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
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
#ifndef _LINUX_INIT_H
#define _LINUX_INIT_H
/* These macros are used to mark some functions or
* initialized data (doesn't apply to uninitialized data)
* as `initialization' functions. The kernel can take this
* as hint that the function is used only during the initialization
* phase and free up used memory resources after
*
* Usage:
* For functions:
*
* You should add __init immediately before the function name, like:
*
* static void __init initme(int x, int y)
* {
* extern int z; z = x * y;
* }
*
* Depricated: you can surround the whole function declaration
* just before function body into __initfunc() macro, like:
*
* __initfunc (static void initme(int x, int y))
* {
* extern int z; z = x * y;
* }
*
* If the function has a prototype somewhere, you can also add
* __init between closing brace of the prototype and semicolon:
*
* extern int initialize_foobar_device(int, int, int) __init;
*
* For initialized data:
* You should insert __initdata between the variable name and equal
* sign followed by value, e.g.:
*
* static int init_variable __initdata = 0;
* static char linux_logo[] __initdata = { 0x32, 0x36, ... };
*
* For initialized data not at file scope, i.e. within a function,
* you should use __initlocaldata instead, due to a bug in GCC 2.7.
*/
/*
* Disable the __initfunc macros if a file that is a part of a
* module attempts to use them. We do not want to interfere
* with module linking.
*/
#ifndef MODULE
#include <asm/init.h>
#else
#define __init
#define __initdata
#define __initfunc(__arginit) __arginit
/* For assembly routines */
#define __INIT
#define __FINIT
#define __INITDATA
#endif
#if __GNUC__ >= 2 && __GNUC_MINOR__ >= 8
#define __initlocaldata __initdata
#else
#define __initlocaldata
#endif
#endif
|