a4cd5630b0
non-i386, non-unix, and generatable files have been trimmed, but can easily be added in later if needed. gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's handy to have both available for reference for such little cost. The freebsd-specific changes will then be committed, and once the dust has settled, the bmakefiles will be committed to use this code.
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/* GNU C varargs and stdargs support for Clipper. */
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/* Define __gnuc_va_list. */
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#ifndef __GNUC_VA_LIST
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#define __GNUC_VA_LIST
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typedef struct
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{
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int __va_ap; /* pointer to stack args */
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void *__va_reg[4]; /* pointer to r0,f0,r1,f1 */
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int __va_num; /* number of args processed */
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} __gnuc_va_list;
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#endif /* not __GNUC_VA_LIST */
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#if defined (_STDARG_H) || defined (_VARARGS_H)
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#define va_list __gnuc_va_list
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#define __va_list __gnuc_va_list /* acc compatibility */
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#define _VA_LIST
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#define _VA_LIST_
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#define _SYS_INT_STDARG_H /* acc compatibility */
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/* Call __builtin_next_arg even though we aren't using its value, so that
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we can verify that LASTARG is correct. */
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#ifdef _STDARG_H
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#define va_start(AP,LASTARG) \
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(__builtin_next_arg (LASTARG), \
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(AP) = *(va_list *)__builtin_saveregs(), \
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(AP).__va_num = __builtin_args_info (0), \
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(AP).__va_ap += __builtin_args_info (1))
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#else
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#define va_alist __builtin_va_alist
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/* The ... causes current_function_varargs to be set in cc1. */
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#define va_dcl va_list __builtin_va_alist; ...
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#define va_start(AP) \
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((AP) = *(va_list *)__builtin_saveregs(), \
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(AP).__va_num = __builtin_args_info (0))
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#endif /* _STDARG_H */
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/* round to alignment of `type' but keep a least integer alignment */
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#define __va_round(AP,TYPE) \
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((AP).__va_ap = ((AP).__va_ap + __alignof__ (TYPE) - 1 ) & \
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~(__alignof__ (TYPE) - 1), \
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((AP).__va_ap = ((AP).__va_ap + sizeof (int) - 1) & ~(sizeof (int) - 1)))
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#define va_arg(AP, TYPE) \
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(*((AP).__va_num < 2 && __builtin_classify_type (* (TYPE *)0) < 12 \
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? (__builtin_classify_type (* (TYPE *)0) == 8 \
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? ((TYPE *)(AP).__va_reg[2 * (AP).__va_num++ + 1]) \
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: ((TYPE *)(AP).__va_reg[2 * (AP).__va_num++ ])) \
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: ((AP).__va_num++, __va_round (AP,TYPE), ((TYPE *)((AP).__va_ap))++)))
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#define va_end(AP) ((void) 0)
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#endif /* defined (_STDARG_H) || defined (_VARARGS_H) */
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