+2020-12-01 JeanHeyd Meneide <phdofthehouse@gmail.com>
+
+ * charset.c (init_iconv_desc): Initialize "to" and "from" fields.
+ * directives.c (cpp_get_narrow_charset_name): New function.
+ (cpp_get_wide_charset_name): Likewise.
+ * include/cpplib.h (cpp_get_narrow_charset_name): Prototype.
+ (cpp_get_wide_charset_name): Likewise.
+ * internal.h (cset_converter): Add "to" and "from" fields.
+
+2020-11-27 Joseph Myers <joseph@codesourcery.com>
+
+ PR preprocessor/97602
+ * directives.c (strtolinenum): Check for overflow before it
+ occurs. Correct comment.
+
+2020-11-24 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (struct cpp_hashnode): Add deferred field.
+ (cpp_set_deferred_macro): Define.
+ (cpp_get_deferred_macro): Declare.
+ (cpp_macro_definition): Reformat, add overload.
+ (cpp_macro_definition_location): Deal with deferred macro.
+ (cpp_alloc_token_string, cpp_compare_macro): Declare.
+ * internal.h (_cpp_notify_macro_use): Return bool
+ (_cpp_maybe_notify_macro_use): Likewise.
+ * directives.c (do_undef): Check macro is not undef before
+ warning.
+ (do_ifdef, do_ifndef): Deal with deferred macro.
+ * expr.c (parse_defined): Likewise.
+ * lex.c (cpp_allocate_token_string): Break out of ...
+ (create_literal): ... here. Call it.
+ (cpp_maybe_module_directive): Deal with deferred macro.
+ * macro.c (cpp_get_token_1): Deal with deferred macro.
+ (warn_of_redefinition): Deal with deferred macro.
+ (compare_macros): Rename to ...
+ (cpp_compare_macro): ... here. Make extern.
+ (cpp_get_deferred_macro): New.
+ (_cpp_notify_macro_use): Deal with deferred macro, return bool
+ indicating definedness.
+ (cpp_macro_definition): Deal with deferred macro.
+
+2020-11-19 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (enum cpp_main_search): New.
+ (struct cpp_options): Add main_search field.
+ (cpp_main_loc): Declare.
+ (cpp_retrofit_as_include): Declare.
+ * internal.h (struct cpp_reader): Add main_loc field.
+ (_cpp_in_main_source_file): Not main if main is a header.
+ * init.c (cpp_read_main_file): Use main_search option to locate
+ main file. Set main_loc
+ * files.c (cpp_retrofit_as_include): New.
+
+2020-11-19 Nathan Sidwell <nathan@acm.org>
+
+ * internal.h (cpp_in_system_header): Rename to ...
+ (_cpp_in_system_header): ... here.
+ (cpp_in_primary_file): Rename to ...
+ (_cpp_in_main_source_file): ... here. Compare main_file equality
+ and check main_search value.
+ * lex.c (maybe_va_opt_error, _cpp_lex_direct): Adjust for rename.
+ * macro.c (_cpp_builtin_macro_text): Likewise.
+ (replace_args): Likewise.
+ * directives.c (do_include_next): Likewise.
+ (do_pragma_once, do_pragma_system_header): Likewise.
+ * files.c (struct _cpp_file): Delete main_file field.
+ (pch_open): Check pfile->main_file equality.
+ (make_cpp_file): Drop cpp_reader parm, don't set main_file.
+ (_cpp_find_file): Adjust.
+ (_cpp_stack_file): Check pfile->main_file equality.
+ (struct report_missing_guard_data): Add cpp_reader field.
+ (report_missing_guard): Check pfile->main_file equality.
+ (_cpp_report_missing_guards): Adjust.
+
+2020-11-18 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (struct cpp_options): Add module_directives
+ option.
+ (NODE_MODULE): New node flag.
+ (struct cpp_hashnode): Make rid-code a bitfield, increase bits in
+ flags and swap with type field.
+ * init.c (post_options): Create module-directive identifier nodes.
+ * internal.h (struct lexer_state): Add directive_file_token &
+ n_modules fields. Add module node enumerator.
+ * lex.c (cpp_maybe_module_directive): New.
+ (_cpp_lex_token): Call it.
+ (cpp_output_token): Add '"' around CPP_HEADER_NAME token.
+ (do_peek_ident, do_peek_module): New.
+ (cpp_directives_only): Detect module-directive lines.
+ * macro.c (cpp_get_token_1): Deal with directive_file_token
+ triggering.
+
+2020-11-18 Nathan Sidwell <nathan@acm.org>
+
+ * files.c (struct _cpp_file): Add header_unit field.
+ (_cpp_stack_file): Add header unit support.
+ (cpp_find_header_unit): New.
+ * include/cpplib.h (cpp_find_header_unit): Declare.
+
+2020-11-18 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (struct cpp_options): Add modules to
+ dep-options.
+ * include/mkdeps.h (deps_add_module_target): Declare.
+ (deps_add_module_dep): Declare.
+ * mkdeps.c (class mkdeps): Add modules, module_name, cmi_name,
+ is_header_unit fields. Adjust cdtors.
+ (deps_add_module_target, deps_add_module_dep): New.
+ (make_write): Write module dependencies, if enabled.
+
+2020-11-17 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (struct cpp_callbacks): Add
+ user_deferred_macro & translate_include.
+
+2020-11-17 Nathan Sidwell <nathan@acm.org>
+
+ * include/line-map.h (enum lc_reason): Add LC_MODULE.
+ (MAP_MODULE_P): New.
+ (line_map_new_raw): Declare.
+ (linemap_enter_macro): Move declaration from internal.h
+ (linemap_module_loc, linemap_module_reparent)
+ (linemap_module_restore): Declare.
+ (linemap_lookup_macro_indec): Declare.
+ * internal.h (linemap_enter_macro): Moved to line-map.h.
+ * line-map.c (linemap_new_raw): New, broken out of ...
+ (new_linemap): ... here. Call it.
+ (LAST_SOURCE_LINE_LOCATION): New.
+ (liemap_module_loc, linemap_module_reparent)
+ (linemap_module_restore): New.
+ (linemap_lookup_macro_index): New, broken out of ...
+ (linemap_macro_map_lookup): ... here. Call it.
+ (linemap_dump): Add module dump.
+
+2020-11-17 Nathan Sidwell <nathan@acm.org>
+
+ PR preprocessor/97858
+ * mkdeps.c (munge): Drop varadic args, we only ever use one.
+
+2020-11-13 Joseph Myers <joseph@codesourcery.com>
+
+ * expr.c (cpp_classify_number): Update diagnostic for binary
+ constants for C. Also diagnose binary constants for
+ -Wc11-c2x-compat.
+ * init.c (lang_defaults): Enable binary constants for GNUC2X and
+ STDC2X.
+
+2020-11-13 Piotr H. Dabrowski <phd@phd.re>
+
+ PR c++/91318
+ * include/cpplib.h: Added cpp_define_unused(), cpp_define_formatted_unused()
+ * directives.c: Likewise.
+
+2020-11-12 Joseph Myers <joseph@codesourcery.com>
+
+ * include/cpplib.h (struct cpp_callbacks): Add bool argument to
+ has_attribute.
+ (enum cpp_builtin_type): Add BT_HAS_STD_ATTRIBUTE.
+ * init.c (builtin_array): Add __has_c_attribute.
+ (cpp_init_special_builtins): Handle BT_HAS_STD_ATTRIBUTE.
+ * macro.c (_cpp_builtin_macro_text): Handle BT_HAS_STD_ATTRIBUTE.
+ Update call to has_attribute for BT_HAS_ATTRIBUTE.
+ * traditional.c (fun_like_macro): Handle BT_HAS_STD_ATTRIBUTE.
+
+2020-11-12 Nicholas Guriev <guriev-ns@ya.ru>
+
+ PR pch/86674
+ * files.c (_cpp_find_file): Use CPP_DL_NOTE not CPP_DL_ERROR in call to
+ cpp_error.
+
+2020-11-07 Lewis Hyatt <lhyatt@gmail.com>
+
+ * generated_cpp_wcwidth.h: Regenerated from Unicode 13.0.0 data.
+
+2020-11-06 Nathan Sidwell <nathan@acm.org>
+
+ * include/cpplib.h (enum class CPP_time_kind): New.
+ (cpp_get_date): Declare.
+ * internal.h (struct cpp_reader): Replace source_date_epoch with
+ time_stamp and time_stamp_kind.
+ * init.c (cpp_create_reader): Initialize them.
+ * macro.c (_cpp_builtin_macro_text): Use cpp_get_date.
+ (cpp_get_date): Broken out from _cpp_builtin_macro_text and
+ genericized.
+
+2020-11-03 Nathan Sidwell <nathan@acm.org>
+
+ * lex.c (cpp_peek_token): Do not peek past CPP_PRAGMA.
+ (_cpp_lex_direct): Handle EOF in pragma when setting need_line,
+ not when needing a line.
+
+2020-11-03 Nathan Sidwell <nathan@acm.org>
+
+ * lex.c (_cpp_clean_line): Fix DOS off-by-one error.
+
+2020-11-03 Nathan Sidwell <nathan@acm.org>
+
+ * init.c (cpp_read_main_file): Use cpp_get_deps result.
+
+2020-11-03 Nathan Sidwell <nathan@acm.org>
+
+ * include/mkdeps.h: Include cpplib.h
+ (deps_write): Adjust first parm type.
+ * mkdeps.c: Include internal.h
+ (make_write): Adjust first parm type. Check phony option
+ directly.
+ (deps_write): Adjust first parm type.
+ * init.c (cpp_read_main_file): Use get_deps.
+ * directives.c (cpp_get_deps): Check option before initializing.
+
+2020-11-02 Nathan Sidwell <nathan@acm.org>
+
+ * internal.h (_cpp_notify_macro_use): Add location parm.
+ (_cpp_maybe_notify_macro_use): Likewise.
+ * directives.c (_cpp_do_file_change): Check we've not changed file
+ when optimizing a rewind.
+ (do_ifdef): Pass location to _cpp_maybe_notify_macro_use.
+ (do_ifndef): Likewise. Delete obsolete comment about powerpc.
+ * expr.c (parse_defined): Pass location to
+ _cpp_maybe_notify_macro_use.
+ * macro.c (enter_macro_context): Likewise.
+ (warn_of_redefinition): Break out helper function. Call it.
+ (compare_macros): New function broken out of warn_of_redefinition.
+ (_cpp_new_macro): Zero all fields.
+ (_cpp_notify_macro_use): Add location parameter.
+
+2020-10-20 Nathan Sidwell <nathan@acm.org>
+
+ * lex.c (_cpp_lex_direct): Do not complete EOF processing when
+ parsing_args.
+ * macro.c (collect_args): Do not unwind fake EOF.
+ (funlike_invocation_p): Do not unwind fake EOF.
+ (cpp_context): Replace abort with gcc_assert.
+
2020-10-19 Nathan Sidwell <nathan@acm.org>
* internal.h (struct cpp_reader): Rename 'eof' field to 'endarg'.
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