Xref Aosp Link
The basic usage involves specifying what you're looking for:
xref aosp <what you're looking for>
For example, if you're looking for references to a specific function named executeTransaction, you would use:
xref aosp executeTransaction
When you get hundreds of reference results, use the filter sidebar on the left: xref aosp
For example, to find all native (C++) callers of android::IBinder::transact, filter the path to *.cpp and *.h.
While OpenGrok is great for web-based exploration, most engineers need xref inside their editor. Here is how to emulate xref AOSP in modern IDEs. The basic usage involves specifying what you're looking
OpenGrok is the de facto standard for cross-referencing large codebases, widely used in the Java ecosystem and by internal teams at Google and Sun Microsystems before it. It is a fast, usable source code search and cross-reference engine.
Paper: “Analyzing Inter-Application Communication in Android” (M. Nauman et al., 2011) For example, if you're looking for references to
Paper: “TaintDroid: An Information-Flow Tracking System for Realtime Privacy Monitoring on Smartphones” (Enck et al., OSDI 2010)