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 struct core_vma_metadata { 11 unsigned long start, end; 12 unsigned long flags; 13 unsigned long dump_size; 14 }; 15 16 /* 17 * These are the only things you should do on a core-file: use only these 18 * functions to write out all the necessary info. 19 */ 20 struct coredump_params; 21 extern int dump_skip(struct coredump_params *cprm, size_t nr); 22 extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr); 23 extern int dump_align(struct coredump_params *cprm, int align); 24 extern void dump_truncate(struct coredump_params *cprm); 25 int dump_user_range(struct coredump_params *cprm, unsigned long start, 26 unsigned long len); 27 int dump_vma_snapshot(struct coredump_params *cprm, int *vma_count, 28 struct core_vma_metadata **vma_meta, 29 size_t *vma_data_size_ptr); 30 #ifdef CONFIG_COREDUMP 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 extern int core_uses_pid; 37 extern char core_pattern[]; 38 extern unsigned int core_pipe_limit; 39 40 #endif /* _LINUX_COREDUMP_H */ 41