1/* GCC core type declarations. 2 Copyright (C) 2002, 2004 Free Software Foundation, Inc. 3 4This file is part of GCC. 5 6GCC is free software; you can redistribute it and/or modify it under 7the terms of the GNU General Public License as published by the Free 8Software Foundation; either version 2, or (at your option) any later 9version. 10 11GCC is distributed in the hope that it will be useful, but WITHOUT ANY 12WARRANTY; without even the implied warranty of MERCHANTABILITY or 13FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14for more details. 15 16You should have received a copy of the GNU General Public License 17along with GCC; see the file COPYING. If not, write to the Free 18Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 1902110-1301, USA. */ 20 21/* Provide forward declarations of core types which are referred to by 22 most of the compiler. This allows header files to use these types 23 (e.g. in function prototypes) without concern for whether the full 24 definitions are visible. Some other declarations that need to be 25 universally visible are here, too. 26 27 In the context of tconfig.h, most of these have special definitions 28 which prevent them from being used except in further type 29 declarations. This is a kludge; the right thing is to avoid 30 including the "tm.h" header set in the context of tconfig.h, but 31 we're not there yet. */ 32 33#ifndef GCC_CORETYPES_H 34#define GCC_CORETYPES_H 35 36#define GTY(x) /* nothing - marker for gengtype */ 37 38#ifndef USED_FOR_TARGET 39 40struct rtx_def; 41typedef struct rtx_def *rtx; 42struct rtvec_def; 43typedef struct rtvec_def *rtvec; 44union tree_node; 45typedef union tree_node *tree; 46 47/* Provide forward struct declaration so that we don't have to include 48 all of cpplib.h whenever a random prototype includes a pointer. 49 Note that the cpp_reader typedef remains part of cpplib.h. */ 50 51struct cpp_reader; 52 53/* The thread-local storage model associated with a given VAR_DECL 54 or SYMBOL_REF. This isn't used much, but both trees and RTL refer 55 to it, so it's here. */ 56enum tls_model { 57 TLS_MODEL_NONE, 58 TLS_MODEL_GLOBAL_DYNAMIC, 59 TLS_MODEL_LOCAL_DYNAMIC, 60 TLS_MODEL_INITIAL_EXEC, 61 TLS_MODEL_LOCAL_EXEC 62}; 63 64#else 65 66struct _dont_use_rtx_here_; 67struct _dont_use_rtvec_here_; 68union _dont_use_tree_here_; 69#define rtx struct _dont_use_rtx_here_ * 70#define rtvec struct _dont_use_rtvec_here * 71#define tree union _dont_use_tree_here_ * 72 73#endif 74 75#endif /* coretypes.h */ 76 77