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perf evswitch: Move switch logic to use in other tools

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Now other tools that want switching can use an evswitch for that, just
set it up and add it to the PERF_RECORD_SAMPLE processing function.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: William Cohen <wcohen@redhat.com>
Link: https://lkml.kernel.org/n/tip-b1trj1q97qwfv251l66q3noj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2019-08-15 11:00:11 -03:00
parent d236044272
commit 8829e56fa0
4 changed files with 36 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
tools/perf/builtin-script.c
View File

@ -1807,28 +1807,9 @@ static void process_event(struct perf_script *script,
if (!show_event(sample, evsel, thread, al))
return;
if (script->evswitch.on && script->evswitch.discarding) {
if (script->evswitch.on != evsel)
return;
if (evswitch__discard(&script->evswitch, evsel))
return;
script->evswitch.discarding = false;
if (!script->evswitch.show_on_off_events)
return;
goto print_it;
}
if (script->evswitch.off && !script->evswitch.discarding) {
if (script->evswitch.off != evsel)
goto print_it;
script->evswitch.discarding = true;
if (!script->evswitch.show_on_off_events)
return;
}
print_it:
++es->samples;
perf_sample__fprintf_start(sample, thread, evsel,

1
tools/perf/util/Build
View File

@ -9,6 +9,7 @@ perf-y += event.o
perf-y += evlist.o
perf-y += evsel.o
perf-y += evsel_fprintf.o
perf-y += evswitch.o
perf-y += find_bit.o
perf-y += get_current_dir_name.o
perf-y += kallsyms.o

31
tools/perf/util/evswitch.c Normal file
View File

@ -0,0 +1,31 @@
// SPDX-License-Identifier: GPL-2.0-only
// Copyright (C) 2019, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
#include "evswitch.h"
bool evswitch__discard(struct evswitch *evswitch, struct evsel *evsel)
{
if (evswitch->on && evswitch->discarding) {
if (evswitch->on != evsel)
return true;
evswitch->discarding = false;
if (!evswitch->show_on_off_events)
return true;
return false;
}
if (evswitch->off && !evswitch->discarding) {
if (evswitch->off != evsel)
return false;
evswitch->discarding = true;
if (!evswitch->show_on_off_events)
return true;
}
return false;
}

2
tools/perf/util/evswitch.h
View File

@ -13,4 +13,6 @@ struct evswitch {
bool show_on_off_events;
};
bool evswitch__discard(struct evswitch *evswitch, struct evsel *evsel);
#endif /* __PERF_EVSWITCH_H */