tree db4d58bc4b5a6f4d8113ba0edebb973cf24f9c28
parent 616296359dc8e782ef4455b164dd93c818cd3d3a
author Wiwit Rifa'i <wiwitrifai@google.com> 1692001590 +0800
committer Wiwit Rifa'i <wiwitrifai@google.com> 1697099219 +0800

hwc: enable code coverage if CLANG_COVERAGE=true

This will enable CLANG's source-based code coverage with continuous mode
enabled (profile counter updates are continuously synced to a file).

To set the output directory, we need to define environment variable
LLVM_PROFILE_FILE to like /data/misc/trace/clang-hwc-%20m%c.profraw
in HWC's init (.rc) file.

Bug: 295827160
Test: builds
Change-Id: I88fb597a85819a23491143e716cb08cc6152ff6a