From: Steven Rostedt <rostedt@goodmis.org>
To: richard clark <richard.xnu.clark@gmail.com>
Cc: bristot@kernel.org, linux-trace-devel@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: Question about 'for_each_kernel_tracepoint(...)' function
Date: Thu, 20 Oct 2022 11:14:39 -0400 [thread overview]
Message-ID: <20221020111439.76e72230@gandalf.local.home> (raw)
In-Reply-To: <CAJNi4rM0K=-wgJrS0iLMkam77JTO7oRxcP9VkHGbuTiVGBovMA@mail.gmail.com>
On Thu, 20 Oct 2022 17:32:57 +0800
richard clark <richard.xnu.clark@gmail.com> wrote:
> Hi,
> Can this function only find the trace points defined in the kernel
It should find all tracepoints.
> image? I want to define a trace event in my kernel module A, then B
> module to register a probe callback function for that event TP in A. I
> want to kick off a timer in A and call the traced function
> periodically, thus I can monitor the events happening in A from B.
You could also export the tracepoint from A and reference it directly in B.
>
> Can I do that, is it possible?
>
Try it and find out. Why ask?
-- Steve
next prev parent reply other threads:[~2022-10-20 15:14 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-20 9:32 Question about 'for_each_kernel_tracepoint(...)' function richard clark
2022-10-20 15:14 ` Steven Rostedt [this message]
2022-10-21 1:43 ` richard clark
2022-10-21 2:12 ` Steven Rostedt
2022-10-21 3:51 ` richard clark
2022-10-21 12:32 ` Steven Rostedt
2022-10-22 2:55 ` richard clark
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