[tip:perf/core] perf tools: Add CAP_SYSLOG define for older systems

[tip-bot for Arnaldo Carvalho de Melo]

Commit-ID:  083c1359b0e03867a8c7effd21d4c0be3639f336
Gitweb:     https://git.kernel.org/tip/083c1359b0e03867a8c7effd21d4c0be3639f336
Author:     Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
AuthorDate: Tue, 13 Aug 2019 11:38:19 -0300
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 14 Aug 2019 10:59:59 -0300

perf tools: Add CAP_SYSLOG define for older systems

Some of the systems I test don't have that define, provide it
conditionally since we'll use it in the kptr_restrict checks in the next
patch.

Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: Alexey Budankov <alexey.budankov@xxxxxxxxxxxxxxx>
Cc: Igor Lubashev <ilubashe@xxxxxxxxxx>
Cc: James Morris <jmorris@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Suzuki Poulouse <suzuki.poulose@xxxxxxx>
Link: https://lkml.kernel.org/n/tip-dcize2v6jjab7tds5ngz97dk@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/cap.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/perf/util/cap.h b/tools/perf/util/cap.h
index 10af94e473da..051dc590ceee 100644
--- a/tools/perf/util/cap.h
+++ b/tools/perf/util/cap.h
@@ -24,4 +24,9 @@ static inline bool perf_cap__capable(int cap __maybe_unused)
 
 #endif /* HAVE_LIBCAP_SUPPORT */
 
+/* For older systems */
+#ifndef CAP_SYSLOG
+#define CAP_SYSLOG	34
+#endif
+
 #endif /* __PERF_CAP_H */