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 37 static inline void do_coredump(const kernel_siginfo_t *siginfo) {} 38 #endif 39 40 #endif /* _LINUX_COREDUMP_H */ 41