From mboxrd@z Thu Jan 1 00:00:00 1970 From: rostedt@goodmis.org (Steven Rostedt) Date: Thu, 27 Nov 2014 09:58:25 -0500 Subject: [PATCH] arm: ftrace: Adds support for ftrace operations In-Reply-To: References: <1415372352-15664-1-git-send-email-jjhiblot@traphandler.com> <20141107115225.72bc6cbf@gandalf.local.home> <545CFAF4.8030104@traphandler.com> <20141125182038.04497ec0@gandalf.local.home> Message-ID: <20141127095825.37f57197@gandalf.local.home> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, 27 Nov 2014 11:23:45 +0100 Jean-Jacques Hiblot wrote: > 2014-11-26 0:20 GMT+01:00 Steven Rostedt : > > On Mon, 24 Nov 2014 10:59:24 +0100 > > Jean-Jacques Hiblot wrote: > > > >> Hi Steve, > >> did you get a chance of running your tests suite on real hardware with > >> this patch? I'd be really interested in the results. > > > > Yes I finally got it working on my beaglebone white. It passed all the > > tests that passed without it. Although I'm not sure this patch itself > > was tested as I didn't have kprobes which might use it. > > > Thanks for testing it. At least it doesn't cause regression. > What do you mean by not having krpobes which might use it ? Are you > thinking of the kprobe optimization based on ftrace ? > Yep. My tests use that. But as ARM doesn't have an mfentry where functions probed by kprobes at the start are optimized with ftrace, my tests wont test it. I also didn't have kprobes enabled on this board. Is it fully supported in ARM, and does kprobes use it there too? -- Steve