
1318 | ||
792aeafa NK |
1319 | if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
1320 | callchain_param.order = ORDER_CALLER; | |
1321 | ||
ab81f3fd | 1322 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1323 | |
1324 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
0a7e6d1b | 1325 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1326 | return -1; |
1327 | ||
08e71542 | 1328 | sort__setup_elide(stdout); |
ab81f3fd | 1329 | |
1758af10 | 1330 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1331 | if (top.print_entries == 0) { |
1758af10 ACM |
1332 | struct sigaction act = { |
1333 | .sa_sigaction = perf_top__sig_winch, | |
1334 | .sa_flags = SA_SIGINFO, | |
1335 | }; | |
1336 | perf_top__update_print_entries(&top); | |
1337 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1338 | } |
1339 | ||
1758af10 | 1340 | status = __cmd_top(&top); |
806fb630 | 1341 | |
0d37aa34 | 1342 | out_delete_evlist: |
8c3e10eb | 1343 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1344 | |
1345 | return status; | |
b456bae0 | 1346 | } |