Annotation of sys/arch/sparc64/include/stdarg.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: stdarg.h,v 1.6 2006/04/09 03:07:53 deraadt Exp $ */
2: /* $NetBSD: stdarg.h,v 1.11 2000/07/23 21:36:56 mycroft Exp $ */
3:
4: /*
5: * Copyright (c) 1992, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
8: * This software was developed by the Computer Systems Engineering group
9: * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
10: * contributed to Berkeley.
11: *
12: * All advertising materials mentioning features or use of this software
13: * must display the following acknowledgement:
14: * This product includes software developed by the University of
15: * California, Lawrence Berkeley Laboratory.
16: *
17: * Redistribution and use in source and binary forms, with or without
18: * modification, are permitted provided that the following conditions
19: * are met:
20: * 1. Redistributions of source code must retain the above copyright
21: * notice, this list of conditions and the following disclaimer.
22: * 2. Redistributions in binary form must reproduce the above copyright
23: * notice, this list of conditions and the following disclaimer in the
24: * documentation and/or other materials provided with the distribution.
25: * 3. Neither the name of the University nor the names of its contributors
26: * may be used to endorse or promote products derived from this software
27: * without specific prior written permission.
28: *
29: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39: * SUCH DAMAGE.
40: *
41: * from: @(#)stdarg.h 8.2 (Berkeley) 9/27/93
42: */
43:
44: #ifndef _SPARC64_STDARG_H_
45: #define _SPARC64_STDARG_H_
46:
47: #include <sys/cdefs.h>
48: #include <machine/_types.h>
49:
50: #ifdef __lint__
51: #define __builtin_saveregs(t) (0)
52: #define __builtin_classify_type(t) (0)
53: #define __builtin_next_arg(t) ((t) ? 0 : 0)
54: #endif
55:
56: typedef __va_list va_list;
57:
58: #ifdef lint
59: #define va_start(ap,lastarg) ((ap) = (ap))
60: #else
61: #define va_start(ap, last) \
62: (__builtin_next_arg(last), (ap) = (va_list)__builtin_saveregs())
63: #endif /* lint */
64:
65: #if __BSD_VISIBLE
66: #define va_copy(dest, src) \
67: ((dest) = (src))
68: #endif
69:
70: #define va_end(ap)
71:
72: /*
73: * For sparcv9 code.
74: */
75: #define __va_arg8(ap, type) \
76: (*(type *)(void *)((ap) += 8, (ap) - 8))
77: #define __va_arg16(ap, type) \
78: (*(type *)(void *)((ap) = (va_list)(((unsigned long)(ap) + 31) & -16),\
79: (ap) - 16))
80: #define __va_int(ap, type) \
81: (*(type *)(void *)((ap) += 8, (ap) - sizeof(type)))
82:
83: #define __REAL_TYPE_CLASS 8
84: #define __RECORD_TYPE_CLASS 12
85: #define va_arg(ap, type) \
86: (__builtin_classify_type(*(type *)0) == __REAL_TYPE_CLASS ? \
87: (__alignof__(type) == 16 ? __va_arg16(ap, type) : \
88: __va_arg8(ap, type)) : \
89: (__builtin_classify_type(*(type *)0) < __RECORD_TYPE_CLASS ? \
90: __va_int(ap, type) : \
91: (sizeof(type) <= 8 ? __va_arg8(ap, type) : \
92: (sizeof(type) <= 16 ? __va_arg16(ap, type) : \
93: *__va_arg8(ap, type *)))))
94:
95: #endif /* !_SPARC64_STDARG_H_ */
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