Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the

non-i386, non-unix, and generatable files have been trimmed, but can easily
be added in later if needed.

gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's
handy to have both available for reference for such little cost.

The freebsd-specific changes will then be committed, and once the dust has
settled, the bmakefiles will be committed to use this code.

1 files changed, 180 insertions, 0 deletions

diff --git a/contrib/gcc/c-lang.c b/contrib/gcc/c-lang.c
new file mode 100644
index 0000000..ef9f184
--- /dev/null
+++ b/contrib/gcc/c-lang.c
@@ -0,0 +1,180 @@
+/* Language-specific hook definitions for C front end.
+   Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+
+This file is part of GNU CC.
+
+GNU CC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+
+#include "config.h"
+#include "tree.h"
+#include <stdio.h>
+#include "input.h"
+
+/* Each of the functions defined here
+   is an alternative to a function in objc-actions.c.  */
+   
+int
+lang_decode_option (p)
+     char *p;
+{
+  return c_decode_option (p);
+}
+
+void
+lang_init ()
+{
+  /* the beginning of the file is a new line; check for # */
+  /* With luck, we discover the real source file's name from that
+     and put it in input_filename.  */
+  ungetc (check_newline (), finput);
+}
+
+void
+lang_finish ()
+{
+}
+
+char *
+lang_identify ()
+{
+  return "c";
+}
+
+void
+print_lang_statistics ()
+{
+}
+
+/* Used by c-lex.c, but only for objc.  */
+
+tree
+lookup_interface (arg)
+     tree arg;
+{
+  return 0;
+}
+
+tree
+is_class_name (arg)
+    tree arg;
+{
+  return 0;
+}
+
+void
+maybe_objc_check_decl (decl)
+     tree decl;
+{
+}
+
+int
+maybe_objc_comptypes (lhs, rhs, reflexive)
+     tree lhs, rhs;
+     int reflexive;
+{
+  return -1;
+}
+
+tree
+maybe_objc_method_name (decl)
+    tree decl;
+{
+  return 0;
+}
+
+tree
+maybe_building_objc_message_expr ()
+{
+  return 0;
+}
+
+int
+recognize_objc_keyword ()
+{
+  return 0;
+}
+
+tree
+build_objc_string (len, str)
+    int len;
+    char *str;
+{
+  abort ();
+  return NULL_TREE;
+}
+
+void
+GNU_xref_begin ()
+{
+  fatal ("GCC does not yet support XREF");
+}
+
+void
+GNU_xref_end ()
+{
+  fatal ("GCC does not yet support XREF");
+}
+
+/* called at end of parsing, but before end-of-file processing.  */
+void
+finish_file ()
+{
+  extern tree static_ctors, static_dtors;
+  extern tree get_file_function_name ();
+  extern tree build_function_call                 PROTO((tree, tree));
+  tree void_list_node = build_tree_list (NULL_TREE, void_type_node);
+#ifndef ASM_OUTPUT_CONSTRUCTOR
+  if (static_ctors)
+    {
+      tree fnname = get_file_function_name ('I');
+      start_function (void_list_node,
+		      build_parse_node (CALL_EXPR, fnname, void_list_node,
+					NULL_TREE),
+		      NULL_TREE, NULL_TREE, 0);
+      fnname = DECL_ASSEMBLER_NAME (current_function_decl);
+      store_parm_decls ();
+
+      for (; static_ctors; static_ctors = TREE_CHAIN (static_ctors))
+	expand_expr_stmt (build_function_call (TREE_VALUE (static_ctors),
+					       NULL_TREE));
+
+      finish_function (0);
+
+      assemble_constructor (IDENTIFIER_POINTER (fnname));
+    }
+#endif
+#ifndef ASM_OUTPUT_DESTRUCTOR
+  if (static_dtors)
+    {
+      tree fnname = get_file_function_name ('D');
+      start_function (void_list_node,
+		      build_parse_node (CALL_EXPR, fnname, void_list_node,
+					NULL_TREE),
+		      NULL_TREE, NULL_TREE, 0);
+      fnname = DECL_ASSEMBLER_NAME (current_function_decl);
+      store_parm_decls ();
+
+      for (; static_dtors; static_dtors = TREE_CHAIN (static_dtors))
+	expand_expr_stmt (build_function_call (TREE_VALUE (static_dtors),
+					       NULL_TREE));
+
+      finish_function (0);
+
+      assemble_destructor (IDENTIFIER_POINTER (fnname));
+    }
+#endif
+}