UPSTREAM: commonlib/helpers: Add helper macro for member_size

member_size macro provides the size of a structure member.

BUG=none
BRANCH=none
TEST=none

Change-Id: I8758427d742045c018d49d928a9a8cb80f014eb0
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 10d1fde575
Original-Change-Id: I53e9c9bf70b3ebed0d15e8258111b17e50667a74
Original-Signed-off-by: Furquan Shaikh <furquan@chromium.org>
Original-Reviewed-on: https://review.coreboot.org/19384
Original-Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Original-Tested-by: build bot (Jenkins)
Original-Reviewed-by: Philippe Mathieu-Daud <philippe.mathieu.daude@gmail.com>
Original-Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: https://chromium-review.googlesource.com/486754
This commit is contained in:
Furquan Shaikh 2017-04-19 19:25:52 -07:00 committed by chrome-bot
parent 9b57633130
commit c19decc23c

View file

@ -85,6 +85,9 @@
const __typeof__(((type *)0)->member) *__mptr = (ptr); \ const __typeof__(((type *)0)->member) *__mptr = (ptr); \
(type *)((char *)__mptr - offsetof(type, member)); }) (type *)((char *)__mptr - offsetof(type, member)); })
/* Calculate size of structure member. */
#define member_size(type, member) (sizeof(((type *)0)->member))
#ifndef __unused #ifndef __unused
#define __unused __attribute__((unused)) #define __unused __attribute__((unused))
#endif #endif