LXR linux/arch/powerpc/include/asm/uprobes.h

   1#ifndef _ASM_UPROBES_H
   2#define _ASM_UPROBES_H
   3/*
   4 * User-space Probes (UProbes) for powerpc
   5 *
   6 * This program is free software; you can redistribute it and/or modify
   7 * it under the terms of the GNU General Public License as published by
   8 * the Free Software Foundation; either version 2 of the License, or
   9 * (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19 *
  20 * Copyright IBM Corporation, 2007-2012
  21 *
  22 * Adapted from the x86 port by Ananth N Mavinakayanahalli <ananth@in.ibm.com>
  23 */
  24
  25#include <linux/notifier.h>
  26#include <asm/probes.h>
  27
  28typedef ppc_opcode_t uprobe_opcode_t;
  29
  30#define MAX_UINSN_BYTES         4
  31#define UPROBE_XOL_SLOT_BYTES   (MAX_UINSN_BYTES)
  32
  33/* The following alias is needed for reference from arch-agnostic code */
  34#define UPROBE_SWBP_INSN        BREAKPOINT_INSTRUCTION
  35#define UPROBE_SWBP_INSN_SIZE   4 /* swbp insn size in bytes */
  36
  37struct arch_uprobe {
  38        union {
  39                u32     insn;
  40                u32     ixol;
  41        };
  42};
  43
  44struct arch_uprobe_task {
  45        unsigned long   saved_trap_nr;
  46};
  47
  48#endif  /* _ASM_UPROBES_H */
  49