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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_COREDUMP_H
#define _LINUX_COREDUMP_H
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/fs.h>
#include <asm/siginfo.h>
#ifdef CONFIG_COREDUMP
struct core_vma_metadata {
unsigned long start, end;
unsigned long flags;
unsigned long dump_size;
unsigned long pgoff;
struct file *file;
};
struct coredump_params {
const kernel_siginfo_t *siginfo;
struct file *file;
unsigned long limit;
unsigned long mm_flags;
int cpu;
loff_t written;
loff_t pos;
loff_t to_skip;
int vma_count;
size_t vma_data_size;
struct core_vma_metadata *vma_meta;
};
/*
* These are the only things you should do on a core-file: use only these
* functions to write out all the necessary info.
*/
extern void dump_skip_to(struct coredump_params *cprm, unsigned long to);
extern void dump_skip(struct coredump_params *cprm, size_t nr);
extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
extern int dump_align(struct coredump_params *cprm, int align);
int dump_user_range(struct coredump_params *cprm, unsigned long start,
unsigned long len);
extern void do_coredump(const kernel_siginfo_t *siginfo);
#else
static inline void do_coredump(const kernel_siginfo_t *siginfo) {}
#endif
#if defined(CONFIG_COREDUMP) && defined(CONFIG_SYSCTL)
extern void validate_coredump_safety(void);
#else
static inline void validate_coredump_safety(void) {}
#endif
#endif /* _LINUX_COREDUMP_H */