1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef _LINUX_COREDUMP_H |
3 | #define _LINUX_COREDUMP_H |
4 | |
5 | #include <linux/types.h> |
6 | #include <linux/mm.h> |
7 | #include <linux/fs.h> |
8 | #include <asm/siginfo.h> |
9 | |
10 | #ifdef CONFIG_COREDUMP |
11 | struct core_vma_metadata { |
12 | unsigned long start, end; |
13 | unsigned long flags; |
14 | unsigned long dump_size; |
15 | unsigned long pgoff; |
16 | struct file *file; |
17 | }; |
18 | |
19 | struct coredump_params { |
20 | const kernel_siginfo_t *siginfo; |
21 | struct file *file; |
22 | unsigned long limit; |
23 | unsigned long mm_flags; |
24 | int cpu; |
25 | loff_t written; |
26 | loff_t pos; |
27 | loff_t to_skip; |
28 | int vma_count; |
29 | size_t vma_data_size; |
30 | struct core_vma_metadata *vma_meta; |
31 | }; |
32 | |
33 | /* |
34 | * These are the only things you should do on a core-file: use only these |
35 | * functions to write out all the necessary info. |
36 | */ |
37 | extern void dump_skip_to(struct coredump_params *cprm, unsigned long to); |
38 | extern void dump_skip(struct coredump_params *cprm, size_t nr); |
39 | extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr); |
40 | extern int dump_align(struct coredump_params *cprm, int align); |
41 | int dump_user_range(struct coredump_params *cprm, unsigned long start, |
42 | unsigned long len); |
43 | extern void do_coredump(const kernel_siginfo_t *siginfo); |
44 | #else |
45 | static inline void do_coredump(const kernel_siginfo_t *siginfo) {} |
46 | #endif |
47 | |
48 | #if defined(CONFIG_COREDUMP) && defined(CONFIG_SYSCTL) |
49 | extern void validate_coredump_safety(void); |
50 | #else |
51 | static inline void validate_coredump_safety(void) {} |
52 | #endif |
53 | |
54 | #endif /* _LINUX_COREDUMP_H */ |
55 | |