linux-kernel - Re: [POC][RFC][PATCH 0/3] tracing: Add perf events to trace buffer

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20251118113145.34ca624e@gandalf.local.home>
Date: Tue, 18 Nov 2025 11:31:45 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
Cc: Steven Rostedt <rostedt@...nel.org>, linux-kernel@...r.kernel.org,
 linux-trace-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>, Andrew Morton
 <akpm@...ux-foundation.org>, Peter Zijlstra <peterz@...radead.org>, Thomas
 Gleixner <tglx@...utronix.de>, Ian Rogers <irogers@...gle.com>, Namhyung
 Kim <namhyung@...nel.org>, Arnaldo Carvalho de Melo <acme@...nel.org>, Jiri
 Olsa <jolsa@...nel.org>, Douglas Raillard <douglas.raillard@....com>
Subject: Re: [POC][RFC][PATCH 0/3] tracing: Add perf events to trace buffer

On Tue, 18 Nov 2025 17:11:47 +0900
Masami Hiramatsu (Google) <mhiramat@...nel.org> wrote:

> > > If we need to set those counters for tracers and events separately,
> > > we can add `events/trigger` and `tracer-trigger` files.  
> > 
> > As I mentioned, the trigger for events should be in the events directory.  
> 
> Agreed.
> 
> > 
> > We could add a ftrace_trigger that can affect both function and
> > function graph tracer.  
> 

Actually, I should add "trigger" files in the ftrace events:

  events/ftrace/function/trigger
  events/ftrace/funcgraph_entry/tigger
  events/ftrace/funcgraph_exit/tigger


Hmm,

-- Steve