#ifndef _STDARG_H#define _STDARG_H #ifdef __x86_64__#ifndef _WIN64 //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; typedef __va_list_struct va_list[1]; void __va_start(__va_list_struct *ap, void *fp);void *__va_arg(__va_list_struct *ap, int arg_type, int size, int align); #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) /* avoid conflicting definition for va_list on Macs. */#define _VA_LIST_T #else /* _WIN64 */typedef char *va_list;#define va_start(ap,last) __builtin_va_start(ap,last)#define va_arg(ap, t) ((sizeof(t) > 8 || (sizeof(t) & (sizeof(t) - 1))) \	? **(t **)((ap += 8) - 8) : *(t  *)((ap += 8) - 8))#define va_copy(dest, src) ((dest) = (src))#define va_end(ap)#endif #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) #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)) #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 /* fix a buggy dependency on GCC in libio.h */typedef va_list __gnuc_va_list;#define _VA_LIST_DEFINED #endif /* _STDARG_H */