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gcc.gnu.org Git - gcc.git/blob - gcc/ginclude/va-sparc.h
1 /* This is just like the default gvarargs.h
2 except for differences described below. */
4 /* Define __gnuc_va_list. */
10 /* This has to be a char * to be compatible with Sun.
11 i.e., we have to pass a `va_list' to vsprintf. */
12 typedef char * __gnuc_va_list
;
14 /* This has to be a void * to be compatible with Sun svr4.
15 i.e., we have to pass a `va_list' to vsprintf. */
16 typedef void * __gnuc_va_list
;
18 #endif /* not __GNUC_VA_LIST */
20 /* If this is for internal libc use, don't define anything but
22 #if defined (_STDARG_H) || defined (_VARARGS_H)
26 #ifdef __GCC_NEW_VARARGS__
27 #define va_start(AP, LASTARG) (AP = (char *) __builtin_saveregs ())
29 #define va_start(AP, LASTARG) \
30 (__builtin_saveregs (), AP = ((char *) __builtin_next_arg ()))
35 #define va_alist __builtin_va_alist
38 #ifdef __GCC_NEW_VARARGS__
39 #define va_start(AP) ((AP) = (char *) __builtin_saveregs ())
41 #define va_start(AP) \
42 (__builtin_saveregs (), (AP) = ((char *) &__builtin_va_alist))
48 void va_end (__gnuc_va_list
); /* Defined in libgcc.a */
52 #define __va_rounded_size(TYPE) \
53 (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
55 /* Avoid errors if compiling GCC v2 with GCC v1. */
60 /* RECORD_TYPE args passed using the C calling convention are
61 passed by invisible reference. ??? RECORD_TYPE args passed
62 in the stack are made to be word-aligned; for an aggregate that is
63 not word-aligned, we advance the pointer to the first non-reg slot. */
64 /* We don't declare the union member `d' to have type TYPE
65 because that would lose in C++ if TYPE has a constructor. */
66 /* We cast to void * and then to TYPE * because this avoids
67 a warning about increasing the alignment requirement. */
68 #define va_arg(pvar,TYPE) \
71 ((__builtin_classify_type (__va_temp) >= 12) \
72 ? ((pvar) += __va_rounded_size (TYPE *), \
73 **(TYPE **) (void *) ((pvar) - __va_rounded_size (TYPE *))) \
74 : __va_rounded_size (TYPE) == 8 \
75 ? ({ union {char __d[sizeof (TYPE)]; int __i[2];} __u; \
76 __u.__i[0] = ((int *) (void *) (pvar))[0]; \
77 __u.__i[1] = ((int *) (void *) (pvar))[1]; \
79 *(TYPE *) (void *) __u.__d; }) \
80 : ((pvar) += __va_rounded_size (TYPE), \
81 *((TYPE *) (void *) ((pvar) - __va_rounded_size (TYPE)))));})
83 #endif /* defined (_STDARG_H) || defined (_VARARGS_H) */
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