From: Andi Kleen <a...@linux.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 cf6b48b..8acac89 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1418,7 +1418,7 @@ 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 2f47110..72edc4e 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1498,6 +1498,8 @@ 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;
}
--
1.9.3
--
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