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perf report/top: Make 'e' visible in the help and make it toggle showing callchains

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The 'e' and 'c' hotkeys were present for a long time, but not documented
in the help window, change 'e' to be a toggle so that it gets consistent
with other toggles like '+' and document it in the help window.

Keep 'c' as is for people used to it but don't document, as it is easier
to just use 'e' to show/hide all the callchains for a top level
histogram entry.

Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-pmyi5x34stlqmyu81rci94x9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-12-17 10:39:04 -03:00
parent ea537f22f6
commit e6d6abfc44
1 changed files with 7 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

8
tools/perf/ui/browsers/hists.c
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@ -407,6 +407,11 @@ static bool hist_browser__selection_has_children(struct hist_browser *browser)
return container_of(ms, struct callchain_list, ms)->has_children;
}
static bool hist_browser__he_selection_unfolded(struct hist_browser *browser)
{
return browser->he_selection ? browser->he_selection->unfolded : false;
}
static bool hist_browser__selection_unfolded(struct hist_browser *browser)
{
struct hist_entry *he = browser->he_selection;
@ -727,7 +732,7 @@ static int hist_browser__handle_hotkey(struct hist_browser *browser, bool warn_l
break;
case 'e':
/* Expand the selected entry. */
hist_browser__set_folding_selected(browser, true);
hist_browser__set_folding_selected(browser, !hist_browser__he_selection_unfolded(browser));
break;
case 'H':
browser->show_headers = !browser->show_headers;
@ -2942,6 +2947,7 @@ static int perf_evsel__hists_browse(struct evsel *evsel, int nr_events,
"a Annotate current symbol\n" \
"C Collapse all callchains\n" \
"d Zoom into current DSO\n" \
"e Expand/Collapse main entry callchains\n" \
"E Expand all callchains\n" \
"F Toggle percentage of filtered entries\n" \
"H Display column headers\n" \