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SubjectRe: [PATCH -tip perf/probes 00/10] x86 insn decoder bugfixes and perf-probe syntax changes
Masami Hiramatsu wrote:
> Masami Hiramatsu wrote:
>> Ingo Molnar wrote:
>>> What we want here is two fold:
>>>
>>> - enable kprobes event support when perf events is enabled and kprobes
>>> is enabled. We dont want another config option for it.
>>
>> Sure, at least that combination should enable kprobe-tracer forcibly.
>
> Hmm, someone may not want to enables kprobe-tracer. Perhaps,
> "default y if (EVENT_PROFILE)" is enough, isn't it?

Oops, this causes recursive dependency error :-(

kernel/trace/Kconfig:90:error: found recursive dependency: TRACING ->
EVENT_TRACING -> EVENT_PROFILE -> KPROBE_TRACER -> GENERIC_TRACER -> TRACING

At this time, this kind of weak dependency may not supported by Kbuild yet.

Thank you,

--
Masami Hiramatsu

Software Engineer
Hitachi Computer Products (America), Inc.
Software Solutions Division

e-mail: mhiramat@redhat.com



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