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 #include <asm/inst.h>
  15
  16 typedef ppc_opcode_t uprobe_opcode_t;
  17
  18 #define MAX_UINSN_BYTES         8
  19 #define UPROBE_XOL_SLOT_BYTES   (MAX_UINSN_BYTES)
  20
  21 /* The following alias is needed for reference from arch-agnostic code */
  22 #define UPROBE_SWBP_INSN        BREAKPOINT_INSTRUCTION
  23 #define UPROBE_SWBP_INSN_SIZE   4 /* swbp insn size in bytes */
  24
  25 struct arch_uprobe {
  26         union {
  27                 struct ppc_inst insn;
  28                 struct ppc_inst ixol;
  29         };
  30 };
  31
  32 struct arch_uprobe_task {
  33         unsigned long   saved_trap_nr;
  34 };
  35
  36 #endif  /* _ASM_UPROBES_H */