include/linux/coredump.h

   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 */