linux-kernel - [PATCH 23/69] perf trace: Enclose all events argument lists with ()

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Message-Id: <20191011200559.7156-24-acme@kernel.org>
Date:   Fri, 11 Oct 2019 17:05:13 -0300
From:   Arnaldo Carvalho de Melo <acme@...nel.org>
To:     Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>
Cc:     Jiri Olsa <jolsa@...nel.org>, Namhyung Kim <namhyung@...nel.org>,
        Clark Williams <williams@...hat.com>,
        linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        Arnaldo Carvalho de Melo <acme@...hat.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Luis Cláudio Gonçalves 
        <lclaudio@...hat.com>
Subject: [PATCH 23/69] perf trace: Enclose all events argument lists with ()

From: Arnaldo Carvalho de Melo <acme@...hat.com>

So that they look a bit like normal strace-like syscall enter+exit
lines.

They will look even more when we switch from using libtraceevent's
tep_print_event() routine in favour of using all the perf beautifiers
used by the strace-like syscall enter+exit lines.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@...hat.com>
Cc: Namhyung Kim <namhyung@...nel.org>
Link: https://lkml.kernel.org/n/tip-y4fcej6v6u1m644nbxd2r4pg@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-trace.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index b3fb208cbd30..297aeaa9f69d 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2450,7 +2450,7 @@ static int trace__event_handler(struct trace *trace, struct evsel *evsel,
 		 */
 	}
 
-	fprintf(trace->output, "%s:", evsel->name);
+	fprintf(trace->output, "%s(", evsel->name);
 
 	if (perf_evsel__is_bpf_output(evsel)) {
 		bpf_output__fprintf(trace, sample);
@@ -2470,7 +2470,7 @@ static int trace__event_handler(struct trace *trace, struct evsel *evsel,
 	}
 
 newline:
-	fprintf(trace->output, "\n");
+	fprintf(trace->output, ")\n");
 
 	if (callchain_ret > 0)
 		trace__fprintf_callchain(trace, sample);
-- 
2.21.0