linux-kernel - [PATCH 9/9] test patch: Add fake branch cycles to input data in report/top

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Date:	Sat, 18 Jul 2015 08:24:54 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	acme@...nel.org
Cc:	jolsa@...nel.org, linux-kernel@...r.kernel.org,
	namhyung@...nel.org, Andi Kleen <ak@...ux.intel.com>
Subject: [PATCH 9/9] test patch: Add fake branch cycles to input data in report/top

From: Andi Kleen <ak@...ux.intel.com>

Not to be merged, but useful for testing if you don't have
hardware with cycles branch stack support.
---
 tools/perf/util/hist.c    | 2 +-
 tools/perf/util/machine.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index a6e9ddd..8a4bf84 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1421,7 +1421,7 @@ void hist__account_cycles(struct branch_stack *bs, struct addr_location *al,
 	struct branch_info *bi;
 
 	/* If we have branch cycles always annotate them. */
-	if (bs && bs->nr && bs->entries[0].flags.cycles) {
+	if (bs && bs->nr /* && bs->entries[0].flags.cycles */) {
 		int i;
 
 		bi = sample__resolve_bstack(sample, al);
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 7ff6827..1351f19 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1597,6 +1597,8 @@ struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
 		ip__resolve_ams(al->thread, &bi[i].to, bs->entries[i].to);
 		ip__resolve_ams(al->thread, &bi[i].from, bs->entries[i].from);
 		bi[i].flags = bs->entries[i].flags;
+		if (bi[i].flags.cycles == 0)
+			bi[i].flags.cycles = 123;
 	}
 	return bi;
 }
-- 
2.4.3

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