forked from Minki/linux
5c48b108ec
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
36 lines
1.1 KiB
C
36 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2004 Fujitsu Siemens Computers GmbH
|
|
* Author: Bodo Stroesser <bstroesser@fujitsu-siemens.com>
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#ifndef __FAULTINFO_I386_H
|
|
#define __FAULTINFO_I386_H
|
|
|
|
/* this structure contains the full arch-specific faultinfo
|
|
* from the traps.
|
|
* On i386, ptrace_faultinfo unfortunately doesn't provide
|
|
* all the info, since trap_no is missing.
|
|
* All common elements are defined at the same position in
|
|
* both structures, thus making it easy to copy the
|
|
* contents without knowledge about the structure elements.
|
|
*/
|
|
struct faultinfo {
|
|
int error_code; /* in ptrace_faultinfo misleadingly called is_write */
|
|
unsigned long cr2; /* in ptrace_faultinfo called addr */
|
|
int trap_no; /* missing in ptrace_faultinfo */
|
|
};
|
|
|
|
#define FAULT_WRITE(fi) ((fi).error_code & 2)
|
|
#define FAULT_ADDRESS(fi) ((fi).cr2)
|
|
|
|
/* This is Page Fault */
|
|
#define SEGV_IS_FIXABLE(fi) ((fi)->trap_no == 14)
|
|
|
|
/* SKAS3 has no trap_no on i386, but get_skas_faultinfo() sets it to 0. */
|
|
#define SEGV_MAYBE_FIXABLE(fi) ((fi)->trap_no == 0 && ptrace_faultinfo)
|
|
|
|
#define PTRACE_FULL_FAULTINFO 0
|
|
|
|
#endif
|