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" |
41840d21 | 25 | #include "util/config.h" |
8fc0321f | 26 | #include "util/color.h" |
5d8bb1ec | 27 | #include "util/drv_configs.h" |
361c99a6 | 28 | #include "util/evlist.h" |
69aad6f1 | 29 | #include "util/evsel.h" |
5ab8c689 | 30 | #include "util/event.h" |
b0a7d1a0 | 31 | #include "util/machine.h" |
b3165f41 ACM |
32 | #include "util/session.h" |
33 | #include "util/symbol.h" | |
439d473b | 34 | #include "util/thread.h" |
fd78260b | 35 | #include "util/thread_map.h" |
8c3e10eb | 36 | #include "util/top.h" |
43cbcd8a | 37 | #include <linux/rbtree.h> |
4b6ab94e | 38 | #include <subcmd/parse-options.h> |
b456bae0 | 39 | #include "util/parse-events.h" |
a12b51c4 | 40 | #include "util/cpumap.h" |
69aad6f1 | 41 | #include "util/xyarray.h" |
ab81f3fd | 42 | #include "util/sort.h" |
b0742e90 | 43 | #include "util/term.h" |
6b118e92 | 44 | #include "util/intlist.h" |
a18b027e | 45 | #include "util/parse-branch-options.h" |
0d3942db | 46 | #include "arch/common.h" |
07800601 | 47 | |
8f28827a FW |
48 | #include "util/debug.h" |
49 | ||
07800601 | 50 | #include <assert.h> |
31d68e7b | 51 | #include <elf.h> |
07800601 | 52 | #include <fcntl.h> |
0e9b20b8 | 53 | |
07800601 | 54 | #include <stdio.h> |
923c42c1 MG |
55 | #include <termios.h> |
56 | #include <unistd.h> | |
9486aa38 | 57 | #include <inttypes.h> |
0e9b20b8 | 58 | |
07800601 | 59 | #include <errno.h> |
07800601 IM |
60 | #include <time.h> |
61 | #include <sched.h> | |
9607ad3a | 62 | #include <signal.h> |
07800601 IM |
63 | |
64 | #include <sys/syscall.h> | |
65 | #include <sys/ioctl.h> | |
a8fa4960 | 66 | #include <poll.h> |
07800601 IM |
67 | #include <sys/prctl.h> |
68 | #include <sys/wait.h> | |
69 | #include <sys/uio.h> | |
31d68e7b | 70 | #include <sys/utsname.h> |
07800601 IM |
71 | #include <sys/mman.h> |
72 | ||
531d2410 | 73 | #include <linux/stringify.h> |
b9c4b0f4 | 74 | #include <linux/time64.h> |
07800601 IM |
75 | #include <linux/types.h> |
76 | ||
3d689ed6 ACM |
77 | #include "sane_ctype.h" |
78 | ||
11859e82 | 79 | static volatile int done; |
b135e5ee | 80 | static volatile int resize; |
11859e82 | 81 | |
933cbb1c NK |
82 | #define HEADER_LINE_NR 5 |
83 | ||
1758af10 | 84 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 85 | { |
933cbb1c | 86 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
3b6ed988 ACM |
87 | } |
88 | ||
244a1086 | 89 | static void winch_sig(int sig __maybe_unused) |
3b6ed988 | 90 | { |
b135e5ee JO |
91 | resize = 1; |
92 | } | |
1758af10 | 93 | |
b135e5ee JO |
94 | static void perf_top__resize(struct perf_top *top) |
95 | { | |
1758af10 ACM |
96 | get_term_dimensions(&top->winsize); |
97 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
98 | } |
99 | ||
1758af10 | 100 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 | 101 | { |
a7eec4c6 | 102 | struct perf_evsel *evsel = hists_to_evsel(he->hists); |
923c42c1 | 103 | struct symbol *sym; |
ce6f4fab | 104 | struct annotation *notes; |
439d473b | 105 | struct map *map; |
36532461 | 106 | int err = -1; |
923c42c1 | 107 | |
ab81f3fd | 108 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
109 | return -1; |
110 | ||
ab81f3fd ACM |
111 | sym = he->ms.sym; |
112 | map = he->ms.map; | |
b0a9ab62 ACM |
113 | |
114 | /* | |
115 | * We can't annotate with just /proc/kallsyms | |
116 | */ | |
bbb7f846 AH |
117 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
118 | !dso__is_kcore(map->dso)) { | |
ce6f4fab ACM |
119 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
120 | "path\n", sym->name); | |
121 | sleep(1); | |
b0a9ab62 | 122 | return -1; |
b269876c ACM |
123 | } |
124 | ||
ce6f4fab ACM |
125 | notes = symbol__annotation(sym); |
126 | if (notes->src != NULL) { | |
127 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
128 | goto out_assign; |
129 | } | |
923c42c1 | 130 | |
ce6f4fab | 131 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 132 | |
d04b35f8 | 133 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 134 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
135 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
136 | sym->name); | |
ce6f4fab | 137 | sleep(1); |
c97cf422 | 138 | return err; |
923c42c1 | 139 | } |
36532461 | 140 | |
5449f13c | 141 | err = symbol__annotate(sym, map, evsel, 0, NULL); |
36532461 | 142 | if (err == 0) { |
923c42c1 | 143 | out_assign: |
1758af10 | 144 | top->sym_filter_entry = he; |
ee51d851 ACM |
145 | } else { |
146 | char msg[BUFSIZ]; | |
147 | symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); | |
148 | pr_err("Couldn't annotate %s: %s\n", sym->name, msg); | |
36532461 | 149 | } |
c97cf422 | 150 | |
ce6f4fab | 151 | pthread_mutex_unlock(¬es->lock); |
36532461 | 152 | return err; |
923c42c1 MG |
153 | } |
154 | ||
ab81f3fd | 155 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 156 | { |
ab81f3fd | 157 | struct symbol *sym = he->ms.sym; |
36532461 | 158 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
159 | } |
160 | ||
31d68e7b ACM |
161 | static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) |
162 | { | |
163 | struct utsname uts; | |
164 | int err = uname(&uts); | |
165 | ||
166 | ui__warning("Out of bounds address found:\n\n" | |
167 | "Addr: %" PRIx64 "\n" | |
168 | "DSO: %s %c\n" | |
169 | "Map: %" PRIx64 "-%" PRIx64 "\n" | |
170 | "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" | |
171 | "Arch: %s\n" | |
172 | "Kernel: %s\n" | |
173 | "Tools: %s\n\n" | |
174 | "Not all samples will be on the annotation output.\n\n" | |
175 | "Please report to linux-kernel@vger.kernel.org\n", | |
176 | ip, map->dso->long_name, dso__symtab_origin(map->dso), | |
177 | map->start, map->end, sym->start, sym->end, | |
178 | sym->binding == STB_GLOBAL ? 'g' : | |
179 | sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, | |
180 | err ? "[unknown]" : uts.machine, | |
181 | err ? "[unknown]" : uts.release, perf_version_string); | |
182 | if (use_browser <= 0) | |
183 | sleep(5); | |
48000a1a | 184 | |
31d68e7b ACM |
185 | map->erange_warned = true; |
186 | } | |
187 | ||
1758af10 ACM |
188 | static void perf_top__record_precise_ip(struct perf_top *top, |
189 | struct hist_entry *he, | |
bab89f6a | 190 | struct perf_sample *sample, |
1758af10 | 191 | int counter, u64 ip) |
923c42c1 | 192 | { |
ce6f4fab | 193 | struct annotation *notes; |
beefb8d0 | 194 | struct symbol *sym = he->ms.sym; |
48c65bda | 195 | int err = 0; |
ce6f4fab | 196 | |
beefb8d0 NK |
197 | if (sym == NULL || (use_browser == 0 && |
198 | (top->sym_filter_entry == NULL || | |
199 | top->sym_filter_entry->ms.sym != sym))) | |
923c42c1 MG |
200 | return; |
201 | ||
ce6f4fab ACM |
202 | notes = symbol__annotation(sym); |
203 | ||
204 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
205 | return; |
206 | ||
bab89f6a | 207 | err = hist_entry__inc_addr_samples(he, sample, counter, ip); |
c7ad21af | 208 | |
ce6f4fab | 209 | pthread_mutex_unlock(¬es->lock); |
31d68e7b | 210 | |
151ee834 NK |
211 | if (unlikely(err)) { |
212 | /* | |
213 | * This function is now called with he->hists->lock held. | |
214 | * Release it before going to sleep. | |
215 | */ | |
216 | pthread_mutex_unlock(&he->hists->lock); | |
217 | ||
218 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
219 | ui__warn_map_erange(he->ms.map, sym, ip); | |
220 | else if (err == -ENOMEM) { | |
221 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
222 | sym->name); | |
223 | sleep(1); | |
224 | } | |
225 | ||
226 | pthread_mutex_lock(&he->hists->lock); | |
b66d8c0c | 227 | } |
923c42c1 MG |
228 | } |
229 | ||
1758af10 | 230 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 231 | { |
1758af10 | 232 | struct hist_entry *he = top->sym_filter_entry; |
f681d593 | 233 | struct perf_evsel *evsel = hists_to_evsel(he->hists); |
ce6f4fab | 234 | struct annotation *notes; |
923c42c1 | 235 | struct symbol *symbol; |
36532461 | 236 | int more; |
923c42c1 | 237 | |
ab81f3fd | 238 | if (!he) |
923c42c1 MG |
239 | return; |
240 | ||
ab81f3fd | 241 | symbol = he->ms.sym; |
ce6f4fab ACM |
242 | notes = symbol__annotation(symbol); |
243 | ||
244 | pthread_mutex_lock(¬es->lock); | |
245 | ||
f681d593 JO |
246 | symbol__calc_percent(symbol, evsel); |
247 | ||
ce6f4fab ACM |
248 | if (notes->src == NULL) |
249 | goto out_unlock; | |
923c42c1 | 250 | |
7289f83c | 251 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 252 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 253 | |
db8fd07a | 254 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 | 255 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
5d484f99 ACM |
256 | |
257 | if (top->evlist->enabled) { | |
258 | if (top->zero) | |
259 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
260 | else | |
261 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); | |
262 | } | |
36532461 | 263 | if (more != 0) |
923c42c1 | 264 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
265 | out_unlock: |
266 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 267 | } |
07800601 | 268 | |
1758af10 | 269 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 270 | { |
8c3e10eb ACM |
271 | char bf[160]; |
272 | int printed = 0; | |
1758af10 | 273 | const int win_width = top->winsize.ws_col - 1; |
452ce03b JO |
274 | struct perf_evsel *evsel = top->sym_evsel; |
275 | struct hists *hists = evsel__hists(evsel); | |
d94b9430 | 276 | |
0f5486b5 | 277 | puts(CONSOLE_CLEAR); |
07800601 | 278 | |
1758af10 | 279 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 280 | printf("%s\n", bf); |
07800601 | 281 | |
1758af10 | 282 | perf_top__reset_sample_counters(top); |
07800601 | 283 | |
1a105f74 | 284 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 285 | |
a1ff5b05 KL |
286 | if (!top->record_opts.overwrite && |
287 | (hists->stats.nr_lost_warned != | |
288 | hists->stats.nr_events[PERF_RECORD_LOST])) { | |
4ea062ed ACM |
289 | hists->stats.nr_lost_warned = |
290 | hists->stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
291 | color_fprintf(stdout, PERF_COLOR_RED, |
292 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
4ea062ed | 293 | hists->stats.nr_lost_warned); |
ab81f3fd | 294 | ++printed; |
93fc64f1 ACM |
295 | } |
296 | ||
1758af10 ACM |
297 | if (top->sym_filter_entry) { |
298 | perf_top__show_details(top); | |
923c42c1 MG |
299 | return; |
300 | } | |
301 | ||
5d484f99 ACM |
302 | if (top->evlist->enabled) { |
303 | if (top->zero) { | |
304 | hists__delete_entries(hists); | |
305 | } else { | |
306 | hists__decay_entries(hists, top->hide_user_symbols, | |
307 | top->hide_kernel_symbols); | |
308 | } | |
701937bd NK |
309 | } |
310 | ||
4ea062ed | 311 | hists__collapse_resort(hists, NULL); |
452ce03b | 312 | perf_evsel__output_resort(evsel, NULL); |
701937bd | 313 | |
4ea062ed | 314 | hists__output_recalc_col_len(hists, top->print_entries - printed); |
7cc017ed | 315 | putchar('\n'); |
4ea062ed | 316 | hists__fprintf(hists, false, top->print_entries - printed, win_width, |
d05e3aae | 317 | top->min_percent, stdout, symbol_conf.use_callchain); |
07800601 IM |
318 | } |
319 | ||
923c42c1 MG |
320 | static void prompt_integer(int *target, const char *msg) |
321 | { | |
322 | char *buf = malloc(0), *p; | |
323 | size_t dummy = 0; | |
324 | int tmp; | |
325 | ||
326 | fprintf(stdout, "\n%s: ", msg); | |
327 | if (getline(&buf, &dummy, stdin) < 0) | |
328 | return; | |
329 | ||
330 | p = strchr(buf, '\n'); | |
331 | if (p) | |
332 | *p = 0; | |
333 | ||
334 | p = buf; | |
335 | while(*p) { | |
336 | if (!isdigit(*p)) | |
337 | goto out_free; | |
338 | p++; | |
339 | } | |
340 | tmp = strtoul(buf, NULL, 10); | |
341 | *target = tmp; | |
342 | out_free: | |
343 | free(buf); | |
344 | } | |
345 | ||
346 | static void prompt_percent(int *target, const char *msg) | |
347 | { | |
348 | int tmp = 0; | |
349 | ||
350 | prompt_integer(&tmp, msg); | |
351 | if (tmp >= 0 && tmp <= 100) | |
352 | *target = tmp; | |
353 | } | |
354 | ||
1758af10 | 355 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
356 | { |
357 | char *buf = malloc(0), *p; | |
1758af10 | 358 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
4ea062ed | 359 | struct hists *hists = evsel__hists(top->sym_evsel); |
ab81f3fd | 360 | struct rb_node *next; |
923c42c1 MG |
361 | size_t dummy = 0; |
362 | ||
363 | /* zero counters of active symbol */ | |
364 | if (syme) { | |
923c42c1 | 365 | __zero_source_counters(syme); |
1758af10 | 366 | top->sym_filter_entry = NULL; |
923c42c1 MG |
367 | } |
368 | ||
369 | fprintf(stdout, "\n%s: ", msg); | |
370 | if (getline(&buf, &dummy, stdin) < 0) | |
371 | goto out_free; | |
372 | ||
373 | p = strchr(buf, '\n'); | |
374 | if (p) | |
375 | *p = 0; | |
376 | ||
4ea062ed | 377 | next = rb_first(&hists->entries); |
ab81f3fd ACM |
378 | while (next) { |
379 | n = rb_entry(next, struct hist_entry, rb_node); | |
380 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
381 | found = n; | |
923c42c1 MG |
382 | break; |
383 | } | |
ab81f3fd | 384 | next = rb_next(&n->rb_node); |
923c42c1 MG |
385 | } |
386 | ||
387 | if (!found) { | |
66aeb6d5 | 388 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 389 | sleep(1); |
923c42c1 | 390 | } else |
1758af10 | 391 | perf_top__parse_source(top, found); |
923c42c1 MG |
392 | |
393 | out_free: | |
394 | free(buf); | |
395 | } | |
396 | ||
1758af10 | 397 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 398 | { |
091bd2e9 MG |
399 | char *name = NULL; |
400 | ||
1758af10 ACM |
401 | if (top->sym_filter_entry) { |
402 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
403 | name = sym->name; |
404 | } | |
405 | ||
406 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
407 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
408 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 409 | |
1758af10 | 410 | if (top->evlist->nr_entries > 1) |
7289f83c | 411 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 412 | |
1758af10 | 413 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 414 | |
1758af10 | 415 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
416 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
417 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 418 | |
8ffcda17 | 419 | fprintf(stdout, |
8fce3743 | 420 | "\t[K] hide kernel symbols. \t(%s)\n", |
1758af10 | 421 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
422 | fprintf(stdout, |
423 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
424 | top->hide_user_symbols ? "yes" : "no"); |
425 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
426 | fprintf(stdout, "\t[qQ] quit.\n"); |
427 | } | |
428 | ||
1758af10 | 429 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
430 | { |
431 | switch (c) { | |
432 | case 'd': | |
433 | case 'e': | |
434 | case 'f': | |
435 | case 'z': | |
436 | case 'q': | |
437 | case 'Q': | |
8ffcda17 ACM |
438 | case 'K': |
439 | case 'U': | |
6cff0e8d KS |
440 | case 'F': |
441 | case 's': | |
442 | case 'S': | |
091bd2e9 MG |
443 | return 1; |
444 | case 'E': | |
1758af10 | 445 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
446 | default: |
447 | break; | |
091bd2e9 MG |
448 | } |
449 | ||
450 | return 0; | |
923c42c1 MG |
451 | } |
452 | ||
11859e82 | 453 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 454 | { |
11859e82 ACM |
455 | bool ret = true; |
456 | ||
1758af10 | 457 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 | 458 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
3969cc09 | 459 | struct termios save; |
091bd2e9 | 460 | |
1758af10 | 461 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
462 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
463 | fflush(stdout); | |
464 | ||
3969cc09 | 465 | set_term_quiet_input(&save); |
091bd2e9 MG |
466 | |
467 | poll(&stdin_poll, 1, -1); | |
468 | c = getc(stdin); | |
469 | ||
470 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 471 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 472 | return ret; |
091bd2e9 MG |
473 | } |
474 | ||
923c42c1 MG |
475 | switch (c) { |
476 | case 'd': | |
1758af10 ACM |
477 | prompt_integer(&top->delay_secs, "Enter display delay"); |
478 | if (top->delay_secs < 1) | |
479 | top->delay_secs = 1; | |
923c42c1 MG |
480 | break; |
481 | case 'e': | |
1758af10 ACM |
482 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
483 | if (top->print_entries == 0) { | |
b135e5ee | 484 | perf_top__resize(top); |
244a1086 | 485 | signal(SIGWINCH, winch_sig); |
509605db | 486 | } else { |
3b6ed988 | 487 | signal(SIGWINCH, SIG_DFL); |
509605db | 488 | } |
923c42c1 MG |
489 | break; |
490 | case 'E': | |
1758af10 | 491 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
492 | /* Select 0 as the default event: */ |
493 | int counter = 0; | |
494 | ||
923c42c1 | 495 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 496 | |
e5cadb93 | 497 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
7289f83c | 498 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 499 | |
ec52d976 | 500 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 501 | |
1758af10 | 502 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 503 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 504 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 505 | sleep(1); |
69aad6f1 | 506 | break; |
923c42c1 | 507 | } |
e5cadb93 | 508 | evlist__for_each_entry(top->evlist, top->sym_evsel) |
1758af10 | 509 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 510 | break; |
ec52d976 | 511 | } else |
0c21f736 | 512 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
513 | break; |
514 | case 'f': | |
1758af10 | 515 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
516 | break; |
517 | case 'F': | |
1758af10 ACM |
518 | prompt_percent(&top->sym_pcnt_filter, |
519 | "Enter details display event filter (percent)"); | |
923c42c1 | 520 | break; |
8ffcda17 | 521 | case 'K': |
1758af10 | 522 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 523 | break; |
923c42c1 MG |
524 | case 'q': |
525 | case 'Q': | |
526 | printf("exiting.\n"); | |
1758af10 ACM |
527 | if (top->dump_symtab) |
528 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
529 | ret = false; |
530 | break; | |
923c42c1 | 531 | case 's': |
1758af10 | 532 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
533 | break; |
534 | case 'S': | |
1758af10 | 535 | if (!top->sym_filter_entry) |
923c42c1 MG |
536 | break; |
537 | else { | |
1758af10 | 538 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 539 | |
1758af10 | 540 | top->sym_filter_entry = NULL; |
923c42c1 | 541 | __zero_source_counters(syme); |
923c42c1 MG |
542 | } |
543 | break; | |
8ffcda17 | 544 | case 'U': |
1758af10 | 545 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 546 | break; |
923c42c1 | 547 | case 'z': |
1758af10 | 548 | top->zero = !top->zero; |
923c42c1 | 549 | break; |
83a0944f IM |
550 | default: |
551 | break; | |
923c42c1 | 552 | } |
11859e82 ACM |
553 | |
554 | return ret; | |
923c42c1 MG |
555 | } |
556 | ||
ab81f3fd ACM |
557 | static void perf_top__sort_new_samples(void *arg) |
558 | { | |
559 | struct perf_top *t = arg; | |
452ce03b | 560 | struct perf_evsel *evsel = t->sym_evsel; |
4ea062ed ACM |
561 | struct hists *hists; |
562 | ||
ab81f3fd ACM |
563 | perf_top__reset_sample_counters(t); |
564 | ||
565 | if (t->evlist->selected != NULL) | |
566 | t->sym_evsel = t->evlist->selected; | |
567 | ||
452ce03b | 568 | hists = evsel__hists(evsel); |
4ea062ed | 569 | |
5d484f99 ACM |
570 | if (t->evlist->enabled) { |
571 | if (t->zero) { | |
572 | hists__delete_entries(hists); | |
573 | } else { | |
574 | hists__decay_entries(hists, t->hide_user_symbols, | |
575 | t->hide_kernel_symbols); | |
576 | } | |
701937bd NK |
577 | } |
578 | ||
4ea062ed | 579 | hists__collapse_resort(hists, NULL); |
452ce03b | 580 | perf_evsel__output_resort(evsel, NULL); |
ab81f3fd ACM |
581 | } |
582 | ||
1758af10 | 583 | static void *display_thread_tui(void *arg) |
c0443df1 | 584 | { |
0d37aa34 | 585 | struct perf_evsel *pos; |
1758af10 | 586 | struct perf_top *top = arg; |
ab81f3fd | 587 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
588 | struct hist_browser_timer hbt = { |
589 | .timer = perf_top__sort_new_samples, | |
590 | .arg = top, | |
591 | .refresh = top->delay_secs, | |
592 | }; | |
ab81f3fd | 593 | |
868a8329 KJ |
594 | /* In order to read symbols from other namespaces perf to needs to call |
595 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
596 | * unshare(2) the fs so that we may continue to setns into namespaces | |
597 | * that we're observing. | |
598 | */ | |
599 | unshare(CLONE_FS); | |
600 | ||
1758af10 | 601 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
602 | |
603 | /* | |
604 | * Initialize the uid_filter_str, in the future the TUI will allow | |
605 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
606 | * via --uid. | |
607 | */ | |
e5cadb93 | 608 | evlist__for_each_entry(top->evlist, pos) { |
4ea062ed ACM |
609 | struct hists *hists = evsel__hists(pos); |
610 | hists->uid_filter_str = top->record_opts.target.uid_str; | |
611 | } | |
0d37aa34 | 612 | |
13d1e536 NK |
613 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, |
614 | top->min_percent, | |
a1ff5b05 KL |
615 | &top->session->header.env, |
616 | !top->record_opts.overwrite); | |
ab81f3fd | 617 | |
11859e82 | 618 | done = 1; |
c0443df1 ACM |
619 | return NULL; |
620 | } | |
621 | ||
4a1a9971 JO |
622 | static void display_sig(int sig __maybe_unused) |
623 | { | |
624 | done = 1; | |
625 | } | |
626 | ||
627 | static void display_setup_sig(void) | |
628 | { | |
09f4d78a ACM |
629 | signal(SIGSEGV, sighandler_dump_stack); |
630 | signal(SIGFPE, sighandler_dump_stack); | |
4a1a9971 JO |
631 | signal(SIGINT, display_sig); |
632 | signal(SIGQUIT, display_sig); | |
633 | signal(SIGTERM, display_sig); | |
634 | } | |
635 | ||
1758af10 | 636 | static void *display_thread(void *arg) |
07800601 | 637 | { |
0f5486b5 | 638 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
9398c484 | 639 | struct termios save; |
1758af10 | 640 | struct perf_top *top = arg; |
923c42c1 MG |
641 | int delay_msecs, c; |
642 | ||
868a8329 KJ |
643 | /* In order to read symbols from other namespaces perf to needs to call |
644 | * setns(2). This isn't permitted if the struct_fs has multiple users. | |
645 | * unshare(2) the fs so that we may continue to setns into namespaces | |
646 | * that we're observing. | |
647 | */ | |
648 | unshare(CLONE_FS); | |
649 | ||
4a1a9971 | 650 | display_setup_sig(); |
3af6e338 | 651 | pthread__unblock_sigwinch(); |
923c42c1 | 652 | repeat: |
b9c4b0f4 | 653 | delay_msecs = top->delay_secs * MSEC_PER_SEC; |
9398c484 | 654 | set_term_quiet_input(&save); |
923c42c1 MG |
655 | /* trash return*/ |
656 | getc(stdin); | |
07800601 | 657 | |
11859e82 | 658 | while (!done) { |
1758af10 | 659 | perf_top__print_sym_table(top); |
3af6e338 ACM |
660 | /* |
661 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
662 | * refresh screen in both cases. | |
663 | */ | |
664 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
665 | case 0: | |
666 | continue; | |
667 | case -1: | |
668 | if (errno == EINTR) | |
669 | continue; | |
7b0214b7 | 670 | __fallthrough; |
3af6e338 | 671 | default: |
11859e82 ACM |
672 | c = getc(stdin); |
673 | tcsetattr(0, TCSAFLUSH, &save); | |
674 | ||
675 | if (perf_top__handle_keypress(top, c)) | |
676 | goto repeat; | |
677 | done = 1; | |
3af6e338 ACM |
678 | } |
679 | } | |
07800601 | 680 | |
4a1a9971 | 681 | tcsetattr(0, TCSAFLUSH, &save); |
07800601 IM |
682 | return NULL; |
683 | } | |
684 | ||
7c50391f NK |
685 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
686 | struct addr_location *al, bool single, | |
687 | void *arg) | |
688 | { | |
689 | struct perf_top *top = arg; | |
690 | struct hist_entry *he = iter->he; | |
691 | struct perf_evsel *evsel = iter->evsel; | |
692 | ||
2e0453af | 693 | if (perf_hpp_list.sym && single) |
bab89f6a | 694 | perf_top__record_precise_ip(top, he, iter->sample, evsel->idx, al->addr); |
7c50391f | 695 | |
a18b027e AK |
696 | hist__account_cycles(iter->sample->branch_stack, al, iter->sample, |
697 | !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); | |
7c50391f NK |
698 | return 0; |
699 | } | |
700 | ||
1758af10 ACM |
701 | static void perf_event__process_sample(struct perf_tool *tool, |
702 | const union perf_event *event, | |
7b27509f | 703 | struct perf_evsel *evsel, |
8115d60c | 704 | struct perf_sample *sample, |
743eb868 | 705 | struct machine *machine) |
07800601 | 706 | { |
1758af10 | 707 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
1ed091c4 | 708 | struct addr_location al; |
19d4ac3c | 709 | int err; |
5b2bb75a | 710 | |
23346f21 | 711 | if (!machine && perf_guest) { |
6b118e92 DA |
712 | static struct intlist *seen; |
713 | ||
714 | if (!seen) | |
ffe0fb76 | 715 | seen = intlist__new(NULL); |
6b118e92 | 716 | |
ef89325f | 717 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 718 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
719 | sample->pid); |
720 | intlist__add(seen, sample->pid); | |
6b118e92 | 721 | } |
a1645ce1 ZY |
722 | return; |
723 | } | |
724 | ||
0c095715 | 725 | if (!machine) { |
11859e82 | 726 | pr_err("%u unprocessable samples recorded.\r", |
75be989a | 727 | top->session->evlist->stats.nr_unprocessable_samples++); |
0c095715 JR |
728 | return; |
729 | } | |
730 | ||
8115d60c | 731 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 732 | top->exact_samples++; |
1676b8a0 | 733 | |
bb3eb566 | 734 | if (machine__resolve(machine, &al, sample) < 0) |
1ed091c4 | 735 | return; |
07800601 | 736 | |
e77a0742 | 737 | if (!machine->kptr_restrict_warned && |
5f6f5580 ACM |
738 | symbol_conf.kptr_restrict && |
739 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
b89a5124 ACM |
740 | if (!perf_evlist__exclude_kernel(top->session->evlist)) { |
741 | ui__warning( | |
5f6f5580 ACM |
742 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" |
743 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
744 | "Kernel%s samples will not be resolved.\n", | |
c6718350 | 745 | al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? |
5f6f5580 | 746 | " modules" : ""); |
b89a5124 ACM |
747 | if (use_browser <= 0) |
748 | sleep(5); | |
749 | } | |
e77a0742 | 750 | machine->kptr_restrict_warned = true; |
5f6f5580 ACM |
751 | } |
752 | ||
72b8fa17 | 753 | if (al.sym == NULL) { |
e4a338d0 | 754 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
755 | /* |
756 | * As we do lazy loading of symtabs we only will know if the | |
757 | * specified vmlinux file is invalid when we actually have a | |
758 | * hit in kernel space and then try to load it. So if we get | |
759 | * here and there are _no_ symbols in the DSO backing the | |
760 | * kernel map, bail out. | |
761 | * | |
762 | * We may never get here, for instance, if we use -K/ | |
763 | * --hide-kernel-symbols, even if the user specifies an | |
764 | * invalid --vmlinux ;-) | |
765 | */ | |
e77a0742 | 766 | if (!machine->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 767 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 768 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 | 769 | if (symbol_conf.vmlinux_name) { |
18425f13 ACM |
770 | char serr[256]; |
771 | dso__strerror_load(al.map->dso, serr, sizeof(serr)); | |
772 | ui__warning("The %s file can't be used: %s\n%s", | |
773 | symbol_conf.vmlinux_name, serr, msg); | |
e4a338d0 ACM |
774 | } else { |
775 | ui__warning("A vmlinux file was not found.\n%s", | |
776 | msg); | |
777 | } | |
778 | ||
779 | if (use_browser <= 0) | |
780 | sleep(5); | |
1758af10 | 781 | top->vmlinux_warned = true; |
72b8fa17 | 782 | } |
6cff0e8d KS |
783 | } |
784 | ||
b55cc4ed | 785 | if (al.sym == NULL || !al.sym->idle) { |
4ea062ed | 786 | struct hists *hists = evsel__hists(evsel); |
7c50391f | 787 | struct hist_entry_iter iter = { |
063bd936 NK |
788 | .evsel = evsel, |
789 | .sample = sample, | |
790 | .add_entry_cb = hist_iter__top_callback, | |
7c50391f | 791 | }; |
70db7533 | 792 | |
7c50391f NK |
793 | if (symbol_conf.cumulate_callchain) |
794 | iter.ops = &hist_iter_cumulative; | |
795 | else | |
796 | iter.ops = &hist_iter_normal; | |
19d4ac3c | 797 | |
4ea062ed | 798 | pthread_mutex_lock(&hists->lock); |
ab81f3fd | 799 | |
063bd936 | 800 | err = hist_entry_iter__add(&iter, &al, top->max_stack, top); |
7c50391f NK |
801 | if (err < 0) |
802 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
19d4ac3c | 803 | |
4ea062ed | 804 | pthread_mutex_unlock(&hists->lock); |
5b2bb75a | 805 | } |
ab81f3fd | 806 | |
b91fc39f | 807 | addr_location__put(&al); |
07800601 IM |
808 | } |
809 | ||
1758af10 | 810 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 811 | { |
ebebbf08 KL |
812 | struct record_opts *opts = &top->record_opts; |
813 | struct perf_evlist *evlist = top->evlist; | |
8d50e5b4 | 814 | struct perf_sample sample; |
7b27509f | 815 | struct perf_evsel *evsel; |
ebebbf08 | 816 | struct perf_mmap *md; |
1758af10 | 817 | struct perf_session *session = top->session; |
8115d60c | 818 | union perf_event *event; |
743eb868 | 819 | struct machine *machine; |
ebebbf08 | 820 | u64 end, start; |
5538beca | 821 | int ret; |
07800601 | 822 | |
ebebbf08 KL |
823 | md = opts->overwrite ? &evlist->overwrite_mmap[idx] : &evlist->mmap[idx]; |
824 | if (perf_mmap__read_init(md, opts->overwrite, &start, &end) < 0) | |
825 | return; | |
826 | ||
827 | while ((event = perf_mmap__read_event(md, opts->overwrite, &start, end)) != NULL) { | |
828 | ret = perf_evlist__parse_sample(evlist, event, &sample); | |
5538beca FW |
829 | if (ret) { |
830 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 831 | goto next_event; |
5538beca | 832 | } |
04391deb | 833 | |
1758af10 | 834 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
835 | assert(evsel != NULL); |
836 | ||
5b2bb75a | 837 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 838 | ++top->samples; |
743eb868 | 839 | |
473398a2 | 840 | switch (sample.cpumode) { |
743eb868 | 841 | case PERF_RECORD_MISC_USER: |
1758af10 ACM |
842 | ++top->us_samples; |
843 | if (top->hide_user_symbols) | |
8e50d384 | 844 | goto next_event; |
34ba5122 | 845 | machine = &session->machines.host; |
743eb868 ACM |
846 | break; |
847 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
848 | ++top->kernel_samples; |
849 | if (top->hide_kernel_symbols) | |
8e50d384 | 850 | goto next_event; |
34ba5122 | 851 | machine = &session->machines.host; |
743eb868 ACM |
852 | break; |
853 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 854 | ++top->guest_kernel_samples; |
ef89325f AH |
855 | machine = perf_session__find_machine(session, |
856 | sample.pid); | |
743eb868 ACM |
857 | break; |
858 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 859 | ++top->guest_us_samples; |
743eb868 ACM |
860 | /* |
861 | * TODO: we don't process guest user from host side | |
862 | * except simple counting. | |
863 | */ | |
8e50d384 | 864 | goto next_event; |
4b37af59 NK |
865 | default: |
866 | if (event->header.type == PERF_RECORD_SAMPLE) | |
867 | goto next_event; | |
868 | machine = &session->machines.host; | |
869 | break; | |
743eb868 ACM |
870 | } |
871 | ||
872 | ||
1758af10 ACM |
873 | if (event->header.type == PERF_RECORD_SAMPLE) { |
874 | perf_event__process_sample(&top->tool, event, evsel, | |
875 | &sample, machine); | |
876 | } else if (event->header.type < PERF_RECORD_MAX) { | |
4ea062ed | 877 | hists__inc_nr_events(evsel__hists(evsel), event->header.type); |
162f0bef | 878 | machine__process_event(machine, event, &sample); |
7b27509f | 879 | } else |
75be989a | 880 | ++session->evlist->stats.nr_unknown_events; |
8e50d384 | 881 | next_event: |
ebebbf08 | 882 | perf_mmap__consume(md, opts->overwrite); |
07800601 | 883 | } |
ebebbf08 KL |
884 | |
885 | perf_mmap__read_done(md); | |
07800601 IM |
886 | } |
887 | ||
1758af10 | 888 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 889 | { |
ebebbf08 KL |
890 | bool overwrite = top->record_opts.overwrite; |
891 | struct perf_evlist *evlist = top->evlist; | |
8cc42de7 | 892 | unsigned long long start, end; |
70db7533 ACM |
893 | int i; |
894 | ||
8cc42de7 | 895 | start = rdclock(); |
ebebbf08 KL |
896 | if (overwrite) |
897 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_DATA_PENDING); | |
898 | ||
1758af10 ACM |
899 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
900 | perf_top__mmap_read_idx(top, i); | |
ebebbf08 KL |
901 | |
902 | if (overwrite) { | |
903 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_EMPTY); | |
904 | perf_evlist__toggle_bkw_mmap(evlist, BKW_MMAP_RUNNING); | |
905 | } | |
8cc42de7 KL |
906 | end = rdclock(); |
907 | ||
908 | if ((end - start) > (unsigned long long)top->delay_secs * NSEC_PER_SEC) | |
909 | ui__warning("Too slow to read ring buffer.\n" | |
910 | "Please try increasing the period (-c) or\n" | |
911 | "decreasing the freq (-F) or\n" | |
912 | "limiting the number of CPUs (-C)\n"); | |
2f01190a FW |
913 | } |
914 | ||
63878a53 KL |
915 | /* |
916 | * Check per-event overwrite term. | |
917 | * perf top should support consistent term for all events. | |
918 | * - All events don't have per-event term | |
919 | * E.g. "cpu/cpu-cycles/,cpu/instructions/" | |
920 | * Nothing change, return 0. | |
921 | * - All events have same per-event term | |
922 | * E.g. "cpu/cpu-cycles,no-overwrite/,cpu/instructions,no-overwrite/ | |
923 | * Using the per-event setting to replace the opts->overwrite if | |
924 | * they are different, then return 0. | |
925 | * - Events have different per-event term | |
926 | * E.g. "cpu/cpu-cycles,overwrite/,cpu/instructions,no-overwrite/" | |
927 | * Return -1 | |
928 | * - Some of the event set per-event term, but some not. | |
929 | * E.g. "cpu/cpu-cycles/,cpu/instructions,no-overwrite/" | |
930 | * Return -1 | |
931 | */ | |
932 | static int perf_top__overwrite_check(struct perf_top *top) | |
933 | { | |
934 | struct record_opts *opts = &top->record_opts; | |
935 | struct perf_evlist *evlist = top->evlist; | |
936 | struct perf_evsel_config_term *term; | |
937 | struct list_head *config_terms; | |
938 | struct perf_evsel *evsel; | |
939 | int set, overwrite = -1; | |
940 | ||
941 | evlist__for_each_entry(evlist, evsel) { | |
942 | set = -1; | |
943 | config_terms = &evsel->config_terms; | |
944 | list_for_each_entry(term, config_terms, list) { | |
945 | if (term->type == PERF_EVSEL__CONFIG_TERM_OVERWRITE) | |
946 | set = term->val.overwrite ? 1 : 0; | |
947 | } | |
948 | ||
949 | /* no term for current and previous event (likely) */ | |
950 | if ((overwrite < 0) && (set < 0)) | |
951 | continue; | |
952 | ||
953 | /* has term for both current and previous event, compare */ | |
954 | if ((overwrite >= 0) && (set >= 0) && (overwrite != set)) | |
955 | return -1; | |
956 | ||
957 | /* no term for current event but has term for previous one */ | |
958 | if ((overwrite >= 0) && (set < 0)) | |
959 | return -1; | |
960 | ||
961 | /* has term for current event */ | |
962 | if ((overwrite < 0) && (set >= 0)) { | |
963 | /* if it's first event, set overwrite */ | |
964 | if (evsel == perf_evlist__first(evlist)) | |
965 | overwrite = set; | |
966 | else | |
967 | return -1; | |
968 | } | |
969 | } | |
970 | ||
971 | if ((overwrite >= 0) && (opts->overwrite != overwrite)) | |
972 | opts->overwrite = overwrite; | |
973 | ||
974 | return 0; | |
975 | } | |
976 | ||
204721d7 KL |
977 | static int perf_top_overwrite_fallback(struct perf_top *top, |
978 | struct perf_evsel *evsel) | |
979 | { | |
980 | struct record_opts *opts = &top->record_opts; | |
981 | struct perf_evlist *evlist = top->evlist; | |
982 | struct perf_evsel *counter; | |
983 | ||
984 | if (!opts->overwrite) | |
985 | return 0; | |
986 | ||
987 | /* only fall back when first event fails */ | |
988 | if (evsel != perf_evlist__first(evlist)) | |
989 | return 0; | |
990 | ||
991 | evlist__for_each_entry(evlist, counter) | |
992 | counter->attr.write_backward = false; | |
993 | opts->overwrite = false; | |
994 | ui__warning("fall back to non-overwrite mode\n"); | |
995 | return 1; | |
996 | } | |
997 | ||
11859e82 | 998 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 999 | { |
d6195a6a | 1000 | char msg[BUFSIZ]; |
6a4bb04c | 1001 | struct perf_evsel *counter; |
1758af10 | 1002 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 1003 | struct record_opts *opts = &top->record_opts; |
727ab04e | 1004 | |
63878a53 KL |
1005 | if (perf_top__overwrite_check(top)) { |
1006 | ui__error("perf top only support consistent per-event " | |
1007 | "overwrite setting for all events\n"); | |
1008 | goto out_err; | |
1009 | } | |
1010 | ||
e68ae9cf | 1011 | perf_evlist__config(evlist, opts, &callchain_param); |
7e4ff9e3 | 1012 | |
e5cadb93 | 1013 | evlist__for_each_entry(evlist, counter) { |
72cb7013 | 1014 | try_again: |
1758af10 | 1015 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 1016 | top->evlist->threads) < 0) { |
204721d7 KL |
1017 | |
1018 | /* | |
1019 | * Specially handle overwrite fall back. | |
1020 | * Because perf top is the only tool which has | |
1021 | * overwrite mode by default, support | |
1022 | * both overwrite and non-overwrite mode, and | |
1023 | * require consistent mode for all events. | |
1024 | * | |
1025 | * May move it to generic code with more tools | |
1026 | * have similar attribute. | |
1027 | */ | |
1028 | if (perf_missing_features.write_backward && | |
1029 | perf_top_overwrite_fallback(top, counter)) | |
1030 | goto try_again; | |
1031 | ||
56e52e85 | 1032 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
bb963e16 | 1033 | if (verbose > 0) |
c0a54341 | 1034 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
1035 | goto try_again; |
1036 | } | |
c286c419 | 1037 | |
56e52e85 ACM |
1038 | perf_evsel__open_strerror(counter, &opts->target, |
1039 | errno, msg, sizeof(msg)); | |
1040 | ui__error("%s\n", msg); | |
c286c419 | 1041 | goto out_err; |
d6d901c2 | 1042 | } |
716c69fe | 1043 | } |
70db7533 | 1044 | |
f74b9d3a | 1045 | if (perf_evlist__mmap(evlist, opts->mmap_pages) < 0) { |
3780f488 | 1046 | ui__error("Failed to mmap with %d (%s)\n", |
c8b5f2c9 | 1047 | errno, str_error_r(errno, msg, sizeof(msg))); |
c286c419 ACM |
1048 | goto out_err; |
1049 | } | |
1050 | ||
11859e82 | 1051 | return 0; |
c286c419 ACM |
1052 | |
1053 | out_err: | |
11859e82 | 1054 | return -1; |
716c69fe IM |
1055 | } |
1056 | ||
e3815264 | 1057 | static int callchain_param__setup_sample_type(struct callchain_param *callchain) |
19d4ac3c | 1058 | { |
2e0453af | 1059 | if (!perf_hpp_list.sym) { |
e3815264 | 1060 | if (callchain->enabled) { |
3780f488 | 1061 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
1062 | return -EINVAL; |
1063 | } | |
e3815264 ACM |
1064 | } else if (callchain->mode != CHAIN_NONE) { |
1065 | if (callchain_register_param(callchain) < 0) { | |
3780f488 | 1066 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
1067 | return -EINVAL; |
1068 | } | |
1069 | } | |
1070 | ||
1071 | return 0; | |
1072 | } | |
1073 | ||
1758af10 | 1074 | static int __cmd_top(struct perf_top *top) |
716c69fe | 1075 | { |
5d8bb1ec MP |
1076 | char msg[512]; |
1077 | struct perf_evsel *pos; | |
1078 | struct perf_evsel_config_term *err_term; | |
1079 | struct perf_evlist *evlist = top->evlist; | |
b4006796 | 1080 | struct record_opts *opts = &top->record_opts; |
716c69fe | 1081 | pthread_t thread; |
19d4ac3c | 1082 | int ret; |
f5fc1412 | 1083 | |
6a4d98d7 | 1084 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 1085 | if (top->session == NULL) |
52e02834 | 1086 | return -1; |
07800601 | 1087 | |
0d3942db | 1088 | if (!objdump_path) { |
eebd0bfc | 1089 | ret = perf_env__lookup_objdump(&top->session->header.env); |
0d3942db SB |
1090 | if (ret) |
1091 | goto out_delete; | |
1092 | } | |
1093 | ||
e3815264 | 1094 | ret = callchain_param__setup_sample_type(&callchain_param); |
19d4ac3c ACM |
1095 | if (ret) |
1096 | goto out_delete; | |
1097 | ||
9d8b172f | 1098 | if (perf_session__register_idle_thread(top->session) < 0) |
c53d138d NK |
1099 | goto out_delete; |
1100 | ||
0c6b4994 KL |
1101 | if (top->nr_threads_synthesize > 1) |
1102 | perf_set_multithreaded(); | |
340b47f5 | 1103 | |
a33fbd56 | 1104 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
340b47f5 KL |
1105 | top->evlist->threads, false, |
1106 | opts->proc_map_timeout, | |
0c6b4994 | 1107 | top->nr_threads_synthesize); |
340b47f5 | 1108 | |
0c6b4994 KL |
1109 | if (top->nr_threads_synthesize > 1) |
1110 | perf_set_singlethreaded(); | |
2e7ea3ab | 1111 | |
35a634f7 | 1112 | if (perf_hpp_list.socket) { |
2e7ea3ab KL |
1113 | ret = perf_env__read_cpu_topology_map(&perf_env); |
1114 | if (ret < 0) | |
1115 | goto out_err_cpu_topo; | |
1116 | } | |
1117 | ||
11859e82 ACM |
1118 | ret = perf_top__start_counters(top); |
1119 | if (ret) | |
1120 | goto out_delete; | |
1121 | ||
5d8bb1ec MP |
1122 | ret = perf_evlist__apply_drv_configs(evlist, &pos, &err_term); |
1123 | if (ret) { | |
62d94b00 | 1124 | pr_err("failed to set config \"%s\" on event %s with %d (%s)\n", |
5d8bb1ec MP |
1125 | err_term->val.drv_cfg, perf_evsel__name(pos), errno, |
1126 | str_error_r(errno, msg, sizeof(msg))); | |
1127 | goto out_delete; | |
1128 | } | |
1129 | ||
1758af10 | 1130 | top->session->evlist = top->evlist; |
7b56cce2 | 1131 | perf_session__set_id_hdr_size(top->session); |
07800601 | 1132 | |
2376c67a ACM |
1133 | /* |
1134 | * When perf is starting the traced process, all the events (apart from | |
1135 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
1136 | * prematurely enabling them. | |
1137 | * | |
1138 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
1139 | * so leave the check here. | |
1140 | */ | |
602ad878 | 1141 | if (!target__none(&opts->target)) |
2376c67a ACM |
1142 | perf_evlist__enable(top->evlist); |
1143 | ||
2f01190a | 1144 | /* Wait for a minimal set of events before starting the snapshot */ |
f66a889d | 1145 | perf_evlist__poll(top->evlist, 100); |
2f01190a | 1146 | |
1758af10 | 1147 | perf_top__mmap_read(top); |
2f01190a | 1148 | |
11859e82 | 1149 | ret = -1; |
c0443df1 | 1150 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 1151 | display_thread), top)) { |
3780f488 | 1152 | ui__error("Could not create display thread.\n"); |
11859e82 | 1153 | goto out_delete; |
07800601 IM |
1154 | } |
1155 | ||
1758af10 | 1156 | if (top->realtime_prio) { |
07800601 IM |
1157 | struct sched_param param; |
1158 | ||
1758af10 | 1159 | param.sched_priority = top->realtime_prio; |
07800601 | 1160 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 1161 | ui__error("Could not set realtime priority.\n"); |
ae256fa2 | 1162 | goto out_join; |
07800601 IM |
1163 | } |
1164 | } | |
1165 | ||
11859e82 | 1166 | while (!done) { |
1758af10 | 1167 | u64 hits = top->samples; |
07800601 | 1168 | |
1758af10 | 1169 | perf_top__mmap_read(top); |
07800601 | 1170 | |
ebebbf08 | 1171 | if (opts->overwrite || (hits == top->samples)) |
f66a889d | 1172 | ret = perf_evlist__poll(top->evlist, 100); |
b135e5ee JO |
1173 | |
1174 | if (resize) { | |
1175 | perf_top__resize(top); | |
1176 | resize = 0; | |
1177 | } | |
07800601 IM |
1178 | } |
1179 | ||
11859e82 | 1180 | ret = 0; |
ae256fa2 JO |
1181 | out_join: |
1182 | pthread_join(thread, NULL); | |
19d4ac3c | 1183 | out_delete: |
1758af10 ACM |
1184 | perf_session__delete(top->session); |
1185 | top->session = NULL; | |
19d4ac3c | 1186 | |
11859e82 | 1187 | return ret; |
2e7ea3ab KL |
1188 | |
1189 | out_err_cpu_topo: { | |
1190 | char errbuf[BUFSIZ]; | |
c8b5f2c9 | 1191 | const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); |
2e7ea3ab KL |
1192 | |
1193 | ui__error("Could not read the CPU topology map: %s\n", err); | |
1194 | goto out_delete; | |
1195 | } | |
19d4ac3c ACM |
1196 | } |
1197 | ||
1198 | static int | |
ae779a63 | 1199 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1200 | { |
19d4ac3c | 1201 | symbol_conf.use_callchain = true; |
ae779a63 JO |
1202 | return record_callchain_opt(opt, arg, unset); |
1203 | } | |
19d4ac3c | 1204 | |
ae779a63 JO |
1205 | static int |
1206 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
1207 | { | |
2ddd5c04 | 1208 | struct callchain_param *callchain = opt->value; |
a2c10d39 | 1209 | |
2ddd5c04 ACM |
1210 | callchain->enabled = !unset; |
1211 | callchain->record_mode = CALLCHAIN_FP; | |
a2c10d39 NK |
1212 | |
1213 | /* | |
1214 | * --no-call-graph | |
1215 | */ | |
1216 | if (unset) { | |
1217 | symbol_conf.use_callchain = false; | |
2ddd5c04 | 1218 | callchain->record_mode = CALLCHAIN_NONE; |
a2c10d39 NK |
1219 | return 0; |
1220 | } | |
1221 | ||
1222 | return parse_callchain_top_opt(arg); | |
07800601 | 1223 | } |
b456bae0 | 1224 | |
b8cbb349 | 1225 | static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) |
eb853e80 | 1226 | { |
eb853e80 | 1227 | if (!strcmp(var, "top.call-graph")) |
5a2e5e85 | 1228 | var = "call-graph.record-mode"; /* fall-through */ |
104ac991 NK |
1229 | if (!strcmp(var, "top.children")) { |
1230 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); | |
1231 | return 0; | |
1232 | } | |
eb853e80 | 1233 | |
b8cbb349 | 1234 | return 0; |
eb853e80 JO |
1235 | } |
1236 | ||
fa5df943 NK |
1237 | static int |
1238 | parse_percent_limit(const struct option *opt, const char *arg, | |
1239 | int unset __maybe_unused) | |
1240 | { | |
1241 | struct perf_top *top = opt->value; | |
1242 | ||
1243 | top->min_percent = strtof(arg, NULL); | |
1244 | return 0; | |
1245 | } | |
1246 | ||
76a26549 NK |
1247 | const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP |
1248 | "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; | |
a2c10d39 | 1249 | |
b0ad8ea6 | 1250 | int cmd_top(int argc, const char **argv) |
1758af10 | 1251 | { |
16ad2ffb | 1252 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1253 | struct perf_top top = { |
1254 | .count_filter = 5, | |
1255 | .delay_secs = 2, | |
2376c67a ACM |
1256 | .record_opts = { |
1257 | .mmap_pages = UINT_MAX, | |
1258 | .user_freq = UINT_MAX, | |
1259 | .user_interval = ULLONG_MAX, | |
1260 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1261 | .target = { |
2376c67a ACM |
1262 | .uses_mmap = true, |
1263 | }, | |
9d9cad76 | 1264 | .proc_map_timeout = 500, |
ebebbf08 | 1265 | .overwrite = 1, |
d1cb9fce | 1266 | }, |
4cb93446 | 1267 | .max_stack = sysctl_perf_event_max_stack, |
2376c67a | 1268 | .sym_pcnt_filter = 5, |
0c6b4994 | 1269 | .nr_threads_synthesize = UINT_MAX, |
1758af10 | 1270 | }; |
b4006796 | 1271 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1272 | struct target *target = &opts->target; |
1758af10 | 1273 | const struct option options[] = { |
8c3e10eb | 1274 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1275 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1276 | parse_events_option), |
2376c67a ACM |
1277 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1278 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1279 | "profile events on existing process id"), |
2376c67a | 1280 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1281 | "profile events on existing thread id"), |
2376c67a | 1282 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1283 | "system-wide collection from all CPUs"), |
2376c67a | 1284 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1285 | "list of cpus to monitor"), |
b32d133a ACM |
1286 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1287 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1288 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1289 | "don't load vmlinux even if found"), | |
8c3e10eb | 1290 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1291 | "hide kernel symbols"), |
994a1f78 JO |
1292 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1293 | "number of mmap data pages", | |
1294 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1295 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1296 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1297 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1298 | "number of seconds to delay between refreshes"), |
1758af10 | 1299 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1300 | "dump the symbol table used for profiling"), |
8c3e10eb | 1301 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1302 | "only display functions with more events than this"), |
bf80669e | 1303 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1304 | "put the counters into a counter group"), |
2376c67a ACM |
1305 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1306 | "child tasks do not inherit counters"), | |
1758af10 | 1307 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1308 | "symbol to annotate"), |
2376c67a ACM |
1309 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1310 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1311 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1312 | "display this many functions"), |
8c3e10eb | 1313 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1314 | "hide user symbols"), |
1758af10 ACM |
1315 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1316 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1317 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1318 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1319 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
a2ce067e NK |
1320 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1321 | " Please refer the man page for the complete list."), | |
6fe8c26d NK |
1322 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1323 | "output field(s): overhead, period, sample plus all of sort keys"), | |
ab81f3fd ACM |
1324 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1325 | "Show a column with the number of samples"), | |
2ddd5c04 | 1326 | OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, |
a2c10d39 | 1327 | NULL, "enables call-graph recording and display", |
ae779a63 | 1328 | &callchain_opt), |
2ddd5c04 | 1329 | OPT_CALLBACK(0, "call-graph", &callchain_param, |
76a26549 | 1330 | "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", |
a2c10d39 | 1331 | top_callchain_help, &parse_callchain_opt), |
1432ec34 NK |
1332 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1333 | "Accumulate callchains of children and show total overhead as well"), | |
5dbb6e81 WL |
1334 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1335 | "Set the maximum stack depth when parsing the callchain. " | |
4cb93446 | 1336 | "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), |
b21484f1 GP |
1337 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1338 | "ignore callees of these functions in call graphs", | |
1339 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1340 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1341 | "Show a column with the sum of periods"), | |
1342 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1343 | "only consider symbols in these dsos"), | |
1344 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1345 | "only consider symbols in these comms"), | |
1346 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1347 | "only consider these symbols"), | |
64c6f0c7 ACM |
1348 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1349 | "Interleave source code with assembly code (default)"), | |
1350 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1351 | "Display raw encoding of assembly instructions (default)"), | |
763122ad AK |
1352 | OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, |
1353 | "Enable kernel symbol demangling"), | |
0d3942db SB |
1354 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1355 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1356 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1357 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1358 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1359 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1360 | "Don't show entries under that percent", parse_percent_limit), | |
33db4568 NK |
1361 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1362 | "How to display percentage of filtered entries", parse_filter_percentage), | |
cf59002f NK |
1363 | OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, |
1364 | "width[,width...]", | |
1365 | "don't try to adjust column width, use these fixed values"), | |
9d9cad76 KL |
1366 | OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, |
1367 | "per thread proc mmap processing timeout in ms"), | |
a18b027e AK |
1368 | OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, |
1369 | "branch any", "sample any taken branches", | |
1370 | parse_branch_stack), | |
1371 | OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, | |
1372 | "branch filter mask", "branch stack filter modes", | |
1373 | parse_branch_stack), | |
053a3989 NK |
1374 | OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, |
1375 | "Show raw trace event output (do not use print fmt or plugins)"), | |
c92fcfde NK |
1376 | OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, |
1377 | "Show entries in a hierarchy"), | |
868a8329 | 1378 | OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"), |
0c6b4994 KL |
1379 | OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize, |
1380 | "number of thread to run event synthesize"), | |
b456bae0 | 1381 | OPT_END() |
1758af10 | 1382 | }; |
be772842 ACM |
1383 | const char * const top_usage[] = { |
1384 | "perf top [<options>]", | |
1385 | NULL | |
1386 | }; | |
a635fc51 ACM |
1387 | int status = hists__init(); |
1388 | ||
1389 | if (status < 0) | |
1390 | return status; | |
b456bae0 | 1391 | |
334fe7a3 | 1392 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1393 | if (top.evlist == NULL) |
361c99a6 ACM |
1394 | return -ENOMEM; |
1395 | ||
ecc4c561 ACM |
1396 | status = perf_config(perf_top_config, &top); |
1397 | if (status) | |
1398 | return status; | |
eb853e80 | 1399 | |
b456bae0 IM |
1400 | argc = parse_options(argc, argv, options, top_usage, 0); |
1401 | if (argc) | |
1402 | usage_with_options(top_usage, options); | |
1403 | ||
54f8f403 NK |
1404 | if (!top.evlist->nr_entries && |
1405 | perf_evlist__add_default(top.evlist) < 0) { | |
1406 | pr_err("Not enough memory for event selector list\n"); | |
1407 | goto out_delete_evlist; | |
1408 | } | |
1409 | ||
c92fcfde NK |
1410 | if (symbol_conf.report_hierarchy) { |
1411 | /* disable incompatible options */ | |
1412 | symbol_conf.event_group = false; | |
1413 | symbol_conf.cumulate_callchain = false; | |
1414 | ||
1415 | if (field_order) { | |
1416 | pr_err("Error: --hierarchy and --fields options cannot be used together\n"); | |
1417 | parse_options_usage(top_usage, options, "fields", 0); | |
1418 | parse_options_usage(NULL, options, "hierarchy", 0); | |
1419 | goto out_delete_evlist; | |
1420 | } | |
1421 | } | |
1422 | ||
512ae1bd | 1423 | sort__mode = SORT_MODE__TOP; |
6fe8c26d | 1424 | /* display thread wants entries to be collapsed in a different tree */ |
52225036 | 1425 | perf_hpp_list.need_collapse = 1; |
ab81f3fd | 1426 | |
3ee60c3b ACM |
1427 | if (top.use_stdio) |
1428 | use_browser = 0; | |
1429 | else if (top.use_tui) | |
1430 | use_browser = 1; | |
1431 | ||
1432 | setup_browser(false); | |
1433 | ||
40184c46 | 1434 | if (setup_sorting(top.evlist) < 0) { |
6fe8c26d NK |
1435 | if (sort_order) |
1436 | parse_options_usage(top_usage, options, "s", 1); | |
1437 | if (field_order) | |
1438 | parse_options_usage(sort_order ? NULL : top_usage, | |
1439 | options, "fields", 0); | |
d37a92dc NK |
1440 | goto out_delete_evlist; |
1441 | } | |
ab81f3fd | 1442 | |
602ad878 | 1443 | status = target__validate(target); |
16ad2ffb | 1444 | if (status) { |
602ad878 | 1445 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1446 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1447 | } |
1448 | ||
602ad878 | 1449 | status = target__parse_uid(target); |
16ad2ffb NK |
1450 | if (status) { |
1451 | int saved_errno = errno; | |
4bd0f2d2 | 1452 | |
602ad878 | 1453 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1454 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1455 | |
1456 | status = -saved_errno; | |
0d37aa34 | 1457 | goto out_delete_evlist; |
16ad2ffb | 1458 | } |
0d37aa34 | 1459 | |
602ad878 | 1460 | if (target__none(target)) |
2376c67a | 1461 | target->system_wide = true; |
10b47d54 | 1462 | |
f8a5c0b2 ACM |
1463 | if (perf_evlist__create_maps(top.evlist, target) < 0) { |
1464 | ui__error("Couldn't create thread/CPU maps: %s\n", | |
c8b5f2c9 | 1465 | errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); |
f8a5c0b2 | 1466 | goto out_delete_evlist; |
69aad6f1 | 1467 | } |
5a8e5a30 | 1468 | |
d04b35f8 ACM |
1469 | symbol_conf.nr_events = top.evlist->nr_entries; |
1470 | ||
8c3e10eb ACM |
1471 | if (top.delay_secs < 1) |
1472 | top.delay_secs = 1; | |
2f335a02 | 1473 | |
b4006796 | 1474 | if (record_opts__config(opts)) { |
2376c67a | 1475 | status = -EINVAL; |
03ad9747 | 1476 | goto out_delete_evlist; |
69aad6f1 ACM |
1477 | } |
1478 | ||
0c21f736 | 1479 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1480 | |
e3815264 | 1481 | if (!callchain_param.enabled) { |
1432ec34 NK |
1482 | symbol_conf.cumulate_callchain = false; |
1483 | perf_hpp__cancel_cumulate(); | |
1484 | } | |
1485 | ||
792aeafa NK |
1486 | if (symbol_conf.cumulate_callchain && !callchain_param.order_set) |
1487 | callchain_param.order = ORDER_CALLER; | |
1488 | ||
b01141f4 ACM |
1489 | status = symbol__annotation_init(); |
1490 | if (status < 0) | |
1491 | goto out_delete_evlist; | |
69aad6f1 ACM |
1492 | |
1493 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
0a7e6d1b | 1494 | if (symbol__init(NULL) < 0) |
69aad6f1 ACM |
1495 | return -1; |
1496 | ||
08e71542 | 1497 | sort__setup_elide(stdout); |
ab81f3fd | 1498 | |
1758af10 | 1499 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1500 | if (top.print_entries == 0) { |
1758af10 | 1501 | perf_top__update_print_entries(&top); |
244a1086 | 1502 | signal(SIGWINCH, winch_sig); |
3b6ed988 ACM |
1503 | } |
1504 | ||
1758af10 | 1505 | status = __cmd_top(&top); |
806fb630 | 1506 | |
0d37aa34 | 1507 | out_delete_evlist: |
8c3e10eb | 1508 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1509 | |
1510 | return status; | |
b456bae0 | 1511 | } |