1 /* Pragma related interfaces.
2 Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
3 2007, 2008, 2009, 2010 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
,
47 PRAGMA_OMP_THREADPRIVATE
,
49 PRAGMA_GCC_PCH_PREPROCESS
,
55 /* All clauses defined by OpenMP 2.5 and 3.0.
56 Used internally by both C and C++ parsers. */
57 typedef enum pragma_omp_clause
{
58 PRAGMA_OMP_CLAUSE_NONE
= 0,
60 PRAGMA_OMP_CLAUSE_COLLAPSE
,
61 PRAGMA_OMP_CLAUSE_COPYIN
,
62 PRAGMA_OMP_CLAUSE_COPYPRIVATE
,
63 PRAGMA_OMP_CLAUSE_DEFAULT
,
64 PRAGMA_OMP_CLAUSE_FIRSTPRIVATE
,
66 PRAGMA_OMP_CLAUSE_LASTPRIVATE
,
67 PRAGMA_OMP_CLAUSE_NOWAIT
,
68 PRAGMA_OMP_CLAUSE_NUM_THREADS
,
69 PRAGMA_OMP_CLAUSE_ORDERED
,
70 PRAGMA_OMP_CLAUSE_PRIVATE
,
71 PRAGMA_OMP_CLAUSE_REDUCTION
,
72 PRAGMA_OMP_CLAUSE_SCHEDULE
,
73 PRAGMA_OMP_CLAUSE_SHARED
,
74 PRAGMA_OMP_CLAUSE_UNTIED
,
75 PRAGMA_OMP_CLAUSE_FINAL
,
76 PRAGMA_OMP_CLAUSE_MERGEABLE
79 extern struct cpp_reader
* parse_in
;
81 /* It's safe to always leave visibility pragma enabled as if
82 visibility is not supported on the host OS platform the
83 statements are ignored. */
84 extern void push_visibility (const char *, int);
85 extern bool pop_visibility (int);
87 extern void init_pragma (void);
89 /* Front-end wrappers for pragma registration. */
90 typedef void (*pragma_handler_1arg
)(struct cpp_reader
*);
91 /* A second pragma handler, which adds a void * argument allowing to pass extra
92 data to the handler. */
93 typedef void (*pragma_handler_2arg
)(struct cpp_reader
*, void *);
95 /* This union allows to abstract the different handlers. */
96 union gen_pragma_handler
{
97 pragma_handler_1arg handler_1arg
;
98 pragma_handler_2arg handler_2arg
;
100 /* Internally used to keep the data of the handler. */
101 struct internal_pragma_handler_d
{
102 union gen_pragma_handler handler
;
103 /* Permits to know if handler is a pragma_handler_1arg (extra_data is false)
104 or a pragma_handler_2arg (extra_data is true). */
106 /* A data field which can be used when extra_data is true. */
109 typedef struct internal_pragma_handler_d internal_pragma_handler
;
111 extern void c_register_pragma (const char *space
, const char *name
,
112 pragma_handler_1arg handler
);
113 extern void c_register_pragma_with_data (const char *space
, const char *name
,
114 pragma_handler_2arg handler
,
117 extern void c_register_pragma_with_expansion (const char *space
,
119 pragma_handler_1arg handler
);
120 extern void c_register_pragma_with_expansion_and_data (const char *space
,
122 pragma_handler_2arg handler
,
124 extern void c_invoke_pragma_handler (unsigned int);
126 extern void maybe_apply_pragma_weak (tree
);
127 extern void maybe_apply_pending_pragma_weaks (void);
128 extern tree
maybe_apply_renaming_pragma (tree
, tree
);
129 extern void add_to_renaming_pragma_list (tree
, tree
);
131 extern enum cpp_ttype
pragma_lex (tree
*);
133 /* Flags for use with c_lex_with_flags. The values here were picked
134 so that 0 means to translate and join strings. */
135 #define C_LEX_STRING_NO_TRANSLATE 1 /* Do not lex strings into
136 execution character set. */
137 #define C_LEX_STRING_NO_JOIN 2 /* Do not concatenate strings
138 nor translate them into execution
141 /* This is not actually available to pragma parsers. It's merely a
142 convenient location to declare this function for c-lex, after
143 having enum cpp_ttype declared. */
144 extern enum cpp_ttype
c_lex_with_flags (tree
*, location_t
*, unsigned char *,
147 extern void c_pp_lookup_pragma (unsigned int, const char **, const char **);
149 extern GTY(()) tree pragma_extern_prefix
;
151 #endif /* GCC_C_PRAGMA_H */