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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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454f3e132d
Remove arch dependent setjump/longjump functions and unused fields in kprobe_ctlblk for jprobes from arch/arm. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/lkml/152942439350.15209.11127640848082283736.stgit@devbox Signed-off-by: Ingo Molnar <mingo@kernel.org>
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
/*
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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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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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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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