perf intel-pt/bts: Define JITDUMP_USE_ARCH_TIMESTAMP

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

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Stephane Eranian <eranian@google.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@redhat.com>

2 files changed, 10 insertions, 0 deletions

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;