commit 1e52e63238ec0a034501dc1ba5b42495fa554a38
author Hridya Valsaraju <hridya@google.com> Wed Apr 21 16:30:20 2021 -0700
committer Hridya Valsaraju <hridya@google.com> Thu Apr 22 15:10:46 2021 -0700
tree 1b5d16593cc9282ef664e444e762a9d109a2fd92
parent 91ce32adb93003d915bc17d06ba8370165bb053e

Let the default Atrace HAL support /sys/kernel/tracing

With this change, atrace HAL will look for tracefs in
/sys/kernel/tracing first and /sys/kernel/debug/tracing second.

Test: systrace
Bug: 185427606
Change-Id: Iccc5af92db222dc422a527c14b1f2fb7bc4e7746

atrace/1.0/default/AtraceDevice.h

diff --git a/atrace/1.0/default/AtraceDevice.h b/atrace/1.0/default/AtraceDevice.h
index e700f89..ab87c65 100644
--- a/atrace/1.0/default/AtraceDevice.h
+++ b/atrace/1.0/default/AtraceDevice.h
@@ -36,12 +36,16 @@
 using ::android::hardware::Void;
 
 struct AtraceDevice : public IAtraceDevice {
+    AtraceDevice();
     // Methods from ::android::hardware::atrace::V1_0::IAtraceDevice follow.
     Return<void> listCategories(listCategories_cb _hidl_cb) override;
     Return<::android::hardware::atrace::V1_0::Status> enableCategories(
         const hidl_vec<hidl_string>& categories) override;
     Return<::android::hardware::atrace::V1_0::Status> disableAllCategories() override;
 
+  private:
+    std::string tracefs_event_root_;
+
     // Methods from ::android::hidl::base::V1_0::IBase follow.
 };