gcc/c-pragma.h

   1 /* Pragma related interfaces.
   2    Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004
   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, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, 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 /* Cause the `yydebug' variable to be defined.  */
  28 #define YYDEBUG 1
  29 extern int yydebug;
  30
  31 extern struct cpp_reader* parse_in;
  32
  33 #define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK
  34
  35 #ifdef HANDLE_SYSV_PRAGMA
  36 /* We always support #pragma pack for SYSV pragmas.  */
  37 #ifndef HANDLE_PRAGMA_PACK
  38 #define HANDLE_PRAGMA_PACK 1
  39 #endif
  40 #endif /* HANDLE_SYSV_PRAGMA */
  41
  42
  43 #ifdef HANDLE_PRAGMA_PACK_PUSH_POP
  44 /* If we are supporting #pragma pack(push... then we automatically
  45    support #pragma pack(<n>)  */
  46 #define HANDLE_PRAGMA_PACK 1
  47 #endif /* HANDLE_PRAGMA_PACK_PUSH_POP */
  48
  49 /* It's safe to always leave visibility pragma enabled as if
  50    visibility is not supported on the host OS platform the
  51    statements are ignored.  */
  52 #define HANDLE_PRAGMA_VISIBILITY 1
  53
  54 extern void init_pragma (void);
  55
  56 /* Front-end wrappers for pragma registration to avoid dragging
  57    cpplib.h in almost everywhere.  */
  58 extern void c_register_pragma (const char *, const char *,
  59                                void (*) (struct cpp_reader *));
  60 extern void c_register_pragma_with_expansion (const char *, const char *,
  61                                               void (*) (struct cpp_reader *));
  62 extern void maybe_apply_pragma_weak (tree);
  63 extern void maybe_apply_pending_pragma_weaks (void);
  64 extern tree maybe_apply_renaming_pragma (tree, tree);
  65 extern void add_to_renaming_pragma_list (tree, tree);
  66
  67 extern enum cpp_ttype c_lex (tree *);
  68 extern enum cpp_ttype c_lex_with_flags (tree *, unsigned char *);
  69
  70 /* If 1, then lex strings into the execution character set.
  71    If 0, lex strings into the host character set.
  72    If -1, lex both, and chain them together, such that the former
  73    is the TREE_CHAIN of the latter.  */
  74 extern int c_lex_string_translate;
  75
  76 /* If true, strings should be passed to the caller of c_lex completely
  77    unmolested (no concatenation, no translation).  */
  78 extern bool c_lex_return_raw_strings;
  79
  80 #endif /* GCC_C_PRAGMA_H */