Re: [PATCH V4 10/11] perf intel-pt: Add documentation for pause / resume

From: Andi Kleen <ak@linux.intel.com>
To: Adrian Hunter <adrian.hunter@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	 Ingo Molnar <mingo@redhat.com>,
	Mark Rutland <mark.rutland@arm.com>,
	 Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	 Heiko Carstens <hca@linux.ibm.com>,
	Thomas Richter <tmricht@linux.ibm.com>,
	 Hendrik Brueckner <brueckner@linux.ibm.com>,
	 Suzuki K Poulose <suzuki.poulose@arm.com>,
	Mike Leach <mike.leach@linaro.org>,
	 James Clark <james.clark@arm.com>,
	coresight@lists.linaro.org,
	 linux-arm-kernel@lists.infradead.org,
	Yicong Yang <yangyicong@hisilicon.com>,
	 Jonathan Cameron <jonathan.cameron@huawei.com>,
	 Will Deacon <will@kernel.org>,
	 Arnaldo Carvalho de Melo <acme@kernel.org>,
	 Jiri Olsa <jolsa@kernel.org>, Namhyung Kim <namhyung@kernel.org>,
	 Ian Rogers <irogers@google.com>,
	linux-kernel@vger.kernel.org,  linux-perf-users@vger.kernel.org
Subject: Re: [PATCH V4 10/11] perf intel-pt: Add documentation for pause / resume
Date: Tue, 16 Jan 2024 03:15:14 -0800	[thread overview]
Message-ID: <87ply1lebh.fsf@linux.intel.com> (raw)
In-Reply-To: <20240111081914.3123-11-adrian.hunter@intel.com> (Adrian Hunter's message of "Thu, 11 Jan 2024 10:19:13 +0200")

Adrian Hunter <adrian.hunter@intel.com> writes:
> +
> +For example, to trace only the uname system call (sys_newuname) when running the
> +command line utility uname:
> +
> + $ perf record --kcore -e
> intel_pt/aux-action=start-paused/k,syscalls:sys_enter_newuname/aux-action=resume/,syscalls:sys_exit_newuname/aux-action=pause/
> uname

It's unclear if the syntax works for hardware break points, kprobes, uprobes too?
That would be most useful. If it works would be good to add examples for it.

-Andi