blob: 746eea4a5f77b59e2dc040dee715f1837142009a (
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
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/*
* Copyright (C) 2012 Alejandro Mery <amery@geeks.cl>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _SUNXI_TOOLS_COMMON_H
#define _SUNXI_TOOLS_COMMON_H
#include <stddef.h> /* offsetof */
#include "version.h" /* auto-generated VERSION string */
/** flag function argument as unused */
#ifdef UNUSED
#elif defined(__GNUC__)
# define UNUSED(x) UNUSED_ ## x __attribute__((unused))
#else
# define UNUSED(x) UNUSED_ ## x
#endif
/** finds the parent of an struct member */
#ifndef container_of
#define container_of(P,T,M) (T *)((char *)(P) - offsetof(T, M))
#endif
/** calculate number of elements of an array */
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(A) (sizeof(A)/sizeof((A)[0]))
#endif
/** shortcut to "printf to stderr" */
#define pr_error(...) fprintf(stderr, __VA_ARGS__)
/** like pr_error(), but also exit program */
#define pr_fatal(...) \
do { pr_error(__VA_ARGS__); exit(EXIT_FAILURE); } while (0);
#endif /* _SUNXI_TOOLS_COMMON_H */
|
