linux-kernel - Re: [GIT PULL] tracing/rtla: Updates to the RTLA tool

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Message-ID: <20220323154300.0be32927@gandalf.local.home>
Date:   Wed, 23 Mar 2022 15:43:00 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Daniel Bristot de Oliveira <bristot@...nel.org>
Subject: Re: [GIT PULL] tracing/rtla: Updates to the RTLA tool

On Wed, 23 Mar 2022 11:15:30 -0700
Linus Torvalds <torvalds@...ux-foundation.org> wrote:

> That said, mentioning the perf tools, I wish the tracing tools would
> do a bit more package checking and helpful error messages too, rather
> than just fail with
> 
>     fatal error: tracefs.h: No such file or directory
> 
> when (presumably) libtracefs and friends are needed.

Yes exactly.

Daniel, care to update the Makefile to check for libtracefs and friends and
give a more informative message when it fails?

You can look at the trace-cmd Makefile that does so.

-- Steve