projects / linux-block.git / blame
| 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 */ |