linux-kernel - [PATCH 4/4] perf record: add new -I option to sample interrupted machine state

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Date:	Wed,  9 Jul 2014 00:15:59 +0200
From:	Stephane Eranian <eranian@...gle.com>
To:	linux-kernel@...r.kernel.org
Cc:	peterz@...radead.org, mingo@...e.hu, ak@...ux.intel.com,
	jolsa@...hat.com, acme@...hat.com, namhyung@...nel.org
Subject: [PATCH 4/4] perf record: add new -I option to sample interrupted machine state

Add -I option to capture machine state registers at interrupt.

Use perf report -D to display the sampled register values 
in each sample.

Signed-off-by: Stephane Eranian <eranian@...gle.com>
---
 tools/perf/builtin-record.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 378b85b..17c45f8 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -876,6 +876,8 @@ const struct option record_options[] = {
 		    "sample transaction flags (special events only)"),
 	OPT_BOOLEAN(0, "per-thread", &record.opts.target.per_thread,
 		    "use per-thread mmaps"),
+	OPT_BOOLEAN('I', "sample-intr-regs", &record.opts.sample_intr_regs,
+		    "Sample machine register on interrupt"),
 	OPT_END()
 };
 
-- 
1.8.3.2

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