osfmk/libsa/ppc/stdarg_apple.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /* stdarg.h for GNU.
  26    Note that the type used in va_arg is supposed to match the
  27    actual type **after default promotions**.
  28    Thus, va_arg (..., short) is not valid.  */
  29
  30 #ifndef _STDARG_H
  31 #ifndef _ANSI_STDARG_H_
  32 #ifndef __need___va_list
  33 #define _STDARG_H
  34 #define _ANSI_STDARG_H_
  35 #endif /* not __need___va_list */
  36 #undef __need___va_list
  37
  38 #ifdef __clipper__
  39 #include <va-clipper.h>
  40 #else
  41 #ifdef __m88k__
  42 #include <va-m88k.h>
  43 #else
  44 #ifdef __i860__
  45 #include <va-i860.h>
  46 #else
  47 #ifdef __hppa__
  48 #include <va-pa.h>
  49 #else
  50 #ifdef __mips__
  51 #include <va-mips.h>
  52 #else
  53 #ifdef __sparc__
  54 #include <va-sparc.h>
  55 #else
  56 #ifdef __i960__
  57 #include <va-i960.h>
  58 #else
  59 #ifdef __alpha__
  60 #include <va-alpha.h>
  61 #else
  62 #if defined (__H8300__) || defined (__H8300H__)
  63 #include <va-h8300.h>
  64 #else
  65 #if defined (__PPC__) && defined (_CALL_SYSV)
  66 #include <va-ppc.h>
  67 #else
  68
  69 /* Define __gnuc_va_list.  */
  70
  71 #ifndef __GNUC_VA_LIST
  72 #define __GNUC_VA_LIST
  73 #if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX) || defined(__NetBSD__)
  74 typedef char *__gnuc_va_list;
  75 #else
  76 typedef void *__gnuc_va_list;
  77 #endif
  78 #endif
  79
  80 /* Define the standard macros for the user,
  81    if this invocation was from the user program.  */
  82 #ifdef _STDARG_H
  83
  84 /* Amount of space required in an argument list for an arg of type TYPE.
  85    TYPE may alternatively be an expression whose type is used.  */
  86
  87 #if defined(sysV68)
  88 #define __va_rounded_size(TYPE)  \
  89   (((sizeof (TYPE) + sizeof (short) - 1) / sizeof (short)) * sizeof (short))
  90 #else
  91 #define __va_rounded_size(TYPE)  \
  92   (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
  93 #endif
  94
  95 #define va_start(AP, LASTARG)                                           \
  96  (AP = ((__gnuc_va_list) __builtin_next_arg (LASTARG)))
  97
  98 #undef va_end
  99 void va_end (__gnuc_va_list);           /* Defined in libgcc.a */
 100 #define va_end(AP)      ((void)0)
 101
 102 /* We cast to void * and then to TYPE * because this avoids
 103    a warning about increasing the alignment requirement.  */
 104
 105 #if defined (__arm__) || defined (__i386__) || defined (__i860__) || defined (__ns32000__) || defined (__vax__)
 106 /* This is for little-endian machines; small args are padded upward.  */
 107 #define va_arg(AP, TYPE)                                                \
 108  (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),     \
 109   *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
 110 #else /* big-endian */
 111 /* This is for big-endian machines; small args are padded downward.  */
 112 #define va_arg(AP, TYPE)                                                \
 113  (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),     \
 114   *((TYPE *) (void *) ((char *) (AP)                                    \
 115                        - ((sizeof (TYPE) < __va_rounded_size (char)     \
 116                            ? sizeof (TYPE) : __va_rounded_size (TYPE))))))
 117 #endif /* big-endian */
 118 #endif /* _STDARG_H */
 119
 120 #endif /* not powerpc with V.4 calling sequence */
 121 #endif /* not h8300 */
 122 #endif /* not alpha */
 123 #endif /* not i960 */
 124 #endif /* not sparc */
 125 #endif /* not mips */
 126 #endif /* not hppa */
 127 #endif /* not i860 */
 128 #endif /* not m88k */
 129 #endif /* not clipper */
 130
 131 #ifdef _STDARG_H
 132 /* Define va_list, if desired, from __gnuc_va_list. */
 133 /* We deliberately do not define va_list when called from
 134    stdio.h, because ANSI C says that stdio.h is not supposed to define
 135    va_list.  stdio.h needs to have access to that data type,
 136    but must not use that name.  It should use the name __gnuc_va_list,
 137    which is safe because it is reserved for the implementation.  */
 138
 139 #ifdef _HIDDEN_VA_LIST  /* On OSF1, this means varargs.h is "half-loaded".  */
 140 #undef _VA_LIST
 141 #endif
 142
 143 #ifdef _BSD_VA_LIST
 144 #undef _BSD_VA_LIST
 145 #endif
 146
 147 #ifdef __svr4__
 148 /* SVR4.2 uses _VA_LIST for an internal alias for va_list,
 149    so we must avoid testing it and setting it here.
 150    SVR4 uses _VA_LIST as a flag in stdarg.h, but we should
 151    have no conflict with that.  */
 152 #ifndef _VA_LIST_
 153 #define _VA_LIST_
 154 #ifdef __i860__
 155 #ifndef _VA_LIST
 156 #define _VA_LIST va_list
 157 #endif
 158 #endif /* __i860__ */
 159 typedef __gnuc_va_list va_list;
 160 #endif /* _VA_LIST_ */
 161 #else /* not __svr4__ */
 162
 163 /* The macro _VA_LIST_ is the same thing used by this file in Ultrix.
 164    But on BSD NET2 we must not test or define or undef it.
 165    (Note that the comments in NET 2's ansi.h
 166    are incorrect for _VA_LIST_--see stdio.h!)  */
 167 #if !defined (_VA_LIST_) || defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__) || defined(WINNT)
 168 /* The macro _VA_LIST_DEFINED is used in Windows NT 3.5  */
 169 #ifndef _VA_LIST_DEFINED
 170 /* The macro _VA_LIST is used in SCO Unix 3.2.  */
 171 #ifndef _VA_LIST
 172 /* The macro _VA_LIST_T_H is used in the Bull dpx2  */
 173 #ifndef _VA_LIST_T_H
 174 typedef __gnuc_va_list va_list;
 175 #endif /* not _VA_LIST_T_H */
 176 #endif /* not _VA_LIST */
 177 #endif /* not _VA_LIST_DEFINED */
 178 #if !(defined (__BSD_NET2__) || defined (____386BSD____) || defined (__bsdi__) || defined (__sequent__) || defined (__FreeBSD__))
 179 #define _VA_LIST_
 180 #endif
 181 #ifndef _VA_LIST
 182 #define _VA_LIST
 183 #endif
 184 #ifndef _VA_LIST_DEFINED
 185 #define _VA_LIST_DEFINED
 186 #endif
 187 #ifndef _VA_LIST_T_H
 188 #define _VA_LIST_T_H
 189 #endif
 190
 191 #endif /* not _VA_LIST_, except on certain systems */
 192
 193 #endif /* not __svr4__ */
 194
 195 #endif /* _STDARG_H */
 196
 197 #endif /* not _ANSI_STDARG_H_ */
 198 #endif /* not _STDARG_H */