include/asm/kprobes.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
0004  */
0005
0006 #ifndef _ARC_KPROBES_H
0007 #define _ARC_KPROBES_H
0008
0009 #include <asm-generic/kprobes.h>
0010
0011 #ifdef CONFIG_KPROBES
0012
0013 typedef u16 kprobe_opcode_t;
0014
0015 #define UNIMP_S_INSTRUCTION 0x79e0
0016 #define TRAP_S_2_INSTRUCTION 0x785e
0017
0018 #define MAX_INSN_SIZE   8
0019 #define MAX_STACK_SIZE  64
0020
0021 struct arch_specific_insn {
0022     int is_short;
0023     kprobe_opcode_t *t1_addr, *t2_addr;
0024     kprobe_opcode_t t1_opcode, t2_opcode;
0025 };
0026
0027 #define flush_insn_slot(p)  do {  } while (0)
0028
0029 #define kretprobe_blacklist_size    0
0030
0031 struct kprobe;
0032
0033 void arch_remove_kprobe(struct kprobe *p);
0034
0035 int kprobe_exceptions_notify(struct notifier_block *self,
0036                  unsigned long val, void *data);
0037
0038 struct prev_kprobe {
0039     struct kprobe *kp;
0040     unsigned long status;
0041 };
0042
0043 struct kprobe_ctlblk {
0044     unsigned int kprobe_status;
0045     struct prev_kprobe prev_kprobe;
0046 };
0047
0048 int kprobe_fault_handler(struct pt_regs *regs, unsigned long cause);
0049 void __kretprobe_trampoline(void);
0050 void trap_is_kprobe(unsigned long address, struct pt_regs *regs);
0051 #else
0052 #define trap_is_kprobe(address, regs)
0053 #endif /* CONFIG_KPROBES */
0054
0055 #endif /* _ARC_KPROBES_H */