[PATCH 02/16] perf top: Set target.system_wide

[Arnaldo Carvalho de Melo]

From: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>

Check if neither of --pid, --tid or --uid was specified and if so, set
system_wide appropriately.

Namhyung's patch would make using any of the above target specifiers
emit a warning in perf_target__validate, since it would see
target.system_wide set and one of the others as well.

So set system_wide after validation.

Suggested-by: David Ahern <dsahern@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Mike Galbraith <efault@xxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-6e4zrji1uw0rinfyoitl0wi4@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/builtin-top.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 2a0ec09..e40f86e 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1258,6 +1258,10 @@ int cmd_top(int argc, const char **argv, const char *prefix __used)
 	if (top.target.uid_str != NULL && top.target.uid == UINT_MAX - 1)
 		goto out_delete_evlist;
 
+	if (top.target.tid == 0 && top.target.pid == 0 &&
+	    top.target.uid_str == NULL)
+		top.target.system_wide = true;
+
 	if (perf_evlist__create_maps(top.evlist, &top.target) < 0)
 		usage_with_options(top_usage, options);
 
-- 
1.7.9.2.358.g22243

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