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authorAndrew Bresticker <abrestic@chromium.org>2015-02-05 13:27:59 -0800
committerPatrick Georgi <pgeorgi@google.com>2015-03-20 10:01:22 +0100
commit19fd0b09eeade2b013f229d726e124fa7eb840f0 (patch)
tree2ad8a89b64d17a73d5b0691169f02bbd0e5aa3dc
parent8dd4f98222405b01188c5f80eb08ac97172f58e4 (diff)
downloadcoreboot-19fd0b09eeade2b013f229d726e124fa7eb840f0.tar.xz
stdlib: Add IS_ALIGNED macro
Add a macro to check if a value is aligned. BUG=chrome-os-partner:36258 BRANCH=none TEST=Build and boot on Pistachio. Change-Id: I0680954eb1b1964a631527f96aa0570a32944fa1 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Original-Commit-Id: 4f1717648e0a4b54217d71f8d0a15d496737d156 Original-Change-Id: Ie0bc1374918a7ffaaec5fea62c1193a42edd416c Original-Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Original-Reviewed-on: https://chromium-review.googlesource.com/246692 Original-Reviewed-by: Julius Werner <jwerner@chromium.org> Reviewed-on: http://review.coreboot.org/8757 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@google.com> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
-rw-r--r--src/include/stdlib.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/include/stdlib.h b/src/include/stdlib.h
index 2fc6805c73..35e8b3229a 100644
--- a/src/include/stdlib.h
+++ b/src/include/stdlib.h
@@ -9,6 +9,7 @@
#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask))
#define ALIGN_UP(x,a) ALIGN((x),(a))
#define ALIGN_DOWN(x,a) ((x) & ~((typeof(x))(a)-1UL))
+#define IS_ALIGNED(x,a) (((x) & ((typeof(x))(a)-1UL)) == 0)
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#define MAX(a,b) ((a) > (b) ? (a) : (b))