projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 456b565c SK |
1 | /* |
| 2 | * linux/include/kmsg_dump.h | |
| 3 | * | |
| 4 | * Copyright (C) 2009 Net Insight AB | |
| 5 | * | |
| 6 | * Author: Simon Kagstrom <simon.kagstrom@netinsight.net> | |
| 7 | * | |
| 8 | * This file is subject to the terms and conditions of the GNU General Public | |
| 9 | * License. See the file COPYING in the main directory of this archive | |
| 10 | * for more details. | |
| 11 | */ | |
| 12 | #ifndef _LINUX_KMSG_DUMP_H | |
| 13 | #define _LINUX_KMSG_DUMP_H | |
| 14 | ||
| ac562241 | 15 | #include <linux/errno.h> |
| 456b565c SK |
16 | #include <linux/list.h> |
| 17 | ||
| 18 | enum kmsg_dump_reason { | |
| 19 | KMSG_DUMP_OOPS, | |
| 20 | KMSG_DUMP_PANIC, | |
| 0f4bd46e | 21 | KMSG_DUMP_KEXEC, |
| 04c6862c SA |
22 | KMSG_DUMP_RESTART, |
| 23 | KMSG_DUMP_HALT, | |
| 24 | KMSG_DUMP_POWEROFF, | |
| 25 | KMSG_DUMP_EMERG, | |
| 456b565c SK |
26 | }; |
| 27 | ||
| 28 | /** | |
| 29 | * struct kmsg_dumper - kernel crash message dumper structure | |
| 30 | * @dump: The callback which gets called on crashes. The buffer is passed | |
| 31 | * as two sections, where s1 (length l1) contains the older | |
| 32 | * messages and s2 (length l2) contains the newer. | |
| 33 | * @list: Entry in the dumper list (private) | |
| 34 | * @registered: Flag that specifies if this is already registered | |
| 35 | */ | |
| 36 | struct kmsg_dumper { | |
| 37 | void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason, | |
| 38 | const char *s1, unsigned long l1, | |
| 39 | const char *s2, unsigned long l2); | |
| 40 | struct list_head list; | |
| 41 | int registered; | |
| 42 | }; | |
| 43 | ||
| 595dd3d8 | 44 | #ifdef CONFIG_PRINTK |
| 456b565c SK |
45 | void kmsg_dump(enum kmsg_dump_reason reason); |
| 46 | ||
| 47 | int kmsg_dump_register(struct kmsg_dumper *dumper); | |
| 48 | ||
| 49 | int kmsg_dump_unregister(struct kmsg_dumper *dumper); | |
| 595dd3d8 RD |
50 | #else |
| 51 | static inline void kmsg_dump(enum kmsg_dump_reason reason) | |
| 52 | { | |
| 53 | } | |
| 54 | ||
| 55 | static inline int kmsg_dump_register(struct kmsg_dumper *dumper) | |
| 56 | { | |
| 57 | return -EINVAL; | |
| 58 | } | |
| 59 | ||
| 60 | static inline int kmsg_dump_unregister(struct kmsg_dumper *dumper) | |
| 61 | { | |
| 62 | return -EINVAL; | |
| 63 | } | |
| 64 | #endif | |
| 456b565c SK |
65 | |
| 66 | #endif /* _LINUX_KMSG_DUMP_H */ |