diff options
| author | Igor Lubashev <ilubashe@akamai.com> | 2019-08-27 04:39:13 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-08-28 23:18:08 +0300 |
| commit | dda1bf8ea78add78739d128a20b555c4a1a19c27 (patch) | |
| tree | f44a3973bdee2b3a771f08e3dcb7f161b5ff1ded /tools/perf/arch/arm/util | |
| parent | e9a6882f267a8105461066e3ea6b4b6b9be1b807 (diff) | |
| download | linux-dda1bf8ea78add78739d128a20b555c4a1a19c27.tar.xz | |
perf tools: Use CAP_SYS_ADMIN with perf_event_paranoid checks
The kernel is using CAP_SYS_ADMIN instead of euid==0 to override
perf_event_paranoid check. Make perf do the same.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org> # coresight part
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: James Morris <jmorris@namei.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1566869956-7154-3-git-send-email-ilubashe@akamai.com
Signed-off-by: Igor Lubashev <ilubashe@akamai.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/arch/arm/util')
| -rw-r--r-- | tools/perf/arch/arm/util/cs-etm.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/arch/arm/util/cs-etm.c b/tools/perf/arch/arm/util/cs-etm.c index a185dab2d903..5d856edc412b 100644 --- a/tools/perf/arch/arm/util/cs-etm.c +++ b/tools/perf/arch/arm/util/cs-etm.c @@ -18,6 +18,7 @@ #include "../../util/record.h" #include "../../util/auxtrace.h" #include "../../util/cpumap.h" +#include "../../util/event.h" #include "../../util/evlist.h" #include "../../util/evsel.h" #include "../../util/pmu.h" @@ -254,7 +255,7 @@ static int cs_etm_recording_options(struct auxtrace_record *itr, struct perf_pmu *cs_etm_pmu = ptr->cs_etm_pmu; struct evsel *evsel, *cs_etm_evsel = NULL; struct perf_cpu_map *cpus = evlist->core.cpus; - bool privileged = (geteuid() == 0 || perf_event_paranoid() < 0); + bool privileged = perf_event_paranoid_check(-1); int err = 0; ptr->evlist = evlist; |