38a9ff6d24
With ECR now part of pt_regs * No need to propagate from lowest asm handlers as arg * No need to save it in tsk->thread.cause_code * Avoid bit chopping to access the bit-fields More code consolidation, cleanup Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*
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* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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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 _ARC_KPROBES_H
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#define _ARC_KPROBES_H
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#ifdef CONFIG_KPROBES
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typedef u16 kprobe_opcode_t;
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#define UNIMP_S_INSTRUCTION 0x79e0
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#define TRAP_S_2_INSTRUCTION 0x785e
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#define MAX_INSN_SIZE 8
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#define MAX_STACK_SIZE 64
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struct arch_specific_insn {
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int is_short;
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kprobe_opcode_t *t1_addr, *t2_addr;
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kprobe_opcode_t t1_opcode, t2_opcode;
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};
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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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struct kprobe;
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void arch_remove_kprobe(struct kprobe *p);
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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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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 pt_regs jprobe_saved_regs;
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char jprobes_stack[MAX_STACK_SIZE];
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struct prev_kprobe prev_kprobe;
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};
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int kprobe_fault_handler(struct pt_regs *regs, unsigned long cause);
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void kretprobe_trampoline(void);
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void trap_is_kprobe(unsigned long address, struct pt_regs *regs);
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#else
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static void trap_is_kprobe(unsigned long address, struct pt_regs *regs)
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{
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}
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#endif
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#endif
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