diff options
Diffstat (limited to 'tools/perf/builtin-annotate.c')
| -rw-r--r-- | tools/perf/builtin-annotate.c | 351 |
1 files changed, 88 insertions, 263 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 8879463807e..695de4b5ae6 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c | |||
| @@ -9,6 +9,7 @@ | |||
| 9 | 9 | ||
| 10 | #include "util/util.h" | 10 | #include "util/util.h" |
| 11 | 11 | ||
| 12 | #include "util/util.h" | ||
| 12 | #include "util/color.h" | 13 | #include "util/color.h" |
| 13 | #include <linux/list.h> | 14 | #include <linux/list.h> |
| 14 | #include "util/cache.h" | 15 | #include "util/cache.h" |
| @@ -18,6 +19,9 @@ | |||
| 18 | #include "perf.h" | 19 | #include "perf.h" |
| 19 | #include "util/debug.h" | 20 | #include "util/debug.h" |
| 20 | 21 | ||
| 22 | #include "util/evlist.h" | ||
| 23 | #include "util/evsel.h" | ||
| 24 | #include "util/annotate.h" | ||
| 21 | #include "util/event.h" | 25 | #include "util/event.h" |
| 22 | #include "util/parse-options.h" | 26 | #include "util/parse-options.h" |
| 23 | #include "util/parse-events.h" | 27 | #include "util/parse-events.h" |
| @@ -36,9 +40,13 @@ static bool print_line; | |||
| 36 | 40 | ||
| 37 | static const char *sym_hist_filter; | 41 | static const char *sym_hist_filter; |
| 38 | 42 | ||
| 39 | static int hists__add_entry(struct hists *self, struct addr_location *al) | 43 | static int perf_evlist__add_sample(struct perf_evlist *evlist, |
| 44 | struct perf_sample *sample, | ||
| 45 | struct addr_location *al) | ||
| 40 | { | 46 | { |
| 47 | struct perf_evsel *evsel; | ||
| 41 | struct hist_entry *he; | 48 | struct hist_entry *he; |
| 49 | int ret; | ||
| 42 | 50 | ||
| 43 | if (sym_hist_filter != NULL && | 51 | if (sym_hist_filter != NULL && |
| 44 | (al->sym == NULL || strcmp(sym_hist_filter, al->sym->name) != 0)) { | 52 | (al->sym == NULL || strcmp(sym_hist_filter, al->sym->name) != 0)) { |
| @@ -51,25 +59,51 @@ static int hists__add_entry(struct hists *self, struct addr_location *al) | |||
| 51 | return 0; | 59 | return 0; |
| 52 | } | 60 | } |
| 53 | 61 | ||
| 54 | he = __hists__add_entry(self, al, NULL, 1); | 62 | evsel = perf_evlist__id2evsel(evlist, sample->id); |
| 63 | if (evsel == NULL) { | ||
| 64 | /* | ||
| 65 | * FIXME: Propagate this back, but at least we're in a builtin, | ||
| 66 | * where exit() is allowed. ;-) | ||
| 67 | */ | ||
| 68 | ui__warning("Invalid %s file, contains samples with id not in " | ||
| 69 | "its header!\n", input_name); | ||
| 70 | exit_browser(0); | ||
| 71 | exit(1); | ||
| 72 | } | ||
| 73 | |||
| 74 | he = __hists__add_entry(&evsel->hists, al, NULL, 1); | ||
| 55 | if (he == NULL) | 75 | if (he == NULL) |
| 56 | return -ENOMEM; | 76 | return -ENOMEM; |
| 57 | 77 | ||
| 58 | return hist_entry__inc_addr_samples(he, al->addr); | 78 | ret = 0; |
| 79 | if (he->ms.sym != NULL) { | ||
| 80 | struct annotation *notes = symbol__annotation(he->ms.sym); | ||
| 81 | if (notes->src == NULL && | ||
| 82 | symbol__alloc_hist(he->ms.sym, evlist->nr_entries) < 0) | ||
| 83 | return -ENOMEM; | ||
| 84 | |||
| 85 | ret = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); | ||
| 86 | } | ||
| 87 | |||
| 88 | evsel->hists.stats.total_period += sample->period; | ||
| 89 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); | ||
| 90 | return ret; | ||
| 59 | } | 91 | } |
| 60 | 92 | ||
| 61 | static int process_sample_event(event_t *event, struct sample_data *sample, | 93 | static int process_sample_event(union perf_event *event, |
| 94 | struct perf_sample *sample, | ||
| 62 | struct perf_session *session) | 95 | struct perf_session *session) |
| 63 | { | 96 | { |
| 64 | struct addr_location al; | 97 | struct addr_location al; |
| 65 | 98 | ||
| 66 | if (event__preprocess_sample(event, session, &al, sample, NULL) < 0) { | 99 | if (perf_event__preprocess_sample(event, session, &al, sample, |
| 100 | symbol__annotate_init) < 0) { | ||
| 67 | pr_warning("problem processing %d event, skipping it.\n", | 101 | pr_warning("problem processing %d event, skipping it.\n", |
| 68 | event->header.type); | 102 | event->header.type); |
| 69 | return -1; | 103 | return -1; |
| 70 | } | 104 | } |
| 71 | 105 | ||
| 72 | if (!al.filtered && hists__add_entry(&session->hists, &al)) { | 106 | if (!al.filtered && perf_evlist__add_sample(session->evlist, sample, &al)) { |
| 73 | pr_warning("problem incrementing symbol count, " | 107 | pr_warning("problem incrementing symbol count, " |
| 74 | "skipping event\n"); | 108 | "skipping event\n"); |
| 75 | return -1; | 109 | return -1; |
| @@ -78,261 +112,26 @@ static int process_sample_event(event_t *event, struct sample_data *sample, | |||
| 78 | return 0; | 112 | return 0; |
| 79 | } | 113 | } |
| 80 | 114 | ||
| 81 | static int objdump_line__print(struct objdump_line *self, | 115 | static int hist_entry__tty_annotate(struct hist_entry *he, int evidx) |
| 82 | struct list_head *head, | ||
| 83 | struct hist_entry *he, u64 len) | ||
| 84 | { | ||
| 85 | struct symbol *sym = he->ms.sym; | ||
| 86 | static const char *prev_line; | ||
| 87 | static const char *prev_color; | ||
| 88 | |||
| 89 | if (self->offset != -1) { | ||
| 90 | const char *path = NULL; | ||
| 91 | unsigned int hits = 0; | ||
| 92 | double percent = 0.0; | ||
| 93 | const char *color; | ||
| 94 | struct sym_priv *priv = symbol__priv(sym); | ||
| 95 | struct sym_ext *sym_ext = priv->ext; | ||
| 96 | struct sym_hist *h = priv->hist; | ||
| 97 | s64 offset = self->offset; | ||
| 98 | struct objdump_line *next = objdump__get_next_ip_line(head, self); | ||
| 99 | |||
| 100 | while (offset < (s64)len && | ||
| 101 | (next == NULL || offset < next->offset)) { | ||
| 102 | if (sym_ext) { | ||
| 103 | if (path == NULL) | ||
| 104 | path = sym_ext[offset].path; | ||
| 105 | percent += sym_ext[offset].percent; | ||
| 106 | } else | ||
| 107 | hits += h->ip[offset]; | ||
| 108 | |||
| 109 | ++offset; | ||
| 110 | } | ||
| 111 | |||
| 112 | if (sym_ext == NULL && h->sum) | ||
| 113 | percent = 100.0 * hits / h->sum; | ||
| 114 | |||
| 115 | color = get_percent_color(percent); | ||
| 116 | |||
| 117 | /* | ||
| 118 | * Also color the filename and line if needed, with | ||
| 119 | * the same color than the percentage. Don't print it | ||
| 120 | * twice for close colored ip with the same filename:line | ||
| 121 | */ | ||
| 122 | if (path) { | ||
| 123 | if (!prev_line || strcmp(prev_line, path) | ||
| 124 | || color != prev_color) { | ||
| 125 | color_fprintf(stdout, color, " %s", path); | ||
| 126 | prev_line = path; | ||
| 127 | prev_color = color; | ||
| 128 | } | ||
| 129 | } | ||
| 130 | |||
| 131 | color_fprintf(stdout, color, " %7.2f", percent); | ||
| 132 | printf(" : "); | ||
| 133 | color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", self->line); | ||
| 134 | } else { | ||
| 135 | if (!*self->line) | ||
| 136 | printf(" :\n"); | ||
| 137 | else | ||
| 138 | printf(" : %s\n", self->line); | ||
| 139 | } | ||
| 140 | |||
| 141 | return 0; | ||
| 142 | } | ||
| 143 | |||
| 144 | static struct rb_root root_sym_ext; | ||
| 145 | |||
| 146 | static void insert_source_line(struct sym_ext *sym_ext) | ||
| 147 | { | ||
| 148 | struct sym_ext *iter; | ||
| 149 | struct rb_node **p = &root_sym_ext.rb_node; | ||
| 150 | struct rb_node *parent = NULL; | ||
| 151 | |||
| 152 | while (*p != NULL) { | ||
| 153 | parent = *p; | ||
| 154 | iter = rb_entry(parent, struct sym_ext, node); | ||
| 155 | |||
| 156 | if (sym_ext->percent > iter->percent) | ||
| 157 | p = &(*p)->rb_left; | ||
| 158 | else | ||
| 159 | p = &(*p)->rb_right; | ||
| 160 | } | ||
| 161 | |||
| 162 | rb_link_node(&sym_ext->node, parent, p); | ||
| 163 | rb_insert_color(&sym_ext->node, &root_sym_ext); | ||
| 164 | } | ||
| 165 | |||
| 166 | static void free_source_line(struct hist_entry *he, int len) | ||
| 167 | { | ||
| 168 | struct sym_priv *priv = symbol__priv(he->ms.sym); | ||
| 169 | struct sym_ext *sym_ext = priv->ext; | ||
| 170 | int i; | ||
| 171 | |||
| 172 | if (!sym_ext) | ||
| 173 | return; | ||
| 174 | |||
| 175 | for (i = 0; i < len; i++) | ||
| 176 | free(sym_ext[i].path); | ||
| 177 | free(sym_ext); | ||
| 178 | |||
| 179 | priv->ext = NULL; | ||
| 180 | root_sym_ext = RB_ROOT; | ||
| 181 | } | ||
| 182 | |||
| 183 | /* Get the filename:line for the colored entries */ | ||
| 184 | static void | ||
| 185 | get_source_line(struct hist_entry *he, int len, const char *filename) | ||
| 186 | { | ||
| 187 | struct symbol *sym = he->ms.sym; | ||
| 188 | u64 start; | ||
| 189 | int i; | ||
| 190 | char cmd[PATH_MAX * 2]; | ||
| 191 | struct sym_ext *sym_ext; | ||
| 192 | struct sym_priv *priv = symbol__priv(sym); | ||
| 193 | struct sym_hist *h = priv->hist; | ||
| 194 | |||
| 195 | if (!h->sum) | ||
| 196 | return; | ||
| 197 | |||
| 198 | sym_ext = priv->ext = calloc(len, sizeof(struct sym_ext)); | ||
| 199 | if (!priv->ext) | ||
| 200 | return; | ||
| 201 | |||
| 202 | start = he->ms.map->unmap_ip(he->ms.map, sym->start); | ||
| 203 | |||
| 204 | for (i = 0; i < len; i++) { | ||
| 205 | char *path = NULL; | ||
| 206 | size_t line_len; | ||
| 207 | u64 offset; | ||
| 208 | FILE *fp; | ||
| 209 | |||
| 210 | sym_ext[i].percent = 100.0 * h->ip[i] / h->sum; | ||
| 211 | if (sym_ext[i].percent <= 0.5) | ||
| 212 | continue; | ||
| 213 | |||
| 214 | offset = start + i; | ||
| 215 | sprintf(cmd, "addr2line -e %s %016" PRIx64, filename, offset); | ||
| 216 | fp = popen(cmd, "r"); | ||
| 217 | if (!fp) | ||
| 218 | continue; | ||
| 219 | |||
| 220 | if (getline(&path, &line_len, fp) < 0 || !line_len) | ||
| 221 | goto next; | ||
| 222 | |||
| 223 | sym_ext[i].path = malloc(sizeof(char) * line_len + 1); | ||
| 224 | if (!sym_ext[i].path) | ||
| 225 | goto next; | ||
| 226 | |||
| 227 | strcpy(sym_ext[i].path, path); | ||
| 228 | insert_source_line(&sym_ext[i]); | ||
| 229 | |||
| 230 | next: | ||
| 231 | pclose(fp); | ||
| 232 | } | ||
| 233 | } | ||
| 234 | |||
| 235 | static void print_summary(const char *filename) | ||
| 236 | { | ||
| 237 | struct sym_ext *sym_ext; | ||
| 238 | struct rb_node *node; | ||
| 239 | |||
| 240 | printf("\nSorted summary for file %s\n", filename); | ||
| 241 | printf("----------------------------------------------\n\n"); | ||
| 242 | |||
| 243 | if (RB_EMPTY_ROOT(&root_sym_ext)) { | ||
| 244 | printf(" Nothing higher than %1.1f%%\n", MIN_GREEN); | ||
| 245 | return; | ||
| 246 | } | ||
| 247 | |||
| 248 | node = rb_first(&root_sym_ext); | ||
| 249 | while (node) { | ||
| 250 | double percent; | ||
| 251 | const char *color; | ||
| 252 | char *path; | ||
| 253 | |||
| 254 | sym_ext = rb_entry(node, struct sym_ext, node); | ||
| 255 | percent = sym_ext->percent; | ||
| 256 | color = get_percent_color(percent); | ||
| 257 | path = sym_ext->path; | ||
| 258 | |||
| 259 | color_fprintf(stdout, color, " %7.2f %s", percent, path); | ||
| 260 | node = rb_next(node); | ||
| 261 | } | ||
| 262 | } | ||
| 263 | |||
| 264 | static void hist_entry__print_hits(struct hist_entry *self) | ||
| 265 | { | ||
| 266 | struct symbol *sym = self->ms.sym; | ||
| 267 | struct sym_priv *priv = symbol__priv(sym); | ||
| 268 | struct sym_hist *h = priv->hist; | ||
| 269 | u64 len = sym->end - sym->start, offset; | ||
| 270 | |||
| 271 | for (offset = 0; offset < len; ++offset) | ||
| 272 | if (h->ip[offset] != 0) | ||
| 273 | printf("%*" PRIx64 ": %" PRIu64 "\n", BITS_PER_LONG / 2, | ||
| 274 | sym->start + offset, h->ip[offset]); | ||
| 275 | printf("%*s: %" PRIu64 "\n", BITS_PER_LONG / 2, "h->sum", h->sum); | ||
| 276 | } | ||
| 277 | |||
| 278 | static int hist_entry__tty_annotate(struct hist_entry *he) | ||
| 279 | { | 116 | { |
| 280 | struct map *map = he->ms.map; | 117 | return symbol__tty_annotate(he->ms.sym, he->ms.map, evidx, |
| 281 | struct dso *dso = map->dso; | 118 | print_line, full_paths, 0, 0); |
| 282 | struct symbol *sym = he->ms.sym; | ||
| 283 | const char *filename = dso->long_name, *d_filename; | ||
| 284 | u64 len; | ||
| 285 | LIST_HEAD(head); | ||
| 286 | struct objdump_line *pos, *n; | ||
| 287 | |||
| 288 | if (hist_entry__annotate(he, &head, 0) < 0) | ||
| 289 | return -1; | ||
| 290 | |||
| 291 | if (full_paths) | ||
| 292 | d_filename = filename; | ||
| 293 | else | ||
| 294 | d_filename = basename(filename); | ||
| 295 | |||
| 296 | len = sym->end - sym->start; | ||
| 297 | |||
| 298 | if (print_line) { | ||
| 299 | get_source_line(he, len, filename); | ||
| 300 | print_summary(filename); | ||
| 301 | } | ||
| 302 | |||
| 303 | printf("\n\n------------------------------------------------\n"); | ||
| 304 | printf(" Percent | Source code & Disassembly of %s\n", d_filename); | ||
| 305 | printf("------------------------------------------------\n"); | ||
| 306 | |||
| 307 | if (verbose) | ||
| 308 | hist_entry__print_hits(he); | ||
| 309 | |||
| 310 | list_for_each_entry_safe(pos, n, &head, node) { | ||
| 311 | objdump_line__print(pos, &head, he, len); | ||
| 312 | list_del(&pos->node); | ||
| 313 | objdump_line__free(pos); | ||
| 314 | } | ||
| 315 | |||
| 316 | if (print_line) | ||
| 317 | free_source_line(he, len); | ||
| 318 | |||
| 319 | return 0; | ||
| 320 | } | 119 | } |
| 321 | 120 | ||
| 322 | static void hists__find_annotations(struct hists *self) | 121 | static void hists__find_annotations(struct hists *self, int evidx) |
| 323 | { | 122 | { |
| 324 | struct rb_node *nd = rb_first(&self->entries), *next; | 123 | struct rb_node *nd = rb_first(&self->entries), *next; |
| 325 | int key = KEY_RIGHT; | 124 | int key = KEY_RIGHT; |
| 326 | 125 | ||
| 327 | while (nd) { | 126 | while (nd) { |
| 328 | struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); | 127 | struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); |
| 329 | struct sym_priv *priv; | 128 | struct annotation *notes; |
| 330 | 129 | ||
| 331 | if (he->ms.sym == NULL || he->ms.map->dso->annotate_warned) | 130 | if (he->ms.sym == NULL || he->ms.map->dso->annotate_warned) |
| 332 | goto find_next; | 131 | goto find_next; |
| 333 | 132 | ||
| 334 | priv = symbol__priv(he->ms.sym); | 133 | notes = symbol__annotation(he->ms.sym); |
| 335 | if (priv->hist == NULL) { | 134 | if (notes->src == NULL) { |
| 336 | find_next: | 135 | find_next: |
| 337 | if (key == KEY_LEFT) | 136 | if (key == KEY_LEFT) |
| 338 | nd = rb_prev(nd); | 137 | nd = rb_prev(nd); |
| @@ -342,7 +141,7 @@ find_next: | |||
| 342 | } | 141 | } |
| 343 | 142 | ||
| 344 | if (use_browser > 0) { | 143 | if (use_browser > 0) { |
| 345 | key = hist_entry__tui_annotate(he); | 144 | key = hist_entry__tui_annotate(he, evidx); |
| 346 | switch (key) { | 145 | switch (key) { |
| 347 | case KEY_RIGHT: | 146 | case KEY_RIGHT: |
| 348 | next = rb_next(nd); | 147 | next = rb_next(nd); |
| @@ -357,24 +156,24 @@ find_next: | |||
| 357 | if (next != NULL) | 156 | if (next != NULL) |
| 358 | nd = next; | 157 | nd = next; |
| 359 | } else { | 158 | } else { |
| 360 | hist_entry__tty_annotate(he); | 159 | hist_entry__tty_annotate(he, evidx); |
| 361 | nd = rb_next(nd); | 160 | nd = rb_next(nd); |
| 362 | /* | 161 | /* |
| 363 | * Since we have a hist_entry per IP for the same | 162 | * Since we have a hist_entry per IP for the same |
| 364 | * symbol, free he->ms.sym->hist to signal we already | 163 | * symbol, free he->ms.sym->src to signal we already |
| 365 | * processed this symbol. | 164 | * processed this symbol. |
| 366 | */ | 165 | */ |
| 367 | free(priv->hist); | 166 | free(notes->src); |
| 368 | priv->hist = NULL; | 167 | notes->src = NULL; |
| 369 | } | 168 | } |
| 370 | } | 169 | } |
| 371 | } | 170 | } |
| 372 | 171 | ||
| 373 | static struct perf_event_ops event_ops = { | 172 | static struct perf_event_ops event_ops = { |
| 374 | .sample = process_sample_event, | 173 | .sample = process_sample_event, |
| 375 | .mmap = event__process_mmap, | 174 | .mmap = perf_event__process_mmap, |
| 376 | .comm = event__process_comm, | 175 | .comm = perf_event__process_comm, |
| 377 | .fork = event__process_task, | 176 | .fork = perf_event__process_task, |
| 378 | .ordered_samples = true, | 177 | .ordered_samples = true, |
| 379 | .ordering_requires_timestamps = true, | 178 | .ordering_requires_timestamps = true, |
| 380 | }; | 179 | }; |
| @@ -383,6 +182,8 @@ static int __cmd_annotate(void) | |||
| 383 | { | 182 | { |
| 384 | int ret; | 183 | int ret; |
| 385 | struct perf_session *session; | 184 | struct perf_session *session; |
| 185 | struct perf_evsel *pos; | ||
| 186 | u64 total_nr_samples; | ||
| 386 | 187 | ||
| 387 | session = perf_session__new(input_name, O_RDONLY, force, false, &event_ops); | 188 | session = perf_session__new(input_name, O_RDONLY, force, false, &event_ops); |
| 388 | if (session == NULL) | 189 | if (session == NULL) |
| @@ -403,12 +204,36 @@ static int __cmd_annotate(void) | |||
| 403 | if (verbose > 2) | 204 | if (verbose > 2) |
| 404 | perf_session__fprintf_dsos(session, stdout); | 205 | perf_session__fprintf_dsos(session, stdout); |
| 405 | 206 | ||
| 406 | hists__collapse_resort(&session->hists); | 207 | total_nr_samples = 0; |
| 407 | hists__output_resort(&session->hists); | 208 | list_for_each_entry(pos, &session->evlist->entries, node) { |
| 408 | hists__find_annotations(&session->hists); | 209 | struct hists *hists = &pos->hists; |
| 409 | out_delete: | 210 | u32 nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; |
| 410 | perf_session__delete(session); | 211 | |
| 212 | if (nr_samples > 0) { | ||
| 213 | total_nr_samples += nr_samples; | ||
| 214 | hists__collapse_resort(hists); | ||
| 215 | hists__output_resort(hists); | ||
| 216 | hists__find_annotations(hists, pos->idx); | ||
| 217 | } | ||
| 218 | } | ||
| 411 | 219 | ||
| 220 | if (total_nr_samples == 0) { | ||
| 221 | ui__warning("The %s file has no samples!\n", input_name); | ||
| 222 | goto out_delete; | ||
| 223 | } | ||
| 224 | out_delete: | ||
| 225 | /* | ||
| 226 | * Speed up the exit process, for large files this can | ||
| 227 | * take quite a while. | ||
| 228 | * | ||
| 229 | * XXX Enable this when using valgrind or if we ever | ||
| 230 | * librarize this command. | ||
| 231 | * | ||
| 232 | * Also experiment with obstacks to see how much speed | ||
| 233 | * up we'll get here. | ||
| 234 | * | ||
| 235 | * perf_session__delete(session); | ||
| 236 | */ | ||
| 412 | return ret; | 237 | return ret; |
| 413 | } | 238 | } |
| 414 | 239 | ||
| @@ -451,9 +276,9 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __used) | |||
| 451 | else if (use_tui) | 276 | else if (use_tui) |
| 452 | use_browser = 1; | 277 | use_browser = 1; |
| 453 | 278 | ||
| 454 | setup_browser(); | 279 | setup_browser(true); |
| 455 | 280 | ||
| 456 | symbol_conf.priv_size = sizeof(struct sym_priv); | 281 | symbol_conf.priv_size = sizeof(struct annotation); |
| 457 | symbol_conf.try_vmlinux_path = true; | 282 | symbol_conf.try_vmlinux_path = true; |
| 458 | 283 | ||
| 459 | if (symbol__init() < 0) | 284 | if (symbol__init() < 0) |
