[279] | 1 | #ifndef _STDARG_H
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| 2 | #define _STDARG_H
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| 3 |
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| 4 | #ifdef __x86_64__
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| 5 | #ifndef _WIN64
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| 6 |
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[331] | 7 | //This should be in sync with the declaration on our lib/libtcc1.c
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| 8 | /* GCC compatible definition of va_list. */
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| 9 | typedef struct {
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| 10 | unsigned int gp_offset;
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| 11 | unsigned int fp_offset;
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| 12 | union {
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| 13 | unsigned int overflow_offset;
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| 14 | char *overflow_arg_area;
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| 15 | };
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| 16 | char *reg_save_area;
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| 17 | } __va_list_struct;
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[279] | 18 |
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[331] | 19 | typedef __va_list_struct va_list[1];
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[279] | 20 |
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[331] | 21 | void __va_start(__va_list_struct *ap, void *fp);
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| 22 | void *__va_arg(__va_list_struct *ap, int arg_type, int size, int align);
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| 23 |
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| 24 | #define va_start(ap, last) __va_start(ap, __builtin_frame_address(0))
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[279] | 25 | #define va_arg(ap, type) \
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[331] | 26 | (*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type), __alignof__(type))))
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| 27 | #define va_copy(dest, src) (*(dest) = *(src))
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| 28 | #define va_end(ap)
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[279] | 29 |
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[331] | 30 | /* avoid conflicting definition for va_list on Macs. */
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| 31 | #define _VA_LIST_T
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| 32 |
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[279] | 33 | #else /* _WIN64 */
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| 34 | typedef char *va_list;
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[331] | 35 | #define va_start(ap,last) __builtin_va_start(ap,last)
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| 36 | #define va_arg(ap, t) ((sizeof(t) > 8 || (sizeof(t) & (sizeof(t) - 1))) \
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| 37 | ? **(t **)((ap += 8) - 8) : *(t *)((ap += 8) - 8))
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| 38 | #define va_copy(dest, src) ((dest) = (src))
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[279] | 39 | #define va_end(ap)
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| 40 | #endif
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| 41 |
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[331] | 42 | #elif __arm__
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| 43 | typedef char *va_list;
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| 44 | #define _tcc_alignof(type) ((int)&((struct {char c;type x;} *)0)->x)
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| 45 | #define _tcc_align(addr,type) (((unsigned)addr + _tcc_alignof(type) - 1) \
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| 46 | & ~(_tcc_alignof(type) - 1))
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| 47 | #define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
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| 48 | #define va_arg(ap,type) (ap = (void *) ((_tcc_align(ap,type)+sizeof(type)+3) \
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| 49 | &~3), *(type *)(ap - ((sizeof(type)+3)&~3)))
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| 50 | #define va_copy(dest, src) (dest) = (src)
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| 51 | #define va_end(ap)
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| 52 |
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| 53 | #elif defined(__aarch64__)
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| 54 | typedef struct {
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| 55 | void *__stack;
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| 56 | void *__gr_top;
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| 57 | void *__vr_top;
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| 58 | int __gr_offs;
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| 59 | int __vr_offs;
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| 60 | } va_list;
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| 61 | #define va_start(ap, last) __va_start(ap, last)
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| 62 | #define va_arg(ap, type) __va_arg(ap, type)
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| 63 | #define va_end(ap)
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| 64 | #define va_copy(dest, src) ((dest) = (src))
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| 65 |
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[279] | 66 | #else /* __i386__ */
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| 67 | typedef char *va_list;
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| 68 | /* only correct for i386 */
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| 69 | #define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3)
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| 70 | #define va_arg(ap,type) (ap += (sizeof(type)+3)&~3, *(type *)(ap - ((sizeof(type)+3)&~3)))
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| 71 | #define va_copy(dest, src) (dest) = (src)
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| 72 | #define va_end(ap)
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| 73 | #endif
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| 74 |
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| 75 | /* fix a buggy dependency on GCC in libio.h */
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| 76 | typedef va_list __gnuc_va_list;
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| 77 | #define _VA_LIST_DEFINED
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| 78 |
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| 79 | #endif /* _STDARG_H */
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