From fd8706be29972742fc5cebd41ded932441faa0df Mon Sep 17 00:00:00 2001
From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Thu, 30 May 2002 06:33:07 +0000
Subject: [PATCH] Add compile time asserts for the size of struct gpt_hdr and
 struct gpt_ent. Use offsetof() for struct gpt_hdr to exclude padding.

---
 sys/geom/geom_gpt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/geom/geom_gpt.c b/sys/geom/geom_gpt.c
index a127ed0d6bb7..568420dbbaa1 100644
--- a/sys/geom/geom_gpt.c
+++ b/sys/geom/geom_gpt.c
@@ -57,6 +57,9 @@
 #include <geom/geom.h>
 #include <geom/geom_slice.h>
 
+CTASSERT(offsetof(struct gpt_hdr, padding) == 92);
+CTASSERT(sizeof(struct gpt_ent) == 128);
+
 /*
  * XXX: GEOM is not dynamic enough. We are forced to use a compile-time
  * limit. The minimum number of partitions (128) as required by EFI is