Sensors. Goldfish. So what is

Sensors. Goldfish. So what is

Suddenly I found that there will always be sensors. Goldfish. So generated during compilation. Today I checked it
From Development/tools/emulator/system/Sensors
It looks like it is intended for simulators.
In the same example, some libraries are used by simulators. Don't worry. You can also modify Android. mk to not compile them.

I have been trying to figure out how the upper layer calls the library file compiled by the Hal layer. I tried to change the name of a so file in the/system/lib/HW format, then I found that the corresponding upper-layer application could not be used, so I come to the conclusion that the upper layer needs to match the file name, but today I found that the two so files below can be used.
Sensors. sp8825ea. So
Sensors. sc8825.so
So I am confused again. When I have time, be sure to figure it out.
If you know the answer, reply to me.