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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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74a0b57627
x86(-64) are the last architectures still using the page fault notifier cruft for the kprobes page fault hook. This patch converts them to the proper direct calls, and removes the now unused pagefault notifier bits aswell as the cruft in kprobes.c that was related to this mess. I know Andi didn't really like this, but all other architecture maintainers agreed the direct calls are much better and besides the obvious cruft removal a common way of dealing with kprobes across architectures is important aswell. [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc64] Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Andi Kleen <ak@suse.de> Cc: <linux-arch@vger.kernel.org> Cc: Prasanna S Panchamukhi <prasanna@in.ibm.com> Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
34 lines
942 B
C
34 lines
942 B
C
/*
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* Kernel Probes (KProbes)
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*
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* Copyright (C) 2005-2006 Atmel Corporation
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* Copyright (C) IBM Corporation, 2002, 2004
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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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#ifndef __ASM_AVR32_KPROBES_H
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#define __ASM_AVR32_KPROBES_H
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#include <linux/types.h>
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typedef u16 kprobe_opcode_t;
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#define BREAKPOINT_INSTRUCTION 0xd673 /* breakpoint */
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#define MAX_INSN_SIZE 2
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#define arch_remove_kprobe(p) do { } while (0)
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/* Architecture specific copy of original instruction */
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struct arch_specific_insn {
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kprobe_opcode_t insn[MAX_INSN_SIZE];
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};
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extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
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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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#define flush_insn_slot(p) do { } while (0)
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#endif /* __ASM_AVR32_KPROBES_H */
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