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Subject[PATCH 01/44] perf header: Add AUX area tracing feature
Date
Add a feature to indicate that a perf.data file
contains AUX area data.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
---
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 fff3b2a..a93c466 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_auxtrace(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)
{
@@ -1151,6 +1158,12 @@ static void print_branch_stack(struct perf_header *ph __maybe_unused,
fprintf(fp, "# contains samples with branch stack\n");
}

+static void print_auxtrace(struct perf_header *ph __maybe_unused,
+ int fd __maybe_unused, FILE *fp)
+{
+ fprintf(fp, "# contains AUX area data (e.g. instruction trace)\n");
+}
+
static void print_pmu_mappings(struct perf_header *ph, int fd __maybe_unused,
FILE *fp)
{
@@ -1861,6 +1874,7 @@ 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_AUXTRACE, auxtrace),
};

struct header_print_data {
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 3bb90ac..d4d5796 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_AUXTRACE,
HEADER_LAST_FEATURE,
HEADER_FEAT_BITS = 256,
};
--
1.9.1


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