blob: 72f6eb7b4173c86f84fcf3b001f6eb9ae1bdd8b4 [file] [log] [blame]
Ingo Molnar07800602009-04-20 15:00:56 +02001/*
Ingo Molnarbf9e1872009-06-02 23:37:05 +02002 * 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>
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03008 * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
Ingo Molnarbf9e1872009-06-02 23:37:05 +02009 *
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)
Ingo Molnar07800602009-04-20 15:00:56 +020019 */
Ingo Molnarbf9e1872009-06-02 23:37:05 +020020#include "builtin.h"
Ingo Molnar07800602009-04-20 15:00:56 +020021
Peter Zijlstra1a482f32009-05-23 18:28:58 +020022#include "perf.h"
Ingo Molnarbf9e1872009-06-02 23:37:05 +020023
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -020024#include "util/annotate.h"
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -020025#include "util/cache.h"
Ingo Molnar8fc03212009-06-04 15:19:47 +020026#include "util/color.h"
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -020027#include "util/evlist.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020028#include "util/evsel.h"
Arnaldo Carvalho de Melob0a7d1a2012-10-06 16:26:02 -030029#include "util/machine.h"
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -020030#include "util/session.h"
31#include "util/symbol.h"
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -030032#include "util/thread.h"
Arnaldo Carvalho de Melofd782602011-01-18 15:15:24 -020033#include "util/thread_map.h"
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -020034#include "util/top.h"
Ingo Molnar148be2c2009-04-27 08:02:14 +020035#include "util/util.h"
Arnaldo Carvalho de Melo43cbcd82009-07-01 12:28:37 -030036#include <linux/rbtree.h>
Ingo Molnarb456bae2009-05-26 09:17:18 +020037#include "util/parse-options.h"
38#include "util/parse-events.h"
Paul Mackerrasa12b51c2010-03-10 20:36:09 +110039#include "util/cpumap.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020040#include "util/xyarray.h"
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -030041#include "util/sort.h"
David Ahern6b118e92012-07-30 22:31:35 -060042#include "util/intlist.h"
Ingo Molnar07800602009-04-20 15:00:56 +020043
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +020044#include "util/debug.h"
45
Ingo Molnar07800602009-04-20 15:00:56 +020046#include <assert.h>
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -030047#include <elf.h>
Ingo Molnar07800602009-04-20 15:00:56 +020048#include <fcntl.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020049
Ingo Molnar07800602009-04-20 15:00:56 +020050#include <stdio.h>
Mike Galbraith923c42c2009-07-22 20:36:03 +020051#include <termios.h>
52#include <unistd.h>
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -020053#include <inttypes.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020054
Ingo Molnar07800602009-04-20 15:00:56 +020055#include <errno.h>
Ingo Molnar07800602009-04-20 15:00:56 +020056#include <time.h>
57#include <sched.h>
Ingo Molnar07800602009-04-20 15:00:56 +020058
59#include <sys/syscall.h>
60#include <sys/ioctl.h>
61#include <sys/poll.h>
62#include <sys/prctl.h>
63#include <sys/wait.h>
64#include <sys/uio.h>
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -030065#include <sys/utsname.h>
Ingo Molnar07800602009-04-20 15:00:56 +020066#include <sys/mman.h>
67
68#include <linux/unistd.h>
69#include <linux/types.h>
70
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -030071static volatile int done;
72
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020073static void perf_top__update_print_entries(struct perf_top *top)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020074{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020075 if (top->print_entries > 9)
76 top->print_entries -= 9;
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020077}
78
Irina Tirdea1d037ca2012-09-11 01:15:03 +030079static void perf_top__sig_winch(int sig __maybe_unused,
80 siginfo_t *info __maybe_unused, void *arg)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020081{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020082 struct perf_top *top = arg;
83
84 get_term_dimensions(&top->winsize);
Stephane Eranian509605d2012-01-30 11:50:37 +010085 if (!top->print_entries
86 || (top->print_entries+4) > top->winsize.ws_row) {
87 top->print_entries = top->winsize.ws_row;
88 } else {
89 top->print_entries += 4;
90 top->winsize.ws_row = top->print_entries;
91 }
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020092 perf_top__update_print_entries(top);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -020093}
94
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -020095static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he)
Mike Galbraith923c42c2009-07-22 20:36:03 +020096{
97 struct symbol *sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -020098 struct annotation *notes;
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -030099 struct map *map;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200100 int err = -1;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200101
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300102 if (!he || !he->ms.sym)
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300103 return -1;
104
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300105 sym = he->ms.sym;
106 map = he->ms.map;
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300107
108 /*
109 * We can't annotate with just /proc/kallsyms
110 */
Jiri Olsa44f24cb2012-07-22 14:14:32 +0200111 if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS) {
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200112 pr_err("Can't annotate %s: No vmlinux file was found in the "
113 "path\n", sym->name);
114 sleep(1);
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300115 return -1;
Arnaldo Carvalho de Melob2698762009-11-17 18:38:02 -0200116 }
117
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200118 notes = symbol__annotation(sym);
119 if (notes->src != NULL) {
120 pthread_mutex_lock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200121 goto out_assign;
122 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200123
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200124 pthread_mutex_lock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200125
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -0200126 if (symbol__alloc_hist(sym) < 0) {
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300127 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200128 pr_err("Not enough memory for annotating '%s' symbol!\n",
129 sym->name);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200130 sleep(1);
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300131 return err;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200132 }
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200133
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300134 err = symbol__annotate(sym, map, 0);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200135 if (err == 0) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200136out_assign:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200137 top->sym_filter_entry = he;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200138 }
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300139
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200140 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200141 return err;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200142}
143
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300144static void __zero_source_counters(struct hist_entry *he)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200145{
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300146 struct symbol *sym = he->ms.sym;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200147 symbol__annotate_zero_histograms(sym);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200148}
149
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300150static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip)
151{
152 struct utsname uts;
153 int err = uname(&uts);
154
155 ui__warning("Out of bounds address found:\n\n"
156 "Addr: %" PRIx64 "\n"
157 "DSO: %s %c\n"
158 "Map: %" PRIx64 "-%" PRIx64 "\n"
159 "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n"
160 "Arch: %s\n"
161 "Kernel: %s\n"
162 "Tools: %s\n\n"
163 "Not all samples will be on the annotation output.\n\n"
164 "Please report to linux-kernel@vger.kernel.org\n",
165 ip, map->dso->long_name, dso__symtab_origin(map->dso),
166 map->start, map->end, sym->start, sym->end,
167 sym->binding == STB_GLOBAL ? 'g' :
168 sym->binding == STB_LOCAL ? 'l' : 'w', sym->name,
169 err ? "[unknown]" : uts.machine,
170 err ? "[unknown]" : uts.release, perf_version_string);
171 if (use_browser <= 0)
172 sleep(5);
173
174 map->erange_warned = true;
175}
176
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200177static void perf_top__record_precise_ip(struct perf_top *top,
178 struct hist_entry *he,
179 int counter, u64 ip)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200180{
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200181 struct annotation *notes;
182 struct symbol *sym;
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300183 int err;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200184
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300185 if (he == NULL || he->ms.sym == NULL ||
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200186 ((top->sym_filter_entry == NULL ||
187 top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200188 return;
189
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300190 sym = he->ms.sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200191 notes = symbol__annotation(sym);
192
193 if (pthread_mutex_trylock(&notes->lock))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200194 return;
195
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -0200196 if (notes->src == NULL && symbol__alloc_hist(sym) < 0) {
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300197 pthread_mutex_unlock(&notes->lock);
198 pr_err("Not enough memory for annotating '%s' symbol!\n",
199 sym->name);
200 sleep(1);
201 return;
202 }
203
204 ip = he->ms.map->map_ip(he->ms.map, ip);
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300205 err = symbol__inc_addr_samples(sym, he->ms.map, counter, ip);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200206
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200207 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo31d68e72012-03-27 12:55:57 -0300208
209 if (err == -ERANGE && !he->ms.map->erange_warned)
210 ui__warn_map_erange(he->ms.map, sym, ip);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200211}
212
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200213static void perf_top__show_details(struct perf_top *top)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200214{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200215 struct hist_entry *he = top->sym_filter_entry;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200216 struct annotation *notes;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200217 struct symbol *symbol;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200218 int more;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200219
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300220 if (!he)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200221 return;
222
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300223 symbol = he->ms.sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200224 notes = symbol__annotation(symbol);
225
226 pthread_mutex_lock(&notes->lock);
227
228 if (notes->src == NULL)
229 goto out_unlock;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200230
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300231 printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200232 printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200233
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200234 more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx,
235 0, top->sym_pcnt_filter, top->print_entries, 4);
236 if (top->zero)
237 symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200238 else
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200239 symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200240 if (more != 0)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200241 printf("%d lines not displayed, maybe increase display entries [e]\n", more);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200242out_unlock:
243 pthread_mutex_unlock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200244}
Ingo Molnar07800602009-04-20 15:00:56 +0200245
Ingo Molnar07800602009-04-20 15:00:56 +0200246static const char CONSOLE_CLEAR[] = "";
247
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200248static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
249 struct addr_location *al,
250 struct perf_sample *sample)
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300251{
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300252 struct hist_entry *he;
253
254 he = __hists__add_entry(&evsel->hists, al, NULL, sample->period);
255 if (he == NULL)
256 return NULL;
257
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300258 hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
259 return he;
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300260}
Ingo Molnar07800602009-04-20 15:00:56 +0200261
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200262static void perf_top__print_sym_table(struct perf_top *top)
Ingo Molnar07800602009-04-20 15:00:56 +0200263{
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200264 char bf[160];
265 int printed = 0;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200266 const int win_width = top->winsize.ws_col - 1;
Mike Galbraithd94b9432009-05-25 09:57:56 +0200267
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200268 puts(CONSOLE_CLEAR);
Ingo Molnar07800602009-04-20 15:00:56 +0200269
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200270 perf_top__header_snprintf(top, bf, sizeof(bf));
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200271 printf("%s\n", bf);
Ingo Molnar07800602009-04-20 15:00:56 +0200272
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200273 perf_top__reset_sample_counters(top);
Ingo Molnar07800602009-04-20 15:00:56 +0200274
Arnaldo Carvalho de Melo1a105f72009-11-17 15:40:55 -0200275 printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
Ingo Molnar07800602009-04-20 15:00:56 +0200276
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200277 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];
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200281 color_fprintf(stdout, PERF_COLOR_RED,
282 "WARNING: LOST %d chunks, Check IO/CPU overload",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200283 top->sym_evsel->hists.stats.nr_lost_warned);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300284 ++printed;
Arnaldo Carvalho de Melo93fc64f2011-01-29 12:08:00 -0200285 }
286
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200287 if (top->sym_filter_entry) {
288 perf_top__show_details(top);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200289 return;
290 }
291
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200292 hists__collapse_resort_threaded(&top->sym_evsel->hists);
293 hists__output_resort_threaded(&top->sym_evsel->hists);
294 hists__decay_entries_threaded(&top->sym_evsel->hists,
295 top->hide_user_symbols,
296 top->hide_kernel_symbols);
297 hists__output_recalc_col_len(&top->sym_evsel->hists,
298 top->winsize.ws_row - 3);
Arnaldo Carvalho de Melo7cc017e2009-11-24 12:05:14 -0200299 putchar('\n');
Jiri Olsa41724e42012-10-04 21:49:38 +0900300 hists__fprintf(&top->sym_evsel->hists, false,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200301 top->winsize.ws_row - 4 - printed, win_width, stdout);
Ingo Molnar07800602009-04-20 15:00:56 +0200302}
303
Mike Galbraith923c42c2009-07-22 20:36:03 +0200304static void prompt_integer(int *target, const char *msg)
305{
306 char *buf = malloc(0), *p;
307 size_t dummy = 0;
308 int tmp;
309
310 fprintf(stdout, "\n%s: ", msg);
311 if (getline(&buf, &dummy, stdin) < 0)
312 return;
313
314 p = strchr(buf, '\n');
315 if (p)
316 *p = 0;
317
318 p = buf;
319 while(*p) {
320 if (!isdigit(*p))
321 goto out_free;
322 p++;
323 }
324 tmp = strtoul(buf, NULL, 10);
325 *target = tmp;
326out_free:
327 free(buf);
328}
329
330static void prompt_percent(int *target, const char *msg)
331{
332 int tmp = 0;
333
334 prompt_integer(&tmp, msg);
335 if (tmp >= 0 && tmp <= 100)
336 *target = tmp;
337}
338
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200339static void perf_top__prompt_symbol(struct perf_top *top, const char *msg)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200340{
341 char *buf = malloc(0), *p;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200342 struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL;
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300343 struct rb_node *next;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200344 size_t dummy = 0;
345
346 /* zero counters of active symbol */
347 if (syme) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200348 __zero_source_counters(syme);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200349 top->sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200350 }
351
352 fprintf(stdout, "\n%s: ", msg);
353 if (getline(&buf, &dummy, stdin) < 0)
354 goto out_free;
355
356 p = strchr(buf, '\n');
357 if (p)
358 *p = 0;
359
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200360 next = rb_first(&top->sym_evsel->hists.entries);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300361 while (next) {
362 n = rb_entry(next, struct hist_entry, rb_node);
363 if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) {
364 found = n;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200365 break;
366 }
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300367 next = rb_next(&n->rb_node);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200368 }
369
370 if (!found) {
Kirill Smelkov66aeb6d2010-01-13 13:22:19 -0200371 fprintf(stderr, "Sorry, %s is not active.\n", buf);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200372 sleep(1);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200373 } else
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200374 perf_top__parse_source(top, found);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200375
376out_free:
377 free(buf);
378}
379
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200380static void perf_top__print_mapped_keys(struct perf_top *top)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200381{
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200382 char *name = NULL;
383
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200384 if (top->sym_filter_entry) {
385 struct symbol *sym = top->sym_filter_entry->ms.sym;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200386 name = sym->name;
387 }
388
389 fprintf(stdout, "\nMapped keys:\n");
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200390 fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs);
391 fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200392
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200393 if (top->evlist->nr_entries > 1)
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300394 fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel));
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200395
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200396 fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200397
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200398 fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter);
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200399 fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL");
400 fprintf(stdout, "\t[S] stop annotation.\n");
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200401
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200402 fprintf(stdout,
Kirill Smelkov1a72cfa2010-02-12 19:20:59 +0300403 "\t[K] hide kernel_symbols symbols. \t(%s)\n",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200404 top->hide_kernel_symbols ? "yes" : "no");
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200405 fprintf(stdout,
406 "\t[U] hide user symbols. \t(%s)\n",
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200407 top->hide_user_symbols ? "yes" : "no");
408 fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200409 fprintf(stdout, "\t[qQ] quit.\n");
410}
411
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200412static int perf_top__key_mapped(struct perf_top *top, int c)
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200413{
414 switch (c) {
415 case 'd':
416 case 'e':
417 case 'f':
418 case 'z':
419 case 'q':
420 case 'Q':
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200421 case 'K':
422 case 'U':
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200423 case 'F':
424 case 's':
425 case 'S':
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200426 return 1;
427 case 'E':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200428 return top->evlist->nr_entries > 1 ? 1 : 0;
Ingo Molnar83a09442009-08-15 12:26:57 +0200429 default:
430 break;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200431 }
432
433 return 0;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200434}
435
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300436static bool perf_top__handle_keypress(struct perf_top *top, int c)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200437{
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300438 bool ret = true;
439
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200440 if (!perf_top__key_mapped(top, c)) {
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200441 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
442 struct termios tc, save;
443
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200444 perf_top__print_mapped_keys(top);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200445 fprintf(stdout, "\nEnter selection, or unmapped key to continue: ");
446 fflush(stdout);
447
448 tcgetattr(0, &save);
449 tc = save;
450 tc.c_lflag &= ~(ICANON | ECHO);
451 tc.c_cc[VMIN] = 0;
452 tc.c_cc[VTIME] = 0;
453 tcsetattr(0, TCSANOW, &tc);
454
455 poll(&stdin_poll, 1, -1);
456 c = getc(stdin);
457
458 tcsetattr(0, TCSAFLUSH, &save);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200459 if (!perf_top__key_mapped(top, c))
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300460 return ret;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200461 }
462
Mike Galbraith923c42c2009-07-22 20:36:03 +0200463 switch (c) {
464 case 'd':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200465 prompt_integer(&top->delay_secs, "Enter display delay");
466 if (top->delay_secs < 1)
467 top->delay_secs = 1;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200468 break;
469 case 'e':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200470 prompt_integer(&top->print_entries, "Enter display entries (lines)");
471 if (top->print_entries == 0) {
472 struct sigaction act = {
473 .sa_sigaction = perf_top__sig_winch,
474 .sa_flags = SA_SIGINFO,
475 };
476 perf_top__sig_winch(SIGWINCH, NULL, top);
477 sigaction(SIGWINCH, &act, NULL);
Stephane Eranian509605d2012-01-30 11:50:37 +0100478 } else {
479 perf_top__sig_winch(SIGWINCH, NULL, top);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200480 signal(SIGWINCH, SIG_DFL);
Stephane Eranian509605d2012-01-30 11:50:37 +0100481 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200482 break;
483 case 'E':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200484 if (top->evlist->nr_entries > 1) {
Akihiro Nagaice2d17c2011-03-23 16:29:39 +0900485 /* Select 0 as the default event: */
486 int counter = 0;
487
Mike Galbraith923c42c2009-07-22 20:36:03 +0200488 fprintf(stderr, "\nAvailable events:");
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200489
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200490 list_for_each_entry(top->sym_evsel, &top->evlist->entries, node)
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300491 fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200492
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300493 prompt_integer(&counter, "Enter details event counter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200494
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200495 if (counter >= top->evlist->nr_entries) {
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300496 top->sym_evsel = perf_evlist__first(top->evlist);
Arnaldo Carvalho de Melo7289f832012-06-12 12:34:58 -0300497 fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200498 sleep(1);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200499 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200500 }
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200501 list_for_each_entry(top->sym_evsel, &top->evlist->entries, node)
502 if (top->sym_evsel->idx == counter)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200503 break;
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300504 } else
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -0300505 top->sym_evsel = perf_evlist__first(top->evlist);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200506 break;
507 case 'f':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200508 prompt_integer(&top->count_filter, "Enter display event count filter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200509 break;
510 case 'F':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200511 prompt_percent(&top->sym_pcnt_filter,
512 "Enter details display event filter (percent)");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200513 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200514 case 'K':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200515 top->hide_kernel_symbols = !top->hide_kernel_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200516 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200517 case 'q':
518 case 'Q':
519 printf("exiting.\n");
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200520 if (top->dump_symtab)
521 perf_session__fprintf_dsos(top->session, stderr);
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300522 ret = false;
523 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200524 case 's':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200525 perf_top__prompt_symbol(top, "Enter details symbol");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200526 break;
527 case 'S':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200528 if (!top->sym_filter_entry)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200529 break;
530 else {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200531 struct hist_entry *syme = top->sym_filter_entry;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200532
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200533 top->sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200534 __zero_source_counters(syme);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200535 }
536 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200537 case 'U':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200538 top->hide_user_symbols = !top->hide_user_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200539 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200540 case 'z':
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200541 top->zero = !top->zero;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200542 break;
Ingo Molnar83a09442009-08-15 12:26:57 +0200543 default:
544 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200545 }
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300546
547 return ret;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200548}
549
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300550static 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
558 hists__collapse_resort_threaded(&t->sym_evsel->hists);
559 hists__output_resort_threaded(&t->sym_evsel->hists);
Arnaldo Carvalho de Melob079d4e2011-10-17 09:05:04 -0200560 hists__decay_entries_threaded(&t->sym_evsel->hists,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200561 t->hide_user_symbols,
562 t->hide_kernel_symbols);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300563}
564
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200565static void *display_thread_tui(void *arg)
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200566{
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200567 struct perf_evsel *pos;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200568 struct perf_top *top = arg;
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300569 const char *help = "For a higher level overview, try: perf top --sort comm,dso";
Namhyung Kim9783adf2012-11-02 14:50:05 +0900570 struct hist_browser_timer hbt = {
571 .timer = perf_top__sort_new_samples,
572 .arg = top,
573 .refresh = top->delay_secs,
574 };
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300575
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200576 perf_top__sort_new_samples(top);
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200577
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 */
583 list_for_each_entry(pos, &top->evlist->entries, node)
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300584 pos->hists.uid_filter_str = top->record_opts.target.uid_str;
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -0200585
Namhyung Kim68d80752012-11-02 14:50:06 +0900586 perf_evlist__tui_browse_hists(top->evlist, help, &hbt,
587 &top->session->header.env);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300588
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300589 done = 1;
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200590 return NULL;
591}
592
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200593static void *display_thread(void *arg)
Ingo Molnar07800602009-04-20 15:00:56 +0200594{
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200595 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
Mike Galbraith923c42c2009-07-22 20:36:03 +0200596 struct termios tc, save;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200597 struct perf_top *top = arg;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200598 int delay_msecs, c;
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200599
Mike Galbraith923c42c2009-07-22 20:36:03 +0200600 tcgetattr(0, &save);
601 tc = save;
602 tc.c_lflag &= ~(ICANON | ECHO);
603 tc.c_cc[VMIN] = 0;
604 tc.c_cc[VTIME] = 0;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200605
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300606 pthread__unblock_sigwinch();
Mike Galbraith923c42c2009-07-22 20:36:03 +0200607repeat:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200608 delay_msecs = top->delay_secs * 1000;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200609 tcsetattr(0, TCSANOW, &tc);
610 /* trash return*/
611 getc(stdin);
Ingo Molnar07800602009-04-20 15:00:56 +0200612
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300613 while (!done) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200614 perf_top__print_sym_table(top);
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300615 /*
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:
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300627 c = getc(stdin);
628 tcsetattr(0, TCSAFLUSH, &save);
629
630 if (perf_top__handle_keypress(top, c))
631 goto repeat;
632 done = 1;
Arnaldo Carvalho de Melo3af6e332011-10-13 08:52:46 -0300633 }
634 }
Ingo Molnar07800602009-04-20 15:00:56 +0200635
636 return NULL;
637}
638
Anton Blanchard2ab52082009-07-01 09:00:46 +1000639/* Tag samples to be skipped. */
Ingo Molnarf37a2912009-07-01 12:37:06 +0200640static const char *skip_symbols[] = {
Arnaldo Carvalho de Melo4bea8b52012-04-02 11:16:24 -0300641 "intel_idle",
Anton Blanchard2ab52082009-07-01 09:00:46 +1000642 "default_idle",
Arnaldo Carvalho de Melob0e85722011-01-16 17:39:15 -0200643 "native_safe_halt",
Anton Blanchard2ab52082009-07-01 09:00:46 +1000644 "cpu_idle",
645 "enter_idle",
646 "exit_idle",
647 "mwait_idle",
Arnaldo Carvalho de Melo59b90052009-07-26 19:06:19 -0300648 "mwait_idle_with_hints",
Arnaldo Carvalho de Melo83572752009-09-25 15:02:39 -0700649 "poll_idle",
Anton Blanchard3a3393e2009-07-01 09:00:47 +1000650 "ppc64_runlatch_off",
651 "pseries_dedicated_idle_sleep",
Anton Blanchard2ab52082009-07-01 09:00:46 +1000652 NULL
653};
654
Irina Tirdea1d037ca2012-09-11 01:15:03 +0300655static int symbol_filter(struct map *map __maybe_unused, struct symbol *sym)
Ingo Molnar07800602009-04-20 15:00:56 +0200656{
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300657 const char *name = sym->name;
Anton Blanchard2ab52082009-07-01 09:00:46 +1000658 int i;
Ingo Molnar07800602009-04-20 15:00:56 +0200659
Anton Blanchard3a3393e2009-07-01 09:00:47 +1000660 /*
661 * ppc64 uses function descriptors and appends a '.' to the
662 * start of every instruction address. Remove it.
663 */
664 if (name[0] == '.')
665 name++;
666
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300667 if (!strcmp(name, "_text") ||
668 !strcmp(name, "_etext") ||
669 !strcmp(name, "_sinittext") ||
670 !strncmp("init_module", name, 11) ||
671 !strncmp("cleanup_module", name, 14) ||
672 strstr(name, "_text_start") ||
673 strstr(name, "_text_end"))
Ingo Molnar07800602009-04-20 15:00:56 +0200674 return 1;
675
Anton Blanchard2ab52082009-07-01 09:00:46 +1000676 for (i = 0; skip_symbols[i]; i++) {
677 if (!strcmp(skip_symbols[i], name)) {
Arnaldo Carvalho de Melo171b3be2011-03-11 13:36:01 -0300678 sym->ignore = true;
Anton Blanchard2ab52082009-07-01 09:00:46 +1000679 break;
680 }
681 }
Ingo Molnar07800602009-04-20 15:00:56 +0200682
Ingo Molnar07800602009-04-20 15:00:56 +0200683 return 0;
684}
685
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200686static void perf_event__process_sample(struct perf_tool *tool,
687 const union perf_event *event,
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200688 struct perf_evsel *evsel,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200689 struct perf_sample *sample,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200690 struct machine *machine)
Ingo Molnar07800602009-04-20 15:00:56 +0200691{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200692 struct perf_top *top = container_of(tool, struct perf_top, tool);
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300693 struct symbol *parent = NULL;
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200694 u64 ip = event->ip.ip;
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200695 struct addr_location al;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300696 int err;
Ingo Molnar07800602009-04-20 15:00:56 +0200697
Arnaldo Carvalho de Melo23346f22010-04-27 21:17:50 -0300698 if (!machine && perf_guest) {
David Ahern6b118e92012-07-30 22:31:35 -0600699 static struct intlist *seen;
700
701 if (!seen)
Arnaldo Carvalho de Meloffe0fb72013-01-24 16:17:27 -0300702 seen = intlist__new(NULL);
David Ahern6b118e92012-07-30 22:31:35 -0600703
704 if (!intlist__has_entry(seen, event->ip.pid)) {
705 pr_err("Can't find guest [%d]'s kernel information\n",
706 event->ip.pid);
707 intlist__add(seen, event->ip.pid);
708 }
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800709 return;
710 }
711
Joerg Roedel0c095712012-02-10 18:05:04 +0100712 if (!machine) {
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300713 pr_err("%u unprocessable samples recorded.\r",
Arnaldo Carvalho de Melo28a6b6a2012-12-18 16:24:46 -0300714 top->session->stats.nr_unprocessable_samples++);
Joerg Roedel0c095712012-02-10 18:05:04 +0100715 return;
716 }
717
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200718 if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200719 top->exact_samples++;
Peter Zijlstra1676b8a2010-03-04 14:19:36 +0100720
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200721 if (perf_event__preprocess_sample(event, machine, &al, sample,
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200722 symbol_filter) < 0 ||
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200723 al.filtered)
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200724 return;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200725
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200726 if (!top->kptr_restrict_warned &&
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300727 symbol_conf.kptr_restrict &&
728 al.cpumode == PERF_RECORD_MISC_KERNEL) {
729 ui__warning(
730"Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n"
731"Check /proc/sys/kernel/kptr_restrict.\n\n"
732"Kernel%s samples will not be resolved.\n",
733 !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ?
734 " modules" : "");
735 if (use_browser <= 0)
736 sleep(5);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200737 top->kptr_restrict_warned = true;
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300738 }
739
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200740 if (al.sym == NULL) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300741 const char *msg = "Kernel samples will not be resolved.\n";
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200742 /*
743 * As we do lazy loading of symtabs we only will know if the
744 * specified vmlinux file is invalid when we actually have a
745 * hit in kernel space and then try to load it. So if we get
746 * here and there are _no_ symbols in the DSO backing the
747 * kernel map, bail out.
748 *
749 * We may never get here, for instance, if we use -K/
750 * --hide-kernel-symbols, even if the user specifies an
751 * invalid --vmlinux ;-)
752 */
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200753 if (!top->kptr_restrict_warned && !top->vmlinux_warned &&
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300754 al.map == machine->vmlinux_maps[MAP__FUNCTION] &&
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200755 RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300756 if (symbol_conf.vmlinux_name) {
757 ui__warning("The %s file can't be used.\n%s",
758 symbol_conf.vmlinux_name, msg);
759 } else {
760 ui__warning("A vmlinux file was not found.\n%s",
761 msg);
762 }
763
764 if (use_browser <= 0)
765 sleep(5);
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200766 top->vmlinux_warned = true;
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200767 }
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200768 }
769
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300770 if (al.sym == NULL || !al.sym->ignore) {
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300771 struct hist_entry *he;
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200772
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300773 if ((sort__has_parent || symbol_conf.use_callchain) &&
774 sample->callchain) {
Jiri Olsa71ad0f52012-08-07 15:20:46 +0200775 err = machine__resolve_callchain(machine, evsel,
776 al.thread, sample,
777 &parent);
778
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300779 if (err)
780 return;
781 }
782
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200783 he = perf_evsel__add_hist_entry(evsel, &al, sample);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300784 if (he == NULL) {
785 pr_err("Problem incrementing symbol period, skipping event\n");
786 return;
Arnaldo Carvalho de Melo58078062011-03-01 10:43:03 -0300787 }
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300788
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300789 if (symbol_conf.use_callchain) {
Namhyung Kim47260642012-05-31 14:43:26 +0900790 err = callchain_append(he->callchain, &callchain_cursor,
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300791 sample->period);
792 if (err)
793 return;
794 }
795
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200796 if (top->sort_has_symbols)
797 perf_top__record_precise_ip(top, he, evsel->idx, ip);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200798 }
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -0300799
800 return;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200801}
802
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200803static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
Ingo Molnar07800602009-04-20 15:00:56 +0200804{
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -0200805 struct perf_sample sample;
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200806 struct perf_evsel *evsel;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200807 struct perf_session *session = top->session;
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200808 union perf_event *event;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200809 struct machine *machine;
810 u8 origin;
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200811 int ret;
Ingo Molnar07800602009-04-20 15:00:56 +0200812
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200813 while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) {
Arnaldo Carvalho de Melo0807d2d2012-09-26 12:48:18 -0300814 ret = perf_evlist__parse_sample(top->evlist, event, &sample);
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200815 if (ret) {
816 pr_err("Can't parse sample, err = %d\n", ret);
817 continue;
818 }
Arnaldo Carvalho de Melo04391de2011-01-15 10:40:59 -0200819
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200820 evsel = perf_evlist__id2evsel(session->evlist, sample.id);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200821 assert(evsel != NULL);
822
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200823 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
824
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200825 if (event->header.type == PERF_RECORD_SAMPLE)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200826 ++top->samples;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200827
828 switch (origin) {
829 case PERF_RECORD_MISC_USER:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200830 ++top->us_samples;
831 if (top->hide_user_symbols)
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200832 continue;
Arnaldo Carvalho de Melo34ba5122012-12-19 09:04:24 -0300833 machine = &session->machines.host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200834 break;
835 case PERF_RECORD_MISC_KERNEL:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200836 ++top->kernel_samples;
837 if (top->hide_kernel_symbols)
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200838 continue;
Arnaldo Carvalho de Melo34ba5122012-12-19 09:04:24 -0300839 machine = &session->machines.host;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200840 break;
841 case PERF_RECORD_MISC_GUEST_KERNEL:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200842 ++top->guest_kernel_samples;
843 machine = perf_session__find_machine(session, event->ip.pid);
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200844 break;
845 case PERF_RECORD_MISC_GUEST_USER:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200846 ++top->guest_us_samples;
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200847 /*
848 * TODO: we don't process guest user from host side
849 * except simple counting.
850 */
851 /* Fall thru */
852 default:
853 continue;
854 }
855
856
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200857 if (event->header.type == PERF_RECORD_SAMPLE) {
858 perf_event__process_sample(&top->tool, event, evsel,
859 &sample, machine);
860 } else if (event->header.type < PERF_RECORD_MAX) {
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200861 hists__inc_nr_events(&evsel->hists, event->header.type);
Arnaldo Carvalho de Melob0a7d1a2012-10-06 16:26:02 -0300862 machine__process_event(machine, event);
Arnaldo Carvalho de Melo7b275092011-10-29 12:15:04 -0200863 } else
Arnaldo Carvalho de Melo28a6b6a2012-12-18 16:24:46 -0300864 ++session->stats.nr_unknown_events;
Ingo Molnar07800602009-04-20 15:00:56 +0200865 }
Ingo Molnar07800602009-04-20 15:00:56 +0200866}
867
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200868static void perf_top__mmap_read(struct perf_top *top)
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200869{
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200870 int i;
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200871
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200872 for (i = 0; i < top->evlist->nr_mmaps; i++)
873 perf_top__mmap_read_idx(top, i);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200874}
875
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300876static int perf_top__start_counters(struct perf_top *top)
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200877{
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300878 char msg[512];
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200879 struct perf_evsel *counter;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200880 struct perf_evlist *evlist = top->evlist;
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300881 struct perf_record_opts *opts = &top->record_opts;
Arnaldo Carvalho de Melo727ab042011-10-25 10:42:19 -0200882
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300883 perf_evlist__config(evlist, opts);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200884
885 list_for_each_entry(counter, &evlist->entries, node) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200886try_again:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200887 if (perf_evsel__open(counter, top->evlist->cpus,
Jiri Olsa6a4bb042012-08-08 12:22:36 +0200888 top->evlist->threads) < 0) {
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300889 if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200890 if (verbose)
Arnaldo Carvalho de Meloc0a54342012-12-13 14:16:30 -0300891 ui__warning("%s\n", msg);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200892 goto try_again;
893 }
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300894
Arnaldo Carvalho de Melo56e52e82012-12-13 15:10:58 -0300895 perf_evsel__open_strerror(counter, &opts->target,
896 errno, msg, sizeof(msg));
897 ui__error("%s\n", msg);
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300898 goto out_err;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200899 }
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200900 }
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200901
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300902 if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900903 ui__error("Failed to mmap with %d (%s)\n",
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300904 errno, strerror(errno));
905 goto out_err;
906 }
907
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300908 return 0;
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300909
910out_err:
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300911 return -1;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200912}
913
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200914static int perf_top__setup_sample_type(struct perf_top *top)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300915{
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200916 if (!top->sort_has_symbols) {
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300917 if (symbol_conf.use_callchain) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900918 ui__error("Selected -g but \"sym\" not present in --sort/-s.");
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300919 return -EINVAL;
920 }
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300921 } else if (callchain_param.mode != CHAIN_NONE) {
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300922 if (callchain_register_param(&callchain_param) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900923 ui__error("Can't register callchain params.\n");
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300924 return -EINVAL;
925 }
926 }
927
928 return 0;
929}
930
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200931static int __cmd_top(struct perf_top *top)
Ingo Molnar716c69f2009-06-07 17:31:52 +0200932{
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300933 struct perf_record_opts *opts = &top->record_opts;
Ingo Molnar716c69f2009-06-07 17:31:52 +0200934 pthread_t thread;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300935 int ret;
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200936 /*
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -0200937 * FIXME: perf_session__new should allow passing a O_MMAP, so that all this
938 * mmap reading, etc is encapsulated in it. Use O_WRONLY for now.
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200939 */
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200940 top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL);
941 if (top->session == NULL)
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -0200942 return -ENOMEM;
Ingo Molnar07800602009-04-20 15:00:56 +0200943
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200944 ret = perf_top__setup_sample_type(top);
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -0300945 if (ret)
946 goto out_delete;
947
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300948 if (perf_target__has_task(&opts->target))
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200949 perf_event__synthesize_thread_map(&top->tool, top->evlist->threads,
Arnaldo Carvalho de Melo743eb862011-11-28 07:56:39 -0200950 perf_event__process,
Arnaldo Carvalho de Melo876650e2012-12-18 19:15:48 -0300951 &top->session->machines.host);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200952 else
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200953 perf_event__synthesize_threads(&top->tool, perf_event__process,
Arnaldo Carvalho de Melo876650e2012-12-18 19:15:48 -0300954 &top->session->machines.host);
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300955
956 ret = perf_top__start_counters(top);
957 if (ret)
958 goto out_delete;
959
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200960 top->session->evlist = top->evlist;
Arnaldo Carvalho de Melo7b56cce2012-08-01 19:31:00 -0300961 perf_session__set_id_hdr_size(top->session);
Ingo Molnar07800602009-04-20 15:00:56 +0200962
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -0300963 /*
964 * When perf is starting the traced process, all the events (apart from
965 * group members) have enable_on_exec=1 set, so don't spoil it by
966 * prematurely enabling them.
967 *
968 * XXX 'top' still doesn't start workloads like record, trace, but should,
969 * so leave the check here.
970 */
971 if (!perf_target__none(&opts->target))
972 perf_evlist__enable(top->evlist);
973
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200974 /* Wait for a minimal set of events before starting the snapshot */
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200975 poll(top->evlist->pollfd, top->evlist->nr_fds, 100);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200976
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200977 perf_top__mmap_read(top);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200978
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300979 ret = -1;
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200980 if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200981 display_thread), top)) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900982 ui__error("Could not create display thread.\n");
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300983 goto out_delete;
Ingo Molnar07800602009-04-20 15:00:56 +0200984 }
985
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200986 if (top->realtime_prio) {
Ingo Molnar07800602009-04-20 15:00:56 +0200987 struct sched_param param;
988
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200989 param.sched_priority = top->realtime_prio;
Ingo Molnar07800602009-04-20 15:00:56 +0200990 if (sched_setscheduler(0, SCHED_FIFO, &param)) {
Namhyung Kim3780f482012-05-29 13:22:57 +0900991 ui__error("Could not set realtime priority.\n");
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300992 goto out_delete;
Ingo Molnar07800602009-04-20 15:00:56 +0200993 }
994 }
995
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -0300996 while (!done) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200997 u64 hits = top->samples;
Ingo Molnar07800602009-04-20 15:00:56 +0200998
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -0200999 perf_top__mmap_read(top);
Ingo Molnar07800602009-04-20 15:00:56 +02001000
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001001 if (hits == top->samples)
1002 ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100);
Ingo Molnar07800602009-04-20 15:00:56 +02001003 }
1004
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001005 ret = 0;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001006out_delete:
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001007 perf_session__delete(top->session);
1008 top->session = NULL;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001009
Arnaldo Carvalho de Melo11859e82013-01-30 13:25:53 -03001010 return ret;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001011}
1012
1013static int
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001014parse_callchain_opt(const struct option *opt, const char *arg, int unset)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001015{
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001016 /*
1017 * --no-call-graph
1018 */
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001019 if (unset)
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001020 return 0;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001021
1022 symbol_conf.use_callchain = true;
1023
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001024 return record_parse_callchain_opt(opt, arg, unset);
Ingo Molnar07800602009-04-20 15:00:56 +02001025}
Ingo Molnarb456bae2009-05-26 09:17:18 +02001026
Irina Tirdea1d037ca2012-09-11 01:15:03 +03001027int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001028{
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001029 int status;
1030 char errbuf[BUFSIZ];
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001031 struct perf_top top = {
1032 .count_filter = 5,
1033 .delay_secs = 2,
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001034 .record_opts = {
1035 .mmap_pages = UINT_MAX,
1036 .user_freq = UINT_MAX,
1037 .user_interval = ULLONG_MAX,
1038 .freq = 4000, /* 4 KHz */
1039 .target = {
1040 .uses_mmap = true,
1041 },
Namhyung Kimd1cb9fc2012-05-16 18:45:49 +09001042 },
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001043 .sym_pcnt_filter = 5,
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001044 };
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001045 struct perf_record_opts *opts = &top.record_opts;
1046 struct perf_target *target = &opts->target;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001047 const struct option options[] = {
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001048 OPT_CALLBACK('e', "event", &top.evlist, "event",
Thomas Gleixner86847b62009-06-06 12:24:17 +02001049 "event selector. use 'perf list' to list available events",
Jiri Olsaf120f9d2011-07-14 11:25:32 +02001050 parse_events_option),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001051 OPT_U64('c', "count", &opts->user_interval, "event period to sample"),
1052 OPT_STRING('p', "pid", &target->pid, "pid",
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001053 "profile events on existing process id"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001054 OPT_STRING('t', "tid", &target->tid, "tid",
Zhang, Yanmind6d901c2010-03-18 11:36:05 -03001055 "profile events on existing thread id"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001056 OPT_BOOLEAN('a', "all-cpus", &target->system_wide,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001057 "system-wide collection from all CPUs"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001058 OPT_STRING('C', "cpu", &target->cpu_list, "cpu",
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001059 "list of cpus to monitor"),
Arnaldo Carvalho de Melob32d1332009-11-24 12:05:15 -02001060 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1061 "file", "vmlinux pathname"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001062 OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001063 "hide kernel symbols"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001064 OPT_UINTEGER('m', "mmap-pages", &opts->mmap_pages,
1065 "number of mmap data pages"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001066 OPT_INTEGER('r', "realtime", &top.realtime_prio,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001067 "collect data with this RT SCHED_FIFO priority"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001068 OPT_INTEGER('d', "delay", &top.delay_secs,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001069 "number of seconds to delay between refreshes"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001070 OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001071 "dump the symbol table used for profiling"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001072 OPT_INTEGER('f', "count-filter", &top.count_filter,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001073 "only display functions with more events than this"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001074 OPT_BOOLEAN('g', "group", &opts->group,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001075 "put the counters into a counter group"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001076 OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit,
1077 "child tasks do not inherit counters"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001078 OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name",
Kirill Smelkov6cff0e82010-02-03 16:52:08 -02001079 "symbol to annotate"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001080 OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"),
1081 OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001082 OPT_INTEGER('E', "entries", &top.print_entries,
Ingo Molnar6e53cdf2009-06-04 08:53:05 +02001083 "display this many functions"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001084 OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001085 "hide user symbols"),
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001086 OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"),
1087 OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"),
Ian Munsiec0555642010-04-13 18:37:33 +10001088 OPT_INCR('v', "verbose", &verbose,
Ingo Molnar3da297a2009-06-07 17:39:02 +02001089 "be more verbose (show counter open errors, etc)"),
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001090 OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
1091 "sort by key(s): pid, comm, dso, symbol, parent"),
1092 OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
1093 "Show a column with the number of samples"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001094 OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts,
1095 "mode[,dump_size]", record_callchain_help,
1096 &parse_callchain_opt, "fp"),
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001097 OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period,
1098 "Show a column with the sum of periods"),
1099 OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
1100 "only consider symbols in these dsos"),
1101 OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
1102 "only consider symbols in these comms"),
1103 OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]",
1104 "only consider these symbols"),
Arnaldo Carvalho de Melo64c6f0c2011-10-06 12:48:31 -03001105 OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src,
1106 "Interleave source code with assembly code (default)"),
1107 OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw,
1108 "Display raw encoding of assembly instructions (default)"),
1109 OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style",
1110 "Specify disassembler style (e.g. -M intel for intel syntax)"),
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001111 OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"),
Ingo Molnarb456bae2009-05-26 09:17:18 +02001112 OPT_END()
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001113 };
Arnaldo Carvalho de Melobe772842012-10-01 15:20:58 -03001114 const char * const top_usage[] = {
1115 "perf top [<options>]",
1116 NULL
1117 };
Ingo Molnarb456bae2009-05-26 09:17:18 +02001118
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001119 top.evlist = perf_evlist__new(NULL, NULL);
1120 if (top.evlist == NULL)
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -02001121 return -ENOMEM;
1122
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001123 symbol_conf.exclude_other = false;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001124
Ingo Molnarb456bae2009-05-26 09:17:18 +02001125 argc = parse_options(argc, argv, options, top_usage, 0);
1126 if (argc)
1127 usage_with_options(top_usage, options);
1128
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001129 if (sort_order == default_sort_order)
1130 sort_order = "dso,symbol";
1131
Namhyung Kim55309982013-02-06 14:57:16 +09001132 if (setup_sorting() < 0)
1133 usage_with_options(top_usage, options);
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001134
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001135 if (top.use_stdio)
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -02001136 use_browser = 0;
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001137 else if (top.use_tui)
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -02001138 use_browser = 1;
1139
1140 setup_browser(false);
1141
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001142 status = perf_target__validate(target);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001143 if (status) {
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001144 perf_target__strerror(target, status, errbuf, BUFSIZ);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001145 ui__warning("%s", errbuf);
1146 }
Namhyung Kim4bd0f2d2012-04-26 14:15:18 +09001147
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001148 status = perf_target__parse_uid(target);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001149 if (status) {
1150 int saved_errno = errno;
1151
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001152 perf_target__strerror(target, status, errbuf, BUFSIZ);
Namhyung Kim3780f482012-05-29 13:22:57 +09001153 ui__error("%s", errbuf);
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001154
1155 status = -saved_errno;
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001156 goto out_delete_evlist;
Namhyung Kim16ad2ff2012-05-07 14:09:02 +09001157 }
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001158
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001159 if (perf_target__none(target))
1160 target->system_wide = true;
Arnaldo Carvalho de Melo10b47d52012-05-07 16:33:56 -03001161
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001162 if (perf_evlist__create_maps(top.evlist, target) < 0)
Arnaldo Carvalho de Melo7e2ed092011-01-30 11:59:43 -02001163 usage_with_options(top_usage, options);
1164
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001165 if (!top.evlist->nr_entries &&
1166 perf_evlist__add_default(top.evlist) < 0) {
Namhyung Kim3780f482012-05-29 13:22:57 +09001167 ui__error("Not enough memory for event selector list\n");
Arnaldo Carvalho de Melo0de233b2013-01-30 14:01:20 -03001168 goto out_delete_maps;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001169 }
Arnaldo Carvalho de Melo5a8e5a32009-11-17 18:38:01 -02001170
Arnaldo Carvalho de Melod04b35f2011-11-11 22:17:32 -02001171 symbol_conf.nr_events = top.evlist->nr_entries;
1172
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001173 if (top.delay_secs < 1)
1174 top.delay_secs = 1;
Frederic Weisbecker2f335a02009-06-05 19:31:01 +02001175
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001176 if (opts->user_interval != ULLONG_MAX)
1177 opts->default_interval = opts->user_interval;
1178 if (opts->user_freq != UINT_MAX)
1179 opts->freq = opts->user_freq;
1180
Mike Galbraith7e4ff9e2009-10-12 07:56:03 +02001181 /*
1182 * User specified count overrides default frequency.
1183 */
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001184 if (opts->default_interval)
1185 opts->freq = 0;
1186 else if (opts->freq) {
1187 opts->default_interval = opts->freq;
Mike Galbraith7e4ff9e2009-10-12 07:56:03 +02001188 } else {
Namhyung Kim3780f482012-05-29 13:22:57 +09001189 ui__error("frequency and count are zero, aborting\n");
Arnaldo Carvalho de Melo2376c672012-12-11 16:48:41 -03001190 status = -EINVAL;
Arnaldo Carvalho de Melo0de233b2013-01-30 14:01:20 -03001191 goto out_delete_maps;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001192 }
1193
Arnaldo Carvalho de Melo0c21f732012-08-14 16:42:15 -03001194 top.sym_evsel = perf_evlist__first(top.evlist);
Arnaldo Carvalho de Melocc841582011-01-11 15:16:52 -02001195
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001196 symbol_conf.priv_size = sizeof(struct annotation);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001197
1198 symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
1199 if (symbol__init() < 0)
1200 return -1;
1201
Arnaldo Carvalho de Meloab81f3f2011-10-05 19:16:15 -03001202 sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout);
1203 sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout);
1204 sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout);
1205
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001206 /*
1207 * Avoid annotation data structures overhead when symbols aren't on the
1208 * sort list.
1209 */
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001210 top.sort_has_symbols = sort_sym.list.next != NULL;
Arnaldo Carvalho de Melo19d4ac32011-10-05 19:30:22 -03001211
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001212 get_term_dimensions(&top.winsize);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001213 if (top.print_entries == 0) {
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001214 struct sigaction act = {
1215 .sa_sigaction = perf_top__sig_winch,
1216 .sa_flags = SA_SIGINFO,
1217 };
1218 perf_top__update_print_entries(&top);
1219 sigaction(SIGWINCH, &act, NULL);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -02001220 }
1221
Arnaldo Carvalho de Melo1758af12011-11-28 09:37:05 -02001222 status = __cmd_top(&top);
Arnaldo Carvalho de Melo806fb632011-11-29 08:05:52 -02001223
Arnaldo Carvalho de Melo0de233b2013-01-30 14:01:20 -03001224out_delete_maps:
1225 perf_evlist__delete_maps(top.evlist);
Arnaldo Carvalho de Melo0d37aa32012-01-19 14:08:15 -02001226out_delete_evlist:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001227 perf_evlist__delete(top.evlist);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001228
1229 return status;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001230}