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Commit aabae165 authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
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perf header: Display missing features 



Display missing features in header info, like:

  $ perf report --header-only
  # ========
  # captured on: Mon Oct 10 09:39:47 2016
  ...
  # missing features: HEADER_TRACING_DATA HEADER_CPU_TOPOLOGY ...

To help in diagnosing problems.

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Tested-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-bh5gp84gobdmyl345dcp64se@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent f45f5615

tools/perf/util/header.c

+9 −1
Original line number Diff line number Diff line
@@ -2251,7 +2251,7 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full) 
	struct perf_header *header = &session->header;

	int fd = perf_data_file__fd(session->file);

	struct stat st;

	int ret;

	int ret, bit;



	hd.fp = fp;

	hd.full = full;
@@ -2264,6 +2264,14 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full) 


	perf_header__process_sections(header, fd, &hd,

				      perf_file_section__fprintf_info);



	fprintf(fp, "# missing features: ");

	for_each_clear_bit(bit, header->adds_features, HEADER_LAST_FEATURE) {

		if (bit)

			fprintf(fp, "%s ", feat_ops[bit].name);

	}



	fprintf(fp, "\n");

	return 0;

}