Is ppc64 big-endian supported on Linux

Hi,

I've been looking at lldb on ppc64 big-endian, and I noticed that
big-endian binary detection was broken about 2.5 years ago by this
commit: Now a ppc64le binary is correctly detected: · llvm/llvm-project@37b1d7b · GitHub

Even with that fixed, breakpoints on ppc64 big-endian seem to be ignored.
Was ppc64 big-endian ever working on Linux? Is this something that someone wants
to try to support or should we drop the ppc64 big-endian code from the tree entirely?

-Tom