From: Marc-André Lureau <marcandre.lureau@redhat.com>
Date: Fri, 10 Jan 2020 15:30:14 +0000 (+0400)
Subject: object: add extra sanity checks
X-Git-Tag: v5.0.0-rc0~125^2~27
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=d5e633fc978bad2266c9b25f55bead7415eb491d;p=thirdparty%2Fqemu.git

object: add extra sanity checks

Type system checked that children class_size >= parent class_size, but
not instances. Fix that.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200110153039.1379601-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/qom/object.c b/qom/object.c
index 90155faec14..dcb686348b0 100644
--- a/qom/object.c
+++ b/qom/object.c
@@ -307,6 +307,7 @@ static void type_initialize(TypeImpl *ti)
         int i;
 
         g_assert(parent->class_size <= ti->class_size);
+        g_assert(parent->instance_size <= ti->instance_size);
         memcpy(ti->class, parent->class, parent->class_size);
         ti->class->interfaces = NULL;
         ti->class->properties = g_hash_table_new_full(