gcc/ginclude/varargs.h

   1 /* Record that this is varargs.h; this turns off stdarg.h.  */
   2
   3 #ifndef _VARARGS_H
   4 #define _VARARGS_H
   5
   6 #ifdef __sparc__
   7 #include "va-sparc.h"
   8 #else
   9 #ifdef __spur__
  10 #include "va-spur.h"
  11 #else
  12 #ifdef __mips__
  13 #include "va-mips.h"
  14 #else
  15 #ifdef __i860__
  16 #include "va-i860.h"
  17 #else
  18 #ifdef __pyr__
  19 #include "va-pyr.h"
  20 #else
  21 #ifdef __clipper__
  22 #include "va-clipper.h"
  23 #else
  24 #ifdef __m88k__
  25 #include "va-m88k.h"
  26 #else
  27 #if defined(__hppa__) || defined(hp800)
  28 #include "va-pa.h"
  29 #else
  30 #ifdef __i960__
  31 #include "va-i960.h"
  32 #else
  33 #ifdef __alpha__
  34 #include "va-alpha.h"
  35 #else
  36 #if defined (__H8300__) || defined (__H8300H__) || defined (__H8300S__)
  37 #include "va-h8300.h"
  38 #else
  39 #if defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
  40 #include "va-ppc.h"
  41 #else
  42 #ifdef __arc__
  43 #include "va-arc.h"
  44 #else
  45 #ifdef __M32R__
  46 #include "va-m32r.h"
  47 #else
  48 #ifdef __sh__
  49 #include "va-sh.h"
  50 #else
  51 #ifdef __mn10300__
  52 #include "va-mn10300.h"
  53 #else
  54 #ifdef __mn10200__
  55 #include "va-mn10200.h"
  56 #else
  57 #ifdef __v850__
  58 #include "va-v850.h"
  59 #else
  60
  61 #ifdef __NeXT__
  62
  63 /* On Next, erase any vestiges of stdarg.h.  */
  64
  65 #ifdef _ANSI_STDARG_H_
  66 #define _VA_LIST_
  67 #endif
  68 #define _ANSI_STDARG_H_
  69
  70 #undef va_alist
  71 #undef va_dcl
  72 #undef va_list
  73 #undef va_start
  74 #undef va_end
  75 #undef __va_rounded_size
  76 #undef va_arg
  77 #endif  /* __NeXT__ */
  78
  79 /* In GCC version 2, we want an ellipsis at the end of the declaration
  80    of the argument list.  GCC version 1 can't parse it.  */
  81
  82 #if __GNUC__ > 1
  83 #define __va_ellipsis ...
  84 #else
  85 #define __va_ellipsis
  86 #endif
  87
  88 /* These macros implement traditional (non-ANSI) varargs
  89    for GNU C.  */
  90
  91 #define va_alist  __builtin_va_alist
  92 /* The ... causes current_function_varargs to be set in cc1.  */
  93 #define va_dcl    int __builtin_va_alist; __va_ellipsis
  94
  95 /* Define __gnuc_va_list, just as in gstdarg.h.  */
  96
  97 #ifndef __GNUC_VA_LIST
  98 #define __GNUC_VA_LIST
  99 #if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX)
 100 typedef char *__gnuc_va_list;
 101 #else
 102 typedef void *__gnuc_va_list;
 103 #endif
 104 #endif
 105
 106 #define va_start(AP)  AP=(char *) &__builtin_va_alist
 107
 108 #define va_end(AP)      ((void)0)
 109
 110 #if defined(sysV68)
 111 #define __va_rounded_size(TYPE)  \
 112   (((sizeof (TYPE) + sizeof (short) - 1) / sizeof (short)) * sizeof (short))
 113 #else
 114 #define __va_rounded_size(TYPE)  \
 115   (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
 116 #endif
 117
 118 #if (defined (__arm__) && ! defined (__ARMEB__)) || defined (__i386__) || defined (__i860__) || defined (__ns32000__) || defined (__vax__)
 119 /* This is for little-endian machines; small args are padded upward.  */
 120 #define va_arg(AP, TYPE)                                                \
 121  (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),     \
 122   *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
 123 #else /* big-endian */
 124 /* This is for big-endian machines; small args are padded downward.  */
 125 #define va_arg(AP, TYPE)                                                \
 126  (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),     \
 127   *((TYPE *) (void *) ((char *) (AP)                                    \
 128                        - ((sizeof (TYPE) < __va_rounded_size (char)     \
 129                            ? sizeof (TYPE) : __va_rounded_size (TYPE))))))
 130 #endif /* big-endian */
 131
 132 /* Copy __gnuc_va_list into another variable of this type.  */
 133 #define __va_copy(dest, src) (dest) = (src)
 134
 135 #endif /* not v850 */
 136 #endif /* not mn10200 */
 137 #endif /* not mn10300 */
 138 #endif /* not sh */
 139 #endif /* not m32r */
 140 #endif /* not arc */
 141 #endif /* not powerpc with V.4 calling sequence */
 142 #endif /* not h8300 */
 143 #endif /* not alpha */
 144 #endif /* not i960 */
 145 #endif /* not hppa */
 146 #endif /* not m88k */
 147 #endif /* not clipper */
 148 #endif /* not pyr */
 149 #endif /* not i860 */
 150 #endif /* not mips */
 151 #endif /* not spur */
 152 #endif /* not sparc */
 153 #endif /* not _VARARGS_H */
 154
 155 /* Define va_list from __gnuc_va_list.  */
 156
 157 #ifdef _HIDDEN_VA_LIST  /* On OSF1, this means varargs.h is "half-loaded".  */
 158 #undef _VA_LIST
 159 #endif
 160
 161 #if defined(__svr4__) || (defined(_SCO_DS) && !defined(__VA_LIST))
 162 /* SVR4.2 uses _VA_LIST for an internal alias for va_list,
 163    so we must avoid testing it and setting it here.
 164    SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
 165    have no conflict with that.  */
 166 #ifndef _VA_LIST_
 167 #define _VA_LIST_
 168 #ifdef __i860__
 169 #ifndef _VA_LIST
 170 #define _VA_LIST va_list
 171 #endif
 172 #endif /* __i860__ */
 173 typedef __gnuc_va_list va_list;
 174 #ifdef _SCO_DS
 175 #define __VA_LIST
 176 #endif
 177 #endif /* _VA_LIST_ */
 178
 179 #else /* not __svr4__  || _SCO_DS */
 180
 181 /* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
 182    But on BSD NET2 we must not test or define or undef it.
 183    (Note that the comments in NET 2's ansi.h
 184    are incorrect for _VA_LIST_--see stdio.h!)  */
 185 /* Michael Eriksson <mer@sics.se> at Thu Sep 30 11:00:57 1993:
 186    Sequent defines _VA_LIST_ in <machine/machtypes.h> to be the type to
 187    use for va_list (``typedef _VA_LIST_ va_list'') */
 188 #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
 189 /* The macro _VA_LIST_DEFINED is used in Windows NT 3.5  */
 190 #ifndef _VA_LIST_DEFINED
 191 /* The macro _VA_LIST is used in SCO Unix 3.2.  */
 192 #ifndef _VA_LIST
 193 /* The macro _VA_LIST_T_H is used in the Bull dpx2  */
 194 #ifndef _VA_LIST_T_H
 195 typedef __gnuc_va_list va_list;
 196 #endif /* not _VA_LIST_T_H */
 197 #endif /* not _VA_LIST */
 198 #endif /* not _VA_LIST_DEFINED */
 199 #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
 200 #define _VA_LIST_
 201 #endif
 202 #ifndef _VA_LIST
 203 #define _VA_LIST
 204 #endif
 205 #ifndef _VA_LIST_DEFINED
 206 #define _VA_LIST_DEFINED
 207 #endif
 208 #ifndef _VA_LIST_T_H
 209 #define _VA_LIST_T_H
 210 #endif
 211
 212 #endif /* not _VA_LIST_, except on certain systems */
 213
 214 #endif /* not __svr4__ */
 215
 216 /* The next BSD release (if there is one) wants this symbol to be
 217    undefined instead of _VA_LIST_.  */
 218 #ifdef _BSD_VA_LIST
 219 #undef _BSD_VA_LIST
 220 #endif