* elf32-ppc.c (R_PPC_RELAX32): New relocation.
(ppc_elf_install_value): New function.
(ppc_elf_sort_rela): Remove.
(ppc_elf_relax_section): Rewrite. Remove old relaxation
and replace with out of range branch stubs.
(ppc_elf_relocate_section): Handle R_PPC_RELAX32.
2003-07-28 Eric Christopher <echristo@redhat.com>
* ppc.h (R_PPC_RELAX32): New. Fake relocation.
gcc:
* config/sh/sh.h (EXTRA_SPECS): Add subtarget_asm_relax_spec and
subtarget_asm_isa_spec.
(SUBTARGET_ASM_RELAX_SPEC, SUBTARGET_ASM_ISA_SPEC): Define.
(ASM_SPEC): Define as SH_ASM_SPEC.
(SH_ASM_SPEC): New; take the role of ASM_SPEC, but safe from svr4.h.
Use subtarget_asm_relax_spec and subtarget_asm_isa_spec.
* config/sh/elf.h (ASM_SPEC): Use SH_ASM_SPEC.
(SUBTARGET_ASM_ISA_SPEC): Undef / define.
gcc/testsuite:
gcc.dg/sh-relax.c: New test.
include/elf:
* sh.h (EF_SH_MERGE_MACH): Make sure SH2E & SH3/SH3E merge to SH3E,
and SH2E & SH4 merge to SH4, not SH2E.
gas:
* config/tc-sh.c (sh_dsp): Replace with preset_target_arch.
(md_begin): Use preset_target_arch.
(md_longopts): Make isa option unconditional.
(md_parse_option): Make OPTION_DSP and OPTION_ISA sh4 / any
set preset_target_arch.
(md_apply_fix3): If BFD_ASSEMBLER, adjust SWITCH_TABLE fixups
by -S_GET_VALUE (fixP->fx_subsy).
(tc_gen_reloc): For SWITCH_TABLE fixups, the symbol is fixp->fx_subsy,
and the addend is 0.
Adjust addend of R_SH_IND12W relocations by fixp->fx_offset - 4.
* config/tc-sh.h (TC_FORCE_RELOCATION_SUB_LOCAL): Define.
bfd:
elf32-sh.c (sh_elf_howto_tab): Make R_SH_IND12W into an ordinary
relocation (no special function), and make it non-partial_inplace.
(sh_elf_relax_section): When creating a bsr, use a consistent value
no matter if the symbol is extern or not; set addend to -4.
Don't swap load / non-load instructions for SH4.
(sh_elf_relax_delete_bytes): In R_SH_IND12W case, check the offset
rather than if the symbol is external to determine if adjusting the
offset makes sense. Adjust the addend too if appropriate.
(sh_elf_relocate_section): In R_SH_IND12W, don't fiddle with the
relocation.
2002-12-30 Chris Demetriou <cgd@broadcom.com>
* aoutx.h (NAME(aout,machine_type)): Add bfd_mach_mipsisa32r2 case.
* archures.c (bfd_mach_mipsisa32r2): New define.
* bfd-in2.h: Regenerate.
* cpu-mips.c (I_mipsisa32r2): New enum value.
(arch_info_struct): Add entry for I_mipsisa32r2.
* elfxx-mips.c (elf_mips_isa, _bfd_elf_mips_mach)
(_bfd_mips_elf_print_private_bfd_data): Handle E_MIPS_ARCH_32R2.
(_bfd_mips_elf_final_write_processing): Add
bfd_mach_mipsisa32r2 case.
(_bfd_mips_elf_merge_private_bfd_data): Handle merging of
binaries marked as using MIPS32 Release 2.
[ binutils/ChangeLog ]
2002-12-30 Chris Demetriou <cgd@broadcom.com>
* doc/binutils.texi (objdump): Note MIPS HWR (Hardware Register)
changes in MIPS -M options.
[ gas/ChangeLog ]
2002-12-30 Chris Demetriou <cgd@broadcom.com>
* configure.in: Recognize mipsisa32r2, mipsisa32r2el, and
CPU variants.
* configure: Regenerate.
* config/tc-mips.c (ISA_HAS_DROR, ISA_HAS_ROR): New defines.
(macro_build): Handle "K" operand.
(macro2): Use ISA_HAS_DROR and ISA_HAS_ROR in the places where
CPU_HAS_DROR and CPU_HAS_ROR are currently used.
(mips_ip): New variable "lastpos", and implement "+A", "+B",
and "+C" operands for MIPS32 Release 2 ins/ext instructions.
Implement "K" operand for MIPS32 Release 2 rdhwr instruction.
(validate_mips_insn): Implement "+" as a way to extend the
allowed operands, and implement "K", "+A", "+B", and "+C"
operands.
(OPTION_MIPS32R2): New define.
(md_longopts): Add entry for OPTION_MIPS32R2.
(OPTION_ELF_BASE): Adjust to accomodate OPTIONS_MIPS32R2.
(md_parse_option): Handle OPTION_MIPS32R2.
(s_mipsset): Reimplement handling of ".set mipsN" options
and add support for ".set mips32r2".
(mips_cpu_info_table): Add entry for "mips32r2" (MIPS32 Release 2).
(md_show_usage): Document "-mips32r2" option.
* doc/as.texinfo: Document "-mips32r2" option.
* doc/c-mips.texi: Likewise.
[ gas/testsuite/ChangeLog ]
2002-12-30 Chris Demetriou <cgd@broadcom.com>
* gas/mips/cp0-names-mips32r2.d: New test.
* gas/mips/hwr-names-mips32r2.d: New test.
* gas/mips/hwr-names-numeric.d: New test.
* gas/mips/hwr-names.s: New test source file.
* gas/mips/mips32r2.d: New test.
* gas/mips/mips32r2.s: New test source file.
* gas/mips/mips32r2-ill.l: New test.
* gas/mips/mips32r2-ill.s: New test source file.
* gas/mips/mips.exp: Add mips32r2 architecture data array
entry. Run new tests mentioned above.
[ include/elf/ChangeLog ]
2002-12-30 Chris Demetriou <cgd@broadcom.com>
* mips.h (E_MIPS_ARCH_32R2): New define.
[ include/opcode/ChangeLog ]
2002-12-30 Chris Demetriou <cgd@broadcom.com>
* mips.h: Document "+" as the start of two-character operand
type names, and add new "K", "+A", "+B", and "+C" operand types.
(OP_MASK_INSMSB, OP_SH_INSMSB, OP_MASK_EXTMSB)
(OP_SH_EXTMSB, INSN_ISA32R2, ISA_MIPS32R2, CPU_MIPS32R2): New
defines.
[ opcodes/ChangeLog ]
2002-12-30 Chris Demetriou <cgd@broadcom.com>
* mips-dis.c (mips_cp0_names_mips3264r2, mips_hwr_names_numeric)
(mips_hwr_names_mips3264r2): New arrays.
(mips_arch_choice): New "hwr_names" member.
(mips_arch_choices): Adjust for structure change, and add a new
entry for "mips32r2" ISA.
(mips_hwr_names): New variable.
(set_default_mips_dis_options): Set mips_hwr_names.
(parse_mips_dis_option): New "hwr-names" option which sets
mips_hwr_names, and adjust "reg-names=ARCH" to set mips_hwr_names.
(print_insn_arg): Change return type to "int"
and use that to indicate number of characters consumed.
Add support for "+" operand extension character, "+A", "+B",
"+C", and "K" operands.
(print_insn_mips): Adjust for changes to print_insn_arg.
(print_mips_disassembler_options): Adjust for "hwr-names"
addition and "reg-names" change.
* mips-opc (I33): New define (shorthand for INSN_ISA32R2).
(mips_builtin_opcodes): Note that "nop" and "ssnop" are special
forms of "sll". Add new MIPS32 Release 2 instructions: ehb,
di, ei, ext, ins, jr.hb, jalr.hb, mfhc1, mfhc2, mthc1, mthc2,
rdhwr, rdpgpr, seb, seh, synci, wrpgpr, wsbh.
Note that hardware rotate instructions (ror, rorv) can be
used on MIPS32 Release 2, and add the official mnemonics
for them (rotr, rotrv) and the similar "rotl" mnemonic for
left-rotate.
EF_M68HC11_ABI): Define for ABI specification.
(STO_M68HC12_FAR, STO_M68HC12_INTERRUPT): Symbol flags for
linker and debugger.
(R_M68HC11_24, R_M68HC11_LO16, R_M68HC11_PAGE): New relocs.
(R_M68HC11_RL_JUMP, R_M68HC11_RL_GROUP): New reloc for linker
relaxation.
2002-07-01 Matt Thomas <matt@3am-software.com>
* Rename EF_* to EF_VAX_*.
bfd:
2002-07-01 Matt Thomas <matt@3am-software.com>
* elf32-vax.c (elf32_vax_print_private_bfd_data): Change EF_*
to EF_VAX_*.
binutils:
2002-07-01 Matt Thomas <matt@3am-software.com>
* readelf.c: Include "elf/vax.h".
(guess_is_rela): Move EM_VAX from unknown to RELA case.
(dump_relocations): Handle VAX relocations.
(get_machine_flags): Handle VAX machine flags.
2002-02-13 Matt Fredette <fredette@netbsd.org>
* elf32-m68k.c (elf32_m68k_print_private_bfd_data): Recognize
EF_M68000.
bintuls:
2002-02-13 Matt Fredette <fredette@netbsd.org>
* readelf.c (get_machine_flags): Recognize EF_M68000.
gas:
2002-02-13 Matt Fredette <fredette@netbsd.org>
* config/tc-m68k.c (md_show_usage): No longer display a
hard-coded "68020" for the default CPU, instead display the
canonical name of the true, configured default CPU.
(m68k_elf_final_processing): Mark objects for sub-68020
CPUs with the new EF_M68000 flag.
include/elf:
2002-02-13 Matt Fredette <fredette@netbsd.org>
* m68k.h (EF_M68000): Define.
* common.h: Update copyright years.
(NT_NETBSDCORE_PROCINFO): Define.
(NT_NETBSDCORE_FIRSTMACH): Define.
bfd:
* elf.c: Update copyright years.
(elfcore_grok_netbsd_note): Use NT_NETBSDCORE_PROCINFO
and NT_NETBSDCORE_FIRSTMACH. Improve a comment.
bintuils:
* readelf.c (get_netbsd_elfcore_note_type): Use
NT_NETBSDCORE_PROCINFO and NT_NETBSDCORE_FIRSTMACH.
include/elf/ChangeLog
* external.h (Elf_External_Sym_Shndx): Declare.
* internal.h (struct elf_internal_sym <st_shndx>): Make it an
unsigned int.
* common.h (SHN_BAD): Define.
bfd/ChangeLog
* configure.in: Bump bfd version.
* configure: Regenerate.
* elf-bfd.h (elf_size_info <swap_symbol_out>): Add shndx param.
(bfd_elf32_swap_symbol_in): Likewise.
(bfd_elf32_swap_symbol_out): Likewise.
(bfd_elf64_swap_symbol_in): Likewise.
(bfd_elf64_swap_symbol_out): Likewise.
(elf_reloc_cookie): Add locsym_shndx field. Make locsyms a PTR.
(elf_obj_tdata): Add num_elf_sections, symtab_shndx_hdr and
symtab_shndx_section.
(elf_numsections): Define.
(elf_symtab_shndx): Define.
* elf.c (setup_group): Use elf_numsections rather than header e_shnum.
(bfd_elf_find_section): Likewise.
(bfd_section_from_elf_index): Likewise.
(bfd_section_from_shdr): Likewise. Handle SHT_SYMTAB_SHNDX.
(bfd_section_from_r_symndx): Read symbol shndx extension, and
translate st_shndx for > SHN_HIRESERVE.
(assign_section_numbers): Skip reserved sections. Assign
symtab_shndx_section and elf_numsections. Exclude reserved
sections from e_shnum. Set up symtab_shndx_hdr.
(_bfd_elf_compute_section_file_positions): Handle symtab_shndx_hdr.
(map_sections_to_segments): Don't map eh_frame_hdr unless required.
(assign_file_positions_except_relocs): Use elf_numsections rather
than header e_shnum. Skip reserved sections and symtab_shndx_section.
(prep_headers): Set name for symtab_shndx_hdr.
(_bfd_elf_assign_file_positions_for_relocs): Use elf_numsections.
(_bfd_elf_write_object_contents): Likewise. Skip reserved sections.
(_bfd_elf_section_from_bfd_section): Check bfd_{abs,com,und}_section
first. Use elf_section_data if available. Use elf_numsections.
Start scan at index 1.
(copy_private_bfd_data ): Comment fixes.
(MAP_ONESYMTAB): Define above SHN_HIOS.
(MAP_DYNSYMTAB): Likewise.
(MAP_STRTAB): Likewise.
(MAP_SHSTRTAB): Likewise.
(MAP_SYM_SHNDX): New define.
(_bfd_elf_copy_private_symbol_data): Handle symtab_shndx_section.
(swap_out_syms): Swap out SHT_SYMTAB_SHNDX section too.
* elfcode.h (elf_swap_symbol_in): Add shndx param, and handle shndx
extension.
(elf_swap_symbol_out): Likewise.
(elf_object_p): Set elf_numsections, and use instead of e_shnum.
Initialialise reserved elf_elfsections to point at shdr[0]. Remove
redundant bfd_release calls.
(elf_slurp_symbol_table): Read symbol shndx extension, and use with
elf_swap_symbol_in. Translate st_shndx for > SHN_HIRESERVE too.
* elflink.h (elf_link_is_defined_archive_symbol): Read symbol shndx
extension, and use with elf_swap_symbol_in.
(elf_link_record_local_dynamic_symbol): Likewise.
(elf_link_add_object_symbols): Likewise. Also translate st_shndx
for elf sections > SHN_HIRESERVE.
(NAME(bfd_elf,size_dynamic_sections)): Adjust elf_swap_symbol_out
call.
(struct elf_final_link_info): Add locsym_shndx and symshndxbuf.
(elf_bfd_final_link): Allocate the above, and tidy code allocating
other buffers. Use elf_numsections instead of e_shnum. Adjust
elf_swap_symbol_out calls.
(elf_link_output_sym): Swap out symbol shndx extension too.
(elf_link_flush_output_syms): And flush them to disk.
(elf_link_output_extsym): Use SHN_BAD. Adjust elf_swap_symbol_out
calls.
(elf_gc_mark): Read symbol shndx extension, and use with
elf_swap_symbol_in.
(elf_link_input_bfd): Likewise, Translate st_shndx for elf sections
> SHN_HIRESERVE too. Use SHN_BAD.
(elf_reloc_symbol_deleted_p): Use symbol shndx extensions with
elf_swap_symbol_in. Translate st_shndx > SHN_HIRESERVE too.
(elf_bfd_discard_info): Read symbol shndx extension. Don't attempt
to continue after a bfd error.
* elf-m10200.c (mn10200_elf_relax_section): Only read local syms.
Stash them immediately to symtab_hdr->contents rather than later
in multiple places. Clean up afterwards. Read symbol shndx
extension, and use with swap_symbol_in. Translate SHN_UNDEF,
SHN_ABS, SHN_COMMON and elf sections > SHN_HIRESERVE to bfd
sections too. Remove dead code.
(mn10200_elf_relax_delete_bytes): Use symbol shndx extension
when swapping in symbols. Tidy code adjusting global syms.
Don't swap in global syms.
(mn10200_elf_symbol_address_p): Likewise. Remove extsyms param.
(mn10200_elf_get_relocated_section_contents): Read symbol shndx
extension, and use with swap_symbol_in. Rename "size" -> "amt"
to maximize code in common with other files. Translate st_shndx
for > SHN_HIRESERVE too. Remove dead code.
* elf-m10300.c (mn10300_elf_relax_section): Only read local syms.
Stash them immediately to symtab_hdr->contents rather than later
in multiple places. Clean up afterwards. Read symbol shndx
extension, and use with swap_symbol_in. Remove dead code.
(mn10300_elf_relax_delete_bytes): As for elf-m10200.c.
(mn10300_elf_symbol_address_p): Likewise.
(mn10300_elf_get_relocated_section_contents): Likewise.
* elf32-h8300.c (elf32_h8_relax_section): As for elf-m10300.c.
(elf32_h8_relax_delete_bytes): Likewise.
(elf32_h8_symbol_address_p): Likewise.
(elf32_h8_get_relocated_section_contents): Likewise.
* elf32-hppa.c (elf32_hppa_size_stubs): Read symbol shndx
extension, and use with swap_symbol_in.
* elf64-hppa.c (elf64_hppa_check_relocs): Likewise.
* elf32-i370.c (i370_elf_finish_dynamic_sections): Adjust call to
bfd_elf32_swap_symbol_out.
* elf32-m32r.c (m32r_elf_get_relocated_section_contents): Translate
elf sections > SHN_HIRESERVE too.
* elf32-m68k.c (bfd_m68k_elf32_create_embedded_relocs): Only read
local syms. Read symbol shndx extension, and use with swap_symbol_in.
* elf32-mips.c (_bfd_mips_elf_final_write_processing): Use
elf_numsections rather than header e_shnum.
* elf32-sh.c (sh_elf_relax_section): As for elf-m10300.c.
(sh_elf_relax_delete_bytes): Likewise.
(sh_elf_get_relocated_section_contents): Likewise. Only read local
symbols.
* elf32-v850.c (v850_elf_symbol_processing): Use an unsigned int to
hold section index. Use elf_numsections rather than e_shnum.
Rename "index" -> "indx" to avoid shadowing warning.
(v850_elf_add_symbol_hook): Likewise.
* elf64-alpha.c (elf64_alpha_relax_section): Only read local syms.
Read symbol shndx extension, and use with swap_symbol_in.
* elf32-xstormy16.c (xstormy16_elf_relax_section): Likewise.
Translate SHN_COMMON and elf sections > SHN_HIRESERVE too.
* elfxx-ia64.c (elfNN_ia64_relax_section): Likewise.
(elfNN_ia64_aix_add_symbol_hook): Use elf_numsections.
* elf-m10300.c (mn10300_elf_gc_mark_hook): Remove unnecessary checks
before calling bfd_section_from_elf_index on local syms.
* elf32-arm.h (elf32_arm_gc_mark_hook): Likewise.
* elf32-avr.c (elf32_avr_gc_mark_hook): Likewise.
* elf32-cris.c (cris_elf_gc_mark_hook): Likewise.
* elf32-d10v.c (elf32_d10v_gc_mark_hook): Likewise.
* elf32-fr30.c (fr30_elf_gc_mark_hook): Likewise.
* elf32-hppa.c (elf32_hppa_gc_mark_hook): Likewise.
* elf32-i386.c (elf_i386_gc_mark_hook): Likewise.
* elf32-m32r.c (m32r_elf_gc_mark_hook): Likewise.
* elf32-m68k.c (elf_m68k_gc_mark_hook): Likewise.
* elf32-mcore.c (mcore_elf_gc_mark_hook): Likewise.
* elf32-mips.c (_bfd_mips_elf_gc_mark_hook): Likewise.
* elf32-openrisc.c (openrisc_elf_gc_mark_hook): Likewise.
* elf32-ppc.c (ppc_elf_gc_mark_hook): Likewise.
* elf32-s390.c (elf_s390_gc_mark_hook): Likewise.
* elf32-sh.c (sh_elf_gc_mark_hook): Likewise.
* elf32-sparc.c (elf32_sparc_gc_mark_hook): Likewise.
* elf32-v850.c (v850_elf_gc_mark_hook): Likewise.
* elf32-xstormy16.c (xstormy16_elf_gc_mark_hook): Likewise.
* elf64-mips.c (mips_elf64_gc_mark_hook): Likewise.
* elf64-mmix.c (mmix_elf_gc_mark_hook): Likewise.
* elf64-ppc.c (ppc64_elf_gc_mark_hook): Likewise.
* elf64-s390.c (elf_s390_gc_mark_hook): Likewise.
* elf64-x86-64.c (elf64_x86_64_gc_mark_hook): Likewise.
binutils/ChangeLog
* readelf.c (symtab_shndx_hdr): New global.
(SECTION_HEADER_INDEX): Define.
(SECTION_HEADER_NUM): Define.
(SECTION_HEADER): Define.
(GET_ELF_SYMBOLS): Pass two params rather than three.
(get_32bit_elf_symbols): Take file and section args. Read and
use SHT_SYMTAB_SHNDX.
(get_64bit_elf_symbols): Likewise.
(dump_relocations): Use SECTION_HEADER to index "section_headers".
(process_section_headers): Likewise. Use SECTION_HEADER_NUM too.
Remember symtab_shdx_hdr.
(process_program_headers): Scan from index 1 for segment map.
(slurp_ia64_unwind_table): Use SECTION_HEADER to index
"section_headers".
(process_relocs): Likewise. Also adjust call to GET_ELF_SYMBOLS.
(process_unwind): Likewise.
(process_version_sections): Likewise.
(process_symbol_table): Likewise.
(display_debug_info): Likewise.
(process_dynamic_segment): Fake up a symtab section for changed
GET_ELF_SYMBOLS.
(get_symbol_index_type): Check SHN_LOOS before SHN_LORESERVE.
(process_program_headers): Kill signed/unsigned warning.
(load_debug_str): Likewise.
(display_debug_info): Likewise.
2001-12-07 Geoffrey Keating <geoffk@redhat.com>
Richard Henderson <rth@redhat.com>
Corinna Vinschen <vinschen@redhat.com>
* Makefile.am: Add support for xstormy16.
* archures.c: Add support for xstormy16.
* config.bfd: Add support for xstormy16.
* configure.in: Add support for xstormy16.
* reloc.c: Add support for xstormy16.
* targets.c: Add support for xstormy16.
* cpu-xstormy16.c: New file.
* elf32-xstormy16.c: New file.
* Makefile.in: Regenerated.
* bfd-in2.h: Regenerated.
* configure: Regenerated.
* libbfd.h: Regenerated.
Index: binutils/ChangeLog
2001-12-07 Geoffrey Keating <geoffk@redhat.com>
* readelf.c (guess_is_rela): Add support for stormy16.
(dump_relocations): Likewise.
(get_machine_name): Likewise.
Index: gas/ChangeLog
2001-12-07 Geoffrey Keating <geoffk@redhat.com>
Richard Henderson <rth@redhat.com>
* configure.in: Add support for xstormy16.
* configure: Regenerated.
* Makefile.am: Add support for xstormy16.
* Makefile.in: Regenerated.
* config/tc-xstormy16.c: New file.
* config/tc-xstormy16.h: New file.
Index: gas/testsuite/ChangeLog
2001-12-07 Geoffrey Keating <geoffk@redhat.com>
matthew green <mrg@redhat.com>
* gas/xstormy16/allinsn.d: New file.
* gas/xstormy16/allinsn.exp: New file.
* gas/xstormy16/allinsn.s: New file.
* gas/xstormy16/allinsn.sh: New file.
* gas/xstormy16/gcc.d: New file.
* gas/xstormy16/gcc.s: New file.
* gas/xstormy16/gcc.sh: New file.
* gas/xstormy16/reloc-1.d: New file.
* gas/xstormy16/reloc-1.s: New file.
* gas/xstormy16/reloc-2.d: New file.
* gas/xstormy16/reloc-2.s: New file.
Index: ld/ChangeLog
2001-12-07 Geoffrey Keating <geoffk@redhat.com>
Richard Henderson <rth@redhat.com>
* Makefile.am: Add support for xstormy16.
* configure.tgt: Add support for xstormy16.
* Makefile.in: Regenerate.
* emulparams/elf32xstormy16.sh: New file.
* scripttempl/xstormy16.sc: New file.
Index: opcodes/ChangeLog
2001-12-07 Geoffrey Keating <geoffk@redhat.com>
* Makefile.am: Add support for xstormy16.
* Makefile.in: Regenerate.
* configure.in: Add support for xstormy16.
* configure: Regenerate.
* disassemble.c: Add support for xstormy16.
* xstormy16-asm.c: New generated file.
* xstormy16-desc.c: New generated file.
* xstormy16-desc.h: New generated file.
* xstormy16-dis.c: New generated file.
* xstormy16-ibld.c: New generated file.
* xstormy16-opc.c: New generated file.
* xstormy16-opc.h: New generated file.
Index: include/ChangeLog
2001-12-07 Geoffrey Keating <geoffk@redhat.com>
* dis-asm.h (print_insn_xstormy16): Declare.
Index: include/elf/ChangeLog
2001-12-07 Geoffrey Keating <geoffk@redhat.com>
Richard Henderson <rth@redhat.com>
* common.h (EM_XSTORMY16): Define.
* xstormy16.h: New file.
(EM_AVR): this, redefined as in the current ELF standard.
(EM_PJ_OLD): Renamed from...
(EM_PJ): this, redefined as in the current ELF standard.
(EM_R30, EM_D10V, EM_D30V, EM_V850, EM_M32R, EM_MN10300,
EM_MN10200, EM_OPENRISC, EM_ARC_A5, EM_XTENSA): Defined as in
the current ELF standard.
(EM_CYGNUS_ARC): Removed, unused for a long time.