defined, define as 0.
(FIX_CALL_DUMMY): Rewrite to remove presumption that host and
target are similar.
* config/mips/tm-idt.h (TARGET_BYTE_ORDER_SELECTABLE): Define.
* config/mips/tm-idtl.h (TARGET_BYTE_ORDER_SELECTABLE): Define.
* config/mips/tm-idt64.h (TARGET_BYTE_ORDER_SELECTABLE): Define.
(BREAKPOINT): Remove definition.
* config/mips/tm-idtl64.h (TARGET_BYTE_ORDER_SELECTABLE): Define.
(BREAKPOINT): Remove definition.
* config/mips/tm-mips64.h (GDB_TARGET_IS_MIPS64): Define with a
value of 1, rather than without a value.
* config/mips/tm-bigmips64.h (GDB_TARGET_IS_MIPS64): Likewise.
New functions.
(mips_store_word): Change calling convention to return errors, and
to provide old contents if the caller wants it.
(mips_xfer_memory): Deal with errors from mips_store_word.
* config/mips/tm-idt.h, config/mips/tm-idtl.h: Remove BREAKPOINT
define now that remote-mips.c doesn't use BREAKPOINT.
* config/mips/idtl.mt: Use tm-idtl.h instead of tm-mips.h.
* config/mipos/tm-idt.h, config/mips/tm-idtl.h: New files; use
different BREAKPOINT value for IDT.
