Index: ChangeLog

2003-07-10  Geoffrey Keating  <geoffk@apple.com>

	* c-decl.c (finish_decl): Handle 'used' here...
	* cgraphunit.c (cgraph_finalize_function): ... and here ...
	* c-common.c: (handle_used_attribute): ... not here.

	* configure.in (onstep): Support --enable-intermodule.
	* Makefile.in (OBJS-common): New.
	(OBJS-md): New.
	(OBJS-archive): New.
	(OBJS): Build from OBJS-common, OBJS-md, OBJS-archive.
	(OBJS-onestep): New.
	(libbackend.a): Support @onestep@.
	(libbackend.o): New.
	* configure: Regenerate.

	* c-common.h (c_reset_state): New prototype.
	(c_parse_file): New prototype.
	(finish_file): Move prototype from c-tree.h.
	* c-decl.c: Include <hashtab.h>.
	(builtin_decls): New.
	(current_file_decl): New.
	(duplicate_decls): Add extra parameter. Change all callers.  Don't
	output duplicate common symbols.
	(link_hash_hash): New.
	(link_hash_eq): New.
	(poplevel): Handle popping of the top level.
	(warn_if_shadowing): Handle TRANSLATION_UNIT_DECL.
	(pushdecl): Set DECL_CONTEXT to TRANSLATION_UNIT_DECL if appropriate.
	(pushdecl_top_level): Likewise.
	(redeclaration_error_message): Handle TRANSLATION_UNIT_DECL.
	(c_init_decl_processing): Create TRANSLATION_UNIT_DECL.
	(finish_decl): Handle TRANSLATION_UNIT_DECL.
	(merge_translation_unit_decls): New.
	(c_write_global_declarations): New.
	(c_reset_state): New.
	(implicitly_declare): Handle TRANSLATION_UNIT_DECL.
	* c-lang.c (LANG_HOOKS_WRITE_GLOBALS): New.
	* c-objc-common.c (c_cannot_inline_tree_fn): Handle
	TRANSLATION_UNIT_DECL.
	(c_objc_common_finish_file): Call merge_translation_unit_decls.
	* c-opts.c (in_fnames): Rename from in_fname.
	(c_common_decode_option): Handle multiple input filenames.
	(c_common_post_options): Likewise.
	(c_common_parse_file): Likewise; also, call c_parse_file rather than
	yyparse.
	* c-parse.in: Move cleanup code to c_parse_file.
	(free_parser_stacks): Move contents to c_parse_file.
	(c_parse_file): New.
	* c-tree.h (union lang_tree_node): Chain along TYPE_NEXT_VARIANT
	for integer types.
	(C_DECL_FILE_SCOPE): New.
	(finish_file): Move prototype to c-common.h.
	(merge_translation_unit_decls): New prototype.
	(comptypes): Add extra parameter to prototype.
	(c_write_global_declarations): New prototype.
	* c-typeck.c (tagged_types_tu_compatible_p): New.
	(function_types_compatible_p): Add extra parameter, change all callers.
	(type_lists_compatible_p): Likewise.
	(comptypes): Likewise.
	(struct tagged_tu_seen): New.
	(tagged_tu_seen_base): New.
	(build_unary_op): Handle TRANSLATION_UNIT_DECL.
	(c_mark_addressable): Remove #if 0 code.
	* calls.c (special_function_p): Handle TRANSLATION_UNIT_DECL, add
	comment explaining why it shouldn't have to.
	* cgraph.h (struct cgraph_node): Add chain_next and chain_prev GTY
	options.
	* cppinit.c (cpp_read_next_file): New.
	(cpp_read_main_file): Use it.
	* cpplib.c (undefine_macros): New.
	(cpp_undef_all): New.
	* cpplib.h (cpp_read_next_file): Prototype.
	(cpp_undef_all): Prototype.
	* langhooks-def.h (write_global_declarations): Remove prototype.
	* toplev.h (write_global_declarations): Add prototype.
	* tree.c (decl_type_context): Use switch statement, handle
	TRANSLATION_UNIT_DECL.
	* tree.def: Update documentation for TRANSLATION_UNIT_DECL.
	(TRANSLATION_UNIT_DECL): New kind of tree.
	* tree.h: Update documentation for TRANSLATION_UNIT_DECL.
	* Makefile.in (c-decl.o): Add $(HASHTAB_H) to dependencies.
	* doc/invoke.texi: Make attempt to document new functionality.

	2003-05-19  Per Bothner <bothner@apple.com>

	* gcc.c (combine_inputs): New.
	(process_command): Set combine_inputs.
	(do_spec_1): Handle combine_inputs.
	(main): Likewise.

Index: cp/ChangeLog
2003-07-10  Geoffrey Keating  <geoffk@apple.com>

	* decl.c (cp_finish_decl): Handle 'used' attribute.

	* cp-lang.c (c_reset_state): New dummy routine.
	* cp-tree.h (finish_file): Move prototype to c-common.h.
	* parser.c (c_parse_file): Rename from yyparse; don't call finish_file.

From-SVN: r69224

1 files changed, 40 insertions, 0 deletions

diff --git a/gcc/cpplib.c b/gcc/cpplib.c
index 1dfef72..f009681 100644
--- a/gcc/cpplib.c
+++ b/gcc/cpplib.c
@@ -109,6 +109,7 @@ static unsigned int read_flag (cpp_reader *, unsigned int);
 static int strtoul_for_line (const uchar *, unsigned int, unsigned long *);
 static void do_diagnostic (cpp_reader *, int, int);
 static cpp_hashnode *lex_macro_node (cpp_reader *);
+static int undefine_macros (cpp_reader *, cpp_hashnode *, void *);
 static void do_include_common (cpp_reader *, enum include_type);
 static struct pragma_entry *lookup_pragma_entry (struct pragma_entry *,
                                                  const cpp_hashnode *);
@@ -540,6 +541,45 @@ do_undef (cpp_reader *pfile)
   check_eol (pfile);
 }
 
+/* Undefine a single macro/assertion/whatever.  */
+
+static int
+undefine_macros (cpp_reader *pfile, cpp_hashnode *h, 
+		 void *data_p ATTRIBUTE_UNUSED)
+{
+  switch (h->type)
+    {
+    case NT_VOID:
+      break;
+      
+    case NT_MACRO:
+      if (pfile->cb.undef)
+        (*pfile->cb.undef) (pfile, pfile->directive_line, h);
+
+      if (CPP_OPTION (pfile, warn_unused_macros))
+        _cpp_warn_if_unused_macro (pfile, h, NULL);
+
+      /* and fall through... */
+    case NT_ASSERTION:
+      _cpp_free_definition (h);
+      break;
+
+    default:
+      abort ();
+    }
+  h->flags &= ~NODE_POISONED;
+  return 1;
+}
+
+/* Undefine all macros and assertions.  */
+
+void
+cpp_undef_all (cpp_reader *pfile)
+{
+  cpp_forall_identifiers (pfile, undefine_macros, NULL);
+}
+
+
 /* Helper routine used by parse_include.  Reinterpret the current line
    as an h-char-sequence (< ... >); we are looking at the first token
    after the <.  Returns a malloced filename.  */