diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2013-03-28 16:17:11 -0500 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2013-03-29 19:54:47 +0100 |
| commit | 3ece5ac40c66c78b4abce74eeec6521ad661c53c (patch) | |
| tree | 79d51d1479584789f6c6bcb0ed355ec86af96f50 /src/include | |
| parent | 4fa5fa5088503ff5c168b4fb8d548dd90034d29e (diff) | |
stdlib: add ALIGN_UP and ALIGN_DOWN macros
There wasn't an equivalent to align down so add ALIGN_DOWN.
For symmetry provide an ALIGN_UP macro as well.
Change-Id: I7033109311eeb15c8c69c649878785378790feb9
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/2951
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/stdlib.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/include/stdlib.h b/src/include/stdlib.h index 83eb966b25..cb5a6ca703 100644 --- a/src/include/stdlib.h +++ b/src/include/stdlib.h @@ -7,6 +7,8 @@ #define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1UL) #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 MIN(a,b) ((a) < (b) ? (a) : (b)) #define MAX(a,b) ((a) > (b) ? (a) : (b)) |