gcc/c-pragma.h

   1 /* Pragma related interfaces.
   2    Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  20 02110-1301, 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.  */
  29 typedef 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
  53 /* All clauses defined by OpenMP 2.5.
  54    Used internally by both C and C++ parsers.  */
  55 typedef enum pragma_omp_clause {
  56   PRAGMA_OMP_CLAUSE_NONE = 0,
  57
  58   PRAGMA_OMP_CLAUSE_COPYIN,
  59   PRAGMA_OMP_CLAUSE_COPYPRIVATE,
  60   PRAGMA_OMP_CLAUSE_DEFAULT,
  61   PRAGMA_OMP_CLAUSE_FIRSTPRIVATE,
  62   PRAGMA_OMP_CLAUSE_IF,
  63   PRAGMA_OMP_CLAUSE_LASTPRIVATE,
  64   PRAGMA_OMP_CLAUSE_NOWAIT,
  65   PRAGMA_OMP_CLAUSE_NUM_THREADS,
  66   PRAGMA_OMP_CLAUSE_ORDERED,
  67   PRAGMA_OMP_CLAUSE_PRIVATE,
  68   PRAGMA_OMP_CLAUSE_REDUCTION,
  69   PRAGMA_OMP_CLAUSE_SCHEDULE,
  70   PRAGMA_OMP_CLAUSE_SHARED
  71 } pragma_omp_clause;
  72
  73 extern struct cpp_reader* parse_in;
  74
  75 #define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK
  76
  77 #ifdef HANDLE_SYSV_PRAGMA
  78 /* We always support #pragma pack for SYSV pragmas.  */
  79 #ifndef HANDLE_PRAGMA_PACK
  80 #define HANDLE_PRAGMA_PACK 1
  81 #endif
  82 #endif /* HANDLE_SYSV_PRAGMA */
  83
  84
  85 #ifdef HANDLE_PRAGMA_PACK_PUSH_POP
  86 /* If we are supporting #pragma pack(push... then we automatically
  87    support #pragma pack(<n>)  */
  88 #define HANDLE_PRAGMA_PACK 1
  89 #endif /* HANDLE_PRAGMA_PACK_PUSH_POP */
  90
  91 /* It's safe to always leave visibility pragma enabled as if
  92    visibility is not supported on the host OS platform the
  93    statements are ignored.  */
  94 #define HANDLE_PRAGMA_VISIBILITY 1
  95 extern void push_visibility (const char *);
  96 extern void pop_visibility (void);
  97
  98 extern void init_pragma (void);
  99
 100 /* Front-end wrappers for pragma registration.  */
 101 typedef void (*pragma_handler)(struct cpp_reader *);
 102 extern void c_register_pragma (const char *, const char *, pragma_handler);
 103 extern void c_register_pragma_with_expansion (const char *, const char *,
 104                                               pragma_handler);
 105 extern void c_invoke_pragma_handler (unsigned int);
 106
 107 extern void maybe_apply_pragma_weak (tree);
 108 extern void maybe_apply_pending_pragma_weaks (void);
 109 extern tree maybe_apply_renaming_pragma (tree, tree);
 110 extern void add_to_renaming_pragma_list (tree, tree);
 111
 112 extern enum cpp_ttype pragma_lex (tree *);
 113
 114 /* This is not actually available to pragma parsers.  It's merely a
 115    convenient location to declare this function for c-lex, after
 116    having enum cpp_ttype declared.  */
 117 extern enum cpp_ttype c_lex_with_flags (tree *, location_t *, unsigned char *);
 118
 119 /* If 1, then lex strings into the execution character set.
 120    If 0, lex strings into the host character set.
 121    If -1, lex both, and chain them together, such that the former
 122    is the TREE_CHAIN of the latter.  */
 123 extern int c_lex_string_translate;
 124
 125 /* If true, strings should be passed to the caller of c_lex completely
 126    unmolested (no concatenation, no translation).  */
 127 extern bool c_lex_return_raw_strings;
 128
 129 #endif /* GCC_C_PRAGMA_H */