Is there some sort of ASLR protection on Android?

问题:

I want to know if someone could access libraries with function addresses that would be the same from one instance of the program to the other?

回答1:

The address space layout will be pretty consistent from run to run on the same device. A lot of the major system libraries are preloaded by zygote, and so inherited as shared mappings by the children it forks off to differentiate into applications. I suppose remapping them at the virtual memory level would be possible, but would incur a sort of dynamic-re-linking penalty and would be fairly tricky to implement.