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authorFurquan Shaikh <furquan@chromium.org>2017-04-19 19:25:52 -0700
committerMartin Roth <martinroth@google.com>2017-04-24 19:27:35 +0200
commit10d1fde5756d9535b2301806c01d0b029661eddc (patch)
tree88bc97dc2dcf2bcbed70aeabb62163469b4664f8 /src/commonlib
parent4d74836488ac1deb32da0abe0a887cfbe1c33ba4 (diff)
downloadcoreboot-10d1fde5756d9535b2301806c01d0b029661eddc.tar.xz
commonlib/helpers: Add helper macro for member_size
member_size macro provides the size of a structure member. Change-Id: I53e9c9bf70b3ebed0d15e8258111b17e50667a74 Signed-off-by: Furquan Shaikh <furquan@chromium.org> Reviewed-on: https://review.coreboot.org/19384 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins) Reviewed-by: Philippe Mathieu-Daudé <philippe.mathieu.daude@gmail.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/commonlib')
-rw-r--r--src/commonlib/include/commonlib/helpers.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/helpers.h b/src/commonlib/include/commonlib/helpers.h
index d2ef94196d..0a796ba85b 100644
--- a/src/commonlib/include/commonlib/helpers.h
+++ b/src/commonlib/include/commonlib/helpers.h
@@ -85,6 +85,9 @@
const __typeof__(((type *)0)->member) *__mptr = (ptr); \
(type *)((char *)__mptr - offsetof(type, member)); })
+/* Calculate size of structure member. */
+#define member_size(type, member) (sizeof(((type *)0)->member))
+
#ifndef __unused
#define __unused __attribute__((unused))
#endif