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" |
41840d21 | 25 | #include "util/config.h" |
8fc0321f | 26 | #include "util/color.h" |
5d8bb1ec | 27 | #include "util/drv_configs.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" |
b3165f41 ACM |
32 | #include "util/session.h" |
33 | #include "util/symbol.h" | |
439d473b | 34 | #include "util/thread.h" |
fd78260b | 35 | #include "util/thread_map.h" |
8c3e10eb | 36 | #include "util/top.h" |
43cbcd8a | 37 | #include <linux/rbtree.h> |
4b6ab94e | 38 | #include <subcmd/parse-options.h> |
b456bae0 | 39 | #include "util/parse-events.h" |
a12b51c4 | 40 | #include "util/cpumap.h" |
69aad6f1 | 41 | #include "util/xyarray.h" |
ab81f3fd | 42 | #include "util/sort.h" |
b0742e90 | 43 | #include "util/term.h" |
6b118e92 | 44 | #include "util/intlist.h" |
a18b027e | 45 | #include "util/parse-branch-options.h" |
0d3942db | 46 | #include "arch/common.h" |
07800601 | 47 | |
8f28827a | 48 | #include "util/debug.h" |
16c66bc1 | 49 | #include "util/ordered-events.h" |
8f28827a | 50 | |
07800601 | 51 | #include <assert.h> |
31d68e7b | 52 | #include <elf.h> |
07800601 | 53 | #include <fcntl.h> |
0e9b20b8 | 54 | |
07800601 | 55 | #include <stdio.h> |
923c42c1 MG |
56 | #include <termios.h> |
57 | #include <unistd.h> | |
9486aa38 | 58 | #include <inttypes.h> |
0e9b20b8 | 59 | |
07800601 | 60 | #include <errno.h> |
07800601 IM |
61 | #include <time.h> |
62 | #include <sched.h> | |
9607ad3a | 63 | #include <signal.h> |
07800601 IM |
64 | |
65 | #include <sys/syscall.h> | |
66 | #include <sys/ioctl.h> | |
a8fa4960 | 67 | #include <poll.h> |
07800601 IM |
68 | #include <sys/prctl.h> |
69 | #include <sys/wait.h> | |
70 | #include <sys/uio.h> | |
31d68e7b | 71 | #include <sys/utsname.h> |
07800601 IM |
72 | #include <sys/mman.h> |
73 | ||
531d2410 | 74 | #include <linux/stringify.h> |
b9c4b0f4 | 75 | #include <linux/time64.h> |
07800601 IM |
76 | #include <linux/types.h> |
77 | ||
3d689ed6 ACM |
78 | #include "sane_ctype.h" |
79 | ||
11859e82 | 80 | static volatile int done; |
b135e5ee | 81 | static volatile int resize; |
11859e82 | 82 | |
933cbb1c NK |
83 | #define HEADER_LINE_NR 5 |
84 | ||
1758af10 | 85 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 86 | { |
933cbb1c | 87 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
88 | } |
89 | ||
244a1086 | 90 | static void winch_sig(int sig __maybe_unused) |
3b6ed988 | 91 | { |
b135e5ee JO |
92 | resize = 1; |
93 | } | |
1758af10 | 94 | |
b135e5ee JO |
95 | static void perf_top__resize(struct perf_top *top) |
96 | { | |
1758af10 ACM |
97 | get_term_dimensions(&top->winsize); |
98 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
99 | } |
100 | ||
1758af10 | 101 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 | 102 | { |
a7eec4c6 | 103 | struct perf_evsel *evsel = hists_to_evsel(he->hists); |
923c42c1 | 104 | struct symbol *sym; |
ce6f4fab | 105 | struct annotation *notes; |
439d473b | 106 | struct map *map; |
36532461 | 107 | int err = -1; |
923c42c1 | 108 | |
ab81f3fd | 109 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
110 | return -1; |
111 | ||
ab81f3fd ACM |
112 | sym = he->ms.sym; |
113 | map = he->ms.map; | |
b0a9ab62 ACM |
114 | |
115 | /* | |
116 | * We can't annotate with just /proc/kallsyms | |
117 | */ | |
bbb7f846 AH |
118 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
119 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
120 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
121 | "path\n", sym->name); | |
122 | sleep(1); | |
b0a9ab62 | 123 | return -1; |
b269876c ACM |
124 | } |
125 | ||
ce6f4fab | 126 | notes = symbol__annotation(sym); |
ce6f4fab | 127 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 128 | |
14c8dde1 | 129 | if (!symbol__hists(sym, top->evlist->nr_entries)) { |
c97cf422 | 130 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
131 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
132 | sym->name); | |
ce6f4fab | 133 | sleep(1); |
c97cf422 | 134 | return err; |
923c42c1 | 135 | } |
36532461 | 136 | |
380195e2 | 137 | err = symbol__annotate(sym, map, evsel, 0, &top->annotation_opts, NULL); |
36532461 | 138 | if (err == 0) { |
1758af10 | 139 | top->sym_filter_entry = he; |
ee51d851 ACM |
140 | } else { |
141 | char msg[BUFSIZ]; | |
142 | symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); | |
143 | pr_err("Couldn't annotate %s: %s\n", sym->name, msg); | |
36532461 | 144 | } |
c97cf422 | 145 | |
ce6f4fab | 146 | pthread_mutex_unlock(¬es->lock); |
36532461 | 147 | return err; |
923c42c1 MG |
148 | } |
149 | ||
ab81f3fd | 150 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 151 | { |
ab81f3fd | 152 | struct symbol *sym = he->ms.sym; |
36532461 | 153 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
154 | } |
155 | ||
31d68e7b ACM |
156 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
157 | { | |
158 | struct utsname uts; | |
159 | int err = uname(&uts); | |
160 | ||
161 | ui__warning("Out of bounds address found:\n\n" | |
162 | "Addr: %" PRIx64 "\n" | |
163 | "DSO: %s %c\n" | |
164 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
165 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
166 | "Arch: %s\n" | |
167 | "Kernel: %s\n" | |
168 | "Tools: %s\n\n" | |
169 | "Not all samples will be on the annotation output.\n\n" | |
170 | "Please report to linux-kernel@vger.kernel.org\n", | |
171 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
172 | map->start, map->end, sym->start, sym->end, | |
173 | sym->binding == STB_GLOBAL ? 'g' : | |
174 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
175 | err ? "[unknown]" : uts.machine, | |
176 | err ? "[unknown]" : uts.release, perf_version_string); | |
177 | if (use_browser <= 0) | |
178 | sleep(5); | |
48000a1a | 179 | |
31d68e7b ACM |
180 | map->erange_warned = true; |
181 | } | |
182 | ||
1758af10 ACM |
183 | static void perf_top__record_precise_ip(struct perf_top *top, |
184 | struct hist_entry *he, | |
bab89f6a | 185 | struct perf_sample *sample, |
e345f3bd | 186 | struct perf_evsel *evsel, u64 ip) |
923c42c1 | 187 | { |
ce6f4fab | 188 | struct annotation *notes; |
beefb8d0 | 189 | struct symbol *sym = he->ms.sym; |
48c65bda | 190 | int err = 0; |
ce6f4fab | 191 | |
beefb8d0 NK |
192 | if (sym == NULL || (use_browser == 0 && |
193 | (top->sym_filter_entry == NULL || | |
194 | top->sym_filter_entry->ms.sym != sym))) | |
923c42c1 MG |
195 | return; |
196 | ||
ce6f4fab ACM |
197 | notes = symbol__annotation(sym); |
198 | ||
199 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
200 | return; |
201 | ||
e345f3bd | 202 | err = hist_entry__inc_addr_samples(he, sample, evsel, ip); |
c7ad21af | 203 | |
ce6f4fab | 204 | pthread_mutex_unlock(¬es->lock); |
31d68e7b | 205 | |
151ee834 NK |
206 | if (unlikely(err)) { |
207 | /* | |
208 | * This function is now called with he->hists->lock held. | |
209 | * Release it before going to sleep. | |
210 | */ | |
211 | pthread_mutex_unlock(&he->hists->lock); | |
212 | ||
213 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
214 | ui__warn_map_erange(he->ms.map, sym, ip); | |
215 | else if (err == -ENOMEM) { | |
216 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
217 | sym->name); | |
218 | sleep(1); | |
219 | } | |
220 | ||
221 | pthread_mutex_lock(&he->hists->lock); | |
b66d8c0c | 222 | } |
923c42c1 MG |
223 | } |
224 | ||
1758af10 | 225 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 226 | { |
1758af10 | 227 | struct hist_entry *he = top->sym_filter_entry; |
f681d593 | 228 | struct perf_evsel *evsel = hists_to_evsel(he->hists); |
ce6f4fab | 229 | struct annotation *notes; |
923c42c1 | 230 | struct symbol *symbol; |
36532461 | 231 | int more; |
923c42c1 | 232 | |
ab81f3fd | 233 | if (!he) |
923c42c1 MG |
234 | return; |
235 | ||
ab81f3fd | 236 | symbol = he->ms.sym; |
ce6f4fab ACM |
237 | notes = symbol__annotation(symbol); |
238 | ||
239 | pthread_mutex_lock(¬es->lock); | |
240 | ||
f681d593 JO |
241 | symbol__calc_percent(symbol, evsel); |
242 | ||
ce6f4fab ACM |
243 | if (notes->src == NULL) |
244 | goto out_unlock; | |
923c42c1 | 245 | |
7289f83c | 246 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
982d410b | 247 | printf(" Events Pcnt (>=%d%%)\n", top->annotation_opts.min_pcnt); |
923c42c1 | 248 | |
982d410b | 249 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, &top->annotation_opts); |
5d484f99 ACM |
250 | |
251 | if (top->evlist->enabled) { | |
252 | if (top->zero) | |
253 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
254 | else | |
255 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
256 | } | |
36532461 | 257 | if (more != 0) |
923c42c1 | 258 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
259 | out_unlock: |
260 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 261 | } |
07800601 | 262 | |
1758af10 | 263 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 264 | { |
8c3e10eb ACM |
265 | char bf[160]; |
266 | int printed = 0; | |
1758af10 | 267 | const int win_width = top->winsize.ws_col - 1; |
452ce03b JO |
268 | struct perf_evsel *evsel = top->sym_evsel; |
269 | struct hists *hists = evsel__hists(evsel); | |
d94b9430 | 270 | |
0f5486b5 | 271 | puts(CONSOLE_CLEAR); |
07800601 | 272 | |
1758af10 | 273 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 274 | printf("%s\n", bf); |
07800601 | 275 | |
1758af10 | 276 | perf_top__reset_sample_counters(top); |
07800601 | 277 | |
1a105f74 | 278 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 279 | |
a1ff5b05 KL |
280 | if (!top->record_opts.overwrite && |
281 | (hists->stats.nr_lost_warned != | |
282 | hists->stats.nr_events[PERF_RECORD_LOST])) { | |
4ea062ed ACM |
283 | hists->stats.nr_lost_warned = |
284 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
285 | color_fprintf(stdout, PERF_COLOR_RED, |
286 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 287 | hists->stats.nr_lost_warned); |
ab81f3fd | 288 | ++printed; |
93fc64f1 ACM |
289 | } |
290 | ||
1758af10 ACM |
291 | if (top->sym_filter_entry) { |
292 | perf_top__show_details(top); | |
923c42c1 MG |
293 | return; |
294 | } | |
295 | ||
5d484f99 ACM |
296 | if (top->evlist->enabled) { |
297 | if (top->zero) { | |
298 | hists__delete_entries(hists); | |
299 | } else { | |
300 | hists__decay_entries(hists, top->hide_user_symbols, | |
301 | top->hide_kernel_symbols); | |
302 | } | |
701937bd NK |
303 | } |
304 | ||
4ea062ed | 305 | hists__collapse_resort(hists, NULL); |
452ce03b | 306 | perf_evsel__output_resort(evsel, NULL); |
701937bd | 307 | |
4ea062ed | 308 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 309 | putchar('\n'); |
4ea062ed | 310 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
e9de7e2f | 311 | top->min_percent, stdout, !symbol_conf.use_callchain); |
07800601 IM |
312 | } |
313 | ||
923c42c1 MG |
314 | static void prompt_integer(int *target, const char *msg) |
315 | { | |
316 | char *buf = malloc(0), *p; | |
317 | size_t dummy = 0; | |
318 | int tmp; | |
319 | ||
320 | fprintf(stdout, "\n%s: ", msg); | |
321 | if (getline(&buf, &dummy, stdin) < 0) | |
322 | return; | |
323 | ||
324 | p = strchr(buf, '\n'); | |
325 | if (p) | |
326 | *p = 0; | |
327 | ||
328 | p = buf; | |
329 | while(*p) { | |
330 | if (!isdigit(*p)) | |
331 | goto out_free; | |
332 | p++; | |
333 | } | |
334 | tmp = strtoul(buf, NULL, 10); | |
335 | *target = tmp; | |
336 | out_free: | |
337 | free(buf); | |
338 | } | |
339 | ||
340 | static void prompt_percent(int *target, const char *msg) | |
341 | { | |
342 | int tmp = 0; | |
343 | ||
344 | prompt_integer(&tmp, msg); | |
345 | if (tmp >= 0 && tmp <= 100) | |
346 | *target = tmp; | |
347 | } | |
348 | ||
1758af10 | 349 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
350 | { |
351 | char *buf = malloc(0), *p; | |
1758af10 | 352 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 353 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 354 | struct rb_node *next; |
923c42c1 MG |
355 | size_t dummy = 0; |
356 | ||
357 | /* zero counters of active symbol */ | |
358 | if (syme) { | |
923c42c1 | 359 | __zero_source_counters(syme); |
1758af10 | 360 | top->sym_filter_entry = NULL; |
923c42c1 MG |
361 | } |
362 | ||
363 | fprintf(stdout, "\n%s: ", msg); | |
364 | if (getline(&buf, &dummy, stdin) < 0) | |
365 | goto out_free; | |
366 | ||
367 | p = strchr(buf, '\n'); | |
368 | if (p) | |
369 | *p = 0; | |
370 | ||
4ea062ed | 371 | next = rb_first(&hists->entries); |
ab81f3fd ACM |
372 | while (next) { |
373 | n = rb_entry(next, struct hist_entry, rb_node); | |
374 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
375 | found = n; | |
923c42c1 MG |
376 | break; |
377 | } | |
ab81f3fd | 378 | next = rb_next(&n->rb_node); |
923c42c1 MG |
379 | } |
380 | ||
381 | if (!found) { | |
66aeb6d5 | 382 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 383 | sleep(1); |
923c42c1 | 384 | } else |
1758af10 | 385 | perf_top__parse_source(top, found); |
923c42c1 MG |
386 | |
387 | out_free: | |
388 | free(buf); | |
389 | } | |
390 | ||
1758af10 | 391 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 392 | { |
091bd2e9 MG |
393 | char *name = NULL; |
394 | ||
1758af10 ACM |
395 | if (top->sym_filter_entry) { |
396 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
397 | name = sym->name; |
398 | } | |
399 | ||
400 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
401 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
402 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 403 | |
1758af10 | 404 | if (top->evlist->nr_entries > 1) |
7289f83c | 405 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 406 | |
1758af10 | 407 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 408 | |
982d410b | 409 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->annotation_opts.min_pcnt); |
6cff0e8d KS |
410 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
411 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 412 | |
8ffcda17 | 413 | fprintf(stdout, |
8fce3743 | 414 | "\t[K] hide kernel symbols. \t(%s)\n", |
1758af10 | 415 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
416 | fprintf(stdout, |
417 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
418 | top->hide_user_symbols ? "yes" : "no"); |
419 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
420 | fprintf(stdout, "\t[qQ] quit.\n"); |
421 | } | |
422 | ||
1758af10 | 423 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
424 | { |
425 | switch (c) { | |
426 | case 'd': | |
427 | case 'e': | |
428 | case 'f': | |
429 | case 'z': | |
430 | case 'q': | |
431 | case 'Q': | |
8ffcda17 ACM |
432 | case 'K': |
433 | case 'U': | |
6cff0e8d KS |
434 | case 'F': |
435 | case 's': | |
436 | case 'S': | |
091bd2e9 MG |
437 | return 1; |
438 | case 'E': | |
1758af10 | 439 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
440 | default: |
441 | break; | |
091bd2e9 MG |
442 | } |
443 | ||
444 | return 0; | |
923c42c1 MG |
445 | } |
446 | ||
11859e82 | 447 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 448 | { |
11859e82 ACM |
449 | bool ret = true; |
450 | ||
1758af10 | 451 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 452 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 453 | struct termios save; |
091bd2e9 | 454 | |
1758af10 | 455 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
456 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
457 | fflush(stdout); | |
458 | ||
3969cc09 | 459 | set_term_quiet_input(&save); |
091bd2e9 MG |
460 | |
461 | poll(&stdin_poll, 1, -1); | |
462 | c = getc(stdin); | |
463 | ||
464 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 465 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 466 | return ret; |
091bd2e9 MG |
467 | } |
468 | ||
923c42c1 MG |
469 | switch (c) { |
470 | case 'd': | |
1758af10 ACM |
471 | prompt_integer(&top->delay_secs, "Enter display delay"); |
472 | if (top->delay_secs < 1) | |
473 | top->delay_secs = 1; | |
923c42c1 MG |
474 | break; |
475 | case 'e': | |
1758af10 ACM |
476 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
477 | if (top->print_entries == 0) { | |
b135e5ee | 478 | perf_top__resize(top); |
244a1086 | 479 | signal(SIGWINCH, winch_sig); |
509605db | 480 | } else { |
3b6ed988 | 481 | signal(SIGWINCH, SIG_DFL); |
509605db | 482 | } |
923c42c1 MG |
483 | break; |
484 | case 'E': | |
1758af10 | 485 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
486 | /* Select 0 as the default event: */ |
487 | int counter = 0; | |
488 | ||
923c42c1 | 489 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 490 | |
e5cadb93 | 491 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
7289f83c | 492 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 493 | |
ec52d976 | 494 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 495 | |
1758af10 | 496 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 497 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 498 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 499 | sleep(1); |
69aad6f1 | 500 | break; |
923c42c1 | 501 | } |
e5cadb93 | 502 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
1758af10 | 503 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 504 | break; |
ec52d976 | 505 | } else |
0c21f736 | 506 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
507 | break; |
508 | case 'f': | |
1758af10 | 509 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
510 | break; |
511 | case 'F': | |
982d410b | 512 | prompt_percent(&top->annotation_opts.min_pcnt, |
1758af10 | 513 | "Enter details display event filter (percent)"); |
923c42c1 | 514 | break; |
8ffcda17 | 515 | case 'K': |
1758af10 | 516 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 517 | break; |
923c42c1 MG |
518 | case 'q': |
519 | case 'Q': | |
520 | printf("exiting.\n"); | |
1758af10 ACM |
521 | if (top->dump_symtab) |
522 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
523 | ret = false; |
524 | break; | |
923c42c1 | 525 | case 's': |
1758af10 | 526 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
527 | break; |
528 | case 'S': | |
1758af10 | 529 | if (!top->sym_filter_entry) |
923c42c1 MG |
530 | break; |
531 | else { | |
1758af10 | 532 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 533 | |
1758af10 | 534 | top->sym_filter_entry = NULL; |
923c42c1 | 535 | __zero_source_counters(syme); |
923c42c1 MG |
536 | } |
537 | break; | |
8ffcda17 | 538 | case 'U': |
1758af10 | 539 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 540 | break; |
923c42c1 | 541 | case 'z': |
1758af10 | 542 | top->zero = !top->zero; |
923c42c1 | 543 | break; |
83a0944f IM |
544 | default: |
545 | break; | |
923c42c1 | 546 | } |
11859e82 ACM |
547 | |
548 | return ret; | |
923c42c1 MG |
549 | } |
550 | ||
ab81f3fd ACM |
551 | static void perf_top__sort_new_samples(void *arg) |
552 | { | |
553 | struct perf_top *t = arg; | |
452ce03b | 554 | struct perf_evsel *evsel = t->sym_evsel; |
4ea062ed ACM |
555 | struct hists *hists; |
556 | ||
ab81f3fd ACM |
557 | if (t->evlist->selected != NULL) |
558 | t->sym_evsel = t->evlist->selected; | |
559 | ||
452ce03b | 560 | hists = evsel__hists(evsel); |
4ea062ed | 561 | |
5d484f99 ACM |
562 | if (t->evlist->enabled) { |
563 | if (t->zero) { | |
564 | hists__delete_entries(hists); | |
565 | } else { | |
566 | hists__decay_entries(hists, t->hide_user_symbols, | |
567 | t->hide_kernel_symbols); | |
568 | } | |
701937bd NK |
569 | } |
570 | ||
4ea062ed | 571 | hists__collapse_resort(hists, NULL); |
452ce03b | 572 | perf_evsel__output_resort(evsel, NULL); |
254de74c JO |
573 | |
574 | if (t->lost) | |
575 | pr_warning("Too slow to read ring buffer (change period (-c/-F) or limit CPUs (-C)\n"); | |
576 | ||
577 | perf_top__reset_sample_counters(t); | |
ab81f3fd ACM |
578 | } |
579 | ||
c94cef4b JO |
580 | static void stop_top(void) |
581 | { | |
582 | session_done = 1; | |
583 | done = 1; | |
584 | } | |
585 | ||
1758af10 | 586 | static void *display_thread_tui(void *arg) |
c0443df1 | 587 | { |
0d37aa34 | 588 | struct perf_evsel *pos; |
1758af10 | 589 | struct perf_top *top = arg; |
ab81f3fd | 590 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
591 | struct hist_browser_timer hbt = { |
592 | .timer = perf_top__sort_new_samples, | |
593 | .arg = top, | |
594 | .refresh = top->delay_secs, | |
595 | }; | |
ab81f3fd | 596 | |
868a8329 KJ |
597 | /* In order to read symbols from other namespaces perf to needs to call |
598 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
599 | * unshare(2) the fs so that we may continue to setns into namespaces | |
600 | * that we're observing. | |
601 | */ | |
602 | unshare(CLONE_FS); | |
603 | ||
1758af10 | 604 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
605 | |
606 | /* | |
607 | * Initialize the uid_filter_str, in the future the TUI will allow | |
adba1634 | 608 | * Zooming in/out UIDs. For now just use whatever the user passed |
0d37aa34 ACM |
609 | * via --uid. |
610 | */ | |
e5cadb93 | 611 | evlist__for_each_entry(top->evlist, pos) { |
4ea062ed ACM |
612 | struct hists *hists = evsel__hists(pos); |
613 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
614 | } | |
0d37aa34 | 615 | |
13d1e536 NK |
616 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
617 | top->min_percent, | |
a1ff5b05 | 618 | &top->session->header.env, |
cd0cccba ACM |
619 | !top->record_opts.overwrite, |
620 | &top->annotation_opts); | |
ab81f3fd | 621 | |
c94cef4b | 622 | stop_top(); |
c0443df1 ACM |
623 | return NULL; |
624 | } | |
625 | ||
4a1a9971 JO |
626 | static void display_sig(int sig __maybe_unused) |
627 | { | |
c94cef4b | 628 | stop_top(); |
4a1a9971 JO |
629 | } |
630 | ||
631 | static void display_setup_sig(void) | |
632 | { | |
09f4d78a ACM |
633 | signal(SIGSEGV, sighandler_dump_stack); |
634 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
635 | signal(SIGINT, display_sig); |
636 | signal(SIGQUIT, display_sig); | |
637 | signal(SIGTERM, display_sig); | |
638 | } | |
639 | ||
1758af10 | 640 | static void *display_thread(void *arg) |
07800601 | 641 | { |
0f5486b5 | 642 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 643 | struct termios save; |
1758af10 | 644 | struct perf_top *top = arg; |
923c42c1 MG |
645 | int delay_msecs, c; |
646 | ||
868a8329 KJ |
647 | /* In order to read symbols from other namespaces perf to needs to call |
648 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
649 | * unshare(2) the fs so that we may continue to setns into namespaces | |
650 | * that we're observing. | |
651 | */ | |
652 | unshare(CLONE_FS); | |
653 | ||
4a1a9971 | 654 | display_setup_sig(); |
3af6e338 | 655 | pthread__unblock_sigwinch(); |
923c42c1 | 656 | repeat: |
b9c4b0f4 | 657 | delay_msecs = top->delay_secs * MSEC_PER_SEC; |
9398c484 | 658 | set_term_quiet_input(&save); |
923c42c1 MG |
659 | /* trash return*/ |
660 | getc(stdin); | |
07800601 | 661 | |
11859e82 | 662 | while (!done) { |
1758af10 | 663 | perf_top__print_sym_table(top); |
3af6e338 ACM |
664 | /* |
665 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
666 | * refresh screen in both cases. | |
667 | */ | |
668 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
669 | case 0: | |
670 | continue; | |
671 | case -1: | |
672 | if (errno == EINTR) | |
673 | continue; | |
7b0214b7 | 674 | __fallthrough; |
3af6e338 | 675 | default: |
11859e82 ACM |
676 | c = getc(stdin); |
677 | tcsetattr(0, TCSAFLUSH, &save); | |
678 | ||
679 | if (perf_top__handle_keypress(top, c)) | |
680 | goto repeat; | |
c94cef4b | 681 | stop_top(); |
3af6e338 ACM |
682 | } |
683 | } | |
07800601 | 684 | |
4a1a9971 | 685 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
686 | return NULL; |
687 | } | |
688 | ||
7c50391f NK |
689 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
690 | struct addr_location *al, bool single, | |
691 | void *arg) | |
692 | { | |
693 | struct perf_top *top = arg; | |
694 | struct hist_entry *he = iter->he; | |
695 | struct perf_evsel *evsel = iter->evsel; | |
696 | ||
2e0453af | 697 | if (perf_hpp_list.sym && single) |
e345f3bd | 698 | perf_top__record_precise_ip(top, he, iter->sample, evsel, al->addr); |
7c50391f | 699 | |
a18b027e AK |
700 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
701 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
702 | return 0; |
703 | } | |
704 | ||
1758af10 ACM |
705 | static void perf_event__process_sample(struct perf_tool *tool, |
706 | const union perf_event *event, | |
7b27509f | 707 | struct perf_evsel *evsel, |
8115d60c | 708 | struct perf_sample *sample, |
743eb868 | 709 | struct machine *machine) |
07800601 | 710 | { |
1758af10 | 711 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 712 | struct addr_location al; |
19d4ac3c | 713 | int err; |
5b2bb75a | 714 | |
23346f21 | 715 | if (!machine && perf_guest) { |
6b118e92 DA |
716 | static struct intlist *seen; |
717 | ||
718 | if (!seen) | |
ffe0fb76 | 719 | seen = intlist__new(NULL); |
6b118e92 | 720 | |
ef89325f | 721 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 722 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
723 | sample->pid); |
724 | intlist__add(seen, sample->pid); | |
6b118e92 | 725 | } |
a1645ce1 ZY |
726 | return; |
727 | } | |
728 | ||
0c095715 | 729 | if (!machine) { |
11859e82 | 730 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 731 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
732 | return; |
733 | } | |
734 | ||
8115d60c | 735 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 736 | top->exact_samples++; |
1676b8a0 | 737 | |
bb3eb566 | 738 | if (machine__resolve(machine, &al, sample) < 0) |
1ed091c4 | 739 | return; |
07800601 | 740 | |
e77a0742 | 741 | if (!machine->kptr_restrict_warned && |
5f6f5580 ACM |
742 | symbol_conf.kptr_restrict && |
743 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
b89a5124 ACM |
744 | if (!perf_evlist__exclude_kernel(top->session->evlist)) { |
745 | ui__warning( | |
5f6f5580 ACM |
746 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" |
747 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
748 | "Kernel%s samples will not be resolved.\n", | |
e94b861a | 749 | al.map && map__has_symbols(al.map) ? |
5f6f5580 | 750 | " modules" : ""); |
b89a5124 ACM |
751 | if (use_browser <= 0) |
752 | sleep(5); | |
753 | } | |
e77a0742 | 754 | machine->kptr_restrict_warned = true; |
5f6f5580 ACM |
755 | } |
756 | ||
68766bfa | 757 | if (al.sym == NULL && al.map != NULL) { |
e4a338d0 | 758 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
759 | /* |
760 | * As we do lazy loading of symtabs we only will know if the | |
761 | * specified vmlinux file is invalid when we actually have a | |
762 | * hit in kernel space and then try to load it. So if we get | |
763 | * here and there are _no_ symbols in the DSO backing the | |
764 | * kernel map, bail out. | |
765 | * | |
766 | * We may never get here, for instance, if we use -K/ | |
767 | * --hide-kernel-symbols, even if the user specifies an | |
768 | * invalid --vmlinux ;-) | |
769 | */ | |
e77a0742 | 770 | if (!machine->kptr_restrict_warned && !top->vmlinux_warned && |
e94b861a | 771 | __map__is_kernel(al.map) && map__has_symbols(al.map)) { |
e4a338d0 | 772 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
773 | char serr[256]; |
774 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
775 | ui__warning("The %s file can't be used: %s\n%s", | |
776 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
777 | } else { |
778 | ui__warning("A vmlinux file was not found.\n%s", | |
779 | msg); | |
780 | } | |
781 | ||
782 | if (use_browser <= 0) | |
783 | sleep(5); | |
1758af10 | 784 | top->vmlinux_warned = true; |
72b8fa17 | 785 | } |
6cff0e8d KS |
786 | } |
787 | ||
b55cc4ed | 788 | if (al.sym == NULL || !al.sym->idle) { |
4ea062ed | 789 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 790 | struct hist_entry_iter iter = { |
063bd936 NK |
791 | .evsel = evsel, |
792 | .sample = sample, | |
793 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 794 | }; |
70db7533 | 795 | |
7c50391f NK |
796 | if (symbol_conf.cumulate_callchain) |
797 | iter.ops = &hist_iter_cumulative; | |
798 | else | |
799 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 800 | |
4ea062ed | 801 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 802 | |
063bd936 | 803 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
804 | if (err < 0) |
805 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 806 | |
4ea062ed | 807 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 808 | } |
ab81f3fd | 809 | |
b91fc39f | 810 | addr_location__put(&al); |
07800601 IM |
811 | } |
812 | ||
d24e3c98 JO |
813 | static void |
814 | perf_top__process_lost(struct perf_top *top, union perf_event *event, | |
815 | struct perf_evsel *evsel) | |
816 | { | |
817 | struct hists *hists = evsel__hists(evsel); | |
818 | ||
819 | top->lost += event->lost.lost; | |
820 | top->lost_total += event->lost.lost; | |
821 | hists->stats.total_lost += event->lost.lost; | |
822 | } | |
823 | ||
824 | static void | |
825 | perf_top__process_lost_samples(struct perf_top *top, | |
826 | union perf_event *event, | |
827 | struct perf_evsel *evsel) | |
828 | { | |
829 | struct hists *hists = evsel__hists(evsel); | |
830 | ||
831 | top->lost += event->lost_samples.lost; | |
832 | top->lost_total += event->lost_samples.lost; | |
833 | hists->stats.total_lost_samples += event->lost_samples.lost; | |
834 | } | |
835 | ||
1758af10 | 836 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 837 | { |
ebebbf08 KL |
838 | struct record_opts *opts = &top->record_opts; |
839 | struct perf_evlist *evlist = top->evlist; | |
ebebbf08 | 840 | struct perf_mmap *md; |
8115d60c | 841 | union perf_event *event; |
07800601 | 842 | |
ebebbf08 | 843 | md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx]; |
b9bae2c8 | 844 | if (perf_mmap__read_init(md) < 0) |
ebebbf08 KL |
845 | return; |
846 | ||
0019dc87 | 847 | while ((event = perf_mmap__read_event(md)) != NULL) { |
16c66bc1 JO |
848 | u64 timestamp = -1ULL; |
849 | int ret; | |
7b27509f | 850 | |
16c66bc1 JO |
851 | ret = perf_evlist__parse_sample_timestamp(evlist, event, ×tamp); |
852 | if (ret && ret != -1) | |
743eb868 | 853 | break; |
743eb868 | 854 | |
16c66bc1 | 855 | ret = ordered_events__queue(top->qe.in, event, timestamp, 0); |
16c66bc1 JO |
856 | if (ret) |
857 | break; | |
94ad6e7e JO |
858 | |
859 | perf_mmap__consume(md); | |
860 | ||
861 | if (top->qe.rotate) { | |
862 | pthread_mutex_lock(&top->qe.mutex); | |
863 | top->qe.rotate = false; | |
864 | pthread_cond_signal(&top->qe.cond); | |
865 | pthread_mutex_unlock(&top->qe.mutex); | |
866 | } | |
07800601 | 867 | } |
ebebbf08 KL |
868 | |
869 | perf_mmap__read_done(md); | |
07800601 IM |
870 | } |
871 | ||
1758af10 | 872 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 873 | { |
ebebbf08 KL |
874 | bool overwrite = top->record_opts.overwrite; |
875 | struct perf_evlist *evlist = top->evlist; | |
70db7533 ACM |
876 | int i; |
877 | ||
ebebbf08 KL |
878 | if (overwrite) |
879 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING); | |
880 | ||
1758af10 ACM |
881 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
882 | perf_top__mmap_read_idx(top, i); | |
ebebbf08 KL |
883 | |
884 | if (overwrite) { | |
885 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY); | |
886 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING); | |
887 | } | |
2f01190a FW |
888 | } |
889 | ||
63878a53 KL |
890 | /* |
891 | * Check per-event overwrite term. | |
892 | * perf top should support consistent term for all events. | |
893 | * - All events don't have per-event term | |
894 | * E.g. "cpu/cpu-cycles/,cpu/instructions/" | |
895 | * Nothing change, return 0. | |
896 | * - All events have same per-event term | |
897 | * E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/ | |
898 | * Using the per-event setting to replace the opts->overwrite if | |
899 | * they are different, then return 0. | |
900 | * - Events have different per-event term | |
901 | * E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/" | |
902 | * Return -1 | |
903 | * - Some of the event set per-event term, but some not. | |
904 | * E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/" | |
905 | * Return -1 | |
906 | */ | |
907 | static int perf_top__overwrite_check(struct perf_top *top) | |
908 | { | |
909 | struct record_opts *opts = &top->record_opts; | |
910 | struct perf_evlist *evlist = top->evlist; | |
911 | struct perf_evsel_config_term *term; | |
912 | struct list_head *config_terms; | |
913 | struct perf_evsel *evsel; | |
914 | int set, overwrite = -1; | |
915 | ||
916 | evlist__for_each_entry(evlist, evsel) { | |
917 | set = -1; | |
918 | config_terms = &evsel->config_terms; | |
919 | list_for_each_entry(term, config_terms, list) { | |
920 | if (term->type == PERF_EVSEL__CONFIG_TERM_OVERWRITE) | |
921 | set = term->val.overwrite ? 1 : 0; | |
922 | } | |
923 | ||
924 | /* no term for current and previous event (likely) */ | |
925 | if ((overwrite < 0) && (set < 0)) | |
926 | continue; | |
927 | ||
928 | /* has term for both current and previous event, compare */ | |
929 | if ((overwrite >= 0) && (set >= 0) && (overwrite != set)) | |
930 | return -1; | |
931 | ||
932 | /* no term for current event but has term for previous one */ | |
933 | if ((overwrite >= 0) && (set < 0)) | |
934 | return -1; | |
935 | ||
936 | /* has term for current event */ | |
937 | if ((overwrite < 0) && (set >= 0)) { | |
938 | /* if it's first event, set overwrite */ | |
939 | if (evsel == perf_evlist__first(evlist)) | |
940 | overwrite = set; | |
941 | else | |
942 | return -1; | |
943 | } | |
944 | } | |
945 | ||
946 | if ((overwrite >= 0) && (opts->overwrite != overwrite)) | |
947 | opts->overwrite = overwrite; | |
948 | ||
949 | return 0; | |
950 | } | |
951 | ||
204721d7 KL |
952 | static int perf_top_overwrite_fallback(struct perf_top *top, |
953 | struct perf_evsel *evsel) | |
954 | { | |
955 | struct record_opts *opts = &top->record_opts; | |
956 | struct perf_evlist *evlist = top->evlist; | |
957 | struct perf_evsel *counter; | |
958 | ||
959 | if (!opts->overwrite) | |
960 | return 0; | |
961 | ||
962 | /* only fall back when first event fails */ | |
963 | if (evsel != perf_evlist__first(evlist)) | |
964 | return 0; | |
965 | ||
966 | evlist__for_each_entry(evlist, counter) | |
967 | counter->attr.write_backward = false; | |
968 | opts->overwrite = false; | |
853745f5 | 969 | pr_debug2("fall back to non-overwrite mode\n"); |
204721d7 KL |
970 | return 1; |
971 | } | |
972 | ||
11859e82 | 973 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 974 | { |
d6195a6a | 975 | char msg[BUFSIZ]; |
6a4bb04c | 976 | struct perf_evsel *counter; |
1758af10 | 977 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 978 | struct record_opts *opts = &top->record_opts; |
727ab04e | 979 | |
63878a53 KL |
980 | if (perf_top__overwrite_check(top)) { |
981 | ui__error("perf top only support consistent per-event " | |
982 | "overwrite setting for all events\n"); | |
983 | goto out_err; | |
984 | } | |
985 | ||
e68ae9cf | 986 | perf_evlist__config(evlist, opts, &callchain_param); |
7e4ff9e3 | 987 | |
e5cadb93 | 988 | evlist__for_each_entry(evlist, counter) { |
72cb7013 | 989 | try_again: |
1758af10 | 990 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 991 | top->evlist->threads) < 0) { |
204721d7 KL |
992 | |
993 | /* | |
994 | * Specially handle overwrite fall back. | |
995 | * Because perf top is the only tool which has | |
996 | * overwrite mode by default, support | |
997 | * both overwrite and non-overwrite mode, and | |
998 | * require consistent mode for all events. | |
999 | * | |
1000 | * May move it to generic code with more tools | |
1001 | * have similar attribute. | |
1002 | */ | |
1003 | if (perf_missing_features.write_backward && | |
1004 | perf_top_overwrite_fallback(top, counter)) | |
1005 | goto try_again; | |
1006 | ||
56e52e85 | 1007 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
bb963e16 | 1008 | if (verbose > 0) |
c0a54341 | 1009 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
1010 | goto try_again; |
1011 | } | |
c286c419 | 1012 | |
56e52e85 ACM |
1013 | perf_evsel__open_strerror(counter, &opts->target, |
1014 | errno, msg, sizeof(msg)); | |
1015 | ui__error("%s\n", msg); | |
c286c419 | 1016 | goto out_err; |
d6d901c2 | 1017 | } |
716c69fe | 1018 | } |
70db7533 | 1019 | |
f74b9d3a | 1020 | if (perf_evlist__mmap(evlist, opts->mmap_pages) < 0) { |
3780f488 | 1021 | ui__error("Failed to mmap with %d (%s)\n", |
c8b5f2c9 | 1022 | errno, str_error_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
1023 | goto out_err; |
1024 | } | |
1025 | ||
11859e82 | 1026 | return 0; |
c286c419 ACM |
1027 | |
1028 | out_err: | |
11859e82 | 1029 | return -1; |
716c69fe IM |
1030 | } |
1031 | ||
e3815264 | 1032 | static int callchain_param__setup_sample_type(struct callchain_param *callchain) |
19d4ac3c | 1033 | { |
2e0453af | 1034 | if (!perf_hpp_list.sym) { |
e3815264 | 1035 | if (callchain->enabled) { |
3780f488 | 1036 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
1037 | return -EINVAL; |
1038 | } | |
e3815264 ACM |
1039 | } else if (callchain->mode != CHAIN_NONE) { |
1040 | if (callchain_register_param(callchain) < 0) { | |
3780f488 | 1041 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
1042 | return -EINVAL; |
1043 | } | |
1044 | } | |
1045 | ||
1046 | return 0; | |
1047 | } | |
1048 | ||
16c66bc1 JO |
1049 | static struct ordered_events *rotate_queues(struct perf_top *top) |
1050 | { | |
1051 | struct ordered_events *in = top->qe.in; | |
1052 | ||
1053 | if (top->qe.in == &top->qe.data[1]) | |
1054 | top->qe.in = &top->qe.data[0]; | |
1055 | else | |
1056 | top->qe.in = &top->qe.data[1]; | |
1057 | ||
1058 | return in; | |
1059 | } | |
1060 | ||
1061 | static void *process_thread(void *arg) | |
1062 | { | |
1063 | struct perf_top *top = arg; | |
1064 | ||
1065 | while (!done) { | |
1066 | struct ordered_events *out, *in = top->qe.in; | |
1067 | ||
1068 | if (!in->nr_events) { | |
1069 | usleep(100); | |
1070 | continue; | |
1071 | } | |
1072 | ||
16c66bc1 | 1073 | out = rotate_queues(top); |
94ad6e7e JO |
1074 | |
1075 | pthread_mutex_lock(&top->qe.mutex); | |
1076 | top->qe.rotate = true; | |
1077 | pthread_cond_wait(&top->qe.cond, &top->qe.mutex); | |
1078 | pthread_mutex_unlock(&top->qe.mutex); | |
16c66bc1 JO |
1079 | |
1080 | if (ordered_events__flush(out, OE_FLUSH__TOP)) | |
1081 | pr_err("failed to process events\n"); | |
1082 | } | |
1083 | ||
1084 | return NULL; | |
1085 | } | |
1086 | ||
1087 | static int deliver_event(struct ordered_events *qe, | |
1088 | struct ordered_event *qevent) | |
1089 | { | |
1090 | struct perf_top *top = qe->data; | |
1091 | struct perf_evlist *evlist = top->evlist; | |
1092 | struct perf_session *session = top->session; | |
1093 | union perf_event *event = qevent->event; | |
1094 | struct perf_sample sample; | |
1095 | struct perf_evsel *evsel; | |
1096 | struct machine *machine; | |
1097 | int ret = -1; | |
1098 | ||
1099 | ret = perf_evlist__parse_sample(evlist, event, &sample); | |
1100 | if (ret) { | |
1101 | pr_err("Can't parse sample, err = %d\n", ret); | |
1102 | goto next_event; | |
1103 | } | |
1104 | ||
1105 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); | |
1106 | assert(evsel != NULL); | |
1107 | ||
1108 | if (event->header.type == PERF_RECORD_SAMPLE) | |
1109 | ++top->samples; | |
1110 | ||
1111 | switch (sample.cpumode) { | |
1112 | case PERF_RECORD_MISC_USER: | |
1113 | ++top->us_samples; | |
1114 | if (top->hide_user_symbols) | |
1115 | goto next_event; | |
1116 | machine = &session->machines.host; | |
1117 | break; | |
1118 | case PERF_RECORD_MISC_KERNEL: | |
1119 | ++top->kernel_samples; | |
1120 | if (top->hide_kernel_symbols) | |
1121 | goto next_event; | |
1122 | machine = &session->machines.host; | |
1123 | break; | |
1124 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1125 | ++top->guest_kernel_samples; | |
1126 | machine = perf_session__find_machine(session, | |
1127 | sample.pid); | |
1128 | break; | |
1129 | case PERF_RECORD_MISC_GUEST_USER: | |
1130 | ++top->guest_us_samples; | |
1131 | /* | |
1132 | * TODO: we don't process guest user from host side | |
1133 | * except simple counting. | |
1134 | */ | |
1135 | goto next_event; | |
1136 | default: | |
1137 | if (event->header.type == PERF_RECORD_SAMPLE) | |
1138 | goto next_event; | |
1139 | machine = &session->machines.host; | |
1140 | break; | |
1141 | } | |
1142 | ||
1143 | if (event->header.type == PERF_RECORD_SAMPLE) { | |
1144 | perf_event__process_sample(&top->tool, event, evsel, | |
1145 | &sample, machine); | |
1146 | } else if (event->header.type == PERF_RECORD_LOST) { | |
1147 | perf_top__process_lost(top, event, evsel); | |
1148 | } else if (event->header.type == PERF_RECORD_LOST_SAMPLES) { | |
1149 | perf_top__process_lost_samples(top, event, evsel); | |
1150 | } else if (event->header.type < PERF_RECORD_MAX) { | |
1151 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); | |
1152 | machine__process_event(machine, event, &sample); | |
1153 | } else | |
1154 | ++session->evlist->stats.nr_unknown_events; | |
1155 | ||
1156 | ret = 0; | |
1157 | next_event: | |
1158 | return ret; | |
1159 | } | |
1160 | ||
1161 | static void init_process_thread(struct perf_top *top) | |
1162 | { | |
1163 | ordered_events__init(&top->qe.data[0], deliver_event, top); | |
1164 | ordered_events__init(&top->qe.data[1], deliver_event, top); | |
1165 | ordered_events__set_copy_on_queue(&top->qe.data[0], true); | |
1166 | ordered_events__set_copy_on_queue(&top->qe.data[1], true); | |
1167 | top->qe.in = &top->qe.data[0]; | |
94ad6e7e JO |
1168 | pthread_mutex_init(&top->qe.mutex, NULL); |
1169 | pthread_cond_init(&top->qe.cond, NULL); | |
16c66bc1 JO |
1170 | } |
1171 | ||
1758af10 | 1172 | static int __cmd_top(struct perf_top *top) |
716c69fe | 1173 | { |
5d8bb1ec MP |
1174 | char msg[512]; |
1175 | struct perf_evsel *pos; | |
1176 | struct perf_evsel_config_term *err_term; | |
1177 | struct perf_evlist *evlist = top->evlist; | |
b4006796 | 1178 | struct record_opts *opts = &top->record_opts; |
16c66bc1 | 1179 | pthread_t thread, thread_process; |
19d4ac3c | 1180 | int ret; |
f5fc1412 | 1181 | |
6a4d98d7 | 1182 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 1183 | if (top->session == NULL) |
52e02834 | 1184 | return -1; |
07800601 | 1185 | |
f178fd2d ACM |
1186 | if (!top->annotation_opts.objdump_path) { |
1187 | ret = perf_env__lookup_objdump(&top->session->header.env, | |
1188 | &top->annotation_opts.objdump_path); | |
0d3942db SB |
1189 | if (ret) |
1190 | goto out_delete; | |
1191 | } | |
1192 | ||
e3815264 | 1193 | ret = callchain_param__setup_sample_type(&callchain_param); |
19d4ac3c ACM |
1194 | if (ret) |
1195 | goto out_delete; | |
1196 | ||
9d8b172f | 1197 | if (perf_session__register_idle_thread(top->session) < 0) |
c53d138d NK |
1198 | goto out_delete; |
1199 | ||
0c6b4994 KL |
1200 | if (top->nr_threads_synthesize > 1) |
1201 | perf_set_multithreaded(); | |
340b47f5 | 1202 | |
16c66bc1 JO |
1203 | init_process_thread(top); |
1204 | ||
a33fbd56 | 1205 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
340b47f5 | 1206 | top->evlist->threads, false, |
0c6b4994 | 1207 | top->nr_threads_synthesize); |
340b47f5 | 1208 | |
0c6b4994 KL |
1209 | if (top->nr_threads_synthesize > 1) |
1210 | perf_set_singlethreaded(); | |
2e7ea3ab | 1211 | |
35a634f7 | 1212 | if (perf_hpp_list.socket) { |
2e7ea3ab KL |
1213 | ret = perf_env__read_cpu_topology_map(&perf_env); |
1214 | if (ret < 0) | |
1215 | goto out_err_cpu_topo; | |
1216 | } | |
1217 | ||
11859e82 ACM |
1218 | ret = perf_top__start_counters(top); |
1219 | if (ret) | |
1220 | goto out_delete; | |
1221 | ||
5d8bb1ec MP |
1222 | ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term); |
1223 | if (ret) { | |
62d94b00 | 1224 | pr_err("failed to set config \"%s\" on event %s with %d (%s)\n", |
5d8bb1ec MP |
1225 | err_term->val.drv_cfg, perf_evsel__name(pos), errno, |
1226 | str_error_r(errno, msg, sizeof(msg))); | |
1227 | goto out_delete; | |
1228 | } | |
1229 | ||
1758af10 | 1230 | top->session->evlist = top->evlist; |
7b56cce2 | 1231 | perf_session__set_id_hdr_size(top->session); |
07800601 | 1232 | |
2376c67a ACM |
1233 | /* |
1234 | * When perf is starting the traced process, all the events (apart from | |
1235 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
1236 | * prematurely enabling them. | |
1237 | * | |
1238 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
1239 | * so leave the check here. | |
1240 | */ | |
602ad878 | 1241 | if (!target__none(&opts->target)) |
2376c67a ACM |
1242 | perf_evlist__enable(top->evlist); |
1243 | ||
11859e82 | 1244 | ret = -1; |
16c66bc1 JO |
1245 | if (pthread_create(&thread_process, NULL, process_thread, top)) { |
1246 | ui__error("Could not create process thread.\n"); | |
1247 | goto out_delete; | |
1248 | } | |
1249 | ||
c0443df1 | 1250 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 1251 | display_thread), top)) { |
3780f488 | 1252 | ui__error("Could not create display thread.\n"); |
16c66bc1 | 1253 | goto out_join_thread; |
07800601 IM |
1254 | } |
1255 | ||
1758af10 | 1256 | if (top->realtime_prio) { |
07800601 IM |
1257 | struct sched_param param; |
1258 | ||
1758af10 | 1259 | param.sched_priority = top->realtime_prio; |
07800601 | 1260 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 1261 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 1262 | goto out_join; |
07800601 IM |
1263 | } |
1264 | } | |
1265 | ||
ff27a06a DM |
1266 | /* Wait for a minimal set of events before starting the snapshot */ |
1267 | perf_evlist__poll(top->evlist, 100); | |
1268 | ||
1269 | perf_top__mmap_read(top); | |
1270 | ||
11859e82 | 1271 | while (!done) { |
1758af10 | 1272 | u64 hits = top->samples; |
07800601 | 1273 | |
1758af10 | 1274 | perf_top__mmap_read(top); |
07800601 | 1275 | |
ebebbf08 | 1276 | if (opts->overwrite || (hits == top->samples)) |
f66a889d | 1277 | ret = perf_evlist__poll(top->evlist, 100); |
b135e5ee JO |
1278 | |
1279 | if (resize) { | |
1280 | perf_top__resize(top); | |
1281 | resize = 0; | |
1282 | } | |
07800601 IM |
1283 | } |
1284 | ||
11859e82 | 1285 | ret = 0; |
ae256fa2 JO |
1286 | out_join: |
1287 | pthread_join(thread, NULL); | |
16c66bc1 | 1288 | out_join_thread: |
94ad6e7e | 1289 | pthread_cond_signal(&top->qe.cond); |
16c66bc1 | 1290 | pthread_join(thread_process, NULL); |
19d4ac3c | 1291 | out_delete: |
1758af10 ACM |
1292 | perf_session__delete(top->session); |
1293 | top->session = NULL; | |
19d4ac3c | 1294 | |
11859e82 | 1295 | return ret; |
2e7ea3ab KL |
1296 | |
1297 | out_err_cpu_topo: { | |
1298 | char errbuf[BUFSIZ]; | |
c8b5f2c9 | 1299 | const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); |
2e7ea3ab KL |
1300 | |
1301 | ui__error("Could not read the CPU topology map: %s\n", err); | |
1302 | goto out_delete; | |
1303 | } | |
19d4ac3c ACM |
1304 | } |
1305 | ||
1306 | static int | |
ae779a63 | 1307 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1308 | { |
19d4ac3c | 1309 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1310 | return record_callchain_opt(opt, arg, unset); |
1311 | } | |
19d4ac3c | 1312 | |
ae779a63 JO |
1313 | static int |
1314 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1315 | { | |
2ddd5c04 | 1316 | struct callchain_param *callchain = opt->value; |
a2c10d39 | 1317 | |
2ddd5c04 ACM |
1318 | callchain->enabled = !unset; |
1319 | callchain->record_mode = CALLCHAIN_FP; | |
a2c10d39 NK |
1320 | |
1321 | /* | |
1322 | * --no-call-graph | |
1323 | */ | |
1324 | if (unset) { | |
1325 | symbol_conf.use_callchain = false; | |
2ddd5c04 | 1326 | callchain->record_mode = CALLCHAIN_NONE; |
a2c10d39 NK |
1327 | return 0; |
1328 | } | |
1329 | ||
1330 | return parse_callchain_top_opt(arg); | |
07800601 | 1331 | } |
b456bae0 | 1332 | |
b8cbb349 | 1333 | static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) |
eb853e80 | 1334 | { |
a3a4a3b3 YX |
1335 | if (!strcmp(var, "top.call-graph")) { |
1336 | var = "call-graph.record-mode"; | |
1337 | return perf_default_config(var, value, cb); | |
1338 | } | |
104ac991 NK |
1339 | if (!strcmp(var, "top.children")) { |
1340 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1341 | return 0; | |
1342 | } | |
eb853e80 | 1343 | |
b8cbb349 | 1344 | return 0; |
eb853e80 JO |
1345 | } |
1346 | ||
fa5df943 NK |
1347 | static int |
1348 | parse_percent_limit(const struct option *opt, const char *arg, | |
1349 | int unset __maybe_unused) | |
1350 | { | |
1351 | struct perf_top *top = opt->value; | |
1352 | ||
1353 | top->min_percent = strtof(arg, NULL); | |
1354 | return 0; | |
1355 | } | |
1356 | ||
76a26549 NK |
1357 | const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP |
1358 | "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; | |
a2c10d39 | 1359 | |
b0ad8ea6 | 1360 | int cmd_top(int argc, const char **argv) |
1758af10 | 1361 | { |
16ad2ffb | 1362 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1363 | struct perf_top top = { |
1364 | .count_filter = 5, | |
1365 | .delay_secs = 2, | |
2376c67a ACM |
1366 | .record_opts = { |
1367 | .mmap_pages = UINT_MAX, | |
1368 | .user_freq = UINT_MAX, | |
1369 | .user_interval = ULLONG_MAX, | |
1370 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1371 | .target = { |
2376c67a ACM |
1372 | .uses_mmap = true, |
1373 | }, | |
218d6111 ACM |
1374 | /* |
1375 | * FIXME: This will lose PERF_RECORD_MMAP and other metadata | |
1376 | * when we pause, fix that and reenable. Probably using a | |
1377 | * separate evlist with a dummy event, i.e. a non-overwrite | |
1378 | * ring buffer just for metadata events, while PERF_RECORD_SAMPLE | |
1379 | * stays in overwrite mode. -acme | |
1380 | * */ | |
1381 | .overwrite = 0, | |
16c66bc1 | 1382 | .sample_time = true, |
d1cb9fce | 1383 | }, |
029c75e5 | 1384 | .max_stack = sysctl__max_stack(), |
982d410b | 1385 | .annotation_opts = annotation__default_options, |
0c6b4994 | 1386 | .nr_threads_synthesize = UINT_MAX, |
1758af10 | 1387 | }; |
b4006796 | 1388 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1389 | struct target *target = &opts->target; |
1758af10 | 1390 | const struct option options[] = { |
8c3e10eb | 1391 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1392 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1393 | parse_events_option), |
2376c67a ACM |
1394 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1395 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1396 | "profile events on existing process id"), |
2376c67a | 1397 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1398 | "profile events on existing thread id"), |
2376c67a | 1399 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1400 | "system-wide collection from all CPUs"), |
2376c67a | 1401 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1402 | "list of cpus to monitor"), |
b32d133a ACM |
1403 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1404 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1405 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1406 | "don't load vmlinux even if found"), | |
1b3aae90 ACM |
1407 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
1408 | "file", "kallsyms pathname"), | |
8c3e10eb | 1409 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1410 | "hide kernel symbols"), |
994a1f78 JO |
1411 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1412 | "number of mmap data pages", | |
1413 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1414 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1415 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1416 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1417 | "number of seconds to delay between refreshes"), |
1758af10 | 1418 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1419 | "dump the symbol table used for profiling"), |
8c3e10eb | 1420 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1421 | "only display functions with more events than this"), |
bf80669e | 1422 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1423 | "put the counters into a counter group"), |
2376c67a ACM |
1424 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1425 | "child tasks do not inherit counters"), | |
1758af10 | 1426 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1427 | "symbol to annotate"), |
2376c67a | 1428 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
7831bf23 ACM |
1429 | OPT_CALLBACK('F', "freq", &top.record_opts, "freq or 'max'", |
1430 | "profile at this frequency", | |
1431 | record__parse_freq), | |
8c3e10eb | 1432 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1433 | "display this many functions"), |
8c3e10eb | 1434 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1435 | "hide user symbols"), |
1758af10 ACM |
1436 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1437 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1438 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1439 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1440 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1441 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1442 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1443 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1444 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1445 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1446 | "Show a column with the number of samples"), | |
2ddd5c04 | 1447 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
a2c10d39 | 1448 | NULL, "enables call-graph recording and display", |
ae779a63 | 1449 | &callchain_opt), |
2ddd5c04 | 1450 | OPT_CALLBACK(0, "call-graph", &callchain_param, |
76a26549 | 1451 | "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", |
a2c10d39 | 1452 | top_callchain_help, &parse_callchain_opt), |
1432ec34 NK |
1453 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1454 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1455 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1456 | "Set the maximum stack depth when parsing the callchain. " | |
4cb93446 | 1457 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
b21484f1 GP |
1458 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1459 | "ignore callees of these functions in call graphs", | |
1460 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1461 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1462 | "Show a column with the sum of periods"), | |
1463 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1464 | "only consider symbols in these dsos"), | |
1465 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1466 | "only consider symbols in these comms"), | |
1467 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1468 | "only consider these symbols"), | |
1eddd9e4 | 1469 | OPT_BOOLEAN(0, "source", &top.annotation_opts.annotate_src, |
64c6f0c7 | 1470 | "Interleave source code with assembly code (default)"), |
1eddd9e4 | 1471 | OPT_BOOLEAN(0, "asm-raw", &top.annotation_opts.show_asm_raw, |
64c6f0c7 | 1472 | "Display raw encoding of assembly instructions (default)"), |
763122ad AK |
1473 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1474 | "Enable kernel symbol demangling"), | |
f178fd2d | 1475 | OPT_STRING(0, "objdump", &top.annotation_opts.objdump_path, "path", |
0d3942db | 1476 | "objdump binary to use for disassembly and annotations"), |
a47e843e | 1477 | OPT_STRING('M', "disassembler-style", &top.annotation_opts.disassembler_style, "disassembler style", |
64c6f0c7 | 1478 | "Specify disassembler style (e.g. -M intel for intel syntax)"), |
2376c67a | 1479 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1480 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1481 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1482 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1483 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1484 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1485 | "width[,width...]", | |
1486 | "don't try to adjust column width, use these fixed values"), | |
3fcb10e4 | 1487 | OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, |
9d9cad76 | 1488 | "per thread proc mmap processing timeout in ms"), |
a18b027e AK |
1489 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1490 | "branch any", "sample any taken branches", | |
1491 | parse_branch_stack), | |
1492 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1493 | "branch filter mask", "branch stack filter modes", | |
1494 | parse_branch_stack), | |
053a3989 NK |
1495 | OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
1496 | "Show raw trace event output (do not use print fmt or plugins)"), | |
c92fcfde NK |
1497 | OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
1498 | "Show entries in a hierarchy"), | |
4e303fbe | 1499 | OPT_BOOLEAN(0, "overwrite", &top.record_opts.overwrite, |
218d6111 | 1500 | "Use a backward ring buffer, default: no"), |
868a8329 | 1501 | OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), |
0c6b4994 KL |
1502 | OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, |
1503 | "number of thread to run event synthesize"), | |
b456bae0 | 1504 | OPT_END() |
1758af10 | 1505 | }; |
be772842 ACM |
1506 | const char * const top_usage[] = { |
1507 | "perf top [<options>]", | |
1508 | NULL | |
1509 | }; | |
a635fc51 ACM |
1510 | int status = hists__init(); |
1511 | ||
1512 | if (status < 0) | |
1513 | return status; | |
b456bae0 | 1514 | |
982d410b ACM |
1515 | top.annotation_opts.min_pcnt = 5; |
1516 | top.annotation_opts.context = 4; | |
1517 | ||
334fe7a3 | 1518 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1519 | if (top.evlist == NULL) |
361c99a6 ACM |
1520 | return -ENOMEM; |
1521 | ||
ecc4c561 ACM |
1522 | status = perf_config(perf_top_config, &top); |
1523 | if (status) | |
1524 | return status; | |
eb853e80 | 1525 | |
b456bae0 IM |
1526 | argc = parse_options(argc, argv, options, top_usage, 0); |
1527 | if (argc) | |
1528 | usage_with_options(top_usage, options); | |
1529 | ||
54f8f403 NK |
1530 | if (!top.evlist->nr_entries && |
1531 | perf_evlist__add_default(top.evlist) < 0) { | |
1532 | pr_err("Not enough memory for event selector list\n"); | |
1533 | goto out_delete_evlist; | |
1534 | } | |
1535 | ||
c92fcfde NK |
1536 | if (symbol_conf.report_hierarchy) { |
1537 | /* disable incompatible options */ | |
1538 | symbol_conf.event_group = false; | |
1539 | symbol_conf.cumulate_callchain = false; | |
1540 | ||
1541 | if (field_order) { | |
1542 | pr_err("Error: --hierarchy and --fields options cannot be used together\n"); | |
1543 | parse_options_usage(top_usage, options, "fields", 0); | |
1544 | parse_options_usage(NULL, options, "hierarchy", 0); | |
1545 | goto out_delete_evlist; | |
1546 | } | |
1547 | } | |
1548 | ||
590ac60d JY |
1549 | if (opts->branch_stack && callchain_param.enabled) |
1550 | symbol_conf.show_branchflag_count = true; | |
1551 | ||
512ae1bd | 1552 | sort__mode = SORT_MODE__TOP; |
6fe8c26d | 1553 | /* display thread wants entries to be collapsed in a different tree */ |
52225036 | 1554 | perf_hpp_list.need_collapse = 1; |
ab81f3fd | 1555 | |
3ee60c3b ACM |
1556 | if (top.use_stdio) |
1557 | use_browser = 0; | |
1558 | else if (top.use_tui) | |
1559 | use_browser = 1; | |
1560 | ||
1561 | setup_browser(false); | |
1562 | ||
40184c46 | 1563 | if (setup_sorting(top.evlist) < 0) { |
6fe8c26d NK |
1564 | if (sort_order) |
1565 | parse_options_usage(top_usage, options, "s", 1); | |
1566 | if (field_order) | |
1567 | parse_options_usage(sort_order ? NULL : top_usage, | |
1568 | options, "fields", 0); | |
d37a92dc NK |
1569 | goto out_delete_evlist; |
1570 | } | |
ab81f3fd | 1571 | |
602ad878 | 1572 | status = target__validate(target); |
16ad2ffb | 1573 | if (status) { |
602ad878 | 1574 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1575 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1576 | } |
1577 | ||
602ad878 | 1578 | status = target__parse_uid(target); |
16ad2ffb NK |
1579 | if (status) { |
1580 | int saved_errno = errno; | |
4bd0f2d2 | 1581 | |
602ad878 | 1582 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1583 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1584 | |
1585 | status = -saved_errno; | |
0d37aa34 | 1586 | goto out_delete_evlist; |
16ad2ffb | 1587 | } |
0d37aa34 | 1588 | |
602ad878 | 1589 | if (target__none(target)) |
2376c67a | 1590 | target->system_wide = true; |
10b47d54 | 1591 | |
f8a5c0b2 ACM |
1592 | if (perf_evlist__create_maps(top.evlist, target) < 0) { |
1593 | ui__error("Couldn't create thread/CPU maps: %s\n", | |
c8b5f2c9 | 1594 | errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); |
f8a5c0b2 | 1595 | goto out_delete_evlist; |
69aad6f1 | 1596 | } |
5a8e5a30 | 1597 | |
8c3e10eb ACM |
1598 | if (top.delay_secs < 1) |
1599 | top.delay_secs = 1; | |
2f335a02 | 1600 | |
b4006796 | 1601 | if (record_opts__config(opts)) { |
2376c67a | 1602 | status = -EINVAL; |
03ad9747 | 1603 | goto out_delete_evlist; |
69aad6f1 ACM |
1604 | } |
1605 | ||
0c21f736 | 1606 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1607 | |
e3815264 | 1608 | if (!callchain_param.enabled) { |
1432ec34 NK |
1609 | symbol_conf.cumulate_callchain = false; |
1610 | perf_hpp__cancel_cumulate(); | |
1611 | } | |
1612 | ||
792aeafa NK |
1613 | if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
1614 | callchain_param.order = ORDER_CALLER; | |
1615 | ||
b01141f4 ACM |
1616 | status = symbol__annotation_init(); |
1617 | if (status < 0) | |
1618 | goto out_delete_evlist; | |
69aad6f1 | 1619 | |
7f0b6fde ACM |
1620 | annotation_config__init(); |
1621 | ||
69aad6f1 | 1622 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); |
0a7e6d1b | 1623 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1624 | return -1; |
1625 | ||
08e71542 | 1626 | sort__setup_elide(stdout); |
ab81f3fd | 1627 | |
1758af10 | 1628 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1629 | if (top.print_entries == 0) { |
1758af10 | 1630 | perf_top__update_print_entries(&top); |
244a1086 | 1631 | signal(SIGWINCH, winch_sig); |
3b6ed988 ACM |
1632 | } |
1633 | ||
1758af10 | 1634 | status = __cmd_top(&top); |
806fb630 | 1635 | |
0d37aa34 | 1636 | out_delete_evlist: |
8c3e10eb | 1637 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1638 | |
1639 | return status; | |
b456bae0 | 1640 | } |