1/* Pragma related interfaces. 2 Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 3 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify it under 8the terms of the GNU General Public License as published by the Free 9Software Foundation; either version 2, or (at your option) any later 10version. 11 12GCC is distributed in the hope that it will be useful, but WITHOUT ANY 13WARRANTY; without even the implied warranty of MERCHANTABILITY or 14FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 15for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING. If not, write to the Free 19Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 2002110-1301, USA. */ 21 22#ifndef GCC_C_PRAGMA_H 23#define GCC_C_PRAGMA_H 24 25#include <cpplib.h> /* For enum cpp_ttype. */ 26 27/* Pragma identifiers built in to the front end parsers. Identifiers 28 for ancillary handlers will follow these. */ 29typedef enum pragma_kind { 30 PRAGMA_NONE = 0, 31 32 PRAGMA_OMP_ATOMIC, 33 PRAGMA_OMP_BARRIER, 34 PRAGMA_OMP_CRITICAL, 35 PRAGMA_OMP_FLUSH, 36 PRAGMA_OMP_FOR, 37 PRAGMA_OMP_MASTER, 38 PRAGMA_OMP_ORDERED, 39 PRAGMA_OMP_PARALLEL, 40 PRAGMA_OMP_PARALLEL_FOR, 41 PRAGMA_OMP_PARALLEL_SECTIONS, 42 PRAGMA_OMP_SECTION, 43 PRAGMA_OMP_SECTIONS, 44 PRAGMA_OMP_SINGLE, 45 PRAGMA_OMP_THREADPRIVATE, 46 47 PRAGMA_GCC_PCH_PREPROCESS, 48 49 PRAGMA_FIRST_EXTERNAL 50} pragma_kind; 51 52/* Cause the `yydebug' variable to be defined. */ 53#define YYDEBUG 1 54extern int yydebug; 55 56extern struct cpp_reader* parse_in; 57 58#define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK 59 60#ifdef HANDLE_SYSV_PRAGMA 61/* We always support #pragma pack for SYSV pragmas. */ 62#ifndef HANDLE_PRAGMA_PACK 63#define HANDLE_PRAGMA_PACK 1 64#endif 65#endif /* HANDLE_SYSV_PRAGMA */ 66 67 68#ifdef HANDLE_PRAGMA_PACK_PUSH_POP 69/* If we are supporting #pragma pack(push... then we automatically 70 support #pragma pack(<n>) */ 71#define HANDLE_PRAGMA_PACK 1 72#endif /* HANDLE_PRAGMA_PACK_PUSH_POP */ 73 74/* It's safe to always leave visibility pragma enabled as if 75 visibility is not supported on the host OS platform the 76 statements are ignored. */ 77#define HANDLE_PRAGMA_VISIBILITY 1 78extern void push_visibility (const char *); 79extern void pop_visibility (void); 80 81extern void init_pragma (void); 82 83/* Front-end wrappers for pragma registration. */ 84typedef void (*pragma_handler)(struct cpp_reader *); 85extern void c_register_pragma (const char *, const char *, pragma_handler); 86extern void c_register_pragma_with_expansion (const char *, const char *, 87 pragma_handler); 88extern void c_invoke_pragma_handler (unsigned int); 89 90extern void maybe_apply_pragma_weak (tree); 91extern void maybe_apply_pending_pragma_weaks (void); 92extern tree maybe_apply_renaming_pragma (tree, tree); 93extern void add_to_renaming_pragma_list (tree, tree); 94 95extern enum cpp_ttype pragma_lex (tree *); 96 97/* This is not actually available to pragma parsers. It's merely a 98 convenient location to declare this function for c-lex, after 99 having enum cpp_ttype declared. */ 100extern enum cpp_ttype c_lex_with_flags (tree *, location_t *, unsigned char *); 101 102/* If 1, then lex strings into the execution character set. 103 If 0, lex strings into the host character set. 104 If -1, lex both, and chain them together, such that the former 105 is the TREE_CHAIN of the latter. */ 106extern int c_lex_string_translate; 107 108/* If true, strings should be passed to the caller of c_lex completely 109 unmolested (no concatenation, no translation). */ 110extern bool c_lex_return_raw_strings; 111 112#endif /* GCC_C_PRAGMA_H */ 113