"Xref AOSP" reads like a terse command from the scaffolding of large software projects — three syllables that point toward a problem every engineer and maintainer confronts: connecting pieces in a sprawling, interdependent codebase so humans can find meaning and change with confidence.
This is invaluable for understanding why a line of code was added. Click the commit hash to see the entire change in context.
cd ~/aosp xref -f . --recursive --output ./xref_db
AOSP generates massive amounts of code (AIDL, protobuf, R.java). This code is often not in your index. Solution: Build the code first ( make ), then explicitly index the out/ directory. Warning: This doubles the index size but is essential for xref-ing R.id.button .