* mips-stub.c: Re-debugged a breakpoint problem, zbreak target
address was a char * which caused the target instruction to not
be fully copied, so the zbreak logic corrupted the original
instruction and didn't insert a valid break instruction.
* mips-stub.c: Debugged & tweaked the gdb command processing,
zbreak stuff, breakpoint and step code. Implemented 'T' command
support and debugged remote gdb support w/ the Mongoose bsp.
Added the memory segment support.
* memlimits.h: Disabled all contents in favor of memory sement
support. This file could probably go away.
* rtems-stub-glue.c (rtems_gdb_index_to_stub_id()): New routine.
rtems_gdb_stub_get_register_from_context(): Implemented MIPS version.
rtems_gdb_stub_get_offsets(): Implemented MIPS version.
* README: Updated.
* Significant modifications including adding thread support, the 'X'
command, and reorganizing so that target CPU independent routines
could be reused.
* gdb_if.h: Added numerous prototypes.
* mips-stub.c: Added thread support as well as 'X' command.
Also noticed that the 'P' command was from the mips protocol.
* rtems-stub-glue.c: New file. This file contains all generic
support which should be able to be reused on another target CPU.
