* dbxread.c (read_dbx_symntab): Avoid coredump on malformed file.
* printcmd.c (print_formatted): Flush output before disassembly.
* xm-mips.h: Update KERNEL_U_ADDR for new scheme. Cleanup a bit.
the program might be running in another process, but only for
systems with this brain death (#ifdef ONE_PROCESS_WRITETEXT).
* xm-hp300bsd.h, xm-mips.h, xm-vax.h: Define it.