summaryrefslogtreecommitdiff
path: root/mm/include/alignment.h
blob: 06d86ec7ca6a6bd94cdc2bc1b5c0dc19fb99b09b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#ifndef ALIGNMENT_H
#define ALIGNMENT_H

#include "attributes.h"

#define ALIGN8(val) (((val) + 7) & ~7)
#define ALIGN16(val) (((val) + 0xF) & ~0xF)
#define ALIGN32(val) (((val) + 0x1F) & ~0x1F)
#define ALIGN64(val) (((val) + 0x3F) & ~0x3F)
#define ALIGN256(val) (((val) + 0xFF) & ~0xFF)

#ifndef ALIGNED
#define ALIGNED(x) __attribute__ ((aligned (x)))
#endif

// 2S2H [Port] There was a macro for `UNALIGNED` here. We don't need it for PC and any file that does can include the proper header

#ifdef __sgi /* IDO compiler */
#define ALIGNOF(x) __builtin_alignof(x)
#elif (__STDC_VERSION__ >= 201112L) /* C11 */
#define ALIGNOF(x) _Alignof(x)
#else /* __GNUC__ */
#define ALIGNOF(x) __alignof__(x)
#endif

#define ALIGN_MASK(n) (~((n) - 1))

#define ALIGNOF_MASK(x) ALIGN_MASK(ALIGNOF(x))

#endif