--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/varasm.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,82 @@
+/* Declarations for varasm.h.
+   Copyright (C) 2013-2017 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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 3, or (at your option) any later
+version.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_VARASM_H
+#define GCC_VARASM_H
+
+/* The following global holds the "function name" for the code in the
+   cold section of a function, if hot/cold function splitting is enabled
+   and there was actually code that went into the cold section.  A
+   pseudo function name is needed for the cold section of code for some
+   debugging tools that perform symbolization. */
+extern tree cold_function_name;
+
+extern tree tree_output_constant_def (tree);
+extern void make_decl_rtl (tree);
+extern rtx make_decl_rtl_for_debug (tree);
+extern void make_decl_one_only (tree, tree);
+extern int supports_one_only (void);
+extern void resolve_unique_section (tree, int, int);
+extern void mark_referenced (tree);
+extern void mark_decl_referenced (tree);
+extern void notice_global_symbol (tree);
+extern void set_user_assembler_name (tree, const char *);
+extern void process_pending_assemble_externals (void);
+extern bool decl_replaceable_p (tree);
+extern bool decl_binds_to_current_def_p (const_tree);
+extern enum tls_model decl_default_tls_model (const_tree);
+
+/* Declare DECL to be a weak symbol.  */
+extern void declare_weak (tree);
+
+/* Merge weak status.  */
+extern void merge_weak (tree, tree);
+
+/* Make one symbol an alias for another.  */
+extern void assemble_alias (tree, tree);
+
+/* Return nonzero if VALUE is a valid constant-valued expression
+   for use in initializing a static variable; one that can be an
+   element of a "constant" initializer.
+
+   Return null_pointer_node if the value is absolute;
+   if it is relocatable, return the variable that determines the relocation.
+   We assume that VALUE has been folded as much as possible;
+   therefore, we do not need to check for such things as
+   arithmetic-combinations of integers.  */
+extern tree initializer_constant_valid_p (tree, tree, bool = false);
+
+/* Return true if VALUE is a valid constant-valued expression
+   for use in initializing a static bit-field; one that can be
+   an element of a "constant" initializer.  */
+extern bool initializer_constant_valid_for_bitfield_p (tree);
+
+/* Whether a constructor CTOR is a valid static constant initializer if all
+   its elements are.  This used to be internal to initializer_constant_valid_p
+   and has been exposed to let other functions like categorize_ctor_elements
+   evaluate the property while walking a constructor for other purposes.  */
+extern bool constructor_static_from_elts_p (const_tree);
+
+extern void init_varasm_status (void);
+
+extern rtx assemble_static_space (unsigned HOST_WIDE_INT);
+
+extern rtx assemble_trampoline_template (void);
+
+#endif  // GCC_VARASM_H