mirror of
https://github.com/pmret/gcc-papermario.git
synced 2024-11-09 20:32:32 +01:00
80 lines
2.4 KiB
C
80 lines
2.4 KiB
C
/* GNU C varargs support for the Intel 80960. */
|
|
|
|
/* Define __gnuc_va_list. */
|
|
|
|
#ifndef __GNUC_VA_LIST
|
|
#define __GNUC_VA_LIST
|
|
/* The first element is the address of the first argument.
|
|
The second element is the number of bytes skipped past so far. */
|
|
typedef unsigned __gnuc_va_list[2];
|
|
#endif /* not __GNUC_VA_LIST */
|
|
|
|
/* If this is for internal libc use, don't define anything but
|
|
__gnuc_va_list. */
|
|
#if defined (_STDARG_H) || defined (_VARARGS_H)
|
|
|
|
/* In GCC version 2, we want an ellipsis at the end of the declaration
|
|
of the argument list. GCC version 1 can't parse it. */
|
|
|
|
#if __GNUC__ > 1
|
|
#define __va_ellipsis ...
|
|
#else
|
|
#define __va_ellipsis
|
|
#endif
|
|
|
|
/* The stack size of the type t. */
|
|
#define __vsiz(T) (((sizeof (T) + 3) / 4) * 4)
|
|
/* The stack alignment of the type t. */
|
|
#define __vali(T) (__alignof__ (T) >= 4 ? __alignof__ (T) : 4)
|
|
/* The offset of the next stack argument after one of type t at offset i. */
|
|
#define __vpad(I, T) ((((I) + __vali (T) - 1) / __vali (T)) \
|
|
* __vali (T) + __vsiz (T))
|
|
|
|
/* Avoid errors if compiling GCC v2 with GCC v1. */
|
|
#if __GNUC__ == 1
|
|
#define __extension__
|
|
#endif
|
|
|
|
#ifdef _STDARG_H
|
|
/* Call __builtin_next_arg even though we aren't using its value, so that
|
|
we can verify that firstarg is correct. */
|
|
#define va_start(AP, LASTARG) \
|
|
__extension__ \
|
|
({ __builtin_next_arg (LASTARG); \
|
|
__asm__ ("st g14,%0" : "=m" (*(AP))); \
|
|
(AP)[1] = (__builtin_args_info (0) + __builtin_args_info (1)) * 4; })
|
|
|
|
#else
|
|
|
|
#define va_alist __builtin_va_alist
|
|
#define va_dcl char *__builtin_va_alist; __va_ellipsis
|
|
#define va_start(AP) \
|
|
__extension__ \
|
|
({ __asm__ ("st g14,%0" : "=m" (*(AP))); \
|
|
(AP)[1] = (__builtin_args_info (0) + __builtin_args_info (1)) * 4; })
|
|
#endif
|
|
|
|
/* We cast to void * and then to TYPE * because this avoids
|
|
a warning about increasing the alignment requirement. */
|
|
#define va_arg(AP, T) \
|
|
( \
|
|
( \
|
|
((AP)[1] <= 48 && (__vpad ((AP)[1], T) > 48 || __vsiz (T) > 16)) \
|
|
? ((AP)[1] = 48 + __vsiz (T)) \
|
|
: ((AP)[1] = __vpad ((AP)[1], T)) \
|
|
), \
|
|
\
|
|
*((T *) (void *) ((char *) *(AP) + (AP)[1] - __vsiz (T))) \
|
|
)
|
|
|
|
#ifndef va_end
|
|
void va_end (__gnuc_va_list); /* Defined in libgcc.a */
|
|
#endif
|
|
#define va_end(AP) ((void *)0)
|
|
|
|
/* Copy __gnuc_va_list into another variable of this type. */
|
|
#define __va_copy(dest, src) (dest) = (src)
|
|
|
|
#endif /* defined (_STDARG_H) || defined (_VARARGS_H) */
|
|
|