linux-kernel - [PATCH v1 1/3] perf record: enable LBR callstack capture jointly with thread stack

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Message-ID: <e9e00090-66fb-d2a4-c90f-1d12344f7788@linux.intel.com>
Date:   Fri, 9 Aug 2019 18:23:58 +0300
From:   Alexey Budankov <alexey.budankov@...ux.intel.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>
Cc:     Jiri Olsa <jolsa@...hat.com>, Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        "Jin, Yao" <yao.jin@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH v1 1/3] perf record: enable LBR callstack capture jointly with
 thread stack


Enable '-j stack' applicability together with '--call-graph dwarf'
option so thread stack data and LBR call stack could be captured 
jointly:

  $ perf record -g --call-graph dwarf,1024 -j stack,u -- stack_test

Signed-off-by: Alexey Budankov <alexey.budankov@...ux.intel.com>
---
 tools/perf/util/parse-branch-options.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c
index 726e8d9e8c54..4ed20c833d44 100644
--- a/tools/perf/util/parse-branch-options.c
+++ b/tools/perf/util/parse-branch-options.c
@@ -30,6 +30,7 @@ static const struct branch_mode branch_modes[] = {
 	BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
 	BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),
 	BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),
+	BRANCH_OPT("stack", PERF_SAMPLE_BRANCH_CALL_STACK),
 	BRANCH_END
 };
 
-- 
2.20.1