include/elf/
	* mips.h (EF_MIPS_NAN2008): New macro.

	bfd/
	* elfxx-mips.c (_bfd_mips_elf_merge_private_bfd_data): Handle
	EF_MIPS_NAN2008.
	(_bfd_mips_elf_print_private_bfd_data): Likewise.

	binutils/
	* readelf.c (get_machine_flags): Handle EF_MIPS_NAN2008.

	gas/
	* config/tc-mips.c (mips_flag_nan2008): New variable.
	(options): Add OPTION_NAN enum value.
	(md_longopts): Handle it.
	(md_parse_option): Likewise.
	(s_nan): New function.
	(mips_elf_final_processing): Handle EF_MIPS_NAN2008.
	(md_show_usage): Add -mnan.

	* doc/as.texinfo (Overview): Add -mnan.
	* doc/c-mips.texi (MIPS Opts): Document -mnan.
	(MIPS NaN Encodings): New node.  Document .nan directive.
	(MIPS-Dependent): List the new node.

	gas/testsuite/
	* gas/mips/nan-2008-1.d: New test.
	* gas/mips/nan-2008-2.d: New test.
	* gas/mips/nan-2008-3.d: New test.
	* gas/mips/nan-2008-4.d: New test.
	* gas/mips/nan-legacy-1.d: New test.
	* gas/mips/nan-legacy-2.d: New test.
	* gas/mips/nan-legacy-3.d: New test.
	* gas/mips/nan-legacy-4.d: New test.
	* gas/mips/nan-legacy-5.d: New test.
	* gas/mips/nan-error-1.l: New list test.
	* gas/mips/nan-error-2.l: New list test.
	* gas/mips/nan-2008-override.s: New test source.
	* gas/mips/nan-2008.s: New test source.
	* gas/mips/nan-legacy-override.s: New test source.
	* gas/mips/nan-legacy.s: New test source.
	* gas/mips/nan-error-1.s: New test source.
	* gas/mips/nan-error-2.s: New test source.
	* gas/mips/mips.exp: Run the new tests.

	ld/testsuite/
	* ld-mips-elf/nan-2008.d: New test.
	* ld-mips-elf/nan-legacy.d: New test.
	* ld-mips-elf/nan-mixed-1.d: New test.
	* ld-mips-elf/nan-mixed-2.d: New test.
	* ld-mips-elf/nan-2008.s: New test source.
	* ld-mips-elf/nan-legacy.s: New test source.
include/opcode/
	* mips.h: Document MIPS16 "I" opcode.

opcodes/
	* mips16-opc.c (mips16_opcodes): Use "I" for immediate operands
	in macros.

gas/
	* config/tc-mips.c (mips16_ip): Handle "I".
include/opcode/
	* mips.h (mips_operand_type, mips_reg_operand_type): New enums.
	(mips_operand, mips_int_operand, mips_mapped_int_operand)
	(mips_msb_operand, mips_reg_operand, mips_reg_pair_operand)
	(mips_pcrel_operand): New structures.
	(mips_insert_operand, mips_extract_operand, mips_signed_operand)
	(mips_decode_int_operand, mips_decode_pcrel_operand): New functions.
	(decode_mips_operand, decode_micromips_operand): Declare.

opcodes/
	* mips-formats.h: New file.
	* mips-opc.c: Include mips-formats.h.
	(reg_0_map): New static array.
	(decode_mips_operand): New function.
	* micromips-opc.c: Remove <stdio.h> include.  Include mips-formats.h.
	(reg_0_map, reg_28_map, reg_29_map, reg_31_map, reg_m16_map)
	(reg_mn_map, reg_q_map, reg_h_map1, reg_h_map2, int_b_map)
	(int_c_map): New static arrays.
	(decode_micromips_operand): New function.
	* mips-dis.c (micromips_to_32_reg_b_map, micromips_to_32_reg_c_map)
	(micromips_to_32_reg_d_map, micromips_to_32_reg_e_map)
	(micromips_to_32_reg_f_map, micromips_to_32_reg_g_map)
	(micromips_to_32_reg_h_map1, micromips_to_32_reg_h_map2)
	(micromips_to_32_reg_l_map, micromips_to_32_reg_m_map)
	(micromips_to_32_reg_n_map, micromips_to_32_reg_q_map)
	(micromips_imm_b_map, micromips_imm_c_map): Delete.
	(print_reg): New function.
	(mips_print_arg_state): New structure.
	(init_print_arg_state, print_insn_arg): New functions.
	(print_insn_args): Change interface and use mips_operand structures.
	Delete GET_OP_S.  Move GET_OP definition to...
	(print_insn_mips): ...here.  Update the call to print_insn_args.
	(print_insn_micromips): Use print_insn_args.

gas/
	* config/tc-mips.c (validate_mips_insn): Move further up file.
	Add insn_bits and decode_operand arguments.  Use the mips_operand
	fields to work out which bits an operand occupies.  Detect double
	definitions.
	(validate_micromips_insn): Move further up file.  Call into
	validate_mips_insn.
include/opcode/
	* mips.h (mips_operand_type): Add OP_ENTRY_EXIT_LIST and
	OP_SAVE_RESTORE_LIST.
	(decode_mips16_operand): Declare.

opcodes/
	* mips16-opc.c: Include mips-formats.h.
	(reg_0_map, reg_29_map, reg_31_map, reg_m16_map, reg32r_map): New
	static arrays.
	(decode_mips16_operand): New function.
	* mips-dis.c (mips16_to_32_reg_map, mips16_reg_names): Delete.
	(print_insn_arg): Handle OP_ENTRY_EXIT list.
	Abort for OP_SAVE_RESTORE_LIST.
	(print_mips16_insn_arg): Change interface.  Use mips_operand
	structures.  Delete GET_OP_S.  Move GET_OP definition to...
	(print_insn_mips16): ...here.  Call init_print_arg_state.
	Update the call to print_mips16_insn_arg.
	* path.cc (symlink_native): Fix common prefix search.  Enhance comment.
*** empty log message ***
	* include/cygwin/version.h (CYGWIN_VERSION_DLL_MINOR): Bump to 22.
	Remove /dev/mem, /dev/kmem, /dev/port support.
	* Makefile.in (DLL_OFILES): Drop fhandler_mem.o.
	(fhandler_mem_CFLAGS): Remove rule.
	* devices.in (enum fh_devices): Remove FH_MEM, FH_KMEM and FH_PORT.
	* devices.cc: Regenerate.
	* dtable.cc (fh_alloc): Drop handling for FH_MEM, FH_KMEM and FH_PORT.
	* fhandler.h (class fhandler_dev_mem): Remove.
	* fhandler_mem.cc: Remove file.
	* globals.cc (ro_u_pmem): Remove.
	* mmap.cc (fhandler_dev_mem::mmap): Remove.
	(fhandler_dev_mem::munmap): Remove.
	(fhandler_dev_mem::fixup_mmap_after_fork): Remove.
	* new-features.sgml (ov-new1.7.22): New section.  Document dropped
	support for /dev/mem, /dev/kmem, /dev/port.
	* specialnames.xml (pathnames-posixdevices): Drop description of
	/dev/mem, /dev/kmem, /dev/port.
	include/elf/
	* mips.h (Tag_GNU_MIPS_ABI_FP): Remove comment.
	(Val_GNU_MIPS_ABI_FP_ANY, Val_GNU_MIPS_ABI_FP_DOUBLE,
	Val_GNU_MIPS_ABI_FP_SINGLE, Val_GNU_MIPS_ABI_FP_SOFT,
	Val_GNU_MIPS_ABI_FP_64): New enum.

	bfd/
	* elfxx-mips.c (mips_elf_merge_obj_attributes): Replace hardcoded
	magic numbers with enum values.

	binutils/
	* readelf.c (display_mips_gnu_attribute): Replace hardcoded magic
	numbers with enum values.

	gdb/
	* mips-tdep.c (mips_gdbarch_init): Replace hardcoded magic
	numbers with enum values.
Merge branch 'Cygwin' into develop

Conflicts:
	winsup/cygwin/devices.cc
	winsup/cygwin/include/cygwin/version.h