LXR linux/arch/arc/include/asm/kprobes.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
   4 */
   5
   6#ifndef _ARC_KPROBES_H
   7#define _ARC_KPROBES_H
   8
   9#include <asm-generic/kprobes.h>
  10
  11#ifdef CONFIG_KPROBES
  12
  13typedef u16 kprobe_opcode_t;
  14
  15#define UNIMP_S_INSTRUCTION 0x79e0
  16#define TRAP_S_2_INSTRUCTION 0x785e
  17
  18#define MAX_INSN_SIZE   8
  19#define MAX_STACK_SIZE  64
  20
  21struct arch_specific_insn {
  22        int is_short;
  23        kprobe_opcode_t *t1_addr, *t2_addr;
  24        kprobe_opcode_t t1_opcode, t2_opcode;
  25};
  26
  27#define flush_insn_slot(p)  do {  } while (0)
  28
  29#define kretprobe_blacklist_size    0
  30
  31struct kprobe;
  32
  33void arch_remove_kprobe(struct kprobe *p);
  34
  35int kprobe_exceptions_notify(struct notifier_block *self,
  36                             unsigned long val, void *data);
  37
  38struct prev_kprobe {
  39        struct kprobe *kp;
  40        unsigned long status;
  41};
  42
  43struct kprobe_ctlblk {
  44        unsigned int kprobe_status;
  45        struct prev_kprobe prev_kprobe;
  46};
  47
  48int kprobe_fault_handler(struct pt_regs *regs, unsigned long cause);
  49void kretprobe_trampoline(void);
  50void trap_is_kprobe(unsigned long address, struct pt_regs *regs);
  51#else
  52#define trap_is_kprobe(address, regs)
  53#endif /* CONFIG_KPROBES */
  54
  55#endif /* _ARC_KPROBES_H */
  56