Root/
1 | /* |
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 | * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> |
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) |
19 | */ |
20 | #include "builtin.h" |
21 | |
22 | #include "perf.h" |
23 | |
24 | #include "util/annotate.h" |
25 | #include "util/cache.h" |
26 | #include "util/color.h" |
27 | #include "util/evlist.h" |
28 | #include "util/evsel.h" |
29 | #include "util/machine.h" |
30 | #include "util/session.h" |
31 | #include "util/symbol.h" |
32 | #include "util/thread.h" |
33 | #include "util/thread_map.h" |
34 | #include "util/top.h" |
35 | #include "util/util.h" |
36 | #include <linux/rbtree.h> |
37 | #include "util/parse-options.h" |
38 | #include "util/parse-events.h" |
39 | #include "util/cpumap.h" |
40 | #include "util/xyarray.h" |
41 | #include "util/sort.h" |
42 | #include "util/intlist.h" |
43 | #include "arch/common.h" |
44 | |
45 | #include "util/debug.h" |
46 | |
47 | #include <assert.h> |
48 | #include <elf.h> |
49 | #include <fcntl.h> |
50 | |
51 | #include <stdio.h> |
52 | #include <termios.h> |
53 | #include <unistd.h> |
54 | #include <inttypes.h> |
55 | |
56 | #include <errno.h> |
57 | #include <time.h> |
58 | #include <sched.h> |
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> |
66 | #include <sys/utsname.h> |
67 | #include <sys/mman.h> |
68 | |
69 | #include <linux/unistd.h> |
70 | #include <linux/types.h> |
71 | |
72 | static volatile int done; |
73 | |
74 | #define HEADER_LINE_NR 5 |
75 | |
76 | static void perf_top__update_print_entries(struct perf_top *top) |
77 | { |
78 | top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; |
79 | } |
80 | |
81 | static void perf_top__sig_winch(int sig __maybe_unused, |
82 | siginfo_t *info __maybe_unused, void *arg) |
83 | { |
84 | struct perf_top *top = arg; |
85 | |
86 | get_term_dimensions(&top->winsize); |
87 | perf_top__update_print_entries(top); |
88 | } |
89 | |
90 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
91 | { |
92 | struct symbol *sym; |
93 | struct annotation *notes; |
94 | struct map *map; |
95 | int err = -1; |
96 | |
97 | if (!he || !he->ms.sym) |
98 | return -1; |
99 | |
100 | sym = he->ms.sym; |
101 | map = he->ms.map; |
102 | |
103 | /* |
104 | * We can't annotate with just /proc/kallsyms |
105 | */ |
106 | if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && |
107 | !dso__is_kcore(map->dso)) { |
108 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
109 | "path\n", sym->name); |
110 | sleep(1); |
111 | return -1; |
112 | } |
113 | |
114 | notes = symbol__annotation(sym); |
115 | if (notes->src != NULL) { |
116 | pthread_mutex_lock(¬es->lock); |
117 | goto out_assign; |
118 | } |
119 | |
120 | pthread_mutex_lock(¬es->lock); |
121 | |
122 | if (symbol__alloc_hist(sym) < 0) { |
123 | pthread_mutex_unlock(¬es->lock); |
124 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
125 | sym->name); |
126 | sleep(1); |
127 | return err; |
128 | } |
129 | |
130 | err = symbol__annotate(sym, map, 0); |
131 | if (err == 0) { |
132 | out_assign: |
133 | top->sym_filter_entry = he; |
134 | } |
135 | |
136 | pthread_mutex_unlock(¬es->lock); |
137 | return err; |
138 | } |
139 | |
140 | static void __zero_source_counters(struct hist_entry *he) |
141 | { |
142 | struct symbol *sym = he->ms.sym; |
143 | symbol__annotate_zero_histograms(sym); |
144 | } |
145 | |
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 | |
173 | static void perf_top__record_precise_ip(struct perf_top *top, |
174 | struct hist_entry *he, |
175 | int counter, u64 ip) |
176 | { |
177 | struct annotation *notes; |
178 | struct symbol *sym; |
179 | int err = 0; |
180 | |
181 | if (he == NULL || he->ms.sym == NULL || |
182 | ((top->sym_filter_entry == NULL || |
183 | top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) |
184 | return; |
185 | |
186 | sym = he->ms.sym; |
187 | notes = symbol__annotation(sym); |
188 | |
189 | if (pthread_mutex_trylock(¬es->lock)) |
190 | return; |
191 | |
192 | ip = he->ms.map->map_ip(he->ms.map, ip); |
193 | |
194 | if (ui__has_annotation()) |
195 | err = hist_entry__inc_addr_samples(he, counter, ip); |
196 | |
197 | pthread_mutex_unlock(¬es->lock); |
198 | |
199 | /* |
200 | * This function is now called with he->hists->lock held. |
201 | * Release it before going to sleep. |
202 | */ |
203 | pthread_mutex_unlock(&he->hists->lock); |
204 | |
205 | if (err == -ERANGE && !he->ms.map->erange_warned) |
206 | ui__warn_map_erange(he->ms.map, sym, ip); |
207 | else if (err == -ENOMEM) { |
208 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
209 | sym->name); |
210 | sleep(1); |
211 | } |
212 | |
213 | pthread_mutex_lock(&he->hists->lock); |
214 | } |
215 | |
216 | static void perf_top__show_details(struct perf_top *top) |
217 | { |
218 | struct hist_entry *he = top->sym_filter_entry; |
219 | struct annotation *notes; |
220 | struct symbol *symbol; |
221 | int more; |
222 | |
223 | if (!he) |
224 | return; |
225 | |
226 | symbol = he->ms.sym; |
227 | notes = symbol__annotation(symbol); |
228 | |
229 | pthread_mutex_lock(¬es->lock); |
230 | |
231 | if (notes->src == NULL) |
232 | goto out_unlock; |
233 | |
234 | printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); |
235 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); |
236 | |
237 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, |
238 | 0, top->sym_pcnt_filter, top->print_entries, 4); |
239 | if (top->zero) |
240 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); |
241 | else |
242 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); |
243 | if (more != 0) |
244 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
245 | out_unlock: |
246 | pthread_mutex_unlock(¬es->lock); |
247 | } |
248 | |
249 | static void perf_top__print_sym_table(struct perf_top *top) |
250 | { |
251 | char bf[160]; |
252 | int printed = 0; |
253 | const int win_width = top->winsize.ws_col - 1; |
254 | |
255 | puts(CONSOLE_CLEAR); |
256 | |
257 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
258 | printf("%s\n", bf); |
259 | |
260 | perf_top__reset_sample_counters(top); |
261 | |
262 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
263 | |
264 | if (top->sym_evsel->hists.stats.nr_lost_warned != |
265 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { |
266 | top->sym_evsel->hists.stats.nr_lost_warned = |
267 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; |
268 | color_fprintf(stdout, PERF_COLOR_RED, |
269 | "WARNING: LOST %d chunks, Check IO/CPU overload", |
270 | top->sym_evsel->hists.stats.nr_lost_warned); |
271 | ++printed; |
272 | } |
273 | |
274 | if (top->sym_filter_entry) { |
275 | perf_top__show_details(top); |
276 | return; |
277 | } |
278 | |
279 | hists__collapse_resort(&top->sym_evsel->hists, NULL); |
280 | hists__output_resort(&top->sym_evsel->hists); |
281 | hists__decay_entries(&top->sym_evsel->hists, |
282 | top->hide_user_symbols, |
283 | top->hide_kernel_symbols); |
284 | hists__output_recalc_col_len(&top->sym_evsel->hists, |
285 | top->print_entries - printed); |
286 | putchar('\n'); |
287 | hists__fprintf(&top->sym_evsel->hists, false, |
288 | top->print_entries - printed, win_width, |
289 | top->min_percent, stdout); |
290 | } |
291 | |
292 | static void prompt_integer(int *target, const char *msg) |
293 | { |
294 | char *buf = malloc(0), *p; |
295 | size_t dummy = 0; |
296 | int tmp; |
297 | |
298 | fprintf(stdout, "\n%s: ", msg); |
299 | if (getline(&buf, &dummy, stdin) < 0) |
300 | return; |
301 | |
302 | p = strchr(buf, '\n'); |
303 | if (p) |
304 | *p = 0; |
305 | |
306 | p = buf; |
307 | while(*p) { |
308 | if (!isdigit(*p)) |
309 | goto out_free; |
310 | p++; |
311 | } |
312 | tmp = strtoul(buf, NULL, 10); |
313 | *target = tmp; |
314 | out_free: |
315 | free(buf); |
316 | } |
317 | |
318 | static void prompt_percent(int *target, const char *msg) |
319 | { |
320 | int tmp = 0; |
321 | |
322 | prompt_integer(&tmp, msg); |
323 | if (tmp >= 0 && tmp <= 100) |
324 | *target = tmp; |
325 | } |
326 | |
327 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
328 | { |
329 | char *buf = malloc(0), *p; |
330 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
331 | struct rb_node *next; |
332 | size_t dummy = 0; |
333 | |
334 | /* zero counters of active symbol */ |
335 | if (syme) { |
336 | __zero_source_counters(syme); |
337 | top->sym_filter_entry = NULL; |
338 | } |
339 | |
340 | fprintf(stdout, "\n%s: ", msg); |
341 | if (getline(&buf, &dummy, stdin) < 0) |
342 | goto out_free; |
343 | |
344 | p = strchr(buf, '\n'); |
345 | if (p) |
346 | *p = 0; |
347 | |
348 | next = rb_first(&top->sym_evsel->hists.entries); |
349 | while (next) { |
350 | n = rb_entry(next, struct hist_entry, rb_node); |
351 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { |
352 | found = n; |
353 | break; |
354 | } |
355 | next = rb_next(&n->rb_node); |
356 | } |
357 | |
358 | if (!found) { |
359 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
360 | sleep(1); |
361 | } else |
362 | perf_top__parse_source(top, found); |
363 | |
364 | out_free: |
365 | free(buf); |
366 | } |
367 | |
368 | static void perf_top__print_mapped_keys(struct perf_top *top) |
369 | { |
370 | char *name = NULL; |
371 | |
372 | if (top->sym_filter_entry) { |
373 | struct symbol *sym = top->sym_filter_entry->ms.sym; |
374 | name = sym->name; |
375 | } |
376 | |
377 | fprintf(stdout, "\nMapped keys:\n"); |
378 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
379 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); |
380 | |
381 | if (top->evlist->nr_entries > 1) |
382 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); |
383 | |
384 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
385 | |
386 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
387 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
388 | fprintf(stdout, "\t[S] stop annotation.\n"); |
389 | |
390 | fprintf(stdout, |
391 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
392 | top->hide_kernel_symbols ? "yes" : "no"); |
393 | fprintf(stdout, |
394 | "\t[U] hide user symbols. \t(%s)\n", |
395 | top->hide_user_symbols ? "yes" : "no"); |
396 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); |
397 | fprintf(stdout, "\t[qQ] quit.\n"); |
398 | } |
399 | |
400 | static int perf_top__key_mapped(struct perf_top *top, int c) |
401 | { |
402 | switch (c) { |
403 | case 'd': |
404 | case 'e': |
405 | case 'f': |
406 | case 'z': |
407 | case 'q': |
408 | case 'Q': |
409 | case 'K': |
410 | case 'U': |
411 | case 'F': |
412 | case 's': |
413 | case 'S': |
414 | return 1; |
415 | case 'E': |
416 | return top->evlist->nr_entries > 1 ? 1 : 0; |
417 | default: |
418 | break; |
419 | } |
420 | |
421 | return 0; |
422 | } |
423 | |
424 | static bool perf_top__handle_keypress(struct perf_top *top, int c) |
425 | { |
426 | bool ret = true; |
427 | |
428 | if (!perf_top__key_mapped(top, c)) { |
429 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
430 | struct termios tc, save; |
431 | |
432 | perf_top__print_mapped_keys(top); |
433 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
434 | fflush(stdout); |
435 | |
436 | tcgetattr(0, &save); |
437 | tc = save; |
438 | tc.c_lflag &= ~(ICANON | ECHO); |
439 | tc.c_cc[VMIN] = 0; |
440 | tc.c_cc[VTIME] = 0; |
441 | tcsetattr(0, TCSANOW, &tc); |
442 | |
443 | poll(&stdin_poll, 1, -1); |
444 | c = getc(stdin); |
445 | |
446 | tcsetattr(0, TCSAFLUSH, &save); |
447 | if (!perf_top__key_mapped(top, c)) |
448 | return ret; |
449 | } |
450 | |
451 | switch (c) { |
452 | case 'd': |
453 | prompt_integer(&top->delay_secs, "Enter display delay"); |
454 | if (top->delay_secs < 1) |
455 | top->delay_secs = 1; |
456 | break; |
457 | case 'e': |
458 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
459 | if (top->print_entries == 0) { |
460 | struct sigaction act = { |
461 | .sa_sigaction = perf_top__sig_winch, |
462 | .sa_flags = SA_SIGINFO, |
463 | }; |
464 | perf_top__sig_winch(SIGWINCH, NULL, top); |
465 | sigaction(SIGWINCH, &act, NULL); |
466 | } else { |
467 | signal(SIGWINCH, SIG_DFL); |
468 | } |
469 | break; |
470 | case 'E': |
471 | if (top->evlist->nr_entries > 1) { |
472 | /* Select 0 as the default event: */ |
473 | int counter = 0; |
474 | |
475 | fprintf(stderr, "\nAvailable events:"); |
476 | |
477 | evlist__for_each(top->evlist, top->sym_evsel) |
478 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); |
479 | |
480 | prompt_integer(&counter, "Enter details event counter"); |
481 | |
482 | if (counter >= top->evlist->nr_entries) { |
483 | top->sym_evsel = perf_evlist__first(top->evlist); |
484 | fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); |
485 | sleep(1); |
486 | break; |
487 | } |
488 | evlist__for_each(top->evlist, top->sym_evsel) |
489 | if (top->sym_evsel->idx == counter) |
490 | break; |
491 | } else |
492 | top->sym_evsel = perf_evlist__first(top->evlist); |
493 | break; |
494 | case 'f': |
495 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
496 | break; |
497 | case 'F': |
498 | prompt_percent(&top->sym_pcnt_filter, |
499 | "Enter details display event filter (percent)"); |
500 | break; |
501 | case 'K': |
502 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
503 | break; |
504 | case 'q': |
505 | case 'Q': |
506 | printf("exiting.\n"); |
507 | if (top->dump_symtab) |
508 | perf_session__fprintf_dsos(top->session, stderr); |
509 | ret = false; |
510 | break; |
511 | case 's': |
512 | perf_top__prompt_symbol(top, "Enter details symbol"); |
513 | break; |
514 | case 'S': |
515 | if (!top->sym_filter_entry) |
516 | break; |
517 | else { |
518 | struct hist_entry *syme = top->sym_filter_entry; |
519 | |
520 | top->sym_filter_entry = NULL; |
521 | __zero_source_counters(syme); |
522 | } |
523 | break; |
524 | case 'U': |
525 | top->hide_user_symbols = !top->hide_user_symbols; |
526 | break; |
527 | case 'z': |
528 | top->zero = !top->zero; |
529 | break; |
530 | default: |
531 | break; |
532 | } |
533 | |
534 | return ret; |
535 | } |
536 | |
537 | static void perf_top__sort_new_samples(void *arg) |
538 | { |
539 | struct perf_top *t = arg; |
540 | perf_top__reset_sample_counters(t); |
541 | |
542 | if (t->evlist->selected != NULL) |
543 | t->sym_evsel = t->evlist->selected; |
544 | |
545 | hists__collapse_resort(&t->sym_evsel->hists, NULL); |
546 | hists__output_resort(&t->sym_evsel->hists); |
547 | hists__decay_entries(&t->sym_evsel->hists, |
548 | t->hide_user_symbols, |
549 | t->hide_kernel_symbols); |
550 | } |
551 | |
552 | static void *display_thread_tui(void *arg) |
553 | { |
554 | struct perf_evsel *pos; |
555 | struct perf_top *top = arg; |
556 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
557 | struct hist_browser_timer hbt = { |
558 | .timer = perf_top__sort_new_samples, |
559 | .arg = top, |
560 | .refresh = top->delay_secs, |
561 | }; |
562 | |
563 | perf_top__sort_new_samples(top); |
564 | |
565 | /* |
566 | * Initialize the uid_filter_str, in the future the TUI will allow |
567 | * Zooming in/out UIDs. For now juse use whatever the user passed |
568 | * via --uid. |
569 | */ |
570 | evlist__for_each(top->evlist, pos) |
571 | pos->hists.uid_filter_str = top->record_opts.target.uid_str; |
572 | |
573 | perf_evlist__tui_browse_hists(top->evlist, help, &hbt, top->min_percent, |
574 | &top->session->header.env); |
575 | |
576 | done = 1; |
577 | return NULL; |
578 | } |
579 | |
580 | static void *display_thread(void *arg) |
581 | { |
582 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
583 | struct termios tc, save; |
584 | struct perf_top *top = arg; |
585 | int delay_msecs, c; |
586 | |
587 | tcgetattr(0, &save); |
588 | tc = save; |
589 | tc.c_lflag &= ~(ICANON | ECHO); |
590 | tc.c_cc[VMIN] = 0; |
591 | tc.c_cc[VTIME] = 0; |
592 | |
593 | pthread__unblock_sigwinch(); |
594 | repeat: |
595 | delay_msecs = top->delay_secs * 1000; |
596 | tcsetattr(0, TCSANOW, &tc); |
597 | /* trash return*/ |
598 | getc(stdin); |
599 | |
600 | while (!done) { |
601 | perf_top__print_sym_table(top); |
602 | /* |
603 | * Either timeout expired or we got an EINTR due to SIGWINCH, |
604 | * refresh screen in both cases. |
605 | */ |
606 | switch (poll(&stdin_poll, 1, delay_msecs)) { |
607 | case 0: |
608 | continue; |
609 | case -1: |
610 | if (errno == EINTR) |
611 | continue; |
612 | /* Fall trhu */ |
613 | default: |
614 | c = getc(stdin); |
615 | tcsetattr(0, TCSAFLUSH, &save); |
616 | |
617 | if (perf_top__handle_keypress(top, c)) |
618 | goto repeat; |
619 | done = 1; |
620 | } |
621 | } |
622 | |
623 | return NULL; |
624 | } |
625 | |
626 | static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym) |
627 | { |
628 | const char *name = sym->name; |
629 | |
630 | /* |
631 | * ppc64 uses function descriptors and appends a '.' to the |
632 | * start of every instruction address. Remove it. |
633 | */ |
634 | if (name[0] == '.') |
635 | name++; |
636 | |
637 | if (!strcmp(name, "_text") || |
638 | !strcmp(name, "_etext") || |
639 | !strcmp(name, "_sinittext") || |
640 | !strncmp("init_module", name, 11) || |
641 | !strncmp("cleanup_module", name, 14) || |
642 | strstr(name, "_text_start") || |
643 | strstr(name, "_text_end")) |
644 | return 1; |
645 | |
646 | if (symbol__is_idle(sym)) |
647 | sym->ignore = true; |
648 | |
649 | return 0; |
650 | } |
651 | |
652 | static int hist_iter__top_callback(struct hist_entry_iter *iter, |
653 | struct addr_location *al, bool single, |
654 | void *arg) |
655 | { |
656 | struct perf_top *top = arg; |
657 | struct hist_entry *he = iter->he; |
658 | struct perf_evsel *evsel = iter->evsel; |
659 | |
660 | if (sort__has_sym && single) { |
661 | u64 ip = al->addr; |
662 | |
663 | if (al->map) |
664 | ip = al->map->unmap_ip(al->map, ip); |
665 | |
666 | perf_top__record_precise_ip(top, he, evsel->idx, ip); |
667 | } |
668 | |
669 | return 0; |
670 | } |
671 | |
672 | static void perf_event__process_sample(struct perf_tool *tool, |
673 | const union perf_event *event, |
674 | struct perf_evsel *evsel, |
675 | struct perf_sample *sample, |
676 | struct machine *machine) |
677 | { |
678 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
679 | struct addr_location al; |
680 | int err; |
681 | |
682 | if (!machine && perf_guest) { |
683 | static struct intlist *seen; |
684 | |
685 | if (!seen) |
686 | seen = intlist__new(NULL); |
687 | |
688 | if (!intlist__has_entry(seen, sample->pid)) { |
689 | pr_err("Can't find guest [%d]'s kernel information\n", |
690 | sample->pid); |
691 | intlist__add(seen, sample->pid); |
692 | } |
693 | return; |
694 | } |
695 | |
696 | if (!machine) { |
697 | pr_err("%u unprocessable samples recorded.\r", |
698 | top->session->stats.nr_unprocessable_samples++); |
699 | return; |
700 | } |
701 | |
702 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
703 | top->exact_samples++; |
704 | |
705 | if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) |
706 | return; |
707 | |
708 | if (!top->kptr_restrict_warned && |
709 | symbol_conf.kptr_restrict && |
710 | al.cpumode == PERF_RECORD_MISC_KERNEL) { |
711 | ui__warning( |
712 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" |
713 | "Check /proc/sys/kernel/kptr_restrict.\n\n" |
714 | "Kernel%s samples will not be resolved.\n", |
715 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? |
716 | " modules" : ""); |
717 | if (use_browser <= 0) |
718 | sleep(5); |
719 | top->kptr_restrict_warned = true; |
720 | } |
721 | |
722 | if (al.sym == NULL) { |
723 | const char *msg = "Kernel samples will not be resolved.\n"; |
724 | /* |
725 | * As we do lazy loading of symtabs we only will know if the |
726 | * specified vmlinux file is invalid when we actually have a |
727 | * hit in kernel space and then try to load it. So if we get |
728 | * here and there are _no_ symbols in the DSO backing the |
729 | * kernel map, bail out. |
730 | * |
731 | * We may never get here, for instance, if we use -K/ |
732 | * --hide-kernel-symbols, even if the user specifies an |
733 | * invalid --vmlinux ;-) |
734 | */ |
735 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
736 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
737 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
738 | if (symbol_conf.vmlinux_name) { |
739 | ui__warning("The %s file can't be used.\n%s", |
740 | symbol_conf.vmlinux_name, msg); |
741 | } else { |
742 | ui__warning("A vmlinux file was not found.\n%s", |
743 | msg); |
744 | } |
745 | |
746 | if (use_browser <= 0) |
747 | sleep(5); |
748 | top->vmlinux_warned = true; |
749 | } |
750 | } |
751 | |
752 | if (al.sym == NULL || !al.sym->ignore) { |
753 | struct hist_entry_iter iter = { |
754 | .add_entry_cb = hist_iter__top_callback, |
755 | }; |
756 | |
757 | if (symbol_conf.cumulate_callchain) |
758 | iter.ops = &hist_iter_cumulative; |
759 | else |
760 | iter.ops = &hist_iter_normal; |
761 | |
762 | pthread_mutex_lock(&evsel->hists.lock); |
763 | |
764 | err = hist_entry_iter__add(&iter, &al, evsel, sample, |
765 | top->max_stack, top); |
766 | if (err < 0) |
767 | pr_err("Problem incrementing symbol period, skipping event\n"); |
768 | |
769 | pthread_mutex_unlock(&evsel->hists.lock); |
770 | } |
771 | |
772 | return; |
773 | } |
774 | |
775 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
776 | { |
777 | struct perf_sample sample; |
778 | struct perf_evsel *evsel; |
779 | struct perf_session *session = top->session; |
780 | union perf_event *event; |
781 | struct machine *machine; |
782 | u8 origin; |
783 | int ret; |
784 | |
785 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
786 | ret = perf_evlist__parse_sample(top->evlist, event, &sample); |
787 | if (ret) { |
788 | pr_err("Can't parse sample, err = %d\n", ret); |
789 | goto next_event; |
790 | } |
791 | |
792 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
793 | assert(evsel != NULL); |
794 | |
795 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
796 | |
797 | if (event->header.type == PERF_RECORD_SAMPLE) |
798 | ++top->samples; |
799 | |
800 | switch (origin) { |
801 | case PERF_RECORD_MISC_USER: |
802 | ++top->us_samples; |
803 | if (top->hide_user_symbols) |
804 | goto next_event; |
805 | machine = &session->machines.host; |
806 | break; |
807 | case PERF_RECORD_MISC_KERNEL: |
808 | ++top->kernel_samples; |
809 | if (top->hide_kernel_symbols) |
810 | goto next_event; |
811 | machine = &session->machines.host; |
812 | break; |
813 | case PERF_RECORD_MISC_GUEST_KERNEL: |
814 | ++top->guest_kernel_samples; |
815 | machine = perf_session__find_machine(session, |
816 | sample.pid); |
817 | break; |
818 | case PERF_RECORD_MISC_GUEST_USER: |
819 | ++top->guest_us_samples; |
820 | /* |
821 | * TODO: we don't process guest user from host side |
822 | * except simple counting. |
823 | */ |
824 | /* Fall thru */ |
825 | default: |
826 | goto next_event; |
827 | } |
828 | |
829 | |
830 | if (event->header.type == PERF_RECORD_SAMPLE) { |
831 | perf_event__process_sample(&top->tool, event, evsel, |
832 | &sample, machine); |
833 | } else if (event->header.type < PERF_RECORD_MAX) { |
834 | hists__inc_nr_events(&evsel->hists, event->header.type); |
835 | machine__process_event(machine, event, &sample); |
836 | } else |
837 | ++session->stats.nr_unknown_events; |
838 | next_event: |
839 | perf_evlist__mmap_consume(top->evlist, idx); |
840 | } |
841 | } |
842 | |
843 | static void perf_top__mmap_read(struct perf_top *top) |
844 | { |
845 | int i; |
846 | |
847 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
848 | perf_top__mmap_read_idx(top, i); |
849 | } |
850 | |
851 | static int perf_top__start_counters(struct perf_top *top) |
852 | { |
853 | char msg[512]; |
854 | struct perf_evsel *counter; |
855 | struct perf_evlist *evlist = top->evlist; |
856 | struct record_opts *opts = &top->record_opts; |
857 | |
858 | perf_evlist__config(evlist, opts); |
859 | |
860 | evlist__for_each(evlist, counter) { |
861 | try_again: |
862 | if (perf_evsel__open(counter, top->evlist->cpus, |
863 | top->evlist->threads) < 0) { |
864 | if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { |
865 | if (verbose) |
866 | ui__warning("%s\n", msg); |
867 | goto try_again; |
868 | } |
869 | |
870 | perf_evsel__open_strerror(counter, &opts->target, |
871 | errno, msg, sizeof(msg)); |
872 | ui__error("%s\n", msg); |
873 | goto out_err; |
874 | } |
875 | } |
876 | |
877 | if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { |
878 | ui__error("Failed to mmap with %d (%s)\n", |
879 | errno, strerror(errno)); |
880 | goto out_err; |
881 | } |
882 | |
883 | return 0; |
884 | |
885 | out_err: |
886 | return -1; |
887 | } |
888 | |
889 | static int perf_top__setup_sample_type(struct perf_top *top __maybe_unused) |
890 | { |
891 | if (!sort__has_sym) { |
892 | if (symbol_conf.use_callchain) { |
893 | ui__error("Selected -g but \"sym\" not present in --sort/-s."); |
894 | return -EINVAL; |
895 | } |
896 | } else if (callchain_param.mode != CHAIN_NONE) { |
897 | if (callchain_register_param(&callchain_param) < 0) { |
898 | ui__error("Can't register callchain params.\n"); |
899 | return -EINVAL; |
900 | } |
901 | } |
902 | |
903 | return 0; |
904 | } |
905 | |
906 | static int __cmd_top(struct perf_top *top) |
907 | { |
908 | struct record_opts *opts = &top->record_opts; |
909 | pthread_t thread; |
910 | int ret; |
911 | |
912 | top->session = perf_session__new(NULL, false, NULL); |
913 | if (top->session == NULL) |
914 | return -ENOMEM; |
915 | |
916 | machines__set_symbol_filter(&top->session->machines, symbol_filter); |
917 | |
918 | if (!objdump_path) { |
919 | ret = perf_session_env__lookup_objdump(&top->session->header.env); |
920 | if (ret) |
921 | goto out_delete; |
922 | } |
923 | |
924 | ret = perf_top__setup_sample_type(top); |
925 | if (ret) |
926 | goto out_delete; |
927 | |
928 | machine__synthesize_threads(&top->session->machines.host, &opts->target, |
929 | top->evlist->threads, false); |
930 | ret = perf_top__start_counters(top); |
931 | if (ret) |
932 | goto out_delete; |
933 | |
934 | top->session->evlist = top->evlist; |
935 | perf_session__set_id_hdr_size(top->session); |
936 | |
937 | /* |
938 | * When perf is starting the traced process, all the events (apart from |
939 | * group members) have enable_on_exec=1 set, so don't spoil it by |
940 | * prematurely enabling them. |
941 | * |
942 | * XXX 'top' still doesn't start workloads like record, trace, but should, |
943 | * so leave the check here. |
944 | */ |
945 | if (!target__none(&opts->target)) |
946 | perf_evlist__enable(top->evlist); |
947 | |
948 | /* Wait for a minimal set of events before starting the snapshot */ |
949 | poll(top->evlist->pollfd, top->evlist->nr_fds, 100); |
950 | |
951 | perf_top__mmap_read(top); |
952 | |
953 | ret = -1; |
954 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
955 | display_thread), top)) { |
956 | ui__error("Could not create display thread.\n"); |
957 | goto out_delete; |
958 | } |
959 | |
960 | if (top->realtime_prio) { |
961 | struct sched_param param; |
962 | |
963 | param.sched_priority = top->realtime_prio; |
964 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
965 | ui__error("Could not set realtime priority.\n"); |
966 | goto out_delete; |
967 | } |
968 | } |
969 | |
970 | while (!done) { |
971 | u64 hits = top->samples; |
972 | |
973 | perf_top__mmap_read(top); |
974 | |
975 | if (hits == top->samples) |
976 | ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); |
977 | } |
978 | |
979 | ret = 0; |
980 | out_delete: |
981 | perf_session__delete(top->session); |
982 | top->session = NULL; |
983 | |
984 | return ret; |
985 | } |
986 | |
987 | static int |
988 | callchain_opt(const struct option *opt, const char *arg, int unset) |
989 | { |
990 | symbol_conf.use_callchain = true; |
991 | return record_callchain_opt(opt, arg, unset); |
992 | } |
993 | |
994 | static int |
995 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) |
996 | { |
997 | symbol_conf.use_callchain = true; |
998 | return record_parse_callchain_opt(opt, arg, unset); |
999 | } |
1000 | |
1001 | static int perf_top_config(const char *var, const char *value, void *cb) |
1002 | { |
1003 | struct perf_top *top = cb; |
1004 | |
1005 | if (!strcmp(var, "top.call-graph")) |
1006 | return record_parse_callchain(value, &top->record_opts); |
1007 | if (!strcmp(var, "top.children")) { |
1008 | symbol_conf.cumulate_callchain = perf_config_bool(var, value); |
1009 | return 0; |
1010 | } |
1011 | |
1012 | return perf_default_config(var, value, cb); |
1013 | } |
1014 | |
1015 | static int |
1016 | parse_percent_limit(const struct option *opt, const char *arg, |
1017 | int unset __maybe_unused) |
1018 | { |
1019 | struct perf_top *top = opt->value; |
1020 | |
1021 | top->min_percent = strtof(arg, NULL); |
1022 | return 0; |
1023 | } |
1024 | |
1025 | int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) |
1026 | { |
1027 | int status = -1; |
1028 | char errbuf[BUFSIZ]; |
1029 | struct perf_top top = { |
1030 | .count_filter = 5, |
1031 | .delay_secs = 2, |
1032 | .record_opts = { |
1033 | .mmap_pages = UINT_MAX, |
1034 | .user_freq = UINT_MAX, |
1035 | .user_interval = ULLONG_MAX, |
1036 | .freq = 4000, /* 4 KHz */ |
1037 | .target = { |
1038 | .uses_mmap = true, |
1039 | }, |
1040 | }, |
1041 | .max_stack = PERF_MAX_STACK_DEPTH, |
1042 | .sym_pcnt_filter = 5, |
1043 | }; |
1044 | struct record_opts *opts = &top.record_opts; |
1045 | struct target *target = &opts->target; |
1046 | const struct option options[] = { |
1047 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
1048 | "event selector. use 'perf list' to list available events", |
1049 | parse_events_option), |
1050 | OPT_U64('c', "count", &opts->user_interval, "event period to sample"), |
1051 | OPT_STRING('p', "pid", &target->pid, "pid", |
1052 | "profile events on existing process id"), |
1053 | OPT_STRING('t', "tid", &target->tid, "tid", |
1054 | "profile events on existing thread id"), |
1055 | OPT_BOOLEAN('a', "all-cpus", &target->system_wide, |
1056 | "system-wide collection from all CPUs"), |
1057 | OPT_STRING('C', "cpu", &target->cpu_list, "cpu", |
1058 | "list of cpus to monitor"), |
1059 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1060 | "file", "vmlinux pathname"), |
1061 | OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, |
1062 | "don't load vmlinux even if found"), |
1063 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
1064 | "hide kernel symbols"), |
1065 | OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", |
1066 | "number of mmap data pages", |
1067 | perf_evlist__parse_mmap_pages), |
1068 | OPT_INTEGER('r', "realtime", &top.realtime_prio, |
1069 | "collect data with this RT SCHED_FIFO priority"), |
1070 | OPT_INTEGER('d', "delay", &top.delay_secs, |
1071 | "number of seconds to delay between refreshes"), |
1072 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
1073 | "dump the symbol table used for profiling"), |
1074 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
1075 | "only display functions with more events than this"), |
1076 | OPT_BOOLEAN(0, "group", &opts->group, |
1077 | "put the counters into a counter group"), |
1078 | OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, |
1079 | "child tasks do not inherit counters"), |
1080 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
1081 | "symbol to annotate"), |
1082 | OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), |
1083 | OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), |
1084 | OPT_INTEGER('E', "entries", &top.print_entries, |
1085 | "display this many functions"), |
1086 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
1087 | "hide user symbols"), |
1088 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1089 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), |
1090 | OPT_INCR('v', "verbose", &verbose, |
1091 | "be more verbose (show counter open errors, etc)"), |
1092 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1093 | "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." |
1094 | " Please refer the man page for the complete list."), |
1095 | OPT_STRING(0, "fields", &field_order, "key[,keys...]", |
1096 | "output field(s): overhead, period, sample plus all of sort keys"), |
1097 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, |
1098 | "Show a column with the number of samples"), |
1099 | OPT_CALLBACK_NOOPT('g', NULL, &top.record_opts, |
1100 | NULL, "enables call-graph recording", |
1101 | &callchain_opt), |
1102 | OPT_CALLBACK(0, "call-graph", &top.record_opts, |
1103 | "mode[,dump_size]", record_callchain_help, |
1104 | &parse_callchain_opt), |
1105 | OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, |
1106 | "Accumulate callchains of children and show total overhead as well"), |
1107 | OPT_INTEGER(0, "max-stack", &top.max_stack, |
1108 | "Set the maximum stack depth when parsing the callchain. " |
1109 | "Default: " __stringify(PERF_MAX_STACK_DEPTH)), |
1110 | OPT_CALLBACK(0, "ignore-callees", NULL, "regex", |
1111 | "ignore callees of these functions in call graphs", |
1112 | report_parse_ignore_callees_opt), |
1113 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1114 | "Show a column with the sum of periods"), |
1115 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", |
1116 | "only consider symbols in these dsos"), |
1117 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", |
1118 | "only consider symbols in these comms"), |
1119 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", |
1120 | "only consider these symbols"), |
1121 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1122 | "Interleave source code with assembly code (default)"), |
1123 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, |
1124 | "Display raw encoding of assembly instructions (default)"), |
1125 | OPT_STRING(0, "objdump", &objdump_path, "path", |
1126 | "objdump binary to use for disassembly and annotations"), |
1127 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", |
1128 | "Specify disassembler style (e.g. -M intel for intel syntax)"), |
1129 | OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), |
1130 | OPT_CALLBACK(0, "percent-limit", &top, "percent", |
1131 | "Don't show entries under that percent", parse_percent_limit), |
1132 | OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", |
1133 | "How to display percentage of filtered entries", parse_filter_percentage), |
1134 | OPT_END() |
1135 | }; |
1136 | const char * const top_usage[] = { |
1137 | "perf top [<options>]", |
1138 | NULL |
1139 | }; |
1140 | |
1141 | top.evlist = perf_evlist__new(); |
1142 | if (top.evlist == NULL) |
1143 | return -ENOMEM; |
1144 | |
1145 | perf_config(perf_top_config, &top); |
1146 | |
1147 | argc = parse_options(argc, argv, options, top_usage, 0); |
1148 | if (argc) |
1149 | usage_with_options(top_usage, options); |
1150 | |
1151 | sort__mode = SORT_MODE__TOP; |
1152 | /* display thread wants entries to be collapsed in a different tree */ |
1153 | sort__need_collapse = 1; |
1154 | |
1155 | if (setup_sorting() < 0) { |
1156 | if (sort_order) |
1157 | parse_options_usage(top_usage, options, "s", 1); |
1158 | if (field_order) |
1159 | parse_options_usage(sort_order ? NULL : top_usage, |
1160 | options, "fields", 0); |
1161 | goto out_delete_evlist; |
1162 | } |
1163 | |
1164 | if (top.use_stdio) |
1165 | use_browser = 0; |
1166 | else if (top.use_tui) |
1167 | use_browser = 1; |
1168 | |
1169 | setup_browser(false); |
1170 | |
1171 | status = target__validate(target); |
1172 | if (status) { |
1173 | target__strerror(target, status, errbuf, BUFSIZ); |
1174 | ui__warning("%s\n", errbuf); |
1175 | } |
1176 | |
1177 | status = target__parse_uid(target); |
1178 | if (status) { |
1179 | int saved_errno = errno; |
1180 | |
1181 | target__strerror(target, status, errbuf, BUFSIZ); |
1182 | ui__error("%s\n", errbuf); |
1183 | |
1184 | status = -saved_errno; |
1185 | goto out_delete_evlist; |
1186 | } |
1187 | |
1188 | if (target__none(target)) |
1189 | target->system_wide = true; |
1190 | |
1191 | if (perf_evlist__create_maps(top.evlist, target) < 0) |
1192 | usage_with_options(top_usage, options); |
1193 | |
1194 | if (!top.evlist->nr_entries && |
1195 | perf_evlist__add_default(top.evlist) < 0) { |
1196 | ui__error("Not enough memory for event selector list\n"); |
1197 | goto out_delete_evlist; |
1198 | } |
1199 | |
1200 | symbol_conf.nr_events = top.evlist->nr_entries; |
1201 | |
1202 | if (top.delay_secs < 1) |
1203 | top.delay_secs = 1; |
1204 | |
1205 | if (record_opts__config(opts)) { |
1206 | status = -EINVAL; |
1207 | goto out_delete_evlist; |
1208 | } |
1209 | |
1210 | top.sym_evsel = perf_evlist__first(top.evlist); |
1211 | |
1212 | if (!symbol_conf.use_callchain) { |
1213 | symbol_conf.cumulate_callchain = false; |
1214 | perf_hpp__cancel_cumulate(); |
1215 | } |
1216 | |
1217 | symbol_conf.priv_size = sizeof(struct annotation); |
1218 | |
1219 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); |
1220 | if (symbol__init() < 0) |
1221 | return -1; |
1222 | |
1223 | sort__setup_elide(stdout); |
1224 | |
1225 | get_term_dimensions(&top.winsize); |
1226 | if (top.print_entries == 0) { |
1227 | struct sigaction act = { |
1228 | .sa_sigaction = perf_top__sig_winch, |
1229 | .sa_flags = SA_SIGINFO, |
1230 | }; |
1231 | perf_top__update_print_entries(&top); |
1232 | sigaction(SIGWINCH, &act, NULL); |
1233 | } |
1234 | |
1235 | status = __cmd_top(&top); |
1236 | |
1237 | out_delete_evlist: |
1238 | perf_evlist__delete(top.evlist); |
1239 | |
1240 | return status; |
1241 | } |
1242 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9