-/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+/*===---- stdarg.h - Variable argument handling ----------------------------===
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * Copyright (c) 2008 Eli Friedman
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ *===-----------------------------------------------------------------------===
*/
-/* stdarg.h for GNU.
- Note that the type used in va_arg is supposed to match the
- actual type **after default promotions**.
- Thus, va_arg (..., short) is not valid. */
-
-#ifndef _STDARG_H
-#ifndef _ANSI_STDARG_H_
-#ifndef __need___va_list
-#define _STDARG_H
-#define _ANSI_STDARG_H_
-#endif /* not __need___va_list */
-#undef __need___va_list
-
-#ifdef __clipper__
-#include <va-clipper.h>
-#else
-#ifdef __m88k__
-#include <va-m88k.h>
-#else
-#ifdef __i860__
-#include <va-i860.h>
-#else
-#ifdef __hppa__
-#include <va-pa.h>
-#else
-#ifdef __mips__
-#include <va-mips.h>
-#else
-#ifdef __sparc__
-#include <va-sparc.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
-
-/* Define __gnuc_va_list. */
-
-#ifndef __GNUC_VA_LIST
-#define __GNUC_VA_LIST
-#if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX) || defined(__NetBSD__) || (defined(__APPLE__) && defined(__ppc__))
-typedef char *__gnuc_va_list;
-#else
-typedef void *__gnuc_va_list;
-#endif
-#endif
-
-/* Define the standard macros for the user,
- if this invocation was from the user program. */
-#ifdef _STDARG_H
-
-/* Amount of space required in an argument list for an arg of type TYPE.
- TYPE may alternatively be an expression whose type is used. */
-
-#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
-
-#define va_start(AP, LASTARG) \
- (AP = ((__gnuc_va_list) __builtin_next_arg (LASTARG)))
-
-#undef va_end
-void va_end (__gnuc_va_list); /* Defined in libgcc.a */
-#define va_end(AP) ((void)0)
-/* We cast to void * and then to TYPE * because this avoids
- a warning about increasing the alignment requirement. */
+#ifndef __STDARG_H
+#define __STDARG_H
-#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 /* _STDARG_H */
-
-#endif /* not powerpc with V.4 calling sequence */
-#endif /* not h8300 */
-#endif /* not alpha */
-#endif /* not i960 */
-#endif /* not sparc */
-#endif /* not mips */
-#endif /* not hppa */
-#endif /* not i860 */
-#endif /* not m88k */
-#endif /* not clipper */
-
-#ifdef _STDARG_H
-/* Define va_list, if desired, from __gnuc_va_list. */
-/* We deliberately do not define va_list when called from
- stdio.h, because ANSI C says that stdio.h is not supposed to define
- va_list. stdio.h needs to have access to that data type,
- but must not use that name. It should use the name __gnuc_va_list,
- which is safe because it is reserved for the implementation. */
-
-#ifdef _HIDDEN_VA_LIST /* On OSF1, this means varargs.h is "half-loaded". */
-#undef _VA_LIST
-#endif
-
-#ifdef _BSD_VA_LIST
-#undef _BSD_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!) */
-#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
+typedef __builtin_va_list 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
+#define va_start(ap, param) __builtin_va_start(ap, param)
+#define va_end(ap) __builtin_va_end(ap)
+#define va_arg(ap, type) __builtin_va_arg(ap, type)
-#endif /* not _VA_LIST_, except on certain systems */
+/* GCC always defines __va_copy, but does not define va_copy unless in c99 mode
+ * or -ansi is not specified, since it was not part of C90.
+ */
+#define __va_copy(d,s) __builtin_va_copy(d,s)
-#endif /* not __svr4__ */
+#if __STDC_VERSION__ >= 199900L || __cplusplus >= 201103L || !defined(__STRICT_ANSI__)
+#define va_copy(dest, src) __builtin_va_copy(dest, src)
+#endif
-#endif /* _STDARG_H */
+/* Hack required to make standard headers work, at least on Ubuntu */
+#define __GNUC_VA_LIST 1
+typedef __builtin_va_list __gnuc_va_list;
-#endif /* not _ANSI_STDARG_H_ */
-#endif /* not _STDARG_H */
+#endif /* __STDARG_H */
projects / apple / xnu.git / blobdiff