[tip: perf/core] perf trace: Enclose all events argument lists with ()

[tip-bot2 for Arnaldo Carvalho de Melo]

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     311baaf93c4b9e6a339722006d1a7c33e4283c0c
Gitweb:        https://git.kernel.org/tip/311baaf93c4b9e6a339722006d1a7c33e4283c0c
Author:        Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate:    Fri, 04 Oct 2019 15:01:30 -03:00
Committer:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitterDate: Mon, 07 Oct 2019 12:22:18 -03:00

perf trace: Enclose all events argument lists with ()

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@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Luis ClÃudio GonÃalves <lclaudio@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Link: https://lkml.kernel.org/n/tip-y4fcej6v6u1m644nbxd2r4pg@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 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 b3fb208..297aeaa 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);