or1k: Add relocations for high-signed and low-stores

or1k: Add relocations for high-signed and low-stores

This patch adds the following target relocations:

 - BFD_RELOC_HI16_S		High 16-bit relocation, for used with signed
   asm: ha()			lower.
 - BFD_RELOC_HI16_S_GOTOFF	High 16-bit GOT offset relocation for local
   asm: gotoffha()		symbols, for use with signed lower.
 - BFD_RELOC_OR1K_TLS_IE_AHI16	High 16-bit TLS relocation with initial
   asm: gottpoffha()		executable calculation, for use with signed
				lower.
 - BFD_RELOC_OR1K_TLS_LE_AHI16	High 16-bit TLS relocation for local executable
   asm: tpoffha()		variables, for use with signed lower.

 - BFD_RELOC_OR1K_SLO16		Split lower 16-bit relocation, used with
   asm: lo()			OpenRISC store instructions.
 - BFD_RELOC_OR1K_GOTOFF_SLO16	Split lower 16-bit GOT offset relocation for
   asm: gotofflo()		local symbols, used with OpenRISC store
				instructions.
 - BFD_RELOC_OR1K_TLS_LE_SLO16	Split lower 16-bit relocation for TLS local
   asm: tpofflo()		executable variables, used with OpenRISC store
				instructions.

bfd/ChangeLog:

yyyy-mm-dd  Richard Henderson  <rth@twiddle.net>
	    Stafford Horne  <shorne@gmail.com>

	* bfd-in2.h: Regenerated.
	* elf32-or1k.c (N_ONES): New macro.
	(or1k_elf_howto_table): Fix R_OR1K_PLT26 to complain on overflow.
	Add definitions for R_OR1K_TLS_TPOFF, R_OR1K_TLS_DTPOFF,
	R_OR1K_TLS_DTPMOD, R_OR1K_AHI16, R_OR1K_GOTOFF_AHI16,
	R_OR1K_TLS_IE_AHI16, R_OR1K_TLS_LE_AHI16, R_OR1K_SLO16,
	R_OR1K_GOTOFF_SLO16, R_OR1K_TLS_LE_SLO16.
	(or1k_reloc_map): Add entries for BFD_RELOC_HI16_S,
	BFD_RELOC_LO16_GOTOFF, BFD_RELOC_HI16_GOTOFF, BFD_RELOC_HI16_S_GOTOFF,
	BFD_RELOC_OR1K_TLS_IE_AHI16, BFD_RELOC_OR1K_TLS_LE_AHI16,
	BFD_RELOC_OR1K_SLO16, BFD_RELOC_OR1K_GOTOFF_SLO16,
	BFD_RELOC_OR1K_TLS_LE_SLO16.
	(or1k_reloc_type_lookup): Change search loop to start ad index 0 and
	also check results before returning.
	(or1k_reloc_name_lookup): Simplify loop to use R_OR1K_max as index
	limit.
	(or1k_final_link_relocate): New function.
	(or1k_elf_relocate_section): Add support for new AHI and SLO
	relocations.  Use or1k_final_link_relocate instead of generic
	_bfd_final_link_relocate.
	(or1k_elf_check_relocs): Add support for new AHI and SLO relocations.
	* reloc.c: Add new enums for BFD_RELOC_OR1K_SLO16,
	BFD_RELOC_OR1K_GOTOFF_SLO16, BFD_RELOC_OR1K_TLS_IE_AHI16,
	BFD_RELOC_OR1K_TLS_IE_AHI16, BFD_RELOC_OR1K_TLS_LE_AHI16,
	BFD_RELOC_OR1K_TLS_LE_SLO16.  Remove unused BFD_RELOC_OR1K_GOTOFF_HI16
	and BFD_RELOC_OR1K_GOTOFF_LO16.
	* libbfd.h: Regenerated.

cpu/ChangeLog:

yyyy-mm-dd  Richard Henderson  <rth@twiddle.net>

	* or1k.opc: Add RTYPE_ enum.
	(INVALID_STORE_RELOC): New string.
	(or1k_imm16_relocs): New array array.
	(parse_reloc): New static function that just does the parsing.
	(parse_imm16): New static function for generic parsing.
	(parse_simm16): Change to just call parse_imm16.
	(parse_simm16_split): New function.
	(parse_uimm16): Change to call parse_imm16.
	(parse_uimm16_split): New function.
	* or1korbis.cpu (simm16-split): Change to use new simm16_split.
	(uimm16-split): Change to use new uimm16_split.

gas/ChangeLog:

yyyy-mm-dd  Richard Henderson  <rth@twiddle.net>

	* testsuite/gas/or1k/allinsn.d (l_ha): Add result for ha() relocation.
	* testsuite/gas/or1k/allinsn.s (l_ha): Add test for ha() relocations.
	* testsuite/gas/or1k/allinsn.exp: Renamed to or1k.exp.
	* testsuite/gas/or1k/or1k.exp: Add reloc-2 list test.
	* testsuite/gas/or1k/reloc-1.d: New file.
	* testsuite/gas/or1k/reloc-1.s: New file.
	* testsuite/gas/or1k/reloc-2.l: New file.
	* testsuite/gas/or1k/reloc-2.s: New file.

include/ChangeLog:

yyyy-mm-dd  Richard Henderson  <rth@twiddle.net>

	* elf/or1k.h (elf_or1k_reloc_type): Add R_OR1K_AHI16,
	R_OR1K_GOTOFF_AHI16, R_OR1K_TLS_IE_AHI16, R_OR1K_TLS_LE_AHI16,
	R_OR1K_SLO16, R_OR1K_GOTOFF_SLO16, R_OR1K_TLS_LE_SLO16.

ld/ChangeLog:

yyyy-mm-dd  Richard Henderson  <rth@twiddle.net>

	* testsuite/ld-or1k/offsets1.d: New file.
	* testsuite/ld-or1k/offsets1.s: New file.
	* testsuite/ld-or1k/or1k.exp: New file.

opcodes/ChangeLog:

yyyy-mm-dd  Richard Henderson  <rth@twiddle.net>

	* or1k-asm.c: Regenerate.