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authorEric Andersen <andersen@codepoet.org>2001-02-21 18:58:30 +0000
committerEric Andersen <andersen@codepoet.org>2001-02-21 18:58:30 +0000
commit36970cc69149ef3a3f32d57663a14adedaebcbb9 (patch)
treea82e8df0bf9a6771c4b27f9f15c5a2844e8f81ea /include/stdarg.h
parent93ccb0356b10af44f620ec035fb76fa8a1165c22 (diff)
Add an SH port done by Jean-Yves Avenard of Hewlett-Packard - Embedded
and Personal Systems. Thanks! -Erik
Diffstat (limited to 'include/stdarg.h')
-rw-r--r--include/stdarg.h250
1 files changed, 204 insertions, 46 deletions
diff --git a/include/stdarg.h b/include/stdarg.h
index 321e6646e..24f338319 100644
--- a/include/stdarg.h
+++ b/include/stdarg.h
@@ -1,47 +1,205 @@
- /*
- * @(#) stdarg.h 1.2 91/11/30 21:10:39
- *
- * Sample stdarg.h file for use with the unproto filter.
- *
- * This file serves two purposes.
- *
- * 1 - As an include file for use with ANSI-style C source that implements
- * variadic functions.
- *
- * 2 - To configure the unproto filter itself. If the _VA_ALIST_ macro is
- * defined, its value will appear in the place of the "..." in argument
- * lists of variadic function *definitions* (not declarations).
- *
- * Compilers that pass arguments via the stack can use the default code at the
- * end of this file (this usually applies for the VAX, MC68k and 80*86
- * architectures).
- *
- * RISC-based systems often need special tricks. An example of the latter is
- * given for the SPARC architecture. Read your /usr/include/varargs.h for
- * more information.
- *
- * You can use the varargs.c program provided with the unproto package to
- * verify that the stdarg.h file has been set up correctly.
- */
-
-#ifndef __STDARG_H
-#define __STDARG_H
-
-#ifdef sparc
-# define _VA_ALIST_ "__builtin_va_alist"
- typedef char *va_list;
-# define va_start(ap, p) (ap = (char *) &__builtin_va_alist)
-# define va_arg(ap, type) ((type *) __builtin_va_arg_incr((type *) ap))[0]
-# define va_end(ap)
-#else /* vax, mc68k, 80*86 */
- typedef char *va_list;
-# define va_start(ap, p) (ap = (char *) (&(p)+1))
-# define va_arg(ap, type) ((type *) (ap += sizeof(type)))[-1]
-# define va_end(ap)
-#endif
-
-#endif /* __STDARG_H */
-
-#if __FIRST_ARG_IN_AX__
-#error First arg is in a register, stdarg.h cannot take its address
+/* 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__) || defined (__H8300S__)
+#include "va-h8300.h"
+#else
+#if defined (__PPC__) && (defined (_CALL_SYSV) || defined (_WIN32))
+#include "va-ppc.h"
+#else
+#ifdef __arc__
+#include "va-arc.h"
+#else
+#ifdef __M32R__
+#include "va-m32r.h"
+#else
+#ifdef __sh__
+#include "va-sh.h"
+#else
+#ifdef __mn10300__
+#include "va-mn10300.h"
+#else
+#ifdef __mn10200__
+#include "va-mn10200.h"
+#else
+#ifdef __v850__
+#include "va-v850.h"
+#else
+
+/* Define __gnuc_va_list. */
+
+#ifndef __GNUC_VA_LIST
+#define __GNUC_VA_LIST
+#if defined(__svr4__) || defined(_AIX) || defined(_M_UNIX) || defined(__NetBSD__)
+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. */
+
+#if (defined (__arm__) && ! defined (__ARMEB__)) || 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 */
+
+/* Copy __gnuc_va_list into another variable of this type. */
+#define __va_copy(dest, src) (dest) = (src)
+
+#endif /* _STDARG_H */
+
+#endif /* not v850 */
+#endif /* not mn10200 */
+#endif /* not mn10300 */
+#endif /* not sh */
+#endif /* not m32r */
+#endif /* not arc */
+#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
+
+#if defined(__svr4__) || (defined(_SCO_DS) && !defined(__VA_LIST))
+/* 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;
+#ifdef _SCO_DS
+#define __VA_LIST
+#endif
+#endif /* _VA_LIST_ */
+#else /* not __svr4__ || _SCO_DS */
+
+/* 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
+#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__ */
+
+#endif /* _STDARG_H */
+
+#endif /* not _ANSI_STDARG_H_ */
+#endif /* not _STDARG_H */