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 };
16
17 extern int core_uses_pid;
18 extern char core_pattern[];
19 extern unsigned int core_pipe_limit;
20
21 /*
22 * These are the only things you should do on a core-file: use only these
23 * functions to write out all the necessary info.
24 */
25 struct coredump_params;
26 extern void dump_skip_to(struct coredump_params *cprm, unsigned long to);
27 extern void dump_skip(struct coredump_params *cprm, size_t nr);
28 extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
29 extern int dump_align(struct coredump_params *cprm, int align);
30 int dump_user_range(struct coredump_params *cprm, unsigned long start,
31 unsigned long len);
32 int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count,
33 struct core_vma_metadata **vma_meta,
34 size_t *vma_data_size_ptr);
35 extern void do_coredump(const kernel_siginfo_t *siginfo);
36 #else
do_coredump(const kernel_siginfo_t * siginfo)37 static inline void do_coredump(const kernel_siginfo_t *siginfo) {}
38 #endif
39
40 #endif /* _LINUX_COREDUMP_H */
41