1/*
2 * Copyright 2019, Data61
3 * Commonwealth Scientific and Industrial Research Organisation (CSIRO)
4 * ABN 41 687 119 230.
5 *
6 * This software may be distributed and modified according to the terms of
7 * the BSD 2-Clause license. Note that NO WARRANTY is provided.
8 * See "LICENSE_BSD2.txt" for details.
9 *
10 * @TAG(DATA61_BSD)
11 */
12#include <sel4runtime/stddef.h>
13#include <sel4runtime/stdint.h>
14
15#define ALIGN_UP(x, n) (((x) + (n) - 1) & ~((n) - 1))
16#define ALIGN_DOWN(x, n) ((x) & ~((n) - 1))
17
18#define ROUND_DOWN(n, b) \
19    ({ typeof (n) _n = (n); \
20       typeof (b) _b = (b); \
21       _n - (_n % _b); \
22    })
23
24#define ROUND_UP(n, b) \
25    ({ typeof (n) _n = (n); \
26       typeof (b) _b = (b); \
27       (_n + (_n % _b == 0 ? 0 : (_b - (_n % _b)))); \
28    })
29
30/*
31 * We have our own copies of memset and memcpy to avoid conflicts and
32 * dependencies on libc.
33 */
34
35void *__sel4runtime_memcpy(
36    void *restrict dest,
37    const void *restrict src,
38    sel4runtime_size_t n
39);
40void *__sel4runtime_memset(void *dest, int c, sel4runtime_size_t n);
41