43 lines
1.6 KiB
C
43 lines
1.6 KiB
C
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/* This is just like the default gvarargs.h
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except for differences decribed below. */
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/* Make this a macro rather than a typedef, so we can undef any other defn. */
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#define va_list __va___list
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/* This has to be a char * to be compatible with Sun.
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i.e., we have to pass a `va_list' to vsprintf. */
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typedef char * __va___list;
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/* In GCC version 2, we want an ellipsis at the end of the declaration
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of the argument list. GCC version 1 can't parse it. */
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#if __GNUC__ > 1
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#define __va_ellipsis ...
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#else
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#define __va_ellipsis
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#endif
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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 int __builtin_va_alist; __va_ellipsis
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/* The difference is to store the stack address in both components
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instead of in AP itself. */
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#define va_start(AP) \
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(__builtin_saveregs (), (AP) = ((char *) &__builtin_va_alist))
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#define va_end(pvar)
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#define __va_rounded_size(TYPE) \
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(((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
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/* RECORD_TYPE args passed using the C calling convention are
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passed by invisible reference. ??? RECORD_TYPE args passed
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in the stack are made to be word-aligned; for an aggregate that is
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not word-aligned, we advance the pointer to the first non-reg slot. */
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#define va_arg(pvar,TYPE) \
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({ TYPE __va_temp; \
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((__builtin_classify_type (__va_temp) >= 12) \
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? ((pvar) += __va_rounded_size (TYPE *), \
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**(TYPE **) (pvar) - __va_rounded_size (TYPE *)) \
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: ((pvar) += __va_rounded_size (TYPE), \
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*((TYPE *) ((pvar) - __va_rounded_size (TYPE)))));})
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