From: Petr Beneš <w1be...@gmail.com>
* `sizeof_field` returns the size of a specific struct member
* `offsetof_end` returns the offset to the end of the member within the struct
It will be useful in upcoming layout checks of SMBIOS structs.
Signed-off-by: Petr Beneš <w1be...@gmail.com>
---
tools/include/xen-tools/common-macros.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/tools/include/xen-tools/common-macros.h
b/tools/include/xen-tools/common-macros.h
index 0088208c2e..3899e06753 100644
--- a/tools/include/xen-tools/common-macros.h
+++ b/tools/include/xen-tools/common-macros.h
@@ -83,6 +83,11 @@
#define __packed __attribute__((__packed__))
#endif
+#define sizeof_field(type, member) sizeof(((type *)NULL)->member)
+
+#define offsetof_end(type, member) \
+ (offsetof(type, member) + sizeof_field(type, member))
+
#define container_of(ptr, type, member) ({ \
typeof(((type *)0)->member) *mptr__ = (ptr); \
(type *)((char *)mptr__ - offsetof(type, member)); \
--
2.34.1
