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-rw-r--r--tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c21
1 files changed, 20 insertions, 1 deletions
diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
index 6e30b455cbd6..5a26fc3a9706 100644
--- a/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
+++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/misc.c
@@ -259,13 +259,32 @@ u64 *get_intr_regs(struct event *event, void *sample_buff)
u64 *intr_regs;
size_t size = 0;
- if ((type ^ PERF_SAMPLE_REGS_INTR))
+ if ((type ^ (PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_BRANCH_STACK)) &&
+ (type ^ PERF_SAMPLE_REGS_INTR))
return NULL;
intr_regs = (u64 *)perf_read_first_sample(sample_buff, &size);
if (!intr_regs)
return NULL;
+ if (type & PERF_SAMPLE_BRANCH_STACK) {
+ /*
+ * PERF_RECORD_SAMPLE and PERF_SAMPLE_BRANCH_STACK:
+ * struct {
+ * struct perf_event_header hdr;
+ * u64 number_of_branches;
+ * struct perf_branch_entry[number_of_branches];
+ * u64 data[];
+ * };
+ * struct perf_branch_entry {
+ * u64 from;
+ * u64 to;
+ * u64 misc;
+ * };
+ */
+ intr_regs += ((*intr_regs) * 3) + 1;
+ }
+
/*
* First entry in the sample buffer used to specify
* PERF_SAMPLE_REGS_ABI_64, skip perf regs abi to access