040000 tree 2cb6248bad4462b36e545253eca0de98a4e41f0e	android
040000 tree f91ffb117f9650d5a54a716a8461fec82a04f74c	darwin
040000 tree 7983995197997e63f5e4457042c4b8180bb4898f	fuchsia
040000 tree f9220029071dc713cfafe559b062201ebffa4fb6	linux
040000 tree aa9e409451184f4ab9bfaa5d1d89abccc485b3d4	posix
040000 tree 380ce5c382b5ceca248acabd012b08633d24576d	win