1 /* Pragma related interfaces.
2 Copyright (C) 1995, 1998, 1999 Free Software Foundation, Inc.
4 This file is part of GNU CC.
6 GNU CC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2, or (at your option)
11 GNU CC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GNU CC; see the file COPYING. If not, write to
18 the Free Software Foundation, 59 Temple Place - Suite 330,
19 Boston, MA 02111-1307, USA. */
24 #ifdef HANDLE_SYSV_PRAGMA
25 /* Support #pragma weak iff ASM_WEAKEN_LABEL and ASM_OUTPUT_DEF are
27 #if defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_DEF)
28 #define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK
31 /* We always support #pragma pack for SYSV pragmas. */
32 #ifndef HANDLE_PRAGMA_PACK
33 #define HANDLE_PRAGMA_PACK 1
35 #endif /* HANDLE_SYSV_PRAGMA */
38 #ifdef HANDLE_PRAGMA_PACK_PUSH_POP
39 /* If we are supporting #pragma pack(push... then we automatically
40 support #pragma pack(<n>) */
41 #define HANDLE_PRAGMA_PACK 1
42 #endif /* HANDLE_PRAGMA_PACK_PUSH_POP */
45 #ifdef HANDLE_PRAGMA_WEAK
46 /* This structure contains any weak symbol declarations waiting to be emitted. */
49 struct weak_syms
* next
;
54 /* Declared in varasm.c */
55 extern struct weak_syms
* weak_decls
;
57 extern int add_weak
PROTO((char *, char *));
58 #endif /* HANDLE_PRAGMA_WEAK */
61 /* Define HANDLE_GENERIC_PRAGMAS if any kind of front-end pragma
62 parsing is to be done. The code in GCC's generic C source files
63 will only look for the definition of this constant. They will
64 ignore definitions of HANDLE_PRAGMA_PACK and so on.
65 With #pragma poison, this is always set. */
66 #define HANDLE_GENERIC_PRAGMAS 1
69 #ifdef HANDLE_GENERIC_PRAGMAS
74 #ifdef HANDLE_PRAGMA_WEAK
80 #ifdef HANDLE_PRAGMA_PACK
86 #ifdef HANDLE_PRAGMA_PACK_PUSH_POP
87 ps_push
, ps_pushcomma
, ps_pushid
, ps_pushcomma2
,
94 /* Handle a C style pragma */
95 extern int handle_pragma_token
PROTO((const char *, tree
));
97 #endif /* HANDLE_GENERIC_PRAGMAS */
99 extern void init_pragma
PROTO((void));
101 #endif /* _C_PRAGMA_H */