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authorandroid-build-team Robot <android-build-team-robot@google.com>2020-04-08 02:07:06 +0000
committerandroid-build-team Robot <android-build-team-robot@google.com>2020-04-08 02:07:06 +0000
commit24ca8d91d1164b7a36c159020c56139e00ce13a9 (patch)
tree6b6c42e543d0d9a33efdb555a234a7dd1425e4d9
parent2ee54cd7d0ba56ffef5d12b40dcc93b5355ab051 (diff)
parent80cd87a60222701044f423f1f8e0fef8672a851c (diff)
downloadextras-24ca8d91d1164b7a36c159020c56139e00ce13a9.tar.gz
Snap for 6374421 from 80cd87a60222701044f423f1f8e0fef8672a851c to rvc-d1-release
Change-Id: I47fda596e7f8d31e2587671cc7a38677bf0ca157
-rw-r--r--simpleperf/environment.cpp17
1 files changed, 7 insertions, 10 deletions
diff --git a/simpleperf/environment.cpp b/simpleperf/environment.cpp
index e16e496f..5b2fcaa8 100644
--- a/simpleperf/environment.cpp
+++ b/simpleperf/environment.cpp
@@ -299,18 +299,15 @@ bool CanRecordRawData() {
if (IsRoot()) {
return true;
}
- int value;
- if (!ReadPerfEventParanoid(&value) || value > -1) {
- return false;
- }
#if defined(__ANDROID__)
- // If perf_event_open() is controlled by selinux, simpleperf can't record tracepoint raw data
- // unless running as root.
- if (android::base::GetProperty("sys.init.perf_lsm_hooks", "") == "1") {
- return false;
- }
+ // Android R uses selinux to control perf_event_open. Whether raw data can be recorded is hard
+ // to check unless we really try it. And probably there is no need to record raw data in non-root
+ // users.
+ return false;
+#else
+ int value;
+ return ReadPerfEventParanoid(&value) && value == -1;
#endif
- return true;
}
static const char* GetLimitLevelDescription(int limit_level) {