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80 lines
2.2 KiB
80 lines
2.2 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* arch/arm/include/asm/kprobes.h |
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* |
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* Copyright (C) 2006, 2007 Motorola Inc. |
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*/ |
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#ifndef _ARM_KPROBES_H |
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#define _ARM_KPROBES_H |
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#include <asm-generic/kprobes.h> |
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#ifdef CONFIG_KPROBES |
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#include <linux/types.h> |
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#include <linux/ptrace.h> |
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#include <linux/notifier.h> |
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#define __ARCH_WANT_KPROBES_INSN_SLOT |
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#define MAX_INSN_SIZE 2 |
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#define flush_insn_slot(p) do { } while (0) |
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#define kretprobe_blacklist_size 0 |
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typedef u32 kprobe_opcode_t; |
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struct kprobe; |
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#include <asm/probes.h> |
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#define arch_specific_insn arch_probes_insn |
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struct prev_kprobe { |
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struct kprobe *kp; |
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unsigned int status; |
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}; |
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/* per-cpu kprobe control block */ |
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struct kprobe_ctlblk { |
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unsigned int kprobe_status; |
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struct prev_kprobe prev_kprobe; |
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}; |
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void arch_remove_kprobe(struct kprobe *); |
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int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr); |
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int kprobe_exceptions_notify(struct notifier_block *self, |
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unsigned long val, void *data); |
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/* optinsn template addresses */ |
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extern __visible kprobe_opcode_t optprobe_template_entry[]; |
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extern __visible kprobe_opcode_t optprobe_template_val[]; |
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extern __visible kprobe_opcode_t optprobe_template_call[]; |
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extern __visible kprobe_opcode_t optprobe_template_end[]; |
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extern __visible kprobe_opcode_t optprobe_template_sub_sp[]; |
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extern __visible kprobe_opcode_t optprobe_template_add_sp[]; |
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extern __visible kprobe_opcode_t optprobe_template_restore_begin[]; |
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extern __visible kprobe_opcode_t optprobe_template_restore_orig_insn[]; |
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extern __visible kprobe_opcode_t optprobe_template_restore_end[]; |
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#define MAX_OPTIMIZED_LENGTH 4 |
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#define MAX_OPTINSN_SIZE \ |
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((unsigned long)optprobe_template_end - \ |
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(unsigned long)optprobe_template_entry) |
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#define RELATIVEJUMP_SIZE 4 |
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struct arch_optimized_insn { |
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/* |
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* copy of the original instructions. |
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* Different from x86, ARM kprobe_opcode_t is u32. |
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*/ |
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#define MAX_COPIED_INSN DIV_ROUND_UP(RELATIVEJUMP_SIZE, sizeof(kprobe_opcode_t)) |
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kprobe_opcode_t copied_insn[MAX_COPIED_INSN]; |
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/* detour code buffer */ |
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kprobe_opcode_t *insn; |
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/* |
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* We always copy one instruction on ARM, |
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* so size will always be 4, and unlike x86, there is no |
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* need for a size field. |
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*/ |
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}; |
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#endif /* CONFIG_KPROBES */ |
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#endif /* _ARM_KPROBES_H */
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