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" |
07800601 | 43 | |
8f28827a FW |
44 | #include "util/debug.h" |
45 | ||
07800601 | 46 | #include <assert.h> |
31d68e7b | 47 | #include <elf.h> |
07800601 | 48 | #include <fcntl.h> |
0e9b20b8 | 49 | |
07800601 | 50 | #include <stdio.h> |
923c42c1 MG |
51 | #include <termios.h> |
52 | #include <unistd.h> | |
9486aa38 | 53 | #include <inttypes.h> |
0e9b20b8 | 54 | |
07800601 | 55 | #include <errno.h> |
07800601 IM |
56 | #include <time.h> |
57 | #include <sched.h> | |
07800601 IM |
58 | |
59 | #include <sys/syscall.h> | |
60 | #include <sys/ioctl.h> | |
61 | #include <sys/poll.h> | |
62 | #include <sys/prctl.h> | |
63 | #include <sys/wait.h> | |
64 | #include <sys/uio.h> | |
31d68e7b | 65 | #include <sys/utsname.h> |
07800601 IM |
66 | #include <sys/mman.h> |
67 | ||
68 | #include <linux/unistd.h> | |
69 | #include <linux/types.h> | |
70 | ||
11859e82 ACM |
71 | static volatile int done; |
72 | ||
1758af10 | 73 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 74 | { |
1758af10 ACM |
75 | if (top->print_entries > 9) |
76 | top->print_entries -= 9; | |
3b6ed988 ACM |
77 | } |
78 | ||
1d037ca1 IT |
79 | static void perf_top__sig_winch(int sig __maybe_unused, |
80 | siginfo_t *info __maybe_unused, void *arg) | |
3b6ed988 | 81 | { |
1758af10 ACM |
82 | struct perf_top *top = arg; |
83 | ||
84 | get_term_dimensions(&top->winsize); | |
509605db SE |
85 | if (!top->print_entries |
86 | || (top->print_entries+4) > top->winsize.ws_row) { | |
87 | top->print_entries = top->winsize.ws_row; | |
88 | } else { | |
89 | top->print_entries += 4; | |
90 | top->winsize.ws_row = top->print_entries; | |
91 | } | |
1758af10 | 92 | perf_top__update_print_entries(top); |
3b6ed988 ACM |
93 | } |
94 | ||
1758af10 | 95 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 MG |
96 | { |
97 | struct symbol *sym; | |
ce6f4fab | 98 | struct annotation *notes; |
439d473b | 99 | struct map *map; |
36532461 | 100 | int err = -1; |
923c42c1 | 101 | |
ab81f3fd | 102 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
103 | return -1; |
104 | ||
ab81f3fd ACM |
105 | sym = he->ms.sym; |
106 | map = he->ms.map; | |
b0a9ab62 ACM |
107 | |
108 | /* | |
109 | * We can't annotate with just /proc/kallsyms | |
110 | */ | |
44f24cb3 | 111 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS) { |
ce6f4fab ACM |
112 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
113 | "path\n", sym->name); | |
114 | sleep(1); | |
b0a9ab62 | 115 | return -1; |
b269876c ACM |
116 | } |
117 | ||
ce6f4fab ACM |
118 | notes = symbol__annotation(sym); |
119 | if (notes->src != NULL) { | |
120 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
121 | goto out_assign; |
122 | } | |
923c42c1 | 123 | |
ce6f4fab | 124 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 125 | |
d04b35f8 | 126 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 127 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
128 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
129 | sym->name); | |
ce6f4fab | 130 | sleep(1); |
c97cf422 | 131 | return err; |
923c42c1 | 132 | } |
36532461 | 133 | |
ab81f3fd | 134 | err = symbol__annotate(sym, map, 0); |
36532461 | 135 | if (err == 0) { |
923c42c1 | 136 | out_assign: |
1758af10 | 137 | top->sym_filter_entry = he; |
36532461 | 138 | } |
c97cf422 | 139 | |
ce6f4fab | 140 | pthread_mutex_unlock(¬es->lock); |
36532461 | 141 | return err; |
923c42c1 MG |
142 | } |
143 | ||
ab81f3fd | 144 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 145 | { |
ab81f3fd | 146 | struct symbol *sym = he->ms.sym; |
36532461 | 147 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
148 | } |
149 | ||
31d68e7b ACM |
150 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
151 | { | |
152 | struct utsname uts; | |
153 | int err = uname(&uts); | |
154 | ||
155 | ui__warning("Out of bounds address found:\n\n" | |
156 | "Addr: %" PRIx64 "\n" | |
157 | "DSO: %s %c\n" | |
158 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
159 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
160 | "Arch: %s\n" | |
161 | "Kernel: %s\n" | |
162 | "Tools: %s\n\n" | |
163 | "Not all samples will be on the annotation output.\n\n" | |
164 | "Please report to linux-kernel@vger.kernel.org\n", | |
165 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
166 | map->start, map->end, sym->start, sym->end, | |
167 | sym->binding == STB_GLOBAL ? 'g' : | |
168 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
169 | err ? "[unknown]" : uts.machine, | |
170 | err ? "[unknown]" : uts.release, perf_version_string); | |
171 | if (use_browser <= 0) | |
172 | sleep(5); | |
173 | ||
174 | map->erange_warned = true; | |
175 | } | |
176 | ||
1758af10 ACM |
177 | static void perf_top__record_precise_ip(struct perf_top *top, |
178 | struct hist_entry *he, | |
179 | int counter, u64 ip) | |
923c42c1 | 180 | { |
ce6f4fab ACM |
181 | struct annotation *notes; |
182 | struct symbol *sym; | |
31d68e7b | 183 | int err; |
ce6f4fab | 184 | |
ab81f3fd | 185 | if (he == NULL || he->ms.sym == NULL || |
1758af10 ACM |
186 | ((top->sym_filter_entry == NULL || |
187 | top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) | |
923c42c1 MG |
188 | return; |
189 | ||
ab81f3fd | 190 | sym = he->ms.sym; |
ce6f4fab ACM |
191 | notes = symbol__annotation(sym); |
192 | ||
193 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
194 | return; |
195 | ||
d04b35f8 | 196 | if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { |
ab81f3fd ACM |
197 | pthread_mutex_unlock(¬es->lock); |
198 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
199 | sym->name); | |
200 | sleep(1); | |
201 | return; | |
202 | } | |
203 | ||
204 | ip = he->ms.map->map_ip(he->ms.map, ip); | |
31d68e7b | 205 | err = symbol__inc_addr_samples(sym, he->ms.map, counter, ip); |
c7ad21af | 206 | |
ce6f4fab | 207 | pthread_mutex_unlock(¬es->lock); |
31d68e7b ACM |
208 | |
209 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
210 | ui__warn_map_erange(he->ms.map, sym, ip); | |
923c42c1 MG |
211 | } |
212 | ||
1758af10 | 213 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 214 | { |
1758af10 | 215 | struct hist_entry *he = top->sym_filter_entry; |
ce6f4fab | 216 | struct annotation *notes; |
923c42c1 | 217 | struct symbol *symbol; |
36532461 | 218 | int more; |
923c42c1 | 219 | |
ab81f3fd | 220 | if (!he) |
923c42c1 MG |
221 | return; |
222 | ||
ab81f3fd | 223 | symbol = he->ms.sym; |
ce6f4fab ACM |
224 | notes = symbol__annotation(symbol); |
225 | ||
226 | pthread_mutex_lock(¬es->lock); | |
227 | ||
228 | if (notes->src == NULL) | |
229 | goto out_unlock; | |
923c42c1 | 230 | |
7289f83c | 231 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 232 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 233 | |
1758af10 ACM |
234 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx, |
235 | 0, top->sym_pcnt_filter, top->print_entries, 4); | |
236 | if (top->zero) | |
237 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
36532461 | 238 | else |
1758af10 | 239 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); |
36532461 | 240 | if (more != 0) |
923c42c1 | 241 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
242 | out_unlock: |
243 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 244 | } |
07800601 | 245 | |
07800601 IM |
246 | static const char CONSOLE_CLEAR[] = "\e[H\e[2J"; |
247 | ||
743eb868 ACM |
248 | static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, |
249 | struct addr_location *al, | |
250 | struct perf_sample *sample) | |
de04687f | 251 | { |
ab81f3fd ACM |
252 | struct hist_entry *he; |
253 | ||
254 | he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); | |
255 | if (he == NULL) | |
256 | return NULL; | |
257 | ||
ab81f3fd ACM |
258 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
259 | return he; | |
de04687f | 260 | } |
07800601 | 261 | |
1758af10 | 262 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 263 | { |
8c3e10eb ACM |
264 | char bf[160]; |
265 | int printed = 0; | |
1758af10 | 266 | const int win_width = top->winsize.ws_col - 1; |
d94b9430 | 267 | |
0f5486b5 | 268 | puts(CONSOLE_CLEAR); |
07800601 | 269 | |
1758af10 | 270 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 271 | printf("%s\n", bf); |
07800601 | 272 | |
1758af10 | 273 | perf_top__reset_sample_counters(top); |
07800601 | 274 | |
1a105f74 | 275 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 276 | |
1758af10 ACM |
277 | if (top->sym_evsel->hists.stats.nr_lost_warned != |
278 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { | |
279 | top->sym_evsel->hists.stats.nr_lost_warned = | |
280 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
281 | color_fprintf(stdout, PERF_COLOR_RED, |
282 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
1758af10 | 283 | top->sym_evsel->hists.stats.nr_lost_warned); |
ab81f3fd | 284 | ++printed; |
93fc64f1 ACM |
285 | } |
286 | ||
1758af10 ACM |
287 | if (top->sym_filter_entry) { |
288 | perf_top__show_details(top); | |
923c42c1 MG |
289 | return; |
290 | } | |
291 | ||
1758af10 ACM |
292 | hists__collapse_resort_threaded(&top->sym_evsel->hists); |
293 | hists__output_resort_threaded(&top->sym_evsel->hists); | |
294 | hists__decay_entries_threaded(&top->sym_evsel->hists, | |
295 | top->hide_user_symbols, | |
296 | top->hide_kernel_symbols); | |
297 | hists__output_recalc_col_len(&top->sym_evsel->hists, | |
298 | top->winsize.ws_row - 3); | |
7cc017ed | 299 | putchar('\n'); |
41724e4c | 300 | hists__fprintf(&top->sym_evsel->hists, false, |
1758af10 | 301 | top->winsize.ws_row - 4 - printed, win_width, stdout); |
07800601 IM |
302 | } |
303 | ||
923c42c1 MG |
304 | static void prompt_integer(int *target, const char *msg) |
305 | { | |
306 | char *buf = malloc(0), *p; | |
307 | size_t dummy = 0; | |
308 | int tmp; | |
309 | ||
310 | fprintf(stdout, "\n%s: ", msg); | |
311 | if (getline(&buf, &dummy, stdin) < 0) | |
312 | return; | |
313 | ||
314 | p = strchr(buf, '\n'); | |
315 | if (p) | |
316 | *p = 0; | |
317 | ||
318 | p = buf; | |
319 | while(*p) { | |
320 | if (!isdigit(*p)) | |
321 | goto out_free; | |
322 | p++; | |
323 | } | |
324 | tmp = strtoul(buf, NULL, 10); | |
325 | *target = tmp; | |
326 | out_free: | |
327 | free(buf); | |
328 | } | |
329 | ||
330 | static void prompt_percent(int *target, const char *msg) | |
331 | { | |
332 | int tmp = 0; | |
333 | ||
334 | prompt_integer(&tmp, msg); | |
335 | if (tmp >= 0 && tmp <= 100) | |
336 | *target = tmp; | |
337 | } | |
338 | ||
1758af10 | 339 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
340 | { |
341 | char *buf = malloc(0), *p; | |
1758af10 | 342 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
ab81f3fd | 343 | struct rb_node *next; |
923c42c1 MG |
344 | size_t dummy = 0; |
345 | ||
346 | /* zero counters of active symbol */ | |
347 | if (syme) { | |
923c42c1 | 348 | __zero_source_counters(syme); |
1758af10 | 349 | top->sym_filter_entry = NULL; |
923c42c1 MG |
350 | } |
351 | ||
352 | fprintf(stdout, "\n%s: ", msg); | |
353 | if (getline(&buf, &dummy, stdin) < 0) | |
354 | goto out_free; | |
355 | ||
356 | p = strchr(buf, '\n'); | |
357 | if (p) | |
358 | *p = 0; | |
359 | ||
1758af10 | 360 | next = rb_first(&top->sym_evsel->hists.entries); |
ab81f3fd ACM |
361 | while (next) { |
362 | n = rb_entry(next, struct hist_entry, rb_node); | |
363 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
364 | found = n; | |
923c42c1 MG |
365 | break; |
366 | } | |
ab81f3fd | 367 | next = rb_next(&n->rb_node); |
923c42c1 MG |
368 | } |
369 | ||
370 | if (!found) { | |
66aeb6d5 | 371 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 372 | sleep(1); |
923c42c1 | 373 | } else |
1758af10 | 374 | perf_top__parse_source(top, found); |
923c42c1 MG |
375 | |
376 | out_free: | |
377 | free(buf); | |
378 | } | |
379 | ||
1758af10 | 380 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 381 | { |
091bd2e9 MG |
382 | char *name = NULL; |
383 | ||
1758af10 ACM |
384 | if (top->sym_filter_entry) { |
385 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
386 | name = sym->name; |
387 | } | |
388 | ||
389 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
390 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
391 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 392 | |
1758af10 | 393 | if (top->evlist->nr_entries > 1) |
7289f83c | 394 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 395 | |
1758af10 | 396 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 397 | |
1758af10 | 398 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
399 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
400 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 401 | |
8ffcda17 | 402 | fprintf(stdout, |
1a72cfa6 | 403 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 404 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
405 | fprintf(stdout, |
406 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
407 | top->hide_user_symbols ? "yes" : "no"); |
408 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
409 | fprintf(stdout, "\t[qQ] quit.\n"); |
410 | } | |
411 | ||
1758af10 | 412 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
413 | { |
414 | switch (c) { | |
415 | case 'd': | |
416 | case 'e': | |
417 | case 'f': | |
418 | case 'z': | |
419 | case 'q': | |
420 | case 'Q': | |
8ffcda17 ACM |
421 | case 'K': |
422 | case 'U': | |
6cff0e8d KS |
423 | case 'F': |
424 | case 's': | |
425 | case 'S': | |
091bd2e9 MG |
426 | return 1; |
427 | case 'E': | |
1758af10 | 428 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
429 | default: |
430 | break; | |
091bd2e9 MG |
431 | } |
432 | ||
433 | return 0; | |
923c42c1 MG |
434 | } |
435 | ||
11859e82 | 436 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 437 | { |
11859e82 ACM |
438 | bool ret = true; |
439 | ||
1758af10 | 440 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 MG |
441 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
442 | struct termios tc, save; | |
443 | ||
1758af10 | 444 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
445 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
446 | fflush(stdout); | |
447 | ||
448 | tcgetattr(0, &save); | |
449 | tc = save; | |
450 | tc.c_lflag &= ~(ICANON | ECHO); | |
451 | tc.c_cc[VMIN] = 0; | |
452 | tc.c_cc[VTIME] = 0; | |
453 | tcsetattr(0, TCSANOW, &tc); | |
454 | ||
455 | poll(&stdin_poll, 1, -1); | |
456 | c = getc(stdin); | |
457 | ||
458 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 459 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 460 | return ret; |
091bd2e9 MG |
461 | } |
462 | ||
923c42c1 MG |
463 | switch (c) { |
464 | case 'd': | |
1758af10 ACM |
465 | prompt_integer(&top->delay_secs, "Enter display delay"); |
466 | if (top->delay_secs < 1) | |
467 | top->delay_secs = 1; | |
923c42c1 MG |
468 | break; |
469 | case 'e': | |
1758af10 ACM |
470 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
471 | if (top->print_entries == 0) { | |
472 | struct sigaction act = { | |
473 | .sa_sigaction = perf_top__sig_winch, | |
474 | .sa_flags = SA_SIGINFO, | |
475 | }; | |
476 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
477 | sigaction(SIGWINCH, &act, NULL); | |
509605db SE |
478 | } else { |
479 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
3b6ed988 | 480 | signal(SIGWINCH, SIG_DFL); |
509605db | 481 | } |
923c42c1 MG |
482 | break; |
483 | case 'E': | |
1758af10 | 484 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
485 | /* Select 0 as the default event: */ |
486 | int counter = 0; | |
487 | ||
923c42c1 | 488 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 489 | |
1758af10 | 490 | list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) |
7289f83c | 491 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 492 | |
ec52d976 | 493 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 494 | |
1758af10 | 495 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 496 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 497 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 498 | sleep(1); |
69aad6f1 | 499 | break; |
923c42c1 | 500 | } |
1758af10 ACM |
501 | list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) |
502 | if (top->sym_evsel->idx == counter) | |
69aad6f1 | 503 | break; |
ec52d976 | 504 | } else |
0c21f736 | 505 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
506 | break; |
507 | case 'f': | |
1758af10 | 508 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
509 | break; |
510 | case 'F': | |
1758af10 ACM |
511 | prompt_percent(&top->sym_pcnt_filter, |
512 | "Enter details display event filter (percent)"); | |
923c42c1 | 513 | break; |
8ffcda17 | 514 | case 'K': |
1758af10 | 515 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 516 | break; |
923c42c1 MG |
517 | case 'q': |
518 | case 'Q': | |
519 | printf("exiting.\n"); | |
1758af10 ACM |
520 | if (top->dump_symtab) |
521 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
522 | ret = false; |
523 | break; | |
923c42c1 | 524 | case 's': |
1758af10 | 525 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
526 | break; |
527 | case 'S': | |
1758af10 | 528 | if (!top->sym_filter_entry) |
923c42c1 MG |
529 | break; |
530 | else { | |
1758af10 | 531 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 532 | |
1758af10 | 533 | top->sym_filter_entry = NULL; |
923c42c1 | 534 | __zero_source_counters(syme); |
923c42c1 MG |
535 | } |
536 | break; | |
8ffcda17 | 537 | case 'U': |
1758af10 | 538 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 539 | break; |
923c42c1 | 540 | case 'z': |
1758af10 | 541 | top->zero = !top->zero; |
923c42c1 | 542 | break; |
83a0944f IM |
543 | default: |
544 | break; | |
923c42c1 | 545 | } |
11859e82 ACM |
546 | |
547 | return ret; | |
923c42c1 MG |
548 | } |
549 | ||
ab81f3fd ACM |
550 | static void perf_top__sort_new_samples(void *arg) |
551 | { | |
552 | struct perf_top *t = arg; | |
553 | perf_top__reset_sample_counters(t); | |
554 | ||
555 | if (t->evlist->selected != NULL) | |
556 | t->sym_evsel = t->evlist->selected; | |
557 | ||
558 | hists__collapse_resort_threaded(&t->sym_evsel->hists); | |
559 | hists__output_resort_threaded(&t->sym_evsel->hists); | |
b079d4e9 | 560 | hists__decay_entries_threaded(&t->sym_evsel->hists, |
1758af10 ACM |
561 | t->hide_user_symbols, |
562 | t->hide_kernel_symbols); | |
ab81f3fd ACM |
563 | } |
564 | ||
1758af10 | 565 | static void *display_thread_tui(void *arg) |
c0443df1 | 566 | { |
0d37aa34 | 567 | struct perf_evsel *pos; |
1758af10 | 568 | struct perf_top *top = arg; |
ab81f3fd | 569 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
570 | struct hist_browser_timer hbt = { |
571 | .timer = perf_top__sort_new_samples, | |
572 | .arg = top, | |
573 | .refresh = top->delay_secs, | |
574 | }; | |
ab81f3fd | 575 | |
1758af10 | 576 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
577 | |
578 | /* | |
579 | * Initialize the uid_filter_str, in the future the TUI will allow | |
580 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
581 | * via --uid. | |
582 | */ | |
583 | list_for_each_entry(pos, &top->evlist->entries, node) | |
2376c67a | 584 | pos->hists.uid_filter_str = top->record_opts.target.uid_str; |
0d37aa34 | 585 | |
68d80758 NK |
586 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
587 | &top->session->header.env); | |
ab81f3fd | 588 | |
11859e82 | 589 | done = 1; |
c0443df1 ACM |
590 | return NULL; |
591 | } | |
592 | ||
1758af10 | 593 | static void *display_thread(void *arg) |
07800601 | 594 | { |
0f5486b5 | 595 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 | 596 | struct termios tc, save; |
1758af10 | 597 | struct perf_top *top = arg; |
923c42c1 MG |
598 | int delay_msecs, c; |
599 | ||
600 | tcgetattr(0, &save); | |
601 | tc = save; | |
602 | tc.c_lflag &= ~(ICANON | ECHO); | |
603 | tc.c_cc[VMIN] = 0; | |
604 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 605 | |
3af6e338 | 606 | pthread__unblock_sigwinch(); |
923c42c1 | 607 | repeat: |
1758af10 | 608 | delay_msecs = top->delay_secs * 1000; |
923c42c1 MG |
609 | tcsetattr(0, TCSANOW, &tc); |
610 | /* trash return*/ | |
611 | getc(stdin); | |
07800601 | 612 | |
11859e82 | 613 | while (!done) { |
1758af10 | 614 | perf_top__print_sym_table(top); |
3af6e338 ACM |
615 | /* |
616 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
617 | * refresh screen in both cases. | |
618 | */ | |
619 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
620 | case 0: | |
621 | continue; | |
622 | case -1: | |
623 | if (errno == EINTR) | |
624 | continue; | |
625 | /* Fall trhu */ | |
626 | default: | |
11859e82 ACM |
627 | c = getc(stdin); |
628 | tcsetattr(0, TCSAFLUSH, &save); | |
629 | ||
630 | if (perf_top__handle_keypress(top, c)) | |
631 | goto repeat; | |
632 | done = 1; | |
3af6e338 ACM |
633 | } |
634 | } | |
07800601 IM |
635 | |
636 | return NULL; | |
637 | } | |
638 | ||
2ab52083 | 639 | /* Tag samples to be skipped. */ |
f37a291c | 640 | static const char *skip_symbols[] = { |
4bea8b5c | 641 | "intel_idle", |
2ab52083 | 642 | "default_idle", |
b0e8572f | 643 | "native_safe_halt", |
2ab52083 AB |
644 | "cpu_idle", |
645 | "enter_idle", | |
646 | "exit_idle", | |
647 | "mwait_idle", | |
59b90056 | 648 | "mwait_idle_with_hints", |
8357275b | 649 | "poll_idle", |
3a3393ef AB |
650 | "ppc64_runlatch_off", |
651 | "pseries_dedicated_idle_sleep", | |
2ab52083 AB |
652 | NULL |
653 | }; | |
654 | ||
1d037ca1 | 655 | static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) |
07800601 | 656 | { |
de04687f | 657 | const char *name = sym->name; |
2ab52083 | 658 | int i; |
de04687f | 659 | |
3a3393ef AB |
660 | /* |
661 | * ppc64 uses function descriptors and appends a '.' to the | |
662 | * start of every instruction address. Remove it. | |
663 | */ | |
664 | if (name[0] == '.') | |
665 | name++; | |
666 | ||
de04687f ACM |
667 | if (!strcmp(name, "_text") || |
668 | !strcmp(name, "_etext") || | |
669 | !strcmp(name, "_sinittext") || | |
670 | !strncmp("init_module", name, 11) || | |
671 | !strncmp("cleanup_module", name, 14) || | |
672 | strstr(name, "_text_start") || | |
673 | strstr(name, "_text_end")) | |
07800601 | 674 | return 1; |
07800601 | 675 | |
2ab52083 AB |
676 | for (i = 0; skip_symbols[i]; i++) { |
677 | if (!strcmp(skip_symbols[i], name)) { | |
171b3be9 | 678 | sym->ignore = true; |
2ab52083 AB |
679 | break; |
680 | } | |
681 | } | |
07800601 | 682 | |
07800601 IM |
683 | return 0; |
684 | } | |
685 | ||
1758af10 ACM |
686 | static void perf_event__process_sample(struct perf_tool *tool, |
687 | const union perf_event *event, | |
7b27509f | 688 | struct perf_evsel *evsel, |
8115d60c | 689 | struct perf_sample *sample, |
743eb868 | 690 | struct machine *machine) |
07800601 | 691 | { |
1758af10 | 692 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
19d4ac3c | 693 | struct symbol *parent = NULL; |
8115d60c | 694 | u64 ip = event->ip.ip; |
1ed091c4 | 695 | struct addr_location al; |
19d4ac3c | 696 | int err; |
5b2bb75a | 697 | |
23346f21 | 698 | if (!machine && perf_guest) { |
6b118e92 DA |
699 | static struct intlist *seen; |
700 | ||
701 | if (!seen) | |
ffe0fb76 | 702 | seen = intlist__new(NULL); |
6b118e92 DA |
703 | |
704 | if (!intlist__has_entry(seen, event->ip.pid)) { | |
705 | pr_err("Can't find guest [%d]'s kernel information\n", | |
706 | event->ip.pid); | |
707 | intlist__add(seen, event->ip.pid); | |
708 | } | |
a1645ce1 ZY |
709 | return; |
710 | } | |
711 | ||
0c095715 | 712 | if (!machine) { |
11859e82 | 713 | pr_err("%u unprocessable samples recorded.\r", |
28a6b6aa | 714 | top->session->stats.nr_unprocessable_samples++); |
0c095715 JR |
715 | return; |
716 | } | |
717 | ||
8115d60c | 718 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 719 | top->exact_samples++; |
1676b8a0 | 720 | |
743eb868 | 721 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
8115d60c | 722 | symbol_filter) < 0 || |
72b8fa17 | 723 | al.filtered) |
1ed091c4 | 724 | return; |
07800601 | 725 | |
1758af10 | 726 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
727 | symbol_conf.kptr_restrict && |
728 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
729 | ui__warning( | |
730 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
731 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
732 | "Kernel%s samples will not be resolved.\n", | |
733 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
734 | " modules" : ""); | |
735 | if (use_browser <= 0) | |
736 | sleep(5); | |
1758af10 | 737 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
738 | } |
739 | ||
72b8fa17 | 740 | if (al.sym == NULL) { |
e4a338d0 | 741 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
742 | /* |
743 | * As we do lazy loading of symtabs we only will know if the | |
744 | * specified vmlinux file is invalid when we actually have a | |
745 | * hit in kernel space and then try to load it. So if we get | |
746 | * here and there are _no_ symbols in the DSO backing the | |
747 | * kernel map, bail out. | |
748 | * | |
749 | * We may never get here, for instance, if we use -K/ | |
750 | * --hide-kernel-symbols, even if the user specifies an | |
751 | * invalid --vmlinux ;-) | |
752 | */ | |
1758af10 | 753 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 754 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 755 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
756 | if (symbol_conf.vmlinux_name) { |
757 | ui__warning("The %s file can't be used.\n%s", | |
758 | symbol_conf.vmlinux_name, msg); | |
759 | } else { | |
760 | ui__warning("A vmlinux file was not found.\n%s", | |
761 | msg); | |
762 | } | |
763 | ||
764 | if (use_browser <= 0) | |
765 | sleep(5); | |
1758af10 | 766 | top->vmlinux_warned = true; |
72b8fa17 | 767 | } |
6cff0e8d KS |
768 | } |
769 | ||
ab81f3fd | 770 | if (al.sym == NULL || !al.sym->ignore) { |
ab81f3fd | 771 | struct hist_entry *he; |
70db7533 | 772 | |
19d4ac3c ACM |
773 | if ((sort__has_parent || symbol_conf.use_callchain) && |
774 | sample->callchain) { | |
71ad0f5e JO |
775 | err = machine__resolve_callchain(machine, evsel, |
776 | al.thread, sample, | |
777 | &parent); | |
778 | ||
19d4ac3c ACM |
779 | if (err) |
780 | return; | |
781 | } | |
782 | ||
743eb868 | 783 | he = perf_evsel__add_hist_entry(evsel, &al, sample); |
ab81f3fd ACM |
784 | if (he == NULL) { |
785 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
786 | return; | |
5807806a | 787 | } |
ab81f3fd | 788 | |
19d4ac3c | 789 | if (symbol_conf.use_callchain) { |
47260645 | 790 | err = callchain_append(he->callchain, &callchain_cursor, |
19d4ac3c ACM |
791 | sample->period); |
792 | if (err) | |
793 | return; | |
794 | } | |
795 | ||
1758af10 ACM |
796 | if (top->sort_has_symbols) |
797 | perf_top__record_precise_ip(top, he, evsel->idx, ip); | |
5b2bb75a | 798 | } |
ab81f3fd ACM |
799 | |
800 | return; | |
07800601 IM |
801 | } |
802 | ||
1758af10 | 803 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 804 | { |
8d50e5b4 | 805 | struct perf_sample sample; |
7b27509f | 806 | struct perf_evsel *evsel; |
1758af10 | 807 | struct perf_session *session = top->session; |
8115d60c | 808 | union perf_event *event; |
743eb868 ACM |
809 | struct machine *machine; |
810 | u8 origin; | |
5538beca | 811 | int ret; |
07800601 | 812 | |
1758af10 | 813 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 814 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
815 | if (ret) { |
816 | pr_err("Can't parse sample, err = %d\n", ret); | |
817 | continue; | |
818 | } | |
04391deb | 819 | |
1758af10 | 820 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
821 | assert(evsel != NULL); |
822 | ||
743eb868 ACM |
823 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
824 | ||
5b2bb75a | 825 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 826 | ++top->samples; |
743eb868 ACM |
827 | |
828 | switch (origin) { | |
829 | case PERF_RECORD_MISC_USER: | |
1758af10 ACM |
830 | ++top->us_samples; |
831 | if (top->hide_user_symbols) | |
743eb868 | 832 | continue; |
34ba5122 | 833 | machine = &session->machines.host; |
743eb868 ACM |
834 | break; |
835 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
836 | ++top->kernel_samples; |
837 | if (top->hide_kernel_symbols) | |
743eb868 | 838 | continue; |
34ba5122 | 839 | machine = &session->machines.host; |
743eb868 ACM |
840 | break; |
841 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 ACM |
842 | ++top->guest_kernel_samples; |
843 | machine = perf_session__find_machine(session, event->ip.pid); | |
743eb868 ACM |
844 | break; |
845 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 846 | ++top->guest_us_samples; |
743eb868 ACM |
847 | /* |
848 | * TODO: we don't process guest user from host side | |
849 | * except simple counting. | |
850 | */ | |
851 | /* Fall thru */ | |
852 | default: | |
853 | continue; | |
854 | } | |
855 | ||
856 | ||
1758af10 ACM |
857 | if (event->header.type == PERF_RECORD_SAMPLE) { |
858 | perf_event__process_sample(&top->tool, event, evsel, | |
859 | &sample, machine); | |
860 | } else if (event->header.type < PERF_RECORD_MAX) { | |
7b27509f | 861 | hists__inc_nr_events(&evsel->hists, event->header.type); |
b0a7d1a0 | 862 | machine__process_event(machine, event); |
7b27509f | 863 | } else |
28a6b6aa | 864 | ++session->stats.nr_unknown_events; |
07800601 | 865 | } |
07800601 IM |
866 | } |
867 | ||
1758af10 | 868 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 869 | { |
70db7533 ACM |
870 | int i; |
871 | ||
1758af10 ACM |
872 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
873 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
874 | } |
875 | ||
11859e82 | 876 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 877 | { |
56e52e85 | 878 | char msg[512]; |
6a4bb04c | 879 | struct perf_evsel *counter; |
1758af10 | 880 | struct perf_evlist *evlist = top->evlist; |
2376c67a | 881 | struct perf_record_opts *opts = &top->record_opts; |
727ab04e | 882 | |
2376c67a | 883 | perf_evlist__config(evlist, opts); |
7e4ff9e3 | 884 | |
72cb7013 | 885 | list_for_each_entry(counter, &evlist->entries, node) { |
72cb7013 | 886 | try_again: |
1758af10 | 887 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 888 | top->evlist->threads) < 0) { |
56e52e85 | 889 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
d6d901c2 | 890 | if (verbose) |
c0a54341 | 891 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
892 | goto try_again; |
893 | } | |
c286c419 | 894 | |
56e52e85 ACM |
895 | perf_evsel__open_strerror(counter, &opts->target, |
896 | errno, msg, sizeof(msg)); | |
897 | ui__error("%s\n", msg); | |
c286c419 | 898 | goto out_err; |
d6d901c2 | 899 | } |
716c69fe | 900 | } |
70db7533 | 901 | |
2376c67a | 902 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 903 | ui__error("Failed to mmap with %d (%s)\n", |
c286c419 ACM |
904 | errno, strerror(errno)); |
905 | goto out_err; | |
906 | } | |
907 | ||
11859e82 | 908 | return 0; |
c286c419 ACM |
909 | |
910 | out_err: | |
11859e82 | 911 | return -1; |
716c69fe IM |
912 | } |
913 | ||
1758af10 | 914 | static int perf_top__setup_sample_type(struct perf_top *top) |
19d4ac3c | 915 | { |
1758af10 | 916 | if (!top->sort_has_symbols) { |
19d4ac3c | 917 | if (symbol_conf.use_callchain) { |
3780f488 | 918 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
919 | return -EINVAL; |
920 | } | |
2376c67a | 921 | } else if (callchain_param.mode != CHAIN_NONE) { |
19d4ac3c | 922 | if (callchain_register_param(&callchain_param) < 0) { |
3780f488 | 923 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
924 | return -EINVAL; |
925 | } | |
926 | } | |
927 | ||
928 | return 0; | |
929 | } | |
930 | ||
1758af10 | 931 | static int __cmd_top(struct perf_top *top) |
716c69fe | 932 | { |
2376c67a | 933 | struct perf_record_opts *opts = &top->record_opts; |
716c69fe | 934 | pthread_t thread; |
19d4ac3c | 935 | int ret; |
d8f66248 | 936 | /* |
b3165f41 ACM |
937 | * FIXME: perf_session__new should allow passing a O_MMAP, so that all this |
938 | * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. | |
d8f66248 | 939 | */ |
1758af10 ACM |
940 | top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL); |
941 | if (top->session == NULL) | |
b3165f41 | 942 | return -ENOMEM; |
07800601 | 943 | |
1758af10 | 944 | ret = perf_top__setup_sample_type(top); |
19d4ac3c ACM |
945 | if (ret) |
946 | goto out_delete; | |
947 | ||
2376c67a | 948 | if (perf_target__has_task(&opts->target)) |
1758af10 | 949 | perf_event__synthesize_thread_map(&top->tool, top->evlist->threads, |
743eb868 | 950 | perf_event__process, |
876650e6 | 951 | &top->session->machines.host); |
5b2bb75a | 952 | else |
1758af10 | 953 | perf_event__synthesize_threads(&top->tool, perf_event__process, |
876650e6 | 954 | &top->session->machines.host); |
11859e82 ACM |
955 | |
956 | ret = perf_top__start_counters(top); | |
957 | if (ret) | |
958 | goto out_delete; | |
959 | ||
1758af10 | 960 | top->session->evlist = top->evlist; |
7b56cce2 | 961 | perf_session__set_id_hdr_size(top->session); |
07800601 | 962 | |
2376c67a ACM |
963 | /* |
964 | * When perf is starting the traced process, all the events (apart from | |
965 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
966 | * prematurely enabling them. | |
967 | * | |
968 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
969 | * so leave the check here. | |
970 | */ | |
971 | if (!perf_target__none(&opts->target)) | |
972 | perf_evlist__enable(top->evlist); | |
973 | ||
2f01190a | 974 | /* Wait for a minimal set of events before starting the snapshot */ |
1758af10 | 975 | poll(top->evlist->pollfd, top->evlist->nr_fds, 100); |
2f01190a | 976 | |
1758af10 | 977 | perf_top__mmap_read(top); |
2f01190a | 978 | |
11859e82 | 979 | ret = -1; |
c0443df1 | 980 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 981 | display_thread), top)) { |
3780f488 | 982 | ui__error("Could not create display thread.\n"); |
11859e82 | 983 | goto out_delete; |
07800601 IM |
984 | } |
985 | ||
1758af10 | 986 | if (top->realtime_prio) { |
07800601 IM |
987 | struct sched_param param; |
988 | ||
1758af10 | 989 | param.sched_priority = top->realtime_prio; |
07800601 | 990 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 991 | ui__error("Could not set realtime priority.\n"); |
11859e82 | 992 | goto out_delete; |
07800601 IM |
993 | } |
994 | } | |
995 | ||
11859e82 | 996 | while (!done) { |
1758af10 | 997 | u64 hits = top->samples; |
07800601 | 998 | |
1758af10 | 999 | perf_top__mmap_read(top); |
07800601 | 1000 | |
1758af10 ACM |
1001 | if (hits == top->samples) |
1002 | ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); | |
07800601 IM |
1003 | } |
1004 | ||
11859e82 | 1005 | ret = 0; |
19d4ac3c | 1006 | out_delete: |
1758af10 ACM |
1007 | perf_session__delete(top->session); |
1008 | top->session = NULL; | |
19d4ac3c | 1009 | |
11859e82 | 1010 | return ret; |
19d4ac3c ACM |
1011 | } |
1012 | ||
1013 | static int | |
1758af10 | 1014 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1015 | { |
19d4ac3c ACM |
1016 | /* |
1017 | * --no-call-graph | |
1018 | */ | |
2376c67a | 1019 | if (unset) |
19d4ac3c | 1020 | return 0; |
19d4ac3c ACM |
1021 | |
1022 | symbol_conf.use_callchain = true; | |
1023 | ||
2376c67a | 1024 | return record_parse_callchain_opt(opt, arg, unset); |
07800601 | 1025 | } |
b456bae0 | 1026 | |
1d037ca1 | 1027 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1758af10 | 1028 | { |
16ad2ffb NK |
1029 | int status; |
1030 | char errbuf[BUFSIZ]; | |
1758af10 ACM |
1031 | struct perf_top top = { |
1032 | .count_filter = 5, | |
1033 | .delay_secs = 2, | |
2376c67a ACM |
1034 | .record_opts = { |
1035 | .mmap_pages = UINT_MAX, | |
1036 | .user_freq = UINT_MAX, | |
1037 | .user_interval = ULLONG_MAX, | |
1038 | .freq = 4000, /* 4 KHz */ | |
1039 | .target = { | |
1040 | .uses_mmap = true, | |
1041 | }, | |
d1cb9fce | 1042 | }, |
2376c67a | 1043 | .sym_pcnt_filter = 5, |
1758af10 | 1044 | }; |
2376c67a ACM |
1045 | struct perf_record_opts *opts = &top.record_opts; |
1046 | struct perf_target *target = &opts->target; | |
1758af10 | 1047 | const struct option options[] = { |
8c3e10eb | 1048 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1049 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1050 | parse_events_option), |
2376c67a ACM |
1051 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1052 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1053 | "profile events on existing process id"), |
2376c67a | 1054 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1055 | "profile events on existing thread id"), |
2376c67a | 1056 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1057 | "system-wide collection from all CPUs"), |
2376c67a | 1058 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1059 | "list of cpus to monitor"), |
b32d133a ACM |
1060 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1061 | "file", "vmlinux pathname"), | |
8c3e10eb | 1062 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1063 | "hide kernel symbols"), |
2376c67a ACM |
1064 | OPT_UINTEGER('m', "mmap-pages", &opts->mmap_pages, |
1065 | "number of mmap data pages"), | |
1758af10 | 1066 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1067 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1068 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1069 | "number of seconds to delay between refreshes"), |
1758af10 | 1070 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1071 | "dump the symbol table used for profiling"), |
8c3e10eb | 1072 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1073 | "only display functions with more events than this"), |
2376c67a | 1074 | OPT_BOOLEAN('g', "group", &opts->group, |
b456bae0 | 1075 | "put the counters into a counter group"), |
2376c67a ACM |
1076 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1077 | "child tasks do not inherit counters"), | |
1758af10 | 1078 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1079 | "symbol to annotate"), |
2376c67a ACM |
1080 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1081 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1082 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1083 | "display this many functions"), |
8c3e10eb | 1084 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1085 | "hide user symbols"), |
1758af10 ACM |
1086 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1087 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1088 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1089 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd ACM |
1090 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1091 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
1092 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, | |
1093 | "Show a column with the number of samples"), | |
2376c67a ACM |
1094 | OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts, |
1095 | "mode[,dump_size]", record_callchain_help, | |
1096 | &parse_callchain_opt, "fp"), | |
ab81f3fd ACM |
1097 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1098 | "Show a column with the sum of periods"), | |
1099 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1100 | "only consider symbols in these dsos"), | |
1101 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1102 | "only consider symbols in these comms"), | |
1103 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1104 | "only consider these symbols"), | |
64c6f0c7 ACM |
1105 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1106 | "Interleave source code with assembly code (default)"), | |
1107 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1108 | "Display raw encoding of assembly instructions (default)"), | |
1109 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", | |
1110 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1111 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
b456bae0 | 1112 | OPT_END() |
1758af10 | 1113 | }; |
be772842 ACM |
1114 | const char * const top_usage[] = { |
1115 | "perf top [<options>]", | |
1116 | NULL | |
1117 | }; | |
b456bae0 | 1118 | |
8c3e10eb ACM |
1119 | top.evlist = perf_evlist__new(NULL, NULL); |
1120 | if (top.evlist == NULL) | |
361c99a6 ACM |
1121 | return -ENOMEM; |
1122 | ||
ab81f3fd | 1123 | symbol_conf.exclude_other = false; |
b456bae0 | 1124 | |
b456bae0 IM |
1125 | argc = parse_options(argc, argv, options, top_usage, 0); |
1126 | if (argc) | |
1127 | usage_with_options(top_usage, options); | |
1128 | ||
ab81f3fd ACM |
1129 | if (sort_order == default_sort_order) |
1130 | sort_order = "dso,symbol"; | |
1131 | ||
55309985 NK |
1132 | if (setup_sorting() < 0) |
1133 | usage_with_options(top_usage, options); | |
ab81f3fd | 1134 | |
1758af10 | 1135 | if (top.use_stdio) |
c0443df1 | 1136 | use_browser = 0; |
1758af10 | 1137 | else if (top.use_tui) |
c0443df1 ACM |
1138 | use_browser = 1; |
1139 | ||
1140 | setup_browser(false); | |
1141 | ||
2376c67a | 1142 | status = perf_target__validate(target); |
16ad2ffb | 1143 | if (status) { |
2376c67a | 1144 | perf_target__strerror(target, status, errbuf, BUFSIZ); |
16ad2ffb NK |
1145 | ui__warning("%s", errbuf); |
1146 | } | |
1147 | ||
2376c67a | 1148 | status = perf_target__parse_uid(target); |
16ad2ffb NK |
1149 | if (status) { |
1150 | int saved_errno = errno; | |
4bd0f2d2 | 1151 | |
2376c67a | 1152 | perf_target__strerror(target, status, errbuf, BUFSIZ); |
3780f488 | 1153 | ui__error("%s", errbuf); |
16ad2ffb NK |
1154 | |
1155 | status = -saved_errno; | |
0d37aa34 | 1156 | goto out_delete_evlist; |
16ad2ffb | 1157 | } |
0d37aa34 | 1158 | |
2376c67a ACM |
1159 | if (perf_target__none(target)) |
1160 | target->system_wide = true; | |
10b47d54 | 1161 | |
2376c67a | 1162 | if (perf_evlist__create_maps(top.evlist, target) < 0) |
7e2ed097 ACM |
1163 | usage_with_options(top_usage, options); |
1164 | ||
8c3e10eb ACM |
1165 | if (!top.evlist->nr_entries && |
1166 | perf_evlist__add_default(top.evlist) < 0) { | |
3780f488 | 1167 | ui__error("Not enough memory for event selector list\n"); |
0de233b9 | 1168 | goto out_delete_maps; |
69aad6f1 | 1169 | } |
5a8e5a30 | 1170 | |
d04b35f8 ACM |
1171 | symbol_conf.nr_events = top.evlist->nr_entries; |
1172 | ||
8c3e10eb ACM |
1173 | if (top.delay_secs < 1) |
1174 | top.delay_secs = 1; | |
2f335a02 | 1175 | |
2376c67a ACM |
1176 | if (opts->user_interval != ULLONG_MAX) |
1177 | opts->default_interval = opts->user_interval; | |
1178 | if (opts->user_freq != UINT_MAX) | |
1179 | opts->freq = opts->user_freq; | |
1180 | ||
7e4ff9e3 MG |
1181 | /* |
1182 | * User specified count overrides default frequency. | |
1183 | */ | |
2376c67a ACM |
1184 | if (opts->default_interval) |
1185 | opts->freq = 0; | |
1186 | else if (opts->freq) { | |
1187 | opts->default_interval = opts->freq; | |
7e4ff9e3 | 1188 | } else { |
3780f488 | 1189 | ui__error("frequency and count are zero, aborting\n"); |
2376c67a | 1190 | status = -EINVAL; |
0de233b9 | 1191 | goto out_delete_maps; |
69aad6f1 ACM |
1192 | } |
1193 | ||
0c21f736 | 1194 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1195 | |
ab81f3fd | 1196 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1197 | |
1198 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1199 | if (symbol__init() < 0) | |
1200 | return -1; | |
1201 | ||
ab81f3fd ACM |
1202 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); |
1203 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); | |
1204 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); | |
1205 | ||
19d4ac3c ACM |
1206 | /* |
1207 | * Avoid annotation data structures overhead when symbols aren't on the | |
1208 | * sort list. | |
1209 | */ | |
1758af10 | 1210 | top.sort_has_symbols = sort_sym.list.next != NULL; |
19d4ac3c | 1211 | |
1758af10 | 1212 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1213 | if (top.print_entries == 0) { |
1758af10 ACM |
1214 | struct sigaction act = { |
1215 | .sa_sigaction = perf_top__sig_winch, | |
1216 | .sa_flags = SA_SIGINFO, | |
1217 | }; | |
1218 | perf_top__update_print_entries(&top); | |
1219 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1220 | } |
1221 | ||
1758af10 | 1222 | status = __cmd_top(&top); |
806fb630 | 1223 | |
0de233b9 ACM |
1224 | out_delete_maps: |
1225 | perf_evlist__delete_maps(top.evlist); | |
0d37aa34 | 1226 | out_delete_evlist: |
8c3e10eb | 1227 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1228 | |
1229 | return status; | |
b456bae0 | 1230 | } |