* config.gcc (tm_file): Add elfos.h and avr/elf.h for 
	avr-*-* and avr-*-rtems* targets.
	* config/avr/elf.h: New file.
	(ASM_OUTPUT_BEFORE_CASE_LABEL): Define.
	(TARGET_ASM_SELECT_SECTION): Define.
	(INIT_SECTION_ASM_OP): Undefine.
	(FINI_SECTION_ASM_OP): Undefine.
	(READONLY_DATA_SECTION_ASM_OP): Undefine.
	(PCC_BITFIELD_TYPE_MATTERS): Undefine.
	(TARGET_HAVE_SWITCHABLE_BSS_SECTIONS): Undefine.
	* config/avr/avr.h:
	(PREFERRED_DEBUGGING_TYPE): Move to elf.h.
	(TARGET_ASM_NAMED_SECTION): Move to elf.h.
	(MAX_OFILE_ALIGNMENT): Move to elf.h.
	(STRING_LIMIT): Move to elf.h.
	(ASM_DECLARE_FUNCTION_NAME): Move to elf.h.
	(ASM_DECLARE_OBJECT_NAME): Remove.
	(ESCAPES): Remove.
	(ASM_OUTPUT_SKIP): Remove.
	(DWARF2_DEBUGGING_INFO): Remove.
	(OBJECT_FORMAT_ELF): Remove.
	(USER_LABEL_PREFIX): Remove.
	(ASM_OUTPUT_EXTERNAL): Remove.
	(ASM_OUTPUT_ASCII): Remove.
	(TYPE_ASM_OP): Remove.
	(SIZE_ASM_OP): Remove.
	(WEAK_ASM_OP): Remove.
	(STRING_ASM_OP): Remove.
	(SET_ASM_OP): Remove.
	(ASM_WEAKEN_LABEL): Remove.
	(TYPE_OPERAND_FMT): Remove.
	(ASM_DECLARE_FUNCTION_SIZE): Remove.
	(ASM_FINISH_DECLARE_OBJECT): Remove.
	(NO_DOLLAR_IN_LABEL): Remove.
	(ASM_GENERATE_INTERNAL_LABEL): Remove.
	(ASM_OUTPUT_CASE_LABEL): Remove.
	* config/avr/avr.c (avr_asm_output_aligned_decl_common): Use
	ASM_OUTPUT_ALIGNED_LOCAL, ASM_OUTPUT_ALIGNED_COMMON.
	(gas_output_ascii): Remove.
	(gas_output_limited_string): Remove.
	(TARGET_ASM_FILE_START_FILE_DIRECTIVE): Remove.
	* config/avr/avr-protos.h
	(gas_output_ascii): Remove prototye.
	(gas_output_limited_string): Remove prototype.

From-SVN: r175575