From: Francis Laniel <flaniel@linux.microsoft.com>
To: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>
Cc: linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v1 1/1] tracing/kprobe: Add multi-probe support for 'perf_kprobe' PMU
Date: Fri, 18 Aug 2023 20:13:43 +0200 [thread overview]
Message-ID: <4853240.31r3eYUQgx@pwmachine> (raw)
In-Reply-To: <20230818114141.2a3a75ee@gandalf.local.home>
Hi.
Le vendredi 18 août 2023, 17:41:41 CEST Steven Rostedt a écrit :
> On Fri, 18 Aug 2023 21:37:05 +0900
>
> Masami Hiramatsu (Google) <mhiramat@kernel.org> wrote:
> > That's why perf probe uses the offset from '_text'. Normal KASLR will just
> > moves all symbols. (Finer one will move all symbols randomely)
> > This should not need to access /proc/kallsyms but vmlinux or SystemMap.
>
> We could just pass in: "_text+offset" too.
So, the idea would be to change the existing create_local_trace_kprobe() and
above functions to indicate the user's offset is to be used against _text and
not address?
> -- Steve
Best regards.
next prev parent reply other threads:[~2023-08-18 18:14 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230816163517.112518-1-flaniel@linux.microsoft.com>
2023-08-16 16:35 ` [RFC PATCH v1 1/1] tracing/kprobe: Add multi-probe support for 'perf_kprobe' PMU Francis Laniel
2023-08-16 18:42 ` Steven Rostedt
2023-08-17 10:59 ` Francis Laniel
2023-08-17 15:13 ` Steven Rostedt
2023-08-18 9:01 ` Francis Laniel
2023-08-18 12:37 ` Masami Hiramatsu
2023-08-18 15:41 ` Steven Rostedt
2023-08-18 18:13 ` Francis Laniel [this message]
2023-08-18 18:20 ` Steven Rostedt
2023-08-19 1:15 ` Masami Hiramatsu
2023-08-19 15:22 ` Song Liu
2023-08-20 9:32 ` Masami Hiramatsu
2023-08-20 10:02 ` Song Liu
2023-08-20 13:16 ` Masami Hiramatsu
2023-08-21 6:09 ` Song Liu
2023-08-21 10:01 ` Masami Hiramatsu
2023-08-21 14:45 ` Steven Rostedt
2023-08-21 18:07 ` Kees Cook
2023-08-21 14:29 ` Steven Rostedt
2023-08-21 15:19 ` Masami Hiramatsu
2023-08-21 15:28 ` Steven Rostedt
2023-08-17 7:50 ` Masami Hiramatsu
2023-08-17 11:06 ` Francis Laniel
2023-08-18 13:05 ` Masami Hiramatsu
2023-08-18 18:12 ` Francis Laniel
2023-08-19 1:11 ` Masami Hiramatsu
2023-08-20 20:23 ` Jiri Olsa
2023-08-21 12:22 ` Francis Laniel
2023-08-20 20:34 ` Jiri Olsa
2023-08-21 12:24 ` Francis Laniel
2023-08-22 13:13 ` Jiri Olsa
2023-08-21 12:55 ` Francis Laniel
2023-08-23 0:36 ` Masami Hiramatsu
2023-08-23 9:54 ` Francis Laniel
2023-08-23 13:45 ` Masami Hiramatsu
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