root/arch/x86/include/asm/uprobes.h

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INCLUDED FROM

#ifndef _ASM_UPROBES_H
#define _ASM_UPROBES_H
/*
 * User-space Probes (UProbes) for x86
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 * Copyright (C) IBM Corporation, 2008-2011
 * Authors:
 *      Srikar Dronamraju
 *      Jim Keniston
 */

#include <linux/notifier.h>

typedef u8 uprobe_opcode_t;

#define MAX_UINSN_BYTES                   16
#define UPROBE_XOL_SLOT_BYTES            128    /* to keep it cache aligned */

#define UPROBE_SWBP_INSN                0xcc
#define UPROBE_SWBP_INSN_SIZE              1

struct uprobe_xol_ops;

struct arch_uprobe {
        union {
                u8                      insn[MAX_UINSN_BYTES];
                u8                      ixol[MAX_UINSN_BYTES];
        };

        const struct uprobe_xol_ops     *ops;

        union {
                struct {
                        s32     offs;
                        u8      ilen;
                        u8      opc1;
                }                       branch;
                struct {
                        u8      fixups;
                        u8      ilen;
                }                       defparam;
        };
};

struct arch_uprobe_task {
#ifdef CONFIG_X86_64
        unsigned long                   saved_scratch_register;
#endif
        unsigned int                    saved_trap_nr;
        unsigned int                    saved_tf;
};

#endif  /* _ASM_UPROBES_H */
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