]>
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" |
a40b95bc | 25 | #include "util/bpf-event.h" |
41840d21 | 26 | #include "util/config.h" |
8fc0321f | 27 | #include "util/color.h" |
361c99a6 | 28 | #include "util/evlist.h" |
69aad6f1 | 29 | #include "util/evsel.h" |
5ab8c689 | 30 | #include "util/event.h" |
b0a7d1a0 | 31 | #include "util/machine.h" |
1101f69a | 32 | #include "util/map.h" |
b3165f41 ACM |
33 | #include "util/session.h" |
34 | #include "util/symbol.h" | |
439d473b | 35 | #include "util/thread.h" |
fd78260b | 36 | #include "util/thread_map.h" |
8c3e10eb | 37 | #include "util/top.h" |
43cbcd8a | 38 | #include <linux/rbtree.h> |
4b6ab94e | 39 | #include <subcmd/parse-options.h> |
b456bae0 | 40 | #include "util/parse-events.h" |
a12b51c4 | 41 | #include "util/cpumap.h" |
69aad6f1 | 42 | #include "util/xyarray.h" |
ab81f3fd | 43 | #include "util/sort.h" |
b0742e90 | 44 | #include "util/term.h" |
6b118e92 | 45 | #include "util/intlist.h" |
a18b027e | 46 | #include "util/parse-branch-options.h" |
0d3942db | 47 | #include "arch/common.h" |
07800601 | 48 | |
8f28827a | 49 | #include "util/debug.h" |
16c66bc1 | 50 | #include "util/ordered-events.h" |
8f28827a | 51 | |
07800601 | 52 | #include <assert.h> |
31d68e7b | 53 | #include <elf.h> |
07800601 | 54 | #include <fcntl.h> |
0e9b20b8 | 55 | |
07800601 | 56 | #include <stdio.h> |
923c42c1 MG |
57 | #include <termios.h> |
58 | #include <unistd.h> | |
9486aa38 | 59 | #include <inttypes.h> |
0e9b20b8 | 60 | |
07800601 | 61 | #include <errno.h> |
07800601 IM |
62 | #include <time.h> |
63 | #include <sched.h> | |
9607ad3a | 64 | #include <signal.h> |
07800601 IM |
65 | |
66 | #include <sys/syscall.h> | |
67 | #include <sys/ioctl.h> | |
a8fa4960 | 68 | #include <poll.h> |
07800601 IM |
69 | #include <sys/prctl.h> |
70 | #include <sys/wait.h> | |
71 | #include <sys/uio.h> | |
31d68e7b | 72 | #include <sys/utsname.h> |
07800601 IM |
73 | #include <sys/mman.h> |
74 | ||
531d2410 | 75 | #include <linux/stringify.h> |
b9c4b0f4 | 76 | #include <linux/time64.h> |
07800601 IM |
77 | #include <linux/types.h> |
78 | ||
3d689ed6 ACM |
79 | #include "sane_ctype.h" |
80 | ||
11859e82 | 81 | static volatile int done; |
b135e5ee | 82 | static volatile int resize; |
11859e82 | 83 | |
933cbb1c NK |
84 | #define HEADER_LINE_NR 5 |
85 | ||
1758af10 | 86 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 87 | { |
933cbb1c | 88 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
89 | } |
90 | ||
244a1086 | 91 | static void winch_sig(int sig __maybe_unused) |
3b6ed988 | 92 | { |
b135e5ee JO |
93 | resize = 1; |
94 | } | |
1758af10 | 95 | |
b135e5ee JO |
96 | static void perf_top__resize(struct perf_top *top) |
97 | { | |
1758af10 ACM |
98 | get_term_dimensions(&top->winsize); |
99 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
100 | } |
101 | ||
1758af10 | 102 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 | 103 | { |
a7eec4c6 | 104 | struct perf_evsel *evsel = hists_to_evsel(he->hists); |
923c42c1 | 105 | struct symbol *sym; |
ce6f4fab | 106 | struct annotation *notes; |
439d473b | 107 | struct map *map; |
36532461 | 108 | int err = -1; |
923c42c1 | 109 | |
ab81f3fd | 110 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
111 | return -1; |
112 | ||
ab81f3fd ACM |
113 | sym = he->ms.sym; |
114 | map = he->ms.map; | |
b0a9ab62 ACM |
115 | |
116 | /* | |
117 | * We can't annotate with just /proc/kallsyms | |
118 | */ | |
bbb7f846 AH |
119 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
120 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
121 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
122 | "path\n", sym->name); | |
123 | sleep(1); | |
b0a9ab62 | 124 | return -1; |
b269876c ACM |
125 | } |
126 | ||
ce6f4fab | 127 | notes = symbol__annotation(sym); |
ce6f4fab | 128 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 129 | |
14c8dde1 | 130 | if (!symbol__hists(sym, top->evlist->nr_entries)) { |
c97cf422 | 131 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
132 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
133 | sym->name); | |
ce6f4fab | 134 | sleep(1); |
c97cf422 | 135 | return err; |
923c42c1 | 136 | } |
36532461 | 137 | |
380195e2 | 138 | err = symbol__annotate(sym, map, evsel, 0, &top->annotation_opts, NULL); |
36532461 | 139 | if (err == 0) { |
1758af10 | 140 | top->sym_filter_entry = he; |
ee51d851 ACM |
141 | } else { |
142 | char msg[BUFSIZ]; | |
143 | symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); | |
144 | pr_err("Couldn't annotate %s: %s\n", sym->name, msg); | |
36532461 | 145 | } |
c97cf422 | 146 | |
ce6f4fab | 147 | pthread_mutex_unlock(¬es->lock); |
36532461 | 148 | return err; |
923c42c1 MG |
149 | } |
150 | ||
ab81f3fd | 151 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 152 | { |
ab81f3fd | 153 | struct symbol *sym = he->ms.sym; |
36532461 | 154 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
155 | } |
156 | ||
31d68e7b ACM |
157 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
158 | { | |
159 | struct utsname uts; | |
160 | int err = uname(&uts); | |
161 | ||
162 | ui__warning("Out of bounds address found:\n\n" | |
163 | "Addr: %" PRIx64 "\n" | |
164 | "DSO: %s %c\n" | |
165 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
166 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
167 | "Arch: %s\n" | |
168 | "Kernel: %s\n" | |
169 | "Tools: %s\n\n" | |
170 | "Not all samples will be on the annotation output.\n\n" | |
171 | "Please report to linux-kernel@vger.kernel.org\n", | |
172 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
173 | map->start, map->end, sym->start, sym->end, | |
174 | sym->binding == STB_GLOBAL ? 'g' : | |
175 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
176 | err ? "[unknown]" : uts.machine, | |
177 | err ? "[unknown]" : uts.release, perf_version_string); | |
178 | if (use_browser <= 0) | |
179 | sleep(5); | |
48000a1a | 180 | |
31d68e7b ACM |
181 | map->erange_warned = true; |
182 | } | |
183 | ||
1758af10 ACM |
184 | static void perf_top__record_precise_ip(struct perf_top *top, |
185 | struct hist_entry *he, | |
bab89f6a | 186 | struct perf_sample *sample, |
e345f3bd | 187 | struct perf_evsel *evsel, u64 ip) |
923c42c1 | 188 | { |
ce6f4fab | 189 | struct annotation *notes; |
beefb8d0 | 190 | struct symbol *sym = he->ms.sym; |
48c65bda | 191 | int err = 0; |
ce6f4fab | 192 | |
beefb8d0 NK |
193 | if (sym == NULL || (use_browser == 0 && |
194 | (top->sym_filter_entry == NULL || | |
195 | top->sym_filter_entry->ms.sym != sym))) | |
923c42c1 MG |
196 | return; |
197 | ||
ce6f4fab ACM |
198 | notes = symbol__annotation(sym); |
199 | ||
200 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
201 | return; |
202 | ||
e345f3bd | 203 | err = hist_entry__inc_addr_samples(he, sample, evsel, ip); |
c7ad21af | 204 | |
ce6f4fab | 205 | pthread_mutex_unlock(¬es->lock); |
31d68e7b | 206 | |
151ee834 NK |
207 | if (unlikely(err)) { |
208 | /* | |
209 | * This function is now called with he->hists->lock held. | |
210 | * Release it before going to sleep. | |
211 | */ | |
212 | pthread_mutex_unlock(&he->hists->lock); | |
213 | ||
214 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
215 | ui__warn_map_erange(he->ms.map, sym, ip); | |
216 | else if (err == -ENOMEM) { | |
217 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
218 | sym->name); | |
219 | sleep(1); | |
220 | } | |
221 | ||
222 | pthread_mutex_lock(&he->hists->lock); | |
b66d8c0c | 223 | } |
923c42c1 MG |
224 | } |
225 | ||
1758af10 | 226 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 227 | { |
1758af10 | 228 | struct hist_entry *he = top->sym_filter_entry; |
f681d593 | 229 | struct perf_evsel *evsel = hists_to_evsel(he->hists); |
ce6f4fab | 230 | struct annotation *notes; |
923c42c1 | 231 | struct symbol *symbol; |
36532461 | 232 | int more; |
923c42c1 | 233 | |
ab81f3fd | 234 | if (!he) |
923c42c1 MG |
235 | return; |
236 | ||
ab81f3fd | 237 | symbol = he->ms.sym; |
ce6f4fab ACM |
238 | notes = symbol__annotation(symbol); |
239 | ||
240 | pthread_mutex_lock(¬es->lock); | |
241 | ||
f681d593 JO |
242 | symbol__calc_percent(symbol, evsel); |
243 | ||
ce6f4fab ACM |
244 | if (notes->src == NULL) |
245 | goto out_unlock; | |
923c42c1 | 246 | |
7289f83c | 247 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
982d410b | 248 | printf(" Events Pcnt (>=%d%%)\n", top->annotation_opts.min_pcnt); |
923c42c1 | 249 | |
982d410b | 250 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, &top->annotation_opts); |
5d484f99 ACM |
251 | |
252 | if (top->evlist->enabled) { | |
253 | if (top->zero) | |
254 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
255 | else | |
256 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
257 | } | |
36532461 | 258 | if (more != 0) |
923c42c1 | 259 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
260 | out_unlock: |
261 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 262 | } |
07800601 | 263 | |
1758af10 | 264 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 265 | { |
8c3e10eb ACM |
266 | char bf[160]; |
267 | int printed = 0; | |
1758af10 | 268 | const int win_width = top->winsize.ws_col - 1; |
452ce03b JO |
269 | struct perf_evsel *evsel = top->sym_evsel; |
270 | struct hists *hists = evsel__hists(evsel); | |
d94b9430 | 271 | |
0f5486b5 | 272 | puts(CONSOLE_CLEAR); |
07800601 | 273 | |
1758af10 | 274 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 275 | printf("%s\n", bf); |
07800601 | 276 | |
1a105f74 | 277 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 278 | |
a1ff5b05 KL |
279 | if (!top->record_opts.overwrite && |
280 | (hists->stats.nr_lost_warned != | |
281 | hists->stats.nr_events[PERF_RECORD_LOST])) { | |
4ea062ed ACM |
282 | hists->stats.nr_lost_warned = |
283 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
284 | color_fprintf(stdout, PERF_COLOR_RED, |
285 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 286 | hists->stats.nr_lost_warned); |
ab81f3fd | 287 | ++printed; |
93fc64f1 ACM |
288 | } |
289 | ||
1758af10 ACM |
290 | if (top->sym_filter_entry) { |
291 | perf_top__show_details(top); | |
923c42c1 MG |
292 | return; |
293 | } | |
294 | ||
5d484f99 ACM |
295 | if (top->evlist->enabled) { |
296 | if (top->zero) { | |
297 | hists__delete_entries(hists); | |
298 | } else { | |
299 | hists__decay_entries(hists, top->hide_user_symbols, | |
300 | top->hide_kernel_symbols); | |
301 | } | |
701937bd NK |
302 | } |
303 | ||
4ea062ed | 304 | hists__collapse_resort(hists, NULL); |
452ce03b | 305 | perf_evsel__output_resort(evsel, NULL); |
701937bd | 306 | |
4ea062ed | 307 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 308 | putchar('\n'); |
4ea062ed | 309 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
e9de7e2f | 310 | top->min_percent, stdout, !symbol_conf.use_callchain); |
07800601 IM |
311 | } |
312 | ||
923c42c1 MG |
313 | static void prompt_integer(int *target, const char *msg) |
314 | { | |
315 | char *buf = malloc(0), *p; | |
316 | size_t dummy = 0; | |
317 | int tmp; | |
318 | ||
319 | fprintf(stdout, "\n%s: ", msg); | |
320 | if (getline(&buf, &dummy, stdin) < 0) | |
321 | return; | |
322 | ||
323 | p = strchr(buf, '\n'); | |
324 | if (p) | |
325 | *p = 0; | |
326 | ||
327 | p = buf; | |
328 | while(*p) { | |
329 | if (!isdigit(*p)) | |
330 | goto out_free; | |
331 | p++; | |
332 | } | |
333 | tmp = strtoul(buf, NULL, 10); | |
334 | *target = tmp; | |
335 | out_free: | |
336 | free(buf); | |
337 | } | |
338 | ||
339 | static void prompt_percent(int *target, const char *msg) | |
340 | { | |
341 | int tmp = 0; | |
342 | ||
343 | prompt_integer(&tmp, msg); | |
344 | if (tmp >= 0 && tmp <= 100) | |
345 | *target = tmp; | |
346 | } | |
347 | ||
1758af10 | 348 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
349 | { |
350 | char *buf = malloc(0), *p; | |
1758af10 | 351 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 352 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 353 | struct rb_node *next; |
923c42c1 MG |
354 | size_t dummy = 0; |
355 | ||
356 | /* zero counters of active symbol */ | |
357 | if (syme) { | |
923c42c1 | 358 | __zero_source_counters(syme); |
1758af10 | 359 | top->sym_filter_entry = NULL; |
923c42c1 MG |
360 | } |
361 | ||
362 | fprintf(stdout, "\n%s: ", msg); | |
363 | if (getline(&buf, &dummy, stdin) < 0) | |
364 | goto out_free; | |
365 | ||
366 | p = strchr(buf, '\n'); | |
367 | if (p) | |
368 | *p = 0; | |
369 | ||
2eb3d689 | 370 | next = rb_first_cached(&hists->entries); |
ab81f3fd ACM |
371 | while (next) { |
372 | n = rb_entry(next, struct hist_entry, rb_node); | |
373 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
374 | found = n; | |
923c42c1 MG |
375 | break; |
376 | } | |
ab81f3fd | 377 | next = rb_next(&n->rb_node); |
923c42c1 MG |
378 | } |
379 | ||
380 | if (!found) { | |
66aeb6d5 | 381 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 382 | sleep(1); |
923c42c1 | 383 | } else |
1758af10 | 384 | perf_top__parse_source(top, found); |
923c42c1 MG |
385 | |
386 | out_free: | |
387 | free(buf); | |
388 | } | |
389 | ||
1758af10 | 390 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 391 | { |
091bd2e9 MG |
392 | char *name = NULL; |
393 | ||
1758af10 ACM |
394 | if (top->sym_filter_entry) { |
395 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
396 | name = sym->name; |
397 | } | |
398 | ||
399 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
400 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
401 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 402 | |
1758af10 | 403 | if (top->evlist->nr_entries > 1) |
7289f83c | 404 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 405 | |
1758af10 | 406 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 407 | |
982d410b | 408 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->annotation_opts.min_pcnt); |
6cff0e8d KS |
409 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
410 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 411 | |
8ffcda17 | 412 | fprintf(stdout, |
8fce3743 | 413 | "\t[K] hide kernel symbols. \t(%s)\n", |
1758af10 | 414 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
415 | fprintf(stdout, |
416 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
417 | top->hide_user_symbols ? "yes" : "no"); |
418 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
419 | fprintf(stdout, "\t[qQ] quit.\n"); |
420 | } | |
421 | ||
1758af10 | 422 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
423 | { |
424 | switch (c) { | |
425 | case 'd': | |
426 | case 'e': | |
427 | case 'f': | |
428 | case 'z': | |
429 | case 'q': | |
430 | case 'Q': | |
8ffcda17 ACM |
431 | case 'K': |
432 | case 'U': | |
6cff0e8d KS |
433 | case 'F': |
434 | case 's': | |
435 | case 'S': | |
091bd2e9 MG |
436 | return 1; |
437 | case 'E': | |
1758af10 | 438 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
439 | default: |
440 | break; | |
091bd2e9 MG |
441 | } |
442 | ||
443 | return 0; | |
923c42c1 MG |
444 | } |
445 | ||
11859e82 | 446 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 447 | { |
11859e82 ACM |
448 | bool ret = true; |
449 | ||
1758af10 | 450 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 451 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 452 | struct termios save; |
091bd2e9 | 453 | |
1758af10 | 454 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
455 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
456 | fflush(stdout); | |
457 | ||
3969cc09 | 458 | set_term_quiet_input(&save); |
091bd2e9 MG |
459 | |
460 | poll(&stdin_poll, 1, -1); | |
461 | c = getc(stdin); | |
462 | ||
463 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 464 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 465 | return ret; |
091bd2e9 MG |
466 | } |
467 | ||
923c42c1 MG |
468 | switch (c) { |
469 | case 'd': | |
1758af10 ACM |
470 | prompt_integer(&top->delay_secs, "Enter display delay"); |
471 | if (top->delay_secs < 1) | |
472 | top->delay_secs = 1; | |
923c42c1 MG |
473 | break; |
474 | case 'e': | |
1758af10 ACM |
475 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
476 | if (top->print_entries == 0) { | |
b135e5ee | 477 | perf_top__resize(top); |
244a1086 | 478 | signal(SIGWINCH, winch_sig); |
509605db | 479 | } else { |
3b6ed988 | 480 | signal(SIGWINCH, SIG_DFL); |
509605db | 481 | } |
923c42c1 MG |
482 | break; |
483 | case 'E': | |
1758af10 | 484 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
485 | /* Select 0 as the default event: */ |
486 | int counter = 0; | |
487 | ||
923c42c1 | 488 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 489 | |
e5cadb93 | 490 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
7289f83c | 491 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 492 | |
ec52d976 | 493 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 494 | |
1758af10 | 495 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 496 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 497 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 498 | sleep(1); |
69aad6f1 | 499 | break; |
923c42c1 | 500 | } |
e5cadb93 | 501 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
1758af10 | 502 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 503 | break; |
ec52d976 | 504 | } else |
0c21f736 | 505 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
506 | break; |
507 | case 'f': | |
1758af10 | 508 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
509 | break; |
510 | case 'F': | |
982d410b | 511 | prompt_percent(&top->annotation_opts.min_pcnt, |
1758af10 | 512 | "Enter details display event filter (percent)"); |
923c42c1 | 513 | break; |
8ffcda17 | 514 | case 'K': |
1758af10 | 515 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 516 | break; |
923c42c1 MG |
517 | case 'q': |
518 | case 'Q': | |
519 | printf("exiting.\n"); | |
1758af10 ACM |
520 | if (top->dump_symtab) |
521 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
522 | ret = false; |
523 | break; | |
923c42c1 | 524 | case 's': |
1758af10 | 525 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
526 | break; |
527 | case 'S': | |
1758af10 | 528 | if (!top->sym_filter_entry) |
923c42c1 MG |
529 | break; |
530 | else { | |
1758af10 | 531 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 532 | |
1758af10 | 533 | top->sym_filter_entry = NULL; |
923c42c1 | 534 | __zero_source_counters(syme); |
923c42c1 MG |
535 | } |
536 | break; | |
8ffcda17 | 537 | case 'U': |
1758af10 | 538 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 539 | break; |
923c42c1 | 540 | case 'z': |
1758af10 | 541 | top->zero = !top->zero; |
923c42c1 | 542 | break; |
83a0944f IM |
543 | default: |
544 | break; | |
923c42c1 | 545 | } |
11859e82 ACM |
546 | |
547 | return ret; | |
923c42c1 MG |
548 | } |
549 | ||
ab81f3fd ACM |
550 | static void perf_top__sort_new_samples(void *arg) |
551 | { | |
552 | struct perf_top *t = arg; | |
452ce03b | 553 | struct perf_evsel *evsel = t->sym_evsel; |
4ea062ed ACM |
554 | struct hists *hists; |
555 | ||
ab81f3fd ACM |
556 | if (t->evlist->selected != NULL) |
557 | t->sym_evsel = t->evlist->selected; | |
558 | ||
452ce03b | 559 | hists = evsel__hists(evsel); |
4ea062ed | 560 | |
5d484f99 ACM |
561 | if (t->evlist->enabled) { |
562 | if (t->zero) { | |
563 | hists__delete_entries(hists); | |
564 | } else { | |
565 | hists__decay_entries(hists, t->hide_user_symbols, | |
566 | t->hide_kernel_symbols); | |
567 | } | |
701937bd NK |
568 | } |
569 | ||
4ea062ed | 570 | hists__collapse_resort(hists, NULL); |
452ce03b | 571 | perf_evsel__output_resort(evsel, NULL); |
254de74c | 572 | |
d8590430 | 573 | if (t->lost || t->drop) |
254de74c | 574 | pr_warning("Too slow to read ring buffer (change period (-c/-F) or limit CPUs (-C)\n"); |
ab81f3fd ACM |
575 | } |
576 | ||
c94cef4b JO |
577 | static void stop_top(void) |
578 | { | |
579 | session_done = 1; | |
580 | done = 1; | |
581 | } | |
582 | ||
1758af10 | 583 | static void *display_thread_tui(void *arg) |
c0443df1 | 584 | { |
0d37aa34 | 585 | struct perf_evsel *pos; |
1758af10 | 586 | struct perf_top *top = arg; |
ab81f3fd | 587 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
588 | struct hist_browser_timer hbt = { |
589 | .timer = perf_top__sort_new_samples, | |
590 | .arg = top, | |
591 | .refresh = top->delay_secs, | |
592 | }; | |
ab81f3fd | 593 | |
868a8329 KJ |
594 | /* In order to read symbols from other namespaces perf to needs to call |
595 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
596 | * unshare(2) the fs so that we may continue to setns into namespaces | |
597 | * that we're observing. | |
598 | */ | |
599 | unshare(CLONE_FS); | |
600 | ||
1758af10 | 601 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
602 | |
603 | /* | |
604 | * Initialize the uid_filter_str, in the future the TUI will allow | |
adba1634 | 605 | * Zooming in/out UIDs. For now just use whatever the user passed |
0d37aa34 ACM |
606 | * via --uid. |
607 | */ | |
e5cadb93 | 608 | evlist__for_each_entry(top->evlist, pos) { |
4ea062ed ACM |
609 | struct hists *hists = evsel__hists(pos); |
610 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
611 | } | |
0d37aa34 | 612 | |
13d1e536 NK |
613 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
614 | top->min_percent, | |
a1ff5b05 | 615 | &top->session->header.env, |
cd0cccba ACM |
616 | !top->record_opts.overwrite, |
617 | &top->annotation_opts); | |
ab81f3fd | 618 | |
c94cef4b | 619 | stop_top(); |
c0443df1 ACM |
620 | return NULL; |
621 | } | |
622 | ||
4a1a9971 JO |
623 | static void display_sig(int sig __maybe_unused) |
624 | { | |
c94cef4b | 625 | stop_top(); |
4a1a9971 JO |
626 | } |
627 | ||
628 | static void display_setup_sig(void) | |
629 | { | |
09f4d78a ACM |
630 | signal(SIGSEGV, sighandler_dump_stack); |
631 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
632 | signal(SIGINT, display_sig); |
633 | signal(SIGQUIT, display_sig); | |
634 | signal(SIGTERM, display_sig); | |
635 | } | |
636 | ||
1758af10 | 637 | static void *display_thread(void *arg) |
07800601 | 638 | { |
0f5486b5 | 639 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 640 | struct termios save; |
1758af10 | 641 | struct perf_top *top = arg; |
923c42c1 MG |
642 | int delay_msecs, c; |
643 | ||
868a8329 KJ |
644 | /* In order to read symbols from other namespaces perf to needs to call |
645 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
646 | * unshare(2) the fs so that we may continue to setns into namespaces | |
647 | * that we're observing. | |
648 | */ | |
649 | unshare(CLONE_FS); | |
650 | ||
4a1a9971 | 651 | display_setup_sig(); |
3af6e338 | 652 | pthread__unblock_sigwinch(); |
923c42c1 | 653 | repeat: |
b9c4b0f4 | 654 | delay_msecs = top->delay_secs * MSEC_PER_SEC; |
9398c484 | 655 | set_term_quiet_input(&save); |
923c42c1 MG |
656 | /* trash return*/ |
657 | getc(stdin); | |
07800601 | 658 | |
11859e82 | 659 | while (!done) { |
1758af10 | 660 | perf_top__print_sym_table(top); |
3af6e338 ACM |
661 | /* |
662 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
663 | * refresh screen in both cases. | |
664 | */ | |
665 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
666 | case 0: | |
667 | continue; | |
668 | case -1: | |
669 | if (errno == EINTR) | |
670 | continue; | |
7b0214b7 | 671 | __fallthrough; |
3af6e338 | 672 | default: |
11859e82 ACM |
673 | c = getc(stdin); |
674 | tcsetattr(0, TCSAFLUSH, &save); | |
675 | ||
676 | if (perf_top__handle_keypress(top, c)) | |
677 | goto repeat; | |
c94cef4b | 678 | stop_top(); |
3af6e338 ACM |
679 | } |
680 | } | |
07800601 | 681 | |
4a1a9971 | 682 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
683 | return NULL; |
684 | } | |
685 | ||
7c50391f NK |
686 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
687 | struct addr_location *al, bool single, | |
688 | void *arg) | |
689 | { | |
690 | struct perf_top *top = arg; | |
691 | struct hist_entry *he = iter->he; | |
692 | struct perf_evsel *evsel = iter->evsel; | |
693 | ||
2e0453af | 694 | if (perf_hpp_list.sym && single) |
e345f3bd | 695 | perf_top__record_precise_ip(top, he, iter->sample, evsel, al->addr); |
7c50391f | 696 | |
a18b027e AK |
697 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
698 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
699 | return 0; |
700 | } | |
701 | ||
1758af10 ACM |
702 | static void perf_event__process_sample(struct perf_tool *tool, |
703 | const union perf_event *event, | |
7b27509f | 704 | struct perf_evsel *evsel, |
8115d60c | 705 | struct perf_sample *sample, |
743eb868 | 706 | struct machine *machine) |
07800601 | 707 | { |
1758af10 | 708 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 709 | struct addr_location al; |
19d4ac3c | 710 | int err; |
5b2bb75a | 711 | |
23346f21 | 712 | if (!machine && perf_guest) { |
6b118e92 DA |
713 | static struct intlist *seen; |
714 | ||
715 | if (!seen) | |
ffe0fb76 | 716 | seen = intlist__new(NULL); |
6b118e92 | 717 | |
ef89325f | 718 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 719 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
720 | sample->pid); |
721 | intlist__add(seen, sample->pid); | |
6b118e92 | 722 | } |
a1645ce1 ZY |
723 | return; |
724 | } | |
725 | ||
0c095715 | 726 | if (!machine) { |
11859e82 | 727 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 728 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
729 | return; |
730 | } | |
731 | ||
8115d60c | 732 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 733 | top->exact_samples++; |
1676b8a0 | 734 | |
bb3eb566 | 735 | if (machine__resolve(machine, &al, sample) < 0) |
1ed091c4 | 736 | return; |
07800601 | 737 | |
e77a0742 | 738 | if (!machine->kptr_restrict_warned && |
5f6f5580 ACM |
739 | symbol_conf.kptr_restrict && |
740 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
b89a5124 ACM |
741 | if (!perf_evlist__exclude_kernel(top->session->evlist)) { |
742 | ui__warning( | |
5f6f5580 ACM |
743 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" |
744 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
745 | "Kernel%s samples will not be resolved.\n", | |
e94b861a | 746 | al.map && map__has_symbols(al.map) ? |
5f6f5580 | 747 | " modules" : ""); |
b89a5124 ACM |
748 | if (use_browser <= 0) |
749 | sleep(5); | |
750 | } | |
e77a0742 | 751 | machine->kptr_restrict_warned = true; |
5f6f5580 ACM |
752 | } |
753 | ||
68766bfa | 754 | if (al.sym == NULL && al.map != 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 | */ | |
e77a0742 | 767 | if (!machine->kptr_restrict_warned && !top->vmlinux_warned && |
e94b861a | 768 | __map__is_kernel(al.map) && map__has_symbols(al.map)) { |
e4a338d0 | 769 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
770 | char serr[256]; |
771 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
772 | ui__warning("The %s file can't be used: %s\n%s", | |
773 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
774 | } else { |
775 | ui__warning("A vmlinux file was not found.\n%s", | |
776 | msg); | |
777 | } | |
778 | ||
779 | if (use_browser <= 0) | |
780 | sleep(5); | |
1758af10 | 781 | top->vmlinux_warned = true; |
72b8fa17 | 782 | } |
6cff0e8d KS |
783 | } |
784 | ||
b55cc4ed | 785 | if (al.sym == NULL || !al.sym->idle) { |
4ea062ed | 786 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 787 | struct hist_entry_iter iter = { |
063bd936 NK |
788 | .evsel = evsel, |
789 | .sample = sample, | |
790 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 791 | }; |
70db7533 | 792 | |
7c50391f NK |
793 | if (symbol_conf.cumulate_callchain) |
794 | iter.ops = &hist_iter_cumulative; | |
795 | else | |
796 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 797 | |
4ea062ed | 798 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 799 | |
063bd936 | 800 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
801 | if (err < 0) |
802 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 803 | |
4ea062ed | 804 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 805 | } |
ab81f3fd | 806 | |
b91fc39f | 807 | addr_location__put(&al); |
07800601 IM |
808 | } |
809 | ||
d24e3c98 JO |
810 | static void |
811 | perf_top__process_lost(struct perf_top *top, union perf_event *event, | |
812 | struct perf_evsel *evsel) | |
813 | { | |
814 | struct hists *hists = evsel__hists(evsel); | |
815 | ||
816 | top->lost += event->lost.lost; | |
817 | top->lost_total += event->lost.lost; | |
818 | hists->stats.total_lost += event->lost.lost; | |
819 | } | |
820 | ||
821 | static void | |
822 | perf_top__process_lost_samples(struct perf_top *top, | |
823 | union perf_event *event, | |
824 | struct perf_evsel *evsel) | |
825 | { | |
826 | struct hists *hists = evsel__hists(evsel); | |
827 | ||
828 | top->lost += event->lost_samples.lost; | |
829 | top->lost_total += event->lost_samples.lost; | |
830 | hists->stats.total_lost_samples += event->lost_samples.lost; | |
831 | } | |
832 | ||
d63b9f6f JO |
833 | static u64 last_timestamp; |
834 | ||
1758af10 | 835 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 836 | { |
ebebbf08 KL |
837 | struct record_opts *opts = &top->record_opts; |
838 | struct perf_evlist *evlist = top->evlist; | |
ebebbf08 | 839 | struct perf_mmap *md; |
8115d60c | 840 | union perf_event *event; |
07800601 | 841 | |
ebebbf08 | 842 | md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx]; |
b9bae2c8 | 843 | if (perf_mmap__read_init(md) < 0) |
ebebbf08 KL |
844 | return; |
845 | ||
0019dc87 | 846 | while ((event = perf_mmap__read_event(md)) != NULL) { |
16c66bc1 | 847 | int ret; |
7b27509f | 848 | |
d63b9f6f | 849 | ret = perf_evlist__parse_sample_timestamp(evlist, event, &last_timestamp); |
16c66bc1 | 850 | if (ret && ret != -1) |
743eb868 | 851 | break; |
743eb868 | 852 | |
d63b9f6f | 853 | ret = ordered_events__queue(top->qe.in, event, last_timestamp, 0); |
16c66bc1 JO |
854 | if (ret) |
855 | break; | |
94ad6e7e JO |
856 | |
857 | perf_mmap__consume(md); | |
858 | ||
859 | if (top->qe.rotate) { | |
860 | pthread_mutex_lock(&top->qe.mutex); | |
861 | top->qe.rotate = false; | |
862 | pthread_cond_signal(&top->qe.cond); | |
863 | pthread_mutex_unlock(&top->qe.mutex); | |
864 | } | |
07800601 | 865 | } |
ebebbf08 KL |
866 | |
867 | perf_mmap__read_done(md); | |
07800601 IM |
868 | } |
869 | ||
1758af10 | 870 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 871 | { |
ebebbf08 KL |
872 | bool overwrite = top->record_opts.overwrite; |
873 | struct perf_evlist *evlist = top->evlist; | |
70db7533 ACM |
874 | int i; |
875 | ||
ebebbf08 KL |
876 | if (overwrite) |
877 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING); | |
878 | ||
1758af10 ACM |
879 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
880 | perf_top__mmap_read_idx(top, i); | |
ebebbf08 KL |
881 | |
882 | if (overwrite) { | |
883 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY); | |
884 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING); | |
885 | } | |
2f01190a FW |
886 | } |
887 | ||
63878a53 KL |
888 | /* |
889 | * Check per-event overwrite term. | |
890 | * perf top should support consistent term for all events. | |
891 | * - All events don't have per-event term | |
892 | * E.g. "cpu/cpu-cycles/,cpu/instructions/" | |
893 | * Nothing change, return 0. | |
894 | * - All events have same per-event term | |
895 | * E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/ | |
896 | * Using the per-event setting to replace the opts->overwrite if | |
897 | * they are different, then return 0. | |
898 | * - Events have different per-event term | |
899 | * E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/" | |
900 | * Return -1 | |
901 | * - Some of the event set per-event term, but some not. | |
902 | * E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/" | |
903 | * Return -1 | |
904 | */ | |
905 | static int perf_top__overwrite_check(struct perf_top *top) | |
906 | { | |
907 | struct record_opts *opts = &top->record_opts; | |
908 | struct perf_evlist *evlist = top->evlist; | |
909 | struct perf_evsel_config_term *term; | |
910 | struct list_head *config_terms; | |
911 | struct perf_evsel *evsel; | |
912 | int set, overwrite = -1; | |
913 | ||
914 | evlist__for_each_entry(evlist, evsel) { | |
915 | set = -1; | |
916 | config_terms = &evsel->config_terms; | |
917 | list_for_each_entry(term, config_terms, list) { | |
918 | if (term->type == PERF_EVSEL__CONFIG_TERM_OVERWRITE) | |
919 | set = term->val.overwrite ? 1 : 0; | |
920 | } | |
921 | ||
922 | /* no term for current and previous event (likely) */ | |
923 | if ((overwrite < 0) && (set < 0)) | |
924 | continue; | |
925 | ||
926 | /* has term for both current and previous event, compare */ | |
927 | if ((overwrite >= 0) && (set >= 0) && (overwrite != set)) | |
928 | return -1; | |
929 | ||
930 | /* no term for current event but has term for previous one */ | |
931 | if ((overwrite >= 0) && (set < 0)) | |
932 | return -1; | |
933 | ||
934 | /* has term for current event */ | |
935 | if ((overwrite < 0) && (set >= 0)) { | |
936 | /* if it's first event, set overwrite */ | |
937 | if (evsel == perf_evlist__first(evlist)) | |
938 | overwrite = set; | |
939 | else | |
940 | return -1; | |
941 | } | |
942 | } | |
943 | ||
944 | if ((overwrite >= 0) && (opts->overwrite != overwrite)) | |
945 | opts->overwrite = overwrite; | |
946 | ||
947 | return 0; | |
948 | } | |
949 | ||
204721d7 KL |
950 | static int perf_top_overwrite_fallback(struct perf_top *top, |
951 | struct perf_evsel *evsel) | |
952 | { | |
953 | struct record_opts *opts = &top->record_opts; | |
954 | struct perf_evlist *evlist = top->evlist; | |
955 | struct perf_evsel *counter; | |
956 | ||
957 | if (!opts->overwrite) | |
958 | return 0; | |
959 | ||
960 | /* only fall back when first event fails */ | |
961 | if (evsel != perf_evlist__first(evlist)) | |
962 | return 0; | |
963 | ||
964 | evlist__for_each_entry(evlist, counter) | |
965 | counter->attr.write_backward = false; | |
966 | opts->overwrite = false; | |
853745f5 | 967 | pr_debug2("fall back to non-overwrite mode\n"); |
204721d7 KL |
968 | return 1; |
969 | } | |
970 | ||
11859e82 | 971 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 972 | { |
d6195a6a | 973 | char msg[BUFSIZ]; |
6a4bb04c | 974 | struct perf_evsel *counter; |
1758af10 | 975 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 976 | struct record_opts *opts = &top->record_opts; |
727ab04e | 977 | |
63878a53 KL |
978 | if (perf_top__overwrite_check(top)) { |
979 | ui__error("perf top only support consistent per-event " | |
980 | "overwrite setting for all events\n"); | |
981 | goto out_err; | |
982 | } | |
983 | ||
e68ae9cf | 984 | perf_evlist__config(evlist, opts, &callchain_param); |
7e4ff9e3 | 985 | |
e5cadb93 | 986 | evlist__for_each_entry(evlist, counter) { |
72cb7013 | 987 | try_again: |
1758af10 | 988 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 989 | top->evlist->threads) < 0) { |
204721d7 KL |
990 | |
991 | /* | |
992 | * Specially handle overwrite fall back. | |
993 | * Because perf top is the only tool which has | |
994 | * overwrite mode by default, support | |
995 | * both overwrite and non-overwrite mode, and | |
996 | * require consistent mode for all events. | |
997 | * | |
998 | * May move it to generic code with more tools | |
999 | * have similar attribute. | |
1000 | */ | |
1001 | if (perf_missing_features.write_backward && | |
1002 | perf_top_overwrite_fallback(top, counter)) | |
1003 | goto try_again; | |
1004 | ||
56e52e85 | 1005 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
bb963e16 | 1006 | if (verbose > 0) |
c0a54341 | 1007 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
1008 | goto try_again; |
1009 | } | |
c286c419 | 1010 | |
56e52e85 ACM |
1011 | perf_evsel__open_strerror(counter, &opts->target, |
1012 | errno, msg, sizeof(msg)); | |
1013 | ui__error("%s\n", msg); | |
c286c419 | 1014 | goto out_err; |
d6d901c2 | 1015 | } |
716c69fe | 1016 | } |
70db7533 | 1017 | |
f74b9d3a | 1018 | if (perf_evlist__mmap(evlist, opts->mmap_pages) < 0) { |
3780f488 | 1019 | ui__error("Failed to mmap with %d (%s)\n", |
c8b5f2c9 | 1020 | errno, str_error_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
1021 | goto out_err; |
1022 | } | |
1023 | ||
11859e82 | 1024 | return 0; |
c286c419 ACM |
1025 | |
1026 | out_err: | |
11859e82 | 1027 | return -1; |
716c69fe IM |
1028 | } |
1029 | ||
e3815264 | 1030 | static int callchain_param__setup_sample_type(struct callchain_param *callchain) |
19d4ac3c | 1031 | { |
f2e14cd2 | 1032 | if (callchain->mode != CHAIN_NONE) { |
e3815264 | 1033 | if (callchain_register_param(callchain) < 0) { |
3780f488 | 1034 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
1035 | return -EINVAL; |
1036 | } | |
1037 | } | |
1038 | ||
1039 | return 0; | |
1040 | } | |
1041 | ||
16c66bc1 JO |
1042 | static struct ordered_events *rotate_queues(struct perf_top *top) |
1043 | { | |
1044 | struct ordered_events *in = top->qe.in; | |
1045 | ||
1046 | if (top->qe.in == &top->qe.data[1]) | |
1047 | top->qe.in = &top->qe.data[0]; | |
1048 | else | |
1049 | top->qe.in = &top->qe.data[1]; | |
1050 | ||
1051 | return in; | |
1052 | } | |
1053 | ||
1054 | static void *process_thread(void *arg) | |
1055 | { | |
1056 | struct perf_top *top = arg; | |
1057 | ||
1058 | while (!done) { | |
1059 | struct ordered_events *out, *in = top->qe.in; | |
1060 | ||
1061 | if (!in->nr_events) { | |
1062 | usleep(100); | |
1063 | continue; | |
1064 | } | |
1065 | ||
16c66bc1 | 1066 | out = rotate_queues(top); |
94ad6e7e JO |
1067 | |
1068 | pthread_mutex_lock(&top->qe.mutex); | |
1069 | top->qe.rotate = true; | |
1070 | pthread_cond_wait(&top->qe.cond, &top->qe.mutex); | |
1071 | pthread_mutex_unlock(&top->qe.mutex); | |
16c66bc1 JO |
1072 | |
1073 | if (ordered_events__flush(out, OE_FLUSH__TOP)) | |
1074 | pr_err("failed to process events\n"); | |
1075 | } | |
1076 | ||
1077 | return NULL; | |
1078 | } | |
1079 | ||
d63b9f6f JO |
1080 | /* |
1081 | * Allow only 'top->delay_secs' seconds behind samples. | |
1082 | */ | |
1083 | static int should_drop(struct ordered_event *qevent, struct perf_top *top) | |
1084 | { | |
1085 | union perf_event *event = qevent->event; | |
1086 | u64 delay_timestamp; | |
1087 | ||
1088 | if (event->header.type != PERF_RECORD_SAMPLE) | |
1089 | return false; | |
1090 | ||
1091 | delay_timestamp = qevent->timestamp + top->delay_secs * NSEC_PER_SEC; | |
1092 | return delay_timestamp < last_timestamp; | |
1093 | } | |
1094 | ||
16c66bc1 JO |
1095 | static int deliver_event(struct ordered_events *qe, |
1096 | struct ordered_event *qevent) | |
1097 | { | |
1098 | struct perf_top *top = qe->data; | |
1099 | struct perf_evlist *evlist = top->evlist; | |
1100 | struct perf_session *session = top->session; | |
1101 | union perf_event *event = qevent->event; | |
1102 | struct perf_sample sample; | |
1103 | struct perf_evsel *evsel; | |
1104 | struct machine *machine; | |
1105 | int ret = -1; | |
1106 | ||
97f7e0b3 JO |
1107 | if (should_drop(qevent, top)) { |
1108 | top->drop++; | |
1109 | top->drop_total++; | |
d63b9f6f | 1110 | return 0; |
97f7e0b3 | 1111 | } |
d63b9f6f | 1112 | |
16c66bc1 JO |
1113 | ret = perf_evlist__parse_sample(evlist, event, &sample); |
1114 | if (ret) { | |
1115 | pr_err("Can't parse sample, err = %d\n", ret); | |
1116 | goto next_event; | |
1117 | } | |
1118 | ||
1119 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); | |
1120 | assert(evsel != NULL); | |
1121 | ||
1122 | if (event->header.type == PERF_RECORD_SAMPLE) | |
1123 | ++top->samples; | |
1124 | ||
1125 | switch (sample.cpumode) { | |
1126 | case PERF_RECORD_MISC_USER: | |
1127 | ++top->us_samples; | |
1128 | if (top->hide_user_symbols) | |
1129 | goto next_event; | |
1130 | machine = &session->machines.host; | |
1131 | break; | |
1132 | case PERF_RECORD_MISC_KERNEL: | |
1133 | ++top->kernel_samples; | |
1134 | if (top->hide_kernel_symbols) | |
1135 | goto next_event; | |
1136 | machine = &session->machines.host; | |
1137 | break; | |
1138 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1139 | ++top->guest_kernel_samples; | |
1140 | machine = perf_session__find_machine(session, | |
1141 | sample.pid); | |
1142 | break; | |
1143 | case PERF_RECORD_MISC_GUEST_USER: | |
1144 | ++top->guest_us_samples; | |
1145 | /* | |
1146 | * TODO: we don't process guest user from host side | |
1147 | * except simple counting. | |
1148 | */ | |
1149 | goto next_event; | |
1150 | default: | |
1151 | if (event->header.type == PERF_RECORD_SAMPLE) | |
1152 | goto next_event; | |
1153 | machine = &session->machines.host; | |
1154 | break; | |
1155 | } | |
1156 | ||
1157 | if (event->header.type == PERF_RECORD_SAMPLE) { | |
1158 | perf_event__process_sample(&top->tool, event, evsel, | |
1159 | &sample, machine); | |
1160 | } else if (event->header.type == PERF_RECORD_LOST) { | |
1161 | perf_top__process_lost(top, event, evsel); | |
1162 | } else if (event->header.type == PERF_RECORD_LOST_SAMPLES) { | |
1163 | perf_top__process_lost_samples(top, event, evsel); | |
1164 | } else if (event->header.type < PERF_RECORD_MAX) { | |
1165 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); | |
1166 | machine__process_event(machine, event, &sample); | |
1167 | } else | |
1168 | ++session->evlist->stats.nr_unknown_events; | |
1169 | ||
1170 | ret = 0; | |
1171 | next_event: | |
1172 | return ret; | |
1173 | } | |
1174 | ||
1175 | static void init_process_thread(struct perf_top *top) | |
1176 | { | |
1177 | ordered_events__init(&top->qe.data[0], deliver_event, top); | |
1178 | ordered_events__init(&top->qe.data[1], deliver_event, top); | |
1179 | ordered_events__set_copy_on_queue(&top->qe.data[0], true); | |
1180 | ordered_events__set_copy_on_queue(&top->qe.data[1], true); | |
1181 | top->qe.in = &top->qe.data[0]; | |
94ad6e7e JO |
1182 | pthread_mutex_init(&top->qe.mutex, NULL); |
1183 | pthread_cond_init(&top->qe.cond, NULL); | |
16c66bc1 JO |
1184 | } |
1185 | ||
1758af10 | 1186 | static int __cmd_top(struct perf_top *top) |
716c69fe | 1187 | { |
b4006796 | 1188 | struct record_opts *opts = &top->record_opts; |
16c66bc1 | 1189 | pthread_t thread, thread_process; |
19d4ac3c | 1190 | int ret; |
f5fc1412 | 1191 | |
6a4d98d7 | 1192 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 1193 | if (top->session == NULL) |
52e02834 | 1194 | return -1; |
07800601 | 1195 | |
f178fd2d ACM |
1196 | if (!top->annotation_opts.objdump_path) { |
1197 | ret = perf_env__lookup_objdump(&top->session->header.env, | |
1198 | &top->annotation_opts.objdump_path); | |
0d3942db SB |
1199 | if (ret) |
1200 | goto out_delete; | |
1201 | } | |
1202 | ||
e3815264 | 1203 | ret = callchain_param__setup_sample_type(&callchain_param); |
19d4ac3c ACM |
1204 | if (ret) |
1205 | goto out_delete; | |
1206 | ||
9d8b172f | 1207 | if (perf_session__register_idle_thread(top->session) < 0) |
c53d138d NK |
1208 | goto out_delete; |
1209 | ||
0c6b4994 KL |
1210 | if (top->nr_threads_synthesize > 1) |
1211 | perf_set_multithreaded(); | |
340b47f5 | 1212 | |
16c66bc1 JO |
1213 | init_process_thread(top); |
1214 | ||
a40b95bc ACM |
1215 | ret = perf_event__synthesize_bpf_events(&top->tool, perf_event__process, |
1216 | &top->session->machines.host, | |
1217 | &top->record_opts); | |
1218 | if (ret < 0) | |
1219 | pr_warning("Couldn't synthesize bpf events.\n"); | |
1220 | ||
a33fbd56 | 1221 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
340b47f5 | 1222 | top->evlist->threads, false, |
0c6b4994 | 1223 | top->nr_threads_synthesize); |
340b47f5 | 1224 | |
0c6b4994 KL |
1225 | if (top->nr_threads_synthesize > 1) |
1226 | perf_set_singlethreaded(); | |
2e7ea3ab | 1227 | |
35a634f7 | 1228 | if (perf_hpp_list.socket) { |
2e7ea3ab KL |
1229 | ret = perf_env__read_cpu_topology_map(&perf_env); |
1230 | if (ret < 0) | |
1231 | goto out_err_cpu_topo; | |
1232 | } | |
1233 | ||
11859e82 ACM |
1234 | ret = perf_top__start_counters(top); |
1235 | if (ret) | |
1236 | goto out_delete; | |
1237 | ||
1758af10 | 1238 | top->session->evlist = top->evlist; |
7b56cce2 | 1239 | perf_session__set_id_hdr_size(top->session); |
07800601 | 1240 | |
2376c67a ACM |
1241 | /* |
1242 | * When perf is starting the traced process, all the events (apart from | |
1243 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
1244 | * prematurely enabling them. | |
1245 | * | |
1246 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
1247 | * so leave the check here. | |
1248 | */ | |
602ad878 | 1249 | if (!target__none(&opts->target)) |
2376c67a ACM |
1250 | perf_evlist__enable(top->evlist); |
1251 | ||
11859e82 | 1252 | ret = -1; |
16c66bc1 JO |
1253 | if (pthread_create(&thread_process, NULL, process_thread, top)) { |
1254 | ui__error("Could not create process thread.\n"); | |
1255 | goto out_delete; | |
1256 | } | |
1257 | ||
c0443df1 | 1258 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 1259 | display_thread), top)) { |
3780f488 | 1260 | ui__error("Could not create display thread.\n"); |
16c66bc1 | 1261 | goto out_join_thread; |
07800601 IM |
1262 | } |
1263 | ||
1758af10 | 1264 | if (top->realtime_prio) { |
07800601 IM |
1265 | struct sched_param param; |
1266 | ||
1758af10 | 1267 | param.sched_priority = top->realtime_prio; |
07800601 | 1268 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 1269 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 1270 | goto out_join; |
07800601 IM |
1271 | } |
1272 | } | |
1273 | ||
ff27a06a DM |
1274 | /* Wait for a minimal set of events before starting the snapshot */ |
1275 | perf_evlist__poll(top->evlist, 100); | |
1276 | ||
1277 | perf_top__mmap_read(top); | |
1278 | ||
11859e82 | 1279 | while (!done) { |
1758af10 | 1280 | u64 hits = top->samples; |
07800601 | 1281 | |
1758af10 | 1282 | perf_top__mmap_read(top); |
07800601 | 1283 | |
ebebbf08 | 1284 | if (opts->overwrite || (hits == top->samples)) |
f66a889d | 1285 | ret = perf_evlist__poll(top->evlist, 100); |
b135e5ee JO |
1286 | |
1287 | if (resize) { | |
1288 | perf_top__resize(top); | |
1289 | resize = 0; | |
1290 | } | |
07800601 IM |
1291 | } |
1292 | ||
11859e82 | 1293 | ret = 0; |
ae256fa2 JO |
1294 | out_join: |
1295 | pthread_join(thread, NULL); | |
16c66bc1 | 1296 | out_join_thread: |
94ad6e7e | 1297 | pthread_cond_signal(&top->qe.cond); |
16c66bc1 | 1298 | pthread_join(thread_process, NULL); |
19d4ac3c | 1299 | out_delete: |
1758af10 ACM |
1300 | perf_session__delete(top->session); |
1301 | top->session = NULL; | |
19d4ac3c | 1302 | |
11859e82 | 1303 | return ret; |
2e7ea3ab KL |
1304 | |
1305 | out_err_cpu_topo: { | |
1306 | char errbuf[BUFSIZ]; | |
c8b5f2c9 | 1307 | const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); |
2e7ea3ab KL |
1308 | |
1309 | ui__error("Could not read the CPU topology map: %s\n", err); | |
1310 | goto out_delete; | |
1311 | } | |
19d4ac3c ACM |
1312 | } |
1313 | ||
1314 | static int | |
ae779a63 | 1315 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1316 | { |
19d4ac3c | 1317 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1318 | return record_callchain_opt(opt, arg, unset); |
1319 | } | |
19d4ac3c | 1320 | |
ae779a63 JO |
1321 | static int |
1322 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1323 | { | |
2ddd5c04 | 1324 | struct callchain_param *callchain = opt->value; |
a2c10d39 | 1325 | |
2ddd5c04 ACM |
1326 | callchain->enabled = !unset; |
1327 | callchain->record_mode = CALLCHAIN_FP; | |
a2c10d39 NK |
1328 | |
1329 | /* | |
1330 | * --no-call-graph | |
1331 | */ | |
1332 | if (unset) { | |
1333 | symbol_conf.use_callchain = false; | |
2ddd5c04 | 1334 | callchain->record_mode = CALLCHAIN_NONE; |
a2c10d39 NK |
1335 | return 0; |
1336 | } | |
1337 | ||
1338 | return parse_callchain_top_opt(arg); | |
07800601 | 1339 | } |
b456bae0 | 1340 | |
b8cbb349 | 1341 | static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) |
eb853e80 | 1342 | { |
a3a4a3b3 YX |
1343 | if (!strcmp(var, "top.call-graph")) { |
1344 | var = "call-graph.record-mode"; | |
1345 | return perf_default_config(var, value, cb); | |
1346 | } | |
104ac991 NK |
1347 | if (!strcmp(var, "top.children")) { |
1348 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1349 | return 0; | |
1350 | } | |
eb853e80 | 1351 | |
b8cbb349 | 1352 | return 0; |
eb853e80 JO |
1353 | } |
1354 | ||
fa5df943 NK |
1355 | static int |
1356 | parse_percent_limit(const struct option *opt, const char *arg, | |
1357 | int unset __maybe_unused) | |
1358 | { | |
1359 | struct perf_top *top = opt->value; | |
1360 | ||
1361 | top->min_percent = strtof(arg, NULL); | |
1362 | return 0; | |
1363 | } | |
1364 | ||
76a26549 NK |
1365 | const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP |
1366 | "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; | |
a2c10d39 | 1367 | |
b0ad8ea6 | 1368 | int cmd_top(int argc, const char **argv) |
1758af10 | 1369 | { |
16ad2ffb | 1370 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1371 | struct perf_top top = { |
1372 | .count_filter = 5, | |
1373 | .delay_secs = 2, | |
2376c67a ACM |
1374 | .record_opts = { |
1375 | .mmap_pages = UINT_MAX, | |
1376 | .user_freq = UINT_MAX, | |
1377 | .user_interval = ULLONG_MAX, | |
1378 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1379 | .target = { |
2376c67a ACM |
1380 | .uses_mmap = true, |
1381 | }, | |
218d6111 ACM |
1382 | /* |
1383 | * FIXME: This will lose PERF_RECORD_MMAP and other metadata | |
1384 | * when we pause, fix that and reenable. Probably using a | |
1385 | * separate evlist with a dummy event, i.e. a non-overwrite | |
1386 | * ring buffer just for metadata events, while PERF_RECORD_SAMPLE | |
1387 | * stays in overwrite mode. -acme | |
1388 | * */ | |
1389 | .overwrite = 0, | |
16c66bc1 | 1390 | .sample_time = true, |
d1cb9fce | 1391 | }, |
029c75e5 | 1392 | .max_stack = sysctl__max_stack(), |
982d410b | 1393 | .annotation_opts = annotation__default_options, |
0c6b4994 | 1394 | .nr_threads_synthesize = UINT_MAX, |
1758af10 | 1395 | }; |
b4006796 | 1396 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1397 | struct target *target = &opts->target; |
1758af10 | 1398 | const struct option options[] = { |
8c3e10eb | 1399 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1400 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1401 | parse_events_option), |
2376c67a ACM |
1402 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1403 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1404 | "profile events on existing process id"), |
2376c67a | 1405 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1406 | "profile events on existing thread id"), |
2376c67a | 1407 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1408 | "system-wide collection from all CPUs"), |
2376c67a | 1409 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1410 | "list of cpus to monitor"), |
b32d133a ACM |
1411 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1412 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1413 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1414 | "don't load vmlinux even if found"), | |
1b3aae90 ACM |
1415 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
1416 | "file", "kallsyms pathname"), | |
8c3e10eb | 1417 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1418 | "hide kernel symbols"), |
994a1f78 JO |
1419 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1420 | "number of mmap data pages", | |
1421 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1422 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1423 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1424 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1425 | "number of seconds to delay between refreshes"), |
1758af10 | 1426 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1427 | "dump the symbol table used for profiling"), |
8c3e10eb | 1428 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1429 | "only display functions with more events than this"), |
bf80669e | 1430 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1431 | "put the counters into a counter group"), |
2376c67a ACM |
1432 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1433 | "child tasks do not inherit counters"), | |
1758af10 | 1434 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1435 | "symbol to annotate"), |
2376c67a | 1436 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
7831bf23 ACM |
1437 | OPT_CALLBACK('F', "freq", &top.record_opts, "freq or 'max'", |
1438 | "profile at this frequency", | |
1439 | record__parse_freq), | |
8c3e10eb | 1440 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1441 | "display this many functions"), |
8c3e10eb | 1442 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1443 | "hide user symbols"), |
1758af10 ACM |
1444 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1445 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1446 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1447 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1448 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1449 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1450 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1451 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1452 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1453 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1454 | "Show a column with the number of samples"), | |
2ddd5c04 | 1455 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
a2c10d39 | 1456 | NULL, "enables call-graph recording and display", |
ae779a63 | 1457 | &callchain_opt), |
2ddd5c04 | 1458 | OPT_CALLBACK(0, "call-graph", &callchain_param, |
76a26549 | 1459 | "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", |
a2c10d39 | 1460 | top_callchain_help, &parse_callchain_opt), |
1432ec34 NK |
1461 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1462 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1463 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1464 | "Set the maximum stack depth when parsing the callchain. " | |
4cb93446 | 1465 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
b21484f1 GP |
1466 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1467 | "ignore callees of these functions in call graphs", | |
1468 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1469 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1470 | "Show a column with the sum of periods"), | |
1471 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1472 | "only consider symbols in these dsos"), | |
1473 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1474 | "only consider symbols in these comms"), | |
1475 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1476 | "only consider these symbols"), | |
1eddd9e4 | 1477 | OPT_BOOLEAN(0, "source", &top.annotation_opts.annotate_src, |
64c6f0c7 | 1478 | "Interleave source code with assembly code (default)"), |
1eddd9e4 | 1479 | OPT_BOOLEAN(0, "asm-raw", &top.annotation_opts.show_asm_raw, |
64c6f0c7 | 1480 | "Display raw encoding of assembly instructions (default)"), |
763122ad AK |
1481 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1482 | "Enable kernel symbol demangling"), | |
f178fd2d | 1483 | OPT_STRING(0, "objdump", &top.annotation_opts.objdump_path, "path", |
0d3942db | 1484 | "objdump binary to use for disassembly and annotations"), |
a47e843e | 1485 | OPT_STRING('M', "disassembler-style", &top.annotation_opts.disassembler_style, "disassembler style", |
64c6f0c7 | 1486 | "Specify disassembler style (e.g. -M intel for intel syntax)"), |
2376c67a | 1487 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1488 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1489 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1490 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1491 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1492 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1493 | "width[,width...]", | |
1494 | "don't try to adjust column width, use these fixed values"), | |
3fcb10e4 | 1495 | OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, |
9d9cad76 | 1496 | "per thread proc mmap processing timeout in ms"), |
a18b027e AK |
1497 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1498 | "branch any", "sample any taken branches", | |
1499 | parse_branch_stack), | |
1500 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1501 | "branch filter mask", "branch stack filter modes", | |
1502 | parse_branch_stack), | |
053a3989 NK |
1503 | OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
1504 | "Show raw trace event output (do not use print fmt or plugins)"), | |
c92fcfde NK |
1505 | OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
1506 | "Show entries in a hierarchy"), | |
4e303fbe | 1507 | OPT_BOOLEAN(0, "overwrite", &top.record_opts.overwrite, |
218d6111 | 1508 | "Use a backward ring buffer, default: no"), |
868a8329 | 1509 | OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), |
0c6b4994 KL |
1510 | OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, |
1511 | "number of thread to run event synthesize"), | |
b456bae0 | 1512 | OPT_END() |
1758af10 | 1513 | }; |
be772842 ACM |
1514 | const char * const top_usage[] = { |
1515 | "perf top [<options>]", | |
1516 | NULL | |
1517 | }; | |
a635fc51 ACM |
1518 | int status = hists__init(); |
1519 | ||
1520 | if (status < 0) | |
1521 | return status; | |
b456bae0 | 1522 | |
982d410b ACM |
1523 | top.annotation_opts.min_pcnt = 5; |
1524 | top.annotation_opts.context = 4; | |
1525 | ||
334fe7a3 | 1526 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1527 | if (top.evlist == NULL) |
361c99a6 ACM |
1528 | return -ENOMEM; |
1529 | ||
ecc4c561 ACM |
1530 | status = perf_config(perf_top_config, &top); |
1531 | if (status) | |
1532 | return status; | |
eb853e80 | 1533 | |
b456bae0 IM |
1534 | argc = parse_options(argc, argv, options, top_usage, 0); |
1535 | if (argc) | |
1536 | usage_with_options(top_usage, options); | |
1537 | ||
54f8f403 NK |
1538 | if (!top.evlist->nr_entries && |
1539 | perf_evlist__add_default(top.evlist) < 0) { | |
1540 | pr_err("Not enough memory for event selector list\n"); | |
1541 | goto out_delete_evlist; | |
1542 | } | |
1543 | ||
c92fcfde NK |
1544 | if (symbol_conf.report_hierarchy) { |
1545 | /* disable incompatible options */ | |
1546 | symbol_conf.event_group = false; | |
1547 | symbol_conf.cumulate_callchain = false; | |
1548 | ||
1549 | if (field_order) { | |
1550 | pr_err("Error: --hierarchy and --fields options cannot be used together\n"); | |
1551 | parse_options_usage(top_usage, options, "fields", 0); | |
1552 | parse_options_usage(NULL, options, "hierarchy", 0); | |
1553 | goto out_delete_evlist; | |
1554 | } | |
1555 | } | |
1556 | ||
590ac60d JY |
1557 | if (opts->branch_stack && callchain_param.enabled) |
1558 | symbol_conf.show_branchflag_count = true; | |
1559 | ||
512ae1bd | 1560 | sort__mode = SORT_MODE__TOP; |
6fe8c26d | 1561 | /* display thread wants entries to be collapsed in a different tree */ |
52225036 | 1562 | perf_hpp_list.need_collapse = 1; |
ab81f3fd | 1563 | |
3ee60c3b ACM |
1564 | if (top.use_stdio) |
1565 | use_browser = 0; | |
1566 | else if (top.use_tui) | |
1567 | use_browser = 1; | |
1568 | ||
1569 | setup_browser(false); | |
1570 | ||
40184c46 | 1571 | if (setup_sorting(top.evlist) < 0) { |
6fe8c26d NK |
1572 | if (sort_order) |
1573 | parse_options_usage(top_usage, options, "s", 1); | |
1574 | if (field_order) | |
1575 | parse_options_usage(sort_order ? NULL : top_usage, | |
1576 | options, "fields", 0); | |
d37a92dc NK |
1577 | goto out_delete_evlist; |
1578 | } | |
ab81f3fd | 1579 | |
602ad878 | 1580 | status = target__validate(target); |
16ad2ffb | 1581 | if (status) { |
602ad878 | 1582 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1583 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1584 | } |
1585 | ||
602ad878 | 1586 | status = target__parse_uid(target); |
16ad2ffb NK |
1587 | if (status) { |
1588 | int saved_errno = errno; | |
4bd0f2d2 | 1589 | |
602ad878 | 1590 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1591 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1592 | |
1593 | status = -saved_errno; | |
0d37aa34 | 1594 | goto out_delete_evlist; |
16ad2ffb | 1595 | } |
0d37aa34 | 1596 | |
602ad878 | 1597 | if (target__none(target)) |
2376c67a | 1598 | target->system_wide = true; |
10b47d54 | 1599 | |
f8a5c0b2 ACM |
1600 | if (perf_evlist__create_maps(top.evlist, target) < 0) { |
1601 | ui__error("Couldn't create thread/CPU maps: %s\n", | |
c8b5f2c9 | 1602 | errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); |
f8a5c0b2 | 1603 | goto out_delete_evlist; |
69aad6f1 | 1604 | } |
5a8e5a30 | 1605 | |
8c3e10eb ACM |
1606 | if (top.delay_secs < 1) |
1607 | top.delay_secs = 1; | |
2f335a02 | 1608 | |
b4006796 | 1609 | if (record_opts__config(opts)) { |
2376c67a | 1610 | status = -EINVAL; |
03ad9747 | 1611 | goto out_delete_evlist; |
69aad6f1 ACM |
1612 | } |
1613 | ||
0c21f736 | 1614 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1615 | |
e3815264 | 1616 | if (!callchain_param.enabled) { |
1432ec34 NK |
1617 | symbol_conf.cumulate_callchain = false; |
1618 | perf_hpp__cancel_cumulate(); | |
1619 | } | |
1620 | ||
792aeafa NK |
1621 | if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
1622 | callchain_param.order = ORDER_CALLER; | |
1623 | ||
b01141f4 ACM |
1624 | status = symbol__annotation_init(); |
1625 | if (status < 0) | |
1626 | goto out_delete_evlist; | |
69aad6f1 | 1627 | |
7f0b6fde ACM |
1628 | annotation_config__init(); |
1629 | ||
69aad6f1 | 1630 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); |
0a7e6d1b | 1631 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1632 | return -1; |
1633 | ||
08e71542 | 1634 | sort__setup_elide(stdout); |
ab81f3fd | 1635 | |
1758af10 | 1636 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1637 | if (top.print_entries == 0) { |
1758af10 | 1638 | perf_top__update_print_entries(&top); |
244a1086 | 1639 | signal(SIGWINCH, winch_sig); |
3b6ed988 ACM |
1640 | } |
1641 | ||
1758af10 | 1642 | status = __cmd_top(&top); |
806fb630 | 1643 | |
0d37aa34 | 1644 | out_delete_evlist: |
8c3e10eb | 1645 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1646 | |
1647 | return status; | |
b456bae0 | 1648 | } |