GC and Linux/SPARC?

[Tom Tromey]

Jeff> But then we have to do the same for MIPS, ARM and everything
Jeff> else that can run Linux if we are to be portable to those
Jeff> architectures... yuck.  It seems like a duplication of effort.
Jeff> LinuxThreads already has code for test-and-set on all those
Jeff> architectures.  So does the Linux kernel.

Is the LinuxThreads code exposed to the outside world?
If so it seems like we could get the GC to use it directly.
T