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perf report: Also do default setup for synthesized branch stacks 

The 'perf report' tool will default to displaying branch stacks (-b
option) if they are present.  Make that also happen for synthesized
branch stacks.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-11-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2015-09-25 16:15:41 +03:00 committed by Arnaldo Carvalho de Melo
parent c7eced63f2
commit fb9fab66e6
1 changed files with 3 additions and 0 deletions
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3
tools/perf/builtin-report.c
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@ -829,6 +829,9 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
has_br_stack = perf_header__has_feat(&session->header,
HEADER_BRANCH_STACK);
if (itrace_synth_opts.last_branch)
has_br_stack = true;
/*
* Branch mode is a tristate:
* -1 means default, so decide based on the file having branch data.