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-rw-r--r--tools/perf/builtin-annotate.c351
1 files changed, 88 insertions, 263 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 8879463807e4..695de4b5ae63 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
37static const char *sym_hist_filter; 41static const char *sym_hist_filter;
38 42
39static int hists__add_entry(struct hists *self, struct addr_location *al) 43static 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
61static int process_sample_event(event_t *event, struct sample_data *sample, 93static 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
81static int objdump_line__print(struct objdump_line *self, 115static 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
144static struct rb_root root_sym_ext;
145
146static 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
166static 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 */
184static void
185get_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
235static 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
264static 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
278static 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
322static void hists__find_annotations(struct hists *self) 121static 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) {
336find_next: 135find_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
373static struct perf_event_ops event_ops = { 172static 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;
409out_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 }
224out_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)