From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: David Ahern <dsahern@gmail.com>, Jiri Olsa <jolsa@kernel.org>,
Wang Nan <wangnan0@huawei.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [perf probe] How to ask what variables can be collected at function return?
Date: Mon, 28 Sep 2015 11:52:45 -0300 [thread overview]
Message-ID: <20150928145245.GG6022@kernel.org> (raw)
How to figure out which variables can I collect at function return?
None?
I think we need a better error message :-)
[root@zoo ~]# perf probe -V getname_flags%return
Return probe must be on the head of a real function.
Debuginfo analysis failed.
Error: Failed to show vars.
[root@zoo ~]#
- Arnaldo
next reply other threads:[~2015-09-28 14:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-28 14:52 Arnaldo Carvalho de Melo [this message]
2015-09-30 8:05 ` [perf probe] How to ask what variables can be collected at function return? 平松雅巳 / HIRAMATU，MASAMI
2015-09-30 13:18 ` Arnaldo Carvalho de Melo
2015-09-30 16:48 ` 平松雅巳 / HIRAMATU，MASAMI
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