2000-11-25 Hans-Peter Nilsson <hpn@cygnus.com>
* dis-asm.h (print_insn_sh64): New prototype.
(print_insn_sh64l): New prototype.
(print_insn_sh64x_media): New prototype.
[includes]
2002-02-04 Frank Ch. Eigler <fche@redhat.com>
* dis-asm.h (disassemble_info): New field `insn_sets'.
(INIT_DISASSEMBLE_INFO): Clear it.
[opcodes]
2002-02-04 Frank Ch. Eigler <fche@redhat.com>
* cgen-dis.in (print_insn_@arch@): Support disassemble_info.insn_sets.
* 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.
* config/tc-ppc.c (md_parse_option): BookE is not Motorola specific.
[include/opcode/ChangeLog]
* ppc.h (PPC_OPCODE_BOOKE): BookE is not Motorola specific.
(PPC_OPCODE_BOOKE64): Likewise.
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.
* doc/binutils.texi (objdump): Document x86 -M options.
include/ChangeLog
* dis-asm.h (print_insn_i386): Declare.
opcodes/ChangeLog
* disassemble.c (disassembler): Call print_insn_i386.
* i386-dis.c (SUFFIX_ALWAYS): Define.
(struct dis_private): Add orig_sizeflag.
(print_insn_i386): Make it a wrapper, calling..
(print_insn): ..The old body of print_insn_i386. Avoid longjmp
warning without using volatile by moving orig_sizeflag to priv,
and removing inbuf. Parse disassembler_options.
(print_insn_i386_att, print_insn_i386_intel): Move initialisation
code to print_insn.
(putop): Remove #ifdef SUFFIX_ALWAYS.
accept WordReg.
* i386-dis.c (grps): Change "sldt", "str", and "smsw" entries
to "sldtQ", "strQ", "smswQ" respectively; all with Ev operand
category instead of Ew.
2001-10-17 Chris Demetriou <cgd@broadcom.com>
* gas/mips/mips.exp (sb1-ext-ps): New test to test
SB-1 core's paired-single extensions to the MIPS64 ISA.
* gas/mips/sb1-ext-ps.d: New file.
* gas/mips/sb1-ext-ps.s: New file.
[include/opcode/ChangeLog]
2001-10-17 Chris Demetriou <cgd@broadcom.com>
* mips.h (INSN_SB1): New cpu-specific instruction bit.
(OPCODE_IS_MEMBER): Allow instructions matching INSN_SB1
if cpu is CPU_SB1.
[opcodes/ChangeLog]
2001-10-17 Chris Demetriou <cgd@broadcom.com>
* mips-dis.c (mips_isa_type): Make the ISA used to disassemble
SB-1 binaries include instructions specific to the SB-1.
* mips-opc.c (SB1): New definition.
(mips_builtin_opcodes): Add SB-1 extension opcodes "div.ps",
"recip.ps", "rsqrt.ps", and "sqrt.ps".
* config/tc-ppc.c (md_parse_option): New -m7410, -m7450 and -m7455
flags, equivalent to -m7400. New -maltivec to enable AltiVec
instructions. New -mbook64 and -mbooke/-mbooke32 flags to enable
64-bit and 32-bit BookE support, respectively. Change -m403 and
-m405 to set PPC403 option.
(md_show_usage): Adjust for new options.
* doc/all.texi: Set PPC.
* doc/as.texinfo: Add PPC support and pull in c-ppc.texi.
* doc/c-ppc.texi: New file.
* doc/Makefile.am (CPU_DOCS): Add c-ppc.texi.
* doc/Makefile.in: Regenerate.
[gas/testsuite/ChangeLog]
* gas/ppc/booke.s: New test for Motorola BookE.
* gas/ppc/booke.d: New file.
* gas/ppc/ppc.exp: Test booke.s.
[include/opcode/ChangeLog]
* ppc.h (PPC_OPCODE_BOOKE, PPC_OPCODE_403): New opcode flags for
BookE and PowerPC403 instructions.
[opcodes/ChangeLog]
* ppc-opc.c (insert_de, extract_de, insert_des, extract_des): New
instruction field instruction/extraction functions for new BookE
DE form instructions.
(CT): New macro for CT field in an X form instruction.
(DE, DES, DEO, DE_MASK): New macros for DE/DES fields in DE form
instructions.
(PPC64): Don't include PPC_OPCODE_PPC.
(403): New opcode macro for PPC403 processors.
(BOOKE): New opcode macro for BookE processors.
(bce, bcel, bcea, bcela, bclre, bclrel: New BookE instructions.
(bcctre, bcctrel, be, bel, bea, bela, icbt, icbte, lwzxe): Likewise.
(dcbste, lwzuxe, luxe, dcbfe, lbzxe, lwarxe, lbzuxe): Likewise.
(stwcxe, stwxe, stxe, stwuxe, stuxe, stbxe, dcbtste, stbuxe): Likewise.
(mfapidi, dcbte, lhzxe, lhzuxe, lhaxe, lhauxe, subfe64): Likewise.
(subfeo64, adde64, addeo64, sthxe, sthuxe, subfze64): Likewise.
(subfzeo64, addze64, addzeo64, dcbie, subfme64, subfmeo64): Likewise.
(addme64, addmeo64, stdcxe., mcrxr64, lwbrxe, lfsxe, lfsuxe): Likewise.
(lfdxe, lfduxe, stwbrxe, stfsxe, stfsuxe, stfdxe, dcbae): Likewise.
(stfduxe, tlbivax, tlbivaxe, lhbrxe, ldxe, lduxe, tlbsx): Likewise.
(tlbsxe, sthbrxe, stdxe, stduxe, icbie, stfiwxe, dcbze, lbze): Likewise.
(lbzue, ldue, lhze, lhzue, lhae, lhaue, lwze, lwzue): Likewise.
(stbe, stbue, sthe, sthue, stwe, stwue, lfse, lfsue, lfde): Likewise.
(lfdue, stde, stdue, stfse, stfsue, stfde, stfdue): Likewise.
* ppc-dis.c (print_insn_big_powerpc, print_insn_little_powerpc): Look
for a disassembler option of `booke', `booke32' or `booke64' to enable
BookE support in the disassembler.
(PUT_LINENO_LNNO): Use H_PUT_32/16.
* m88k.h (GET_LNSZ_SIZE, GET_LNSZ_LNNO, GET_SCN_NRELOC,
GET_SCN_NLINNO): Use H_GET_32.
(PUT_LNSZ_LNNO, PUT_LNSZ_SIZE, PUT_SCN_NRELOC, PUT_SCN_NLINNO):
Use H_PUT_32.
* ti.h: Formatting fixes. Make use of H_GET_* and H_PUT_* throughout.
* xcoff.h: White space changes.
(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.
(struct elf_backend_data): Add elf_backend_reloc_type_class.
(_bfd_elf_reloc_type_class): New.
* elfxx-target.h (elf_backend_reloc_type_class): Define.
(elfNN_bed): Add elf_backend_reloc_type_class.
* elf.c (_bfd_elf_reloc_type_class): New.
* elf32-i386.c (elf_i386_check_relocs): Set DF_TEXTREL if the reloc
is against read-only section.
(elf_i386_size_dynamic_sections): Use DF_TEXTREL flag instead of
looking up section names for DT_TEXTREL.
(elf_i386_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
* elf32-sparc.c (elf32_sparc_check_relocs): Set DF_TEXTREL if the
reloc is against read-only section.
(elf32_sparc_size_dynamic_sections): Use DF_TEXTREL flag instead of
looking up section names for DT_TEXTREL.
(elf32_sparc_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
* elf64-sparc.c (sparc64_elf_check_relocs): Set DF_TEXTREL if the
reloc is against read-only section.
(sparc64_elf_size_dynamic_sections): Use DF_TEXTREL flag instead of
looking up section names for DT_TEXTREL.
(sparc64_elf_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
* elfxx-ia64.c (struct elfNN_ia64_link_hash_table): Add reltext field.
(elfNN_ia64_hash_table_create): Clear ia64_info.
(get_reloc_section): Set DF_TEXTREL if the reloc is against read-only
section.
(elfNN_ia64_size_dynamic_sections): Use ia64_info->reltext flag
instead of looking up section names for DT_TEXTREL.
(elfNN_ia64_reloc_type_class): New.
(elf_backend_reloc_type_class): Define.
* elflink.h (size_dynamic_sections): Add spare DT_NULL tags.
(struct elf_link_sort_rela): New.
(elf_link_sort_cmp1, elf_link_sort_cmp2, elf_link_sort_relocs): New.
(elf_bfd_final_link): Call elf_link_sort_relocs.
Convert one spare DT_NULL into DT_RELCOUNT resp. DT_RELACOUNT if
necessary.
* bfdlink.h (struct bfd_link_info): Add combreloc and
spare_dynamic_tags fields.
* emultempl/elf32.em (place_orphan): Place orphan .rel* sections
into .rel.dyn resp. .rela.dyn if combreloc.
(get_script): If .x linker script is equal to .xn, only put it
once into the binary.
Add .xc and .xsc scripts.
(parse_args): Handle -z combreloc and -z nocombreloc.
* scripttempl/elf.sc (.rela.sbss): Fix a typo.
For .xc and .xsc scripts put all .rel* or .rela* input sections
but .rel*.plt and PLT-like sections into .rel.dyn resp. .rela.dyn.
* genscripts.sh (GENERATE_COMBRELOC_SCRIPT): Set if SCRIPT_NAME
is elf.
Strip trailing whitespace from script.
Generate .xc and .xsc scripts if requested.
* ldmain.c (main): Initialize link_info.combreloc and
link_info.spare_dynamic_tags.
* lexsup.c (OPTION_SPARE_DYNAMIC_TAGS): Define.
(ld_options): Add --spare-dynamic-tags option.
(parse_args): Likewise.
* ld.texinfo: Document -z combreloc and -z nocombreloc.
* ldint.texinfo: Document .xc and .xsc linker scripts.
* NEWS: Add notes about -z combreloc and SHF_MERGE.