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); | |
48000a1a | 168 | |
31d68e7b ACM |
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 | 237 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
5d484f99 ACM |
238 | |
239 | if (top->evlist->enabled) { | |
240 | if (top->zero) | |
241 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
242 | else | |
243 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
244 | } | |
36532461 | 245 | if (more != 0) |
923c42c1 | 246 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
247 | out_unlock: |
248 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 249 | } |
07800601 | 250 | |
1758af10 | 251 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 252 | { |
8c3e10eb ACM |
253 | char bf[160]; |
254 | int printed = 0; | |
1758af10 | 255 | const int win_width = top->winsize.ws_col - 1; |
4ea062ed | 256 | struct hists *hists = evsel__hists(top->sym_evsel); |
d94b9430 | 257 | |
0f5486b5 | 258 | puts(CONSOLE_CLEAR); |
07800601 | 259 | |
1758af10 | 260 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 261 | printf("%s\n", bf); |
07800601 | 262 | |
1758af10 | 263 | perf_top__reset_sample_counters(top); |
07800601 | 264 | |
1a105f74 | 265 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 266 | |
4ea062ed ACM |
267 | if (hists->stats.nr_lost_warned != |
268 | hists->stats.nr_events[PERF_RECORD_LOST]) { | |
269 | hists->stats.nr_lost_warned = | |
270 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
271 | color_fprintf(stdout, PERF_COLOR_RED, |
272 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 273 | hists->stats.nr_lost_warned); |
ab81f3fd | 274 | ++printed; |
93fc64f1 ACM |
275 | } |
276 | ||
1758af10 ACM |
277 | if (top->sym_filter_entry) { |
278 | perf_top__show_details(top); | |
923c42c1 MG |
279 | return; |
280 | } | |
281 | ||
5d484f99 ACM |
282 | if (top->evlist->enabled) { |
283 | if (top->zero) { | |
284 | hists__delete_entries(hists); | |
285 | } else { | |
286 | hists__decay_entries(hists, top->hide_user_symbols, | |
287 | top->hide_kernel_symbols); | |
288 | } | |
701937bd NK |
289 | } |
290 | ||
4ea062ed | 291 | hists__collapse_resort(hists, NULL); |
740b97f9 | 292 | hists__output_resort(hists, NULL); |
701937bd | 293 | |
4ea062ed | 294 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 295 | putchar('\n'); |
4ea062ed | 296 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
fa5df943 | 297 | top->min_percent, stdout); |
07800601 IM |
298 | } |
299 | ||
923c42c1 MG |
300 | static void prompt_integer(int *target, const char *msg) |
301 | { | |
302 | char *buf = malloc(0), *p; | |
303 | size_t dummy = 0; | |
304 | int tmp; | |
305 | ||
306 | fprintf(stdout, "\n%s: ", msg); | |
307 | if (getline(&buf, &dummy, stdin) < 0) | |
308 | return; | |
309 | ||
310 | p = strchr(buf, '\n'); | |
311 | if (p) | |
312 | *p = 0; | |
313 | ||
314 | p = buf; | |
315 | while(*p) { | |
316 | if (!isdigit(*p)) | |
317 | goto out_free; | |
318 | p++; | |
319 | } | |
320 | tmp = strtoul(buf, NULL, 10); | |
321 | *target = tmp; | |
322 | out_free: | |
323 | free(buf); | |
324 | } | |
325 | ||
326 | static void prompt_percent(int *target, const char *msg) | |
327 | { | |
328 | int tmp = 0; | |
329 | ||
330 | prompt_integer(&tmp, msg); | |
331 | if (tmp >= 0 && tmp <= 100) | |
332 | *target = tmp; | |
333 | } | |
334 | ||
1758af10 | 335 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
336 | { |
337 | char *buf = malloc(0), *p; | |
1758af10 | 338 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 339 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 340 | struct rb_node *next; |
923c42c1 MG |
341 | size_t dummy = 0; |
342 | ||
343 | /* zero counters of active symbol */ | |
344 | if (syme) { | |
923c42c1 | 345 | __zero_source_counters(syme); |
1758af10 | 346 | top->sym_filter_entry = NULL; |
923c42c1 MG |
347 | } |
348 | ||
349 | fprintf(stdout, "\n%s: ", msg); | |
350 | if (getline(&buf, &dummy, stdin) < 0) | |
351 | goto out_free; | |
352 | ||
353 | p = strchr(buf, '\n'); | |
354 | if (p) | |
355 | *p = 0; | |
356 | ||
4ea062ed | 357 | next = rb_first(&hists->entries); |
ab81f3fd ACM |
358 | while (next) { |
359 | n = rb_entry(next, struct hist_entry, rb_node); | |
360 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
361 | found = n; | |
923c42c1 MG |
362 | break; |
363 | } | |
ab81f3fd | 364 | next = rb_next(&n->rb_node); |
923c42c1 MG |
365 | } |
366 | ||
367 | if (!found) { | |
66aeb6d5 | 368 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 369 | sleep(1); |
923c42c1 | 370 | } else |
1758af10 | 371 | perf_top__parse_source(top, found); |
923c42c1 MG |
372 | |
373 | out_free: | |
374 | free(buf); | |
375 | } | |
376 | ||
1758af10 | 377 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 378 | { |
091bd2e9 MG |
379 | char *name = NULL; |
380 | ||
1758af10 ACM |
381 | if (top->sym_filter_entry) { |
382 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
383 | name = sym->name; |
384 | } | |
385 | ||
386 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
387 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
388 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 389 | |
1758af10 | 390 | if (top->evlist->nr_entries > 1) |
7289f83c | 391 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 392 | |
1758af10 | 393 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 394 | |
1758af10 | 395 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
396 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
397 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 398 | |
8ffcda17 | 399 | fprintf(stdout, |
1a72cfa6 | 400 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 401 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
402 | fprintf(stdout, |
403 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
404 | top->hide_user_symbols ? "yes" : "no"); |
405 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
406 | fprintf(stdout, "\t[qQ] quit.\n"); |
407 | } | |
408 | ||
1758af10 | 409 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
410 | { |
411 | switch (c) { | |
412 | case 'd': | |
413 | case 'e': | |
414 | case 'f': | |
415 | case 'z': | |
416 | case 'q': | |
417 | case 'Q': | |
8ffcda17 ACM |
418 | case 'K': |
419 | case 'U': | |
6cff0e8d KS |
420 | case 'F': |
421 | case 's': | |
422 | case 'S': | |
091bd2e9 MG |
423 | return 1; |
424 | case 'E': | |
1758af10 | 425 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
426 | default: |
427 | break; | |
091bd2e9 MG |
428 | } |
429 | ||
430 | return 0; | |
923c42c1 MG |
431 | } |
432 | ||
11859e82 | 433 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 434 | { |
11859e82 ACM |
435 | bool ret = true; |
436 | ||
1758af10 | 437 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 438 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 439 | struct termios save; |
091bd2e9 | 440 | |
1758af10 | 441 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
442 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
443 | fflush(stdout); | |
444 | ||
3969cc09 | 445 | set_term_quiet_input(&save); |
091bd2e9 MG |
446 | |
447 | poll(&stdin_poll, 1, -1); | |
448 | c = getc(stdin); | |
449 | ||
450 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 451 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 452 | return ret; |
091bd2e9 MG |
453 | } |
454 | ||
923c42c1 MG |
455 | switch (c) { |
456 | case 'd': | |
1758af10 ACM |
457 | prompt_integer(&top->delay_secs, "Enter display delay"); |
458 | if (top->delay_secs < 1) | |
459 | top->delay_secs = 1; | |
923c42c1 MG |
460 | break; |
461 | case 'e': | |
1758af10 ACM |
462 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
463 | if (top->print_entries == 0) { | |
464 | struct sigaction act = { | |
465 | .sa_sigaction = perf_top__sig_winch, | |
466 | .sa_flags = SA_SIGINFO, | |
467 | }; | |
468 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
469 | sigaction(SIGWINCH, &act, NULL); | |
509605db | 470 | } else { |
3b6ed988 | 471 | signal(SIGWINCH, SIG_DFL); |
509605db | 472 | } |
923c42c1 MG |
473 | break; |
474 | case 'E': | |
1758af10 | 475 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
476 | /* Select 0 as the default event: */ |
477 | int counter = 0; | |
478 | ||
923c42c1 | 479 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 480 | |
0050f7aa | 481 | evlist__for_each(top->evlist, top->sym_evsel) |
7289f83c | 482 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 483 | |
ec52d976 | 484 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 485 | |
1758af10 | 486 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 487 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 488 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 489 | sleep(1); |
69aad6f1 | 490 | break; |
923c42c1 | 491 | } |
0050f7aa | 492 | evlist__for_each(top->evlist, top->sym_evsel) |
1758af10 | 493 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 494 | break; |
ec52d976 | 495 | } else |
0c21f736 | 496 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
497 | break; |
498 | case 'f': | |
1758af10 | 499 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
500 | break; |
501 | case 'F': | |
1758af10 ACM |
502 | prompt_percent(&top->sym_pcnt_filter, |
503 | "Enter details display event filter (percent)"); | |
923c42c1 | 504 | break; |
8ffcda17 | 505 | case 'K': |
1758af10 | 506 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 507 | break; |
923c42c1 MG |
508 | case 'q': |
509 | case 'Q': | |
510 | printf("exiting.\n"); | |
1758af10 ACM |
511 | if (top->dump_symtab) |
512 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
513 | ret = false; |
514 | break; | |
923c42c1 | 515 | case 's': |
1758af10 | 516 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
517 | break; |
518 | case 'S': | |
1758af10 | 519 | if (!top->sym_filter_entry) |
923c42c1 MG |
520 | break; |
521 | else { | |
1758af10 | 522 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 523 | |
1758af10 | 524 | top->sym_filter_entry = NULL; |
923c42c1 | 525 | __zero_source_counters(syme); |
923c42c1 MG |
526 | } |
527 | break; | |
8ffcda17 | 528 | case 'U': |
1758af10 | 529 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 530 | break; |
923c42c1 | 531 | case 'z': |
1758af10 | 532 | top->zero = !top->zero; |
923c42c1 | 533 | break; |
83a0944f IM |
534 | default: |
535 | break; | |
923c42c1 | 536 | } |
11859e82 ACM |
537 | |
538 | return ret; | |
923c42c1 MG |
539 | } |
540 | ||
ab81f3fd ACM |
541 | static void perf_top__sort_new_samples(void *arg) |
542 | { | |
543 | struct perf_top *t = arg; | |
4ea062ed ACM |
544 | struct hists *hists; |
545 | ||
ab81f3fd ACM |
546 | perf_top__reset_sample_counters(t); |
547 | ||
548 | if (t->evlist->selected != NULL) | |
549 | t->sym_evsel = t->evlist->selected; | |
550 | ||
4ea062ed ACM |
551 | hists = evsel__hists(t->sym_evsel); |
552 | ||
5d484f99 ACM |
553 | if (t->evlist->enabled) { |
554 | if (t->zero) { | |
555 | hists__delete_entries(hists); | |
556 | } else { | |
557 | hists__decay_entries(hists, t->hide_user_symbols, | |
558 | t->hide_kernel_symbols); | |
559 | } | |
701937bd NK |
560 | } |
561 | ||
4ea062ed | 562 | hists__collapse_resort(hists, NULL); |
740b97f9 | 563 | hists__output_resort(hists, NULL); |
ab81f3fd ACM |
564 | } |
565 | ||
1758af10 | 566 | static void *display_thread_tui(void *arg) |
c0443df1 | 567 | { |
0d37aa34 | 568 | struct perf_evsel *pos; |
1758af10 | 569 | struct perf_top *top = arg; |
ab81f3fd | 570 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
571 | struct hist_browser_timer hbt = { |
572 | .timer = perf_top__sort_new_samples, | |
573 | .arg = top, | |
574 | .refresh = top->delay_secs, | |
575 | }; | |
ab81f3fd | 576 | |
1758af10 | 577 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
578 | |
579 | /* | |
580 | * Initialize the uid_filter_str, in the future the TUI will allow | |
581 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
582 | * via --uid. | |
583 | */ | |
4ea062ed ACM |
584 | evlist__for_each(top->evlist, pos) { |
585 | struct hists *hists = evsel__hists(pos); | |
586 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
587 | } | |
0d37aa34 | 588 | |
13d1e536 NK |
589 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
590 | top->min_percent, | |
591 | &top->session->header.env); | |
ab81f3fd | 592 | |
11859e82 | 593 | done = 1; |
c0443df1 ACM |
594 | return NULL; |
595 | } | |
596 | ||
4a1a9971 JO |
597 | static void display_sig(int sig __maybe_unused) |
598 | { | |
599 | done = 1; | |
600 | } | |
601 | ||
602 | static void display_setup_sig(void) | |
603 | { | |
604 | signal(SIGSEGV, display_sig); | |
605 | signal(SIGFPE, display_sig); | |
606 | signal(SIGINT, display_sig); | |
607 | signal(SIGQUIT, display_sig); | |
608 | signal(SIGTERM, display_sig); | |
609 | } | |
610 | ||
1758af10 | 611 | static void *display_thread(void *arg) |
07800601 | 612 | { |
0f5486b5 | 613 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 614 | struct termios save; |
1758af10 | 615 | struct perf_top *top = arg; |
923c42c1 MG |
616 | int delay_msecs, c; |
617 | ||
4a1a9971 | 618 | display_setup_sig(); |
3af6e338 | 619 | pthread__unblock_sigwinch(); |
923c42c1 | 620 | repeat: |
1758af10 | 621 | delay_msecs = top->delay_secs * 1000; |
9398c484 | 622 | set_term_quiet_input(&save); |
923c42c1 MG |
623 | /* trash return*/ |
624 | getc(stdin); | |
07800601 | 625 | |
11859e82 | 626 | while (!done) { |
1758af10 | 627 | perf_top__print_sym_table(top); |
3af6e338 ACM |
628 | /* |
629 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
630 | * refresh screen in both cases. | |
631 | */ | |
632 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
633 | case 0: | |
634 | continue; | |
635 | case -1: | |
636 | if (errno == EINTR) | |
637 | continue; | |
638 | /* Fall trhu */ | |
639 | default: | |
11859e82 ACM |
640 | c = getc(stdin); |
641 | tcsetattr(0, TCSAFLUSH, &save); | |
642 | ||
643 | if (perf_top__handle_keypress(top, c)) | |
644 | goto repeat; | |
645 | done = 1; | |
3af6e338 ACM |
646 | } |
647 | } | |
07800601 | 648 | |
4a1a9971 | 649 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
650 | return NULL; |
651 | } | |
652 | ||
e7110b9f | 653 | static int symbol_filter(struct map *map, struct symbol *sym) |
07800601 | 654 | { |
de04687f ACM |
655 | const char *name = sym->name; |
656 | ||
e7110b9f ACM |
657 | if (!map->dso->kernel) |
658 | return 0; | |
3a3393ef AB |
659 | /* |
660 | * ppc64 uses function descriptors and appends a '.' to the | |
661 | * start of every instruction address. Remove it. | |
662 | */ | |
663 | if (name[0] == '.') | |
664 | name++; | |
665 | ||
de04687f ACM |
666 | if (!strcmp(name, "_text") || |
667 | !strcmp(name, "_etext") || | |
668 | !strcmp(name, "_sinittext") || | |
669 | !strncmp("init_module", name, 11) || | |
670 | !strncmp("cleanup_module", name, 14) || | |
671 | strstr(name, "_text_start") || | |
672 | strstr(name, "_text_end")) | |
07800601 | 673 | return 1; |
07800601 | 674 | |
82d1deb0 DA |
675 | if (symbol__is_idle(sym)) |
676 | sym->ignore = true; | |
07800601 | 677 | |
07800601 IM |
678 | return 0; |
679 | } | |
680 | ||
7c50391f NK |
681 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
682 | struct addr_location *al, bool single, | |
683 | void *arg) | |
684 | { | |
685 | struct perf_top *top = arg; | |
686 | struct hist_entry *he = iter->he; | |
687 | struct perf_evsel *evsel = iter->evsel; | |
688 | ||
689 | if (sort__has_sym && single) { | |
690 | u64 ip = al->addr; | |
691 | ||
692 | if (al->map) | |
693 | ip = al->map->unmap_ip(al->map, ip); | |
694 | ||
695 | perf_top__record_precise_ip(top, he, evsel->idx, ip); | |
696 | } | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
1758af10 ACM |
701 | static void perf_event__process_sample(struct perf_tool *tool, |
702 | const union perf_event *event, | |
7b27509f | 703 | struct perf_evsel *evsel, |
8115d60c | 704 | struct perf_sample *sample, |
743eb868 | 705 | struct machine *machine) |
07800601 | 706 | { |
1758af10 | 707 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 708 | struct addr_location al; |
19d4ac3c | 709 | int err; |
5b2bb75a | 710 | |
23346f21 | 711 | if (!machine && perf_guest) { |
6b118e92 DA |
712 | static struct intlist *seen; |
713 | ||
714 | if (!seen) | |
ffe0fb76 | 715 | seen = intlist__new(NULL); |
6b118e92 | 716 | |
ef89325f | 717 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 718 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
719 | sample->pid); |
720 | intlist__add(seen, sample->pid); | |
6b118e92 | 721 | } |
a1645ce1 ZY |
722 | return; |
723 | } | |
724 | ||
0c095715 | 725 | if (!machine) { |
11859e82 | 726 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 727 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
728 | return; |
729 | } | |
730 | ||
8115d60c | 731 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 732 | top->exact_samples++; |
1676b8a0 | 733 | |
33db4568 | 734 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) |
1ed091c4 | 735 | return; |
07800601 | 736 | |
1758af10 | 737 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
738 | symbol_conf.kptr_restrict && |
739 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
740 | ui__warning( | |
741 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
742 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
743 | "Kernel%s samples will not be resolved.\n", | |
c6718350 | 744 | al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? |
5f6f5580 ACM |
745 | " modules" : ""); |
746 | if (use_browser <= 0) | |
747 | sleep(5); | |
1758af10 | 748 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
749 | } |
750 | ||
72b8fa17 | 751 | if (al.sym == NULL) { |
e4a338d0 | 752 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
753 | /* |
754 | * As we do lazy loading of symtabs we only will know if the | |
755 | * specified vmlinux file is invalid when we actually have a | |
756 | * hit in kernel space and then try to load it. So if we get | |
757 | * here and there are _no_ symbols in the DSO backing the | |
758 | * kernel map, bail out. | |
759 | * | |
760 | * We may never get here, for instance, if we use -K/ | |
761 | * --hide-kernel-symbols, even if the user specifies an | |
762 | * invalid --vmlinux ;-) | |
763 | */ | |
1758af10 | 764 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 765 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 766 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 | 767 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
768 | char serr[256]; |
769 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
770 | ui__warning("The %s file can't be used: %s\n%s", | |
771 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
772 | } else { |
773 | ui__warning("A vmlinux file was not found.\n%s", | |
774 | msg); | |
775 | } | |
776 | ||
777 | if (use_browser <= 0) | |
778 | sleep(5); | |
1758af10 | 779 | top->vmlinux_warned = true; |
72b8fa17 | 780 | } |
6cff0e8d KS |
781 | } |
782 | ||
ab81f3fd | 783 | if (al.sym == NULL || !al.sym->ignore) { |
4ea062ed | 784 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 785 | struct hist_entry_iter iter = { |
063bd936 NK |
786 | .evsel = evsel, |
787 | .sample = sample, | |
788 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 789 | }; |
70db7533 | 790 | |
7c50391f NK |
791 | if (symbol_conf.cumulate_callchain) |
792 | iter.ops = &hist_iter_cumulative; | |
793 | else | |
794 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 795 | |
4ea062ed | 796 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 797 | |
063bd936 | 798 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
799 | if (err < 0) |
800 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 801 | |
4ea062ed | 802 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 803 | } |
ab81f3fd | 804 | |
b91fc39f | 805 | addr_location__put(&al); |
07800601 IM |
806 | } |
807 | ||
1758af10 | 808 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 809 | { |
8d50e5b4 | 810 | struct perf_sample sample; |
7b27509f | 811 | struct perf_evsel *evsel; |
1758af10 | 812 | struct perf_session *session = top->session; |
8115d60c | 813 | union perf_event *event; |
743eb868 ACM |
814 | struct machine *machine; |
815 | u8 origin; | |
5538beca | 816 | int ret; |
07800601 | 817 | |
1758af10 | 818 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 819 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
820 | if (ret) { |
821 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 822 | goto next_event; |
5538beca | 823 | } |
04391deb | 824 | |
1758af10 | 825 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
826 | assert(evsel != NULL); |
827 | ||
743eb868 ACM |
828 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
829 | ||
5b2bb75a | 830 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 831 | ++top->samples; |
743eb868 ACM |
832 | |
833 | switch (origin) { | |
834 | case PERF_RECORD_MISC_USER: | |
1758af10 ACM |
835 | ++top->us_samples; |
836 | if (top->hide_user_symbols) | |
8e50d384 | 837 | goto next_event; |
34ba5122 | 838 | machine = &session->machines.host; |
743eb868 ACM |
839 | break; |
840 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
841 | ++top->kernel_samples; |
842 | if (top->hide_kernel_symbols) | |
8e50d384 | 843 | goto next_event; |
34ba5122 | 844 | machine = &session->machines.host; |
743eb868 ACM |
845 | break; |
846 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 847 | ++top->guest_kernel_samples; |
ef89325f AH |
848 | machine = perf_session__find_machine(session, |
849 | sample.pid); | |
743eb868 ACM |
850 | break; |
851 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 852 | ++top->guest_us_samples; |
743eb868 ACM |
853 | /* |
854 | * TODO: we don't process guest user from host side | |
855 | * except simple counting. | |
856 | */ | |
857 | /* Fall thru */ | |
858 | default: | |
8e50d384 | 859 | goto next_event; |
743eb868 ACM |
860 | } |
861 | ||
862 | ||
1758af10 ACM |
863 | if (event->header.type == PERF_RECORD_SAMPLE) { |
864 | perf_event__process_sample(&top->tool, event, evsel, | |
865 | &sample, machine); | |
866 | } else if (event->header.type < PERF_RECORD_MAX) { | |
4ea062ed | 867 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); |
162f0bef | 868 | machine__process_event(machine, event, &sample); |
7b27509f | 869 | } else |
75be989a | 870 | ++session->evlist->stats.nr_unknown_events; |
8e50d384 ZZ |
871 | next_event: |
872 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 873 | } |
07800601 IM |
874 | } |
875 | ||
1758af10 | 876 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 877 | { |
70db7533 ACM |
878 | int i; |
879 | ||
1758af10 ACM |
880 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
881 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
882 | } |
883 | ||
11859e82 | 884 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 885 | { |
56e52e85 | 886 | char msg[512]; |
6a4bb04c | 887 | struct perf_evsel *counter; |
1758af10 | 888 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 889 | struct record_opts *opts = &top->record_opts; |
727ab04e | 890 | |
2376c67a | 891 | perf_evlist__config(evlist, opts); |
7e4ff9e3 | 892 | |
0050f7aa | 893 | evlist__for_each(evlist, counter) { |
72cb7013 | 894 | try_again: |
1758af10 | 895 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 896 | top->evlist->threads) < 0) { |
56e52e85 | 897 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
d6d901c2 | 898 | if (verbose) |
c0a54341 | 899 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
900 | goto try_again; |
901 | } | |
c286c419 | 902 | |
56e52e85 ACM |
903 | perf_evsel__open_strerror(counter, &opts->target, |
904 | errno, msg, sizeof(msg)); | |
905 | ui__error("%s\n", msg); | |
c286c419 | 906 | goto out_err; |
d6d901c2 | 907 | } |
716c69fe | 908 | } |
70db7533 | 909 | |
2376c67a | 910 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 911 | ui__error("Failed to mmap with %d (%s)\n", |
809adea6 | 912 | errno, strerror_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
913 | goto out_err; |
914 | } | |
915 | ||
11859e82 | 916 | return 0; |
c286c419 ACM |
917 | |
918 | out_err: | |
11859e82 | 919 | return -1; |
716c69fe IM |
920 | } |
921 | ||
8f0f684b | 922 | static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) |
19d4ac3c | 923 | { |
8f0f684b | 924 | if (!sort__has_sym) { |
19d4ac3c | 925 | if (symbol_conf.use_callchain) { |
3780f488 | 926 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
927 | return -EINVAL; |
928 | } | |
2376c67a | 929 | } else if (callchain_param.mode != CHAIN_NONE) { |
19d4ac3c | 930 | if (callchain_register_param(&callchain_param) < 0) { |
3780f488 | 931 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
932 | return -EINVAL; |
933 | } | |
934 | } | |
935 | ||
936 | return 0; | |
937 | } | |
938 | ||
1758af10 | 939 | static int __cmd_top(struct perf_top *top) |
716c69fe | 940 | { |
b4006796 | 941 | struct record_opts *opts = &top->record_opts; |
716c69fe | 942 | pthread_t thread; |
19d4ac3c | 943 | int ret; |
f5fc1412 | 944 | |
6a4d98d7 | 945 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 946 | if (top->session == NULL) |
52e02834 | 947 | return -1; |
07800601 | 948 | |
36035f78 AH |
949 | machines__set_symbol_filter(&top->session->machines, symbol_filter); |
950 | ||
0d3942db SB |
951 | if (!objdump_path) { |
952 | ret = perf_session_env__lookup_objdump(&top->session->header.env); | |
953 | if (ret) | |
954 | goto out_delete; | |
955 | } | |
956 | ||
1758af10 | 957 | ret = perf_top__setup_sample_type(top); |
19d4ac3c ACM |
958 | if (ret) |
959 | goto out_delete; | |
960 | ||
a33fbd56 | 961 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
9d9cad76 | 962 | top->evlist->threads, false, opts->proc_map_timeout); |
11859e82 ACM |
963 | ret = perf_top__start_counters(top); |
964 | if (ret) | |
965 | goto out_delete; | |
966 | ||
1758af10 | 967 | top->session->evlist = top->evlist; |
7b56cce2 | 968 | perf_session__set_id_hdr_size(top->session); |
07800601 | 969 | |
2376c67a ACM |
970 | /* |
971 | * When perf is starting the traced process, all the events (apart from | |
972 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
973 | * prematurely enabling them. | |
974 | * | |
975 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
976 | * so leave the check here. | |
977 | */ | |
602ad878 | 978 | if (!target__none(&opts->target)) |
2376c67a ACM |
979 | perf_evlist__enable(top->evlist); |
980 | ||
2f01190a | 981 | /* Wait for a minimal set of events before starting the snapshot */ |
f66a889d | 982 | perf_evlist__poll(top->evlist, 100); |
2f01190a | 983 | |
1758af10 | 984 | perf_top__mmap_read(top); |
2f01190a | 985 | |
11859e82 | 986 | ret = -1; |
c0443df1 | 987 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 988 | display_thread), top)) { |
3780f488 | 989 | ui__error("Could not create display thread.\n"); |
11859e82 | 990 | goto out_delete; |
07800601 IM |
991 | } |
992 | ||
1758af10 | 993 | if (top->realtime_prio) { |
07800601 IM |
994 | struct sched_param param; |
995 | ||
1758af10 | 996 | param.sched_priority = top->realtime_prio; |
07800601 | 997 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 998 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 999 | goto out_join; |
07800601 IM |
1000 | } |
1001 | } | |
1002 | ||
11859e82 | 1003 | while (!done) { |
1758af10 | 1004 | u64 hits = top->samples; |
07800601 | 1005 | |
1758af10 | 1006 | perf_top__mmap_read(top); |
07800601 | 1007 | |
1758af10 | 1008 | if (hits == top->samples) |
f66a889d | 1009 | ret = perf_evlist__poll(top->evlist, 100); |
07800601 IM |
1010 | } |
1011 | ||
11859e82 | 1012 | ret = 0; |
ae256fa2 JO |
1013 | out_join: |
1014 | pthread_join(thread, NULL); | |
19d4ac3c | 1015 | out_delete: |
1758af10 ACM |
1016 | perf_session__delete(top->session); |
1017 | top->session = NULL; | |
19d4ac3c | 1018 | |
11859e82 | 1019 | return ret; |
19d4ac3c ACM |
1020 | } |
1021 | ||
1022 | static int | |
ae779a63 | 1023 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1024 | { |
19d4ac3c | 1025 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1026 | return record_callchain_opt(opt, arg, unset); |
1027 | } | |
19d4ac3c | 1028 | |
ae779a63 JO |
1029 | static int |
1030 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1031 | { | |
1032 | symbol_conf.use_callchain = true; | |
2376c67a | 1033 | return record_parse_callchain_opt(opt, arg, unset); |
07800601 | 1034 | } |
b456bae0 | 1035 | |
eb853e80 JO |
1036 | static int perf_top_config(const char *var, const char *value, void *cb) |
1037 | { | |
eb853e80 | 1038 | if (!strcmp(var, "top.call-graph")) |
5a2e5e85 | 1039 | var = "call-graph.record-mode"; /* fall-through */ |
104ac991 NK |
1040 | if (!strcmp(var, "top.children")) { |
1041 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1042 | return 0; | |
1043 | } | |
eb853e80 JO |
1044 | |
1045 | return perf_default_config(var, value, cb); | |
1046 | } | |
1047 | ||
fa5df943 NK |
1048 | static int |
1049 | parse_percent_limit(const struct option *opt, const char *arg, | |
1050 | int unset __maybe_unused) | |
1051 | { | |
1052 | struct perf_top *top = opt->value; | |
1053 | ||
1054 | top->min_percent = strtof(arg, NULL); | |
1055 | return 0; | |
1056 | } | |
1057 | ||
1d037ca1 | 1058 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1758af10 | 1059 | { |
16ad2ffb | 1060 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1061 | struct perf_top top = { |
1062 | .count_filter = 5, | |
1063 | .delay_secs = 2, | |
2376c67a ACM |
1064 | .record_opts = { |
1065 | .mmap_pages = UINT_MAX, | |
1066 | .user_freq = UINT_MAX, | |
1067 | .user_interval = ULLONG_MAX, | |
1068 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1069 | .target = { |
2376c67a ACM |
1070 | .uses_mmap = true, |
1071 | }, | |
9d9cad76 | 1072 | .proc_map_timeout = 500, |
d1cb9fce | 1073 | }, |
5dbb6e81 | 1074 | .max_stack = PERF_MAX_STACK_DEPTH, |
2376c67a | 1075 | .sym_pcnt_filter = 5, |
1758af10 | 1076 | }; |
b4006796 | 1077 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1078 | struct target *target = &opts->target; |
1758af10 | 1079 | const struct option options[] = { |
8c3e10eb | 1080 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1081 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1082 | parse_events_option), |
2376c67a ACM |
1083 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1084 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1085 | "profile events on existing process id"), |
2376c67a | 1086 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1087 | "profile events on existing thread id"), |
2376c67a | 1088 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1089 | "system-wide collection from all CPUs"), |
2376c67a | 1090 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1091 | "list of cpus to monitor"), |
b32d133a ACM |
1092 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1093 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1094 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1095 | "don't load vmlinux even if found"), | |
8c3e10eb | 1096 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1097 | "hide kernel symbols"), |
994a1f78 JO |
1098 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1099 | "number of mmap data pages", | |
1100 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1101 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1102 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1103 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1104 | "number of seconds to delay between refreshes"), |
1758af10 | 1105 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1106 | "dump the symbol table used for profiling"), |
8c3e10eb | 1107 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1108 | "only display functions with more events than this"), |
bf80669e | 1109 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1110 | "put the counters into a counter group"), |
2376c67a ACM |
1111 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1112 | "child tasks do not inherit counters"), | |
1758af10 | 1113 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1114 | "symbol to annotate"), |
2376c67a ACM |
1115 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1116 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1117 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1118 | "display this many functions"), |
8c3e10eb | 1119 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1120 | "hide user symbols"), |
1758af10 ACM |
1121 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1122 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1123 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1124 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1125 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1126 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1127 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1128 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1129 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1130 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1131 | "Show a column with the number of samples"), | |
bf80669e | 1132 | OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, |
ae779a63 JO |
1133 | NULL, "enables call-graph recording", |
1134 | &callchain_opt), | |
1135 | OPT_CALLBACK(0, "call-graph", &top.record_opts, | |
1136 | "mode[,dump_size]", record_callchain_help, | |
1137 | &parse_callchain_opt), | |
1432ec34 NK |
1138 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1139 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1140 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1141 | "Set the maximum stack depth when parsing the callchain. " | |
1142 | "Default: " __stringify(PERF_MAX_STACK_DEPTH)), | |
b21484f1 GP |
1143 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1144 | "ignore callees of these functions in call graphs", | |
1145 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1146 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1147 | "Show a column with the sum of periods"), | |
1148 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1149 | "only consider symbols in these dsos"), | |
1150 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1151 | "only consider symbols in these comms"), | |
1152 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1153 | "only consider these symbols"), | |
64c6f0c7 ACM |
1154 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1155 | "Interleave source code with assembly code (default)"), | |
1156 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1157 | "Display raw encoding of assembly instructions (default)"), | |
763122ad AK |
1158 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1159 | "Enable kernel symbol demangling"), | |
0d3942db SB |
1160 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1161 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1162 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1163 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1164 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1165 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1166 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1167 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1168 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1169 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1170 | "width[,width...]", | |
1171 | "don't try to adjust column width, use these fixed values"), | |
9d9cad76 KL |
1172 | OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, |
1173 | "per thread proc mmap processing timeout in ms"), | |
b456bae0 | 1174 | OPT_END() |
1758af10 | 1175 | }; |
be772842 ACM |
1176 | const char * const top_usage[] = { |
1177 | "perf top [<options>]", | |
1178 | NULL | |
1179 | }; | |
a635fc51 ACM |
1180 | int status = hists__init(); |
1181 | ||
1182 | if (status < 0) | |
1183 | return status; | |
b456bae0 | 1184 | |
334fe7a3 | 1185 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1186 | if (top.evlist == NULL) |
361c99a6 ACM |
1187 | return -ENOMEM; |
1188 | ||
eb853e80 JO |
1189 | perf_config(perf_top_config, &top); |
1190 | ||
b456bae0 IM |
1191 | argc = parse_options(argc, argv, options, top_usage, 0); |
1192 | if (argc) | |
1193 | usage_with_options(top_usage, options); | |
1194 | ||
512ae1bd | 1195 | sort__mode = SORT_MODE__TOP; |
6fe8c26d NK |
1196 | /* display thread wants entries to be collapsed in a different tree */ |
1197 | sort__need_collapse = 1; | |
ab81f3fd | 1198 | |
d37a92dc | 1199 | if (setup_sorting() < 0) { |
6fe8c26d NK |
1200 | if (sort_order) |
1201 | parse_options_usage(top_usage, options, "s", 1); | |
1202 | if (field_order) | |
1203 | parse_options_usage(sort_order ? NULL : top_usage, | |
1204 | options, "fields", 0); | |
d37a92dc NK |
1205 | goto out_delete_evlist; |
1206 | } | |
ab81f3fd | 1207 | |
1758af10 | 1208 | if (top.use_stdio) |
c0443df1 | 1209 | use_browser = 0; |
1758af10 | 1210 | else if (top.use_tui) |
c0443df1 ACM |
1211 | use_browser = 1; |
1212 | ||
1213 | setup_browser(false); | |
1214 | ||
602ad878 | 1215 | status = target__validate(target); |
16ad2ffb | 1216 | if (status) { |
602ad878 | 1217 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1218 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1219 | } |
1220 | ||
602ad878 | 1221 | status = target__parse_uid(target); |
16ad2ffb NK |
1222 | if (status) { |
1223 | int saved_errno = errno; | |
4bd0f2d2 | 1224 | |
602ad878 | 1225 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1226 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1227 | |
1228 | status = -saved_errno; | |
0d37aa34 | 1229 | goto out_delete_evlist; |
16ad2ffb | 1230 | } |
0d37aa34 | 1231 | |
602ad878 | 1232 | if (target__none(target)) |
2376c67a | 1233 | target->system_wide = true; |
10b47d54 | 1234 | |
2376c67a | 1235 | if (perf_evlist__create_maps(top.evlist, target) < 0) |
7e2ed097 ACM |
1236 | usage_with_options(top_usage, options); |
1237 | ||
8c3e10eb ACM |
1238 | if (!top.evlist->nr_entries && |
1239 | perf_evlist__add_default(top.evlist) < 0) { | |
3780f488 | 1240 | ui__error("Not enough memory for event selector list\n"); |
03ad9747 | 1241 | goto out_delete_evlist; |
69aad6f1 | 1242 | } |
5a8e5a30 | 1243 | |
d04b35f8 ACM |
1244 | symbol_conf.nr_events = top.evlist->nr_entries; |
1245 | ||
8c3e10eb ACM |
1246 | if (top.delay_secs < 1) |
1247 | top.delay_secs = 1; | |
2f335a02 | 1248 | |
b4006796 | 1249 | if (record_opts__config(opts)) { |
2376c67a | 1250 | status = -EINVAL; |
03ad9747 | 1251 | goto out_delete_evlist; |
69aad6f1 ACM |
1252 | } |
1253 | ||
0c21f736 | 1254 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1255 | |
1432ec34 NK |
1256 | if (!symbol_conf.use_callchain) { |
1257 | symbol_conf.cumulate_callchain = false; | |
1258 | perf_hpp__cancel_cumulate(); | |
1259 | } | |
1260 | ||
ab81f3fd | 1261 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1262 | |
1263 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
0a7e6d1b | 1264 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1265 | return -1; |
1266 | ||
08e71542 | 1267 | sort__setup_elide(stdout); |
ab81f3fd | 1268 | |
1758af10 | 1269 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1270 | if (top.print_entries == 0) { |
1758af10 ACM |
1271 | struct sigaction act = { |
1272 | .sa_sigaction = perf_top__sig_winch, | |
1273 | .sa_flags = SA_SIGINFO, | |
1274 | }; | |
1275 | perf_top__update_print_entries(&top); | |
1276 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1277 | } |
1278 | ||
1758af10 | 1279 | status = __cmd_top(&top); |
806fb630 | 1280 | |
0d37aa34 | 1281 | out_delete_evlist: |
8c3e10eb | 1282 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1283 | |
1284 | return status; | |
b456bae0 | 1285 | } |