| /* Pragma related interfaces. |
| Copyright (C) 1995, 1998 Free Software Foundation, Inc. |
| |
| This file is part of GNU CC. |
| |
| GNU CC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU CC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU CC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #ifndef _C_PRAGMA_H |
| #define _C_PRAGMA_H |
| |
| #ifdef HANDLE_SYSV_PRAGMA |
| /* Support #pragma weak iff ASM_WEAKEN_LABEL and ASM_OUTPUT_DEF are |
| defined. */ |
| #if defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_DEF) |
| #define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK |
| #endif |
| |
| /* We always support #pragma pack for SYSV pragmas. */ |
| #ifndef HANDLE_PRAGMA_PACK |
| #define HANDLE_PRAGMA_PACK 1 |
| #endif |
| #endif /* HANDLE_SYSV_PRAGMA */ |
| |
| |
| #ifdef HANDLE_PRAGMA_PACK_PUSH_POP |
| /* If we are supporting #pragma pack(push... then we automatically |
| support #pragma pack(<n>) */ |
| #define HANDLE_PRAGMA_PACK 1 |
| #define PRAGMA_INSERT_ATTRIBUTES(node, pattr, prefix_attr) \ |
| insert_pack_attributes (node, pattr, prefix_attr) |
| extern void insert_pack_attributes PROTO((tree, tree *, tree *)); |
| #endif /* HANDLE_PRAGMA_PACK_PUSH_POP */ |
| |
| |
| #ifdef HANDLE_PRAGMA_WEAK |
| /* This structure contains any weak symbol declarations waiting to be emitted. */ |
| struct weak_syms |
| { |
| struct weak_syms * next; |
| char * name; |
| char * value; |
| }; |
| |
| /* Declared in varasm.c */ |
| extern struct weak_syms * weak_decls; |
| |
| extern int add_weak PROTO((char *, char *)); |
| #endif /* HANDLE_PRAGMA_WEAK */ |
| |
| |
| #if defined HANDLE_PRAGMA_PACK || defined HANDLE_PRAGMA_WEAK |
| /* Define HANDLE_GENERIC_PRAGMAS if any kind of front-end pragma |
| parsing is to be done. The code in GCC's generic C source files |
| will only look for the definition of this constant. They will |
| ignore definitions of HANDLE_PRAGMA_PACK and so on. */ |
| #define HANDLE_GENERIC_PRAGMAS 1 |
| #endif |
| |
| |
| #ifdef HANDLE_GENERIC_PRAGMAS |
| enum pragma_state |
| { |
| ps_start, |
| ps_done, |
| #ifdef HANDLE_PRAGMA_WEAK |
| ps_weak, |
| ps_name, |
| ps_equals, |
| ps_value, |
| #endif |
| #ifdef HANDLE_PRAGMA_PACK |
| ps_pack, |
| ps_left, |
| ps_align, |
| ps_right, |
| #endif |
| #ifdef HANDLE_PRAGMA_PACK_PUSH_POP |
| ps_push, |
| ps_pop, |
| ps_comma, |
| #endif |
| ps_bad |
| }; |
| |
| /* Handle a C style pragma */ |
| extern int handle_pragma_token PROTO((const char *, tree)); |
| |
| #endif /* HANDLE_GENERIC_PRAGMAS */ |
| #endif /* _C_PRAGMA_H */ |