[PATCH] kprobes: fix single-step out of line - take2
Now that PPC64 has no-execute support, here is a second try to fix the single step out of line during kprobe execution. Kprobes on x86_64 already solved this problem by allocating an executable page and using it as the scratch area for stepping out of line. Reuse that. Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Linus Torvalds
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d3b8a1a849
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9ec4b1f356
@@ -177,6 +177,8 @@ extern void arch_arm_kprobe(struct kprobe *p);
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extern void arch_disarm_kprobe(struct kprobe *p);
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extern void arch_remove_kprobe(struct kprobe *p);
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extern void show_registers(struct pt_regs *regs);
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extern kprobe_opcode_t *get_insn_slot(void);
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extern void free_insn_slot(kprobe_opcode_t *slot);
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/* Get the kprobe at this addr (if any). Must have called lock_kprobes */
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struct kprobe *get_kprobe(void *addr);
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