Setup VSCode

While working with native code, i.e. C, C++ and RustLang, VS Code is the best IDE, but how to setup intelisense.

We can generate Compbd file from AOSP and include it in our project to proper intellisense.

Steps:

Pre: Generate desired AOSP image beforehand.

Now generate Compdb file using these commands.

Compdb (compile_commands.json) Generator

Soong can generate compdb files. This is intended for use with editing tools such as YouCompleteMe and other libclang based completers.

compdb file generation is enabled via environment variable:

$ export SOONG_GEN_COMPDB=1
$ export SOONG_GEN_COMPDB_DEBUG=1

One can make soong generate a symlink to the compdb file using an environment variable:

$ export SOONG_LINK_COMPDB_TO=$ANDROID_HOST_OUT

You can then trigger an empty build:

$ make nothing

Note that if you build using mm or other limited makes with these environment variables set the compdb will only include files in included modules.

---

Or simply run

SOONG_GEN_COMPDB=1 m nothing

Then open the C/C++ Configuration (ui), go to advanced and set the compile_commands.json path to

out/soong/development/ide/compdb/compile_commands.json

Rescan intellisense

Reset the intellisense database, restart VSCode, and enjoy near-instant intellisense for any C/C++ source file in all of AOSP.

VS Code screenshot