386BSD 0.1 development

Work on file usr/src/usr.bin/gcc/cc1/gvarargs.h

Co-Authored-By: Lynne Greer Jolitz <ljolitz@cardio.ucsf.edu>
Synthesized-from: 386BSD-0.1

diff --git a/usr/src/usr.bin/gcc/cc1/gvarargs.h b/usr/src/usr.bin/gcc/cc1/gvarargs.h
new file mode 100644 (file)
index 0000000..dc9c4ef
--- /dev/null
+++ b/usr/src/usr.bin/gcc/cc1/gvarargs.h
@@ -0,0 +1,68 @@
+#ifndef __GNUC__
+/* Use the system's macros with the system's compiler.  */
+#include <varargs.h>
+#else
+/* Record that varargs.h is defined; this turns off stdarg.h.  */
+
+#ifndef _VARARGS_H
+#define _VARARGS_H
+
+#ifdef __sparc__
+#include "va-sparc.h"
+#else
+#ifdef __spur__
+#include "va-spur.h"
+#else
+#ifdef __mips__
+#include "va-mips.h"
+#else
+#ifdef __i860__
+#include "va-i860.h"
+#else
+#ifdef __pyr__
+#include "va-pyr.h"
+#else
+
+#ifdef __NeXT__
+
+/* On Next, erase any vestiges of stdarg.h.  */
+
+#undef va_alist
+#undef va_dcl
+#undef va_list
+#undef va_start
+#undef va_end
+#undef __va_rounded_size
+#undef va_arg
+#endif  /* __NeXT__ */
+
+/* These macros implement traditional (non-ANSI) varargs
+   for GNU C.  */
+
+#define va_alist  __builtin_va_alist
+#define va_dcl    int __builtin_va_alist;
+#define va_list   char *
+
+#ifdef __sparc__
+#define va_start(AP)                                           \
+ (__builtin_saveregs (),                                       \
+  AP = ((void *) &__builtin_va_alist))
+#else
+#define va_start(AP)  AP=(char *) &__builtin_va_alist
+#endif
+#define va_end(AP)
+
+#define __va_rounded_size(TYPE)  \
+  (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
+
+#define va_arg(AP, TYPE)                                       \
+ (*((TYPE *) (AP += __va_rounded_size (TYPE),                  \
+             AP - __va_rounded_size (TYPE))))
+
+#endif /* not pyr */
+#endif /* not i860 */
+#endif /* not mips */
+#endif /* not spur */
+#endif /* not sparc */
+#endif /* not _VARARGS_H */
+#endif /* __GNUC__ */