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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 11struct core_vma_metadata { 12 unsigned long start, end; 13 unsigned long flags; 14 unsigned long dump_size; 15}; 16 17extern int core_uses_pid; 18extern char core_pattern[]; 19extern 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 */ 25struct coredump_params; 26extern void dump_skip_to(struct coredump_params *cprm, unsigned long to); 27extern void dump_skip(struct coredump_params *cprm, size_t nr); 28extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr); 29extern int dump_align(struct coredump_params *cprm, int align); 30int dump_user_range(struct coredump_params *cprm, unsigned long start, 31 unsigned long len); 32int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count, 33 struct core_vma_metadata **vma_meta, 34 size_t *vma_data_size_ptr); 35extern void do_coredump(const kernel_siginfo_t *siginfo); 36#else 37static inline void do_coredump(const kernel_siginfo_t *siginfo) {} 38#endif 39 40#endif /* _LINUX_COREDUMP_H */