arch/powerpc/include/asm/uprobes.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2 #ifndef _ASM_UPROBES_H
   3 #define _ASM_UPROBES_H
   4 /*
   5  * User-space Probes (UProbes) for powerpc
   6  *
   7  * Copyright IBM Corporation, 2007-2012
   8  *
   9  * Adapted from the x86 port by Ananth N Mavinakayanahalli <ananth@in.ibm.com>
  10  */
  11
  12 #include <linux/notifier.h>
  13 #include <asm/probes.h>
  14
  15 typedef ppc_opcode_t uprobe_opcode_t;
  16
  17 #define MAX_UINSN_BYTES         4
  18 #define UPROBE_XOL_SLOT_BYTES   (MAX_UINSN_BYTES)
  19
  20 /* The following alias is needed for reference from arch-agnostic code */
  21 #define UPROBE_SWBP_INSN        BREAKPOINT_INSTRUCTION
  22 #define UPROBE_SWBP_INSN_SIZE   4 /* swbp insn size in bytes */
  23
  24 struct arch_uprobe {
  25         union {
  26                 u32     insn;
  27                 u32     ixol;
  28         };
  29 };
  30
  31 struct arch_uprobe_task {
  32         unsigned long   saved_trap_nr;
  33 };
  34
  35 #endif  /* _ASM_UPROBES_H */