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Commit | Line | Data |
---|---|---|
07800601 | 1 | /* |
bf9e1876 IM |
2 | * builtin-top.c |
3 | * | |
4 | * Builtin top command: Display a continuously updated profile of | |
5 | * any workload, CPU or specific PID. | |
6 | * | |
7 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> | |
ab81f3fd | 8 | * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> |
bf9e1876 IM |
9 | * |
10 | * Improvements and fixes by: | |
11 | * | |
12 | * Arjan van de Ven <arjan@linux.intel.com> | |
13 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
14 | * Wu Fengguang <fengguang.wu@intel.com> | |
15 | * Mike Galbraith <efault@gmx.de> | |
16 | * Paul Mackerras <paulus@samba.org> | |
17 | * | |
18 | * Released under the GPL v2. (and only v2, not any later version) | |
07800601 | 19 | */ |
bf9e1876 | 20 | #include "builtin.h" |
07800601 | 21 | |
1a482f38 | 22 | #include "perf.h" |
bf9e1876 | 23 | |
36532461 | 24 | #include "util/annotate.h" |
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 | |
1a105f74 | 276 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 277 | |
a1ff5b05 KL |
278 | if (!top->record_opts.overwrite && |
279 | (hists->stats.nr_lost_warned != | |
280 | hists->stats.nr_events[PERF_RECORD_LOST])) { | |
4ea062ed ACM |
281 | hists->stats.nr_lost_warned = |
282 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
283 | color_fprintf(stdout, PERF_COLOR_RED, |
284 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 285 | hists->stats.nr_lost_warned); |
ab81f3fd | 286 | ++printed; |
93fc64f1 ACM |
287 | } |
288 | ||
1758af10 ACM |
289 | if (top->sym_filter_entry) { |
290 | perf_top__show_details(top); | |
923c42c1 MG |
291 | return; |
292 | } | |
293 | ||
5d484f99 ACM |
294 | if (top->evlist->enabled) { |
295 | if (top->zero) { | |
296 | hists__delete_entries(hists); | |
297 | } else { | |
298 | hists__decay_entries(hists, top->hide_user_symbols, | |
299 | top->hide_kernel_symbols); | |
300 | } | |
701937bd NK |
301 | } |
302 | ||
4ea062ed | 303 | hists__collapse_resort(hists, NULL); |
452ce03b | 304 | perf_evsel__output_resort(evsel, NULL); |
701937bd | 305 | |
4ea062ed | 306 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 307 | putchar('\n'); |
4ea062ed | 308 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
e9de7e2f | 309 | top->min_percent, stdout, !symbol_conf.use_callchain); |
07800601 IM |
310 | } |
311 | ||
923c42c1 MG |
312 | static void prompt_integer(int *target, const char *msg) |
313 | { | |
314 | char *buf = malloc(0), *p; | |
315 | size_t dummy = 0; | |
316 | int tmp; | |
317 | ||
318 | fprintf(stdout, "\n%s: ", msg); | |
319 | if (getline(&buf, &dummy, stdin) < 0) | |
320 | return; | |
321 | ||
322 | p = strchr(buf, '\n'); | |
323 | if (p) | |
324 | *p = 0; | |
325 | ||
326 | p = buf; | |
327 | while(*p) { | |
328 | if (!isdigit(*p)) | |
329 | goto out_free; | |
330 | p++; | |
331 | } | |
332 | tmp = strtoul(buf, NULL, 10); | |
333 | *target = tmp; | |
334 | out_free: | |
335 | free(buf); | |
336 | } | |
337 | ||
338 | static void prompt_percent(int *target, const char *msg) | |
339 | { | |
340 | int tmp = 0; | |
341 | ||
342 | prompt_integer(&tmp, msg); | |
343 | if (tmp >= 0 && tmp <= 100) | |
344 | *target = tmp; | |
345 | } | |
346 | ||
1758af10 | 347 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
348 | { |
349 | char *buf = malloc(0), *p; | |
1758af10 | 350 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 351 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 352 | struct rb_node *next; |
923c42c1 MG |
353 | size_t dummy = 0; |
354 | ||
355 | /* zero counters of active symbol */ | |
356 | if (syme) { | |
923c42c1 | 357 | __zero_source_counters(syme); |
1758af10 | 358 | top->sym_filter_entry = NULL; |
923c42c1 MG |
359 | } |
360 | ||
361 | fprintf(stdout, "\n%s: ", msg); | |
362 | if (getline(&buf, &dummy, stdin) < 0) | |
363 | goto out_free; | |
364 | ||
365 | p = strchr(buf, '\n'); | |
366 | if (p) | |
367 | *p = 0; | |
368 | ||
4ea062ed | 369 | next = rb_first(&hists->entries); |
ab81f3fd ACM |
370 | while (next) { |
371 | n = rb_entry(next, struct hist_entry, rb_node); | |
372 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
373 | found = n; | |
923c42c1 MG |
374 | break; |
375 | } | |
ab81f3fd | 376 | next = rb_next(&n->rb_node); |
923c42c1 MG |
377 | } |
378 | ||
379 | if (!found) { | |
66aeb6d5 | 380 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 381 | sleep(1); |
923c42c1 | 382 | } else |
1758af10 | 383 | perf_top__parse_source(top, found); |
923c42c1 MG |
384 | |
385 | out_free: | |
386 | free(buf); | |
387 | } | |
388 | ||
1758af10 | 389 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 390 | { |
091bd2e9 MG |
391 | char *name = NULL; |
392 | ||
1758af10 ACM |
393 | if (top->sym_filter_entry) { |
394 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
395 | name = sym->name; |
396 | } | |
397 | ||
398 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
399 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
400 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 401 | |
1758af10 | 402 | if (top->evlist->nr_entries > 1) |
7289f83c | 403 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 404 | |
1758af10 | 405 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 406 | |
982d410b | 407 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->annotation_opts.min_pcnt); |
6cff0e8d KS |
408 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
409 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 410 | |
8ffcda17 | 411 | fprintf(stdout, |
8fce3743 | 412 | "\t[K] hide kernel symbols. \t(%s)\n", |
1758af10 | 413 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
414 | fprintf(stdout, |
415 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
416 | top->hide_user_symbols ? "yes" : "no"); |
417 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
418 | fprintf(stdout, "\t[qQ] quit.\n"); |
419 | } | |
420 | ||
1758af10 | 421 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
422 | { |
423 | switch (c) { | |
424 | case 'd': | |
425 | case 'e': | |
426 | case 'f': | |
427 | case 'z': | |
428 | case 'q': | |
429 | case 'Q': | |
8ffcda17 ACM |
430 | case 'K': |
431 | case 'U': | |
6cff0e8d KS |
432 | case 'F': |
433 | case 's': | |
434 | case 'S': | |
091bd2e9 MG |
435 | return 1; |
436 | case 'E': | |
1758af10 | 437 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
438 | default: |
439 | break; | |
091bd2e9 MG |
440 | } |
441 | ||
442 | return 0; | |
923c42c1 MG |
443 | } |
444 | ||
11859e82 | 445 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 446 | { |
11859e82 ACM |
447 | bool ret = true; |
448 | ||
1758af10 | 449 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 450 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 451 | struct termios save; |
091bd2e9 | 452 | |
1758af10 | 453 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
454 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
455 | fflush(stdout); | |
456 | ||
3969cc09 | 457 | set_term_quiet_input(&save); |
091bd2e9 MG |
458 | |
459 | poll(&stdin_poll, 1, -1); | |
460 | c = getc(stdin); | |
461 | ||
462 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 463 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 464 | return ret; |
091bd2e9 MG |
465 | } |
466 | ||
923c42c1 MG |
467 | switch (c) { |
468 | case 'd': | |
1758af10 ACM |
469 | prompt_integer(&top->delay_secs, "Enter display delay"); |
470 | if (top->delay_secs < 1) | |
471 | top->delay_secs = 1; | |
923c42c1 MG |
472 | break; |
473 | case 'e': | |
1758af10 ACM |
474 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
475 | if (top->print_entries == 0) { | |
b135e5ee | 476 | perf_top__resize(top); |
244a1086 | 477 | signal(SIGWINCH, winch_sig); |
509605db | 478 | } else { |
3b6ed988 | 479 | signal(SIGWINCH, SIG_DFL); |
509605db | 480 | } |
923c42c1 MG |
481 | break; |
482 | case 'E': | |
1758af10 | 483 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
484 | /* Select 0 as the default event: */ |
485 | int counter = 0; | |
486 | ||
923c42c1 | 487 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 488 | |
e5cadb93 | 489 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
7289f83c | 490 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 491 | |
ec52d976 | 492 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 493 | |
1758af10 | 494 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 495 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 496 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 497 | sleep(1); |
69aad6f1 | 498 | break; |
923c42c1 | 499 | } |
e5cadb93 | 500 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
1758af10 | 501 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 502 | break; |
ec52d976 | 503 | } else |
0c21f736 | 504 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
505 | break; |
506 | case 'f': | |
1758af10 | 507 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
508 | break; |
509 | case 'F': | |
982d410b | 510 | prompt_percent(&top->annotation_opts.min_pcnt, |
1758af10 | 511 | "Enter details display event filter (percent)"); |
923c42c1 | 512 | break; |
8ffcda17 | 513 | case 'K': |
1758af10 | 514 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 515 | break; |
923c42c1 MG |
516 | case 'q': |
517 | case 'Q': | |
518 | printf("exiting.\n"); | |
1758af10 ACM |
519 | if (top->dump_symtab) |
520 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
521 | ret = false; |
522 | break; | |
923c42c1 | 523 | case 's': |
1758af10 | 524 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
525 | break; |
526 | case 'S': | |
1758af10 | 527 | if (!top->sym_filter_entry) |
923c42c1 MG |
528 | break; |
529 | else { | |
1758af10 | 530 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 531 | |
1758af10 | 532 | top->sym_filter_entry = NULL; |
923c42c1 | 533 | __zero_source_counters(syme); |
923c42c1 MG |
534 | } |
535 | break; | |
8ffcda17 | 536 | case 'U': |
1758af10 | 537 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 538 | break; |
923c42c1 | 539 | case 'z': |
1758af10 | 540 | top->zero = !top->zero; |
923c42c1 | 541 | break; |
83a0944f IM |
542 | default: |
543 | break; | |
923c42c1 | 544 | } |
11859e82 ACM |
545 | |
546 | return ret; | |
923c42c1 MG |
547 | } |
548 | ||
ab81f3fd ACM |
549 | static void perf_top__sort_new_samples(void *arg) |
550 | { | |
551 | struct perf_top *t = arg; | |
452ce03b | 552 | struct perf_evsel *evsel = t->sym_evsel; |
4ea062ed ACM |
553 | struct hists *hists; |
554 | ||
ab81f3fd ACM |
555 | if (t->evlist->selected != NULL) |
556 | t->sym_evsel = t->evlist->selected; | |
557 | ||
452ce03b | 558 | hists = evsel__hists(evsel); |
4ea062ed | 559 | |
5d484f99 ACM |
560 | if (t->evlist->enabled) { |
561 | if (t->zero) { | |
562 | hists__delete_entries(hists); | |
563 | } else { | |
564 | hists__decay_entries(hists, t->hide_user_symbols, | |
565 | t->hide_kernel_symbols); | |
566 | } | |
701937bd NK |
567 | } |
568 | ||
4ea062ed | 569 | hists__collapse_resort(hists, NULL); |
452ce03b | 570 | perf_evsel__output_resort(evsel, NULL); |
254de74c | 571 | |
d8590430 | 572 | if (t->lost || t->drop) |
254de74c | 573 | pr_warning("Too slow to read ring buffer (change period (-c/-F) or limit CPUs (-C)\n"); |
ab81f3fd ACM |
574 | } |
575 | ||
c94cef4b JO |
576 | static void stop_top(void) |
577 | { | |
578 | session_done = 1; | |
579 | done = 1; | |
580 | } | |
581 | ||
1758af10 | 582 | static void *display_thread_tui(void *arg) |
c0443df1 | 583 | { |
0d37aa34 | 584 | struct perf_evsel *pos; |
1758af10 | 585 | struct perf_top *top = arg; |
ab81f3fd | 586 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
587 | struct hist_browser_timer hbt = { |
588 | .timer = perf_top__sort_new_samples, | |
589 | .arg = top, | |
590 | .refresh = top->delay_secs, | |
591 | }; | |
ab81f3fd | 592 | |
868a8329 KJ |
593 | /* In order to read symbols from other namespaces perf to needs to call |
594 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
595 | * unshare(2) the fs so that we may continue to setns into namespaces | |
596 | * that we're observing. | |
597 | */ | |
598 | unshare(CLONE_FS); | |
599 | ||
1758af10 | 600 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
601 | |
602 | /* | |
603 | * Initialize the uid_filter_str, in the future the TUI will allow | |
adba1634 | 604 | * Zooming in/out UIDs. For now just use whatever the user passed |
0d37aa34 ACM |
605 | * via --uid. |
606 | */ | |
e5cadb93 | 607 | evlist__for_each_entry(top->evlist, pos) { |
4ea062ed ACM |
608 | struct hists *hists = evsel__hists(pos); |
609 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
610 | } | |
0d37aa34 | 611 | |
13d1e536 NK |
612 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
613 | top->min_percent, | |
a1ff5b05 | 614 | &top->session->header.env, |
cd0cccba ACM |
615 | !top->record_opts.overwrite, |
616 | &top->annotation_opts); | |
ab81f3fd | 617 | |
c94cef4b | 618 | stop_top(); |
c0443df1 ACM |
619 | return NULL; |
620 | } | |
621 | ||
4a1a9971 JO |
622 | static void display_sig(int sig __maybe_unused) |
623 | { | |
c94cef4b | 624 | stop_top(); |
4a1a9971 JO |
625 | } |
626 | ||
627 | static void display_setup_sig(void) | |
628 | { | |
09f4d78a ACM |
629 | signal(SIGSEGV, sighandler_dump_stack); |
630 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
631 | signal(SIGINT, display_sig); |
632 | signal(SIGQUIT, display_sig); | |
633 | signal(SIGTERM, display_sig); | |
634 | } | |
635 | ||
1758af10 | 636 | static void *display_thread(void *arg) |
07800601 | 637 | { |
0f5486b5 | 638 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 639 | struct termios save; |
1758af10 | 640 | struct perf_top *top = arg; |
923c42c1 MG |
641 | int delay_msecs, c; |
642 | ||
868a8329 KJ |
643 | /* In order to read symbols from other namespaces perf to needs to call |
644 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
645 | * unshare(2) the fs so that we may continue to setns into namespaces | |
646 | * that we're observing. | |
647 | */ | |
648 | unshare(CLONE_FS); | |
649 | ||
4a1a9971 | 650 | display_setup_sig(); |
3af6e338 | 651 | pthread__unblock_sigwinch(); |
923c42c1 | 652 | repeat: |
b9c4b0f4 | 653 | delay_msecs = top->delay_secs * MSEC_PER_SEC; |
9398c484 | 654 | set_term_quiet_input(&save); |
923c42c1 MG |
655 | /* trash return*/ |
656 | getc(stdin); | |
07800601 | 657 | |
11859e82 | 658 | while (!done) { |
1758af10 | 659 | perf_top__print_sym_table(top); |
3af6e338 ACM |
660 | /* |
661 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
662 | * refresh screen in both cases. | |
663 | */ | |
664 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
665 | case 0: | |
666 | continue; | |
667 | case -1: | |
668 | if (errno == EINTR) | |
669 | continue; | |
7b0214b7 | 670 | __fallthrough; |
3af6e338 | 671 | default: |
11859e82 ACM |
672 | c = getc(stdin); |
673 | tcsetattr(0, TCSAFLUSH, &save); | |
674 | ||
675 | if (perf_top__handle_keypress(top, c)) | |
676 | goto repeat; | |
c94cef4b | 677 | stop_top(); |
3af6e338 ACM |
678 | } |
679 | } | |
07800601 | 680 | |
4a1a9971 | 681 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
682 | return NULL; |
683 | } | |
684 | ||
7c50391f NK |
685 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
686 | struct addr_location *al, bool single, | |
687 | void *arg) | |
688 | { | |
689 | struct perf_top *top = arg; | |
690 | struct hist_entry *he = iter->he; | |
691 | struct perf_evsel *evsel = iter->evsel; | |
692 | ||
2e0453af | 693 | if (perf_hpp_list.sym && single) |
e345f3bd | 694 | perf_top__record_precise_ip(top, he, iter->sample, evsel, al->addr); |
7c50391f | 695 | |
a18b027e AK |
696 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
697 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
698 | return 0; |
699 | } | |
700 | ||
1758af10 ACM |
701 | static void perf_event__process_sample(struct perf_tool *tool, |
702 | const union perf_event *event, | |
7b27509f | 703 | struct perf_evsel *evsel, |
8115d60c | 704 | struct perf_sample *sample, |
743eb868 | 705 | struct machine *machine) |
07800601 | 706 | { |
1758af10 | 707 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 708 | struct addr_location al; |
19d4ac3c | 709 | int err; |
5b2bb75a | 710 | |
23346f21 | 711 | if (!machine && perf_guest) { |
6b118e92 DA |
712 | static struct intlist *seen; |
713 | ||
714 | if (!seen) | |
ffe0fb76 | 715 | seen = intlist__new(NULL); |
6b118e92 | 716 | |
ef89325f | 717 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 718 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
719 | sample->pid); |
720 | intlist__add(seen, sample->pid); | |
6b118e92 | 721 | } |
a1645ce1 ZY |
722 | return; |
723 | } | |
724 | ||
0c095715 | 725 | if (!machine) { |
11859e82 | 726 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 727 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
728 | return; |
729 | } | |
730 | ||
8115d60c | 731 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 732 | top->exact_samples++; |
1676b8a0 | 733 | |
bb3eb566 | 734 | if (machine__resolve(machine, &al, sample) < 0) |
1ed091c4 | 735 | return; |
07800601 | 736 | |
e77a0742 | 737 | if (!machine->kptr_restrict_warned && |
5f6f5580 ACM |
738 | symbol_conf.kptr_restrict && |
739 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
b89a5124 ACM |
740 | if (!perf_evlist__exclude_kernel(top->session->evlist)) { |
741 | ui__warning( | |
5f6f5580 ACM |
742 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" |
743 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
744 | "Kernel%s samples will not be resolved.\n", | |
e94b861a | 745 | al.map && map__has_symbols(al.map) ? |
5f6f5580 | 746 | " modules" : ""); |
b89a5124 ACM |
747 | if (use_browser <= 0) |
748 | sleep(5); | |
749 | } | |
e77a0742 | 750 | machine->kptr_restrict_warned = true; |
5f6f5580 ACM |
751 | } |
752 | ||
68766bfa | 753 | if (al.sym == NULL && al.map != NULL) { |
e4a338d0 | 754 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
755 | /* |
756 | * As we do lazy loading of symtabs we only will know if the | |
757 | * specified vmlinux file is invalid when we actually have a | |
758 | * hit in kernel space and then try to load it. So if we get | |
759 | * here and there are _no_ symbols in the DSO backing the | |
760 | * kernel map, bail out. | |
761 | * | |
762 | * We may never get here, for instance, if we use -K/ | |
763 | * --hide-kernel-symbols, even if the user specifies an | |
764 | * invalid --vmlinux ;-) | |
765 | */ | |
e77a0742 | 766 | if (!machine->kptr_restrict_warned && !top->vmlinux_warned && |
e94b861a | 767 | __map__is_kernel(al.map) && map__has_symbols(al.map)) { |
e4a338d0 | 768 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
769 | char serr[256]; |
770 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
771 | ui__warning("The %s file can't be used: %s\n%s", | |
772 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
773 | } else { |
774 | ui__warning("A vmlinux file was not found.\n%s", | |
775 | msg); | |
776 | } | |
777 | ||
778 | if (use_browser <= 0) | |
779 | sleep(5); | |
1758af10 | 780 | top->vmlinux_warned = true; |
72b8fa17 | 781 | } |
6cff0e8d KS |
782 | } |
783 | ||
b55cc4ed | 784 | if (al.sym == NULL || !al.sym->idle) { |
4ea062ed | 785 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 786 | struct hist_entry_iter iter = { |
063bd936 NK |
787 | .evsel = evsel, |
788 | .sample = sample, | |
789 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 790 | }; |
70db7533 | 791 | |
7c50391f NK |
792 | if (symbol_conf.cumulate_callchain) |
793 | iter.ops = &hist_iter_cumulative; | |
794 | else | |
795 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 796 | |
4ea062ed | 797 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 798 | |
063bd936 | 799 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
800 | if (err < 0) |
801 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 802 | |
4ea062ed | 803 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 804 | } |
ab81f3fd | 805 | |
b91fc39f | 806 | addr_location__put(&al); |
07800601 IM |
807 | } |
808 | ||
d24e3c98 JO |
809 | static void |
810 | perf_top__process_lost(struct perf_top *top, union perf_event *event, | |
811 | struct perf_evsel *evsel) | |
812 | { | |
813 | struct hists *hists = evsel__hists(evsel); | |
814 | ||
815 | top->lost += event->lost.lost; | |
816 | top->lost_total += event->lost.lost; | |
817 | hists->stats.total_lost += event->lost.lost; | |
818 | } | |
819 | ||
820 | static void | |
821 | perf_top__process_lost_samples(struct perf_top *top, | |
822 | union perf_event *event, | |
823 | struct perf_evsel *evsel) | |
824 | { | |
825 | struct hists *hists = evsel__hists(evsel); | |
826 | ||
827 | top->lost += event->lost_samples.lost; | |
828 | top->lost_total += event->lost_samples.lost; | |
829 | hists->stats.total_lost_samples += event->lost_samples.lost; | |
830 | } | |
831 | ||
d63b9f6f JO |
832 | static u64 last_timestamp; |
833 | ||
1758af10 | 834 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 835 | { |
ebebbf08 KL |
836 | struct record_opts *opts = &top->record_opts; |
837 | struct perf_evlist *evlist = top->evlist; | |
ebebbf08 | 838 | struct perf_mmap *md; |
8115d60c | 839 | union perf_event *event; |
07800601 | 840 | |
ebebbf08 | 841 | md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx]; |
b9bae2c8 | 842 | if (perf_mmap__read_init(md) < 0) |
ebebbf08 KL |
843 | return; |
844 | ||
0019dc87 | 845 | while ((event = perf_mmap__read_event(md)) != NULL) { |
16c66bc1 | 846 | int ret; |
7b27509f | 847 | |
d63b9f6f | 848 | ret = perf_evlist__parse_sample_timestamp(evlist, event, &last_timestamp); |
16c66bc1 | 849 | if (ret && ret != -1) |
743eb868 | 850 | break; |
743eb868 | 851 | |
d63b9f6f | 852 | ret = ordered_events__queue(top->qe.in, event, last_timestamp, 0); |
16c66bc1 JO |
853 | if (ret) |
854 | break; | |
94ad6e7e JO |
855 | |
856 | perf_mmap__consume(md); | |
857 | ||
858 | if (top->qe.rotate) { | |
859 | pthread_mutex_lock(&top->qe.mutex); | |
860 | top->qe.rotate = false; | |
861 | pthread_cond_signal(&top->qe.cond); | |
862 | pthread_mutex_unlock(&top->qe.mutex); | |
863 | } | |
07800601 | 864 | } |
ebebbf08 KL |
865 | |
866 | perf_mmap__read_done(md); | |
07800601 IM |
867 | } |
868 | ||
1758af10 | 869 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 870 | { |
ebebbf08 KL |
871 | bool overwrite = top->record_opts.overwrite; |
872 | struct perf_evlist *evlist = top->evlist; | |
70db7533 ACM |
873 | int i; |
874 | ||
ebebbf08 KL |
875 | if (overwrite) |
876 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING); | |
877 | ||
1758af10 ACM |
878 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
879 | perf_top__mmap_read_idx(top, i); | |
ebebbf08 KL |
880 | |
881 | if (overwrite) { | |
882 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY); | |
883 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING); | |
884 | } | |
2f01190a FW |
885 | } |
886 | ||
63878a53 KL |
887 | /* |
888 | * Check per-event overwrite term. | |
889 | * perf top should support consistent term for all events. | |
890 | * - All events don't have per-event term | |
891 | * E.g. "cpu/cpu-cycles/,cpu/instructions/" | |
892 | * Nothing change, return 0. | |
893 | * - All events have same per-event term | |
894 | * E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/ | |
895 | * Using the per-event setting to replace the opts->overwrite if | |
896 | * they are different, then return 0. | |
897 | * - Events have different per-event term | |
898 | * E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/" | |
899 | * Return -1 | |
900 | * - Some of the event set per-event term, but some not. | |
901 | * E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/" | |
902 | * Return -1 | |
903 | */ | |
904 | static int perf_top__overwrite_check(struct perf_top *top) | |
905 | { | |
906 | struct record_opts *opts = &top->record_opts; | |
907 | struct perf_evlist *evlist = top->evlist; | |
908 | struct perf_evsel_config_term *term; | |
909 | struct list_head *config_terms; | |
910 | struct perf_evsel *evsel; | |
911 | int set, overwrite = -1; | |
912 | ||
913 | evlist__for_each_entry(evlist, evsel) { | |
914 | set = -1; | |
915 | config_terms = &evsel->config_terms; | |
916 | list_for_each_entry(term, config_terms, list) { | |
917 | if (term->type == PERF_EVSEL__CONFIG_TERM_OVERWRITE) | |
918 | set = term->val.overwrite ? 1 : 0; | |
919 | } | |
920 | ||
921 | /* no term for current and previous event (likely) */ | |
922 | if ((overwrite < 0) && (set < 0)) | |
923 | continue; | |
924 | ||
925 | /* has term for both current and previous event, compare */ | |
926 | if ((overwrite >= 0) && (set >= 0) && (overwrite != set)) | |
927 | return -1; | |
928 | ||
929 | /* no term for current event but has term for previous one */ | |
930 | if ((overwrite >= 0) && (set < 0)) | |
931 | return -1; | |
932 | ||
933 | /* has term for current event */ | |
934 | if ((overwrite < 0) && (set >= 0)) { | |
935 | /* if it's first event, set overwrite */ | |
936 | if (evsel == perf_evlist__first(evlist)) | |
937 | overwrite = set; | |
938 | else | |
939 | return -1; | |
940 | } | |
941 | } | |
942 | ||
943 | if ((overwrite >= 0) && (opts->overwrite != overwrite)) | |
944 | opts->overwrite = overwrite; | |
945 | ||
946 | return 0; | |
947 | } | |
948 | ||
204721d7 KL |
949 | static int perf_top_overwrite_fallback(struct perf_top *top, |
950 | struct perf_evsel *evsel) | |
951 | { | |
952 | struct record_opts *opts = &top->record_opts; | |
953 | struct perf_evlist *evlist = top->evlist; | |
954 | struct perf_evsel *counter; | |
955 | ||
956 | if (!opts->overwrite) | |
957 | return 0; | |
958 | ||
959 | /* only fall back when first event fails */ | |
960 | if (evsel != perf_evlist__first(evlist)) | |
961 | return 0; | |
962 | ||
963 | evlist__for_each_entry(evlist, counter) | |
964 | counter->attr.write_backward = false; | |
965 | opts->overwrite = false; | |
853745f5 | 966 | pr_debug2("fall back to non-overwrite mode\n"); |
204721d7 KL |
967 | return 1; |
968 | } | |
969 | ||
11859e82 | 970 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 971 | { |
d6195a6a | 972 | char msg[BUFSIZ]; |
6a4bb04c | 973 | struct perf_evsel *counter; |
1758af10 | 974 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 975 | struct record_opts *opts = &top->record_opts; |
727ab04e | 976 | |
63878a53 KL |
977 | if (perf_top__overwrite_check(top)) { |
978 | ui__error("perf top only support consistent per-event " | |
979 | "overwrite setting for all events\n"); | |
980 | goto out_err; | |
981 | } | |
982 | ||
e68ae9cf | 983 | perf_evlist__config(evlist, opts, &callchain_param); |
7e4ff9e3 | 984 | |
e5cadb93 | 985 | evlist__for_each_entry(evlist, counter) { |
72cb7013 | 986 | try_again: |
1758af10 | 987 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 988 | top->evlist->threads) < 0) { |
204721d7 KL |
989 | |
990 | /* | |
991 | * Specially handle overwrite fall back. | |
992 | * Because perf top is the only tool which has | |
993 | * overwrite mode by default, support | |
994 | * both overwrite and non-overwrite mode, and | |
995 | * require consistent mode for all events. | |
996 | * | |
997 | * May move it to generic code with more tools | |
998 | * have similar attribute. | |
999 | */ | |
1000 | if (perf_missing_features.write_backward && | |
1001 | perf_top_overwrite_fallback(top, counter)) | |
1002 | goto try_again; | |
1003 | ||
56e52e85 | 1004 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
bb963e16 | 1005 | if (verbose > 0) |
c0a54341 | 1006 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
1007 | goto try_again; |
1008 | } | |
c286c419 | 1009 | |
56e52e85 ACM |
1010 | perf_evsel__open_strerror(counter, &opts->target, |
1011 | errno, msg, sizeof(msg)); | |
1012 | ui__error("%s\n", msg); | |
c286c419 | 1013 | goto out_err; |
d6d901c2 | 1014 | } |
716c69fe | 1015 | } |
70db7533 | 1016 | |
f74b9d3a | 1017 | if (perf_evlist__mmap(evlist, opts->mmap_pages) < 0) { |
3780f488 | 1018 | ui__error("Failed to mmap with %d (%s)\n", |
c8b5f2c9 | 1019 | errno, str_error_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
1020 | goto out_err; |
1021 | } | |
1022 | ||
11859e82 | 1023 | return 0; |
c286c419 ACM |
1024 | |
1025 | out_err: | |
11859e82 | 1026 | return -1; |
716c69fe IM |
1027 | } |
1028 | ||
e3815264 | 1029 | static int callchain_param__setup_sample_type(struct callchain_param *callchain) |
19d4ac3c | 1030 | { |
2e0453af | 1031 | if (!perf_hpp_list.sym) { |
e3815264 | 1032 | if (callchain->enabled) { |
3780f488 | 1033 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
1034 | return -EINVAL; |
1035 | } | |
e3815264 ACM |
1036 | } else if (callchain->mode != CHAIN_NONE) { |
1037 | if (callchain_register_param(callchain) < 0) { | |
3780f488 | 1038 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
1039 | return -EINVAL; |
1040 | } | |
1041 | } | |
1042 | ||
1043 | return 0; | |
1044 | } | |
1045 | ||
16c66bc1 JO |
1046 | static struct ordered_events *rotate_queues(struct perf_top *top) |
1047 | { | |
1048 | struct ordered_events *in = top->qe.in; | |
1049 | ||
1050 | if (top->qe.in == &top->qe.data[1]) | |
1051 | top->qe.in = &top->qe.data[0]; | |
1052 | else | |
1053 | top->qe.in = &top->qe.data[1]; | |
1054 | ||
1055 | return in; | |
1056 | } | |
1057 | ||
1058 | static void *process_thread(void *arg) | |
1059 | { | |
1060 | struct perf_top *top = arg; | |
1061 | ||
1062 | while (!done) { | |
1063 | struct ordered_events *out, *in = top->qe.in; | |
1064 | ||
1065 | if (!in->nr_events) { | |
1066 | usleep(100); | |
1067 | continue; | |
1068 | } | |
1069 | ||
16c66bc1 | 1070 | out = rotate_queues(top); |
94ad6e7e JO |
1071 | |
1072 | pthread_mutex_lock(&top->qe.mutex); | |
1073 | top->qe.rotate = true; | |
1074 | pthread_cond_wait(&top->qe.cond, &top->qe.mutex); | |
1075 | pthread_mutex_unlock(&top->qe.mutex); | |
16c66bc1 JO |
1076 | |
1077 | if (ordered_events__flush(out, OE_FLUSH__TOP)) | |
1078 | pr_err("failed to process events\n"); | |
1079 | } | |
1080 | ||
1081 | return NULL; | |
1082 | } | |
1083 | ||
d63b9f6f JO |
1084 | /* |
1085 | * Allow only 'top->delay_secs' seconds behind samples. | |
1086 | */ | |
1087 | static int should_drop(struct ordered_event *qevent, struct perf_top *top) | |
1088 | { | |
1089 | union perf_event *event = qevent->event; | |
1090 | u64 delay_timestamp; | |
1091 | ||
1092 | if (event->header.type != PERF_RECORD_SAMPLE) | |
1093 | return false; | |
1094 | ||
1095 | delay_timestamp = qevent->timestamp + top->delay_secs * NSEC_PER_SEC; | |
1096 | return delay_timestamp < last_timestamp; | |
1097 | } | |
1098 | ||
16c66bc1 JO |
1099 | static int deliver_event(struct ordered_events *qe, |
1100 | struct ordered_event *qevent) | |
1101 | { | |
1102 | struct perf_top *top = qe->data; | |
1103 | struct perf_evlist *evlist = top->evlist; | |
1104 | struct perf_session *session = top->session; | |
1105 | union perf_event *event = qevent->event; | |
1106 | struct perf_sample sample; | |
1107 | struct perf_evsel *evsel; | |
1108 | struct machine *machine; | |
1109 | int ret = -1; | |
1110 | ||
97f7e0b3 JO |
1111 | if (should_drop(qevent, top)) { |
1112 | top->drop++; | |
1113 | top->drop_total++; | |
d63b9f6f | 1114 | return 0; |
97f7e0b3 | 1115 | } |
d63b9f6f | 1116 | |
16c66bc1 JO |
1117 | ret = perf_evlist__parse_sample(evlist, event, &sample); |
1118 | if (ret) { | |
1119 | pr_err("Can't parse sample, err = %d\n", ret); | |
1120 | goto next_event; | |
1121 | } | |
1122 | ||
1123 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); | |
1124 | assert(evsel != NULL); | |
1125 | ||
1126 | if (event->header.type == PERF_RECORD_SAMPLE) | |
1127 | ++top->samples; | |
1128 | ||
1129 | switch (sample.cpumode) { | |
1130 | case PERF_RECORD_MISC_USER: | |
1131 | ++top->us_samples; | |
1132 | if (top->hide_user_symbols) | |
1133 | goto next_event; | |
1134 | machine = &session->machines.host; | |
1135 | break; | |
1136 | case PERF_RECORD_MISC_KERNEL: | |
1137 | ++top->kernel_samples; | |
1138 | if (top->hide_kernel_symbols) | |
1139 | goto next_event; | |
1140 | machine = &session->machines.host; | |
1141 | break; | |
1142 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1143 | ++top->guest_kernel_samples; | |
1144 | machine = perf_session__find_machine(session, | |
1145 | sample.pid); | |
1146 | break; | |
1147 | case PERF_RECORD_MISC_GUEST_USER: | |
1148 | ++top->guest_us_samples; | |
1149 | /* | |
1150 | * TODO: we don't process guest user from host side | |
1151 | * except simple counting. | |
1152 | */ | |
1153 | goto next_event; | |
1154 | default: | |
1155 | if (event->header.type == PERF_RECORD_SAMPLE) | |
1156 | goto next_event; | |
1157 | machine = &session->machines.host; | |
1158 | break; | |
1159 | } | |
1160 | ||
1161 | if (event->header.type == PERF_RECORD_SAMPLE) { | |
1162 | perf_event__process_sample(&top->tool, event, evsel, | |
1163 | &sample, machine); | |
1164 | } else if (event->header.type == PERF_RECORD_LOST) { | |
1165 | perf_top__process_lost(top, event, evsel); | |
1166 | } else if (event->header.type == PERF_RECORD_LOST_SAMPLES) { | |
1167 | perf_top__process_lost_samples(top, event, evsel); | |
1168 | } else if (event->header.type < PERF_RECORD_MAX) { | |
1169 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); | |
1170 | machine__process_event(machine, event, &sample); | |
1171 | } else | |
1172 | ++session->evlist->stats.nr_unknown_events; | |
1173 | ||
1174 | ret = 0; | |
1175 | next_event: | |
1176 | return ret; | |
1177 | } | |
1178 | ||
1179 | static void init_process_thread(struct perf_top *top) | |
1180 | { | |
1181 | ordered_events__init(&top->qe.data[0], deliver_event, top); | |
1182 | ordered_events__init(&top->qe.data[1], deliver_event, top); | |
1183 | ordered_events__set_copy_on_queue(&top->qe.data[0], true); | |
1184 | ordered_events__set_copy_on_queue(&top->qe.data[1], true); | |
1185 | top->qe.in = &top->qe.data[0]; | |
94ad6e7e JO |
1186 | pthread_mutex_init(&top->qe.mutex, NULL); |
1187 | pthread_cond_init(&top->qe.cond, NULL); | |
16c66bc1 JO |
1188 | } |
1189 | ||
1758af10 | 1190 | static int __cmd_top(struct perf_top *top) |
716c69fe | 1191 | { |
5d8bb1ec MP |
1192 | char msg[512]; |
1193 | struct perf_evsel *pos; | |
1194 | struct perf_evsel_config_term *err_term; | |
1195 | struct perf_evlist *evlist = top->evlist; | |
b4006796 | 1196 | struct record_opts *opts = &top->record_opts; |
16c66bc1 | 1197 | pthread_t thread, thread_process; |
19d4ac3c | 1198 | int ret; |
f5fc1412 | 1199 | |
6a4d98d7 | 1200 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 1201 | if (top->session == NULL) |
52e02834 | 1202 | return -1; |
07800601 | 1203 | |
f178fd2d ACM |
1204 | if (!top->annotation_opts.objdump_path) { |
1205 | ret = perf_env__lookup_objdump(&top->session->header.env, | |
1206 | &top->annotation_opts.objdump_path); | |
0d3942db SB |
1207 | if (ret) |
1208 | goto out_delete; | |
1209 | } | |
1210 | ||
e3815264 | 1211 | ret = callchain_param__setup_sample_type(&callchain_param); |
19d4ac3c ACM |
1212 | if (ret) |
1213 | goto out_delete; | |
1214 | ||
9d8b172f | 1215 | if (perf_session__register_idle_thread(top->session) < 0) |
c53d138d NK |
1216 | goto out_delete; |
1217 | ||
0c6b4994 KL |
1218 | if (top->nr_threads_synthesize > 1) |
1219 | perf_set_multithreaded(); | |
340b47f5 | 1220 | |
16c66bc1 JO |
1221 | init_process_thread(top); |
1222 | ||
a33fbd56 | 1223 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
340b47f5 | 1224 | top->evlist->threads, false, |
0c6b4994 | 1225 | top->nr_threads_synthesize); |
340b47f5 | 1226 | |
0c6b4994 KL |
1227 | if (top->nr_threads_synthesize > 1) |
1228 | perf_set_singlethreaded(); | |
2e7ea3ab | 1229 | |
35a634f7 | 1230 | if (perf_hpp_list.socket) { |
2e7ea3ab KL |
1231 | ret = perf_env__read_cpu_topology_map(&perf_env); |
1232 | if (ret < 0) | |
1233 | goto out_err_cpu_topo; | |
1234 | } | |
1235 | ||
11859e82 ACM |
1236 | ret = perf_top__start_counters(top); |
1237 | if (ret) | |
1238 | goto out_delete; | |
1239 | ||
5d8bb1ec MP |
1240 | ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term); |
1241 | if (ret) { | |
62d94b00 | 1242 | pr_err("failed to set config \"%s\" on event %s with %d (%s)\n", |
5d8bb1ec MP |
1243 | err_term->val.drv_cfg, perf_evsel__name(pos), errno, |
1244 | str_error_r(errno, msg, sizeof(msg))); | |
1245 | goto out_delete; | |
1246 | } | |
1247 | ||
1758af10 | 1248 | top->session->evlist = top->evlist; |
7b56cce2 | 1249 | perf_session__set_id_hdr_size(top->session); |
07800601 | 1250 | |
2376c67a ACM |
1251 | /* |
1252 | * When perf is starting the traced process, all the events (apart from | |
1253 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
1254 | * prematurely enabling them. | |
1255 | * | |
1256 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
1257 | * so leave the check here. | |
1258 | */ | |
602ad878 | 1259 | if (!target__none(&opts->target)) |
2376c67a ACM |
1260 | perf_evlist__enable(top->evlist); |
1261 | ||
11859e82 | 1262 | ret = -1; |
16c66bc1 JO |
1263 | if (pthread_create(&thread_process, NULL, process_thread, top)) { |
1264 | ui__error("Could not create process thread.\n"); | |
1265 | goto out_delete; | |
1266 | } | |
1267 | ||
c0443df1 | 1268 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 1269 | display_thread), top)) { |
3780f488 | 1270 | ui__error("Could not create display thread.\n"); |
16c66bc1 | 1271 | goto out_join_thread; |
07800601 IM |
1272 | } |
1273 | ||
1758af10 | 1274 | if (top->realtime_prio) { |
07800601 IM |
1275 | struct sched_param param; |
1276 | ||
1758af10 | 1277 | param.sched_priority = top->realtime_prio; |
07800601 | 1278 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 1279 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 1280 | goto out_join; |
07800601 IM |
1281 | } |
1282 | } | |
1283 | ||
ff27a06a DM |
1284 | /* Wait for a minimal set of events before starting the snapshot */ |
1285 | perf_evlist__poll(top->evlist, 100); | |
1286 | ||
1287 | perf_top__mmap_read(top); | |
1288 | ||
11859e82 | 1289 | while (!done) { |
1758af10 | 1290 | u64 hits = top->samples; |
07800601 | 1291 | |
1758af10 | 1292 | perf_top__mmap_read(top); |
07800601 | 1293 | |
ebebbf08 | 1294 | if (opts->overwrite || (hits == top->samples)) |
f66a889d | 1295 | ret = perf_evlist__poll(top->evlist, 100); |
b135e5ee JO |
1296 | |
1297 | if (resize) { | |
1298 | perf_top__resize(top); | |
1299 | resize = 0; | |
1300 | } | |
07800601 IM |
1301 | } |
1302 | ||
11859e82 | 1303 | ret = 0; |
ae256fa2 JO |
1304 | out_join: |
1305 | pthread_join(thread, NULL); | |
16c66bc1 | 1306 | out_join_thread: |
94ad6e7e | 1307 | pthread_cond_signal(&top->qe.cond); |
16c66bc1 | 1308 | pthread_join(thread_process, NULL); |
19d4ac3c | 1309 | out_delete: |
1758af10 ACM |
1310 | perf_session__delete(top->session); |
1311 | top->session = NULL; | |
19d4ac3c | 1312 | |
11859e82 | 1313 | return ret; |
2e7ea3ab KL |
1314 | |
1315 | out_err_cpu_topo: { | |
1316 | char errbuf[BUFSIZ]; | |
c8b5f2c9 | 1317 | const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); |
2e7ea3ab KL |
1318 | |
1319 | ui__error("Could not read the CPU topology map: %s\n", err); | |
1320 | goto out_delete; | |
1321 | } | |
19d4ac3c ACM |
1322 | } |
1323 | ||
1324 | static int | |
ae779a63 | 1325 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1326 | { |
19d4ac3c | 1327 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1328 | return record_callchain_opt(opt, arg, unset); |
1329 | } | |
19d4ac3c | 1330 | |
ae779a63 JO |
1331 | static int |
1332 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1333 | { | |
2ddd5c04 | 1334 | struct callchain_param *callchain = opt->value; |
a2c10d39 | 1335 | |
2ddd5c04 ACM |
1336 | callchain->enabled = !unset; |
1337 | callchain->record_mode = CALLCHAIN_FP; | |
a2c10d39 NK |
1338 | |
1339 | /* | |
1340 | * --no-call-graph | |
1341 | */ | |
1342 | if (unset) { | |
1343 | symbol_conf.use_callchain = false; | |
2ddd5c04 | 1344 | callchain->record_mode = CALLCHAIN_NONE; |
a2c10d39 NK |
1345 | return 0; |
1346 | } | |
1347 | ||
1348 | return parse_callchain_top_opt(arg); | |
07800601 | 1349 | } |
b456bae0 | 1350 | |
b8cbb349 | 1351 | static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) |
eb853e80 | 1352 | { |
a3a4a3b3 YX |
1353 | if (!strcmp(var, "top.call-graph")) { |
1354 | var = "call-graph.record-mode"; | |
1355 | return perf_default_config(var, value, cb); | |
1356 | } | |
104ac991 NK |
1357 | if (!strcmp(var, "top.children")) { |
1358 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1359 | return 0; | |
1360 | } | |
eb853e80 | 1361 | |
b8cbb349 | 1362 | return 0; |
eb853e80 JO |
1363 | } |
1364 | ||
fa5df943 NK |
1365 | static int |
1366 | parse_percent_limit(const struct option *opt, const char *arg, | |
1367 | int unset __maybe_unused) | |
1368 | { | |
1369 | struct perf_top *top = opt->value; | |
1370 | ||
1371 | top->min_percent = strtof(arg, NULL); | |
1372 | return 0; | |
1373 | } | |
1374 | ||
76a26549 NK |
1375 | const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP |
1376 | "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; | |
a2c10d39 | 1377 | |
b0ad8ea6 | 1378 | int cmd_top(int argc, const char **argv) |
1758af10 | 1379 | { |
16ad2ffb | 1380 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1381 | struct perf_top top = { |
1382 | .count_filter = 5, | |
1383 | .delay_secs = 2, | |
2376c67a ACM |
1384 | .record_opts = { |
1385 | .mmap_pages = UINT_MAX, | |
1386 | .user_freq = UINT_MAX, | |
1387 | .user_interval = ULLONG_MAX, | |
1388 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1389 | .target = { |
2376c67a ACM |
1390 | .uses_mmap = true, |
1391 | }, | |
218d6111 ACM |
1392 | /* |
1393 | * FIXME: This will lose PERF_RECORD_MMAP and other metadata | |
1394 | * when we pause, fix that and reenable. Probably using a | |
1395 | * separate evlist with a dummy event, i.e. a non-overwrite | |
1396 | * ring buffer just for metadata events, while PERF_RECORD_SAMPLE | |
1397 | * stays in overwrite mode. -acme | |
1398 | * */ | |
1399 | .overwrite = 0, | |
16c66bc1 | 1400 | .sample_time = true, |
d1cb9fce | 1401 | }, |
029c75e5 | 1402 | .max_stack = sysctl__max_stack(), |
982d410b | 1403 | .annotation_opts = annotation__default_options, |
0c6b4994 | 1404 | .nr_threads_synthesize = UINT_MAX, |
1758af10 | 1405 | }; |
b4006796 | 1406 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1407 | struct target *target = &opts->target; |
1758af10 | 1408 | const struct option options[] = { |
8c3e10eb | 1409 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1410 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1411 | parse_events_option), |
2376c67a ACM |
1412 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1413 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1414 | "profile events on existing process id"), |
2376c67a | 1415 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1416 | "profile events on existing thread id"), |
2376c67a | 1417 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1418 | "system-wide collection from all CPUs"), |
2376c67a | 1419 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1420 | "list of cpus to monitor"), |
b32d133a ACM |
1421 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1422 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1423 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1424 | "don't load vmlinux even if found"), | |
1b3aae90 ACM |
1425 | OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, |
1426 | "file", "kallsyms pathname"), | |
8c3e10eb | 1427 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1428 | "hide kernel symbols"), |
994a1f78 JO |
1429 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1430 | "number of mmap data pages", | |
1431 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1432 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1433 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1434 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1435 | "number of seconds to delay between refreshes"), |
1758af10 | 1436 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1437 | "dump the symbol table used for profiling"), |
8c3e10eb | 1438 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1439 | "only display functions with more events than this"), |
bf80669e | 1440 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1441 | "put the counters into a counter group"), |
2376c67a ACM |
1442 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1443 | "child tasks do not inherit counters"), | |
1758af10 | 1444 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1445 | "symbol to annotate"), |
2376c67a | 1446 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
7831bf23 ACM |
1447 | OPT_CALLBACK('F', "freq", &top.record_opts, "freq or 'max'", |
1448 | "profile at this frequency", | |
1449 | record__parse_freq), | |
8c3e10eb | 1450 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1451 | "display this many functions"), |
8c3e10eb | 1452 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1453 | "hide user symbols"), |
1758af10 ACM |
1454 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1455 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1456 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1457 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1458 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1459 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1460 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1461 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1462 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1463 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1464 | "Show a column with the number of samples"), | |
2ddd5c04 | 1465 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
a2c10d39 | 1466 | NULL, "enables call-graph recording and display", |
ae779a63 | 1467 | &callchain_opt), |
2ddd5c04 | 1468 | OPT_CALLBACK(0, "call-graph", &callchain_param, |
76a26549 | 1469 | "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", |
a2c10d39 | 1470 | top_callchain_help, &parse_callchain_opt), |
1432ec34 NK |
1471 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1472 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1473 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1474 | "Set the maximum stack depth when parsing the callchain. " | |
4cb93446 | 1475 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
b21484f1 GP |
1476 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1477 | "ignore callees of these functions in call graphs", | |
1478 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1479 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1480 | "Show a column with the sum of periods"), | |
1481 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1482 | "only consider symbols in these dsos"), | |
1483 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1484 | "only consider symbols in these comms"), | |
1485 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1486 | "only consider these symbols"), | |
1eddd9e4 | 1487 | OPT_BOOLEAN(0, "source", &top.annotation_opts.annotate_src, |
64c6f0c7 | 1488 | "Interleave source code with assembly code (default)"), |
1eddd9e4 | 1489 | OPT_BOOLEAN(0, "asm-raw", &top.annotation_opts.show_asm_raw, |
64c6f0c7 | 1490 | "Display raw encoding of assembly instructions (default)"), |
763122ad AK |
1491 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1492 | "Enable kernel symbol demangling"), | |
f178fd2d | 1493 | OPT_STRING(0, "objdump", &top.annotation_opts.objdump_path, "path", |
0d3942db | 1494 | "objdump binary to use for disassembly and annotations"), |
a47e843e | 1495 | OPT_STRING('M', "disassembler-style", &top.annotation_opts.disassembler_style, "disassembler style", |
64c6f0c7 | 1496 | "Specify disassembler style (e.g. -M intel for intel syntax)"), |
2376c67a | 1497 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1498 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1499 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1500 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1501 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1502 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1503 | "width[,width...]", | |
1504 | "don't try to adjust column width, use these fixed values"), | |
3fcb10e4 | 1505 | OPT_UINTEGER(0, "proc-map-timeout", &proc_map_timeout, |
9d9cad76 | 1506 | "per thread proc mmap processing timeout in ms"), |
a18b027e AK |
1507 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1508 | "branch any", "sample any taken branches", | |
1509 | parse_branch_stack), | |
1510 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1511 | "branch filter mask", "branch stack filter modes", | |
1512 | parse_branch_stack), | |
053a3989 NK |
1513 | OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
1514 | "Show raw trace event output (do not use print fmt or plugins)"), | |
c92fcfde NK |
1515 | OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
1516 | "Show entries in a hierarchy"), | |
4e303fbe | 1517 | OPT_BOOLEAN(0, "overwrite", &top.record_opts.overwrite, |
218d6111 | 1518 | "Use a backward ring buffer, default: no"), |
868a8329 | 1519 | OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), |
0c6b4994 KL |
1520 | OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, |
1521 | "number of thread to run event synthesize"), | |
b456bae0 | 1522 | OPT_END() |
1758af10 | 1523 | }; |
be772842 ACM |
1524 | const char * const top_usage[] = { |
1525 | "perf top [<options>]", | |
1526 | NULL | |
1527 | }; | |
a635fc51 ACM |
1528 | int status = hists__init(); |
1529 | ||
1530 | if (status < 0) | |
1531 | return status; | |
b456bae0 | 1532 | |
982d410b ACM |
1533 | top.annotation_opts.min_pcnt = 5; |
1534 | top.annotation_opts.context = 4; | |
1535 | ||
334fe7a3 | 1536 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1537 | if (top.evlist == NULL) |
361c99a6 ACM |
1538 | return -ENOMEM; |
1539 | ||
ecc4c561 ACM |
1540 | status = perf_config(perf_top_config, &top); |
1541 | if (status) | |
1542 | return status; | |
eb853e80 | 1543 | |
b456bae0 IM |
1544 | argc = parse_options(argc, argv, options, top_usage, 0); |
1545 | if (argc) | |
1546 | usage_with_options(top_usage, options); | |
1547 | ||
54f8f403 NK |
1548 | if (!top.evlist->nr_entries && |
1549 | perf_evlist__add_default(top.evlist) < 0) { | |
1550 | pr_err("Not enough memory for event selector list\n"); | |
1551 | goto out_delete_evlist; | |
1552 | } | |
1553 | ||
c92fcfde NK |
1554 | if (symbol_conf.report_hierarchy) { |
1555 | /* disable incompatible options */ | |
1556 | symbol_conf.event_group = false; | |
1557 | symbol_conf.cumulate_callchain = false; | |
1558 | ||
1559 | if (field_order) { | |
1560 | pr_err("Error: --hierarchy and --fields options cannot be used together\n"); | |
1561 | parse_options_usage(top_usage, options, "fields", 0); | |
1562 | parse_options_usage(NULL, options, "hierarchy", 0); | |
1563 | goto out_delete_evlist; | |
1564 | } | |
1565 | } | |
1566 | ||
590ac60d JY |
1567 | if (opts->branch_stack && callchain_param.enabled) |
1568 | symbol_conf.show_branchflag_count = true; | |
1569 | ||
512ae1bd | 1570 | sort__mode = SORT_MODE__TOP; |
6fe8c26d | 1571 | /* display thread wants entries to be collapsed in a different tree */ |
52225036 | 1572 | perf_hpp_list.need_collapse = 1; |
ab81f3fd | 1573 | |
3ee60c3b ACM |
1574 | if (top.use_stdio) |
1575 | use_browser = 0; | |
1576 | else if (top.use_tui) | |
1577 | use_browser = 1; | |
1578 | ||
1579 | setup_browser(false); | |
1580 | ||
40184c46 | 1581 | if (setup_sorting(top.evlist) < 0) { |
6fe8c26d NK |
1582 | if (sort_order) |
1583 | parse_options_usage(top_usage, options, "s", 1); | |
1584 | if (field_order) | |
1585 | parse_options_usage(sort_order ? NULL : top_usage, | |
1586 | options, "fields", 0); | |
d37a92dc NK |
1587 | goto out_delete_evlist; |
1588 | } | |
ab81f3fd | 1589 | |
602ad878 | 1590 | status = target__validate(target); |
16ad2ffb | 1591 | if (status) { |
602ad878 | 1592 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1593 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1594 | } |
1595 | ||
602ad878 | 1596 | status = target__parse_uid(target); |
16ad2ffb NK |
1597 | if (status) { |
1598 | int saved_errno = errno; | |
4bd0f2d2 | 1599 | |
602ad878 | 1600 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1601 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1602 | |
1603 | status = -saved_errno; | |
0d37aa34 | 1604 | goto out_delete_evlist; |
16ad2ffb | 1605 | } |
0d37aa34 | 1606 | |
602ad878 | 1607 | if (target__none(target)) |
2376c67a | 1608 | target->system_wide = true; |
10b47d54 | 1609 | |
f8a5c0b2 ACM |
1610 | if (perf_evlist__create_maps(top.evlist, target) < 0) { |
1611 | ui__error("Couldn't create thread/CPU maps: %s\n", | |
c8b5f2c9 | 1612 | errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); |
f8a5c0b2 | 1613 | goto out_delete_evlist; |
69aad6f1 | 1614 | } |
5a8e5a30 | 1615 | |
8c3e10eb ACM |
1616 | if (top.delay_secs < 1) |
1617 | top.delay_secs = 1; | |
2f335a02 | 1618 | |
b4006796 | 1619 | if (record_opts__config(opts)) { |
2376c67a | 1620 | status = -EINVAL; |
03ad9747 | 1621 | goto out_delete_evlist; |
69aad6f1 ACM |
1622 | } |
1623 | ||
0c21f736 | 1624 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1625 | |
e3815264 | 1626 | if (!callchain_param.enabled) { |
1432ec34 NK |
1627 | symbol_conf.cumulate_callchain = false; |
1628 | perf_hpp__cancel_cumulate(); | |
1629 | } | |
1630 | ||
792aeafa NK |
1631 | if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
1632 | callchain_param.order = ORDER_CALLER; | |
1633 | ||
b01141f4 ACM |
1634 | status = symbol__annotation_init(); |
1635 | if (status < 0) | |
1636 | goto out_delete_evlist; | |
69aad6f1 | 1637 | |
7f0b6fde ACM |
1638 | annotation_config__init(); |
1639 | ||
69aad6f1 | 1640 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); |
0a7e6d1b | 1641 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1642 | return -1; |
1643 | ||
08e71542 | 1644 | sort__setup_elide(stdout); |
ab81f3fd | 1645 | |
1758af10 | 1646 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1647 | if (top.print_entries == 0) { |
1758af10 | 1648 | perf_top__update_print_entries(&top); |
244a1086 | 1649 | signal(SIGWINCH, winch_sig); |
3b6ed988 ACM |
1650 | } |
1651 | ||
1758af10 | 1652 | status = __cmd_top(&top); |
806fb630 | 1653 | |
0d37aa34 | 1654 | out_delete_evlist: |
8c3e10eb | 1655 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1656 | |
1657 | return status; | |
b456bae0 | 1658 | } |