| 1 | |
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| 2 | /* Define __gnuc_va_list. */ |
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| 3 | |
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| 4 | #ifndef __GNUC_VA_LIST |
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| 5 | #define __GNUC_VA_LIST |
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| 6 | |
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| 7 | typedef double *__gnuc_va_list; |
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| 8 | #endif /* not __GNUC_VA_LIST */ |
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| 9 | |
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| 10 | /* If this is for internal libc use, don't define anything but |
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| 11 | __gnuc_va_list. */ |
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| 12 | #if defined (_STDARG_H) || defined (_VARARGS_H) |
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| 13 | #if __GNUC__ > 1 |
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| 14 | #define __va_ellipsis ... |
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| 15 | #define __gnuc_va_start(AP) ((AP) = (va_list)__builtin_saveregs()) |
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| 16 | #else |
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| 17 | #define va_alist __va_a__, __va_b__, __va_c__, __va_d__ |
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| 18 | #define __va_ellipsis |
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| 19 | #define __gnuc_va_start(AP)\ |
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| 20 | (AP) = (double *) &__va_a__, &__va_b__, &__va_c__, &__va_d__, \ |
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| 21 | (AP) = (double *)((char *)(AP) + 4) |
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| 22 | #endif /* __GNUC__ > 1 */ |
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| 23 | |
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| 24 | /* Call __builtin_next_arg even though we aren't using its value, so that |
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| 25 | we can verify that LASTARG is correct. */ |
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| 26 | #ifdef _STDARG_H |
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| 27 | #define va_start(AP,LASTARG) \ |
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| 28 | (__builtin_next_arg (LASTARG), __gnuc_va_start (AP)) |
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| 29 | #else |
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| 30 | /* The ... causes current_function_varargs to be set in cc1. */ |
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| 31 | #define va_dcl long va_alist; __va_ellipsis |
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| 32 | #define va_start(AP) __gnuc_va_start (AP) |
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| 33 | #endif |
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| 34 | |
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| 35 | #define va_arg(AP,TYPE) \ |
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| 36 | (*(sizeof(TYPE) > 8 ? \ |
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| 37 | ((AP = (__gnuc_va_list) ((char *)AP - sizeof (int))), \ |
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| 38 | (((TYPE *) (void *) (*((int *) (AP)))))) \ |
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| 39 | :((AP = \ |
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| 40 | (__gnuc_va_list) ((long)((char *)AP - sizeof (TYPE)) \ |
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| 41 | & (sizeof(TYPE) > 4 ? ~0x7 : ~0x3))), \ |
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| 42 | (((TYPE *) (void *) ((char *)AP + ((8 - sizeof(TYPE)) % 4))))))) |
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| 43 | |
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| 44 | #ifndef va_end |
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| 45 | void va_end (__gnuc_va_list); /* Defined in libgcc.a */ |
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| 46 | #endif |
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| 47 | #define va_end(AP) ((void)0) |
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| 48 | |
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| 49 | #endif /* defined (_STDARG_H) || defined (_VARARGS_H) */ |
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