linux-kernel - [tip:perf/core] perf report: Also do default setup for synthesized branch stacks

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Message-ID: <tip-fb9fab66e6e3ee737e521c899684c6d684b24a22@git.kernel.org>
Date:	Tue, 29 Sep 2015 01:44:33 -0700
From:	tip-bot for Adrian Hunter <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	adrian.hunter@...el.com, jolsa@...hat.com, hpa@...or.com,
	linux-kernel@...r.kernel.org, acme@...hat.com, tglx@...utronix.de,
	mingo@...nel.org
Subject: [tip:perf/core] perf report:
  Also do default setup for synthesized branch stacks

Commit-ID:  fb9fab66e6e3ee737e521c899684c6d684b24a22
Gitweb:     http://git.kernel.org/tip/fb9fab66e6e3ee737e521c899684c6d684b24a22
Author:     Adrian Hunter <adrian.hunter@...el.com>
AuthorDate: Fri, 25 Sep 2015 16:15:41 +0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 28 Sep 2015 16:54:45 -0300

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@...el.com>
Cc: Jiri Olsa <jolsa@...hat.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@...hat.com>
---
 tools/perf/builtin-report.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 7af35af..92f7c5a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -829,6 +829,9 @@ repeat:
 	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.
--
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