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/* Pragma related interfaces.
Copyright (C) 1995, 1998, 1999 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
#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 */
/* 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.
With #pragma poison, this is always set. */
#define HANDLE_GENERIC_PRAGMAS 1
#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_pushcomma, ps_pushid, ps_pushcomma2,
ps_pop, ps_popcomma,
#endif
ps_poison,
ps_bad
};
/* Handle a C style pragma */
extern int handle_pragma_token PROTO((const char *, tree));
#endif /* HANDLE_GENERIC_PRAGMAS */
extern void init_pragma PROTO((void));
#endif /* _C_PRAGMA_H */
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