Shrinking the kernel with link-time garbage collection

One "mainstream" (aka not embedded) use might be those of us running coreboot. Some laptops have pretty limited flash, and there's not enough room for a Linux payload *and* another toy or two. So anything that might get the kernel down to the point where it all fits is nice.

That said, "mainstream" might be a stretch. I mean, there may be dozens of us. But still... "There are dozens of us! Dozens!" ;)