linux-kernel - Re: [PATCH 22/22] man2: Add uprobe syscall page

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Message-ID: <aBSGuZUzSZAzG8O-@krava>
Date: Fri, 2 May 2025 10:47:53 +0200
From: Jiri Olsa <olsajiri@...il.com>
To: Alejandro Colomar <alx@...nel.org>
Cc: Jiri Olsa <olsajiri@...il.com>, Oleg Nesterov <oleg@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Andrii Nakryiko <andrii@...nel.org>, bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
	x86@...nel.org, Song Liu <songliubraving@...com>,
	Yonghong Song <yhs@...com>,
	John Fastabend <john.fastabend@...il.com>,
	Hao Luo <haoluo@...gle.com>, Steven Rostedt <rostedt@...dmis.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Alan Maguire <alan.maguire@...cle.com>,
	David Laight <David.Laight@...lab.com>,
	Thomas Weißschuh <thomas@...ch.de>,
	Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH 22/22] man2: Add uprobe syscall page

On Thu, May 01, 2025 at 11:26:46PM +0200, Alejandro Colomar wrote:
> Hi Jiri,
> 
> On Tue, Apr 22, 2025 at 10:45:41PM +0200, Alejandro Colomar wrote:
> > On Tue, Apr 22, 2025 at 04:01:56PM +0200, Jiri Olsa wrote:
> > > > > +is an alternative to breakpoint instructions
> > > > > +for triggering entry uprobe consumers.
> > > > 
> > > > What are breakpoint instructions?
> > > 
> > > it's int3 instruction to trigger breakpoint (on x86_64)
> > 
> > I guess it's something that people who do that stuff understand.
> > I don't, but I guess your intended audience will be okay with it.  :)
> > 
> > > > The pages are almost identical.  Should we document both pages in the
> > > > same page?
> > > 
> > > great, I was wondering this was an option, looks much better
> > > should we also add uprobe link, like below?
> > 
> > Yep, sure.  Thanks for the reminder!
> 
> From what I see, I should not yet merge the patch, right?  The kernel
> code is under review, right?

right, we need to figure out other stuff first

thanks,
jirka

> 
> 
> Have a lovely night!
> Alex
> 
> > 
> > 
> > Have a lovely night!
> > Alex
> > 
> > -- 
> > <https://www.alejandro-colomar.es/>
> 
> 
> 
> -- 
> <https://www.alejandro-colomar.es/>