diff options
Diffstat (limited to 'tools/perf/builtin-annotate.c')
-rw-r--r-- | tools/perf/builtin-annotate.c | 373 |
1 files changed, 97 insertions, 276 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 1478dc64bf15..7b139e1e7e86 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c | |||
@@ -8,7 +8,6 @@ | |||
8 | #include "builtin.h" | 8 | #include "builtin.h" |
9 | 9 | ||
10 | #include "util/util.h" | 10 | #include "util/util.h" |
11 | |||
12 | #include "util/color.h" | 11 | #include "util/color.h" |
13 | #include <linux/list.h> | 12 | #include <linux/list.h> |
14 | #include "util/cache.h" | 13 | #include "util/cache.h" |
@@ -18,6 +17,9 @@ | |||
18 | #include "perf.h" | 17 | #include "perf.h" |
19 | #include "util/debug.h" | 18 | #include "util/debug.h" |
20 | 19 | ||
20 | #include "util/evlist.h" | ||
21 | #include "util/evsel.h" | ||
22 | #include "util/annotate.h" | ||
21 | #include "util/event.h" | 23 | #include "util/event.h" |
22 | #include "util/parse-options.h" | 24 | #include "util/parse-options.h" |
23 | #include "util/parse-events.h" | 25 | #include "util/parse-events.h" |
@@ -28,7 +30,7 @@ | |||
28 | 30 | ||
29 | static char const *input_name = "perf.data"; | 31 | static char const *input_name = "perf.data"; |
30 | 32 | ||
31 | static bool force; | 33 | static bool force, use_tui, use_stdio; |
32 | 34 | ||
33 | static bool full_paths; | 35 | static bool full_paths; |
34 | 36 | ||
@@ -36,9 +38,13 @@ static bool print_line; | |||
36 | 38 | ||
37 | static const char *sym_hist_filter; | 39 | static const char *sym_hist_filter; |
38 | 40 | ||
39 | static int hists__add_entry(struct hists *self, struct addr_location *al) | 41 | static int perf_evlist__add_sample(struct perf_evlist *evlist, |
42 | struct perf_sample *sample, | ||
43 | struct perf_evsel *evsel, | ||
44 | struct addr_location *al) | ||
40 | { | 45 | { |
41 | struct hist_entry *he; | 46 | struct hist_entry *he; |
47 | int ret; | ||
42 | 48 | ||
43 | if (sym_hist_filter != NULL && | 49 | if (sym_hist_filter != NULL && |
44 | (al->sym == NULL || strcmp(sym_hist_filter, al->sym->name) != 0)) { | 50 | (al->sym == NULL || strcmp(sym_hist_filter, al->sym->name) != 0)) { |
@@ -51,25 +57,41 @@ static int hists__add_entry(struct hists *self, struct addr_location *al) | |||
51 | return 0; | 57 | return 0; |
52 | } | 58 | } |
53 | 59 | ||
54 | he = __hists__add_entry(self, al, NULL, 1); | 60 | he = __hists__add_entry(&evsel->hists, al, NULL, 1); |
55 | if (he == NULL) | 61 | if (he == NULL) |
56 | return -ENOMEM; | 62 | return -ENOMEM; |
57 | 63 | ||
58 | return hist_entry__inc_addr_samples(he, al->addr); | 64 | ret = 0; |
65 | if (he->ms.sym != NULL) { | ||
66 | struct annotation *notes = symbol__annotation(he->ms.sym); | ||
67 | if (notes->src == NULL && | ||
68 | symbol__alloc_hist(he->ms.sym, evlist->nr_entries) < 0) | ||
69 | return -ENOMEM; | ||
70 | |||
71 | ret = hist_entry__inc_addr_samples(he, evsel->idx, al->addr); | ||
72 | } | ||
73 | |||
74 | evsel->hists.stats.total_period += sample->period; | ||
75 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); | ||
76 | return ret; | ||
59 | } | 77 | } |
60 | 78 | ||
61 | static int process_sample_event(event_t *event, struct perf_session *session) | 79 | static int process_sample_event(union perf_event *event, |
80 | struct perf_sample *sample, | ||
81 | struct perf_evsel *evsel, | ||
82 | struct perf_session *session) | ||
62 | { | 83 | { |
63 | struct addr_location al; | 84 | struct addr_location al; |
64 | struct sample_data data; | ||
65 | 85 | ||
66 | if (event__preprocess_sample(event, session, &al, &data, NULL) < 0) { | 86 | if (perf_event__preprocess_sample(event, session, &al, sample, |
87 | symbol__annotate_init) < 0) { | ||
67 | pr_warning("problem processing %d event, skipping it.\n", | 88 | pr_warning("problem processing %d event, skipping it.\n", |
68 | event->header.type); | 89 | event->header.type); |
69 | return -1; | 90 | return -1; |
70 | } | 91 | } |
71 | 92 | ||
72 | if (!al.filtered && hists__add_entry(&session->hists, &al)) { | 93 | if (!al.filtered && |
94 | perf_evlist__add_sample(session->evlist, sample, evsel, &al)) { | ||
73 | pr_warning("problem incrementing symbol count, " | 95 | pr_warning("problem incrementing symbol count, " |
74 | "skipping event\n"); | 96 | "skipping event\n"); |
75 | return -1; | 97 | return -1; |
@@ -78,261 +100,26 @@ static int process_sample_event(event_t *event, struct perf_session *session) | |||
78 | return 0; | 100 | return 0; |
79 | } | 101 | } |
80 | 102 | ||
81 | static int objdump_line__print(struct objdump_line *self, | 103 | 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 | { | 104 | { |
148 | struct sym_ext *iter; | 105 | return symbol__tty_annotate(he->ms.sym, he->ms.map, evidx, |
149 | struct rb_node **p = &root_sym_ext.rb_node; | 106 | print_line, full_paths, 0, 0); |
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 | } | 107 | } |
165 | 108 | ||
166 | static void free_source_line(struct hist_entry *he, int len) | 109 | static void hists__find_annotations(struct hists *self, int evidx) |
167 | { | 110 | { |
168 | struct sym_priv *priv = symbol__priv(he->ms.sym); | 111 | struct rb_node *nd = rb_first(&self->entries), *next; |
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 %016llx", 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("%*Lx: %Lu\n", BITS_PER_LONG / 2, | ||
274 | sym->start + offset, h->ip[offset]); | ||
275 | printf("%*s: %Lu\n", BITS_PER_LONG / 2, "h->sum", h->sum); | ||
276 | } | ||
277 | |||
278 | static int hist_entry__tty_annotate(struct hist_entry *he) | ||
279 | { | ||
280 | struct map *map = he->ms.map; | ||
281 | struct dso *dso = map->dso; | ||
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 | } | ||
321 | |||
322 | static void hists__find_annotations(struct hists *self) | ||
323 | { | ||
324 | struct rb_node *first = rb_first(&self->entries), *nd = first; | ||
325 | int key = KEY_RIGHT; | 112 | int key = KEY_RIGHT; |
326 | 113 | ||
327 | while (nd) { | 114 | while (nd) { |
328 | struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); | 115 | struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node); |
329 | struct sym_priv *priv; | 116 | struct annotation *notes; |
330 | 117 | ||
331 | if (he->ms.sym == NULL || he->ms.map->dso->annotate_warned) | 118 | if (he->ms.sym == NULL || he->ms.map->dso->annotate_warned) |
332 | goto find_next; | 119 | goto find_next; |
333 | 120 | ||
334 | priv = symbol__priv(he->ms.sym); | 121 | notes = symbol__annotation(he->ms.sym); |
335 | if (priv->hist == NULL) { | 122 | if (notes->src == NULL) { |
336 | find_next: | 123 | find_next: |
337 | if (key == KEY_LEFT) | 124 | if (key == KEY_LEFT) |
338 | nd = rb_prev(nd); | 125 | nd = rb_prev(nd); |
@@ -342,48 +129,51 @@ find_next: | |||
342 | } | 129 | } |
343 | 130 | ||
344 | if (use_browser > 0) { | 131 | if (use_browser > 0) { |
345 | key = hist_entry__tui_annotate(he); | 132 | key = hist_entry__tui_annotate(he, evidx); |
346 | if (is_exit_key(key)) | ||
347 | break; | ||
348 | switch (key) { | 133 | switch (key) { |
349 | case KEY_RIGHT: | 134 | case KEY_RIGHT: |
350 | case '\t': | 135 | next = rb_next(nd); |
351 | nd = rb_next(nd); | ||
352 | break; | 136 | break; |
353 | case KEY_LEFT: | 137 | case KEY_LEFT: |
354 | if (nd == first) | 138 | next = rb_prev(nd); |
355 | continue; | ||
356 | nd = rb_prev(nd); | ||
357 | default: | ||
358 | break; | 139 | break; |
140 | default: | ||
141 | return; | ||
359 | } | 142 | } |
143 | |||
144 | if (next != NULL) | ||
145 | nd = next; | ||
360 | } else { | 146 | } else { |
361 | hist_entry__tty_annotate(he); | 147 | hist_entry__tty_annotate(he, evidx); |
362 | nd = rb_next(nd); | 148 | nd = rb_next(nd); |
363 | /* | 149 | /* |
364 | * Since we have a hist_entry per IP for the same | 150 | * Since we have a hist_entry per IP for the same |
365 | * symbol, free he->ms.sym->hist to signal we already | 151 | * symbol, free he->ms.sym->src to signal we already |
366 | * processed this symbol. | 152 | * processed this symbol. |
367 | */ | 153 | */ |
368 | free(priv->hist); | 154 | free(notes->src); |
369 | priv->hist = NULL; | 155 | notes->src = NULL; |
370 | } | 156 | } |
371 | } | 157 | } |
372 | } | 158 | } |
373 | 159 | ||
374 | static struct perf_event_ops event_ops = { | 160 | static struct perf_event_ops event_ops = { |
375 | .sample = process_sample_event, | 161 | .sample = process_sample_event, |
376 | .mmap = event__process_mmap, | 162 | .mmap = perf_event__process_mmap, |
377 | .comm = event__process_comm, | 163 | .comm = perf_event__process_comm, |
378 | .fork = event__process_task, | 164 | .fork = perf_event__process_task, |
165 | .ordered_samples = true, | ||
166 | .ordering_requires_timestamps = true, | ||
379 | }; | 167 | }; |
380 | 168 | ||
381 | static int __cmd_annotate(void) | 169 | static int __cmd_annotate(void) |
382 | { | 170 | { |
383 | int ret; | 171 | int ret; |
384 | struct perf_session *session; | 172 | struct perf_session *session; |
173 | struct perf_evsel *pos; | ||
174 | u64 total_nr_samples; | ||
385 | 175 | ||
386 | session = perf_session__new(input_name, O_RDONLY, force, false); | 176 | session = perf_session__new(input_name, O_RDONLY, force, false, &event_ops); |
387 | if (session == NULL) | 177 | if (session == NULL) |
388 | return -ENOMEM; | 178 | return -ENOMEM; |
389 | 179 | ||
@@ -402,12 +192,36 @@ static int __cmd_annotate(void) | |||
402 | if (verbose > 2) | 192 | if (verbose > 2) |
403 | perf_session__fprintf_dsos(session, stdout); | 193 | perf_session__fprintf_dsos(session, stdout); |
404 | 194 | ||
405 | hists__collapse_resort(&session->hists); | 195 | total_nr_samples = 0; |
406 | hists__output_resort(&session->hists); | 196 | list_for_each_entry(pos, &session->evlist->entries, node) { |
407 | hists__find_annotations(&session->hists); | 197 | struct hists *hists = &pos->hists; |
408 | out_delete: | 198 | u32 nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE]; |
409 | perf_session__delete(session); | 199 | |
200 | if (nr_samples > 0) { | ||
201 | total_nr_samples += nr_samples; | ||
202 | hists__collapse_resort(hists); | ||
203 | hists__output_resort(hists); | ||
204 | hists__find_annotations(hists, pos->idx); | ||
205 | } | ||
206 | } | ||
410 | 207 | ||
208 | if (total_nr_samples == 0) { | ||
209 | ui__warning("The %s file has no samples!\n", input_name); | ||
210 | goto out_delete; | ||
211 | } | ||
212 | out_delete: | ||
213 | /* | ||
214 | * Speed up the exit process, for large files this can | ||
215 | * take quite a while. | ||
216 | * | ||
217 | * XXX Enable this when using valgrind or if we ever | ||
218 | * librarize this command. | ||
219 | * | ||
220 | * Also experiment with obstacks to see how much speed | ||
221 | * up we'll get here. | ||
222 | * | ||
223 | * perf_session__delete(session); | ||
224 | */ | ||
411 | return ret; | 225 | return ret; |
412 | } | 226 | } |
413 | 227 | ||
@@ -428,6 +242,8 @@ static const struct option options[] = { | |||
428 | "be more verbose (show symbol address, etc)"), | 242 | "be more verbose (show symbol address, etc)"), |
429 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, | 243 | OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |
430 | "dump raw trace in ASCII"), | 244 | "dump raw trace in ASCII"), |
245 | OPT_BOOLEAN(0, "tui", &use_tui, "Use the TUI interface"), | ||
246 | OPT_BOOLEAN(0, "stdio", &use_stdio, "Use the stdio interface"), | ||
431 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, | 247 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
432 | "file", "vmlinux pathname"), | 248 | "file", "vmlinux pathname"), |
433 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, | 249 | OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules, |
@@ -443,9 +259,14 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __used) | |||
443 | { | 259 | { |
444 | argc = parse_options(argc, argv, options, annotate_usage, 0); | 260 | argc = parse_options(argc, argv, options, annotate_usage, 0); |
445 | 261 | ||
446 | setup_browser(); | 262 | if (use_stdio) |
263 | use_browser = 0; | ||
264 | else if (use_tui) | ||
265 | use_browser = 1; | ||
266 | |||
267 | setup_browser(true); | ||
447 | 268 | ||
448 | symbol_conf.priv_size = sizeof(struct sym_priv); | 269 | symbol_conf.priv_size = sizeof(struct annotation); |
449 | symbol_conf.try_vmlinux_path = true; | 270 | symbol_conf.try_vmlinux_path = true; |
450 | 271 | ||
451 | if (symbol__init() < 0) | 272 | if (symbol__init() < 0) |