231 lines
6.6 KiB
C
231 lines
6.6 KiB
C
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/* The ! __SH3E_VARG case is similar to the default gvarargs.h . */
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#if (defined (__SH3E__) || defined (__SH4_SINGLE__) || defined (__SH4__) || defined (__SH4_SINGLE_ONLY__)) && ! defined (__HITACHI__)
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#define __SH3E_VARG
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#endif
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/* Define __gnuc_va_list. */
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#ifndef __GNUC_VA_LIST
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#define __GNUC_VA_LIST
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#ifdef __SH3E_VARG
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typedef long __va_greg;
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typedef float __va_freg;
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typedef struct {
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__va_greg * __va_next_o; /* next available register */
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__va_greg * __va_next_o_limit; /* past last available register */
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__va_freg * __va_next_fp; /* next available fp register */
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__va_freg * __va_next_fp_limit; /* last available fp register */
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__va_greg * __va_next_stack; /* next extended word on stack */
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} __gnuc_va_list;
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#else /* ! SH3E */
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typedef void *__gnuc_va_list;
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#endif /* ! SH3E */
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#endif /* __GNUC_VA_LIST */
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/* If this is for internal libc use, don't define anything but
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__gnuc_va_list. */
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#if defined (_STDARG_H) || defined (_VARARGS_H)
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#ifdef _STDARG_H
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#ifdef __SH3E_VARG
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#define va_start(AP, LASTARG) \
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__extension__ \
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({ \
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(AP).__va_next_fp = (__va_freg *) __builtin_saveregs (); \
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(AP).__va_next_fp_limit = ((AP).__va_next_fp + \
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(__builtin_args_info (1) < 8 ? 8 - __builtin_args_info (1) : 0)); \
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(AP).__va_next_o = (__va_greg *) (AP).__va_next_fp_limit; \
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(AP).__va_next_o_limit = ((AP).__va_next_o + \
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(__builtin_args_info (0) < 4 ? 4 - __builtin_args_info (0) : 0)); \
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(AP).__va_next_stack = (__va_greg *) __builtin_next_arg (LASTARG); \
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})
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#else /* ! SH3E */
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#define va_start(AP, LASTARG) \
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((AP) = ((__gnuc_va_list) __builtin_next_arg (LASTARG)))
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#endif /* ! SH3E */
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#else /* _VARARGS_H */
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#define va_alist __builtin_va_alist
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#define va_dcl int __builtin_va_alist;...
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#ifdef __SH3E_VARG
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#define va_start(AP) \
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__extension__ \
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({ \
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(AP).__va_next_fp = (__va_freg *) __builtin_saveregs (); \
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(AP).__va_next_fp_limit = ((AP).__va_next_fp + \
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(__builtin_args_info (1) < 8 ? 8 - __builtin_args_info (1) : 0)); \
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(AP).__va_next_o = (__va_greg *) (AP).__va_next_fp_limit; \
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(AP).__va_next_o_limit = ((AP).__va_next_o + \
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(__builtin_args_info (0) < 4 ? 4 - __builtin_args_info (0) : 0)); \
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(AP).__va_next_stack \
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= ((__va_greg *) __builtin_next_arg (__builtin_va_alist) \
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- (__builtin_args_info (0) >= 4 || __builtin_args_info (1) >= 8 \
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? 1 : 0)); \
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})
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#else /* ! SH3E */
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#define va_start(AP) ((AP) = (char *) &__builtin_va_alist)
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#endif /* ! SH3E */
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#endif /* _STDARG */
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#ifndef va_end
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void va_end (__gnuc_va_list); /* Defined in libgcc.a */
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/* Values returned by __builtin_classify_type. */
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enum __va_type_classes {
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__no_type_class = -1,
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__void_type_class,
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__integer_type_class,
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__char_type_class,
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__enumeral_type_class,
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__boolean_type_class,
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__pointer_type_class,
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__reference_type_class,
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__offset_type_class,
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__real_type_class,
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__complex_type_class,
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__function_type_class,
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__method_type_class,
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__record_type_class,
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__union_type_class,
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__array_type_class,
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__string_type_class,
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__set_type_class,
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__file_type_class,
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__lang_type_class
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};
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#endif
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#define va_end(pvar) ((void)0)
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#ifdef __LITTLE_ENDIAN__
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#define __LITTLE_ENDIAN_P 1
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#else
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#define __LITTLE_ENDIAN_P 0
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#endif
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#define __SCALAR_TYPE(TYPE) \
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((TYPE) == __integer_type_class \
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|| (TYPE) == __char_type_class \
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|| (TYPE) == __enumeral_type_class)
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/* RECORD_TYPE args passed using the C calling convention are
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passed by invisible reference. ??? RECORD_TYPE args passed
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in the stack are made to be word-aligned; for an aggregate that is
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not word-aligned, we advance the pointer to the first non-reg slot. */
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/* When this is a smaller-than-int integer, using
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auto-increment in the promoted (SImode) is fastest;
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however, there is no way to express that is C. Therefore,
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we use an asm.
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We want the MEM_IN_STRUCT_P bit set in the emitted RTL, therefore we
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use unions even when it would otherwise be unnecessary. */
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/* gcc has an extension that allows to use a casted lvalue as an lvalue,
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But it doesn't work in C++ with -pedantic - even in the presence of
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__extension__ . We work around this problem by using a reference type. */
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#ifdef __cplusplus
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#define __VA_REF &
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#else
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#define __VA_REF
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#endif
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#define __va_arg_sh1(AP, TYPE) __extension__ \
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({(sizeof (TYPE) == 1 \
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? ({union {TYPE t; char c;} __t; \
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__asm("" \
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: "=r" (__t.c) \
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: "0" ((((union { int i, j; } *__VA_REF) (AP))++)->i)); \
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__t.t;}) \
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: sizeof (TYPE) == 2 \
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? ({union {TYPE t; short s;} __t; \
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__asm("" \
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: "=r" (__t.s) \
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: "0" ((((union { int i, j; } *__VA_REF) (AP))++)->i)); \
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__t.t;}) \
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: sizeof (TYPE) >= 4 || __LITTLE_ENDIAN_P \
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? (((union { TYPE t; int i;} *__VA_REF) (AP))++)->t \
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: ((union {TYPE t;TYPE u;}*) ((char *)++(int *__VA_REF)(AP) - sizeof (TYPE)))->t);})
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#ifdef __SH3E_VARG
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#define __PASS_AS_FLOAT(TYPE_CLASS,SIZE) \
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(TYPE_CLASS == __real_type_class && SIZE == 4)
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#define __TARGET_SH4_P 0
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#if defined(__SH4__) || defined(__SH4_SINGLE__)
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#undef __PASS_AS_FLOAT
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#define __PASS_AS_FLOAT(TYPE_CLASS,SIZE) \
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((TYPE_CLASS == __real_type_class && SIZE <= 8) \
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|| (TYPE_CLASS == __complex_type_class && SIZE <= 16))
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#undef __TARGET_SH4_P
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#define __TARGET_SH4_P 1
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#endif
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#define va_arg(pvar,TYPE) \
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__extension__ \
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({int __type = __builtin_classify_type (* (TYPE *) 0); \
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void * __result_p; \
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if (__PASS_AS_FLOAT (__type, sizeof(TYPE))) \
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{ \
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if ((pvar).__va_next_fp < (pvar).__va_next_fp_limit) \
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{ \
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if (((__type == __real_type_class && sizeof (TYPE) > 4)\
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|| sizeof (TYPE) > 8) \
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&& (((int) (pvar).__va_next_fp ^ (int) (pvar).__va_next_fp_limit)\
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& 4)) \
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(pvar).__va_next_fp++; \
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__result_p = &(pvar).__va_next_fp; \
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} \
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else \
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__result_p = &(pvar).__va_next_stack; \
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} \
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else \
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{ \
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if ((pvar).__va_next_o + ((sizeof (TYPE) + 3) / 4) \
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<= (pvar).__va_next_o_limit) \
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__result_p = &(pvar).__va_next_o; \
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else \
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{ \
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if (sizeof (TYPE) > 4) \
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if (! __TARGET_SH4_P) \
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(pvar).__va_next_o = (pvar).__va_next_o_limit; \
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\
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__result_p = &(pvar).__va_next_stack; \
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} \
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} \
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__va_arg_sh1(*(void **)__result_p, TYPE);})
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#else /* ! SH3E */
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#define va_arg(AP, TYPE) __va_arg_sh1((AP), TYPE)
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#endif /* SH3E */
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/* Copy __gnuc_va_list into another variable of this type. */
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#define __va_copy(dest, src) ((dest) = (src))
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#endif /* defined (_STDARG_H) || defined (_VARARGS_H) */
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