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perf script: Add option --show-text-poke-events 

Consistent with other new events, add an option to perf script to
display text poke events and ksymbol events. Both text poke events and
ksymbol events are displayed because some text pokes (e.g. ftrace
trampolines) have corresponding ksymbol events.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20200512121922.8997-15-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
zero-sugar-mainline-defconfig
Adrian Hunter 2020-05-12 15:19:21 +03:00 committed by Arnaldo Carvalho de Melo
parent b22f90aaea
commit 92ecf3a64f
2 changed files with 23 additions and 0 deletions
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4
tools/perf/Documentation/perf-script.txt
View File

@ -322,6 +322,10 @@ OPTIONS
--show-cgroup-events
Display cgroup events i.e. events of type PERF_RECORD_CGROUP.
--show-text-poke-events
Display text poke events i.e. events of type PERF_RECORD_TEXT_POKE and
PERF_RECORD_KSYMBOL.
--demangle::
Demangle symbol names to human readable form. It's enabled by default,
disable with --no-demangle.

19
tools/perf/builtin-script.c
View File

@ -1678,6 +1678,7 @@ struct perf_script {
bool show_round_events;
bool show_bpf_events;
bool show_cgroup_events;
bool show_text_poke_events;
bool allocated;
bool per_event_dump;
bool stitch_lbr;
@ -2329,6 +2330,18 @@ process_bpf_events(struct perf_tool *tool __maybe_unused,
sample->tid);
}
static int process_text_poke_events(struct perf_tool *tool,
union perf_event *event,
struct perf_sample *sample,
struct machine *machine)
{
if (perf_event__process_text_poke(tool, event, sample, machine) < 0)
return -1;
return print_event(tool, event, sample, machine, sample->pid,
sample->tid);
}
static void sig_handler(int sig __maybe_unused)
{
session_done = 1;
@ -2437,6 +2450,10 @@ static int __cmd_script(struct perf_script *script)
script->tool.ksymbol = process_bpf_events;
script->tool.bpf = process_bpf_events;
}
if (script->show_text_poke_events) {
script->tool.ksymbol = process_bpf_events;
script->tool.text_poke = process_text_poke_events;
}
if (perf_script__setup_per_event_dump(script)) {
pr_err("Couldn't create the per event dump files\n");
@ -3473,6 +3490,8 @@ int cmd_script(int argc, const char **argv)
"Show round events (if recorded)"),
OPT_BOOLEAN('\0', "show-bpf-events", &script.show_bpf_events,
"Show bpf related events (if recorded)"),
OPT_BOOLEAN('\0', "show-text-poke-events", &script.show_text_poke_events,
"Show text poke related events (if recorded)"),
OPT_BOOLEAN('\0', "per-event-dump", &script.per_event_dump,
"Dump trace output to files named by the monitored events"),
OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),