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 /* Cause the `yydebug' variable to be defined.  */
  53 #define YYDEBUG 1
  54 extern int yydebug;
  55
  56 extern 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
  78 extern void push_visibility (const char *);
  79 extern void pop_visibility (void);
  80
  81 extern void init_pragma (void);
  82
  83 /* Front-end wrappers for pragma registration.  */
  84 typedef void (*pragma_handler)(struct cpp_reader *);
  85 extern void c_register_pragma (const char *, const char *, pragma_handler);
  86 extern void c_register_pragma_with_expansion (const char *, const char *,
  87                                               pragma_handler);
  88 extern void c_invoke_pragma_handler (unsigned int);
  89
  90 extern void maybe_apply_pragma_weak (tree);
  91 extern void maybe_apply_pending_pragma_weaks (void);
  92 extern tree maybe_apply_renaming_pragma (tree, tree);
  93 extern void add_to_renaming_pragma_list (tree, tree);
  94
  95 extern 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.  */
 100 extern 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.  */
 106 extern 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).  */
 110 extern bool c_lex_return_raw_strings;
 111
 112 #endif /* GCC_C_PRAGMA_H */