projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 2e6c90f3 WJ |
1 | #ifndef __GNUC__ |
| 2 | /* Use the system's macros with the system's compiler. */ | |
| 3 | #include <varargs.h> | |
| 4 | #else | |
| 5 | /* Record that varargs.h is defined; this turns off stdarg.h. */ | |
| 6 | ||
| 7 | #ifndef _VARARGS_H | |
| 8 | #define _VARARGS_H | |
| 9 | ||
| 10 | #ifdef __sparc__ | |
| 11 | #include "va-sparc.h" | |
| 12 | #else | |
| 13 | #ifdef __spur__ | |
| 14 | #include "va-spur.h" | |
| 15 | #else | |
| 16 | #ifdef __mips__ | |
| 17 | #include "va-mips.h" | |
| 18 | #else | |
| 19 | #ifdef __i860__ | |
| 20 | #include "va-i860.h" | |
| 21 | #else | |
| 22 | #ifdef __pyr__ | |
| 23 | #include "va-pyr.h" | |
| 24 | #else | |
| 25 | ||
| 26 | #ifdef __NeXT__ | |
| 27 | ||
| 28 | /* On Next, erase any vestiges of stdarg.h. */ | |
| 29 | ||
| 30 | #undef va_alist | |
| 31 | #undef va_dcl | |
| 32 | #undef va_list | |
| 33 | #undef va_start | |
| 34 | #undef va_end | |
| 35 | #undef __va_rounded_size | |
| 36 | #undef va_arg | |
| 37 | #endif /* __NeXT__ */ | |
| 38 | ||
| 39 | /* These macros implement traditional (non-ANSI) varargs | |
| 40 | for GNU C. */ | |
| 41 | ||
| 42 | #define va_alist __builtin_va_alist | |
| 43 | #define va_dcl int __builtin_va_alist; | |
| 44 | #define va_list char * | |
| 45 | ||
| 46 | #ifdef __sparc__ | |
| 47 | #define va_start(AP) \ | |
| 48 | (__builtin_saveregs (), \ | |
| 49 | AP = ((void *) &__builtin_va_alist)) | |
| 50 | #else | |
| 51 | #define va_start(AP) AP=(char *) &__builtin_va_alist | |
| 52 | #endif | |
| 53 | #define va_end(AP) | |
| 54 | ||
| 55 | #define __va_rounded_size(TYPE) \ | |
| 56 | (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int)) | |
| 57 | ||
| 58 | #define va_arg(AP, TYPE) \ | |
| 59 | (*((TYPE *) (AP += __va_rounded_size (TYPE), \ | |
| 60 | AP - __va_rounded_size (TYPE)))) | |
| 61 | ||
| 62 | #endif /* not pyr */ | |
| 63 | #endif /* not i860 */ | |
| 64 | #endif /* not mips */ | |
| 65 | #endif /* not spur */ | |
| 66 | #endif /* not sparc */ | |
| 67 | #endif /* not _VARARGS_H */ | |
| 68 | #endif /* __GNUC__ */ |