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 | |
69fb09f6 | 137 | err = symbol__disassemble(sym, map, NULL, 0, NULL, 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, | |
bab89f6a | 186 | struct perf_sample *sample, |
1758af10 | 187 | int counter, u64 ip) |
923c42c1 | 188 | { |
ce6f4fab | 189 | struct annotation *notes; |
beefb8d0 | 190 | struct symbol *sym = he->ms.sym; |
48c65bda | 191 | int err = 0; |
ce6f4fab | 192 | |
beefb8d0 NK |
193 | if (sym == NULL || (use_browser == 0 && |
194 | (top->sym_filter_entry == NULL || | |
195 | top->sym_filter_entry->ms.sym != sym))) | |
923c42c1 MG |
196 | return; |
197 | ||
ce6f4fab ACM |
198 | notes = symbol__annotation(sym); |
199 | ||
200 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
201 | return; |
202 | ||
bab89f6a | 203 | err = hist_entry__inc_addr_samples(he, sample, counter, ip); |
c7ad21af | 204 | |
ce6f4fab | 205 | pthread_mutex_unlock(¬es->lock); |
31d68e7b | 206 | |
151ee834 NK |
207 | if (unlikely(err)) { |
208 | /* | |
209 | * This function is now called with he->hists->lock held. | |
210 | * Release it before going to sleep. | |
211 | */ | |
212 | pthread_mutex_unlock(&he->hists->lock); | |
213 | ||
214 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
215 | ui__warn_map_erange(he->ms.map, sym, ip); | |
216 | else if (err == -ENOMEM) { | |
217 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
218 | sym->name); | |
219 | sleep(1); | |
220 | } | |
221 | ||
222 | pthread_mutex_lock(&he->hists->lock); | |
b66d8c0c | 223 | } |
923c42c1 MG |
224 | } |
225 | ||
1758af10 | 226 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 227 | { |
1758af10 | 228 | struct hist_entry *he = top->sym_filter_entry; |
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 | ||
241 | if (notes->src == NULL) | |
242 | goto out_unlock; | |
923c42c1 | 243 | |
7289f83c | 244 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 245 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 246 | |
db8fd07a | 247 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 | 248 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
5d484f99 ACM |
249 | |
250 | if (top->evlist->enabled) { | |
251 | if (top->zero) | |
252 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
253 | else | |
254 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
255 | } | |
36532461 | 256 | if (more != 0) |
923c42c1 | 257 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
258 | out_unlock: |
259 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 260 | } |
07800601 | 261 | |
1758af10 | 262 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 263 | { |
8c3e10eb ACM |
264 | char bf[160]; |
265 | int printed = 0; | |
1758af10 | 266 | const int win_width = top->winsize.ws_col - 1; |
452ce03b JO |
267 | struct perf_evsel *evsel = top->sym_evsel; |
268 | struct hists *hists = evsel__hists(evsel); | |
d94b9430 | 269 | |
0f5486b5 | 270 | puts(CONSOLE_CLEAR); |
07800601 | 271 | |
1758af10 | 272 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 273 | printf("%s\n", bf); |
07800601 | 274 | |
1758af10 | 275 | perf_top__reset_sample_counters(top); |
07800601 | 276 | |
1a105f74 | 277 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 278 | |
4ea062ed ACM |
279 | if (hists->stats.nr_lost_warned != |
280 | hists->stats.nr_events[PERF_RECORD_LOST]) { | |
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, |
d05e3aae | 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 | |
1758af10 | 407 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
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, |
1a72cfa6 | 412 | "\t[K] hide kernel_symbols 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) { | |
476 | struct sigaction act = { | |
477 | .sa_sigaction = perf_top__sig_winch, | |
478 | .sa_flags = SA_SIGINFO, | |
479 | }; | |
480 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
481 | sigaction(SIGWINCH, &act, NULL); | |
509605db | 482 | } else { |
3b6ed988 | 483 | signal(SIGWINCH, SIG_DFL); |
509605db | 484 | } |
923c42c1 MG |
485 | break; |
486 | case 'E': | |
1758af10 | 487 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
488 | /* Select 0 as the default event: */ |
489 | int counter = 0; | |
490 | ||
923c42c1 | 491 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 492 | |
e5cadb93 | 493 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
7289f83c | 494 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 495 | |
ec52d976 | 496 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 497 | |
1758af10 | 498 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 499 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 500 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 501 | sleep(1); |
69aad6f1 | 502 | break; |
923c42c1 | 503 | } |
e5cadb93 | 504 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
1758af10 | 505 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 506 | break; |
ec52d976 | 507 | } else |
0c21f736 | 508 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
509 | break; |
510 | case 'f': | |
1758af10 | 511 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
512 | break; |
513 | case 'F': | |
1758af10 ACM |
514 | prompt_percent(&top->sym_pcnt_filter, |
515 | "Enter details display event filter (percent)"); | |
923c42c1 | 516 | break; |
8ffcda17 | 517 | case 'K': |
1758af10 | 518 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 519 | break; |
923c42c1 MG |
520 | case 'q': |
521 | case 'Q': | |
522 | printf("exiting.\n"); | |
1758af10 ACM |
523 | if (top->dump_symtab) |
524 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
525 | ret = false; |
526 | break; | |
923c42c1 | 527 | case 's': |
1758af10 | 528 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
529 | break; |
530 | case 'S': | |
1758af10 | 531 | if (!top->sym_filter_entry) |
923c42c1 MG |
532 | break; |
533 | else { | |
1758af10 | 534 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 535 | |
1758af10 | 536 | top->sym_filter_entry = NULL; |
923c42c1 | 537 | __zero_source_counters(syme); |
923c42c1 MG |
538 | } |
539 | break; | |
8ffcda17 | 540 | case 'U': |
1758af10 | 541 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 542 | break; |
923c42c1 | 543 | case 'z': |
1758af10 | 544 | top->zero = !top->zero; |
923c42c1 | 545 | break; |
83a0944f IM |
546 | default: |
547 | break; | |
923c42c1 | 548 | } |
11859e82 ACM |
549 | |
550 | return ret; | |
923c42c1 MG |
551 | } |
552 | ||
ab81f3fd ACM |
553 | static void perf_top__sort_new_samples(void *arg) |
554 | { | |
555 | struct perf_top *t = arg; | |
452ce03b | 556 | struct perf_evsel *evsel = t->sym_evsel; |
4ea062ed ACM |
557 | struct hists *hists; |
558 | ||
ab81f3fd ACM |
559 | perf_top__reset_sample_counters(t); |
560 | ||
561 | if (t->evlist->selected != NULL) | |
562 | t->sym_evsel = t->evlist->selected; | |
563 | ||
452ce03b | 564 | hists = evsel__hists(evsel); |
4ea062ed | 565 | |
5d484f99 ACM |
566 | if (t->evlist->enabled) { |
567 | if (t->zero) { | |
568 | hists__delete_entries(hists); | |
569 | } else { | |
570 | hists__decay_entries(hists, t->hide_user_symbols, | |
571 | t->hide_kernel_symbols); | |
572 | } | |
701937bd NK |
573 | } |
574 | ||
4ea062ed | 575 | hists__collapse_resort(hists, NULL); |
452ce03b | 576 | perf_evsel__output_resort(evsel, NULL); |
ab81f3fd ACM |
577 | } |
578 | ||
1758af10 | 579 | static void *display_thread_tui(void *arg) |
c0443df1 | 580 | { |
0d37aa34 | 581 | struct perf_evsel *pos; |
1758af10 | 582 | struct perf_top *top = arg; |
ab81f3fd | 583 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
584 | struct hist_browser_timer hbt = { |
585 | .timer = perf_top__sort_new_samples, | |
586 | .arg = top, | |
587 | .refresh = top->delay_secs, | |
588 | }; | |
ab81f3fd | 589 | |
868a8329 KJ |
590 | /* In order to read symbols from other namespaces perf to needs to call |
591 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
592 | * unshare(2) the fs so that we may continue to setns into namespaces | |
593 | * that we're observing. | |
594 | */ | |
595 | unshare(CLONE_FS); | |
596 | ||
1758af10 | 597 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
598 | |
599 | /* | |
600 | * Initialize the uid_filter_str, in the future the TUI will allow | |
601 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
602 | * via --uid. | |
603 | */ | |
e5cadb93 | 604 | evlist__for_each_entry(top->evlist, pos) { |
4ea062ed ACM |
605 | struct hists *hists = evsel__hists(pos); |
606 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
607 | } | |
0d37aa34 | 608 | |
13d1e536 NK |
609 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
610 | top->min_percent, | |
611 | &top->session->header.env); | |
ab81f3fd | 612 | |
11859e82 | 613 | done = 1; |
c0443df1 ACM |
614 | return NULL; |
615 | } | |
616 | ||
4a1a9971 JO |
617 | static void display_sig(int sig __maybe_unused) |
618 | { | |
619 | done = 1; | |
620 | } | |
621 | ||
622 | static void display_setup_sig(void) | |
623 | { | |
09f4d78a ACM |
624 | signal(SIGSEGV, sighandler_dump_stack); |
625 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
626 | signal(SIGINT, display_sig); |
627 | signal(SIGQUIT, display_sig); | |
628 | signal(SIGTERM, display_sig); | |
629 | } | |
630 | ||
1758af10 | 631 | static void *display_thread(void *arg) |
07800601 | 632 | { |
0f5486b5 | 633 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 634 | struct termios save; |
1758af10 | 635 | struct perf_top *top = arg; |
923c42c1 MG |
636 | int delay_msecs, c; |
637 | ||
868a8329 KJ |
638 | /* In order to read symbols from other namespaces perf to needs to call |
639 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
640 | * unshare(2) the fs so that we may continue to setns into namespaces | |
641 | * that we're observing. | |
642 | */ | |
643 | unshare(CLONE_FS); | |
644 | ||
4a1a9971 | 645 | display_setup_sig(); |
3af6e338 | 646 | pthread__unblock_sigwinch(); |
923c42c1 | 647 | repeat: |
b9c4b0f4 | 648 | delay_msecs = top->delay_secs * MSEC_PER_SEC; |
9398c484 | 649 | set_term_quiet_input(&save); |
923c42c1 MG |
650 | /* trash return*/ |
651 | getc(stdin); | |
07800601 | 652 | |
11859e82 | 653 | while (!done) { |
1758af10 | 654 | perf_top__print_sym_table(top); |
3af6e338 ACM |
655 | /* |
656 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
657 | * refresh screen in both cases. | |
658 | */ | |
659 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
660 | case 0: | |
661 | continue; | |
662 | case -1: | |
663 | if (errno == EINTR) | |
664 | continue; | |
7b0214b7 | 665 | __fallthrough; |
3af6e338 | 666 | default: |
11859e82 ACM |
667 | c = getc(stdin); |
668 | tcsetattr(0, TCSAFLUSH, &save); | |
669 | ||
670 | if (perf_top__handle_keypress(top, c)) | |
671 | goto repeat; | |
672 | done = 1; | |
3af6e338 ACM |
673 | } |
674 | } | |
07800601 | 675 | |
4a1a9971 | 676 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
677 | return NULL; |
678 | } | |
679 | ||
7c50391f NK |
680 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
681 | struct addr_location *al, bool single, | |
682 | void *arg) | |
683 | { | |
684 | struct perf_top *top = arg; | |
685 | struct hist_entry *he = iter->he; | |
686 | struct perf_evsel *evsel = iter->evsel; | |
687 | ||
2e0453af | 688 | if (perf_hpp_list.sym && single) |
bab89f6a | 689 | perf_top__record_precise_ip(top, he, iter->sample, evsel->idx, al->addr); |
7c50391f | 690 | |
a18b027e AK |
691 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
692 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
693 | return 0; |
694 | } | |
695 | ||
1758af10 ACM |
696 | static void perf_event__process_sample(struct perf_tool *tool, |
697 | const union perf_event *event, | |
7b27509f | 698 | struct perf_evsel *evsel, |
8115d60c | 699 | struct perf_sample *sample, |
743eb868 | 700 | struct machine *machine) |
07800601 | 701 | { |
1758af10 | 702 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 703 | struct addr_location al; |
19d4ac3c | 704 | int err; |
5b2bb75a | 705 | |
23346f21 | 706 | if (!machine && perf_guest) { |
6b118e92 DA |
707 | static struct intlist *seen; |
708 | ||
709 | if (!seen) | |
ffe0fb76 | 710 | seen = intlist__new(NULL); |
6b118e92 | 711 | |
ef89325f | 712 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 713 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
714 | sample->pid); |
715 | intlist__add(seen, sample->pid); | |
6b118e92 | 716 | } |
a1645ce1 ZY |
717 | return; |
718 | } | |
719 | ||
0c095715 | 720 | if (!machine) { |
11859e82 | 721 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 722 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
723 | return; |
724 | } | |
725 | ||
8115d60c | 726 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 727 | top->exact_samples++; |
1676b8a0 | 728 | |
bb3eb566 | 729 | if (machine__resolve(machine, &al, sample) < 0) |
1ed091c4 | 730 | return; |
07800601 | 731 | |
e77a0742 | 732 | if (!machine->kptr_restrict_warned && |
5f6f5580 ACM |
733 | symbol_conf.kptr_restrict && |
734 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
735 | ui__warning( | |
736 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
737 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
738 | "Kernel%s samples will not be resolved.\n", | |
c6718350 | 739 | al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? |
5f6f5580 ACM |
740 | " modules" : ""); |
741 | if (use_browser <= 0) | |
742 | sleep(5); | |
e77a0742 | 743 | machine->kptr_restrict_warned = true; |
5f6f5580 ACM |
744 | } |
745 | ||
72b8fa17 | 746 | if (al.sym == NULL) { |
e4a338d0 | 747 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
748 | /* |
749 | * As we do lazy loading of symtabs we only will know if the | |
750 | * specified vmlinux file is invalid when we actually have a | |
751 | * hit in kernel space and then try to load it. So if we get | |
752 | * here and there are _no_ symbols in the DSO backing the | |
753 | * kernel map, bail out. | |
754 | * | |
755 | * We may never get here, for instance, if we use -K/ | |
756 | * --hide-kernel-symbols, even if the user specifies an | |
757 | * invalid --vmlinux ;-) | |
758 | */ | |
e77a0742 | 759 | if (!machine->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 760 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 761 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 | 762 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
763 | char serr[256]; |
764 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
765 | ui__warning("The %s file can't be used: %s\n%s", | |
766 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
767 | } else { |
768 | ui__warning("A vmlinux file was not found.\n%s", | |
769 | msg); | |
770 | } | |
771 | ||
772 | if (use_browser <= 0) | |
773 | sleep(5); | |
1758af10 | 774 | top->vmlinux_warned = true; |
72b8fa17 | 775 | } |
6cff0e8d KS |
776 | } |
777 | ||
b55cc4ed | 778 | if (al.sym == NULL || !al.sym->idle) { |
4ea062ed | 779 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 780 | struct hist_entry_iter iter = { |
063bd936 NK |
781 | .evsel = evsel, |
782 | .sample = sample, | |
783 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 784 | }; |
70db7533 | 785 | |
7c50391f NK |
786 | if (symbol_conf.cumulate_callchain) |
787 | iter.ops = &hist_iter_cumulative; | |
788 | else | |
789 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 790 | |
4ea062ed | 791 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 792 | |
063bd936 | 793 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
794 | if (err < 0) |
795 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 796 | |
4ea062ed | 797 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 798 | } |
ab81f3fd | 799 | |
b91fc39f | 800 | addr_location__put(&al); |
07800601 IM |
801 | } |
802 | ||
1758af10 | 803 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 804 | { |
8d50e5b4 | 805 | struct perf_sample sample; |
7b27509f | 806 | struct perf_evsel *evsel; |
1758af10 | 807 | struct perf_session *session = top->session; |
8115d60c | 808 | union perf_event *event; |
743eb868 | 809 | struct machine *machine; |
5538beca | 810 | int ret; |
07800601 | 811 | |
1758af10 | 812 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 813 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
814 | if (ret) { |
815 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 816 | goto next_event; |
5538beca | 817 | } |
04391deb | 818 | |
1758af10 | 819 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
820 | assert(evsel != NULL); |
821 | ||
5b2bb75a | 822 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 823 | ++top->samples; |
743eb868 | 824 | |
473398a2 | 825 | switch (sample.cpumode) { |
743eb868 | 826 | case PERF_RECORD_MISC_USER: |
1758af10 ACM |
827 | ++top->us_samples; |
828 | if (top->hide_user_symbols) | |
8e50d384 | 829 | goto next_event; |
34ba5122 | 830 | machine = &session->machines.host; |
743eb868 ACM |
831 | break; |
832 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
833 | ++top->kernel_samples; |
834 | if (top->hide_kernel_symbols) | |
8e50d384 | 835 | goto next_event; |
34ba5122 | 836 | machine = &session->machines.host; |
743eb868 ACM |
837 | break; |
838 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 839 | ++top->guest_kernel_samples; |
ef89325f AH |
840 | machine = perf_session__find_machine(session, |
841 | sample.pid); | |
743eb868 ACM |
842 | break; |
843 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 844 | ++top->guest_us_samples; |
743eb868 ACM |
845 | /* |
846 | * TODO: we don't process guest user from host side | |
847 | * except simple counting. | |
848 | */ | |
8e50d384 | 849 | goto next_event; |
4b37af59 NK |
850 | default: |
851 | if (event->header.type == PERF_RECORD_SAMPLE) | |
852 | goto next_event; | |
853 | machine = &session->machines.host; | |
854 | break; | |
743eb868 ACM |
855 | } |
856 | ||
857 | ||
1758af10 ACM |
858 | if (event->header.type == PERF_RECORD_SAMPLE) { |
859 | perf_event__process_sample(&top->tool, event, evsel, | |
860 | &sample, machine); | |
861 | } else if (event->header.type < PERF_RECORD_MAX) { | |
4ea062ed | 862 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); |
162f0bef | 863 | machine__process_event(machine, event, &sample); |
7b27509f | 864 | } else |
75be989a | 865 | ++session->evlist->stats.nr_unknown_events; |
8e50d384 ZZ |
866 | next_event: |
867 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 868 | } |
07800601 IM |
869 | } |
870 | ||
1758af10 | 871 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 872 | { |
70db7533 ACM |
873 | int i; |
874 | ||
1758af10 ACM |
875 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
876 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
877 | } |
878 | ||
11859e82 | 879 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 880 | { |
d6195a6a | 881 | char msg[BUFSIZ]; |
6a4bb04c | 882 | struct perf_evsel *counter; |
1758af10 | 883 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 884 | struct record_opts *opts = &top->record_opts; |
727ab04e | 885 | |
e68ae9cf | 886 | perf_evlist__config(evlist, opts, &callchain_param); |
7e4ff9e3 | 887 | |
e5cadb93 | 888 | evlist__for_each_entry(evlist, counter) { |
72cb7013 | 889 | try_again: |
1758af10 | 890 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 891 | top->evlist->threads) < 0) { |
56e52e85 | 892 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
bb963e16 | 893 | if (verbose > 0) |
c0a54341 | 894 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
895 | goto try_again; |
896 | } | |
c286c419 | 897 | |
56e52e85 ACM |
898 | perf_evsel__open_strerror(counter, &opts->target, |
899 | errno, msg, sizeof(msg)); | |
900 | ui__error("%s\n", msg); | |
c286c419 | 901 | goto out_err; |
d6d901c2 | 902 | } |
716c69fe | 903 | } |
70db7533 | 904 | |
2376c67a | 905 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 906 | ui__error("Failed to mmap with %d (%s)\n", |
c8b5f2c9 | 907 | errno, str_error_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
908 | goto out_err; |
909 | } | |
910 | ||
11859e82 | 911 | return 0; |
c286c419 ACM |
912 | |
913 | out_err: | |
11859e82 | 914 | return -1; |
716c69fe IM |
915 | } |
916 | ||
e3815264 | 917 | static int callchain_param__setup_sample_type(struct callchain_param *callchain) |
19d4ac3c | 918 | { |
2e0453af | 919 | if (!perf_hpp_list.sym) { |
e3815264 | 920 | if (callchain->enabled) { |
3780f488 | 921 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
922 | return -EINVAL; |
923 | } | |
e3815264 ACM |
924 | } else if (callchain->mode != CHAIN_NONE) { |
925 | if (callchain_register_param(callchain) < 0) { | |
3780f488 | 926 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
927 | return -EINVAL; |
928 | } | |
929 | } | |
930 | ||
931 | return 0; | |
932 | } | |
933 | ||
1758af10 | 934 | static int __cmd_top(struct perf_top *top) |
716c69fe | 935 | { |
5d8bb1ec MP |
936 | char msg[512]; |
937 | struct perf_evsel *pos; | |
938 | struct perf_evsel_config_term *err_term; | |
939 | struct perf_evlist *evlist = top->evlist; | |
b4006796 | 940 | struct record_opts *opts = &top->record_opts; |
716c69fe | 941 | pthread_t thread; |
19d4ac3c | 942 | int ret; |
f5fc1412 | 943 | |
6a4d98d7 | 944 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 945 | if (top->session == NULL) |
52e02834 | 946 | return -1; |
07800601 | 947 | |
0d3942db | 948 | if (!objdump_path) { |
eebd0bfc | 949 | ret = perf_env__lookup_objdump(&top->session->header.env); |
0d3942db SB |
950 | if (ret) |
951 | goto out_delete; | |
952 | } | |
953 | ||
e3815264 | 954 | ret = callchain_param__setup_sample_type(&callchain_param); |
19d4ac3c ACM |
955 | if (ret) |
956 | goto out_delete; | |
957 | ||
9d8b172f | 958 | if (perf_session__register_idle_thread(top->session) < 0) |
c53d138d NK |
959 | goto out_delete; |
960 | ||
a33fbd56 | 961 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
9d9cad76 | 962 | top->evlist->threads, false, opts->proc_map_timeout); |
2e7ea3ab | 963 | |
35a634f7 | 964 | if (perf_hpp_list.socket) { |
2e7ea3ab KL |
965 | ret = perf_env__read_cpu_topology_map(&perf_env); |
966 | if (ret < 0) | |
967 | goto out_err_cpu_topo; | |
968 | } | |
969 | ||
11859e82 ACM |
970 | ret = perf_top__start_counters(top); |
971 | if (ret) | |
972 | goto out_delete; | |
973 | ||
5d8bb1ec MP |
974 | ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term); |
975 | if (ret) { | |
62d94b00 | 976 | pr_err("failed to set config \"%s\" on event %s with %d (%s)\n", |
5d8bb1ec MP |
977 | err_term->val.drv_cfg, perf_evsel__name(pos), errno, |
978 | str_error_r(errno, msg, sizeof(msg))); | |
979 | goto out_delete; | |
980 | } | |
981 | ||
1758af10 | 982 | top->session->evlist = top->evlist; |
7b56cce2 | 983 | perf_session__set_id_hdr_size(top->session); |
07800601 | 984 | |
2376c67a ACM |
985 | /* |
986 | * When perf is starting the traced process, all the events (apart from | |
987 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
988 | * prematurely enabling them. | |
989 | * | |
990 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
991 | * so leave the check here. | |
992 | */ | |
602ad878 | 993 | if (!target__none(&opts->target)) |
2376c67a ACM |
994 | perf_evlist__enable(top->evlist); |
995 | ||
2f01190a | 996 | /* Wait for a minimal set of events before starting the snapshot */ |
f66a889d | 997 | perf_evlist__poll(top->evlist, 100); |
2f01190a | 998 | |
1758af10 | 999 | perf_top__mmap_read(top); |
2f01190a | 1000 | |
11859e82 | 1001 | ret = -1; |
c0443df1 | 1002 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 1003 | display_thread), top)) { |
3780f488 | 1004 | ui__error("Could not create display thread.\n"); |
11859e82 | 1005 | goto out_delete; |
07800601 IM |
1006 | } |
1007 | ||
1758af10 | 1008 | if (top->realtime_prio) { |
07800601 IM |
1009 | struct sched_param param; |
1010 | ||
1758af10 | 1011 | param.sched_priority = top->realtime_prio; |
07800601 | 1012 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 1013 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 1014 | goto out_join; |
07800601 IM |
1015 | } |
1016 | } | |
1017 | ||
11859e82 | 1018 | while (!done) { |
1758af10 | 1019 | u64 hits = top->samples; |
07800601 | 1020 | |
1758af10 | 1021 | perf_top__mmap_read(top); |
07800601 | 1022 | |
1758af10 | 1023 | if (hits == top->samples) |
f66a889d | 1024 | ret = perf_evlist__poll(top->evlist, 100); |
07800601 IM |
1025 | } |
1026 | ||
11859e82 | 1027 | ret = 0; |
ae256fa2 JO |
1028 | out_join: |
1029 | pthread_join(thread, NULL); | |
19d4ac3c | 1030 | out_delete: |
1758af10 ACM |
1031 | perf_session__delete(top->session); |
1032 | top->session = NULL; | |
19d4ac3c | 1033 | |
11859e82 | 1034 | return ret; |
2e7ea3ab KL |
1035 | |
1036 | out_err_cpu_topo: { | |
1037 | char errbuf[BUFSIZ]; | |
c8b5f2c9 | 1038 | const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); |
2e7ea3ab KL |
1039 | |
1040 | ui__error("Could not read the CPU topology map: %s\n", err); | |
1041 | goto out_delete; | |
1042 | } | |
19d4ac3c ACM |
1043 | } |
1044 | ||
1045 | static int | |
ae779a63 | 1046 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1047 | { |
19d4ac3c | 1048 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1049 | return record_callchain_opt(opt, arg, unset); |
1050 | } | |
19d4ac3c | 1051 | |
ae779a63 JO |
1052 | static int |
1053 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1054 | { | |
2ddd5c04 | 1055 | struct callchain_param *callchain = opt->value; |
a2c10d39 | 1056 | |
2ddd5c04 ACM |
1057 | callchain->enabled = !unset; |
1058 | callchain->record_mode = CALLCHAIN_FP; | |
a2c10d39 NK |
1059 | |
1060 | /* | |
1061 | * --no-call-graph | |
1062 | */ | |
1063 | if (unset) { | |
1064 | symbol_conf.use_callchain = false; | |
2ddd5c04 | 1065 | callchain->record_mode = CALLCHAIN_NONE; |
a2c10d39 NK |
1066 | return 0; |
1067 | } | |
1068 | ||
1069 | return parse_callchain_top_opt(arg); | |
07800601 | 1070 | } |
b456bae0 | 1071 | |
b8cbb349 | 1072 | static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) |
eb853e80 | 1073 | { |
eb853e80 | 1074 | if (!strcmp(var, "top.call-graph")) |
5a2e5e85 | 1075 | var = "call-graph.record-mode"; /* fall-through */ |
104ac991 NK |
1076 | if (!strcmp(var, "top.children")) { |
1077 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1078 | return 0; | |
1079 | } | |
eb853e80 | 1080 | |
b8cbb349 | 1081 | return 0; |
eb853e80 JO |
1082 | } |
1083 | ||
fa5df943 NK |
1084 | static int |
1085 | parse_percent_limit(const struct option *opt, const char *arg, | |
1086 | int unset __maybe_unused) | |
1087 | { | |
1088 | struct perf_top *top = opt->value; | |
1089 | ||
1090 | top->min_percent = strtof(arg, NULL); | |
1091 | return 0; | |
1092 | } | |
1093 | ||
76a26549 NK |
1094 | const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP |
1095 | "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; | |
a2c10d39 | 1096 | |
b0ad8ea6 | 1097 | int cmd_top(int argc, const char **argv) |
1758af10 | 1098 | { |
16ad2ffb | 1099 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1100 | struct perf_top top = { |
1101 | .count_filter = 5, | |
1102 | .delay_secs = 2, | |
2376c67a ACM |
1103 | .record_opts = { |
1104 | .mmap_pages = UINT_MAX, | |
1105 | .user_freq = UINT_MAX, | |
1106 | .user_interval = ULLONG_MAX, | |
1107 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1108 | .target = { |
2376c67a ACM |
1109 | .uses_mmap = true, |
1110 | }, | |
9d9cad76 | 1111 | .proc_map_timeout = 500, |
d1cb9fce | 1112 | }, |
4cb93446 | 1113 | .max_stack = sysctl_perf_event_max_stack, |
2376c67a | 1114 | .sym_pcnt_filter = 5, |
1758af10 | 1115 | }; |
b4006796 | 1116 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1117 | struct target *target = &opts->target; |
1758af10 | 1118 | const struct option options[] = { |
8c3e10eb | 1119 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1120 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1121 | parse_events_option), |
2376c67a ACM |
1122 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1123 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1124 | "profile events on existing process id"), |
2376c67a | 1125 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1126 | "profile events on existing thread id"), |
2376c67a | 1127 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1128 | "system-wide collection from all CPUs"), |
2376c67a | 1129 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1130 | "list of cpus to monitor"), |
b32d133a ACM |
1131 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1132 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1133 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1134 | "don't load vmlinux even if found"), | |
8c3e10eb | 1135 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1136 | "hide kernel symbols"), |
994a1f78 JO |
1137 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1138 | "number of mmap data pages", | |
1139 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1140 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1141 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1142 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1143 | "number of seconds to delay between refreshes"), |
1758af10 | 1144 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1145 | "dump the symbol table used for profiling"), |
8c3e10eb | 1146 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1147 | "only display functions with more events than this"), |
bf80669e | 1148 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1149 | "put the counters into a counter group"), |
2376c67a ACM |
1150 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1151 | "child tasks do not inherit counters"), | |
1758af10 | 1152 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1153 | "symbol to annotate"), |
2376c67a ACM |
1154 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1155 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1156 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1157 | "display this many functions"), |
8c3e10eb | 1158 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1159 | "hide user symbols"), |
1758af10 ACM |
1160 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1161 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1162 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1163 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1164 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1165 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1166 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1167 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1168 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1169 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1170 | "Show a column with the number of samples"), | |
2ddd5c04 | 1171 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
a2c10d39 | 1172 | NULL, "enables call-graph recording and display", |
ae779a63 | 1173 | &callchain_opt), |
2ddd5c04 | 1174 | OPT_CALLBACK(0, "call-graph", &callchain_param, |
76a26549 | 1175 | "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", |
a2c10d39 | 1176 | top_callchain_help, &parse_callchain_opt), |
1432ec34 NK |
1177 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1178 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1179 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1180 | "Set the maximum stack depth when parsing the callchain. " | |
4cb93446 | 1181 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
b21484f1 GP |
1182 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1183 | "ignore callees of these functions in call graphs", | |
1184 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1185 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1186 | "Show a column with the sum of periods"), | |
1187 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1188 | "only consider symbols in these dsos"), | |
1189 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1190 | "only consider symbols in these comms"), | |
1191 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1192 | "only consider these symbols"), | |
64c6f0c7 ACM |
1193 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1194 | "Interleave source code with assembly code (default)"), | |
1195 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1196 | "Display raw encoding of assembly instructions (default)"), | |
763122ad AK |
1197 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1198 | "Enable kernel symbol demangling"), | |
0d3942db SB |
1199 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1200 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1201 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1202 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1203 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1204 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1205 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1206 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1207 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1208 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1209 | "width[,width...]", | |
1210 | "don't try to adjust column width, use these fixed values"), | |
9d9cad76 KL |
1211 | OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, |
1212 | "per thread proc mmap processing timeout in ms"), | |
a18b027e AK |
1213 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1214 | "branch any", "sample any taken branches", | |
1215 | parse_branch_stack), | |
1216 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1217 | "branch filter mask", "branch stack filter modes", | |
1218 | parse_branch_stack), | |
053a3989 NK |
1219 | OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
1220 | "Show raw trace event output (do not use print fmt or plugins)"), | |
c92fcfde NK |
1221 | OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
1222 | "Show entries in a hierarchy"), | |
868a8329 | 1223 | OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), |
b456bae0 | 1224 | OPT_END() |
1758af10 | 1225 | }; |
be772842 ACM |
1226 | const char * const top_usage[] = { |
1227 | "perf top [<options>]", | |
1228 | NULL | |
1229 | }; | |
a635fc51 ACM |
1230 | int status = hists__init(); |
1231 | ||
1232 | if (status < 0) | |
1233 | return status; | |
b456bae0 | 1234 | |
334fe7a3 | 1235 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1236 | if (top.evlist == NULL) |
361c99a6 ACM |
1237 | return -ENOMEM; |
1238 | ||
ecc4c561 ACM |
1239 | status = perf_config(perf_top_config, &top); |
1240 | if (status) | |
1241 | return status; | |
eb853e80 | 1242 | |
b456bae0 IM |
1243 | argc = parse_options(argc, argv, options, top_usage, 0); |
1244 | if (argc) | |
1245 | usage_with_options(top_usage, options); | |
1246 | ||
54f8f403 NK |
1247 | if (!top.evlist->nr_entries && |
1248 | perf_evlist__add_default(top.evlist) < 0) { | |
1249 | pr_err("Not enough memory for event selector list\n"); | |
1250 | goto out_delete_evlist; | |
1251 | } | |
1252 | ||
c92fcfde NK |
1253 | if (symbol_conf.report_hierarchy) { |
1254 | /* disable incompatible options */ | |
1255 | symbol_conf.event_group = false; | |
1256 | symbol_conf.cumulate_callchain = false; | |
1257 | ||
1258 | if (field_order) { | |
1259 | pr_err("Error: --hierarchy and --fields options cannot be used together\n"); | |
1260 | parse_options_usage(top_usage, options, "fields", 0); | |
1261 | parse_options_usage(NULL, options, "hierarchy", 0); | |
1262 | goto out_delete_evlist; | |
1263 | } | |
1264 | } | |
1265 | ||
512ae1bd | 1266 | sort__mode = SORT_MODE__TOP; |
6fe8c26d | 1267 | /* display thread wants entries to be collapsed in a different tree */ |
52225036 | 1268 | perf_hpp_list.need_collapse = 1; |
ab81f3fd | 1269 | |
3ee60c3b ACM |
1270 | if (top.use_stdio) |
1271 | use_browser = 0; | |
1272 | else if (top.use_tui) | |
1273 | use_browser = 1; | |
1274 | ||
1275 | setup_browser(false); | |
1276 | ||
40184c46 | 1277 | if (setup_sorting(top.evlist) < 0) { |
6fe8c26d NK |
1278 | if (sort_order) |
1279 | parse_options_usage(top_usage, options, "s", 1); | |
1280 | if (field_order) | |
1281 | parse_options_usage(sort_order ? NULL : top_usage, | |
1282 | options, "fields", 0); | |
d37a92dc NK |
1283 | goto out_delete_evlist; |
1284 | } | |
ab81f3fd | 1285 | |
602ad878 | 1286 | status = target__validate(target); |
16ad2ffb | 1287 | if (status) { |
602ad878 | 1288 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1289 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1290 | } |
1291 | ||
602ad878 | 1292 | status = target__parse_uid(target); |
16ad2ffb NK |
1293 | if (status) { |
1294 | int saved_errno = errno; | |
4bd0f2d2 | 1295 | |
602ad878 | 1296 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1297 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1298 | |
1299 | status = -saved_errno; | |
0d37aa34 | 1300 | goto out_delete_evlist; |
16ad2ffb | 1301 | } |
0d37aa34 | 1302 | |
602ad878 | 1303 | if (target__none(target)) |
2376c67a | 1304 | target->system_wide = true; |
10b47d54 | 1305 | |
f8a5c0b2 ACM |
1306 | if (perf_evlist__create_maps(top.evlist, target) < 0) { |
1307 | ui__error("Couldn't create thread/CPU maps: %s\n", | |
c8b5f2c9 | 1308 | errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); |
f8a5c0b2 | 1309 | goto out_delete_evlist; |
69aad6f1 | 1310 | } |
5a8e5a30 | 1311 | |
d04b35f8 ACM |
1312 | symbol_conf.nr_events = top.evlist->nr_entries; |
1313 | ||
8c3e10eb ACM |
1314 | if (top.delay_secs < 1) |
1315 | top.delay_secs = 1; | |
2f335a02 | 1316 | |
b4006796 | 1317 | if (record_opts__config(opts)) { |
2376c67a | 1318 | status = -EINVAL; |
03ad9747 | 1319 | goto out_delete_evlist; |
69aad6f1 ACM |
1320 | } |
1321 | ||
0c21f736 | 1322 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1323 | |
e3815264 | 1324 | if (!callchain_param.enabled) { |
1432ec34 NK |
1325 | symbol_conf.cumulate_callchain = false; |
1326 | perf_hpp__cancel_cumulate(); | |
1327 | } | |
1328 | ||
792aeafa NK |
1329 | if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
1330 | callchain_param.order = ORDER_CALLER; | |
1331 | ||
b01141f4 ACM |
1332 | status = symbol__annotation_init(); |
1333 | if (status < 0) | |
1334 | goto out_delete_evlist; | |
69aad6f1 ACM |
1335 | |
1336 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
0a7e6d1b | 1337 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1338 | return -1; |
1339 | ||
08e71542 | 1340 | sort__setup_elide(stdout); |
ab81f3fd | 1341 | |
1758af10 | 1342 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1343 | if (top.print_entries == 0) { |
1758af10 ACM |
1344 | struct sigaction act = { |
1345 | .sa_sigaction = perf_top__sig_winch, | |
1346 | .sa_flags = SA_SIGINFO, | |
1347 | }; | |
1348 | perf_top__update_print_entries(&top); | |
1349 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1350 | } |
1351 | ||
1758af10 | 1352 | status = __cmd_top(&top); |
806fb630 | 1353 | |
0d37aa34 | 1354 | out_delete_evlist: |
8c3e10eb | 1355 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1356 | |
1357 | return status; | |
b456bae0 | 1358 | } |