Generate AOSP make build system products graph
The AOSP build system provides a make target called product-graph to generate products graph files.
We can use below command to generate products graph files, products.dot, products.svg, products.pdf in out/ directory.
make product-graph
This is a sample generated sample:

In latest master(2022.11), I found that product-graph doesn’t generate products.pdf and products.svg directly by calling dot command for us. And it prints hint commands to generate products.pdf and products.svg from generated products.dot:
Command to convert to pdf: dot -Tpdf -Nshape=box -o out/products.pdf out/products.dot
Command to convert to svg: dot -Tsvg -Nshape=box -o out/products.svg out/products.dot
And we can run previous commands to generate products.pdf and/or products.svg if need.