From: Akihiro Nagai <akihiro.nagai.hw@hitachi.com>
To: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>,
Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Frederic Weisbecker <fweisbec@gmail.com>,
linux-kernel@vger.kernel.org,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
yrl.pp-manager.tt@hitachi.com, Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH -tip v2 4/6] perf script: print DSOs and symbols for BTS branch_from addr
Date: Thu, 21 Jul 2011 18:36:50 +0900 [thread overview]
Message-ID: <4E27F332.8020501@hitachi.com> (raw)
In-Reply-To: <4E230C63.50601@gmail.com>
(2011/07/18 1:22), David Ahern wrote:
>
>
> On 07/17/2011 03:31 AM, Akihiro Nagai wrote:
>> Print DSOs and symbols for branch_from address of BTS.
>> BTS records branch_from address in 'addr' fields,
>> and branch_to address in 'ip' field. Latest perf-script
>> resolves DSOs and symbols only for 'ip' field.
>> This patch resolves them for 'addr' field too.
>
> Description does not match code change. What you are doing is enhancing
> the detection of when a sample address should correlate to a symbol. In
> this case you are adding HW_BRANCH_INSTRUCTIONS event.
I see. In the next patch set, I'd like to fix it. For example,
"Enhance IP and ADDR correlation detection of BTS event"
Thank you.
>
> David
>
>
>>
>> # perf script -f ip,addr,dso,sym
>> 3f03e016b0 (unknown) ([kernel.kallsyms]) ffffffff814675d2 irq_return ([kernel.kallsyms])
>> 3f03e016b0 _start (/lib64/ld-2.14.so) ffffffff814675d2 irq_return ([kernel.kallsyms])
>> 3f03e04b80 _dl_start (/lib64/ld-2.14.so) 3f03e016b3 _start (/lib64/ld-2.14.so)
>> 3f03e04b80 _dl_start (/lib64/ld-2.14.so) ffffffff814675d2 irq_return ([kernel.kallsyms])
>> 3f03e04ba6 _dl_start (/lib64/ld-2.14.so) ffffffff814675d2 irq_return ([kernel.kallsyms])
>> 3f03e04bad _dl_start (/lib64/ld-2.14.so) ffffffff814675d2 irq_return ([kernel.kallsyms])
>> 3f03e04c1d _dl_start (/lib64/ld-2.14.so) 3f03e04bfb _dl_start (/lib64/ld-2.14.so)
>> [snip]
>>
>> Signed-off-by: Akihiro Nagai<akihiro.nagai.hw@hitachi.com>
>> Cc: Peter Zijlstra<peterz@infradead.org>
>> Cc: Frederic Weisbecker<fweisbec@gmail.com>
>> Cc: Paul Mackerras<paulus@samba.org>
>> Cc: Ingo Molnar<mingo@elte.hu>
>> Cc: Arnaldo Carvalho de Melo<acme@infradead.org>
>> Cc: David Ahern<dsahern@gmail.com>
>> Cc: Masami Hiramatsu<masami.hiramatsu.pt@hitachi.com>
next prev parent reply other threads:[~2011-07-21 9:36 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-17 9:30 [PATCH -tip v2 0/6] perf script: add BTS analysis features Akihiro Nagai
2011-07-17 9:30 ` [PATCH -tip v2 1/6] [BUGFIX] perf script: print correct IP address Akihiro Nagai
2011-07-17 15:59 ` David Ahern
2011-07-17 17:29 ` Frederic Weisbecker
2011-07-17 9:30 ` [PATCH -tip v2 2/6] perf script: add magic word to indicate the failure of resolving symbols Akihiro Nagai
2011-07-17 16:07 ` David Ahern
2011-07-17 16:30 ` David Ahern
2011-07-21 9:36 ` Akihiro Nagai
2011-07-21 9:42 ` Peter Zijlstra
2011-07-21 14:39 ` David Ahern
2011-07-22 4:25 ` Akihiro Nagai
2011-07-17 9:30 ` [PATCH -tip v2 3/6] perf script: resolve DSOs and symbols for user-space Akihiro Nagai
2011-07-17 16:20 ` David Ahern
2011-07-21 9:36 ` Akihiro Nagai
2011-07-17 9:31 ` [PATCH -tip v2 4/6] perf script: print DSOs and symbols for BTS branch_from addr Akihiro Nagai
2011-07-17 16:22 ` David Ahern
2011-07-21 9:36 ` Akihiro Nagai [this message]
2011-07-17 9:31 ` [PATCH -tip v2 5/6] perf script: add the offset field specifier Akihiro Nagai
2011-07-17 16:28 ` David Ahern
2011-07-17 9:31 ` [PATCH -tip v2 6/6] perf script: add option resolving vmlinux path Akihiro Nagai
2011-07-17 16:36 ` David Ahern
2011-07-21 9:36 ` Akihiro Nagai
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