[PATCH, POINTER] Let gas support mips64

[Thiemo Seufer]

Hi All,

This patch adds support for mips64 to gas. Testcases are not provided for
64bit case because of the necessary bfd and binutils changes (which aren't
done in a acceptable way yet).

btw:
At least for configuration mips64-linux, current CVS fails the
'make check' in gas for test 'MIPS ELF reloc 3'. The patch does not
change this behaviour.


Thiemo


2001-06-18  Thiemo Seufer <seufer@csv.ica.uni-stuttgart.de>

	/gas/ChangeLog
	* config/tc-mips.h (MAX_GPREL_OFFSET): Changed from the first invalid
	value to the maximum value.
	* config/tc-mips.c (USES_32BIT_REGS): Define.
	(USES_64BIT_ADDRESSES): Define.
	(S_EX_*): Declare.
	(append_insn): Add handling of mips64 relocs.
	(macro_build): Likewise. Replace numeric constants by defines. Move
	insertion of immediate constants in case 'u' to append_insn().
	(load_register): Change register width check to use USES_32BIT_REGS.
	Fix handling of sign bit in 64bit constants.
	(load_address): Add parameters required to handle 64bit addresses.
	Add handling of 64bit addresses. Change register width check to use
	USES_32BIT_REGS. Change check for MAX_GPREL_OFFSET to fit the new
	value. Formatting.
	(macro): Change register width check to use USES_32BIT_REGS.
	Formatting. Typos. Add handling of 64bit addresses. Some code cleanup.
	Change check for MAX_GPREL_OFFSET to fit the new value.
	(macro2): Formatting. Change register width check to use
	USES_32BIT_REGS. Warn on used $at in M_UL[DW] case. Change calls to
	load_address().	Mark M_USD_A as double value.
	(mips16_macro): Formatting.
	(mips_ip): Replace numeric constants by defines. Change register width
	check to use USES_32BIT_REGS. Use new return values of
	my_getSmallExpression() instead of characters. Add mips64 relocation
	handling.
	(LP): Remove.
	(RP): Remove.
	(my_getSmallExpression): Rewritten to allow arbitrary upper/lowercase,
	return more useful values and support mips64 relocations.
	(md_parse_option): Use TE_TMIPS conditional as in other places.
	(md_apply_fix): Preliminary support for mips64 relocations.
	Fix bad JMP argument generation.
	(s_cprestore): Change register width check to use USES_32BIT_REGS.
	(s_cpadd): Likewise.
	(md_estimate_size_before_relax): Code cleanup.
	(md_obj_end): Remove ugly `' in message string. :-)
	(s_mips_end): Remove unused variables.
	(s_mips_ent): Remove ugly `' in message string.


Because of it's size (82689), the actual patch is provided at
http://www.csv.ica.uni-stuttgart.de/homes/ths/linux-mips/cygnus-gas-mips64.diff