New file.

From-SVN: r11484

gcc/ginclude/va-sh.h

+/* 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;
+
+#define __va_rounded_size(TYPE)  \
+  (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
+
+#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) 						\
+ (AP = ((__gnuc_va_list) __builtin_next_arg (LASTARG)))
+
+#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)
+
+/* 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.  */
+
+#ifdef __SH3E__
+
+#ifdef __LITTLE_ENDIAN__
+#warning SH3e little endian varargs/stdarg support has not been written yet.
+#endif
+
+#define va_arg(pvar,TYPE)					\
+__extension__							\
+(*({int __type = __builtin_classify_type (* (TYPE *) 0);	\
+  void * __result;						\
+  if (__type == __real_type_class && sizeof(TYPE) == 4)		\
+						/* float? */	\
+    {								\
+      __va_freg *__r;						\
+      if (pvar.__va_next_fp < pvar.__va_next_fp_limit)		\
+	__r = (__va_freg *) pvar.__va_next_fp++;		\
+      else							\
+	__r = (__va_freg *) pvar.__va_next_stack++;		\
+      __result = (char *) __r;					\
+    }								\
+  else								\
+    {								\
+      __va_greg *__r;						\
+      if (pvar.__va_next_o + ((sizeof (TYPE) + 3) / 4) <= pvar.__va_next_o_limit) 		\
+	{							\
+	  __r = (__va_greg *) pvar.__va_next_o;			\
+          pvar.__va_next_o += (sizeof (TYPE) + 3) / 4;		\
+	}							\
+      else							\
+	{							\
+          __r = (__va_greg *) pvar.__va_next_stack;             \
+          pvar.__va_next_stack += (sizeof (TYPE) + 3) / 4;	\
+	}							\
+      __result = (char *) __r;					\
+    } 								\
+  (TYPE *) __result;}))
+
+#else /* ! SH3E */
+
+#ifdef __LITTLE_ENDIAN__
+
+/* This is for little-endian machines; small args are padded upward.  */
+#define va_arg(AP, TYPE)						\
+ (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),	\
+  *((TYPE *) (void *) ((char *) (AP) - __va_rounded_size (TYPE))))
+
+#else /* ! __LITTLE_ENDIAN__ */
+
+/* This is for big-endian machines; small args are padded downward.  */
+#define va_arg(AP, TYPE)						\
+ (AP = (__gnuc_va_list) ((char *) (AP) + __va_rounded_size (TYPE)),	\
+  *((TYPE *) (void *) ((char *) (AP)					\
+		       - ((sizeof (TYPE) < __va_rounded_size (char)	\
+			   ? sizeof (TYPE) : __va_rounded_size (TYPE))))))
+
+#endif /* __LITTLE_ENDIAN__ */
+
+#endif /* SH3E */
+
+#endif /* defined (_STDARG_H) || defined (_VARARGS_H) */