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Groups > linux.kernel > #1234859

[tip:perf/core] perf inject: Set branch stack feature flag when synthesizing branch stacks

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Commit-ID:  051a01b9a2c1c1ef3049973a43d9ed4ddcc946f3
Gitweb:     http://git.kernel.org/tip/051a01b9a2c1c1ef3049973a43d9ed4ddcc946f3
Author:     Adrian Hunter <adrian.hunter@intel.com>
AuthorDate: Fri, 25 Sep 2015 16:15:43 +0300
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Mon, 28 Sep 2015 16:57:59 -0300

perf inject: Set branch stack feature flag when synthesizing branch stacks

The branch stack feature flag is set by 'perf record' when recording
data that contains branch stacks.  Consequently, when 'perf inject'
synthesizes branch stacks, the feature flag should be set also.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-13-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-inject.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index f62c49b..8638fad 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -537,9 +537,13 @@ static int __cmd_inject(struct perf_inject *inject)
 		 * The AUX areas have been removed and replaced with
 		 * synthesized hardware events, so clear the feature flag.
 		 */
-		if (inject->itrace_synth_opts.set)
+		if (inject->itrace_synth_opts.set) {
 			perf_header__clear_feat(&session->header,
 						HEADER_AUXTRACE);
+			if (inject->itrace_synth_opts.last_branch)
+				perf_header__set_feat(&session->header,
+						      HEADER_BRANCH_STACK);
+		}
 		session->header.data_offset = output_data_offset;
 		session->header.data_size = inject->bytes_written;
 		perf_session__write_header(session, session->evlist, fd, true);
--
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[PATCH 00/25] perf tools: minor improvements to Intel PT related stuff Adrian Hunter <adrian.hunter@intel.com> - 2015-09-25 15:30 +0200
  [PATCH 01/25] perf auxtrace: Fix 'instructions' period of zero Adrian Hunter <adrian.hunter@intel.com> - 2015-09-25 15:30 +0200
    Re: [PATCH 01/25] perf auxtrace: Fix 'instructions' period of zero Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-09-28 16:20 +0200
    Re: [PATCH 01/25] perf auxtrace: Fix 'instructions' period of zero Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-09-28 16:20 +0200
    [tip:perf/core] perf auxtrace: Fix 'instructions' period of zero tip-bot for Adrian Hunter <tipbot@zytor.com> - 2015-09-29 11:00 +0200
  [PATCH 12/25] perf inject: Set branch stack feature flag when synthesizing branch stacks Adrian Hunter <adrian.hunter@intel.com> - 2015-09-25 15:30 +0200
    [tip:perf/core] perf inject:   Set branch stack feature flag when synthesizing branch stacks tip-bot for Adrian Hunter <tipbot@zytor.com> - 2015-09-29 10:50 +0200
  [PATCH 04/25] perf intel-pt: Make logging slightly more efficient Adrian Hunter <adrian.hunter@intel.com> - 2015-09-25 15:30 +0200
    [tip:perf/core] perf intel-pt:   Make logging slightly more efficient tip-bot for Adrian Hunter <tipbot@zytor.com> - 2015-09-29 10:50 +0200
  [PATCH 07/25] perf tools: Add more documentation to export-to-postgresql.py script Adrian Hunter <adrian.hunter@intel.com> - 2015-09-25 15:30 +0200
    [tip:perf/core] perf tools:   Add more documentation to export-to-postgresql.py script tip-bot for Adrian Hunter <tipbot@zytor.com> - 2015-09-29 10:50 +0200
  [PATCH 21/25] perf tools: Add perf_evlist__id2evsel_strict() Adrian Hunter <adrian.hunter@intel.com> - 2015-09-25 15:30 +0200
    [tip:perf/core] perf evlist: Add perf_evlist__id2evsel_strict() tip-bot for Adrian Hunter <tipbot@zytor.com> - 2015-09-29 10:50 +0200
  [PATCH 14/25] perf intel-pt: Support generating branch stack Adrian Hunter <adrian.hunter@intel.com> - 2015-09-25 15:30 +0200
    [tip:perf/core] perf intel-pt: Support generating branch stack tip-bot for Adrian Hunter <tipbot@zytor.com> - 2015-09-29 10:50 +0200
  Re: [PATCH 00/25] perf tools: minor improvements to Intel PT related  stuff Arnaldo Carvalho de Melo <acme@kernel.org> - 2015-09-28 22:40 +0200
    Re: [PATCH 00/25] perf tools: minor improvements to Intel PT related  stuff Adrian Hunter <adrian.hunter@intel.com> - 2015-09-29 13:20 +0200

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