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 /* 18 * These are the only things you should do on a core-file: use only these 19 * functions to write out all the necessary info. 20 */ 21 struct coredump_params; 22 extern void dump_skip_to(struct coredump_params *cprm, unsigned long to); 23 extern void dump_skip(struct coredump_params *cprm, size_t nr); 24 extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr); 25 extern int dump_align(struct coredump_params *cprm, int align); 26 int dump_user_range(struct coredump_params *cprm, unsigned long start, 27 unsigned long len); 28 int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count, 29 struct core_vma_metadata **vma_meta, 30 size_t *vma_data_size_ptr); 31 extern void do_coredump(const kernel_siginfo_t *siginfo); 32 #else 33 static inline void do_coredump(const kernel_siginfo_t *siginfo) {} 34 #endif 35 36 #if defined(CONFIG_COREDUMP) && defined(CONFIG_SYSCTL) 37 extern void validate_coredump_safety(void); 38 #else 39 static inline void validate_coredump_safety(void) {} 40 #endif 41 42 #endif /* _LINUX_COREDUMP_H */ 43