From dda1bf8ea78add78739d128a20b555c4a1a19c27 Mon Sep 17 00:00:00 2001 From: Igor Lubashev Date: Mon, 26 Aug 2019 21:39:13 -0400 Subject: 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 Acked-by: Jiri Olsa Tested-by: Mathieu Poirier Reviewed-by: Mathieu Poirier # coresight part Cc: Alexander Shishkin Cc: Alexey Budankov Cc: James Morris Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Suzuki Poulouse 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 Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/arm64/util/arm-spe.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'tools/perf/arch/arm64') diff --git a/tools/perf/arch/arm64/util/arm-spe.c b/tools/perf/arch/arm64/util/arm-spe.c index cdd5c0c84183..c7b38f09260f 100644 --- a/tools/perf/arch/arm64/util/arm-spe.c +++ b/tools/perf/arch/arm64/util/arm-spe.c @@ -12,6 +12,7 @@ #include #include "../../util/cpumap.h" +#include "../../util/event.h" #include "../../util/evsel.h" #include "../../util/evlist.h" #include "../../util/session.h" @@ -67,7 +68,7 @@ static int arm_spe_recording_options(struct auxtrace_record *itr, container_of(itr, struct arm_spe_recording, itr); struct perf_pmu *arm_spe_pmu = sper->arm_spe_pmu; struct evsel *evsel, *arm_spe_evsel = NULL; - bool privileged = geteuid() == 0 || perf_event_paranoid() < 0; + bool privileged = perf_event_paranoid_check(-1); struct evsel *tracking_evsel; int err; -- cgit v1.2.3