libfmq: Improve error logging

Bug: 157633304
Test: m fmq_test -j512 && adb sync data && adb shell
/data/nativetest64/fmq_test

Change-Id: Ibb7a5bcc27e2cfd747c546bd707a8d886c1a0875
1 file changed
tree: c5d80ed2ba01c5f7ce6ce12db7e44b12e219da4a
  1. benchmarks/
  2. include/
  3. tests/
  4. Android.bp
  5. EventFlag.cpp
  6. FmqInternal.cpp
  7. OWNERS
  8. PREUPLOAD.cfg