--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/go/go-c.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,78 @@
+/* go-c.h -- Header file for go frontend gcc C interface.
+   Copyright (C) 2009-2017 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 GO_GO_C_H
+#define GO_GO_C_H
+
+#define GO_EXTERN_C
+
+class Linemap;
+class Backend;
+
+/* Functions defined in the Go frontend proper called by the GCC
+   interface.  */
+
+extern int go_enable_dump (const char*);
+extern int go_enable_optimize (const char*);
+
+extern void go_add_search_path (const char*);
+
+struct go_create_gogo_args
+{
+  int int_type_size;
+  int pointer_size;
+  const char* pkgpath;
+  const char* prefix;
+  const char* relative_import_path;
+  const char* c_header;
+  Backend* backend;
+  Linemap* linemap;
+  bool check_divide_by_zero;
+  bool check_divide_overflow;
+  bool compiling_runtime;
+  int debug_escape_level;
+};
+
+extern void go_create_gogo (const struct go_create_gogo_args*);
+
+extern void go_parse_input_files (const char**, unsigned int,
+				  bool only_check_syntax,
+				  bool require_return_statement);
+extern void go_write_globals (void);
+
+/* Functions defined in the GCC interface called by the Go frontend
+   proper.  */
+
+extern void go_preserve_from_gc (tree);
+
+extern bool saw_errors (void);
+
+extern const char *go_localize_identifier (const char*);
+
+extern unsigned int go_field_alignment (tree);
+
+extern void go_imported_unsafe (void);
+
+extern void go_write_export_data (const char *, unsigned int);
+
+extern const char *go_read_export_data (int, off_t, char **, size_t *, int *);
+
+extern GTY(()) tree go_non_zero_struct;
+
+#endif /* !defined(GO_GO_C_H) */