LXR linux/arch/um/sys-x86_64/shared/sysdep/faultinfo.h

   1/*
   2 * Copyright (C) 2004 Fujitsu Siemens Computers GmbH
   3 * Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
   4 * Licensed under the GPL
   5 */
   6
   7#ifndef __FAULTINFO_X86_64_H
   8#define __FAULTINFO_X86_64_H
   9
  10/* this structure contains the full arch-specific faultinfo
  11 * from the traps.
  12 * On i386, ptrace_faultinfo unfortunately doesn't provide
  13 * all the info, since trap_no is missing.
  14 * All common elements are defined at the same position in
  15 * both structures, thus making it easy to copy the
  16 * contents without knowledge about the structure elements.
  17 */
  18struct faultinfo {
  19        int error_code; /* in ptrace_faultinfo misleadingly called is_write */
  20        unsigned long cr2; /* in ptrace_faultinfo called addr */
  21        int trap_no; /* missing in ptrace_faultinfo */
  22};
  23
  24#define FAULT_WRITE(fi) ((fi).error_code & 2)
  25#define FAULT_ADDRESS(fi) ((fi).cr2)
  26
  27#define PTRACE_FULL_FAULTINFO 1
  28
  29#endif
  30