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perf hists browser: Inform how to reset the symbol filter

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When in the hists browser, i.e. in 'perf report' or in 'perf top', it is
possible to press '/' and specify a substring to filter by symbol name.

Clarify how to remove a filter by making the prompt be:

   Please enter the name of symbol you want to see.
   To remove the filter later, press / + ENTER

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-vbq2b0kyufwy6p0ctkfswcoe@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2015-10-12 14:02:29 -03:00
parent 7727a92544
commit 4aa8e454d3
1 changed files with 2 additions and 1 deletions
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3
tools/perf/ui/browsers/hists.c
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@@ -1889,7 +1889,8 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
continue; continue;
case '/': case '/':
if (ui_browser__input_window("Symbol to show", if (ui_browser__input_window("Symbol to show",
"Please enter the name of symbol you want to see", "Please enter the name of symbol you want to see.\n"
"To remove the filter later, press / + ENTER.",
buf, "ENTER: OK, ESC: Cancel", buf, "ENTER: OK, ESC: Cancel",
delay_secs * 2) == K_ENTER) { delay_secs * 2) == K_ENTER) {
hists->symbol_filter_str = *buf ? buf : NULL; hists->symbol_filter_str = *buf ? buf : NULL;