blob: a43433f083001e373e1f51ee22ed335dd330b368 [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>
8 *
9 * Improvements and fixes by:
10 *
11 * Arjan van de Ven <arjan@linux.intel.com>
12 * Yanmin Zhang <yanmin.zhang@intel.com>
13 * Wu Fengguang <fengguang.wu@intel.com>
14 * Mike Galbraith <efault@gmx.de>
15 * Paul Mackerras <paulus@samba.org>
16 *
17 * Released under the GPL v2. (and only v2, not any later version)
Ingo Molnar07800602009-04-20 15:00:56 +020018 */
Ingo Molnarbf9e1872009-06-02 23:37:05 +020019#include "builtin.h"
Ingo Molnar07800602009-04-20 15:00:56 +020020
Peter Zijlstra1a482f32009-05-23 18:28:58 +020021#include "perf.h"
Ingo Molnarbf9e1872009-06-02 23:37:05 +020022
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -020023#include "util/annotate.h"
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -020024#include "util/cache.h"
Ingo Molnar8fc03212009-06-04 15:19:47 +020025#include "util/color.h"
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -020026#include "util/evlist.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020027#include "util/evsel.h"
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -020028#include "util/session.h"
29#include "util/symbol.h"
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -030030#include "util/thread.h"
Arnaldo Carvalho de Melofd782602011-01-18 15:15:24 -020031#include "util/thread_map.h"
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -020032#include "util/top.h"
Ingo Molnar148be2c2009-04-27 08:02:14 +020033#include "util/util.h"
Arnaldo Carvalho de Melo43cbcd82009-07-01 12:28:37 -030034#include <linux/rbtree.h>
Ingo Molnarb456bae2009-05-26 09:17:18 +020035#include "util/parse-options.h"
36#include "util/parse-events.h"
Paul Mackerrasa12b51c2010-03-10 20:36:09 +110037#include "util/cpumap.h"
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -020038#include "util/xyarray.h"
Ingo Molnar07800602009-04-20 15:00:56 +020039
Frederic Weisbecker8f28827a2009-08-16 22:05:48 +020040#include "util/debug.h"
41
Ingo Molnar07800602009-04-20 15:00:56 +020042#include <assert.h>
43#include <fcntl.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020044
Ingo Molnar07800602009-04-20 15:00:56 +020045#include <stdio.h>
Mike Galbraith923c42c2009-07-22 20:36:03 +020046#include <termios.h>
47#include <unistd.h>
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -020048#include <inttypes.h>
Ingo Molnar0e9b20b2009-05-26 09:17:18 +020049
Ingo Molnar07800602009-04-20 15:00:56 +020050#include <errno.h>
Ingo Molnar07800602009-04-20 15:00:56 +020051#include <time.h>
52#include <sched.h>
Ingo Molnar07800602009-04-20 15:00:56 +020053
54#include <sys/syscall.h>
55#include <sys/ioctl.h>
56#include <sys/poll.h>
57#include <sys/prctl.h>
58#include <sys/wait.h>
59#include <sys/uio.h>
60#include <sys/mman.h>
61
62#include <linux/unistd.h>
63#include <linux/types.h>
64
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -020065static struct perf_top top = {
66 .count_filter = 5,
67 .delay_secs = 2,
68 .display_weighted = -1,
69 .target_pid = -1,
70 .target_tid = -1,
71 .active_symbols = LIST_HEAD_INIT(top.active_symbols),
72 .active_symbols_lock = PTHREAD_MUTEX_INITIALIZER,
Arnaldo Carvalho de Melo58078062011-03-01 10:43:03 -030073 .active_symbols_cond = PTHREAD_COND_INITIALIZER,
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -020074 .freq = 1000, /* 1 KHz */
75};
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -020076
Ian Munsiec0555642010-04-13 18:37:33 +100077static bool system_wide = false;
Ingo Molnar07800602009-04-20 15:00:56 +020078
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -020079static bool use_tui, use_stdio;
80
Mike Galbraith7e4ff9e2009-10-12 07:56:03 +020081static int default_interval = 0;
Ingo Molnar07800602009-04-20 15:00:56 +020082
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -030083static bool kptr_restrict_warned;
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -030084static bool vmlinux_warned;
Ian Munsiec0555642010-04-13 18:37:33 +100085static bool inherit = false;
Arnaldo Carvalho de Melo19679362010-05-17 15:39:16 -030086static int realtime_prio = 0;
Ian Munsiec0555642010-04-13 18:37:33 +100087static bool group = false;
Ingo Molnar07800602009-04-20 15:00:56 +020088static unsigned int page_size;
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -020089static unsigned int mmap_pages = 128;
Ingo Molnar07800602009-04-20 15:00:56 +020090
Ian Munsiec0555642010-04-13 18:37:33 +100091static bool dump_symtab = false;
Ingo Molnar07800602009-04-20 15:00:56 +020092
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -020093static struct winsize winsize;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -020094
Arnaldo Carvalho de Meloedb7c602010-05-17 16:22:41 -030095static const char *sym_filter = NULL;
Kirill Smelkov6cff0e82010-02-03 16:52:08 -020096struct sym_entry *sym_filter_entry_sched = NULL;
Ingo Molnar42e59d72009-10-06 15:14:21 +020097static int sym_pcnt_filter = 5;
Ingo Molnar07800602009-04-20 15:00:56 +020098
Mike Galbraith923c42c2009-07-22 20:36:03 +020099/*
100 * Source functions
101 */
102
Arnaldo Carvalho de Melo895f0ed2010-03-11 20:12:41 -0300103void get_term_dimensions(struct winsize *ws)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200104{
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200105 char *s = getenv("LINES");
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200106
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200107 if (s != NULL) {
108 ws->ws_row = atoi(s);
109 s = getenv("COLUMNS");
110 if (s != NULL) {
111 ws->ws_col = atoi(s);
112 if (ws->ws_row && ws->ws_col)
113 return;
114 }
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200115 }
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200116#ifdef TIOCGWINSZ
117 if (ioctl(1, TIOCGWINSZ, ws) == 0 &&
118 ws->ws_row && ws->ws_col)
119 return;
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200120#endif
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200121 ws->ws_row = 25;
122 ws->ws_col = 80;
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200123}
124
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200125static void update_print_entries(struct winsize *ws)
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200126{
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200127 top.print_entries = ws->ws_row;
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200128
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200129 if (top.print_entries > 9)
130 top.print_entries -= 9;
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200131}
132
133static void sig_winch_handler(int sig __used)
134{
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200135 get_term_dimensions(&winsize);
136 update_print_entries(&winsize);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200137}
138
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300139static int parse_source(struct sym_entry *syme)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200140{
141 struct symbol *sym;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200142 struct annotation *notes;
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -0300143 struct map *map;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200144 int err = -1;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200145
146 if (!syme)
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300147 return -1;
148
149 sym = sym_entry__symbol(syme);
150 map = syme->map;
151
152 /*
153 * We can't annotate with just /proc/kallsyms
154 */
Arnaldo Carvalho de Melo878b4392011-03-11 13:13:36 -0300155 if (map->dso->symtab_type == SYMTAB__KALLSYMS) {
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200156 pr_err("Can't annotate %s: No vmlinux file was found in the "
157 "path\n", sym->name);
158 sleep(1);
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300159 return -1;
Arnaldo Carvalho de Melob2698762009-11-17 18:38:02 -0200160 }
161
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200162 notes = symbol__annotation(sym);
163 if (notes->src != NULL) {
164 pthread_mutex_lock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200165 goto out_assign;
166 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200167
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200168 pthread_mutex_lock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200169
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200170 if (symbol__alloc_hist(sym, top.evlist->nr_entries) < 0) {
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300171 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200172 pr_err("Not enough memory for annotating '%s' symbol!\n",
173 sym->name);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200174 sleep(1);
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300175 return err;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200176 }
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200177
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200178 err = symbol__annotate(sym, syme->map, 0);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200179 if (err == 0) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200180out_assign:
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300181 top.sym_filter_entry = syme;
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200182 }
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300183
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200184 pthread_mutex_unlock(&notes->lock);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200185 return err;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200186}
187
188static void __zero_source_counters(struct sym_entry *syme)
189{
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200190 struct symbol *sym = sym_entry__symbol(syme);
191 symbol__annotate_zero_histograms(sym);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200192}
193
194static void record_precise_ip(struct sym_entry *syme, int counter, u64 ip)
195{
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200196 struct annotation *notes;
197 struct symbol *sym;
198
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300199 if (syme != top.sym_filter_entry)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200200 return;
201
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200202 sym = sym_entry__symbol(syme);
203 notes = symbol__annotation(sym);
204
205 if (pthread_mutex_trylock(&notes->lock))
Mike Galbraith923c42c2009-07-22 20:36:03 +0200206 return;
207
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200208 ip = syme->map->map_ip(syme->map, ip);
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200209 symbol__inc_addr_samples(sym, syme->map, counter, ip);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200210
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200211 pthread_mutex_unlock(&notes->lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200212}
213
Mike Galbraith923c42c2009-07-22 20:36:03 +0200214static void show_details(struct sym_entry *syme)
215{
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
220 if (!syme)
221 return;
222
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200223 symbol = sym_entry__symbol(syme);
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 Melo8c3e10e2011-01-31 14:50:39 -0200231 printf("Showing %s for %s\n", event_name(top.sym_evsel), symbol->name);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200232 printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter);
233
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200234 more = symbol__annotate_printf(symbol, syme->map, top.sym_evsel->idx,
Arnaldo Carvalho de Melod5e3d742011-02-08 15:29:25 -0200235 0, sym_pcnt_filter, top.print_entries, 4);
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -0200236 if (top.zero)
237 symbol__annotate_zero_histogram(symbol, top.sym_evsel->idx);
238 else
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -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 Meloc44613a2009-05-29 17:03:07 -0300248static void __list_insert_active_sym(struct sym_entry *syme)
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300249{
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200250 list_add(&syme->node, &top.active_symbols);
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300251}
Ingo Molnar07800602009-04-20 15:00:56 +0200252
Arnaldo Carvalho de Melo93fc64f2011-01-29 12:08:00 -0200253static void print_sym_table(struct perf_session *session)
Ingo Molnar07800602009-04-20 15:00:56 +0200254{
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200255 char bf[160];
256 int printed = 0;
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300257 struct rb_node *nd;
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200258 struct sym_entry *syme;
259 struct rb_root tmp = RB_ROOT;
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200260 const int win_width = winsize.ws_col - 1;
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200261 int sym_width, dso_width, dso_short_width;
262 float sum_ksamples = perf_top__decay_samples(&top, &tmp);
Mike Galbraithd94b9432009-05-25 09:57:56 +0200263
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200264 puts(CONSOLE_CLEAR);
Ingo Molnar07800602009-04-20 15:00:56 +0200265
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200266 perf_top__header_snprintf(&top, bf, sizeof(bf));
267 printf("%s\n", bf);
Ingo Molnar07800602009-04-20 15:00:56 +0200268
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200269 perf_top__reset_sample_counters(&top);
Ingo Molnar07800602009-04-20 15:00:56 +0200270
Arnaldo Carvalho de Melo1a105f72009-11-17 15:40:55 -0200271 printf("%-*.*s\n", win_width, win_width, graph_dotted_line);
Ingo Molnar07800602009-04-20 15:00:56 +0200272
Arnaldo Carvalho de Melo93fc64f2011-01-29 12:08:00 -0200273 if (session->hists.stats.total_lost != 0) {
274 color_fprintf(stdout, PERF_COLOR_RED, "WARNING:");
275 printf(" LOST %" PRIu64 " events, Check IO/CPU overload\n",
276 session->hists.stats.total_lost);
277 }
278
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300279 if (top.sym_filter_entry) {
280 show_details(top.sym_filter_entry);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200281 return;
282 }
283
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200284 perf_top__find_widths(&top, &tmp, &dso_width, &dso_short_width,
285 &sym_width);
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200286
Arnaldo Carvalho de Melob63be8d2010-03-15 15:03:50 -0300287 if (sym_width + dso_width > winsize.ws_col - 29) {
288 dso_width = dso_short_width;
289 if (sym_width + dso_width > winsize.ws_col - 29)
290 sym_width = winsize.ws_col - dso_width - 29;
291 }
Arnaldo Carvalho de Melo7cc017e2009-11-24 12:05:14 -0200292 putchar('\n');
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200293 if (top.evlist->nr_entries == 1)
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200294 printf(" samples pcnt");
Ingo Molnar07800602009-04-20 15:00:56 +0200295 else
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200296 printf(" weight samples pcnt");
Ingo Molnar07800602009-04-20 15:00:56 +0200297
Arnaldo Carvalho de Melo7ced1562009-08-26 11:51:26 -0300298 if (verbose)
299 printf(" RIP ");
Arnaldo Carvalho de Melo7cc017e2009-11-24 12:05:14 -0200300 printf(" %-*.*s DSO\n", sym_width, sym_width, "function");
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200301 printf(" %s _______ _____",
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200302 top.evlist->nr_entries == 1 ? " " : "______");
Arnaldo Carvalho de Melo7ced1562009-08-26 11:51:26 -0300303 if (verbose)
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200304 printf(" ________________");
Arnaldo Carvalho de Melo1a105f72009-11-17 15:40:55 -0200305 printf(" %-*.*s", sym_width, sym_width, graph_line);
Arnaldo Carvalho de Melo7cc017e2009-11-24 12:05:14 -0200306 printf(" %-*.*s", dso_width, dso_width, graph_line);
Arnaldo Carvalho de Melo1a105f72009-11-17 15:40:55 -0200307 puts("\n");
Ingo Molnar07800602009-04-20 15:00:56 +0200308
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300309 for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) {
Ingo Molnar83a09442009-08-15 12:26:57 +0200310 struct symbol *sym;
Ingo Molnar8fc03212009-06-04 15:19:47 +0200311 double pcnt;
Ingo Molnar07800602009-04-20 15:00:56 +0200312
Ingo Molnar83a09442009-08-15 12:26:57 +0200313 syme = rb_entry(nd, struct sym_entry, rb_node);
Arnaldo Carvalho de Melo51a472d2009-11-17 18:38:00 -0200314 sym = sym_entry__symbol(syme);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200315 if (++printed > top.print_entries ||
316 (int)syme->snap_count < top.count_filter)
Arnaldo Carvalho de Meloc44613a2009-05-29 17:03:07 -0300317 continue;
Ingo Molnar07800602009-04-20 15:00:56 +0200318
Ingo Molnar2debbc82009-06-05 14:29:10 +0200319 pcnt = 100.0 - (100.0 * ((sum_ksamples - syme->snap_count) /
320 sum_ksamples));
Mike Galbraithd94b9432009-05-25 09:57:56 +0200321
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200322 if (top.evlist->nr_entries == 1 || !top.display_weighted)
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200323 printf("%20.2f ", syme->weight);
Mike Galbraithd94b9432009-05-25 09:57:56 +0200324 else
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200325 printf("%9.1f %10ld ", syme->weight, syme->snap_count);
Ingo Molnar8fc03212009-06-04 15:19:47 +0200326
Frederic Weisbecker1e11fd82009-07-02 20:14:34 +0200327 percent_color_fprintf(stdout, "%4.1f%%", pcnt);
Arnaldo Carvalho de Melo7ced1562009-08-26 11:51:26 -0300328 if (verbose)
Arnaldo Carvalho de Melo9486aa32011-01-22 20:37:02 -0200329 printf(" %016" PRIx64, sym->start);
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200330 printf(" %-*.*s", sym_width, sym_width, sym->name);
Arnaldo Carvalho de Melo7cc017e2009-11-24 12:05:14 -0200331 printf(" %-*.*s\n", dso_width, dso_width,
332 dso_width >= syme->map->dso->long_name_len ?
333 syme->map->dso->long_name :
334 syme->map->dso->short_name);
Ingo Molnar07800602009-04-20 15:00:56 +0200335 }
Ingo Molnar07800602009-04-20 15:00:56 +0200336}
337
Mike Galbraith923c42c2009-07-22 20:36:03 +0200338static void prompt_integer(int *target, const char *msg)
339{
340 char *buf = malloc(0), *p;
341 size_t dummy = 0;
342 int tmp;
343
344 fprintf(stdout, "\n%s: ", msg);
345 if (getline(&buf, &dummy, stdin) < 0)
346 return;
347
348 p = strchr(buf, '\n');
349 if (p)
350 *p = 0;
351
352 p = buf;
353 while(*p) {
354 if (!isdigit(*p))
355 goto out_free;
356 p++;
357 }
358 tmp = strtoul(buf, NULL, 10);
359 *target = tmp;
360out_free:
361 free(buf);
362}
363
364static void prompt_percent(int *target, const char *msg)
365{
366 int tmp = 0;
367
368 prompt_integer(&tmp, msg);
369 if (tmp >= 0 && tmp <= 100)
370 *target = tmp;
371}
372
373static void prompt_symbol(struct sym_entry **target, const char *msg)
374{
375 char *buf = malloc(0), *p;
376 struct sym_entry *syme = *target, *n, *found = NULL;
377 size_t dummy = 0;
378
379 /* zero counters of active symbol */
380 if (syme) {
Mike Galbraith923c42c2009-07-22 20:36:03 +0200381 __zero_source_counters(syme);
382 *target = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200383 }
384
385 fprintf(stdout, "\n%s: ", msg);
386 if (getline(&buf, &dummy, stdin) < 0)
387 goto out_free;
388
389 p = strchr(buf, '\n');
390 if (p)
391 *p = 0;
392
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200393 pthread_mutex_lock(&top.active_symbols_lock);
394 syme = list_entry(top.active_symbols.next, struct sym_entry, node);
395 pthread_mutex_unlock(&top.active_symbols_lock);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200396
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200397 list_for_each_entry_safe_from(syme, n, &top.active_symbols, node) {
Arnaldo Carvalho de Melo51a472d2009-11-17 18:38:00 -0200398 struct symbol *sym = sym_entry__symbol(syme);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200399
400 if (!strcmp(buf, sym->name)) {
401 found = syme;
402 break;
403 }
404 }
405
406 if (!found) {
Kirill Smelkov66aeb6d2010-01-13 13:22:19 -0200407 fprintf(stderr, "Sorry, %s is not active.\n", buf);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200408 sleep(1);
409 return;
410 } else
411 parse_source(found);
412
413out_free:
414 free(buf);
415}
416
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200417static void print_mapped_keys(void)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200418{
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200419 char *name = NULL;
420
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300421 if (top.sym_filter_entry) {
422 struct symbol *sym = sym_entry__symbol(top.sym_filter_entry);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200423 name = sym->name;
424 }
425
426 fprintf(stdout, "\nMapped keys:\n");
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200427 fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top.delay_secs);
428 fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top.print_entries);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200429
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200430 if (top.evlist->nr_entries > 1)
431 fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top.sym_evsel));
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200432
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200433 fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top.count_filter);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200434
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200435 fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter);
436 fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL");
437 fprintf(stdout, "\t[S] stop annotation.\n");
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200438
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200439 if (top.evlist->nr_entries > 1)
440 fprintf(stdout, "\t[w] toggle display weighted/count[E]r. \t(%d)\n", top.display_weighted ? 1 : 0);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200441
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200442 fprintf(stdout,
Kirill Smelkov1a72cfa2010-02-12 19:20:59 +0300443 "\t[K] hide kernel_symbols symbols. \t(%s)\n",
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200444 top.hide_kernel_symbols ? "yes" : "no");
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200445 fprintf(stdout,
446 "\t[U] hide user symbols. \t(%s)\n",
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200447 top.hide_user_symbols ? "yes" : "no");
448 fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top.zero ? 1 : 0);
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200449 fprintf(stdout, "\t[qQ] quit.\n");
450}
451
452static int key_mapped(int c)
453{
454 switch (c) {
455 case 'd':
456 case 'e':
457 case 'f':
458 case 'z':
459 case 'q':
460 case 'Q':
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200461 case 'K':
462 case 'U':
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200463 case 'F':
464 case 's':
465 case 'S':
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200466 return 1;
467 case 'E':
468 case 'w':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200469 return top.evlist->nr_entries > 1 ? 1 : 0;
Ingo Molnar83a09442009-08-15 12:26:57 +0200470 default:
471 break;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200472 }
473
474 return 0;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200475}
476
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800477static void handle_keypress(struct perf_session *session, int c)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200478{
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200479 if (!key_mapped(c)) {
480 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
481 struct termios tc, save;
482
483 print_mapped_keys();
484 fprintf(stdout, "\nEnter selection, or unmapped key to continue: ");
485 fflush(stdout);
486
487 tcgetattr(0, &save);
488 tc = save;
489 tc.c_lflag &= ~(ICANON | ECHO);
490 tc.c_cc[VMIN] = 0;
491 tc.c_cc[VTIME] = 0;
492 tcsetattr(0, TCSANOW, &tc);
493
494 poll(&stdin_poll, 1, -1);
495 c = getc(stdin);
496
497 tcsetattr(0, TCSAFLUSH, &save);
498 if (!key_mapped(c))
499 return;
500 }
501
Mike Galbraith923c42c2009-07-22 20:36:03 +0200502 switch (c) {
503 case 'd':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200504 prompt_integer(&top.delay_secs, "Enter display delay");
505 if (top.delay_secs < 1)
506 top.delay_secs = 1;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200507 break;
508 case 'e':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200509 prompt_integer(&top.print_entries, "Enter display entries (lines)");
510 if (top.print_entries == 0) {
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -0200511 sig_winch_handler(SIGWINCH);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -0200512 signal(SIGWINCH, sig_winch_handler);
513 } else
514 signal(SIGWINCH, SIG_DFL);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200515 break;
516 case 'E':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200517 if (top.evlist->nr_entries > 1) {
Akihiro Nagaice2d17c2011-03-23 16:29:39 +0900518 /* Select 0 as the default event: */
519 int counter = 0;
520
Mike Galbraith923c42c2009-07-22 20:36:03 +0200521 fprintf(stderr, "\nAvailable events:");
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200522
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200523 list_for_each_entry(top.sym_evsel, &top.evlist->entries, node)
524 fprintf(stderr, "\n\t%d %s", top.sym_evsel->idx, event_name(top.sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200525
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300526 prompt_integer(&counter, "Enter details event counter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200527
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300528 if (counter >= top.evlist->nr_entries) {
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200529 top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200530 fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top.sym_evsel));
Mike Galbraith923c42c2009-07-22 20:36:03 +0200531 sleep(1);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200532 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200533 }
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200534 list_for_each_entry(top.sym_evsel, &top.evlist->entries, node)
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300535 if (top.sym_evsel->idx == counter)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200536 break;
Arnaldo Carvalho de Meloec52d972011-03-11 10:11:48 -0300537 } else
538 top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200539 break;
540 case 'f':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200541 prompt_integer(&top.count_filter, "Enter display event count filter");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200542 break;
543 case 'F':
544 prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)");
545 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200546 case 'K':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200547 top.hide_kernel_symbols = !top.hide_kernel_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200548 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200549 case 'q':
550 case 'Q':
551 printf("exiting.\n");
Arnaldo Carvalho de Meloc338aee2009-11-20 20:51:27 -0200552 if (dump_symtab)
Arnaldo Carvalho de Melocbf69682010-04-27 21:22:44 -0300553 perf_session__fprintf_dsos(session, stderr);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200554 exit(0);
555 case 's':
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300556 prompt_symbol(&top.sym_filter_entry, "Enter details symbol");
Mike Galbraith923c42c2009-07-22 20:36:03 +0200557 break;
558 case 'S':
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300559 if (!top.sym_filter_entry)
Mike Galbraith923c42c2009-07-22 20:36:03 +0200560 break;
561 else {
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300562 struct sym_entry *syme = top.sym_filter_entry;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200563
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300564 top.sym_filter_entry = NULL;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200565 __zero_source_counters(syme);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200566 }
567 break;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200568 case 'U':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200569 top.hide_user_symbols = !top.hide_user_symbols;
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200570 break;
Mike Galbraith46ab9762009-07-24 10:09:50 +0200571 case 'w':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200572 top.display_weighted = ~top.display_weighted;
Mike Galbraith46ab9762009-07-24 10:09:50 +0200573 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200574 case 'z':
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200575 top.zero = !top.zero;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200576 break;
Ingo Molnar83a09442009-08-15 12:26:57 +0200577 default:
578 break;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200579 }
580}
581
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200582static void *display_thread_tui(void *arg __used)
583{
Arnaldo Carvalho de Melo58078062011-03-01 10:43:03 -0300584 int err = 0;
585 pthread_mutex_lock(&top.active_symbols_lock);
586 while (list_empty(&top.active_symbols)) {
587 err = pthread_cond_wait(&top.active_symbols_cond,
588 &top.active_symbols_lock);
589 if (err)
590 break;
591 }
592 pthread_mutex_unlock(&top.active_symbols_lock);
593 if (!err)
594 perf_top__tui_browser(&top);
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200595 exit_browser(0);
596 exit(0);
597 return NULL;
598}
599
Ingo Molnarf37a2912009-07-01 12:37:06 +0200600static void *display_thread(void *arg __used)
Ingo Molnar07800602009-04-20 15:00:56 +0200601{
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200602 struct pollfd stdin_poll = { .fd = 0, .events = POLLIN };
Mike Galbraith923c42c2009-07-22 20:36:03 +0200603 struct termios tc, save;
604 int delay_msecs, c;
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800605 struct perf_session *session = (struct perf_session *) arg;
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200606
Mike Galbraith923c42c2009-07-22 20:36:03 +0200607 tcgetattr(0, &save);
608 tc = save;
609 tc.c_lflag &= ~(ICANON | ECHO);
610 tc.c_cc[VMIN] = 0;
611 tc.c_cc[VTIME] = 0;
Mike Galbraith091bd2e2009-08-04 10:21:23 +0200612
Mike Galbraith923c42c2009-07-22 20:36:03 +0200613repeat:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200614 delay_msecs = top.delay_secs * 1000;
Mike Galbraith923c42c2009-07-22 20:36:03 +0200615 tcsetattr(0, TCSANOW, &tc);
616 /* trash return*/
617 getc(stdin);
Ingo Molnar07800602009-04-20 15:00:56 +0200618
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200619 do {
Arnaldo Carvalho de Melo93fc64f2011-01-29 12:08:00 -0200620 print_sym_table(session);
Frederic Weisbecker0f5486b2009-06-04 20:48:04 +0200621 } while (!poll(&stdin_poll, 1, delay_msecs) == 1);
622
Mike Galbraith923c42c2009-07-22 20:36:03 +0200623 c = getc(stdin);
624 tcsetattr(0, TCSAFLUSH, &save);
625
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800626 handle_keypress(session, c);
Mike Galbraith923c42c2009-07-22 20:36:03 +0200627 goto repeat;
Ingo Molnar07800602009-04-20 15:00:56 +0200628
629 return NULL;
630}
631
Anton Blanchard2ab52082009-07-01 09:00:46 +1000632/* Tag samples to be skipped. */
Ingo Molnarf37a2912009-07-01 12:37:06 +0200633static const char *skip_symbols[] = {
Anton Blanchard2ab52082009-07-01 09:00:46 +1000634 "default_idle",
Arnaldo Carvalho de Melob0e85722011-01-16 17:39:15 -0200635 "native_safe_halt",
Anton Blanchard2ab52082009-07-01 09:00:46 +1000636 "cpu_idle",
637 "enter_idle",
638 "exit_idle",
639 "mwait_idle",
Arnaldo Carvalho de Melo59b90052009-07-26 19:06:19 -0300640 "mwait_idle_with_hints",
Arnaldo Carvalho de Melo83572752009-09-25 15:02:39 -0700641 "poll_idle",
Anton Blanchard3a3393e2009-07-01 09:00:47 +1000642 "ppc64_runlatch_off",
643 "pseries_dedicated_idle_sleep",
Anton Blanchard2ab52082009-07-01 09:00:46 +1000644 NULL
645};
646
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -0300647static int symbol_filter(struct map *map, struct symbol *sym)
Ingo Molnar07800602009-04-20 15:00:56 +0200648{
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300649 struct sym_entry *syme;
650 const char *name = sym->name;
Anton Blanchard2ab52082009-07-01 09:00:46 +1000651 int i;
Ingo Molnar07800602009-04-20 15:00:56 +0200652
Anton Blanchard3a3393e2009-07-01 09:00:47 +1000653 /*
654 * ppc64 uses function descriptors and appends a '.' to the
655 * start of every instruction address. Remove it.
656 */
657 if (name[0] == '.')
658 name++;
659
Arnaldo Carvalho de Melode046872009-05-28 14:55:41 -0300660 if (!strcmp(name, "_text") ||
661 !strcmp(name, "_etext") ||
662 !strcmp(name, "_sinittext") ||
663 !strncmp("init_module", name, 11) ||
664 !strncmp("cleanup_module", name, 14) ||
665 strstr(name, "_text_start") ||
666 strstr(name, "_text_end"))
Ingo Molnar07800602009-04-20 15:00:56 +0200667 return 1;
668
Arnaldo Carvalho de Melo00a192b2009-10-30 16:28:24 -0200669 syme = symbol__priv(sym);
Arnaldo Carvalho de Melo439d4732009-10-02 03:29:58 -0300670 syme->map = map;
Arnaldo Carvalho de Meloce6f4fa2011-02-08 13:27:39 -0200671 symbol__annotate_init(map, sym);
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200672
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300673 if (!top.sym_filter_entry && sym_filter && !strcmp(name, sym_filter)) {
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200674 /* schedule initial sym_filter_entry setup */
675 sym_filter_entry_sched = syme;
676 sym_filter = NULL;
677 }
Mike Galbraith923c42c2009-07-22 20:36:03 +0200678
Anton Blanchard2ab52082009-07-01 09:00:46 +1000679 for (i = 0; skip_symbols[i]; i++) {
680 if (!strcmp(skip_symbols[i], name)) {
Arnaldo Carvalho de Melo171b3be2011-03-11 13:36:01 -0300681 sym->ignore = true;
Anton Blanchard2ab52082009-07-01 09:00:46 +1000682 break;
683 }
684 }
Ingo Molnar07800602009-04-20 15:00:56 +0200685
Ingo Molnar07800602009-04-20 15:00:56 +0200686 return 0;
687}
688
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200689static void perf_event__process_sample(const union perf_event *event,
690 struct perf_sample *sample,
691 struct perf_session *session)
Ingo Molnar07800602009-04-20 15:00:56 +0200692{
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200693 u64 ip = event->ip.ip;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200694 struct sym_entry *syme;
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200695 struct addr_location al;
Arnaldo Carvalho de Melo23346f22010-04-27 21:17:50 -0300696 struct machine *machine;
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200697 u8 origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
Ingo Molnar07800602009-04-20 15:00:56 +0200698
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200699 ++top.samples;
Arnaldo Carvalho de Melo24bfef02010-01-21 13:04:43 -0200700
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200701 switch (origin) {
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200702 case PERF_RECORD_MISC_USER:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200703 ++top.us_samples;
704 if (top.hide_user_symbols)
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200705 return;
Arnaldo Carvalho de Melo23346f22010-04-27 21:17:50 -0300706 machine = perf_session__find_host_machine(session);
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200707 break;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200708 case PERF_RECORD_MISC_KERNEL:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200709 ++top.kernel_samples;
710 if (top.hide_kernel_symbols)
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -0200711 return;
Arnaldo Carvalho de Melo23346f22010-04-27 21:17:50 -0300712 machine = perf_session__find_host_machine(session);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200713 break;
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800714 case PERF_RECORD_MISC_GUEST_KERNEL:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200715 ++top.guest_kernel_samples;
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200716 machine = perf_session__find_machine(session, event->ip.pid);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800717 break;
718 case PERF_RECORD_MISC_GUEST_USER:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200719 ++top.guest_us_samples;
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800720 /*
721 * TODO: we don't process guest user from host side
722 * except simple counting.
723 */
724 return;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200725 default:
Ingo Molnar07800602009-04-20 15:00:56 +0200726 return;
727 }
728
Arnaldo Carvalho de Melo23346f22010-04-27 21:17:50 -0300729 if (!machine && perf_guest) {
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800730 pr_err("Can't find guest [%d]'s kernel information\n",
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200731 event->ip.pid);
Zhang, Yanmina1645ce2010-04-19 13:32:50 +0800732 return;
733 }
734
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200735 if (event->header.misc & PERF_RECORD_MISC_EXACT_IP)
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200736 top.exact_samples++;
Peter Zijlstra1676b8a2010-03-04 14:19:36 +0100737
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200738 if (perf_event__preprocess_sample(event, session, &al, sample,
739 symbol_filter) < 0 ||
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200740 al.filtered)
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200741 return;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200742
Arnaldo Carvalho de Melo5f6f5582011-05-27 11:53:28 -0300743 if (!kptr_restrict_warned &&
744 symbol_conf.kptr_restrict &&
745 al.cpumode == PERF_RECORD_MISC_KERNEL) {
746 ui__warning(
747"Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n"
748"Check /proc/sys/kernel/kptr_restrict.\n\n"
749"Kernel%s samples will not be resolved.\n",
750 !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ?
751 " modules" : "");
752 if (use_browser <= 0)
753 sleep(5);
754 kptr_restrict_warned = true;
755 }
756
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200757 if (al.sym == NULL) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300758 const char *msg = "Kernel samples will not be resolved.\n";
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200759 /*
760 * As we do lazy loading of symtabs we only will know if the
761 * specified vmlinux file is invalid when we actually have a
762 * hit in kernel space and then try to load it. So if we get
763 * here and there are _no_ symbols in the DSO backing the
764 * kernel map, bail out.
765 *
766 * We may never get here, for instance, if we use -K/
767 * --hide-kernel-symbols, even if the user specifies an
768 * invalid --vmlinux ;-)
769 */
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300770 if (!kptr_restrict_warned && !vmlinux_warned &&
771 al.map == machine->vmlinux_maps[MAP__FUNCTION] &&
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200772 RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) {
Arnaldo Carvalho de Meloe4a338d2011-05-27 13:42:16 -0300773 if (symbol_conf.vmlinux_name) {
774 ui__warning("The %s file can't be used.\n%s",
775 symbol_conf.vmlinux_name, msg);
776 } else {
777 ui__warning("A vmlinux file was not found.\n%s",
778 msg);
779 }
780
781 if (use_browser <= 0)
782 sleep(5);
783 vmlinux_warned = true;
Arnaldo Carvalho de Melo72b8fa12010-01-27 21:05:49 -0200784 }
785
786 return;
787 }
788
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200789 /* let's see, whether we need to install initial sym_filter_entry */
790 if (sym_filter_entry_sched) {
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300791 top.sym_filter_entry = sym_filter_entry_sched;
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200792 sym_filter_entry_sched = NULL;
Arnaldo Carvalho de Meloc97cf422011-02-22 12:02:07 -0300793 if (parse_source(top.sym_filter_entry) < 0) {
794 struct symbol *sym = sym_entry__symbol(top.sym_filter_entry);
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300795
796 pr_err("Can't annotate %s", sym->name);
Arnaldo Carvalho de Melo878b4392011-03-11 13:13:36 -0300797 if (top.sym_filter_entry->map->dso->symtab_type == SYMTAB__KALLSYMS) {
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300798 pr_err(": No vmlinux file was found in the path:\n");
Arnaldo Carvalho de Melo5ad90e42010-05-26 13:26:02 -0300799 machine__fprintf_vmlinux_path(machine, stderr);
Arnaldo Carvalho de Melob0a9ab62010-03-15 11:46:58 -0300800 } else
801 pr_err(".\n");
802 exit(1);
803 }
Kirill Smelkov6cff0e82010-02-03 16:52:08 -0200804 }
805
Arnaldo Carvalho de Melo1ed091c2009-11-27 16:29:23 -0200806 syme = symbol__priv(al.sym);
Arnaldo Carvalho de Melo171b3be2011-03-11 13:36:01 -0300807 if (!al.sym->ignore) {
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200808 struct perf_evsel *evsel;
809
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200810 evsel = perf_evlist__id2evsel(top.evlist, sample->id);
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200811 assert(evsel != NULL);
812 syme->count[evsel->idx]++;
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -0200813 record_precise_ip(syme, evsel->idx, ip);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200814 pthread_mutex_lock(&top.active_symbols_lock);
Arnaldo Carvalho de Melo58078062011-03-01 10:43:03 -0300815 if (list_empty(&syme->node) || !syme->node.next) {
816 static bool first = true;
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200817 __list_insert_active_sym(syme);
Arnaldo Carvalho de Melo58078062011-03-01 10:43:03 -0300818 if (first) {
819 pthread_cond_broadcast(&top.active_symbols_cond);
820 first = false;
821 }
822 }
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200823 pthread_mutex_unlock(&top.active_symbols_lock);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200824 }
825}
826
Arnaldo Carvalho de Meloaece9482011-05-15 09:39:00 -0300827static void perf_session__mmap_read_idx(struct perf_session *self, int idx)
Ingo Molnar07800602009-04-20 15:00:56 +0200828{
Arnaldo Carvalho de Melo8d50e5b2011-01-29 13:02:00 -0200829 struct perf_sample sample;
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200830 union perf_event *event;
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200831 int ret;
Ingo Molnar07800602009-04-20 15:00:56 +0200832
Arnaldo Carvalho de Meloaece9482011-05-15 09:39:00 -0300833 while ((event = perf_evlist__mmap_read(top.evlist, idx)) != NULL) {
Frederic Weisbecker5538bec2011-05-22 02:17:22 +0200834 ret = perf_session__parse_sample(self, event, &sample);
835 if (ret) {
836 pr_err("Can't parse sample, err = %d\n", ret);
837 continue;
838 }
Arnaldo Carvalho de Melo04391de2011-01-15 10:40:59 -0200839
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200840 if (event->header.type == PERF_RECORD_SAMPLE)
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200841 perf_event__process_sample(event, &sample, self);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200842 else
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200843 perf_event__process(event, &sample, self);
Ingo Molnar07800602009-04-20 15:00:56 +0200844 }
Ingo Molnar07800602009-04-20 15:00:56 +0200845}
846
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200847static void perf_session__mmap_read(struct perf_session *self)
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200848{
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200849 int i;
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200850
Arnaldo Carvalho de Meloaece9482011-05-15 09:39:00 -0300851 for (i = 0; i < top.evlist->nr_mmaps; i++)
852 perf_session__mmap_read_idx(self, i);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200853}
854
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200855static void start_counters(struct perf_evlist *evlist)
856{
857 struct perf_evsel *counter;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200858
859 list_for_each_entry(counter, &evlist->entries, node) {
860 struct perf_event_attr *attr = &counter->attr;
861
862 attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID;
863
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200864 if (top.freq) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200865 attr->sample_type |= PERF_SAMPLE_PERIOD;
866 attr->freq = 1;
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200867 attr->sample_freq = top.freq;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200868 }
869
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200870 if (evlist->nr_entries > 1) {
871 attr->sample_type |= PERF_SAMPLE_ID;
872 attr->read_format |= PERF_FORMAT_ID;
873 }
874
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200875 attr->mmap = 1;
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -0300876 attr->inherit = inherit;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200877try_again:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200878 if (perf_evsel__open(counter, top.evlist->cpus,
Arnaldo Carvalho de Melo5d2cd902011-04-14 11:20:14 -0300879 top.evlist->threads, group) < 0) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200880 int err = errno;
881
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300882 if (err == EPERM || err == EACCES) {
883 ui__warning_paranoid();
884 goto out_err;
885 }
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200886 /*
887 * If it's cycles then fall back to hrtimer
888 * based cpu-clock-tick sw counter, which
889 * is always available even if no PMU support:
890 */
891 if (attr->type == PERF_TYPE_HARDWARE &&
892 attr->config == PERF_COUNT_HW_CPU_CYCLES) {
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200893 if (verbose)
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300894 ui__warning("Cycles event not supported,\n"
895 "trying to fall back to cpu-clock-ticks\n");
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200896
897 attr->type = PERF_TYPE_SOFTWARE;
898 attr->config = PERF_COUNT_SW_CPU_CLOCK;
899 goto try_again;
900 }
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300901
David Ahernca6a4252011-03-25 13:11:11 -0600902 if (err == ENOENT) {
903 ui__warning("The %s event is not supported.\n",
904 event_name(counter));
905 goto out_err;
906 }
907
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300908 ui__warning("The sys_perf_event_open() syscall "
909 "returned with %d (%s). /bin/dmesg "
910 "may provide additional information.\n"
911 "No CONFIG_PERF_EVENTS=y kernel support "
912 "configured?\n", err, strerror(err));
913 goto out_err;
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200914 }
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200915 }
Arnaldo Carvalho de Melo70db7532011-01-12 22:39:13 -0200916
Arnaldo Carvalho de Meloc286c412011-03-28 09:50:11 -0300917 if (perf_evlist__mmap(evlist, mmap_pages, false) < 0) {
918 ui__warning("Failed to mmap with %d (%s)\n",
919 errno, strerror(errno));
920 goto out_err;
921 }
922
923 return;
924
925out_err:
926 exit_browser(0);
927 exit(0);
Arnaldo Carvalho de Melo72cb7012011-01-12 10:52:47 -0200928}
929
Ingo Molnar716c69f2009-06-07 17:31:52 +0200930static int __cmd_top(void)
931{
932 pthread_t thread;
Kyle McMartinfb7d0b32011-01-24 11:13:04 -0500933 int ret __used;
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200934 /*
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -0200935 * FIXME: perf_session__new should allow passing a O_MMAP, so that all this
936 * mmap reading, etc is encapsulated in it. Use O_WRONLY for now.
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200937 */
Ian Munsie21ef97f2010-12-10 14:09:16 +1100938 struct perf_session *session = perf_session__new(NULL, O_WRONLY, false, false, NULL);
Arnaldo Carvalho de Melob3165f42009-12-13 19:50:28 -0200939 if (session == NULL)
940 return -ENOMEM;
Ingo Molnar07800602009-04-20 15:00:56 +0200941
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200942 if (top.target_tid != -1)
Arnaldo Carvalho de Melo7c940c12011-02-11 11:45:54 -0200943 perf_event__synthesize_thread_map(top.evlist->threads,
944 perf_event__process, session);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200945 else
Arnaldo Carvalho de Melo8115d602011-01-29 14:01:45 -0200946 perf_event__synthesize_threads(perf_event__process, session);
Arnaldo Carvalho de Melo5b2bb752009-10-26 19:23:19 -0200947
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200948 start_counters(top.evlist);
Arnaldo Carvalho de Meloa91e5432011-03-10 11:15:54 -0300949 session->evlist = top.evlist;
950 perf_session__update_sample_type(session);
Ingo Molnar07800602009-04-20 15:00:56 +0200951
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200952 /* Wait for a minimal set of events before starting the snapshot */
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200953 poll(top.evlist->pollfd, top.evlist->nr_fds, 100);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200954
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200955 perf_session__mmap_read(session);
Frederic Weisbecker2f011902009-06-06 23:10:43 +0200956
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -0200957 if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui :
958 display_thread), session)) {
Ingo Molnar07800602009-04-20 15:00:56 +0200959 printf("Could not create display thread.\n");
960 exit(-1);
961 }
962
963 if (realtime_prio) {
964 struct sched_param param;
965
966 param.sched_priority = realtime_prio;
967 if (sched_setscheduler(0, SCHED_FIFO, &param)) {
968 printf("Could not set realtime priority.\n");
969 exit(-1);
970 }
971 }
972
973 while (1) {
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200974 u64 hits = top.samples;
Ingo Molnar07800602009-04-20 15:00:56 +0200975
Arnaldo Carvalho de Melod8f66242009-12-13 19:50:24 -0200976 perf_session__mmap_read(session);
Ingo Molnar07800602009-04-20 15:00:56 +0200977
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200978 if (hits == top.samples)
979 ret = poll(top.evlist->pollfd, top.evlist->nr_fds, 100);
Ingo Molnar07800602009-04-20 15:00:56 +0200980 }
981
982 return 0;
983}
Ingo Molnarb456bae2009-05-26 09:17:18 +0200984
985static const char * const top_usage[] = {
986 "perf top [<options>]",
987 NULL
988};
989
Ingo Molnarb456bae2009-05-26 09:17:18 +0200990static const struct option options[] = {
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200991 OPT_CALLBACK('e', "event", &top.evlist, "event",
Thomas Gleixner86847b62009-06-06 12:24:17 +0200992 "event selector. use 'perf list' to list available events",
Jiri Olsaf120f9d2011-07-14 11:25:32 +0200993 parse_events_option),
Ingo Molnarb456bae2009-05-26 09:17:18 +0200994 OPT_INTEGER('c', "count", &default_interval,
995 "event period to sample"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200996 OPT_INTEGER('p', "pid", &top.target_pid,
Zhang, Yanmind6d901c2010-03-18 11:36:05 -0300997 "profile events on existing process id"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -0200998 OPT_INTEGER('t', "tid", &top.target_tid,
Zhang, Yanmind6d901c2010-03-18 11:36:05 -0300999 "profile events on existing thread id"),
Ingo Molnarb456bae2009-05-26 09:17:18 +02001000 OPT_BOOLEAN('a', "all-cpus", &system_wide,
1001 "system-wide collection from all CPUs"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001002 OPT_STRING('C', "cpu", &top.cpu_list, "cpu",
Stephane Eranianc45c6ea2010-05-28 12:00:01 +02001003 "list of cpus to monitor"),
Arnaldo Carvalho de Melob32d1332009-11-24 12:05:15 -02001004 OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
1005 "file", "vmlinux pathname"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001006 OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001007 "hide kernel symbols"),
Arnaldo Carvalho de Melo19679362010-05-17 15:39:16 -03001008 OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"),
Ingo Molnarb456bae2009-05-26 09:17:18 +02001009 OPT_INTEGER('r', "realtime", &realtime_prio,
1010 "collect data with this RT SCHED_FIFO priority"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001011 OPT_INTEGER('d', "delay", &top.delay_secs,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001012 "number of seconds to delay between refreshes"),
1013 OPT_BOOLEAN('D', "dump-symtab", &dump_symtab,
1014 "dump the symbol table used for profiling"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001015 OPT_INTEGER('f', "count-filter", &top.count_filter,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001016 "only display functions with more events than this"),
1017 OPT_BOOLEAN('g', "group", &group,
1018 "put the counters into a counter group"),
Mike Galbraith0fdc7e62009-07-21 10:30:36 +02001019 OPT_BOOLEAN('i', "inherit", &inherit,
1020 "child tasks inherit counters"),
Mike Galbraith923c42c2009-07-22 20:36:03 +02001021 OPT_STRING('s', "sym-annotate", &sym_filter, "symbol name",
Kirill Smelkov6cff0e82010-02-03 16:52:08 -02001022 "symbol to annotate"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001023 OPT_BOOLEAN('z', "zero", &top.zero,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001024 "zero history across updates"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001025 OPT_INTEGER('F', "freq", &top.freq,
Ingo Molnarb456bae2009-05-26 09:17:18 +02001026 "profile at this frequency"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001027 OPT_INTEGER('E', "entries", &top.print_entries,
Ingo Molnar6e53cdf2009-06-04 08:53:05 +02001028 "display this many functions"),
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001029 OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols,
Arnaldo Carvalho de Melo8ffcda12009-11-16 21:45:24 -02001030 "hide user symbols"),
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -02001031 OPT_BOOLEAN(0, "tui", &use_tui, "Use the TUI interface"),
1032 OPT_BOOLEAN(0, "stdio", &use_stdio, "Use the stdio interface"),
Ian Munsiec0555642010-04-13 18:37:33 +10001033 OPT_INCR('v', "verbose", &verbose,
Ingo Molnar3da297a2009-06-07 17:39:02 +02001034 "be more verbose (show counter open errors, etc)"),
Ingo Molnarb456bae2009-05-26 09:17:18 +02001035 OPT_END()
1036};
1037
Ingo Molnarf37a2912009-07-01 12:37:06 +02001038int cmd_top(int argc, const char **argv, const char *prefix __used)
Ingo Molnarb456bae2009-05-26 09:17:18 +02001039{
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001040 struct perf_evsel *pos;
1041 int status = -ENOMEM;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001042
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001043 top.evlist = perf_evlist__new(NULL, NULL);
1044 if (top.evlist == NULL)
Arnaldo Carvalho de Melo361c99a2011-01-11 20:56:53 -02001045 return -ENOMEM;
1046
Ingo Molnarb456bae2009-05-26 09:17:18 +02001047 page_size = sysconf(_SC_PAGE_SIZE);
1048
Ingo Molnarb456bae2009-05-26 09:17:18 +02001049 argc = parse_options(argc, argv, options, top_usage, 0);
1050 if (argc)
1051 usage_with_options(top_usage, options);
1052
Arnaldo Carvalho de Meloc0443df2011-01-31 18:19:33 -02001053 /*
1054 * XXX For now start disabled, only using TUI if explicitely asked for.
1055 * Change that when handle_keys equivalent gets written, live annotation
1056 * done, etc.
1057 */
1058 use_browser = 0;
1059
1060 if (use_stdio)
1061 use_browser = 0;
1062 else if (use_tui)
1063 use_browser = 1;
1064
1065 setup_browser(false);
1066
Ingo Molnarb456bae2009-05-26 09:17:18 +02001067 /* CPU and PID are mutually exclusive */
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001068 if (top.target_tid > 0 && top.cpu_list) {
Ingo Molnarb456bae2009-05-26 09:17:18 +02001069 printf("WARNING: PID switch overriding CPU\n");
1070 sleep(1);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001071 top.cpu_list = NULL;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001072 }
1073
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001074 if (top.target_pid != -1)
1075 top.target_tid = top.target_pid;
Arnaldo Carvalho de Melo7e2ed092011-01-30 11:59:43 -02001076
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001077 if (perf_evlist__create_maps(top.evlist, top.target_pid,
1078 top.target_tid, top.cpu_list) < 0)
Arnaldo Carvalho de Melo7e2ed092011-01-30 11:59:43 -02001079 usage_with_options(top_usage, options);
1080
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001081 if (!top.evlist->nr_entries &&
1082 perf_evlist__add_default(top.evlist) < 0) {
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001083 pr_err("Not enough memory for event selector list\n");
1084 return -ENOMEM;
1085 }
Arnaldo Carvalho de Melo5a8e5a32009-11-17 18:38:01 -02001086
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001087 if (top.delay_secs < 1)
1088 top.delay_secs = 1;
Frederic Weisbecker2f335a02009-06-05 19:31:01 +02001089
Mike Galbraith7e4ff9e2009-10-12 07:56:03 +02001090 /*
1091 * User specified count overrides default frequency.
1092 */
1093 if (default_interval)
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001094 top.freq = 0;
1095 else if (top.freq) {
1096 default_interval = top.freq;
Mike Galbraith7e4ff9e2009-10-12 07:56:03 +02001097 } else {
1098 fprintf(stderr, "frequency and count are zero, aborting\n");
1099 exit(EXIT_FAILURE);
1100 }
1101
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001102 list_for_each_entry(pos, &top.evlist->entries, node) {
1103 if (perf_evsel__alloc_fd(pos, top.evlist->cpus->nr,
1104 top.evlist->threads->nr) < 0)
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001105 goto out_free_fd;
1106 /*
1107 * Fill in the ones not specifically initialized via -c:
1108 */
1109 if (pos->attr.sample_period)
1110 continue;
1111
1112 pos->attr.sample_period = default_interval;
1113 }
1114
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001115 if (perf_evlist__alloc_pollfd(top.evlist) < 0 ||
1116 perf_evlist__alloc_mmap(top.evlist) < 0)
Arnaldo Carvalho de Melo5c581042011-01-11 22:30:02 -02001117 goto out_free_fd;
1118
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001119 top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node);
Arnaldo Carvalho de Melocc841582011-01-11 15:16:52 -02001120
Arnaldo Carvalho de Melo36532462011-02-06 14:54:44 -02001121 symbol_conf.priv_size = (sizeof(struct sym_entry) + sizeof(struct annotation) +
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001122 (top.evlist->nr_entries + 1) * sizeof(unsigned long));
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001123
1124 symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
1125 if (symbol__init() < 0)
1126 return -1;
1127
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -02001128 get_term_dimensions(&winsize);
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001129 if (top.print_entries == 0) {
Arnaldo Carvalho de Melo13cc5072009-11-17 15:40:54 -02001130 update_print_entries(&winsize);
Arnaldo Carvalho de Melo3b6ed982009-11-16 19:30:27 -02001131 signal(SIGWINCH, sig_winch_handler);
1132 }
1133
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001134 status = __cmd_top();
1135out_free_fd:
Arnaldo Carvalho de Melo8c3e10e2011-01-31 14:50:39 -02001136 perf_evlist__delete(top.evlist);
Arnaldo Carvalho de Melo69aad6f2011-01-03 16:39:04 -02001137
1138 return status;
Ingo Molnarb456bae2009-05-26 09:17:18 +02001139}