* mips-tdep.c (fp_register_arg_p): Add gdbarch as paramter.
(mips_n32n64_push_dummy_call, mips_o64_return_value)
(mips_eabi_push_dummy_call): Update call to fp_register_arg_p.
(MIPS_FPU_TYPE): Add gdbarch as parameter and replace current_gdbarch.
(fp_register_arg_p, mips_dump_tdep, show_mipsfpu_command)
(mips_n32n64_fp_arg_chunk_p): Update caller.
(mips_n32n64_fp_arg_chunk_p): Add gdbarch as paramter.
(mips_n32n64_push_dummy_call): Update caller.
(MIPS_LAST_ARG_REGNUM): Add gdbarch as parameter and replace
current_gdbarch.
(mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call)
(mips_o32_push_dummy_call, mips_o64_push_dummy_call): Update caller.
(MIPS_LAST_FP_ARG_REGNUM): Add gdbarch as parameter and replace
current_gdbarch.
(mips_eabi_push_dummy_call, mips_o32_push_dummy_call)
(mips_o64_push_dummy_call): Update caller.
(MIPS_EABI): Add gdbarch as parameter and replace current_gdbarch.
(fp_register_arg_p, mips_dump_tdep): Update caller.
(set_reg_offset): Add gdbarch as parameter and replace current_gdbarch.
(mips16_scan_prologue, mips32_scan_prologue): Update caller.
(reset_saved_regs): Make static. Add gdbarch as parameter. Replace
current_gdbarch.
(mips32_scan_prologue): Update caller.
(heuristic_proc_start): Add gdbarch as parameter. Replace
current_gdbarch.
(mips_insn16_frame_cache, mips_insn32_frame_cache): Update caller.
* mipsnbsd-nat.c (mipsnbsd_fetch_inferior_registers)
(mipsnbsd_store_inferior_registers): Use get_regcache_arch to get at
the current architecture. Update call to getregs_supplies.
(getregs_supplies): Add gdbarch as parameter and replace
current_gdbarch.
* mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Use get_frame_arch to
get at the current architecture. Update call to NBSD_MIPS_JB_OFFSET and
NBSD_MIPS_JB_ELEMENT_SIZE.
(NBSD_MIPS_JB_ELEMENT_SIZE, NBSD_MIPS_JB_OFFSET): Add gdbarch and
replace current_gdbarch.
* remote-mips.c (mips_map_regno): Add gdbarch as parameter and replace
current_gdbarch.
(mips_fetch_registers, mips_store_registers): Update call
to mips_map_regno.
(mips_load): Use get_regcache_arch to get at the current_architecture
and replace current_gdbarch.