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path: root/tools/perf/util/ui/browsers/annotate.c
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Diffstat (limited to 'tools/perf/util/ui/browsers/annotate.c')
-rw-r--r--tools/perf/util/ui/browsers/annotate.c102
1 files changed, 77 insertions, 25 deletions
diff --git a/tools/perf/util/ui/browsers/annotate.c b/tools/perf/util/ui/browsers/annotate.c
index d2156aebd4f..73e78ef38a5 100644
--- a/tools/perf/util/ui/browsers/annotate.c
+++ b/tools/perf/util/ui/browsers/annotate.c
@@ -17,6 +17,7 @@ static void ui__error_window(const char *fmt, ...)
struct annotate_browser {
struct ui_browser b;
struct rb_root entries;
+ struct rb_node *curr_hot;
};
struct objdump_line_rb_node {
@@ -110,12 +111,83 @@ static void objdump__insert_line(struct rb_root *self,
rb_insert_color(&line->rb_node, self);
}
+static void annotate_browser__set_top(struct annotate_browser *self,
+ struct rb_node *nd)
+{
+ struct objdump_line_rb_node *rbpos;
+ struct objdump_line *pos;
+ unsigned back;
+
+ ui_browser__refresh_dimensions(&self->b);
+ back = self->b.height / 2;
+ rbpos = rb_entry(nd, struct objdump_line_rb_node, rb_node);
+ pos = ((struct objdump_line *)rbpos) - 1;
+ self->b.top_idx = self->b.index = rbpos->idx;
+
+ while (self->b.top_idx != 0 && back != 0) {
+ pos = list_entry(pos->node.prev, struct objdump_line, node);
+
+ --self->b.top_idx;
+ --back;
+ }
+
+ self->b.top = pos;
+ self->curr_hot = nd;
+}
+
+static int annotate_browser__run(struct annotate_browser *self,
+ struct newtExitStruct *es)
+{
+ struct rb_node *nd;
+ struct hist_entry *he = self->b.priv;
+
+ if (ui_browser__show(&self->b, he->ms.sym->name) < 0)
+ return -1;
+
+ ui_helpline__fpush("<- or ESC: exit, TAB/shift+TAB: cycle thru samples");
+ newtFormAddHotKey(self->b.form, NEWT_KEY_LEFT);
+
+ nd = self->curr_hot;
+ if (nd) {
+ newtFormAddHotKey(self->b.form, NEWT_KEY_TAB);
+ newtFormAddHotKey(self->b.form, NEWT_KEY_UNTAB);
+ }
+
+ while (1) {
+ ui_browser__run(&self->b, es);
+
+ if (es->reason != NEWT_EXIT_HOTKEY)
+ break;
+
+ switch (es->u.key) {
+ case NEWT_KEY_TAB:
+ nd = rb_prev(nd);
+ if (nd == NULL)
+ nd = rb_last(&self->entries);
+ annotate_browser__set_top(self, nd);
+ break;
+ case NEWT_KEY_UNTAB:
+ nd = rb_next(nd);
+ if (nd == NULL)
+ nd = rb_first(&self->entries);
+ annotate_browser__set_top(self, nd);
+ break;
+ default:
+ goto out;
+ }
+ }
+out:
+ newtFormDestroy(self->b.form);
+ newtPopWindow();
+ ui_helpline__pop();
+ return 0;
+}
+
int hist_entry__tui_annotate(struct hist_entry *self)
{
struct newtExitStruct es;
struct objdump_line *pos, *n;
struct objdump_line_rb_node *rbpos;
- struct rb_node *nd;
LIST_HEAD(head);
struct annotate_browser browser = {
.b = {
@@ -156,35 +228,15 @@ int hist_entry__tui_annotate(struct hist_entry *self)
/*
* Position the browser at the hottest line.
*/
- nd = rb_last(&browser.entries);
- if (nd != NULL) {
- unsigned back;
-
- ui_browser__refresh_dimensions(&browser.b);
- back = browser.b.height / 2;
- rbpos = rb_entry(nd, struct objdump_line_rb_node, rb_node);
- pos = ((struct objdump_line *)rbpos) - 1;
- browser.b.top_idx = browser.b.index = rbpos->idx;
-
- while (browser.b.top_idx != 0 && back != 0) {
- pos = list_entry(pos->node.prev, struct objdump_line, node);
-
- --browser.b.top_idx;
- --back;
- }
-
- browser.b.top = pos;
- }
+ browser.curr_hot = rb_last(&browser.entries);
+ if (browser.curr_hot)
+ annotate_browser__set_top(&browser, browser.curr_hot);
browser.b.width += 18; /* Percentage */
- ui_browser__show(&browser.b, self->ms.sym->name);
- ret = ui_browser__run(&browser.b, &es);
- newtFormDestroy(browser.b.form);
- newtPopWindow();
+ ret = annotate_browser__run(&browser, &es);
list_for_each_entry_safe(pos, n, &head, node) {
list_del(&pos->node);
objdump_line__free(pos);
}
- ui_helpline__pop();
return ret;
}