linux-kernel - [PATCH 06/10] perf intel-pt/bts: Define JITDUMP_USE_ARCH

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Message-Id: <1459547826-20100-7-git-send-email-acme@kernel.org>
Date:	Fri,  1 Apr 2016 18:57:02 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Jiri Olsa <jolsa@...hat.com>,
	Stephane Eranian <eranian@...gle.com>,
	Arnaldo Carvalho de Melo <acme@...hat.com>
Subject: [PATCH 06/10] perf intel-pt/bts: Define JITDUMP_USE_ARCH_TIMESTAMP

From: Adrian Hunter <adrian.hunter@...el.com>

For Intel PT / BTS, define the environment variable that selects TSC
timestamps in the jitdump file.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Stephane Eranian <eranian@...gle.com>
Link: http://lkml.kernel.org/r/1457426333-30260-1-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/arch/x86/util/intel-bts.c | 5 +++++
 tools/perf/arch/x86/util/intel-pt.c  | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/tools/perf/arch/x86/util/intel-bts.c b/tools/perf/arch/x86/util/intel-bts.c
index d66f9ad4df2e..7dc30637cf66 100644
--- a/tools/perf/arch/x86/util/intel-bts.c
+++ b/tools/perf/arch/x86/util/intel-bts.c
@@ -438,6 +438,11 @@ struct auxtrace_record *intel_bts_recording_init(int *err)
 	if (!intel_bts_pmu)
 		return NULL;
 
+	if (setenv("JITDUMP_USE_ARCH_TIMESTAMP", "1", 1)) {
+		*err = -errno;
+		return NULL;
+	}
+
 	btsr = zalloc(sizeof(struct intel_bts_recording));
 	if (!btsr) {
 		*err = -ENOMEM;
diff --git a/tools/perf/arch/x86/util/intel-pt.c b/tools/perf/arch/x86/util/intel-pt.c
index a3395179c9ee..a07b9605e93b 100644
--- a/tools/perf/arch/x86/util/intel-pt.c
+++ b/tools/perf/arch/x86/util/intel-pt.c
@@ -1027,6 +1027,11 @@ struct auxtrace_record *intel_pt_recording_init(int *err)
 	if (!intel_pt_pmu)
 		return NULL;
 
+	if (setenv("JITDUMP_USE_ARCH_TIMESTAMP", "1", 1)) {
+		*err = -errno;
+		return NULL;
+	}
+
 	ptr = zalloc(sizeof(struct intel_pt_recording));
 	if (!ptr) {
 		*err = -ENOMEM;
-- 
2.5.5