* alpha-tdep.c (alpha_heuristic_proc_start)

	* alpha-tdep.c (alpha_heuristic_proc_start)
	(alpha_sigtramp_register_address): Add gdbarch as parameter. Replace
	current_gdbarch by gdbarch.

	(alpha_heuristic_frame_unwind_cache): Use get_frame_arch to get at the
	current architecture by frame_info. Update alpha_heuristic_proc_start
	call.

	(alpha_sigtramp_frame_this_id, alpha_sigtramp_frame_prev_register): Use
	get_frame_arch to get at the current architecture by frame_info. Update
	alpha_sigtramp_register_address call.

	* arm-tdep.c (thumb_scan_prologue): Add gdbarch as parameter and replace
	current_gdbarch by gdbarch. Update caller.
	(convert_to_extended, convert_from_extended): Add endianess parameter
	for comparison. Update caller.
	(arm_extract_return_value, arm_store_return_value): Use
	get_regcache_arch to get at the current	architecture.

	* cris-tdep.c (cris_register_size): Add gdbarch as parameter. Replace
	current_gdbarch by gdbarch. Update caller.
	(cris_gdb_func, move_to_preg_op, none_reg_mode_move_from_preg_op): Add
	gdbarch as parameter. Update caller. Replace current_gdbarch by gdbarch.

	* h8300-tdep.c (E_PSEUDO_CCR_REGNUM, E_PSEUDO_EXR_REGNUM, BINWORD): Add
	gdbarch	as parameter. Update caller.
	(h8300_init_frame_cache): Add gdbarch as parameter. Replace
	current_gdbarch by gdbarch. Update caller.

	* hppa-tdep.c (skip_prologue_hard_way): Add gdbarch as parameter and
	update caller. Replace current_gdbarch by gdbarch.

	* m32c-tdep.c (m32c_skip_trampoline_code): Use get_frame_arch to get at
	the current architecture. Replace current_gdbarch by gdbarch.
	* m68hc11-tdep.c (m68hc11_frame_unwind_cache): Likewise.
	(STACK_CORRECTION, USE_PAGE_REGISTER): Replace M6811_TDEP by its
	expression. Add gdbarch as parameter and replace current_gdbarch with
	it. Update caller.
	(M6811_TDEP): Remove.
	(m68hc11_frame_prev_register): Use get_frame_arch to get at the current
	architecture.
	(m68hc11_scan_prologue): Add gdbarch as parameter. Replace
	current_gdbarch by gdbarch. Update caller.

	* m68k-tdep.c (m68k_analyze_prologue): Add gdbarch as parameter and
	update caller.
	(m68k_analyze_register_saves): Likewise. Also replace current_gdbarch
	by gdbarch.

	* rs6000-tdep.c (skip_prologue): Add gdbarch as parameter and update
	caller. Relace current_gdbarch by gdbarch.
	(altivec_register_p, spe_register_p): Likewise.
	* ppc-tdep.h (altivec_register_p, spe_register_p): Add gdbarch as
	parameter.
	* ppc-linux-nat.c (fetch_register, store_register): Update caller of
	altivec_register_p and spe_register_p.

	* score-tdep.c (score_fetch_inst): Add gdbarch as parameter. Update
	caller. Replace current_gdbarch by gdbarch.
	(score_analyze_prologue): use get_frame_arch to get at the current
	architecture.

	* sparc-tdep.h (sparc_analyze_prologue): Add gdbarch as parameter.
	* sparc-tdep.c (sparc_analyze_prologue): Likewise. Replace
	current_gdbarch by gdbarch. Update caller.
	(sparc_frame_cache): Use get_frame_arch to get at the current
	architecture.
	* sparce64-tdep.c (sparc64_skip_prologue): Update call of
	sparc_analyze_prologue.

	* mn10300-tdep.c (mn10300_dwarf2_reg_to_regnum): Add gdbarch as
	parameter.