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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; | |
48c65bda | 179 | int err = 0; |
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); |
48c65bda NK |
193 | |
194 | if (ui__has_annotation()) | |
195 | err = hist_entry__inc_addr_samples(he, counter, ip); | |
c7ad21af | 196 | |
ce6f4fab | 197 | pthread_mutex_unlock(¬es->lock); |
31d68e7b ACM |
198 | |
199 | if (err == -ERANGE && !he->ms.map->erange_warned) | |
200 | ui__warn_map_erange(he->ms.map, sym, ip); | |
b66d8c0c ACM |
201 | else if (err == -ENOMEM) { |
202 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
203 | sym->name); | |
204 | sleep(1); | |
205 | } | |
923c42c1 MG |
206 | } |
207 | ||
1758af10 | 208 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 209 | { |
1758af10 | 210 | struct hist_entry *he = top->sym_filter_entry; |
ce6f4fab | 211 | struct annotation *notes; |
923c42c1 | 212 | struct symbol *symbol; |
36532461 | 213 | int more; |
923c42c1 | 214 | |
ab81f3fd | 215 | if (!he) |
923c42c1 MG |
216 | return; |
217 | ||
ab81f3fd | 218 | symbol = he->ms.sym; |
ce6f4fab ACM |
219 | notes = symbol__annotation(symbol); |
220 | ||
221 | pthread_mutex_lock(¬es->lock); | |
222 | ||
223 | if (notes->src == NULL) | |
224 | goto out_unlock; | |
923c42c1 | 225 | |
7289f83c | 226 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
1758af10 | 227 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
923c42c1 | 228 | |
db8fd07a | 229 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
1758af10 ACM |
230 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
231 | if (top->zero) | |
232 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
36532461 | 233 | else |
1758af10 | 234 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); |
36532461 | 235 | if (more != 0) |
923c42c1 | 236 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
237 | out_unlock: |
238 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 239 | } |
07800601 | 240 | |
743eb868 ACM |
241 | static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, |
242 | struct addr_location *al, | |
243 | struct perf_sample *sample) | |
de04687f | 244 | { |
ab81f3fd ACM |
245 | struct hist_entry *he; |
246 | ||
27a0dcb7 | 247 | pthread_mutex_lock(&evsel->hists.lock); |
41a4e6e2 NK |
248 | he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, |
249 | sample->period, sample->weight, | |
250 | sample->transaction); | |
27a0dcb7 | 251 | pthread_mutex_unlock(&evsel->hists.lock); |
ab81f3fd ACM |
252 | if (he == NULL) |
253 | return NULL; | |
254 | ||
ab81f3fd | 255 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
1ab1fa5d NK |
256 | if (!he->filtered) |
257 | evsel->hists.stats.nr_non_filtered_samples++; | |
258 | ||
ab81f3fd | 259 | return he; |
de04687f | 260 | } |
07800601 | 261 | |
1758af10 | 262 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 263 | { |
8c3e10eb ACM |
264 | char bf[160]; |
265 | int printed = 0; | |
1758af10 | 266 | const int win_width = top->winsize.ws_col - 1; |
d94b9430 | 267 | |
0f5486b5 | 268 | puts(CONSOLE_CLEAR); |
07800601 | 269 | |
1758af10 | 270 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 271 | printf("%s\n", bf); |
07800601 | 272 | |
1758af10 | 273 | perf_top__reset_sample_counters(top); |
07800601 | 274 | |
1a105f74 | 275 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 276 | |
1758af10 ACM |
277 | if (top->sym_evsel->hists.stats.nr_lost_warned != |
278 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { | |
279 | top->sym_evsel->hists.stats.nr_lost_warned = | |
280 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
281 | color_fprintf(stdout, PERF_COLOR_RED, |
282 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
1758af10 | 283 | top->sym_evsel->hists.stats.nr_lost_warned); |
ab81f3fd | 284 | ++printed; |
93fc64f1 ACM |
285 | } |
286 | ||
1758af10 ACM |
287 | if (top->sym_filter_entry) { |
288 | perf_top__show_details(top); | |
923c42c1 MG |
289 | return; |
290 | } | |
291 | ||
c1fb5651 | 292 | hists__collapse_resort(&top->sym_evsel->hists, NULL); |
3a5714f8 NK |
293 | hists__output_resort(&top->sym_evsel->hists); |
294 | hists__decay_entries(&top->sym_evsel->hists, | |
295 | top->hide_user_symbols, | |
296 | top->hide_kernel_symbols); | |
1758af10 | 297 | hists__output_recalc_col_len(&top->sym_evsel->hists, |
933cbb1c | 298 | top->print_entries - printed); |
7cc017ed | 299 | putchar('\n'); |
41724e4c | 300 | hists__fprintf(&top->sym_evsel->hists, false, |
fa5df943 NK |
301 | top->print_entries - printed, win_width, |
302 | top->min_percent, stdout); | |
07800601 IM |
303 | } |
304 | ||
923c42c1 MG |
305 | static void prompt_integer(int *target, const char *msg) |
306 | { | |
307 | char *buf = malloc(0), *p; | |
308 | size_t dummy = 0; | |
309 | int tmp; | |
310 | ||
311 | fprintf(stdout, "\n%s: ", msg); | |
312 | if (getline(&buf, &dummy, stdin) < 0) | |
313 | return; | |
314 | ||
315 | p = strchr(buf, '\n'); | |
316 | if (p) | |
317 | *p = 0; | |
318 | ||
319 | p = buf; | |
320 | while(*p) { | |
321 | if (!isdigit(*p)) | |
322 | goto out_free; | |
323 | p++; | |
324 | } | |
325 | tmp = strtoul(buf, NULL, 10); | |
326 | *target = tmp; | |
327 | out_free: | |
328 | free(buf); | |
329 | } | |
330 | ||
331 | static void prompt_percent(int *target, const char *msg) | |
332 | { | |
333 | int tmp = 0; | |
334 | ||
335 | prompt_integer(&tmp, msg); | |
336 | if (tmp >= 0 && tmp <= 100) | |
337 | *target = tmp; | |
338 | } | |
339 | ||
1758af10 | 340 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
341 | { |
342 | char *buf = malloc(0), *p; | |
1758af10 | 343 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
ab81f3fd | 344 | struct rb_node *next; |
923c42c1 MG |
345 | size_t dummy = 0; |
346 | ||
347 | /* zero counters of active symbol */ | |
348 | if (syme) { | |
923c42c1 | 349 | __zero_source_counters(syme); |
1758af10 | 350 | top->sym_filter_entry = NULL; |
923c42c1 MG |
351 | } |
352 | ||
353 | fprintf(stdout, "\n%s: ", msg); | |
354 | if (getline(&buf, &dummy, stdin) < 0) | |
355 | goto out_free; | |
356 | ||
357 | p = strchr(buf, '\n'); | |
358 | if (p) | |
359 | *p = 0; | |
360 | ||
1758af10 | 361 | next = rb_first(&top->sym_evsel->hists.entries); |
ab81f3fd ACM |
362 | while (next) { |
363 | n = rb_entry(next, struct hist_entry, rb_node); | |
364 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
365 | found = n; | |
923c42c1 MG |
366 | break; |
367 | } | |
ab81f3fd | 368 | next = rb_next(&n->rb_node); |
923c42c1 MG |
369 | } |
370 | ||
371 | if (!found) { | |
66aeb6d5 | 372 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 | 373 | sleep(1); |
923c42c1 | 374 | } else |
1758af10 | 375 | perf_top__parse_source(top, found); |
923c42c1 MG |
376 | |
377 | out_free: | |
378 | free(buf); | |
379 | } | |
380 | ||
1758af10 | 381 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 382 | { |
091bd2e9 MG |
383 | char *name = NULL; |
384 | ||
1758af10 ACM |
385 | if (top->sym_filter_entry) { |
386 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
387 | name = sym->name; |
388 | } | |
389 | ||
390 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
391 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
392 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 393 | |
1758af10 | 394 | if (top->evlist->nr_entries > 1) |
7289f83c | 395 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
091bd2e9 | 396 | |
1758af10 | 397 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 398 | |
1758af10 | 399 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
400 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
401 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 402 | |
8ffcda17 | 403 | fprintf(stdout, |
1a72cfa6 | 404 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 405 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
406 | fprintf(stdout, |
407 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
408 | top->hide_user_symbols ? "yes" : "no"); |
409 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
410 | fprintf(stdout, "\t[qQ] quit.\n"); |
411 | } | |
412 | ||
1758af10 | 413 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
414 | { |
415 | switch (c) { | |
416 | case 'd': | |
417 | case 'e': | |
418 | case 'f': | |
419 | case 'z': | |
420 | case 'q': | |
421 | case 'Q': | |
8ffcda17 ACM |
422 | case 'K': |
423 | case 'U': | |
6cff0e8d KS |
424 | case 'F': |
425 | case 's': | |
426 | case 'S': | |
091bd2e9 MG |
427 | return 1; |
428 | case 'E': | |
1758af10 | 429 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
430 | default: |
431 | break; | |
091bd2e9 MG |
432 | } |
433 | ||
434 | return 0; | |
923c42c1 MG |
435 | } |
436 | ||
11859e82 | 437 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 438 | { |
11859e82 ACM |
439 | bool ret = true; |
440 | ||
1758af10 | 441 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 MG |
442 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
443 | struct termios tc, save; | |
444 | ||
1758af10 | 445 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
446 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
447 | fflush(stdout); | |
448 | ||
449 | tcgetattr(0, &save); | |
450 | tc = save; | |
451 | tc.c_lflag &= ~(ICANON | ECHO); | |
452 | tc.c_cc[VMIN] = 0; | |
453 | tc.c_cc[VTIME] = 0; | |
454 | tcsetattr(0, TCSANOW, &tc); | |
455 | ||
456 | poll(&stdin_poll, 1, -1); | |
457 | c = getc(stdin); | |
458 | ||
459 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 460 | if (!perf_top__key_mapped(top, c)) |
11859e82 | 461 | return ret; |
091bd2e9 MG |
462 | } |
463 | ||
923c42c1 MG |
464 | switch (c) { |
465 | case 'd': | |
1758af10 ACM |
466 | prompt_integer(&top->delay_secs, "Enter display delay"); |
467 | if (top->delay_secs < 1) | |
468 | top->delay_secs = 1; | |
923c42c1 MG |
469 | break; |
470 | case 'e': | |
1758af10 ACM |
471 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
472 | if (top->print_entries == 0) { | |
473 | struct sigaction act = { | |
474 | .sa_sigaction = perf_top__sig_winch, | |
475 | .sa_flags = SA_SIGINFO, | |
476 | }; | |
477 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
478 | sigaction(SIGWINCH, &act, NULL); | |
509605db | 479 | } else { |
3b6ed988 | 480 | signal(SIGWINCH, SIG_DFL); |
509605db | 481 | } |
923c42c1 MG |
482 | break; |
483 | case 'E': | |
1758af10 | 484 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
485 | /* Select 0 as the default event: */ |
486 | int counter = 0; | |
487 | ||
923c42c1 | 488 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 489 | |
0050f7aa | 490 | evlist__for_each(top->evlist, top->sym_evsel) |
7289f83c | 491 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
923c42c1 | 492 | |
ec52d976 | 493 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 494 | |
1758af10 | 495 | if (counter >= top->evlist->nr_entries) { |
0c21f736 | 496 | top->sym_evsel = perf_evlist__first(top->evlist); |
7289f83c | 497 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
923c42c1 | 498 | sleep(1); |
69aad6f1 | 499 | break; |
923c42c1 | 500 | } |
0050f7aa | 501 | evlist__for_each(top->evlist, top->sym_evsel) |
1758af10 | 502 | if (top->sym_evsel->idx == counter) |
69aad6f1 | 503 | break; |
ec52d976 | 504 | } else |
0c21f736 | 505 | top->sym_evsel = perf_evlist__first(top->evlist); |
923c42c1 MG |
506 | break; |
507 | case 'f': | |
1758af10 | 508 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
509 | break; |
510 | case 'F': | |
1758af10 ACM |
511 | prompt_percent(&top->sym_pcnt_filter, |
512 | "Enter details display event filter (percent)"); | |
923c42c1 | 513 | break; |
8ffcda17 | 514 | case 'K': |
1758af10 | 515 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 516 | break; |
923c42c1 MG |
517 | case 'q': |
518 | case 'Q': | |
519 | printf("exiting.\n"); | |
1758af10 ACM |
520 | if (top->dump_symtab) |
521 | perf_session__fprintf_dsos(top->session, stderr); | |
11859e82 ACM |
522 | ret = false; |
523 | break; | |
923c42c1 | 524 | case 's': |
1758af10 | 525 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
526 | break; |
527 | case 'S': | |
1758af10 | 528 | if (!top->sym_filter_entry) |
923c42c1 MG |
529 | break; |
530 | else { | |
1758af10 | 531 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 532 | |
1758af10 | 533 | top->sym_filter_entry = NULL; |
923c42c1 | 534 | __zero_source_counters(syme); |
923c42c1 MG |
535 | } |
536 | break; | |
8ffcda17 | 537 | case 'U': |
1758af10 | 538 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 539 | break; |
923c42c1 | 540 | case 'z': |
1758af10 | 541 | top->zero = !top->zero; |
923c42c1 | 542 | break; |
83a0944f IM |
543 | default: |
544 | break; | |
923c42c1 | 545 | } |
11859e82 ACM |
546 | |
547 | return ret; | |
923c42c1 MG |
548 | } |
549 | ||
ab81f3fd ACM |
550 | static void perf_top__sort_new_samples(void *arg) |
551 | { | |
552 | struct perf_top *t = arg; | |
553 | perf_top__reset_sample_counters(t); | |
554 | ||
555 | if (t->evlist->selected != NULL) | |
556 | t->sym_evsel = t->evlist->selected; | |
557 | ||
c1fb5651 | 558 | hists__collapse_resort(&t->sym_evsel->hists, NULL); |
3a5714f8 NK |
559 | hists__output_resort(&t->sym_evsel->hists); |
560 | hists__decay_entries(&t->sym_evsel->hists, | |
561 | t->hide_user_symbols, | |
562 | t->hide_kernel_symbols); | |
ab81f3fd ACM |
563 | } |
564 | ||
1758af10 | 565 | static void *display_thread_tui(void *arg) |
c0443df1 | 566 | { |
0d37aa34 | 567 | struct perf_evsel *pos; |
1758af10 | 568 | struct perf_top *top = arg; |
ab81f3fd | 569 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
9783adf7 NK |
570 | struct hist_browser_timer hbt = { |
571 | .timer = perf_top__sort_new_samples, | |
572 | .arg = top, | |
573 | .refresh = top->delay_secs, | |
574 | }; | |
ab81f3fd | 575 | |
1758af10 | 576 | perf_top__sort_new_samples(top); |
0d37aa34 ACM |
577 | |
578 | /* | |
579 | * Initialize the uid_filter_str, in the future the TUI will allow | |
580 | * Zooming in/out UIDs. For now juse use whatever the user passed | |
581 | * via --uid. | |
582 | */ | |
0050f7aa | 583 | evlist__for_each(top->evlist, pos) |
2376c67a | 584 | pos->hists.uid_filter_str = top->record_opts.target.uid_str; |
0d37aa34 | 585 | |
fa5df943 | 586 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, |
68d80758 | 587 | &top->session->header.env); |
ab81f3fd | 588 | |
11859e82 | 589 | done = 1; |
c0443df1 ACM |
590 | return NULL; |
591 | } | |
592 | ||
1758af10 | 593 | static void *display_thread(void *arg) |
07800601 | 594 | { |
0f5486b5 | 595 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 | 596 | struct termios tc, save; |
1758af10 | 597 | struct perf_top *top = arg; |
923c42c1 MG |
598 | int delay_msecs, c; |
599 | ||
600 | tcgetattr(0, &save); | |
601 | tc = save; | |
602 | tc.c_lflag &= ~(ICANON | ECHO); | |
603 | tc.c_cc[VMIN] = 0; | |
604 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 605 | |
3af6e338 | 606 | pthread__unblock_sigwinch(); |
923c42c1 | 607 | repeat: |
1758af10 | 608 | delay_msecs = top->delay_secs * 1000; |
923c42c1 MG |
609 | tcsetattr(0, TCSANOW, &tc); |
610 | /* trash return*/ | |
611 | getc(stdin); | |
07800601 | 612 | |
11859e82 | 613 | while (!done) { |
1758af10 | 614 | perf_top__print_sym_table(top); |
3af6e338 ACM |
615 | /* |
616 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
617 | * refresh screen in both cases. | |
618 | */ | |
619 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
620 | case 0: | |
621 | continue; | |
622 | case -1: | |
623 | if (errno == EINTR) | |
624 | continue; | |
625 | /* Fall trhu */ | |
626 | default: | |
11859e82 ACM |
627 | c = getc(stdin); |
628 | tcsetattr(0, TCSAFLUSH, &save); | |
629 | ||
630 | if (perf_top__handle_keypress(top, c)) | |
631 | goto repeat; | |
632 | done = 1; | |
3af6e338 ACM |
633 | } |
634 | } | |
07800601 IM |
635 | |
636 | return NULL; | |
637 | } | |
638 | ||
1d037ca1 | 639 | static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) |
07800601 | 640 | { |
de04687f ACM |
641 | const char *name = sym->name; |
642 | ||
3a3393ef AB |
643 | /* |
644 | * ppc64 uses function descriptors and appends a '.' to the | |
645 | * start of every instruction address. Remove it. | |
646 | */ | |
647 | if (name[0] == '.') | |
648 | name++; | |
649 | ||
de04687f ACM |
650 | if (!strcmp(name, "_text") || |
651 | !strcmp(name, "_etext") || | |
652 | !strcmp(name, "_sinittext") || | |
653 | !strncmp("init_module", name, 11) || | |
654 | !strncmp("cleanup_module", name, 14) || | |
655 | strstr(name, "_text_start") || | |
656 | strstr(name, "_text_end")) | |
07800601 | 657 | return 1; |
07800601 | 658 | |
82d1deb0 DA |
659 | if (symbol__is_idle(sym)) |
660 | sym->ignore = true; | |
07800601 | 661 | |
07800601 IM |
662 | return 0; |
663 | } | |
664 | ||
1758af10 ACM |
665 | static void perf_event__process_sample(struct perf_tool *tool, |
666 | const union perf_event *event, | |
7b27509f | 667 | struct perf_evsel *evsel, |
8115d60c | 668 | struct perf_sample *sample, |
743eb868 | 669 | struct machine *machine) |
07800601 | 670 | { |
1758af10 | 671 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
19d4ac3c | 672 | struct symbol *parent = NULL; |
ef89325f | 673 | u64 ip = sample->ip; |
1ed091c4 | 674 | struct addr_location al; |
19d4ac3c | 675 | int err; |
5b2bb75a | 676 | |
23346f21 | 677 | if (!machine && perf_guest) { |
6b118e92 DA |
678 | static struct intlist *seen; |
679 | ||
680 | if (!seen) | |
ffe0fb76 | 681 | seen = intlist__new(NULL); |
6b118e92 | 682 | |
ef89325f | 683 | if (!intlist__has_entry(seen, sample->pid)) { |
6b118e92 | 684 | pr_err("Can't find guest [%d]'s kernel information\n", |
ef89325f AH |
685 | sample->pid); |
686 | intlist__add(seen, sample->pid); | |
6b118e92 | 687 | } |
a1645ce1 ZY |
688 | return; |
689 | } | |
690 | ||
0c095715 | 691 | if (!machine) { |
11859e82 | 692 | pr_err("%u unprocessable samples recorded.\r", |
28a6b6aa | 693 | top->session->stats.nr_unprocessable_samples++); |
0c095715 JR |
694 | return; |
695 | } | |
696 | ||
8115d60c | 697 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 698 | top->exact_samples++; |
1676b8a0 | 699 | |
e44baa3e | 700 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0 || |
72b8fa17 | 701 | al.filtered) |
1ed091c4 | 702 | return; |
07800601 | 703 | |
1758af10 | 704 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
705 | symbol_conf.kptr_restrict && |
706 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
707 | ui__warning( | |
708 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
709 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
710 | "Kernel%s samples will not be resolved.\n", | |
711 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
712 | " modules" : ""); | |
713 | if (use_browser <= 0) | |
714 | sleep(5); | |
1758af10 | 715 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
716 | } |
717 | ||
72b8fa17 | 718 | if (al.sym == NULL) { |
e4a338d0 | 719 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
720 | /* |
721 | * As we do lazy loading of symtabs we only will know if the | |
722 | * specified vmlinux file is invalid when we actually have a | |
723 | * hit in kernel space and then try to load it. So if we get | |
724 | * here and there are _no_ symbols in the DSO backing the | |
725 | * kernel map, bail out. | |
726 | * | |
727 | * We may never get here, for instance, if we use -K/ | |
728 | * --hide-kernel-symbols, even if the user specifies an | |
729 | * invalid --vmlinux ;-) | |
730 | */ | |
1758af10 | 731 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 732 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 733 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
734 | if (symbol_conf.vmlinux_name) { |
735 | ui__warning("The %s file can't be used.\n%s", | |
736 | symbol_conf.vmlinux_name, msg); | |
737 | } else { | |
738 | ui__warning("A vmlinux file was not found.\n%s", | |
739 | msg); | |
740 | } | |
741 | ||
742 | if (use_browser <= 0) | |
743 | sleep(5); | |
1758af10 | 744 | top->vmlinux_warned = true; |
72b8fa17 | 745 | } |
6cff0e8d KS |
746 | } |
747 | ||
ab81f3fd | 748 | if (al.sym == NULL || !al.sym->ignore) { |
ab81f3fd | 749 | struct hist_entry *he; |
70db7533 | 750 | |
2dc9fb1a NK |
751 | err = sample__resolve_callchain(sample, &parent, evsel, &al, |
752 | top->max_stack); | |
753 | if (err) | |
754 | return; | |
19d4ac3c | 755 | |
743eb868 | 756 | he = perf_evsel__add_hist_entry(evsel, &al, sample); |
ab81f3fd ACM |
757 | if (he == NULL) { |
758 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
759 | return; | |
5807806a | 760 | } |
ab81f3fd | 761 | |
2dc9fb1a NK |
762 | err = hist_entry__append_callchain(he, sample); |
763 | if (err) | |
764 | return; | |
19d4ac3c | 765 | |
8f0f684b | 766 | if (sort__has_sym) |
1758af10 | 767 | perf_top__record_precise_ip(top, he, evsel->idx, ip); |
5b2bb75a | 768 | } |
ab81f3fd ACM |
769 | |
770 | return; | |
07800601 IM |
771 | } |
772 | ||
1758af10 | 773 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 774 | { |
8d50e5b4 | 775 | struct perf_sample sample; |
7b27509f | 776 | struct perf_evsel *evsel; |
1758af10 | 777 | struct perf_session *session = top->session; |
8115d60c | 778 | union perf_event *event; |
743eb868 ACM |
779 | struct machine *machine; |
780 | u8 origin; | |
5538beca | 781 | int ret; |
07800601 | 782 | |
1758af10 | 783 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
0807d2d8 | 784 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
5538beca FW |
785 | if (ret) { |
786 | pr_err("Can't parse sample, err = %d\n", ret); | |
8e50d384 | 787 | goto next_event; |
5538beca | 788 | } |
04391deb | 789 | |
1758af10 | 790 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
791 | assert(evsel != NULL); |
792 | ||
743eb868 ACM |
793 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
794 | ||
5b2bb75a | 795 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 796 | ++top->samples; |
743eb868 ACM |
797 | |
798 | switch (origin) { | |
799 | case PERF_RECORD_MISC_USER: | |
1758af10 ACM |
800 | ++top->us_samples; |
801 | if (top->hide_user_symbols) | |
8e50d384 | 802 | goto next_event; |
34ba5122 | 803 | machine = &session->machines.host; |
743eb868 ACM |
804 | break; |
805 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
806 | ++top->kernel_samples; |
807 | if (top->hide_kernel_symbols) | |
8e50d384 | 808 | goto next_event; |
34ba5122 | 809 | machine = &session->machines.host; |
743eb868 ACM |
810 | break; |
811 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 | 812 | ++top->guest_kernel_samples; |
ef89325f AH |
813 | machine = perf_session__find_machine(session, |
814 | sample.pid); | |
743eb868 ACM |
815 | break; |
816 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 817 | ++top->guest_us_samples; |
743eb868 ACM |
818 | /* |
819 | * TODO: we don't process guest user from host side | |
820 | * except simple counting. | |
821 | */ | |
822 | /* Fall thru */ | |
823 | default: | |
8e50d384 | 824 | goto next_event; |
743eb868 ACM |
825 | } |
826 | ||
827 | ||
1758af10 ACM |
828 | if (event->header.type == PERF_RECORD_SAMPLE) { |
829 | perf_event__process_sample(&top->tool, event, evsel, | |
830 | &sample, machine); | |
831 | } else if (event->header.type < PERF_RECORD_MAX) { | |
7b27509f | 832 | hists__inc_nr_events(&evsel->hists, event->header.type); |
162f0bef | 833 | machine__process_event(machine, event, &sample); |
7b27509f | 834 | } else |
28a6b6aa | 835 | ++session->stats.nr_unknown_events; |
8e50d384 ZZ |
836 | next_event: |
837 | perf_evlist__mmap_consume(top->evlist, idx); | |
07800601 | 838 | } |
07800601 IM |
839 | } |
840 | ||
1758af10 | 841 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 842 | { |
70db7533 ACM |
843 | int i; |
844 | ||
1758af10 ACM |
845 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
846 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
847 | } |
848 | ||
11859e82 | 849 | static int perf_top__start_counters(struct perf_top *top) |
72cb7013 | 850 | { |
56e52e85 | 851 | char msg[512]; |
6a4bb04c | 852 | struct perf_evsel *counter; |
1758af10 | 853 | struct perf_evlist *evlist = top->evlist; |
b4006796 | 854 | struct record_opts *opts = &top->record_opts; |
727ab04e | 855 | |
2376c67a | 856 | perf_evlist__config(evlist, opts); |
7e4ff9e3 | 857 | |
0050f7aa | 858 | evlist__for_each(evlist, counter) { |
72cb7013 | 859 | try_again: |
1758af10 | 860 | if (perf_evsel__open(counter, top->evlist->cpus, |
6a4bb04c | 861 | top->evlist->threads) < 0) { |
56e52e85 | 862 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
d6d901c2 | 863 | if (verbose) |
c0a54341 | 864 | ui__warning("%s\n", msg); |
d6d901c2 ZY |
865 | goto try_again; |
866 | } | |
c286c419 | 867 | |
56e52e85 ACM |
868 | perf_evsel__open_strerror(counter, &opts->target, |
869 | errno, msg, sizeof(msg)); | |
870 | ui__error("%s\n", msg); | |
c286c419 | 871 | goto out_err; |
d6d901c2 | 872 | } |
716c69fe | 873 | } |
70db7533 | 874 | |
2376c67a | 875 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
3780f488 | 876 | ui__error("Failed to mmap with %d (%s)\n", |
c286c419 ACM |
877 | errno, strerror(errno)); |
878 | goto out_err; | |
879 | } | |
880 | ||
11859e82 | 881 | return 0; |
c286c419 ACM |
882 | |
883 | out_err: | |
11859e82 | 884 | return -1; |
716c69fe IM |
885 | } |
886 | ||
8f0f684b | 887 | static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) |
19d4ac3c | 888 | { |
8f0f684b | 889 | if (!sort__has_sym) { |
19d4ac3c | 890 | if (symbol_conf.use_callchain) { |
3780f488 | 891 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
19d4ac3c ACM |
892 | return -EINVAL; |
893 | } | |
2376c67a | 894 | } else if (callchain_param.mode != CHAIN_NONE) { |
19d4ac3c | 895 | if (callchain_register_param(&callchain_param) < 0) { |
3780f488 | 896 | ui__error("Can't register callchain params.\n"); |
19d4ac3c ACM |
897 | return -EINVAL; |
898 | } | |
899 | } | |
900 | ||
901 | return 0; | |
902 | } | |
903 | ||
1758af10 | 904 | static int __cmd_top(struct perf_top *top) |
716c69fe | 905 | { |
b4006796 | 906 | struct record_opts *opts = &top->record_opts; |
716c69fe | 907 | pthread_t thread; |
19d4ac3c | 908 | int ret; |
f5fc1412 | 909 | |
6a4d98d7 | 910 | top->session = perf_session__new(NULL, false, NULL); |
1758af10 | 911 | if (top->session == NULL) |
b3165f41 | 912 | return -ENOMEM; |
07800601 | 913 | |
36035f78 AH |
914 | machines__set_symbol_filter(&top->session->machines, symbol_filter); |
915 | ||
0d3942db SB |
916 | if (!objdump_path) { |
917 | ret = perf_session_env__lookup_objdump(&top->session->header.env); | |
918 | if (ret) | |
919 | goto out_delete; | |
920 | } | |
921 | ||
1758af10 | 922 | ret = perf_top__setup_sample_type(top); |
19d4ac3c ACM |
923 | if (ret) |
924 | goto out_delete; | |
925 | ||
a33fbd56 ACM |
926 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
927 | top->evlist->threads, false); | |
11859e82 ACM |
928 | ret = perf_top__start_counters(top); |
929 | if (ret) | |
930 | goto out_delete; | |
931 | ||
1758af10 | 932 | top->session->evlist = top->evlist; |
7b56cce2 | 933 | perf_session__set_id_hdr_size(top->session); |
07800601 | 934 | |
2376c67a ACM |
935 | /* |
936 | * When perf is starting the traced process, all the events (apart from | |
937 | * group members) have enable_on_exec=1 set, so don't spoil it by | |
938 | * prematurely enabling them. | |
939 | * | |
940 | * XXX 'top' still doesn't start workloads like record, trace, but should, | |
941 | * so leave the check here. | |
942 | */ | |
602ad878 | 943 | if (!target__none(&opts->target)) |
2376c67a ACM |
944 | perf_evlist__enable(top->evlist); |
945 | ||
2f01190a | 946 | /* Wait for a minimal set of events before starting the snapshot */ |
1758af10 | 947 | poll(top->evlist->pollfd, top->evlist->nr_fds, 100); |
2f01190a | 948 | |
1758af10 | 949 | perf_top__mmap_read(top); |
2f01190a | 950 | |
11859e82 | 951 | ret = -1; |
c0443df1 | 952 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 953 | display_thread), top)) { |
3780f488 | 954 | ui__error("Could not create display thread.\n"); |
11859e82 | 955 | goto out_delete; |
07800601 IM |
956 | } |
957 | ||
1758af10 | 958 | if (top->realtime_prio) { |
07800601 IM |
959 | struct sched_param param; |
960 | ||
1758af10 | 961 | param.sched_priority = top->realtime_prio; |
07800601 | 962 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
3780f488 | 963 | ui__error("Could not set realtime priority.\n"); |
11859e82 | 964 | goto out_delete; |
07800601 IM |
965 | } |
966 | } | |
967 | ||
11859e82 | 968 | while (!done) { |
1758af10 | 969 | u64 hits = top->samples; |
07800601 | 970 | |
1758af10 | 971 | perf_top__mmap_read(top); |
07800601 | 972 | |
1758af10 ACM |
973 | if (hits == top->samples) |
974 | ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); | |
07800601 IM |
975 | } |
976 | ||
11859e82 | 977 | ret = 0; |
19d4ac3c | 978 | out_delete: |
1758af10 ACM |
979 | perf_session__delete(top->session); |
980 | top->session = NULL; | |
19d4ac3c | 981 | |
11859e82 | 982 | return ret; |
19d4ac3c ACM |
983 | } |
984 | ||
985 | static int | |
ae779a63 | 986 | callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 987 | { |
19d4ac3c | 988 | symbol_conf.use_callchain = true; |
ae779a63 JO |
989 | return record_callchain_opt(opt, arg, unset); |
990 | } | |
19d4ac3c | 991 | |
ae779a63 JO |
992 | static int |
993 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) | |
994 | { | |
995 | symbol_conf.use_callchain = true; | |
2376c67a | 996 | return record_parse_callchain_opt(opt, arg, unset); |
07800601 | 997 | } |
b456bae0 | 998 | |
eb853e80 JO |
999 | static int perf_top_config(const char *var, const char *value, void *cb) |
1000 | { | |
1001 | struct perf_top *top = cb; | |
1002 | ||
1003 | if (!strcmp(var, "top.call-graph")) | |
1004 | return record_parse_callchain(value, &top->record_opts); | |
1005 | ||
1006 | return perf_default_config(var, value, cb); | |
1007 | } | |
1008 | ||
fa5df943 NK |
1009 | static int |
1010 | parse_percent_limit(const struct option *opt, const char *arg, | |
1011 | int unset __maybe_unused) | |
1012 | { | |
1013 | struct perf_top *top = opt->value; | |
1014 | ||
1015 | top->min_percent = strtof(arg, NULL); | |
1016 | return 0; | |
1017 | } | |
1018 | ||
1d037ca1 | 1019 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1758af10 | 1020 | { |
d37a92dc | 1021 | int status = -1; |
16ad2ffb | 1022 | char errbuf[BUFSIZ]; |
1758af10 ACM |
1023 | struct perf_top top = { |
1024 | .count_filter = 5, | |
1025 | .delay_secs = 2, | |
2376c67a ACM |
1026 | .record_opts = { |
1027 | .mmap_pages = UINT_MAX, | |
1028 | .user_freq = UINT_MAX, | |
1029 | .user_interval = ULLONG_MAX, | |
1030 | .freq = 4000, /* 4 KHz */ | |
5dbb6e81 | 1031 | .target = { |
2376c67a ACM |
1032 | .uses_mmap = true, |
1033 | }, | |
d1cb9fce | 1034 | }, |
5dbb6e81 | 1035 | .max_stack = PERF_MAX_STACK_DEPTH, |
2376c67a | 1036 | .sym_pcnt_filter = 5, |
1758af10 | 1037 | }; |
b4006796 | 1038 | struct record_opts *opts = &top.record_opts; |
602ad878 | 1039 | struct target *target = &opts->target; |
1758af10 | 1040 | const struct option options[] = { |
8c3e10eb | 1041 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1042 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1043 | parse_events_option), |
2376c67a ACM |
1044 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1045 | OPT_STRING('p', "pid", &target->pid, "pid", | |
d6d901c2 | 1046 | "profile events on existing process id"), |
2376c67a | 1047 | OPT_STRING('t', "tid", &target->tid, "tid", |
d6d901c2 | 1048 | "profile events on existing thread id"), |
2376c67a | 1049 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
b456bae0 | 1050 | "system-wide collection from all CPUs"), |
2376c67a | 1051 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
c45c6ea2 | 1052 | "list of cpus to monitor"), |
b32d133a ACM |
1053 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1054 | "file", "vmlinux pathname"), | |
fc2be696 WT |
1055 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1056 | "don't load vmlinux even if found"), | |
8c3e10eb | 1057 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1058 | "hide kernel symbols"), |
994a1f78 JO |
1059 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1060 | "number of mmap data pages", | |
1061 | perf_evlist__parse_mmap_pages), | |
1758af10 | 1062 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
b456bae0 | 1063 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1064 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1065 | "number of seconds to delay between refreshes"), |
1758af10 | 1066 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1067 | "dump the symbol table used for profiling"), |
8c3e10eb | 1068 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1069 | "only display functions with more events than this"), |
bf80669e | 1070 | OPT_BOOLEAN(0, "group", &opts->group, |
b456bae0 | 1071 | "put the counters into a counter group"), |
2376c67a ACM |
1072 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1073 | "child tasks do not inherit counters"), | |
1758af10 | 1074 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1075 | "symbol to annotate"), |
2376c67a ACM |
1076 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1077 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), | |
8c3e10eb | 1078 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1079 | "display this many functions"), |
8c3e10eb | 1080 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1081 | "hide user symbols"), |
1758af10 ACM |
1082 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1083 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1084 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1085 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd | 1086 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
f5d05bce | 1087 | "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight," |
475eeab9 | 1088 | " abort, in_tx, transaction"), |
ab81f3fd ACM |
1089 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1090 | "Show a column with the number of samples"), | |
bf80669e | 1091 | OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, |
ae779a63 JO |
1092 | NULL, "enables call-graph recording", |
1093 | &callchain_opt), | |
1094 | OPT_CALLBACK(0, "call-graph", &top.record_opts, | |
1095 | "mode[,dump_size]", record_callchain_help, | |
1096 | &parse_callchain_opt), | |
5dbb6e81 WL |
1097 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1098 | "Set the maximum stack depth when parsing the callchain. " | |
1099 | "Default: " __stringify(PERF_MAX_STACK_DEPTH)), | |
b21484f1 GP |
1100 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1101 | "ignore callees of these functions in call graphs", | |
1102 | report_parse_ignore_callees_opt), | |
ab81f3fd ACM |
1103 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1104 | "Show a column with the sum of periods"), | |
1105 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1106 | "only consider symbols in these dsos"), | |
1107 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1108 | "only consider symbols in these comms"), | |
1109 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1110 | "only consider these symbols"), | |
64c6f0c7 ACM |
1111 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1112 | "Interleave source code with assembly code (default)"), | |
1113 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1114 | "Display raw encoding of assembly instructions (default)"), | |
0d3942db SB |
1115 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1116 | "objdump binary to use for disassembly and annotations"), | |
64c6f0c7 ACM |
1117 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1118 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
2376c67a | 1119 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
fa5df943 NK |
1120 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1121 | "Don't show entries under that percent", parse_percent_limit), | |
b456bae0 | 1122 | OPT_END() |
1758af10 | 1123 | }; |
be772842 ACM |
1124 | const char * const top_usage[] = { |
1125 | "perf top [<options>]", | |
1126 | NULL | |
1127 | }; | |
b456bae0 | 1128 | |
334fe7a3 | 1129 | top.evlist = perf_evlist__new(); |
8c3e10eb | 1130 | if (top.evlist == NULL) |
361c99a6 ACM |
1131 | return -ENOMEM; |
1132 | ||
eb853e80 JO |
1133 | perf_config(perf_top_config, &top); |
1134 | ||
b456bae0 IM |
1135 | argc = parse_options(argc, argv, options, top_usage, 0); |
1136 | if (argc) | |
1137 | usage_with_options(top_usage, options); | |
1138 | ||
ab81f3fd ACM |
1139 | if (sort_order == default_sort_order) |
1140 | sort_order = "dso,symbol"; | |
1141 | ||
d37a92dc NK |
1142 | if (setup_sorting() < 0) { |
1143 | parse_options_usage(top_usage, options, "s", 1); | |
1144 | goto out_delete_evlist; | |
1145 | } | |
ab81f3fd | 1146 | |
3a5714f8 NK |
1147 | /* display thread wants entries to be collapsed in a different tree */ |
1148 | sort__need_collapse = 1; | |
1149 | ||
1758af10 | 1150 | if (top.use_stdio) |
c0443df1 | 1151 | use_browser = 0; |
1758af10 | 1152 | else if (top.use_tui) |
c0443df1 ACM |
1153 | use_browser = 1; |
1154 | ||
1155 | setup_browser(false); | |
1156 | ||
602ad878 | 1157 | status = target__validate(target); |
16ad2ffb | 1158 | if (status) { |
602ad878 | 1159 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1160 | ui__warning("%s\n", errbuf); |
16ad2ffb NK |
1161 | } |
1162 | ||
602ad878 | 1163 | status = target__parse_uid(target); |
16ad2ffb NK |
1164 | if (status) { |
1165 | int saved_errno = errno; | |
4bd0f2d2 | 1166 | |
602ad878 | 1167 | target__strerror(target, status, errbuf, BUFSIZ); |
ea432a8b | 1168 | ui__error("%s\n", errbuf); |
16ad2ffb NK |
1169 | |
1170 | status = -saved_errno; | |
0d37aa34 | 1171 | goto out_delete_evlist; |
16ad2ffb | 1172 | } |
0d37aa34 | 1173 | |
602ad878 | 1174 | if (target__none(target)) |
2376c67a | 1175 | target->system_wide = true; |
10b47d54 | 1176 | |
2376c67a | 1177 | if (perf_evlist__create_maps(top.evlist, target) < 0) |
7e2ed097 ACM |
1178 | usage_with_options(top_usage, options); |
1179 | ||
8c3e10eb ACM |
1180 | if (!top.evlist->nr_entries && |
1181 | perf_evlist__add_default(top.evlist) < 0) { | |
3780f488 | 1182 | ui__error("Not enough memory for event selector list\n"); |
03ad9747 | 1183 | goto out_delete_evlist; |
69aad6f1 | 1184 | } |
5a8e5a30 | 1185 | |
d04b35f8 ACM |
1186 | symbol_conf.nr_events = top.evlist->nr_entries; |
1187 | ||
8c3e10eb ACM |
1188 | if (top.delay_secs < 1) |
1189 | top.delay_secs = 1; | |
2f335a02 | 1190 | |
b4006796 | 1191 | if (record_opts__config(opts)) { |
2376c67a | 1192 | status = -EINVAL; |
03ad9747 | 1193 | goto out_delete_evlist; |
69aad6f1 ACM |
1194 | } |
1195 | ||
0c21f736 | 1196 | top.sym_evsel = perf_evlist__first(top.evlist); |
cc841580 | 1197 | |
ab81f3fd | 1198 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1199 | |
1200 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1201 | if (symbol__init() < 0) | |
1202 | return -1; | |
1203 | ||
08e71542 | 1204 | sort__setup_elide(stdout); |
ab81f3fd | 1205 | |
1758af10 | 1206 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1207 | if (top.print_entries == 0) { |
1758af10 ACM |
1208 | struct sigaction act = { |
1209 | .sa_sigaction = perf_top__sig_winch, | |
1210 | .sa_flags = SA_SIGINFO, | |
1211 | }; | |
1212 | perf_top__update_print_entries(&top); | |
1213 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1214 | } |
1215 | ||
1758af10 | 1216 | status = __cmd_top(&top); |
806fb630 | 1217 | |
0d37aa34 | 1218 | out_delete_evlist: |
8c3e10eb | 1219 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1220 | |
1221 | return status; | |
b456bae0 | 1222 | } |