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