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ftrace: export kretprobe_trampoline for function tracer
Follow suit from kprobe implementations on other archs and make kretprobe_trampoline non-static. Ftrace implmentation (more specifically, kernel/trace/trace.c) requires access to it (see-> http://kerneltrap.org/mailarchive/linux-kernel/2008/5/27/1955234). Signed-off-by: Abhishek Sagar <sagar.abhishek@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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2 changed files with 2 additions and 1 deletions
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@ -274,7 +274,7 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
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* for kretprobe handlers which should normally be interested in r0 only
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* anyway.
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*/
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static void __attribute__((naked)) __kprobes kretprobe_trampoline(void)
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void __naked __kprobes kretprobe_trampoline(void)
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{
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__asm__ __volatile__ (
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"stmdb sp!, {r0 - r11} \n\t"
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@ -59,6 +59,7 @@ struct kprobe_ctlblk {
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};
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void arch_remove_kprobe(struct kprobe *);
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void kretprobe_trampoline(void);
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int kprobe_trap_handler(struct pt_regs *regs, unsigned int instr);
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int kprobe_fault_handler(struct pt_regs *regs, unsigned int fsr);
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