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 | |
db8fd07a | 234 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 ACM |
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 | ||
05484298 AK |
254 | he = __hists__add_entry(&evsel->hists, al, NULL, sample->period, |
255 | sample->weight); | |
ab81f3fd ACM |
256 | if (he == NULL) |
257 | return NULL; | |
258 | ||
ab81f3fd ACM |
259 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
260 | return he; | |
de04687f | 261 | } |
07800601 | 262 | |
1758af10 | 263 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 264 | { |
8c3e10eb ACM |
265 | char bf[160]; |
266 | int printed = 0; | |
1758af10 | 267 | const int win_width = top->winsize.ws_col - 1; |
d94b9430 | 268 | |
0f5486b5 | 269 | puts(CONSOLE_CLEAR); |
07800601 | 270 | |
1758af10 | 271 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 272 | printf("%s\n", bf); |
07800601 | 273 | |
1758af10 | 274 | perf_top__reset_sample_counters(top); |
07800601 | 275 | |
1a105f74 | 276 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 277 | |
1758af10 ACM |
278 | if (top->sym_evsel->hists.stats.nr_lost_warned != |
279 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { | |
280 | top->sym_evsel->hists.stats.nr_lost_warned = | |
281 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
282 | color_fprintf(stdout, PERF_COLOR_RED, |
283 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
1758af10 | 284 | top->sym_evsel->hists.stats.nr_lost_warned); |
ab81f3fd | 285 | ++printed; |
93fc64f1 ACM |
286 | } |
287 | ||
1758af10 ACM |
288 | if (top->sym_filter_entry) { |
289 | perf_top__show_details(top); | |
923c42c1 MG |
290 | return; |
291 | } | |
292 | ||
1758af10 ACM |
293 | hists__collapse_resort_threaded(&top->sym_evsel->hists); |
294 | hists__output_resort_threaded(&top->sym_evsel->hists); | |
295 | hists__decay_entries_threaded(&top->sym_evsel->hists, | |
296 | top->hide_user_symbols, | |
297 | top->hide_kernel_symbols); | |
298 | hists__output_recalc_col_len(&top->sym_evsel->hists, | |
299 | top->winsize.ws_row - 3); | |
7cc017ed | 300 | putchar('\n'); |
41724e4c | 301 | hists__fprintf(&top->sym_evsel->hists, false, |
1758af10 | 302 | top->winsize.ws_row - 4 - printed, win_width, stdout); |
07800601 IM |
303 | } |
304 | ||
923c42c1 MG |
305 | static void prompt_integer(int *target, const char *msg) |
306 | { | |
307 | char *buf = malloc(0), *p; | |
308 | size_t dummy = 0; | |
309 | int tmp; | |
310 | ||
311 | fprintf(stdout, "\n%s: ", msg); | |
312 | if (getline(&buf, &dummy, stdin) < 0) | |
313 | return; | |
314 | ||
315 | p = strchr(buf, '\n'); | |
316 | if (p) | |
317 | *p = 0; | |
318 | ||
319 | p = buf; | |
320 | while(*p) { | |
321 | if (!isdigit(*p)) | |
322 | goto out_free; | |
323 | p++; | |
324 | } | |
325 | tmp = strtoul(buf, NULL, 10); | |
326 | *target = tmp; | |
327 | out_free: | |
328 | free(buf); | |
329 | } | |
330 | ||
331 | static void prompt_percent(int *target, const char *msg) | |
332 | { | |
333 | int tmp = 0; | |
334 | ||
335 | prompt_integer(&tmp, msg); | |
336 | if (tmp >= 0 && tmp <= 100) | |
337 | *target = tmp; | |
338 | } | |
339 | ||
1758af10 | 340 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
341 | { |
342 | char *buf = malloc(0), *p; | |
1758af10 | 343 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
ab81f3fd | 344 | struct rb_node *next; |
923c42c1 MG |
345 | size_t dummy = 0; |
346 | ||
347 | /* zero counters of active symbol */ | |
348 | if (syme) { | |
923c42c1 | 349 | __zero_source_counters(syme); |
1758af10 | 350 | top->sym_filter_entry = NULL; |
923c42c1 MG |
351 | } |
352 | ||
353 | fprintf(stdout, "\n%s: ", msg); | |
354 | if (getline(&buf, &dummy, stdin) < 0) | |
355 | goto out_free; | |
356 | ||
357 | p = strchr(buf, '\n'); | |
358 | if (p) | |
359 | *p = 0; | |
360 | ||
1758af10 | 361 | next = rb_first(&top->sym_evsel->hists.entries); |
ab81f3fd ACM |
362 | while (next) { |
363 | n = rb_entry(next, struct hist_entry, rb_node); | |
364 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
365 | found = n; | |
923c42c1 MG |
366 | break; |
367 | } | |
ab81f3fd | 368 | next = rb_next(&n->rb_node); |
923c42c1 MG |
369 | } |
370 | ||
371 | if (!found) { | |
66aeb6d5 | 372 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 373 | sleep(1); |
923c42c1 | 374 | } else |
1758af10 | 375 | perf_top__parse_source(top, found); |
923c42c1 MG |
376 | |
377 | out_free: | |
378 | free(buf); | |
379 | } | |
380 | ||
1758af10 | 381 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 382 | { |
091bd2e9 MG |
383 | char *name = NULL; |
384 | ||
1758af10 ACM |
385 | if (top->sym_filter_entry) { |
386 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
387 | name = sym->name; |
388 | } | |
389 | ||
390 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
391 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
392 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 393 | |
1758af10 | 394 | if (top->evlist->nr_entries > 1) |
7289f83c | 395 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 396 | |
1758af10 | 397 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 398 | |
1758af10 | 399 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
400 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
401 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 402 | |
8ffcda17 | 403 | fprintf(stdout, |
1a72cfa6 | 404 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 405 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
406 | fprintf(stdout, |
407 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
408 | top->hide_user_symbols ? "yes" : "no"); |
409 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
410 | fprintf(stdout, "\t[qQ] quit.\n"); |
411 | } | |
412 | ||
1758af10 | 413 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
414 | { |
415 | switch (c) { | |
416 | case 'd': | |
417 | case 'e': | |
418 | case 'f': | |
419 | case 'z': | |
420 | case 'q': | |
421 | case 'Q': | |
8ffcda17 ACM |
422 | case 'K': |
423 | case 'U': | |
6cff0e8d KS |
424 | case 'F': |
425 | case 's': | |
426 | case 'S': | |
091bd2e9 MG |
427 | return 1; |
428 | case 'E': | |
1758af10 | 429 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
430 | default: |
431 | break; | |
091bd2e9 MG |
432 | } |
433 | ||
434 | return 0; | |
923c42c1 MG |
435 | } |
436 | ||
11859e82 | 437 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 438 | { |
11859e82 ACM |
439 | bool ret = true; |
440 | ||
1758af10 | 441 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 MG |
442 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
443 | struct termios tc, save; | |
444 | ||
1758af10 | 445 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
446 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
447 | fflush(stdout); | |
448 | ||
449 | tcgetattr(0, &save); | |
450 | tc = save; | |
451 | tc.c_lflag &= ~(ICANON | ECHO); | |
452 | tc.c_cc[VMIN] = 0; | |
453 | tc.c_cc[VTIME] = 0; | |
454 | tcsetattr(0, TCSANOW, &tc); | |
455 | ||
456 | poll(&stdin_poll, 1, -1); | |
457 | c = getc(stdin); | |
458 | ||
459 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 460 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 461 | return ret; |
091bd2e9 MG |
462 | } |
463 | ||
923c42c1 MG |
464 | switch (c) { |
465 | case 'd': | |
1758af10 ACM |
466 | prompt_integer(&top->delay_secs, "Enter display delay"); |
467 | if (top->delay_secs < 1) | |
468 | top->delay_secs = 1; | |
923c42c1 MG |
469 | break; |
470 | case 'e': | |
1758af10 ACM |
471 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
472 | if (top->print_entries == 0) { | |
473 | struct sigaction act = { | |
474 | .sa_sigaction = perf_top__sig_winch, | |
475 | .sa_flags = SA_SIGINFO, | |
476 | }; | |
477 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
478 | sigaction(SIGWINCH, &act, NULL); | |
509605db SE |
479 | } else { |
480 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
3b6ed988 | 481 | signal(SIGWINCH, SIG_DFL); |
509605db | 482 | } |
923c42c1 MG |
483 | break; |
484 | case 'E': | |
1758af10 | 485 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
486 | /* Select 0 as the default event: */ |
487 | int counter = 0; | |
488 | ||
923c42c1 | 489 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 490 | |
1758af10 | 491 | list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) |
7289f83c | 492 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 493 | |
ec52d976 | 494 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 495 | |
1758af10 | 496 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 497 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 498 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 499 | sleep(1); |
69aad6f1 | 500 | break; |
923c42c1 | 501 | } |
1758af10 ACM |
502 | list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) |
503 | if (top->sym_evsel->idx == counter) | |
69aad6f1 | 504 | break; |
ec52d976 | 505 | } else |
0c21f736 | 506 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
507 | break; |
508 | case 'f': | |
1758af10 | 509 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
510 | break; |
511 | case 'F': | |
1758af10 ACM |
512 | prompt_percent(&top->sym_pcnt_filter, |
513 | "Enter details display event filter (percent)"); | |
923c42c1 | 514 | break; |
8ffcda17 | 515 | case 'K': |
1758af10 | 516 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 517 | break; |
923c42c1 MG |
518 | case 'q': |
519 | case 'Q': | |
520 | printf("exiting.\n"); | |
1758af10 ACM |
521 | if (top->dump_symtab) |
522 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
523 | ret = false; |
524 | break; | |
923c42c1 | 525 | case 's': |
1758af10 | 526 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
527 | break; |
528 | case 'S': | |
1758af10 | 529 | if (!top->sym_filter_entry) |
923c42c1 MG |
530 | break; |
531 | else { | |
1758af10 | 532 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 533 | |
1758af10 | 534 | top->sym_filter_entry = NULL; |
923c42c1 | 535 | __zero_source_counters(syme); |
923c42c1 MG |
536 | } |
537 | break; | |
8ffcda17 | 538 | case 'U': |
1758af10 | 539 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 540 | break; |
923c42c1 | 541 | case 'z': |
1758af10 | 542 | top->zero = !top->zero; |
923c42c1 | 543 | break; |
83a0944f IM |
544 | default: |
545 | break; | |
923c42c1 | 546 | } |
11859e82 ACM |
547 | |
548 | return ret; | |
923c42c1 MG |
549 | } |
550 | ||
ab81f3fd ACM |
551 | static void perf_top__sort_new_samples(void *arg) |
552 | { | |
553 | struct perf_top *t = arg; | |
554 | perf_top__reset_sample_counters(t); | |
555 | ||
556 | if (t->evlist->selected != NULL) | |
557 | t->sym_evsel = t->evlist->selected; | |
558 | ||
559 | hists__collapse_resort_threaded(&t->sym_evsel->hists); | |
560 | hists__output_resort_threaded(&t->sym_evsel->hists); | |
b079d4e9 | 561 | hists__decay_entries_threaded(&t->sym_evsel->hists, |
1758af10 ACM |
562 | t->hide_user_symbols, |
563 | t->hide_kernel_symbols); | |
ab81f3fd ACM |
564 | } |
565 | ||
1758af10 | 566 | static void *display_thread_tui(void *arg) |
c0443df1 | 567 | { |
0d37aa34 | 568 | struct perf_evsel *pos; |
1758af10 | 569 | struct perf_top *top = arg; |
ab81f3fd | 570 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
571 | struct hist_browser_timer hbt = { |
572 | .timer = perf_top__sort_new_samples, | |
573 | .arg = top, | |
574 | .refresh = top->delay_secs, | |
575 | }; | |
ab81f3fd | 576 | |
1758af10 | 577 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
578 | |
579 | /* | |
580 | * Initialize the uid_filter_str, in the future the TUI will allow | |
581 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
582 | * via --uid. | |
583 | */ | |
584 | list_for_each_entry(pos, &top->evlist->entries, node) | |
2376c67a | 585 | pos->hists.uid_filter_str = top->record_opts.target.uid_str; |
0d37aa34 | 586 | |
68d80758 NK |
587 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
588 | &top->session->header.env); | |
ab81f3fd | 589 | |
11859e82 | 590 | done = 1; |
c0443df1 ACM |
591 | return NULL; |
592 | } | |
593 | ||
1758af10 | 594 | static void *display_thread(void *arg) |
07800601 | 595 | { |
0f5486b5 | 596 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 | 597 | struct termios tc, save; |
1758af10 | 598 | struct perf_top *top = arg; |
923c42c1 MG |
599 | int delay_msecs, c; |
600 | ||
601 | tcgetattr(0, &save); | |
602 | tc = save; | |
603 | tc.c_lflag &= ~(ICANON | ECHO); | |
604 | tc.c_cc[VMIN] = 0; | |
605 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 606 | |
3af6e338 | 607 | pthread__unblock_sigwinch(); |
923c42c1 | 608 | repeat: |
1758af10 | 609 | delay_msecs = top->delay_secs * 1000; |
923c42c1 MG |
610 | tcsetattr(0, TCSANOW, &tc); |
611 | /* trash return*/ | |
612 | getc(stdin); | |
07800601 | 613 | |
11859e82 | 614 | while (!done) { |
1758af10 | 615 | perf_top__print_sym_table(top); |
3af6e338 ACM |
616 | /* |
617 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
618 | * refresh screen in both cases. | |
619 | */ | |
620 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
621 | case 0: | |
622 | continue; | |
623 | case -1: | |
624 | if (errno == EINTR) | |
625 | continue; | |
626 | /* Fall trhu */ | |
627 | default: | |
11859e82 ACM |
628 | c = getc(stdin); |
629 | tcsetattr(0, TCSAFLUSH, &save); | |
630 | ||
631 | if (perf_top__handle_keypress(top, c)) | |
632 | goto repeat; | |
633 | done = 1; | |
3af6e338 ACM |
634 | } |
635 | } | |
07800601 IM |
636 | |
637 | return NULL; | |
638 | } | |
639 | ||
2ab52083 | 640 | /* Tag samples to be skipped. */ |
f37a291c | 641 | static const char *skip_symbols[] = { |
4bea8b5c | 642 | "intel_idle", |
2ab52083 | 643 | "default_idle", |
b0e8572f | 644 | "native_safe_halt", |
2ab52083 AB |
645 | "cpu_idle", |
646 | "enter_idle", | |
647 | "exit_idle", | |
648 | "mwait_idle", | |
59b90056 | 649 | "mwait_idle_with_hints", |
8357275b | 650 | "poll_idle", |
3a3393ef AB |
651 | "ppc64_runlatch_off", |
652 | "pseries_dedicated_idle_sleep", | |
2ab52083 AB |
653 | NULL |
654 | }; | |
655 | ||
1d037ca1 | 656 | static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) |
07800601 | 657 | { |
de04687f | 658 | const char *name = sym->name; |
2ab52083 | 659 | int i; |
de04687f | 660 | |
3a3393ef AB |
661 | /* |
662 | * ppc64 uses function descriptors and appends a '.' to the | |
663 | * start of every instruction address. Remove it. | |
664 | */ | |
665 | if (name[0] == '.') | |
666 | name++; | |
667 | ||
de04687f ACM |
668 | if (!strcmp(name, "_text") || |
669 | !strcmp(name, "_etext") || | |
670 | !strcmp(name, "_sinittext") || | |
671 | !strncmp("init_module", name, 11) || | |
672 | !strncmp("cleanup_module", name, 14) || | |
673 | strstr(name, "_text_start") || | |
674 | strstr(name, "_text_end")) | |
07800601 | 675 | return 1; |
07800601 | 676 | |
2ab52083 AB |
677 | for (i = 0; skip_symbols[i]; i++) { |
678 | if (!strcmp(skip_symbols[i], name)) { | |
171b3be9 | 679 | sym->ignore = true; |
2ab52083 AB |
680 | break; |
681 | } | |
682 | } | |
07800601 | 683 | |
07800601 IM |
684 | return 0; |
685 | } | |
686 | ||
1758af10 ACM |
687 | static void perf_event__process_sample(struct perf_tool *tool, |
688 | const union perf_event *event, | |
7b27509f | 689 | struct perf_evsel *evsel, |
8115d60c | 690 | struct perf_sample *sample, |
743eb868 | 691 | struct machine *machine) |
07800601 | 692 | { |
1758af10 | 693 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
19d4ac3c | 694 | struct symbol *parent = NULL; |
8115d60c | 695 | u64 ip = event->ip.ip; |
1ed091c4 | 696 | struct addr_location al; |
19d4ac3c | 697 | int err; |
5b2bb75a | 698 | |
23346f21 | 699 | if (!machine && perf_guest) { |
6b118e92 DA |
700 | static struct intlist *seen; |
701 | ||
702 | if (!seen) | |
ffe0fb76 | 703 | seen = intlist__new(NULL); |
6b118e92 DA |
704 | |
705 | if (!intlist__has_entry(seen, event->ip.pid)) { | |
706 | pr_err("Can't find guest [%d]'s kernel information\n", | |
707 | event->ip.pid); | |
708 | intlist__add(seen, event->ip.pid); | |
709 | } | |
a1645ce1 ZY |
710 | return; |
711 | } | |
712 | ||
0c095715 | 713 | if (!machine) { |
11859e82 | 714 | pr_err("%u unprocessable samples recorded.\r", |
28a6b6aa | 715 | top->session->stats.nr_unprocessable_samples++); |
0c095715 JR |
716 | return; |
717 | } | |
718 | ||
8115d60c | 719 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 720 | top->exact_samples++; |
1676b8a0 | 721 | |
743eb868 | 722 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
8115d60c | 723 | symbol_filter) < 0 || |
72b8fa17 | 724 | al.filtered) |
1ed091c4 | 725 | return; |
07800601 | 726 | |
1758af10 | 727 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
728 | symbol_conf.kptr_restrict && |
729 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
730 | ui__warning( | |
731 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
732 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
733 | "Kernel%s samples will not be resolved.\n", | |
734 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
735 | " modules" : ""); | |
736 | if (use_browser <= 0) | |
737 | sleep(5); | |
1758af10 | 738 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
739 | } |
740 | ||
72b8fa17 | 741 | if (al.sym == NULL) { |
e4a338d0 | 742 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
743 | /* |
744 | * As we do lazy loading of symtabs we only will know if the | |
745 | * specified vmlinux file is invalid when we actually have a | |
746 | * hit in kernel space and then try to load it. So if we get | |
747 | * here and there are _no_ symbols in the DSO backing the | |
748 | * kernel map, bail out. | |
749 | * | |
750 | * We may never get here, for instance, if we use -K/ | |
751 | * --hide-kernel-symbols, even if the user specifies an | |
752 | * invalid --vmlinux ;-) | |
753 | */ | |
1758af10 | 754 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 755 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 756 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
757 | if (symbol_conf.vmlinux_name) { |
758 | ui__warning("The %s file can't be used.\n%s", | |
759 | symbol_conf.vmlinux_name, msg); | |
760 | } else { | |
761 | ui__warning("A vmlinux file was not found.\n%s", | |
762 | msg); | |
763 | } | |
764 | ||
765 | if (use_browser <= 0) | |
766 | sleep(5); | |
1758af10 | 767 | top->vmlinux_warned = true; |
72b8fa17 | 768 | } |
6cff0e8d KS |
769 | } |
770 | ||
ab81f3fd | 771 | if (al.sym == NULL || !al.sym->ignore) { |
ab81f3fd | 772 | struct hist_entry *he; |
70db7533 | 773 | |
19d4ac3c ACM |
774 | if ((sort__has_parent || symbol_conf.use_callchain) && |
775 | sample->callchain) { | |
71ad0f5e JO |
776 | err = machine__resolve_callchain(machine, evsel, |
777 | al.thread, sample, | |
778 | &parent); | |
779 | ||
19d4ac3c ACM |
780 | if (err) |
781 | return; | |
782 | } | |
783 | ||
743eb868 | 784 | he = perf_evsel__add_hist_entry(evsel, &al, sample); |
ab81f3fd ACM |
785 | if (he == NULL) { |
786 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
787 | return; | |
5807806a | 788 | } |
ab81f3fd | 789 | |
19d4ac3c | 790 | if (symbol_conf.use_callchain) { |
47260645 | 791 | err = callchain_append(he->callchain, &callchain_cursor, |
19d4ac3c ACM |
792 | sample->period); |
793 | if (err) | |
794 | return; | |
795 | } | |
796 | ||
8f0f684b | 797 | if (sort__has_sym) |
1758af10 | 798 | perf_top__record_precise_ip(top, he, evsel->idx, ip); |
5b2bb75a | 799 | } |
ab81f3fd ACM |
800 | |
801 | return; | |
07800601 IM |
802 | } |
803 | ||
1758af10 | 804 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 805 | { |
8d50e5b4 | 806 | struct perf_sample sample; |
7b27509f | 807 | struct perf_evsel *evsel; |
1758af10 | 808 | struct perf_session *session = top->session; |
8115d60c | 809 | union perf_event *event; |
743eb868 ACM |
810 | struct machine *machine; |
811 | u8 origin; | |
5538beca | 812 | int ret; |
07800601 | 813 | |
1758af10 | 814 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 815 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
816 | if (ret) { |
817 | pr_err("Can't parse sample, err = %d\n", ret); | |
818 | continue; | |
819 | } | |
04391deb | 820 | |
1758af10 | 821 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
822 | assert(evsel != NULL); |
823 | ||
743eb868 ACM |
824 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
825 | ||
5b2bb75a | 826 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 827 | ++top->samples; |
743eb868 ACM |
828 | |
829 | switch (origin) { | |
830 | case PERF_RECORD_MISC_USER: | |
1758af10 ACM |
831 | ++top->us_samples; |
832 | if (top->hide_user_symbols) | |
743eb868 | 833 | continue; |
34ba5122 | 834 | machine = &session->machines.host; |
743eb868 ACM |
835 | break; |
836 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
837 | ++top->kernel_samples; |
838 | if (top->hide_kernel_symbols) | |
743eb868 | 839 | continue; |
34ba5122 | 840 | machine = &session->machines.host; |
743eb868 ACM |
841 | break; |
842 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 ACM |
843 | ++top->guest_kernel_samples; |
844 | machine = perf_session__find_machine(session, event->ip.pid); | |
743eb868 ACM |
845 | break; |
846 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 847 | ++top->guest_us_samples; |
743eb868 ACM |
848 | /* |
849 | * TODO: we don't process guest user from host side | |
850 | * except simple counting. | |
851 | */ | |
852 | /* Fall thru */ | |
853 | default: | |
854 | continue; | |
855 | } | |
856 | ||
857 | ||
1758af10 ACM |
858 | if (event->header.type == PERF_RECORD_SAMPLE) { |
859 | perf_event__process_sample(&top->tool, event, evsel, | |
860 | &sample, machine); | |
861 | } else if (event->header.type < PERF_RECORD_MAX) { | |
7b27509f | 862 | hists__inc_nr_events(&evsel->hists, event->header.type); |
b0a7d1a0 | 863 | machine__process_event(machine, event); |
7b27509f | 864 | } else |
28a6b6aa | 865 | ++session->stats.nr_unknown_events; |
07800601 | 866 | } |
07800601 IM |
867 | } |
868 | ||
1758af10 | 869 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 870 | { |
70db7533 ACM |
871 | int i; |
872 | ||
1758af10 ACM |
873 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
874 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
875 | } |
876 | ||
11859e82 | 877 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 878 | { |
56e52e85 | 879 | char msg[512]; |
6a4bb04c | 880 | struct perf_evsel *counter; |
1758af10 | 881 | struct perf_evlist *evlist = top->evlist; |
2376c67a | 882 | struct perf_record_opts *opts = &top->record_opts; |
727ab04e | 883 | |
2376c67a | 884 | perf_evlist__config(evlist, opts); |
7e4ff9e3 | 885 | |
72cb7013 | 886 | list_for_each_entry(counter, &evlist->entries, node) { |
72cb7013 | 887 | try_again: |
1758af10 | 888 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 889 | top->evlist->threads) < 0) { |
56e52e85 | 890 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
d6d901c2 | 891 | if (verbose) |
c0a54341 | 892 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
893 | goto try_again; |
894 | } | |
c286c419 | 895 | |
56e52e85 ACM |
896 | perf_evsel__open_strerror(counter, &opts->target, |
897 | errno, msg, sizeof(msg)); | |
898 | ui__error("%s\n", msg); | |
c286c419 | 899 | goto out_err; |
d6d901c2 | 900 | } |
716c69fe | 901 | } |
70db7533 | 902 | |
2376c67a | 903 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 904 | ui__error("Failed to mmap with %d (%s)\n", |
c286c419 ACM |
905 | errno, strerror(errno)); |
906 | goto out_err; | |
907 | } | |
908 | ||
11859e82 | 909 | return 0; |
c286c419 ACM |
910 | |
911 | out_err: | |
11859e82 | 912 | return -1; |
716c69fe IM |
913 | } |
914 | ||
8f0f684b | 915 | static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) |
19d4ac3c | 916 | { |
8f0f684b | 917 | if (!sort__has_sym) { |
19d4ac3c | 918 | if (symbol_conf.use_callchain) { |
3780f488 | 919 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
920 | return -EINVAL; |
921 | } | |
2376c67a | 922 | } else if (callchain_param.mode != CHAIN_NONE) { |
19d4ac3c | 923 | if (callchain_register_param(&callchain_param) < 0) { |
3780f488 | 924 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
925 | return -EINVAL; |
926 | } | |
927 | } | |
928 | ||
929 | return 0; | |
930 | } | |
931 | ||
1758af10 | 932 | static int __cmd_top(struct perf_top *top) |
716c69fe | 933 | { |
2376c67a | 934 | struct perf_record_opts *opts = &top->record_opts; |
716c69fe | 935 | pthread_t thread; |
19d4ac3c | 936 | int ret; |
d8f66248 | 937 | /* |
b3165f41 ACM |
938 | * FIXME: perf_session__new should allow passing a O_MMAP, so that all this |
939 | * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. | |
d8f66248 | 940 | */ |
1758af10 ACM |
941 | top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL); |
942 | if (top->session == NULL) | |
b3165f41 | 943 | return -ENOMEM; |
07800601 | 944 | |
1758af10 | 945 | ret = perf_top__setup_sample_type(top); |
19d4ac3c ACM |
946 | if (ret) |
947 | goto out_delete; | |
948 | ||
2376c67a | 949 | if (perf_target__has_task(&opts->target)) |
1758af10 | 950 | perf_event__synthesize_thread_map(&top->tool, top->evlist->threads, |
743eb868 | 951 | perf_event__process, |
876650e6 | 952 | &top->session->machines.host); |
5b2bb75a | 953 | else |
1758af10 | 954 | perf_event__synthesize_threads(&top->tool, perf_event__process, |
876650e6 | 955 | &top->session->machines.host); |
11859e82 ACM |
956 | |
957 | ret = perf_top__start_counters(top); | |
958 | if (ret) | |
959 | goto out_delete; | |
960 | ||
1758af10 | 961 | top->session->evlist = top->evlist; |
7b56cce2 | 962 | perf_session__set_id_hdr_size(top->session); |
07800601 | 963 | |
2376c67a ACM |
964 | /* |
965 | * When perf is starting the traced process, all the events (apart from | |
966 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
967 | * prematurely enabling them. | |
968 | * | |
969 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
970 | * so leave the check here. | |
971 | */ | |
972 | if (!perf_target__none(&opts->target)) | |
973 | perf_evlist__enable(top->evlist); | |
974 | ||
2f01190a | 975 | /* Wait for a minimal set of events before starting the snapshot */ |
1758af10 | 976 | poll(top->evlist->pollfd, top->evlist->nr_fds, 100); |
2f01190a | 977 | |
1758af10 | 978 | perf_top__mmap_read(top); |
2f01190a | 979 | |
11859e82 | 980 | ret = -1; |
c0443df1 | 981 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 982 | display_thread), top)) { |
3780f488 | 983 | ui__error("Could not create display thread.\n"); |
11859e82 | 984 | goto out_delete; |
07800601 IM |
985 | } |
986 | ||
1758af10 | 987 | if (top->realtime_prio) { |
07800601 IM |
988 | struct sched_param param; |
989 | ||
1758af10 | 990 | param.sched_priority = top->realtime_prio; |
07800601 | 991 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 992 | ui__error("Could not set realtime priority.\n"); |
11859e82 | 993 | goto out_delete; |
07800601 IM |
994 | } |
995 | } | |
996 | ||
11859e82 | 997 | while (!done) { |
1758af10 | 998 | u64 hits = top->samples; |
07800601 | 999 | |
1758af10 | 1000 | perf_top__mmap_read(top); |
07800601 | 1001 | |
1758af10 ACM |
1002 | if (hits == top->samples) |
1003 | ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); | |
07800601 IM |
1004 | } |
1005 | ||
11859e82 | 1006 | ret = 0; |
19d4ac3c | 1007 | out_delete: |
1758af10 ACM |
1008 | perf_session__delete(top->session); |
1009 | top->session = NULL; | |
19d4ac3c | 1010 | |
11859e82 | 1011 | return ret; |
19d4ac3c ACM |
1012 | } |
1013 | ||
1014 | static int | |
1758af10 | 1015 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1016 | { |
19d4ac3c ACM |
1017 | /* |
1018 | * --no-call-graph | |
1019 | */ | |
2376c67a | 1020 | if (unset) |
19d4ac3c | 1021 | return 0; |
19d4ac3c ACM |
1022 | |
1023 | symbol_conf.use_callchain = true; | |
1024 | ||
2376c67a | 1025 | return record_parse_callchain_opt(opt, arg, unset); |
07800601 | 1026 | } |
b456bae0 | 1027 | |
1d037ca1 | 1028 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1758af10 | 1029 | { |
16ad2ffb NK |
1030 | int status; |
1031 | char errbuf[BUFSIZ]; | |
1758af10 ACM |
1032 | struct perf_top top = { |
1033 | .count_filter = 5, | |
1034 | .delay_secs = 2, | |
2376c67a ACM |
1035 | .record_opts = { |
1036 | .mmap_pages = UINT_MAX, | |
1037 | .user_freq = UINT_MAX, | |
1038 | .user_interval = ULLONG_MAX, | |
1039 | .freq = 4000, /* 4 KHz */ | |
1040 | .target = { | |
1041 | .uses_mmap = true, | |
1042 | }, | |
d1cb9fce | 1043 | }, |
2376c67a | 1044 | .sym_pcnt_filter = 5, |
1758af10 | 1045 | }; |
2376c67a ACM |
1046 | struct perf_record_opts *opts = &top.record_opts; |
1047 | struct perf_target *target = &opts->target; | |
1758af10 | 1048 | const struct option options[] = { |
8c3e10eb | 1049 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1050 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1051 | parse_events_option), |
2376c67a ACM |
1052 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1053 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1054 | "profile events on existing process id"), |
2376c67a | 1055 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1056 | "profile events on existing thread id"), |
2376c67a | 1057 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1058 | "system-wide collection from all CPUs"), |
2376c67a | 1059 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1060 | "list of cpus to monitor"), |
b32d133a ACM |
1061 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1062 | "file", "vmlinux pathname"), | |
8c3e10eb | 1063 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1064 | "hide kernel symbols"), |
2376c67a ACM |
1065 | OPT_UINTEGER('m', "mmap-pages", &opts->mmap_pages, |
1066 | "number of mmap data pages"), | |
1758af10 | 1067 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1068 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1069 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1070 | "number of seconds to delay between refreshes"), |
1758af10 | 1071 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1072 | "dump the symbol table used for profiling"), |
8c3e10eb | 1073 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1074 | "only display functions with more events than this"), |
2376c67a | 1075 | OPT_BOOLEAN('g', "group", &opts->group, |
b456bae0 | 1076 | "put the counters into a counter group"), |
2376c67a ACM |
1077 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1078 | "child tasks do not inherit counters"), | |
1758af10 | 1079 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1080 | "symbol to annotate"), |
2376c67a ACM |
1081 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1082 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1083 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1084 | "display this many functions"), |
8c3e10eb | 1085 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1086 | "hide user symbols"), |
1758af10 ACM |
1087 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1088 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1089 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1090 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1091 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
05484298 | 1092 | "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight"), |
ab81f3fd ACM |
1093 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1094 | "Show a column with the number of samples"), | |
2376c67a ACM |
1095 | OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts, |
1096 | "mode[,dump_size]", record_callchain_help, | |
1097 | &parse_callchain_opt, "fp"), | |
ab81f3fd ACM |
1098 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1099 | "Show a column with the sum of periods"), | |
1100 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1101 | "only consider symbols in these dsos"), | |
1102 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1103 | "only consider symbols in these comms"), | |
1104 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1105 | "only consider these symbols"), | |
64c6f0c7 ACM |
1106 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1107 | "Interleave source code with assembly code (default)"), | |
1108 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1109 | "Display raw encoding of assembly instructions (default)"), | |
1110 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", | |
1111 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1112 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
b456bae0 | 1113 | OPT_END() |
1758af10 | 1114 | }; |
be772842 ACM |
1115 | const char * const top_usage[] = { |
1116 | "perf top [<options>]", | |
1117 | NULL | |
1118 | }; | |
b456bae0 | 1119 | |
334fe7a3 | 1120 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1121 | if (top.evlist == NULL) |
361c99a6 ACM |
1122 | return -ENOMEM; |
1123 | ||
ab81f3fd | 1124 | symbol_conf.exclude_other = false; |
b456bae0 | 1125 | |
b456bae0 IM |
1126 | argc = parse_options(argc, argv, options, top_usage, 0); |
1127 | if (argc) | |
1128 | usage_with_options(top_usage, options); | |
1129 | ||
ab81f3fd ACM |
1130 | if (sort_order == default_sort_order) |
1131 | sort_order = "dso,symbol"; | |
1132 | ||
55309985 NK |
1133 | if (setup_sorting() < 0) |
1134 | usage_with_options(top_usage, options); | |
ab81f3fd | 1135 | |
1758af10 | 1136 | if (top.use_stdio) |
c0443df1 | 1137 | use_browser = 0; |
1758af10 | 1138 | else if (top.use_tui) |
c0443df1 ACM |
1139 | use_browser = 1; |
1140 | ||
1141 | setup_browser(false); | |
1142 | ||
2376c67a | 1143 | status = perf_target__validate(target); |
16ad2ffb | 1144 | if (status) { |
2376c67a | 1145 | perf_target__strerror(target, status, errbuf, BUFSIZ); |
16ad2ffb NK |
1146 | ui__warning("%s", errbuf); |
1147 | } | |
1148 | ||
2376c67a | 1149 | status = perf_target__parse_uid(target); |
16ad2ffb NK |
1150 | if (status) { |
1151 | int saved_errno = errno; | |
4bd0f2d2 | 1152 | |
2376c67a | 1153 | perf_target__strerror(target, status, errbuf, BUFSIZ); |
3780f488 | 1154 | ui__error("%s", errbuf); |
16ad2ffb NK |
1155 | |
1156 | status = -saved_errno; | |
0d37aa34 | 1157 | goto out_delete_evlist; |
16ad2ffb | 1158 | } |
0d37aa34 | 1159 | |
2376c67a ACM |
1160 | if (perf_target__none(target)) |
1161 | target->system_wide = true; | |
10b47d54 | 1162 | |
2376c67a | 1163 | if (perf_evlist__create_maps(top.evlist, target) < 0) |
7e2ed097 ACM |
1164 | usage_with_options(top_usage, options); |
1165 | ||
8c3e10eb ACM |
1166 | if (!top.evlist->nr_entries && |
1167 | perf_evlist__add_default(top.evlist) < 0) { | |
3780f488 | 1168 | ui__error("Not enough memory for event selector list\n"); |
0de233b9 | 1169 | goto out_delete_maps; |
69aad6f1 | 1170 | } |
5a8e5a30 | 1171 | |
d04b35f8 ACM |
1172 | symbol_conf.nr_events = top.evlist->nr_entries; |
1173 | ||
8c3e10eb ACM |
1174 | if (top.delay_secs < 1) |
1175 | top.delay_secs = 1; | |
2f335a02 | 1176 | |
2376c67a ACM |
1177 | if (opts->user_interval != ULLONG_MAX) |
1178 | opts->default_interval = opts->user_interval; | |
1179 | if (opts->user_freq != UINT_MAX) | |
1180 | opts->freq = opts->user_freq; | |
1181 | ||
7e4ff9e3 MG |
1182 | /* |
1183 | * User specified count overrides default frequency. | |
1184 | */ | |
2376c67a ACM |
1185 | if (opts->default_interval) |
1186 | opts->freq = 0; | |
1187 | else if (opts->freq) { | |
1188 | opts->default_interval = opts->freq; | |
7e4ff9e3 | 1189 | } else { |
3780f488 | 1190 | ui__error("frequency and count are zero, aborting\n"); |
2376c67a | 1191 | status = -EINVAL; |
0de233b9 | 1192 | goto out_delete_maps; |
69aad6f1 ACM |
1193 | } |
1194 | ||
0c21f736 | 1195 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1196 | |
ab81f3fd | 1197 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1198 | |
1199 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1200 | if (symbol__init() < 0) | |
1201 | return -1; | |
1202 | ||
08e71542 | 1203 | sort__setup_elide(stdout); |
ab81f3fd | 1204 | |
1758af10 | 1205 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1206 | if (top.print_entries == 0) { |
1758af10 ACM |
1207 | struct sigaction act = { |
1208 | .sa_sigaction = perf_top__sig_winch, | |
1209 | .sa_flags = SA_SIGINFO, | |
1210 | }; | |
1211 | perf_top__update_print_entries(&top); | |
1212 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1213 | } |
1214 | ||
1758af10 | 1215 | status = __cmd_top(&top); |
806fb630 | 1216 | |
0de233b9 ACM |
1217 | out_delete_maps: |
1218 | perf_evlist__delete_maps(top.evlist); | |
0d37aa34 | 1219 | out_delete_evlist: |
8c3e10eb | 1220 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1221 | |
1222 | return status; | |
b456bae0 | 1223 | } |