Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 1 | #include <linux/kernel.h> |
Robert Richter | 4e31902 | 2013-06-11 17:29:18 +0200 | [diff] [blame] | 2 | #include <traceevent/event-parse.h> |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 3 | |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 4 | #include <byteswap.h> |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 5 | #include <unistd.h> |
| 6 | #include <sys/types.h> |
Arnaldo Carvalho de Melo | a41794c | 2010-05-18 18:29:23 -0300 | [diff] [blame] | 7 | #include <sys/mman.h> |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 8 | |
Arnaldo Carvalho de Melo | e248de3 | 2011-03-05 21:40:06 -0300 | [diff] [blame] | 9 | #include "evlist.h" |
| 10 | #include "evsel.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 11 | #include "session.h" |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 12 | #include "tool.h" |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 13 | #include "sort.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 14 | #include "util.h" |
Anton Blanchard | 5d67be9 | 2011-07-04 21:57:50 +1000 | [diff] [blame] | 15 | #include "cpumap.h" |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 16 | #include "perf_regs.h" |
Jiri Olsa | 7dbf4dc | 2012-09-10 18:50:19 +0200 | [diff] [blame] | 17 | #include "vdso.h" |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 18 | |
| 19 | static int perf_session__open(struct perf_session *self, bool force) |
| 20 | { |
| 21 | struct stat input_stat; |
| 22 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 23 | if (!strcmp(self->filename, "-")) { |
| 24 | self->fd_pipe = true; |
| 25 | self->fd = STDIN_FILENO; |
| 26 | |
Jiri Olsa | d433956 | 2013-07-17 19:49:41 +0200 | [diff] [blame] | 27 | if (perf_session__read_header(self) < 0) |
Stephane Eranian | 69996df | 2012-02-09 23:21:06 +0100 | [diff] [blame] | 28 | pr_err("incompatible file format (rerun with -v to learn more)"); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 29 | |
| 30 | return 0; |
| 31 | } |
| 32 | |
Xiao Guangrong | f887f30 | 2010-02-04 16:46:42 +0800 | [diff] [blame] | 33 | self->fd = open(self->filename, O_RDONLY); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 34 | if (self->fd < 0) { |
Andy Isaacson | 0f2c3de | 2010-06-11 20:36:15 -0700 | [diff] [blame] | 35 | int err = errno; |
| 36 | |
| 37 | pr_err("failed to open %s: %s", self->filename, strerror(err)); |
| 38 | if (err == ENOENT && !strcmp(self->filename, "perf.data")) |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 39 | pr_err(" (try 'perf record' first)"); |
| 40 | pr_err("\n"); |
| 41 | return -errno; |
| 42 | } |
| 43 | |
| 44 | if (fstat(self->fd, &input_stat) < 0) |
| 45 | goto out_close; |
| 46 | |
| 47 | if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) { |
| 48 | pr_err("file %s not owned by current user or root\n", |
| 49 | self->filename); |
| 50 | goto out_close; |
| 51 | } |
| 52 | |
| 53 | if (!input_stat.st_size) { |
| 54 | pr_info("zero-sized file (%s), nothing to do!\n", |
| 55 | self->filename); |
| 56 | goto out_close; |
| 57 | } |
| 58 | |
Jiri Olsa | d433956 | 2013-07-17 19:49:41 +0200 | [diff] [blame] | 59 | if (perf_session__read_header(self) < 0) { |
Stephane Eranian | 69996df | 2012-02-09 23:21:06 +0100 | [diff] [blame] | 60 | pr_err("incompatible file format (rerun with -v to learn more)"); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 61 | goto out_close; |
| 62 | } |
| 63 | |
Arnaldo Carvalho de Melo | c2a7065 | 2011-06-02 11:04:54 -0300 | [diff] [blame] | 64 | if (!perf_evlist__valid_sample_type(self->evlist)) { |
| 65 | pr_err("non matching sample_type"); |
| 66 | goto out_close; |
| 67 | } |
| 68 | |
| 69 | if (!perf_evlist__valid_sample_id_all(self->evlist)) { |
| 70 | pr_err("non matching sample_id_all"); |
| 71 | goto out_close; |
| 72 | } |
| 73 | |
Jiri Olsa | 9ede473 | 2012-10-10 17:38:13 +0200 | [diff] [blame] | 74 | if (!perf_evlist__valid_read_format(self->evlist)) { |
| 75 | pr_err("non matching read_format"); |
| 76 | goto out_close; |
| 77 | } |
| 78 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 79 | self->size = input_stat.st_size; |
| 80 | return 0; |
| 81 | |
| 82 | out_close: |
| 83 | close(self->fd); |
| 84 | self->fd = -1; |
| 85 | return -1; |
| 86 | } |
| 87 | |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 88 | void perf_session__set_id_hdr_size(struct perf_session *session) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 89 | { |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 90 | u16 id_hdr_size = perf_evlist__id_hdr_size(session->evlist); |
| 91 | |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 92 | machines__set_id_hdr_size(&session->machines, id_hdr_size); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 93 | } |
| 94 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 95 | int perf_session__create_kernel_maps(struct perf_session *self) |
| 96 | { |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 97 | int ret = machine__create_kernel_maps(&self->machines.host); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 98 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 99 | if (ret >= 0) |
Arnaldo Carvalho de Melo | d118f8b | 2010-05-10 12:51:05 -0300 | [diff] [blame] | 100 | ret = machines__create_guest_kernel_maps(&self->machines); |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 101 | return ret; |
| 102 | } |
| 103 | |
Arnaldo Carvalho de Melo | 076c6e45 | 2010-08-02 18:18:28 -0300 | [diff] [blame] | 104 | static void perf_session__destroy_kernel_maps(struct perf_session *self) |
| 105 | { |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 106 | machines__destroy_kernel_maps(&self->machines); |
Arnaldo Carvalho de Melo | 076c6e45 | 2010-08-02 18:18:28 -0300 | [diff] [blame] | 107 | } |
| 108 | |
Ian Munsie | 21ef97f | 2010-12-10 14:09:16 +1100 | [diff] [blame] | 109 | struct perf_session *perf_session__new(const char *filename, int mode, |
| 110 | bool force, bool repipe, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 111 | struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 112 | { |
Robert Richter | efad141 | 2011-12-07 10:02:54 +0100 | [diff] [blame] | 113 | struct perf_session *self; |
| 114 | struct stat st; |
| 115 | size_t len; |
| 116 | |
| 117 | if (!filename || !strlen(filename)) { |
| 118 | if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode)) |
| 119 | filename = "-"; |
| 120 | else |
| 121 | filename = "perf.data"; |
| 122 | } |
| 123 | |
| 124 | len = strlen(filename); |
| 125 | self = zalloc(sizeof(*self) + len); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 126 | |
| 127 | if (self == NULL) |
| 128 | goto out; |
| 129 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 130 | memcpy(self->filename, filename, len); |
Tom Zanussi | 454c407 | 2010-05-01 01:41:20 -0500 | [diff] [blame] | 131 | self->repipe = repipe; |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 132 | INIT_LIST_HEAD(&self->ordered_samples.samples); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 133 | INIT_LIST_HEAD(&self->ordered_samples.sample_cache); |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 134 | INIT_LIST_HEAD(&self->ordered_samples.to_free); |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 135 | machines__init(&self->machines); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 136 | |
Arnaldo Carvalho de Melo | 64abebf7 | 2010-01-27 21:05:52 -0200 | [diff] [blame] | 137 | if (mode == O_RDONLY) { |
| 138 | if (perf_session__open(self, force) < 0) |
| 139 | goto out_delete; |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 140 | perf_session__set_id_hdr_size(self); |
Arnaldo Carvalho de Melo | 64abebf7 | 2010-01-27 21:05:52 -0200 | [diff] [blame] | 141 | } else if (mode == O_WRONLY) { |
| 142 | /* |
| 143 | * In O_RDONLY mode this will be performed when reading the |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 144 | * kernel MMAP event, in perf_event__process_mmap(). |
Arnaldo Carvalho de Melo | 64abebf7 | 2010-01-27 21:05:52 -0200 | [diff] [blame] | 145 | */ |
| 146 | if (perf_session__create_kernel_maps(self) < 0) |
| 147 | goto out_delete; |
| 148 | } |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 149 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 150 | if (tool && tool->ordering_requires_timestamps && |
Arnaldo Carvalho de Melo | 5e56247 | 2012-08-01 19:25:26 -0300 | [diff] [blame] | 151 | tool->ordered_samples && !perf_evlist__sample_id_all(self->evlist)) { |
Ian Munsie | 21ef97f | 2010-12-10 14:09:16 +1100 | [diff] [blame] | 152 | dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n"); |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 153 | tool->ordered_samples = false; |
Ian Munsie | 21ef97f | 2010-12-10 14:09:16 +1100 | [diff] [blame] | 154 | } |
| 155 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 156 | out: |
| 157 | return self; |
Arnaldo Carvalho de Melo | 4aa6563 | 2009-12-13 19:50:29 -0200 | [diff] [blame] | 158 | out_delete: |
| 159 | perf_session__delete(self); |
| 160 | return NULL; |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 161 | } |
| 162 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 163 | static void perf_session__delete_dead_threads(struct perf_session *session) |
| 164 | { |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 165 | machine__delete_dead_threads(&session->machines.host); |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 166 | } |
| 167 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 168 | static void perf_session__delete_threads(struct perf_session *session) |
| 169 | { |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 170 | machine__delete_threads(&session->machines.host); |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 171 | } |
| 172 | |
Namhyung Kim | 03cd209 | 2012-11-21 13:43:19 +0900 | [diff] [blame] | 173 | static void perf_session_env__delete(struct perf_session_env *env) |
| 174 | { |
| 175 | free(env->hostname); |
| 176 | free(env->os_release); |
| 177 | free(env->version); |
| 178 | free(env->arch); |
| 179 | free(env->cpu_desc); |
| 180 | free(env->cpuid); |
| 181 | |
| 182 | free(env->cmdline); |
| 183 | free(env->sibling_cores); |
| 184 | free(env->sibling_threads); |
| 185 | free(env->numa_nodes); |
| 186 | free(env->pmu_mappings); |
| 187 | } |
| 188 | |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 189 | void perf_session__delete(struct perf_session *self) |
| 190 | { |
Arnaldo Carvalho de Melo | 076c6e45 | 2010-08-02 18:18:28 -0300 | [diff] [blame] | 191 | perf_session__destroy_kernel_maps(self); |
Arnaldo Carvalho de Melo | d65a458 | 2010-07-30 18:31:28 -0300 | [diff] [blame] | 192 | perf_session__delete_dead_threads(self); |
| 193 | perf_session__delete_threads(self); |
Namhyung Kim | 03cd209 | 2012-11-21 13:43:19 +0900 | [diff] [blame] | 194 | perf_session_env__delete(&self->header.env); |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 195 | machines__exit(&self->machines); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 196 | close(self->fd); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 197 | free(self); |
Jiri Olsa | 7dbf4dc | 2012-09-10 18:50:19 +0200 | [diff] [blame] | 198 | vdso__exit(); |
Arnaldo Carvalho de Melo | 94c744b | 2009-12-11 21:24:02 -0200 | [diff] [blame] | 199 | } |
Arnaldo Carvalho de Melo | a328626 | 2009-12-14 14:22:59 -0200 | [diff] [blame] | 200 | |
Adrian Hunter | 47c3d10 | 2013-07-04 16:20:21 +0300 | [diff] [blame] | 201 | static int process_event_synth_tracing_data_stub(struct perf_tool *tool |
| 202 | __maybe_unused, |
| 203 | union perf_event *event |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 204 | __maybe_unused, |
| 205 | struct perf_session *session |
| 206 | __maybe_unused) |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 207 | { |
| 208 | dump_printf(": unhandled!\n"); |
| 209 | return 0; |
| 210 | } |
| 211 | |
Adrian Hunter | 47c3d10 | 2013-07-04 16:20:21 +0300 | [diff] [blame] | 212 | static int process_event_synth_attr_stub(struct perf_tool *tool __maybe_unused, |
| 213 | union perf_event *event __maybe_unused, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 214 | struct perf_evlist **pevlist |
| 215 | __maybe_unused) |
Arnaldo Carvalho de Melo | 10d0f08 | 2011-11-11 22:45:41 -0200 | [diff] [blame] | 216 | { |
| 217 | dump_printf(": unhandled!\n"); |
| 218 | return 0; |
| 219 | } |
| 220 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 221 | static int process_event_sample_stub(struct perf_tool *tool __maybe_unused, |
| 222 | union perf_event *event __maybe_unused, |
| 223 | struct perf_sample *sample __maybe_unused, |
| 224 | struct perf_evsel *evsel __maybe_unused, |
| 225 | struct machine *machine __maybe_unused) |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 226 | { |
| 227 | dump_printf(": unhandled!\n"); |
| 228 | return 0; |
| 229 | } |
| 230 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 231 | static int process_event_stub(struct perf_tool *tool __maybe_unused, |
| 232 | union perf_event *event __maybe_unused, |
| 233 | struct perf_sample *sample __maybe_unused, |
| 234 | struct machine *machine __maybe_unused) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 235 | { |
| 236 | dump_printf(": unhandled!\n"); |
| 237 | return 0; |
| 238 | } |
| 239 | |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 240 | static int process_finished_round_stub(struct perf_tool *tool __maybe_unused, |
| 241 | union perf_event *event __maybe_unused, |
| 242 | struct perf_session *perf_session |
| 243 | __maybe_unused) |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 244 | { |
| 245 | dump_printf(": unhandled!\n"); |
| 246 | return 0; |
| 247 | } |
| 248 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 249 | static int process_finished_round(struct perf_tool *tool, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 250 | union perf_event *event, |
| 251 | struct perf_session *session); |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 252 | |
David Ahern | 9c50140 | 2013-08-02 14:05:41 -0600 | [diff] [blame] | 253 | void perf_tool__fill_defaults(struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 254 | { |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 255 | if (tool->sample == NULL) |
| 256 | tool->sample = process_event_sample_stub; |
| 257 | if (tool->mmap == NULL) |
| 258 | tool->mmap = process_event_stub; |
| 259 | if (tool->comm == NULL) |
| 260 | tool->comm = process_event_stub; |
| 261 | if (tool->fork == NULL) |
| 262 | tool->fork = process_event_stub; |
| 263 | if (tool->exit == NULL) |
| 264 | tool->exit = process_event_stub; |
| 265 | if (tool->lost == NULL) |
| 266 | tool->lost = perf_event__process_lost; |
| 267 | if (tool->read == NULL) |
| 268 | tool->read = process_event_sample_stub; |
| 269 | if (tool->throttle == NULL) |
| 270 | tool->throttle = process_event_stub; |
| 271 | if (tool->unthrottle == NULL) |
| 272 | tool->unthrottle = process_event_stub; |
| 273 | if (tool->attr == NULL) |
| 274 | tool->attr = process_event_synth_attr_stub; |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 275 | if (tool->tracing_data == NULL) |
| 276 | tool->tracing_data = process_event_synth_tracing_data_stub; |
| 277 | if (tool->build_id == NULL) |
| 278 | tool->build_id = process_finished_round_stub; |
| 279 | if (tool->finished_round == NULL) { |
| 280 | if (tool->ordered_samples) |
| 281 | tool->finished_round = process_finished_round; |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 282 | else |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 283 | tool->finished_round = process_finished_round_stub; |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 284 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 285 | } |
David Ahern | 80c0120 | 2012-06-08 11:47:51 -0300 | [diff] [blame] | 286 | |
| 287 | void mem_bswap_32(void *src, int byte_size) |
| 288 | { |
| 289 | u32 *m = src; |
| 290 | while (byte_size > 0) { |
| 291 | *m = bswap_32(*m); |
| 292 | byte_size -= sizeof(u32); |
| 293 | ++m; |
| 294 | } |
| 295 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 296 | |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 297 | void mem_bswap_64(void *src, int byte_size) |
| 298 | { |
| 299 | u64 *m = src; |
| 300 | |
| 301 | while (byte_size > 0) { |
| 302 | *m = bswap_64(*m); |
| 303 | byte_size -= sizeof(u64); |
| 304 | ++m; |
| 305 | } |
| 306 | } |
| 307 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 308 | static void swap_sample_id_all(union perf_event *event, void *data) |
| 309 | { |
| 310 | void *end = (void *) event + event->header.size; |
| 311 | int size = end - data; |
| 312 | |
| 313 | BUG_ON(size % sizeof(u64)); |
| 314 | mem_bswap_64(data, size); |
| 315 | } |
| 316 | |
| 317 | static void perf_event__all64_swap(union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 318 | bool sample_id_all __maybe_unused) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 319 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 320 | struct perf_event_header *hdr = &event->header; |
| 321 | mem_bswap_64(hdr + 1, event->header.size - sizeof(*hdr)); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 322 | } |
| 323 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 324 | static void perf_event__comm_swap(union perf_event *event, bool sample_id_all) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 325 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 326 | event->comm.pid = bswap_32(event->comm.pid); |
| 327 | event->comm.tid = bswap_32(event->comm.tid); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 328 | |
| 329 | if (sample_id_all) { |
| 330 | void *data = &event->comm.comm; |
| 331 | |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 332 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 333 | swap_sample_id_all(event, data); |
| 334 | } |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 335 | } |
| 336 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 337 | static void perf_event__mmap_swap(union perf_event *event, |
| 338 | bool sample_id_all) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 339 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 340 | event->mmap.pid = bswap_32(event->mmap.pid); |
| 341 | event->mmap.tid = bswap_32(event->mmap.tid); |
| 342 | event->mmap.start = bswap_64(event->mmap.start); |
| 343 | event->mmap.len = bswap_64(event->mmap.len); |
| 344 | event->mmap.pgoff = bswap_64(event->mmap.pgoff); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 345 | |
| 346 | if (sample_id_all) { |
| 347 | void *data = &event->mmap.filename; |
| 348 | |
Irina Tirdea | 9ac3e48 | 2012-09-11 01:15:01 +0300 | [diff] [blame] | 349 | data += PERF_ALIGN(strlen(data) + 1, sizeof(u64)); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 350 | swap_sample_id_all(event, data); |
| 351 | } |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 352 | } |
| 353 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 354 | static void perf_event__task_swap(union perf_event *event, bool sample_id_all) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 355 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 356 | event->fork.pid = bswap_32(event->fork.pid); |
| 357 | event->fork.tid = bswap_32(event->fork.tid); |
| 358 | event->fork.ppid = bswap_32(event->fork.ppid); |
| 359 | event->fork.ptid = bswap_32(event->fork.ptid); |
| 360 | event->fork.time = bswap_64(event->fork.time); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 361 | |
| 362 | if (sample_id_all) |
| 363 | swap_sample_id_all(event, &event->fork + 1); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 364 | } |
| 365 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 366 | static void perf_event__read_swap(union perf_event *event, bool sample_id_all) |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 367 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 368 | event->read.pid = bswap_32(event->read.pid); |
| 369 | event->read.tid = bswap_32(event->read.tid); |
| 370 | event->read.value = bswap_64(event->read.value); |
| 371 | event->read.time_enabled = bswap_64(event->read.time_enabled); |
| 372 | event->read.time_running = bswap_64(event->read.time_running); |
| 373 | event->read.id = bswap_64(event->read.id); |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 374 | |
| 375 | if (sample_id_all) |
| 376 | swap_sample_id_all(event, &event->read + 1); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 377 | } |
| 378 | |
Jiri Olsa | e108c66 | 2012-05-16 08:59:03 +0200 | [diff] [blame] | 379 | static u8 revbyte(u8 b) |
| 380 | { |
| 381 | int rev = (b >> 4) | ((b & 0xf) << 4); |
| 382 | rev = ((rev & 0xcc) >> 2) | ((rev & 0x33) << 2); |
| 383 | rev = ((rev & 0xaa) >> 1) | ((rev & 0x55) << 1); |
| 384 | return (u8) rev; |
| 385 | } |
| 386 | |
| 387 | /* |
| 388 | * XXX this is hack in attempt to carry flags bitfield |
| 389 | * throught endian village. ABI says: |
| 390 | * |
| 391 | * Bit-fields are allocated from right to left (least to most significant) |
| 392 | * on little-endian implementations and from left to right (most to least |
| 393 | * significant) on big-endian implementations. |
| 394 | * |
| 395 | * The above seems to be byte specific, so we need to reverse each |
| 396 | * byte of the bitfield. 'Internet' also says this might be implementation |
| 397 | * specific and we probably need proper fix and carry perf_event_attr |
| 398 | * bitfield flags in separate data file FEAT_ section. Thought this seems |
| 399 | * to work for now. |
| 400 | */ |
| 401 | static void swap_bitfield(u8 *p, unsigned len) |
| 402 | { |
| 403 | unsigned i; |
| 404 | |
| 405 | for (i = 0; i < len; i++) { |
| 406 | *p = revbyte(*p); |
| 407 | p++; |
| 408 | } |
| 409 | } |
| 410 | |
David Ahern | eda3913 | 2011-07-15 12:34:09 -0600 | [diff] [blame] | 411 | /* exported for swapping attributes in file header */ |
| 412 | void perf_event__attr_swap(struct perf_event_attr *attr) |
| 413 | { |
| 414 | attr->type = bswap_32(attr->type); |
| 415 | attr->size = bswap_32(attr->size); |
| 416 | attr->config = bswap_64(attr->config); |
| 417 | attr->sample_period = bswap_64(attr->sample_period); |
| 418 | attr->sample_type = bswap_64(attr->sample_type); |
| 419 | attr->read_format = bswap_64(attr->read_format); |
| 420 | attr->wakeup_events = bswap_32(attr->wakeup_events); |
| 421 | attr->bp_type = bswap_32(attr->bp_type); |
| 422 | attr->bp_addr = bswap_64(attr->bp_addr); |
| 423 | attr->bp_len = bswap_64(attr->bp_len); |
Jiri Olsa | e108c66 | 2012-05-16 08:59:03 +0200 | [diff] [blame] | 424 | |
| 425 | swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64)); |
David Ahern | eda3913 | 2011-07-15 12:34:09 -0600 | [diff] [blame] | 426 | } |
| 427 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 428 | static void perf_event__hdr_attr_swap(union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 429 | bool sample_id_all __maybe_unused) |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 430 | { |
| 431 | size_t size; |
| 432 | |
David Ahern | eda3913 | 2011-07-15 12:34:09 -0600 | [diff] [blame] | 433 | perf_event__attr_swap(&event->attr.attr); |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 434 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 435 | size = event->header.size; |
| 436 | size -= (void *)&event->attr.id - (void *)event; |
| 437 | mem_bswap_64(event->attr.id, size); |
Tom Zanussi | 2c46dbb | 2010-04-01 23:59:19 -0500 | [diff] [blame] | 438 | } |
| 439 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 440 | static void perf_event__event_type_swap(union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 441 | bool sample_id_all __maybe_unused) |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 442 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 443 | event->event_type.event_type.event_id = |
| 444 | bswap_64(event->event_type.event_type.event_id); |
Tom Zanussi | cd19a03 | 2010-04-01 23:59:20 -0500 | [diff] [blame] | 445 | } |
| 446 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 447 | static void perf_event__tracing_data_swap(union perf_event *event, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 448 | bool sample_id_all __maybe_unused) |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 449 | { |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 450 | event->tracing_data.size = bswap_32(event->tracing_data.size); |
Tom Zanussi | 9215545 | 2010-04-01 23:59:21 -0500 | [diff] [blame] | 451 | } |
| 452 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 453 | typedef void (*perf_event__swap_op)(union perf_event *event, |
| 454 | bool sample_id_all); |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 455 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 456 | static perf_event__swap_op perf_event__swap_ops[] = { |
| 457 | [PERF_RECORD_MMAP] = perf_event__mmap_swap, |
| 458 | [PERF_RECORD_COMM] = perf_event__comm_swap, |
| 459 | [PERF_RECORD_FORK] = perf_event__task_swap, |
| 460 | [PERF_RECORD_EXIT] = perf_event__task_swap, |
| 461 | [PERF_RECORD_LOST] = perf_event__all64_swap, |
| 462 | [PERF_RECORD_READ] = perf_event__read_swap, |
| 463 | [PERF_RECORD_SAMPLE] = perf_event__all64_swap, |
David Ahern | eda3913 | 2011-07-15 12:34:09 -0600 | [diff] [blame] | 464 | [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 465 | [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, |
| 466 | [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, |
| 467 | [PERF_RECORD_HEADER_BUILD_ID] = NULL, |
| 468 | [PERF_RECORD_HEADER_MAX] = NULL, |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 469 | }; |
| 470 | |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 471 | struct sample_queue { |
| 472 | u64 timestamp; |
Thomas Gleixner | e4c2df1 | 2010-12-07 12:48:50 +0000 | [diff] [blame] | 473 | u64 file_offset; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 474 | union perf_event *event; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 475 | struct list_head list; |
| 476 | }; |
| 477 | |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 478 | static void perf_session_free_sample_buffers(struct perf_session *session) |
| 479 | { |
| 480 | struct ordered_samples *os = &session->ordered_samples; |
| 481 | |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 482 | while (!list_empty(&os->to_free)) { |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 483 | struct sample_queue *sq; |
| 484 | |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 485 | sq = list_entry(os->to_free.next, struct sample_queue, list); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 486 | list_del(&sq->list); |
| 487 | free(sq); |
| 488 | } |
| 489 | } |
| 490 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 491 | static int perf_session_deliver_event(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 492 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 493 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 494 | struct perf_tool *tool, |
Thomas Gleixner | f74725d | 2010-12-07 12:48:53 +0000 | [diff] [blame] | 495 | u64 file_offset); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 496 | |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 497 | static int flush_sample_queue(struct perf_session *s, |
David Ahern | 9c50140 | 2013-08-02 14:05:41 -0600 | [diff] [blame] | 498 | struct perf_tool *tool) |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 499 | { |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 500 | struct ordered_samples *os = &s->ordered_samples; |
| 501 | struct list_head *head = &os->samples; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 502 | struct sample_queue *tmp, *iter; |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 503 | struct perf_sample sample; |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 504 | u64 limit = os->next_flush; |
| 505 | u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL; |
Arnaldo Carvalho de Melo | 8866056 | 2011-10-29 12:41:45 -0200 | [diff] [blame] | 506 | unsigned idx = 0, progress_next = os->nr_samples / 16; |
Frederic Weisbecker | 5538bec | 2011-05-22 02:17:22 +0200 | [diff] [blame] | 507 | int ret; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 508 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 509 | if (!tool->ordered_samples || !limit) |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 510 | return 0; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 511 | |
| 512 | list_for_each_entry_safe(iter, tmp, head, list) { |
| 513 | if (iter->timestamp > limit) |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 514 | break; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 515 | |
Arnaldo Carvalho de Melo | 0807d2d | 2012-09-26 12:48:18 -0300 | [diff] [blame] | 516 | ret = perf_evlist__parse_sample(s->evlist, iter->event, &sample); |
Frederic Weisbecker | 5538bec | 2011-05-22 02:17:22 +0200 | [diff] [blame] | 517 | if (ret) |
| 518 | pr_err("Can't parse sample, err = %d\n", ret); |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 519 | else { |
| 520 | ret = perf_session_deliver_event(s, iter->event, &sample, tool, |
| 521 | iter->file_offset); |
| 522 | if (ret) |
| 523 | return ret; |
| 524 | } |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 525 | |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 526 | os->last_flush = iter->timestamp; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 527 | list_del(&iter->list); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 528 | list_add(&iter->list, &os->sample_cache); |
Arnaldo Carvalho de Melo | 8866056 | 2011-10-29 12:41:45 -0200 | [diff] [blame] | 529 | if (++idx >= progress_next) { |
| 530 | progress_next += os->nr_samples / 16; |
| 531 | ui_progress__update(idx, os->nr_samples, |
| 532 | "Processing time ordered events..."); |
| 533 | } |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 534 | } |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 535 | |
| 536 | if (list_empty(head)) { |
| 537 | os->last_sample = NULL; |
| 538 | } else if (last_ts <= limit) { |
| 539 | os->last_sample = |
| 540 | list_entry(head->prev, struct sample_queue, list); |
| 541 | } |
Arnaldo Carvalho de Melo | 8866056 | 2011-10-29 12:41:45 -0200 | [diff] [blame] | 542 | |
| 543 | os->nr_samples = 0; |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 544 | |
| 545 | return 0; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 546 | } |
| 547 | |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 548 | /* |
| 549 | * When perf record finishes a pass on every buffers, it records this pseudo |
| 550 | * event. |
| 551 | * We record the max timestamp t found in the pass n. |
| 552 | * Assuming these timestamps are monotonic across cpus, we know that if |
| 553 | * a buffer still has events with timestamps below t, they will be all |
| 554 | * available and then read in the pass n + 1. |
| 555 | * Hence when we start to read the pass n + 2, we can safely flush every |
| 556 | * events with timestamps below t. |
| 557 | * |
| 558 | * ============ PASS n ================= |
| 559 | * CPU 0 | CPU 1 |
| 560 | * | |
| 561 | * cnt1 timestamps | cnt2 timestamps |
| 562 | * 1 | 2 |
| 563 | * 2 | 3 |
| 564 | * - | 4 <--- max recorded |
| 565 | * |
| 566 | * ============ PASS n + 1 ============== |
| 567 | * CPU 0 | CPU 1 |
| 568 | * | |
| 569 | * cnt1 timestamps | cnt2 timestamps |
| 570 | * 3 | 5 |
| 571 | * 4 | 6 |
| 572 | * 5 | 7 <---- max recorded |
| 573 | * |
| 574 | * Flush every events below timestamp 4 |
| 575 | * |
| 576 | * ============ PASS n + 2 ============== |
| 577 | * CPU 0 | CPU 1 |
| 578 | * | |
| 579 | * cnt1 timestamps | cnt2 timestamps |
| 580 | * 6 | 8 |
| 581 | * 7 | 9 |
| 582 | * - | 10 |
| 583 | * |
| 584 | * Flush every events below timestamp 7 |
| 585 | * etc... |
| 586 | */ |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 587 | static int process_finished_round(struct perf_tool *tool, |
Irina Tirdea | 1d037ca | 2012-09-11 01:15:03 +0300 | [diff] [blame] | 588 | union perf_event *event __maybe_unused, |
Arnaldo Carvalho de Melo | d20deb6 | 2011-11-25 08:19:45 -0200 | [diff] [blame] | 589 | struct perf_session *session) |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 590 | { |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 591 | int ret = flush_sample_queue(session, tool); |
| 592 | if (!ret) |
| 593 | session->ordered_samples.next_flush = session->ordered_samples.max_timestamp; |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 594 | |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 595 | return ret; |
Frederic Weisbecker | d6b17be | 2010-05-03 15:14:33 +0200 | [diff] [blame] | 596 | } |
| 597 | |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 598 | /* The queue is ordered by time */ |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 599 | static void __queue_event(struct sample_queue *new, struct perf_session *s) |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 600 | { |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 601 | struct ordered_samples *os = &s->ordered_samples; |
| 602 | struct sample_queue *sample = os->last_sample; |
| 603 | u64 timestamp = new->timestamp; |
| 604 | struct list_head *p; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 605 | |
Arnaldo Carvalho de Melo | 8866056 | 2011-10-29 12:41:45 -0200 | [diff] [blame] | 606 | ++os->nr_samples; |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 607 | os->last_sample = new; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 608 | |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 609 | if (!sample) { |
| 610 | list_add(&new->list, &os->samples); |
| 611 | os->max_timestamp = timestamp; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 612 | return; |
| 613 | } |
| 614 | |
| 615 | /* |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 616 | * last_sample might point to some random place in the list as it's |
| 617 | * the last queued event. We expect that the new event is close to |
| 618 | * this. |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 619 | */ |
Thomas Gleixner | a1225de | 2010-11-30 17:49:33 +0000 | [diff] [blame] | 620 | if (sample->timestamp <= timestamp) { |
| 621 | while (sample->timestamp <= timestamp) { |
| 622 | p = sample->list.next; |
| 623 | if (p == &os->samples) { |
| 624 | list_add_tail(&new->list, &os->samples); |
| 625 | os->max_timestamp = timestamp; |
| 626 | return; |
| 627 | } |
| 628 | sample = list_entry(p, struct sample_queue, list); |
| 629 | } |
| 630 | list_add_tail(&new->list, &sample->list); |
| 631 | } else { |
| 632 | while (sample->timestamp > timestamp) { |
| 633 | p = sample->list.prev; |
| 634 | if (p == &os->samples) { |
| 635 | list_add(&new->list, &os->samples); |
| 636 | return; |
| 637 | } |
| 638 | sample = list_entry(p, struct sample_queue, list); |
| 639 | } |
| 640 | list_add(&new->list, &sample->list); |
| 641 | } |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 642 | } |
| 643 | |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 644 | #define MAX_SAMPLE_BUFFER (64 * 1024 / sizeof(struct sample_queue)) |
| 645 | |
David Ahern | e30b88a | 2013-08-05 21:41:33 -0400 | [diff] [blame] | 646 | int perf_session_queue_event(struct perf_session *s, union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 647 | struct perf_sample *sample, u64 file_offset) |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 648 | { |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 649 | struct ordered_samples *os = &s->ordered_samples; |
| 650 | struct list_head *sc = &os->sample_cache; |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 651 | u64 timestamp = sample->time; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 652 | struct sample_queue *new; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 653 | |
Thomas Gleixner | 79a14c1 | 2010-12-07 12:48:44 +0000 | [diff] [blame] | 654 | if (!timestamp || timestamp == ~0ULL) |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 655 | return -ETIME; |
| 656 | |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 657 | if (timestamp < s->ordered_samples.last_flush) { |
| 658 | printf("Warning: Timestamp below last timeslice flush\n"); |
| 659 | return -EINVAL; |
| 660 | } |
| 661 | |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 662 | if (!list_empty(sc)) { |
| 663 | new = list_entry(sc->next, struct sample_queue, list); |
| 664 | list_del(&new->list); |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 665 | } else if (os->sample_buffer) { |
| 666 | new = os->sample_buffer + os->sample_buffer_idx; |
| 667 | if (++os->sample_buffer_idx == MAX_SAMPLE_BUFFER) |
| 668 | os->sample_buffer = NULL; |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 669 | } else { |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 670 | os->sample_buffer = malloc(MAX_SAMPLE_BUFFER * sizeof(*new)); |
| 671 | if (!os->sample_buffer) |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 672 | return -ENOMEM; |
Thomas Gleixner | 5c891f3 | 2010-11-30 17:49:55 +0000 | [diff] [blame] | 673 | list_add(&os->sample_buffer->list, &os->to_free); |
| 674 | os->sample_buffer_idx = 2; |
| 675 | new = os->sample_buffer + 1; |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 676 | } |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 677 | |
| 678 | new->timestamp = timestamp; |
Thomas Gleixner | e4c2df1 | 2010-12-07 12:48:50 +0000 | [diff] [blame] | 679 | new->file_offset = file_offset; |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 680 | new->event = event; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 681 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 682 | __queue_event(new, s); |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 683 | |
| 684 | return 0; |
| 685 | } |
| 686 | |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 687 | static void callchain__printf(struct perf_sample *sample) |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 688 | { |
| 689 | unsigned int i; |
| 690 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 691 | printf("... chain: nr:%" PRIu64 "\n", sample->callchain->nr); |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 692 | |
| 693 | for (i = 0; i < sample->callchain->nr; i++) |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 694 | printf("..... %2d: %016" PRIx64 "\n", |
| 695 | i, sample->callchain->ips[i]); |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 696 | } |
| 697 | |
Roberto Agostino Vitillo | b538752 | 2012-02-09 23:21:01 +0100 | [diff] [blame] | 698 | static void branch_stack__printf(struct perf_sample *sample) |
| 699 | { |
| 700 | uint64_t i; |
| 701 | |
| 702 | printf("... branch stack: nr:%" PRIu64 "\n", sample->branch_stack->nr); |
| 703 | |
| 704 | for (i = 0; i < sample->branch_stack->nr; i++) |
| 705 | printf("..... %2"PRIu64": %016" PRIx64 " -> %016" PRIx64 "\n", |
| 706 | i, sample->branch_stack->entries[i].from, |
| 707 | sample->branch_stack->entries[i].to); |
| 708 | } |
| 709 | |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 710 | static void regs_dump__printf(u64 mask, u64 *regs) |
| 711 | { |
| 712 | unsigned rid, i = 0; |
| 713 | |
| 714 | for_each_set_bit(rid, (unsigned long *) &mask, sizeof(mask) * 8) { |
| 715 | u64 val = regs[i++]; |
| 716 | |
| 717 | printf(".... %-5s 0x%" PRIx64 "\n", |
| 718 | perf_reg_name(rid), val); |
| 719 | } |
| 720 | } |
| 721 | |
| 722 | static void regs_user__printf(struct perf_sample *sample, u64 mask) |
| 723 | { |
| 724 | struct regs_dump *user_regs = &sample->user_regs; |
| 725 | |
| 726 | if (user_regs->regs) { |
| 727 | printf("... user regs: mask 0x%" PRIx64 "\n", mask); |
| 728 | regs_dump__printf(mask, user_regs->regs); |
| 729 | } |
| 730 | } |
| 731 | |
| 732 | static void stack_user__printf(struct stack_dump *dump) |
| 733 | { |
| 734 | printf("... ustack: size %" PRIu64 ", offset 0x%x\n", |
| 735 | dump->size, dump->offset); |
| 736 | } |
| 737 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 738 | static void perf_session__print_tstamp(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 739 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 740 | struct perf_sample *sample) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 741 | { |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 742 | u64 sample_type = perf_evlist__sample_type(session->evlist); |
| 743 | |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 744 | if (event->header.type != PERF_RECORD_SAMPLE && |
Arnaldo Carvalho de Melo | 5e56247 | 2012-08-01 19:25:26 -0300 | [diff] [blame] | 745 | !perf_evlist__sample_id_all(session->evlist)) { |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 746 | fputs("-1 -1 ", stdout); |
| 747 | return; |
| 748 | } |
| 749 | |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 750 | if ((sample_type & PERF_SAMPLE_CPU)) |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 751 | printf("%u ", sample->cpu); |
| 752 | |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 753 | if (sample_type & PERF_SAMPLE_TIME) |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 754 | printf("%" PRIu64 " ", sample->time); |
Arnaldo Carvalho de Melo | 9c90a61 | 2010-12-02 10:25:28 -0200 | [diff] [blame] | 755 | } |
| 756 | |
Jiri Olsa | 9ede473 | 2012-10-10 17:38:13 +0200 | [diff] [blame] | 757 | static void sample_read__printf(struct perf_sample *sample, u64 read_format) |
| 758 | { |
| 759 | printf("... sample_read:\n"); |
| 760 | |
| 761 | if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED) |
| 762 | printf("...... time enabled %016" PRIx64 "\n", |
| 763 | sample->read.time_enabled); |
| 764 | |
| 765 | if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING) |
| 766 | printf("...... time running %016" PRIx64 "\n", |
| 767 | sample->read.time_running); |
| 768 | |
| 769 | if (read_format & PERF_FORMAT_GROUP) { |
| 770 | u64 i; |
| 771 | |
| 772 | printf(".... group nr %" PRIu64 "\n", sample->read.group.nr); |
| 773 | |
| 774 | for (i = 0; i < sample->read.group.nr; i++) { |
| 775 | struct sample_read_value *value; |
| 776 | |
| 777 | value = &sample->read.group.values[i]; |
| 778 | printf("..... id %016" PRIx64 |
| 779 | ", value %016" PRIx64 "\n", |
| 780 | value->id, value->value); |
| 781 | } |
| 782 | } else |
| 783 | printf("..... id %016" PRIx64 ", value %016" PRIx64 "\n", |
| 784 | sample->read.one.id, sample->read.one.value); |
| 785 | } |
| 786 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 787 | static void dump_event(struct perf_session *session, union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 788 | u64 file_offset, struct perf_sample *sample) |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 789 | { |
| 790 | if (!dump_trace) |
| 791 | return; |
| 792 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 793 | printf("\n%#" PRIx64 " [%#x]: event: %d\n", |
| 794 | file_offset, event->header.size, event->header.type); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 795 | |
| 796 | trace_event(event); |
| 797 | |
| 798 | if (sample) |
| 799 | perf_session__print_tstamp(session, event, sample); |
| 800 | |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 801 | printf("%#" PRIx64 " [%#x]: PERF_RECORD_%s", file_offset, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 802 | event->header.size, perf_event__name(event->header.type)); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 803 | } |
| 804 | |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 805 | static void dump_sample(struct perf_evsel *evsel, union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 806 | struct perf_sample *sample) |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 807 | { |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 808 | u64 sample_type; |
| 809 | |
Arnaldo Carvalho de Melo | ddbc24b | 2010-12-09 12:20:20 -0200 | [diff] [blame] | 810 | if (!dump_trace) |
| 811 | return; |
| 812 | |
David Ahern | 7cec092 | 2011-05-30 13:08:23 -0600 | [diff] [blame] | 813 | printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n", |
Arnaldo Carvalho de Melo | 9486aa3 | 2011-01-22 20:37:02 -0200 | [diff] [blame] | 814 | event->header.misc, sample->pid, sample->tid, sample->ip, |
David Ahern | 7cec092 | 2011-05-30 13:08:23 -0600 | [diff] [blame] | 815 | sample->period, sample->addr); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 816 | |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 817 | sample_type = evsel->attr.sample_type; |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 818 | |
| 819 | if (sample_type & PERF_SAMPLE_CALLCHAIN) |
Arnaldo Carvalho de Melo | ddbc24b | 2010-12-09 12:20:20 -0200 | [diff] [blame] | 820 | callchain__printf(sample); |
Roberto Agostino Vitillo | b538752 | 2012-02-09 23:21:01 +0100 | [diff] [blame] | 821 | |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 822 | if (sample_type & PERF_SAMPLE_BRANCH_STACK) |
Roberto Agostino Vitillo | b538752 | 2012-02-09 23:21:01 +0100 | [diff] [blame] | 823 | branch_stack__printf(sample); |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 824 | |
| 825 | if (sample_type & PERF_SAMPLE_REGS_USER) |
| 826 | regs_user__printf(sample, evsel->attr.sample_regs_user); |
| 827 | |
| 828 | if (sample_type & PERF_SAMPLE_STACK_USER) |
| 829 | stack_user__printf(&sample->user_stack); |
Andi Kleen | 0548429 | 2013-01-24 16:10:29 +0100 | [diff] [blame] | 830 | |
| 831 | if (sample_type & PERF_SAMPLE_WEIGHT) |
| 832 | printf("... weight: %" PRIu64 "\n", sample->weight); |
Stephane Eranian | 98a3b32 | 2013-01-24 16:10:35 +0100 | [diff] [blame] | 833 | |
| 834 | if (sample_type & PERF_SAMPLE_DATA_SRC) |
| 835 | printf(" . data_src: 0x%"PRIx64"\n", sample->data_src); |
Jiri Olsa | 9ede473 | 2012-10-10 17:38:13 +0200 | [diff] [blame] | 836 | |
| 837 | if (sample_type & PERF_SAMPLE_READ) |
| 838 | sample_read__printf(sample, evsel->attr.read_format); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 839 | } |
| 840 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 841 | static struct machine * |
| 842 | perf_session__find_machine_for_cpumode(struct perf_session *session, |
| 843 | union perf_event *event) |
| 844 | { |
| 845 | const u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
| 846 | |
David Ahern | 7c0f4a4 | 2012-07-20 17:25:48 -0600 | [diff] [blame] | 847 | if (perf_guest && |
| 848 | ((cpumode == PERF_RECORD_MISC_GUEST_KERNEL) || |
| 849 | (cpumode == PERF_RECORD_MISC_GUEST_USER))) { |
Nikunj A. Dadhania | 7fb0a5e | 2012-04-09 13:52:23 +0530 | [diff] [blame] | 850 | u32 pid; |
| 851 | |
| 852 | if (event->header.type == PERF_RECORD_MMAP) |
| 853 | pid = event->mmap.pid; |
| 854 | else |
| 855 | pid = event->ip.pid; |
| 856 | |
David Ahern | 207b579 | 2012-07-01 16:11:37 -0600 | [diff] [blame] | 857 | return perf_session__findnew_machine(session, pid); |
Nikunj A. Dadhania | 7fb0a5e | 2012-04-09 13:52:23 +0530 | [diff] [blame] | 858 | } |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 859 | |
Arnaldo Carvalho de Melo | 34ba512 | 2012-12-19 09:04:24 -0300 | [diff] [blame] | 860 | return &session->machines.host; |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 861 | } |
| 862 | |
Jiri Olsa | e4caec0 | 2012-10-10 18:52:24 +0200 | [diff] [blame] | 863 | static int deliver_sample_value(struct perf_session *session, |
| 864 | struct perf_tool *tool, |
| 865 | union perf_event *event, |
| 866 | struct perf_sample *sample, |
| 867 | struct sample_read_value *v, |
| 868 | struct machine *machine) |
| 869 | { |
| 870 | struct perf_sample_id *sid; |
| 871 | |
| 872 | sid = perf_evlist__id2sid(session->evlist, v->id); |
| 873 | if (sid) { |
| 874 | sample->id = v->id; |
| 875 | sample->period = v->value - sid->period; |
| 876 | sid->period = v->value; |
| 877 | } |
| 878 | |
| 879 | if (!sid || sid->evsel == NULL) { |
| 880 | ++session->stats.nr_unknown_id; |
| 881 | return 0; |
| 882 | } |
| 883 | |
| 884 | return tool->sample(tool, event, sample, sid->evsel, machine); |
| 885 | } |
| 886 | |
| 887 | static int deliver_sample_group(struct perf_session *session, |
| 888 | struct perf_tool *tool, |
| 889 | union perf_event *event, |
| 890 | struct perf_sample *sample, |
| 891 | struct machine *machine) |
| 892 | { |
| 893 | int ret = -EINVAL; |
| 894 | u64 i; |
| 895 | |
| 896 | for (i = 0; i < sample->read.group.nr; i++) { |
| 897 | ret = deliver_sample_value(session, tool, event, sample, |
| 898 | &sample->read.group.values[i], |
| 899 | machine); |
| 900 | if (ret) |
| 901 | break; |
| 902 | } |
| 903 | |
| 904 | return ret; |
| 905 | } |
| 906 | |
| 907 | static int |
| 908 | perf_session__deliver_sample(struct perf_session *session, |
| 909 | struct perf_tool *tool, |
| 910 | union perf_event *event, |
| 911 | struct perf_sample *sample, |
| 912 | struct perf_evsel *evsel, |
| 913 | struct machine *machine) |
| 914 | { |
| 915 | /* We know evsel != NULL. */ |
| 916 | u64 sample_type = evsel->attr.sample_type; |
| 917 | u64 read_format = evsel->attr.read_format; |
| 918 | |
| 919 | /* Standard sample delievery. */ |
| 920 | if (!(sample_type & PERF_SAMPLE_READ)) |
| 921 | return tool->sample(tool, event, sample, evsel, machine); |
| 922 | |
| 923 | /* For PERF_SAMPLE_READ we have either single or group mode. */ |
| 924 | if (read_format & PERF_FORMAT_GROUP) |
| 925 | return deliver_sample_group(session, tool, event, sample, |
| 926 | machine); |
| 927 | else |
| 928 | return deliver_sample_value(session, tool, event, sample, |
| 929 | &sample->read.one, machine); |
| 930 | } |
| 931 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 932 | static int perf_session_deliver_event(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 933 | union perf_event *event, |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 934 | struct perf_sample *sample, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 935 | struct perf_tool *tool, |
Thomas Gleixner | 532e726 | 2010-12-07 12:48:55 +0000 | [diff] [blame] | 936 | u64 file_offset) |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 937 | { |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 938 | struct perf_evsel *evsel; |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 939 | struct machine *machine; |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 940 | |
Thomas Gleixner | 532e726 | 2010-12-07 12:48:55 +0000 | [diff] [blame] | 941 | dump_event(session, event, file_offset, sample); |
| 942 | |
Arnaldo Carvalho de Melo | 7b27509 | 2011-10-29 12:15:04 -0200 | [diff] [blame] | 943 | evsel = perf_evlist__id2evsel(session->evlist, sample->id); |
| 944 | if (evsel != NULL && event->header.type != PERF_RECORD_SAMPLE) { |
| 945 | /* |
| 946 | * XXX We're leaving PERF_RECORD_SAMPLE unnacounted here |
| 947 | * because the tools right now may apply filters, discarding |
| 948 | * some of the samples. For consistency, in the future we |
| 949 | * should have something like nr_filtered_samples and remove |
| 950 | * the sample->period from total_sample_period, etc, KISS for |
| 951 | * now tho. |
| 952 | * |
| 953 | * Also testing against NULL allows us to handle files without |
| 954 | * attr.sample_id_all and/or without PERF_SAMPLE_ID. In the |
| 955 | * future probably it'll be a good idea to restrict event |
| 956 | * processing via perf_session to files with both set. |
| 957 | */ |
| 958 | hists__inc_nr_events(&evsel->hists, event->header.type); |
| 959 | } |
| 960 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 961 | machine = perf_session__find_machine_for_cpumode(session, event); |
| 962 | |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 963 | switch (event->header.type) { |
| 964 | case PERF_RECORD_SAMPLE: |
Jiri Olsa | 0f6a301 | 2012-08-07 15:20:45 +0200 | [diff] [blame] | 965 | dump_sample(evsel, event, sample); |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 966 | if (evsel == NULL) { |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 967 | ++session->stats.nr_unknown_id; |
Jiri Olsa | 6782206 | 2012-04-12 14:21:01 +0200 | [diff] [blame] | 968 | return 0; |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 969 | } |
Joerg Roedel | 0c09571 | 2012-02-10 18:05:04 +0100 | [diff] [blame] | 970 | if (machine == NULL) { |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 971 | ++session->stats.nr_unprocessable_samples; |
Jiri Olsa | 6782206 | 2012-04-12 14:21:01 +0200 | [diff] [blame] | 972 | return 0; |
Joerg Roedel | 0c09571 | 2012-02-10 18:05:04 +0100 | [diff] [blame] | 973 | } |
Jiri Olsa | e4caec0 | 2012-10-10 18:52:24 +0200 | [diff] [blame] | 974 | return perf_session__deliver_sample(session, tool, event, |
| 975 | sample, evsel, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 976 | case PERF_RECORD_MMAP: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 977 | return tool->mmap(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 978 | case PERF_RECORD_COMM: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 979 | return tool->comm(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 980 | case PERF_RECORD_FORK: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 981 | return tool->fork(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 982 | case PERF_RECORD_EXIT: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 983 | return tool->exit(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 984 | case PERF_RECORD_LOST: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 985 | if (tool->lost == perf_event__process_lost) |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 986 | session->stats.total_lost += event->lost.lost; |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 987 | return tool->lost(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 988 | case PERF_RECORD_READ: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 989 | return tool->read(tool, event, sample, evsel, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 990 | case PERF_RECORD_THROTTLE: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 991 | return tool->throttle(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 992 | case PERF_RECORD_UNTHROTTLE: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 993 | return tool->unthrottle(tool, event, sample, machine); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 994 | default: |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 995 | ++session->stats.nr_unknown_events; |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 996 | return -1; |
| 997 | } |
| 998 | } |
| 999 | |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1000 | static int perf_session__preprocess_sample(struct perf_session *session, |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1001 | union perf_event *event, struct perf_sample *sample) |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1002 | { |
| 1003 | if (event->header.type != PERF_RECORD_SAMPLE || |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 1004 | !(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_CALLCHAIN)) |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1005 | return 0; |
| 1006 | |
| 1007 | if (!ip_callchain__valid(sample->callchain, event)) { |
| 1008 | pr_debug("call-chain problem with event, skipping it.\n"); |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1009 | ++session->stats.nr_invalid_chains; |
| 1010 | session->stats.total_invalid_chains += sample->period; |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1011 | return -EINVAL; |
| 1012 | } |
| 1013 | return 0; |
| 1014 | } |
| 1015 | |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1016 | static int perf_session__process_user_event(struct perf_session *session, union perf_event *event, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1017 | struct perf_tool *tool, u64 file_offset) |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1018 | { |
Arnaldo Carvalho de Melo | 10d0f08 | 2011-11-11 22:45:41 -0200 | [diff] [blame] | 1019 | int err; |
| 1020 | |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1021 | dump_event(session, event, file_offset, NULL); |
| 1022 | |
| 1023 | /* These events are processed right away */ |
| 1024 | switch (event->header.type) { |
| 1025 | case PERF_RECORD_HEADER_ATTR: |
Adrian Hunter | 47c3d10 | 2013-07-04 16:20:21 +0300 | [diff] [blame] | 1026 | err = tool->attr(tool, event, &session->evlist); |
Arnaldo Carvalho de Melo | 10d0f08 | 2011-11-11 22:45:41 -0200 | [diff] [blame] | 1027 | if (err == 0) |
Arnaldo Carvalho de Melo | 7b56cce | 2012-08-01 19:31:00 -0300 | [diff] [blame] | 1028 | perf_session__set_id_hdr_size(session); |
Arnaldo Carvalho de Melo | 10d0f08 | 2011-11-11 22:45:41 -0200 | [diff] [blame] | 1029 | return err; |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1030 | case PERF_RECORD_HEADER_TRACING_DATA: |
| 1031 | /* setup for reading amidst mmap */ |
| 1032 | lseek(session->fd, file_offset, SEEK_SET); |
Adrian Hunter | 47c3d10 | 2013-07-04 16:20:21 +0300 | [diff] [blame] | 1033 | return tool->tracing_data(tool, event, session); |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1034 | case PERF_RECORD_HEADER_BUILD_ID: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1035 | return tool->build_id(tool, event, session); |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1036 | case PERF_RECORD_FINISHED_ROUND: |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1037 | return tool->finished_round(tool, event, session); |
Thomas Gleixner | ba74f06 | 2010-12-07 12:49:01 +0000 | [diff] [blame] | 1038 | default: |
| 1039 | return -EINVAL; |
| 1040 | } |
| 1041 | } |
| 1042 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 1043 | static void event_swap(union perf_event *event, bool sample_id_all) |
| 1044 | { |
| 1045 | perf_event__swap_op swap; |
| 1046 | |
| 1047 | swap = perf_event__swap_ops[event->header.type]; |
| 1048 | if (swap) |
| 1049 | swap(event, sample_id_all); |
| 1050 | } |
| 1051 | |
David Ahern | e30b88a | 2013-08-05 21:41:33 -0400 | [diff] [blame] | 1052 | static int perf_session__process_event(struct perf_session *session, |
| 1053 | union perf_event *event, |
| 1054 | struct perf_tool *tool, |
| 1055 | u64 file_offset) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1056 | { |
Arnaldo Carvalho de Melo | 8d50e5b | 2011-01-29 13:02:00 -0200 | [diff] [blame] | 1057 | struct perf_sample sample; |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1058 | int ret; |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1059 | |
Jiri Olsa | 268fb20 | 2012-05-30 14:23:43 +0200 | [diff] [blame] | 1060 | if (session->header.needs_swap) |
Arnaldo Carvalho de Melo | 5e56247 | 2012-08-01 19:25:26 -0300 | [diff] [blame] | 1061 | event_swap(event, perf_evlist__sample_id_all(session->evlist)); |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1062 | |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 1063 | if (event->header.type >= PERF_RECORD_HEADER_MAX) |
| 1064 | return -EINVAL; |
Arnaldo Carvalho de Melo | 640c03c | 2010-12-02 14:10:21 -0200 | [diff] [blame] | 1065 | |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1066 | events_stats__inc(&session->stats, event->header.type); |
Thomas Gleixner | 9aefcab | 2010-12-07 12:48:47 +0000 | [diff] [blame] | 1067 | |
| 1068 | if (event->header.type >= PERF_RECORD_USER_TYPE_START) |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1069 | return perf_session__process_user_event(session, event, tool, file_offset); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1070 | |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1071 | /* |
| 1072 | * For all kernel events we get the sample data |
| 1073 | */ |
Arnaldo Carvalho de Melo | 0807d2d | 2012-09-26 12:48:18 -0300 | [diff] [blame] | 1074 | ret = perf_evlist__parse_sample(session->evlist, event, &sample); |
Frederic Weisbecker | 5538bec | 2011-05-22 02:17:22 +0200 | [diff] [blame] | 1075 | if (ret) |
| 1076 | return ret; |
Thomas Gleixner | 3dfc2c0 | 2010-12-07 12:48:58 +0000 | [diff] [blame] | 1077 | |
| 1078 | /* Preprocess sample records - precheck callchains */ |
| 1079 | if (perf_session__preprocess_sample(session, event, &sample)) |
| 1080 | return 0; |
| 1081 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1082 | if (tool->ordered_samples) { |
Thomas Gleixner | e4c2df1 | 2010-12-07 12:48:50 +0000 | [diff] [blame] | 1083 | ret = perf_session_queue_event(session, event, &sample, |
| 1084 | file_offset); |
Thomas Gleixner | cbf4164 | 2010-12-05 14:32:55 +0100 | [diff] [blame] | 1085 | if (ret != -ETIME) |
| 1086 | return ret; |
| 1087 | } |
| 1088 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1089 | return perf_session_deliver_event(session, event, &sample, tool, |
Thomas Gleixner | f74725d | 2010-12-07 12:48:53 +0000 | [diff] [blame] | 1090 | file_offset); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1091 | } |
| 1092 | |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 1093 | void perf_event_header__bswap(struct perf_event_header *self) |
| 1094 | { |
| 1095 | self->type = bswap_32(self->type); |
| 1096 | self->misc = bswap_16(self->misc); |
| 1097 | self->size = bswap_16(self->size); |
| 1098 | } |
| 1099 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 1100 | struct thread *perf_session__findnew(struct perf_session *session, pid_t pid) |
| 1101 | { |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 1102 | return machine__findnew_thread(&session->machines.host, pid); |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 1103 | } |
| 1104 | |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1105 | static struct thread *perf_session__register_idle_thread(struct perf_session *self) |
| 1106 | { |
| 1107 | struct thread *thread = perf_session__findnew(self, 0); |
| 1108 | |
| 1109 | if (thread == NULL || thread__set_comm(thread, "swapper")) { |
| 1110 | pr_err("problem inserting idle task.\n"); |
| 1111 | thread = NULL; |
| 1112 | } |
| 1113 | |
| 1114 | return thread; |
| 1115 | } |
| 1116 | |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1117 | static void perf_session__warn_about_errors(const struct perf_session *session, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1118 | const struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1119 | { |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1120 | if (tool->lost == perf_event__process_lost && |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1121 | session->stats.nr_events[PERF_RECORD_LOST] != 0) { |
Arnaldo Carvalho de Melo | 7b27509 | 2011-10-29 12:15:04 -0200 | [diff] [blame] | 1122 | ui__warning("Processed %d events and lost %d chunks!\n\n" |
| 1123 | "Check IO/CPU overload!\n\n", |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1124 | session->stats.nr_events[0], |
| 1125 | session->stats.nr_events[PERF_RECORD_LOST]); |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1126 | } |
| 1127 | |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1128 | if (session->stats.nr_unknown_events != 0) { |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1129 | ui__warning("Found %u unknown events!\n\n" |
| 1130 | "Is this an older tool processing a perf.data " |
| 1131 | "file generated by a more recent tool?\n\n" |
| 1132 | "If that is not the case, consider " |
| 1133 | "reporting to linux-kernel@vger.kernel.org.\n\n", |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1134 | session->stats.nr_unknown_events); |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1135 | } |
| 1136 | |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1137 | if (session->stats.nr_unknown_id != 0) { |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 1138 | ui__warning("%u samples with id not present in the header\n", |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1139 | session->stats.nr_unknown_id); |
Arnaldo Carvalho de Melo | 9e69c21 | 2011-03-15 15:44:01 -0300 | [diff] [blame] | 1140 | } |
| 1141 | |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1142 | if (session->stats.nr_invalid_chains != 0) { |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1143 | ui__warning("Found invalid callchains!\n\n" |
| 1144 | "%u out of %u events were discarded for this reason.\n\n" |
| 1145 | "Consider reporting to linux-kernel@vger.kernel.org.\n\n", |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1146 | session->stats.nr_invalid_chains, |
| 1147 | session->stats.nr_events[PERF_RECORD_SAMPLE]); |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1148 | } |
Joerg Roedel | 0c09571 | 2012-02-10 18:05:04 +0100 | [diff] [blame] | 1149 | |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1150 | if (session->stats.nr_unprocessable_samples != 0) { |
Joerg Roedel | 0c09571 | 2012-02-10 18:05:04 +0100 | [diff] [blame] | 1151 | ui__warning("%u unprocessable samples recorded.\n" |
| 1152 | "Do you have a KVM guest running and not using 'perf kvm'?\n", |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1153 | session->stats.nr_unprocessable_samples); |
Joerg Roedel | 0c09571 | 2012-02-10 18:05:04 +0100 | [diff] [blame] | 1154 | } |
Arnaldo Carvalho de Melo | 1109599 | 2011-01-04 16:25:15 -0200 | [diff] [blame] | 1155 | } |
| 1156 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1157 | #define session_done() (*(volatile int *)(&session_done)) |
| 1158 | volatile int session_done; |
| 1159 | |
| 1160 | static int __perf_session__process_pipe_events(struct perf_session *self, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1161 | struct perf_tool *tool) |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1162 | { |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1163 | union perf_event *event; |
| 1164 | uint32_t size, cur_size = 0; |
| 1165 | void *buf = NULL; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1166 | int skip = 0; |
| 1167 | u64 head; |
| 1168 | int err; |
| 1169 | void *p; |
| 1170 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1171 | perf_tool__fill_defaults(tool); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1172 | |
| 1173 | head = 0; |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1174 | cur_size = sizeof(union perf_event); |
| 1175 | |
| 1176 | buf = malloc(cur_size); |
| 1177 | if (!buf) |
| 1178 | return -errno; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1179 | more: |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1180 | event = buf; |
| 1181 | err = readn(self->fd, event, sizeof(struct perf_event_header)); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1182 | if (err <= 0) { |
| 1183 | if (err == 0) |
| 1184 | goto done; |
| 1185 | |
| 1186 | pr_err("failed to read event header\n"); |
| 1187 | goto out_err; |
| 1188 | } |
| 1189 | |
| 1190 | if (self->header.needs_swap) |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1191 | perf_event_header__bswap(&event->header); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1192 | |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1193 | size = event->header.size; |
Adrian Hunter | 27389d7 | 2013-07-04 16:20:27 +0300 | [diff] [blame] | 1194 | if (size < sizeof(struct perf_event_header)) { |
| 1195 | pr_err("bad event header size\n"); |
| 1196 | goto out_err; |
| 1197 | } |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1198 | |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1199 | if (size > cur_size) { |
| 1200 | void *new = realloc(buf, size); |
| 1201 | if (!new) { |
| 1202 | pr_err("failed to allocate memory to read event\n"); |
| 1203 | goto out_err; |
| 1204 | } |
| 1205 | buf = new; |
| 1206 | cur_size = size; |
| 1207 | event = buf; |
| 1208 | } |
| 1209 | p = event; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1210 | p += sizeof(struct perf_event_header); |
| 1211 | |
Tom Zanussi | 794e43b | 2010-05-05 00:27:40 -0500 | [diff] [blame] | 1212 | if (size - sizeof(struct perf_event_header)) { |
Arnaldo Carvalho de Melo | 1e7972c | 2011-01-03 16:50:55 -0200 | [diff] [blame] | 1213 | err = readn(self->fd, p, size - sizeof(struct perf_event_header)); |
Tom Zanussi | 794e43b | 2010-05-05 00:27:40 -0500 | [diff] [blame] | 1214 | if (err <= 0) { |
| 1215 | if (err == 0) { |
| 1216 | pr_err("unexpected end of event stream\n"); |
| 1217 | goto done; |
| 1218 | } |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1219 | |
Tom Zanussi | 794e43b | 2010-05-05 00:27:40 -0500 | [diff] [blame] | 1220 | pr_err("failed to read event data\n"); |
| 1221 | goto out_err; |
| 1222 | } |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1223 | } |
| 1224 | |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1225 | if ((skip = perf_session__process_event(self, event, tool, head)) < 0) { |
Jiri Olsa | 9389a46 | 2012-04-16 20:42:51 +0200 | [diff] [blame] | 1226 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1227 | head, event->header.size, event->header.type); |
Jiri Olsa | 9389a46 | 2012-04-16 20:42:51 +0200 | [diff] [blame] | 1228 | err = -EINVAL; |
| 1229 | goto out_err; |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1230 | } |
| 1231 | |
| 1232 | head += size; |
| 1233 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1234 | if (skip > 0) |
| 1235 | head += skip; |
| 1236 | |
| 1237 | if (!session_done()) |
| 1238 | goto more; |
| 1239 | done: |
| 1240 | err = 0; |
| 1241 | out_err: |
Stephane Eranian | 444d286 | 2012-05-15 13:28:12 +0200 | [diff] [blame] | 1242 | free(buf); |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1243 | perf_session__warn_about_errors(self, tool); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 1244 | perf_session_free_sample_buffers(self); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1245 | return err; |
| 1246 | } |
| 1247 | |
Frederic Weisbecker | 998bedc | 2011-05-23 13:06:28 +0200 | [diff] [blame] | 1248 | static union perf_event * |
| 1249 | fetch_mmaped_event(struct perf_session *session, |
| 1250 | u64 head, size_t mmap_size, char *buf) |
| 1251 | { |
| 1252 | union perf_event *event; |
| 1253 | |
| 1254 | /* |
| 1255 | * Ensure we have enough space remaining to read |
| 1256 | * the size of the event in the headers. |
| 1257 | */ |
| 1258 | if (head + sizeof(event->header) > mmap_size) |
| 1259 | return NULL; |
| 1260 | |
| 1261 | event = (union perf_event *)(buf + head); |
| 1262 | |
| 1263 | if (session->header.needs_swap) |
| 1264 | perf_event_header__bswap(&event->header); |
| 1265 | |
Adrian Hunter | 27389d7 | 2013-07-04 16:20:27 +0300 | [diff] [blame] | 1266 | if (head + event->header.size > mmap_size) { |
| 1267 | /* We're not fetching the event so swap back again */ |
| 1268 | if (session->header.needs_swap) |
| 1269 | perf_event_header__bswap(&event->header); |
Frederic Weisbecker | 998bedc | 2011-05-23 13:06:28 +0200 | [diff] [blame] | 1270 | return NULL; |
Adrian Hunter | 27389d7 | 2013-07-04 16:20:27 +0300 | [diff] [blame] | 1271 | } |
Frederic Weisbecker | 998bedc | 2011-05-23 13:06:28 +0200 | [diff] [blame] | 1272 | |
| 1273 | return event; |
| 1274 | } |
| 1275 | |
David Miller | 35d48dd | 2012-11-10 14:12:19 -0500 | [diff] [blame] | 1276 | /* |
| 1277 | * On 64bit we can mmap the data file in one go. No need for tiny mmap |
| 1278 | * slices. On 32bit we use 32MB. |
| 1279 | */ |
| 1280 | #if BITS_PER_LONG == 64 |
| 1281 | #define MMAP_SIZE ULLONG_MAX |
| 1282 | #define NUM_MMAPS 1 |
| 1283 | #else |
| 1284 | #define MMAP_SIZE (32 * 1024 * 1024ULL) |
| 1285 | #define NUM_MMAPS 128 |
| 1286 | #endif |
| 1287 | |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1288 | int __perf_session__process_events(struct perf_session *session, |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 1289 | u64 data_offset, u64 data_size, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1290 | u64 file_size, struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1291 | { |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1292 | u64 head, page_offset, file_offset, file_pos, progress_next; |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1293 | int err, mmap_prot, mmap_flags, map_idx = 0; |
Arnaldo Carvalho de Melo | 0c1fe6b | 2012-10-06 14:57:10 -0300 | [diff] [blame] | 1294 | size_t mmap_size; |
David Miller | 35d48dd | 2012-11-10 14:12:19 -0500 | [diff] [blame] | 1295 | char *buf, *mmaps[NUM_MMAPS]; |
Arnaldo Carvalho de Melo | 8115d60 | 2011-01-29 14:01:45 -0200 | [diff] [blame] | 1296 | union perf_event *event; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1297 | uint32_t size; |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1298 | |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1299 | perf_tool__fill_defaults(tool); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1300 | |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1301 | page_offset = page_size * (data_offset / page_size); |
| 1302 | file_offset = page_offset; |
| 1303 | head = data_offset - page_offset; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1304 | |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1305 | if (data_offset + data_size < file_size) |
| 1306 | file_size = data_offset + data_size; |
| 1307 | |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1308 | progress_next = file_size / 16; |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1309 | |
David Miller | 35d48dd | 2012-11-10 14:12:19 -0500 | [diff] [blame] | 1310 | mmap_size = MMAP_SIZE; |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1311 | if (mmap_size > file_size) |
| 1312 | mmap_size = file_size; |
| 1313 | |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1314 | memset(mmaps, 0, sizeof(mmaps)); |
| 1315 | |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 1316 | mmap_prot = PROT_READ; |
| 1317 | mmap_flags = MAP_SHARED; |
| 1318 | |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1319 | if (session->header.needs_swap) { |
Arnaldo Carvalho de Melo | ba21594 | 2010-01-14 12:23:10 -0200 | [diff] [blame] | 1320 | mmap_prot |= PROT_WRITE; |
| 1321 | mmap_flags = MAP_PRIVATE; |
| 1322 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1323 | remap: |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1324 | buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, session->fd, |
| 1325 | file_offset); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1326 | if (buf == MAP_FAILED) { |
| 1327 | pr_err("failed to mmap file\n"); |
| 1328 | err = -errno; |
| 1329 | goto out_err; |
| 1330 | } |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1331 | mmaps[map_idx] = buf; |
| 1332 | map_idx = (map_idx + 1) & (ARRAY_SIZE(mmaps) - 1); |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1333 | file_pos = file_offset + head; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1334 | |
| 1335 | more: |
Frederic Weisbecker | 998bedc | 2011-05-23 13:06:28 +0200 | [diff] [blame] | 1336 | event = fetch_mmaped_event(session, head, mmap_size, buf); |
| 1337 | if (!event) { |
Thomas Gleixner | fe17420 | 2010-11-30 17:49:49 +0000 | [diff] [blame] | 1338 | if (mmaps[map_idx]) { |
| 1339 | munmap(mmaps[map_idx], mmap_size); |
| 1340 | mmaps[map_idx] = NULL; |
| 1341 | } |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1342 | |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1343 | page_offset = page_size * (head / page_size); |
| 1344 | file_offset += page_offset; |
| 1345 | head -= page_offset; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1346 | goto remap; |
| 1347 | } |
| 1348 | |
| 1349 | size = event->header.size; |
| 1350 | |
Adrian Hunter | 27389d7 | 2013-07-04 16:20:27 +0300 | [diff] [blame] | 1351 | if (size < sizeof(struct perf_event_header) || |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1352 | perf_session__process_event(session, event, tool, file_pos) < 0) { |
Jiri Olsa | 9389a46 | 2012-04-16 20:42:51 +0200 | [diff] [blame] | 1353 | pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n", |
| 1354 | file_offset + head, event->header.size, |
| 1355 | event->header.type); |
| 1356 | err = -EINVAL; |
| 1357 | goto out_err; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1358 | } |
| 1359 | |
| 1360 | head += size; |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1361 | file_pos += size; |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1362 | |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1363 | if (file_pos >= progress_next) { |
| 1364 | progress_next += file_size / 16; |
Arnaldo Carvalho de Melo | ca59bcb | 2011-10-25 13:29:11 -0200 | [diff] [blame] | 1365 | ui_progress__update(file_pos, file_size, |
| 1366 | "Processing events..."); |
Thomas Gleixner | 55b4462 | 2010-11-30 17:49:46 +0000 | [diff] [blame] | 1367 | } |
| 1368 | |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1369 | if (file_pos < file_size) |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1370 | goto more; |
Thomas Gleixner | d651328 | 2010-11-30 17:49:44 +0000 | [diff] [blame] | 1371 | |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1372 | err = 0; |
Frederic Weisbecker | c61e52e | 2010-04-24 00:04:12 +0200 | [diff] [blame] | 1373 | /* do the final flush for ordered samples */ |
Thomas Gleixner | 0331ee0 | 2010-11-30 17:49:38 +0000 | [diff] [blame] | 1374 | session->ordered_samples.next_flush = ULLONG_MAX; |
David Ahern | d25380cd | 2012-08-26 12:24:41 -0600 | [diff] [blame] | 1375 | err = flush_sample_queue(session, tool); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1376 | out_err: |
Namhyung Kim | a5580f3 | 2012-11-13 22:30:34 +0900 | [diff] [blame] | 1377 | ui_progress__finish(); |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1378 | perf_session__warn_about_errors(session, tool); |
Thomas Gleixner | 020bb75 | 2010-11-30 17:49:53 +0000 | [diff] [blame] | 1379 | perf_session_free_sample_buffers(session); |
Arnaldo Carvalho de Melo | 06aae590 | 2009-12-27 21:36:59 -0200 | [diff] [blame] | 1380 | return err; |
| 1381 | } |
Arnaldo Carvalho de Melo | 2729559 | 2009-12-27 21:37:01 -0200 | [diff] [blame] | 1382 | |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 1383 | int perf_session__process_events(struct perf_session *self, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1384 | struct perf_tool *tool) |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 1385 | { |
| 1386 | int err; |
| 1387 | |
| 1388 | if (perf_session__register_idle_thread(self) == NULL) |
| 1389 | return -ENOMEM; |
| 1390 | |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1391 | if (!self->fd_pipe) |
| 1392 | err = __perf_session__process_events(self, |
| 1393 | self->header.data_offset, |
| 1394 | self->header.data_size, |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1395 | self->size, tool); |
Tom Zanussi | 8dc5810 | 2010-04-01 23:59:15 -0500 | [diff] [blame] | 1396 | else |
Arnaldo Carvalho de Melo | 45694aa | 2011-11-28 08:30:20 -0200 | [diff] [blame] | 1397 | err = __perf_session__process_pipe_events(self, tool); |
Dave Martin | 88ca895 | 2010-07-27 11:46:12 -0300 | [diff] [blame] | 1398 | |
Arnaldo Carvalho de Melo | 6122e4e | 2010-02-03 16:52:05 -0200 | [diff] [blame] | 1399 | return err; |
| 1400 | } |
| 1401 | |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 1402 | bool perf_session__has_traces(struct perf_session *session, const char *msg) |
Arnaldo Carvalho de Melo | 2729559 | 2009-12-27 21:37:01 -0200 | [diff] [blame] | 1403 | { |
Arnaldo Carvalho de Melo | 7f3be65 | 2012-08-01 19:15:52 -0300 | [diff] [blame] | 1404 | if (!(perf_evlist__sample_type(session->evlist) & PERF_SAMPLE_RAW)) { |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 1405 | pr_err("No trace sample to read. Did you call 'perf %s'?\n", msg); |
| 1406 | return false; |
Arnaldo Carvalho de Melo | 2729559 | 2009-12-27 21:37:01 -0200 | [diff] [blame] | 1407 | } |
| 1408 | |
Arnaldo Carvalho de Melo | d549c769 | 2009-12-27 21:37:02 -0200 | [diff] [blame] | 1409 | return true; |
Arnaldo Carvalho de Melo | 2729559 | 2009-12-27 21:37:01 -0200 | [diff] [blame] | 1410 | } |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1411 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1412 | int maps__set_kallsyms_ref_reloc_sym(struct map **maps, |
| 1413 | const char *symbol_name, u64 addr) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1414 | { |
| 1415 | char *bracket; |
Arnaldo Carvalho de Melo | 9de89fe | 2010-02-03 16:52:00 -0200 | [diff] [blame] | 1416 | enum map_type i; |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1417 | struct ref_reloc_sym *ref; |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1418 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1419 | ref = zalloc(sizeof(struct ref_reloc_sym)); |
| 1420 | if (ref == NULL) |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1421 | return -ENOMEM; |
| 1422 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1423 | ref->name = strdup(symbol_name); |
| 1424 | if (ref->name == NULL) { |
| 1425 | free(ref); |
| 1426 | return -ENOMEM; |
| 1427 | } |
| 1428 | |
| 1429 | bracket = strchr(ref->name, ']'); |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1430 | if (bracket) |
| 1431 | *bracket = '\0'; |
| 1432 | |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1433 | ref->addr = addr; |
Arnaldo Carvalho de Melo | 9de89fe | 2010-02-03 16:52:00 -0200 | [diff] [blame] | 1434 | |
| 1435 | for (i = 0; i < MAP__NR_TYPES; ++i) { |
Zhang, Yanmin | a1645ce | 2010-04-19 13:32:50 +0800 | [diff] [blame] | 1436 | struct kmap *kmap = map__kmap(maps[i]); |
| 1437 | kmap->ref_reloc_sym = ref; |
Arnaldo Carvalho de Melo | 9de89fe | 2010-02-03 16:52:00 -0200 | [diff] [blame] | 1438 | } |
| 1439 | |
Arnaldo Carvalho de Melo | 56b03f3 | 2010-01-05 16:50:31 -0200 | [diff] [blame] | 1440 | return 0; |
| 1441 | } |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 1442 | |
| 1443 | size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) |
| 1444 | { |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 1445 | return machines__fprintf_dsos(&self->machines, fp); |
Arnaldo Carvalho de Melo | 1f626bc | 2010-05-09 19:57:08 -0300 | [diff] [blame] | 1446 | } |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 1447 | |
| 1448 | size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, |
Arnaldo Carvalho de Melo | 417c2ff | 2012-12-07 09:53:58 -0300 | [diff] [blame] | 1449 | bool (skip)(struct dso *dso, int parm), int parm) |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 1450 | { |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 1451 | return machines__fprintf_dsos_buildid(&self->machines, fp, skip, parm); |
Arnaldo Carvalho de Melo | f869097 | 2010-05-19 13:41:23 -0300 | [diff] [blame] | 1452 | } |
Arnaldo Carvalho de Melo | e248de3 | 2011-03-05 21:40:06 -0300 | [diff] [blame] | 1453 | |
| 1454 | size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) |
| 1455 | { |
| 1456 | struct perf_evsel *pos; |
| 1457 | size_t ret = fprintf(fp, "Aggregated stats:\n"); |
| 1458 | |
Arnaldo Carvalho de Melo | 28a6b6a | 2012-12-18 16:24:46 -0300 | [diff] [blame] | 1459 | ret += events_stats__fprintf(&session->stats, fp); |
Arnaldo Carvalho de Melo | e248de3 | 2011-03-05 21:40:06 -0300 | [diff] [blame] | 1460 | |
| 1461 | list_for_each_entry(pos, &session->evlist->entries, node) { |
Arnaldo Carvalho de Melo | 7289f83 | 2012-06-12 12:34:58 -0300 | [diff] [blame] | 1462 | ret += fprintf(fp, "%s stats:\n", perf_evsel__name(pos)); |
Arnaldo Carvalho de Melo | 52168ee | 2012-12-18 16:02:17 -0300 | [diff] [blame] | 1463 | ret += events_stats__fprintf(&pos->hists.stats, fp); |
Arnaldo Carvalho de Melo | e248de3 | 2011-03-05 21:40:06 -0300 | [diff] [blame] | 1464 | } |
| 1465 | |
| 1466 | return ret; |
| 1467 | } |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1468 | |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 1469 | size_t perf_session__fprintf(struct perf_session *session, FILE *fp) |
| 1470 | { |
| 1471 | /* |
| 1472 | * FIXME: Here we have to actually print all the machines in this |
| 1473 | * session, not just the host... |
| 1474 | */ |
Arnaldo Carvalho de Melo | 876650e | 2012-12-18 19:15:48 -0300 | [diff] [blame] | 1475 | return machine__fprintf(&session->machines.host, fp); |
Arnaldo Carvalho de Melo | b424eba | 2011-11-09 13:24:25 -0200 | [diff] [blame] | 1476 | } |
| 1477 | |
David Ahern | 9cbdb70 | 2011-04-06 21:54:20 -0600 | [diff] [blame] | 1478 | struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, |
| 1479 | unsigned int type) |
| 1480 | { |
| 1481 | struct perf_evsel *pos; |
| 1482 | |
| 1483 | list_for_each_entry(pos, &session->evlist->entries, node) { |
| 1484 | if (pos->attr.type == type) |
| 1485 | return pos; |
| 1486 | } |
| 1487 | return NULL; |
| 1488 | } |
| 1489 | |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 1490 | void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event, |
| 1491 | struct perf_sample *sample, struct machine *machine, |
| 1492 | int print_sym, int print_dso, int print_symoffset) |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1493 | { |
| 1494 | struct addr_location al; |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1495 | struct callchain_cursor_node *node; |
| 1496 | |
Arnaldo Carvalho de Melo | 743eb86 | 2011-11-28 07:56:39 -0200 | [diff] [blame] | 1497 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1498 | NULL) < 0) { |
| 1499 | error("problem processing %d event, skipping it.\n", |
| 1500 | event->header.type); |
| 1501 | return; |
| 1502 | } |
| 1503 | |
| 1504 | if (symbol_conf.use_callchain && sample->callchain) { |
| 1505 | |
Jiri Olsa | 71ad0f5 | 2012-08-07 15:20:46 +0200 | [diff] [blame] | 1506 | if (machine__resolve_callchain(machine, evsel, al.thread, |
Greg Price | b21484f | 2012-12-06 21:48:05 -0800 | [diff] [blame] | 1507 | sample, NULL, NULL) != 0) { |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1508 | if (verbose) |
| 1509 | error("Failed to resolve callchain. Skipping\n"); |
| 1510 | return; |
| 1511 | } |
Namhyung Kim | 4726064 | 2012-05-31 14:43:26 +0900 | [diff] [blame] | 1512 | callchain_cursor_commit(&callchain_cursor); |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1513 | |
| 1514 | while (1) { |
Namhyung Kim | 4726064 | 2012-05-31 14:43:26 +0900 | [diff] [blame] | 1515 | node = callchain_cursor_current(&callchain_cursor); |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1516 | if (!node) |
| 1517 | break; |
| 1518 | |
David Ahern | 787bef1 | 2011-05-27 14:28:43 -0600 | [diff] [blame] | 1519 | printf("\t%16" PRIx64, node->ip); |
| 1520 | if (print_sym) { |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1521 | printf(" "); |
David Ahern | 251f426 | 2013-07-28 09:14:34 -0600 | [diff] [blame] | 1522 | if (print_symoffset) { |
| 1523 | al.addr = node->ip; |
| 1524 | symbol__fprintf_symname_offs(node->sym, &al, stdout); |
| 1525 | } else |
| 1526 | symbol__fprintf_symname(node->sym, stdout); |
David Ahern | 610723f | 2011-05-27 14:28:44 -0600 | [diff] [blame] | 1527 | } |
David Ahern | 251f426 | 2013-07-28 09:14:34 -0600 | [diff] [blame] | 1528 | |
David Ahern | 610723f | 2011-05-27 14:28:44 -0600 | [diff] [blame] | 1529 | if (print_dso) { |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1530 | printf(" ("); |
David Ahern | 52deff7 | 2012-05-29 22:58:26 -0600 | [diff] [blame] | 1531 | map__fprintf_dsoname(node->map, stdout); |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1532 | printf(")"); |
David Ahern | 787bef1 | 2011-05-27 14:28:43 -0600 | [diff] [blame] | 1533 | } |
| 1534 | printf("\n"); |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1535 | |
Namhyung Kim | 4726064 | 2012-05-31 14:43:26 +0900 | [diff] [blame] | 1536 | callchain_cursor_advance(&callchain_cursor); |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1537 | } |
| 1538 | |
| 1539 | } else { |
David Ahern | adc4bf9 | 2011-05-30 09:16:27 -0600 | [diff] [blame] | 1540 | printf("%16" PRIx64, sample->ip); |
David Ahern | 787bef1 | 2011-05-27 14:28:43 -0600 | [diff] [blame] | 1541 | if (print_sym) { |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1542 | printf(" "); |
Akihiro Nagai | a978f2a | 2012-01-30 13:43:15 +0900 | [diff] [blame] | 1543 | if (print_symoffset) |
| 1544 | symbol__fprintf_symname_offs(al.sym, &al, |
| 1545 | stdout); |
| 1546 | else |
| 1547 | symbol__fprintf_symname(al.sym, stdout); |
David Ahern | 610723f | 2011-05-27 14:28:44 -0600 | [diff] [blame] | 1548 | } |
| 1549 | |
| 1550 | if (print_dso) { |
Akihiro Nagai | 547a92e | 2012-01-30 13:42:57 +0900 | [diff] [blame] | 1551 | printf(" ("); |
| 1552 | map__fprintf_dsoname(al.map, stdout); |
| 1553 | printf(")"); |
David Ahern | 787bef1 | 2011-05-27 14:28:43 -0600 | [diff] [blame] | 1554 | } |
David Ahern | c0230b2 | 2011-03-09 22:23:27 -0700 | [diff] [blame] | 1555 | } |
| 1556 | } |
Anton Blanchard | 5d67be9 | 2011-07-04 21:57:50 +1000 | [diff] [blame] | 1557 | |
| 1558 | int perf_session__cpu_bitmap(struct perf_session *session, |
| 1559 | const char *cpu_list, unsigned long *cpu_bitmap) |
| 1560 | { |
| 1561 | int i; |
| 1562 | struct cpu_map *map; |
| 1563 | |
| 1564 | for (i = 0; i < PERF_TYPE_MAX; ++i) { |
| 1565 | struct perf_evsel *evsel; |
| 1566 | |
| 1567 | evsel = perf_session__find_first_evtype(session, i); |
| 1568 | if (!evsel) |
| 1569 | continue; |
| 1570 | |
| 1571 | if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) { |
| 1572 | pr_err("File does not contain CPU events. " |
| 1573 | "Remove -c option to proceed.\n"); |
| 1574 | return -1; |
| 1575 | } |
| 1576 | } |
| 1577 | |
| 1578 | map = cpu_map__new(cpu_list); |
David Ahern | 47fbe53 | 2011-11-13 10:45:27 -0700 | [diff] [blame] | 1579 | if (map == NULL) { |
| 1580 | pr_err("Invalid cpu_list\n"); |
| 1581 | return -1; |
| 1582 | } |
Anton Blanchard | 5d67be9 | 2011-07-04 21:57:50 +1000 | [diff] [blame] | 1583 | |
| 1584 | for (i = 0; i < map->nr; i++) { |
| 1585 | int cpu = map->map[i]; |
| 1586 | |
| 1587 | if (cpu >= MAX_NR_CPUS) { |
| 1588 | pr_err("Requested CPU %d too large. " |
| 1589 | "Consider raising MAX_NR_CPUS\n", cpu); |
| 1590 | return -1; |
| 1591 | } |
| 1592 | |
| 1593 | set_bit(cpu, cpu_bitmap); |
| 1594 | } |
| 1595 | |
| 1596 | return 0; |
| 1597 | } |
Stephane Eranian | fbe96f2 | 2011-09-30 15:40:40 +0200 | [diff] [blame] | 1598 | |
| 1599 | void perf_session__fprintf_info(struct perf_session *session, FILE *fp, |
| 1600 | bool full) |
| 1601 | { |
| 1602 | struct stat st; |
| 1603 | int ret; |
| 1604 | |
| 1605 | if (session == NULL || fp == NULL) |
| 1606 | return; |
| 1607 | |
| 1608 | ret = fstat(session->fd, &st); |
| 1609 | if (ret == -1) |
| 1610 | return; |
| 1611 | |
| 1612 | fprintf(fp, "# ========\n"); |
| 1613 | fprintf(fp, "# captured on: %s", ctime(&st.st_ctime)); |
| 1614 | perf_header__fprintf_info(session, fp, full); |
| 1615 | fprintf(fp, "# ========\n#\n"); |
| 1616 | } |
Arnaldo Carvalho de Melo | da37896 | 2012-06-27 13:08:42 -0300 | [diff] [blame] | 1617 | |
| 1618 | |
| 1619 | int __perf_session__set_tracepoints_handlers(struct perf_session *session, |
| 1620 | const struct perf_evsel_str_handler *assocs, |
| 1621 | size_t nr_assocs) |
| 1622 | { |
| 1623 | struct perf_evlist *evlist = session->evlist; |
| 1624 | struct event_format *format; |
| 1625 | struct perf_evsel *evsel; |
| 1626 | char *tracepoint, *name; |
| 1627 | size_t i; |
| 1628 | int err; |
| 1629 | |
| 1630 | for (i = 0; i < nr_assocs; i++) { |
| 1631 | err = -ENOMEM; |
| 1632 | tracepoint = strdup(assocs[i].name); |
| 1633 | if (tracepoint == NULL) |
| 1634 | goto out; |
| 1635 | |
| 1636 | err = -ENOENT; |
| 1637 | name = strchr(tracepoint, ':'); |
| 1638 | if (name == NULL) |
| 1639 | goto out_free; |
| 1640 | |
| 1641 | *name++ = '\0'; |
| 1642 | format = pevent_find_event_by_name(session->pevent, |
| 1643 | tracepoint, name); |
| 1644 | if (format == NULL) { |
| 1645 | /* |
| 1646 | * Adding a handler for an event not in the session, |
| 1647 | * just ignore it. |
| 1648 | */ |
| 1649 | goto next; |
| 1650 | } |
| 1651 | |
| 1652 | evsel = perf_evlist__find_tracepoint_by_id(evlist, format->id); |
| 1653 | if (evsel == NULL) |
| 1654 | goto next; |
| 1655 | |
| 1656 | err = -EEXIST; |
| 1657 | if (evsel->handler.func != NULL) |
| 1658 | goto out_free; |
| 1659 | evsel->handler.func = assocs[i].handler; |
| 1660 | next: |
| 1661 | free(tracepoint); |
| 1662 | } |
| 1663 | |
| 1664 | err = 0; |
| 1665 | out: |
| 1666 | return err; |
| 1667 | |
| 1668 | out_free: |
| 1669 | free(tracepoint); |
| 1670 | goto out; |
| 1671 | } |