[PATCH V2 01/22] perf header: Add Instruction Tracing feature

Adrian Hunter
2014-11-20T13:25:26Z

Add a feature to indicate that a perf.data file
contains Instruction Tracing data.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/util/header.c | 14 ++++++++++++++
tools/perf/util/header.h | 1 +
2 files changed, 15 insertions(+)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index b20e40c..0fe5301 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -869,6 +869,13 @@ static int write_branch_stack(int fd __maybe_unused,
return 0;
}

+static int write_itrace(int fd __maybe_unused,
+ struct perf_header *h __maybe_unused,
+ struct perf_evlist *evlist __maybe_unused)
+{
+ return 0;
+}
+
static void print_hostname(struct perf_header *ph, int fd __maybe_unused,
FILE *fp)
{
@@ -1163,6 +1170,12 @@ static void print_branch_stack(struct perf_header *ph __maybe_unused,
fprintf(fp, "# contains samples with branch stack\n");
}

+static void print_itrace(struct perf_header *ph __maybe_unused,
+ int fd __maybe_unused, FILE *fp)
+{
+ fprintf(fp, "# contains Instruction Traces\n");
+}
+
static void print_pmu_mappings(struct perf_header *ph, int fd __maybe_unused,
FILE *fp)
{
@@ -1873,6 +1886,7 @@ static const struct feature_ops feat_ops[HEADER_LAST_FEATURE] = {
FEAT_OPA(HEADER_BRANCH_STACK, branch_stack),
FEAT_OPP(HEADER_PMU_MAPPINGS, pmu_mappings),
FEAT_OPP(HEADER_GROUP_DESC, group_desc),
+ FEAT_OPA(HEADER_ITRACE, itrace),
};

struct header_print_data {
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 3bb90ac..990edcf 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -30,6 +30,7 @@ enum {
HEADER_BRANCH_STACK,
HEADER_PMU_MAPPINGS,
HEADER_GROUP_DESC,
+ HEADER_ITRACE,
HEADER_LAST_FEATURE,
HEADER_FEAT_BITS = 256,
};
--
1.9.1