[src/trunk]: src/sys/arch/alpha/include define 'struct boot_block' which is t...

[cgd <cgd%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/9a1f87630ce6
branches:  trunk
changeset: 471480:9a1f87630ce6
user:      cgd <cgd%NetBSD.org@localhost>
date:      Fri Apr 02 07:32:33 1999 +0000

description:
define 'struct boot_block' which is the alpha (SRM) boot block

diffstat:

 sys/arch/alpha/include/disklabel.h |  24 +++++++++++++++++++++---
 1 files changed, 21 insertions(+), 3 deletions(-)

diffs (45 lines):

diff -r 6240b3acd683 -r 9a1f87630ce6 sys/arch/alpha/include/disklabel.h
--- a/sys/arch/alpha/include/disklabel.h        Fri Apr 02 06:36:30 1999 +0000
+++ b/sys/arch/alpha/include/disklabel.h        Fri Apr 02 07:32:33 1999 +0000
@@ -1,7 +1,7 @@
-/* $NetBSD: disklabel.h,v 1.3 1997/04/06 08:47:22 cgd Exp $ */
+/* $NetBSD: disklabel.h,v 1.4 1999/04/02 07:32:33 cgd Exp $ */
 
 /*
- * Copyright (c) 1994 Christopher G. Demetriou
+ * Copyright (c) 1994, 1999 Christopher G. Demetriou
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -14,7 +14,8 @@
  *    documentation and/or other materials provided with the distribution.
  * 3. All advertising materials mentioning features or use of this software
  *    must display the following acknowledgement:
- *      This product includes software developed by Christopher G. Demetriou.
+ *      This product includes software developed by Christopher G. Demetriou
+ *      for the NetBSD Project.
  * 4. The name of the author may not be used to endorse or promote products
  *    derived from this software without specific prior written permission
  *
@@ -45,4 +46,21 @@
        struct dkbad bad;                       /* bad-sector information */
 };
 
+/*
+ * Alpha (disk, but also tape) Boot Block.  See Section (III) 3.6.1 of the
+ * Alpha Architecture Reference Manual.
+ */
+
+struct boot_block {
+       u_int64_t bb_pad[60];           /* disklabel lives in here */
+       u_int64_t bb_secsize;           /* secondary size (blocks) */
+       u_int64_t bb_secstart;          /* secondary start (blocks) */
+       u_int64_t bb_flags;             /* unknown; always zero */
+       u_int64_t bb_cksum;             /* checksum of the the boot block,
+                                        * taken as u_int64_t's
+                                        */
+};
+
+#define        BOOT_BLOCK_BLOCKSIZE    512     /* block size for sec. size/start */
+
 #endif /* _MACHINE_DISKLABEL_H_ */