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,
46 PRAGMA_OMP_THREADPRIVATE,
48 PRAGMA_GCC_PCH_PREPROCESS,
54 /* All clauses defined by OpenMP 2.5 and 3.0.
55 Used internally by both C and C++ parsers. */
56 typedef enum pragma_omp_clause {
57 PRAGMA_OMP_CLAUSE_NONE = 0,
59 PRAGMA_OMP_CLAUSE_COLLAPSE,
60 PRAGMA_OMP_CLAUSE_COPYIN,
61 PRAGMA_OMP_CLAUSE_COPYPRIVATE,
62 PRAGMA_OMP_CLAUSE_DEFAULT,
63 PRAGMA_OMP_CLAUSE_FIRSTPRIVATE,
65 PRAGMA_OMP_CLAUSE_LASTPRIVATE,
66 PRAGMA_OMP_CLAUSE_NOWAIT,
67 PRAGMA_OMP_CLAUSE_NUM_THREADS,
68 PRAGMA_OMP_CLAUSE_ORDERED,
69 PRAGMA_OMP_CLAUSE_PRIVATE,
70 PRAGMA_OMP_CLAUSE_REDUCTION,
71 PRAGMA_OMP_CLAUSE_SCHEDULE,
72 PRAGMA_OMP_CLAUSE_SHARED,
73 PRAGMA_OMP_CLAUSE_UNTIED
76 extern struct cpp_reader* parse_in;
78 /* It's safe to always leave visibility pragma enabled as if
79 visibility is not supported on the host OS platform the
80 statements are ignored. */
81 extern void push_visibility (const char *, int);
82 extern bool pop_visibility (int);
84 extern void init_pragma (void);
86 /* Front-end wrappers for pragma registration. */
87 typedef void (*pragma_handler_1arg)(struct cpp_reader *);
88 /* A second pragma handler, which adds a void * argument allowing to pass extra
89 data to the handler. */
90 typedef void (*pragma_handler_2arg)(struct cpp_reader *, void *);
92 /* This union allows to abstract the different handlers. */
93 union gen_pragma_handler {
94 pragma_handler_1arg handler_1arg;
95 pragma_handler_2arg handler_2arg;
97 /* Internally used to keep the data of the handler. */
98 struct internal_pragma_handler_d {
99 union gen_pragma_handler handler;
100 /* Permits to know if handler is a pragma_handler_1arg (extra_data is false)
101 or a pragma_handler_2arg (extra_data is true). */
103 /* A data field which can be used when extra_data is true. */
106 typedef struct internal_pragma_handler_d internal_pragma_handler;
108 extern void c_register_pragma (const char *space, const char *name,
109 pragma_handler_1arg handler);
110 extern void c_register_pragma_with_data (const char *space, const char *name,
111 pragma_handler_2arg handler,
114 extern void c_register_pragma_with_expansion (const char *space,
116 pragma_handler_1arg handler);
117 extern void c_register_pragma_with_expansion_and_data (const char *space,
119 pragma_handler_2arg handler,
121 extern void c_invoke_pragma_handler (unsigned int);
123 extern void maybe_apply_pragma_weak (tree);
124 extern void maybe_apply_pending_pragma_weaks (void);
125 extern tree maybe_apply_renaming_pragma (tree, tree);
126 extern void add_to_renaming_pragma_list (tree, tree);
128 extern enum cpp_ttype pragma_lex (tree *);
130 /* Flags for use with c_lex_with_flags. The values here were picked
131 so that 0 means to translate and join strings. */
132 #define C_LEX_STRING_NO_TRANSLATE 1 /* Do not lex strings into
133 execution character set. */
134 #define C_LEX_STRING_NO_JOIN 2 /* Do not concatenate strings
135 nor translate them into execution
138 /* This is not actually available to pragma parsers. It's merely a
139 convenient location to declare this function for c-lex, after
140 having enum cpp_ttype declared. */
141 extern enum cpp_ttype c_lex_with_flags (tree *, location_t *, unsigned char *,
144 extern void c_pp_lookup_pragma (unsigned int, const char **, const char **);
146 #endif /* GCC_C_PRAGMA_H */