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Date:	Mon, 16 Jan 2012 14:22:22 +0900
From:	Akihiro Nagai <>
To:	Arnaldo Carvalho de Melo <>,
	Ingo Molnar <>,
	Peter Zijlstra <>,
	Frederic Weisbecker <>,
	David Ahern <>
	Masami Hiramatsu <>,,
	Akihiro Nagai <>,
	Peter Zijlstra <>,
	Frederic Weisbecker <>,
	Paul Mackerras <>, Ingo Molnar <>,
	Arnaldo Carvalho de Melo <>,
	David Ahern <>,
	Masami Hiramatsu <>
Subject: [PATCH -tip v4 3/5] perf script: enhance IP and ADDR correlate
 detection for BTS

BTS records branch_from_addr and branch_to_addr in IP and ADDR field in perf_sample.
This patch detects this correlation in perf-script.

# perf script -f ip,addr,dso,sym
3f03e016b0    _start (/lib64/ ffffffff814675d2 irq_return ([kernel.kallsyms])
3f03e016b0    _start (/lib64/ ffffffff814675d2 irq_return ([kernel.kallsyms])
3f03e04b80 _dl_start (/lib64/       3f03e016b3     _start (/lib64/
3f03e04b80 _dl_start (/lib64/ ffffffff814675d2 irq_return ([kernel.kallsyms])
3f03e04ba6 _dl_start (/lib64/ ffffffff814675d2 irq_return ([kernel.kallsyms])
3f03e04bad _dl_start (/lib64/ ffffffff814675d2 irq_return ([kernel.kallsyms])
3f03e04c1d _dl_start (/lib64/       3f03e04bfb  _dl_start (/lib64/

Signed-off-by: Akihiro Nagai <>
Cc: Peter Zijlstra <>
Cc: Frederic Weisbecker <>
Cc: Paul Mackerras <>
Cc: Ingo Molnar <>
Cc: Arnaldo Carvalho de Melo <>
Cc: David Ahern <>
Cc: Masami Hiramatsu <>

 tools/perf/builtin-script.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 11859eb..360a4da 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -312,6 +312,12 @@ static bool sample_addr_correlates_sym(struct perf_event_attr *attr)
 	     (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)))
 		return true;
+	/* BTS Events */
+	if ((attr->type == PERF_TYPE_HARDWARE) &&
+	    (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
+	    (attr->sample_period == 1))
+		return true;
 	return false;

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