liblogwrap: lock android_fork_execvp

Add a lock around android_fork_execvp to ensure no two threads can
execute it at the same time.

This is to help with http://b/8333626

Change-Id: I75d087a74b58f5b8e878675b301200f54d976fb2
1 file changed
tree: 7fa48cd55036ecf6053170a45c847c408e6bba67
  1. liblog/
  2. logcat/
  3. logwrapper/