From: Andi Kleen <[email protected]>
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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