--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/gcc-c-interface.h	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,211 @@
+/* Interface between GCC C FE and GDB
+
+   Copyright (C) 2014-2017 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   This program 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 of the License, or
+   (at your option) any later version.
+
+   This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef GCC_C_INTERFACE_H
+#define GCC_C_INTERFACE_H
+
+#include "gcc-interface.h"
+
+/* This header defines the interface to the GCC API.  It must be both
+   valid C and valid C++, because it is included by both programs.  */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Forward declaration.  */
+
+struct gcc_c_context;
+
+/*
+ * Definitions and declarations for the C front end.
+ */
+
+/* Defined versions of the C front-end API.  */
+
+enum gcc_c_api_version
+{
+  GCC_C_FE_VERSION_0 = 0,
+
+  /* Added char_type.  Added new version of int_type and float_type,
+     deprecated int_type_v0 and float_type_v0.  */
+  GCC_C_FE_VERSION_1 = 1
+};
+
+/* Qualifiers.  */
+
+enum gcc_qualifiers
+{
+  GCC_QUALIFIER_CONST = 1,
+  GCC_QUALIFIER_VOLATILE = 2,
+  GCC_QUALIFIER_RESTRICT = 4
+};
+
+/* This enumerates the kinds of decls that GDB can create.  */
+
+enum gcc_c_symbol_kind
+{
+  /* A function.  */
+
+  GCC_C_SYMBOL_FUNCTION,
+
+  /* A variable.  */
+
+  GCC_C_SYMBOL_VARIABLE,
+
+  /* A typedef.  */
+
+  GCC_C_SYMBOL_TYPEDEF,
+
+  /* A label.  */
+
+  GCC_C_SYMBOL_LABEL
+};
+
+/* This enumerates the types of symbols that GCC might request from
+   GDB.  */
+
+enum gcc_c_oracle_request
+{
+  /* An ordinary symbol -- a variable, function, typedef, or enum
+     constant.  */
+
+  GCC_C_ORACLE_SYMBOL,
+
+  /* A struct, union, or enum tag.  */
+
+  GCC_C_ORACLE_TAG,
+
+  /* A label.  */
+
+  GCC_C_ORACLE_LABEL
+};
+
+/* The type of the function called by GCC to ask GDB for a symbol's
+   definition.  DATUM is an arbitrary value supplied when the oracle
+   function is registered.  CONTEXT is the GCC context in which the
+   request is being made.  REQUEST specifies what sort of symbol is
+   being requested, and IDENTIFIER is the name of the symbol.  */
+
+typedef void gcc_c_oracle_function (void *datum,
+				    struct gcc_c_context *context,
+				    enum gcc_c_oracle_request request,
+				    const char *identifier);
+
+/* The type of the function called by GCC to ask GDB for a symbol's
+   address.  This should return 0 if the address is not known.  */
+
+typedef gcc_address gcc_c_symbol_address_function (void *datum,
+						   struct gcc_c_context *ctxt,
+						   const char *identifier);
+
+/* The vtable used by the C front end.  */
+
+struct gcc_c_fe_vtable
+{
+  /* The version of the C interface.  The value is one of the
+     gcc_c_api_version constants.  */
+
+  unsigned int c_version;
+
+  /* Set the callbacks for this context.
+
+     The binding oracle is called whenever the C parser needs to look
+     up a symbol.  This gives the caller a chance to lazily
+     instantiate symbols using other parts of the gcc_c_fe_interface
+     API.
+
+     The address oracle is called whenever the C parser needs to look
+     up a symbol.  This is only called for symbols not provided by the
+     symbol oracle -- that is, just built-in functions where GCC
+     provides the declaration.
+
+     DATUM is an arbitrary piece of data that is passed back verbatim
+     to the callbacks in requests.  */
+
+  void (*set_callbacks) (struct gcc_c_context *self,
+			 gcc_c_oracle_function *binding_oracle,
+			 gcc_c_symbol_address_function *address_oracle,
+			 void *datum);
+
+#define GCC_METHOD0(R, N) \
+  R (*N) (struct gcc_c_context *);
+#define GCC_METHOD1(R, N, A) \
+  R (*N) (struct gcc_c_context *, A);
+#define GCC_METHOD2(R, N, A, B) \
+  R (*N) (struct gcc_c_context *, A, B);
+#define GCC_METHOD3(R, N, A, B, C) \
+  R (*N) (struct gcc_c_context *, A, B, C);
+#define GCC_METHOD4(R, N, A, B, C, D) \
+  R (*N) (struct gcc_c_context *, A, B, C, D);
+#define GCC_METHOD5(R, N, A, B, C, D, E) \
+  R (*N) (struct gcc_c_context *, A, B, C, D, E);
+#define GCC_METHOD7(R, N, A, B, C, D, E, F, G) \
+  R (*N) (struct gcc_c_context *, A, B, C, D, E, F, G);
+
+#include "gcc-c-fe.def"
+
+#undef GCC_METHOD0
+#undef GCC_METHOD1
+#undef GCC_METHOD2
+#undef GCC_METHOD3
+#undef GCC_METHOD4
+#undef GCC_METHOD5
+#undef GCC_METHOD7
+
+};
+
+/* The C front end object.  */
+
+struct gcc_c_context
+{
+  /* Base class.  */
+
+  struct gcc_base_context base;
+
+  /* Our vtable.  This is a separate field because this is simpler
+     than implementing a vtable inheritance scheme in C.  */
+
+  const struct gcc_c_fe_vtable *c_ops;
+};
+
+/* The name of the .so that the compiler builds.  We dlopen this
+   later.  */
+
+#define GCC_C_FE_LIBCC libcc1.so
+
+/* The compiler exports a single initialization function.  This macro
+   holds its name as a symbol.  */
+
+#define GCC_C_FE_CONTEXT gcc_c_fe_context
+
+/* The type of the initialization function.  The caller passes in the
+   desired base version and desired C-specific version.  If the
+   request can be satisfied, a compatible gcc_context object will be
+   returned.  Otherwise, the function returns NULL.  */
+
+typedef struct gcc_c_context *gcc_c_fe_context_function
+    (enum gcc_base_api_version,
+     enum gcc_c_api_version);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* GCC_C_INTERFACE_H */