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Date: Mon, 19 Sep 2016 11:54:02 +0200
From: Jiri Olsa <jolsa@redhat.com>
To: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>,
        linux-kernel@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>, Thomas Gleixner <tglx@linutronix.de>,
        Namhyung Kim <namhyung@kernel.org>, David Ahern <dsahern@gmail.com>
Subject: failed to add c++ probe
Message-ID: <20160919095402.GA2306@krava>
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hi,
Thomas reported failure to add an uprobe on libstdc++.so.6 like:

[jolsa@krava perf]$ sudo ./perf probe -x /usr/lib64/libstdc++.so.6 'std::ostream::flush'
Semantic error :There is non-digit char in line number.
  Error: Command Parse Error.

it does not work also if I use the mangled name like:

[jolsa@krava perf]$ sudo ./perf probe -x /usr/lib64/libstdc++.so.6 '_ZSt5flushIwSt11char_traitsIwEERSt13basic_ostreamIT_T0_ES6_'
Probe point '_ZSt5flushIwSt11char_traitsIwEERSt13basic_ostreamIT_T0_ES6_' not found.
  Error: Failed to add events.

thanks,
jirka