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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 FW |
48 | #include "util/debug.h" |
49 | ||
07800601 | 50 | #include <assert.h> |
31d68e7b | 51 | #include <elf.h> |
07800601 | 52 | #include <fcntl.h> |
0e9b20b8 | 53 | |
07800601 | 54 | #include <stdio.h> |
923c42c1 MG |
55 | #include <termios.h> |
56 | #include <unistd.h> | |
9486aa38 | 57 | #include <inttypes.h> |
0e9b20b8 | 58 | |
07800601 | 59 | #include <errno.h> |
07800601 IM |
60 | #include <time.h> |
61 | #include <sched.h> | |
9607ad3a | 62 | #include <signal.h> |
07800601 IM |
63 | |
64 | #include <sys/syscall.h> | |
65 | #include <sys/ioctl.h> | |
a8fa4960 | 66 | #include <poll.h> |
07800601 IM |
67 | #include <sys/prctl.h> |
68 | #include <sys/wait.h> | |
69 | #include <sys/uio.h> | |
31d68e7b | 70 | #include <sys/utsname.h> |
07800601 IM |
71 | #include <sys/mman.h> |
72 | ||
531d2410 | 73 | #include <linux/stringify.h> |
b9c4b0f4 | 74 | #include <linux/time64.h> |
07800601 IM |
75 | #include <linux/types.h> |
76 | ||
3d689ed6 ACM |
77 | #include "sane_ctype.h" |
78 | ||
11859e82 ACM |
79 | static volatile int done; |
80 | ||
933cbb1c NK |
81 | #define HEADER_LINE_NR 5 |
82 | ||
1758af10 | 83 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 84 | { |
933cbb1c | 85 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
86 | } |
87 | ||
1d037ca1 IT |
88 | static void perf_top__sig_winch(int sig __maybe_unused, |
89 | siginfo_t *info __maybe_unused, void *arg) | |
3b6ed988 | 90 | { |
1758af10 ACM |
91 | struct perf_top *top = arg; |
92 | ||
93 | get_term_dimensions(&top->winsize); | |
94 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
95 | } |
96 | ||
1758af10 | 97 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 MG |
98 | { |
99 | struct symbol *sym; | |
ce6f4fab | 100 | struct annotation *notes; |
439d473b | 101 | struct map *map; |
36532461 | 102 | int err = -1; |
923c42c1 | 103 | |
ab81f3fd | 104 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
105 | return -1; |
106 | ||
ab81f3fd ACM |
107 | sym = he->ms.sym; |
108 | map = he->ms.map; | |
b0a9ab62 ACM |
109 | |
110 | /* | |
111 | * We can't annotate with just /proc/kallsyms | |
112 | */ | |
bbb7f846 AH |
113 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
114 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
115 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
116 | "path\n", sym->name); | |
117 | sleep(1); | |
b0a9ab62 | 118 | return -1; |
b269876c ACM |
119 | } |
120 | ||
ce6f4fab ACM |
121 | notes = symbol__annotation(sym); |
122 | if (notes->src != NULL) { | |
123 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
124 | goto out_assign; |
125 | } | |
923c42c1 | 126 | |
ce6f4fab | 127 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 128 | |
d04b35f8 | 129 | if (symbol__alloc_hist(sym) < 0) { |
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 | |
dcaa3948 | 137 | err = symbol__disassemble(sym, map, NULL, 0, NULL); |
36532461 | 138 | if (err == 0) { |
923c42c1 | 139 | out_assign: |
1758af10 | 140 | top->sym_filter_entry = he; |
ee51d851 ACM |
141 | } else { |
142 | char msg[BUFSIZ]; | |
143 | symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); | |
144 | pr_err("Couldn't annotate %s: %s\n", sym->name, msg); | |
36532461 | 145 | } |
c97cf422 | 146 | |
ce6f4fab | 147 | pthread_mutex_unlock(¬es->lock); |
36532461 | 148 | return err; |
923c42c1 MG |
149 | } |
150 | ||
ab81f3fd | 151 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 152 | { |
ab81f3fd | 153 | struct symbol *sym = he->ms.sym; |
36532461 | 154 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
155 | } |
156 | ||
31d68e7b ACM |
157 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
158 | { | |
159 | struct utsname uts; | |
160 | int err = uname(&uts); | |
161 | ||
162 | ui__warning("Out of bounds address found:\n\n" | |
163 | "Addr: %" PRIx64 "\n" | |
164 | "DSO: %s %c\n" | |
165 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
166 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
167 | "Arch: %s\n" | |
168 | "Kernel: %s\n" | |
169 | "Tools: %s\n\n" | |
170 | "Not all samples will be on the annotation output.\n\n" | |
171 | "Please report to linux-kernel@vger.kernel.org\n", | |
172 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
173 | map->start, map->end, sym->start, sym->end, | |
174 | sym->binding == STB_GLOBAL ? 'g' : | |
175 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
176 | err ? "[unknown]" : uts.machine, | |
177 | err ? "[unknown]" : uts.release, perf_version_string); | |
178 | if (use_browser <= 0) | |
179 | sleep(5); | |
48000a1a | 180 | |
31d68e7b ACM |
181 | map->erange_warned = true; |
182 | } | |
183 | ||
1758af10 ACM |
184 | static void perf_top__record_precise_ip(struct perf_top *top, |
185 | struct hist_entry *he, | |
186 | int counter, 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 | ||
448f13b2 | 202 | err = hist_entry__inc_addr_samples(he, counter, 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; |
ce6f4fab | 228 | struct annotation *notes; |
923c42c1 | 229 | struct symbol *symbol; |
36532461 | 230 | int more; |
923c42c1 | 231 | |
ab81f3fd | 232 | if (!he) |
923c42c1 MG |
233 | return; |
234 | ||
ab81f3fd | 235 | symbol = he->ms.sym; |
ce6f4fab ACM |
236 | notes = symbol__annotation(symbol); |
237 | ||
238 | pthread_mutex_lock(¬es->lock); | |
239 | ||
240 | if (notes->src == NULL) | |
241 | goto out_unlock; | |
923c42c1 | 242 | |
7289f83c | 243 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 244 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 245 | |
db8fd07a | 246 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 | 247 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
5d484f99 ACM |
248 | |
249 | if (top->evlist->enabled) { | |
250 | if (top->zero) | |
251 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
252 | else | |
253 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
254 | } | |
36532461 | 255 | if (more != 0) |
923c42c1 | 256 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
257 | out_unlock: |
258 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 259 | } |
07800601 | 260 | |
1758af10 | 261 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 262 | { |
8c3e10eb ACM |
263 | char bf[160]; |
264 | int printed = 0; | |
1758af10 | 265 | const int win_width = top->winsize.ws_col - 1; |
452ce03b JO |
266 | struct perf_evsel *evsel = top->sym_evsel; |
267 | struct hists *hists = evsel__hists(evsel); | |
d94b9430 | 268 | |
0f5486b5 | 269 | puts(CONSOLE_CLEAR); |
07800601 | 270 | |
1758af10 | 271 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 272 | printf("%s\n", bf); |
07800601 | 273 | |
1758af10 | 274 | perf_top__reset_sample_counters(top); |
07800601 | 275 | |
1a105f74 | 276 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 277 | |
4ea062ed ACM |
278 | if (hists->stats.nr_lost_warned != |
279 | hists->stats.nr_events[PERF_RECORD_LOST]) { | |
280 | hists->stats.nr_lost_warned = | |
281 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
282 | color_fprintf(stdout, PERF_COLOR_RED, |
283 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 284 | hists->stats.nr_lost_warned); |
ab81f3fd | 285 | ++printed; |
93fc64f1 ACM |
286 | } |
287 | ||
1758af10 ACM |
288 | if (top->sym_filter_entry) { |
289 | perf_top__show_details(top); | |
923c42c1 MG |
290 | return; |
291 | } | |
292 | ||
5d484f99 ACM |
293 | if (top->evlist->enabled) { |
294 | if (top->zero) { | |
295 | hists__delete_entries(hists); | |
296 | } else { | |
297 | hists__decay_entries(hists, top->hide_user_symbols, | |
298 | top->hide_kernel_symbols); | |
299 | } | |
701937bd NK |
300 | } |
301 | ||
4ea062ed | 302 | hists__collapse_resort(hists, NULL); |
452ce03b | 303 | perf_evsel__output_resort(evsel, NULL); |
701937bd | 304 | |
4ea062ed | 305 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 306 | putchar('\n'); |
4ea062ed | 307 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
d05e3aae | 308 | top->min_percent, stdout, symbol_conf.use_callchain); |
07800601 IM |
309 | } |
310 | ||
923c42c1 MG |
311 | static void prompt_integer(int *target, const char *msg) |
312 | { | |
313 | char *buf = malloc(0), *p; | |
314 | size_t dummy = 0; | |
315 | int tmp; | |
316 | ||
317 | fprintf(stdout, "\n%s: ", msg); | |
318 | if (getline(&buf, &dummy, stdin) < 0) | |
319 | return; | |
320 | ||
321 | p = strchr(buf, '\n'); | |
322 | if (p) | |
323 | *p = 0; | |
324 | ||
325 | p = buf; | |
326 | while(*p) { | |
327 | if (!isdigit(*p)) | |
328 | goto out_free; | |
329 | p++; | |
330 | } | |
331 | tmp = strtoul(buf, NULL, 10); | |
332 | *target = tmp; | |
333 | out_free: | |
334 | free(buf); | |
335 | } | |
336 | ||
337 | static void prompt_percent(int *target, const char *msg) | |
338 | { | |
339 | int tmp = 0; | |
340 | ||
341 | prompt_integer(&tmp, msg); | |
342 | if (tmp >= 0 && tmp <= 100) | |
343 | *target = tmp; | |
344 | } | |
345 | ||
1758af10 | 346 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
347 | { |
348 | char *buf = malloc(0), *p; | |
1758af10 | 349 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 350 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 351 | struct rb_node *next; |
923c42c1 MG |
352 | size_t dummy = 0; |
353 | ||
354 | /* zero counters of active symbol */ | |
355 | if (syme) { | |
923c42c1 | 356 | __zero_source_counters(syme); |
1758af10 | 357 | top->sym_filter_entry = NULL; |
923c42c1 MG |
358 | } |
359 | ||
360 | fprintf(stdout, "\n%s: ", msg); | |
361 | if (getline(&buf, &dummy, stdin) < 0) | |
362 | goto out_free; | |
363 | ||
364 | p = strchr(buf, '\n'); | |
365 | if (p) | |
366 | *p = 0; | |
367 | ||
4ea062ed | 368 | next = rb_first(&hists->entries); |
ab81f3fd ACM |
369 | while (next) { |
370 | n = rb_entry(next, struct hist_entry, rb_node); | |
371 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
372 | found = n; | |
923c42c1 MG |
373 | break; |
374 | } | |
ab81f3fd | 375 | next = rb_next(&n->rb_node); |
923c42c1 MG |
376 | } |
377 | ||
378 | if (!found) { | |
66aeb6d5 | 379 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 380 | sleep(1); |
923c42c1 | 381 | } else |
1758af10 | 382 | perf_top__parse_source(top, found); |
923c42c1 MG |
383 | |
384 | out_free: | |
385 | free(buf); | |
386 | } | |
387 | ||
1758af10 | 388 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 389 | { |
091bd2e9 MG |
390 | char *name = NULL; |
391 | ||
1758af10 ACM |
392 | if (top->sym_filter_entry) { |
393 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
394 | name = sym->name; |
395 | } | |
396 | ||
397 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
398 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
399 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 400 | |
1758af10 | 401 | if (top->evlist->nr_entries > 1) |
7289f83c | 402 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 403 | |
1758af10 | 404 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 405 | |
1758af10 | 406 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
407 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
408 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 409 | |
8ffcda17 | 410 | fprintf(stdout, |
1a72cfa6 | 411 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 412 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
413 | fprintf(stdout, |
414 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
415 | top->hide_user_symbols ? "yes" : "no"); |
416 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
417 | fprintf(stdout, "\t[qQ] quit.\n"); |
418 | } | |
419 | ||
1758af10 | 420 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
421 | { |
422 | switch (c) { | |
423 | case 'd': | |
424 | case 'e': | |
425 | case 'f': | |
426 | case 'z': | |
427 | case 'q': | |
428 | case 'Q': | |
8ffcda17 ACM |
429 | case 'K': |
430 | case 'U': | |
6cff0e8d KS |
431 | case 'F': |
432 | case 's': | |
433 | case 'S': | |
091bd2e9 MG |
434 | return 1; |
435 | case 'E': | |
1758af10 | 436 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
437 | default: |
438 | break; | |
091bd2e9 MG |
439 | } |
440 | ||
441 | return 0; | |
923c42c1 MG |
442 | } |
443 | ||
11859e82 | 444 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 445 | { |
11859e82 ACM |
446 | bool ret = true; |
447 | ||
1758af10 | 448 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 449 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 450 | struct termios save; |
091bd2e9 | 451 | |
1758af10 | 452 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
453 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
454 | fflush(stdout); | |
455 | ||
3969cc09 | 456 | set_term_quiet_input(&save); |
091bd2e9 MG |
457 | |
458 | poll(&stdin_poll, 1, -1); | |
459 | c = getc(stdin); | |
460 | ||
461 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 462 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 463 | return ret; |
091bd2e9 MG |
464 | } |
465 | ||
923c42c1 MG |
466 | switch (c) { |
467 | case 'd': | |
1758af10 ACM |
468 | prompt_integer(&top->delay_secs, "Enter display delay"); |
469 | if (top->delay_secs < 1) | |
470 | top->delay_secs = 1; | |
923c42c1 MG |
471 | break; |
472 | case 'e': | |
1758af10 ACM |
473 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
474 | if (top->print_entries == 0) { | |
475 | struct sigaction act = { | |
476 | .sa_sigaction = perf_top__sig_winch, | |
477 | .sa_flags = SA_SIGINFO, | |
478 | }; | |
479 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
480 | sigaction(SIGWINCH, &act, NULL); | |
509605db | 481 | } else { |
3b6ed988 | 482 | signal(SIGWINCH, SIG_DFL); |
509605db | 483 | } |
923c42c1 MG |
484 | break; |
485 | case 'E': | |
1758af10 | 486 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
487 | /* Select 0 as the default event: */ |
488 | int counter = 0; | |
489 | ||
923c42c1 | 490 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 491 | |
e5cadb93 | 492 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
7289f83c | 493 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 494 | |
ec52d976 | 495 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 496 | |
1758af10 | 497 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 498 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 499 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 500 | sleep(1); |
69aad6f1 | 501 | break; |
923c42c1 | 502 | } |
e5cadb93 | 503 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
1758af10 | 504 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 505 | break; |
ec52d976 | 506 | } else |
0c21f736 | 507 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
508 | break; |
509 | case 'f': | |
1758af10 | 510 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
511 | break; |
512 | case 'F': | |
1758af10 ACM |
513 | prompt_percent(&top->sym_pcnt_filter, |
514 | "Enter details display event filter (percent)"); | |
923c42c1 | 515 | break; |
8ffcda17 | 516 | case 'K': |
1758af10 | 517 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 518 | break; |
923c42c1 MG |
519 | case 'q': |
520 | case 'Q': | |
521 | printf("exiting.\n"); | |
1758af10 ACM |
522 | if (top->dump_symtab) |
523 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
524 | ret = false; |
525 | break; | |
923c42c1 | 526 | case 's': |
1758af10 | 527 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
528 | break; |
529 | case 'S': | |
1758af10 | 530 | if (!top->sym_filter_entry) |
923c42c1 MG |
531 | break; |
532 | else { | |
1758af10 | 533 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 534 | |
1758af10 | 535 | top->sym_filter_entry = NULL; |
923c42c1 | 536 | __zero_source_counters(syme); |
923c42c1 MG |
537 | } |
538 | break; | |
8ffcda17 | 539 | case 'U': |
1758af10 | 540 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 541 | break; |
923c42c1 | 542 | case 'z': |
1758af10 | 543 | top->zero = !top->zero; |
923c42c1 | 544 | break; |
83a0944f IM |
545 | default: |
546 | break; | |
923c42c1 | 547 | } |
11859e82 ACM |
548 | |
549 | return ret; | |
923c42c1 MG |
550 | } |
551 | ||
ab81f3fd ACM |
552 | static void perf_top__sort_new_samples(void *arg) |
553 | { | |
554 | struct perf_top *t = arg; | |
452ce03b | 555 | struct perf_evsel *evsel = t->sym_evsel; |
4ea062ed ACM |
556 | struct hists *hists; |
557 | ||
ab81f3fd ACM |
558 | perf_top__reset_sample_counters(t); |
559 | ||
560 | if (t->evlist->selected != NULL) | |
561 | t->sym_evsel = t->evlist->selected; | |
562 | ||
452ce03b | 563 | hists = evsel__hists(evsel); |
4ea062ed | 564 | |
5d484f99 ACM |
565 | if (t->evlist->enabled) { |
566 | if (t->zero) { | |
567 | hists__delete_entries(hists); | |
568 | } else { | |
569 | hists__decay_entries(hists, t->hide_user_symbols, | |
570 | t->hide_kernel_symbols); | |
571 | } | |
701937bd NK |
572 | } |
573 | ||
4ea062ed | 574 | hists__collapse_resort(hists, NULL); |
452ce03b | 575 | perf_evsel__output_resort(evsel, NULL); |
ab81f3fd ACM |
576 | } |
577 | ||
1758af10 | 578 | static void *display_thread_tui(void *arg) |
c0443df1 | 579 | { |
0d37aa34 | 580 | struct perf_evsel *pos; |
1758af10 | 581 | struct perf_top *top = arg; |
ab81f3fd | 582 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
583 | struct hist_browser_timer hbt = { |
584 | .timer = perf_top__sort_new_samples, | |
585 | .arg = top, | |
586 | .refresh = top->delay_secs, | |
587 | }; | |
ab81f3fd | 588 | |
1758af10 | 589 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
590 | |
591 | /* | |
592 | * Initialize the uid_filter_str, in the future the TUI will allow | |
593 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
594 | * via --uid. | |
595 | */ | |
e5cadb93 | 596 | evlist__for_each_entry(top->evlist, pos) { |
4ea062ed ACM |
597 | struct hists *hists = evsel__hists(pos); |
598 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
599 | } | |
0d37aa34 | 600 | |
13d1e536 NK |
601 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
602 | top->min_percent, | |
603 | &top->session->header.env); | |
ab81f3fd | 604 | |
11859e82 | 605 | done = 1; |
c0443df1 ACM |
606 | return NULL; |
607 | } | |
608 | ||
4a1a9971 JO |
609 | static void display_sig(int sig __maybe_unused) |
610 | { | |
611 | done = 1; | |
612 | } | |
613 | ||
614 | static void display_setup_sig(void) | |
615 | { | |
09f4d78a ACM |
616 | signal(SIGSEGV, sighandler_dump_stack); |
617 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
618 | signal(SIGINT, display_sig); |
619 | signal(SIGQUIT, display_sig); | |
620 | signal(SIGTERM, display_sig); | |
621 | } | |
622 | ||
1758af10 | 623 | static void *display_thread(void *arg) |
07800601 | 624 | { |
0f5486b5 | 625 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 626 | struct termios save; |
1758af10 | 627 | struct perf_top *top = arg; |
923c42c1 MG |
628 | int delay_msecs, c; |
629 | ||
4a1a9971 | 630 | display_setup_sig(); |
3af6e338 | 631 | pthread__unblock_sigwinch(); |
923c42c1 | 632 | repeat: |
b9c4b0f4 | 633 | delay_msecs = top->delay_secs * MSEC_PER_SEC; |
9398c484 | 634 | set_term_quiet_input(&save); |
923c42c1 MG |
635 | /* trash return*/ |
636 | getc(stdin); | |
07800601 | 637 | |
11859e82 | 638 | while (!done) { |
1758af10 | 639 | perf_top__print_sym_table(top); |
3af6e338 ACM |
640 | /* |
641 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
642 | * refresh screen in both cases. | |
643 | */ | |
644 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
645 | case 0: | |
646 | continue; | |
647 | case -1: | |
648 | if (errno == EINTR) | |
649 | continue; | |
7b0214b7 | 650 | __fallthrough; |
3af6e338 | 651 | default: |
11859e82 ACM |
652 | c = getc(stdin); |
653 | tcsetattr(0, TCSAFLUSH, &save); | |
654 | ||
655 | if (perf_top__handle_keypress(top, c)) | |
656 | goto repeat; | |
657 | done = 1; | |
3af6e338 ACM |
658 | } |
659 | } | |
07800601 | 660 | |
4a1a9971 | 661 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
662 | return NULL; |
663 | } | |
664 | ||
7c50391f NK |
665 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
666 | struct addr_location *al, bool single, | |
667 | void *arg) | |
668 | { | |
669 | struct perf_top *top = arg; | |
670 | struct hist_entry *he = iter->he; | |
671 | struct perf_evsel *evsel = iter->evsel; | |
672 | ||
2e0453af | 673 | if (perf_hpp_list.sym && single) |
64226bcf | 674 | perf_top__record_precise_ip(top, he, evsel->idx, al->addr); |
7c50391f | 675 | |
a18b027e AK |
676 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
677 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
678 | return 0; |
679 | } | |
680 | ||
1758af10 ACM |
681 | static void perf_event__process_sample(struct perf_tool *tool, |
682 | const union perf_event *event, | |
7b27509f | 683 | struct perf_evsel *evsel, |
8115d60c | 684 | struct perf_sample *sample, |
743eb868 | 685 | struct machine *machine) |
07800601 | 686 | { |
1758af10 | 687 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 688 | struct addr_location al; |
19d4ac3c | 689 | int err; |
5b2bb75a | 690 | |
23346f21 | 691 | if (!machine && perf_guest) { |
6b118e92 DA |
692 | static struct intlist *seen; |
693 | ||
694 | if (!seen) | |
ffe0fb76 | 695 | seen = intlist__new(NULL); |
6b118e92 | 696 | |
ef89325f | 697 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 698 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
699 | sample->pid); |
700 | intlist__add(seen, sample->pid); | |
6b118e92 | 701 | } |
a1645ce1 ZY |
702 | return; |
703 | } | |
704 | ||
0c095715 | 705 | if (!machine) { |
11859e82 | 706 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 707 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
708 | return; |
709 | } | |
710 | ||
8115d60c | 711 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 712 | top->exact_samples++; |
1676b8a0 | 713 | |
bb3eb566 | 714 | if (machine__resolve(machine, &al, sample) < 0) |
1ed091c4 | 715 | return; |
07800601 | 716 | |
e77a0742 | 717 | if (!machine->kptr_restrict_warned && |
5f6f5580 ACM |
718 | symbol_conf.kptr_restrict && |
719 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
720 | ui__warning( | |
721 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
722 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
723 | "Kernel%s samples will not be resolved.\n", | |
c6718350 | 724 | al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? |
5f6f5580 ACM |
725 | " modules" : ""); |
726 | if (use_browser <= 0) | |
727 | sleep(5); | |
e77a0742 | 728 | machine->kptr_restrict_warned = true; |
5f6f5580 ACM |
729 | } |
730 | ||
72b8fa17 | 731 | if (al.sym == NULL) { |
e4a338d0 | 732 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
733 | /* |
734 | * As we do lazy loading of symtabs we only will know if the | |
735 | * specified vmlinux file is invalid when we actually have a | |
736 | * hit in kernel space and then try to load it. So if we get | |
737 | * here and there are _no_ symbols in the DSO backing the | |
738 | * kernel map, bail out. | |
739 | * | |
740 | * We may never get here, for instance, if we use -K/ | |
741 | * --hide-kernel-symbols, even if the user specifies an | |
742 | * invalid --vmlinux ;-) | |
743 | */ | |
e77a0742 | 744 | if (!machine->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 745 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 746 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 | 747 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
748 | char serr[256]; |
749 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
750 | ui__warning("The %s file can't be used: %s\n%s", | |
751 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
752 | } else { |
753 | ui__warning("A vmlinux file was not found.\n%s", | |
754 | msg); | |
755 | } | |
756 | ||
757 | if (use_browser <= 0) | |
758 | sleep(5); | |
1758af10 | 759 | top->vmlinux_warned = true; |
72b8fa17 | 760 | } |
6cff0e8d KS |
761 | } |
762 | ||
b55cc4ed | 763 | if (al.sym == NULL || !al.sym->idle) { |
4ea062ed | 764 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 765 | struct hist_entry_iter iter = { |
063bd936 NK |
766 | .evsel = evsel, |
767 | .sample = sample, | |
768 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 769 | }; |
70db7533 | 770 | |
7c50391f NK |
771 | if (symbol_conf.cumulate_callchain) |
772 | iter.ops = &hist_iter_cumulative; | |
773 | else | |
774 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 775 | |
4ea062ed | 776 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 777 | |
063bd936 | 778 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
779 | if (err < 0) |
780 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 781 | |
4ea062ed | 782 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 783 | } |
ab81f3fd | 784 | |
b91fc39f | 785 | addr_location__put(&al); |
07800601 IM |
786 | } |
787 | ||
1758af10 | 788 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 789 | { |
8d50e5b4 | 790 | struct perf_sample sample; |
7b27509f | 791 | struct perf_evsel *evsel; |
1758af10 | 792 | struct perf_session *session = top->session; |
8115d60c | 793 | union perf_event *event; |
743eb868 | 794 | struct machine *machine; |
5538beca | 795 | int ret; |
07800601 | 796 | |
1758af10 | 797 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 798 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
799 | if (ret) { |
800 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 801 | goto next_event; |
5538beca | 802 | } |
04391deb | 803 | |
1758af10 | 804 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
805 | assert(evsel != NULL); |
806 | ||
5b2bb75a | 807 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 808 | ++top->samples; |
743eb868 | 809 | |
473398a2 | 810 | switch (sample.cpumode) { |
743eb868 | 811 | case PERF_RECORD_MISC_USER: |
1758af10 ACM |
812 | ++top->us_samples; |
813 | if (top->hide_user_symbols) | |
8e50d384 | 814 | goto next_event; |
34ba5122 | 815 | machine = &session->machines.host; |
743eb868 ACM |
816 | break; |
817 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
818 | ++top->kernel_samples; |
819 | if (top->hide_kernel_symbols) | |
8e50d384 | 820 | goto next_event; |
34ba5122 | 821 | machine = &session->machines.host; |
743eb868 ACM |
822 | break; |
823 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 824 | ++top->guest_kernel_samples; |
ef89325f AH |
825 | machine = perf_session__find_machine(session, |
826 | sample.pid); | |
743eb868 ACM |
827 | break; |
828 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 829 | ++top->guest_us_samples; |
743eb868 ACM |
830 | /* |
831 | * TODO: we don't process guest user from host side | |
832 | * except simple counting. | |
833 | */ | |
8e50d384 | 834 | goto next_event; |
4b37af59 NK |
835 | default: |
836 | if (event->header.type == PERF_RECORD_SAMPLE) | |
837 | goto next_event; | |
838 | machine = &session->machines.host; | |
839 | break; | |
743eb868 ACM |
840 | } |
841 | ||
842 | ||
1758af10 ACM |
843 | if (event->header.type == PERF_RECORD_SAMPLE) { |
844 | perf_event__process_sample(&top->tool, event, evsel, | |
845 | &sample, machine); | |
846 | } else if (event->header.type < PERF_RECORD_MAX) { | |
4ea062ed | 847 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); |
162f0bef | 848 | machine__process_event(machine, event, &sample); |
7b27509f | 849 | } else |
75be989a | 850 | ++session->evlist->stats.nr_unknown_events; |
8e50d384 ZZ |
851 | next_event: |
852 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 853 | } |
07800601 IM |
854 | } |
855 | ||
1758af10 | 856 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 857 | { |
70db7533 ACM |
858 | int i; |
859 | ||
1758af10 ACM |
860 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
861 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
862 | } |
863 | ||
11859e82 | 864 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 865 | { |
d6195a6a | 866 | char msg[BUFSIZ]; |
6a4bb04c | 867 | struct perf_evsel *counter; |
1758af10 | 868 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 869 | struct record_opts *opts = &top->record_opts; |
727ab04e | 870 | |
e68ae9cf | 871 | perf_evlist__config(evlist, opts, &callchain_param); |
7e4ff9e3 | 872 | |
e5cadb93 | 873 | evlist__for_each_entry(evlist, counter) { |
72cb7013 | 874 | try_again: |
1758af10 | 875 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 876 | top->evlist->threads) < 0) { |
56e52e85 | 877 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
bb963e16 | 878 | if (verbose > 0) |
c0a54341 | 879 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
880 | goto try_again; |
881 | } | |
c286c419 | 882 | |
56e52e85 ACM |
883 | perf_evsel__open_strerror(counter, &opts->target, |
884 | errno, msg, sizeof(msg)); | |
885 | ui__error("%s\n", msg); | |
c286c419 | 886 | goto out_err; |
d6d901c2 | 887 | } |
716c69fe | 888 | } |
70db7533 | 889 | |
2376c67a | 890 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 891 | ui__error("Failed to mmap with %d (%s)\n", |
c8b5f2c9 | 892 | errno, str_error_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
893 | goto out_err; |
894 | } | |
895 | ||
11859e82 | 896 | return 0; |
c286c419 ACM |
897 | |
898 | out_err: | |
11859e82 | 899 | return -1; |
716c69fe IM |
900 | } |
901 | ||
e3815264 | 902 | static int callchain_param__setup_sample_type(struct callchain_param *callchain) |
19d4ac3c | 903 | { |
2e0453af | 904 | if (!perf_hpp_list.sym) { |
e3815264 | 905 | if (callchain->enabled) { |
3780f488 | 906 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
907 | return -EINVAL; |
908 | } | |
e3815264 ACM |
909 | } else if (callchain->mode != CHAIN_NONE) { |
910 | if (callchain_register_param(callchain) < 0) { | |
3780f488 | 911 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
912 | return -EINVAL; |
913 | } | |
914 | } | |
915 | ||
916 | return 0; | |
917 | } | |
918 | ||
1758af10 | 919 | static int __cmd_top(struct perf_top *top) |
716c69fe | 920 | { |
5d8bb1ec MP |
921 | char msg[512]; |
922 | struct perf_evsel *pos; | |
923 | struct perf_evsel_config_term *err_term; | |
924 | struct perf_evlist *evlist = top->evlist; | |
b4006796 | 925 | struct record_opts *opts = &top->record_opts; |
716c69fe | 926 | pthread_t thread; |
19d4ac3c | 927 | int ret; |
f5fc1412 | 928 | |
6a4d98d7 | 929 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 930 | if (top->session == NULL) |
52e02834 | 931 | return -1; |
07800601 | 932 | |
0d3942db | 933 | if (!objdump_path) { |
eebd0bfc | 934 | ret = perf_env__lookup_objdump(&top->session->header.env); |
0d3942db SB |
935 | if (ret) |
936 | goto out_delete; | |
937 | } | |
938 | ||
e3815264 | 939 | ret = callchain_param__setup_sample_type(&callchain_param); |
19d4ac3c ACM |
940 | if (ret) |
941 | goto out_delete; | |
942 | ||
9d8b172f | 943 | if (perf_session__register_idle_thread(top->session) < 0) |
c53d138d NK |
944 | goto out_delete; |
945 | ||
a33fbd56 | 946 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
9d9cad76 | 947 | top->evlist->threads, false, opts->proc_map_timeout); |
2e7ea3ab | 948 | |
35a634f7 | 949 | if (perf_hpp_list.socket) { |
2e7ea3ab KL |
950 | ret = perf_env__read_cpu_topology_map(&perf_env); |
951 | if (ret < 0) | |
952 | goto out_err_cpu_topo; | |
953 | } | |
954 | ||
11859e82 ACM |
955 | ret = perf_top__start_counters(top); |
956 | if (ret) | |
957 | goto out_delete; | |
958 | ||
5d8bb1ec MP |
959 | ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term); |
960 | if (ret) { | |
62d94b00 | 961 | pr_err("failed to set config \"%s\" on event %s with %d (%s)\n", |
5d8bb1ec MP |
962 | err_term->val.drv_cfg, perf_evsel__name(pos), errno, |
963 | str_error_r(errno, msg, sizeof(msg))); | |
964 | goto out_delete; | |
965 | } | |
966 | ||
1758af10 | 967 | top->session->evlist = top->evlist; |
7b56cce2 | 968 | perf_session__set_id_hdr_size(top->session); |
07800601 | 969 | |
2376c67a ACM |
970 | /* |
971 | * When perf is starting the traced process, all the events (apart from | |
972 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
973 | * prematurely enabling them. | |
974 | * | |
975 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
976 | * so leave the check here. | |
977 | */ | |
602ad878 | 978 | if (!target__none(&opts->target)) |
2376c67a ACM |
979 | perf_evlist__enable(top->evlist); |
980 | ||
2f01190a | 981 | /* Wait for a minimal set of events before starting the snapshot */ |
f66a889d | 982 | perf_evlist__poll(top->evlist, 100); |
2f01190a | 983 | |
1758af10 | 984 | perf_top__mmap_read(top); |
2f01190a | 985 | |
11859e82 | 986 | ret = -1; |
c0443df1 | 987 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 988 | display_thread), top)) { |
3780f488 | 989 | ui__error("Could not create display thread.\n"); |
11859e82 | 990 | goto out_delete; |
07800601 IM |
991 | } |
992 | ||
1758af10 | 993 | if (top->realtime_prio) { |
07800601 IM |
994 | struct sched_param param; |
995 | ||
1758af10 | 996 | param.sched_priority = top->realtime_prio; |
07800601 | 997 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 998 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 999 | goto out_join; |
07800601 IM |
1000 | } |
1001 | } | |
1002 | ||
11859e82 | 1003 | while (!done) { |
1758af10 | 1004 | u64 hits = top->samples; |
07800601 | 1005 | |
1758af10 | 1006 | perf_top__mmap_read(top); |
07800601 | 1007 | |
1758af10 | 1008 | if (hits == top->samples) |
f66a889d | 1009 | ret = perf_evlist__poll(top->evlist, 100); |
07800601 IM |
1010 | } |
1011 | ||
11859e82 | 1012 | ret = 0; |
ae256fa2 JO |
1013 | out_join: |
1014 | pthread_join(thread, NULL); | |
19d4ac3c | 1015 | out_delete: |
1758af10 ACM |
1016 | perf_session__delete(top->session); |
1017 | top->session = NULL; | |
19d4ac3c | 1018 | |
11859e82 | 1019 | return ret; |
2e7ea3ab KL |
1020 | |
1021 | out_err_cpu_topo: { | |
1022 | char errbuf[BUFSIZ]; | |
c8b5f2c9 | 1023 | const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); |
2e7ea3ab KL |
1024 | |
1025 | ui__error("Could not read the CPU topology map: %s\n", err); | |
1026 | goto out_delete; | |
1027 | } | |
19d4ac3c ACM |
1028 | } |
1029 | ||
1030 | static int | |
ae779a63 | 1031 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1032 | { |
19d4ac3c | 1033 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1034 | return record_callchain_opt(opt, arg, unset); |
1035 | } | |
19d4ac3c | 1036 | |
ae779a63 JO |
1037 | static int |
1038 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1039 | { | |
2ddd5c04 | 1040 | struct callchain_param *callchain = opt->value; |
a2c10d39 | 1041 | |
2ddd5c04 ACM |
1042 | callchain->enabled = !unset; |
1043 | callchain->record_mode = CALLCHAIN_FP; | |
a2c10d39 NK |
1044 | |
1045 | /* | |
1046 | * --no-call-graph | |
1047 | */ | |
1048 | if (unset) { | |
1049 | symbol_conf.use_callchain = false; | |
2ddd5c04 | 1050 | callchain->record_mode = CALLCHAIN_NONE; |
a2c10d39 NK |
1051 | return 0; |
1052 | } | |
1053 | ||
1054 | return parse_callchain_top_opt(arg); | |
07800601 | 1055 | } |
b456bae0 | 1056 | |
b8cbb349 | 1057 | static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) |
eb853e80 | 1058 | { |
eb853e80 | 1059 | if (!strcmp(var, "top.call-graph")) |
5a2e5e85 | 1060 | var = "call-graph.record-mode"; /* fall-through */ |
104ac991 NK |
1061 | if (!strcmp(var, "top.children")) { |
1062 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1063 | return 0; | |
1064 | } | |
eb853e80 | 1065 | |
b8cbb349 | 1066 | return 0; |
eb853e80 JO |
1067 | } |
1068 | ||
fa5df943 NK |
1069 | static int |
1070 | parse_percent_limit(const struct option *opt, const char *arg, | |
1071 | int unset __maybe_unused) | |
1072 | { | |
1073 | struct perf_top *top = opt->value; | |
1074 | ||
1075 | top->min_percent = strtof(arg, NULL); | |
1076 | return 0; | |
1077 | } | |
1078 | ||
76a26549 NK |
1079 | const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP |
1080 | "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; | |
a2c10d39 | 1081 | |
b0ad8ea6 | 1082 | int cmd_top(int argc, const char **argv) |
1758af10 | 1083 | { |
16ad2ffb | 1084 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1085 | struct perf_top top = { |
1086 | .count_filter = 5, | |
1087 | .delay_secs = 2, | |
2376c67a ACM |
1088 | .record_opts = { |
1089 | .mmap_pages = UINT_MAX, | |
1090 | .user_freq = UINT_MAX, | |
1091 | .user_interval = ULLONG_MAX, | |
1092 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1093 | .target = { |
2376c67a ACM |
1094 | .uses_mmap = true, |
1095 | }, | |
9d9cad76 | 1096 | .proc_map_timeout = 500, |
d1cb9fce | 1097 | }, |
4cb93446 | 1098 | .max_stack = sysctl_perf_event_max_stack, |
2376c67a | 1099 | .sym_pcnt_filter = 5, |
1758af10 | 1100 | }; |
b4006796 | 1101 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1102 | struct target *target = &opts->target; |
1758af10 | 1103 | const struct option options[] = { |
8c3e10eb | 1104 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1105 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1106 | parse_events_option), |
2376c67a ACM |
1107 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1108 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1109 | "profile events on existing process id"), |
2376c67a | 1110 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1111 | "profile events on existing thread id"), |
2376c67a | 1112 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1113 | "system-wide collection from all CPUs"), |
2376c67a | 1114 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1115 | "list of cpus to monitor"), |
b32d133a ACM |
1116 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1117 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1118 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1119 | "don't load vmlinux even if found"), | |
8c3e10eb | 1120 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1121 | "hide kernel symbols"), |
994a1f78 JO |
1122 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1123 | "number of mmap data pages", | |
1124 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1125 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1126 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1127 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1128 | "number of seconds to delay between refreshes"), |
1758af10 | 1129 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1130 | "dump the symbol table used for profiling"), |
8c3e10eb | 1131 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1132 | "only display functions with more events than this"), |
bf80669e | 1133 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1134 | "put the counters into a counter group"), |
2376c67a ACM |
1135 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1136 | "child tasks do not inherit counters"), | |
1758af10 | 1137 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1138 | "symbol to annotate"), |
2376c67a ACM |
1139 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1140 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1141 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1142 | "display this many functions"), |
8c3e10eb | 1143 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1144 | "hide user symbols"), |
1758af10 ACM |
1145 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1146 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1147 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1148 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1149 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1150 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1151 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1152 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1153 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1154 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1155 | "Show a column with the number of samples"), | |
2ddd5c04 | 1156 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
a2c10d39 | 1157 | NULL, "enables call-graph recording and display", |
ae779a63 | 1158 | &callchain_opt), |
2ddd5c04 | 1159 | OPT_CALLBACK(0, "call-graph", &callchain_param, |
76a26549 | 1160 | "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", |
a2c10d39 | 1161 | top_callchain_help, &parse_callchain_opt), |
1432ec34 NK |
1162 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1163 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1164 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1165 | "Set the maximum stack depth when parsing the callchain. " | |
4cb93446 | 1166 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
b21484f1 GP |
1167 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1168 | "ignore callees of these functions in call graphs", | |
1169 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1170 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1171 | "Show a column with the sum of periods"), | |
1172 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1173 | "only consider symbols in these dsos"), | |
1174 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1175 | "only consider symbols in these comms"), | |
1176 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1177 | "only consider these symbols"), | |
64c6f0c7 ACM |
1178 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1179 | "Interleave source code with assembly code (default)"), | |
1180 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1181 | "Display raw encoding of assembly instructions (default)"), | |
763122ad AK |
1182 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1183 | "Enable kernel symbol demangling"), | |
0d3942db SB |
1184 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1185 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1186 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1187 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1188 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1189 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1190 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1191 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1192 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1193 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1194 | "width[,width...]", | |
1195 | "don't try to adjust column width, use these fixed values"), | |
9d9cad76 KL |
1196 | OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, |
1197 | "per thread proc mmap processing timeout in ms"), | |
a18b027e AK |
1198 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1199 | "branch any", "sample any taken branches", | |
1200 | parse_branch_stack), | |
1201 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1202 | "branch filter mask", "branch stack filter modes", | |
1203 | parse_branch_stack), | |
053a3989 NK |
1204 | OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
1205 | "Show raw trace event output (do not use print fmt or plugins)"), | |
c92fcfde NK |
1206 | OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
1207 | "Show entries in a hierarchy"), | |
b456bae0 | 1208 | OPT_END() |
1758af10 | 1209 | }; |
be772842 ACM |
1210 | const char * const top_usage[] = { |
1211 | "perf top [<options>]", | |
1212 | NULL | |
1213 | }; | |
a635fc51 ACM |
1214 | int status = hists__init(); |
1215 | ||
1216 | if (status < 0) | |
1217 | return status; | |
b456bae0 | 1218 | |
334fe7a3 | 1219 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1220 | if (top.evlist == NULL) |
361c99a6 ACM |
1221 | return -ENOMEM; |
1222 | ||
ecc4c561 ACM |
1223 | status = perf_config(perf_top_config, &top); |
1224 | if (status) | |
1225 | return status; | |
eb853e80 | 1226 | |
b456bae0 IM |
1227 | argc = parse_options(argc, argv, options, top_usage, 0); |
1228 | if (argc) | |
1229 | usage_with_options(top_usage, options); | |
1230 | ||
54f8f403 NK |
1231 | if (!top.evlist->nr_entries && |
1232 | perf_evlist__add_default(top.evlist) < 0) { | |
1233 | pr_err("Not enough memory for event selector list\n"); | |
1234 | goto out_delete_evlist; | |
1235 | } | |
1236 | ||
c92fcfde NK |
1237 | if (symbol_conf.report_hierarchy) { |
1238 | /* disable incompatible options */ | |
1239 | symbol_conf.event_group = false; | |
1240 | symbol_conf.cumulate_callchain = false; | |
1241 | ||
1242 | if (field_order) { | |
1243 | pr_err("Error: --hierarchy and --fields options cannot be used together\n"); | |
1244 | parse_options_usage(top_usage, options, "fields", 0); | |
1245 | parse_options_usage(NULL, options, "hierarchy", 0); | |
1246 | goto out_delete_evlist; | |
1247 | } | |
1248 | } | |
1249 | ||
512ae1bd | 1250 | sort__mode = SORT_MODE__TOP; |
6fe8c26d | 1251 | /* display thread wants entries to be collapsed in a different tree */ |
52225036 | 1252 | perf_hpp_list.need_collapse = 1; |
ab81f3fd | 1253 | |
3ee60c3b ACM |
1254 | if (top.use_stdio) |
1255 | use_browser = 0; | |
1256 | else if (top.use_tui) | |
1257 | use_browser = 1; | |
1258 | ||
1259 | setup_browser(false); | |
1260 | ||
40184c46 | 1261 | if (setup_sorting(top.evlist) < 0) { |
6fe8c26d NK |
1262 | if (sort_order) |
1263 | parse_options_usage(top_usage, options, "s", 1); | |
1264 | if (field_order) | |
1265 | parse_options_usage(sort_order ? NULL : top_usage, | |
1266 | options, "fields", 0); | |
d37a92dc NK |
1267 | goto out_delete_evlist; |
1268 | } | |
ab81f3fd | 1269 | |
602ad878 | 1270 | status = target__validate(target); |
16ad2ffb | 1271 | if (status) { |
602ad878 | 1272 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1273 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1274 | } |
1275 | ||
602ad878 | 1276 | status = target__parse_uid(target); |
16ad2ffb NK |
1277 | if (status) { |
1278 | int saved_errno = errno; | |
4bd0f2d2 | 1279 | |
602ad878 | 1280 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1281 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1282 | |
1283 | status = -saved_errno; | |
0d37aa34 | 1284 | goto out_delete_evlist; |
16ad2ffb | 1285 | } |
0d37aa34 | 1286 | |
602ad878 | 1287 | if (target__none(target)) |
2376c67a | 1288 | target->system_wide = true; |
10b47d54 | 1289 | |
f8a5c0b2 ACM |
1290 | if (perf_evlist__create_maps(top.evlist, target) < 0) { |
1291 | ui__error("Couldn't create thread/CPU maps: %s\n", | |
c8b5f2c9 | 1292 | errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); |
f8a5c0b2 | 1293 | goto out_delete_evlist; |
69aad6f1 | 1294 | } |
5a8e5a30 | 1295 | |
d04b35f8 ACM |
1296 | symbol_conf.nr_events = top.evlist->nr_entries; |
1297 | ||
8c3e10eb ACM |
1298 | if (top.delay_secs < 1) |
1299 | top.delay_secs = 1; | |
2f335a02 | 1300 | |
b4006796 | 1301 | if (record_opts__config(opts)) { |
2376c67a | 1302 | status = -EINVAL; |
03ad9747 | 1303 | goto out_delete_evlist; |
69aad6f1 ACM |
1304 | } |
1305 | ||
0c21f736 | 1306 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1307 | |
e3815264 | 1308 | if (!callchain_param.enabled) { |
1432ec34 NK |
1309 | symbol_conf.cumulate_callchain = false; |
1310 | perf_hpp__cancel_cumulate(); | |
1311 | } | |
1312 | ||
792aeafa NK |
1313 | if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
1314 | callchain_param.order = ORDER_CALLER; | |
1315 | ||
b01141f4 ACM |
1316 | status = symbol__annotation_init(); |
1317 | if (status < 0) | |
1318 | goto out_delete_evlist; | |
69aad6f1 ACM |
1319 | |
1320 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
0a7e6d1b | 1321 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1322 | return -1; |
1323 | ||
08e71542 | 1324 | sort__setup_elide(stdout); |
ab81f3fd | 1325 | |
1758af10 | 1326 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1327 | if (top.print_entries == 0) { |
1758af10 ACM |
1328 | struct sigaction act = { |
1329 | .sa_sigaction = perf_top__sig_winch, | |
1330 | .sa_flags = SA_SIGINFO, | |
1331 | }; | |
1332 | perf_top__update_print_entries(&top); | |
1333 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1334 | } |
1335 | ||
1758af10 | 1336 | status = __cmd_top(&top); |
806fb630 | 1337 | |
0d37aa34 | 1338 | out_delete_evlist: |
8c3e10eb | 1339 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1340 | |
1341 | return status; | |
b456bae0 | 1342 | } |