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
  13 typedef 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
  21 struct 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
  31 struct kprobe;
  32
  33 void arch_remove_kprobe(struct kprobe *p);
  34
  35 struct prev_kprobe {
  36         struct kprobe *kp;
  37         unsigned long status;
  38 };
  39
  40 struct kprobe_ctlblk {
  41         unsigned int kprobe_status;
  42         struct prev_kprobe prev_kprobe;
  43 };
  44
  45 int kprobe_fault_handler(struct pt_regs *regs, unsigned long cause);
  46 void __kretprobe_trampoline(void);
  47 void trap_is_kprobe(unsigned long address, struct pt_regs *regs);
  48 #else
  49 #define trap_is_kprobe(address, regs)
  50 #endif /* CONFIG_KPROBES */
  51
  52 #endif /* _ARC_KPROBES_H */