]>
Commit | Line | Data |
---|---|---|
4552d5dc JB |
1 | #ifndef _LINUX_UNWIND_H |
2 | #define _LINUX_UNWIND_H | |
3 | ||
4 | /* | |
5 | * Copyright (C) 2002-2006 Novell, Inc. | |
6 | * Jan Beulich <jbeulich@novell.com> | |
7 | * This code is released under version 2 of the GNU GPL. | |
8 | * | |
9 | * A simple API for unwinding kernel stacks. This is used for | |
10 | * debugging and error reporting purposes. The kernel doesn't need | |
11 | * full-blown stack unwinding with all the bells and whistles, so there | |
12 | * is not much point in implementing the full Dwarf2 unwind API. | |
13 | */ | |
14 | ||
4552d5dc JB |
15 | struct module; |
16 | ||
4552d5dc JB |
17 | struct unwind_frame_info {}; |
18 | ||
19 | static inline void unwind_init(void) {} | |
690a973f | 20 | static inline void unwind_setup(void) {} |
4552d5dc | 21 | |
83f4fcce JB |
22 | #ifdef CONFIG_MODULES |
23 | ||
4552d5dc JB |
24 | static inline void *unwind_add_table(struct module *mod, |
25 | const void *table_start, | |
26 | unsigned long table_size) | |
27 | { | |
28 | return NULL; | |
29 | } | |
30 | ||
31 | static inline void unwind_remove_table(void *handle, int init_only) | |
32 | { | |
33 | } | |
34 | ||
d1526e2c LT |
35 | #endif |
36 | ||
4552d5dc JB |
37 | static inline int unwind_init_frame_info(struct unwind_frame_info *info, |
38 | struct task_struct *tsk, | |
39 | const struct pt_regs *regs) | |
40 | { | |
41 | return -ENOSYS; | |
42 | } | |
43 | ||
44 | static inline int unwind_init_blocked(struct unwind_frame_info *info, | |
45 | struct task_struct *tsk) | |
46 | { | |
47 | return -ENOSYS; | |
48 | } | |
49 | ||
50 | static inline int unwind_init_running(struct unwind_frame_info *info, | |
c33bd9aa JB |
51 | asmlinkage int (*cb)(struct unwind_frame_info *, |
52 | void *arg), | |
4552d5dc JB |
53 | void *arg) |
54 | { | |
55 | return -ENOSYS; | |
56 | } | |
57 | ||
58 | static inline int unwind(struct unwind_frame_info *info) | |
59 | { | |
60 | return -ENOSYS; | |
61 | } | |
62 | ||
63 | static inline int unwind_to_user(struct unwind_frame_info *info) | |
64 | { | |
65 | return -ENOSYS; | |
66 | } | |
67 | ||
4552d5dc | 68 | #endif /* _LINUX_UNWIND_H */ |