1 /* Pragma related interfaces.
2 Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2007 Free Software Foundation, Inc.
5 This file is part of GCC.
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 3, or (at your option) any later
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
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
21 #ifndef GCC_C_PRAGMA_H
22 #define GCC_C_PRAGMA_H
24 #include <cpplib.h> /* For enum cpp_ttype. */
26 /* Pragma identifiers built in to the front end parsers. Identifiers
27 for ancillary handlers will follow these. */
28 typedef enum pragma_kind
{
39 PRAGMA_OMP_PARALLEL_FOR
,
40 PRAGMA_OMP_PARALLEL_SECTIONS
,
44 PRAGMA_OMP_THREADPRIVATE
,
46 PRAGMA_GCC_PCH_PREPROCESS
,
51 /* Cause the `yydebug' variable to be defined. */
55 extern struct cpp_reader
* parse_in
;
57 #define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK
59 #ifdef HANDLE_SYSV_PRAGMA
60 /* We always support #pragma pack for SYSV pragmas. */
61 #ifndef HANDLE_PRAGMA_PACK
62 #define HANDLE_PRAGMA_PACK 1
64 #endif /* HANDLE_SYSV_PRAGMA */
67 #ifdef HANDLE_PRAGMA_PACK_PUSH_POP
68 /* If we are supporting #pragma pack(push... then we automatically
69 support #pragma pack(<n>) */
70 #define HANDLE_PRAGMA_PACK 1
71 #endif /* HANDLE_PRAGMA_PACK_PUSH_POP */
73 /* It's safe to always leave visibility pragma enabled as if
74 visibility is not supported on the host OS platform the
75 statements are ignored. */
76 #define HANDLE_PRAGMA_VISIBILITY 1
77 extern void push_visibility (const char *);
78 extern void pop_visibility (void);
80 extern void init_pragma (void);
82 /* Front-end wrappers for pragma registration. */
83 typedef void (*pragma_handler
)(struct cpp_reader
*);
84 extern void c_register_pragma (const char *, const char *, pragma_handler
);
85 extern void c_register_pragma_with_expansion (const char *, const char *,
87 extern void c_invoke_pragma_handler (unsigned int);
89 extern void maybe_apply_pragma_weak (tree
);
90 extern void maybe_apply_pending_pragma_weaks (void);
91 extern tree
maybe_apply_renaming_pragma (tree
, tree
);
92 extern void add_to_renaming_pragma_list (tree
, tree
);
94 extern enum cpp_ttype
pragma_lex (tree
*);
96 /* This is not actually available to pragma parsers. It's merely a
97 convenient location to declare this function for c-lex, after
98 having enum cpp_ttype declared. */
99 extern enum cpp_ttype
c_lex_with_flags (tree
*, location_t
*, unsigned char *);
101 /* If 1, then lex strings into the execution character set.
102 If 0, lex strings into the host character set.
103 If -1, lex both, and chain them together, such that the former
104 is the TREE_CHAIN of the latter. */
105 extern int c_lex_string_translate
;
107 /* If true, strings should be passed to the caller of c_lex completely
108 unmolested (no concatenation, no translation). */
109 extern bool c_lex_return_raw_strings
;
111 #endif /* GCC_C_PRAGMA_H */