]>
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 | 79 | static volatile int done; |
89d0aeab | 80 | static volatile int resize; |
11859e82 | 81 | |
933cbb1c NK |
82 | #define HEADER_LINE_NR 5 |
83 | ||
1758af10 | 84 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 85 | { |
933cbb1c | 86 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
87 | } |
88 | ||
bdaab8c4 | 89 | static void winch_sig(int sig __maybe_unused) |
3b6ed988 | 90 | { |
89d0aeab JO |
91 | resize = 1; |
92 | } | |
1758af10 | 93 | |
89d0aeab JO |
94 | static void perf_top__resize(struct perf_top *top) |
95 | { | |
1758af10 ACM |
96 | get_term_dimensions(&top->winsize); |
97 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
98 | } |
99 | ||
1758af10 | 100 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 MG |
101 | { |
102 | struct symbol *sym; | |
ce6f4fab | 103 | struct annotation *notes; |
439d473b | 104 | struct map *map; |
36532461 | 105 | int err = -1; |
923c42c1 | 106 | |
ab81f3fd | 107 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
108 | return -1; |
109 | ||
ab81f3fd ACM |
110 | sym = he->ms.sym; |
111 | map = he->ms.map; | |
b0a9ab62 ACM |
112 | |
113 | /* | |
114 | * We can't annotate with just /proc/kallsyms | |
115 | */ | |
bbb7f846 AH |
116 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
117 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
118 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
119 | "path\n", sym->name); | |
120 | sleep(1); | |
b0a9ab62 | 121 | return -1; |
b269876c ACM |
122 | } |
123 | ||
ce6f4fab ACM |
124 | notes = symbol__annotation(sym); |
125 | if (notes->src != NULL) { | |
126 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
127 | goto out_assign; |
128 | } | |
923c42c1 | 129 | |
ce6f4fab | 130 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 131 | |
d04b35f8 | 132 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 133 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
134 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
135 | sym->name); | |
ce6f4fab | 136 | sleep(1); |
c97cf422 | 137 | return err; |
923c42c1 | 138 | } |
36532461 | 139 | |
69fb09f6 | 140 | err = symbol__disassemble(sym, map, NULL, 0, NULL, NULL); |
36532461 | 141 | if (err == 0) { |
923c42c1 | 142 | out_assign: |
1758af10 | 143 | top->sym_filter_entry = he; |
ee51d851 ACM |
144 | } else { |
145 | char msg[BUFSIZ]; | |
146 | symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); | |
147 | pr_err("Couldn't annotate %s: %s\n", sym->name, msg); | |
36532461 | 148 | } |
c97cf422 | 149 | |
ce6f4fab | 150 | pthread_mutex_unlock(¬es->lock); |
36532461 | 151 | return err; |
923c42c1 MG |
152 | } |
153 | ||
ab81f3fd | 154 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 155 | { |
ab81f3fd | 156 | struct symbol *sym = he->ms.sym; |
36532461 | 157 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
158 | } |
159 | ||
31d68e7b ACM |
160 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
161 | { | |
162 | struct utsname uts; | |
163 | int err = uname(&uts); | |
164 | ||
165 | ui__warning("Out of bounds address found:\n\n" | |
166 | "Addr: %" PRIx64 "\n" | |
167 | "DSO: %s %c\n" | |
168 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
169 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
170 | "Arch: %s\n" | |
171 | "Kernel: %s\n" | |
172 | "Tools: %s\n\n" | |
173 | "Not all samples will be on the annotation output.\n\n" | |
174 | "Please report to linux-kernel@vger.kernel.org\n", | |
175 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
176 | map->start, map->end, sym->start, sym->end, | |
177 | sym->binding == STB_GLOBAL ? 'g' : | |
178 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
179 | err ? "[unknown]" : uts.machine, | |
180 | err ? "[unknown]" : uts.release, perf_version_string); | |
181 | if (use_browser <= 0) | |
182 | sleep(5); | |
48000a1a | 183 | |
31d68e7b ACM |
184 | map->erange_warned = true; |
185 | } | |
186 | ||
1758af10 ACM |
187 | static void perf_top__record_precise_ip(struct perf_top *top, |
188 | struct hist_entry *he, | |
bab89f6a | 189 | struct perf_sample *sample, |
1758af10 | 190 | int counter, u64 ip) |
923c42c1 | 191 | { |
ce6f4fab | 192 | struct annotation *notes; |
beefb8d0 | 193 | struct symbol *sym = he->ms.sym; |
48c65bda | 194 | int err = 0; |
ce6f4fab | 195 | |
beefb8d0 NK |
196 | if (sym == NULL || (use_browser == 0 && |
197 | (top->sym_filter_entry == NULL || | |
198 | top->sym_filter_entry->ms.sym != sym))) | |
923c42c1 MG |
199 | return; |
200 | ||
ce6f4fab ACM |
201 | notes = symbol__annotation(sym); |
202 | ||
203 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
204 | return; |
205 | ||
bab89f6a | 206 | err = hist_entry__inc_addr_samples(he, sample, counter, ip); |
c7ad21af | 207 | |
ce6f4fab | 208 | pthread_mutex_unlock(¬es->lock); |
31d68e7b | 209 | |
151ee834 NK |
210 | if (unlikely(err)) { |
211 | /* | |
212 | * This function is now called with he->hists->lock held. | |
213 | * Release it before going to sleep. | |
214 | */ | |
215 | pthread_mutex_unlock(&he->hists->lock); | |
216 | ||
217 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
218 | ui__warn_map_erange(he->ms.map, sym, ip); | |
219 | else if (err == -ENOMEM) { | |
220 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
221 | sym->name); | |
222 | sleep(1); | |
223 | } | |
224 | ||
225 | pthread_mutex_lock(&he->hists->lock); | |
b66d8c0c | 226 | } |
923c42c1 MG |
227 | } |
228 | ||
1758af10 | 229 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 230 | { |
1758af10 | 231 | struct hist_entry *he = top->sym_filter_entry; |
ce6f4fab | 232 | struct annotation *notes; |
923c42c1 | 233 | struct symbol *symbol; |
36532461 | 234 | int more; |
923c42c1 | 235 | |
ab81f3fd | 236 | if (!he) |
923c42c1 MG |
237 | return; |
238 | ||
ab81f3fd | 239 | symbol = he->ms.sym; |
ce6f4fab ACM |
240 | notes = symbol__annotation(symbol); |
241 | ||
242 | pthread_mutex_lock(¬es->lock); | |
243 | ||
244 | if (notes->src == NULL) | |
245 | goto out_unlock; | |
923c42c1 | 246 | |
7289f83c | 247 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 248 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 249 | |
db8fd07a | 250 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 | 251 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
5d484f99 ACM |
252 | |
253 | if (top->evlist->enabled) { | |
254 | if (top->zero) | |
255 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
256 | else | |
257 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
258 | } | |
36532461 | 259 | if (more != 0) |
923c42c1 | 260 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
261 | out_unlock: |
262 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 263 | } |
07800601 | 264 | |
1758af10 | 265 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 266 | { |
8c3e10eb ACM |
267 | char bf[160]; |
268 | int printed = 0; | |
1758af10 | 269 | const int win_width = top->winsize.ws_col - 1; |
452ce03b JO |
270 | struct perf_evsel *evsel = top->sym_evsel; |
271 | struct hists *hists = evsel__hists(evsel); | |
d94b9430 | 272 | |
0f5486b5 | 273 | puts(CONSOLE_CLEAR); |
07800601 | 274 | |
1758af10 | 275 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 276 | printf("%s\n", bf); |
07800601 | 277 | |
1758af10 | 278 | perf_top__reset_sample_counters(top); |
07800601 | 279 | |
1a105f74 | 280 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 281 | |
4ea062ed ACM |
282 | if (hists->stats.nr_lost_warned != |
283 | hists->stats.nr_events[PERF_RECORD_LOST]) { | |
284 | hists->stats.nr_lost_warned = | |
285 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
286 | color_fprintf(stdout, PERF_COLOR_RED, |
287 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 288 | hists->stats.nr_lost_warned); |
ab81f3fd | 289 | ++printed; |
93fc64f1 ACM |
290 | } |
291 | ||
1758af10 ACM |
292 | if (top->sym_filter_entry) { |
293 | perf_top__show_details(top); | |
923c42c1 MG |
294 | return; |
295 | } | |
296 | ||
5d484f99 ACM |
297 | if (top->evlist->enabled) { |
298 | if (top->zero) { | |
299 | hists__delete_entries(hists); | |
300 | } else { | |
301 | hists__decay_entries(hists, top->hide_user_symbols, | |
302 | top->hide_kernel_symbols); | |
303 | } | |
701937bd NK |
304 | } |
305 | ||
4ea062ed | 306 | hists__collapse_resort(hists, NULL); |
452ce03b | 307 | perf_evsel__output_resort(evsel, NULL); |
701937bd | 308 | |
4ea062ed | 309 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 310 | putchar('\n'); |
4ea062ed | 311 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
d05e3aae | 312 | top->min_percent, stdout, symbol_conf.use_callchain); |
07800601 IM |
313 | } |
314 | ||
923c42c1 MG |
315 | static void prompt_integer(int *target, const char *msg) |
316 | { | |
317 | char *buf = malloc(0), *p; | |
318 | size_t dummy = 0; | |
319 | int tmp; | |
320 | ||
321 | fprintf(stdout, "\n%s: ", msg); | |
322 | if (getline(&buf, &dummy, stdin) < 0) | |
323 | return; | |
324 | ||
325 | p = strchr(buf, '\n'); | |
326 | if (p) | |
327 | *p = 0; | |
328 | ||
329 | p = buf; | |
330 | while(*p) { | |
331 | if (!isdigit(*p)) | |
332 | goto out_free; | |
333 | p++; | |
334 | } | |
335 | tmp = strtoul(buf, NULL, 10); | |
336 | *target = tmp; | |
337 | out_free: | |
338 | free(buf); | |
339 | } | |
340 | ||
341 | static void prompt_percent(int *target, const char *msg) | |
342 | { | |
343 | int tmp = 0; | |
344 | ||
345 | prompt_integer(&tmp, msg); | |
346 | if (tmp >= 0 && tmp <= 100) | |
347 | *target = tmp; | |
348 | } | |
349 | ||
1758af10 | 350 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
351 | { |
352 | char *buf = malloc(0), *p; | |
1758af10 | 353 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 354 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 355 | struct rb_node *next; |
923c42c1 MG |
356 | size_t dummy = 0; |
357 | ||
358 | /* zero counters of active symbol */ | |
359 | if (syme) { | |
923c42c1 | 360 | __zero_source_counters(syme); |
1758af10 | 361 | top->sym_filter_entry = NULL; |
923c42c1 MG |
362 | } |
363 | ||
364 | fprintf(stdout, "\n%s: ", msg); | |
365 | if (getline(&buf, &dummy, stdin) < 0) | |
366 | goto out_free; | |
367 | ||
368 | p = strchr(buf, '\n'); | |
369 | if (p) | |
370 | *p = 0; | |
371 | ||
4ea062ed | 372 | next = rb_first(&hists->entries); |
ab81f3fd ACM |
373 | while (next) { |
374 | n = rb_entry(next, struct hist_entry, rb_node); | |
375 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
376 | found = n; | |
923c42c1 MG |
377 | break; |
378 | } | |
ab81f3fd | 379 | next = rb_next(&n->rb_node); |
923c42c1 MG |
380 | } |
381 | ||
382 | if (!found) { | |
66aeb6d5 | 383 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 384 | sleep(1); |
923c42c1 | 385 | } else |
1758af10 | 386 | perf_top__parse_source(top, found); |
923c42c1 MG |
387 | |
388 | out_free: | |
389 | free(buf); | |
390 | } | |
391 | ||
1758af10 | 392 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 393 | { |
091bd2e9 MG |
394 | char *name = NULL; |
395 | ||
1758af10 ACM |
396 | if (top->sym_filter_entry) { |
397 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
398 | name = sym->name; |
399 | } | |
400 | ||
401 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
402 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
403 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 404 | |
1758af10 | 405 | if (top->evlist->nr_entries > 1) |
7289f83c | 406 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 407 | |
1758af10 | 408 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 409 | |
1758af10 | 410 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
411 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
412 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 413 | |
8ffcda17 | 414 | fprintf(stdout, |
1a72cfa6 | 415 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 416 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
417 | fprintf(stdout, |
418 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
419 | top->hide_user_symbols ? "yes" : "no"); |
420 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
421 | fprintf(stdout, "\t[qQ] quit.\n"); |
422 | } | |
423 | ||
1758af10 | 424 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
425 | { |
426 | switch (c) { | |
427 | case 'd': | |
428 | case 'e': | |
429 | case 'f': | |
430 | case 'z': | |
431 | case 'q': | |
432 | case 'Q': | |
8ffcda17 ACM |
433 | case 'K': |
434 | case 'U': | |
6cff0e8d KS |
435 | case 'F': |
436 | case 's': | |
437 | case 'S': | |
091bd2e9 MG |
438 | return 1; |
439 | case 'E': | |
1758af10 | 440 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
441 | default: |
442 | break; | |
091bd2e9 MG |
443 | } |
444 | ||
445 | return 0; | |
923c42c1 MG |
446 | } |
447 | ||
11859e82 | 448 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 449 | { |
11859e82 ACM |
450 | bool ret = true; |
451 | ||
1758af10 | 452 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 453 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 454 | struct termios save; |
091bd2e9 | 455 | |
1758af10 | 456 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
457 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
458 | fflush(stdout); | |
459 | ||
3969cc09 | 460 | set_term_quiet_input(&save); |
091bd2e9 MG |
461 | |
462 | poll(&stdin_poll, 1, -1); | |
463 | c = getc(stdin); | |
464 | ||
465 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 466 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 467 | return ret; |
091bd2e9 MG |
468 | } |
469 | ||
923c42c1 MG |
470 | switch (c) { |
471 | case 'd': | |
1758af10 ACM |
472 | prompt_integer(&top->delay_secs, "Enter display delay"); |
473 | if (top->delay_secs < 1) | |
474 | top->delay_secs = 1; | |
923c42c1 MG |
475 | break; |
476 | case 'e': | |
1758af10 ACM |
477 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
478 | if (top->print_entries == 0) { | |
89d0aeab | 479 | perf_top__resize(top); |
bdaab8c4 | 480 | signal(SIGWINCH, winch_sig); |
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 | |
868a8329 KJ |
589 | /* In order to read symbols from other namespaces perf to needs to call |
590 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
591 | * unshare(2) the fs so that we may continue to setns into namespaces | |
592 | * that we're observing. | |
593 | */ | |
594 | unshare(CLONE_FS); | |
595 | ||
1758af10 | 596 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
597 | |
598 | /* | |
599 | * Initialize the uid_filter_str, in the future the TUI will allow | |
600 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
601 | * via --uid. | |
602 | */ | |
e5cadb93 | 603 | evlist__for_each_entry(top->evlist, pos) { |
4ea062ed ACM |
604 | struct hists *hists = evsel__hists(pos); |
605 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
606 | } | |
0d37aa34 | 607 | |
13d1e536 NK |
608 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
609 | top->min_percent, | |
610 | &top->session->header.env); | |
ab81f3fd | 611 | |
11859e82 | 612 | done = 1; |
c0443df1 ACM |
613 | return NULL; |
614 | } | |
615 | ||
4a1a9971 JO |
616 | static void display_sig(int sig __maybe_unused) |
617 | { | |
618 | done = 1; | |
619 | } | |
620 | ||
621 | static void display_setup_sig(void) | |
622 | { | |
09f4d78a ACM |
623 | signal(SIGSEGV, sighandler_dump_stack); |
624 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
625 | signal(SIGINT, display_sig); |
626 | signal(SIGQUIT, display_sig); | |
627 | signal(SIGTERM, display_sig); | |
628 | } | |
629 | ||
1758af10 | 630 | static void *display_thread(void *arg) |
07800601 | 631 | { |
0f5486b5 | 632 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 633 | struct termios save; |
1758af10 | 634 | struct perf_top *top = arg; |
923c42c1 MG |
635 | int delay_msecs, c; |
636 | ||
868a8329 KJ |
637 | /* In order to read symbols from other namespaces perf to needs to call |
638 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
639 | * unshare(2) the fs so that we may continue to setns into namespaces | |
640 | * that we're observing. | |
641 | */ | |
642 | unshare(CLONE_FS); | |
643 | ||
4a1a9971 | 644 | display_setup_sig(); |
3af6e338 | 645 | pthread__unblock_sigwinch(); |
923c42c1 | 646 | repeat: |
b9c4b0f4 | 647 | delay_msecs = top->delay_secs * MSEC_PER_SEC; |
9398c484 | 648 | set_term_quiet_input(&save); |
923c42c1 MG |
649 | /* trash return*/ |
650 | getc(stdin); | |
07800601 | 651 | |
11859e82 | 652 | while (!done) { |
1758af10 | 653 | perf_top__print_sym_table(top); |
3af6e338 ACM |
654 | /* |
655 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
656 | * refresh screen in both cases. | |
657 | */ | |
658 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
659 | case 0: | |
660 | continue; | |
661 | case -1: | |
662 | if (errno == EINTR) | |
663 | continue; | |
7b0214b7 | 664 | __fallthrough; |
3af6e338 | 665 | default: |
11859e82 ACM |
666 | c = getc(stdin); |
667 | tcsetattr(0, TCSAFLUSH, &save); | |
668 | ||
669 | if (perf_top__handle_keypress(top, c)) | |
670 | goto repeat; | |
671 | done = 1; | |
3af6e338 ACM |
672 | } |
673 | } | |
07800601 | 674 | |
4a1a9971 | 675 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
676 | return NULL; |
677 | } | |
678 | ||
7c50391f NK |
679 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
680 | struct addr_location *al, bool single, | |
681 | void *arg) | |
682 | { | |
683 | struct perf_top *top = arg; | |
684 | struct hist_entry *he = iter->he; | |
685 | struct perf_evsel *evsel = iter->evsel; | |
686 | ||
2e0453af | 687 | if (perf_hpp_list.sym && single) |
bab89f6a | 688 | perf_top__record_precise_ip(top, he, iter->sample, evsel->idx, al->addr); |
7c50391f | 689 | |
a18b027e AK |
690 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
691 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
692 | return 0; |
693 | } | |
694 | ||
1758af10 ACM |
695 | static void perf_event__process_sample(struct perf_tool *tool, |
696 | const union perf_event *event, | |
7b27509f | 697 | struct perf_evsel *evsel, |
8115d60c | 698 | struct perf_sample *sample, |
743eb868 | 699 | struct machine *machine) |
07800601 | 700 | { |
1758af10 | 701 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 702 | struct addr_location al; |
19d4ac3c | 703 | int err; |
5b2bb75a | 704 | |
23346f21 | 705 | if (!machine && perf_guest) { |
6b118e92 DA |
706 | static struct intlist *seen; |
707 | ||
708 | if (!seen) | |
ffe0fb76 | 709 | seen = intlist__new(NULL); |
6b118e92 | 710 | |
ef89325f | 711 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 712 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
713 | sample->pid); |
714 | intlist__add(seen, sample->pid); | |
6b118e92 | 715 | } |
a1645ce1 ZY |
716 | return; |
717 | } | |
718 | ||
0c095715 | 719 | if (!machine) { |
11859e82 | 720 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 721 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
722 | return; |
723 | } | |
724 | ||
8115d60c | 725 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 726 | top->exact_samples++; |
1676b8a0 | 727 | |
bb3eb566 | 728 | if (machine__resolve(machine, &al, sample) < 0) |
1ed091c4 | 729 | return; |
07800601 | 730 | |
e77a0742 | 731 | if (!machine->kptr_restrict_warned && |
5f6f5580 ACM |
732 | symbol_conf.kptr_restrict && |
733 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
df7ccfa2 ACM |
734 | if (!perf_evlist__exclude_kernel(top->session->evlist)) { |
735 | ui__warning( | |
5f6f5580 ACM |
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 | 740 | " modules" : ""); |
df7ccfa2 ACM |
741 | if (use_browser <= 0) |
742 | sleep(5); | |
743 | } | |
e77a0742 | 744 | machine->kptr_restrict_warned = true; |
5f6f5580 ACM |
745 | } |
746 | ||
72b8fa17 | 747 | if (al.sym == NULL) { |
e4a338d0 | 748 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
749 | /* |
750 | * As we do lazy loading of symtabs we only will know if the | |
751 | * specified vmlinux file is invalid when we actually have a | |
752 | * hit in kernel space and then try to load it. So if we get | |
753 | * here and there are _no_ symbols in the DSO backing the | |
754 | * kernel map, bail out. | |
755 | * | |
756 | * We may never get here, for instance, if we use -K/ | |
757 | * --hide-kernel-symbols, even if the user specifies an | |
758 | * invalid --vmlinux ;-) | |
759 | */ | |
e77a0742 | 760 | if (!machine->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 761 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 762 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 | 763 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
764 | char serr[256]; |
765 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
766 | ui__warning("The %s file can't be used: %s\n%s", | |
767 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
768 | } else { |
769 | ui__warning("A vmlinux file was not found.\n%s", | |
770 | msg); | |
771 | } | |
772 | ||
773 | if (use_browser <= 0) | |
774 | sleep(5); | |
1758af10 | 775 | top->vmlinux_warned = true; |
72b8fa17 | 776 | } |
6cff0e8d KS |
777 | } |
778 | ||
b55cc4ed | 779 | if (al.sym == NULL || !al.sym->idle) { |
4ea062ed | 780 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 781 | struct hist_entry_iter iter = { |
063bd936 NK |
782 | .evsel = evsel, |
783 | .sample = sample, | |
784 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 785 | }; |
70db7533 | 786 | |
7c50391f NK |
787 | if (symbol_conf.cumulate_callchain) |
788 | iter.ops = &hist_iter_cumulative; | |
789 | else | |
790 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 791 | |
4ea062ed | 792 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 793 | |
063bd936 | 794 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
795 | if (err < 0) |
796 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 797 | |
4ea062ed | 798 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 799 | } |
ab81f3fd | 800 | |
b91fc39f | 801 | addr_location__put(&al); |
07800601 IM |
802 | } |
803 | ||
1758af10 | 804 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 805 | { |
8d50e5b4 | 806 | struct perf_sample sample; |
7b27509f | 807 | struct perf_evsel *evsel; |
1758af10 | 808 | struct perf_session *session = top->session; |
8115d60c | 809 | union perf_event *event; |
743eb868 | 810 | struct machine *machine; |
5538beca | 811 | int ret; |
07800601 | 812 | |
1758af10 | 813 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 814 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
815 | if (ret) { |
816 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 817 | goto next_event; |
5538beca | 818 | } |
04391deb | 819 | |
1758af10 | 820 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
821 | assert(evsel != NULL); |
822 | ||
5b2bb75a | 823 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 824 | ++top->samples; |
743eb868 | 825 | |
473398a2 | 826 | switch (sample.cpumode) { |
743eb868 | 827 | case PERF_RECORD_MISC_USER: |
1758af10 ACM |
828 | ++top->us_samples; |
829 | if (top->hide_user_symbols) | |
8e50d384 | 830 | goto next_event; |
34ba5122 | 831 | machine = &session->machines.host; |
743eb868 ACM |
832 | break; |
833 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
834 | ++top->kernel_samples; |
835 | if (top->hide_kernel_symbols) | |
8e50d384 | 836 | goto next_event; |
34ba5122 | 837 | machine = &session->machines.host; |
743eb868 ACM |
838 | break; |
839 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 840 | ++top->guest_kernel_samples; |
ef89325f AH |
841 | machine = perf_session__find_machine(session, |
842 | sample.pid); | |
743eb868 ACM |
843 | break; |
844 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 845 | ++top->guest_us_samples; |
743eb868 ACM |
846 | /* |
847 | * TODO: we don't process guest user from host side | |
848 | * except simple counting. | |
849 | */ | |
8e50d384 | 850 | goto next_event; |
4b37af59 NK |
851 | default: |
852 | if (event->header.type == PERF_RECORD_SAMPLE) | |
853 | goto next_event; | |
854 | machine = &session->machines.host; | |
855 | break; | |
743eb868 ACM |
856 | } |
857 | ||
858 | ||
1758af10 ACM |
859 | if (event->header.type == PERF_RECORD_SAMPLE) { |
860 | perf_event__process_sample(&top->tool, event, evsel, | |
861 | &sample, machine); | |
862 | } else if (event->header.type < PERF_RECORD_MAX) { | |
4ea062ed | 863 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); |
162f0bef | 864 | machine__process_event(machine, event, &sample); |
7b27509f | 865 | } else |
75be989a | 866 | ++session->evlist->stats.nr_unknown_events; |
8e50d384 ZZ |
867 | next_event: |
868 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 869 | } |
07800601 IM |
870 | } |
871 | ||
1758af10 | 872 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 873 | { |
70db7533 ACM |
874 | int i; |
875 | ||
1758af10 ACM |
876 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
877 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
878 | } |
879 | ||
11859e82 | 880 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 881 | { |
d6195a6a | 882 | char msg[BUFSIZ]; |
6a4bb04c | 883 | struct perf_evsel *counter; |
1758af10 | 884 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 885 | struct record_opts *opts = &top->record_opts; |
727ab04e | 886 | |
e68ae9cf | 887 | perf_evlist__config(evlist, opts, &callchain_param); |
7e4ff9e3 | 888 | |
e5cadb93 | 889 | evlist__for_each_entry(evlist, counter) { |
72cb7013 | 890 | try_again: |
1758af10 | 891 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 892 | top->evlist->threads) < 0) { |
56e52e85 | 893 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
bb963e16 | 894 | if (verbose > 0) |
c0a54341 | 895 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
896 | goto try_again; |
897 | } | |
c286c419 | 898 | |
56e52e85 ACM |
899 | perf_evsel__open_strerror(counter, &opts->target, |
900 | errno, msg, sizeof(msg)); | |
901 | ui__error("%s\n", msg); | |
c286c419 | 902 | goto out_err; |
d6d901c2 | 903 | } |
716c69fe | 904 | } |
70db7533 | 905 | |
2376c67a | 906 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 907 | ui__error("Failed to mmap with %d (%s)\n", |
c8b5f2c9 | 908 | errno, str_error_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
909 | goto out_err; |
910 | } | |
911 | ||
11859e82 | 912 | return 0; |
c286c419 ACM |
913 | |
914 | out_err: | |
11859e82 | 915 | return -1; |
716c69fe IM |
916 | } |
917 | ||
e3815264 | 918 | static int callchain_param__setup_sample_type(struct callchain_param *callchain) |
19d4ac3c | 919 | { |
2e0453af | 920 | if (!perf_hpp_list.sym) { |
e3815264 | 921 | if (callchain->enabled) { |
3780f488 | 922 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
923 | return -EINVAL; |
924 | } | |
e3815264 ACM |
925 | } else if (callchain->mode != CHAIN_NONE) { |
926 | if (callchain_register_param(callchain) < 0) { | |
3780f488 | 927 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
928 | return -EINVAL; |
929 | } | |
930 | } | |
931 | ||
932 | return 0; | |
933 | } | |
934 | ||
1758af10 | 935 | static int __cmd_top(struct perf_top *top) |
716c69fe | 936 | { |
5d8bb1ec MP |
937 | char msg[512]; |
938 | struct perf_evsel *pos; | |
939 | struct perf_evsel_config_term *err_term; | |
940 | struct perf_evlist *evlist = top->evlist; | |
b4006796 | 941 | struct record_opts *opts = &top->record_opts; |
716c69fe | 942 | pthread_t thread; |
19d4ac3c | 943 | int ret; |
f5fc1412 | 944 | |
6a4d98d7 | 945 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 946 | if (top->session == NULL) |
52e02834 | 947 | return -1; |
07800601 | 948 | |
0d3942db | 949 | if (!objdump_path) { |
eebd0bfc | 950 | ret = perf_env__lookup_objdump(&top->session->header.env); |
0d3942db SB |
951 | if (ret) |
952 | goto out_delete; | |
953 | } | |
954 | ||
e3815264 | 955 | ret = callchain_param__setup_sample_type(&callchain_param); |
19d4ac3c ACM |
956 | if (ret) |
957 | goto out_delete; | |
958 | ||
9d8b172f | 959 | if (perf_session__register_idle_thread(top->session) < 0) |
c53d138d NK |
960 | goto out_delete; |
961 | ||
0c6b4994 KL |
962 | if (top->nr_threads_synthesize > 1) |
963 | perf_set_multithreaded(); | |
340b47f5 | 964 | |
a33fbd56 | 965 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
340b47f5 KL |
966 | top->evlist->threads, false, |
967 | opts->proc_map_timeout, | |
0c6b4994 | 968 | top->nr_threads_synthesize); |
340b47f5 | 969 | |
0c6b4994 KL |
970 | if (top->nr_threads_synthesize > 1) |
971 | perf_set_singlethreaded(); | |
2e7ea3ab | 972 | |
35a634f7 | 973 | if (perf_hpp_list.socket) { |
2e7ea3ab KL |
974 | ret = perf_env__read_cpu_topology_map(&perf_env); |
975 | if (ret < 0) | |
976 | goto out_err_cpu_topo; | |
977 | } | |
978 | ||
11859e82 ACM |
979 | ret = perf_top__start_counters(top); |
980 | if (ret) | |
981 | goto out_delete; | |
982 | ||
5d8bb1ec MP |
983 | ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term); |
984 | if (ret) { | |
62d94b00 | 985 | pr_err("failed to set config \"%s\" on event %s with %d (%s)\n", |
5d8bb1ec MP |
986 | err_term->val.drv_cfg, perf_evsel__name(pos), errno, |
987 | str_error_r(errno, msg, sizeof(msg))); | |
988 | goto out_delete; | |
989 | } | |
990 | ||
1758af10 | 991 | top->session->evlist = top->evlist; |
7b56cce2 | 992 | perf_session__set_id_hdr_size(top->session); |
07800601 | 993 | |
2376c67a ACM |
994 | /* |
995 | * When perf is starting the traced process, all the events (apart from | |
996 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
997 | * prematurely enabling them. | |
998 | * | |
999 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
1000 | * so leave the check here. | |
1001 | */ | |
602ad878 | 1002 | if (!target__none(&opts->target)) |
2376c67a ACM |
1003 | perf_evlist__enable(top->evlist); |
1004 | ||
2f01190a | 1005 | /* Wait for a minimal set of events before starting the snapshot */ |
f66a889d | 1006 | perf_evlist__poll(top->evlist, 100); |
2f01190a | 1007 | |
1758af10 | 1008 | perf_top__mmap_read(top); |
2f01190a | 1009 | |
11859e82 | 1010 | ret = -1; |
c0443df1 | 1011 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 1012 | display_thread), top)) { |
3780f488 | 1013 | ui__error("Could not create display thread.\n"); |
11859e82 | 1014 | goto out_delete; |
07800601 IM |
1015 | } |
1016 | ||
1758af10 | 1017 | if (top->realtime_prio) { |
07800601 IM |
1018 | struct sched_param param; |
1019 | ||
1758af10 | 1020 | param.sched_priority = top->realtime_prio; |
07800601 | 1021 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 1022 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 1023 | goto out_join; |
07800601 IM |
1024 | } |
1025 | } | |
1026 | ||
11859e82 | 1027 | while (!done) { |
1758af10 | 1028 | u64 hits = top->samples; |
07800601 | 1029 | |
1758af10 | 1030 | perf_top__mmap_read(top); |
07800601 | 1031 | |
1758af10 | 1032 | if (hits == top->samples) |
f66a889d | 1033 | ret = perf_evlist__poll(top->evlist, 100); |
89d0aeab JO |
1034 | |
1035 | if (resize) { | |
1036 | perf_top__resize(top); | |
1037 | resize = 0; | |
1038 | } | |
07800601 IM |
1039 | } |
1040 | ||
11859e82 | 1041 | ret = 0; |
ae256fa2 JO |
1042 | out_join: |
1043 | pthread_join(thread, NULL); | |
19d4ac3c | 1044 | out_delete: |
1758af10 ACM |
1045 | perf_session__delete(top->session); |
1046 | top->session = NULL; | |
19d4ac3c | 1047 | |
11859e82 | 1048 | return ret; |
2e7ea3ab KL |
1049 | |
1050 | out_err_cpu_topo: { | |
1051 | char errbuf[BUFSIZ]; | |
c8b5f2c9 | 1052 | const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); |
2e7ea3ab KL |
1053 | |
1054 | ui__error("Could not read the CPU topology map: %s\n", err); | |
1055 | goto out_delete; | |
1056 | } | |
19d4ac3c ACM |
1057 | } |
1058 | ||
1059 | static int | |
ae779a63 | 1060 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1061 | { |
19d4ac3c | 1062 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1063 | return record_callchain_opt(opt, arg, unset); |
1064 | } | |
19d4ac3c | 1065 | |
ae779a63 JO |
1066 | static int |
1067 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1068 | { | |
2ddd5c04 | 1069 | struct callchain_param *callchain = opt->value; |
a2c10d39 | 1070 | |
2ddd5c04 ACM |
1071 | callchain->enabled = !unset; |
1072 | callchain->record_mode = CALLCHAIN_FP; | |
a2c10d39 NK |
1073 | |
1074 | /* | |
1075 | * --no-call-graph | |
1076 | */ | |
1077 | if (unset) { | |
1078 | symbol_conf.use_callchain = false; | |
2ddd5c04 | 1079 | callchain->record_mode = CALLCHAIN_NONE; |
a2c10d39 NK |
1080 | return 0; |
1081 | } | |
1082 | ||
1083 | return parse_callchain_top_opt(arg); | |
07800601 | 1084 | } |
b456bae0 | 1085 | |
b8cbb349 | 1086 | static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) |
eb853e80 | 1087 | { |
eb853e80 | 1088 | if (!strcmp(var, "top.call-graph")) |
5a2e5e85 | 1089 | var = "call-graph.record-mode"; /* fall-through */ |
104ac991 NK |
1090 | if (!strcmp(var, "top.children")) { |
1091 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1092 | return 0; | |
1093 | } | |
eb853e80 | 1094 | |
b8cbb349 | 1095 | return 0; |
eb853e80 JO |
1096 | } |
1097 | ||
fa5df943 NK |
1098 | static int |
1099 | parse_percent_limit(const struct option *opt, const char *arg, | |
1100 | int unset __maybe_unused) | |
1101 | { | |
1102 | struct perf_top *top = opt->value; | |
1103 | ||
1104 | top->min_percent = strtof(arg, NULL); | |
1105 | return 0; | |
1106 | } | |
1107 | ||
76a26549 NK |
1108 | const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP |
1109 | "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; | |
a2c10d39 | 1110 | |
b0ad8ea6 | 1111 | int cmd_top(int argc, const char **argv) |
1758af10 | 1112 | { |
16ad2ffb | 1113 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1114 | struct perf_top top = { |
1115 | .count_filter = 5, | |
1116 | .delay_secs = 2, | |
2376c67a ACM |
1117 | .record_opts = { |
1118 | .mmap_pages = UINT_MAX, | |
1119 | .user_freq = UINT_MAX, | |
1120 | .user_interval = ULLONG_MAX, | |
1121 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1122 | .target = { |
2376c67a ACM |
1123 | .uses_mmap = true, |
1124 | }, | |
9d9cad76 | 1125 | .proc_map_timeout = 500, |
d1cb9fce | 1126 | }, |
4cb93446 | 1127 | .max_stack = sysctl_perf_event_max_stack, |
2376c67a | 1128 | .sym_pcnt_filter = 5, |
0c6b4994 | 1129 | .nr_threads_synthesize = UINT_MAX, |
1758af10 | 1130 | }; |
b4006796 | 1131 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1132 | struct target *target = &opts->target; |
1758af10 | 1133 | const struct option options[] = { |
8c3e10eb | 1134 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1135 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1136 | parse_events_option), |
2376c67a ACM |
1137 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1138 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1139 | "profile events on existing process id"), |
2376c67a | 1140 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1141 | "profile events on existing thread id"), |
2376c67a | 1142 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1143 | "system-wide collection from all CPUs"), |
2376c67a | 1144 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1145 | "list of cpus to monitor"), |
b32d133a ACM |
1146 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1147 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1148 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1149 | "don't load vmlinux even if found"), | |
8c3e10eb | 1150 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1151 | "hide kernel symbols"), |
994a1f78 JO |
1152 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1153 | "number of mmap data pages", | |
1154 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1155 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1156 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1157 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1158 | "number of seconds to delay between refreshes"), |
1758af10 | 1159 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1160 | "dump the symbol table used for profiling"), |
8c3e10eb | 1161 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1162 | "only display functions with more events than this"), |
bf80669e | 1163 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1164 | "put the counters into a counter group"), |
2376c67a ACM |
1165 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1166 | "child tasks do not inherit counters"), | |
1758af10 | 1167 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1168 | "symbol to annotate"), |
2376c67a ACM |
1169 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1170 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1171 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1172 | "display this many functions"), |
8c3e10eb | 1173 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1174 | "hide user symbols"), |
1758af10 ACM |
1175 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1176 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1177 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1178 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1179 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1180 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1181 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1182 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1183 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1184 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1185 | "Show a column with the number of samples"), | |
2ddd5c04 | 1186 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
a2c10d39 | 1187 | NULL, "enables call-graph recording and display", |
ae779a63 | 1188 | &callchain_opt), |
2ddd5c04 | 1189 | OPT_CALLBACK(0, "call-graph", &callchain_param, |
76a26549 | 1190 | "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", |
a2c10d39 | 1191 | top_callchain_help, &parse_callchain_opt), |
1432ec34 NK |
1192 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1193 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1194 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1195 | "Set the maximum stack depth when parsing the callchain. " | |
4cb93446 | 1196 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
b21484f1 GP |
1197 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1198 | "ignore callees of these functions in call graphs", | |
1199 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1200 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1201 | "Show a column with the sum of periods"), | |
1202 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1203 | "only consider symbols in these dsos"), | |
1204 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1205 | "only consider symbols in these comms"), | |
1206 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1207 | "only consider these symbols"), | |
64c6f0c7 ACM |
1208 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1209 | "Interleave source code with assembly code (default)"), | |
1210 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1211 | "Display raw encoding of assembly instructions (default)"), | |
763122ad AK |
1212 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1213 | "Enable kernel symbol demangling"), | |
0d3942db SB |
1214 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1215 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1216 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1217 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1218 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1219 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1220 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1221 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1222 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1223 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1224 | "width[,width...]", | |
1225 | "don't try to adjust column width, use these fixed values"), | |
9d9cad76 KL |
1226 | OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, |
1227 | "per thread proc mmap processing timeout in ms"), | |
a18b027e AK |
1228 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1229 | "branch any", "sample any taken branches", | |
1230 | parse_branch_stack), | |
1231 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1232 | "branch filter mask", "branch stack filter modes", | |
1233 | parse_branch_stack), | |
053a3989 NK |
1234 | OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
1235 | "Show raw trace event output (do not use print fmt or plugins)"), | |
c92fcfde NK |
1236 | OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
1237 | "Show entries in a hierarchy"), | |
868a8329 | 1238 | OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), |
0c6b4994 KL |
1239 | OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, |
1240 | "number of thread to run event synthesize"), | |
b456bae0 | 1241 | OPT_END() |
1758af10 | 1242 | }; |
be772842 ACM |
1243 | const char * const top_usage[] = { |
1244 | "perf top [<options>]", | |
1245 | NULL | |
1246 | }; | |
a635fc51 ACM |
1247 | int status = hists__init(); |
1248 | ||
1249 | if (status < 0) | |
1250 | return status; | |
b456bae0 | 1251 | |
334fe7a3 | 1252 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1253 | if (top.evlist == NULL) |
361c99a6 ACM |
1254 | return -ENOMEM; |
1255 | ||
ecc4c561 ACM |
1256 | status = perf_config(perf_top_config, &top); |
1257 | if (status) | |
1258 | return status; | |
eb853e80 | 1259 | |
b456bae0 IM |
1260 | argc = parse_options(argc, argv, options, top_usage, 0); |
1261 | if (argc) | |
1262 | usage_with_options(top_usage, options); | |
1263 | ||
54f8f403 NK |
1264 | if (!top.evlist->nr_entries && |
1265 | perf_evlist__add_default(top.evlist) < 0) { | |
1266 | pr_err("Not enough memory for event selector list\n"); | |
1267 | goto out_delete_evlist; | |
1268 | } | |
1269 | ||
c92fcfde NK |
1270 | if (symbol_conf.report_hierarchy) { |
1271 | /* disable incompatible options */ | |
1272 | symbol_conf.event_group = false; | |
1273 | symbol_conf.cumulate_callchain = false; | |
1274 | ||
1275 | if (field_order) { | |
1276 | pr_err("Error: --hierarchy and --fields options cannot be used together\n"); | |
1277 | parse_options_usage(top_usage, options, "fields", 0); | |
1278 | parse_options_usage(NULL, options, "hierarchy", 0); | |
1279 | goto out_delete_evlist; | |
1280 | } | |
1281 | } | |
1282 | ||
512ae1bd | 1283 | sort__mode = SORT_MODE__TOP; |
6fe8c26d | 1284 | /* display thread wants entries to be collapsed in a different tree */ |
52225036 | 1285 | perf_hpp_list.need_collapse = 1; |
ab81f3fd | 1286 | |
3ee60c3b ACM |
1287 | if (top.use_stdio) |
1288 | use_browser = 0; | |
1289 | else if (top.use_tui) | |
1290 | use_browser = 1; | |
1291 | ||
1292 | setup_browser(false); | |
1293 | ||
40184c46 | 1294 | if (setup_sorting(top.evlist) < 0) { |
6fe8c26d NK |
1295 | if (sort_order) |
1296 | parse_options_usage(top_usage, options, "s", 1); | |
1297 | if (field_order) | |
1298 | parse_options_usage(sort_order ? NULL : top_usage, | |
1299 | options, "fields", 0); | |
d37a92dc NK |
1300 | goto out_delete_evlist; |
1301 | } | |
ab81f3fd | 1302 | |
602ad878 | 1303 | status = target__validate(target); |
16ad2ffb | 1304 | if (status) { |
602ad878 | 1305 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1306 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1307 | } |
1308 | ||
602ad878 | 1309 | status = target__parse_uid(target); |
16ad2ffb NK |
1310 | if (status) { |
1311 | int saved_errno = errno; | |
4bd0f2d2 | 1312 | |
602ad878 | 1313 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1314 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1315 | |
1316 | status = -saved_errno; | |
0d37aa34 | 1317 | goto out_delete_evlist; |
16ad2ffb | 1318 | } |
0d37aa34 | 1319 | |
602ad878 | 1320 | if (target__none(target)) |
2376c67a | 1321 | target->system_wide = true; |
10b47d54 | 1322 | |
f8a5c0b2 ACM |
1323 | if (perf_evlist__create_maps(top.evlist, target) < 0) { |
1324 | ui__error("Couldn't create thread/CPU maps: %s\n", | |
c8b5f2c9 | 1325 | errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); |
f8a5c0b2 | 1326 | goto out_delete_evlist; |
69aad6f1 | 1327 | } |
5a8e5a30 | 1328 | |
d04b35f8 ACM |
1329 | symbol_conf.nr_events = top.evlist->nr_entries; |
1330 | ||
8c3e10eb ACM |
1331 | if (top.delay_secs < 1) |
1332 | top.delay_secs = 1; | |
2f335a02 | 1333 | |
b4006796 | 1334 | if (record_opts__config(opts)) { |
2376c67a | 1335 | status = -EINVAL; |
03ad9747 | 1336 | goto out_delete_evlist; |
69aad6f1 ACM |
1337 | } |
1338 | ||
0c21f736 | 1339 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1340 | |
e3815264 | 1341 | if (!callchain_param.enabled) { |
1432ec34 NK |
1342 | symbol_conf.cumulate_callchain = false; |
1343 | perf_hpp__cancel_cumulate(); | |
1344 | } | |
1345 | ||
792aeafa NK |
1346 | if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
1347 | callchain_param.order = ORDER_CALLER; | |
1348 | ||
b01141f4 ACM |
1349 | status = symbol__annotation_init(); |
1350 | if (status < 0) | |
1351 | goto out_delete_evlist; | |
69aad6f1 ACM |
1352 | |
1353 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
0a7e6d1b | 1354 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1355 | return -1; |
1356 | ||
08e71542 | 1357 | sort__setup_elide(stdout); |
ab81f3fd | 1358 | |
1758af10 | 1359 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1360 | if (top.print_entries == 0) { |
1758af10 | 1361 | perf_top__update_print_entries(&top); |
bdaab8c4 | 1362 | signal(SIGWINCH, winch_sig); |
3b6ed988 ACM |
1363 | } |
1364 | ||
1758af10 | 1365 | status = __cmd_top(&top); |
806fb630 | 1366 | |
0d37aa34 | 1367 | out_delete_evlist: |
8c3e10eb | 1368 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1369 | |
1370 | return status; | |
b456bae0 | 1371 | } |