diff options
Diffstat (limited to 'mdk-stage1/dietlibc/include/stdarg-cruft.h')
| -rw-r--r-- | mdk-stage1/dietlibc/include/stdarg-cruft.h | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/include/stdarg-cruft.h b/mdk-stage1/dietlibc/include/stdarg-cruft.h new file mode 100644 index 000000000..fbd9e0ca4 --- /dev/null +++ b/mdk-stage1/dietlibc/include/stdarg-cruft.h @@ -0,0 +1,299 @@ +#if defined(__sparc__) || defined(__alpha__) || defined(__mips__) +enum { + __no_type_class = -1, + __void_type_class, + __integer_type_class, + __char_type_class, + __enumeral_type_class, + __boolean_type_class, + __pointer_type_class, + __reference_type_class, + __offset_type_class, + __real_type_class, + __complex_type_class, + __function_type_class, + __method_type_class, + __record_type_class, + __union_type_class, + __array_type_class, + __string_type_class, + __set_type_class, + __file_type_class, + __lang_type_class +}; +#endif + +#if defined(__sparc__) + +typedef char* va_list; +#define va_end(ap) ap=0 + +#define va_start(AP, LASTARG) \ + (__builtin_next_arg (LASTARG), AP = (char *) __builtin_saveregs ()) + +#define __va_rounded_size(TYPE) \ + (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int)) + +/* We don't declare the union member `d' to have type TYPE + because that would lose in C++ if TYPE has a constructor. */ +/* We cast to void * and then to TYPE * because this avoids + a warning about increasing the alignment requirement. + The casts to char * avoid warnings about invalid pointer arithmetic. */ +#define va_arg(pvar,TYPE) \ +__extension__ \ +(*({((__builtin_classify_type (*(TYPE*) 0) >= __record_type_class \ + || (__builtin_classify_type (*(TYPE*) 0) == __real_type_class \ + && sizeof (TYPE) == 16)) \ + ? ((pvar) = (char *)(pvar) + __va_rounded_size (TYPE *), \ + *(TYPE **) (void *) ((char *)(pvar) - __va_rounded_size (TYPE *))) \ + : __va_rounded_size (TYPE) == 8 \ + ? ({ union {char __d[sizeof (TYPE)]; int __i[2];} __u; \ + __u.__i[0] = ((int *) (void *) (pvar))[0]; \ + __u.__i[1] = ((int *) (void *) (pvar))[1]; \ + (pvar) = (char *)(pvar) + 8; \ + (TYPE *) (void *) __u.__d; }) \ + : ((pvar) = (char *)(pvar) + __va_rounded_size (TYPE), \ + ((TYPE *) (void *) ((char *)(pvar) - __va_rounded_size (TYPE)))));})) + + +#elif defined(__mips__) + +typedef char * va_list; + +#ifdef __mips64 +#define __va_rounded_size(__TYPE) \ + (((sizeof (__TYPE) + 8 - 1) / 8) * 8) +#else +#define __va_rounded_size(__TYPE) \ + (((sizeof (__TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int)) +#endif +#ifdef __mips64 +#define __va_reg_size 8 +#else +#define __va_reg_size 4 +#endif + +#define va_start(__AP, __LASTARG) \ + (__AP = (va_list) __builtin_next_arg (__LASTARG)) + +#ifdef __mips64 +#ifdef __MIPSEB__ +#define va_arg(__AP, __type) \ + ((__type *) (void *) (__AP = (char *) \ + ((((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8) \ + + __va_rounded_size (__type))))[-1] +#else +#define va_arg(__AP, __type) \ + ((__AP = (char *) ((((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8) \ + + __va_rounded_size (__type))), \ + *(__type *) (void *) (__AP - __va_rounded_size (__type))) +#endif + +#else /* not __mips64 */ + +#ifdef __MIPSEB__ +/* For big-endian machines. */ +#define va_arg(__AP, __type) \ + ((__AP = (char *) ((__alignof__ (__type) > 4 \ + ? ((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8 \ + : ((__PTRDIFF_TYPE__)__AP + 4 - 1) & -4) \ + + __va_rounded_size (__type))), \ + *(__type *) (void *) (__AP - __va_rounded_size (__type))) +#else +/* For little-endian machines. */ +#define va_arg(__AP, __type) \ + ((__type *) (void *) (__AP = (char *) ((__alignof__(__type) > 4 \ + ? ((__PTRDIFF_TYPE__)__AP + 8 - 1) & -8 \ + : ((__PTRDIFF_TYPE__)__AP + 4 - 1) & -4) \ + + __va_rounded_size(__type))))[-1] +#endif +#endif + +#elif defined(__powerpc__) + +typedef struct __va_list_tag { + unsigned char gpr; /* index into the array of 8 GPRs stored in the + register save area gpr=0 corresponds to r3, + gpr=1 to r4, etc. */ + unsigned char fpr; /* index into the array of 8 FPRs stored in the + register save area fpr=0 corresponds to f1, + fpr=1 to f2, etc. */ + char *overflow_arg_area; /* location on stack that holds the next + overflow argument */ + char *reg_save_area; /* where r3:r10 and f1:f8, if saved are stored */ +} va_list[1]; + +#define __va_overflow(AP) (AP)->overflow_arg_area +#ifdef __OPTIMIZE__ +extern void __va_arg_type_violation(void) __attribute__((__noreturn__)); +#else +#define __va_arg_type_violation() +#endif + +typedef struct { + long __gp_save[8]; /* save area for GP registers */ + double __fp_save[8]; /* save area for FP registers */ +} __va_regsave_t; + +/* Macros to access the register save area */ +/* We cast to void * and then to TYPE * because this avoids + a warning about increasing the alignment requirement. */ +#define __VA_FP_REGSAVE(AP,OFS,TYPE) \ + ((TYPE *) (void *) (&(((__va_regsave_t *) \ + (AP)->reg_save_area)->__fp_save[OFS]))) + +#define __VA_GP_REGSAVE(AP,OFS,TYPE) \ + ((TYPE *) (void *) (&(((__va_regsave_t *) \ + (AP)->reg_save_area)->__gp_save[OFS]))) + +#define __va_start_common(AP, FAKE) \ + __builtin_memcpy ((AP), __builtin_saveregs (), sizeof(va_list)) + +#define va_start(AP,LASTARG) \ + (__builtin_next_arg (LASTARG), __va_start_common (AP, 0)) + +#ifdef _SOFT_FLOAT +#define __va_float_p(TYPE) 0 +#else +#define __va_float_p(TYPE) (__builtin_classify_type(*(TYPE *)0) == 8) +#endif + +#define __va_aggregate_p(TYPE) (__builtin_classify_type(*(TYPE *)0) >= 12) +#define __va_size(TYPE) ((sizeof(TYPE) + sizeof (long) - 1) / sizeof (long)) + +#define va_arg(AP,TYPE) \ +__extension__ (*({ \ + register TYPE *__ptr; \ + \ + if (__va_float_p (TYPE) && sizeof (TYPE) < 16) \ + { \ + unsigned char __fpr = (AP)->fpr; \ + if (__fpr < 8) \ + { \ + __ptr = __VA_FP_REGSAVE (AP, __fpr, TYPE); \ + (AP)->fpr = __fpr + 1; \ + } \ + else if (sizeof (TYPE) == 8) \ + { \ + unsigned long __addr = (unsigned long) (__va_overflow (AP)); \ + __ptr = (TYPE *)((__addr + 7) & -8); \ + __va_overflow (AP) = (char *)(__ptr + 1); \ + } \ + else \ + { \ + /* float is promoted to double. */ \ + __va_arg_type_violation (); \ + } \ + } \ + \ + /* Aggregates and long doubles are passed by reference. */ \ + else if (__va_aggregate_p (TYPE) || __va_float_p (TYPE)) \ + { \ + unsigned char __gpr = (AP)->gpr; \ + if (__gpr < 8) \ + { \ + __ptr = * __VA_GP_REGSAVE (AP, __gpr, TYPE *); \ + (AP)->gpr = __gpr + 1; \ + } \ + else \ + { \ + TYPE **__pptr = (TYPE **) (__va_overflow (AP)); \ + __ptr = * __pptr; \ + __va_overflow (AP) = (char *) (__pptr + 1); \ + } \ + } \ + \ + /* Only integrals remaining. */ \ + else \ + { \ + /* longlong is aligned. */ \ + if (sizeof (TYPE) == 8) \ + { \ + unsigned char __gpr = (AP)->gpr; \ + if (__gpr < 7) \ + { \ + __gpr += __gpr & 1; \ + __ptr = __VA_GP_REGSAVE (AP, __gpr, TYPE); \ + (AP)->gpr = __gpr + 2; \ + } \ + else \ + { \ + unsigned long __addr = (unsigned long) (__va_overflow (AP)); \ + __ptr = (TYPE *)((__addr + 7) & -8); \ + (AP)->gpr = 8; \ + __va_overflow (AP) = (char *)(__ptr + 1); \ + } \ + } \ + else if (sizeof (TYPE) == 4) \ + { \ + unsigned char __gpr = (AP)->gpr; \ + if (__gpr < 8) \ + { \ + __ptr = __VA_GP_REGSAVE (AP, __gpr, TYPE); \ + (AP)->gpr = __gpr + 1; \ + } \ + else \ + { \ + __ptr = (TYPE *) __va_overflow (AP); \ + __va_overflow (AP) = (char *)(__ptr + 1); \ + } \ + } \ + else \ + { \ + /* Everything else was promoted to int. */ \ + __va_arg_type_violation (); \ + } \ + } \ + __ptr; \ +})) + +#define va_end(AP) ((void)0) + +/* Copy va_list into another variable of this type. */ +#define __va_copy(dest, src) *(dest) = *(src) + +#elif defined(__alpha__) + +typedef struct { + char *__base; /* Pointer to first integer register. */ + int __offset; /* Byte offset of args so far. */ +} va_list; + +#define va_start(pvar, firstarg) \ + (__builtin_next_arg (firstarg), \ + (pvar) = *(va_list *) __builtin_saveregs ()) +#define va_end(__va) ((void) 0) + +#define __va_tsize(__type) \ + (((sizeof (__type) + __extension__ sizeof (long long) - 1) \ + / __extension__ sizeof (long long)) * __extension__ sizeof (long long)) + +#define va_arg(__va, __type) \ +(*(((__va).__offset += __va_tsize (__type)), \ + (__type *)(void *)((__va).__base + (__va).__offset \ + - (((__builtin_classify_type (* (__type *) 0) \ + == __real_type_class) && (__va).__offset <= (6 * 8)) \ + ? (6 * 8) + 8 : __va_tsize (__type))))) + +#else /* !__sparc__ && !__powerpc__ && !__mips__ && !__alpha__*/ + +typedef char* va_list; + +/* this only works when everything is passed on the stack (i.e. x86) */ +#if __WORDSIZE == 64 +#define va_start(ap,argn) ap=((char*)&argn)+8 +#else +#define va_start(ap,argn) ap=((char*)&argn)+4 +#endif +#define va_arg(ap,type) (ap+=sizeof(type), *(type*)((void*)ap-sizeof(type))) + +#endif + +#ifndef __va_copy +#define __va_copy(x,y) x=y +#endif + +#ifndef va_end +#define va_end(ap) ((void)0) +#endif + |