[tip:perf/core] perf stat: Move 'unit_width' to 'struct perf_stat_config'

[tip-bot for Jiri Olsa]

Commit-ID:  df4f7b4d4b1e61e6b16ac2e3760be46bac86e4f4
Gitweb:     https://git.kernel.org/tip/df4f7b4d4b1e61e6b16ac2e3760be46bac86e4f4
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Thu, 30 Aug 2018 08:32:32 +0200
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Thu, 30 Aug 2018 15:52:23 -0300

perf stat: Move 'unit_width' to 'struct perf_stat_config'

Move the static 'unit_width' variable to 'struct perf_stat_config',
so it can be passed around and used outside the 'perf stat' command.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Andi Kleen <andi@xxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/20180830063252.23729-24-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-stat.c | 11 ++++++-----
 tools/perf/util/stat.h    |  1 +
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 397cb4f28d7f..24171aa6c41f 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -161,7 +161,6 @@ static bool			group				= false;
 static const char		*pre_cmd			= NULL;
 static const char		*post_cmd			= NULL;
 static bool			sync_run			= false;
-static unsigned int		unit_width			= 4; /* strlen("unit") */
 static bool			forever				= false;
 static bool			force_metric_only		= false;
 static bool			no_merge			= false;
@@ -200,6 +199,7 @@ static volatile int done = 0;
 static struct perf_stat_config stat_config = {
 	.aggr_mode	= AGGR_GLOBAL,
 	.scale		= true,
+	.unit_width	= 4, /* strlen("unit") */
 };
 
 static bool is_duration_time(struct perf_evsel *evsel)
@@ -524,8 +524,8 @@ try_again:
 		counter->supported = true;
 
 		l = strlen(counter->unit);
-		if (l > unit_width)
-			unit_width = l;
+		if (l > stat_config.unit_width)
+			stat_config.unit_width = l;
 
 		if (perf_evsel__should_store_id(counter) &&
 		    perf_evsel__store_ids(counter, evsel_list))
@@ -963,7 +963,7 @@ static void abs_printout(struct perf_stat_config *config,
 
 	if (evsel->unit)
 		fprintf(output, "%-*s%s",
-			config->csv_output ? 0 : unit_width,
+			config->csv_output ? 0 : config->unit_width,
 			evsel->unit, config->csv_sep);
 
 	fprintf(output, "%-*s", config->csv_output ? 0 : 25, perf_evsel__name(evsel));
@@ -1056,7 +1056,7 @@ static void printout(struct perf_stat_config *config, int id, int nr,
 		}
 
 		fprintf(config->output, "%-*s%s",
-			config->csv_output ? 0 : unit_width,
+			config->csv_output ? 0 : config->unit_width,
 			counter->unit, config->csv_sep);
 
 		fprintf(config->output, "%*s",
@@ -1542,6 +1542,7 @@ static void print_interval(struct perf_stat_config *config,
 			   char *prefix, struct timespec *ts)
 {
 	bool metric_only = config->metric_only;
+	unsigned int unit_width = config->unit_width;
 	FILE *output = config->output;
 	static int num_print_interval;
 
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index da838182b99c..2dc66e0ba4b8 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -98,6 +98,7 @@ struct perf_stat_config {
 	unsigned int		 interval;
 	unsigned int		 timeout;
 	unsigned int		 initial_delay;
+	unsigned int		 unit_width;
 	int			 times;
 	struct runtime_stat	*stats;
 	int			 stats_num;