Re: [PATCH v4 2/3] Support for perf to probe into SDT markers:
From: Namhyung Kim
Date: Tue Oct 29 2013 - 01:31:21 EST
On Tue, 29 Oct 2013 12:19:37 +0900, Masami Hiramatsu wrote:
> (2013/10/29 2:48), Pekka Enberg wrote:
>> For the 32-bit and 64-bit libc case, why cannot 'perf list'
>> by default print out something like:
>> $ perf list
>> libc:setjmp [SDT marker group]
>> and provide a '--fully-qualified' command line option that:
>> $ perf list --fully-qualified
>> libc:setjmp => libc32:setjmp, libc64:setjmp [SDT marker group]
>> libc32:setjmp => libc:setjmp@/lib/libc.so.6 [SDT marker]
>> libc64:setjmp => libc:setjmp@/lib64/libc.so.6 [SDT marker]
>> and then teach 'perf trace' to deal with SDT marker groups
>> where you trace two events, not one?
> Ah, that's a good idea. :)
> And it also is needed for another probe event because
> sometimes inlined functions have multiple instances.
> I'd like to fold them as one event group.
Yes, I'd love to see it as well. :)
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