From: Andi Kleen <a...@linux.intel.com>
The original lbr-as-callstack code ignored the maxium callgraph
length set by the user. Fix this.
Signed-off-by: Andi Kleen <a...@linux.intel.com>
---
tools/perf/util/machine.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 4032634..853639c 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1372,7 +1372,7 @@ static int machine__resolve_callchain_sample(struct
machine *machine,
}
if (callchain_param.branch_callstack) {
- int nr = branch->nr;
+ int nr = min(max_stack, branch->nr);
struct branch_entry be[nr];
for (i = 0; i < nr; i++) {
@@ -1397,6 +1397,7 @@ static int machine__resolve_callchain_sample(struct
machine *machine,
if (err)
return err;
}
+ chain_nr -= nr;
}
if (chain->nr > PERF_MAX_STACK_DEPTH) {
--
1.8.3.1
--
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