xnu-792.tar.gz

[apple/xnu.git] / EXTERNAL_HEADERS / architecture / ppc / cframe.h

diff --git a/EXTERNAL_HEADERS/architecture/ppc/cframe.h b/EXTERNAL_HEADERS/architecture/ppc/cframe.h
index 80a08ab6c0910a5e38225f1cf32294c786633112..3dc63034ce1b5b68bd4ceb91572f77fffafb7ce6 100644 (file)
--- a/EXTERNAL_HEADERS/architecture/ppc/cframe.h
+++ b/EXTERNAL_HEADERS/architecture/ppc/cframe.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2004 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_LICENSE_HEADER_START@
  * 
@@ -26,21 +26,19 @@
  *
  *     This include file defines C calling sequence defines
  *     for ppc port.
- *
- * HISTORY
- * 20-May-97  Umesh Vaishampayan  (umeshv@apple.com)
- *     Added C_RED_ZONE.
- * 29-Dec-96  Umesh Vaishampayan  (umeshv@NeXT.com)
- *     Ported from m98k.
- * 11-June-91  Mike DeMoney (mike@next.com)
- *     Created.
  */
 
 #ifndef        _ARCH_PPC_CFRAME_H_
 #define        _ARCH_PPC_CFRAME_H_
 
+#if defined (__ppc64__)
+#define        C_ARGSAVE_LEN   64      /* at least 64 bytes of arg save */
+#define        C_STACK_ALIGN   32      /* stack must be 32 byte aligned */
+#define        C_RED_ZONE      320     /* 320 bytes to skip over saved registers */
+#else
 #define        C_ARGSAVE_LEN   32      /* at least 32 bytes of arg save */
 #define        C_STACK_ALIGN   16      /* stack must be 16 byte aligned */
-#define        C_RED_ZONE      244     /* 224 bytes to skip over saved registers */
+#define        C_RED_ZONE      224     /* 224 bytes to skip over saved registers */
+#endif
 
 #endif /* _ARCH_PPC_CFRAME_H_ */