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The NOKPROBE_SYMBOL macro (and others) were moved to asm-generic/kprobes.h in 2017 by commit7d134b2ce6("kprobes: move kprobe declarations to asm-generic/kprobes.h"), and this new header was included by asm/kprobes.h unconditionally on all architectures. When kprobe support was added to parisc in 2017 by commit8858ac8e9e("parisc: Implement kprobes"), that header was only included when CONFIG_KPROBES was enabled. This can lead to build failures when NOKPROBE_SYMBOL is used, but CONFIG_KPROBES is disabled. This mistake however was never actually noticed because linux/kprobes.h also includes asm-generic/kprobes.h (though I do not understand why that is, because it also includes asm/kprobes.h). To prevent eventual build failures, I suggest to always include asm-generic/kprobes.h on parisc, just like all the other architectures do. This way, including asm/kprobes.h suffices, and nobody (outside of arch/) ever needs to explicitly include asm-generic/kprobes.h. Signed-off-by: Max Kellermann <max.kellermann@ionos.com> Signed-off-by: Helge Deller <deller@gmx.de>
61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* arch/parisc/include/asm/kprobes.h
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*
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* PA-RISC kprobes implementation
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*
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* Copyright (c) 2019 Sven Schnelle <svens@stackframe.org>
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*/
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#ifndef _PARISC_KPROBES_H
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#define _PARISC_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 PARISC_KPROBES_BREAK_INSN 0x3ff801f
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#define PARISC_KPROBES_BREAK_INSN2 0x3ff801e
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#define __ARCH_WANT_KPROBES_INSN_SLOT
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#define MAX_INSN_SIZE 2
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typedef u32 kprobe_opcode_t;
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struct kprobe;
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void arch_remove_kprobe(struct kprobe *p);
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#define flush_insn_slot(p) \
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flush_icache_range((unsigned long)&(p)->ainsn.insn[0], \
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(unsigned long)&(p)->ainsn.insn[0] + \
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MAX_INSN_SIZE*sizeof(kprobe_opcode_t))
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#define kretprobe_blacklist_size 0
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struct arch_specific_insn {
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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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};
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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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unsigned long iaoq[2];
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};
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int __kprobes parisc_kprobe_break_handler(struct pt_regs *regs);
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int __kprobes parisc_kprobe_ss_handler(struct pt_regs *regs);
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static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
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{
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return 0;
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}
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#endif /* CONFIG_KPROBES */
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#endif /* _PARISC_KPROBES_H */
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