1,15 → 1,75 |
#ifndef _STDARG_H |
#define _STDARG_H |
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#ifdef __x86_64__ |
#ifndef _WIN64 |
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//This should be in sync with the declaration on our lib/libtcc1.c |
/* GCC compatible definition of va_list. */ |
typedef struct { |
unsigned int gp_offset; |
unsigned int fp_offset; |
union { |
unsigned int overflow_offset; |
char *overflow_arg_area; |
}; |
char *reg_save_area; |
} __va_list_struct; |
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typedef __va_list_struct va_list[1]; |
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void __va_start(__va_list_struct *ap, void *fp); |
void *__va_arg(__va_list_struct *ap, int arg_type, int size, int align); |
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#define va_start(ap, last) __va_start(ap, __builtin_frame_address(0)) |
#define va_arg(ap, type) \ |
(*(type *)(__va_arg(ap, __builtin_va_arg_types(type), sizeof(type), __alignof__(type)))) |
#define va_copy(dest, src) (*(dest) = *(src)) |
#define va_end(ap) |
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#else /* _WIN64 */ |
typedef char *va_list; |
#define va_start(ap,last) __builtin_va_start(ap,last) |
#define va_arg(ap,type) (ap += 8, sizeof(type)<=8 ? *(type*)ap : **(type**)ap) |
#define va_copy(dest, src) ((dest) = (src)) |
#define va_end(ap) |
#endif |
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#elif __arm__ |
typedef char *va_list; |
#define _tcc_alignof(type) ((int)&((struct {char c;type x;} *)0)->x) |
#define _tcc_align(addr,type) (((unsigned)addr + _tcc_alignof(type) - 1) \ |
& ~(_tcc_alignof(type) - 1)) |
#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3) |
#define va_arg(ap,type) (ap = (void *) ((_tcc_align(ap,type)+sizeof(type)+3) \ |
&~3), *(type *)(ap - ((sizeof(type)+3)&~3))) |
#define va_copy(dest, src) (dest) = (src) |
#define va_end(ap) |
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#elif defined(__aarch64__) |
typedef struct { |
void *__stack; |
void *__gr_top; |
void *__vr_top; |
int __gr_offs; |
int __vr_offs; |
} va_list; |
#define va_start(ap, last) __va_start(ap, last) |
#define va_arg(ap, type) __va_arg(ap, type) |
#define va_end(ap) |
#define va_copy(dest, src) ((dest) = (src)) |
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#else /* __i386__ */ |
typedef char *va_list; |
/* only correct for i386 */ |
#define va_start(ap,last) ap = ((char *)&(last)) + ((sizeof(last)+3)&~3) |
#define va_arg(ap,type) (ap += (sizeof(type)+3)&~3, *(type *)(ap - ((sizeof(type)+3)&~3))) |
#define va_copy(dest, src) (dest) = (src) |
#define va_end(ap) |
#endif |
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/* fix a buggy dependency on GCC in libio.h */ |
typedef va_list __gnuc_va_list; |
#define _VA_LIST_DEFINED |
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#endif |
#endif /* _STDARG_H */ |