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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> | |
8 | * | |
9 | * Improvements and fixes by: | |
10 | * | |
11 | * Arjan van de Ven <arjan@linux.intel.com> | |
12 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
13 | * Wu Fengguang <fengguang.wu@intel.com> | |
14 | * Mike Galbraith <efault@gmx.de> | |
15 | * Paul Mackerras <paulus@samba.org> | |
16 | * | |
17 | * Released under the GPL v2. (and only v2, not any later version) | |
07800601 | 18 | */ |
bf9e1876 | 19 | #include "builtin.h" |
07800601 | 20 | |
1a482f38 | 21 | #include "perf.h" |
bf9e1876 | 22 | |
36532461 | 23 | #include "util/annotate.h" |
c0443df1 | 24 | #include "util/cache.h" |
8fc0321f | 25 | #include "util/color.h" |
361c99a6 | 26 | #include "util/evlist.h" |
69aad6f1 | 27 | #include "util/evsel.h" |
b3165f41 ACM |
28 | #include "util/session.h" |
29 | #include "util/symbol.h" | |
439d473b | 30 | #include "util/thread.h" |
fd78260b | 31 | #include "util/thread_map.h" |
8c3e10eb | 32 | #include "util/top.h" |
148be2c1 | 33 | #include "util/util.h" |
43cbcd8a | 34 | #include <linux/rbtree.h> |
b456bae0 IM |
35 | #include "util/parse-options.h" |
36 | #include "util/parse-events.h" | |
a12b51c4 | 37 | #include "util/cpumap.h" |
69aad6f1 | 38 | #include "util/xyarray.h" |
07800601 | 39 | |
8f28827a FW |
40 | #include "util/debug.h" |
41 | ||
07800601 IM |
42 | #include <assert.h> |
43 | #include <fcntl.h> | |
0e9b20b8 | 44 | |
07800601 | 45 | #include <stdio.h> |
923c42c1 MG |
46 | #include <termios.h> |
47 | #include <unistd.h> | |
9486aa38 | 48 | #include <inttypes.h> |
0e9b20b8 | 49 | |
07800601 | 50 | #include <errno.h> |
07800601 IM |
51 | #include <time.h> |
52 | #include <sched.h> | |
07800601 IM |
53 | |
54 | #include <sys/syscall.h> | |
55 | #include <sys/ioctl.h> | |
56 | #include <sys/poll.h> | |
57 | #include <sys/prctl.h> | |
58 | #include <sys/wait.h> | |
59 | #include <sys/uio.h> | |
60 | #include <sys/mman.h> | |
61 | ||
62 | #include <linux/unistd.h> | |
63 | #include <linux/types.h> | |
64 | ||
8c3e10eb ACM |
65 | static struct perf_top top = { |
66 | .count_filter = 5, | |
67 | .delay_secs = 2, | |
68 | .display_weighted = -1, | |
69 | .target_pid = -1, | |
70 | .target_tid = -1, | |
71 | .active_symbols = LIST_HEAD_INIT(top.active_symbols), | |
72 | .active_symbols_lock = PTHREAD_MUTEX_INITIALIZER, | |
5807806a | 73 | .active_symbols_cond = PTHREAD_COND_INITIALIZER, |
8c3e10eb ACM |
74 | .freq = 1000, /* 1 KHz */ |
75 | }; | |
361c99a6 | 76 | |
c0555642 | 77 | static bool system_wide = false; |
07800601 | 78 | |
c0443df1 ACM |
79 | static bool use_tui, use_stdio; |
80 | ||
7e4ff9e3 | 81 | static int default_interval = 0; |
07800601 | 82 | |
5f6f5580 | 83 | static bool kptr_restrict_warned; |
e4a338d0 | 84 | static bool vmlinux_warned; |
c0555642 | 85 | static bool inherit = false; |
1967936d | 86 | static int realtime_prio = 0; |
c0555642 | 87 | static bool group = false; |
07800601 | 88 | static unsigned int page_size; |
70db7533 | 89 | static unsigned int mmap_pages = 128; |
07800601 | 90 | |
c0555642 | 91 | static bool dump_symtab = false; |
07800601 | 92 | |
13cc5079 | 93 | static struct winsize winsize; |
8ffcda17 | 94 | |
edb7c60e | 95 | static const char *sym_filter = NULL; |
6cff0e8d | 96 | struct sym_entry *sym_filter_entry_sched = NULL; |
42e59d7d | 97 | static int sym_pcnt_filter = 5; |
07800601 | 98 | |
923c42c1 MG |
99 | /* |
100 | * Source functions | |
101 | */ | |
102 | ||
895f0edc | 103 | void get_term_dimensions(struct winsize *ws) |
3b6ed988 | 104 | { |
13cc5079 ACM |
105 | char *s = getenv("LINES"); |
106 | ||
107 | if (s != NULL) { | |
108 | ws->ws_row = atoi(s); | |
109 | s = getenv("COLUMNS"); | |
110 | if (s != NULL) { | |
111 | ws->ws_col = atoi(s); | |
112 | if (ws->ws_row && ws->ws_col) | |
113 | return; | |
114 | } | |
3b6ed988 | 115 | } |
13cc5079 ACM |
116 | #ifdef TIOCGWINSZ |
117 | if (ioctl(1, TIOCGWINSZ, ws) == 0 && | |
118 | ws->ws_row && ws->ws_col) | |
119 | return; | |
3b6ed988 | 120 | #endif |
13cc5079 ACM |
121 | ws->ws_row = 25; |
122 | ws->ws_col = 80; | |
3b6ed988 ACM |
123 | } |
124 | ||
13cc5079 | 125 | static void update_print_entries(struct winsize *ws) |
3b6ed988 | 126 | { |
8c3e10eb | 127 | top.print_entries = ws->ws_row; |
13cc5079 | 128 | |
8c3e10eb ACM |
129 | if (top.print_entries > 9) |
130 | top.print_entries -= 9; | |
3b6ed988 ACM |
131 | } |
132 | ||
133 | static void sig_winch_handler(int sig __used) | |
134 | { | |
13cc5079 ACM |
135 | get_term_dimensions(&winsize); |
136 | update_print_entries(&winsize); | |
3b6ed988 ACM |
137 | } |
138 | ||
b0a9ab62 | 139 | static int parse_source(struct sym_entry *syme) |
923c42c1 MG |
140 | { |
141 | struct symbol *sym; | |
ce6f4fab | 142 | struct annotation *notes; |
439d473b | 143 | struct map *map; |
36532461 | 144 | int err = -1; |
923c42c1 MG |
145 | |
146 | if (!syme) | |
b0a9ab62 ACM |
147 | return -1; |
148 | ||
149 | sym = sym_entry__symbol(syme); | |
150 | map = syme->map; | |
151 | ||
152 | /* | |
153 | * We can't annotate with just /proc/kallsyms | |
154 | */ | |
878b439d | 155 | if (map->dso->symtab_type == SYMTAB__KALLSYMS) { |
ce6f4fab ACM |
156 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
157 | "path\n", sym->name); | |
158 | sleep(1); | |
b0a9ab62 | 159 | return -1; |
b269876c ACM |
160 | } |
161 | ||
ce6f4fab ACM |
162 | notes = symbol__annotation(sym); |
163 | if (notes->src != NULL) { | |
164 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
165 | goto out_assign; |
166 | } | |
923c42c1 | 167 | |
ce6f4fab | 168 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 169 | |
36532461 | 170 | if (symbol__alloc_hist(sym, top.evlist->nr_entries) < 0) { |
c97cf422 | 171 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
172 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
173 | sym->name); | |
ce6f4fab | 174 | sleep(1); |
c97cf422 | 175 | return err; |
923c42c1 | 176 | } |
36532461 | 177 | |
ce6f4fab | 178 | err = symbol__annotate(sym, syme->map, 0); |
36532461 | 179 | if (err == 0) { |
923c42c1 | 180 | out_assign: |
c97cf422 | 181 | top.sym_filter_entry = syme; |
36532461 | 182 | } |
c97cf422 | 183 | |
ce6f4fab | 184 | pthread_mutex_unlock(¬es->lock); |
36532461 | 185 | return err; |
923c42c1 MG |
186 | } |
187 | ||
188 | static void __zero_source_counters(struct sym_entry *syme) | |
189 | { | |
36532461 ACM |
190 | struct symbol *sym = sym_entry__symbol(syme); |
191 | symbol__annotate_zero_histograms(sym); | |
923c42c1 MG |
192 | } |
193 | ||
194 | static void record_precise_ip(struct sym_entry *syme, int counter, u64 ip) | |
195 | { | |
ce6f4fab ACM |
196 | struct annotation *notes; |
197 | struct symbol *sym; | |
198 | ||
c97cf422 | 199 | if (syme != top.sym_filter_entry) |
923c42c1 MG |
200 | return; |
201 | ||
ce6f4fab ACM |
202 | sym = sym_entry__symbol(syme); |
203 | notes = symbol__annotation(sym); | |
204 | ||
205 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
206 | return; |
207 | ||
36532461 | 208 | ip = syme->map->map_ip(syme->map, ip); |
ce6f4fab | 209 | symbol__inc_addr_samples(sym, syme->map, counter, ip); |
c7ad21af | 210 | |
ce6f4fab | 211 | pthread_mutex_unlock(¬es->lock); |
923c42c1 MG |
212 | } |
213 | ||
923c42c1 MG |
214 | static void show_details(struct sym_entry *syme) |
215 | { | |
ce6f4fab | 216 | struct annotation *notes; |
923c42c1 | 217 | struct symbol *symbol; |
36532461 | 218 | int more; |
923c42c1 MG |
219 | |
220 | if (!syme) | |
221 | return; | |
222 | ||
36532461 | 223 | symbol = sym_entry__symbol(syme); |
ce6f4fab ACM |
224 | notes = symbol__annotation(symbol); |
225 | ||
226 | pthread_mutex_lock(¬es->lock); | |
227 | ||
228 | if (notes->src == NULL) | |
229 | goto out_unlock; | |
923c42c1 | 230 | |
8c3e10eb | 231 | printf("Showing %s for %s\n", event_name(top.sym_evsel), symbol->name); |
923c42c1 MG |
232 | printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter); |
233 | ||
ce6f4fab | 234 | more = symbol__annotate_printf(symbol, syme->map, top.sym_evsel->idx, |
d5e3d747 | 235 | 0, sym_pcnt_filter, top.print_entries, 4); |
36532461 ACM |
236 | if (top.zero) |
237 | symbol__annotate_zero_histogram(symbol, top.sym_evsel->idx); | |
238 | else | |
ce6f4fab | 239 | symbol__annotate_decay_histogram(symbol, top.sym_evsel->idx); |
36532461 | 240 | if (more != 0) |
923c42c1 | 241 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
242 | out_unlock: |
243 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 244 | } |
07800601 | 245 | |
07800601 IM |
246 | static const char CONSOLE_CLEAR[] = "\e[H\e[2J"; |
247 | ||
c44613a4 | 248 | static void __list_insert_active_sym(struct sym_entry *syme) |
de04687f | 249 | { |
8c3e10eb | 250 | list_add(&syme->node, &top.active_symbols); |
de04687f | 251 | } |
07800601 | 252 | |
93fc64f1 | 253 | static void print_sym_table(struct perf_session *session) |
07800601 | 254 | { |
8c3e10eb ACM |
255 | char bf[160]; |
256 | int printed = 0; | |
de04687f | 257 | struct rb_node *nd; |
8c3e10eb ACM |
258 | struct sym_entry *syme; |
259 | struct rb_root tmp = RB_ROOT; | |
13cc5079 | 260 | const int win_width = winsize.ws_col - 1; |
8c3e10eb ACM |
261 | int sym_width, dso_width, dso_short_width; |
262 | float sum_ksamples = perf_top__decay_samples(&top, &tmp); | |
d94b9430 | 263 | |
0f5486b5 | 264 | puts(CONSOLE_CLEAR); |
07800601 | 265 | |
8c3e10eb ACM |
266 | perf_top__header_snprintf(&top, bf, sizeof(bf)); |
267 | printf("%s\n", bf); | |
07800601 | 268 | |
8c3e10eb | 269 | perf_top__reset_sample_counters(&top); |
07800601 | 270 | |
1a105f74 | 271 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 272 | |
93fc64f1 ACM |
273 | if (session->hists.stats.total_lost != 0) { |
274 | color_fprintf(stdout, PERF_COLOR_RED, "WARNING:"); | |
275 | printf(" LOST %" PRIu64 " events, Check IO/CPU overload\n", | |
276 | session->hists.stats.total_lost); | |
277 | } | |
278 | ||
c97cf422 ACM |
279 | if (top.sym_filter_entry) { |
280 | show_details(top.sym_filter_entry); | |
923c42c1 MG |
281 | return; |
282 | } | |
283 | ||
8c3e10eb ACM |
284 | perf_top__find_widths(&top, &tmp, &dso_width, &dso_short_width, |
285 | &sym_width); | |
13cc5079 | 286 | |
b63be8d7 ACM |
287 | if (sym_width + dso_width > winsize.ws_col - 29) { |
288 | dso_width = dso_short_width; | |
289 | if (sym_width + dso_width > winsize.ws_col - 29) | |
290 | sym_width = winsize.ws_col - dso_width - 29; | |
291 | } | |
7cc017ed | 292 | putchar('\n'); |
8c3e10eb | 293 | if (top.evlist->nr_entries == 1) |
5b2bb75a | 294 | printf(" samples pcnt"); |
07800601 | 295 | else |
5b2bb75a | 296 | printf(" weight samples pcnt"); |
07800601 | 297 | |
7ced156b ACM |
298 | if (verbose) |
299 | printf(" RIP "); | |
7cc017ed | 300 | printf(" %-*.*s DSO\n", sym_width, sym_width, "function"); |
5b2bb75a | 301 | printf(" %s _______ _____", |
8c3e10eb | 302 | top.evlist->nr_entries == 1 ? " " : "______"); |
7ced156b | 303 | if (verbose) |
5b2bb75a | 304 | printf(" ________________"); |
1a105f74 | 305 | printf(" %-*.*s", sym_width, sym_width, graph_line); |
7cc017ed | 306 | printf(" %-*.*s", dso_width, dso_width, graph_line); |
1a105f74 | 307 | puts("\n"); |
07800601 | 308 | |
de04687f | 309 | for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { |
83a0944f | 310 | struct symbol *sym; |
8fc0321f | 311 | double pcnt; |
d94b9430 | 312 | |
83a0944f | 313 | syme = rb_entry(nd, struct sym_entry, rb_node); |
51a472de | 314 | sym = sym_entry__symbol(syme); |
8c3e10eb ACM |
315 | if (++printed > top.print_entries || |
316 | (int)syme->snap_count < top.count_filter) | |
c44613a4 | 317 | continue; |
d94b9430 | 318 | |
2debbc83 IM |
319 | pcnt = 100.0 - (100.0 * ((sum_ksamples - syme->snap_count) / |
320 | sum_ksamples)); | |
d94b9430 | 321 | |
8c3e10eb | 322 | if (top.evlist->nr_entries == 1 || !top.display_weighted) |
5b2bb75a | 323 | printf("%20.2f ", syme->weight); |
d94b9430 | 324 | else |
5b2bb75a | 325 | printf("%9.1f %10ld ", syme->weight, syme->snap_count); |
8fc0321f | 326 | |
1e11fd82 | 327 | percent_color_fprintf(stdout, "%4.1f%%", pcnt); |
7ced156b | 328 | if (verbose) |
9486aa38 | 329 | printf(" %016" PRIx64, sym->start); |
13cc5079 | 330 | printf(" %-*.*s", sym_width, sym_width, sym->name); |
7cc017ed ACM |
331 | printf(" %-*.*s\n", dso_width, dso_width, |
332 | dso_width >= syme->map->dso->long_name_len ? | |
333 | syme->map->dso->long_name : | |
334 | syme->map->dso->short_name); | |
07800601 | 335 | } |
07800601 IM |
336 | } |
337 | ||
923c42c1 MG |
338 | static void prompt_integer(int *target, const char *msg) |
339 | { | |
340 | char *buf = malloc(0), *p; | |
341 | size_t dummy = 0; | |
342 | int tmp; | |
343 | ||
344 | fprintf(stdout, "\n%s: ", msg); | |
345 | if (getline(&buf, &dummy, stdin) < 0) | |
346 | return; | |
347 | ||
348 | p = strchr(buf, '\n'); | |
349 | if (p) | |
350 | *p = 0; | |
351 | ||
352 | p = buf; | |
353 | while(*p) { | |
354 | if (!isdigit(*p)) | |
355 | goto out_free; | |
356 | p++; | |
357 | } | |
358 | tmp = strtoul(buf, NULL, 10); | |
359 | *target = tmp; | |
360 | out_free: | |
361 | free(buf); | |
362 | } | |
363 | ||
364 | static void prompt_percent(int *target, const char *msg) | |
365 | { | |
366 | int tmp = 0; | |
367 | ||
368 | prompt_integer(&tmp, msg); | |
369 | if (tmp >= 0 && tmp <= 100) | |
370 | *target = tmp; | |
371 | } | |
372 | ||
373 | static void prompt_symbol(struct sym_entry **target, const char *msg) | |
374 | { | |
375 | char *buf = malloc(0), *p; | |
376 | struct sym_entry *syme = *target, *n, *found = NULL; | |
377 | size_t dummy = 0; | |
378 | ||
379 | /* zero counters of active symbol */ | |
380 | if (syme) { | |
923c42c1 MG |
381 | __zero_source_counters(syme); |
382 | *target = NULL; | |
923c42c1 MG |
383 | } |
384 | ||
385 | fprintf(stdout, "\n%s: ", msg); | |
386 | if (getline(&buf, &dummy, stdin) < 0) | |
387 | goto out_free; | |
388 | ||
389 | p = strchr(buf, '\n'); | |
390 | if (p) | |
391 | *p = 0; | |
392 | ||
8c3e10eb ACM |
393 | pthread_mutex_lock(&top.active_symbols_lock); |
394 | syme = list_entry(top.active_symbols.next, struct sym_entry, node); | |
395 | pthread_mutex_unlock(&top.active_symbols_lock); | |
923c42c1 | 396 | |
8c3e10eb | 397 | list_for_each_entry_safe_from(syme, n, &top.active_symbols, node) { |
51a472de | 398 | struct symbol *sym = sym_entry__symbol(syme); |
923c42c1 MG |
399 | |
400 | if (!strcmp(buf, sym->name)) { | |
401 | found = syme; | |
402 | break; | |
403 | } | |
404 | } | |
405 | ||
406 | if (!found) { | |
66aeb6d5 | 407 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 MG |
408 | sleep(1); |
409 | return; | |
410 | } else | |
411 | parse_source(found); | |
412 | ||
413 | out_free: | |
414 | free(buf); | |
415 | } | |
416 | ||
091bd2e9 | 417 | static void print_mapped_keys(void) |
923c42c1 | 418 | { |
091bd2e9 MG |
419 | char *name = NULL; |
420 | ||
c97cf422 ACM |
421 | if (top.sym_filter_entry) { |
422 | struct symbol *sym = sym_entry__symbol(top.sym_filter_entry); | |
091bd2e9 MG |
423 | name = sym->name; |
424 | } | |
425 | ||
426 | fprintf(stdout, "\nMapped keys:\n"); | |
8c3e10eb ACM |
427 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top.delay_secs); |
428 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top.print_entries); | |
091bd2e9 | 429 | |
8c3e10eb ACM |
430 | if (top.evlist->nr_entries > 1) |
431 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top.sym_evsel)); | |
091bd2e9 | 432 | |
8c3e10eb | 433 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top.count_filter); |
091bd2e9 | 434 | |
6cff0e8d KS |
435 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); |
436 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); | |
437 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 438 | |
8c3e10eb ACM |
439 | if (top.evlist->nr_entries > 1) |
440 | fprintf(stdout, "\t[w] toggle display weighted/count[E]r. \t(%d)\n", top.display_weighted ? 1 : 0); | |
091bd2e9 | 441 | |
8ffcda17 | 442 | fprintf(stdout, |
1a72cfa6 | 443 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
8c3e10eb | 444 | top.hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
445 | fprintf(stdout, |
446 | "\t[U] hide user symbols. \t(%s)\n", | |
8c3e10eb ACM |
447 | top.hide_user_symbols ? "yes" : "no"); |
448 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top.zero ? 1 : 0); | |
091bd2e9 MG |
449 | fprintf(stdout, "\t[qQ] quit.\n"); |
450 | } | |
451 | ||
452 | static int key_mapped(int c) | |
453 | { | |
454 | switch (c) { | |
455 | case 'd': | |
456 | case 'e': | |
457 | case 'f': | |
458 | case 'z': | |
459 | case 'q': | |
460 | case 'Q': | |
8ffcda17 ACM |
461 | case 'K': |
462 | case 'U': | |
6cff0e8d KS |
463 | case 'F': |
464 | case 's': | |
465 | case 'S': | |
091bd2e9 MG |
466 | return 1; |
467 | case 'E': | |
468 | case 'w': | |
8c3e10eb | 469 | return top.evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
470 | default: |
471 | break; | |
091bd2e9 MG |
472 | } |
473 | ||
474 | return 0; | |
923c42c1 MG |
475 | } |
476 | ||
a1645ce1 | 477 | static void handle_keypress(struct perf_session *session, int c) |
923c42c1 | 478 | { |
091bd2e9 MG |
479 | if (!key_mapped(c)) { |
480 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; | |
481 | struct termios tc, save; | |
482 | ||
483 | print_mapped_keys(); | |
484 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); | |
485 | fflush(stdout); | |
486 | ||
487 | tcgetattr(0, &save); | |
488 | tc = save; | |
489 | tc.c_lflag &= ~(ICANON | ECHO); | |
490 | tc.c_cc[VMIN] = 0; | |
491 | tc.c_cc[VTIME] = 0; | |
492 | tcsetattr(0, TCSANOW, &tc); | |
493 | ||
494 | poll(&stdin_poll, 1, -1); | |
495 | c = getc(stdin); | |
496 | ||
497 | tcsetattr(0, TCSAFLUSH, &save); | |
498 | if (!key_mapped(c)) | |
499 | return; | |
500 | } | |
501 | ||
923c42c1 MG |
502 | switch (c) { |
503 | case 'd': | |
8c3e10eb ACM |
504 | prompt_integer(&top.delay_secs, "Enter display delay"); |
505 | if (top.delay_secs < 1) | |
506 | top.delay_secs = 1; | |
923c42c1 MG |
507 | break; |
508 | case 'e': | |
8c3e10eb ACM |
509 | prompt_integer(&top.print_entries, "Enter display entries (lines)"); |
510 | if (top.print_entries == 0) { | |
13cc5079 | 511 | sig_winch_handler(SIGWINCH); |
3b6ed988 ACM |
512 | signal(SIGWINCH, sig_winch_handler); |
513 | } else | |
514 | signal(SIGWINCH, SIG_DFL); | |
923c42c1 MG |
515 | break; |
516 | case 'E': | |
8c3e10eb | 517 | if (top.evlist->nr_entries > 1) { |
ce2d17ca AN |
518 | /* Select 0 as the default event: */ |
519 | int counter = 0; | |
520 | ||
923c42c1 | 521 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 522 | |
8c3e10eb ACM |
523 | list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) |
524 | fprintf(stderr, "\n\t%d %s", top.sym_evsel->idx, event_name(top.sym_evsel)); | |
923c42c1 | 525 | |
ec52d976 | 526 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 527 | |
ec52d976 | 528 | if (counter >= top.evlist->nr_entries) { |
8c3e10eb | 529 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
8c3e10eb | 530 | fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top.sym_evsel)); |
923c42c1 | 531 | sleep(1); |
69aad6f1 | 532 | break; |
923c42c1 | 533 | } |
8c3e10eb | 534 | list_for_each_entry(top.sym_evsel, &top.evlist->entries, node) |
ec52d976 | 535 | if (top.sym_evsel->idx == counter) |
69aad6f1 | 536 | break; |
ec52d976 ACM |
537 | } else |
538 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); | |
923c42c1 MG |
539 | break; |
540 | case 'f': | |
8c3e10eb | 541 | prompt_integer(&top.count_filter, "Enter display event count filter"); |
923c42c1 MG |
542 | break; |
543 | case 'F': | |
544 | prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)"); | |
545 | break; | |
8ffcda17 | 546 | case 'K': |
8c3e10eb | 547 | top.hide_kernel_symbols = !top.hide_kernel_symbols; |
8ffcda17 | 548 | break; |
923c42c1 MG |
549 | case 'q': |
550 | case 'Q': | |
551 | printf("exiting.\n"); | |
c338aee8 | 552 | if (dump_symtab) |
cbf69680 | 553 | perf_session__fprintf_dsos(session, stderr); |
923c42c1 MG |
554 | exit(0); |
555 | case 's': | |
c97cf422 | 556 | prompt_symbol(&top.sym_filter_entry, "Enter details symbol"); |
923c42c1 MG |
557 | break; |
558 | case 'S': | |
c97cf422 | 559 | if (!top.sym_filter_entry) |
923c42c1 MG |
560 | break; |
561 | else { | |
c97cf422 | 562 | struct sym_entry *syme = top.sym_filter_entry; |
923c42c1 | 563 | |
c97cf422 | 564 | top.sym_filter_entry = NULL; |
923c42c1 | 565 | __zero_source_counters(syme); |
923c42c1 MG |
566 | } |
567 | break; | |
8ffcda17 | 568 | case 'U': |
8c3e10eb | 569 | top.hide_user_symbols = !top.hide_user_symbols; |
8ffcda17 | 570 | break; |
46ab9764 | 571 | case 'w': |
8c3e10eb | 572 | top.display_weighted = ~top.display_weighted; |
46ab9764 | 573 | break; |
923c42c1 | 574 | case 'z': |
8c3e10eb | 575 | top.zero = !top.zero; |
923c42c1 | 576 | break; |
83a0944f IM |
577 | default: |
578 | break; | |
923c42c1 MG |
579 | } |
580 | } | |
581 | ||
c0443df1 ACM |
582 | static void *display_thread_tui(void *arg __used) |
583 | { | |
5807806a ACM |
584 | int err = 0; |
585 | pthread_mutex_lock(&top.active_symbols_lock); | |
586 | while (list_empty(&top.active_symbols)) { | |
587 | err = pthread_cond_wait(&top.active_symbols_cond, | |
588 | &top.active_symbols_lock); | |
589 | if (err) | |
590 | break; | |
591 | } | |
592 | pthread_mutex_unlock(&top.active_symbols_lock); | |
593 | if (!err) | |
594 | perf_top__tui_browser(&top); | |
c0443df1 ACM |
595 | exit_browser(0); |
596 | exit(0); | |
597 | return NULL; | |
598 | } | |
599 | ||
f37a291c | 600 | static void *display_thread(void *arg __used) |
07800601 | 601 | { |
0f5486b5 | 602 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 MG |
603 | struct termios tc, save; |
604 | int delay_msecs, c; | |
a1645ce1 | 605 | struct perf_session *session = (struct perf_session *) arg; |
923c42c1 MG |
606 | |
607 | tcgetattr(0, &save); | |
608 | tc = save; | |
609 | tc.c_lflag &= ~(ICANON | ECHO); | |
610 | tc.c_cc[VMIN] = 0; | |
611 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 612 | |
923c42c1 | 613 | repeat: |
8c3e10eb | 614 | delay_msecs = top.delay_secs * 1000; |
923c42c1 MG |
615 | tcsetattr(0, TCSANOW, &tc); |
616 | /* trash return*/ | |
617 | getc(stdin); | |
07800601 | 618 | |
0f5486b5 | 619 | do { |
93fc64f1 | 620 | print_sym_table(session); |
0f5486b5 FW |
621 | } while (!poll(&stdin_poll, 1, delay_msecs) == 1); |
622 | ||
923c42c1 MG |
623 | c = getc(stdin); |
624 | tcsetattr(0, TCSAFLUSH, &save); | |
625 | ||
a1645ce1 | 626 | handle_keypress(session, c); |
923c42c1 | 627 | goto repeat; |
07800601 IM |
628 | |
629 | return NULL; | |
630 | } | |
631 | ||
2ab52083 | 632 | /* Tag samples to be skipped. */ |
f37a291c | 633 | static const char *skip_symbols[] = { |
2ab52083 | 634 | "default_idle", |
b0e8572f | 635 | "native_safe_halt", |
2ab52083 AB |
636 | "cpu_idle", |
637 | "enter_idle", | |
638 | "exit_idle", | |
639 | "mwait_idle", | |
59b90056 | 640 | "mwait_idle_with_hints", |
8357275b | 641 | "poll_idle", |
3a3393ef AB |
642 | "ppc64_runlatch_off", |
643 | "pseries_dedicated_idle_sleep", | |
2ab52083 AB |
644 | NULL |
645 | }; | |
646 | ||
439d473b | 647 | static int symbol_filter(struct map *map, struct symbol *sym) |
07800601 | 648 | { |
de04687f ACM |
649 | struct sym_entry *syme; |
650 | const char *name = sym->name; | |
2ab52083 | 651 | int i; |
de04687f | 652 | |
3a3393ef AB |
653 | /* |
654 | * ppc64 uses function descriptors and appends a '.' to the | |
655 | * start of every instruction address. Remove it. | |
656 | */ | |
657 | if (name[0] == '.') | |
658 | name++; | |
659 | ||
de04687f ACM |
660 | if (!strcmp(name, "_text") || |
661 | !strcmp(name, "_etext") || | |
662 | !strcmp(name, "_sinittext") || | |
663 | !strncmp("init_module", name, 11) || | |
664 | !strncmp("cleanup_module", name, 14) || | |
665 | strstr(name, "_text_start") || | |
666 | strstr(name, "_text_end")) | |
07800601 | 667 | return 1; |
07800601 | 668 | |
00a192b3 | 669 | syme = symbol__priv(sym); |
439d473b | 670 | syme->map = map; |
ce6f4fab | 671 | symbol__annotate_init(map, sym); |
6cff0e8d | 672 | |
c97cf422 | 673 | if (!top.sym_filter_entry && sym_filter && !strcmp(name, sym_filter)) { |
6cff0e8d KS |
674 | /* schedule initial sym_filter_entry setup */ |
675 | sym_filter_entry_sched = syme; | |
676 | sym_filter = NULL; | |
677 | } | |
923c42c1 | 678 | |
2ab52083 AB |
679 | for (i = 0; skip_symbols[i]; i++) { |
680 | if (!strcmp(skip_symbols[i], name)) { | |
171b3be9 | 681 | sym->ignore = true; |
2ab52083 AB |
682 | break; |
683 | } | |
684 | } | |
07800601 | 685 | |
07800601 IM |
686 | return 0; |
687 | } | |
688 | ||
8115d60c ACM |
689 | static void perf_event__process_sample(const union perf_event *event, |
690 | struct perf_sample *sample, | |
691 | struct perf_session *session) | |
07800601 | 692 | { |
8115d60c | 693 | u64 ip = event->ip.ip; |
5b2bb75a | 694 | struct sym_entry *syme; |
1ed091c4 | 695 | struct addr_location al; |
23346f21 | 696 | struct machine *machine; |
8115d60c | 697 | u8 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
5b2bb75a | 698 | |
8c3e10eb | 699 | ++top.samples; |
24bfef0f | 700 | |
8ffcda17 | 701 | switch (origin) { |
1ed091c4 | 702 | case PERF_RECORD_MISC_USER: |
8c3e10eb ACM |
703 | ++top.us_samples; |
704 | if (top.hide_user_symbols) | |
8ffcda17 | 705 | return; |
23346f21 | 706 | machine = perf_session__find_host_machine(session); |
1ed091c4 | 707 | break; |
5b2bb75a | 708 | case PERF_RECORD_MISC_KERNEL: |
8c3e10eb ACM |
709 | ++top.kernel_samples; |
710 | if (top.hide_kernel_symbols) | |
8ffcda17 | 711 | return; |
23346f21 | 712 | machine = perf_session__find_host_machine(session); |
a1645ce1 ZY |
713 | break; |
714 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
8c3e10eb | 715 | ++top.guest_kernel_samples; |
8115d60c | 716 | machine = perf_session__find_machine(session, event->ip.pid); |
5b2bb75a | 717 | break; |
a1645ce1 | 718 | case PERF_RECORD_MISC_GUEST_USER: |
8c3e10eb | 719 | ++top.guest_us_samples; |
a1645ce1 ZY |
720 | /* |
721 | * TODO: we don't process guest user from host side | |
722 | * except simple counting. | |
723 | */ | |
724 | return; | |
5b2bb75a ACM |
725 | default: |
726 | return; | |
727 | } | |
728 | ||
23346f21 | 729 | if (!machine && perf_guest) { |
a1645ce1 | 730 | pr_err("Can't find guest [%d]'s kernel information\n", |
8115d60c | 731 | event->ip.pid); |
a1645ce1 ZY |
732 | return; |
733 | } | |
734 | ||
8115d60c | 735 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
8c3e10eb | 736 | top.exact_samples++; |
1676b8a0 | 737 | |
8115d60c ACM |
738 | if (perf_event__preprocess_sample(event, session, &al, sample, |
739 | symbol_filter) < 0 || | |
72b8fa17 | 740 | al.filtered) |
1ed091c4 | 741 | return; |
07800601 | 742 | |
5f6f5580 ACM |
743 | if (!kptr_restrict_warned && |
744 | symbol_conf.kptr_restrict && | |
745 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
746 | ui__warning( | |
747 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
748 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
749 | "Kernel%s samples will not be resolved.\n", | |
750 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
751 | " modules" : ""); | |
752 | if (use_browser <= 0) | |
753 | sleep(5); | |
754 | kptr_restrict_warned = true; | |
755 | } | |
756 | ||
72b8fa17 | 757 | if (al.sym == NULL) { |
e4a338d0 | 758 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
759 | /* |
760 | * As we do lazy loading of symtabs we only will know if the | |
761 | * specified vmlinux file is invalid when we actually have a | |
762 | * hit in kernel space and then try to load it. So if we get | |
763 | * here and there are _no_ symbols in the DSO backing the | |
764 | * kernel map, bail out. | |
765 | * | |
766 | * We may never get here, for instance, if we use -K/ | |
767 | * --hide-kernel-symbols, even if the user specifies an | |
768 | * invalid --vmlinux ;-) | |
769 | */ | |
e4a338d0 ACM |
770 | if (!kptr_restrict_warned && !vmlinux_warned && |
771 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && | |
72b8fa17 | 772 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
773 | if (symbol_conf.vmlinux_name) { |
774 | ui__warning("The %s file can't be used.\n%s", | |
775 | symbol_conf.vmlinux_name, msg); | |
776 | } else { | |
777 | ui__warning("A vmlinux file was not found.\n%s", | |
778 | msg); | |
779 | } | |
780 | ||
781 | if (use_browser <= 0) | |
782 | sleep(5); | |
783 | vmlinux_warned = true; | |
72b8fa17 ACM |
784 | } |
785 | ||
786 | return; | |
787 | } | |
788 | ||
6cff0e8d KS |
789 | /* let's see, whether we need to install initial sym_filter_entry */ |
790 | if (sym_filter_entry_sched) { | |
c97cf422 | 791 | top.sym_filter_entry = sym_filter_entry_sched; |
6cff0e8d | 792 | sym_filter_entry_sched = NULL; |
c97cf422 ACM |
793 | if (parse_source(top.sym_filter_entry) < 0) { |
794 | struct symbol *sym = sym_entry__symbol(top.sym_filter_entry); | |
b0a9ab62 ACM |
795 | |
796 | pr_err("Can't annotate %s", sym->name); | |
878b439d | 797 | if (top.sym_filter_entry->map->dso->symtab_type == SYMTAB__KALLSYMS) { |
b0a9ab62 | 798 | pr_err(": No vmlinux file was found in the path:\n"); |
5ad90e4e | 799 | machine__fprintf_vmlinux_path(machine, stderr); |
b0a9ab62 ACM |
800 | } else |
801 | pr_err(".\n"); | |
802 | exit(1); | |
803 | } | |
6cff0e8d KS |
804 | } |
805 | ||
1ed091c4 | 806 | syme = symbol__priv(al.sym); |
171b3be9 | 807 | if (!al.sym->ignore) { |
70db7533 ACM |
808 | struct perf_evsel *evsel; |
809 | ||
8c3e10eb | 810 | evsel = perf_evlist__id2evsel(top.evlist, sample->id); |
70db7533 ACM |
811 | assert(evsel != NULL); |
812 | syme->count[evsel->idx]++; | |
69aad6f1 | 813 | record_precise_ip(syme, evsel->idx, ip); |
8c3e10eb | 814 | pthread_mutex_lock(&top.active_symbols_lock); |
5807806a ACM |
815 | if (list_empty(&syme->node) || !syme->node.next) { |
816 | static bool first = true; | |
5b2bb75a | 817 | __list_insert_active_sym(syme); |
5807806a ACM |
818 | if (first) { |
819 | pthread_cond_broadcast(&top.active_symbols_cond); | |
820 | first = false; | |
821 | } | |
822 | } | |
8c3e10eb | 823 | pthread_mutex_unlock(&top.active_symbols_lock); |
5b2bb75a | 824 | } |
07800601 IM |
825 | } |
826 | ||
aece948f | 827 | static void perf_session__mmap_read_idx(struct perf_session *self, int idx) |
07800601 | 828 | { |
8d50e5b4 | 829 | struct perf_sample sample; |
8115d60c | 830 | union perf_event *event; |
5538beca | 831 | int ret; |
07800601 | 832 | |
aece948f | 833 | while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) { |
5538beca FW |
834 | ret = perf_session__parse_sample(self, event, &sample); |
835 | if (ret) { | |
836 | pr_err("Can't parse sample, err = %d\n", ret); | |
837 | continue; | |
838 | } | |
04391deb | 839 | |
5b2bb75a | 840 | if (event->header.type == PERF_RECORD_SAMPLE) |
8115d60c | 841 | perf_event__process_sample(event, &sample, self); |
5b2bb75a | 842 | else |
8115d60c | 843 | perf_event__process(event, &sample, self); |
07800601 | 844 | } |
07800601 IM |
845 | } |
846 | ||
d8f66248 | 847 | static void perf_session__mmap_read(struct perf_session *self) |
2f01190a | 848 | { |
70db7533 ACM |
849 | int i; |
850 | ||
aece948f ACM |
851 | for (i = 0; i < top.evlist->nr_mmaps; i++) |
852 | perf_session__mmap_read_idx(self, i); | |
2f01190a FW |
853 | } |
854 | ||
72cb7013 ACM |
855 | static void start_counters(struct perf_evlist *evlist) |
856 | { | |
857 | struct perf_evsel *counter; | |
7e4ff9e3 | 858 | |
72cb7013 ACM |
859 | list_for_each_entry(counter, &evlist->entries, node) { |
860 | struct perf_event_attr *attr = &counter->attr; | |
716c69fe | 861 | |
72cb7013 ACM |
862 | attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; |
863 | ||
8c3e10eb | 864 | if (top.freq) { |
72cb7013 ACM |
865 | attr->sample_type |= PERF_SAMPLE_PERIOD; |
866 | attr->freq = 1; | |
8c3e10eb | 867 | attr->sample_freq = top.freq; |
72cb7013 | 868 | } |
d6d901c2 | 869 | |
70db7533 ACM |
870 | if (evlist->nr_entries > 1) { |
871 | attr->sample_type |= PERF_SAMPLE_ID; | |
872 | attr->read_format |= PERF_FORMAT_ID; | |
873 | } | |
874 | ||
72cb7013 | 875 | attr->mmap = 1; |
5d2cd909 | 876 | attr->inherit = inherit; |
72cb7013 | 877 | try_again: |
8c3e10eb | 878 | if (perf_evsel__open(counter, top.evlist->cpus, |
5d2cd909 | 879 | top.evlist->threads, group) < 0) { |
d6d901c2 ZY |
880 | int err = errno; |
881 | ||
c286c419 ACM |
882 | if (err == EPERM || err == EACCES) { |
883 | ui__warning_paranoid(); | |
884 | goto out_err; | |
885 | } | |
d6d901c2 ZY |
886 | /* |
887 | * If it's cycles then fall back to hrtimer | |
888 | * based cpu-clock-tick sw counter, which | |
889 | * is always available even if no PMU support: | |
890 | */ | |
72cb7013 ACM |
891 | if (attr->type == PERF_TYPE_HARDWARE && |
892 | attr->config == PERF_COUNT_HW_CPU_CYCLES) { | |
d6d901c2 | 893 | if (verbose) |
c286c419 ACM |
894 | ui__warning("Cycles event not supported,\n" |
895 | "trying to fall back to cpu-clock-ticks\n"); | |
d6d901c2 ZY |
896 | |
897 | attr->type = PERF_TYPE_SOFTWARE; | |
898 | attr->config = PERF_COUNT_SW_CPU_CLOCK; | |
899 | goto try_again; | |
900 | } | |
c286c419 | 901 | |
ca6a4258 DA |
902 | if (err == ENOENT) { |
903 | ui__warning("The %s event is not supported.\n", | |
904 | event_name(counter)); | |
905 | goto out_err; | |
906 | } | |
907 | ||
c286c419 ACM |
908 | ui__warning("The sys_perf_event_open() syscall " |
909 | "returned with %d (%s). /bin/dmesg " | |
910 | "may provide additional information.\n" | |
911 | "No CONFIG_PERF_EVENTS=y kernel support " | |
912 | "configured?\n", err, strerror(err)); | |
913 | goto out_err; | |
d6d901c2 | 914 | } |
716c69fe | 915 | } |
70db7533 | 916 | |
c286c419 ACM |
917 | if (perf_evlist__mmap(evlist, mmap_pages, false) < 0) { |
918 | ui__warning("Failed to mmap with %d (%s)\n", | |
919 | errno, strerror(errno)); | |
920 | goto out_err; | |
921 | } | |
922 | ||
923 | return; | |
924 | ||
925 | out_err: | |
926 | exit_browser(0); | |
927 | exit(0); | |
716c69fe IM |
928 | } |
929 | ||
930 | static int __cmd_top(void) | |
931 | { | |
932 | pthread_t thread; | |
fb7d0b3c | 933 | int ret __used; |
d8f66248 | 934 | /* |
b3165f41 ACM |
935 | * FIXME: perf_session__new should allow passing a O_MMAP, so that all this |
936 | * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. | |
d8f66248 | 937 | */ |
21ef97f0 | 938 | struct perf_session *session = perf_session__new(NULL, O_WRONLY, false, false, NULL); |
b3165f41 ACM |
939 | if (session == NULL) |
940 | return -ENOMEM; | |
07800601 | 941 | |
8c3e10eb | 942 | if (top.target_tid != -1) |
7c940c18 ACM |
943 | perf_event__synthesize_thread_map(top.evlist->threads, |
944 | perf_event__process, session); | |
5b2bb75a | 945 | else |
8115d60c | 946 | perf_event__synthesize_threads(perf_event__process, session); |
5b2bb75a | 947 | |
8c3e10eb | 948 | start_counters(top.evlist); |
a91e5431 ACM |
949 | session->evlist = top.evlist; |
950 | perf_session__update_sample_type(session); | |
07800601 | 951 | |
2f01190a | 952 | /* Wait for a minimal set of events before starting the snapshot */ |
8c3e10eb | 953 | poll(top.evlist->pollfd, top.evlist->nr_fds, 100); |
2f01190a | 954 | |
d8f66248 | 955 | perf_session__mmap_read(session); |
2f01190a | 956 | |
c0443df1 ACM |
957 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
958 | display_thread), session)) { | |
07800601 IM |
959 | printf("Could not create display thread.\n"); |
960 | exit(-1); | |
961 | } | |
962 | ||
963 | if (realtime_prio) { | |
964 | struct sched_param param; | |
965 | ||
966 | param.sched_priority = realtime_prio; | |
967 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { | |
968 | printf("Could not set realtime priority.\n"); | |
969 | exit(-1); | |
970 | } | |
971 | } | |
972 | ||
973 | while (1) { | |
8c3e10eb | 974 | u64 hits = top.samples; |
07800601 | 975 | |
d8f66248 | 976 | perf_session__mmap_read(session); |
07800601 | 977 | |
8c3e10eb ACM |
978 | if (hits == top.samples) |
979 | ret = poll(top.evlist->pollfd, top.evlist->nr_fds, 100); | |
07800601 IM |
980 | } |
981 | ||
982 | return 0; | |
983 | } | |
b456bae0 IM |
984 | |
985 | static const char * const top_usage[] = { | |
986 | "perf top [<options>]", | |
987 | NULL | |
988 | }; | |
989 | ||
b456bae0 | 990 | static const struct option options[] = { |
8c3e10eb | 991 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 TG |
992 | "event selector. use 'perf list' to list available events", |
993 | parse_events), | |
b456bae0 IM |
994 | OPT_INTEGER('c', "count", &default_interval, |
995 | "event period to sample"), | |
8c3e10eb | 996 | OPT_INTEGER('p', "pid", &top.target_pid, |
d6d901c2 | 997 | "profile events on existing process id"), |
8c3e10eb | 998 | OPT_INTEGER('t', "tid", &top.target_tid, |
d6d901c2 | 999 | "profile events on existing thread id"), |
b456bae0 IM |
1000 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
1001 | "system-wide collection from all CPUs"), | |
8c3e10eb | 1002 | OPT_STRING('C', "cpu", &top.cpu_list, "cpu", |
c45c6ea2 | 1003 | "list of cpus to monitor"), |
b32d133a ACM |
1004 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1005 | "file", "vmlinux pathname"), | |
8c3e10eb | 1006 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1007 | "hide kernel symbols"), |
1967936d | 1008 | OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"), |
b456bae0 IM |
1009 | OPT_INTEGER('r', "realtime", &realtime_prio, |
1010 | "collect data with this RT SCHED_FIFO priority"), | |
8c3e10eb | 1011 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 IM |
1012 | "number of seconds to delay between refreshes"), |
1013 | OPT_BOOLEAN('D', "dump-symtab", &dump_symtab, | |
1014 | "dump the symbol table used for profiling"), | |
8c3e10eb | 1015 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 IM |
1016 | "only display functions with more events than this"), |
1017 | OPT_BOOLEAN('g', "group", &group, | |
1018 | "put the counters into a counter group"), | |
0fdc7e67 MG |
1019 | OPT_BOOLEAN('i', "inherit", &inherit, |
1020 | "child tasks inherit counters"), | |
923c42c1 | 1021 | OPT_STRING('s', "sym-annotate", &sym_filter, "symbol name", |
6cff0e8d | 1022 | "symbol to annotate"), |
8c3e10eb | 1023 | OPT_BOOLEAN('z', "zero", &top.zero, |
b456bae0 | 1024 | "zero history across updates"), |
8c3e10eb | 1025 | OPT_INTEGER('F', "freq", &top.freq, |
b456bae0 | 1026 | "profile at this frequency"), |
8c3e10eb | 1027 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1028 | "display this many functions"), |
8c3e10eb | 1029 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1030 | "hide user symbols"), |
c0443df1 ACM |
1031 | OPT_BOOLEAN(0, "tui", &use_tui, "Use the TUI interface"), |
1032 | OPT_BOOLEAN(0, "stdio", &use_stdio, "Use the stdio interface"), | |
c0555642 | 1033 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1034 | "be more verbose (show counter open errors, etc)"), |
b456bae0 IM |
1035 | OPT_END() |
1036 | }; | |
1037 | ||
f37a291c | 1038 | int cmd_top(int argc, const char **argv, const char *prefix __used) |
b456bae0 | 1039 | { |
69aad6f1 ACM |
1040 | struct perf_evsel *pos; |
1041 | int status = -ENOMEM; | |
b456bae0 | 1042 | |
8c3e10eb ACM |
1043 | top.evlist = perf_evlist__new(NULL, NULL); |
1044 | if (top.evlist == NULL) | |
361c99a6 ACM |
1045 | return -ENOMEM; |
1046 | ||
b456bae0 IM |
1047 | page_size = sysconf(_SC_PAGE_SIZE); |
1048 | ||
b456bae0 IM |
1049 | argc = parse_options(argc, argv, options, top_usage, 0); |
1050 | if (argc) | |
1051 | usage_with_options(top_usage, options); | |
1052 | ||
c0443df1 ACM |
1053 | /* |
1054 | * XXX For now start disabled, only using TUI if explicitely asked for. | |
1055 | * Change that when handle_keys equivalent gets written, live annotation | |
1056 | * done, etc. | |
1057 | */ | |
1058 | use_browser = 0; | |
1059 | ||
1060 | if (use_stdio) | |
1061 | use_browser = 0; | |
1062 | else if (use_tui) | |
1063 | use_browser = 1; | |
1064 | ||
1065 | setup_browser(false); | |
1066 | ||
b456bae0 | 1067 | /* CPU and PID are mutually exclusive */ |
8c3e10eb | 1068 | if (top.target_tid > 0 && top.cpu_list) { |
b456bae0 IM |
1069 | printf("WARNING: PID switch overriding CPU\n"); |
1070 | sleep(1); | |
8c3e10eb | 1071 | top.cpu_list = NULL; |
b456bae0 IM |
1072 | } |
1073 | ||
8c3e10eb ACM |
1074 | if (top.target_pid != -1) |
1075 | top.target_tid = top.target_pid; | |
7e2ed097 | 1076 | |
8c3e10eb ACM |
1077 | if (perf_evlist__create_maps(top.evlist, top.target_pid, |
1078 | top.target_tid, top.cpu_list) < 0) | |
7e2ed097 ACM |
1079 | usage_with_options(top_usage, options); |
1080 | ||
8c3e10eb ACM |
1081 | if (!top.evlist->nr_entries && |
1082 | perf_evlist__add_default(top.evlist) < 0) { | |
69aad6f1 ACM |
1083 | pr_err("Not enough memory for event selector list\n"); |
1084 | return -ENOMEM; | |
1085 | } | |
5a8e5a30 | 1086 | |
8c3e10eb ACM |
1087 | if (top.delay_secs < 1) |
1088 | top.delay_secs = 1; | |
2f335a02 | 1089 | |
7e4ff9e3 MG |
1090 | /* |
1091 | * User specified count overrides default frequency. | |
1092 | */ | |
1093 | if (default_interval) | |
8c3e10eb ACM |
1094 | top.freq = 0; |
1095 | else if (top.freq) { | |
1096 | default_interval = top.freq; | |
7e4ff9e3 MG |
1097 | } else { |
1098 | fprintf(stderr, "frequency and count are zero, aborting\n"); | |
1099 | exit(EXIT_FAILURE); | |
1100 | } | |
1101 | ||
8c3e10eb ACM |
1102 | list_for_each_entry(pos, &top.evlist->entries, node) { |
1103 | if (perf_evsel__alloc_fd(pos, top.evlist->cpus->nr, | |
1104 | top.evlist->threads->nr) < 0) | |
69aad6f1 ACM |
1105 | goto out_free_fd; |
1106 | /* | |
1107 | * Fill in the ones not specifically initialized via -c: | |
1108 | */ | |
1109 | if (pos->attr.sample_period) | |
1110 | continue; | |
1111 | ||
1112 | pos->attr.sample_period = default_interval; | |
1113 | } | |
1114 | ||
8c3e10eb ACM |
1115 | if (perf_evlist__alloc_pollfd(top.evlist) < 0 || |
1116 | perf_evlist__alloc_mmap(top.evlist) < 0) | |
5c581041 ACM |
1117 | goto out_free_fd; |
1118 | ||
8c3e10eb | 1119 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
cc841580 | 1120 | |
36532461 | 1121 | symbol_conf.priv_size = (sizeof(struct sym_entry) + sizeof(struct annotation) + |
8c3e10eb | 1122 | (top.evlist->nr_entries + 1) * sizeof(unsigned long)); |
69aad6f1 ACM |
1123 | |
1124 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1125 | if (symbol__init() < 0) | |
1126 | return -1; | |
1127 | ||
13cc5079 | 1128 | get_term_dimensions(&winsize); |
8c3e10eb | 1129 | if (top.print_entries == 0) { |
13cc5079 | 1130 | update_print_entries(&winsize); |
3b6ed988 ACM |
1131 | signal(SIGWINCH, sig_winch_handler); |
1132 | } | |
1133 | ||
69aad6f1 ACM |
1134 | status = __cmd_top(); |
1135 | out_free_fd: | |
8c3e10eb | 1136 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1137 | |
1138 | return status; | |
b456bae0 | 1139 | } |