This is LLDB version of https://cgit.freebsd.org/ports/tree/devel/gdb/files/kgdb/arm-fbsd-kern.c. This enables selecting arm and reading registers from PCB structure on core dump and live kernel debugging while trapframe unwinding support will be implemented in future. Test files using core dump from arm will be implemented once other kernel debugging improvements are done. --------- Signed-off-by: Minsoo Choo <minsoochoo0122@proton.me>