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Commit | Line | Data |
---|---|---|
07800601 | 1 | /* |
bf9e1876 IM |
2 | * builtin-top.c |
3 | * | |
4 | * Builtin top command: Display a continuously updated profile of | |
5 | * any workload, CPU or specific PID. | |
6 | * | |
7 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> | |
ab81f3fd | 8 | * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> |
bf9e1876 IM |
9 | * |
10 | * Improvements and fixes by: | |
11 | * | |
12 | * Arjan van de Ven <arjan@linux.intel.com> | |
13 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
14 | * Wu Fengguang <fengguang.wu@intel.com> | |
15 | * Mike Galbraith <efault@gmx.de> | |
16 | * Paul Mackerras <paulus@samba.org> | |
17 | * | |
18 | * Released under the GPL v2. (and only v2, not any later version) | |
07800601 | 19 | */ |
bf9e1876 | 20 | #include "builtin.h" |
07800601 | 21 | |
1a482f38 | 22 | #include "perf.h" |
bf9e1876 | 23 | |
36532461 | 24 | #include "util/annotate.h" |
c0443df1 | 25 | #include "util/cache.h" |
8fc0321f | 26 | #include "util/color.h" |
361c99a6 | 27 | #include "util/evlist.h" |
69aad6f1 | 28 | #include "util/evsel.h" |
b0a7d1a0 | 29 | #include "util/machine.h" |
b3165f41 ACM |
30 | #include "util/session.h" |
31 | #include "util/symbol.h" | |
439d473b | 32 | #include "util/thread.h" |
fd78260b | 33 | #include "util/thread_map.h" |
8c3e10eb | 34 | #include "util/top.h" |
148be2c1 | 35 | #include "util/util.h" |
43cbcd8a | 36 | #include <linux/rbtree.h> |
b456bae0 IM |
37 | #include "util/parse-options.h" |
38 | #include "util/parse-events.h" | |
a12b51c4 | 39 | #include "util/cpumap.h" |
69aad6f1 | 40 | #include "util/xyarray.h" |
ab81f3fd | 41 | #include "util/sort.h" |
6b118e92 | 42 | #include "util/intlist.h" |
0d3942db | 43 | #include "arch/common.h" |
07800601 | 44 | |
8f28827a FW |
45 | #include "util/debug.h" |
46 | ||
07800601 | 47 | #include <assert.h> |
31d68e7b | 48 | #include <elf.h> |
07800601 | 49 | #include <fcntl.h> |
0e9b20b8 | 50 | |
07800601 | 51 | #include <stdio.h> |
923c42c1 MG |
52 | #include <termios.h> |
53 | #include <unistd.h> | |
9486aa38 | 54 | #include <inttypes.h> |
0e9b20b8 | 55 | |
07800601 | 56 | #include <errno.h> |
07800601 IM |
57 | #include <time.h> |
58 | #include <sched.h> | |
07800601 IM |
59 | |
60 | #include <sys/syscall.h> | |
61 | #include <sys/ioctl.h> | |
a8fa4960 | 62 | #include <poll.h> |
07800601 IM |
63 | #include <sys/prctl.h> |
64 | #include <sys/wait.h> | |
65 | #include <sys/uio.h> | |
31d68e7b | 66 | #include <sys/utsname.h> |
07800601 IM |
67 | #include <sys/mman.h> |
68 | ||
07800601 IM |
69 | #include <linux/types.h> |
70 | ||
11859e82 ACM |
71 | static volatile int done; |
72 | ||
933cbb1c NK |
73 | #define HEADER_LINE_NR 5 |
74 | ||
1758af10 | 75 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 76 | { |
933cbb1c | 77 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
78 | } |
79 | ||
1d037ca1 IT |
80 | static void perf_top__sig_winch(int sig __maybe_unused, |
81 | siginfo_t *info __maybe_unused, void *arg) | |
3b6ed988 | 82 | { |
1758af10 ACM |
83 | struct perf_top *top = arg; |
84 | ||
85 | get_term_dimensions(&top->winsize); | |
86 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
87 | } |
88 | ||
1758af10 | 89 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 MG |
90 | { |
91 | struct symbol *sym; | |
ce6f4fab | 92 | struct annotation *notes; |
439d473b | 93 | struct map *map; |
36532461 | 94 | int err = -1; |
923c42c1 | 95 | |
ab81f3fd | 96 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
97 | return -1; |
98 | ||
ab81f3fd ACM |
99 | sym = he->ms.sym; |
100 | map = he->ms.map; | |
b0a9ab62 ACM |
101 | |
102 | /* | |
103 | * We can't annotate with just /proc/kallsyms | |
104 | */ | |
bbb7f846 AH |
105 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
106 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
107 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
108 | "path\n", sym->name); | |
109 | sleep(1); | |
b0a9ab62 | 110 | return -1; |
b269876c ACM |
111 | } |
112 | ||
ce6f4fab ACM |
113 | notes = symbol__annotation(sym); |
114 | if (notes->src != NULL) { | |
115 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
116 | goto out_assign; |
117 | } | |
923c42c1 | 118 | |
ce6f4fab | 119 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 120 | |
d04b35f8 | 121 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 122 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
123 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
124 | sym->name); | |
ce6f4fab | 125 | sleep(1); |
c97cf422 | 126 | return err; |
923c42c1 | 127 | } |
36532461 | 128 | |
ab81f3fd | 129 | err = symbol__annotate(sym, map, 0); |
36532461 | 130 | if (err == 0) { |
923c42c1 | 131 | out_assign: |
1758af10 | 132 | top->sym_filter_entry = he; |
36532461 | 133 | } |
c97cf422 | 134 | |
ce6f4fab | 135 | pthread_mutex_unlock(¬es->lock); |
36532461 | 136 | return err; |
923c42c1 MG |
137 | } |
138 | ||
ab81f3fd | 139 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 140 | { |
ab81f3fd | 141 | struct symbol *sym = he->ms.sym; |
36532461 | 142 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
143 | } |
144 | ||
31d68e7b ACM |
145 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
146 | { | |
147 | struct utsname uts; | |
148 | int err = uname(&uts); | |
149 | ||
150 | ui__warning("Out of bounds address found:\n\n" | |
151 | "Addr: %" PRIx64 "\n" | |
152 | "DSO: %s %c\n" | |
153 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
154 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
155 | "Arch: %s\n" | |
156 | "Kernel: %s\n" | |
157 | "Tools: %s\n\n" | |
158 | "Not all samples will be on the annotation output.\n\n" | |
159 | "Please report to linux-kernel@vger.kernel.org\n", | |
160 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
161 | map->start, map->end, sym->start, sym->end, | |
162 | sym->binding == STB_GLOBAL ? 'g' : | |
163 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
164 | err ? "[unknown]" : uts.machine, | |
165 | err ? "[unknown]" : uts.release, perf_version_string); | |
166 | if (use_browser <= 0) | |
167 | sleep(5); | |
168 | ||
169 | map->erange_warned = true; | |
170 | } | |
171 | ||
1758af10 ACM |
172 | static void perf_top__record_precise_ip(struct perf_top *top, |
173 | struct hist_entry *he, | |
174 | int counter, u64 ip) | |
923c42c1 | 175 | { |
ce6f4fab ACM |
176 | struct annotation *notes; |
177 | struct symbol *sym; | |
48c65bda | 178 | int err = 0; |
ce6f4fab | 179 | |
ab81f3fd | 180 | if (he == NULL || he->ms.sym == NULL || |
1758af10 ACM |
181 | ((top->sym_filter_entry == NULL || |
182 | top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) | |
923c42c1 MG |
183 | return; |
184 | ||
ab81f3fd | 185 | sym = he->ms.sym; |
ce6f4fab ACM |
186 | notes = symbol__annotation(sym); |
187 | ||
188 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
189 | return; |
190 | ||
ab81f3fd | 191 | ip = he->ms.map->map_ip(he->ms.map, ip); |
48c65bda NK |
192 | |
193 | if (ui__has_annotation()) | |
194 | err = hist_entry__inc_addr_samples(he, counter, ip); | |
c7ad21af | 195 | |
ce6f4fab | 196 | pthread_mutex_unlock(¬es->lock); |
31d68e7b | 197 | |
7c50391f NK |
198 | /* |
199 | * This function is now called with he->hists->lock held. | |
200 | * Release it before going to sleep. | |
201 | */ | |
202 | pthread_mutex_unlock(&he->hists->lock); | |
203 | ||
31d68e7b ACM |
204 | if (err == -ERANGE && !he->ms.map->erange_warned) |
205 | ui__warn_map_erange(he->ms.map, sym, ip); | |
b66d8c0c ACM |
206 | else if (err == -ENOMEM) { |
207 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
208 | sym->name); | |
209 | sleep(1); | |
210 | } | |
7c50391f NK |
211 | |
212 | pthread_mutex_lock(&he->hists->lock); | |
923c42c1 MG |
213 | } |
214 | ||
1758af10 | 215 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 216 | { |
1758af10 | 217 | struct hist_entry *he = top->sym_filter_entry; |
ce6f4fab | 218 | struct annotation *notes; |
923c42c1 | 219 | struct symbol *symbol; |
36532461 | 220 | int more; |
923c42c1 | 221 | |
ab81f3fd | 222 | if (!he) |
923c42c1 MG |
223 | return; |
224 | ||
ab81f3fd | 225 | symbol = he->ms.sym; |
ce6f4fab ACM |
226 | notes = symbol__annotation(symbol); |
227 | ||
228 | pthread_mutex_lock(¬es->lock); | |
229 | ||
230 | if (notes->src == NULL) | |
231 | goto out_unlock; | |
923c42c1 | 232 | |
7289f83c | 233 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 234 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 235 | |
db8fd07a | 236 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 ACM |
237 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
238 | if (top->zero) | |
239 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
36532461 | 240 | else |
1758af10 | 241 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); |
36532461 | 242 | if (more != 0) |
923c42c1 | 243 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
244 | out_unlock: |
245 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 246 | } |
07800601 | 247 | |
1758af10 | 248 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 249 | { |
8c3e10eb ACM |
250 | char bf[160]; |
251 | int printed = 0; | |
1758af10 | 252 | const int win_width = top->winsize.ws_col - 1; |
4ea062ed | 253 | struct hists *hists = evsel__hists(top->sym_evsel); |
d94b9430 | 254 | |
0f5486b5 | 255 | puts(CONSOLE_CLEAR); |
07800601 | 256 | |
1758af10 | 257 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 258 | printf("%s\n", bf); |
07800601 | 259 | |
1758af10 | 260 | perf_top__reset_sample_counters(top); |
07800601 | 261 | |
1a105f74 | 262 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 263 | |
4ea062ed ACM |
264 | if (hists->stats.nr_lost_warned != |
265 | hists->stats.nr_events[PERF_RECORD_LOST]) { | |
266 | hists->stats.nr_lost_warned = | |
267 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
268 | color_fprintf(stdout, PERF_COLOR_RED, |
269 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 270 | hists->stats.nr_lost_warned); |
ab81f3fd | 271 | ++printed; |
93fc64f1 ACM |
272 | } |
273 | ||
1758af10 ACM |
274 | if (top->sym_filter_entry) { |
275 | perf_top__show_details(top); | |
923c42c1 MG |
276 | return; |
277 | } | |
278 | ||
701937bd | 279 | if (top->zero) { |
4ea062ed | 280 | hists__delete_entries(hists); |
701937bd | 281 | } else { |
4ea062ed | 282 | hists__decay_entries(hists, top->hide_user_symbols, |
701937bd NK |
283 | top->hide_kernel_symbols); |
284 | } | |
285 | ||
4ea062ed | 286 | hists__collapse_resort(hists, NULL); |
740b97f9 | 287 | hists__output_resort(hists, NULL); |
701937bd | 288 | |
4ea062ed | 289 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 290 | putchar('\n'); |
4ea062ed | 291 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
fa5df943 | 292 | top->min_percent, stdout); |
07800601 IM |
293 | } |
294 | ||
923c42c1 MG |
295 | static void prompt_integer(int *target, const char *msg) |
296 | { | |
297 | char *buf = malloc(0), *p; | |
298 | size_t dummy = 0; | |
299 | int tmp; | |
300 | ||
301 | fprintf(stdout, "\n%s: ", msg); | |
302 | if (getline(&buf, &dummy, stdin) < 0) | |
303 | return; | |
304 | ||
305 | p = strchr(buf, '\n'); | |
306 | if (p) | |
307 | *p = 0; | |
308 | ||
309 | p = buf; | |
310 | while(*p) { | |
311 | if (!isdigit(*p)) | |
312 | goto out_free; | |
313 | p++; | |
314 | } | |
315 | tmp = strtoul(buf, NULL, 10); | |
316 | *target = tmp; | |
317 | out_free: | |
318 | free(buf); | |
319 | } | |
320 | ||
321 | static void prompt_percent(int *target, const char *msg) | |
322 | { | |
323 | int tmp = 0; | |
324 | ||
325 | prompt_integer(&tmp, msg); | |
326 | if (tmp >= 0 && tmp <= 100) | |
327 | *target = tmp; | |
328 | } | |
329 | ||
1758af10 | 330 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
331 | { |
332 | char *buf = malloc(0), *p; | |
1758af10 | 333 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 334 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 335 | struct rb_node *next; |
923c42c1 MG |
336 | size_t dummy = 0; |
337 | ||
338 | /* zero counters of active symbol */ | |
339 | if (syme) { | |
923c42c1 | 340 | __zero_source_counters(syme); |
1758af10 | 341 | top->sym_filter_entry = NULL; |
923c42c1 MG |
342 | } |
343 | ||
344 | fprintf(stdout, "\n%s: ", msg); | |
345 | if (getline(&buf, &dummy, stdin) < 0) | |
346 | goto out_free; | |
347 | ||
348 | p = strchr(buf, '\n'); | |
349 | if (p) | |
350 | *p = 0; | |
351 | ||
4ea062ed | 352 | next = rb_first(&hists->entries); |
ab81f3fd ACM |
353 | while (next) { |
354 | n = rb_entry(next, struct hist_entry, rb_node); | |
355 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
356 | found = n; | |
923c42c1 MG |
357 | break; |
358 | } | |
ab81f3fd | 359 | next = rb_next(&n->rb_node); |
923c42c1 MG |
360 | } |
361 | ||
362 | if (!found) { | |
66aeb6d5 | 363 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 364 | sleep(1); |
923c42c1 | 365 | } else |
1758af10 | 366 | perf_top__parse_source(top, found); |
923c42c1 MG |
367 | |
368 | out_free: | |
369 | free(buf); | |
370 | } | |
371 | ||
1758af10 | 372 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 373 | { |
091bd2e9 MG |
374 | char *name = NULL; |
375 | ||
1758af10 ACM |
376 | if (top->sym_filter_entry) { |
377 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
378 | name = sym->name; |
379 | } | |
380 | ||
381 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
382 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
383 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 384 | |
1758af10 | 385 | if (top->evlist->nr_entries > 1) |
7289f83c | 386 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 387 | |
1758af10 | 388 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 389 | |
1758af10 | 390 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
391 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
392 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 393 | |
8ffcda17 | 394 | fprintf(stdout, |
1a72cfa6 | 395 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 396 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
397 | fprintf(stdout, |
398 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
399 | top->hide_user_symbols ? "yes" : "no"); |
400 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
401 | fprintf(stdout, "\t[qQ] quit.\n"); |
402 | } | |
403 | ||
1758af10 | 404 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
405 | { |
406 | switch (c) { | |
407 | case 'd': | |
408 | case 'e': | |
409 | case 'f': | |
410 | case 'z': | |
411 | case 'q': | |
412 | case 'Q': | |
8ffcda17 ACM |
413 | case 'K': |
414 | case 'U': | |
6cff0e8d KS |
415 | case 'F': |
416 | case 's': | |
417 | case 'S': | |
091bd2e9 MG |
418 | return 1; |
419 | case 'E': | |
1758af10 | 420 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
421 | default: |
422 | break; | |
091bd2e9 MG |
423 | } |
424 | ||
425 | return 0; | |
923c42c1 MG |
426 | } |
427 | ||
11859e82 | 428 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 429 | { |
11859e82 ACM |
430 | bool ret = true; |
431 | ||
1758af10 | 432 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 433 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 434 | struct termios save; |
091bd2e9 | 435 | |
1758af10 | 436 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
437 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
438 | fflush(stdout); | |
439 | ||
3969cc09 | 440 | set_term_quiet_input(&save); |
091bd2e9 MG |
441 | |
442 | poll(&stdin_poll, 1, -1); | |
443 | c = getc(stdin); | |
444 | ||
445 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 446 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 447 | return ret; |
091bd2e9 MG |
448 | } |
449 | ||
923c42c1 MG |
450 | switch (c) { |
451 | case 'd': | |
1758af10 ACM |
452 | prompt_integer(&top->delay_secs, "Enter display delay"); |
453 | if (top->delay_secs < 1) | |
454 | top->delay_secs = 1; | |
923c42c1 MG |
455 | break; |
456 | case 'e': | |
1758af10 ACM |
457 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
458 | if (top->print_entries == 0) { | |
459 | struct sigaction act = { | |
460 | .sa_sigaction = perf_top__sig_winch, | |
461 | .sa_flags = SA_SIGINFO, | |
462 | }; | |
463 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
464 | sigaction(SIGWINCH, &act, NULL); | |
509605db | 465 | } else { |
3b6ed988 | 466 | signal(SIGWINCH, SIG_DFL); |
509605db | 467 | } |
923c42c1 MG |
468 | break; |
469 | case 'E': | |
1758af10 | 470 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
471 | /* Select 0 as the default event: */ |
472 | int counter = 0; | |
473 | ||
923c42c1 | 474 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 475 | |
0050f7aa | 476 | evlist__for_each(top->evlist, top->sym_evsel) |
7289f83c | 477 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 478 | |
ec52d976 | 479 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 480 | |
1758af10 | 481 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 482 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 483 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 484 | sleep(1); |
69aad6f1 | 485 | break; |
923c42c1 | 486 | } |
0050f7aa | 487 | evlist__for_each(top->evlist, top->sym_evsel) |
1758af10 | 488 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 489 | break; |
ec52d976 | 490 | } else |
0c21f736 | 491 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
492 | break; |
493 | case 'f': | |
1758af10 | 494 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
495 | break; |
496 | case 'F': | |
1758af10 ACM |
497 | prompt_percent(&top->sym_pcnt_filter, |
498 | "Enter details display event filter (percent)"); | |
923c42c1 | 499 | break; |
8ffcda17 | 500 | case 'K': |
1758af10 | 501 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 502 | break; |
923c42c1 MG |
503 | case 'q': |
504 | case 'Q': | |
505 | printf("exiting.\n"); | |
1758af10 ACM |
506 | if (top->dump_symtab) |
507 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
508 | ret = false; |
509 | break; | |
923c42c1 | 510 | case 's': |
1758af10 | 511 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
512 | break; |
513 | case 'S': | |
1758af10 | 514 | if (!top->sym_filter_entry) |
923c42c1 MG |
515 | break; |
516 | else { | |
1758af10 | 517 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 518 | |
1758af10 | 519 | top->sym_filter_entry = NULL; |
923c42c1 | 520 | __zero_source_counters(syme); |
923c42c1 MG |
521 | } |
522 | break; | |
8ffcda17 | 523 | case 'U': |
1758af10 | 524 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 525 | break; |
923c42c1 | 526 | case 'z': |
1758af10 | 527 | top->zero = !top->zero; |
923c42c1 | 528 | break; |
83a0944f IM |
529 | default: |
530 | break; | |
923c42c1 | 531 | } |
11859e82 ACM |
532 | |
533 | return ret; | |
923c42c1 MG |
534 | } |
535 | ||
ab81f3fd ACM |
536 | static void perf_top__sort_new_samples(void *arg) |
537 | { | |
538 | struct perf_top *t = arg; | |
4ea062ed ACM |
539 | struct hists *hists; |
540 | ||
ab81f3fd ACM |
541 | perf_top__reset_sample_counters(t); |
542 | ||
543 | if (t->evlist->selected != NULL) | |
544 | t->sym_evsel = t->evlist->selected; | |
545 | ||
4ea062ed ACM |
546 | hists = evsel__hists(t->sym_evsel); |
547 | ||
701937bd | 548 | if (t->zero) { |
4ea062ed | 549 | hists__delete_entries(hists); |
701937bd | 550 | } else { |
4ea062ed | 551 | hists__decay_entries(hists, t->hide_user_symbols, |
701937bd NK |
552 | t->hide_kernel_symbols); |
553 | } | |
554 | ||
4ea062ed | 555 | hists__collapse_resort(hists, NULL); |
740b97f9 | 556 | hists__output_resort(hists, NULL); |
ab81f3fd ACM |
557 | } |
558 | ||
1758af10 | 559 | static void *display_thread_tui(void *arg) |
c0443df1 | 560 | { |
0d37aa34 | 561 | struct perf_evsel *pos; |
1758af10 | 562 | struct perf_top *top = arg; |
ab81f3fd | 563 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
564 | struct hist_browser_timer hbt = { |
565 | .timer = perf_top__sort_new_samples, | |
566 | .arg = top, | |
567 | .refresh = top->delay_secs, | |
568 | }; | |
ab81f3fd | 569 | |
1758af10 | 570 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
571 | |
572 | /* | |
573 | * Initialize the uid_filter_str, in the future the TUI will allow | |
574 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
575 | * via --uid. | |
576 | */ | |
4ea062ed ACM |
577 | evlist__for_each(top->evlist, pos) { |
578 | struct hists *hists = evsel__hists(pos); | |
579 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
580 | } | |
0d37aa34 | 581 | |
fa5df943 | 582 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, |
68d80758 | 583 | &top->session->header.env); |
ab81f3fd | 584 | |
11859e82 | 585 | done = 1; |
c0443df1 ACM |
586 | return NULL; |
587 | } | |
588 | ||
4a1a9971 JO |
589 | static void display_sig(int sig __maybe_unused) |
590 | { | |
591 | done = 1; | |
592 | } | |
593 | ||
594 | static void display_setup_sig(void) | |
595 | { | |
596 | signal(SIGSEGV, display_sig); | |
597 | signal(SIGFPE, display_sig); | |
598 | signal(SIGINT, display_sig); | |
599 | signal(SIGQUIT, display_sig); | |
600 | signal(SIGTERM, display_sig); | |
601 | } | |
602 | ||
1758af10 | 603 | static void *display_thread(void *arg) |
07800601 | 604 | { |
0f5486b5 | 605 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 606 | struct termios save; |
1758af10 | 607 | struct perf_top *top = arg; |
923c42c1 MG |
608 | int delay_msecs, c; |
609 | ||
4a1a9971 | 610 | display_setup_sig(); |
3af6e338 | 611 | pthread__unblock_sigwinch(); |
923c42c1 | 612 | repeat: |
1758af10 | 613 | delay_msecs = top->delay_secs * 1000; |
9398c484 | 614 | set_term_quiet_input(&save); |
923c42c1 MG |
615 | /* trash return*/ |
616 | getc(stdin); | |
07800601 | 617 | |
11859e82 | 618 | while (!done) { |
1758af10 | 619 | perf_top__print_sym_table(top); |
3af6e338 ACM |
620 | /* |
621 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
622 | * refresh screen in both cases. | |
623 | */ | |
624 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
625 | case 0: | |
626 | continue; | |
627 | case -1: | |
628 | if (errno == EINTR) | |
629 | continue; | |
630 | /* Fall trhu */ | |
631 | default: | |
11859e82 ACM |
632 | c = getc(stdin); |
633 | tcsetattr(0, TCSAFLUSH, &save); | |
634 | ||
635 | if (perf_top__handle_keypress(top, c)) | |
636 | goto repeat; | |
637 | done = 1; | |
3af6e338 ACM |
638 | } |
639 | } | |
07800601 | 640 | |
4a1a9971 | 641 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
642 | return NULL; |
643 | } | |
644 | ||
e7110b9f | 645 | static int symbol_filter(struct map *map, struct symbol *sym) |
07800601 | 646 | { |
de04687f ACM |
647 | const char *name = sym->name; |
648 | ||
e7110b9f ACM |
649 | if (!map->dso->kernel) |
650 | return 0; | |
3a3393ef AB |
651 | /* |
652 | * ppc64 uses function descriptors and appends a '.' to the | |
653 | * start of every instruction address. Remove it. | |
654 | */ | |
655 | if (name[0] == '.') | |
656 | name++; | |
657 | ||
de04687f ACM |
658 | if (!strcmp(name, "_text") || |
659 | !strcmp(name, "_etext") || | |
660 | !strcmp(name, "_sinittext") || | |
661 | !strncmp("init_module", name, 11) || | |
662 | !strncmp("cleanup_module", name, 14) || | |
663 | strstr(name, "_text_start") || | |
664 | strstr(name, "_text_end")) | |
07800601 | 665 | return 1; |
07800601 | 666 | |
82d1deb0 DA |
667 | if (symbol__is_idle(sym)) |
668 | sym->ignore = true; | |
07800601 | 669 | |
07800601 IM |
670 | return 0; |
671 | } | |
672 | ||
7c50391f NK |
673 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
674 | struct addr_location *al, bool single, | |
675 | void *arg) | |
676 | { | |
677 | struct perf_top *top = arg; | |
678 | struct hist_entry *he = iter->he; | |
679 | struct perf_evsel *evsel = iter->evsel; | |
680 | ||
681 | if (sort__has_sym && single) { | |
682 | u64 ip = al->addr; | |
683 | ||
684 | if (al->map) | |
685 | ip = al->map->unmap_ip(al->map, ip); | |
686 | ||
687 | perf_top__record_precise_ip(top, he, evsel->idx, ip); | |
688 | } | |
689 | ||
690 | return 0; | |
691 | } | |
692 | ||
1758af10 ACM |
693 | static void perf_event__process_sample(struct perf_tool *tool, |
694 | const union perf_event *event, | |
7b27509f | 695 | struct perf_evsel *evsel, |
8115d60c | 696 | struct perf_sample *sample, |
743eb868 | 697 | struct machine *machine) |
07800601 | 698 | { |
1758af10 | 699 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 700 | struct addr_location al; |
19d4ac3c | 701 | int err; |
5b2bb75a | 702 | |
23346f21 | 703 | if (!machine && perf_guest) { |
6b118e92 DA |
704 | static struct intlist *seen; |
705 | ||
706 | if (!seen) | |
ffe0fb76 | 707 | seen = intlist__new(NULL); |
6b118e92 | 708 | |
ef89325f | 709 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 710 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
711 | sample->pid); |
712 | intlist__add(seen, sample->pid); | |
6b118e92 | 713 | } |
a1645ce1 ZY |
714 | return; |
715 | } | |
716 | ||
0c095715 | 717 | if (!machine) { |
11859e82 | 718 | pr_err("%u unprocessable samples recorded.\r", |
28a6b6aa | 719 | top->session->stats.nr_unprocessable_samples++); |
0c095715 JR |
720 | return; |
721 | } | |
722 | ||
8115d60c | 723 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 724 | top->exact_samples++; |
1676b8a0 | 725 | |
33db4568 | 726 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) |
1ed091c4 | 727 | return; |
07800601 | 728 | |
1758af10 | 729 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
730 | symbol_conf.kptr_restrict && |
731 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
732 | ui__warning( | |
733 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
734 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
735 | "Kernel%s samples will not be resolved.\n", | |
736 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
737 | " modules" : ""); | |
738 | if (use_browser <= 0) | |
739 | sleep(5); | |
1758af10 | 740 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
741 | } |
742 | ||
72b8fa17 | 743 | if (al.sym == NULL) { |
e4a338d0 | 744 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
745 | /* |
746 | * As we do lazy loading of symtabs we only will know if the | |
747 | * specified vmlinux file is invalid when we actually have a | |
748 | * hit in kernel space and then try to load it. So if we get | |
749 | * here and there are _no_ symbols in the DSO backing the | |
750 | * kernel map, bail out. | |
751 | * | |
752 | * We may never get here, for instance, if we use -K/ | |
753 | * --hide-kernel-symbols, even if the user specifies an | |
754 | * invalid --vmlinux ;-) | |
755 | */ | |
1758af10 | 756 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 757 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 758 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
759 | if (symbol_conf.vmlinux_name) { |
760 | ui__warning("The %s file can't be used.\n%s", | |
761 | symbol_conf.vmlinux_name, msg); | |
762 | } else { | |
763 | ui__warning("A vmlinux file was not found.\n%s", | |
764 | msg); | |
765 | } | |
766 | ||
767 | if (use_browser <= 0) | |
768 | sleep(5); | |
1758af10 | 769 | top->vmlinux_warned = true; |
72b8fa17 | 770 | } |
6cff0e8d KS |
771 | } |
772 | ||
ab81f3fd | 773 | if (al.sym == NULL || !al.sym->ignore) { |
4ea062ed | 774 | struct hists *hists = evsel__hists(evsel); |
7c50391f NK |
775 | struct hist_entry_iter iter = { |
776 | .add_entry_cb = hist_iter__top_callback, | |
777 | }; | |
70db7533 | 778 | |
7c50391f NK |
779 | if (symbol_conf.cumulate_callchain) |
780 | iter.ops = &hist_iter_cumulative; | |
781 | else | |
782 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 783 | |
4ea062ed | 784 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 785 | |
7c50391f NK |
786 | err = hist_entry_iter__add(&iter, &al, evsel, sample, |
787 | top->max_stack, top); | |
788 | if (err < 0) | |
789 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 790 | |
4ea062ed | 791 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 792 | } |
ab81f3fd ACM |
793 | |
794 | return; | |
07800601 IM |
795 | } |
796 | ||
1758af10 | 797 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 798 | { |
8d50e5b4 | 799 | struct perf_sample sample; |
7b27509f | 800 | struct perf_evsel *evsel; |
1758af10 | 801 | struct perf_session *session = top->session; |
8115d60c | 802 | union perf_event *event; |
743eb868 ACM |
803 | struct machine *machine; |
804 | u8 origin; | |
5538beca | 805 | int ret; |
07800601 | 806 | |
1758af10 | 807 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 808 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
809 | if (ret) { |
810 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 811 | goto next_event; |
5538beca | 812 | } |
04391deb | 813 | |
1758af10 | 814 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
815 | assert(evsel != NULL); |
816 | ||
743eb868 ACM |
817 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
818 | ||
5b2bb75a | 819 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 820 | ++top->samples; |
743eb868 ACM |
821 | |
822 | switch (origin) { | |
823 | case PERF_RECORD_MISC_USER: | |
1758af10 ACM |
824 | ++top->us_samples; |
825 | if (top->hide_user_symbols) | |
8e50d384 | 826 | goto next_event; |
34ba5122 | 827 | machine = &session->machines.host; |
743eb868 ACM |
828 | break; |
829 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
830 | ++top->kernel_samples; |
831 | if (top->hide_kernel_symbols) | |
8e50d384 | 832 | goto next_event; |
34ba5122 | 833 | machine = &session->machines.host; |
743eb868 ACM |
834 | break; |
835 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 836 | ++top->guest_kernel_samples; |
ef89325f AH |
837 | machine = perf_session__find_machine(session, |
838 | sample.pid); | |
743eb868 ACM |
839 | break; |
840 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 841 | ++top->guest_us_samples; |
743eb868 ACM |
842 | /* |
843 | * TODO: we don't process guest user from host side | |
844 | * except simple counting. | |
845 | */ | |
846 | /* Fall thru */ | |
847 | default: | |
8e50d384 | 848 | goto next_event; |
743eb868 ACM |
849 | } |
850 | ||
851 | ||
1758af10 ACM |
852 | if (event->header.type == PERF_RECORD_SAMPLE) { |
853 | perf_event__process_sample(&top->tool, event, evsel, | |
854 | &sample, machine); | |
855 | } else if (event->header.type < PERF_RECORD_MAX) { | |
4ea062ed | 856 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); |
162f0bef | 857 | machine__process_event(machine, event, &sample); |
7b27509f | 858 | } else |
28a6b6aa | 859 | ++session->stats.nr_unknown_events; |
8e50d384 ZZ |
860 | next_event: |
861 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 862 | } |
07800601 IM |
863 | } |
864 | ||
1758af10 | 865 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 866 | { |
70db7533 ACM |
867 | int i; |
868 | ||
1758af10 ACM |
869 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
870 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
871 | } |
872 | ||
11859e82 | 873 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 874 | { |
56e52e85 | 875 | char msg[512]; |
6a4bb04c | 876 | struct perf_evsel *counter; |
1758af10 | 877 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 878 | struct record_opts *opts = &top->record_opts; |
727ab04e | 879 | |
2376c67a | 880 | perf_evlist__config(evlist, opts); |
7e4ff9e3 | 881 | |
0050f7aa | 882 | evlist__for_each(evlist, counter) { |
72cb7013 | 883 | try_again: |
1758af10 | 884 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 885 | top->evlist->threads) < 0) { |
56e52e85 | 886 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
d6d901c2 | 887 | if (verbose) |
c0a54341 | 888 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
889 | goto try_again; |
890 | } | |
c286c419 | 891 | |
56e52e85 ACM |
892 | perf_evsel__open_strerror(counter, &opts->target, |
893 | errno, msg, sizeof(msg)); | |
894 | ui__error("%s\n", msg); | |
c286c419 | 895 | goto out_err; |
d6d901c2 | 896 | } |
716c69fe | 897 | } |
70db7533 | 898 | |
2376c67a | 899 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 900 | ui__error("Failed to mmap with %d (%s)\n", |
809adea6 | 901 | errno, strerror_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
902 | goto out_err; |
903 | } | |
904 | ||
11859e82 | 905 | return 0; |
c286c419 ACM |
906 | |
907 | out_err: | |
11859e82 | 908 | return -1; |
716c69fe IM |
909 | } |
910 | ||
8f0f684b | 911 | static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) |
19d4ac3c | 912 | { |
8f0f684b | 913 | if (!sort__has_sym) { |
19d4ac3c | 914 | if (symbol_conf.use_callchain) { |
3780f488 | 915 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
916 | return -EINVAL; |
917 | } | |
2376c67a | 918 | } else if (callchain_param.mode != CHAIN_NONE) { |
19d4ac3c | 919 | if (callchain_register_param(&callchain_param) < 0) { |
3780f488 | 920 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
921 | return -EINVAL; |
922 | } | |
923 | } | |
924 | ||
925 | return 0; | |
926 | } | |
927 | ||
1758af10 | 928 | static int __cmd_top(struct perf_top *top) |
716c69fe | 929 | { |
b4006796 | 930 | struct record_opts *opts = &top->record_opts; |
716c69fe | 931 | pthread_t thread; |
19d4ac3c | 932 | int ret; |
f5fc1412 | 933 | |
6a4d98d7 | 934 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 935 | if (top->session == NULL) |
52e02834 | 936 | return -1; |
07800601 | 937 | |
36035f78 AH |
938 | machines__set_symbol_filter(&top->session->machines, symbol_filter); |
939 | ||
0d3942db SB |
940 | if (!objdump_path) { |
941 | ret = perf_session_env__lookup_objdump(&top->session->header.env); | |
942 | if (ret) | |
943 | goto out_delete; | |
944 | } | |
945 | ||
1758af10 | 946 | ret = perf_top__setup_sample_type(top); |
19d4ac3c ACM |
947 | if (ret) |
948 | goto out_delete; | |
949 | ||
a33fbd56 ACM |
950 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
951 | top->evlist->threads, false); | |
11859e82 ACM |
952 | ret = perf_top__start_counters(top); |
953 | if (ret) | |
954 | goto out_delete; | |
955 | ||
1758af10 | 956 | top->session->evlist = top->evlist; |
7b56cce2 | 957 | perf_session__set_id_hdr_size(top->session); |
07800601 | 958 | |
2376c67a ACM |
959 | /* |
960 | * When perf is starting the traced process, all the events (apart from | |
961 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
962 | * prematurely enabling them. | |
963 | * | |
964 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
965 | * so leave the check here. | |
966 | */ | |
602ad878 | 967 | if (!target__none(&opts->target)) |
2376c67a ACM |
968 | perf_evlist__enable(top->evlist); |
969 | ||
2f01190a | 970 | /* Wait for a minimal set of events before starting the snapshot */ |
f66a889d | 971 | perf_evlist__poll(top->evlist, 100); |
2f01190a | 972 | |
1758af10 | 973 | perf_top__mmap_read(top); |
2f01190a | 974 | |
11859e82 | 975 | ret = -1; |
c0443df1 | 976 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 977 | display_thread), top)) { |
3780f488 | 978 | ui__error("Could not create display thread.\n"); |
11859e82 | 979 | goto out_delete; |
07800601 IM |
980 | } |
981 | ||
1758af10 | 982 | if (top->realtime_prio) { |
07800601 IM |
983 | struct sched_param param; |
984 | ||
1758af10 | 985 | param.sched_priority = top->realtime_prio; |
07800601 | 986 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 987 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 988 | goto out_join; |
07800601 IM |
989 | } |
990 | } | |
991 | ||
11859e82 | 992 | while (!done) { |
1758af10 | 993 | u64 hits = top->samples; |
07800601 | 994 | |
1758af10 | 995 | perf_top__mmap_read(top); |
07800601 | 996 | |
1758af10 | 997 | if (hits == top->samples) |
f66a889d | 998 | ret = perf_evlist__poll(top->evlist, 100); |
07800601 IM |
999 | } |
1000 | ||
11859e82 | 1001 | ret = 0; |
ae256fa2 JO |
1002 | out_join: |
1003 | pthread_join(thread, NULL); | |
19d4ac3c | 1004 | out_delete: |
1758af10 ACM |
1005 | perf_session__delete(top->session); |
1006 | top->session = NULL; | |
19d4ac3c | 1007 | |
11859e82 | 1008 | return ret; |
19d4ac3c ACM |
1009 | } |
1010 | ||
1011 | static int | |
ae779a63 | 1012 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1013 | { |
19d4ac3c | 1014 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1015 | return record_callchain_opt(opt, arg, unset); |
1016 | } | |
19d4ac3c | 1017 | |
ae779a63 JO |
1018 | static int |
1019 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1020 | { | |
1021 | symbol_conf.use_callchain = true; | |
2376c67a | 1022 | return record_parse_callchain_opt(opt, arg, unset); |
07800601 | 1023 | } |
b456bae0 | 1024 | |
eb853e80 JO |
1025 | static int perf_top_config(const char *var, const char *value, void *cb) |
1026 | { | |
eb853e80 | 1027 | if (!strcmp(var, "top.call-graph")) |
5a2e5e85 | 1028 | var = "call-graph.record-mode"; /* fall-through */ |
104ac991 NK |
1029 | if (!strcmp(var, "top.children")) { |
1030 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1031 | return 0; | |
1032 | } | |
eb853e80 JO |
1033 | |
1034 | return perf_default_config(var, value, cb); | |
1035 | } | |
1036 | ||
fa5df943 NK |
1037 | static int |
1038 | parse_percent_limit(const struct option *opt, const char *arg, | |
1039 | int unset __maybe_unused) | |
1040 | { | |
1041 | struct perf_top *top = opt->value; | |
1042 | ||
1043 | top->min_percent = strtof(arg, NULL); | |
1044 | return 0; | |
1045 | } | |
1046 | ||
1d037ca1 | 1047 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1758af10 | 1048 | { |
16ad2ffb | 1049 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1050 | struct perf_top top = { |
1051 | .count_filter = 5, | |
1052 | .delay_secs = 2, | |
2376c67a ACM |
1053 | .record_opts = { |
1054 | .mmap_pages = UINT_MAX, | |
1055 | .user_freq = UINT_MAX, | |
1056 | .user_interval = ULLONG_MAX, | |
1057 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1058 | .target = { |
2376c67a ACM |
1059 | .uses_mmap = true, |
1060 | }, | |
d1cb9fce | 1061 | }, |
5dbb6e81 | 1062 | .max_stack = PERF_MAX_STACK_DEPTH, |
2376c67a | 1063 | .sym_pcnt_filter = 5, |
1758af10 | 1064 | }; |
b4006796 | 1065 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1066 | struct target *target = &opts->target; |
1758af10 | 1067 | const struct option options[] = { |
8c3e10eb | 1068 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1069 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1070 | parse_events_option), |
2376c67a ACM |
1071 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1072 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1073 | "profile events on existing process id"), |
2376c67a | 1074 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1075 | "profile events on existing thread id"), |
2376c67a | 1076 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1077 | "system-wide collection from all CPUs"), |
2376c67a | 1078 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1079 | "list of cpus to monitor"), |
b32d133a ACM |
1080 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1081 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1082 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1083 | "don't load vmlinux even if found"), | |
8c3e10eb | 1084 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1085 | "hide kernel symbols"), |
994a1f78 JO |
1086 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1087 | "number of mmap data pages", | |
1088 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1089 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1090 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1091 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1092 | "number of seconds to delay between refreshes"), |
1758af10 | 1093 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1094 | "dump the symbol table used for profiling"), |
8c3e10eb | 1095 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1096 | "only display functions with more events than this"), |
bf80669e | 1097 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1098 | "put the counters into a counter group"), |
2376c67a ACM |
1099 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1100 | "child tasks do not inherit counters"), | |
1758af10 | 1101 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1102 | "symbol to annotate"), |
2376c67a ACM |
1103 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1104 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1105 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1106 | "display this many functions"), |
8c3e10eb | 1107 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1108 | "hide user symbols"), |
1758af10 ACM |
1109 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1110 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1111 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1112 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1113 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1114 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1115 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1116 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1117 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1118 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1119 | "Show a column with the number of samples"), | |
bf80669e | 1120 | OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, |
ae779a63 JO |
1121 | NULL, "enables call-graph recording", |
1122 | &callchain_opt), | |
1123 | OPT_CALLBACK(0, "call-graph", &top.record_opts, | |
1124 | "mode[,dump_size]", record_callchain_help, | |
1125 | &parse_callchain_opt), | |
1432ec34 NK |
1126 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1127 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1128 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1129 | "Set the maximum stack depth when parsing the callchain. " | |
1130 | "Default: " __stringify(PERF_MAX_STACK_DEPTH)), | |
b21484f1 GP |
1131 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1132 | "ignore callees of these functions in call graphs", | |
1133 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1134 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1135 | "Show a column with the sum of periods"), | |
1136 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1137 | "only consider symbols in these dsos"), | |
1138 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1139 | "only consider symbols in these comms"), | |
1140 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1141 | "only consider these symbols"), | |
64c6f0c7 ACM |
1142 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1143 | "Interleave source code with assembly code (default)"), | |
1144 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1145 | "Display raw encoding of assembly instructions (default)"), | |
763122ad AK |
1146 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1147 | "Enable kernel symbol demangling"), | |
0d3942db SB |
1148 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1149 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1150 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1151 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1152 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1153 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1154 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1155 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1156 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1157 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1158 | "width[,width...]", | |
1159 | "don't try to adjust column width, use these fixed values"), | |
b456bae0 | 1160 | OPT_END() |
1758af10 | 1161 | }; |
be772842 ACM |
1162 | const char * const top_usage[] = { |
1163 | "perf top [<options>]", | |
1164 | NULL | |
1165 | }; | |
a635fc51 ACM |
1166 | int status = hists__init(); |
1167 | ||
1168 | if (status < 0) | |
1169 | return status; | |
b456bae0 | 1170 | |
334fe7a3 | 1171 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1172 | if (top.evlist == NULL) |
361c99a6 ACM |
1173 | return -ENOMEM; |
1174 | ||
eb853e80 JO |
1175 | perf_config(perf_top_config, &top); |
1176 | ||
b456bae0 IM |
1177 | argc = parse_options(argc, argv, options, top_usage, 0); |
1178 | if (argc) | |
1179 | usage_with_options(top_usage, options); | |
1180 | ||
512ae1bd | 1181 | sort__mode = SORT_MODE__TOP; |
6fe8c26d NK |
1182 | /* display thread wants entries to be collapsed in a different tree */ |
1183 | sort__need_collapse = 1; | |
ab81f3fd | 1184 | |
d37a92dc | 1185 | if (setup_sorting() < 0) { |
6fe8c26d NK |
1186 | if (sort_order) |
1187 | parse_options_usage(top_usage, options, "s", 1); | |
1188 | if (field_order) | |
1189 | parse_options_usage(sort_order ? NULL : top_usage, | |
1190 | options, "fields", 0); | |
d37a92dc NK |
1191 | goto out_delete_evlist; |
1192 | } | |
ab81f3fd | 1193 | |
1758af10 | 1194 | if (top.use_stdio) |
c0443df1 | 1195 | use_browser = 0; |
1758af10 | 1196 | else if (top.use_tui) |
c0443df1 ACM |
1197 | use_browser = 1; |
1198 | ||
1199 | setup_browser(false); | |
1200 | ||
602ad878 | 1201 | status = target__validate(target); |
16ad2ffb | 1202 | if (status) { |
602ad878 | 1203 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1204 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1205 | } |
1206 | ||
602ad878 | 1207 | status = target__parse_uid(target); |
16ad2ffb NK |
1208 | if (status) { |
1209 | int saved_errno = errno; | |
4bd0f2d2 | 1210 | |
602ad878 | 1211 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1212 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1213 | |
1214 | status = -saved_errno; | |
0d37aa34 | 1215 | goto out_delete_evlist; |
16ad2ffb | 1216 | } |
0d37aa34 | 1217 | |
602ad878 | 1218 | if (target__none(target)) |
2376c67a | 1219 | target->system_wide = true; |
10b47d54 | 1220 | |
2376c67a | 1221 | if (perf_evlist__create_maps(top.evlist, target) < 0) |
7e2ed097 ACM |
1222 | usage_with_options(top_usage, options); |
1223 | ||
8c3e10eb ACM |
1224 | if (!top.evlist->nr_entries && |
1225 | perf_evlist__add_default(top.evlist) < 0) { | |
3780f488 | 1226 | ui__error("Not enough memory for event selector list\n"); |
03ad9747 | 1227 | goto out_delete_evlist; |
69aad6f1 | 1228 | } |
5a8e5a30 | 1229 | |
d04b35f8 ACM |
1230 | symbol_conf.nr_events = top.evlist->nr_entries; |
1231 | ||
8c3e10eb ACM |
1232 | if (top.delay_secs < 1) |
1233 | top.delay_secs = 1; | |
2f335a02 | 1234 | |
b4006796 | 1235 | if (record_opts__config(opts)) { |
2376c67a | 1236 | status = -EINVAL; |
03ad9747 | 1237 | goto out_delete_evlist; |
69aad6f1 ACM |
1238 | } |
1239 | ||
0c21f736 | 1240 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1241 | |
1432ec34 NK |
1242 | if (!symbol_conf.use_callchain) { |
1243 | symbol_conf.cumulate_callchain = false; | |
1244 | perf_hpp__cancel_cumulate(); | |
1245 | } | |
1246 | ||
ab81f3fd | 1247 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1248 | |
1249 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
0a7e6d1b | 1250 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1251 | return -1; |
1252 | ||
08e71542 | 1253 | sort__setup_elide(stdout); |
ab81f3fd | 1254 | |
1758af10 | 1255 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1256 | if (top.print_entries == 0) { |
1758af10 ACM |
1257 | struct sigaction act = { |
1258 | .sa_sigaction = perf_top__sig_winch, | |
1259 | .sa_flags = SA_SIGINFO, | |
1260 | }; | |
1261 | perf_top__update_print_entries(&top); | |
1262 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1263 | } |
1264 | ||
1758af10 | 1265 | status = __cmd_top(&top); |
806fb630 | 1266 | |
0d37aa34 | 1267 | out_delete_evlist: |
8c3e10eb | 1268 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1269 | |
1270 | return status; | |
b456bae0 | 1271 | } |