Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1 | /* |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 2 | * builtin-top.c |
| 3 | * |
| 4 | * Builtin top command: Display a continuously updated profile of |
| 5 | * any workload, CPU or specific PID. |
| 6 | * |
| 7 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> |
| 8 | * |
| 9 | * Improvements and fixes by: |
| 10 | * |
| 11 | * Arjan van de Ven <arjan@linux.intel.com> |
| 12 | * Yanmin Zhang <yanmin.zhang@intel.com> |
| 13 | * Wu Fengguang <fengguang.wu@intel.com> |
| 14 | * Mike Galbraith <efault@gmx.de> |
| 15 | * Paul Mackerras <paulus@samba.org> |
| 16 | * |
| 17 | * Released under the GPL v2. (and only v2, not any later version) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 18 | */ |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 19 | #include "builtin.h" |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 20 | |
Peter Zijlstra | 1a482f3 | 2009-05-23 18:28:58 +0200 | [diff] [blame] | 21 | #include "perf.h" |
Ingo Molnar | bf9e187 | 2009-06-02 23:37:05 +0200 | [diff] [blame] | 22 | |
Ingo Molnar | 8fc0321 | 2009-06-04 15:19:47 +0200 | [diff] [blame] | 23 | #include "util/color.h" |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 24 | #include "util/evsel.h" |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 25 | #include "util/session.h" |
| 26 | #include "util/symbol.h" |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 27 | #include "util/thread.h" |
Ingo Molnar | 148be2c | 2009-04-27 08:02:14 +0200 | [diff] [blame] | 28 | #include "util/util.h" |
Arnaldo Carvalho de Melo | 43cbcd8 | 2009-07-01 12:28:37 -0300 | [diff] [blame] | 29 | #include <linux/rbtree.h> |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 30 | #include "util/parse-options.h" |
| 31 | #include "util/parse-events.h" |
Paul Mackerras | a12b51c | 2010-03-10 20:36:09 +1100 | [diff] [blame] | 32 | #include "util/cpumap.h" |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 33 | #include "util/xyarray.h" |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 34 | |
Frederic Weisbecker | 8f28827a | 2009-08-16 22:05:48 +0200 | [diff] [blame] | 35 | #include "util/debug.h" |
| 36 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 37 | #include <assert.h> |
| 38 | #include <fcntl.h> |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 39 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 40 | #include <stdio.h> |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 41 | #include <termios.h> |
| 42 | #include <unistd.h> |
Ingo Molnar | 0e9b20b | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 43 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 44 | #include <errno.h> |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 45 | #include <time.h> |
| 46 | #include <sched.h> |
| 47 | #include <pthread.h> |
| 48 | |
| 49 | #include <sys/syscall.h> |
| 50 | #include <sys/ioctl.h> |
| 51 | #include <sys/poll.h> |
| 52 | #include <sys/prctl.h> |
| 53 | #include <sys/wait.h> |
| 54 | #include <sys/uio.h> |
| 55 | #include <sys/mman.h> |
| 56 | |
| 57 | #include <linux/unistd.h> |
| 58 | #include <linux/types.h> |
| 59 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 60 | #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y)) |
Ingo Molnar | a21ca2c | 2009-06-06 09:58:57 +0200 | [diff] [blame] | 61 | |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 62 | static bool system_wide = false; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 63 | |
Mike Galbraith | 7e4ff9e | 2009-10-12 07:56:03 +0200 | [diff] [blame] | 64 | static int default_interval = 0; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 65 | |
Ingo Molnar | 42e59d7 | 2009-10-06 15:14:21 +0200 | [diff] [blame] | 66 | static int count_filter = 5; |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 67 | static int print_entries; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 68 | |
Ingo Molnar | 42e59d7 | 2009-10-06 15:14:21 +0200 | [diff] [blame] | 69 | static int target_pid = -1; |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 70 | static int target_tid = -1; |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 71 | static struct thread_map *threads; |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 72 | static bool inherit = false; |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 73 | static struct cpu_map *cpus; |
Arnaldo Carvalho de Melo | 1967936 | 2010-05-17 15:39:16 -0300 | [diff] [blame] | 74 | static int realtime_prio = 0; |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 75 | static bool group = false; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 76 | static unsigned int page_size; |
Ingo Molnar | 42e59d7 | 2009-10-06 15:14:21 +0200 | [diff] [blame] | 77 | static unsigned int mmap_pages = 16; |
| 78 | static int freq = 1000; /* 1 KHz */ |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 79 | |
Ingo Molnar | 42e59d7 | 2009-10-06 15:14:21 +0200 | [diff] [blame] | 80 | static int delay_secs = 2; |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 81 | static bool zero = false; |
| 82 | static bool dump_symtab = false; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 83 | |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 84 | static bool hide_kernel_symbols = false; |
| 85 | static bool hide_user_symbols = false; |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 86 | static struct winsize winsize; |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 87 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 88 | /* |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 89 | * Source |
| 90 | */ |
| 91 | |
| 92 | struct source_line { |
| 93 | u64 eip; |
| 94 | unsigned long count[MAX_COUNTERS]; |
| 95 | char *line; |
| 96 | struct source_line *next; |
| 97 | }; |
| 98 | |
Arnaldo Carvalho de Melo | edb7c60 | 2010-05-17 16:22:41 -0300 | [diff] [blame] | 99 | static const char *sym_filter = NULL; |
Ingo Molnar | 42e59d7 | 2009-10-06 15:14:21 +0200 | [diff] [blame] | 100 | struct sym_entry *sym_filter_entry = NULL; |
Kirill Smelkov | 6cff0e8 | 2010-02-03 16:52:08 -0200 | [diff] [blame] | 101 | struct sym_entry *sym_filter_entry_sched = NULL; |
Ingo Molnar | 42e59d7 | 2009-10-06 15:14:21 +0200 | [diff] [blame] | 102 | static int sym_pcnt_filter = 5; |
| 103 | static int sym_counter = 0; |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 104 | static struct perf_evsel *sym_evsel = NULL; |
Ingo Molnar | 42e59d7 | 2009-10-06 15:14:21 +0200 | [diff] [blame] | 105 | static int display_weighted = -1; |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 106 | static const char *cpu_list; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 107 | |
| 108 | /* |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 109 | * Symbols |
| 110 | */ |
| 111 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 112 | struct sym_entry_source { |
| 113 | struct source_line *source; |
| 114 | struct source_line *lines; |
| 115 | struct source_line **lines_tail; |
| 116 | pthread_mutex_t lock; |
| 117 | }; |
| 118 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 119 | struct sym_entry { |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 120 | struct rb_node rb_node; |
| 121 | struct list_head node; |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 122 | unsigned long snap_count; |
| 123 | double weight; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 124 | int skip; |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 125 | u16 name_len; |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 126 | u8 origin; |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 127 | struct map *map; |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 128 | struct sym_entry_source *src; |
Arnaldo Carvalho de Melo | 5a8e5a3 | 2009-11-17 18:38:01 -0200 | [diff] [blame] | 129 | unsigned long count[0]; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 130 | }; |
| 131 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 132 | /* |
| 133 | * Source functions |
| 134 | */ |
| 135 | |
Arnaldo Carvalho de Melo | 51a472d | 2009-11-17 18:38:00 -0200 | [diff] [blame] | 136 | static inline struct symbol *sym_entry__symbol(struct sym_entry *self) |
| 137 | { |
Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 138 | return ((void *)self) + symbol_conf.priv_size; |
Arnaldo Carvalho de Melo | 51a472d | 2009-11-17 18:38:00 -0200 | [diff] [blame] | 139 | } |
| 140 | |
Arnaldo Carvalho de Melo | 895f0ed | 2010-03-11 20:12:41 -0300 | [diff] [blame] | 141 | void get_term_dimensions(struct winsize *ws) |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 142 | { |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 143 | char *s = getenv("LINES"); |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 144 | |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 145 | if (s != NULL) { |
| 146 | ws->ws_row = atoi(s); |
| 147 | s = getenv("COLUMNS"); |
| 148 | if (s != NULL) { |
| 149 | ws->ws_col = atoi(s); |
| 150 | if (ws->ws_row && ws->ws_col) |
| 151 | return; |
| 152 | } |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 153 | } |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 154 | #ifdef TIOCGWINSZ |
| 155 | if (ioctl(1, TIOCGWINSZ, ws) == 0 && |
| 156 | ws->ws_row && ws->ws_col) |
| 157 | return; |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 158 | #endif |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 159 | ws->ws_row = 25; |
| 160 | ws->ws_col = 80; |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 161 | } |
| 162 | |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 163 | static void update_print_entries(struct winsize *ws) |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 164 | { |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 165 | print_entries = ws->ws_row; |
| 166 | |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 167 | if (print_entries > 9) |
| 168 | print_entries -= 9; |
| 169 | } |
| 170 | |
| 171 | static void sig_winch_handler(int sig __used) |
| 172 | { |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 173 | get_term_dimensions(&winsize); |
| 174 | update_print_entries(&winsize); |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 175 | } |
| 176 | |
Arnaldo Carvalho de Melo | b0a9ab6 | 2010-03-15 11:46:58 -0300 | [diff] [blame] | 177 | static int parse_source(struct sym_entry *syme) |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 178 | { |
| 179 | struct symbol *sym; |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 180 | struct sym_entry_source *source; |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 181 | struct map *map; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 182 | FILE *file; |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 183 | char command[PATH_MAX*2]; |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 184 | const char *path; |
| 185 | u64 len; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 186 | |
| 187 | if (!syme) |
Arnaldo Carvalho de Melo | b0a9ab6 | 2010-03-15 11:46:58 -0300 | [diff] [blame] | 188 | return -1; |
| 189 | |
| 190 | sym = sym_entry__symbol(syme); |
| 191 | map = syme->map; |
| 192 | |
| 193 | /* |
| 194 | * We can't annotate with just /proc/kallsyms |
| 195 | */ |
| 196 | if (map->dso->origin == DSO__ORIG_KERNEL) |
| 197 | return -1; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 198 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 199 | if (syme->src == NULL) { |
Arnaldo Carvalho de Melo | 3647948 | 2009-11-24 12:05:16 -0200 | [diff] [blame] | 200 | syme->src = zalloc(sizeof(*source)); |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 201 | if (syme->src == NULL) |
Arnaldo Carvalho de Melo | b0a9ab6 | 2010-03-15 11:46:58 -0300 | [diff] [blame] | 202 | return -1; |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 203 | pthread_mutex_init(&syme->src->lock, NULL); |
| 204 | } |
| 205 | |
| 206 | source = syme->src; |
| 207 | |
| 208 | if (source->lines) { |
| 209 | pthread_mutex_lock(&source->lock); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 210 | goto out_assign; |
| 211 | } |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 212 | path = map->dso->long_name; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 213 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 214 | len = sym->end - sym->start; |
| 215 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 216 | sprintf(command, |
Arnaldo Carvalho de Melo | 5f48536 | 2010-02-07 11:46:16 -0200 | [diff] [blame] | 217 | "objdump --start-address=%#0*Lx --stop-address=%#0*Lx -dS %s", |
| 218 | BITS_PER_LONG / 4, map__rip_2objdump(map, sym->start), |
| 219 | BITS_PER_LONG / 4, map__rip_2objdump(map, sym->end), path); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 220 | |
| 221 | file = popen(command, "r"); |
| 222 | if (!file) |
Arnaldo Carvalho de Melo | b0a9ab6 | 2010-03-15 11:46:58 -0300 | [diff] [blame] | 223 | return -1; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 224 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 225 | pthread_mutex_lock(&source->lock); |
| 226 | source->lines_tail = &source->lines; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 227 | while (!feof(file)) { |
| 228 | struct source_line *src; |
| 229 | size_t dummy = 0; |
Kirill Smelkov | ee11b90 | 2010-02-07 11:46:15 -0200 | [diff] [blame] | 230 | char *c, *sep; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 231 | |
| 232 | src = malloc(sizeof(struct source_line)); |
| 233 | assert(src != NULL); |
| 234 | memset(src, 0, sizeof(struct source_line)); |
| 235 | |
| 236 | if (getline(&src->line, &dummy, file) < 0) |
| 237 | break; |
| 238 | if (!src->line) |
| 239 | break; |
| 240 | |
| 241 | c = strchr(src->line, '\n'); |
| 242 | if (c) |
| 243 | *c = 0; |
| 244 | |
| 245 | src->next = NULL; |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 246 | *source->lines_tail = src; |
| 247 | source->lines_tail = &src->next; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 248 | |
Kirill Smelkov | ee11b90 | 2010-02-07 11:46:15 -0200 | [diff] [blame] | 249 | src->eip = strtoull(src->line, &sep, 16); |
| 250 | if (*sep == ':') |
| 251 | src->eip = map__objdump_2ip(map, src->eip); |
| 252 | else /* this line has no ip info (e.g. source line) */ |
| 253 | src->eip = 0; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 254 | } |
| 255 | pclose(file); |
| 256 | out_assign: |
| 257 | sym_filter_entry = syme; |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 258 | pthread_mutex_unlock(&source->lock); |
Arnaldo Carvalho de Melo | b0a9ab6 | 2010-03-15 11:46:58 -0300 | [diff] [blame] | 259 | return 0; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 260 | } |
| 261 | |
| 262 | static void __zero_source_counters(struct sym_entry *syme) |
| 263 | { |
| 264 | int i; |
| 265 | struct source_line *line; |
| 266 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 267 | line = syme->src->lines; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 268 | while (line) { |
| 269 | for (i = 0; i < nr_counters; i++) |
| 270 | line->count[i] = 0; |
| 271 | line = line->next; |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | static void record_precise_ip(struct sym_entry *syme, int counter, u64 ip) |
| 276 | { |
| 277 | struct source_line *line; |
| 278 | |
| 279 | if (syme != sym_filter_entry) |
| 280 | return; |
| 281 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 282 | if (pthread_mutex_trylock(&syme->src->lock)) |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 283 | return; |
| 284 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 285 | if (syme->src == NULL || syme->src->source == NULL) |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 286 | goto out_unlock; |
| 287 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 288 | for (line = syme->src->lines; line; line = line->next) { |
Kirill Smelkov | ee11b90 | 2010-02-07 11:46:15 -0200 | [diff] [blame] | 289 | /* skip lines without IP info */ |
| 290 | if (line->eip == 0) |
| 291 | continue; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 292 | if (line->eip == ip) { |
| 293 | line->count[counter]++; |
| 294 | break; |
| 295 | } |
| 296 | if (line->eip > ip) |
| 297 | break; |
| 298 | } |
| 299 | out_unlock: |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 300 | pthread_mutex_unlock(&syme->src->lock); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 301 | } |
| 302 | |
Arnaldo Carvalho de Melo | c7ad21a | 2010-02-22 16:14:22 -0300 | [diff] [blame] | 303 | #define PATTERN_LEN (BITS_PER_LONG / 4 + 2) |
| 304 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 305 | static void lookup_sym_source(struct sym_entry *syme) |
| 306 | { |
Arnaldo Carvalho de Melo | 51a472d | 2009-11-17 18:38:00 -0200 | [diff] [blame] | 307 | struct symbol *symbol = sym_entry__symbol(syme); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 308 | struct source_line *line; |
Arnaldo Carvalho de Melo | c7ad21a | 2010-02-22 16:14:22 -0300 | [diff] [blame] | 309 | char pattern[PATTERN_LEN + 1]; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 310 | |
Arnaldo Carvalho de Melo | 5f48536 | 2010-02-07 11:46:16 -0200 | [diff] [blame] | 311 | sprintf(pattern, "%0*Lx <", BITS_PER_LONG / 4, |
| 312 | map__rip_2objdump(syme->map, symbol->start)); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 313 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 314 | pthread_mutex_lock(&syme->src->lock); |
| 315 | for (line = syme->src->lines; line; line = line->next) { |
Arnaldo Carvalho de Melo | c7ad21a | 2010-02-22 16:14:22 -0300 | [diff] [blame] | 316 | if (memcmp(line->line, pattern, PATTERN_LEN) == 0) { |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 317 | syme->src->source = line; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 318 | break; |
| 319 | } |
| 320 | } |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 321 | pthread_mutex_unlock(&syme->src->lock); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 322 | } |
| 323 | |
| 324 | static void show_lines(struct source_line *queue, int count, int total) |
| 325 | { |
| 326 | int i; |
| 327 | struct source_line *line; |
| 328 | |
| 329 | line = queue; |
| 330 | for (i = 0; i < count; i++) { |
| 331 | float pcnt = 100.0*(float)line->count[sym_counter]/(float)total; |
| 332 | |
| 333 | printf("%8li %4.1f%%\t%s\n", line->count[sym_counter], pcnt, line->line); |
| 334 | line = line->next; |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | #define TRACE_COUNT 3 |
| 339 | |
| 340 | static void show_details(struct sym_entry *syme) |
| 341 | { |
| 342 | struct symbol *symbol; |
| 343 | struct source_line *line; |
| 344 | struct source_line *line_queue = NULL; |
| 345 | int displayed = 0; |
| 346 | int line_queue_count = 0, total = 0, more = 0; |
| 347 | |
| 348 | if (!syme) |
| 349 | return; |
| 350 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 351 | if (!syme->src->source) |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 352 | lookup_sym_source(syme); |
| 353 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 354 | if (!syme->src->source) |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 355 | return; |
| 356 | |
Arnaldo Carvalho de Melo | 51a472d | 2009-11-17 18:38:00 -0200 | [diff] [blame] | 357 | symbol = sym_entry__symbol(syme); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 358 | printf("Showing %s for %s\n", event_name(sym_evsel), symbol->name); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 359 | printf(" Events Pcnt (>=%d%%)\n", sym_pcnt_filter); |
| 360 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 361 | pthread_mutex_lock(&syme->src->lock); |
| 362 | line = syme->src->source; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 363 | while (line) { |
| 364 | total += line->count[sym_counter]; |
| 365 | line = line->next; |
| 366 | } |
| 367 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 368 | line = syme->src->source; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 369 | while (line) { |
| 370 | float pcnt = 0.0; |
| 371 | |
| 372 | if (!line_queue_count) |
| 373 | line_queue = line; |
| 374 | line_queue_count++; |
| 375 | |
| 376 | if (line->count[sym_counter]) |
| 377 | pcnt = 100.0 * line->count[sym_counter] / (float)total; |
| 378 | if (pcnt >= (float)sym_pcnt_filter) { |
| 379 | if (displayed <= print_entries) |
| 380 | show_lines(line_queue, line_queue_count, total); |
| 381 | else more++; |
| 382 | displayed += line_queue_count; |
| 383 | line_queue_count = 0; |
| 384 | line_queue = NULL; |
| 385 | } else if (line_queue_count > TRACE_COUNT) { |
| 386 | line_queue = line_queue->next; |
| 387 | line_queue_count--; |
| 388 | } |
| 389 | |
| 390 | line->count[sym_counter] = zero ? 0 : line->count[sym_counter] * 7 / 8; |
| 391 | line = line->next; |
| 392 | } |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 393 | pthread_mutex_unlock(&syme->src->lock); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 394 | if (more) |
| 395 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
| 396 | } |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 397 | |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 398 | /* |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 399 | * Symbols will be added here in event__process_sample and will get out |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 400 | * after decayed. |
| 401 | */ |
| 402 | static LIST_HEAD(active_symbols); |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 403 | static pthread_mutex_t active_symbols_lock = PTHREAD_MUTEX_INITIALIZER; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 404 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 405 | /* |
| 406 | * Ordering weight: count-1 * count-2 * ... / count-n |
| 407 | */ |
| 408 | static double sym_weight(const struct sym_entry *sym) |
| 409 | { |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 410 | double weight = sym->snap_count; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 411 | int counter; |
| 412 | |
Mike Galbraith | 46ab976 | 2009-07-24 10:09:50 +0200 | [diff] [blame] | 413 | if (!display_weighted) |
| 414 | return weight; |
| 415 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 416 | for (counter = 1; counter < nr_counters-1; counter++) |
| 417 | weight *= sym->count[counter]; |
| 418 | |
| 419 | weight /= (sym->count[counter] + 1); |
| 420 | |
| 421 | return weight; |
| 422 | } |
| 423 | |
Ingo Molnar | 2debbc8 | 2009-06-05 14:29:10 +0200 | [diff] [blame] | 424 | static long samples; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 425 | static long kernel_samples, us_samples; |
Peter Zijlstra | 1676b8a | 2010-03-04 14:19:36 +0100 | [diff] [blame] | 426 | static long exact_samples; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 427 | static long guest_us_samples, guest_kernel_samples; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 428 | static const char CONSOLE_CLEAR[] = "[H[2J"; |
| 429 | |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 430 | static void __list_insert_active_sym(struct sym_entry *syme) |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 431 | { |
| 432 | list_add(&syme->node, &active_symbols); |
| 433 | } |
| 434 | |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 435 | static void list_remove_active_sym(struct sym_entry *syme) |
| 436 | { |
| 437 | pthread_mutex_lock(&active_symbols_lock); |
| 438 | list_del_init(&syme->node); |
| 439 | pthread_mutex_unlock(&active_symbols_lock); |
| 440 | } |
| 441 | |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 442 | static void rb_insert_active_sym(struct rb_root *tree, struct sym_entry *se) |
| 443 | { |
| 444 | struct rb_node **p = &tree->rb_node; |
| 445 | struct rb_node *parent = NULL; |
| 446 | struct sym_entry *iter; |
| 447 | |
| 448 | while (*p != NULL) { |
| 449 | parent = *p; |
| 450 | iter = rb_entry(parent, struct sym_entry, rb_node); |
| 451 | |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 452 | if (se->weight > iter->weight) |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 453 | p = &(*p)->rb_left; |
| 454 | else |
| 455 | p = &(*p)->rb_right; |
| 456 | } |
| 457 | |
| 458 | rb_link_node(&se->rb_node, parent, p); |
| 459 | rb_insert_color(&se->rb_node, tree); |
| 460 | } |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 461 | |
| 462 | static void print_sym_table(void) |
| 463 | { |
Ingo Molnar | 233f0b9 | 2009-06-03 21:48:40 +0200 | [diff] [blame] | 464 | int printed = 0, j; |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 465 | struct perf_evsel *counter; |
| 466 | int snap = !display_weighted ? sym_counter : 0; |
Ingo Molnar | 2debbc8 | 2009-06-05 14:29:10 +0200 | [diff] [blame] | 467 | float samples_per_sec = samples/delay_secs; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 468 | float ksamples_per_sec = kernel_samples/delay_secs; |
| 469 | float us_samples_per_sec = (us_samples)/delay_secs; |
| 470 | float guest_kernel_samples_per_sec = (guest_kernel_samples)/delay_secs; |
| 471 | float guest_us_samples_per_sec = (guest_us_samples)/delay_secs; |
Peter Zijlstra | 1676b8a | 2010-03-04 14:19:36 +0100 | [diff] [blame] | 472 | float esamples_percent = (100.0*exact_samples)/samples; |
Ingo Molnar | 2debbc8 | 2009-06-05 14:29:10 +0200 | [diff] [blame] | 473 | float sum_ksamples = 0.0; |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 474 | struct sym_entry *syme, *n; |
| 475 | struct rb_root tmp = RB_ROOT; |
| 476 | struct rb_node *nd; |
Arnaldo Carvalho de Melo | 00909e9 | 2010-03-16 18:28:46 -0300 | [diff] [blame] | 477 | int sym_width = 0, dso_width = 0, dso_short_width = 0; |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 478 | const int win_width = winsize.ws_col - 1; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 479 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 480 | samples = us_samples = kernel_samples = exact_samples = 0; |
| 481 | guest_kernel_samples = guest_us_samples = 0; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 482 | |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 483 | /* Sort the active symbols */ |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 484 | pthread_mutex_lock(&active_symbols_lock); |
| 485 | syme = list_entry(active_symbols.next, struct sym_entry, node); |
| 486 | pthread_mutex_unlock(&active_symbols_lock); |
| 487 | |
| 488 | list_for_each_entry_safe_from(syme, n, &active_symbols, node) { |
Mike Galbraith | 46ab976 | 2009-07-24 10:09:50 +0200 | [diff] [blame] | 489 | syme->snap_count = syme->count[snap]; |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 490 | if (syme->snap_count != 0) { |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 491 | |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 492 | if ((hide_user_symbols && |
| 493 | syme->origin == PERF_RECORD_MISC_USER) || |
| 494 | (hide_kernel_symbols && |
| 495 | syme->origin == PERF_RECORD_MISC_KERNEL)) { |
| 496 | list_remove_active_sym(syme); |
| 497 | continue; |
| 498 | } |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 499 | syme->weight = sym_weight(syme); |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 500 | rb_insert_active_sym(&tmp, syme); |
Ingo Molnar | 2debbc8 | 2009-06-05 14:29:10 +0200 | [diff] [blame] | 501 | sum_ksamples += syme->snap_count; |
Mike Galbraith | d94b943 | 2009-05-25 09:57:56 +0200 | [diff] [blame] | 502 | |
| 503 | for (j = 0; j < nr_counters; j++) |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 504 | syme->count[j] = zero ? 0 : syme->count[j] * 7 / 8; |
| 505 | } else |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 506 | list_remove_active_sym(syme); |
Mike Galbraith | d94b943 | 2009-05-25 09:57:56 +0200 | [diff] [blame] | 507 | } |
| 508 | |
Frederic Weisbecker | 0f5486b | 2009-06-04 20:48:04 +0200 | [diff] [blame] | 509 | puts(CONSOLE_CLEAR); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 510 | |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 511 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 512 | if (!perf_guest) { |
| 513 | printf(" PerfTop:%8.0f irqs/sec kernel:%4.1f%%" |
| 514 | " exact: %4.1f%% [", |
| 515 | samples_per_sec, |
| 516 | 100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) / |
| 517 | samples_per_sec)), |
| 518 | esamples_percent); |
| 519 | } else { |
| 520 | printf(" PerfTop:%8.0f irqs/sec kernel:%4.1f%% us:%4.1f%%" |
| 521 | " guest kernel:%4.1f%% guest us:%4.1f%%" |
| 522 | " exact: %4.1f%% [", |
| 523 | samples_per_sec, |
| 524 | 100.0 - (100.0 * ((samples_per_sec-ksamples_per_sec) / |
| 525 | samples_per_sec)), |
| 526 | 100.0 - (100.0 * ((samples_per_sec-us_samples_per_sec) / |
| 527 | samples_per_sec)), |
| 528 | 100.0 - (100.0 * ((samples_per_sec - |
| 529 | guest_kernel_samples_per_sec) / |
| 530 | samples_per_sec)), |
| 531 | 100.0 - (100.0 * ((samples_per_sec - |
| 532 | guest_us_samples_per_sec) / |
| 533 | samples_per_sec)), |
| 534 | esamples_percent); |
| 535 | } |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 536 | |
Mike Galbraith | 46ab976 | 2009-07-24 10:09:50 +0200 | [diff] [blame] | 537 | if (nr_counters == 1 || !display_weighted) { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 538 | struct perf_evsel *first; |
| 539 | first = list_entry(evsel_list.next, struct perf_evsel, node); |
| 540 | printf("%Ld", first->attr.sample_period); |
Ingo Molnar | cf1f457 | 2009-06-05 13:27:02 +0200 | [diff] [blame] | 541 | if (freq) |
| 542 | printf("Hz "); |
| 543 | else |
| 544 | printf(" "); |
| 545 | } |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 546 | |
Mike Galbraith | 46ab976 | 2009-07-24 10:09:50 +0200 | [diff] [blame] | 547 | if (!display_weighted) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 548 | printf("%s", event_name(sym_evsel)); |
| 549 | else list_for_each_entry(counter, &evsel_list, node) { |
| 550 | if (counter->idx) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 551 | printf("/"); |
| 552 | |
| 553 | printf("%s", event_name(counter)); |
| 554 | } |
| 555 | |
| 556 | printf( "], "); |
| 557 | |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 558 | if (target_pid != -1) |
| 559 | printf(" (target_pid: %d", target_pid); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 560 | else if (target_tid != -1) |
| 561 | printf(" (target_tid: %d", target_tid); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 562 | else |
| 563 | printf(" (all"); |
| 564 | |
Corey Ashford | 01797c5 | 2010-11-08 18:20:45 -0800 | [diff] [blame] | 565 | if (cpu_list) |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 566 | printf(", CPU%s: %s)\n", cpus->nr > 1 ? "s" : "", cpu_list); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 567 | else { |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 568 | if (target_tid != -1) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 569 | printf(")\n"); |
| 570 | else |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 571 | printf(", %d CPU%s)\n", cpus->nr, cpus->nr > 1 ? "s" : ""); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 572 | } |
| 573 | |
Arnaldo Carvalho de Melo | 1a105f7 | 2009-11-17 15:40:55 -0200 | [diff] [blame] | 574 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 575 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 576 | if (sym_filter_entry) { |
| 577 | show_details(sym_filter_entry); |
| 578 | return; |
| 579 | } |
| 580 | |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 581 | /* |
| 582 | * Find the longest symbol name that will be displayed |
| 583 | */ |
| 584 | for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { |
| 585 | syme = rb_entry(nd, struct sym_entry, rb_node); |
| 586 | if (++printed > print_entries || |
| 587 | (int)syme->snap_count < count_filter) |
| 588 | continue; |
| 589 | |
Arnaldo Carvalho de Melo | 1a105f7 | 2009-11-17 15:40:55 -0200 | [diff] [blame] | 590 | if (syme->map->dso->long_name_len > dso_width) |
| 591 | dso_width = syme->map->dso->long_name_len; |
| 592 | |
Arnaldo Carvalho de Melo | b63be8d | 2010-03-15 15:03:50 -0300 | [diff] [blame] | 593 | if (syme->map->dso->short_name_len > dso_short_width) |
| 594 | dso_short_width = syme->map->dso->short_name_len; |
| 595 | |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 596 | if (syme->name_len > sym_width) |
| 597 | sym_width = syme->name_len; |
| 598 | } |
| 599 | |
| 600 | printed = 0; |
| 601 | |
Arnaldo Carvalho de Melo | b63be8d | 2010-03-15 15:03:50 -0300 | [diff] [blame] | 602 | if (sym_width + dso_width > winsize.ws_col - 29) { |
| 603 | dso_width = dso_short_width; |
| 604 | if (sym_width + dso_width > winsize.ws_col - 29) |
| 605 | sym_width = winsize.ws_col - dso_width - 29; |
| 606 | } |
Arnaldo Carvalho de Melo | 7cc017e | 2009-11-24 12:05:14 -0200 | [diff] [blame] | 607 | putchar('\n'); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 608 | if (nr_counters == 1) |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 609 | printf(" samples pcnt"); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 610 | else |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 611 | printf(" weight samples pcnt"); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 612 | |
Arnaldo Carvalho de Melo | 7ced156 | 2009-08-26 11:51:26 -0300 | [diff] [blame] | 613 | if (verbose) |
| 614 | printf(" RIP "); |
Arnaldo Carvalho de Melo | 7cc017e | 2009-11-24 12:05:14 -0200 | [diff] [blame] | 615 | printf(" %-*.*s DSO\n", sym_width, sym_width, "function"); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 616 | printf(" %s _______ _____", |
Arnaldo Carvalho de Melo | 7ced156 | 2009-08-26 11:51:26 -0300 | [diff] [blame] | 617 | nr_counters == 1 ? " " : "______"); |
| 618 | if (verbose) |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 619 | printf(" ________________"); |
Arnaldo Carvalho de Melo | 1a105f7 | 2009-11-17 15:40:55 -0200 | [diff] [blame] | 620 | printf(" %-*.*s", sym_width, sym_width, graph_line); |
Arnaldo Carvalho de Melo | 7cc017e | 2009-11-24 12:05:14 -0200 | [diff] [blame] | 621 | printf(" %-*.*s", dso_width, dso_width, graph_line); |
Arnaldo Carvalho de Melo | 1a105f7 | 2009-11-17 15:40:55 -0200 | [diff] [blame] | 622 | puts("\n"); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 623 | |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 624 | for (nd = rb_first(&tmp); nd; nd = rb_next(nd)) { |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 625 | struct symbol *sym; |
Ingo Molnar | 8fc0321 | 2009-06-04 15:19:47 +0200 | [diff] [blame] | 626 | double pcnt; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 627 | |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 628 | syme = rb_entry(nd, struct sym_entry, rb_node); |
Arnaldo Carvalho de Melo | 51a472d | 2009-11-17 18:38:00 -0200 | [diff] [blame] | 629 | sym = sym_entry__symbol(syme); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 630 | if (++printed > print_entries || (int)syme->snap_count < count_filter) |
Arnaldo Carvalho de Melo | c44613a | 2009-05-29 17:03:07 -0300 | [diff] [blame] | 631 | continue; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 632 | |
Ingo Molnar | 2debbc8 | 2009-06-05 14:29:10 +0200 | [diff] [blame] | 633 | pcnt = 100.0 - (100.0 * ((sum_ksamples - syme->snap_count) / |
| 634 | sum_ksamples)); |
Mike Galbraith | d94b943 | 2009-05-25 09:57:56 +0200 | [diff] [blame] | 635 | |
Mike Galbraith | 46ab976 | 2009-07-24 10:09:50 +0200 | [diff] [blame] | 636 | if (nr_counters == 1 || !display_weighted) |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 637 | printf("%20.2f ", syme->weight); |
Mike Galbraith | d94b943 | 2009-05-25 09:57:56 +0200 | [diff] [blame] | 638 | else |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 639 | printf("%9.1f %10ld ", syme->weight, syme->snap_count); |
Ingo Molnar | 8fc0321 | 2009-06-04 15:19:47 +0200 | [diff] [blame] | 640 | |
Frederic Weisbecker | 1e11fd8 | 2009-07-02 20:14:34 +0200 | [diff] [blame] | 641 | percent_color_fprintf(stdout, "%4.1f%%", pcnt); |
Arnaldo Carvalho de Melo | 7ced156 | 2009-08-26 11:51:26 -0300 | [diff] [blame] | 642 | if (verbose) |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 643 | printf(" %016llx", sym->start); |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 644 | printf(" %-*.*s", sym_width, sym_width, sym->name); |
Arnaldo Carvalho de Melo | 7cc017e | 2009-11-24 12:05:14 -0200 | [diff] [blame] | 645 | printf(" %-*.*s\n", dso_width, dso_width, |
| 646 | dso_width >= syme->map->dso->long_name_len ? |
| 647 | syme->map->dso->long_name : |
| 648 | syme->map->dso->short_name); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 649 | } |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 650 | } |
| 651 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 652 | static void prompt_integer(int *target, const char *msg) |
| 653 | { |
| 654 | char *buf = malloc(0), *p; |
| 655 | size_t dummy = 0; |
| 656 | int tmp; |
| 657 | |
| 658 | fprintf(stdout, "\n%s: ", msg); |
| 659 | if (getline(&buf, &dummy, stdin) < 0) |
| 660 | return; |
| 661 | |
| 662 | p = strchr(buf, '\n'); |
| 663 | if (p) |
| 664 | *p = 0; |
| 665 | |
| 666 | p = buf; |
| 667 | while(*p) { |
| 668 | if (!isdigit(*p)) |
| 669 | goto out_free; |
| 670 | p++; |
| 671 | } |
| 672 | tmp = strtoul(buf, NULL, 10); |
| 673 | *target = tmp; |
| 674 | out_free: |
| 675 | free(buf); |
| 676 | } |
| 677 | |
| 678 | static void prompt_percent(int *target, const char *msg) |
| 679 | { |
| 680 | int tmp = 0; |
| 681 | |
| 682 | prompt_integer(&tmp, msg); |
| 683 | if (tmp >= 0 && tmp <= 100) |
| 684 | *target = tmp; |
| 685 | } |
| 686 | |
| 687 | static void prompt_symbol(struct sym_entry **target, const char *msg) |
| 688 | { |
| 689 | char *buf = malloc(0), *p; |
| 690 | struct sym_entry *syme = *target, *n, *found = NULL; |
| 691 | size_t dummy = 0; |
| 692 | |
| 693 | /* zero counters of active symbol */ |
| 694 | if (syme) { |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 695 | pthread_mutex_lock(&syme->src->lock); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 696 | __zero_source_counters(syme); |
| 697 | *target = NULL; |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 698 | pthread_mutex_unlock(&syme->src->lock); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 699 | } |
| 700 | |
| 701 | fprintf(stdout, "\n%s: ", msg); |
| 702 | if (getline(&buf, &dummy, stdin) < 0) |
| 703 | goto out_free; |
| 704 | |
| 705 | p = strchr(buf, '\n'); |
| 706 | if (p) |
| 707 | *p = 0; |
| 708 | |
| 709 | pthread_mutex_lock(&active_symbols_lock); |
| 710 | syme = list_entry(active_symbols.next, struct sym_entry, node); |
| 711 | pthread_mutex_unlock(&active_symbols_lock); |
| 712 | |
| 713 | list_for_each_entry_safe_from(syme, n, &active_symbols, node) { |
Arnaldo Carvalho de Melo | 51a472d | 2009-11-17 18:38:00 -0200 | [diff] [blame] | 714 | struct symbol *sym = sym_entry__symbol(syme); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 715 | |
| 716 | if (!strcmp(buf, sym->name)) { |
| 717 | found = syme; |
| 718 | break; |
| 719 | } |
| 720 | } |
| 721 | |
| 722 | if (!found) { |
Kirill Smelkov | 66aeb6d | 2010-01-13 13:22:19 -0200 | [diff] [blame] | 723 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 724 | sleep(1); |
| 725 | return; |
| 726 | } else |
| 727 | parse_source(found); |
| 728 | |
| 729 | out_free: |
| 730 | free(buf); |
| 731 | } |
| 732 | |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 733 | static void print_mapped_keys(void) |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 734 | { |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 735 | char *name = NULL; |
| 736 | |
| 737 | if (sym_filter_entry) { |
Arnaldo Carvalho de Melo | 51a472d | 2009-11-17 18:38:00 -0200 | [diff] [blame] | 738 | struct symbol *sym = sym_entry__symbol(sym_filter_entry); |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 739 | name = sym->name; |
| 740 | } |
| 741 | |
| 742 | fprintf(stdout, "\nMapped keys:\n"); |
| 743 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", delay_secs); |
| 744 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", print_entries); |
| 745 | |
| 746 | if (nr_counters > 1) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 747 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(sym_evsel)); |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 748 | |
| 749 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", count_filter); |
| 750 | |
Kirill Smelkov | 6cff0e8 | 2010-02-03 16:52:08 -0200 | [diff] [blame] | 751 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", sym_pcnt_filter); |
| 752 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
| 753 | fprintf(stdout, "\t[S] stop annotation.\n"); |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 754 | |
| 755 | if (nr_counters > 1) |
| 756 | fprintf(stdout, "\t[w] toggle display weighted/count[E]r. \t(%d)\n", display_weighted ? 1 : 0); |
| 757 | |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 758 | fprintf(stdout, |
Kirill Smelkov | 1a72cfa | 2010-02-12 19:20:59 +0300 | [diff] [blame] | 759 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 760 | hide_kernel_symbols ? "yes" : "no"); |
| 761 | fprintf(stdout, |
| 762 | "\t[U] hide user symbols. \t(%s)\n", |
| 763 | hide_user_symbols ? "yes" : "no"); |
Mike Galbraith | 46ab976 | 2009-07-24 10:09:50 +0200 | [diff] [blame] | 764 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", zero ? 1 : 0); |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 765 | fprintf(stdout, "\t[qQ] quit.\n"); |
| 766 | } |
| 767 | |
| 768 | static int key_mapped(int c) |
| 769 | { |
| 770 | switch (c) { |
| 771 | case 'd': |
| 772 | case 'e': |
| 773 | case 'f': |
| 774 | case 'z': |
| 775 | case 'q': |
| 776 | case 'Q': |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 777 | case 'K': |
| 778 | case 'U': |
Kirill Smelkov | 6cff0e8 | 2010-02-03 16:52:08 -0200 | [diff] [blame] | 779 | case 'F': |
| 780 | case 's': |
| 781 | case 'S': |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 782 | return 1; |
| 783 | case 'E': |
| 784 | case 'w': |
| 785 | return nr_counters > 1 ? 1 : 0; |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 786 | default: |
| 787 | break; |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 788 | } |
| 789 | |
| 790 | return 0; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 791 | } |
| 792 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 793 | static void handle_keypress(struct perf_session *session, int c) |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 794 | { |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 795 | if (!key_mapped(c)) { |
| 796 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
| 797 | struct termios tc, save; |
| 798 | |
| 799 | print_mapped_keys(); |
| 800 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
| 801 | fflush(stdout); |
| 802 | |
| 803 | tcgetattr(0, &save); |
| 804 | tc = save; |
| 805 | tc.c_lflag &= ~(ICANON | ECHO); |
| 806 | tc.c_cc[VMIN] = 0; |
| 807 | tc.c_cc[VTIME] = 0; |
| 808 | tcsetattr(0, TCSANOW, &tc); |
| 809 | |
| 810 | poll(&stdin_poll, 1, -1); |
| 811 | c = getc(stdin); |
| 812 | |
| 813 | tcsetattr(0, TCSAFLUSH, &save); |
| 814 | if (!key_mapped(c)) |
| 815 | return; |
| 816 | } |
| 817 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 818 | switch (c) { |
| 819 | case 'd': |
| 820 | prompt_integer(&delay_secs, "Enter display delay"); |
Tim Blechmann | dc79959 | 2009-10-17 18:08:29 +0200 | [diff] [blame] | 821 | if (delay_secs < 1) |
| 822 | delay_secs = 1; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 823 | break; |
| 824 | case 'e': |
| 825 | prompt_integer(&print_entries, "Enter display entries (lines)"); |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 826 | if (print_entries == 0) { |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 827 | sig_winch_handler(SIGWINCH); |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 828 | signal(SIGWINCH, sig_winch_handler); |
| 829 | } else |
| 830 | signal(SIGWINCH, SIG_DFL); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 831 | break; |
| 832 | case 'E': |
| 833 | if (nr_counters > 1) { |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 834 | fprintf(stderr, "\nAvailable events:"); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 835 | |
| 836 | list_for_each_entry(sym_evsel, &evsel_list, node) |
| 837 | fprintf(stderr, "\n\t%d %s", sym_evsel->idx, event_name(sym_evsel)); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 838 | |
| 839 | prompt_integer(&sym_counter, "Enter details event counter"); |
| 840 | |
| 841 | if (sym_counter >= nr_counters) { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 842 | sym_evsel = list_entry(evsel_list.next, struct perf_evsel, node); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 843 | sym_counter = 0; |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 844 | fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(sym_evsel)); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 845 | sleep(1); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 846 | break; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 847 | } |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 848 | list_for_each_entry(sym_evsel, &evsel_list, node) |
| 849 | if (sym_evsel->idx == sym_counter) |
| 850 | break; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 851 | } else sym_counter = 0; |
| 852 | break; |
| 853 | case 'f': |
| 854 | prompt_integer(&count_filter, "Enter display event count filter"); |
| 855 | break; |
| 856 | case 'F': |
| 857 | prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)"); |
| 858 | break; |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 859 | case 'K': |
| 860 | hide_kernel_symbols = !hide_kernel_symbols; |
| 861 | break; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 862 | case 'q': |
| 863 | case 'Q': |
| 864 | printf("exiting.\n"); |
Arnaldo Carvalho de Melo | c338aee | 2009-11-20 20:51:27 -0200 | [diff] [blame] | 865 | if (dump_symtab) |
Arnaldo Carvalho de Melo | cbf6968 | 2010-04-27 21:22:44 -0300 | [diff] [blame] | 866 | perf_session__fprintf_dsos(session, stderr); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 867 | exit(0); |
| 868 | case 's': |
| 869 | prompt_symbol(&sym_filter_entry, "Enter details symbol"); |
| 870 | break; |
| 871 | case 'S': |
| 872 | if (!sym_filter_entry) |
| 873 | break; |
| 874 | else { |
| 875 | struct sym_entry *syme = sym_filter_entry; |
| 876 | |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 877 | pthread_mutex_lock(&syme->src->lock); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 878 | sym_filter_entry = NULL; |
| 879 | __zero_source_counters(syme); |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 880 | pthread_mutex_unlock(&syme->src->lock); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 881 | } |
| 882 | break; |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 883 | case 'U': |
| 884 | hide_user_symbols = !hide_user_symbols; |
| 885 | break; |
Mike Galbraith | 46ab976 | 2009-07-24 10:09:50 +0200 | [diff] [blame] | 886 | case 'w': |
| 887 | display_weighted = ~display_weighted; |
| 888 | break; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 889 | case 'z': |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 890 | zero = !zero; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 891 | break; |
Ingo Molnar | 83a0944 | 2009-08-15 12:26:57 +0200 | [diff] [blame] | 892 | default: |
| 893 | break; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 894 | } |
| 895 | } |
| 896 | |
Ingo Molnar | f37a291 | 2009-07-01 12:37:06 +0200 | [diff] [blame] | 897 | static void *display_thread(void *arg __used) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 898 | { |
Frederic Weisbecker | 0f5486b | 2009-06-04 20:48:04 +0200 | [diff] [blame] | 899 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 900 | struct termios tc, save; |
| 901 | int delay_msecs, c; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 902 | struct perf_session *session = (struct perf_session *) arg; |
Frederic Weisbecker | 0f5486b | 2009-06-04 20:48:04 +0200 | [diff] [blame] | 903 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 904 | tcgetattr(0, &save); |
| 905 | tc = save; |
| 906 | tc.c_lflag &= ~(ICANON | ECHO); |
| 907 | tc.c_cc[VMIN] = 0; |
| 908 | tc.c_cc[VTIME] = 0; |
Mike Galbraith | 091bd2e | 2009-08-04 10:21:23 +0200 | [diff] [blame] | 909 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 910 | repeat: |
| 911 | delay_msecs = delay_secs * 1000; |
| 912 | tcsetattr(0, TCSANOW, &tc); |
| 913 | /* trash return*/ |
| 914 | getc(stdin); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 915 | |
Frederic Weisbecker | 0f5486b | 2009-06-04 20:48:04 +0200 | [diff] [blame] | 916 | do { |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 917 | print_sym_table(); |
Frederic Weisbecker | 0f5486b | 2009-06-04 20:48:04 +0200 | [diff] [blame] | 918 | } while (!poll(&stdin_poll, 1, delay_msecs) == 1); |
| 919 | |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 920 | c = getc(stdin); |
| 921 | tcsetattr(0, TCSAFLUSH, &save); |
| 922 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 923 | handle_keypress(session, c); |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 924 | goto repeat; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 925 | |
| 926 | return NULL; |
| 927 | } |
| 928 | |
Anton Blanchard | 2ab5208 | 2009-07-01 09:00:46 +1000 | [diff] [blame] | 929 | /* Tag samples to be skipped. */ |
Ingo Molnar | f37a291 | 2009-07-01 12:37:06 +0200 | [diff] [blame] | 930 | static const char *skip_symbols[] = { |
Anton Blanchard | 2ab5208 | 2009-07-01 09:00:46 +1000 | [diff] [blame] | 931 | "default_idle", |
| 932 | "cpu_idle", |
| 933 | "enter_idle", |
| 934 | "exit_idle", |
| 935 | "mwait_idle", |
Arnaldo Carvalho de Melo | 59b9005 | 2009-07-26 19:06:19 -0300 | [diff] [blame] | 936 | "mwait_idle_with_hints", |
Arnaldo Carvalho de Melo | 8357275 | 2009-09-25 15:02:39 -0700 | [diff] [blame] | 937 | "poll_idle", |
Anton Blanchard | 3a3393e | 2009-07-01 09:00:47 +1000 | [diff] [blame] | 938 | "ppc64_runlatch_off", |
| 939 | "pseries_dedicated_idle_sleep", |
Anton Blanchard | 2ab5208 | 2009-07-01 09:00:46 +1000 | [diff] [blame] | 940 | NULL |
| 941 | }; |
| 942 | |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 943 | static int symbol_filter(struct map *map, struct symbol *sym) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 944 | { |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 945 | struct sym_entry *syme; |
| 946 | const char *name = sym->name; |
Anton Blanchard | 2ab5208 | 2009-07-01 09:00:46 +1000 | [diff] [blame] | 947 | int i; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 948 | |
Anton Blanchard | 3a3393e | 2009-07-01 09:00:47 +1000 | [diff] [blame] | 949 | /* |
| 950 | * ppc64 uses function descriptors and appends a '.' to the |
| 951 | * start of every instruction address. Remove it. |
| 952 | */ |
| 953 | if (name[0] == '.') |
| 954 | name++; |
| 955 | |
Arnaldo Carvalho de Melo | de04687 | 2009-05-28 14:55:41 -0300 | [diff] [blame] | 956 | if (!strcmp(name, "_text") || |
| 957 | !strcmp(name, "_etext") || |
| 958 | !strcmp(name, "_sinittext") || |
| 959 | !strncmp("init_module", name, 11) || |
| 960 | !strncmp("cleanup_module", name, 14) || |
| 961 | strstr(name, "_text_start") || |
| 962 | strstr(name, "_text_end")) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 963 | return 1; |
| 964 | |
Arnaldo Carvalho de Melo | 00a192b | 2009-10-30 16:28:24 -0200 | [diff] [blame] | 965 | syme = symbol__priv(sym); |
Arnaldo Carvalho de Melo | 439d473 | 2009-10-02 03:29:58 -0300 | [diff] [blame] | 966 | syme->map = map; |
Arnaldo Carvalho de Melo | b269876 | 2009-11-17 18:38:02 -0200 | [diff] [blame] | 967 | syme->src = NULL; |
Kirill Smelkov | 6cff0e8 | 2010-02-03 16:52:08 -0200 | [diff] [blame] | 968 | |
| 969 | if (!sym_filter_entry && sym_filter && !strcmp(name, sym_filter)) { |
| 970 | /* schedule initial sym_filter_entry setup */ |
| 971 | sym_filter_entry_sched = syme; |
| 972 | sym_filter = NULL; |
| 973 | } |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 974 | |
Anton Blanchard | 2ab5208 | 2009-07-01 09:00:46 +1000 | [diff] [blame] | 975 | for (i = 0; skip_symbols[i]; i++) { |
| 976 | if (!strcmp(skip_symbols[i], name)) { |
| 977 | syme->skip = 1; |
| 978 | break; |
| 979 | } |
| 980 | } |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 981 | |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 982 | if (!syme->skip) |
| 983 | syme->name_len = strlen(sym->name); |
| 984 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 985 | return 0; |
| 986 | } |
| 987 | |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 988 | static void event__process_sample(const event_t *self, |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 989 | struct sample_data *sample, |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 990 | struct perf_session *session, |
| 991 | struct perf_evsel *evsel) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 992 | { |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 993 | u64 ip = self->ip.ip; |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 994 | struct sym_entry *syme; |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 995 | struct addr_location al; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 996 | struct machine *machine; |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 997 | u8 origin = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 998 | |
Arnaldo Carvalho de Melo | 24bfef0 | 2010-01-21 13:04:43 -0200 | [diff] [blame] | 999 | ++samples; |
| 1000 | |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 1001 | switch (origin) { |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 1002 | case PERF_RECORD_MISC_USER: |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1003 | ++us_samples; |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 1004 | if (hide_user_symbols) |
| 1005 | return; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 1006 | machine = perf_session__find_host_machine(session); |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 1007 | break; |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1008 | case PERF_RECORD_MISC_KERNEL: |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1009 | ++kernel_samples; |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 1010 | if (hide_kernel_symbols) |
| 1011 | return; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 1012 | machine = perf_session__find_host_machine(session); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1013 | break; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1014 | case PERF_RECORD_MISC_GUEST_KERNEL: |
| 1015 | ++guest_kernel_samples; |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 1016 | machine = perf_session__find_machine(session, self->ip.pid); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1017 | break; |
| 1018 | case PERF_RECORD_MISC_GUEST_USER: |
| 1019 | ++guest_us_samples; |
| 1020 | /* |
| 1021 | * TODO: we don't process guest user from host side |
| 1022 | * except simple counting. |
| 1023 | */ |
| 1024 | return; |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1025 | default: |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1026 | return; |
| 1027 | } |
| 1028 | |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 1029 | if (!machine && perf_guest) { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1030 | pr_err("Can't find guest [%d]'s kernel information\n", |
| 1031 | self->ip.pid); |
| 1032 | return; |
| 1033 | } |
| 1034 | |
Peter Zijlstra | ab60834 | 2010-04-08 23:03:20 +0200 | [diff] [blame] | 1035 | if (self->header.misc & PERF_RECORD_MISC_EXACT_IP) |
Peter Zijlstra | 1676b8a | 2010-03-04 14:19:36 +0100 | [diff] [blame] | 1036 | exact_samples++; |
| 1037 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 1038 | if (event__preprocess_sample(self, session, &al, sample, |
Arnaldo Carvalho de Melo | 41a37e2 | 2010-06-04 08:02:07 -0300 | [diff] [blame] | 1039 | symbol_filter) < 0 || |
Arnaldo Carvalho de Melo | 72b8fa1 | 2010-01-27 21:05:49 -0200 | [diff] [blame] | 1040 | al.filtered) |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 1041 | return; |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1042 | |
Arnaldo Carvalho de Melo | 72b8fa1 | 2010-01-27 21:05:49 -0200 | [diff] [blame] | 1043 | if (al.sym == NULL) { |
| 1044 | /* |
| 1045 | * As we do lazy loading of symtabs we only will know if the |
| 1046 | * specified vmlinux file is invalid when we actually have a |
| 1047 | * hit in kernel space and then try to load it. So if we get |
| 1048 | * here and there are _no_ symbols in the DSO backing the |
| 1049 | * kernel map, bail out. |
| 1050 | * |
| 1051 | * We may never get here, for instance, if we use -K/ |
| 1052 | * --hide-kernel-symbols, even if the user specifies an |
| 1053 | * invalid --vmlinux ;-) |
| 1054 | */ |
Arnaldo Carvalho de Melo | 23346f2 | 2010-04-27 21:17:50 -0300 | [diff] [blame] | 1055 | if (al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
Arnaldo Carvalho de Melo | 72b8fa1 | 2010-01-27 21:05:49 -0200 | [diff] [blame] | 1056 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
| 1057 | pr_err("The %s file can't be used\n", |
| 1058 | symbol_conf.vmlinux_name); |
| 1059 | exit(1); |
| 1060 | } |
| 1061 | |
| 1062 | return; |
| 1063 | } |
| 1064 | |
Kirill Smelkov | 6cff0e8 | 2010-02-03 16:52:08 -0200 | [diff] [blame] | 1065 | /* let's see, whether we need to install initial sym_filter_entry */ |
| 1066 | if (sym_filter_entry_sched) { |
| 1067 | sym_filter_entry = sym_filter_entry_sched; |
| 1068 | sym_filter_entry_sched = NULL; |
Arnaldo Carvalho de Melo | b0a9ab6 | 2010-03-15 11:46:58 -0300 | [diff] [blame] | 1069 | if (parse_source(sym_filter_entry) < 0) { |
| 1070 | struct symbol *sym = sym_entry__symbol(sym_filter_entry); |
| 1071 | |
| 1072 | pr_err("Can't annotate %s", sym->name); |
| 1073 | if (sym_filter_entry->map->dso->origin == DSO__ORIG_KERNEL) { |
| 1074 | pr_err(": No vmlinux file was found in the path:\n"); |
Arnaldo Carvalho de Melo | 5ad90e4 | 2010-05-26 13:26:02 -0300 | [diff] [blame] | 1075 | machine__fprintf_vmlinux_path(machine, stderr); |
Arnaldo Carvalho de Melo | b0a9ab6 | 2010-03-15 11:46:58 -0300 | [diff] [blame] | 1076 | } else |
| 1077 | pr_err(".\n"); |
| 1078 | exit(1); |
| 1079 | } |
Kirill Smelkov | 6cff0e8 | 2010-02-03 16:52:08 -0200 | [diff] [blame] | 1080 | } |
| 1081 | |
Arnaldo Carvalho de Melo | 1ed091c | 2009-11-27 16:29:23 -0200 | [diff] [blame] | 1082 | syme = symbol__priv(al.sym); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1083 | if (!syme->skip) { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1084 | syme->count[evsel->idx]++; |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 1085 | syme->origin = origin; |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1086 | record_precise_ip(syme, evsel->idx, ip); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1087 | pthread_mutex_lock(&active_symbols_lock); |
| 1088 | if (list_empty(&syme->node) || !syme->node.next) |
| 1089 | __list_insert_active_sym(syme); |
| 1090 | pthread_mutex_unlock(&active_symbols_lock); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1091 | } |
| 1092 | } |
| 1093 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1094 | struct mmap_data { |
Ingo Molnar | a21ca2c | 2009-06-06 09:58:57 +0200 | [diff] [blame] | 1095 | void *base; |
Ingo Molnar | f37a291 | 2009-07-01 12:37:06 +0200 | [diff] [blame] | 1096 | int mask; |
Ingo Molnar | a21ca2c | 2009-06-06 09:58:57 +0200 | [diff] [blame] | 1097 | unsigned int prev; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1098 | }; |
| 1099 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1100 | static int perf_evsel__alloc_mmap_per_thread(struct perf_evsel *evsel, |
| 1101 | int ncpus, int nthreads) |
| 1102 | { |
| 1103 | evsel->priv = xyarray__new(ncpus, nthreads, sizeof(struct mmap_data)); |
| 1104 | return evsel->priv != NULL ? 0 : -ENOMEM; |
| 1105 | } |
| 1106 | |
| 1107 | static void perf_evsel__free_mmap(struct perf_evsel *evsel) |
| 1108 | { |
| 1109 | xyarray__delete(evsel->priv); |
| 1110 | evsel->priv = NULL; |
| 1111 | } |
| 1112 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1113 | static unsigned int mmap_read_head(struct mmap_data *md) |
| 1114 | { |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 1115 | struct perf_event_mmap_page *pc = md->base; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1116 | int head; |
| 1117 | |
| 1118 | head = pc->data_head; |
| 1119 | rmb(); |
| 1120 | |
| 1121 | return head; |
| 1122 | } |
| 1123 | |
Arnaldo Carvalho de Melo | d8f6624 | 2009-12-13 19:50:24 -0200 | [diff] [blame] | 1124 | static void perf_session__mmap_read_counter(struct perf_session *self, |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1125 | struct perf_evsel *evsel, |
| 1126 | int cpu, int thread_idx) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1127 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1128 | struct xyarray *mmap_array = evsel->priv; |
| 1129 | struct mmap_data *md = xyarray__entry(mmap_array, cpu, thread_idx); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1130 | unsigned int head = mmap_read_head(md); |
| 1131 | unsigned int old = md->prev; |
| 1132 | unsigned char *data = md->base + page_size; |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 1133 | struct sample_data sample; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1134 | int diff; |
| 1135 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1136 | /* |
| 1137 | * If we're further behind than half the buffer, there's a chance |
Ingo Molnar | 2debbc8 | 2009-06-05 14:29:10 +0200 | [diff] [blame] | 1138 | * the writer will bite our tail and mess up the samples under us. |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1139 | * |
| 1140 | * If we somehow ended up ahead of the head, we got messed up. |
| 1141 | * |
| 1142 | * In either case, truncate and restart at head. |
| 1143 | */ |
| 1144 | diff = head - old; |
| 1145 | if (diff > md->mask / 2 || diff < 0) { |
Mike Galbraith | f4f0b41 | 2009-10-13 14:57:20 +0200 | [diff] [blame] | 1146 | fprintf(stderr, "WARNING: failed to keep up with mmap data.\n"); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1147 | |
| 1148 | /* |
| 1149 | * head points to a known good entry, start there. |
| 1150 | */ |
| 1151 | old = head; |
| 1152 | } |
| 1153 | |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1154 | for (; old != head;) { |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1155 | event_t *event = (event_t *)&data[old & md->mask]; |
| 1156 | |
| 1157 | event_t event_copy; |
| 1158 | |
Ingo Molnar | 6f06ccb | 2009-04-20 15:22:22 +0200 | [diff] [blame] | 1159 | size_t size = event->header.size; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1160 | |
| 1161 | /* |
| 1162 | * Event straddles the mmap boundary -- header should always |
| 1163 | * be inside due to u64 alignment of output. |
| 1164 | */ |
| 1165 | if ((old & md->mask) + size != ((old + size) & md->mask)) { |
| 1166 | unsigned int offset = old; |
| 1167 | unsigned int len = min(sizeof(*event), size), cpy; |
| 1168 | void *dst = &event_copy; |
| 1169 | |
| 1170 | do { |
| 1171 | cpy = min(md->mask + 1 - (offset & md->mask), len); |
| 1172 | memcpy(dst, &data[offset & md->mask], cpy); |
| 1173 | offset += cpy; |
| 1174 | dst += cpy; |
| 1175 | len -= cpy; |
| 1176 | } while (len); |
| 1177 | |
| 1178 | event = &event_copy; |
| 1179 | } |
| 1180 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 1181 | event__parse_sample(event, self, &sample); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1182 | if (event->header.type == PERF_RECORD_SAMPLE) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1183 | event__process_sample(event, &sample, self, evsel); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1184 | else |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 1185 | event__process(event, &sample, self); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1186 | old += size; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1187 | } |
| 1188 | |
| 1189 | md->prev = old; |
| 1190 | } |
| 1191 | |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1192 | static struct pollfd *event_array; |
Mike Galbraith | c2990a2 | 2009-05-24 08:35:49 +0200 | [diff] [blame] | 1193 | |
Arnaldo Carvalho de Melo | d8f6624 | 2009-12-13 19:50:24 -0200 | [diff] [blame] | 1194 | static void perf_session__mmap_read(struct perf_session *self) |
Frederic Weisbecker | 2f01190 | 2009-06-06 23:10:43 +0200 | [diff] [blame] | 1195 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1196 | struct perf_evsel *counter; |
| 1197 | int i, thread_index; |
Frederic Weisbecker | 2f01190 | 2009-06-06 23:10:43 +0200 | [diff] [blame] | 1198 | |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 1199 | for (i = 0; i < cpus->nr; i++) { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1200 | list_for_each_entry(counter, &evsel_list, node) { |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1201 | for (thread_index = 0; |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 1202 | thread_index < threads->nr; |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1203 | thread_index++) { |
| 1204 | perf_session__mmap_read_counter(self, |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1205 | counter, i, thread_index); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1206 | } |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1207 | } |
Frederic Weisbecker | 2f01190 | 2009-06-06 23:10:43 +0200 | [diff] [blame] | 1208 | } |
| 1209 | } |
| 1210 | |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1211 | int nr_poll; |
| 1212 | int group_fd; |
| 1213 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1214 | static void start_counter(int i, struct perf_evsel *evsel) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1215 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1216 | struct xyarray *mmap_array = evsel->priv; |
| 1217 | struct mmap_data *mm; |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 1218 | struct perf_event_attr *attr; |
Corey Ashford | 01797c5 | 2010-11-08 18:20:45 -0800 | [diff] [blame] | 1219 | int cpu = -1; |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1220 | int thread_index; |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1221 | |
Corey Ashford | 01797c5 | 2010-11-08 18:20:45 -0800 | [diff] [blame] | 1222 | if (target_tid == -1) |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 1223 | cpu = cpus->map[i]; |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1224 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1225 | attr = &evsel->attr; |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1226 | |
| 1227 | attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; |
Mike Galbraith | 7e4ff9e | 2009-10-12 07:56:03 +0200 | [diff] [blame] | 1228 | |
| 1229 | if (freq) { |
| 1230 | attr->sample_type |= PERF_SAMPLE_PERIOD; |
| 1231 | attr->freq = 1; |
| 1232 | attr->sample_freq = freq; |
| 1233 | } |
| 1234 | |
Mike Galbraith | 0fdc7e6 | 2009-07-21 10:30:36 +0200 | [diff] [blame] | 1235 | attr->inherit = (cpu < 0) && inherit; |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1236 | attr->mmap = 1; |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1237 | |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 1238 | for (thread_index = 0; thread_index < threads->nr; thread_index++) { |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1239 | try_again: |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1240 | FD(evsel, i, thread_index) = sys_perf_event_open(attr, |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 1241 | threads->map[thread_index], cpu, group_fd, 0); |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1242 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1243 | if (FD(evsel, i, thread_index) < 0) { |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1244 | int err = errno; |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1245 | |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1246 | if (err == EPERM || err == EACCES) |
Corey Ashford | d9cf837 | 2010-11-19 17:37:24 -0800 | [diff] [blame] | 1247 | die("Permission error - are you root?\n" |
| 1248 | "\t Consider tweaking" |
| 1249 | " /proc/sys/kernel/perf_event_paranoid.\n"); |
Arnaldo Carvalho de Melo | aa7bc7e | 2011-01-10 13:36:24 -0200 | [diff] [blame] | 1250 | if (err == ENOENT) |
| 1251 | die("%s event is not supported. ", event_name(evsel)); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1252 | /* |
| 1253 | * If it's cycles then fall back to hrtimer |
| 1254 | * based cpu-clock-tick sw counter, which |
| 1255 | * is always available even if no PMU support: |
| 1256 | */ |
| 1257 | if (attr->type == PERF_TYPE_HARDWARE |
| 1258 | && attr->config == PERF_COUNT_HW_CPU_CYCLES) { |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1259 | |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1260 | if (verbose) |
| 1261 | warning(" ... trying to fall back to cpu-clock-ticks\n"); |
Ingo Molnar | 3da297a | 2009-06-07 17:39:02 +0200 | [diff] [blame] | 1262 | |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1263 | attr->type = PERF_TYPE_SOFTWARE; |
| 1264 | attr->config = PERF_COUNT_SW_CPU_CLOCK; |
| 1265 | goto try_again; |
| 1266 | } |
| 1267 | printf("\n"); |
Corey Ashford | d9cf837 | 2010-11-19 17:37:24 -0800 | [diff] [blame] | 1268 | error("sys_perf_event_open() syscall returned with %d (%s). /bin/dmesg may provide additional information.\n", |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1269 | FD(evsel, i, thread_index), strerror(err)); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1270 | die("No CONFIG_PERF_EVENTS=y kernel support configured?\n"); |
| 1271 | exit(-1); |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1272 | } |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1273 | assert(FD(evsel, i, thread_index) >= 0); |
| 1274 | fcntl(FD(evsel, i, thread_index), F_SETFL, O_NONBLOCK); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1275 | |
| 1276 | /* |
| 1277 | * First counter acts as the group leader: |
| 1278 | */ |
| 1279 | if (group && group_fd == -1) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1280 | group_fd = FD(evsel, i, thread_index); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1281 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1282 | event_array[nr_poll].fd = FD(evsel, i, thread_index); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1283 | event_array[nr_poll].events = POLLIN; |
| 1284 | nr_poll++; |
| 1285 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1286 | mm = xyarray__entry(mmap_array, i, thread_index); |
| 1287 | mm->prev = 0; |
| 1288 | mm->mask = mmap_pages*page_size - 1; |
| 1289 | mm->base = mmap(NULL, (mmap_pages+1)*page_size, |
| 1290 | PROT_READ, MAP_SHARED, FD(evsel, i, thread_index), 0); |
| 1291 | if (mm->base == MAP_FAILED) |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1292 | die("failed to mmap with %d (%s)\n", errno, strerror(errno)); |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1293 | } |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1294 | } |
| 1295 | |
| 1296 | static int __cmd_top(void) |
| 1297 | { |
| 1298 | pthread_t thread; |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1299 | struct perf_evsel *counter; |
| 1300 | int i, ret; |
Arnaldo Carvalho de Melo | d8f6624 | 2009-12-13 19:50:24 -0200 | [diff] [blame] | 1301 | /* |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1302 | * FIXME: perf_session__new should allow passing a O_MMAP, so that all this |
| 1303 | * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. |
Arnaldo Carvalho de Melo | d8f6624 | 2009-12-13 19:50:24 -0200 | [diff] [blame] | 1304 | */ |
Ian Munsie | 21ef97f | 2010-12-10 14:09:16 +1100 | [diff] [blame] | 1305 | struct perf_session *session = perf_session__new(NULL, O_WRONLY, false, false, NULL); |
Arnaldo Carvalho de Melo | b3165f4 | 2009-12-13 19:50:28 -0200 | [diff] [blame] | 1306 | if (session == NULL) |
| 1307 | return -ENOMEM; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1308 | |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1309 | if (target_tid != -1) |
| 1310 | event__synthesize_thread(target_tid, event__process, session); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1311 | else |
Arnaldo Carvalho de Melo | d8f6624 | 2009-12-13 19:50:24 -0200 | [diff] [blame] | 1312 | event__synthesize_threads(event__process, session); |
Arnaldo Carvalho de Melo | 5b2bb75 | 2009-10-26 19:23:19 -0200 | [diff] [blame] | 1313 | |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 1314 | for (i = 0; i < cpus->nr; i++) { |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1315 | group_fd = -1; |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1316 | list_for_each_entry(counter, &evsel_list, node) |
Ingo Molnar | 716c69f | 2009-06-07 17:31:52 +0200 | [diff] [blame] | 1317 | start_counter(i, counter); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1318 | } |
| 1319 | |
Frederic Weisbecker | 2f01190 | 2009-06-06 23:10:43 +0200 | [diff] [blame] | 1320 | /* Wait for a minimal set of events before starting the snapshot */ |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1321 | poll(&event_array[0], nr_poll, 100); |
Frederic Weisbecker | 2f01190 | 2009-06-06 23:10:43 +0200 | [diff] [blame] | 1322 | |
Arnaldo Carvalho de Melo | d8f6624 | 2009-12-13 19:50:24 -0200 | [diff] [blame] | 1323 | perf_session__mmap_read(session); |
Frederic Weisbecker | 2f01190 | 2009-06-06 23:10:43 +0200 | [diff] [blame] | 1324 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1325 | if (pthread_create(&thread, NULL, display_thread, session)) { |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1326 | printf("Could not create display thread.\n"); |
| 1327 | exit(-1); |
| 1328 | } |
| 1329 | |
| 1330 | if (realtime_prio) { |
| 1331 | struct sched_param param; |
| 1332 | |
| 1333 | param.sched_priority = realtime_prio; |
| 1334 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
| 1335 | printf("Could not set realtime priority.\n"); |
| 1336 | exit(-1); |
| 1337 | } |
| 1338 | } |
| 1339 | |
| 1340 | while (1) { |
Ingo Molnar | 2debbc8 | 2009-06-05 14:29:10 +0200 | [diff] [blame] | 1341 | int hits = samples; |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1342 | |
Arnaldo Carvalho de Melo | d8f6624 | 2009-12-13 19:50:24 -0200 | [diff] [blame] | 1343 | perf_session__mmap_read(session); |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1344 | |
Ingo Molnar | 2debbc8 | 2009-06-05 14:29:10 +0200 | [diff] [blame] | 1345 | if (hits == samples) |
Ingo Molnar | 0780060 | 2009-04-20 15:00:56 +0200 | [diff] [blame] | 1346 | ret = poll(event_array, nr_poll, 100); |
| 1347 | } |
| 1348 | |
| 1349 | return 0; |
| 1350 | } |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1351 | |
| 1352 | static const char * const top_usage[] = { |
| 1353 | "perf top [<options>]", |
| 1354 | NULL |
| 1355 | }; |
| 1356 | |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1357 | static const struct option options[] = { |
| 1358 | OPT_CALLBACK('e', "event", NULL, "event", |
Thomas Gleixner | 86847b6 | 2009-06-06 12:24:17 +0200 | [diff] [blame] | 1359 | "event selector. use 'perf list' to list available events", |
| 1360 | parse_events), |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1361 | OPT_INTEGER('c', "count", &default_interval, |
| 1362 | "event period to sample"), |
| 1363 | OPT_INTEGER('p', "pid", &target_pid, |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1364 | "profile events on existing process id"), |
| 1365 | OPT_INTEGER('t', "tid", &target_tid, |
| 1366 | "profile events on existing thread id"), |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1367 | OPT_BOOLEAN('a', "all-cpus", &system_wide, |
| 1368 | "system-wide collection from all CPUs"), |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 1369 | OPT_STRING('C', "cpu", &cpu_list, "cpu", |
| 1370 | "list of cpus to monitor"), |
Arnaldo Carvalho de Melo | b32d133 | 2009-11-24 12:05:15 -0200 | [diff] [blame] | 1371 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
| 1372 | "file", "vmlinux pathname"), |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 1373 | OPT_BOOLEAN('K', "hide_kernel_symbols", &hide_kernel_symbols, |
| 1374 | "hide kernel symbols"), |
Arnaldo Carvalho de Melo | 1967936 | 2010-05-17 15:39:16 -0300 | [diff] [blame] | 1375 | OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"), |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1376 | OPT_INTEGER('r', "realtime", &realtime_prio, |
| 1377 | "collect data with this RT SCHED_FIFO priority"), |
Mike Galbraith | db20c00 | 2009-05-26 15:25:34 +0200 | [diff] [blame] | 1378 | OPT_INTEGER('d', "delay", &delay_secs, |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1379 | "number of seconds to delay between refreshes"), |
| 1380 | OPT_BOOLEAN('D', "dump-symtab", &dump_symtab, |
| 1381 | "dump the symbol table used for profiling"), |
Ingo Molnar | 6e53cdf | 2009-06-04 08:53:05 +0200 | [diff] [blame] | 1382 | OPT_INTEGER('f', "count-filter", &count_filter, |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1383 | "only display functions with more events than this"), |
| 1384 | OPT_BOOLEAN('g', "group", &group, |
| 1385 | "put the counters into a counter group"), |
Mike Galbraith | 0fdc7e6 | 2009-07-21 10:30:36 +0200 | [diff] [blame] | 1386 | OPT_BOOLEAN('i', "inherit", &inherit, |
| 1387 | "child tasks inherit counters"), |
Mike Galbraith | 923c42c | 2009-07-22 20:36:03 +0200 | [diff] [blame] | 1388 | OPT_STRING('s', "sym-annotate", &sym_filter, "symbol name", |
Kirill Smelkov | 6cff0e8 | 2010-02-03 16:52:08 -0200 | [diff] [blame] | 1389 | "symbol to annotate"), |
Anton Blanchard | 1f208ea | 2009-07-01 09:00:44 +1000 | [diff] [blame] | 1390 | OPT_BOOLEAN('z', "zero", &zero, |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1391 | "zero history across updates"), |
Ingo Molnar | 6e53cdf | 2009-06-04 08:53:05 +0200 | [diff] [blame] | 1392 | OPT_INTEGER('F', "freq", &freq, |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1393 | "profile at this frequency"), |
Ingo Molnar | 6e53cdf | 2009-06-04 08:53:05 +0200 | [diff] [blame] | 1394 | OPT_INTEGER('E', "entries", &print_entries, |
| 1395 | "display this many functions"), |
Arnaldo Carvalho de Melo | 8ffcda1 | 2009-11-16 21:45:24 -0200 | [diff] [blame] | 1396 | OPT_BOOLEAN('U', "hide_user_symbols", &hide_user_symbols, |
| 1397 | "hide user symbols"), |
Ian Munsie | c055564 | 2010-04-13 18:37:33 +1000 | [diff] [blame] | 1398 | OPT_INCR('v', "verbose", &verbose, |
Ingo Molnar | 3da297a | 2009-06-07 17:39:02 +0200 | [diff] [blame] | 1399 | "be more verbose (show counter open errors, etc)"), |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1400 | OPT_END() |
| 1401 | }; |
| 1402 | |
Ingo Molnar | f37a291 | 2009-07-01 12:37:06 +0200 | [diff] [blame] | 1403 | int cmd_top(int argc, const char **argv, const char *prefix __used) |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1404 | { |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1405 | struct perf_evsel *pos; |
| 1406 | int status = -ENOMEM; |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1407 | |
| 1408 | page_size = sysconf(_SC_PAGE_SIZE); |
| 1409 | |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1410 | argc = parse_options(argc, argv, options, top_usage, 0); |
| 1411 | if (argc) |
| 1412 | usage_with_options(top_usage, options); |
| 1413 | |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 1414 | if (target_pid != -1) |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1415 | target_tid = target_pid; |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1416 | |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 1417 | threads = thread_map__new(target_pid, target_tid); |
| 1418 | if (threads == NULL) { |
| 1419 | pr_err("Problems finding threads of monitor\n"); |
| 1420 | usage_with_options(top_usage, options); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1421 | } |
| 1422 | |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 1423 | event_array = malloc((sizeof(struct pollfd) * |
| 1424 | MAX_NR_CPUS * MAX_COUNTERS * threads->nr)); |
Zhang, Yanmin | d6d901c | 2010-03-18 11:36:05 -0300 | [diff] [blame] | 1425 | if (!event_array) |
| 1426 | return -ENOMEM; |
| 1427 | |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1428 | /* CPU and PID are mutually exclusive */ |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 1429 | if (target_tid > 0 && cpu_list) { |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1430 | printf("WARNING: PID switch overriding CPU\n"); |
| 1431 | sleep(1); |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 1432 | cpu_list = NULL; |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1433 | } |
| 1434 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1435 | if (!nr_counters && perf_evsel_list__create_default() < 0) { |
| 1436 | pr_err("Not enough memory for event selector list\n"); |
| 1437 | return -ENOMEM; |
| 1438 | } |
Arnaldo Carvalho de Melo | 5a8e5a3 | 2009-11-17 18:38:01 -0200 | [diff] [blame] | 1439 | |
Frederic Weisbecker | 2f335a0 | 2009-06-05 19:31:01 +0200 | [diff] [blame] | 1440 | if (delay_secs < 1) |
| 1441 | delay_secs = 1; |
| 1442 | |
Mike Galbraith | 7e4ff9e | 2009-10-12 07:56:03 +0200 | [diff] [blame] | 1443 | /* |
| 1444 | * User specified count overrides default frequency. |
| 1445 | */ |
| 1446 | if (default_interval) |
| 1447 | freq = 0; |
| 1448 | else if (freq) { |
| 1449 | default_interval = freq; |
| 1450 | } else { |
| 1451 | fprintf(stderr, "frequency and count are zero, aborting\n"); |
| 1452 | exit(EXIT_FAILURE); |
| 1453 | } |
| 1454 | |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 1455 | if (target_tid != -1) |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 1456 | cpus = cpu_map__dummy_new(); |
Paul Mackerras | a12b51c | 2010-03-10 20:36:09 +1100 | [diff] [blame] | 1457 | else |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 1458 | cpus = cpu_map__new(cpu_list); |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 1459 | |
Arnaldo Carvalho de Melo | 60d567e | 2011-01-03 17:49:48 -0200 | [diff] [blame] | 1460 | if (cpus == NULL) |
Stephane Eranian | c45c6ea | 2010-05-28 12:00:01 +0200 | [diff] [blame] | 1461 | usage_with_options(top_usage, options); |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1462 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1463 | list_for_each_entry(pos, &evsel_list, node) { |
Arnaldo Carvalho de Melo | 5c98d466 | 2011-01-03 17:53:33 -0200 | [diff] [blame] | 1464 | if (perf_evsel__alloc_mmap_per_thread(pos, cpus->nr, threads->nr) < 0 || |
| 1465 | perf_evsel__alloc_fd(pos, cpus->nr, threads->nr) < 0) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1466 | goto out_free_fd; |
| 1467 | /* |
| 1468 | * Fill in the ones not specifically initialized via -c: |
| 1469 | */ |
| 1470 | if (pos->attr.sample_period) |
| 1471 | continue; |
| 1472 | |
| 1473 | pos->attr.sample_period = default_interval; |
| 1474 | } |
| 1475 | |
| 1476 | symbol_conf.priv_size = (sizeof(struct sym_entry) + |
| 1477 | (nr_counters + 1) * sizeof(unsigned long)); |
| 1478 | |
| 1479 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); |
| 1480 | if (symbol__init() < 0) |
| 1481 | return -1; |
| 1482 | |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 1483 | get_term_dimensions(&winsize); |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 1484 | if (print_entries == 0) { |
Arnaldo Carvalho de Melo | 13cc507 | 2009-11-17 15:40:54 -0200 | [diff] [blame] | 1485 | update_print_entries(&winsize); |
Arnaldo Carvalho de Melo | 3b6ed98 | 2009-11-16 19:30:27 -0200 | [diff] [blame] | 1486 | signal(SIGWINCH, sig_winch_handler); |
| 1487 | } |
| 1488 | |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1489 | status = __cmd_top(); |
| 1490 | out_free_fd: |
Arnaldo Carvalho de Melo | 70d544d | 2011-01-03 16:51:39 -0200 | [diff] [blame] | 1491 | list_for_each_entry(pos, &evsel_list, node) |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1492 | perf_evsel__free_mmap(pos); |
Arnaldo Carvalho de Melo | bd3bfe9 | 2011-01-11 12:42:00 -0200 | [diff] [blame^] | 1493 | perf_evsel_list__delete(); |
Arnaldo Carvalho de Melo | 69aad6f | 2011-01-03 16:39:04 -0200 | [diff] [blame] | 1494 | |
| 1495 | return status; |
Ingo Molnar | b456bae | 2009-05-26 09:17:18 +0200 | [diff] [blame] | 1496 | } |