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" |
b3165f41 ACM |
29 | #include "util/session.h" |
30 | #include "util/symbol.h" | |
439d473b | 31 | #include "util/thread.h" |
fd78260b | 32 | #include "util/thread_map.h" |
8c3e10eb | 33 | #include "util/top.h" |
148be2c1 | 34 | #include "util/util.h" |
43cbcd8a | 35 | #include <linux/rbtree.h> |
b456bae0 IM |
36 | #include "util/parse-options.h" |
37 | #include "util/parse-events.h" | |
a12b51c4 | 38 | #include "util/cpumap.h" |
69aad6f1 | 39 | #include "util/xyarray.h" |
ab81f3fd | 40 | #include "util/sort.h" |
07800601 | 41 | |
8f28827a FW |
42 | #include "util/debug.h" |
43 | ||
07800601 IM |
44 | #include <assert.h> |
45 | #include <fcntl.h> | |
0e9b20b8 | 46 | |
07800601 | 47 | #include <stdio.h> |
923c42c1 MG |
48 | #include <termios.h> |
49 | #include <unistd.h> | |
9486aa38 | 50 | #include <inttypes.h> |
0e9b20b8 | 51 | |
07800601 | 52 | #include <errno.h> |
07800601 IM |
53 | #include <time.h> |
54 | #include <sched.h> | |
07800601 IM |
55 | |
56 | #include <sys/syscall.h> | |
57 | #include <sys/ioctl.h> | |
58 | #include <sys/poll.h> | |
59 | #include <sys/prctl.h> | |
60 | #include <sys/wait.h> | |
61 | #include <sys/uio.h> | |
62 | #include <sys/mman.h> | |
63 | ||
64 | #include <linux/unistd.h> | |
65 | #include <linux/types.h> | |
66 | ||
8c3e10eb ACM |
67 | static struct perf_top top = { |
68 | .count_filter = 5, | |
69 | .delay_secs = 2, | |
8c3e10eb ACM |
70 | .target_pid = -1, |
71 | .target_tid = -1, | |
8c3e10eb ACM |
72 | .freq = 1000, /* 1 KHz */ |
73 | }; | |
361c99a6 | 74 | |
c0555642 | 75 | static bool system_wide = false; |
07800601 | 76 | |
c0443df1 ACM |
77 | static bool use_tui, use_stdio; |
78 | ||
19d4ac3c ACM |
79 | static bool sort_has_symbols; |
80 | ||
81 | static bool dont_use_callchains; | |
82 | static char callchain_default_opt[] = "fractal,0.5,callee"; | |
83 | ||
84 | ||
7e4ff9e3 | 85 | static int default_interval = 0; |
07800601 | 86 | |
5f6f5580 | 87 | static bool kptr_restrict_warned; |
e4a338d0 | 88 | static bool vmlinux_warned; |
c0555642 | 89 | static bool inherit = false; |
1967936d | 90 | static int realtime_prio = 0; |
c0555642 | 91 | static bool group = false; |
7b27509f | 92 | static bool sample_id_all_avail = true; |
70db7533 | 93 | static unsigned int mmap_pages = 128; |
07800601 | 94 | |
c0555642 | 95 | static bool dump_symtab = false; |
07800601 | 96 | |
13cc5079 | 97 | static struct winsize winsize; |
8ffcda17 | 98 | |
edb7c60e | 99 | static const char *sym_filter = NULL; |
42e59d7d | 100 | static int sym_pcnt_filter = 5; |
07800601 | 101 | |
923c42c1 MG |
102 | /* |
103 | * Source functions | |
104 | */ | |
105 | ||
895f0edc | 106 | void get_term_dimensions(struct winsize *ws) |
3b6ed988 | 107 | { |
13cc5079 ACM |
108 | char *s = getenv("LINES"); |
109 | ||
110 | if (s != NULL) { | |
111 | ws->ws_row = atoi(s); | |
112 | s = getenv("COLUMNS"); | |
113 | if (s != NULL) { | |
114 | ws->ws_col = atoi(s); | |
115 | if (ws->ws_row && ws->ws_col) | |
116 | return; | |
117 | } | |
3b6ed988 | 118 | } |
13cc5079 ACM |
119 | #ifdef TIOCGWINSZ |
120 | if (ioctl(1, TIOCGWINSZ, ws) == 0 && | |
121 | ws->ws_row && ws->ws_col) | |
122 | return; | |
3b6ed988 | 123 | #endif |
13cc5079 ACM |
124 | ws->ws_row = 25; |
125 | ws->ws_col = 80; | |
3b6ed988 ACM |
126 | } |
127 | ||
13cc5079 | 128 | static void update_print_entries(struct winsize *ws) |
3b6ed988 | 129 | { |
8c3e10eb | 130 | top.print_entries = ws->ws_row; |
13cc5079 | 131 | |
8c3e10eb ACM |
132 | if (top.print_entries > 9) |
133 | top.print_entries -= 9; | |
3b6ed988 ACM |
134 | } |
135 | ||
136 | static void sig_winch_handler(int sig __used) | |
137 | { | |
13cc5079 ACM |
138 | get_term_dimensions(&winsize); |
139 | update_print_entries(&winsize); | |
3b6ed988 ACM |
140 | } |
141 | ||
ab81f3fd | 142 | static int parse_source(struct hist_entry *he) |
923c42c1 MG |
143 | { |
144 | struct symbol *sym; | |
ce6f4fab | 145 | struct annotation *notes; |
439d473b | 146 | struct map *map; |
36532461 | 147 | int err = -1; |
923c42c1 | 148 | |
ab81f3fd | 149 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
150 | return -1; |
151 | ||
ab81f3fd ACM |
152 | sym = he->ms.sym; |
153 | map = he->ms.map; | |
b0a9ab62 ACM |
154 | |
155 | /* | |
156 | * We can't annotate with just /proc/kallsyms | |
157 | */ | |
878b439d | 158 | if (map->dso->symtab_type == SYMTAB__KALLSYMS) { |
ce6f4fab ACM |
159 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
160 | "path\n", sym->name); | |
161 | sleep(1); | |
b0a9ab62 | 162 | return -1; |
b269876c ACM |
163 | } |
164 | ||
ce6f4fab ACM |
165 | notes = symbol__annotation(sym); |
166 | if (notes->src != NULL) { | |
167 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
168 | goto out_assign; |
169 | } | |
923c42c1 | 170 | |
ce6f4fab | 171 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 172 | |
d04b35f8 | 173 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 174 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
175 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
176 | sym->name); | |
ce6f4fab | 177 | sleep(1); |
c97cf422 | 178 | return err; |
923c42c1 | 179 | } |
36532461 | 180 | |
ab81f3fd | 181 | err = symbol__annotate(sym, map, 0); |
36532461 | 182 | if (err == 0) { |
923c42c1 | 183 | out_assign: |
ab81f3fd | 184 | top.sym_filter_entry = he; |
36532461 | 185 | } |
c97cf422 | 186 | |
ce6f4fab | 187 | pthread_mutex_unlock(¬es->lock); |
36532461 | 188 | return err; |
923c42c1 MG |
189 | } |
190 | ||
ab81f3fd | 191 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 192 | { |
ab81f3fd | 193 | struct symbol *sym = he->ms.sym; |
36532461 | 194 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
195 | } |
196 | ||
ab81f3fd | 197 | static void record_precise_ip(struct hist_entry *he, int counter, u64 ip) |
923c42c1 | 198 | { |
ce6f4fab ACM |
199 | struct annotation *notes; |
200 | struct symbol *sym; | |
201 | ||
ab81f3fd | 202 | if (he == NULL || he->ms.sym == NULL || |
f9e3d4b1 ACM |
203 | ((top.sym_filter_entry == NULL || |
204 | top.sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) | |
923c42c1 MG |
205 | return; |
206 | ||
ab81f3fd | 207 | sym = he->ms.sym; |
ce6f4fab ACM |
208 | notes = symbol__annotation(sym); |
209 | ||
210 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
211 | return; |
212 | ||
d04b35f8 | 213 | if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { |
ab81f3fd ACM |
214 | pthread_mutex_unlock(¬es->lock); |
215 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
216 | sym->name); | |
217 | sleep(1); | |
218 | return; | |
219 | } | |
220 | ||
221 | ip = he->ms.map->map_ip(he->ms.map, ip); | |
222 | symbol__inc_addr_samples(sym, he->ms.map, counter, ip); | |
c7ad21af | 223 | |
ce6f4fab | 224 | pthread_mutex_unlock(¬es->lock); |
923c42c1 MG |
225 | } |
226 | ||
ab81f3fd | 227 | static void show_details(struct hist_entry *he) |
923c42c1 | 228 | { |
ce6f4fab | 229 | struct annotation *notes; |
923c42c1 | 230 | struct symbol *symbol; |
36532461 | 231 | int more; |
923c42c1 | 232 | |
ab81f3fd | 233 | if (!he) |
923c42c1 MG |
234 | return; |
235 | ||
ab81f3fd | 236 | symbol = he->ms.sym; |
ce6f4fab ACM |
237 | notes = symbol__annotation(symbol); |
238 | ||
239 | pthread_mutex_lock(¬es->lock); | |
240 | ||
241 | if (notes->src == NULL) | |
242 | goto out_unlock; | |
923c42c1 | 243 | |
8c3e10eb | 244 | printf("Showing %s for %s\n", event_name(top.sym_evsel), symbol->name); |
923c42c1 MG |
245 | printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter); |
246 | ||
ab81f3fd | 247 | more = symbol__annotate_printf(symbol, he->ms.map, top.sym_evsel->idx, |
d5e3d747 | 248 | 0, sym_pcnt_filter, top.print_entries, 4); |
36532461 ACM |
249 | if (top.zero) |
250 | symbol__annotate_zero_histogram(symbol, top.sym_evsel->idx); | |
251 | else | |
ce6f4fab | 252 | symbol__annotate_decay_histogram(symbol, top.sym_evsel->idx); |
36532461 | 253 | if (more != 0) |
923c42c1 | 254 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
255 | out_unlock: |
256 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 257 | } |
07800601 | 258 | |
07800601 IM |
259 | static const char CONSOLE_CLEAR[] = "\e[H\e[2J"; |
260 | ||
ab81f3fd ACM |
261 | static struct hist_entry * |
262 | perf_session__add_hist_entry(struct perf_session *session, | |
263 | struct addr_location *al, | |
264 | struct perf_sample *sample, | |
265 | struct perf_evsel *evsel) | |
de04687f | 266 | { |
ab81f3fd ACM |
267 | struct hist_entry *he; |
268 | ||
269 | he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); | |
270 | if (he == NULL) | |
271 | return NULL; | |
272 | ||
273 | session->hists.stats.total_period += sample->period; | |
274 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); | |
275 | return he; | |
de04687f | 276 | } |
07800601 | 277 | |
dcc101d1 | 278 | static void print_sym_table(void) |
07800601 | 279 | { |
8c3e10eb ACM |
280 | char bf[160]; |
281 | int printed = 0; | |
13cc5079 | 282 | const int win_width = winsize.ws_col - 1; |
d94b9430 | 283 | |
0f5486b5 | 284 | puts(CONSOLE_CLEAR); |
07800601 | 285 | |
8c3e10eb ACM |
286 | perf_top__header_snprintf(&top, bf, sizeof(bf)); |
287 | printf("%s\n", bf); | |
07800601 | 288 | |
8c3e10eb | 289 | perf_top__reset_sample_counters(&top); |
07800601 | 290 | |
1a105f74 | 291 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 292 | |
7b27509f ACM |
293 | if (top.sym_evsel->hists.stats.nr_lost_warned != |
294 | top.sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { | |
295 | top.sym_evsel->hists.stats.nr_lost_warned = | |
296 | top.sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; | |
297 | color_fprintf(stdout, PERF_COLOR_RED, | |
298 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
299 | top.sym_evsel->hists.stats.nr_lost_warned); | |
ab81f3fd | 300 | ++printed; |
93fc64f1 ACM |
301 | } |
302 | ||
c97cf422 ACM |
303 | if (top.sym_filter_entry) { |
304 | show_details(top.sym_filter_entry); | |
923c42c1 MG |
305 | return; |
306 | } | |
307 | ||
ab81f3fd ACM |
308 | hists__collapse_resort_threaded(&top.sym_evsel->hists); |
309 | hists__output_resort_threaded(&top.sym_evsel->hists); | |
b079d4e9 ACM |
310 | hists__decay_entries_threaded(&top.sym_evsel->hists, |
311 | top.hide_user_symbols, | |
312 | top.hide_kernel_symbols); | |
ab81f3fd | 313 | hists__output_recalc_col_len(&top.sym_evsel->hists, winsize.ws_row - 3); |
7cc017ed | 314 | putchar('\n'); |
ab81f3fd ACM |
315 | hists__fprintf(&top.sym_evsel->hists, NULL, false, false, |
316 | winsize.ws_row - 4 - printed, win_width, stdout); | |
07800601 IM |
317 | } |
318 | ||
923c42c1 MG |
319 | static void prompt_integer(int *target, const char *msg) |
320 | { | |
321 | char *buf = malloc(0), *p; | |
322 | size_t dummy = 0; | |
323 | int tmp; | |
324 | ||
325 | fprintf(stdout, "\n%s: ", msg); | |
326 | if (getline(&buf, &dummy, stdin) < 0) | |
327 | return; | |
328 | ||
329 | p = strchr(buf, '\n'); | |
330 | if (p) | |
331 | *p = 0; | |
332 | ||
333 | p = buf; | |
334 | while(*p) { | |
335 | if (!isdigit(*p)) | |
336 | goto out_free; | |
337 | p++; | |
338 | } | |
339 | tmp = strtoul(buf, NULL, 10); | |
340 | *target = tmp; | |
341 | out_free: | |
342 | free(buf); | |
343 | } | |
344 | ||
345 | static void prompt_percent(int *target, const char *msg) | |
346 | { | |
347 | int tmp = 0; | |
348 | ||
349 | prompt_integer(&tmp, msg); | |
350 | if (tmp >= 0 && tmp <= 100) | |
351 | *target = tmp; | |
352 | } | |
353 | ||
ab81f3fd | 354 | static void prompt_symbol(struct hist_entry **target, const char *msg) |
923c42c1 MG |
355 | { |
356 | char *buf = malloc(0), *p; | |
ab81f3fd ACM |
357 | struct hist_entry *syme = *target, *n, *found = NULL; |
358 | struct rb_node *next; | |
923c42c1 MG |
359 | size_t dummy = 0; |
360 | ||
361 | /* zero counters of active symbol */ | |
362 | if (syme) { | |
923c42c1 MG |
363 | __zero_source_counters(syme); |
364 | *target = NULL; | |
923c42c1 MG |
365 | } |
366 | ||
367 | fprintf(stdout, "\n%s: ", msg); | |
368 | if (getline(&buf, &dummy, stdin) < 0) | |
369 | goto out_free; | |
370 | ||
371 | p = strchr(buf, '\n'); | |
372 | if (p) | |
373 | *p = 0; | |
374 | ||
ab81f3fd ACM |
375 | next = rb_first(&top.sym_evsel->hists.entries); |
376 | while (next) { | |
377 | n = rb_entry(next, struct hist_entry, rb_node); | |
378 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
379 | found = n; | |
923c42c1 MG |
380 | break; |
381 | } | |
ab81f3fd | 382 | next = rb_next(&n->rb_node); |
923c42c1 MG |
383 | } |
384 | ||
385 | if (!found) { | |
66aeb6d5 | 386 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 MG |
387 | sleep(1); |
388 | return; | |
389 | } else | |
390 | parse_source(found); | |
391 | ||
392 | out_free: | |
393 | free(buf); | |
394 | } | |
395 | ||
091bd2e9 | 396 | static void print_mapped_keys(void) |
923c42c1 | 397 | { |
091bd2e9 MG |
398 | char *name = NULL; |
399 | ||
c97cf422 | 400 | if (top.sym_filter_entry) { |
ab81f3fd | 401 | struct symbol *sym = top.sym_filter_entry->ms.sym; |
091bd2e9 MG |
402 | name = sym->name; |
403 | } | |
404 | ||
405 | fprintf(stdout, "\nMapped keys:\n"); | |
8c3e10eb ACM |
406 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top.delay_secs); |
407 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top.print_entries); | |
091bd2e9 | 408 | |
8c3e10eb ACM |
409 | if (top.evlist->nr_entries > 1) |
410 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top.sym_evsel)); | |
091bd2e9 | 411 | |
8c3e10eb | 412 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top.count_filter); |
091bd2e9 | 413 | |
6cff0e8d KS |
414 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); |
415 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); | |
416 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 417 | |
8ffcda17 | 418 | fprintf(stdout, |
1a72cfa6 | 419 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
8c3e10eb | 420 | top.hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
421 | fprintf(stdout, |
422 | "\t[U] hide user symbols. \t(%s)\n", | |
8c3e10eb ACM |
423 | top.hide_user_symbols ? "yes" : "no"); |
424 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top.zero ? 1 : 0); | |
091bd2e9 MG |
425 | fprintf(stdout, "\t[qQ] quit.\n"); |
426 | } | |
427 | ||
428 | static int key_mapped(int c) | |
429 | { | |
430 | switch (c) { | |
431 | case 'd': | |
432 | case 'e': | |
433 | case 'f': | |
434 | case 'z': | |
435 | case 'q': | |
436 | case 'Q': | |
8ffcda17 ACM |
437 | case 'K': |
438 | case 'U': | |
6cff0e8d KS |
439 | case 'F': |
440 | case 's': | |
441 | case 'S': | |
091bd2e9 MG |
442 | return 1; |
443 | case 'E': | |
b2b7e9eb | 444 | return top.evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
445 | default: |
446 | break; | |
091bd2e9 MG |
447 | } |
448 | ||
449 | return 0; | |
923c42c1 MG |
450 | } |
451 | ||
dcc101d1 | 452 | static void handle_keypress(int c) |
923c42c1 | 453 | { |
091bd2e9 MG |
454 | if (!key_mapped(c)) { |
455 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; | |
456 | struct termios tc, save; | |
457 | ||
458 | print_mapped_keys(); | |
459 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); | |
460 | fflush(stdout); | |
461 | ||
462 | tcgetattr(0, &save); | |
463 | tc = save; | |
464 | tc.c_lflag &= ~(ICANON | ECHO); | |
465 | tc.c_cc[VMIN] = 0; | |
466 | tc.c_cc[VTIME] = 0; | |
467 | tcsetattr(0, TCSANOW, &tc); | |
468 | ||
469 | poll(&stdin_poll, 1, -1); | |
470 | c = getc(stdin); | |
471 | ||
472 | tcsetattr(0, TCSAFLUSH, &save); | |
473 | if (!key_mapped(c)) | |
474 | return; | |
475 | } | |
476 | ||
923c42c1 MG |
477 | switch (c) { |
478 | case 'd': | |
8c3e10eb ACM |
479 | prompt_integer(&top.delay_secs, "Enter display delay"); |
480 | if (top.delay_secs < 1) | |
481 | top.delay_secs = 1; | |
923c42c1 MG |
482 | break; |
483 | case 'e': | |
8c3e10eb ACM |
484 | prompt_integer(&top.print_entries, "Enter display entries (lines)"); |
485 | if (top.print_entries == 0) { | |
13cc5079 | 486 | sig_winch_handler(SIGWINCH); |
3b6ed988 ACM |
487 | signal(SIGWINCH, sig_winch_handler); |
488 | } else | |
489 | signal(SIGWINCH, SIG_DFL); | |
923c42c1 MG |
490 | break; |
491 | case 'E': | |
8c3e10eb | 492 | if (top.evlist->nr_entries > 1) { |
ce2d17ca AN |
493 | /* Select 0 as the default event: */ |
494 | int counter = 0; | |
495 | ||
923c42c1 | 496 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 497 | |
8c3e10eb ACM |
498 | list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) |
499 | fprintf(stderr, "\n\t%d %s", top.sym_evsel->idx, event_name(top.sym_evsel)); | |
923c42c1 | 500 | |
ec52d976 | 501 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 502 | |
ec52d976 | 503 | if (counter >= top.evlist->nr_entries) { |
8c3e10eb | 504 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
8c3e10eb | 505 | fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top.sym_evsel)); |
923c42c1 | 506 | sleep(1); |
69aad6f1 | 507 | break; |
923c42c1 | 508 | } |
8c3e10eb | 509 | list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) |
ec52d976 | 510 | if (top.sym_evsel->idx == counter) |
69aad6f1 | 511 | break; |
ec52d976 ACM |
512 | } else |
513 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); | |
923c42c1 MG |
514 | break; |
515 | case 'f': | |
8c3e10eb | 516 | prompt_integer(&top.count_filter, "Enter display event count filter"); |
923c42c1 MG |
517 | break; |
518 | case 'F': | |
519 | prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)"); | |
520 | break; | |
8ffcda17 | 521 | case 'K': |
8c3e10eb | 522 | top.hide_kernel_symbols = !top.hide_kernel_symbols; |
8ffcda17 | 523 | break; |
923c42c1 MG |
524 | case 'q': |
525 | case 'Q': | |
526 | printf("exiting.\n"); | |
c338aee8 | 527 | if (dump_symtab) |
dcc101d1 | 528 | perf_session__fprintf_dsos(top.session, stderr); |
923c42c1 MG |
529 | exit(0); |
530 | case 's': | |
c97cf422 | 531 | prompt_symbol(&top.sym_filter_entry, "Enter details symbol"); |
923c42c1 MG |
532 | break; |
533 | case 'S': | |
c97cf422 | 534 | if (!top.sym_filter_entry) |
923c42c1 MG |
535 | break; |
536 | else { | |
ab81f3fd | 537 | struct hist_entry *syme = top.sym_filter_entry; |
923c42c1 | 538 | |
c97cf422 | 539 | top.sym_filter_entry = NULL; |
923c42c1 | 540 | __zero_source_counters(syme); |
923c42c1 MG |
541 | } |
542 | break; | |
8ffcda17 | 543 | case 'U': |
8c3e10eb | 544 | top.hide_user_symbols = !top.hide_user_symbols; |
8ffcda17 | 545 | break; |
923c42c1 | 546 | case 'z': |
8c3e10eb | 547 | top.zero = !top.zero; |
923c42c1 | 548 | break; |
83a0944f IM |
549 | default: |
550 | break; | |
923c42c1 MG |
551 | } |
552 | } | |
553 | ||
ab81f3fd ACM |
554 | static void perf_top__sort_new_samples(void *arg) |
555 | { | |
556 | struct perf_top *t = arg; | |
557 | perf_top__reset_sample_counters(t); | |
558 | ||
559 | if (t->evlist->selected != NULL) | |
560 | t->sym_evsel = t->evlist->selected; | |
561 | ||
562 | hists__collapse_resort_threaded(&t->sym_evsel->hists); | |
563 | hists__output_resort_threaded(&t->sym_evsel->hists); | |
b079d4e9 ACM |
564 | hists__decay_entries_threaded(&t->sym_evsel->hists, |
565 | top.hide_user_symbols, | |
566 | top.hide_kernel_symbols); | |
ab81f3fd ACM |
567 | } |
568 | ||
c0443df1 ACM |
569 | static void *display_thread_tui(void *arg __used) |
570 | { | |
ab81f3fd ACM |
571 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
572 | ||
573 | perf_top__sort_new_samples(&top); | |
574 | perf_evlist__tui_browse_hists(top.evlist, help, | |
575 | perf_top__sort_new_samples, | |
576 | &top, top.delay_secs); | |
577 | ||
c0443df1 ACM |
578 | exit_browser(0); |
579 | exit(0); | |
580 | return NULL; | |
581 | } | |
582 | ||
f37a291c | 583 | static void *display_thread(void *arg __used) |
07800601 | 584 | { |
0f5486b5 | 585 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 MG |
586 | struct termios tc, save; |
587 | int delay_msecs, c; | |
588 | ||
589 | tcgetattr(0, &save); | |
590 | tc = save; | |
591 | tc.c_lflag &= ~(ICANON | ECHO); | |
592 | tc.c_cc[VMIN] = 0; | |
593 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 594 | |
3af6e338 | 595 | pthread__unblock_sigwinch(); |
923c42c1 | 596 | repeat: |
8c3e10eb | 597 | delay_msecs = top.delay_secs * 1000; |
923c42c1 MG |
598 | tcsetattr(0, TCSANOW, &tc); |
599 | /* trash return*/ | |
600 | getc(stdin); | |
07800601 | 601 | |
3af6e338 | 602 | while (1) { |
dcc101d1 | 603 | print_sym_table(); |
3af6e338 ACM |
604 | /* |
605 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
606 | * refresh screen in both cases. | |
607 | */ | |
608 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
609 | case 0: | |
610 | continue; | |
611 | case -1: | |
612 | if (errno == EINTR) | |
613 | continue; | |
614 | /* Fall trhu */ | |
615 | default: | |
616 | goto process_hotkey; | |
617 | } | |
618 | } | |
619 | process_hotkey: | |
923c42c1 MG |
620 | c = getc(stdin); |
621 | tcsetattr(0, TCSAFLUSH, &save); | |
622 | ||
dcc101d1 | 623 | handle_keypress(c); |
923c42c1 | 624 | goto repeat; |
07800601 IM |
625 | |
626 | return NULL; | |
627 | } | |
628 | ||
2ab52083 | 629 | /* Tag samples to be skipped. */ |
f37a291c | 630 | static const char *skip_symbols[] = { |
2ab52083 | 631 | "default_idle", |
b0e8572f | 632 | "native_safe_halt", |
2ab52083 AB |
633 | "cpu_idle", |
634 | "enter_idle", | |
635 | "exit_idle", | |
636 | "mwait_idle", | |
59b90056 | 637 | "mwait_idle_with_hints", |
8357275b | 638 | "poll_idle", |
3a3393ef AB |
639 | "ppc64_runlatch_off", |
640 | "pseries_dedicated_idle_sleep", | |
2ab52083 AB |
641 | NULL |
642 | }; | |
643 | ||
ab81f3fd | 644 | static int symbol_filter(struct map *map __used, struct symbol *sym) |
07800601 | 645 | { |
de04687f | 646 | const char *name = sym->name; |
2ab52083 | 647 | int i; |
de04687f | 648 | |
3a3393ef AB |
649 | /* |
650 | * ppc64 uses function descriptors and appends a '.' to the | |
651 | * start of every instruction address. Remove it. | |
652 | */ | |
653 | if (name[0] == '.') | |
654 | name++; | |
655 | ||
de04687f ACM |
656 | if (!strcmp(name, "_text") || |
657 | !strcmp(name, "_etext") || | |
658 | !strcmp(name, "_sinittext") || | |
659 | !strncmp("init_module", name, 11) || | |
660 | !strncmp("cleanup_module", name, 14) || | |
661 | strstr(name, "_text_start") || | |
662 | strstr(name, "_text_end")) | |
07800601 | 663 | return 1; |
07800601 | 664 | |
2ab52083 AB |
665 | for (i = 0; skip_symbols[i]; i++) { |
666 | if (!strcmp(skip_symbols[i], name)) { | |
171b3be9 | 667 | sym->ignore = true; |
2ab52083 AB |
668 | break; |
669 | } | |
670 | } | |
07800601 | 671 | |
07800601 IM |
672 | return 0; |
673 | } | |
674 | ||
8115d60c | 675 | static void perf_event__process_sample(const union perf_event *event, |
7b27509f | 676 | struct perf_evsel *evsel, |
8115d60c ACM |
677 | struct perf_sample *sample, |
678 | struct perf_session *session) | |
07800601 | 679 | { |
19d4ac3c | 680 | struct symbol *parent = NULL; |
8115d60c | 681 | u64 ip = event->ip.ip; |
1ed091c4 | 682 | struct addr_location al; |
23346f21 | 683 | struct machine *machine; |
19d4ac3c | 684 | int err; |
8115d60c | 685 | u8 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
5b2bb75a | 686 | |
8c3e10eb | 687 | ++top.samples; |
24bfef0f | 688 | |
8ffcda17 | 689 | switch (origin) { |
1ed091c4 | 690 | case PERF_RECORD_MISC_USER: |
8c3e10eb ACM |
691 | ++top.us_samples; |
692 | if (top.hide_user_symbols) | |
8ffcda17 | 693 | return; |
23346f21 | 694 | machine = perf_session__find_host_machine(session); |
1ed091c4 | 695 | break; |
5b2bb75a | 696 | case PERF_RECORD_MISC_KERNEL: |
8c3e10eb ACM |
697 | ++top.kernel_samples; |
698 | if (top.hide_kernel_symbols) | |
8ffcda17 | 699 | return; |
23346f21 | 700 | machine = perf_session__find_host_machine(session); |
a1645ce1 ZY |
701 | break; |
702 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
8c3e10eb | 703 | ++top.guest_kernel_samples; |
8115d60c | 704 | machine = perf_session__find_machine(session, event->ip.pid); |
5b2bb75a | 705 | break; |
a1645ce1 | 706 | case PERF_RECORD_MISC_GUEST_USER: |
8c3e10eb | 707 | ++top.guest_us_samples; |
a1645ce1 ZY |
708 | /* |
709 | * TODO: we don't process guest user from host side | |
710 | * except simple counting. | |
711 | */ | |
712 | return; | |
5b2bb75a ACM |
713 | default: |
714 | return; | |
715 | } | |
716 | ||
23346f21 | 717 | if (!machine && perf_guest) { |
a1645ce1 | 718 | pr_err("Can't find guest [%d]'s kernel information\n", |
8115d60c | 719 | event->ip.pid); |
a1645ce1 ZY |
720 | return; |
721 | } | |
722 | ||
8115d60c | 723 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
8c3e10eb | 724 | top.exact_samples++; |
1676b8a0 | 725 | |
8115d60c ACM |
726 | if (perf_event__preprocess_sample(event, session, &al, sample, |
727 | symbol_filter) < 0 || | |
72b8fa17 | 728 | al.filtered) |
1ed091c4 | 729 | return; |
07800601 | 730 | |
5f6f5580 ACM |
731 | if (!kptr_restrict_warned && |
732 | symbol_conf.kptr_restrict && | |
733 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
734 | ui__warning( | |
735 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
736 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
737 | "Kernel%s samples will not be resolved.\n", | |
738 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
739 | " modules" : ""); | |
740 | if (use_browser <= 0) | |
741 | sleep(5); | |
742 | kptr_restrict_warned = true; | |
743 | } | |
744 | ||
72b8fa17 | 745 | if (al.sym == NULL) { |
e4a338d0 | 746 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
747 | /* |
748 | * As we do lazy loading of symtabs we only will know if the | |
749 | * specified vmlinux file is invalid when we actually have a | |
750 | * hit in kernel space and then try to load it. So if we get | |
751 | * here and there are _no_ symbols in the DSO backing the | |
752 | * kernel map, bail out. | |
753 | * | |
754 | * We may never get here, for instance, if we use -K/ | |
755 | * --hide-kernel-symbols, even if the user specifies an | |
756 | * invalid --vmlinux ;-) | |
757 | */ | |
e4a338d0 ACM |
758 | if (!kptr_restrict_warned && !vmlinux_warned && |
759 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && | |
72b8fa17 | 760 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
761 | if (symbol_conf.vmlinux_name) { |
762 | ui__warning("The %s file can't be used.\n%s", | |
763 | symbol_conf.vmlinux_name, msg); | |
764 | } else { | |
765 | ui__warning("A vmlinux file was not found.\n%s", | |
766 | msg); | |
767 | } | |
768 | ||
769 | if (use_browser <= 0) | |
770 | sleep(5); | |
771 | vmlinux_warned = true; | |
72b8fa17 | 772 | } |
6cff0e8d KS |
773 | } |
774 | ||
ab81f3fd | 775 | if (al.sym == NULL || !al.sym->ignore) { |
ab81f3fd | 776 | struct hist_entry *he; |
70db7533 | 777 | |
19d4ac3c ACM |
778 | if ((sort__has_parent || symbol_conf.use_callchain) && |
779 | sample->callchain) { | |
246d4ce8 | 780 | err = perf_session__resolve_callchain(session, evsel, al.thread, |
19d4ac3c ACM |
781 | sample->callchain, &parent); |
782 | if (err) | |
783 | return; | |
784 | } | |
785 | ||
ab81f3fd ACM |
786 | he = perf_session__add_hist_entry(session, &al, sample, evsel); |
787 | if (he == NULL) { | |
788 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
789 | return; | |
5807806a | 790 | } |
ab81f3fd | 791 | |
19d4ac3c | 792 | if (symbol_conf.use_callchain) { |
246d4ce8 | 793 | err = callchain_append(he->callchain, &evsel->hists.callchain_cursor, |
19d4ac3c ACM |
794 | sample->period); |
795 | if (err) | |
796 | return; | |
797 | } | |
798 | ||
799 | if (sort_has_symbols) | |
800 | record_precise_ip(he, evsel->idx, ip); | |
5b2bb75a | 801 | } |
ab81f3fd ACM |
802 | |
803 | return; | |
07800601 IM |
804 | } |
805 | ||
aece948f | 806 | static void perf_session__mmap_read_idx(struct perf_session *self, int idx) |
07800601 | 807 | { |
8d50e5b4 | 808 | struct perf_sample sample; |
7b27509f | 809 | struct perf_evsel *evsel; |
8115d60c | 810 | union perf_event *event; |
5538beca | 811 | int ret; |
07800601 | 812 | |
aece948f | 813 | while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) { |
5538beca FW |
814 | ret = perf_session__parse_sample(self, event, &sample); |
815 | if (ret) { | |
816 | pr_err("Can't parse sample, err = %d\n", ret); | |
817 | continue; | |
818 | } | |
04391deb | 819 | |
7b27509f ACM |
820 | evsel = perf_evlist__id2evsel(self->evlist, sample.id); |
821 | assert(evsel != NULL); | |
822 | ||
5b2bb75a | 823 | if (event->header.type == PERF_RECORD_SAMPLE) |
7b27509f ACM |
824 | perf_event__process_sample(event, evsel, &sample, self); |
825 | else if (event->header.type < PERF_RECORD_MAX) { | |
826 | hists__inc_nr_events(&evsel->hists, event->header.type); | |
d20deb64 | 827 | perf_event__process(&top.ops, event, &sample, self); |
7b27509f ACM |
828 | } else |
829 | ++self->hists.stats.nr_unknown_events; | |
07800601 | 830 | } |
07800601 IM |
831 | } |
832 | ||
d8f66248 | 833 | static void perf_session__mmap_read(struct perf_session *self) |
2f01190a | 834 | { |
70db7533 ACM |
835 | int i; |
836 | ||
aece948f ACM |
837 | for (i = 0; i < top.evlist->nr_mmaps; i++) |
838 | perf_session__mmap_read_idx(self, i); | |
2f01190a FW |
839 | } |
840 | ||
72cb7013 ACM |
841 | static void start_counters(struct perf_evlist *evlist) |
842 | { | |
727ab04e ACM |
843 | struct perf_evsel *counter, *first; |
844 | ||
845 | first = list_entry(evlist->entries.next, struct perf_evsel, node); | |
7e4ff9e3 | 846 | |
72cb7013 ACM |
847 | list_for_each_entry(counter, &evlist->entries, node) { |
848 | struct perf_event_attr *attr = &counter->attr; | |
727ab04e ACM |
849 | struct xyarray *group_fd = NULL; |
850 | ||
851 | if (group && counter != first) | |
852 | group_fd = first->fd; | |
716c69fe | 853 | |
72cb7013 ACM |
854 | attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; |
855 | ||
8c3e10eb | 856 | if (top.freq) { |
72cb7013 ACM |
857 | attr->sample_type |= PERF_SAMPLE_PERIOD; |
858 | attr->freq = 1; | |
8c3e10eb | 859 | attr->sample_freq = top.freq; |
72cb7013 | 860 | } |
d6d901c2 | 861 | |
70db7533 ACM |
862 | if (evlist->nr_entries > 1) { |
863 | attr->sample_type |= PERF_SAMPLE_ID; | |
864 | attr->read_format |= PERF_FORMAT_ID; | |
865 | } | |
866 | ||
19d4ac3c ACM |
867 | if (symbol_conf.use_callchain) |
868 | attr->sample_type |= PERF_SAMPLE_CALLCHAIN; | |
869 | ||
72cb7013 | 870 | attr->mmap = 1; |
ab81f3fd | 871 | attr->comm = 1; |
5d2cd909 | 872 | attr->inherit = inherit; |
7b27509f ACM |
873 | retry_sample_id: |
874 | attr->sample_id_all = sample_id_all_avail ? 1 : 0; | |
72cb7013 | 875 | try_again: |
8c3e10eb | 876 | if (perf_evsel__open(counter, top.evlist->cpus, |
727ab04e ACM |
877 | top.evlist->threads, group, |
878 | group_fd) < 0) { | |
d6d901c2 ZY |
879 | int err = errno; |
880 | ||
c286c419 | 881 | if (err == EPERM || err == EACCES) { |
b8631e6e | 882 | ui__error_paranoid(); |
c286c419 | 883 | goto out_err; |
7b27509f ACM |
884 | } else if (err == EINVAL && sample_id_all_avail) { |
885 | /* | |
886 | * Old kernel, no attr->sample_id_type_all field | |
887 | */ | |
888 | sample_id_all_avail = false; | |
889 | goto retry_sample_id; | |
c286c419 | 890 | } |
d6d901c2 ZY |
891 | /* |
892 | * If it's cycles then fall back to hrtimer | |
893 | * based cpu-clock-tick sw counter, which | |
894 | * is always available even if no PMU support: | |
895 | */ | |
72cb7013 ACM |
896 | if (attr->type == PERF_TYPE_HARDWARE && |
897 | attr->config == PERF_COUNT_HW_CPU_CYCLES) { | |
d6d901c2 | 898 | if (verbose) |
c286c419 ACM |
899 | ui__warning("Cycles event not supported,\n" |
900 | "trying to fall back to cpu-clock-ticks\n"); | |
d6d901c2 ZY |
901 | |
902 | attr->type = PERF_TYPE_SOFTWARE; | |
903 | attr->config = PERF_COUNT_SW_CPU_CLOCK; | |
904 | goto try_again; | |
905 | } | |
c286c419 | 906 | |
ca6a4258 DA |
907 | if (err == ENOENT) { |
908 | ui__warning("The %s event is not supported.\n", | |
909 | event_name(counter)); | |
910 | goto out_err; | |
911 | } | |
912 | ||
c286c419 ACM |
913 | ui__warning("The sys_perf_event_open() syscall " |
914 | "returned with %d (%s). /bin/dmesg " | |
915 | "may provide additional information.\n" | |
916 | "No CONFIG_PERF_EVENTS=y kernel support " | |
917 | "configured?\n", err, strerror(err)); | |
918 | goto out_err; | |
d6d901c2 | 919 | } |
716c69fe | 920 | } |
70db7533 | 921 | |
c286c419 ACM |
922 | if (perf_evlist__mmap(evlist, mmap_pages, false) < 0) { |
923 | ui__warning("Failed to mmap with %d (%s)\n", | |
924 | errno, strerror(errno)); | |
925 | goto out_err; | |
926 | } | |
927 | ||
928 | return; | |
929 | ||
930 | out_err: | |
931 | exit_browser(0); | |
932 | exit(0); | |
716c69fe IM |
933 | } |
934 | ||
19d4ac3c ACM |
935 | static int setup_sample_type(void) |
936 | { | |
937 | if (!sort_has_symbols) { | |
938 | if (symbol_conf.use_callchain) { | |
939 | ui__warning("Selected -g but \"sym\" not present in --sort/-s."); | |
940 | return -EINVAL; | |
941 | } | |
942 | } else if (!dont_use_callchains && callchain_param.mode != CHAIN_NONE) { | |
943 | if (callchain_register_param(&callchain_param) < 0) { | |
944 | ui__warning("Can't register callchain params.\n"); | |
945 | return -EINVAL; | |
946 | } | |
947 | } | |
948 | ||
949 | return 0; | |
950 | } | |
951 | ||
716c69fe IM |
952 | static int __cmd_top(void) |
953 | { | |
954 | pthread_t thread; | |
19d4ac3c | 955 | int ret; |
d8f66248 | 956 | /* |
b3165f41 ACM |
957 | * FIXME: perf_session__new should allow passing a O_MMAP, so that all this |
958 | * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. | |
d8f66248 | 959 | */ |
dcc101d1 ACM |
960 | top.session = perf_session__new(NULL, O_WRONLY, false, false, NULL); |
961 | if (top.session == NULL) | |
b3165f41 | 962 | return -ENOMEM; |
07800601 | 963 | |
19d4ac3c ACM |
964 | ret = setup_sample_type(); |
965 | if (ret) | |
966 | goto out_delete; | |
967 | ||
8c3e10eb | 968 | if (top.target_tid != -1) |
d20deb64 | 969 | perf_event__synthesize_thread_map(&top.ops, top.evlist->threads, |
dcc101d1 | 970 | perf_event__process, top.session); |
5b2bb75a | 971 | else |
d20deb64 | 972 | perf_event__synthesize_threads(&top.ops, perf_event__process, top.session); |
5b2bb75a | 973 | |
8c3e10eb | 974 | start_counters(top.evlist); |
dcc101d1 ACM |
975 | top.session->evlist = top.evlist; |
976 | perf_session__update_sample_type(top.session); | |
07800601 | 977 | |
2f01190a | 978 | /* Wait for a minimal set of events before starting the snapshot */ |
8c3e10eb | 979 | poll(top.evlist->pollfd, top.evlist->nr_fds, 100); |
2f01190a | 980 | |
dcc101d1 | 981 | perf_session__mmap_read(top.session); |
2f01190a | 982 | |
c0443df1 | 983 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
dcc101d1 | 984 | display_thread), NULL)) { |
07800601 IM |
985 | printf("Could not create display thread.\n"); |
986 | exit(-1); | |
987 | } | |
988 | ||
989 | if (realtime_prio) { | |
990 | struct sched_param param; | |
991 | ||
992 | param.sched_priority = realtime_prio; | |
993 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { | |
994 | printf("Could not set realtime priority.\n"); | |
995 | exit(-1); | |
996 | } | |
997 | } | |
998 | ||
999 | while (1) { | |
8c3e10eb | 1000 | u64 hits = top.samples; |
07800601 | 1001 | |
dcc101d1 | 1002 | perf_session__mmap_read(top.session); |
07800601 | 1003 | |
8c3e10eb ACM |
1004 | if (hits == top.samples) |
1005 | ret = poll(top.evlist->pollfd, top.evlist->nr_fds, 100); | |
07800601 IM |
1006 | } |
1007 | ||
19d4ac3c ACM |
1008 | out_delete: |
1009 | perf_session__delete(top.session); | |
1010 | top.session = NULL; | |
1011 | ||
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | static int | |
1016 | parse_callchain_opt(const struct option *opt __used, const char *arg, | |
1017 | int unset) | |
1018 | { | |
1019 | char *tok, *tok2; | |
1020 | char *endptr; | |
1021 | ||
1022 | /* | |
1023 | * --no-call-graph | |
1024 | */ | |
1025 | if (unset) { | |
1026 | dont_use_callchains = true; | |
1027 | return 0; | |
1028 | } | |
1029 | ||
1030 | symbol_conf.use_callchain = true; | |
1031 | ||
1032 | if (!arg) | |
1033 | return 0; | |
1034 | ||
1035 | tok = strtok((char *)arg, ","); | |
1036 | if (!tok) | |
1037 | return -1; | |
1038 | ||
1039 | /* get the output mode */ | |
1040 | if (!strncmp(tok, "graph", strlen(arg))) | |
1041 | callchain_param.mode = CHAIN_GRAPH_ABS; | |
1042 | ||
1043 | else if (!strncmp(tok, "flat", strlen(arg))) | |
1044 | callchain_param.mode = CHAIN_FLAT; | |
1045 | ||
1046 | else if (!strncmp(tok, "fractal", strlen(arg))) | |
1047 | callchain_param.mode = CHAIN_GRAPH_REL; | |
1048 | ||
1049 | else if (!strncmp(tok, "none", strlen(arg))) { | |
1050 | callchain_param.mode = CHAIN_NONE; | |
1051 | symbol_conf.use_callchain = false; | |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | else | |
1057 | return -1; | |
1058 | ||
1059 | /* get the min percentage */ | |
1060 | tok = strtok(NULL, ","); | |
1061 | if (!tok) | |
1062 | goto setup; | |
1063 | ||
1064 | callchain_param.min_percent = strtod(tok, &endptr); | |
1065 | if (tok == endptr) | |
1066 | return -1; | |
1067 | ||
1068 | /* get the print limit */ | |
1069 | tok2 = strtok(NULL, ","); | |
1070 | if (!tok2) | |
1071 | goto setup; | |
1072 | ||
1073 | if (tok2[0] != 'c') { | |
1074 | callchain_param.print_limit = strtod(tok2, &endptr); | |
1075 | tok2 = strtok(NULL, ","); | |
1076 | if (!tok2) | |
1077 | goto setup; | |
1078 | } | |
1079 | ||
1080 | /* get the call chain order */ | |
1081 | if (!strcmp(tok2, "caller")) | |
1082 | callchain_param.order = ORDER_CALLER; | |
1083 | else if (!strcmp(tok2, "callee")) | |
1084 | callchain_param.order = ORDER_CALLEE; | |
1085 | else | |
1086 | return -1; | |
1087 | setup: | |
1088 | if (callchain_register_param(&callchain_param) < 0) { | |
1089 | fprintf(stderr, "Can't register callchain params\n"); | |
1090 | return -1; | |
1091 | } | |
07800601 IM |
1092 | return 0; |
1093 | } | |
b456bae0 IM |
1094 | |
1095 | static const char * const top_usage[] = { | |
1096 | "perf top [<options>]", | |
1097 | NULL | |
1098 | }; | |
1099 | ||
b456bae0 | 1100 | static const struct option options[] = { |
8c3e10eb | 1101 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1102 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1103 | parse_events_option), |
b456bae0 IM |
1104 | OPT_INTEGER('c', "count", &default_interval, |
1105 | "event period to sample"), | |
8c3e10eb | 1106 | OPT_INTEGER('p', "pid", &top.target_pid, |
d6d901c2 | 1107 | "profile events on existing process id"), |
8c3e10eb | 1108 | OPT_INTEGER('t', "tid", &top.target_tid, |
d6d901c2 | 1109 | "profile events on existing thread id"), |
b456bae0 IM |
1110 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
1111 | "system-wide collection from all CPUs"), | |
8c3e10eb | 1112 | OPT_STRING('C', "cpu", &top.cpu_list, "cpu", |
c45c6ea2 | 1113 | "list of cpus to monitor"), |
b32d133a ACM |
1114 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1115 | "file", "vmlinux pathname"), | |
8c3e10eb | 1116 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1117 | "hide kernel symbols"), |
1967936d | 1118 | OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"), |
b456bae0 IM |
1119 | OPT_INTEGER('r', "realtime", &realtime_prio, |
1120 | "collect data with this RT SCHED_FIFO priority"), | |
8c3e10eb | 1121 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 IM |
1122 | "number of seconds to delay between refreshes"), |
1123 | OPT_BOOLEAN('D', "dump-symtab", &dump_symtab, | |
1124 | "dump the symbol table used for profiling"), | |
8c3e10eb | 1125 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 IM |
1126 | "only display functions with more events than this"), |
1127 | OPT_BOOLEAN('g', "group", &group, | |
1128 | "put the counters into a counter group"), | |
0fdc7e67 MG |
1129 | OPT_BOOLEAN('i', "inherit", &inherit, |
1130 | "child tasks inherit counters"), | |
ab81f3fd | 1131 | OPT_STRING(0, "sym-annotate", &sym_filter, "symbol name", |
6cff0e8d | 1132 | "symbol to annotate"), |
8c3e10eb | 1133 | OPT_BOOLEAN('z', "zero", &top.zero, |
b456bae0 | 1134 | "zero history across updates"), |
8c3e10eb | 1135 | OPT_INTEGER('F', "freq", &top.freq, |
b456bae0 | 1136 | "profile at this frequency"), |
8c3e10eb | 1137 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1138 | "display this many functions"), |
8c3e10eb | 1139 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1140 | "hide user symbols"), |
c0443df1 ACM |
1141 | OPT_BOOLEAN(0, "tui", &use_tui, "Use the TUI interface"), |
1142 | OPT_BOOLEAN(0, "stdio", &use_stdio, "Use the stdio interface"), | |
c0555642 | 1143 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1144 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd ACM |
1145 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1146 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
1147 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, | |
1148 | "Show a column with the number of samples"), | |
19d4ac3c ACM |
1149 | OPT_CALLBACK_DEFAULT('G', "call-graph", NULL, "output_type,min_percent, call_order", |
1150 | "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. " | |
1151 | "Default: fractal,0.5,callee", &parse_callchain_opt, | |
1152 | callchain_default_opt), | |
ab81f3fd ACM |
1153 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1154 | "Show a column with the sum of periods"), | |
1155 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1156 | "only consider symbols in these dsos"), | |
1157 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1158 | "only consider symbols in these comms"), | |
1159 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1160 | "only consider these symbols"), | |
64c6f0c7 ACM |
1161 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1162 | "Interleave source code with assembly code (default)"), | |
1163 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1164 | "Display raw encoding of assembly instructions (default)"), | |
1165 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", | |
1166 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
b456bae0 IM |
1167 | OPT_END() |
1168 | }; | |
1169 | ||
f37a291c | 1170 | int cmd_top(int argc, const char **argv, const char *prefix __used) |
b456bae0 | 1171 | { |
69aad6f1 ACM |
1172 | struct perf_evsel *pos; |
1173 | int status = -ENOMEM; | |
b456bae0 | 1174 | |
8c3e10eb ACM |
1175 | top.evlist = perf_evlist__new(NULL, NULL); |
1176 | if (top.evlist == NULL) | |
361c99a6 ACM |
1177 | return -ENOMEM; |
1178 | ||
ab81f3fd | 1179 | symbol_conf.exclude_other = false; |
b456bae0 | 1180 | |
b456bae0 IM |
1181 | argc = parse_options(argc, argv, options, top_usage, 0); |
1182 | if (argc) | |
1183 | usage_with_options(top_usage, options); | |
1184 | ||
ab81f3fd ACM |
1185 | if (sort_order == default_sort_order) |
1186 | sort_order = "dso,symbol"; | |
1187 | ||
1188 | setup_sorting(top_usage, options); | |
1189 | ||
c0443df1 ACM |
1190 | if (use_stdio) |
1191 | use_browser = 0; | |
1192 | else if (use_tui) | |
1193 | use_browser = 1; | |
1194 | ||
1195 | setup_browser(false); | |
1196 | ||
b456bae0 | 1197 | /* CPU and PID are mutually exclusive */ |
8c3e10eb | 1198 | if (top.target_tid > 0 && top.cpu_list) { |
b456bae0 IM |
1199 | printf("WARNING: PID switch overriding CPU\n"); |
1200 | sleep(1); | |
8c3e10eb | 1201 | top.cpu_list = NULL; |
b456bae0 IM |
1202 | } |
1203 | ||
8c3e10eb ACM |
1204 | if (top.target_pid != -1) |
1205 | top.target_tid = top.target_pid; | |
7e2ed097 | 1206 | |
8c3e10eb ACM |
1207 | if (perf_evlist__create_maps(top.evlist, top.target_pid, |
1208 | top.target_tid, top.cpu_list) < 0) | |
7e2ed097 ACM |
1209 | usage_with_options(top_usage, options); |
1210 | ||
8c3e10eb ACM |
1211 | if (!top.evlist->nr_entries && |
1212 | perf_evlist__add_default(top.evlist) < 0) { | |
69aad6f1 ACM |
1213 | pr_err("Not enough memory for event selector list\n"); |
1214 | return -ENOMEM; | |
1215 | } | |
5a8e5a30 | 1216 | |
d04b35f8 ACM |
1217 | symbol_conf.nr_events = top.evlist->nr_entries; |
1218 | ||
8c3e10eb ACM |
1219 | if (top.delay_secs < 1) |
1220 | top.delay_secs = 1; | |
2f335a02 | 1221 | |
7e4ff9e3 MG |
1222 | /* |
1223 | * User specified count overrides default frequency. | |
1224 | */ | |
1225 | if (default_interval) | |
8c3e10eb ACM |
1226 | top.freq = 0; |
1227 | else if (top.freq) { | |
1228 | default_interval = top.freq; | |
7e4ff9e3 MG |
1229 | } else { |
1230 | fprintf(stderr, "frequency and count are zero, aborting\n"); | |
1231 | exit(EXIT_FAILURE); | |
1232 | } | |
1233 | ||
8c3e10eb ACM |
1234 | list_for_each_entry(pos, &top.evlist->entries, node) { |
1235 | if (perf_evsel__alloc_fd(pos, top.evlist->cpus->nr, | |
1236 | top.evlist->threads->nr) < 0) | |
69aad6f1 ACM |
1237 | goto out_free_fd; |
1238 | /* | |
1239 | * Fill in the ones not specifically initialized via -c: | |
1240 | */ | |
1241 | if (pos->attr.sample_period) | |
1242 | continue; | |
1243 | ||
1244 | pos->attr.sample_period = default_interval; | |
1245 | } | |
1246 | ||
8c3e10eb ACM |
1247 | if (perf_evlist__alloc_pollfd(top.evlist) < 0 || |
1248 | perf_evlist__alloc_mmap(top.evlist) < 0) | |
5c581041 ACM |
1249 | goto out_free_fd; |
1250 | ||
8c3e10eb | 1251 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
cc841580 | 1252 | |
ab81f3fd | 1253 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1254 | |
1255 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1256 | if (symbol__init() < 0) | |
1257 | return -1; | |
1258 | ||
ab81f3fd ACM |
1259 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); |
1260 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); | |
1261 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); | |
1262 | ||
19d4ac3c ACM |
1263 | /* |
1264 | * Avoid annotation data structures overhead when symbols aren't on the | |
1265 | * sort list. | |
1266 | */ | |
1267 | sort_has_symbols = sort_sym.list.next != NULL; | |
1268 | ||
13cc5079 | 1269 | get_term_dimensions(&winsize); |
8c3e10eb | 1270 | if (top.print_entries == 0) { |
13cc5079 | 1271 | update_print_entries(&winsize); |
3b6ed988 ACM |
1272 | signal(SIGWINCH, sig_winch_handler); |
1273 | } | |
1274 | ||
69aad6f1 ACM |
1275 | status = __cmd_top(); |
1276 | out_free_fd: | |
8c3e10eb | 1277 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1278 | |
1279 | return status; | |
b456bae0 | 1280 | } |