79 lines
1.7 KiB
C
79 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Kernel Probes (KProbes)
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* include/asm-mips/kprobes.h
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*
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* Copyright 2006 Sony Corp.
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* Copyright 2010 Cavium Networks
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*/
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#ifndef _ASM_KPROBES_H
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#define _ASM_KPROBES_H
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#include <asm-generic/kprobes.h>
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#ifdef CONFIG_KPROBES
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#include <linux/ptrace.h>
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#include <linux/types.h>
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#include <asm/cacheflush.h>
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#include <asm/kdebug.h>
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#include <asm/inst.h>
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#define __ARCH_WANT_KPROBES_INSN_SLOT
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struct kprobe;
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struct pt_regs;
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typedef union mips_instruction kprobe_opcode_t;
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#define MAX_INSN_SIZE 2
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#define flush_insn_slot(p) \
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do { \
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if (p->addr) \
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flush_icache_range((unsigned long)p->addr, \
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(unsigned long)p->addr + \
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(MAX_INSN_SIZE * sizeof(kprobe_opcode_t))); \
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} while (0)
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#define kretprobe_blacklist_size 0
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void arch_remove_kprobe(struct kprobe *p);
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int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
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/* Architecture specific copy of original instruction*/
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struct arch_specific_insn {
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/* copy of the original instruction */
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kprobe_opcode_t *insn;
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};
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struct prev_kprobe {
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struct kprobe *kp;
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unsigned long status;
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unsigned long old_SR;
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unsigned long saved_SR;
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unsigned long saved_epc;
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};
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#define SKIP_DELAYSLOT 0x0001
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/* per-cpu kprobe control block */
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struct kprobe_ctlblk {
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unsigned long kprobe_status;
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unsigned long kprobe_old_SR;
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unsigned long kprobe_saved_SR;
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unsigned long kprobe_saved_epc;
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/* Per-thread fields, used while emulating branches */
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unsigned long flags;
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unsigned long target_epc;
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struct prev_kprobe prev_kprobe;
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};
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extern int kprobe_exceptions_notify(struct notifier_block *self,
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unsigned long val, void *data);
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#endif /* CONFIG_KPROBES */
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#endif /* _ASM_KPROBES_H */
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