[PATCH] Add ELF support to gas VAX target

[Jason R Thorpe <thorpej at wasabisystems dot com>]

These are Matt Thomas's gas changes to VAX ELF.  Test cases will
be added in a future commit.

Included here also are small changes which make the vax-*-netbsd* a.out
target work.

Committed to trunk.

2002-06-08  Matt Thomas  <matt@3am-software.com>

	* configure.in (vax-*-netbsdelf*, vax-*-netbsdaout*)
	(vax-*-netbsd*): New targets.
	* configure: Regenerate.
	* config/aout_gnu.h (enum machine_type): Add M_VAX4K_NETBSD.
	* config/tc-vax.c: Add support for ELF and PIC.
	(flag_want_pic): New flag.
	(float_cons): Fix prototype.
	(md_apply_fix3): Adjust for BFD_ASSEMBLER.
	(md_assemble): Introduce a new is_absolute local, and use it
	rather than repeating the test.  Make fatal errors actually
	fatal by using as_fatal as appropriate.  Adjust for BFD_ASSEMBLER.
	Add support for ELF.  Add support for PIC.
	(md_convert_frag): Adjust for BFD_ASSEMBLER.
	(tc_aout_fix_to_chars): Only include if OBJ_AOUT and not
	BFD_ASSEMBLER.
	(vax_reg_parse): Make the % register prefix mandatory for ELF,
	optional for a.out, and not allowed for VMS.  Adjust all callers.
	(md_create_short_jump): Add ATTRIBUTE_UNUSED to unused arguments.
	(md_create_long_jump): Likewise.
	(md_undefined_symbol): Likewise.
	(md_section_align): Likewise.
	(md_shortopts): Allow -k and -K for ELF.
	(md_parse_option): Set flag_want_pic if -k or -K.
	(tc_headers_hook): New function if OBJ_AOUT and not BFD_ASSEMBLER.
	(tc_gen_reloc): New function if BFD_ASSEMBLER.
	* config/tc-vax.h (tc_headers_hook): Remove.
	(TARGET_FORMAT): Set according to object format and target
	environment.
	(BFD_ARCH, TARGET_ARCH): Define.
	(NO_RELOC): Adjust for BFD_ASSEMBLER.
	(TC_RELOC_RTSYM_LOC_FIXUP, TC_FIX_ADJUSTABLE)
	(tc_fix_adjustable): Define if BFD_ASSEMBLER.
	* config/vax-inst.h (VAX_JSB, VAX_CALLS, VAX_CALLG): Define.

-- 
        -- Jason R. Thorpe <thorpej@wasabisystems.com>

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