1/* Pragma related interfaces. 2 Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 3 2007, 2008 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 3, 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 COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21#ifndef GCC_C_PRAGMA_H 22#define GCC_C_PRAGMA_H 23 24#include <cpplib.h> /* For enum cpp_ttype. */ 25 26/* Pragma identifiers built in to the front end parsers. Identifiers 27 for ancillary handlers will follow these. */ 28typedef enum pragma_kind { 29 PRAGMA_NONE = 0, 30 31 PRAGMA_OMP_ATOMIC, 32 PRAGMA_OMP_BARRIER, 33 PRAGMA_OMP_CRITICAL, 34 PRAGMA_OMP_FLUSH, 35 PRAGMA_OMP_FOR, 36 PRAGMA_OMP_MASTER, 37 PRAGMA_OMP_ORDERED, 38 PRAGMA_OMP_PARALLEL, 39 PRAGMA_OMP_PARALLEL_FOR, 40 PRAGMA_OMP_PARALLEL_SECTIONS, 41 PRAGMA_OMP_SECTION, 42 PRAGMA_OMP_SECTIONS, 43 PRAGMA_OMP_SINGLE, 44 PRAGMA_OMP_TASK, 45 PRAGMA_OMP_TASKWAIT, 46 PRAGMA_OMP_THREADPRIVATE, 47 48 PRAGMA_GCC_PCH_PREPROCESS, 49 50 PRAGMA_FIRST_EXTERNAL 51} pragma_kind; 52 53 54/* All clauses defined by OpenMP 2.5 and 3.0. 55 Used internally by both C and C++ parsers. */ 56typedef enum pragma_omp_clause { 57 PRAGMA_OMP_CLAUSE_NONE = 0, 58 59 PRAGMA_OMP_CLAUSE_COLLAPSE, 60 PRAGMA_OMP_CLAUSE_COPYIN, 61 PRAGMA_OMP_CLAUSE_COPYPRIVATE, 62 PRAGMA_OMP_CLAUSE_DEFAULT, 63 PRAGMA_OMP_CLAUSE_FIRSTPRIVATE, 64 PRAGMA_OMP_CLAUSE_IF, 65 PRAGMA_OMP_CLAUSE_LASTPRIVATE, 66 PRAGMA_OMP_CLAUSE_NOWAIT, 67 PRAGMA_OMP_CLAUSE_NUM_THREADS, 68 PRAGMA_OMP_CLAUSE_ORDERED, 69 PRAGMA_OMP_CLAUSE_PRIVATE, 70 PRAGMA_OMP_CLAUSE_REDUCTION, 71 PRAGMA_OMP_CLAUSE_SCHEDULE, 72 PRAGMA_OMP_CLAUSE_SHARED, 73 PRAGMA_OMP_CLAUSE_UNTIED 74} pragma_omp_clause; 75 76extern struct cpp_reader* parse_in; 77 78#define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK 79 80#ifdef HANDLE_SYSV_PRAGMA 81/* We always support #pragma pack for SYSV pragmas. */ 82#ifndef HANDLE_PRAGMA_PACK 83#define HANDLE_PRAGMA_PACK 1 84#endif 85#endif /* HANDLE_SYSV_PRAGMA */ 86 87 88#ifdef HANDLE_PRAGMA_PACK_PUSH_POP 89/* If we are supporting #pragma pack(push... then we automatically 90 support #pragma pack(<n>) */ 91#define HANDLE_PRAGMA_PACK 1 92#endif /* HANDLE_PRAGMA_PACK_PUSH_POP */ 93 94/* It's safe to always leave visibility pragma enabled as if 95 visibility is not supported on the host OS platform the 96 statements are ignored. */ 97#define HANDLE_PRAGMA_VISIBILITY 1 98extern void push_visibility (const char *, int); 99extern bool pop_visibility (int); 100 101extern void init_pragma (void); 102 103/* Front-end wrappers for pragma registration. */ 104typedef void (*pragma_handler)(struct cpp_reader *); 105extern void c_register_pragma (const char *, const char *, pragma_handler); 106extern void c_register_pragma_with_expansion (const char *, const char *, 107 pragma_handler); 108extern void c_invoke_pragma_handler (unsigned int); 109 110extern void maybe_apply_pragma_weak (tree); 111extern void maybe_apply_pending_pragma_weaks (void); 112extern tree maybe_apply_renaming_pragma (tree, tree); 113extern void add_to_renaming_pragma_list (tree, tree); 114 115extern enum cpp_ttype pragma_lex (tree *); 116 117/* Flags for use with c_lex_with_flags. The values here were picked 118 so that 0 means to translate and join strings. */ 119#define C_LEX_STRING_NO_TRANSLATE 1 /* Do not lex strings into 120 execution character set. */ 121#define C_LEX_STRING_NO_JOIN 2 /* Do not concatenate strings 122 nor translate them into execution 123 character set. */ 124 125/* This is not actually available to pragma parsers. It's merely a 126 convenient location to declare this function for c-lex, after 127 having enum cpp_ttype declared. */ 128extern enum cpp_ttype c_lex_with_flags (tree *, location_t *, unsigned char *, 129 int); 130 131extern void c_pp_lookup_pragma (unsigned int, const char **, const char **); 132 133#endif /* GCC_C_PRAGMA_H */ 134