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Commit | Line | Data |
---|---|---|
07800601 | 1 | /* |
bf9e1876 IM |
2 | * builtin-top.c |
3 | * | |
4 | * Builtin top command: Display a continuously updated profile of | |
5 | * any workload, CPU or specific PID. | |
6 | * | |
7 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> | |
ab81f3fd | 8 | * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> |
bf9e1876 IM |
9 | * |
10 | * Improvements and fixes by: | |
11 | * | |
12 | * Arjan van de Ven <arjan@linux.intel.com> | |
13 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
14 | * Wu Fengguang <fengguang.wu@intel.com> | |
15 | * Mike Galbraith <efault@gmx.de> | |
16 | * Paul Mackerras <paulus@samba.org> | |
17 | * | |
18 | * Released under the GPL v2. (and only v2, not any later version) | |
07800601 | 19 | */ |
bf9e1876 | 20 | #include "builtin.h" |
07800601 | 21 | |
1a482f38 | 22 | #include "perf.h" |
bf9e1876 | 23 | |
36532461 | 24 | #include "util/annotate.h" |
c0443df1 | 25 | #include "util/cache.h" |
8fc0321f | 26 | #include "util/color.h" |
361c99a6 | 27 | #include "util/evlist.h" |
69aad6f1 | 28 | #include "util/evsel.h" |
b0a7d1a0 | 29 | #include "util/machine.h" |
b3165f41 ACM |
30 | #include "util/session.h" |
31 | #include "util/symbol.h" | |
439d473b | 32 | #include "util/thread.h" |
fd78260b | 33 | #include "util/thread_map.h" |
8c3e10eb | 34 | #include "util/top.h" |
148be2c1 | 35 | #include "util/util.h" |
43cbcd8a | 36 | #include <linux/rbtree.h> |
b456bae0 IM |
37 | #include "util/parse-options.h" |
38 | #include "util/parse-events.h" | |
a12b51c4 | 39 | #include "util/cpumap.h" |
69aad6f1 | 40 | #include "util/xyarray.h" |
ab81f3fd | 41 | #include "util/sort.h" |
6b118e92 | 42 | #include "util/intlist.h" |
0d3942db | 43 | #include "arch/common.h" |
07800601 | 44 | |
8f28827a FW |
45 | #include "util/debug.h" |
46 | ||
07800601 | 47 | #include <assert.h> |
31d68e7b | 48 | #include <elf.h> |
07800601 | 49 | #include <fcntl.h> |
0e9b20b8 | 50 | |
07800601 | 51 | #include <stdio.h> |
923c42c1 MG |
52 | #include <termios.h> |
53 | #include <unistd.h> | |
9486aa38 | 54 | #include <inttypes.h> |
0e9b20b8 | 55 | |
07800601 | 56 | #include <errno.h> |
07800601 IM |
57 | #include <time.h> |
58 | #include <sched.h> | |
07800601 IM |
59 | |
60 | #include <sys/syscall.h> | |
61 | #include <sys/ioctl.h> | |
62 | #include <sys/poll.h> | |
63 | #include <sys/prctl.h> | |
64 | #include <sys/wait.h> | |
65 | #include <sys/uio.h> | |
31d68e7b | 66 | #include <sys/utsname.h> |
07800601 IM |
67 | #include <sys/mman.h> |
68 | ||
69 | #include <linux/unistd.h> | |
70 | #include <linux/types.h> | |
71 | ||
11859e82 ACM |
72 | static volatile int done; |
73 | ||
933cbb1c NK |
74 | #define HEADER_LINE_NR 5 |
75 | ||
1758af10 | 76 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 77 | { |
933cbb1c | 78 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
79 | } |
80 | ||
1d037ca1 IT |
81 | static void perf_top__sig_winch(int sig __maybe_unused, |
82 | siginfo_t *info __maybe_unused, void *arg) | |
3b6ed988 | 83 | { |
1758af10 ACM |
84 | struct perf_top *top = arg; |
85 | ||
86 | get_term_dimensions(&top->winsize); | |
87 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
88 | } |
89 | ||
1758af10 | 90 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 MG |
91 | { |
92 | struct symbol *sym; | |
ce6f4fab | 93 | struct annotation *notes; |
439d473b | 94 | struct map *map; |
36532461 | 95 | int err = -1; |
923c42c1 | 96 | |
ab81f3fd | 97 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
98 | return -1; |
99 | ||
ab81f3fd ACM |
100 | sym = he->ms.sym; |
101 | map = he->ms.map; | |
b0a9ab62 ACM |
102 | |
103 | /* | |
104 | * We can't annotate with just /proc/kallsyms | |
105 | */ | |
bbb7f846 AH |
106 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
107 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
108 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
109 | "path\n", sym->name); | |
110 | sleep(1); | |
b0a9ab62 | 111 | return -1; |
b269876c ACM |
112 | } |
113 | ||
ce6f4fab ACM |
114 | notes = symbol__annotation(sym); |
115 | if (notes->src != NULL) { | |
116 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
117 | goto out_assign; |
118 | } | |
923c42c1 | 119 | |
ce6f4fab | 120 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 121 | |
d04b35f8 | 122 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 123 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
124 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
125 | sym->name); | |
ce6f4fab | 126 | sleep(1); |
c97cf422 | 127 | return err; |
923c42c1 | 128 | } |
36532461 | 129 | |
ab81f3fd | 130 | err = symbol__annotate(sym, map, 0); |
36532461 | 131 | if (err == 0) { |
923c42c1 | 132 | out_assign: |
1758af10 | 133 | top->sym_filter_entry = he; |
36532461 | 134 | } |
c97cf422 | 135 | |
ce6f4fab | 136 | pthread_mutex_unlock(¬es->lock); |
36532461 | 137 | return err; |
923c42c1 MG |
138 | } |
139 | ||
ab81f3fd | 140 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 141 | { |
ab81f3fd | 142 | struct symbol *sym = he->ms.sym; |
36532461 | 143 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
144 | } |
145 | ||
31d68e7b ACM |
146 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
147 | { | |
148 | struct utsname uts; | |
149 | int err = uname(&uts); | |
150 | ||
151 | ui__warning("Out of bounds address found:\n\n" | |
152 | "Addr: %" PRIx64 "\n" | |
153 | "DSO: %s %c\n" | |
154 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
155 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
156 | "Arch: %s\n" | |
157 | "Kernel: %s\n" | |
158 | "Tools: %s\n\n" | |
159 | "Not all samples will be on the annotation output.\n\n" | |
160 | "Please report to linux-kernel@vger.kernel.org\n", | |
161 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
162 | map->start, map->end, sym->start, sym->end, | |
163 | sym->binding == STB_GLOBAL ? 'g' : | |
164 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
165 | err ? "[unknown]" : uts.machine, | |
166 | err ? "[unknown]" : uts.release, perf_version_string); | |
167 | if (use_browser <= 0) | |
168 | sleep(5); | |
169 | ||
170 | map->erange_warned = true; | |
171 | } | |
172 | ||
1758af10 ACM |
173 | static void perf_top__record_precise_ip(struct perf_top *top, |
174 | struct hist_entry *he, | |
175 | int counter, u64 ip) | |
923c42c1 | 176 | { |
ce6f4fab ACM |
177 | struct annotation *notes; |
178 | struct symbol *sym; | |
31d68e7b | 179 | int err; |
ce6f4fab | 180 | |
ab81f3fd | 181 | if (he == NULL || he->ms.sym == NULL || |
1758af10 ACM |
182 | ((top->sym_filter_entry == NULL || |
183 | top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) | |
923c42c1 MG |
184 | return; |
185 | ||
ab81f3fd | 186 | sym = he->ms.sym; |
ce6f4fab ACM |
187 | notes = symbol__annotation(sym); |
188 | ||
189 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
190 | return; |
191 | ||
ab81f3fd | 192 | ip = he->ms.map->map_ip(he->ms.map, ip); |
618afb29 | 193 | err = hist_entry__inc_addr_samples(he, counter, ip); |
c7ad21af | 194 | |
ce6f4fab | 195 | pthread_mutex_unlock(¬es->lock); |
31d68e7b ACM |
196 | |
197 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
198 | ui__warn_map_erange(he->ms.map, sym, ip); | |
b66d8c0c ACM |
199 | else if (err == -ENOMEM) { |
200 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
201 | sym->name); | |
202 | sleep(1); | |
203 | } | |
923c42c1 MG |
204 | } |
205 | ||
1758af10 | 206 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 207 | { |
1758af10 | 208 | struct hist_entry *he = top->sym_filter_entry; |
ce6f4fab | 209 | struct annotation *notes; |
923c42c1 | 210 | struct symbol *symbol; |
36532461 | 211 | int more; |
923c42c1 | 212 | |
ab81f3fd | 213 | if (!he) |
923c42c1 MG |
214 | return; |
215 | ||
ab81f3fd | 216 | symbol = he->ms.sym; |
ce6f4fab ACM |
217 | notes = symbol__annotation(symbol); |
218 | ||
219 | pthread_mutex_lock(¬es->lock); | |
220 | ||
221 | if (notes->src == NULL) | |
222 | goto out_unlock; | |
923c42c1 | 223 | |
7289f83c | 224 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 225 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 226 | |
db8fd07a | 227 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 ACM |
228 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
229 | if (top->zero) | |
230 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
36532461 | 231 | else |
1758af10 | 232 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); |
36532461 | 233 | if (more != 0) |
923c42c1 | 234 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
235 | out_unlock: |
236 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 237 | } |
07800601 | 238 | |
743eb868 ACM |
239 | static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, |
240 | struct addr_location *al, | |
241 | struct perf_sample *sample) | |
de04687f | 242 | { |
ab81f3fd ACM |
243 | struct hist_entry *he; |
244 | ||
27a0dcb7 | 245 | pthread_mutex_lock(&evsel->hists.lock); |
41a4e6e2 NK |
246 | he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, |
247 | sample->period, sample->weight, | |
248 | sample->transaction); | |
27a0dcb7 | 249 | pthread_mutex_unlock(&evsel->hists.lock); |
ab81f3fd ACM |
250 | if (he == NULL) |
251 | return NULL; | |
252 | ||
ab81f3fd ACM |
253 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
254 | return he; | |
de04687f | 255 | } |
07800601 | 256 | |
1758af10 | 257 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 258 | { |
8c3e10eb ACM |
259 | char bf[160]; |
260 | int printed = 0; | |
1758af10 | 261 | const int win_width = top->winsize.ws_col - 1; |
d94b9430 | 262 | |
0f5486b5 | 263 | puts(CONSOLE_CLEAR); |
07800601 | 264 | |
1758af10 | 265 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 266 | printf("%s\n", bf); |
07800601 | 267 | |
1758af10 | 268 | perf_top__reset_sample_counters(top); |
07800601 | 269 | |
1a105f74 | 270 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 271 | |
1758af10 ACM |
272 | if (top->sym_evsel->hists.stats.nr_lost_warned != |
273 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { | |
274 | top->sym_evsel->hists.stats.nr_lost_warned = | |
275 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
276 | color_fprintf(stdout, PERF_COLOR_RED, |
277 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
1758af10 | 278 | top->sym_evsel->hists.stats.nr_lost_warned); |
ab81f3fd | 279 | ++printed; |
93fc64f1 ACM |
280 | } |
281 | ||
1758af10 ACM |
282 | if (top->sym_filter_entry) { |
283 | perf_top__show_details(top); | |
923c42c1 MG |
284 | return; |
285 | } | |
286 | ||
c1fb5651 | 287 | hists__collapse_resort(&top->sym_evsel->hists, NULL); |
3a5714f8 NK |
288 | hists__output_resort(&top->sym_evsel->hists); |
289 | hists__decay_entries(&top->sym_evsel->hists, | |
290 | top->hide_user_symbols, | |
291 | top->hide_kernel_symbols); | |
1758af10 | 292 | hists__output_recalc_col_len(&top->sym_evsel->hists, |
933cbb1c | 293 | top->print_entries - printed); |
7cc017ed | 294 | putchar('\n'); |
41724e4c | 295 | hists__fprintf(&top->sym_evsel->hists, false, |
fa5df943 NK |
296 | top->print_entries - printed, win_width, |
297 | top->min_percent, stdout); | |
07800601 IM |
298 | } |
299 | ||
923c42c1 MG |
300 | static void prompt_integer(int *target, const char *msg) |
301 | { | |
302 | char *buf = malloc(0), *p; | |
303 | size_t dummy = 0; | |
304 | int tmp; | |
305 | ||
306 | fprintf(stdout, "\n%s: ", msg); | |
307 | if (getline(&buf, &dummy, stdin) < 0) | |
308 | return; | |
309 | ||
310 | p = strchr(buf, '\n'); | |
311 | if (p) | |
312 | *p = 0; | |
313 | ||
314 | p = buf; | |
315 | while(*p) { | |
316 | if (!isdigit(*p)) | |
317 | goto out_free; | |
318 | p++; | |
319 | } | |
320 | tmp = strtoul(buf, NULL, 10); | |
321 | *target = tmp; | |
322 | out_free: | |
323 | free(buf); | |
324 | } | |
325 | ||
326 | static void prompt_percent(int *target, const char *msg) | |
327 | { | |
328 | int tmp = 0; | |
329 | ||
330 | prompt_integer(&tmp, msg); | |
331 | if (tmp >= 0 && tmp <= 100) | |
332 | *target = tmp; | |
333 | } | |
334 | ||
1758af10 | 335 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
336 | { |
337 | char *buf = malloc(0), *p; | |
1758af10 | 338 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
ab81f3fd | 339 | struct rb_node *next; |
923c42c1 MG |
340 | size_t dummy = 0; |
341 | ||
342 | /* zero counters of active symbol */ | |
343 | if (syme) { | |
923c42c1 | 344 | __zero_source_counters(syme); |
1758af10 | 345 | top->sym_filter_entry = NULL; |
923c42c1 MG |
346 | } |
347 | ||
348 | fprintf(stdout, "\n%s: ", msg); | |
349 | if (getline(&buf, &dummy, stdin) < 0) | |
350 | goto out_free; | |
351 | ||
352 | p = strchr(buf, '\n'); | |
353 | if (p) | |
354 | *p = 0; | |
355 | ||
1758af10 | 356 | next = rb_first(&top->sym_evsel->hists.entries); |
ab81f3fd ACM |
357 | while (next) { |
358 | n = rb_entry(next, struct hist_entry, rb_node); | |
359 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
360 | found = n; | |
923c42c1 MG |
361 | break; |
362 | } | |
ab81f3fd | 363 | next = rb_next(&n->rb_node); |
923c42c1 MG |
364 | } |
365 | ||
366 | if (!found) { | |
66aeb6d5 | 367 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 368 | sleep(1); |
923c42c1 | 369 | } else |
1758af10 | 370 | perf_top__parse_source(top, found); |
923c42c1 MG |
371 | |
372 | out_free: | |
373 | free(buf); | |
374 | } | |
375 | ||
1758af10 | 376 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 377 | { |
091bd2e9 MG |
378 | char *name = NULL; |
379 | ||
1758af10 ACM |
380 | if (top->sym_filter_entry) { |
381 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
382 | name = sym->name; |
383 | } | |
384 | ||
385 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
386 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
387 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 388 | |
1758af10 | 389 | if (top->evlist->nr_entries > 1) |
7289f83c | 390 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 391 | |
1758af10 | 392 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 393 | |
1758af10 | 394 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
395 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
396 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 397 | |
8ffcda17 | 398 | fprintf(stdout, |
1a72cfa6 | 399 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 400 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
401 | fprintf(stdout, |
402 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
403 | top->hide_user_symbols ? "yes" : "no"); |
404 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
405 | fprintf(stdout, "\t[qQ] quit.\n"); |
406 | } | |
407 | ||
1758af10 | 408 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
409 | { |
410 | switch (c) { | |
411 | case 'd': | |
412 | case 'e': | |
413 | case 'f': | |
414 | case 'z': | |
415 | case 'q': | |
416 | case 'Q': | |
8ffcda17 ACM |
417 | case 'K': |
418 | case 'U': | |
6cff0e8d KS |
419 | case 'F': |
420 | case 's': | |
421 | case 'S': | |
091bd2e9 MG |
422 | return 1; |
423 | case 'E': | |
1758af10 | 424 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
425 | default: |
426 | break; | |
091bd2e9 MG |
427 | } |
428 | ||
429 | return 0; | |
923c42c1 MG |
430 | } |
431 | ||
11859e82 | 432 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 433 | { |
11859e82 ACM |
434 | bool ret = true; |
435 | ||
1758af10 | 436 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 MG |
437 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
438 | struct termios tc, save; | |
439 | ||
1758af10 | 440 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
441 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
442 | fflush(stdout); | |
443 | ||
444 | tcgetattr(0, &save); | |
445 | tc = save; | |
446 | tc.c_lflag &= ~(ICANON | ECHO); | |
447 | tc.c_cc[VMIN] = 0; | |
448 | tc.c_cc[VTIME] = 0; | |
449 | tcsetattr(0, TCSANOW, &tc); | |
450 | ||
451 | poll(&stdin_poll, 1, -1); | |
452 | c = getc(stdin); | |
453 | ||
454 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 455 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 456 | return ret; |
091bd2e9 MG |
457 | } |
458 | ||
923c42c1 MG |
459 | switch (c) { |
460 | case 'd': | |
1758af10 ACM |
461 | prompt_integer(&top->delay_secs, "Enter display delay"); |
462 | if (top->delay_secs < 1) | |
463 | top->delay_secs = 1; | |
923c42c1 MG |
464 | break; |
465 | case 'e': | |
1758af10 ACM |
466 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
467 | if (top->print_entries == 0) { | |
468 | struct sigaction act = { | |
469 | .sa_sigaction = perf_top__sig_winch, | |
470 | .sa_flags = SA_SIGINFO, | |
471 | }; | |
472 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
473 | sigaction(SIGWINCH, &act, NULL); | |
509605db | 474 | } else { |
3b6ed988 | 475 | signal(SIGWINCH, SIG_DFL); |
509605db | 476 | } |
923c42c1 MG |
477 | break; |
478 | case 'E': | |
1758af10 | 479 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
480 | /* Select 0 as the default event: */ |
481 | int counter = 0; | |
482 | ||
923c42c1 | 483 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 484 | |
0050f7aa | 485 | evlist__for_each(top->evlist, top->sym_evsel) |
7289f83c | 486 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 487 | |
ec52d976 | 488 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 489 | |
1758af10 | 490 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 491 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 492 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 493 | sleep(1); |
69aad6f1 | 494 | break; |
923c42c1 | 495 | } |
0050f7aa | 496 | evlist__for_each(top->evlist, top->sym_evsel) |
1758af10 | 497 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 498 | break; |
ec52d976 | 499 | } else |
0c21f736 | 500 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
501 | break; |
502 | case 'f': | |
1758af10 | 503 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
504 | break; |
505 | case 'F': | |
1758af10 ACM |
506 | prompt_percent(&top->sym_pcnt_filter, |
507 | "Enter details display event filter (percent)"); | |
923c42c1 | 508 | break; |
8ffcda17 | 509 | case 'K': |
1758af10 | 510 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 511 | break; |
923c42c1 MG |
512 | case 'q': |
513 | case 'Q': | |
514 | printf("exiting.\n"); | |
1758af10 ACM |
515 | if (top->dump_symtab) |
516 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
517 | ret = false; |
518 | break; | |
923c42c1 | 519 | case 's': |
1758af10 | 520 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
521 | break; |
522 | case 'S': | |
1758af10 | 523 | if (!top->sym_filter_entry) |
923c42c1 MG |
524 | break; |
525 | else { | |
1758af10 | 526 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 527 | |
1758af10 | 528 | top->sym_filter_entry = NULL; |
923c42c1 | 529 | __zero_source_counters(syme); |
923c42c1 MG |
530 | } |
531 | break; | |
8ffcda17 | 532 | case 'U': |
1758af10 | 533 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 534 | break; |
923c42c1 | 535 | case 'z': |
1758af10 | 536 | top->zero = !top->zero; |
923c42c1 | 537 | break; |
83a0944f IM |
538 | default: |
539 | break; | |
923c42c1 | 540 | } |
11859e82 ACM |
541 | |
542 | return ret; | |
923c42c1 MG |
543 | } |
544 | ||
ab81f3fd ACM |
545 | static void perf_top__sort_new_samples(void *arg) |
546 | { | |
547 | struct perf_top *t = arg; | |
548 | perf_top__reset_sample_counters(t); | |
549 | ||
550 | if (t->evlist->selected != NULL) | |
551 | t->sym_evsel = t->evlist->selected; | |
552 | ||
c1fb5651 | 553 | hists__collapse_resort(&t->sym_evsel->hists, NULL); |
3a5714f8 NK |
554 | hists__output_resort(&t->sym_evsel->hists); |
555 | hists__decay_entries(&t->sym_evsel->hists, | |
556 | t->hide_user_symbols, | |
557 | t->hide_kernel_symbols); | |
ab81f3fd ACM |
558 | } |
559 | ||
1758af10 | 560 | static void *display_thread_tui(void *arg) |
c0443df1 | 561 | { |
0d37aa34 | 562 | struct perf_evsel *pos; |
1758af10 | 563 | struct perf_top *top = arg; |
ab81f3fd | 564 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
565 | struct hist_browser_timer hbt = { |
566 | .timer = perf_top__sort_new_samples, | |
567 | .arg = top, | |
568 | .refresh = top->delay_secs, | |
569 | }; | |
ab81f3fd | 570 | |
1758af10 | 571 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
572 | |
573 | /* | |
574 | * Initialize the uid_filter_str, in the future the TUI will allow | |
575 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
576 | * via --uid. | |
577 | */ | |
0050f7aa | 578 | evlist__for_each(top->evlist, pos) |
2376c67a | 579 | pos->hists.uid_filter_str = top->record_opts.target.uid_str; |
0d37aa34 | 580 | |
fa5df943 | 581 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, |
68d80758 | 582 | &top->session->header.env); |
ab81f3fd | 583 | |
11859e82 | 584 | done = 1; |
c0443df1 ACM |
585 | return NULL; |
586 | } | |
587 | ||
1758af10 | 588 | static void *display_thread(void *arg) |
07800601 | 589 | { |
0f5486b5 | 590 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 | 591 | struct termios tc, save; |
1758af10 | 592 | struct perf_top *top = arg; |
923c42c1 MG |
593 | int delay_msecs, c; |
594 | ||
595 | tcgetattr(0, &save); | |
596 | tc = save; | |
597 | tc.c_lflag &= ~(ICANON | ECHO); | |
598 | tc.c_cc[VMIN] = 0; | |
599 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 600 | |
3af6e338 | 601 | pthread__unblock_sigwinch(); |
923c42c1 | 602 | repeat: |
1758af10 | 603 | delay_msecs = top->delay_secs * 1000; |
923c42c1 MG |
604 | tcsetattr(0, TCSANOW, &tc); |
605 | /* trash return*/ | |
606 | getc(stdin); | |
07800601 | 607 | |
11859e82 | 608 | while (!done) { |
1758af10 | 609 | perf_top__print_sym_table(top); |
3af6e338 ACM |
610 | /* |
611 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
612 | * refresh screen in both cases. | |
613 | */ | |
614 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
615 | case 0: | |
616 | continue; | |
617 | case -1: | |
618 | if (errno == EINTR) | |
619 | continue; | |
620 | /* Fall trhu */ | |
621 | default: | |
11859e82 ACM |
622 | c = getc(stdin); |
623 | tcsetattr(0, TCSAFLUSH, &save); | |
624 | ||
625 | if (perf_top__handle_keypress(top, c)) | |
626 | goto repeat; | |
627 | done = 1; | |
3af6e338 ACM |
628 | } |
629 | } | |
07800601 IM |
630 | |
631 | return NULL; | |
632 | } | |
633 | ||
1d037ca1 | 634 | static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) |
07800601 | 635 | { |
de04687f ACM |
636 | const char *name = sym->name; |
637 | ||
3a3393ef AB |
638 | /* |
639 | * ppc64 uses function descriptors and appends a '.' to the | |
640 | * start of every instruction address. Remove it. | |
641 | */ | |
642 | if (name[0] == '.') | |
643 | name++; | |
644 | ||
de04687f ACM |
645 | if (!strcmp(name, "_text") || |
646 | !strcmp(name, "_etext") || | |
647 | !strcmp(name, "_sinittext") || | |
648 | !strncmp("init_module", name, 11) || | |
649 | !strncmp("cleanup_module", name, 14) || | |
650 | strstr(name, "_text_start") || | |
651 | strstr(name, "_text_end")) | |
07800601 | 652 | return 1; |
07800601 | 653 | |
82d1deb0 DA |
654 | if (symbol__is_idle(sym)) |
655 | sym->ignore = true; | |
07800601 | 656 | |
07800601 IM |
657 | return 0; |
658 | } | |
659 | ||
1758af10 ACM |
660 | static void perf_event__process_sample(struct perf_tool *tool, |
661 | const union perf_event *event, | |
7b27509f | 662 | struct perf_evsel *evsel, |
8115d60c | 663 | struct perf_sample *sample, |
743eb868 | 664 | struct machine *machine) |
07800601 | 665 | { |
1758af10 | 666 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
19d4ac3c | 667 | struct symbol *parent = NULL; |
ef89325f | 668 | u64 ip = sample->ip; |
1ed091c4 | 669 | struct addr_location al; |
19d4ac3c | 670 | int err; |
5b2bb75a | 671 | |
23346f21 | 672 | if (!machine && perf_guest) { |
6b118e92 DA |
673 | static struct intlist *seen; |
674 | ||
675 | if (!seen) | |
ffe0fb76 | 676 | seen = intlist__new(NULL); |
6b118e92 | 677 | |
ef89325f | 678 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 679 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
680 | sample->pid); |
681 | intlist__add(seen, sample->pid); | |
6b118e92 | 682 | } |
a1645ce1 ZY |
683 | return; |
684 | } | |
685 | ||
0c095715 | 686 | if (!machine) { |
11859e82 | 687 | pr_err("%u unprocessable samples recorded.\r", |
28a6b6aa | 688 | top->session->stats.nr_unprocessable_samples++); |
0c095715 JR |
689 | return; |
690 | } | |
691 | ||
8115d60c | 692 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 693 | top->exact_samples++; |
1676b8a0 | 694 | |
e44baa3e | 695 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0 || |
72b8fa17 | 696 | al.filtered) |
1ed091c4 | 697 | return; |
07800601 | 698 | |
1758af10 | 699 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
700 | symbol_conf.kptr_restrict && |
701 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
702 | ui__warning( | |
703 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
704 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
705 | "Kernel%s samples will not be resolved.\n", | |
706 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
707 | " modules" : ""); | |
708 | if (use_browser <= 0) | |
709 | sleep(5); | |
1758af10 | 710 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
711 | } |
712 | ||
72b8fa17 | 713 | if (al.sym == NULL) { |
e4a338d0 | 714 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
715 | /* |
716 | * As we do lazy loading of symtabs we only will know if the | |
717 | * specified vmlinux file is invalid when we actually have a | |
718 | * hit in kernel space and then try to load it. So if we get | |
719 | * here and there are _no_ symbols in the DSO backing the | |
720 | * kernel map, bail out. | |
721 | * | |
722 | * We may never get here, for instance, if we use -K/ | |
723 | * --hide-kernel-symbols, even if the user specifies an | |
724 | * invalid --vmlinux ;-) | |
725 | */ | |
1758af10 | 726 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 727 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 728 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
729 | if (symbol_conf.vmlinux_name) { |
730 | ui__warning("The %s file can't be used.\n%s", | |
731 | symbol_conf.vmlinux_name, msg); | |
732 | } else { | |
733 | ui__warning("A vmlinux file was not found.\n%s", | |
734 | msg); | |
735 | } | |
736 | ||
737 | if (use_browser <= 0) | |
738 | sleep(5); | |
1758af10 | 739 | top->vmlinux_warned = true; |
72b8fa17 | 740 | } |
6cff0e8d KS |
741 | } |
742 | ||
ab81f3fd | 743 | if (al.sym == NULL || !al.sym->ignore) { |
ab81f3fd | 744 | struct hist_entry *he; |
70db7533 | 745 | |
2dc9fb1a NK |
746 | err = sample__resolve_callchain(sample, &parent, evsel, &al, |
747 | top->max_stack); | |
748 | if (err) | |
749 | return; | |
19d4ac3c | 750 | |
743eb868 | 751 | he = perf_evsel__add_hist_entry(evsel, &al, sample); |
ab81f3fd ACM |
752 | if (he == NULL) { |
753 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
754 | return; | |
5807806a | 755 | } |
ab81f3fd | 756 | |
2dc9fb1a NK |
757 | err = hist_entry__append_callchain(he, sample); |
758 | if (err) | |
759 | return; | |
19d4ac3c | 760 | |
8f0f684b | 761 | if (sort__has_sym) |
1758af10 | 762 | perf_top__record_precise_ip(top, he, evsel->idx, ip); |
5b2bb75a | 763 | } |
ab81f3fd ACM |
764 | |
765 | return; | |
07800601 IM |
766 | } |
767 | ||
1758af10 | 768 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 769 | { |
8d50e5b4 | 770 | struct perf_sample sample; |
7b27509f | 771 | struct perf_evsel *evsel; |
1758af10 | 772 | struct perf_session *session = top->session; |
8115d60c | 773 | union perf_event *event; |
743eb868 ACM |
774 | struct machine *machine; |
775 | u8 origin; | |
5538beca | 776 | int ret; |
07800601 | 777 | |
1758af10 | 778 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 779 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
780 | if (ret) { |
781 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 782 | goto next_event; |
5538beca | 783 | } |
04391deb | 784 | |
1758af10 | 785 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
786 | assert(evsel != NULL); |
787 | ||
743eb868 ACM |
788 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
789 | ||
5b2bb75a | 790 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 791 | ++top->samples; |
743eb868 ACM |
792 | |
793 | switch (origin) { | |
794 | case PERF_RECORD_MISC_USER: | |
1758af10 ACM |
795 | ++top->us_samples; |
796 | if (top->hide_user_symbols) | |
8e50d384 | 797 | goto next_event; |
34ba5122 | 798 | machine = &session->machines.host; |
743eb868 ACM |
799 | break; |
800 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
801 | ++top->kernel_samples; |
802 | if (top->hide_kernel_symbols) | |
8e50d384 | 803 | goto next_event; |
34ba5122 | 804 | machine = &session->machines.host; |
743eb868 ACM |
805 | break; |
806 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 807 | ++top->guest_kernel_samples; |
ef89325f AH |
808 | machine = perf_session__find_machine(session, |
809 | sample.pid); | |
743eb868 ACM |
810 | break; |
811 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 812 | ++top->guest_us_samples; |
743eb868 ACM |
813 | /* |
814 | * TODO: we don't process guest user from host side | |
815 | * except simple counting. | |
816 | */ | |
817 | /* Fall thru */ | |
818 | default: | |
8e50d384 | 819 | goto next_event; |
743eb868 ACM |
820 | } |
821 | ||
822 | ||
1758af10 ACM |
823 | if (event->header.type == PERF_RECORD_SAMPLE) { |
824 | perf_event__process_sample(&top->tool, event, evsel, | |
825 | &sample, machine); | |
826 | } else if (event->header.type < PERF_RECORD_MAX) { | |
7b27509f | 827 | hists__inc_nr_events(&evsel->hists, event->header.type); |
162f0bef | 828 | machine__process_event(machine, event, &sample); |
7b27509f | 829 | } else |
28a6b6aa | 830 | ++session->stats.nr_unknown_events; |
8e50d384 ZZ |
831 | next_event: |
832 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 833 | } |
07800601 IM |
834 | } |
835 | ||
1758af10 | 836 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 837 | { |
70db7533 ACM |
838 | int i; |
839 | ||
1758af10 ACM |
840 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
841 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
842 | } |
843 | ||
11859e82 | 844 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 845 | { |
56e52e85 | 846 | char msg[512]; |
6a4bb04c | 847 | struct perf_evsel *counter; |
1758af10 | 848 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 849 | struct record_opts *opts = &top->record_opts; |
727ab04e | 850 | |
2376c67a | 851 | perf_evlist__config(evlist, opts); |
7e4ff9e3 | 852 | |
0050f7aa | 853 | evlist__for_each(evlist, counter) { |
72cb7013 | 854 | try_again: |
1758af10 | 855 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 856 | top->evlist->threads) < 0) { |
56e52e85 | 857 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
d6d901c2 | 858 | if (verbose) |
c0a54341 | 859 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
860 | goto try_again; |
861 | } | |
c286c419 | 862 | |
56e52e85 ACM |
863 | perf_evsel__open_strerror(counter, &opts->target, |
864 | errno, msg, sizeof(msg)); | |
865 | ui__error("%s\n", msg); | |
c286c419 | 866 | goto out_err; |
d6d901c2 | 867 | } |
716c69fe | 868 | } |
70db7533 | 869 | |
2376c67a | 870 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 871 | ui__error("Failed to mmap with %d (%s)\n", |
c286c419 ACM |
872 | errno, strerror(errno)); |
873 | goto out_err; | |
874 | } | |
875 | ||
11859e82 | 876 | return 0; |
c286c419 ACM |
877 | |
878 | out_err: | |
11859e82 | 879 | return -1; |
716c69fe IM |
880 | } |
881 | ||
8f0f684b | 882 | static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) |
19d4ac3c | 883 | { |
8f0f684b | 884 | if (!sort__has_sym) { |
19d4ac3c | 885 | if (symbol_conf.use_callchain) { |
3780f488 | 886 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
887 | return -EINVAL; |
888 | } | |
2376c67a | 889 | } else if (callchain_param.mode != CHAIN_NONE) { |
19d4ac3c | 890 | if (callchain_register_param(&callchain_param) < 0) { |
3780f488 | 891 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
892 | return -EINVAL; |
893 | } | |
894 | } | |
895 | ||
896 | return 0; | |
897 | } | |
898 | ||
1758af10 | 899 | static int __cmd_top(struct perf_top *top) |
716c69fe | 900 | { |
b4006796 | 901 | struct record_opts *opts = &top->record_opts; |
716c69fe | 902 | pthread_t thread; |
19d4ac3c | 903 | int ret; |
f5fc1412 | 904 | |
6a4d98d7 | 905 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 906 | if (top->session == NULL) |
b3165f41 | 907 | return -ENOMEM; |
07800601 | 908 | |
36035f78 AH |
909 | machines__set_symbol_filter(&top->session->machines, symbol_filter); |
910 | ||
0d3942db SB |
911 | if (!objdump_path) { |
912 | ret = perf_session_env__lookup_objdump(&top->session->header.env); | |
913 | if (ret) | |
914 | goto out_delete; | |
915 | } | |
916 | ||
1758af10 | 917 | ret = perf_top__setup_sample_type(top); |
19d4ac3c ACM |
918 | if (ret) |
919 | goto out_delete; | |
920 | ||
a33fbd56 ACM |
921 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
922 | top->evlist->threads, false); | |
11859e82 ACM |
923 | ret = perf_top__start_counters(top); |
924 | if (ret) | |
925 | goto out_delete; | |
926 | ||
1758af10 | 927 | top->session->evlist = top->evlist; |
7b56cce2 | 928 | perf_session__set_id_hdr_size(top->session); |
07800601 | 929 | |
2376c67a ACM |
930 | /* |
931 | * When perf is starting the traced process, all the events (apart from | |
932 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
933 | * prematurely enabling them. | |
934 | * | |
935 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
936 | * so leave the check here. | |
937 | */ | |
602ad878 | 938 | if (!target__none(&opts->target)) |
2376c67a ACM |
939 | perf_evlist__enable(top->evlist); |
940 | ||
2f01190a | 941 | /* Wait for a minimal set of events before starting the snapshot */ |
1758af10 | 942 | poll(top->evlist->pollfd, top->evlist->nr_fds, 100); |
2f01190a | 943 | |
1758af10 | 944 | perf_top__mmap_read(top); |
2f01190a | 945 | |
11859e82 | 946 | ret = -1; |
c0443df1 | 947 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 948 | display_thread), top)) { |
3780f488 | 949 | ui__error("Could not create display thread.\n"); |
11859e82 | 950 | goto out_delete; |
07800601 IM |
951 | } |
952 | ||
1758af10 | 953 | if (top->realtime_prio) { |
07800601 IM |
954 | struct sched_param param; |
955 | ||
1758af10 | 956 | param.sched_priority = top->realtime_prio; |
07800601 | 957 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 958 | ui__error("Could not set realtime priority.\n"); |
11859e82 | 959 | goto out_delete; |
07800601 IM |
960 | } |
961 | } | |
962 | ||
11859e82 | 963 | while (!done) { |
1758af10 | 964 | u64 hits = top->samples; |
07800601 | 965 | |
1758af10 | 966 | perf_top__mmap_read(top); |
07800601 | 967 | |
1758af10 ACM |
968 | if (hits == top->samples) |
969 | ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); | |
07800601 IM |
970 | } |
971 | ||
11859e82 | 972 | ret = 0; |
19d4ac3c | 973 | out_delete: |
1758af10 ACM |
974 | perf_session__delete(top->session); |
975 | top->session = NULL; | |
19d4ac3c | 976 | |
11859e82 | 977 | return ret; |
19d4ac3c ACM |
978 | } |
979 | ||
980 | static int | |
ae779a63 | 981 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 982 | { |
19d4ac3c | 983 | symbol_conf.use_callchain = true; |
ae779a63 JO |
984 | return record_callchain_opt(opt, arg, unset); |
985 | } | |
19d4ac3c | 986 | |
ae779a63 JO |
987 | static int |
988 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
989 | { | |
990 | symbol_conf.use_callchain = true; | |
2376c67a | 991 | return record_parse_callchain_opt(opt, arg, unset); |
07800601 | 992 | } |
b456bae0 | 993 | |
fa5df943 NK |
994 | static int |
995 | parse_percent_limit(const struct option *opt, const char *arg, | |
996 | int unset __maybe_unused) | |
997 | { | |
998 | struct perf_top *top = opt->value; | |
999 | ||
1000 | top->min_percent = strtof(arg, NULL); | |
1001 | return 0; | |
1002 | } | |
1003 | ||
1d037ca1 | 1004 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1758af10 | 1005 | { |
d37a92dc | 1006 | int status = -1; |
16ad2ffb | 1007 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1008 | struct perf_top top = { |
1009 | .count_filter = 5, | |
1010 | .delay_secs = 2, | |
2376c67a ACM |
1011 | .record_opts = { |
1012 | .mmap_pages = UINT_MAX, | |
1013 | .user_freq = UINT_MAX, | |
1014 | .user_interval = ULLONG_MAX, | |
1015 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1016 | .target = { |
2376c67a ACM |
1017 | .uses_mmap = true, |
1018 | }, | |
d1cb9fce | 1019 | }, |
5dbb6e81 | 1020 | .max_stack = PERF_MAX_STACK_DEPTH, |
2376c67a | 1021 | .sym_pcnt_filter = 5, |
1758af10 | 1022 | }; |
b4006796 | 1023 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1024 | struct target *target = &opts->target; |
1758af10 | 1025 | const struct option options[] = { |
8c3e10eb | 1026 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1027 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1028 | parse_events_option), |
2376c67a ACM |
1029 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1030 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1031 | "profile events on existing process id"), |
2376c67a | 1032 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1033 | "profile events on existing thread id"), |
2376c67a | 1034 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1035 | "system-wide collection from all CPUs"), |
2376c67a | 1036 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1037 | "list of cpus to monitor"), |
b32d133a ACM |
1038 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1039 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1040 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1041 | "don't load vmlinux even if found"), | |
8c3e10eb | 1042 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1043 | "hide kernel symbols"), |
994a1f78 JO |
1044 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1045 | "number of mmap data pages", | |
1046 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1047 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1048 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1049 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1050 | "number of seconds to delay between refreshes"), |
1758af10 | 1051 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1052 | "dump the symbol table used for profiling"), |
8c3e10eb | 1053 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1054 | "only display functions with more events than this"), |
bf80669e | 1055 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1056 | "put the counters into a counter group"), |
2376c67a ACM |
1057 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1058 | "child tasks do not inherit counters"), | |
1758af10 | 1059 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1060 | "symbol to annotate"), |
2376c67a ACM |
1061 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1062 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1063 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1064 | "display this many functions"), |
8c3e10eb | 1065 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1066 | "hide user symbols"), |
1758af10 ACM |
1067 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1068 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1069 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1070 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1071 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
f5d05bce | 1072 | "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight," |
475eeab9 | 1073 | " abort, in_tx, transaction"), |
ab81f3fd ACM |
1074 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1075 | "Show a column with the number of samples"), | |
bf80669e | 1076 | OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, |
ae779a63 JO |
1077 | NULL, "enables call-graph recording", |
1078 | &callchain_opt), | |
1079 | OPT_CALLBACK(0, "call-graph", &top.record_opts, | |
1080 | "mode[,dump_size]", record_callchain_help, | |
1081 | &parse_callchain_opt), | |
5dbb6e81 WL |
1082 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1083 | "Set the maximum stack depth when parsing the callchain. " | |
1084 | "Default: " __stringify(PERF_MAX_STACK_DEPTH)), | |
b21484f1 GP |
1085 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1086 | "ignore callees of these functions in call graphs", | |
1087 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1088 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1089 | "Show a column with the sum of periods"), | |
1090 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1091 | "only consider symbols in these dsos"), | |
1092 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1093 | "only consider symbols in these comms"), | |
1094 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1095 | "only consider these symbols"), | |
64c6f0c7 ACM |
1096 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1097 | "Interleave source code with assembly code (default)"), | |
1098 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1099 | "Display raw encoding of assembly instructions (default)"), | |
0d3942db SB |
1100 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1101 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1102 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1103 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1104 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1105 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1106 | "Don't show entries under that percent", parse_percent_limit), | |
b456bae0 | 1107 | OPT_END() |
1758af10 | 1108 | }; |
be772842 ACM |
1109 | const char * const top_usage[] = { |
1110 | "perf top [<options>]", | |
1111 | NULL | |
1112 | }; | |
b456bae0 | 1113 | |
334fe7a3 | 1114 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1115 | if (top.evlist == NULL) |
361c99a6 ACM |
1116 | return -ENOMEM; |
1117 | ||
b456bae0 IM |
1118 | argc = parse_options(argc, argv, options, top_usage, 0); |
1119 | if (argc) | |
1120 | usage_with_options(top_usage, options); | |
1121 | ||
ab81f3fd ACM |
1122 | if (sort_order == default_sort_order) |
1123 | sort_order = "dso,symbol"; | |
1124 | ||
d37a92dc NK |
1125 | if (setup_sorting() < 0) { |
1126 | parse_options_usage(top_usage, options, "s", 1); | |
1127 | goto out_delete_evlist; | |
1128 | } | |
ab81f3fd | 1129 | |
3a5714f8 NK |
1130 | /* display thread wants entries to be collapsed in a different tree */ |
1131 | sort__need_collapse = 1; | |
1132 | ||
1758af10 | 1133 | if (top.use_stdio) |
c0443df1 | 1134 | use_browser = 0; |
1758af10 | 1135 | else if (top.use_tui) |
c0443df1 ACM |
1136 | use_browser = 1; |
1137 | ||
1138 | setup_browser(false); | |
1139 | ||
602ad878 | 1140 | status = target__validate(target); |
16ad2ffb | 1141 | if (status) { |
602ad878 | 1142 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1143 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1144 | } |
1145 | ||
602ad878 | 1146 | status = target__parse_uid(target); |
16ad2ffb NK |
1147 | if (status) { |
1148 | int saved_errno = errno; | |
4bd0f2d2 | 1149 | |
602ad878 | 1150 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1151 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1152 | |
1153 | status = -saved_errno; | |
0d37aa34 | 1154 | goto out_delete_evlist; |
16ad2ffb | 1155 | } |
0d37aa34 | 1156 | |
602ad878 | 1157 | if (target__none(target)) |
2376c67a | 1158 | target->system_wide = true; |
10b47d54 | 1159 | |
2376c67a | 1160 | if (perf_evlist__create_maps(top.evlist, target) < 0) |
7e2ed097 ACM |
1161 | usage_with_options(top_usage, options); |
1162 | ||
8c3e10eb ACM |
1163 | if (!top.evlist->nr_entries && |
1164 | perf_evlist__add_default(top.evlist) < 0) { | |
3780f488 | 1165 | ui__error("Not enough memory for event selector list\n"); |
03ad9747 | 1166 | goto out_delete_evlist; |
69aad6f1 | 1167 | } |
5a8e5a30 | 1168 | |
d04b35f8 ACM |
1169 | symbol_conf.nr_events = top.evlist->nr_entries; |
1170 | ||
8c3e10eb ACM |
1171 | if (top.delay_secs < 1) |
1172 | top.delay_secs = 1; | |
2f335a02 | 1173 | |
b4006796 | 1174 | if (record_opts__config(opts)) { |
2376c67a | 1175 | status = -EINVAL; |
03ad9747 | 1176 | goto out_delete_evlist; |
69aad6f1 ACM |
1177 | } |
1178 | ||
0c21f736 | 1179 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1180 | |
ab81f3fd | 1181 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1182 | |
1183 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1184 | if (symbol__init() < 0) | |
1185 | return -1; | |
1186 | ||
08e71542 | 1187 | sort__setup_elide(stdout); |
ab81f3fd | 1188 | |
1758af10 | 1189 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1190 | if (top.print_entries == 0) { |
1758af10 ACM |
1191 | struct sigaction act = { |
1192 | .sa_sigaction = perf_top__sig_winch, | |
1193 | .sa_flags = SA_SIGINFO, | |
1194 | }; | |
1195 | perf_top__update_print_entries(&top); | |
1196 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1197 | } |
1198 | ||
1758af10 | 1199 | status = __cmd_top(&top); |
806fb630 | 1200 | |
0d37aa34 | 1201 | out_delete_evlist: |
8c3e10eb | 1202 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1203 | |
1204 | return status; | |
b456bae0 | 1205 | } |