I haven't touched it in many years, but: I think (a) it's still possible, per https://chromium.googlesource.com/chromium/src/+/master/docs/component_build.md h

I haven't touched it in many years, but: I think (a) it's still possible, per https://chromium.googlesource.com/chromium/src/+/master/docs/component_build.md https://chromium.googlesource.com/chromium/src/+/master/docs... . (b) Creating new .so files that shadow functions in others is an interesting idea! I think you're implying that the executable wouldn't pick them up for free, which I think is true, but I'm not actually sure. I forget the details of how this works but it might be that you could just play tricks with the order of the files to make them shadow. In practice with a fast linker (I used gold at the time, but I think lld is even faster than gold now) it doesn't matter so much as long as you keep the component libraries small enough. But my info is also nearly a decade out of date now...