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Update year range in copyright notice of binutils files
[thirdparty/binutils-gdb.git] / libctf / ChangeLog
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-2020-11-23  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_dict_t) <ctf_symtab_little_endian>: New.
-       (struct ctf_archive_internal) <ctfi_symsect_little_endian>: Likewise.
-       * ctf-create.c (ctf_serialize): Adjust for new field.
-       * ctf-open.c (init_symtab): Note the semantics of repeated calls.
-       (ctf_symsect_endianness): New.
-       (ctf_bufopen_internal): Set ctf_symtab_little_endian suitably for
-       the native endianness.
-       (_Static_assert): Moved...
-       (swap_thing): ... with this...
-       * swap.h: ... to here.
-       * ctf-util.c (ctf_elf32_to_link_sym): Use it, byteswapping the
-       Elf32_Sym if the ctf_symtab_little_endian demands it.
-       (ctf_elf64_to_link_sym): Likewise swap the Elf64_Sym if needed.
-       * ctf-archive.c (ctf_arc_symsect_endianness): New, set the
-       endianness of the symtab used by the dicts in an archive.
-       (ctf_archive_iter_internal): Initialize to unknown (assumed native,
-       do not call ctf_symsect_endianness).
-       (ctf_dict_open_by_offset): Call ctf_symsect_endianness if need be.
-       (ctf_dict_open_internal): Propagate the endianness down.
-       (ctf_dict_open_sections): Likewise.
-       * ctf-open-bfd.c (ctf_bfdopen_ctfsect): Get the endianness from the
-       struct bfd and pass it down to the archive.
-       * libctf.ver: Add ctf_symsect_endianness and
-       ctf_arc_symsect_endianness.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-link.c (ctf_link_deduplicating): Clean up the ctf_link_outputs
-       hash on error.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_dtd_insert): Set ENOMEM on the dict if out of memory.
-       (ctf_dvd_insert): Likewise.
-       (ctf_add_function): Report ECTF_RDONLY if this dict is not writable.
-       * ctf-subr.c (ctf_err_warn): Only debug-dump passed-in warnings if
-       the passed-in error code is nonzero: the error on the dict for
-       warnings may relate to a previous error.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (ctf_getsymsect): New.
-       (ctf_getstrsect): Likewise.
-       * libctf.ver: Add them.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (struct ctf_archive_internal) <ctfi_dicts>: New, dicts
-       the archive machinery has opened and cached.
-       <ctfi_symdicts>: New, cache of dicts containing symbols looked up.
-       <ctfi_syms>: New, cache of types of symbols looked up.
-       * ctf-archive.c (ctf_arc_close): Free them on close.
-       (enosym): New, flag entry for 'symbol not present'.
-       (ctf_arc_import_parent): New, automatically import the parent from
-       ".ctf" if this is a child in an archive and ".ctf" is present.
-       (ctf_dict_open_sections): Use it.
-       (ctf_archive_iter_internal): Likewise.
-       (ctf_cached_dict_close): New, thunk around ctf_dict_close.
-       (ctf_dict_open_cached): New, open and cache a dict.
-       (ctf_arc_flush_caches): New, flush the caches.
-       (ctf_arc_lookup_symbol): New, look up a symbol in (all members of)
-       an archive, and cache the lookup.
-       (ctf_archive_iter): Note the new caching behaviour.
-       (ctf_archive_next): Use ctf_dict_open_cached.
-       * libctf.ver: Add ctf_arc_lookup_symbol and ctf_arc_flush_caches.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dedup.c (ctf_dedup_rhash_type): Null out the names of nameless
-       type kinds, just in case the input has named them.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c (ctf_dump_header): Dump the new flags bits and the index
-       section lengths.
-       (ctf_dump_objts): Report indexed sections.  Also dump functions.  Use
-       ctf_symbol_next, not manual looping.
-       (ctf_dump_funcs): Delete.
-       (ctf_dump): Use ctf_dump_objts, not ctf_dump_funcs.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (CTF_INDEX_PAD_THRESHOLD): New.
-       (_libctf_nonnull_): Likewise.
-       (ctf_in_flight_dynsym_t): New.
-       (ctf_dict_t) <ctf_funcidx_names>: Likewise.
-       <ctf_objtidx_names>: Likewise.
-       <ctf_nfuncidx>: Likewise.
-       <ctf_nobjtidx>: Likewise.
-       <ctf_funcidx_sxlate>: Likewise.
-       <ctf_objtidx_sxlate>: Likewise.
-       <ctf_objthash>: Likewise.
-       <ctf_funchash>: Likewise.
-       <ctf_dynsyms>: Likewise.
-       <ctf_dynsymidx>: Likewise.
-       <ctf_dynsymmax>: Likewise.
-       <ctf_in_flight_dynsym>: Likewise.
-       (struct ctf_next) <u.ctn_next>: Likewise.
-       (ctf_symtab_skippable): New prototype.
-       (ctf_add_funcobjt_sym): Likewise.
-       (ctf_dynhash_sort_by_name): Likewise.
-       (ctf_sym_to_elf64): Rename to...
-       (ctf_elf32_to_link_sym): ... this, and...
-       (ctf_elf64_to_link_sym): ... this.
-       * ctf-open.c (init_symtab): Check for lack of CTF_F_NEWFUNCINFO
-       flag, and presence of index sections.  Refactor out
-       ctf_symtab_skippable and ctf_elf*_to_link_sym, and use them.  Use
-       ctf_link_sym_t, not Elf64_Sym.  Skip initializing objt or func
-       sxlate sections if corresponding index section is present.  Adjust
-       for new func info section format.
-       (ctf_bufopen_internal): Add ctf_err_warn to corrupt-file error
-       handling.  Report incorrect-length index sections.  Always do an
-       init_symtab, even if there is no symtab section (there may be index
-       sections still).
-       (flip_objts): Adjust comment: func and objt sections are actually
-       identical in structure now, no need to caveat.
-       (ctf_dict_close):  Free newly-added data structures.
-       * ctf-create.c (ctf_create): Initialize them.
-       (ctf_symtab_skippable): New, refactored out of
-       init_symtab, with st_nameidx_set check added.
-       (ctf_add_funcobjt_sym): New, add a function or object symbol to the
-       ctf_objthash or ctf_funchash, by name.
-       (ctf_add_objt_sym): Call it.
-       (ctf_add_func_sym): Likewise.
-       (symtypetab_delete_nonstatic_vars): New, delete vars also present as
-       data objects.
-       (CTF_SYMTYPETAB_EMIT_FUNCTION): New flag to symtypetab emitters:
-       this is a function emission, not a data object emission.
-       (CTF_SYMTYPETAB_EMIT_PAD): New flag to symtypetab emitters: emit
-       pads for symbols with no type (only set for unindexed sections).
-       (CTF_SYMTYPETAB_FORCE_INDEXED): New flag to symtypetab emitters:
-       always emit indexed.
-       (symtypetab_density): New, figure out section sizes.
-       (emit_symtypetab): New, emit a symtypetab.
-       (emit_symtypetab_index): New, emit a symtypetab index.
-       (ctf_serialize): Call them, emitting suitably sorted symtypetab
-       sections and indexes.  Set suitable header flags.  Copy over new
-       fields.
-       * ctf-hash.c (ctf_dynhash_sort_by_name): New, used to impose an
-       order on symtypetab index sections.
-       * ctf-link.c (ctf_add_type_mapping): Delete erroneous comment
-       relating to code that was never committed.
-       (ctf_link_one_variable): Improve variable name.
-       (check_sym): New, symtypetab analogue of check_variable.
-       (ctf_link_deduplicating_one_symtypetab): New.
-       (ctf_link_deduplicating_syms): Likewise.
-       (ctf_link_deduplicating): Call them.
-       (ctf_link_deduplicating_per_cu): Note that we don't call them in
-       this case (yet).
-       (ctf_link_add_strtab): Set the error on the fp correctly.
-       (ctf_link_add_linker_symbol): New (no longer a do-nothing stub), add
-       a linker symbol to the in-flight list.
-       (ctf_link_shuffle_syms): New (no longer a do-nothing stub), turn the
-       in-flight list into a mapping we can use, now its names are
-       resolvable in the external strtab.
-       * ctf-string.c (ctf_str_rollback_atom): Don't roll back atoms with
-       external strtab offsets.
-       (ctf_str_rollback): Adjust comment.
-       (ctf_str_write_strtab): Migrate ctf_syn_ext_strtab population from
-       writeout time...
-       (ctf_str_add_external): ... to string addition time.
-       * ctf-lookup.c (ctf_lookup_var_key_t): Rename to...
-       (ctf_lookup_idx_key_t): ... this, now we use it for syms too.
-       <clik_names>: New member, a name table.
-       (ctf_lookup_var): Adjust accordingly.
-       (ctf_lookup_variable): Likewise.
-       (ctf_lookup_by_id): Shuffle further up in the file.
-       (ctf_symidx_sort_arg_cb): New, callback for...
-       (sort_symidx_by_name): ... this new function to sort a symidx
-       found to be unsorted (likely originating from the compiler).
-       (ctf_symidx_sort): New, sort a symidx.
-       (ctf_lookup_symbol_name): Support dynamic symbols with indexes
-       provided by the linker.  Use ctf_link_sym_t, not Elf64_Sym.
-       Check the parent if a child lookup fails.
-       (ctf_lookup_by_symbol): Likewise.  Work for function symbols too.
-       (ctf_symbol_next): New, iterate over symbols with types (without
-       sorting).
-       (ctf_lookup_idx_name): New, bsearch for symbol names in indexes.
-       (ctf_try_lookup_indexed): New, attempt an indexed lookup.
-       (ctf_func_info): Reimplement in terms of ctf_lookup_by_symbol.
-       (ctf_func_args): Likewise.
-       (ctf_get_dict): Move...
-       * ctf-types.c (ctf_get_dict): ... here.
-       * ctf-util.c (ctf_sym_to_elf64): Re-express as...
-       (ctf_elf64_to_link_sym): ... this.  Add new st_symidx field, and
-       st_nameidx_set (always 0, so st_nameidx can be ignored).  Look in
-       the ELF strtab for names.
-       (ctf_elf32_to_link_sym): Likewise, for Elf32_Sym.
-       (ctf_next_destroy): Destroy ctf_next_t.u.ctn_next if need be.
-       * libctf.ver: Add ctf_symbol_next, ctf_add_objt_sym and
-       ctf_add_func_sym.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-link.c (ctf_link_shuffle_syms): Adjust.
-       (ctf_link_add_linker_symbol): New, unimplemented stub.
-       * libctf.ver: Add it.
-       * ctf-create.c (ctf_serialize): Set CTF_F_DYNSTR on newly-serialized
-       dicts.
-       * ctf-open-bfd.c (ctf_bfdopen_ctfsect): Check for the flag: open the
-       symtab/strtab if not present, dynsym/dynstr otherwise.
-       * ctf-archive.c (ctf_arc_bufpreamble): New, get the preamble from
-       some arbitrary member of a CTF archive.
-       * ctf-impl.h (ctf_arc_bufpreamble): Declare it.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c (ctf_arc_open_by_offset): Rename to...
-       (ctf_dict_open_by_offset): ... this.  Adjust callers.
-       (ctf_arc_open_by_name_internal): Rename to...
-       (ctf_dict_open_internal): ... this.  Adjust callers.
-       (ctf_arc_open_by_name_sections): Rename to...
-       (ctf_dict_open_sections): ... this, keeping compatibility function.
-       (ctf_arc_open_by_name): Rename to...
-       (ctf_dict_open): ... this, keeping compatibility function.
-       * libctf.ver: New functions added.
-       * ctf-link.c (ctf_link_one_input_archive): Adjusted accordingly.
-       (ctf_link_deduplicating_open_inputs): Likewise.
-
-2020-11-20  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h: Rename ctf_file_t to ctf_dict_t: all declarations
-       adjusted.
-       (ctf_fileops): Rename to...
-       (ctf_dictops): ... this.
-       (ctf_dedup_t) <cd_id_to_file_t>: Rename to...
-       <cd_id_to_dict_t>: ... this.
-       (ctf_file_t): Fix outdated comment.
-       <ctf_fileops>: Rename to...
-       <ctf_dictops>: ... this.
-       (struct ctf_archive_internal) <ctfi_file>: Rename to...
-       <ctfi_dict>: ... this.
-       * ctf-archive.c: Rename ctf_file_t to ctf_dict_t.
-       Rename ctf_archive.ctfa_nfiles to ctfa_ndicts.
-       Rename ctf_file_close to ctf_dict_close.  All users adjusted.
-       * ctf-create.c: Likewise.  Refer to CTF dicts, not CTF containers.
-       (ctf_bundle_t) <ctb_file>: Rename to...
-       <ctb_dict): ... this.
-       * ctf-decl.c: Rename ctf_file_t to ctf_dict_t.
-       * ctf-dedup.c: Likewise.  Rename ctf_file_close to
-       ctf_dict_close. Refer to CTF dicts, not CTF containers.
-       * ctf-dump.c: Likewise.
-       * ctf-error.c: Likewise.
-       * ctf-hash.c: Likewise.
-       * ctf-inlines.h: Likewise.
-       * ctf-labels.c: Likewise.
-       * ctf-link.c: Likewise.
-       * ctf-lookup.c: Likewise.
-       * ctf-open-bfd.c: Likewise.
-       * ctf-string.c: Likewise.
-       * ctf-subr.c: Likewise.
-       * ctf-types.c: Likewise.
-       * ctf-util.c: Likewise.
-       * ctf-open.c: Likewise.
-       (ctf_file_close): Rename to...
-       (ctf_dict_close): ...this.
-       (ctf_file_close): New trivial wrapper around ctf_dict_close, for
-       compatibility.
-       (ctf_parent_file): Rename to...
-       (ctf_parent_dict): ... this.
-       (ctf_parent_file): New trivial wrapper around ctf_parent_dict, for
-       compatibility.
-       * libctf.ver: Add ctf_dict_close and ctf_parent_dict.
-
-2020-10-21  Tom Tromey  <tromey@adacore.com>
-
-       * mkerrors.sed: Remove.
-       * ctf-error.c (_CTF_FIRST): New define.
-       (_CTF_ITEM): Define this, not _CTF_STR.
-       (_ctf_errlist, _ctf_erridx): Use _CTF_ERRORS.
-       (ERRSTRFIELD): Rewrite.
-       (ERRSTRFIELD1): Remove.
-       * Makefile.in: Rebuild.
-       * Makefile.am (BUILT_SOURCES): Remove.
-       (ctf-error.h): Remove.
-
-2020-08-27  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-subr.c (open_errors): New list.
-       (ctf_err_warn): Calls with NULL fp append to open_errors.  Add err
-       parameter, and use it to decorate the debug stream with errmsgs.
-       (ctf_err_warn_to_open): Splice errors from a CTF dict into the
-       open_errors.
-       (ctf_errwarning_next): Calls with NULL fp report from open_errors.
-       New err param to report iteration errors (including end-of-iteration)
-       when fp is NULL.
-       (ctf_assert_fail_internal): Adjust ctf_err_warn call for new err
-       parameter: gettextize.
-       * ctf-impl.h (ctfo_get_vbytes): Add ctf_file_t parameter.
-       (LCTF_VBYTES): Adjust.
-       (ctf_err_warn_to_open): New.
-       (ctf_err_warn): Adjust.
-       (ctf_bundle): Used in only one place: move...
-       * ctf-create.c: ... here.
-       (enumcmp): Use ctf_err_warn, not ctf_dprintf, passing the err number
-       down as needed.  Don't emit the errmsg.  Gettextize.
-       (membcmp): Likewise.
-       (ctf_add_type_internal): Likewise.
-       (ctf_write_mem): Likewise.
-       (ctf_compress_write): Likewise.  Report errors writing the header or
-       body.
-       (ctf_write): Likewise.
-       * ctf-archive.c (ctf_arc_write_fd): Use ctf_err_warn, not
-       ctf_dprintf, and gettextize, as above.
-       (ctf_arc_write): Likewise.
-       (ctf_arc_bufopen): Likewise.
-       (ctf_arc_open_internal): Likewise.
-       * ctf-labels.c (ctf_label_iter): Likewise.
-       * ctf-open-bfd.c (ctf_bfdclose): Likewise.
-       (ctf_bfdopen): Likewise.
-       (ctf_bfdopen_ctfsect): Likewise.
-       (ctf_fdopen): Likewise.
-       * ctf-string.c (ctf_str_write_strtab): Likewise.
-       * ctf-types.c (ctf_type_resolve): Likewise.
-       * ctf-open.c (get_vbytes_common): Likewise. Pass down the ctf dict.
-       (get_vbytes_v1): Pass down the ctf dict.
-       (get_vbytes_v2): Likewise.
-       (flip_ctf): Likewise.
-       (flip_types): Likewise. Use ctf_err_warn, not ctf_dprintf, and
-       gettextize, as above.
-       (upgrade_types_v1): Adjust calls.
-       (init_types): Use ctf_err_warn, not ctf_dprintf, as above.
-       (ctf_bufopen_internal): Likewise. Adjust calls. Transplant errors
-       emitted into individual dicts into the open errors if this turns
-       out to be a failed open in the end.
-       * ctf-dump.c (ctf_dump_format_type): Adjust ctf_err_warn for new err
-       argument.  Gettextize.  Don't emit the errmsg.
-       (ctf_dump_funcs): Likewise.  Collapse err label into its only case.
-       (ctf_dump_type): Likewise.
-       * ctf-link.c (ctf_create_per_cu): Adjust ctf_err_warn for new err
-       argument.  Gettextize.  Don't emit the errmsg.
-       (ctf_link_one_type): Likewise.
-       (ctf_link_lazy_open): Likewise.
-       (ctf_link_one_input_archive): Likewise.
-       (ctf_link_deduplicating_count_inputs): Likewise.
-       (ctf_link_deduplicating_open_inputs): Likewise.
-       (ctf_link_deduplicating_close_inputs): Likewise.
-       (ctf_link_deduplicating): Likewise.
-       (ctf_link): Likewise.
-       (ctf_link_deduplicating_per_cu): Likewise. Add some missed
-       ctf_set_errnos to obscure error cases.
-       * ctf-dedup.c (ctf_dedup_rhash_type): Adjust ctf_err_warn for new
-       err argument.  Gettextize.  Don't emit the errmsg.
-       (ctf_dedup_populate_mappings): Likewise.
-       (ctf_dedup_detect_name_ambiguity): Likewise.
-       (ctf_dedup_init): Likewise.
-       (ctf_dedup_multiple_input_dicts): Likewise.
-       (ctf_dedup_conflictify_unshared): Likewise.
-       (ctf_dedup): Likewise.
-       (ctf_dedup_rwalk_one_output_mapping): Likewise.
-       (ctf_dedup_id_to_target): Likewise.
-       (ctf_dedup_emit_type): Likewise.
-       (ctf_dedup_emit_struct_members): Likewise.
-       (ctf_dedup_populate_type_mapping): Likewise.
-       (ctf_dedup_populate_type_mappings): Likewise.
-       (ctf_dedup_emit): Likewise.
-       (ctf_dedup_hash_type): Likewise. Fix a bit of messed-up error
-       status setting.
-       (ctf_dedup_rwalk_one_output_mapping): Likewise. Don't hide
-       unknown-type-kind messages (which signify file corruption).
-
-2020-08-27  Nick Alcock  <nick.alcock@oracle.com>
-
-       * configure.ac: Adjust package name to simply 'libctf': arbitrarily
-       declare this to be version 1.2.0.
-       * Makefile.am (AM_CPPFLAGS): Add @INCINTL@.
-       * Makefile.in: Regenerated.
-       * configure: Regenerated.
-       * ctf-intl.h: New file, lightly modified from opcodes/opintl.h.
-       * ctf-impl.h: Include it.
-       * ctf-error.r (_ctf_errlist_t): Mark strings as noop-translatable.
-       (ctf_errmsg): Actually translate them.
-
-2020-07-26  Eli Zaretskii  <eliz@gnu.org>
-
-       PR binutils/25155:
-       * ctf-create.c (EOVERFLOW): If not defined by system header,
-       redirect to ERANGE as a poor man's substitute.
-       * ctf-subr.c (ENOTSUP): If not defined, use ENOSYS instead.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_dtd_insert): Add uintptr_t casts.
-       (ctf_dtd_delete): Likewise.
-       (ctf_dtd_lookup): Likewise.
-       (ctf_rollback): Likewise.
-       * ctf-hash.c (ctf_hash_lookup_type): Likewise.
-       * ctf-types.c (ctf_lookup_by_rawhash): Likewise.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-lookup.c (ctf_lookup_by_name): Adjust.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c (ctf_arc_bufopen): Endian-swap the archive magic
-       number if needed.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_list_splice): New.
-       * ctf-util.h (ctf_list_splice): Likewise.
-       * ctf-link.c (link_sort_inputs_cb_arg_t): Likewise.
-       (ctf_link_sort_inputs): Likewise.
-       (ctf_link_deduplicating_count_inputs): Likewise.
-       (ctf_link_deduplicating_open_inputs): Likewise.
-       (ctf_link_deduplicating_close_inputs): Likewise.
-       (ctf_link_deduplicating_variables): Likewise.
-       (ctf_link_deduplicating_per_cu): Likewise.
-       (ctf_link_deduplicating): Likewise.
-       (ctf_link): Call it.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-link.c (ctf_link_one_input_archive_member): Check
-       CTF_LINK_OMIT_VARIABLES_SECTION.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_type_id_key): New, the key in the
-       cd_id_to_file_t.
-       (ctf_dedup): New, core deduplicator state.
-       (ctf_file_t) <ctf_dedup>: New.
-       <ctf_dedup_atoms>: New.
-       <ctf_dedup_atoms_alloc>: New.
-       (ctf_hash_type_id_key): New prototype.
-       (ctf_hash_eq_type_id_key): Likewise.
-       (ctf_dedup_atoms_init): Likewise.
-       * ctf-hash.c (ctf_hash_eq_type_id_key): New.
-       (ctf_dedup_atoms_init): Likewise.
-       * ctf-create.c (ctf_serialize): Adjusted.
-       (ctf_add_encoded): No longer static.
-       (ctf_add_reftype): Likewise.
-       * ctf-open.c (ctf_file_close): Destroy the
-       ctf_dedup_atoms_alloc.
-       * ctf-dedup.c: New file.
-        * ctf-decls.h [!HAVE_DECL_STPCPY]: Add prototype.
-       * configure.ac: Check for stpcpy.
-       * Makefile.am: Add it.
-       * Makefile.in: Regenerate.
-        * config.h.in: Regenerate.
-        * configure: Regenerate.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * configure.ac: Add --enable-libctf-hash-debugging.
-       * aclocal.m4: Pull in enable.m4, for GCC_ENABLE.
-       * Makefile.in: Regenerated.
-       * configure: Likewise.
-       * config.h.in: Likewise.
-       * ctf-impl.h [ENABLE_LIBCTF_HASH_DEBUGGING]
-       (ctf_assert): Define to assert.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-sha1.h: New, inline wrappers around sha1_init_ctx and
-       sha1_process_bytes.
-       * ctf-impl.h: Include it.
-       (ctf_sha1_init): New.
-       (ctf_sha1_add): Likewise.
-       (ctf_sha1_fini): Likewise.
-       * ctf-sha1.c: New, non-inline wrapper around sha1_finish_ctx
-       producing strings.
-       * Makefile.am: Add file.
-       * Makefile.in: Regenerate.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * libctf.ver (ctf_link_set_variable_filter): Add.
-       * ctf-impl.h (ctf_file_t) <ctf_link_variable_filter>: New.
-       <ctf_link_variable_filter_arg>: Likewise.
-       * ctf-create.c (ctf_serialize): Adjust.
-       * ctf-link.c (ctf_link_set_variable_filter): New, set it.
-       (ctf_link_one_variable): Call it if set.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-link.c (ctf_link_one_variable): Check the dst_type for
-       conflicts, not the source type.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_file_t): Improve comments.
-       <ctf_link_cu_mapping>: Split into...
-       <ctf_link_in_cu_mapping>: ... this...
-       <ctf_link_out_cu_mapping>: ... and this.
-       * ctf-create.c (ctf_serialize): Adjust.
-       * ctf-open.c (ctf_file_close): Likewise.
-       * ctf-link.c (ctf_create_per_cu): Look things up in the
-       in_cu_mapping instead of the cu_mapping.
-       (ctf_link_add_cu_mapping): The deduplicating link will define
-       what happens if many FROMs share a TO.
-       (ctf_link_add_cu_mapping): Create in_cu_mapping and
-       out_cu_mapping. Do not create ctf_link_outputs here any more, or
-       create per-CU dicts here: they are already created when needed.
-       (ctf_link_one_variable): Log a debug message if we skip a
-       variable due to its type being concealed in a CU-mapped link.
-       (This is probably too common a case to make into a warning.)
-       (ctf_link): Create empty per-CU dicts if requested.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-link.c (ctf_link_write): Close the fd.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * Makefile.am: Set -DNOBFD=1 in libctf-nobfd, and =0 elsewhere.
-       * Makefile.in: Regenerated.
-       * ctf-impl.h (ctf_link_input_name): New.
-       (ctf_file_t) <ctf_link_flags>: New.
-       * ctf-create.c (ctf_serialize): Adjust accordingly.
-       * ctf-link.c: Define ctf_open as weak when PIC.
-       (ctf_arc_close_thunk): Remove unnecessary thunk.
-       (ctf_file_close_thunk): Likewise.
-       (ctf_link_input_name): New.
-       (ctf_link_input_t): New value of the ctf_file_t.ctf_link_input.
-       (ctf_link_input_close): Adjust accordingly.
-       (ctf_link_add_ctf_internal): New, split from...
-       (ctf_link_add_ctf): ... here.  Return error if lazy loading of
-       CTF is not possible.  Change to just call...
-       (ctf_link_add): ... this new function.
-       (ctf_link_add_cu_mapping): Transition to ctf_err_warn.  Drop the
-       ctf_file_close_thunk.
-       (ctf_link_in_member_cb_arg_t) <file_name> Rename to...
-       <in_file_name>: ... this.
-       <arcname>: Drop.
-       <share_mode>: Likewise (migrated to ctf_link_flags).
-       <done_main_member>: Rename to...
-       <done_parent>: ... this.
-       <main_input_fp>: Rename to...
-       <in_fp_parent>: ... this.
-       <cu_mapped>: New.
-       (ctf_link_one_type): Adjuwt accordingly.  Transition to
-       ctf_err_warn, removing a TODO.
-       (ctf_link_one_variable): Note a case too common to warn about.
-       Report in the debug stream if a cu-mapped link prevents addition
-       of a conflicting variable.
-       (ctf_link_one_input_archive_member): Adjust.
-       (ctf_link_lazy_open): New, open a CTF archive for linking when
-       needed.
-       (ctf_link_close_one_input_archive): New, close it again.
-       (ctf_link_one_input_archive): Adjust for lazy opening, member
-       renames, and ctf_err_warn transition.  Move the
-       empty_link_type_mapping call to...
-       (ctf_link): ... here.  Adjut for renamings and thunk removal.
-       Don't spuriously fail if some input contains no CTF data.
-       (ctf_link_write): ctf_err_warn transition.
-       * libctf.ver: Remove not-yet-stable comment.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_strerror): Delete.
-       * ctf-subr.c (ctf_strerror): Likewise.
-       * ctf-error.c (ctf_errmsg): Stop using ctf_strerror: just use
-       strerror directly.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.c (ctf_file_t) <ctf_parent_unreffed>: New.
-       (ctf_import_unref): New.
-       * ctf-open.c (ctf_file_close) Drop the refcount all the way to
-       zero.  Don't recurse back in if the refcount is already zero.
-       (ctf_import): Check ctf_parent_unreffed before deciding whether
-       to close a pre-existing parent.  Set it to zero.
-       (ctf_import_unreffed): New, as above, setting
-       ctf_parent_unreffed to 1.
-       * ctf-create.c (ctf_serialize): Do not ctf_import into the new
-       child: use direct assignment, and set unreffed on the new and
-       old children.
-       * ctf-link.c (ctf_create_per_cu): Import the parent using
-       ctf_import_unreffed.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_link_type_mapping_key): Rename to...
-       (ctf_link_type_key): ... this, adjusting member prefixes to
-       match.
-       (ctf_hash_type_mapping_key): Rename to...
-       (ctf_hash_type_key): ... this.
-       (ctf_hash_eq_type_mapping_key): Rename to...
-       (ctf_hash_eq_type_key): ... this.
-       * ctf-hash.c (ctf_hash_type_mapping_key): Rename to...
-       (ctf_hash_type_key): ... this, and adjust for member name
-       changes.
-       (ctf_hash_eq_type_mapping_key): Rename to...
-       (ctf_hash_eq_type_key): ... this, and adjust for member name
-       changes.
-       * ctf-link.c (ctf_add_type_mapping): Adjust.  Note the lack of
-       need for out-of-memory checking in this code.
-       (ctf_type_mapping): Adjust.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       configure.ac: Check for vasprintf.
-       configure: Regenerated.
-       config.h.in: Likewise.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c (ctf_arc_bufopen): Fix message.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (struct ctf_archive_internal) <ctfi_free_strsect>
-       New.
-       * ctf-open-bfd.c (ctf_bfdopen_ctfsect): Explicitly open a strtab
-       if the input has no symtab, rather than dividing by
-       zero. Arrange to free it later via ctfi_free_ctfsect.
-       * ctf-archive.c (ctf_new_archive_internal): Do not
-       ctfi_free_strsect by default.
-       (ctf_arc_close): Possibly free it here.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c (ctf_is_slice): Delete, unnecessary.
-       (ctf_dump_format_type): improve slice formatting.  Always print
-       the type size, even of slices.
-       (ctf_dump_member): Print slices (-> bitfields) differently from
-       non-slices.  Failure to format a type is not an OOM.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c (ctf_dump_format_type): Emit a warning.
-       (ctf_dump_label): Swallow errors from ctf_dump_format_type.
-       (ctf_dump_objts): Likewise.
-       (ctf_dump_var): Likewise.
-       (ctf_dump_type): Do not emit a duplicate message.  Move to
-       ctf_err_warning, and swallow all errors.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-decl.c (ctf_decl_fini): Free the cd_buf.
-       (ctf_decl_buf): Once it escapes, don't try to free it later.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_aname): Print arg types here...
-       * ctf-dump.c (ctf_dump_funcs): ... not here: but do substitute
-       in the type name here.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_assert): New.
-       (ctf_err_warning_t): Likewise.
-       (ctf_file_t) <ctf_errs_warnings>: Likewise.
-       (ctf_err_warn): New prototype.
-       (ctf_assert_fail_internal): Likewise.
-       * ctf-inlines.h (ctf_assert_internal): Likewise.
-       * ctf-open.c (ctf_file_close): Free ctf_errs_warnings.
-       * ctf-create.c (ctf_serialize): Copy it on serialization.
-       * ctf-subr.c (ctf_err_warn): New, add an error/warning.
-       (ctf_errwarning_next): New iterator, free and pass back
-       errors/warnings in succession.
-       * libctf.ver (ctf_errwarning_next): Add.
-
-2020-07-22  Egeyar Bagcioglu  <egeyar.bagcioglu@oracle.com>
-
-       * ctf-types.c (ctf_variable_iter): Fix error return.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (ctf_bufopen_internal): Diagnose invalid flags.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       ctf-decls.h (ctf_qsort_compar_thunk): Fix arg passing.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_next_hkv_t): New, kv-pairs passed to
-       sorting functions.
-       (ctf_next_t) <u.ctn_sorted_hkv>: New, sorted kv-pairs for
-       ctf_dynhash_next_sorted.
-       <cu.ctn_h>: New, pointer to the dynhash under iteration.
-       <cu.ctn_s>: New, pointer to the dynset under iteration.
-       (ctf_hash_sort_f): Sorting function passed to...
-       (ctf_dynhash_next_sorted): ... this new function.
-       (ctf_dynhash_next): New.
-       (ctf_dynset_next): New.
-       * ctf-inlines.h (ctf_dynhash_cnext_sorted): New.
-       (ctf_dynhash_cnext): New.
-       (ctf_dynset_cnext): New.
-       * ctf-hash.c (ctf_dynhash_next_sorted): New.
-       (ctf_dynhash_next): New.
-       (ctf_dynset_next): New.
-       * ctf-util.c (ctf_next_destroy): Free the u.ctn_sorted_hkv if
-       needed.
-       (ctf_next_copy): Alloc-and-copy the u.ctn_sorted_hkv if needed.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_next): New.
-       (ctf_get_dict): New prototype.
-       * ctf-lookup.c (ctf_get_dict): New, split out of...
-       (ctf_lookup_by_id): ... here.
-       * ctf-util.c (ctf_next_create): New.
-       (ctf_next_destroy): New.
-       (ctf_next_copy): New.
-       * ctf-types.c (includes): Add <assert.h>.
-       (ctf_member_next): New.
-       (ctf_enum_next): New.
-       (ctf_type_iter): Document the lack of iteration over parent
-       types.
-       (ctf_type_next): New.
-       (ctf_variable_next): New.
-       * ctf-archive.c (ctf_archive_next): New.
-       * libctf.ver: Add new public functions.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * libctf.ver (ctf_ref): New.
-       * ctf-open.c (ctf_ref): Implement it.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-inlines.h (ctf_forwardable_kind): New.
-       * ctf-create.c (ctf_add_forward): Use it.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_get_ctt_size): Move definition from here...
-       * ctf-inlines.h (ctf_get_ctt_size): ... to here.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-hash.c (ctf_dynset_eq_string): New.
-       (ctf_dynset_create): New.
-       (DYNSET_EMPTY_ENTRY_REPLACEMENT): New.
-       (DYNSET_DELETED_ENTRY_REPLACEMENT): New.
-       (key_to_internal): New.
-       (internal_to_key): New.
-       (ctf_dynset_insert): New.
-       (ctf_dynset_remove): New.
-       (ctf_dynset_destroy): New.
-       (ctf_dynset_lookup): New.
-       (ctf_dynset_exists): New.
-       (ctf_dynset_lookup_any): New.
-       (ctf_hash_insert_type): Coding style.
-       (ctf_hash_define_type): Likewise.
-       * ctf-impl.h (ctf_dynset_t): New.
-       (ctf_dynset_eq_string): New.
-       (ctf_dynset_create): New.
-       (ctf_dynset_insert): New.
-       (ctf_dynset_remove): New.
-       (ctf_dynset_destroy): New.
-       (ctf_dynset_lookup): New.
-       (ctf_dynset_exists): New.
-       (ctf_dynset_lookup_any): New.
-       * ctf-inlines.h (ctf_dynset_cinsert): New.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-hash.c (ctf_helem_t) <key_free>: Remove.
-       <value_free>: Likewise.
-       <owner>: New.
-       (ctf_dynhash_item_free): Indirect through the owner.
-       (ctf_dynhash_create): Only pass in ctf_dynhash_item_free and
-       allocate space for the key_free and value_free fields fields
-       if necessary.
-       (ctf_hashtab_insert): Likewise.  Fix OOM errno value.
-       (ctf_dynhash_insert): Only access ctf_hashtab's key_free and
-       value_free if they will exist.  Set the slot's owner, but only
-       if it exists.
-       (ctf_dynhash_remove): Adjust.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-hash.c (ctf_hashtab_insert): Free the key passed in if
-       there is a key-freeing function and the key already exists.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-inlines.h: New file.
-       * ctf-impl.h: Include it.
-       (ctf_hash_iter_find_f): New typedef.
-       (ctf_dynhash_elements): New.
-       (ctf_dynhash_lookup_kv): New.
-       (ctf_dynhash_iter_find): New.
-       * ctf-hash.c (ctf_dynhash_lookup_kv): New.
-       (ctf_traverse_find_cb_arg_t): New.
-       (ctf_hashtab_traverse_find): New.
-       (ctf_dynhash_iter_find): New.
-       (ctf_dynhash_elements): New.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h [!__GNUC__] (__extension__): Define to nothing.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c (ctf_archive_count): New.
-       * libctf.ver: New public function.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_member_count): New.
-       * libctf.ver: New public function.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_kind_forwarded): New.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_name_raw): New.
-       (ctf_type_aname_raw): Reimplement accordingly.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-subr.c (ctf_dprintf): _libctf_debug is unlikely to be set.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (struct ctf_archive_internal)
-       <ctfi_unmap_on_close>: New.
-       (ctf_new_archive_internal): Adjust.
-       * ctf-archive.c (ctf_new_archive_internal): Likewise.
-       Initialize ctfi_unmap_on_close.  Adjust error path.
-       (ctf_arc_bufopen): Adjust ctf_new_archive_internal call
-       (unmap_on_close is 0).
-       (ctf_arc_close): Only unmap if ctfi_unmap_on_close.
-       * ctf-open-bfd.c (ctf_fdopen): Adjust.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_aname): Return ECTF_CORRUPT if
-       ints, floats or typedefs have no name.  Fix comment typo.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_add_slice): Support slices of any kind that
-       resolves to an integral type.
-       * ctf-types.c (ctf_type_encoding): Resolve the type before
-       fishing its encoding out.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_create): Mark dirty.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (membcmp)  Skip nameless members.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_add_member_offset): Support names of ""
-       as if they were the null pointer.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (init_types): Remove typeless CTF_K_FORWARD
-       special-casing.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_reference): Add support for dynamic slices.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_serialize): Add cast.
-       (ctf_add_slice): Likewise.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_dtdef_t) <dtu_argv>: Fix type.
-       * ctf-create.c (ctf_add_function): Check for unimplemented type
-       and populate at the same time.  Populate one-by-one, not via
-       memcpy.
-       (ctf_serialize): Remove unnecessary cast.
-       * ctf-types.c (ctf_func_type_info): Likewise.
-       (ctf_func_type_args): Likewise.  Fix comment typo.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_add_reftype): Support refs to type zero.
-       (ctf_add_array): Support array contents of type zero.
-       (ctf_add_function): Support arguments and return types of
-       type zero.
-       (ctf_add_typedef): Support typedefs to type zero.
-       (ctf_add_member_offset): Support members of type zero,
-       unless added at unspecified (naturally-aligned) offset.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-error.c: Include <stddef.h>, for offsetof.
-       (_ctf_errlist): Migrate to...
-       (_ctf_errlist_t): ... this.
-       (_ctf_erridx): New, indexes into _ctf_errlist_t.
-       (_ctf_nerr): Remove.
-       (ctf_errmsg): Adjust accordingly.
-       * Makefile.am (BUILT_SOURCES): Note...
-       (ctf-error.h): ... this new rule.
-       * Makefile.in: Regenerate.
-       * mkerrors.sed: New, process ctf-api.h to generate ctf-error.h.
-       * .gitignore: New, ignore ctf-error.h.
-
-2020-07-22  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h: Fix typos in comments.
-
-2020-07-22  Nick Clifton  <nickc@redhat.com>
-
-       * ctf-archive.c (ctf_arc_write): Avoid calling close twice on the
-       same file descriptor.
-
-2020-07-04  Nick Clifton  <nickc@redhat.com>
-
-       Binutils 2.35 branch created.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       * aclocal.m4: Add config/gettext-sister.m4: Shuffle into
-       alphabetical order.
-       * configure.ac: Add ZW_GNU_GETTEXT_SISTER_DIR.
-       * config.h.in: Regenerated.
-       * Makefile.in: Likewise.
-       * configure: Likewise.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c: Include <unistd.h>.
-       * ctf-open-bfd.c: Likewise.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       PR libctf/25120
-       * configure.ac: Check for bswap_16, bswap_32, and bswap_64 decls.
-       * swap.h (bswap_16): Do not assume that presence of <byteswap.h>
-       means this is declared.
-       (bswap_32): Likewise.
-       (bswap_64): Likewise.
-       (bswap_identity_64): Remove, unused.
-       * configure: Regenerated.
-       * config.h.in: Likewise.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       PR libctf/25120
-       * ctf-impl.h (_libctf_printflike_): Add non-GNU-C fallback.
-       (_libctf_unlikely_): Likewise.
-       (_libctf_unused): Likewise.
-       (_libctf_malloc_): Likewise.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       PR libctf/25120
-       * ctf-archive.c (search_nametbl): No longer global: declare...
-       (ctf_arc_open_by_name_internal): ... here. Use bsearch_r.
-       (search_modent_by_name): Take and use ARG for the nametbl.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_new_archive_internal): Declare.
-       (ctf_arc_bufopen): Remove.
-       (ctf_archive_internal) <ctfi_free_symsect>: New.
-       * ctf-archive.c (ctf_arc_close): Use it.
-       (ctf_arc_bufopen): Fuse into...
-       (ctf_new_archive_internal): ... this, moved across from...
-       * ctf-open-bfd.c: ... here.
-       (ctf_bfdopen_ctfsect): Use ctf_arc_bufopen.
-       * libctf.ver: Add it.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_add_forward): Intern in the right namespace.
-       (ctf_dtd_delete): Remove correspondingly.
-       (ctf_rollback): Likewise.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_add_type_internal): Hand back existing types
-       unchanged.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_add_forward): Don't add forwards to
-       types that already exist.
-
-2020-06-26  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (init_types): Only intern root-visible types.
-       * ctf-create.c (ctf_dtd_insert): Likewise.
-       (ctf_dtd_delete): Only remove root-visible types.
-       (ctf_rollback): Likewise.
-       (ctf_add_generic): Adjust.
-       (ctf_add_struct_sized): Adjust comment.
-       (ctf_add_union_sized): Likewise.
-       (ctf_add_enum): Likewise.
-       * ctf-impl.h (ctf_dtd_insert): Adjust prototype.
-
-2020-03-11  John Baldwin  <jhb@FreeBSD.org>
-
-       * swap.h (bswap_identity_64): Make static.
-
-2020-01-18  Nick Clifton  <nickc@redhat.com>
-
-       Binutils 2.34 branch created.
-
-2020-01-05  Joel Brobecker  <brobecker@adacore.com>
-
-       PR binutils/25155:
-       * configure.ac: Add AC_CHECK_DECLS([asprintf]).
-       * configure, config.h.in: Regenerate.
-
-2020-01-01  Alan Modra  <amodra@gmail.com>
+2021-01-01  Alan Modra  <amodra@gmail.com>
 
        Update year range in copyright notice of all files.
 
-2019-10-16  Simon Marchi  <simon.marchi@polymtl.ca>
-
-       * swap.h (bswap_16, bswap_32, bswap_64): Make static.
-
-2019-09-30  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (ctf_bufopen_internal): Fix tabdamage.
-       * ctf-types.c (ctf_type_lname): Likewise.
-
-2019-09-23  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (ctf_import): Do not leak a ctf_file_t ref on every
-       ctf_import after the first for a given file.
-
-2019-09-23  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_str_append_noerr): Declare.
-       * ctf-util.c (ctf_str_append_noerr): Define in terms of
-       ctf_str_append.
-       * ctf-dump.c (str_append): New, call it.
-       (ctf_dump_format_type): Use str_append, not ctf_str_append.
-       (ctf_dump_label): Likewise.
-       (ctf_dump_objts): Likewise.
-       (ctf_dump_funcs): Likewise.
-       (ctf_dump_var): Likewise.
-       (ctf_dump_member): Likewise.
-       (ctf_dump_type): Likewise.
-       (ctf_dump): Likewise.
-
-2019-09-23  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_alloc): Remove.
-       (ctf_free): Likewise.
-       (ctf_strdup): Likewise.
-       * ctf-subr.c (ctf_alloc): Remove.
-       (ctf_free): Likewise.
-       * ctf-util.c (ctf_strdup): Remove.
-
-       * ctf-create.c (ctf_serialize): Use malloc, not ctf_alloc; free, not
-       ctf_free; strdup, not ctf_strdup.
-       (ctf_dtd_delete): Likewise.
-       (ctf_dvd_delete): Likewise.
-       (ctf_add_generic): Likewise.
-       (ctf_add_function): Likewise.
-       (ctf_add_enumerator): Likewise.
-       (ctf_add_member_offset): Likewise.
-       (ctf_add_variable): Likewise.
-       (membadd): Likewise.
-       (ctf_compress_write): Likewise.
-       (ctf_write_mem): Likewise.
-       * ctf-decl.c (ctf_decl_push): Likewise.
-       (ctf_decl_fini): Likewise.
-       (ctf_decl_sprintf): Likewise.  Check for OOM.
-       * ctf-dump.c (ctf_dump_append): Use malloc, not ctf_alloc; free, not
-       ctf_free; strdup, not ctf_strdup.
-       (ctf_dump_free): Likewise.
-       (ctf_dump): Likewise.
-       * ctf-open.c (upgrade_types_v1): Likewise.
-       (init_types): Likewise.
-       (ctf_file_close): Likewise.
-       (ctf_bufopen_internal): Likewise.  Check for OOM.
-       (ctf_parent_name_set): Likewise: report the OOM to the caller.
-       (ctf_cuname_set): Likewise.
-       (ctf_import): Likewise.
-       * ctf-string.c (ctf_str_purge_atom_refs): Use malloc, not ctf_alloc;
-       free, not ctf_free; strdup, not ctf_strdup.
-       (ctf_str_free_atom): Likewise.
-       (ctf_str_create_atoms): Likewise.
-       (ctf_str_add_ref_internal): Likewise.
-       (ctf_str_remove_ref): Likewise.
-       (ctf_str_write_strtab): Likewise.
-
-2019-08-09  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_encoding): Fix the dynamic case to
-       work right for non-int/fps.
-
-2019-08-08  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_name): Don't strlen a potentially-
-       null pointer.
-
-2019-08-07  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_file_t) <ctf_add_processing>: New.
-       * ctf-open.c (ctf_file_close): Free it.
-       * ctf-create.c (ctf_serialize): Adjust.
-       (membcmp): When reporting a conflict due to an error, report the
-       error.
-       (ctf_add_type): Turn into a ctf_add_processing wrapper.  Rename to...
-       (ctf_add_type_internal): ... this.  Hand back types we are already
-       in the middle of adding immediately.  Hand back structs/unions with
-       the same number of members immediately.  Do not walk the dynamic
-       list.  Call ctf_add_type_internal, not ctf_add_type.  Handle
-       forwards promoted to other types and the inverse case identically.
-       Add structs to the mapping as soon as we intern them, before they
-       gain any members.
-
-2019-08-09  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_names_t): New.
-       (ctf_lookup_t) <ctf_hash>: Now a ctf_names_t, not a ctf_hash_t.
-       (ctf_file_t) <ctf_structs>: Likewise.
-       <ctf_unions>: Likewise.
-       <ctf_enums>: Likewise.
-       <ctf_names>: Likewise.
-       <ctf_lookups>: Improve comment.
-       <ctf_ptrtab_len>: New.
-       <ctf_prov_strtab>: New.
-       <ctf_str_prov_offset>: New.
-       <ctf_dtbyname>: Remove, redundant to the names hashes.
-       <ctf_dtnextid>: Remove, redundant to ctf_typemax.
-       (ctf_dtdef_t) <dtd_name>: Remove.
-       <dtd_data>: Note that the ctt_name is now populated.
-       (ctf_str_atom_t) <csa_offset>: This is now the strtab
-       offset for internal strings too.
-       <csa_external_offset>: New, the external strtab offset.
-       (CTF_INDEX_TO_TYPEPTR): Handle the LCTF_RDWR case.
-       (ctf_name_table): New declaration.
-       (ctf_lookup_by_rawname): Likewise.
-       (ctf_lookup_by_rawhash): Likewise.
-       (ctf_set_ctl_hashes): Likewise.
-       (ctf_serialize): Likewise.
-       (ctf_dtd_insert): Adjust.
-       (ctf_simple_open_internal): Likewise.
-       (ctf_bufopen_internal): Likewise.
-       (ctf_list_empty_p): Likewise.
-       (ctf_str_remove_ref): Likewise.
-       (ctf_str_add): Returns uint32_t now.
-       (ctf_str_add_ref): Likewise.
-       (ctf_str_add_external): Now returns a boolean (int).
-       * ctf-string.c (ctf_strraw_explicit): Check the ctf_prov_strtab
-       for strings in the appropriate range.
-       (ctf_str_create_atoms): Create the ctf_prov_strtab.  Detect OOM
-       when adding the null string to the new strtab.
-       (ctf_str_free_atoms): Destroy the ctf_prov_strtab.
-       (ctf_str_add_ref_internal): Add make_provisional argument.  If
-       make_provisional, populate the offset and fill in the
-       ctf_prov_strtab accordingly.
-       (ctf_str_add): Return the offset, not the string.
-       (ctf_str_add_ref): Likewise.
-       (ctf_str_add_external): Return a success integer.
-       (ctf_str_remove_ref): New, remove a single ref.
-       (ctf_str_count_strtab): Do not count the initial null string's
-       length or the existence or length of any unreferenced internal
-       atoms.
-       (ctf_str_populate_sorttab): Skip atoms with no refs.
-       (ctf_str_write_strtab): Populate the nullstr earlier.  Add one
-       to the cts_len for the null string, since it is no longer done
-       in ctf_str_count_strtab.  Adjust for csa_external_offset rename.
-       Populate the csa_offset for both internal and external cases.
-       Flush the ctf_prov_strtab afterwards, and reset the
-       ctf_str_prov_offset.
-       * ctf-create.c (ctf_grow_ptrtab): New.
-       (ctf_create): Call it.  Initialize new fields rather than old
-       ones.  Tell ctf_bufopen_internal that this is a writable dictionary.
-       Set the ctl hashes and data model.
-       (ctf_update): Rename to...
-       (ctf_serialize): ... this.  Leave a compatibility function behind.
-       Tell ctf_simple_open_internal that this is a writable dictionary.
-       Pass the new fields along from the old dictionary.  Drop
-       ctf_dtnextid and ctf_dtbyname.  Use ctf_strraw, not dtd_name.
-       Do not zero out the DTD's ctt_name.
-       (ctf_prefixed_name): Rename to...
-       (ctf_name_table): ... this.  No longer return a prefixed name: return
-       the applicable name table instead.
-       (ctf_dtd_insert): Use it, and use the right name table.  Pass in the
-       kind we're adding.  Migrate away from dtd_name.
-       (ctf_dtd_delete): Adjust similarly.  Remove the ref to the
-       deleted ctt_name.
-       (ctf_dtd_lookup_type_by_name): Remove.
-       (ctf_dynamic_type): Always return NULL on read-only dictionaries.
-       No longer check ctf_dtnextid: check ctf_typemax instead.
-       (ctf_snapshot): No longer use ctf_dtnextid: use ctf_typemax instead.
-       (ctf_rollback): Likewise.  No longer fail with ECTF_OVERROLLBACK. Use
-       ctf_name_table and the right name table, and migrate away from
-       dtd_name as in ctf_dtd_delete.
-       (ctf_add_generic): Pass in the kind explicitly and pass it to
-       ctf_dtd_insert. Use ctf_typemax, not ctf_dtnextid.  Migrate away
-       from dtd_name to using ctf_str_add_ref to populate the ctt_name.
-       Grow the ptrtab if needed.
-       (ctf_add_encoded): Pass in the kind.
-       (ctf_add_slice): Likewise.
-       (ctf_add_array): Likewise.
-       (ctf_add_function): Likewise.
-       (ctf_add_typedef): Likewise.
-       (ctf_add_reftype): Likewise. Initialize the ctf_ptrtab, checking
-       ctt_name rather than dtd_name.
-       (ctf_add_struct_sized): Pass in the kind.  Use
-       ctf_lookup_by_rawname, not ctf_hash_lookup_type /
-       ctf_dtd_lookup_type_by_name.
-       (ctf_add_union_sized): Likewise.
-       (ctf_add_enum): Likewise.
-       (ctf_add_enum_encoded): Likewise.
-       (ctf_add_forward): Likewise.
-       (ctf_add_type): Likewise.
-       (ctf_compress_write): Call ctf_serialize: adjust for ctf_size not
-       being initialized until after the call.
-       (ctf_write_mem): Likewise.
-       (ctf_write): Likewise.
-       * ctf-archive.c (arc_write_one_ctf): Likewise.
-       * ctf-lookup.c (ctf_lookup_by_name): Use ctf_lookuup_by_rawhash, not
-       ctf_hash_lookup_type.
-       (ctf_lookup_by_id): No longer check the readonly types if the
-       dictionary is writable.
-       * ctf-open.c (init_types): Assert that this dictionary is not
-       writable.  Adjust to use the new name hashes, ctf_name_table,
-       and ctf_ptrtab_len.  GNU style fix for the final ptrtab scan.
-       (ctf_bufopen_internal): New 'writable' parameter.  Flip on LCTF_RDWR
-       if set.  Drop out early when dictionary is writable.  Split the
-       ctf_lookups initialization into...
-       (ctf_set_cth_hashes): ... this new function.
-       (ctf_simple_open_internal): Adjust.  New 'writable' parameter.
-       (ctf_simple_open): Adjust accordingly.
-       (ctf_bufopen): Likewise.
-       (ctf_file_close): Destroy the appropriate name hashes.  No longer
-       destroy ctf_dtbyname, which is gone.
-       (ctf_getdatasect): Remove spurious "extern".
-       * ctf-types.c (ctf_lookup_by_rawname): New, look up types in the
-       specified name table, given a kind.
-       (ctf_lookup_by_rawhash): Likewise, given a ctf_names_t *.
-       (ctf_member_iter): Add support for iterating over the
-       dynamic type list.
-       (ctf_enum_iter): Likewise.
-       (ctf_variable_iter): Likewise.
-       (ctf_type_rvisit): Likewise.
-       (ctf_member_info): Add support for types in the dynamic type list.
-       (ctf_enum_name): Likewise.
-       (ctf_enum_value): Likewise.
-       (ctf_func_type_info): Likewise.
-       (ctf_func_type_args): Likewise.
-       * ctf-link.c (ctf_accumulate_archive_names): No longer call
-       ctf_update.
-       (ctf_link_write): Likewise.
-       (ctf_link_intern_extern_string): Adjust for new
-       ctf_str_add_external return value.
-       (ctf_link_add_strtab): Likewise.
-       * ctf-util.c (ctf_list_empty_p): New.
-
-2019-08-05  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_resolve): Return ECTF_NONREPRESENTABLE on
-       type zero.
-       * ctf-create.c (ctf_add_type): Detect and skip nonrepresentable
-       members and types.
-       (ctf_add_variable): Likewise for variables pointing to them.
-       * ctf-link.c (ctf_link_one_type): Do not warn for nonrepresentable
-       type link failure, but do warn for others.
-       * ctf-dump.c (ctf_dump_format_type): Likewise.  Do not assume all
-       errors to be ENOMEM.
-       (ctf_dump_member): Likewise.
-       (ctf_dump_type): Likewise.
-       (ctf_dump_header_strfield): Do not assume all errors to be ENOMEM.
-       (ctf_dump_header_sectfield): Do not assume all errors to be ENOMEM.
-       (ctf_dump_header): Likewise.
-       (ctf_dump_label): likewise.
-       (ctf_dump_objts): likewise.
-       (ctf_dump_funcs): likewise.
-       (ctf_dump_var): likewise.
-       (ctf_dump_str): Likewise.
-
-2019-09-30  Nick Alcock  <nick.alcock@oracle.com>
-
-       * configure.ac (AC_DISABLE_SHARED): New, like opcodes/.
-       (LT_INIT): Likewise.
-       (AM_INSTALL_LIBBFD): Likewise.
-       (dlopen): Note why this is necessary in a comment.
-       (SHARED_LIBADD): Initialize for possibly-PIC libiberty: derived from
-       opcodes/.
-       (SHARED_LDFLAGS): Likewise.
-       (BFD_LIBADD): Likewise, for libbfd.
-       (BFD_DEPENDENCIES): Likewise.
-       (VERSION_FLAGS): Initialize, using a version script if ld supports
-       one, or libtool -export-symbols-regex otherwise.
-       (AC_CONFIG_MACRO_DIR): Add ../BFD.
-       * Makefile.am (ACLOCAL_AMFLAGS): Likewise.
-       (INCDIR): New.
-       (AM_CPPFLAGS): Use $(srcdir), not $(top_srcdir).
-       (noinst_LIBRARIES): Replace with...
-       [INSTALL_LIBBFD] (lib_LTLIBRARIES): This, or...
-       [!INSTALL_LIBBFD] (noinst_LTLIBRARIES): ... this, mentioning new
-       libctf-nobfd.la as well.
-       [INSTALL_LIBCTF] (include_HEADERS): Add the CTF headers.
-       [!INSTALL_LIBCTF] (include_HEADERS): New, empty.
-       (libctf_a_SOURCES): Rename to...
-       (libctf_nobfd_la_SOURCES): ... this, all of libctf other than
-       ctf-open-bfd.c.
-       (libctf_la_SOURCES): Now derived from libctf_nobfd_la_SOURCES,
-       with ctf-open-bfd.c added.
-       (libctf_nobfd_la_LIBADD): New, using @SHARED_LIBADD@.
-       (libctf_la_LIBADD): New, using @BFD_LIBADD@ as well.
-       (libctf_la_DEPENDENCIES): New, using @BFD_DEPENDENCIES@.
-       * Makefile.am [INSTALL_LIBCTF]: Use it.
-       * aclocal.m4: Add ../bfd/acinclude.m4, ../config/acx.m4, and the
-       libtool macros.
-       * libctf.ver: New, everything is version LIBCTF_1.0 currently (even
-       the unstable components).
-       * Makefile.in: Regenerated.
-       * config.h.in: Likewise.
-       * configure: Likewise.
-
-2019-07-30  Nick Alcock  <nick.alcock@oracle.com>
-
-       * configure.ac (INSTALL_LIBCTF): New, controlled by
-       --enable-install-libctf.
-       [INSTALL_LIBCTF] (lib_LIBRARIES): Add libctf.a.
-       * Makefile.in: Regenerated.
-       * configure: Regenerated.
-
-2019-07-30  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c (ctf_arc_close): Call ctfi_bfd_close if set.
-       * ctf-open-bfd.c (ctf_bfdclose): Fix comment.
-
-2019-07-30  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open-bfd.c (ctf_fdopen): Call bfd_set_cacheable.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (includes): Include <sys/param.h> here.
-
-2019-07-30  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (flip_lbls): Eschew for-loop initial declarations.
-       (flip_objts): Likewise.
-       (flip_vars): Likewise.
-       (flip_types): Likewise.
-
-2019-07-30  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-hash.c (ctf_hashtab_insert): Pass in the key and value
-       freeing functions: if set, free the key and value if the slot
-       already exists.  Always reassign the key.
-       (ctf_dynhash_insert): Adjust call appropriately.
-       (ctf_hash_insert_type): Likewise.
-
-2019-08-03  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_add_type): Look up and use the forwarded-to
-       type kind.  Allow forwards to unify with pre-existing structs/
-       unions/enums.
-
-2019-07-30  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_file_t) <ctf_link_cu_mappping>: New.
-       <ctf_link_memb_name_changer>: Likewise.
-       <ctf_link_memb_name_changer_arg>: Likewise.
-       * ctf-create.c (ctf_update): Update accordingly.
-       * ctf-open.c (ctf_file_close): Likewise.
-       * ctf-link.c (ctf_create_per_cu): Apply the cu mapping.
-       (ctf_link_add_cu_mapping): New.
-       (ctf_link_set_memb_name_changer): Likewise.
-       (ctf_change_parent_name): New.
-       (ctf_name_list_accum_cb_arg_t) <dynames>: New, storage for names
-       allocated by the caller's ctf_link_memb_name_changer.
-       <ndynames>: Likewise.
-       (ctf_accumulate_archive_names): Call the ctf_link_memb_name_changer.
-       (ctf_link_write): Likewise (for _CTF_SECTION only): also call
-       ctf_change_parent_name.  Free any resulting names.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-link.c (ctf_create_per_cu): New, refactored out of...
-       (ctf_link_one_type): ... here, with parent-name setting added.
-       (check_variable): New.
-       (ctf_link_one_variable): Likewise.
-       (ctf_link_one_input_archive_member): Call it.
-       * ctf-error.c (_ctf_errlist): Updated with new errors.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_file_t): New field ctf_link_type_mapping.
-       (struct ctf_link_type_mapping_key): New.
-       (ctf_hash_type_mapping_key): Likewise.
-       (ctf_hash_eq_type_mapping_key): Likewise.
-       (ctf_add_type_mapping): Likewise.
-       (ctf_type_mapping): Likewise.
-       (ctf_dynhash_empty): Likewise.
-       * ctf-open.c (ctf_file_close): Update accordingly.
-       * ctf-create.c (ctf_update): Likewise.
-       (ctf_add_type): Populate the mapping.
-       * ctf-hash.c (ctf_hash_type_mapping_key): Hash a type mapping key.
-       (ctf_hash_eq_type_mapping_key): Check the key for equality.
-       (ctf_dynhash_insert): Fix comment typo.
-       (ctf_dynhash_empty): New.
-       * ctf-link.c (ctf_add_type_mapping): New.
-       (ctf_type_mapping): Likewise.
-       (empty_link_type_mapping): New.
-       (ctf_link_one_input_archive): Call it.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-link.c: New file, linking of the string and type sections.
-       * Makefile.am (libctf_a_SOURCES): Add it.
-       * Makefile.in: Regenerate.
-
-       * ctf-impl.h (ctf_file_t): New fields ctf_link_inputs,
-       ctf_link_outputs.
-       * ctf-create.c (ctf_update): Update accordingly.
-       * ctf-open.c (ctf_file_close): Likewise.
-       * ctf-error.c (_ctf_errlist): Updated with new errors.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c (ctf_dump_funcs): Check the right error value.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c (ctf_dump): Use ctf_type_iter_all to dump types, not
-       ctf_type_iter.
-       (ctf_dump_type): Pass down the flag from ctf_type_iter_all.
-       (ctf_dump_format_type): Add non-root-type { } notation.
-       Add root flag to prototype.
-       (ctf_dump_label): Adjust accordingly.
-       (ctf_dump_objts): Likewise.
-       (ctf_dump_var): Likewise.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_compress_write): Fix double-free.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c (ctf_arc_write): Split off, and reimplement in terms
-       of...
-       (ctf_arc_write_fd): ... this new function.
-       * ctf-create.c (ctf_write_mem): New.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_str_atom_t) <csa_offset>: New field.
-       (ctf_file_t) <ctf_syn_ext_strtab>: Likewise.
-       (ctf_str_add_ref): Name the last arg.
-       (ctf_str_add_external) New.
-       (ctf_str_add_strraw_explicit): Likewise.
-       (ctf_simple_open_internal): Likewise.
-       (ctf_bufopen_internal): Likewise.
-
-       * ctf-string.c (ctf_strraw_explicit): Split from...
-       (ctf_strraw): ... here, with new support for ctf_syn_ext_strtab.
-       (ctf_str_add_ref_internal): Return the atom, not the
-       string.
-       (ctf_str_add): Adjust accordingly.
-       (ctf_str_add_ref): Likewise.  Move up in the file.
-       (ctf_str_add_external): New: update the csa_offset.
-       (ctf_str_count_strtab): Only account for strings with no csa_offset
-       in the internal strtab length.
-       (ctf_str_write_strtab): If the csa_offset is set, update the
-       string's refs without writing the string out, and update the
-       ctf_syn_ext_strtab.  Make OOM handling less ugly.
-       * ctf-create.c (struct ctf_sort_var_arg_cb): New.
-       (ctf_update): Handle failure to populate the strtab.  Pass in the
-       new ctf_sort_var arg.  Adjust for ctf_syn_ext_strtab addition.
-       Call ctf_simple_open_internal, not ctf_simple_open.
-       (ctf_sort_var): Call ctf_strraw_explicit rather than looking up
-       strings by hand.
-       * ctf-hash.c (ctf_hash_insert_type): Likewise (but using
-       ctf_strraw).  Adjust to diagnose ECTF_STRTAB nonetheless.
-       * ctf-open.c (init_types): No longer filter out ECTF_STRTAB.
-       (ctf_file_close): Destroy the ctf_syn_ext_strtab.
-       (ctf_simple_open): Rename to, and reimplement as a wrapper around...
-       (ctf_simple_open_internal): ... this new function, which calls
-       ctf_bufopen_internal.
-       (ctf_bufopen): Rename to, and reimplement as a wrapper around...
-       (ctf_bufopen_internal): ... this new function, which sets
-       ctf_syn_ext_strtab.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf_types.c (ctf_type_iter_all): New.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (init_symtab): Check for overflow against the right
-       section.
-       (upgrade_header): Set cth_objtidxoff, cth_funcidxoff to zero-length.
-       (upgrade_types_v1): Note that these sections are not checked.
-       (flip_header): Endian-swap the header fields.
-       (flip_ctf): Endian-swap the sections.
-       (flip_objts): Update comment.
-       (ctf_bufopen): Check header offsets and alignment for validity.
-
-2019-07-13  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open-bfd.c: Add <assert.h>.
-       (ctf_bfdopen_ctfsect): Open string and symbol tables using
-       techniques borrowed from bfd_elf_sym_name.
-       (ctf_new_archive_internal): Improve comment.
-       * ctf-archive.c (ctf_arc_close): Do not free the ctfi_strsect.
-       * ctf-open.c (ctf_bufopen): Allow opening with a string section but
-       no symbol section, but not vice versa.
-
-2019-07-08  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_file_t): New field ctf_openflags.
-       * ctf-open.c (ctf_bufopen): Set it.  No longer dump header offsets.
-       * ctf-dump.c (dump_header): New function, dump the CTF header.
-       (ctf_dump): Call it.
-       (ctf_dump_header_strfield): New function.
-       (ctf_dump_header_sectfield): Likewise.
-
-2019-07-06  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_file_t): New fields ctf_header, ctf_dynbase,
-       ctf_cuname, ctf_dyncuname: ctf_base and ctf_buf are no longer const.
-       * ctf-open.c (ctf_set_base): Preserve the gap between ctf_buf and
-       ctf_base: do not assume that it is always sizeof (ctf_header_t).
-       Print out ctf_cuname: only print out ctf_parname if set.
-       (ctf_free_base): Removed, ctf_base is no longer freed: free
-       ctf_dynbase instead.
-       (ctf_set_version): Fix spacing.
-       (upgrade_header): New, in-place header upgrading.
-       (upgrade_types): Rename to...
-       (upgrade_types_v1): ... this.  Free ctf_dynbase, not ctf_base.  No
-       longer track old and new headers separately.  No longer allow for
-       header sizes explicitly: squeeze the headers out on upgrade (they
-       are preserved in fp->ctf_header).  Set ctf_dynbase, ctf_base and
-       ctf_buf explicitly.  Use ctf_free, not ctf_free_base.
-       (upgrade_types): New, also handle ctf_parmax updating.
-       (flip_header): Flip ctf_cuname.
-       (flip_types): Flip BUF explicitly rather than deriving BUF from
-       BASE.
-       (ctf_bufopen): Store the header in fp->ctf_header.  Correct minimum
-       required alignment of objtoff and funcoff.  No longer store it in
-       the ctf_buf unless that buf is derived unmodified from the input.
-       Set ctf_dynbase where ctf_base is dynamically allocated. Drop locals
-       that duplicate fields in ctf_file: move allocation of ctf_file
-       further up instead.  Call upgrade_header as needed.  Move
-       version-specific ctf_parmax initialization into upgrade_types.  More
-       concise error handling.
-       (ctf_file_close): No longer test for null pointers before freeing.
-       Free ctf_dyncuname, ctf_dynbase, and ctf_header.  Do not call
-       ctf_free_base.
-       (ctf_cuname): New.
-       (ctf_cuname_set): New.
-       * ctf-create.c (ctf_update): Populate ctf_cuname.
-       (ctf_gzwrite): Write out the header explicitly.  Remove obsolescent
-       comment.
-       (ctf_write): Likewise.
-       (ctf_compress_write): Get the header from ctf_header, not ctf_base.
-       Fix the compression length: fp->ctf_size never counted the CTF
-       header.  Simplify the compress call accordingly.
-
-2019-07-11  Hans-Peter Nilsson  <hp@bitrange.com>
-
-       * ctf-endian.h: Don't assume htole64 and le64toh are always
-       present if HAVE_ENDIAN_H; also check if htole64 is defined.
-       [!WORDS_BIGENDIAN] (htole64, le64toh): Define as identity,
-       not bswap_identity_64.
-
-2019-09-18  Alan Modra  <amodra@gmail.com>
-
-       * ctf-open-bfd.c: Update throughout for bfd section macro changes.
-
-2019-09-09  Phil Blundell  <pb@pbcl.net>
-
-       binutils 2.33 branch created.
-
-2019-07-18  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-types.c (ctf_type_aname_raw): New.
-       (ctf_func_type_info): Likewise.
-       (ctf_func_type_args): Likewise.
-       * ctf-error.c (_ctf_errlist): Fix description.
-       * ctf-lookup.c: Fix file description.
-
-2019-06-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_create): Fix off-by-one error.
-
-2019-06-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h: (struct ctf_strs_writable): New, non-const version of
-       struct ctf_strs.
-       (struct ctf_dtdef): Note that dtd_data.ctt_name is unpopulated.
-       (struct ctf_str_atom): New, disambiguated single string.
-       (struct ctf_str_atom_ref): New, points to some other location that
-       references this string's offset.
-       (struct ctf_file): New members ctf_str_atoms and ctf_str_num_refs.
-       Remove member ctf_dtvstrlen: we no longer track the total strlen
-       as we add strings.
-       (ctf_str_create_atoms): Declare new function in ctf-string.c.
-       (ctf_str_free_atoms): Likewise.
-       (ctf_str_add): Likewise.
-       (ctf_str_add_ref): Likewise.
-       (ctf_str_rollback): Likewise.
-       (ctf_str_purge_refs): Likewise.
-       (ctf_str_write_strtab): Likewise.
-       (ctf_realloc): Declare new function in ctf-util.c.
-
-       * ctf-open.c (ctf_bufopen): Create the atoms table.
-       (ctf_file_close): Destroy it.
-       * ctf-create.c (ctf_update): Copy-and-free it on update.  No longer
-       special-case the position of the parname string.  Construct the
-       strtab by calling ctf_str_add_ref and ctf_str_write_strtab after the
-       rest of each buffer element is constructed, not via open-coding:
-       realloc the CTF buffer and append the strtab to it.  No longer
-       maintain ctf_dtvstrlen.  Sort the variable entry table later, after
-       strtab construction.
-       (ctf_copy_membnames): Remove: integrated into ctf_copy_{s,l,e}members.
-       (ctf_copy_smembers): Drop the string offset: call ctf_str_add_ref
-       after buffer element construction instead.
-       (ctf_copy_lmembers): Likewise.
-       (ctf_copy_emembers): Likewise.
-       (ctf_create): No longer maintain the ctf_dtvstrlen.
-       (ctf_dtd_delete): Likewise.
-       (ctf_dvd_delete): Likewise.
-       (ctf_add_generic): Likewise.
-       (ctf_add_enumerator): Likewise.
-       (ctf_add_member_offset): Likewise.
-       (ctf_add_variable): Likewise.
-       (membadd): Likewise.
-       * ctf-util.c (ctf_realloc): New, wrapper around realloc that aborts
-       if there are active ctf_str_num_refs.
-       (ctf_strraw): Move to ctf-string.c.
-       (ctf_strptr): Likewise.
-       * ctf-string.c: New file, strtab manipulation.
-
-       * Makefile.am (libctf_a_SOURCES): Add it.
-       * Makefile.in: Regenerate.
-
-2019-06-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (ctf_hash_iter_f): New.
-       (ctf_dynhash_iter): New declaration.
-       (ctf_dynhash_iter_remove): New declaration.
-       * ctf-hash.c (ctf_dynhash_iter): Define.
-       (ctf_dynhash_iter_remove): Likewise.
-       (ctf_hashtab_traverse): New.
-       (ctf_hashtab_traverse_remove): Likewise.
-       (struct ctf_traverse_cb_arg): Likewise.
-       (struct ctf_traverse_remove_cb_arg): Likewise.
-
-2019-06-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-hash.c (ctf_dynhash_remove): Call with a mocked-up element.
-
-2019-06-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c (ctf_dump_format_type): Prefix hex strings with 0x.
-       (ctf_dump_funcs): Likewise.
-
-2019-06-19  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open-bfd.c: Add swap.h and ctf-endian.h.
-       (ctf_fdopen): Check for endian-swapped raw CTF magic, and
-       little-endian CTF archive magic.  Do not check the CTF version:
-       ctf_simple_open does that in endian-safe ways.  Do not dereference
-       null pointers on open failure.
-
-2019-06-19  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (get_vbytes_common): Return the new slice size.
-       (ctf_bufopen): Flip the endianness of the CTF-section header copy.
-       Remember to copy in the CTF data when opening an uncompressed
-       foreign-endian CTF file.  Prune useless variable manipulation.
-
-2019-06-19  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (ctf_types): Fail when unidentified type kinds are
-       seen.
-
-2019-06-19  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c (ctf_bufopen): Dump header offsets into the debugging
-       output.
-
-2019-06-19  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-subr.c (_PAGESIZE): Remove.
-       (ctf_data_alloc): Likewise.
-       (ctf_data_free): Likewise.
-       (ctf_data_protect): Likewise.
-       * ctf-impl.h: Remove declarations.
-       * ctf-create.c (ctf_update): No longer call ctf_data_protect: use
-       ctf_free, not ctf_data_free.
-       (ctf_compress_write): Use ctf_data_alloc, not ctf_alloc.  Free
-       the buffer again on compression error.
-       * ctf-open.c (ctf_set_base): No longer track the size: call
-       ctf_free, not ctf_data_free.
-       (upgrade_types): Likewise.  Call ctf_alloc, not ctf_data_alloc.
-       (ctf_bufopen): Likewise.  No longer call ctf_data_protect.
-
-2019-06-19  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (ctf_dtd_insert): Pass on error returns from
-       ctf_dynhash_insert.
-       (ctf_dvd_insert): Likewise.
-       (ctf_add_generic): Likewise.
-       (ctf_add_variable): Likewise.
-       * ctf-impl.h: Adjust declarations.
-
-2019-06-14  Alan Modra  <amodra@gmail.com>
-
-       * configure: Regenerate.
-
-2019-06-06  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-decls.h: Include <libiberty.h>.
-       * ctf-lookup.c (ctf_lookup_by_name): Call xstrndup(), not strndup().
-
-2019-06-06  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c (ctf_dump_format_type): Cast size_t's used in printf()s.
-       (ctf_dump_objts): Likewise.
-       (ctf_dump_funcs): Likewise.
-       (ctf_dump_member): Likewise.
-       (ctf_dump_str): Likewise.
-
-2019-06-06  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c (arc_mmap_header): Mark fd as potentially unused.
-       * ctf-subr.c (ctf_data_protect): Mark both args as potentially unused.
-
-2019-06-05  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c (ctf_arc_write): Eschew %zi format specifier.
-       (ctf_arc_open_by_offset): Likewise.
-       * ctf-create.c (ctf_add_type): Likewise.
-
-2019-06-04  Tom Tromey  <tromey@adacore.com>
-
-       * ctf-create.c (ctf_add_encoded, ctf_add_slice)
-       (ctf_add_member_offset): Use CHAR_BIT, not NBBY.
-
-2019-06-04  Nick Alcock  <nick.alcock@oracle.com>
-
-       * configure.ac: Check for O_CLOEXEC.
-       * ctf-decls.h (O_CLOEXEC): Define (to 0), if need be.
-       * config.h.in: Regenerate.
-       * configure: Likewise.
-
-2019-06-04  Nick Alcock  <nick.alcock@oracle.com>
-
-       * qsort_r.c: Rename to...
-       * ctf-qsort_r.c: ... this.
-       (_quicksort): Define to ctf_qsort_r.
-       * ctf-decls.h (qsort_r): Remove.
-       (ctf_qsort_r): Add.
-       (struct ctf_qsort_arg): New, transport the real ARG and COMPAR.
-       (ctf_qsort_compar_thunk): Rearrange the arguments to COMPAR.
-       * Makefile.am (libctf_a_LIBADD): Remove.
-       (libctf_a_SOURCES): New, add ctf-qsort_r.c.
-       * ctf-archive.c (ctf_arc_write): Call ctf_qsort_r, not qsort_r.
-       * ctf-create.c (ctf_update): Likewise.
-       * configure.ac: Check for BSD versus GNU qsort_r signature.
-       * Makefile.in: Regenerate.
-       * config.h.in: Likewise.
-       * configure: Likewise.
-
-2019-06-03  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c (ctf_dump_funcs): Free in the right place.
-
-2019-05-29  Nick Alcock  <nick.alcock@oracle.com>
-
-       * Makefile.am (ZLIB): New.
-       (ZLIBINC): Likewise.
-       (AM_CFLAGS): Use them.
-       (libctf_a_LIBADD): New, for LIBOBJS.
-       * configure.ac: Check for zlib, endian.h, and qsort_r.
-       * ctf-endian.h: New, providing htole64 and le64toh.
-       * swap.h: Code style fixes.
-       (bswap_identity_64): New.
-       * qsort_r.c: New, from gnulib (with one added #include).
-       * ctf-decls.h: New, providing a conditional qsort_r declaration,
-       and unconditional definitions of MIN and MAX.
-       * ctf-impl.h: Use it.  Do not use <sys/errno.h>.
-       (ctf_set_errno): Now returns unsigned long.
-       * ctf-util.c (ctf_set_errno): Adjust here too.
-       * ctf-archive.c: Use ctf-endian.h.
-       (ctf_arc_open_by_offset): Use memset, not bzero.  Drop cts_type,
-       cts_flags and cts_offset.
-       (ctf_arc_write): Drop debugging dependent on the size of off_t.
-       * ctf-create.c: Provide a definition of roundup if not defined.
-       (ctf_create): Drop cts_type, cts_flags and cts_offset.
-       (ctf_add_reftype): Do not check if type IDs are below zero.
-       (ctf_add_slice): Likewise.
-       (ctf_add_typedef): Likewise.
-       (ctf_add_member_offset): Cast error-returning ssize_t's to size_t
-       when known error-free.  Drop CTF_ERR usage for functions returning
-       int.
-       (ctf_add_member_encoded): Drop CTF_ERR usage for functions returning
-       int.
-       (ctf_add_variable): Likewise.
-       (enumcmp): Likewise.
-       (enumadd): Likewise.
-       (membcmp): Likewise.
-       (ctf_add_type): Likewise.  Cast error-returning ssize_t's to size_t
-       when known error-free.
-       * ctf-dump.c (ctf_is_slice): Drop CTF_ERR usage for functions
-       returning int: use CTF_ERR for functions returning ctf_type_id.
-       (ctf_dump_label): Likewise.
-       (ctf_dump_objts): Likewise.
-       * ctf-labels.c (ctf_label_topmost): Likewise.
-       (ctf_label_iter): Likewise.
-       (ctf_label_info): Likewise.
-       * ctf-lookup.c (ctf_func_args): Likewise.
-       * ctf-open.c (upgrade_types): Cast to size_t where appropriate.
-       (ctf_bufopen): Likewise.  Use zlib types as needed.
-       * ctf-types.c (ctf_member_iter): Drop CTF_ERR usage for functions
-       returning int.
-       (ctf_enum_iter): Likewise.
-       (ctf_type_size): Likewise.
-       (ctf_type_align): Likewise.  Cast to size_t where appropriate.
-       (ctf_type_kind_unsliced): Likewise.
-       (ctf_type_kind): Likewise.
-       (ctf_type_encoding): Likewise.
-       (ctf_member_info): Likewise.
-       (ctf_array_info): Likewise.
-       (ctf_enum_value): Likewise.
-       (ctf_type_rvisit): Likewise.
-       * ctf-open-bfd.c (ctf_bfdopen): Drop cts_type, cts_flags and
-       cts_offset.
-       (ctf_simple_open): Likewise.
-       (ctf_bfdopen_ctfsect): Likewise.  Set cts_size properly.
-       * Makefile.in: Regenerate.
-       * aclocal.m4: Likewise.
-       * config.h: Likewise.
-       * configure: Likewise.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * configure.in: Check for bfd_section_from_elf_index.
-       * configure: Regenerate.
-       * config.h.in [HAVE_BFD_ELF]: Likewise.
-       * libctf/ctf_open_bfd (ctf_bfdopen_ctfsect): Use it.
-       abfd is potentially unused now.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * Makefile.am: New.
-       * Makefile.in: Regenerated.
-       * config.h.in: Likewise.
-       * aclocal.m4: Likewise.
-       * configure: Likewise.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-dump.c: New.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-labels.c: New.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h (_libctf_version): New declaration.
-       * ctf-subr.c (_libctf_version): Define it.
-       (ctf_version): New.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c (enumcmp): New.
-       (enumadd): Likewise.
-       (membcmp): Likewise.
-       (membadd): Likewise.
-       (ctf_add_type): Likewise.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-lookup.c (isqualifier): New.
-       (ctf_lookup_by_name): Likewise.
-       (struct ctf_lookup_var_key): Likewise.
-       (ctf_lookup_var): Likewise.
-       (ctf_lookup_variable): Likewise.
-       (ctf_lookup_symbol_name): Likewise.
-       (ctf_lookup_by_symbol): Likewise.
-       (ctf_func_info): Likewise.
-       (ctf_func_args): Likewise.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-decl.c: New file.
-       * ctf-types.c: Likewise.
-       * ctf-impl.h: New declarations.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open-bfd.c: New file.
-       * ctf-open.c (ctf_close): New.
-       * ctf-impl.h: Include bfd.h.
-       (ctf_file): New members ctf_data_mmapped, ctf_data_mmapped_len.
-       (ctf_archive_internal): New members ctfi_abfd, ctfi_data,
-       ctfi_bfd_close.
-       (ctf_bfdopen_ctfsect): New declaration.
-       (_CTF_SECTION): likewise.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-archive.c: New.
-       * ctf-impl.h (ctf_archive_internal): New type.
-       (ctf_arc_open_internal): New declaration.
-       (ctf_arc_bufopen): Likewise.
-       (ctf_arc_close_internal): Likewise.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-open.c: New file.
-       * swap.h: Likewise.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-create.c: New file.
-       * ctf-lookup.c: New file.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-impl.h: New definitions and declarations for type creation
-       and lookup.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-hash.c: New file.
-       * ctf-impl.h: New declarations.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-error.c: New file.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
-
-       * ctf-util.c: New file.
-       * elf.h: Likewise.
-       * ctf-impl.h: Include it, and add declarations.
-
-2019-05-28  Nick Alcock  <nick.alcock@oracle.com>
+For older changes see ChangeLog-2020
+\f
+Copyright (C) 2021 Free Software Foundation, Inc.
 
-       * ctf-impl.h: New file.
-       * ctf-subr.c: New file.
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.
 
-\f
 Local Variables:
 mode: change-log
 left-margin: 8
-fill-column: 76
+fill-column: 74
 version-control: never
 End: