source: trunk/third/gcc/ginclude/varargs.h @ 8834

/* Record that this is varargs.h; this turns off stdarg.h.  */

#ifndef _VARARGS_H
#define _VARARGS_H

#ifdef __sparc__
#include <va-sparc.h>
#else
#ifdef __spur__
#include <va-spur.h>
#else
#ifdef __mips__
#include <va-mips.h>
#else
#ifdef __i860__
#include <va-i860.h>
#else
#ifdef __pyr__
#include <va-pyr.h>
#else
#ifdef __clipper__
#include <va-clipper.h>
#else
#ifdef __m88k__
#include <va-m88k.h>
#else
#if defined(__hppa__) || defined(hp800)
#include <va-pa.h>
#else
#ifdef __i960__
#include <va-i960.h>
#else
#ifdef __alpha__
#include <va-alpha.h>
#else
#if defined (__H8300__) || defined (__H8300H__)
#include <va-h8300.h>
#else
#if defined (__PPC__) && defined (_CALL_SYSV)
#include <va-ppc.h>
#else

#ifdef __NeXT__

/* On Next, erase any vestiges of stdarg.h.  */

#ifdef _ANSI_STDARG_H_
#define _VA_LIST_
#endif
#define _ANSI_STDARG_H_ 

#undef va_alist
#undef va_dcl
#undef va_list
#undef va_start
#undef va_end
#undef __va_rounded_size
#undef va_arg
#endif  /* __NeXT__ */

/* In GCC version 2, we want an ellipsis at the end of the declaration
   of the argument list.  GCC version 1 can't parse it.  */

#if __GNUC__ > 1
#define __va_ellipsis ...
#else
#define __va_ellipsis
#endif

/* These macros implement traditional (non-ANSI) varargs
   for GNU C.  */

#define va_alist  __builtin_va_alist
/* The ... causes current_function_varargs to be set in cc1.  */
#define va_dcl    int __builtin_va_alist; __va_ellipsis

/* Define __gnuc_va_list, just as in gstdarg.h.  */

#ifndef __GNUC_VA_LIST
#define __GNUC_VA_LIST
#if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX)
typedef char *__gnuc_va_list;
#else
typedef void *__gnuc_va_list;
#endif
#endif

#define va_start(AP)  AP=(char *) &__builtin_va_alist

#define va_end(AP)      ((void)0)

#if defined(sysV68)
#define __va_rounded_size(TYPE)  \
  (((sizeof (TYPE) + sizeof (short) - 1) / sizeof (short)) * sizeof (short))
#else
#define __va_rounded_size(TYPE)  \
  (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
#endif

#if defined (__arm__) || defined (__i386__) || defined (__i860__) || defined (__ns32000__) || defined (__vax__)
/* This is for little-endian machines; small args are padded upward.  */
#define va_arg(AP, TYPE)                                                \
 (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),     \
  *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
#else /* big-endian */
/* This is for big-endian machines; small args are padded downward.  */
#define va_arg(AP, TYPE)                                                \
 (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),     \
  *((TYPE *) (void *) ((char *) (AP)                                    \
                       - ((sizeof (TYPE) < __va_rounded_size (char)     \
                           ? sizeof (TYPE) : __va_rounded_size (TYPE))))))
#endif /* big-endian */

#endif /* not powerpc with V.4 calling sequence */
#endif /* not h8300 */
#endif /* not alpha */
#endif /* not i960 */
#endif /* not hppa */
#endif /* not m88k */
#endif /* not clipper */
#endif /* not pyr */
#endif /* not i860 */
#endif /* not mips */
#endif /* not spur */
#endif /* not sparc */
#endif /* not _VARARGS_H */

/* Define va_list from __gnuc_va_list.  */

#ifdef _HIDDEN_VA_LIST  /* On OSF1, this means varargs.h is "half-loaded".  */
#undef _VA_LIST
#endif

#ifdef __svr4__
/* SVR4.2 uses _VA_LIST for an internal alias for va_list,
   so we must avoid testing it and setting it here.
   SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
   have no conflict with that.  */
#ifndef _VA_LIST_
#define _VA_LIST_
#ifdef __i860__
#ifndef _VA_LIST
#define _VA_LIST va_list
#endif
#endif /* __i860__ */
typedef __gnuc_va_list va_list;
#endif /* _VA_LIST_ */

#else /* not __svr4__ */

/* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
   But on BSD NET2 we must not test or define or undef it.
   (Note that the comments in NET 2's ansi.h
   are incorrect for _VA_LIST_--see stdio.h!)  */
/* Michael Eriksson <mer@sics.se> at Thu Sep 30 11:00:57 1993:
   Sequent defines _VA_LIST_ in <machine/machtypes.h> to be the type to
   use for va_list (``typedef _VA_LIST_ va_list'') */
#if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
/* The macro _VA_LIST_DEFINED is used in Windows NT 3.5  */
#ifndef _VA_LIST_DEFINED
/* The macro _VA_LIST is used in SCO Unix 3.2.  */
#ifndef _VA_LIST
/* The macro _VA_LIST_T_H is used in the Bull dpx2  */
#ifndef _VA_LIST_T_H
typedef __gnuc_va_list va_list;
#endif /* not _VA_LIST_T_H */
#endif /* not _VA_LIST */
#endif /* not _VA_LIST_DEFINED */
#if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
#define _VA_LIST_
#endif
#ifndef _VA_LIST
#define _VA_LIST
#endif
#ifndef _VA_LIST_DEFINED
#define _VA_LIST_DEFINED
#endif
#ifndef _VA_LIST_T_H
#define _VA_LIST_T_H
#endif

#endif /* not _VA_LIST_, except on certain systems */

#endif /* not __svr4__ */

/* The next BSD release (if there is one) wants this symbol to be
   undefined instead of _VA_LIST_.  */
#ifdef _BSD_VA_LIST
#undef _BSD_VA_LIST
#endif