Messages in this thread | | | Date | Thu, 27 Aug 2020 11:02:20 +0200 | From | peterz@infradea ... | Subject | Re: x86/kprobes: kretprobe fails to triggered if kprobe at function entry is not optimized (trigger by int3 breakpoint) |
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On Tue, Aug 25, 2020 at 10:15:55PM +0900, Masami Hiramatsu wrote:
> Yeah, kretprobe already provided the per-instance data (as far as > I know, only systemtap depends on it). We need to provide it for > such users.
Well, systemtap is out of tree, we don't _need_ to provide anything for them. Furthermore, the function-graph tracer's ret_stack, which you said you wanted to integrate with, also doesn't provide this.
Ditching it makes things simpler in that all kretprobe_instance's will be the same and we no longer need per kretprobe storage of them.
Anyway, let me try and preserve them for now...
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