diff options
Diffstat (limited to 'tools/perf/util/ui/browsers/annotate.c')
-rw-r--r-- | tools/perf/util/ui/browsers/annotate.c | 302 |
1 files changed, 302 insertions, 0 deletions
diff --git a/tools/perf/util/ui/browsers/annotate.c b/tools/perf/util/ui/browsers/annotate.c new file mode 100644 index 00000000000..0229723aceb --- /dev/null +++ b/tools/perf/util/ui/browsers/annotate.c | |||
@@ -0,0 +1,302 @@ | |||
1 | #include "../browser.h" | ||
2 | #include "../helpline.h" | ||
3 | #include "../libslang.h" | ||
4 | #include "../../annotate.h" | ||
5 | #include "../../hist.h" | ||
6 | #include "../../sort.h" | ||
7 | #include "../../symbol.h" | ||
8 | #include <pthread.h> | ||
9 | |||
10 | static void ui__error_window(const char *fmt, ...) | ||
11 | { | ||
12 | va_list ap; | ||
13 | |||
14 | va_start(ap, fmt); | ||
15 | newtWinMessagev((char *)"Error", (char *)"Ok", (char *)fmt, ap); | ||
16 | va_end(ap); | ||
17 | } | ||
18 | |||
19 | struct annotate_browser { | ||
20 | struct ui_browser b; | ||
21 | struct rb_root entries; | ||
22 | struct rb_node *curr_hot; | ||
23 | }; | ||
24 | |||
25 | struct objdump_line_rb_node { | ||
26 | struct rb_node rb_node; | ||
27 | double percent; | ||
28 | u32 idx; | ||
29 | }; | ||
30 | |||
31 | static inline | ||
32 | struct objdump_line_rb_node *objdump_line__rb(struct objdump_line *self) | ||
33 | { | ||
34 | return (struct objdump_line_rb_node *)(self + 1); | ||
35 | } | ||
36 | |||
37 | static void annotate_browser__write(struct ui_browser *self, void *entry, int row) | ||
38 | { | ||
39 | struct objdump_line *ol = rb_entry(entry, struct objdump_line, node); | ||
40 | bool current_entry = ui_browser__is_current_entry(self, row); | ||
41 | int width = self->width; | ||
42 | |||
43 | if (ol->offset != -1) { | ||
44 | struct objdump_line_rb_node *olrb = objdump_line__rb(ol); | ||
45 | ui_browser__set_percent_color(self, olrb->percent, current_entry); | ||
46 | slsmg_printf(" %7.2f ", olrb->percent); | ||
47 | } else { | ||
48 | ui_browser__set_percent_color(self, 0, current_entry); | ||
49 | slsmg_write_nstring(" ", 9); | ||
50 | } | ||
51 | |||
52 | SLsmg_write_char(':'); | ||
53 | slsmg_write_nstring(" ", 8); | ||
54 | if (!*ol->line) | ||
55 | slsmg_write_nstring(" ", width - 18); | ||
56 | else | ||
57 | slsmg_write_nstring(ol->line, width - 18); | ||
58 | |||
59 | if (!current_entry) | ||
60 | ui_browser__set_color(self, HE_COLORSET_CODE); | ||
61 | } | ||
62 | |||
63 | static double objdump_line__calc_percent(struct objdump_line *self, | ||
64 | struct symbol *sym, int evidx) | ||
65 | { | ||
66 | double percent = 0.0; | ||
67 | |||
68 | if (self->offset != -1) { | ||
69 | int len = sym->end - sym->start; | ||
70 | unsigned int hits = 0; | ||
71 | struct annotation *notes = symbol__annotation(sym); | ||
72 | struct source_line *src_line = notes->src->lines; | ||
73 | struct sym_hist *h = annotation__histogram(notes, evidx); | ||
74 | s64 offset = self->offset; | ||
75 | struct objdump_line *next; | ||
76 | |||
77 | next = objdump__get_next_ip_line(¬es->src->source, self); | ||
78 | while (offset < (s64)len && | ||
79 | (next == NULL || offset < next->offset)) { | ||
80 | if (src_line) { | ||
81 | percent += src_line[offset].percent; | ||
82 | } else | ||
83 | hits += h->addr[offset]; | ||
84 | |||
85 | ++offset; | ||
86 | } | ||
87 | /* | ||
88 | * If the percentage wasn't already calculated in | ||
89 | * symbol__get_source_line, do it now: | ||
90 | */ | ||
91 | if (src_line == NULL && h->sum) | ||
92 | percent = 100.0 * hits / h->sum; | ||
93 | } | ||
94 | |||
95 | return percent; | ||
96 | } | ||
97 | |||
98 | static void objdump__insert_line(struct rb_root *self, | ||
99 | struct objdump_line_rb_node *line) | ||
100 | { | ||
101 | struct rb_node **p = &self->rb_node; | ||
102 | struct rb_node *parent = NULL; | ||
103 | struct objdump_line_rb_node *l; | ||
104 | |||
105 | while (*p != NULL) { | ||
106 | parent = *p; | ||
107 | l = rb_entry(parent, struct objdump_line_rb_node, rb_node); | ||
108 | if (line->percent < l->percent) | ||
109 | p = &(*p)->rb_left; | ||
110 | else | ||
111 | p = &(*p)->rb_right; | ||
112 | } | ||
113 | rb_link_node(&line->rb_node, parent, p); | ||
114 | rb_insert_color(&line->rb_node, self); | ||
115 | } | ||
116 | |||
117 | static void annotate_browser__set_top(struct annotate_browser *self, | ||
118 | struct rb_node *nd) | ||
119 | { | ||
120 | struct objdump_line_rb_node *rbpos; | ||
121 | struct objdump_line *pos; | ||
122 | unsigned back; | ||
123 | |||
124 | ui_browser__refresh_dimensions(&self->b); | ||
125 | back = self->b.height / 2; | ||
126 | rbpos = rb_entry(nd, struct objdump_line_rb_node, rb_node); | ||
127 | pos = ((struct objdump_line *)rbpos) - 1; | ||
128 | self->b.top_idx = self->b.index = rbpos->idx; | ||
129 | |||
130 | while (self->b.top_idx != 0 && back != 0) { | ||
131 | pos = list_entry(pos->node.prev, struct objdump_line, node); | ||
132 | |||
133 | --self->b.top_idx; | ||
134 | --back; | ||
135 | } | ||
136 | |||
137 | self->b.top = pos; | ||
138 | self->curr_hot = nd; | ||
139 | } | ||
140 | |||
141 | static void annotate_browser__calc_percent(struct annotate_browser *browser, | ||
142 | int evidx) | ||
143 | { | ||
144 | struct symbol *sym = browser->b.priv; | ||
145 | struct annotation *notes = symbol__annotation(sym); | ||
146 | struct objdump_line *pos; | ||
147 | |||
148 | browser->entries = RB_ROOT; | ||
149 | |||
150 | pthread_mutex_lock(¬es->lock); | ||
151 | |||
152 | list_for_each_entry(pos, ¬es->src->source, node) { | ||
153 | struct objdump_line_rb_node *rbpos = objdump_line__rb(pos); | ||
154 | rbpos->percent = objdump_line__calc_percent(pos, sym, evidx); | ||
155 | if (rbpos->percent < 0.01) { | ||
156 | RB_CLEAR_NODE(&rbpos->rb_node); | ||
157 | continue; | ||
158 | } | ||
159 | objdump__insert_line(&browser->entries, rbpos); | ||
160 | } | ||
161 | pthread_mutex_unlock(¬es->lock); | ||
162 | |||
163 | browser->curr_hot = rb_last(&browser->entries); | ||
164 | } | ||
165 | |||
166 | static int annotate_browser__run(struct annotate_browser *self, int evidx, | ||
167 | int refresh) | ||
168 | { | ||
169 | struct rb_node *nd = NULL; | ||
170 | struct symbol *sym = self->b.priv; | ||
171 | /* | ||
172 | * RIGHT To allow builtin-annotate to cycle thru multiple symbols by | ||
173 | * examining the exit key for this function. | ||
174 | */ | ||
175 | int exit_keys[] = { 'H', NEWT_KEY_TAB, NEWT_KEY_UNTAB, | ||
176 | NEWT_KEY_RIGHT, 0 }; | ||
177 | int key; | ||
178 | |||
179 | if (ui_browser__show(&self->b, sym->name, | ||
180 | "<-, -> or ESC: exit, TAB/shift+TAB: " | ||
181 | "cycle hottest lines, H: Hottest") < 0) | ||
182 | return -1; | ||
183 | |||
184 | ui_browser__add_exit_keys(&self->b, exit_keys); | ||
185 | annotate_browser__calc_percent(self, evidx); | ||
186 | |||
187 | if (self->curr_hot) | ||
188 | annotate_browser__set_top(self, self->curr_hot); | ||
189 | |||
190 | nd = self->curr_hot; | ||
191 | |||
192 | if (refresh != 0) | ||
193 | newtFormSetTimer(self->b.form, refresh); | ||
194 | |||
195 | while (1) { | ||
196 | key = ui_browser__run(&self->b); | ||
197 | |||
198 | if (refresh != 0) { | ||
199 | annotate_browser__calc_percent(self, evidx); | ||
200 | /* | ||
201 | * Current line focus got out of the list of most active | ||
202 | * lines, NULL it so that if TAB|UNTAB is pressed, we | ||
203 | * move to curr_hot (current hottest line). | ||
204 | */ | ||
205 | if (nd != NULL && RB_EMPTY_NODE(nd)) | ||
206 | nd = NULL; | ||
207 | } | ||
208 | |||
209 | switch (key) { | ||
210 | case -1: | ||
211 | /* | ||
212 | * FIXME we need to check if it was | ||
213 | * es.reason == NEWT_EXIT_TIMER | ||
214 | */ | ||
215 | if (refresh != 0) | ||
216 | symbol__annotate_decay_histogram(sym, evidx); | ||
217 | continue; | ||
218 | case NEWT_KEY_TAB: | ||
219 | if (nd != NULL) { | ||
220 | nd = rb_prev(nd); | ||
221 | if (nd == NULL) | ||
222 | nd = rb_last(&self->entries); | ||
223 | } else | ||
224 | nd = self->curr_hot; | ||
225 | break; | ||
226 | case NEWT_KEY_UNTAB: | ||
227 | if (nd != NULL) | ||
228 | nd = rb_next(nd); | ||
229 | if (nd == NULL) | ||
230 | nd = rb_first(&self->entries); | ||
231 | else | ||
232 | nd = self->curr_hot; | ||
233 | break; | ||
234 | case 'H': | ||
235 | nd = self->curr_hot; | ||
236 | break; | ||
237 | default: | ||
238 | goto out; | ||
239 | } | ||
240 | |||
241 | if (nd != NULL) | ||
242 | annotate_browser__set_top(self, nd); | ||
243 | } | ||
244 | out: | ||
245 | ui_browser__hide(&self->b); | ||
246 | return key; | ||
247 | } | ||
248 | |||
249 | int hist_entry__tui_annotate(struct hist_entry *he, int evidx) | ||
250 | { | ||
251 | return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx, 0); | ||
252 | } | ||
253 | |||
254 | int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx, | ||
255 | int refresh) | ||
256 | { | ||
257 | struct objdump_line *pos, *n; | ||
258 | struct annotation *notes; | ||
259 | struct annotate_browser browser = { | ||
260 | .b = { | ||
261 | .refresh = ui_browser__list_head_refresh, | ||
262 | .seek = ui_browser__list_head_seek, | ||
263 | .write = annotate_browser__write, | ||
264 | .priv = sym, | ||
265 | }, | ||
266 | }; | ||
267 | int ret; | ||
268 | |||
269 | if (sym == NULL) | ||
270 | return -1; | ||
271 | |||
272 | if (map->dso->annotate_warned) | ||
273 | return -1; | ||
274 | |||
275 | if (symbol__annotate(sym, map, sizeof(struct objdump_line_rb_node)) < 0) { | ||
276 | ui__error_window(ui_helpline__last_msg); | ||
277 | return -1; | ||
278 | } | ||
279 | |||
280 | ui_helpline__push("Press <- or ESC to exit"); | ||
281 | |||
282 | notes = symbol__annotation(sym); | ||
283 | |||
284 | list_for_each_entry(pos, ¬es->src->source, node) { | ||
285 | struct objdump_line_rb_node *rbpos; | ||
286 | size_t line_len = strlen(pos->line); | ||
287 | |||
288 | if (browser.b.width < line_len) | ||
289 | browser.b.width = line_len; | ||
290 | rbpos = objdump_line__rb(pos); | ||
291 | rbpos->idx = browser.b.nr_entries++; | ||
292 | } | ||
293 | |||
294 | browser.b.entries = ¬es->src->source, | ||
295 | browser.b.width += 18; /* Percentage */ | ||
296 | ret = annotate_browser__run(&browser, evidx, refresh); | ||
297 | list_for_each_entry_safe(pos, n, ¬es->src->source, node) { | ||
298 | list_del(&pos->node); | ||
299 | objdump_line__free(pos); | ||
300 | } | ||
301 | return ret; | ||
302 | } | ||