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