Subversion Repositories or1k_old

 /*

  * @(#) 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

#endif