diff options
Diffstat (limited to 'include/va-sh.h')
| -rw-r--r-- | include/va-sh.h | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/include/va-sh.h b/include/va-sh.h new file mode 100644 index 000000000..d891c171f --- /dev/null +++ b/include/va-sh.h @@ -0,0 +1,202 @@ +/* This is just like the default gvarargs.h + except for differences described below. */ + +/* Define __gnuc_va_list. */ + +#ifndef __GNUC_VA_LIST +#define __GNUC_VA_LIST + +#ifdef __SH3E__ + +typedef long __va_greg; +typedef double __va_freg; + +typedef struct { + __va_greg * __va_next_o; /* next available register */ + __va_greg * __va_next_o_limit; /* past last available register */ + __va_freg * __va_next_fp; /* next available fp register */ + __va_freg * __va_next_fp_limit; /* last available fp register */ + __va_greg * __va_next_stack; /* next extended word on stack */ +} __gnuc_va_list; + +#else /* ! SH3E */ + +typedef void *__gnuc_va_list; + +#endif /* ! SH3E */ + +#endif /* __GNUC_VA_LIST */ + +/* If this is for internal libc use, don't define anything but + __gnuc_va_list. */ +#if defined (_STDARG_H) || defined (_VARARGS_H) + +#ifdef _STDARG_H + +#ifdef __SH3E__ + +#define va_start(AP, LASTARG) \ +__extension__ \ + ({ \ + AP.__va_next_fp = (__va_freg *) __builtin_saveregs (); \ + AP.__va_next_fp_limit = (AP.__va_next_fp + \ + (__builtin_args_info (1) < 8 ? 8 - __builtin_args_info (1) : 0)); \ + AP.__va_next_o = (__va_greg *) AP.__va_next_fp_limit; \ + AP.__va_next_o_limit = (AP.__va_next_o + \ + (__builtin_args_info (0) < 4 ? 4 - __builtin_args_info (0) : 0)); \ + AP.__va_next_stack = (__va_greg *) __builtin_next_arg (LASTARG); \ + }) + +#else /* ! SH3E */ + +#define va_start(AP, LASTARG) \ +do { \ + __builtin_saveregs();\ + (AP = ((__gnuc_va_list) __builtin_next_arg (LASTARG))); \ +} while (0) + +#endif /* ! SH3E */ + +#else /* _VARARGS_H */ + +#define va_alist __builtin_va_alist +#define va_dcl int __builtin_va_alist;... + +#ifdef __SH3E__ + +#define va_start(AP) \ +__extension__ \ + ({ \ + AP.__va_next_fp = (__va_freg *) __builtin_saveregs (); \ + AP.__va_next_fp_limit = (AP.__va_next_fp + \ + (__builtin_args_info (1) < 8 ? 8 - __builtin_args_info (1) : 0)); \ + AP.__va_next_o = (__va_greg *) AP.__va_next_fp_limit; \ + AP.__va_next_o_limit = (AP.__va_next_o + \ + (__builtin_args_info (0) < 4 ? 4 - __builtin_args_info (0) : 0)); \ + AP.__va_next_stack = (__va_greg *) __builtin_next_arg (__builtin_va_alist) \ + - (__builtin_args_info (0) >= 4 || __builtin_args_info (1) >= 8 ? 1 : 0); \ + }) + +#else /* ! SH3E */ + +#define va_start(AP) AP=(char *) &__builtin_va_alist + +#endif /* ! SH3E */ + +#endif /* _STDARG */ + +#ifndef va_end +void va_end (__gnuc_va_list); /* Defined in libgcc.a */ + +/* Values returned by __builtin_classify_type. */ + +enum __va_type_classes { + __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 +#define va_end(pvar) ((void)0) + +#ifdef __LITTLE_ENDIAN__ +#define __LITTLE_ENDIAN_P 1 +#else +#define __LITTLE_ENDIAN_P 0 +#endif + +#define __SCALAR_TYPE(TYPE) \ + ((TYPE) == __integer_type_class \ + || (TYPE) == __char_type_class \ + || (TYPE) == __enumeral_type_class) + +/* RECORD_TYPE args passed using the C calling convention are + passed by invisible reference. ??? RECORD_TYPE args passed + in the stack are made to be word-aligned; for an aggregate that is + not word-aligned, we advance the pointer to the first non-reg slot. */ + + /* When this is a smaller-than-int integer, using + auto-increment in the promoted (SImode) is fastest; + however, there is no way to express that is C. Therefore, + we use an asm. + We want the MEM_IN_STRUCT_P bit set in the emitted RTL, therefore we + use unions even when it would otherwise be unnecessary. */ + +#define __va_arg_sh1(AP, TYPE) __extension__ \ +__extension__ \ +({(sizeof (TYPE) == 1 \ + ? ({union {TYPE t; char c;} __t; \ + __asm("" \ + : "=r" (__t.c) \ + : "0" ((((union { int i, j; } *) (AP))++)->i)); \ + __t.t;}) \ + : sizeof (TYPE) == 2 \ + ? ({union {TYPE t; short s;} __t; \ + __asm("" \ + : "=r" (__t.s) \ + : "0" ((((union { int i, j; } *) (AP))++)->i)); \ + __t.t;}) \ + : sizeof (TYPE) >= 4 || __LITTLE_ENDIAN_P \ + ? (((union { TYPE t; int i;} *) (AP))++)->t \ + : ((union {TYPE t;TYPE u;}*) ((char *)++(int *)(AP) - sizeof (TYPE)))->t);}) + +#ifdef __SH3E__ + +#define __PASS_AS_FLOAT(TYPE_CLASS,SIZE) \ + (TYPE_CLASS == __real_type_class && SIZE == 4) + +#define va_arg(pvar,TYPE) \ +__extension__ \ +({int __type = __builtin_classify_type (* (TYPE *) 0); \ + void * __result_p; \ + if (__PASS_AS_FLOAT (__type, sizeof(TYPE))) \ + { \ + if (pvar.__va_next_fp < pvar.__va_next_fp_limit) \ + { \ + __result_p = &pvar.__va_next_fp; \ + } \ + else \ + __result_p = &pvar.__va_next_stack; \ + } \ + else \ + { \ + if (pvar.__va_next_o + ((sizeof (TYPE) + 3) / 4) \ + <= pvar.__va_next_o_limit) \ + __result_p = &pvar.__va_next_o; \ + else \ + { \ + if (sizeof (TYPE) > 4) \ + pvar.__va_next_o = pvar.__va_next_o_limit; \ + \ + __result_p = &pvar.__va_next_stack; \ + } \ + } \ + __va_arg_sh1(*(void **)__result_p, TYPE);}) + +#else /* ! SH3E */ + +#define va_arg(AP, TYPE) __va_arg_sh1((AP), TYPE) + +#endif /* SH3E */ + +/* Copy __gnuc_va_list into another variable of this type. */ +#define __va_copy(dest, src) (dest) = (src) + +#endif /* defined (_STDARG_H) || defined (_VARARGS_H) */ |